Abstract: In order to reasonably determine the mining method and process parameters of the working face in Binchang mining area, this paper studies the types and characteristics of typical disasters in the mining area on the basis of summarizing the resource conditions of Binchang mining area and field research on the production of many mines in the mining area. The interaction relationship of each disaster itself and the constraints and influences of disasters on mining activities are analyzed. The principles and methods for determining coal mining methods and face parameters under multiple disasters are proposed. The results show that the coal mining method in Binchang mining area should adopt top coal caving, and the coal caving height is restricted by the height of the overlying water blocking layer; the safety critical value of the fully mechanized caving face length is generally within 180m; the working surface propulsion speed should be 3.2~4.8m/d; the face advancement length is generally within 2.3km.

Abstract: In order to solve the problem of district ventilation and coal caching in south sixth mining area of Luan Yu-wu mine, the design fully considers aspects of technical economy, construction difficulty, ventilation, energy saving and other aspects. Three kinds of schemes were designed to compare the advantages and disadvantages of each scheme, and get the optimal scheme. The optimal program has not only realized the purpose of independent ventilation in the mining area, but also minimized the construction period, project cost and construction difficulty. It has certain reference significance for the coal mining bunker design of with similar partitioned ventilation.

In order to solve the problemthat the gas in the upper corner of the mining face of the U ventilation modewas easy to exceed the limit in the high gassy mine,based on the research method of numerical simulation and field test, the effect ofthree-dimensional gas drainage measures in gob on gas control in the upper corner of the mining face was studied. Taking 4312 fully mechanized mining face inChengzhuangcoal mine of Shanxi Jincheng Anthracite Mining Group Co., Ltdasthe research object,high performance gas extraction measures were selected through numerical simulation, and the three-dimensional gas extraction system of “high position bores+extraction pipe buriedin the link roadway of gob”in gob was established.In the numerical simulation of the system, the maximum value of gas concentrationin the upper corner of the mining face decreased to 0.42% numerical simulation. In the field application of the system, the value of gas concentrationin the upper corner of the mining facewas between 0.30 and 0.45%.The field application effect verified the correctness of the numerical simulation results. The research results showed that the three-dimensional efficient gas extraction system could solve the problemthat the gas in the upper corner of the mining face of the U ventilation method was easy to exceed the limit in the high gassy mine.

In order to study the early warning criteria for water inrush from coal mining, research and develop the water hazard monitoring and early warning technology, using mine hydrogeological analysis, mechanical analysis, geophysical exploration and other technical means, the mine floor water inrush symptoms were analyzed, a monitoring index system was established, water damage warning was studied, the layout method of water damage warning system was studied, and the qualitative warning criteria and quantitative early warning criteria for mine floor water inrush were put forward, the floor water damage warning system was developed. The real-time monitoring and inversion method of floor damage depth under mining influence was discussed. Finally, taking the 11603 working face of Xuchang Mine as an example, the water damage warning system was arranged, and the monitoring and early warning of water inrush from the floor was implemented. The research shows that the water damage warning system can monitor the coal seam floor warning indicators in real time, invert the mechanical deformation and damage of the rock mass, and and together with the early warning criteria, realize the monitoring and early warning of coal mine floor water inrush.

Based on the design of a steel structure with a length of 70m and a span of 45m，this paper discusses the three aspects of architectural design，structure design and foundation design of coal storage shed in Shanxi xiang ning.The architectural design introduces the features of the coal storage shed，the retaining wall and the wall enclosure，the lighting setting and roof drainage，safe evacuation and fire prevention；through the calculation and analysis of single truss steel frame，the specification of steel frame column and steel roof frame is determined，by setting roof truss support，inter-column support and wind column，the coal shed has formed a spatial integral structure；the foundation design reduces the difficulty of construction by adopting the treatment plan of pile foundation and socket，and avoids the water culvert in the field.The design of this coal shed will provide reference for similar projects.

There are serious problems such as asymmetric deformation and failure of surrounding rock and difficulty in supporting the roadway in the goaf when mining near the coal seam. Based on the project background of 20307 transportation roadway in gaojialang coal mine, Inner Mongolia, the asymmetric deformation and failure characteristics of roadway surrounding rocks are analyzed based on the field monitoring results. The roof on the side of coal pillar sinks heavily and the coal rib spalling is serious. The failure of bolt occurs at the shoulder Angle of roadway and is mainly caused by the tensile fracture of screw segment at the end of bolt and the shear failure at the free end. And asymmetric support technology of roadway is proposed. The side of the column is supported by round steel bolt. The stopper is not supported when the side wall is intact, and the fissures are developed and the gripping areas are supported by FRP bolts. Then, FLAC3D is used to simulate the supporting effect and field test is carried out in the 20307 haulage roadway. The results show that: During the mining period, the maximum subsidence of the roof is 34.6mm, and the displacement of the side side of the pillar is 19.6mm, and the displacement of the mining side is 17.3mm. The supporting effect is better when there is no roof fall and rib spalling

In order to solve the problem of floor heave in soft rock roadway with large section in deep mine, taking the 11302 working face air return of ChaHasu coal mine as the research object, firstly, the failure law of roadway floor heave was analyzed through field tests: There were zero displacement point and zero strain point at the bottom of roadway, the strata at the bottom of the roadway were divided into tensile strain rise zone, tensile strain drop zone and compressive strain drop zone from the surface downward, the distance between zero stress point and zero displacement point from the floor of the roadway was 1.32M and 1.68m respectively. Secondly, the influence of surrounding rock strength, surrounding rock stress and support form on floor heave of the roadway is analyzed, and on the basis of the above, the control technology of changing floor coal pillar size, optimizing roadway support parameters and local grouting is proposed. Finally, the engineering practice shows that the floor heave of roadway has been effectively controlled by adopting corresponding technical measures, and has good technical and economic benefits.

By means of similar simulation experiment, field measurement and theoretical calculation, the parameters of high level gas drainage borehole in 11B801 fully mechanized top coal caving face of Tahe coal mine are studied. The results show that there is a "large and small period" pressure phenomenon in the recovery process of 11B801 fully mechanized caving face. The small cycle average pressure step distance is about 15.5m, and the large period average pressure step distance is about 65.0m. The "large and small period" is closely related to the development of gas migration channel and the development of the gathering place. Based on the "big and small cycle", the effective length of the high borehole is determined, and the parameters such as depth, elevation and stubble distance are calculated. Through the analysis of the monitoring data of roof pressure and drilling extraction concentration during the working face recovery, the reasonableness of calculating the drilling parameters with the backstepping of the step distance of the "large and small period" was verified. The gas control of the upper corner of the 11B801 fully mechanized caving face was below 0.47%, which ensured the safe and efficient production of the 11B801 fully mechanized caving face.

In order to improve the gas drainage efficiency of beveled boreholes in the high-speed +450m horizontal inlet wing of Gaohe Coal Mine, ensure the safety and rapid excavation of +450m horizontal north wing into the wind lane, and develop a GF suitable for the characteristics of No. 3 coal in Gaohe Coal Mine. -100 type ultra-high pressure hydraulic slotted joint device, researches on the technical feasibility and implementation scheme of integrated high-pressure water drilling and slotting, and preliminary inspection of slotting effect. The results show that the second increase in the penetration of the hydraulic slats directly on the foundation of the dredging drilled hole can increase the extraction radius of the slotted hole to 2.4m and reduce the construction volume by nearly 50%. Gas flow can be increased 1.8 to 3.6 times. Hydraulic kerf technology can effectively improve the gas drainage efficiency of low permeability coal seams and is worthy of promotion.

At present, shotcrete is widely used in enginnering. However there are few application in shell storage bunker using inflated forms. Combined with the example of shell storage bunker using inflated forms in Xuzhou Datun thermal power plant in Jiangsu province, the material construction process and precautions for injection of sprayed concrete are introduced in detail. In addition,45 concrete test blocks were selected along the height and thickness of the structural layer of the main structure. Practice has proved that the maximum compressive strength value is 56.4Mpa, the minimum value is 30.7Mpa, and the average value is 40.5Mpa,which can meet the specification design requirements. It is show that the application of sprayed concrete in the construction can achieve significant economic benefits under the premise of ensuring quality. And reduce the environmental pollution caused by the storage of bulk mineral materials such as coal. It will be used as a reference for similar projects in the future significance.

In order to study the rationality of the layout of the roadway in the working face during upstream mining, this paper takes the upward mining of the 6202E working face of the Zhai Town coal mine as the background of the engineering research. Through theoretical analysis and on-site pressure observation, the influence area and degree of the upper working face on the mining of the lower working face are obtained. The research shows that, The closer to the middle of the goaf area, the greater the degree of rock breaking, and at the boundary of the goaf area, the lower the degree of rock breaking due to coal pillar support. When the transport slot of the 6202E working surface is placed in the 20m coal column area outside the 6403E face slot, the influence area within the upper boundary is 17.1 m, and the influence area outside the transport channel boundary is 17m, which can effectively avoid the stress impact; The track along the groove is placed at 2m in the emptying area of the 6403E track lane, the internal impact area is 15.3 m, and the external impact area is 18.4 m. The shelf support can be used to control the proximity of the surrounding rock and the near-velocity. This study plays an important role in the rational layout of the roadway and its impact on the analysis of the area and the improvement of the support effect of roadway.

In view of the great mining height of the Shihe mine, the mining pressure at the end of the mining stage appeared severely, easily leading to the occurrence of the film gang, the top of the situation, affecting the smooth withdrawal of the hydraulic support further. Using new inorganic grouting material to advance pre-reinforcement of coal body within 40 meters from the main draw-off passage. In addition,a small amount of organic grouting material was refilled in local areas of the mining side of the withdrawal channel. The application of the joint grouting reinforcement technology effectively solved the problems such as chipping and leaking at the final mining stage of large mining face, and realized the safe and rapid penetration of the working face and the main pull-out channel. By comparing the final mining time and the grouting cost at the end, the joint grouting reinforcement achieved better efficiency and benefit than simply using organic material grouting reinforcement.

In view of the current situation and existing problems of hard and stable roof in coal mine, hydraulic fracturing technology is introduced. The technique is closed by a cross expansive packer and fracturing section is carried out by high pressure water, fracturing the rock mass in different positions of the roof and forming multiple cracks, and finally forming a crack network. In order to weaken the roof, with the advance of the working face, the roof lamination, sub collapse, the initial pressure strength of the old roof are weakened, and the safety of the working face is ensured. The crack growth can be seen from the construction site, and the opening pressure and expansion pressure of cracks in different fracturing sections can be directly read through the pressure curve.

According to the requirement of the belt conveyor for the compacting force of the sweeper, a cleaning device which can realize the constant pressure is designed, and its working principle and characteristics are introduced. The hydraulic system controlled by the electro-hydraulic proportion is used by the device. The cleaner can realize the constant pressing force, and adjust the pressing force. With the practice,it is used to reduce the labor intensity of the workers.

In order to research the influence of the width-height ratio to surface displacement, shear bearing, failure mode of rectangular roadway, the research method of theoretical analysis, numerical simulation and field application were used to study the surrounding stability of rectangular roadway with different width-height ratio. The results show that when the width of the roadway is larger than the height, the area of shear failure of the roof and the displacement of the two sides are both small in condition of horizontal stress is the maximum horizontal principal stress. When the horizontal stress is greater than the self-weight stress, the influence of the horizontal stress on the roof is more intense than that on the two sides. The roof is the area where the shear damage is the most serious. When the width of the roadway is larger than the height, the area where the shear damage occurs on the roof is smaller, the displacement of the two sides is smaller, and a larger ratio of width to height is beneficial to the whole surrounding rock stable. Based on the engineering practice with 1.76 width-height ratio of Shanqu Coalmine, the maximum roof deformation is 134 mm and the maximum relative movement of two sides is 195 mm. The controlling effect of surrounding is well.

In order to further study the interaction relationship between the concrete filled steel tube scaffold and the surrounding rock, this paper records the changes of the stress, deformation and failure of the roadway with the change of the external load by the means of similar physical model, and studies the law of the process. The experiment was first used to simulate the concrete filled steel tube scaffold filled with cement mortar slurry in the aluminum tube, which greatly reduced the relationship between the steel tube and the core concrete. The test shows that, first of all, the support of the concrete filled steel tube support is a passive closed type support form, and the displacement is produced at the first place, and the ratio of the vector span ratio of the 1/4 arc arch decreases and the load and deformation ability of the surrounding rock is reduced. When the displacement occurs after the displacement, the ratio of the 1/4 arc arch is increased. The load and deformability of the surrounding rock increase. The displacement of the first place usually occurs in the direction of the pressure of the weak rock and the surrounding rock, or the construction problem, and does not guarantee the complete fitting of the concrete filled steel tube support and the surrounding rock. Furthermore, the radial stress of the concrete filled steel tube is passively provided by the concrete filled steel tube, which greatly improves the ability of the surrounding rock to bear the load. It provides a theoretical basis for further study of the combined support and reasonable support section of concrete filled steel tube.

In order to study the chemical characteristics and control factors of groundwater in suntuan goldfield, 31 groups of water samples in suntuan goldfield are successively collected, and the chemical characteristics of groundwater in suntuan goldfield are systematically analyzed by means of mathematical statistics, Piper's three-line diagram, correlation analysis, Gibbs model and ion proportional coefficient and other methods. The results show that: PH 8.4 on average, each aquifer in the study area water quality is weak alkaline, cation is given priority to with K++Na+ in each aquifer, anion SO42- and HCO3- primarily, TDS with an average of 976.77 mg/L, 7~8、10 coal and coal aquifer water quality type of HCO3-Na+K type and HCO3·CL-Na+K type, the water quality of taiyuan group limestone aquifer types for HCO3·CL-Na+K·Mg, the ordovician aquifer water quality type of SO4·HCO3·CL-Na+K·Ca·Mg, Water samples in Gibbs figure and principal component analysis showed that the distribution in each aquifer of ion controlled by rock weathering dissolution and human activities on water chemistry affect smaller, than in the aquifer HCO3- ,Na+ and K+ mainly from potassium feldspar, sodium feldspar dissolution of silicate minerals, such as Ca2+ and Mg2+ mainly controlled by the carbonate and sulfate minerals.

The gas monitoring system has complex structure, random parameter changes and strong coupling and lag between parameters. Traditional control methods are difficult to handle and control. This set of intelligent control algorithm using fuzzy theory, the simulation of human thinking mode, the fuzzy control strategy into control algorithm of PLC controller to implement the control after several adjustment parameters, the intelligent control algorithm is better than traditional PID control effect is much better.

In order to ensure the effective control and utilization of the natural wind pressure in deep mines, the field measurement method was adopted. Taking the mining area of Tengdongshengjian Coal Mine as an example, the variation law of natural wind pressure and the phenomenon of air leakage in the goaf due to its change were carried out the study. The research shows that the natural variation of natural wind pressure in deep horizontal mines is like a sinusoidal curve, and the change of natural wind pressure leads to the regular change of the trend of the inlet and outlet winds in the goaf. When the natural wind pressure is reduced, the gap between the inner and outer pressures of the closed area of the goaf is increased, the air leakage trend is obvious, and the air volume is increased. If the trend of air leakage into the air in the confined area is the incoming air, the air intake trend in the airtight area is weakened or even reversed. When the natural wind pressure increases, the gap between the inner and outer pressures of the closed area of the goaf is reduced, the wind entering trend is obvious, and the air intake is increased. If the air leakage trend in the closed area of the goaf is air leakage, the air leakage trend in the airtight area is weakened, and even becomes the air inlet.

Monorail crane has obvious performance advantages in underground coal mine operations. In order to design an advanced support system with high flexibility and fast response, based on the principle of monorail crane operation, the transportation function is weakened, and a working platform is added to realize the function of supporting the anchoring of the excavation； Hydraulic system for supporting is designed; Supporting principle is introduced; AMESim, a hydraulic modeling simulation software, is used to establish a simplified hydraulic circuit. The main parameters are set according to the actual working conditions; the hydraulic pressure value of the hydraulic cylinder and the displacement change curve are obtained. The curve characteristics are analyzed and the hydraulic system’s feasibility is verified.

The working principle of the full hydraulic brake system is briefly introduced. In view of the frequent problems of accumulator filling in the use of a vehicle driven by a quantitative pump, the HCD model of the brake accumulator filling system is established by using the AMESIM policy platform and the layout of the pipeline in the field. The outlet pressure of the charging value and the inlet pressure of the accumulator are simulated. It is concluded that the pressure loss in the pipeline leads to the actual pressure of the accumulator less than the upper limit pressure of the charging valve, resulting in the shortage of high pressure oil in the accumulator, which causes the frequent phenomenon of liquid filling. At the same time, a hand-held pressure flow tester is used to test the pressure of the charging valve at the scene, and the conclusion is similar to that of the simulation. Through the method of shortening the length of the pipeline and increasing the diameter of the pipeline, the layout of the accumulator and the filling valve is optimized, and the high pressure oil capacity stored in the accumulator can meet the design requirements, and the problem of the frequent filling of the vehicle is solved.

Abstract：Aiming at the large impact of coal mine underground transportation equipment, low operating efficiency and serious waste of power, this paper designs a mine high-voltage inverter based on three-level slip vector control. The inverter adopts 12-pulse rectification circuit and diode clamped inverter circuit. The inverter voltage waveform is modulated by the carrier in-phase stacking, and the vector control scheme based on the slip frequency is selected. The speed control performance of the motor is analyzed by constructing the Simulink system model of high-voltage motor variable frequency speed regulation. The results show that the motor can respond quickly to load changes and reach a stable state, and the system has high robustness.

The main factors affecting the permeability of coal are temperature, hydrostatic pressure and pore pressure, The three parameters of this paper are factors, and the permeability of coal is taken as the research index. Based on the orthogonal test, the permeability of coal under different conditions is tested. The regression analysis is carried out and the distribution of porosity under different pore pressures is studied. Research findings show, The effect of hydrostatic pressure on the permeability of coal is the most remarkable, followed by pore pressure and temperature, and permeability is significantly related to the three parameters; When the pore pressure is greater than 2MPa, the pore pressure has no obvious influence on the permeability of the coal; When the coal temperature is 20 degrees, the hydrostatic pressure is 11MPa and the pore pressure is 3MPa, the permeability of the coal body is the largest, reaching 0.3617mD.

Coal is the main energy sources in our country，and village relocation is the most important way to release coal resources under the village. In fact, the relocation process of coal villages is a game process among coal enterprises, local governments and farmers. In this paper, the dynamic game model of local government, coal enterprise and Peasant Participating in the selection in turn is established by using the method of dynamic game with complete information. The dynamic game process in both planning and implementing stage of coal relocation is analyzed and solved.The strategic choice and main factors of local government, coal enterprise in the process of relocating coal villages is obtained, and the key points in the process the coal village relocation are proposed for all the participants. It is very useful for the mechanism research and the mode choice for the coal village relocation.

When the traditional heavy-medium cyclone works, due to the existence of a constantly oscillating air column inside, which not only affects the sorting accuracy but also consumes a lot of energy, its working principle determines the inevitable existence of these technical problems. Therefore, it fundamentally limits the development of cyclone technology to low energy consumption and high efficiency. The development of existing cyclones is almost at a standstill, and the studying of a new type cyclone is imperative. In this paper, the pressure field, the density distribution, the three-dimensional velocity field and the flow trajectory of a new two-product heavy medium cyclone are numerically simulated by fluent software, and the possibility of realizing the mineral separation by this new type of heavy medium cyclone is theoretically analyzed. The results show that the details of the fluid flow given by the CFD software, such as the pressure field, velocity field, and density distribution, conform to the distribution law of the flow field.Subsequent experiments have also proved that the new type of heavy medium cyclone can achieve effective separation of minerals and weaken the adverse effects of air columns and reduce energy consumption.

The optimum gasification process of lignite coal in Liupanshui of Guizhou, was studied using activated carbon as the auxiliary heating medium and steam as the gasification agent. Under the auxiliary heating of activated carbon, the gasification ratio of lignite coal increased significantly and the purity of coal gas was higher. The effects of the total amount of lignite coal and activated carbon, the flow rate of gasification agent, the gasification reaction time and the microwave power on energy consumption were investigated by single factor experiment and orthogonal experiment. The results showed that under the conditions of lignite coal and activated carbon (mass ratio 1:3) of 8.0 g, gasification flux of 34.54 g/h, microwave power of 540 W and gasification time of 20 s, the lignite coal gasification ratio was 90.5 %, and the energy consumption of microwave was only 5966.8508 J/g. The composition of H2, CO and CH4 in gas is 87.32 %, and activated carbon has good effect.

The effect of the high density fine coal on coal flotation behavior at different pH values is studied by micro-flotation,particle size analysis and surface Zeta potential of coal particles. The result show that The flotation yield of the micro-flotation test under acidic condition is the lowest,and it has the highest yield in under neutral condition. The decrease of the pH value of the ore slurry will cause the dispersion of the particles to become worse,the agglomeration phenomenon between the particles is obvious, and the high density fine coal is easier to cover the surface of the low density coal. In the neutral environment, the surfaces of the low density coal and the fine mud are negatively charged. When the pH is lower than the isoelectric point of the low density coal, the zeta potential of the low density coal surface is negative, and there is an electrostatic adsorption between the low density coal and the fine coal.

The paper employs public policy research method to analyze China’s policy implementation mechanism on reducing scattered coal consumption, and put emphasis on policy drawbacks. The results show, China's scattered coal policy is driven mainly by environmental protection actions, is implemented mainly by target responsibility system, is featured by administrative means. Despite obvious achievements, current scattered coal policy faces many challenges in the long run, including: weak scientific basis for policy formulation caused by unclear object and scope of scattered coal control, weak cross-department coordination ability, ever-increasing local financial pressure, and insufficient market mechanism and so on. Aiming to addressing these challenges, the paper puts forward corresponding countermeasures from the aspects of scientific basis, department coordination, market mechanism, and standard system.

Because of gas exceeding the limit, the problem of frequent shutdown and low operating rate of shearer often appears during the period of automation mining in thin seam with high gas. Based on the field measurements and theoretical analysis about gas concentration in the panel, the influence mechanism between cutting speed and gas concentration is explored. Upper corner is the main gas monitoring point with shearer position during automation mining. What’s more, there is a positive correlation between gas concentration in the upper corner and cutting speed basically. However, gas concentration in the upper corner is negatively correlated with the distance between the shearer and upper corner. Based on this, self-adaptive adjustment technology of shearer cutting speed base on monitoring feedback of methane concentration was proposed. As a result of industrial field tests, the probability of gas concentration exceeding the limit was decresed using the technology. It can provide technical reference for automation mining in thin seam with high gas.

In order to slove the problem of explosion-proof diesel engine trackless rubber wheel vehicle using in long-distance inclined roadway coal mine will also cause exhibiting serious in severe exceeded emissions of diesel exhaust gas and increased fuel consumption when running uphill and the problem of the downhill brake fails, there is a safety hazard. Discusses the design features and key technologies of the explosion-proof diesel trackless rubber vehicle that meets the large carrying capacity of the long-distance inclined roadway in the Xiaojiawa and Gaotouyao coal mines from reduction of volume load ratio，improve adhesion，optimal design of transmission system，finite slip differential and design of brake system. The use indicates that the vehicle has a large carrying capacity, a high climbing speed, as well as a safe and reliable downhill braking system.

In order to meet the needs of safe and efficient tunneling in coal mine, ZDY2-1000LF (T) drilling rig for water exploration and drainage has been developed. The design idea, structure and hydraulic system of drilling rig were introduced. The test shows that the structure design of the drilling rig is reasonable and the technical indexes of each test meet the requirements of design and industry standards, which can improve the construction efficiency of hole for water exploration and drainage in coal mine roadway heading face.

Taking the listed companies in the coal industry from 2010 to 2016 as the research samples, the regression analysis method was used to conduct an empirical study on the relationship between corporate social responsibility and financial performance. Moreover, the company is divided into political connection enterprises and non-political connection enterprises to explore the impact of political connections on the relationship between corporate social responsibility and financial performance. The results show that: the level of corporate social responsibility has a positive effect on the financial performance; the financial performance of the enterprise has a positive effect on the level of social responsibility; the positive interaction between social responsibility and financial performance of political connection enterprises is stronger than that of non-political connection enterprises.

Is aimed at solving the problem that merging of coal mine post standard operating procedure and risk prccontrol management system of safety in coal mine. According to summarizing both of the two’s development course, analyzing the intension and characteristics of them,researching the relationship between them , we point out that the coal mine post standard operating procedure is the effective means to realizing the risk prccontrol management system of safety in coal in coal mine, they exist side by side and play a part together. Then we point out the merging foundations, principles and methods according to the relationship between them. The research findings of this paper provides a reference that merging of coal mine post standard operating procedure and risk prccontrol management system of safety in coal mine.

From the perspective of energy-economy-environment research, the dynamic CGE model was used to study the impact of coal de-capacity on the development of various industries and the environment in Shaanxi Province from 2020 to 2035. The results show that although coal de-capacity will curb fiscal revenue and economic aggregate, it will promote the welfare of residents and the increase of residents' income. In addition, coal de-capacity has a positive effect on atmospheric pollutants and greenhouse gas emission reductions in Shaanxi.