Based on the engineering background of Xizhuo coal mine resume construction, combined with the current situation of mine construction, according to the changes of design basic conditions during the period of suspension and construction, according to the current policies and regulations, compared with the update of standards and specifications, and combined with the development level of new technology,the project design scheme was optimized, including the layout of the mine production panel, the reconstruction and repair of buildings and structures, the mining and transportation system, separation and filling of underground gangue, heating and cooling, water treatment and drainage, water disaster prevention and control, etc. It can be used as a reference for the design of similar mine restoration projects.

In view of the situation that the knife-shaped layout of the first mining face in a mine due to the influence of anticline structure needs to be carried out on the docking stubble, According to the mining conditions and equipment supporting conditions of the working face, the docking process flow of the working face is designed, which can be carried out in four stages: preparation stage, adjustment stage, docking stubble stage and commissioning stage. At the same time, the accurate control and correction of measurement is an important key link of the working face docking, which runs through the whole process of the working face docking. By refining the workload of face-to-face work, strictly implementing the process of face-to-face work, and reasonably organizing the construction work, the rapid, safe and efficient docking of the working face is realized, which lays a solid foundation for the normal and orderly production of the mine. This case can provide reference for the smooth mining of working face under similar conditions.

This article introduces the sea the coal mine high salt Wells comprehensive treatment engineering of detailed design, analysis of China coal shaanxi yulin energy chemical industry co., LTD. The sea is coal and chemical branch each factory common conditions, water situation, the coal mine high salt well water quality condition, comparing the main technological process and technological characteristics, the entire high salt well water treatment process section to decorate, completed a set of advanced and economic comprehensive utilization of coal mine high salt well water treatment; The selection and arrangement of the process route provide reference and guidance for the comprehensive utilization of well water in coal mines and high-salt mines of coal chemical industry around Mongolia-Shaanxi region.

In view of the problems such as difficult to determine the reasonable size of coal pillar and support in gob side entry with composite roof, Taking the working face with one face and three roadways in 3-1 coal seam of Bojiang Haizi mine as the engineering background, the distribution law of coal pillar stress after mining is studied by using the methods of theoretical analysis and field measurement. The field measurement results show that the stress of coal pillar can be divided into low stress area and high stress area along the lateral direction, the distance between the low stress area and the edge of the goaf is 14m, and the distance between the high stress area and the edge of the goaf is 14-22m, the peak stress is 29Mpa, considering the development of coal seam fissures, coal wall spalling and other factors, the width of coal pillar in gob side entry driving is determined as 9m. At the same time, combined with the specific geological conditions, the gob side entry support scheme design and mine pressure observation are carried out. The roadway support practice shows that after the determined coal pillar width and anchor cable mesh support parameters are adopted in the test roadway, the surrounding rock of the roadway is stable, and the safe and efficient mining of the working face is realized.

In order to solve the problem of lack of special and reliable equipment in the safe and efficient treatment construction of low deformation roadway in coal mine, in response to the construction goal of "mechanized replacement, automatic reduction, intelligent unmanned" put forward by the State Administration of work safety, wpz is developed by analyzing the construction characteristics and functional requirements of equipment and adopting the way of mutual communication between wireless receiver and wireless remote controller- 45 / 700ly coal mine remote control repair machine, and detailed analysis of the repair machine working device, hydraulic system, remote control system, crawler body composition and working principle. Taking the floor heave treatment construction of Guqiao Coal Mine as an example, the performance of the electric control system of the remote control repair machine is stable, reliable and fast response. At the same time, a set of operation technology is summarized, which is convenient for the replacement of the crushing hammer and the side dump bucket and the replacement of the anchor rod (cable) construction, so as to provide a reference for the development of similar coal mine roadway floor heave remote treatment construction technology and equipment.

In order to explore the water-abandance of the aquifer on the roadway under complex hydrogeological contions, corresponding water disaster prevention and control measures were formulated to ensure the safe tunneling of the roadway. The long distance directional drilling technique was used to detect the aquifer on the roadway in advance before roadway tunneling. Based on the observation data of water quantity during borehole drilling, the water-abandance condition of aquifer on the roadway was studied. According to the waer attenuation curve of the borehole, the spatial difference of dydaulic connection between composite aquifer on the roadway was determined. It has been verified by practice that the long distance directional drilling can delineate the waer-abundance area of aquifer on the roadway more accurately, at the same time, it can also find out the hydraulic connection characteristics of the composite aquifer on the roadway, and play a significant role in interrepting the groundwater seepage from aquifer into the roadway. The results show that the long distance directional drilling technology is effective in water disaster prevention and control in tunneling roadway under the complicated hdydrogeological conditions.

In order to solve the problems that crack propagation for conventional hydraulic fracturing is affected by in-situ stress, which leads to single expansion form and formation of a blank zone of permeability enhancement on both sides of crack, this paper studied the control fracturing technology with pulse jet slotting in underground coal mine by considering the high rock-breaking efficiency of pulse jet and the induce effect of slot and pore water pressure. In this paper, through analyzing the impact stress wave effect, the rock-breaking and slotting mechanism of pulse jet by utilizing the water-hammer pressure fully was studied. The principle of control fracturing with pulse jet slotting to significantly improve the coal seam permeability was clarified. The key technical parameters, including jet slotting pressure, implementation pressure of control fracturing, and sealing length of the fracturing hole, were theoretically investigated. And the technological process of control fracturing with pulse jet slotting was discussed. Next, the three field tests of control fracturing, conventional fracturing and traditional borehole drainage, were carried out in a coal mine in Southwest China. And the gas extraction effects of three kinds of technologies were compared and analyzed. The results show that the control fracturing with pulse jet slotting could reduce the pressure of coal seam fracturing due to the pressure relief and pore pressure field. Through analyzing the change rules of gas content and water content of coal at different distances after fracturing, it was concluded that the influence range of control fracturing technology was far beyond the conventional fracturing, increasing by about 33%. The gas drainage quantity of single borehole was 0.034 m3/min after conducting the control fracturing, increasing by 3.7 times and 10.6 times higher than those of the conventional hydraulic fracturing and traditional borehole drainage; the gas drainage concentration was about 73%, which increased by 1.7 times and 2.25 times. The field test results show that the control fracturing with pulse jet slotting can achieve the long-term and high-efficiency extraction of coal gas, which provides the reference for the high-efficiency gas extraction in deep buried coal mines with low permeability.

Aiming at the current situation of gas control in Zhaozhuang coal mining face, through analysis of the gas source and emission law in the mining process of the face, combined with the actual design of the roadway layout of the face, the design and construction of high-level drilling and drainage technology, and the horizontal closed wall buried pipe Drainage technology, increase the bottom-drainage tunnel closed-wall buried pipe drainage technology, and conduct targeted and accurate drainage of gas accumulated in the cracked zone of the roof, gas accumulated in the collapse zone, and upwelling gas in the lower adjacent layer. Through further analysis, the changes in the concentration and scalar amount of the three sub-source combined three-dimensional drainage technologies in the mining process of the working face were obtained, and the main functions of the three drainage technologies in gas control were verified, and three types of drainage were given. The optimal mixing volume of extraction technology. Through the use of the new split-source combined three-dimensional extraction mode, the upper corner of the high-yield working face of the soft coal seam with a daily output of 10,000 tons under the U-shaped ventilation mode and the maximum gas concentration of the return airway are below 0.7%, which ensures the safe mining of the working face.

In order to study the disaster-causing mechanism of rock burst in wide coal pillar gob-side entry with thick and hard roof, taking the 4104 working face of a mine in Binchang mining area as the engineering background, theoretical analysis, numerical simulation, field monitoring and other methods were used to study and analyze the vertical stress distribution of wide coal pillar and the law of overlying rock activity under two mining disturbances, and the evolution mechanism of dynamic and static loads and the disaster-causing mechanism of rock burst in the working face were obtained. Aiming at 44.5 m wide coal pillar and 20 m thick and hard sandstone strata above the roof, a dynamic and static load source separation control scheme based on blasting pressure relief of side coal body and presplitting pressure relief of deep hole blasting of roof is designed. Through the analysis of microseismic monitoring results, the surrounding rock activity of the roadway before the adjustment is reduced by 92%, and the control effect is significant.

Aiming at the problems for high productivity deep well hoist of large operating load, high frequency of tightening rope and rope replacement, long occupation time of conventional rope adjustment, insufficient clamping force of manipulator and so on, the rope adjustment device and process of self balanced lifting multi rope friction hoist are proposed and optimized according to double wedge rope clamping principle and hydraulic clamping technology. Through the application in the wire rope replacement of auxiliary shaft hoist in Maiduoshan coal mine, it was proved that 96 hours of a single rope replacement time and RMB194,500.00 yuan of labor cost can be saved. The improved device has the advantages of simple, safe, fast and efficient rope changing process.

In order to reasonably solve the problem of large deformation of the mining roadway in the middle and lower layers of Laogongyingzi Coal Mine, this paper discusses the relationship between the overburden stratum movement and the stability of the surrounding rock based on the actual geological conditions of the 5# coal seam, and brings to light the erratic mechanism of the surrounding rock of roadway. It indicates that the additive effect of mining stress is the key factor causing the instability of the surrounding rock of the first mining face; It is becoming an asymmetric structure caused by the secondary rupture of the overlying rock forms , so notable partial loads is the prominent case affecting the unstable surrounding rock of the continuous working face ,and the narrow coal pillar is repeatedly disturbed by the mining, severe plastic destroy and reduced bearing capacity bring the unstable surrounding rock of the roadway. Based on the above analysis, the surrounding rock control idea of “enclosed and strengthened and differentiated treatment” is proposed,it has developed the self-supporting capacity of the surrounding rock by the surface shotcrete internal grouting , and it is the redouble anchor cable firming the brush-fire support power of the surrounding rock. It’s proved by the Field practice that the narrow coal pillar roadway can meet the requirements during the mining face ,the stability is better,and it is a reference for the improvement of the surrounding rock control of similar roadways.

Steeply inclined thick coal seam is a very special coal seam occurrence condition and the particularity of the mining methods determines the efficiency of coal mining, the stress evolution regularity of coal and rock mining process is a good way to reveal mechanism of disasters and so on steeply inclined thick coal seam mining way and to study the stress evolution regularity of coal and rock is very necessary. Based on COMSOL Multiphysics numerical simulation software, this paper conducted numerical simulation research on the stress evolution law of rock mass and coal body under the condition of horizontal subsection mining of 45# steeply inclined extra-thick coal seam in Wudong Coal Mine. The research results show that: (1) After the horizontal subsection mining of coal seam, the stress of rock strata near the roof of coal seam is large, and that near the floor of coal seam has little change. The stress variation range of overburden displacement stability shows the shape of "funnel". (2) The phenomenon of stress concentration occurs in the local area of overburden, and a circular "stress concentration circle" is produced. The size and shape of the "stress concentration circle" change with the mining of coal seam, and the phenomenon of stress concentration is gradually weakened. (3) The stress concentration of coal in working face is mostly distributed in the coal near the roof, while the stress concentration degree of coal near the floor is smaller than that of the roof. (4) The axial stress distribution of working face can be divided into three zones: plastic zone, elastic zone and original rock stress zone. The lateral stress of coal body along the strike direction decreases with the increase of distance from working face.

In order to study the law of overburden failure under condition of shallow buried depth and adjacent coal seams, 214201 working face of Hanjiawan Coal Mine was taken as the background, method of "ground drilling+leakage observation" and similar material simulation for overlying rocks have been carried out. By sorting out the measured data, the failure characteristics of overburden, development height of "two zones" of overburden and breaking angle of strata are analyzed under the geological and mining conditions. Measured results show that caving-height ratio is 6.5 for only 3-1 coal with insufficient mining, and 7.3 for only 4-2 coal. Similar material simulation show that caving-height ratio is 6.0 for 2-2 coal, 6.8 for 3-1 coal, and 5.8 for only 4-2 coal. Fracture angle of rock formation of 2-2 coal strata is 59.5~69°, that of 3-1 coal strata is 66~71° and that of 4-2 coal strata is 57~68°. Step spacing for the first time is 45m, and the periodic weighting length is 11~17m for 2-2 coal. Step spacing for the first time is 63m, and the periodic weighting length is 13~21m for 4-2 coal. Research shows that under condition of under condition of shallow buried depth and adjacent coal seams in Hanjiawan Coal Mine, only "two zones" are developed in the overlying strata, and the caving ratio of the lower coal seam is reduced, the caving ratio of the upper coal seam is increased, and the fracture angle of rock formation of the lower rock strata is reduced.

The floor heave of the fully mechanized caving roadway not only causes damage to the roadway, but also has an important impact on the stability of the narrow coal pillars, the filling body beside the roadway and the entire roadway. The strong floor heave brings a lot of maintenance and renovation work, which seriously affects the normal operation of the mine. Production greatly increases the support and maintenance costs of the roadway. In this paper, the Winker elastic foundation theory model is used to establish a mechanical model of the floor heave of the roadway along the goaf. Combined with engineering cases, the mechanical model of the floor heave of the roadway is verified. The research results show that the deformation of the solid coal and the side floor of the roadside support is close to zero. The floor deformation of the roadway area presents a "parabolic" characteristic, with non-positive symmetry. The maximum deformation of the floor heave is located near the side of the roadway support body, with a maximum value of 628 mm; the maximum value of the floor heave after 100 days of actual deformation monitoring is 645 mm, the theoretical model The error between the maximum value and the measured maximum value is 2.6%.

According to the diversification and stability of power consumption of coal mining face equipment, the working principle of the circuit topology is analyzed in detail according to the different energy transmission characteristics of the two power modules of the single-phase hybrid cascade rectifier, and based on the mathematical model, the paper proposes A new type of control strategy. On this basis, the problem of current zero-crossing distortion of the bridgeless rectifier is solved. And compared with the traditional control strategy, focusing on the theoretical analysis and mathematical derivation of the relationship between DC side voltage fluctuation and reactive power, and further comparing and analyzing the dynamic response speed when the load suddenly changes, and the simulation verifies the theoretical analysis. The correctness and effectiveness of the control strategy provide an important theoretical basis for selecting the appropriate control strategy in different applications.

In order to recognize the cutting state of shearer accurately, a pattern recognition method based on wavelet packet decomposition and learning vector quantization (LVQ) neural network is proposed. The vibration signal is decomposed by wavelet packet to realize the preprocessing of vibration signal and obtain several sub-bands. On this basis, the variance of each frequency band is calculated and used as the eigenvector. Then, the calculated frequency band variance is taken as the eigenvector and input to LVQ neural network to recognize the coal cutting state of shearer. The experimental results show that the method can realize the recognition of typical coal rock cutting state of shearer, and the average recognition accuracy is high, which is of great significance to realize the "unmanned" of fully mechanized working face.

Due to the complex environment of a coal mine and its uncertain conditions of coal and rock, the recognition of coal-rock interface has always been a very difficult problem in the world. From the demand of coal-rock interface recognition in coal mining, this paper expounds the research status of image-based coal-rock interface recognition techniques, analyzes the adaptation conditions of various methods, and discusses the applications of coal-rock interface recognition. Aiming at the existing problems, such as limited experimental condition, and difficulties in practical usage, this paper proposes to combine the image-based 3D modeling method and those methods which focus on the different dielectric property of coal and rock. This method enable us to visualize the vertical direction of the a coal-rock interface, and efficiently control the head movement of a shearer. Finally, simple analysis of the importance and its applications of the camera position is given, which is a help for the research of coal-rock interface recognition.

The sizing crusher was taken as the research object. This paper briefly introduces the structure characteristics of the sizing crusher and its composition, and the present situation of intelligent technology of the sizing crusher is systematically studied and analyzed. According to the current demand of intelligent development of the coal preparation plant, four key technologies of intelligent sizing crusher which need to be further studied in the future are proposed and corresponding technological breakthrough ideas are given．These include intelligent perception technology, intelligent analysis and decision technology, intelligent execution technology and intelligent health management technology. It is expected to provide reference for the design and development of intelligent sizing crusher.

The main influence factor on the quality of dense medium coal preparation product is the density of dense medium suspension. However, due to the complex process, numerous equipment and strong nonlinear characteristics, it is difficult to realize the optimal control of dense medium suspension density. In this paper, an optimal control method based on reinforcement learning is proposed to update the density setting-value online. The two step iterations of strategy updating and strategy evaluation are implemented by different neural networks. And a model-free controller is established. Finally, on the MATLAB simulation platform, the proposed method is compared with the traditional PI control method to verify the effectiveness of the proposed method.

Channel wave seismic exploration is an important method for fine detection of hidden small structures inside the coal mining face. Extraction of channel wave signal from seismic data is the most key step in channel wave seismic exploration. However, the channel wave is a kind of dispersion wave. At present, it is a difficulty to extract high-precision amplitude preservation channel wave signal from the complex seismic signals in which various wave patterns interfere with each other and overlap. S-transform can analyze signals in time domain and frequency domain at the same time, and has advantages in time-frequency characteristic analysis of non-stationary dispersion channel wave signal. However, the Gaussian window function of the traditional discrete S-transform algorithm loses symmetry. As a result, the negative frequency part of the time-frequency spectrum of the signal is distorted after the traditional discrete S-transform. When the traditional discrete S-transform is used to seismic data filtering and channel wave signal extracting in time-frequency domain from the channel wave seismic data, due to the distortion of time-frequency spectrum in the negative frequency part, the energy distribution in the time-frequency spectrum is inconsistent with the actual time-frequency distribution of seismic signal energy, so time-frequency spectrum of negative frequency cannot participate in filtering and inverse transformation, resulting in the amplitude reduction of time domain channel wave signal after filtering and inverse transformation only with positive frequency time-frequency spectrum. The improved discrete S-transform algorithm proposed in this paper can effectively overcome the time-frequency spectrum distortion of traditional discrete S-transform at negative frequency. By comparing and analyzing the time-frequency spectrum of channel wave seismic data obtained by two discrete algorithms of S-transform, it is verified that the improved discrete S-transform algorithm realizes the symmetry of Gaussian window function, and makes the transformed time-frequency spectrum in negative frequency part no longer distorted and symmetrical with the time-frequency spectrum of positive frequency part. Through applications of time-frequency domain filtering and channel wave signal extraction of numerical simulation and measured channel wave seismic data, it shows that compared with the traditional discrete S-transform, the actual distribution of spectral energy in time domain and frequency domain of the improved discrete S-transform is more consistent with that of the original signal in time domain and frequency domain, amplitude preservation extraction of channel wave signal can be realized by filtering and inverse S-transform in time domain and frequency domain.

In view of the difficulties in stability analysis and shape design of open-pit mine slope with faults and dip-in weak strata under the condition of horizontal mining and inner row tracing and pressing, taking into account the difference of stratum lithology in the vertical direction of open-pit mine layered slope, service time in the process of engineering development, required stability degree and the three-dimensional effect of deep slope stability, taking the south side of the first mining area of Shengli East No.2 open-pit coal mine as the engineering background, the two-dimensional limit equilibrium method combined with three-dimensional numerical simulation was used to optimize the slope shape of open-pit mine with faults and dip-in weak strata. The research shows that the slope stability of Shengli East No.2 Open-pit Coal Mine is mainly controlled by a series of dip weak layers in the slope, and the fault may serve as the boundary of the sliding body. The potential landslide mode is slicing-bedding sliding or slicing-bedding-bulging failure with circular arc or fault as the side interface and weak layer as the bottom interface. With the increase of tracking distance, the failure mode of slope gradually transits from shallow large-scale failure to deep failure, which is the fundamental reason for the decline of deep slope stability After subsection optimization, the slope should be divided into three stages, the overall slope angle is 14, and the tracking distance between the horizontal mining work side and the inner dump should be 50m.

In order to study the internal and external failure modes and crack evolution law of mine filling, Use PCI-2 acoustic emission tester and pressure testing machine to analyze the strength, AE activity and crack evolution of gangue backfill under different water cement ratio and cementitious materials.the results showed：(1)The minimum 3-day strength of gangue filling body is 3.6 mpa, which meets the filling requirements. The time of maximum stress value can be delayed by appropriately increasing the water cement ratio.(2)When the stress is the largest, AE activity is the most intense, and the cracks of the specimen are connected up and down, showing tensile failure.(3)The crack evolution of gangue specimen is divided into closed compaction stage, linear elastic deformation stage, unstable propagation stage and post-peak deformation stage. During the closed compaction stage and linear elastic deformation stage, the AE signal of the specimen was weak ; The AE signal of gangue specimen in unstable stage is violent and the internal particle collision is obvious. The deformation after the peak is large, and the AE activity decreases sharply.

Abstract: Heavy medium vessel is widely used in thermal coal separation. The flow field in the shallow tank significantly affects the separation effect. In this paper, Fluent software is used to study the flow field inside the W26F54 heavy medium vessel, and the critical sorting granularity at different positions of the shallow tank is calculated. The results show that there are eddy currents and reflux in the suspension in shallow tank. The flow ratio of horizontal flow and upwelling flow significantly affects the velocity field and density field in the shallow tank. Too large or too small the flow ratio is not conducive to material separation or transportation. When the flow ratio is 8:2, the distribution of velocity field and density field in the shallow tank is more ideal, which is beneficial to material separation and transportation of suspended products. The critical separation particle size in different regions of the shallow tank is different, which decreases first and then increases with the increase of shallow tank height.

The research on the classification and grading of the development potential of urban type abandoned coal mining areas is helpful to withdraw from the decision of the development plan of the closed mining areas or promote the evaluation of a large number of urban type abandoned coal mining areas at the level of city, county, state or other types of areas. And it can also provide theoretical support for the classified management and overall planning of abandoned coal mining areas. Therefore, based on the ecological priority and regional balance concept as well as the principle of efficient development and utilization of resources, we propose a ranking criterion for abandoned coal mining areas that can deal with multi-dimensional constraints, and establish a classification and multi-level integrated evaluation method for abandoned coal mining areas development. And Muchengjian Coal Mine in Beijing, and Western Open-Pit Coal Mine in Fushun are as the cases to analysis which corrects feasibility of the method. Because this method is supported by the basic data of abandoned coal mining area and the relevant knowledge and experience of experts. It is necessary to further improve the ecological evaluation system of mine resources in production and strengthen the construction of resource database of urban type abandoned coal mining area, to realize the classification and classification research of abandoned coal mining area in urban areas at different research scales.

The manual inspection work of the coal mine belt transportation system is strong, especially the inspection of the belt conveyor with a large slope is easily affected by coal falling, flying rocks, etc., which is dangerous. This paper designs the intelligent sensing and control system of a suspended inspection robot in coal mines, studies the overall architecture of the system and the layout of various sensors, and focuses on the functional design of the inspection robot's image acquisition, voice recognition, environment perception and wireless communication modules. And parameter optimization. Carried out field industrial tests in coal mines, effectively verifying the performance of the robot intelligent sensing and control system, which can realize the functions of meter data recognition, knob status recognition, belt deviation recognition, flame recognition, sound detection, abnormal alarm, etc., with coal mine transportation Comprehensive perception and real-time monitoring capabilities of the system status underground, above ground, and smart phone. Using inspection robots to replace people can realize continuous inspection operations in harsh environments such as underground high temperature, dust, and low illumination, effectively avoiding problems such as missed inspections and false inspections.

In order to solve the problems of too many people, low efficiency, high labor intensity, low adaptability and potential safety hazards in the current underground trough auxiliary transportation of coal mine, through the research and development of mechanical structure, hydraulic system and control system, this paper realizes the trackless self movement, intelligent monitoring, video monitoring, remote control, automatic traction,coordinate with the working face and other functions. It has been successfully applied to the underground trough auxiliary transportation of a coal mine in Shanxi, reducing the number of equipment operators to 1, and the control accuracy to ±10mm, greatly reducing the labor intensity of workers, improving safety and work efficiency, and realizing the reduction of personnel and efficiency in the coal mine.

In order to clarify the research status and development trend of coal mine safety caused by human error, based on statistical analysis and bibliometrics, with the help of Citespace software, this paper analyzed 1490 Chinese literatures on coal mine workers from 2000 to 2019 in CNKI journal database, and summarized the existing research results from two aspects of management and individual miners. The results show that the core scientific research force in the field has initially formed from the perspective of human factors in China, and the research mainly focuses on the exploration of miners' unsafe behavior and unsafe psychological factors. It is found that the research focus and methods are gradually changing from behavioral theory and cognitive psychology to cognitive neurology. In the future, more advanced neurometric tools are expected to reveal the behavior mechanism of miners.

Aiming at the problems of regulatory duplication, information island and lack of trust mechanism in coal mine safety supervision and inspection, a multi-coordinated coal mine safety supervision model based on blockchain technology is proposed. Based on the decentrization characteristics of blockchain, the model effectively connects the supervision and inspection institutions, coal mining enterprises, coal miners and social organizations, so that any node can directly interact with the point-to-point information, and realizes the information sharing and co-management among the multi-subjects of supervision. Taking advantage of the characteristics of blockchain, such as open and transparent, traceable, and information can not be tampered with, a multi-collaborative coal mine safety supervision information platform based on blockchain technology is designed to ensure information authenticity, multi-party participation, intelligent supervision, and accurate accountability. This model innovates the way of coal mine safety supervision and inspection, explores the applicability and superiority of blockchain technology in coal mine safety supervision and supervision, and provides a new idea for the application of blockchain technology in coal mine supervision and other fields.