Mine solid waste zero discharge treatment equipment

Abstract

The invention belongs to the technical field of mine solid waste treatment, and particularly relates to mine solid waste zero discharge treatment equipment which comprises a crushing bin, and a crushing mechanism and a screening mechanism are arranged in the crushing bin from top to bottom; the crushing mechanism comprises two symmetrically-arranged first extrusion blocks, the two first extrusion blocks are close to the two opposite inner side walls of the crushing bin correspondingly, and the distance between the two first extrusion blocks is gradually increased from the middle to the upper end and the lower end. A second extrusion block is arranged between the two first extrusion blocks, is positioned at the lower parts of the first extrusion blocks and is matched with the first extrusion blocks; the two first extrusion blocks and the second extrusion block are in transmission connection with a power mechanism, and the power mechanism drives the second extrusion block to reciprocate up and down while driving the two first extrusion blocks to move relatively, so that the mine solid waste is crushed. According to the mine solid waste crushing device, through cooperation of the first extrusion block and the second extrusion block, the stroke of a single extrusion block is shortened, and then the crushing efficiency of mine solid waste is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of mine solid waste treatment, and in particular relates to a zero-emission treatment device for mine solid waste. Background Art

[0002] Mining solid waste refers to the waste discharged from mines and mining sites during production operations such as mining and washing, mainly including mining waste rock and tailings. The stacking of tailings and waste rock not only occupies a large amount of surface resources, but also seriously pollutes water sources and soil. If the stacked tailings and waste rock are not managed properly, major accidents may occur, seriously threatening personnel safety. Therefore, zero-emission treatment equipment is needed to treat mining solid waste (i.e. tailings and waste rock).

[0003] Although the prior art proposes a solution for treating mining solid waste by crushing, the crushing efficiency of the existing mining solid waste treatment devices is not ideal. Therefore, a zero-emission treatment device for mining solid waste is proposed. Summary of the invention

[0004] The purpose of the present invention is to provide a zero-emission treatment device for mining solid waste to solve the above problems.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] A zero-emission processing device for mining solid waste comprises: a crushing bin, in which a crushing mechanism and a screening mechanism are arranged from top to bottom;

[0007] The crushing mechanism comprises two symmetrically arranged first extrusion blocks, the two first extrusion blocks are respectively close to two opposite inner side walls of the crushing bin, and the distance between the two first extrusion blocks is gradually set from the middle to the upper and lower ends;

[0008] A second extrusion block is arranged between the two first extrusion blocks, and the second extrusion block is located at the lower part of the first extrusion block and is adapted to the first extrusion block;

[0009] The two first extrusion blocks are connected to the power mechanism through a transmission mechanism, and the second extrusion block is connected to the power mechanism. The power mechanism drives the two first extrusion blocks to move relative to each other and drives the second extrusion block to reciprocate up and down to crush the solid waste in the mine.

[0010] In a zero-emission treatment device for mining solid waste of the present invention, the second extrusion block is arranged in a triangle shape and one of the pointed ends is arranged upward, both ends of the second extrusion block are fixedly connected to limiting sliders, and the two limiting sliders are slidably connected in the limiting slide grooves, and the limiting slide grooves are vertically opened on the two opposite inner walls of the crushing bin, and the bottom of the second extrusion block is provided with an installation cavity, and a plurality of articulated seats are fixedly connected in the installation cavity, and the plurality of articulated seats are arranged at equal intervals along the length direction of the second extrusion block, and the plurality of articulated seats are all rotatably connected to the crankshaft, and the crankshaft is rotatably connected in the crushing bin, and both ends of the crankshaft extend out of the crushing bin and are transmission-connected to the power mechanism.

[0011] In a zero-emission treatment device for mining solid waste of the present invention, the transmission mechanism includes a support frame fixedly connected to the opposite sides of the crushing bin, and two gears are rotatably connected to the support frame, one of the gears is transmission-connected to the power mechanism, and the two gears are meshingly arranged, and a short shaft is fixedly connected to the side of the gear close to the crushing bin, and the short shaft is eccentrically arranged to the gear, and one end of the third connecting rod is rotatably connected to the short shaft, and the other end of the third connecting rod is rotatably connected to a driving slider, and the driving slider is slidably connected in a through groove, and the through groove is horizontally opened on the side wall of the crushing bin, and the driving slider extends into the crushing bin and is fixedly connected to the first extrusion block.

[0012] In a zero-emission treatment device for mining solid waste of the present invention, the power mechanism includes a driving motor fixedly connected to the side wall of the crushing bin, the output shaft of the driving motor is coaxially fixedly connected to the input shaft of the reducer, the reducer is fixedly connected to the side wall of the crushing bin, both ends of the output shaft of the reducer are coaxially fixedly connected to the second rotating shaft, the second rotating shaft is rotatably connected to the outer wall of the crushing bin through an axle seat, the end of the second rotating shaft away from the reducer is coaxially fixedly connected to a double sprocket, the double sprocket is respectively connected to the first sprocket and the second sprocket through two chains, the second sprocket is coaxially fixed to the gear, and the first sprocket is coaxially fixed to the end of the crankshaft.

[0013] In a zero-emission treatment device for mining solid waste of the present invention, the screening mechanism includes a screen, which is obliquely arranged in the crushing bin, the high end of the screen is hinged to the inner wall of the crushing bin, the low end of the screen is hinged to one end of a second connecting rod, the other end of the second connecting rod is hinged to one end of a first connecting rod, the other end of the first connecting rod is fixedly connected to the output shaft of the vibration motor, the vibration motor is fixedly connected to the inner wall of the crushing bin through a fixed block, a limit block is fixedly connected to the fixed block, and the limit block is arranged in contact with the screen.

[0014] In a zero-emission treatment device for mining solid waste of the present invention, a feed discharge port is provided at the bottom end of the crushing bin, and the feed discharge port is arranged in an inverted cone shape. The top end of the crushing bin is connected to a feed hopper, and a plurality of legs are fixedly connected to the bottom end of the crushing bin at equal intervals in the circumferential direction, and the legs are arranged vertically.

[0015] In a zero-emission treatment device for mining solid waste of the present invention, a plurality of water injection holes are circumferentially evenly arranged on the outer wall of the crushing bin, and the plurality of water injection holes are located at the lower part of the crushing bin. A water injection pipe is circumferentially fixedly connected to the outer wall of the crushing bin, and the water injection pipe is connected to the water injection holes, and the water injection pipe is connected to an external water supply device.

[0016] In a zero-emission treatment equipment for mining solid waste of the present invention, a lifting bucket is provided on one side of the crushing bin, and a return material discharge port is connected to one side of the lifting bucket. The return material discharge port is inclined downward at one end away from the lifting bucket and is connected to the feed hopper. The lifting bucket is connected to the return material feed port, and the return material feed port is opened on the crushing bin. The return material feed port is close to the lower end of the screen, and a lifting mechanism is provided in the lifting bucket.

[0017] In a zero-emission treatment device for mining solid waste of the present invention, the lifting mechanism comprises two first rotating shafts rotatably connected to the upper and lower ends of the lifting bucket, the two first rotating shafts are arranged in parallel, a conveyor belt is sleeved on the two first rotating shafts, a plurality of conveyor plates are fixedly connected to the conveyor belt at equal intervals in the circumferential direction, the conveyor plate is arranged downwardly inclined at one end close to the crushing bin, and the conveyor plate is in sliding contact with the inner wall of the lifting bucket;

[0018] One of the first rotating shafts passes through the lifting bucket and is coaxially fixedly connected with an output shaft of a lifting motor, and the lifting motor is fixedly connected to the lifting bucket.

[0019] Compared with the prior art, the present invention has the following advantages and technical effects:

[0020] When the present invention is working, firstly, the mine solid waste is put into the crushing bin, and the mine solid waste first falls between the two first extrusion blocks and the second extrusion block. At this time, the power mechanism drives the two first extrusion blocks to move relative to each other and drives the second extrusion block to reciprocate up and down to crush the mine solid waste. The crushed mine solid waste is screened, and the crushed stones that meet the specifications fall into the screening mechanism, and the mine solid waste that does not meet the specifications flows back to the top of the crushing mechanism to be crushed again.

[0021] In the present invention, the two first extrusion blocks cooperate with the second extrusion block, thereby shortening the stroke of a single extrusion block and improving the crushing efficiency of mine solid waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor:

[0023] Figure 1 It is a front view of the present invention;

[0024] Figure 2 It is a left side view of the present invention;

[0025] Figure 3 It is a schematic diagram of the internal structure of the present invention;

[0026] Figure 4 for Figure 3 A magnified view of the part at A in the middle;

[0027] Figure 5 It is a structural schematic diagram of the second extrusion block in the present invention;

[0028] Figure 6 It is a transmission schematic diagram of the gear and the driving slider in the present invention;

[0029] Among them, 1. outrigger; 2. crushing bin; 3. reducer; 4. driving motor; 5. double sprocket; 6. first sprocket; 7. second sprocket; 8. feed hopper; 9. lifting bucket; 10. lifting motor; 11. water injection pipe; 12. discharge port; 13. return material discharge port; 14. water injection hole; 15. first extrusion block; 16. first crushing tooth; 17. second extrusion block; 18. second crushing tooth; 19. crankshaft; 20. articulated seat; 21. conveyor belt; 22. conveyor plate; 23. return material feed port; 24. first rotating shaft; 25. screen; 26. limit block; 27. vibration motor; 28. first connecting rod; 29. ​​second connecting rod; 30. second rotating shaft; 31. gear; 32. short shaft; 33. third connecting rod; 34. driving slider; 35. support frame. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] Mining solid waste, also known as mining waste, refers to waste rock and tailings generated during the mining and washing of ore. In the process of ore mining, the surrounding rock needs to be stripped and the waste rock needs to be discharged. The mined ore also needs to be washed to improve the grade and discharge the tailings. Harm to the environment: large amounts of mining waste are stored, polluting the land, or causing disasters such as landslides and mudslides; debris and tailings formed by weathering of waste rock can be washed into the water body by water, dissolved and infiltrated into groundwater, and blown into the atmosphere by wind; some of the waste contains highly toxic elements or radioactive elements such as arsenic and cadmium, which directly endanger human health. In order to eliminate pollution, mining waste should be harmlessly treated and comprehensive utilization of waste rock and tailings should be carried out.

[0033] Source: Various metal and non-metallic ores are composed of surrounding rocks. In the process of mining, the surrounding rocks must be stripped and the waste rocks must be discharged. The mined ore usually needs to be washed to improve the grade, so tailings are discharged. When mining 1 ton of coal, about 200 kilograms of coal gangue are generally discharged. Various metal ores, after extracting metals, a large amount of mining solid waste is discarded. With the development of industrial production, the general trend is that rich mines are decreasing, and metal and non-metal production uses more and more lean mines. For example, in the early 20th century, the copper content of mined copper mines was generally 3%, and the copper content of later mined copper mines was generally about 1%. This led to a rapid increase in the amount of mining waste, and about 30 billion mining wastes are discharged worldwide each year. A large amount of mining waste causes serious environmental pollution.

[0034] Types: Mining solid waste includes strippings and waste rock (including coal gangue) generated during mining, as well as tailings discharged during the mineral processing process. Mining solid waste is generated in large quantities and is relatively complex to handle, making it one of the difficult problems in environmental protection.

[0035] The surrounding rocks and interlayers of the ore bodies that have no industrial value produced during the mining process are collectively referred to as mine waste rock: for pit mining, it is the rock that is separated during tunnel excavation and blasting in the mining area and cannot be used as ore; for open-pit mining, it is the surrounding rocks or interlayers on the surface of the ore deposit that are stripped off. Usually, pit mining (underground mining) will produce 2-3 tons of waste rock for every ton of ore mined, and open-pit mining will strip 6-8 tons of waste rock for every ton of ore mined. In non-ferrous metal mines, a large or medium-sized pit mine generally produces 2X10 tons of waste rock in infrastructure projects. 5 ~5X10 5 m 3 , 6X10 will also be produced during production 4 ~15X10 4 m 3 Waste rock. The amount of waste rock stripped from the construction of an open-pit mine ranges from hundreds of thousands of cubic meters to tens of millions of cubic meters.

[0036] After the target concentrate is selected in the ore dressing process, the remaining slag containing very little target metal is called tailings (usually called tailings). Usually, 0.5 to 0.95 tons of tailings are produced for every ton of ore processed. A large amount of mining waste causes serious environmental pollution.

[0037] Hazards: Large amounts of solid waste from mining are stored, polluting the land or causing disasters such as landslides and mud-rock flows. Debris and tailings formed by weathering of waste rock are washed into water bodies, dissolved and seeped into groundwater, or blown into the atmosphere by wind, polluting the environment with water and air as the medium. Some of these wastes contain highly toxic elements such as arsenic and cadmium, and some contain radioactive elements, all of which are harmful to human health.

[0038] Mine waste rock and tailings not only occupy a large amount of land, but also directly pollute the environment and threaten the safety of people's lives and property. A medium-sized tailings dam generally occupies hundreds of acres or more, and the investment cost required to build a tailings dam is also very staggering.

[0039] Tailings have fine particles, small weight, large surface area, and are easy to flow away when encountering water and fly when encountering wind. Therefore, tailings are a potential hazard to air, water, farmland and villages. In 1964, the Balke tailings dam in northern Wales, UK was washed away by floods. After the tailings were lost, a large area of ​​fertile grassland was destroyed, with a coverage thickness of 0.5m, causing serious soil pollution and large areas of pasture death. In September 1970, tailings from the tailings dam of the Mufulira copper mine in Zambia poured into the mine, killing 89 underground workers and flooding the Peterson mining area.

[0040] Treatment methods: 1. Stabilization treatment of waste rock piles and tailings fields: To prevent waste rock and tailings from being washed away by water and blown by wind and spreading pollution, the following stabilization methods can be used:

[0041] Physical method: Spray water on fine tailings, cover with lime and soil, and cover the top with bark and straw. This method is most effective for copper tailings. Windbreaks can also be planted in the upwind direction and covered with a mixture of limestone powder and sodium silicate.

[0042] Plant method: Plant permanent plants on waste rock or tailings dumps. Experiments have shown that calcium tailings of lead and zinc mines are suitable for growing cowgrass, and acidic tailings of lead and zinc mines are suitable for growing reed grass. The UK has also found that a kind of grass grows naturally in mining areas, which has the ability to resist high metal content and low nutrients, and can play a good stabilizing and protective role.

[0043] Chemical method: Use chemical reagents (cement, lime, sodium silicate, etc.) that can combine with tailings to form a hard shell on the surface of the tailings. This method is relatively expensive, and some tailings are often interlaced with sand layers, making it difficult to select chemical reagents. The chemical method can be combined with the plant method to treat tailings. After sowing plant seeds in the tailings field, a small amount of chemicals is applied to prevent the scattered sand in the tailings field from flying and to maintain moisture to facilitate plant growth. Colorado, Michigan, Missouri, Nevada and other states in the United States have effectively adopted this method.

[0044] 2. Land restoration method: fill the land damaged by mining with waste rock and tailings, level it after the settlement is stable, cover it with soil, plant plants, or build houses. In some areas of China, fly ash storage sites, iron and aluminum mine waste rock sites, etc. have completed land restoration, planted plants, and developed production.

[0045] Comprehensive utilization: Waste rock and tailings are multi-component minerals. Comprehensive utilization can reduce the land used for storage, provide valuable resources, and is the most effective pollution control measure.

[0046] Some metal mines have associated minerals that have recycling value. Most waste rock and tailings can be used to make building materials or for agriculture. The Mascotte zinc mine in Tennessee, the United States, contains 4% zinc and 95% limestone. After enrichment, the ore is used to smelt zinc, the tailings are used as agricultural lime, and the waste rock is used as road construction materials and concrete engineering aggregates. Almost all of the ore is utilized [3].

[0047] Some waste rocks and tailings contain metals, which can be recycled. For example, vanadium and titanium can be recovered after ironmaking from vanadium-titanium magnetite. Many lead, zinc, copper and nickel ores are symbiotic, and comprehensive smelting processes should be adopted to prevent some of the non-ferrous metal minerals from becoming waste.

[0048] Coal gangue can be used to extract iron and other metals. Since the technology for comprehensive recovery of metals or materials from waste rock and tailings is not yet mature, the product cost is relatively high.

[0049] The prior art discloses a zero-emission treatment device for mining solid waste. The zero-emission treatment device for mining solid waste is provided with a powerful motor body, a first rotating rod, a first crushing roller and a first gear to perform preliminary crushing on mining solid waste, and a rotating motor body, a second rotating rod, a second crushing roller and a second gear to perform secondary crushing on the preliminary crushed mining solid waste to ensure that all mining solid waste is crushed, a water tank, a self-priming water pump body, a conveying pipe, a water spray plate and a plurality of water spray heads are provided to facilitate washing of the crushed mining solid waste, and a filter plate is provided to filter and export the mining solid waste remaining after washing, and the above steps are repeated until the mining solid waste is completely crushed into powder for washing, thereby realizing zero-emission treatment of mining solid waste.

[0050] A zero-emission treatment device for solid waste in mines, comprising a base, a supporting leg installed on the top of one side of the base, a crushing box arranged on the top of the supporting leg, a feeding hopper installed on the top of the crushing box, a powerful motor body arranged on the front of one side of the crushing box, an output shaft of the powerful motor body fixedly connected to a first rotating rod through a coupling, one end of the first rotating rod passes through the crushing box and a first crushing roller is sleeved on the outer wall, a rotating motor body is arranged on one side of the crushing box, an output shaft of the rotating motor body fixedly connected to a second rotating rod through a coupling, one end of the second rotating rod passes through the crushing box and a second crushing roller is sleeved on the outer wall, a second gear is also arranged on one side of the second rotating rod, a guide plate is installed on the inner bottom wall of the crushing box, a connecting pipe is installed on the bottom of one side of the crushing box, a processing box is arranged on the top of the other side of the base, and a water tank is arranged on the top of the processing box.

[0051] A self-priming water pump body is arranged on the inner bottom wall of the water tank, a delivery pipe is installed at the bottom of the water tank and one end of the delivery pipe passes through the treatment box, a water spray plate is installed on the inner top wall of the treatment box, a plurality of water spray heads are arranged at the bottom of the water spray plate, a filter plate is arranged on the inner wall of the treatment box, a slag discharge pipe is installed on one side of the treatment box, a water pump body is arranged on one side of the treatment box, a water suction pipe is installed at the bottom of the water pump body and one end of the delivery pipe passes through the treatment box, a guide pipe is installed on the top of the water pump body and one end of the guide pipe passes through the water tank.

[0052] The first rotating rod is fixedly connected to the first crushing roller, and a first gear is arranged on the outer wall of the first rotating rod.

[0053] There are two first crushing rollers, and the two first crushing rollers rotate in close proximity.

[0054] The second rotating rod is fixedly connected to the second crushing roller and the second gear, and the number of the second gears is two.

[0055] The filter plate is arranged to be inclined at a slope of fifteen degrees, and a filter screen is arranged on the inner wall of the filter plate.

[0056] The water pumping pipe is connected to the processing box, and an isolation net is arranged at the bottom of the processing box.

[0057] The beneficial effects of this scheme are as follows: by setting a powerful motor body, a first rotating rod, a first crushing roller and a first gear, the mine solid waste is preliminarily crushed; by setting a rotating motor body, a second rotating rod, a second crushing roller and a second gear, the preliminarily crushed mine solid waste is secondary crushed to ensure that all the mine solid waste is crushed; a water tank, a self-priming water pump body, a conveying pipe, a water spray plate and a plurality of water spray heads are set to facilitate the flushing of the crushed mine solid waste; a filter plate is set to filter and export the mine solid waste remaining after flushing; and the above steps are repeated until the mine solid waste is completely crushed into powder for flushing, thereby achieving zero emission treatment of the mine solid waste.

[0058] Reference Figures 1 to 6 , the present invention discloses a zero-emission processing device for mining solid waste, comprising: a crushing bin 2, in which a crushing mechanism and a screening mechanism are arranged from top to bottom;

[0059] The crushing mechanism includes two symmetrically arranged first extrusion blocks 15, the two first extrusion blocks 15 are respectively close to the two opposite inner side walls of the crushing bin 2, and the distance between the two first extrusion blocks 15 is gradually set from the middle to the upper and lower ends;

[0060] A second extrusion block 17 is disposed between the two first extrusion blocks 15. The second extrusion block 17 is located at the lower part of the first extrusion block 15 and is adapted to the first extrusion block 15.

[0061] The two first extrusion blocks 15 are connected to the power mechanism through a transmission mechanism, and the second extrusion block 17 is connected to the power mechanism. The power mechanism drives the two first extrusion blocks 15 to move relative to each other and drives the second extrusion block 17 to reciprocate up and down to crush the solid waste in the mine.

[0062] When the present invention is working, the mine solid waste is first put into the crushing bin 2, and the mine solid waste first falls between the two first extrusion blocks 15 and the second extrusion block 17. At this time, the power mechanism drives the two first extrusion blocks 15 to move relative to each other and drives the second extrusion block 17 to reciprocate up and down to crush the mine solid waste. The crushed mine solid waste is screened, and the crushed stones that meet the specifications fall into the screening mechanism, and the mine solid waste that does not meet the specifications flows back to the top of the crushing mechanism for re-crushing.

[0063] In the present invention, the two first extrusion blocks 15 cooperate with the second extrusion block 17 to shorten the stroke of a single extrusion block, thereby improving the crushing efficiency of mining solid waste.

[0064] The second extrusion block 17 is provided with second crushing teeth 18 on the side wall opposite to the two first extrusion blocks 15, and the first extrusion block 15 is provided with first crushing teeth 16 on the side wall opposite to the second extrusion block 17, thereby further improving the crushing efficiency of the mine solid waste.

[0065] In a feasible solution, the second extrusion block 17 is arranged in a triangular shape and one of its tips is arranged upward, both ends of the second extrusion block 17 are fixedly connected to limit sliders, both limit sliders are slidably connected in the limit slide grooves, the limit slide grooves are vertically opened on the two opposite inner side walls of the crushing bin 2, and the bottom of the second extrusion block 17 is provided with an installation cavity, and a plurality of articulated seats 20 are fixedly connected in the installation cavity, and the plurality of articulated seats 20 are arranged at equal intervals along the length direction of the second extrusion block 17, and the plurality of articulated seats 20 are all rotatably connected to the crankshaft 19, and the crankshaft 19 is rotatably connected in the crushing bin 2, and both ends of the crankshaft 19 extend out of the crushing bin 2 and are transmission-connected to the power mechanism.

[0066] In a feasible solution, the transmission mechanism includes a support frame 35 fixedly connected to the opposite sides of the crushing bin 2, and two gears 31 are rotatably connected to the support frame 35, one of the gears 31 is transmission-connected to the power mechanism, and the two gears 31 are meshingly arranged. A short shaft 32 is fixedly connected to the side of the gear 31 close to the crushing bin 2, and the short shaft 32 is eccentrically arranged with the gear 31. One end of a third connecting rod 33 is rotatably connected to the short shaft 32, and the other end of the third connecting rod 33 is rotatably connected to a driving slider 34. The driving slider 34 is slidably connected in a through groove, and the through groove is horizontally opened on the side wall of the crushing bin 2. The driving slider 34 extends into the crushing bin 2 and is fixedly connected to the first extrusion block 15.

[0067] In a feasible solution, the power mechanism includes a driving motor 4 fixedly connected to the side wall of the crushing bin 2, the output shaft of the driving motor 4 is coaxially fixedly connected to the input shaft of the reducer 3, the reducer 3 is fixedly connected to the side wall of the crushing bin 2, both ends of the output shaft of the reducer 3 are coaxially fixedly connected to the second rotating shaft 30, the second rotating shaft 30 is rotatably connected to the outer wall of the crushing bin 2 through an axle seat, the end of the second rotating shaft 30 away from the reducer 3 is coaxially fixedly connected to a double sprocket 5, the double sprocket 5 is respectively connected to a first sprocket 6 and a second sprocket 7 through two chains, the second sprocket 7 is coaxially fixedly connected to the gear 31, and the first sprocket 6 is coaxially fixedly connected to the end of the crankshaft 19.

[0068] In a feasible solution, the screening mechanism includes a screen 25, which is tiltedly arranged in the crushing bin 2, the high end of the screen 25 is hinged to the inner wall of the crushing bin 2, the low end of the screen 25 is hinged to one end of a second connecting rod 29, the other end of the second connecting rod 29 is hinged to one end of a first connecting rod 28, the other end of the first connecting rod 28 is fixedly connected to the output shaft of the vibration motor 27, the vibration motor 27 is fixedly connected to the inner wall of the crushing bin 2 through a fixed block, the fixed block is fixedly connected to a limit block 26, and the limit block 26 is arranged in contact with the screen 25.

[0069] In a feasible solution, a feed opening 12 is provided at the bottom end of the crushing bin 2, and the feed opening 12 is arranged in an inverted cone shape. The top end of the crushing bin 2 is connected to a feed hopper 8, and a plurality of legs 1 are fixedly connected to the bottom end of the crushing bin 2 at equal intervals in the circumferential direction, and the legs 1 are arranged vertically.

[0070] In a feasible solution, a plurality of water injection holes 14 are circumferentially evenly spaced on the outer wall of the crushing bin 2, and the plurality of water injection holes 14 are located at the lower part of the crushing bin 2. A water injection pipe 11 is circumferentially fixedly connected to the outer wall of the crushing bin 2, and the water injection pipe 11 is connected to the water injection holes 14, and the water injection pipe 11 is connected to an external water supply device.

[0071] In a feasible solution, a lifting bucket 9 is provided on one side of the crushing bin 2, and a return material outlet 13 is connected to one side of the lifting bucket 9. The return material outlet 13 is tilted downward at one end away from the lifting bucket 9 and is connected to the feed hopper 8. The lifting bucket 9 is connected to the return material feed port 23. The return material feed port 23 is opened on the crushing bin 2, and the return material feed port 23 is close to the lower end of the screen 25. A lifting mechanism is provided in the lifting bucket 9.

[0072] In a feasible solution, the lifting mechanism includes two first rotating shafts 24 rotatably connected to the upper and lower ends of the lifting bucket 9, the two first rotating shafts 24 are arranged in parallel, a conveyor belt 21 is sleeved on the two first rotating shafts 24, a plurality of conveyor plates 22 are fixedly connected to the conveyor belt 21 at equal intervals in the circumferential direction, the conveyor plate 22 is arranged to be tilted downward at one end close to the crushing bin 2, and the conveyor plate 22 is in sliding contact with the inner wall of the lifting bucket 9;

[0073] One of the first rotating shafts 24 passes through the lifting bucket 9 and is coaxially fixedly connected with the output shaft of the lifting motor 10 , and the lifting motor 10 is fixedly connected to the lifting bucket 9 .

[0074] Working principle: The solid waste from the mine is firstly put into the crushing bin 2 through the feed hopper 8. Since the distance between the two first extrusion blocks 15 is gradually set from the middle to the upper and lower ends, the solid waste from the mine can be effectively prevented from flying out of the feed hopper 8 due to the extrusion of the two first extrusion blocks 15;

[0075] The driving motor 4 rotates to drive the reducer 3 to move, and the reducer 3 drives the first sprocket 6 and the second sprocket 7 to move through the double sprocket 5. The first sprocket 6 and the second sprocket 7 drive the crankshaft 19 and the gear 31 to move respectively. The crankshaft 19 drives the second extrusion block 17 to reciprocate up and down, and the gear 31 drives the driving slider 34 to reciprocate in the horizontal direction through the short shaft 32, and the mine solid waste is extruded and crushed synchronously. The extruded and crushed mine solid waste falls on the screen 25, and the vibration motor 27 drives the first connecting rod 28 to rotate, and the first connecting rod 28 drives the second connecting rod 29 to rotate, thereby driving the screen 25 to vibrate, and the crushed stones that meet the specifications are screened out. Because the screen 25 is tilted, the crushed stones that do not meet the specifications move to the bottom end of the screen 25 and enter the lifting bucket 9 through the return material feed port 23. The lifting motor 10 drives the conveyor belt 21 to move through the first rotating shaft 24, and then the crushed stones that do not meet the specifications enter the feed bucket 8 through the return material discharge port 13 through the conveying plate 22, and are crushed again;

[0076] Water is injected into the water injection hole 14 through the water injection pipe 11 to wash away the dust attached to the inner wall of the discharge port 12 and to settle the dust to prevent the dust from affecting the environment.

[0077] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0078] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A zero-emission treatment equipment for mining solid waste, characterized in that: include: A crushing bin (2), wherein a crushing mechanism and a screening mechanism are arranged from top to bottom in the crushing bin (2); The crushing mechanism comprises two symmetrically arranged first extrusion blocks (15), the two first extrusion blocks (15) are respectively close to two opposite inner side walls of the crushing bin (2), and the distance between the two first extrusion blocks (15) is gradually set from the middle to the upper and lower ends; A second extrusion block (17) is arranged between the two first extrusion blocks (15), and the second extrusion block (17) is located at the lower part of the first extrusion block (15) and is adapted to the first extrusion block (15); The two first extrusion blocks (15) are connected to a power mechanism through a transmission mechanism, and the second extrusion block (17) is connected to the power mechanism. The power mechanism drives the two first extrusion blocks (15) to move relative to each other and drives the second extrusion block (17) to move up and down to reciprocate, thereby crushing the mining solid waste.

2. The zero-emission treatment equipment for mining solid waste according to claim 1 is characterized by: The second extrusion block (17) is arranged in a triangular shape with one of its tips facing upwards. Both ends of the second extrusion block (17) are fixedly connected to limit sliders. Both limit sliders are slidably connected in limit slide grooves. The limit slide grooves are vertically arranged on two opposite inner side walls of the crushing bin (2). The bottom of the second extrusion block (17) is provided with a mounting cavity. A plurality of hinge seats (20) are fixedly connected in the mounting cavity. The plurality of hinge seats (20) are arranged at equal intervals along the length direction of the second extrusion block (17). The plurality of hinge seats (20) are rotatably connected to a crankshaft (19). The crankshaft (19) is rotatably connected in the crushing bin (2). Both ends of the crankshaft (19) extend out of the crushing bin (2) and are transmission-connected to the power mechanism.

3. The zero-emission treatment equipment for mining solid waste according to claim 2 is characterized by: The transmission mechanism comprises a support frame (35) fixedly connected to opposite sides of the crushing bin (2); two gears (31) are rotatably connected to the support frame (35); one of the gears (31) is transmission-connected to the power mechanism; the two gears (31) are meshed; a short shaft (32) is fixedly connected to one side of the gear (31) close to the crushing bin (2); the short shaft (32) and the gear (31) are eccentrically arranged; one end of a third connecting rod (33) is rotatably connected to the short shaft (32); the other end of the third connecting rod (33) is rotatably connected to a driving slider (34); the driving slider (34) is slidably connected in a through groove; the through groove is horizontally arranged on the side wall of the crushing bin (2); the driving slider (34) extends into the crushing bin (2) and is fixedly connected to the first extrusion block (15).

4. The zero-emission treatment equipment for mining solid waste according to claim 3 is characterized by: The power mechanism comprises a driving motor (4) fixedly connected to the side wall of the crushing bin (2); the output shaft of the driving motor (4) is coaxially fixedly connected to the input shaft of a reducer (3); the reducer (3) is fixedly connected to the side wall of the crushing bin (2); both ends of the output shaft of the reducer (3) are coaxially fixedly connected to a second rotating shaft (30); the second rotating shaft (30) is rotatably connected to the outer wall of the crushing bin (2) through a shaft seat; one end of the second rotating shaft (30) away from the reducer (3) is coaxially fixedly connected to a double sprocket (5); the double sprocket (5) is respectively connected to a first sprocket (6) and a second sprocket (7) through two chains; the second sprocket (7) is coaxially fixedly connected to the gear (31); and the first sprocket (6) is coaxially fixedly connected to the end of the crankshaft (19).

5. The zero-emission treatment equipment for mining solid waste according to claim 1 is characterized by: The screening mechanism comprises a screen (25), the screen (25) being arranged obliquely in the crushing bin (2), the upper end of the screen (25) being hinged to the inner side wall of the crushing bin (2), the lower end of the screen (25) being hinged to one end of a second connecting rod (29), the other end of the second connecting rod (29) being hinged to one end of a first connecting rod (28), the other end of the first connecting rod (28) being fixedly connected to the output shaft of a vibration motor (27), the vibration motor (27) being fixedly connected to the inner side wall of the crushing bin (2) via a fixing block, the fixing block being fixedly connected to a limiting block (26), the limiting block (26) being arranged in contact with the screen (25).

6. The zero-emission treatment equipment for mining solid waste according to claim 5 is characterized by: The bottom end of the crushing bin (2) is provided with a feed opening (12), and the feed opening (12) is arranged in an inverted cone shape. The top end of the crushing bin (2) is connected to a feed hopper (8). The bottom end of the crushing bin (2) is fixedly connected with a plurality of legs (1) at equal intervals in the circumferential direction, and the legs (1) are arranged vertically.

7. The zero-emission treatment equipment for mining solid waste according to claim 1 is characterized by: A plurality of water injection holes (14) are circumferentially arranged at equal intervals on the outer wall of the crushing bin (2), the plurality of water injection holes (14) being located at the lower part of the crushing bin (2), a water injection pipe (11) is circumferentially fixedly connected to the outer wall of the crushing bin (2), the water injection pipe (11) being connected to the water injection holes (14), and the water injection pipe (11) being connected to an external water supply device.

8. The zero-emission treatment equipment for mining solid waste according to claim 6 is characterized by: A lifting bucket (9) is provided on one side of the crushing bin (2), and a return material discharge port (13) is connected to one side of the lifting bucket (9). The return material discharge port (13) is arranged at an end away from the lifting bucket (9) and is inclined downward and connected to the feed hopper (8). The lifting bucket (9) is connected to a return material feed port (23). The return material feed port (23) is provided on the crushing bin (2), and the return material feed port (23) is close to the lower end of the screen (25). A lifting mechanism is provided in the lifting bucket (9).

9. The zero-emission treatment equipment for mining solid waste according to claim 8, characterized in that: The lifting mechanism comprises two first rotating shafts (24) rotatably connected to the upper and lower ends of the lifting bucket (9), the two first rotating shafts (24) are arranged in parallel, a conveyor belt (21) is sleeved on the two first rotating shafts (24), a plurality of conveyor plates (22) are fixedly connected to the conveyor belt (21) at equal intervals in the circumferential direction, the conveyor plate (22) is arranged at an angle downward at one end close to the crushing bin (2), and the conveyor plate (22) is in sliding contact with the inner wall of the lifting bucket (9); One of the first rotating shafts (24) passes through the lifting bucket (9) and is coaxially fixedly connected to the output shaft of the lifting motor (10), and the lifting motor (10) is fixedly connected to the lifting bucket (9).

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