A device for ecological restoration of abandoned pyrite mine sites

Abstract

This invention discloses an apparatus for ecological restoration of abandoned pyrite mine sites, comprising a matrix preparation machine and multiple spreading and seeding machines. The matrix preparation machine includes a sludge tank, a fly ash tank, and a mixing and discharging device. The two inlets of the mixing and discharging device are respectively connected to the outlets of the sludge tank and the fly ash tank. The outlet of the mixing and discharging device is matched with the funnel-shaped inlet of the material tank of the spreading and seeding machine. The spreading and seeding machine has a material tank, a punch, and a spreader arranged sequentially from front to back. A scraper is provided on the front side of the bottom outlet of the material tank, and a scraper plate is provided on the rear side. This invention discloses an apparatus for ecological restoration of abandoned pyrite mine sites. The matrix preparation machine allows for continuous matrix preparation, resulting in good mixing and improved matrix preparation efficiency. Multiple spreading and seeding machines can simultaneously perform spreading and seeding operations on abandoned mine sites, greatly improving the efficiency of ecological restoration of abandoned mine sites.

Description

Technical Field

[0001] This invention relates to the field of mine ecological restoration technology, and in particular to a device for ecological restoration of abandoned pyrite mine sites. Background Technology

[0002] Pyrite is an important mineral for producing sulfuric acid and sulfur. Due to its sulfur and iron content, the mining process primarily causes chemical pollution to the geological environment of the mines, resulting in severe ecological damage that is difficult to restore and costly to remediate. The damage to water and land resources is particularly critical, as acidic wastewater, tailings, and slag are significant contributors to this damage. Therefore, in restoring the ecological environment of such mines, it is essential to focus on source control, implementing appropriate measures to plug leaks and reduce water pollution. Secondly, comprehensive remediation of contaminated soil is crucial. A combination of physical, chemical, and biological methods can be employed to promote comprehensive remediation of contaminated land and improve remediation effectiveness.

[0003] When carrying out comprehensive treatment of polluted soil, the method adopted is to mix urban sludge and fly ash at a mass ratio of (1-2):1 and use it as a covering substrate for the ecological restoration of abandoned pyrite mine sites. This can effectively avoid the generation of acidic mine wastewater and prevent the migration and transformation of heavy metals. After covering, the substrate can serve as a good ecological restoration substrate for abandoned mine sites, allowing the mine to regrow vegetation and preventing secondary damage.

[0004] However, in the process of covering the substrate and planting plants, it is often necessary to manually mix the substrate and then cover it on the abandoned mining land before planting the plants. Since the abandoned mining land is large, manually covering the substrate and planting all the plants is not only labor-intensive but also inefficient.

[0005] Therefore, it is necessary to propose a device for the ecological restoration of abandoned pyrite mine sites in order to solve the above problems. Summary of the Invention

[0006] The technical problem to be solved by this invention is to address the issue of the large workload and low efficiency of manually covering substrate and planting vegetation on abandoned mining sites, and to propose a device for the ecological restoration of abandoned pyrite mining sites.

[0007] This invention provides an apparatus for ecological restoration of abandoned pyrite mine sites, comprising: a substrate preparation machine and multiple spreading and seeding machines. The substrate preparation machine includes a sludge tank, a fly ash tank, and a mixing and discharging device. The two inlets of the mixing and discharging device are respectively connected to the outlets of the sludge tank and the fly ash tank. The outlet of the mixing and discharging device is matched with the funnel-shaped inlet of the material tank of the spreading and seeding machine. The spreading and seeding machine is provided with a material tank, a puncher, and a spreading device arranged sequentially from front to back. A scraper is provided on the front side of the bottom outlet of the material tank, and a scraper is provided on the rear side.

[0008] In a preferred embodiment of this solution, the mixing and discharging device includes a feeding section, a mixing tank, and a discharging section connected in sequence. The feeding section is equipped with a feeding conveyor belt, and the top of the feeding section is provided with a first inlet and a second inlet in sequence. The sludge tank is connected to the first inlet through a first screw conveyor, and the fly ash tank is connected to the second inlet through a second screw conveyor.

[0009] Furthermore, the inlet of the mixing tank is connected to the tail end of the feeding conveyor belt, and a first stirring device is installed inside the mixing tank.

[0010] Furthermore, an inclined third screw conveyor is installed in the discharge section, and the inlet of the third screw conveyor is connected to the outlet of the mixing tank.

[0011] In a preferred embodiment of this solution, the top of the material tank is provided with an outwardly extending funnel-shaped inlet, the material tank is provided with a second stirring device, the bottom outlet of the material tank is connected to a fourth screw conveyor, and an outlet valve is provided on the bottom outlet of the material tank. The fourth screw conveyor is inclined downward after passing through the spreading and seeding machine.

[0012] Furthermore, a first height adjustment mechanism is provided on the front side of the spreading and seeding machine. The upper part of the scraper is inserted into the first height adjustment mechanism and fixed by bolts. The lower part of the scraper is inclined backward and located in front of the outlet of the fourth screw conveyor.

[0013] Furthermore, a second height adjustment mechanism is provided on the bottom of the spreading and seeding machine. The scraper is fixedly connected to the second height adjustment mechanism by bolts, and the scraper is located behind the outlet of the fourth screw conveyor.

[0014] Furthermore, the punch includes a punching tube, which is vertically inserted into the material spreading and seeding machine and extends out of the machine at the bottom. A rotary telescopic motor is fixedly installed at the top of the punching tube, and the output end of the rotary telescopic motor is connected to a drilling rod, which is installed inside the punching tube.

[0015] Furthermore, the spreader includes a spreading pipe, which is inclinedly arranged on one side of the perforated pipe and its bottom end is connected to the bottom end of the perforated pipe. The top of the spreading pipe is provided with an openable top cover, which is detachably connected to the telescopic shaft of the telescopic motor. The telescopic motor is located on one side of the spreading pipe and is fixed to the spreading and seeding machine by a bracket.

[0016] Furthermore, a workstation is provided on the rear side of the material spreading and seeding machine, and a control display is provided next to the workstation. The control display is electrically connected to the telescopic motor, the rotary telescopic motor, and the outlet valve.

[0017] Implementing this invention has the following beneficial effects:

[0018] This invention discloses an apparatus for ecological restoration of abandoned pyrite mine sites, comprising a matrix preparation machine and multiple spreading and seeding machines. The matrix preparation machine can continuously prepare the matrix, resulting in good mixing and improved matrix preparation efficiency. The multiple spreading and seeding machines can simultaneously perform spreading and seeding operations on the abandoned mine sites, greatly improving the efficiency of ecological restoration of abandoned mine sites.

[0019] Before laying the material, large particles of waste on the surface of the waste land can be scraped off by a floor scraper to keep the land flat before laying the material. After laying the material, the thickness of the material can be adjusted by a scraper. Then, after drilling holes in the waste land with a hole puncher, grass seeds can be sown. The whole process is highly automated, which greatly reduces the amount of manual labor. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a top view schematic diagram of the device used for ecological restoration of abandoned pyrite mine sites;

[0022] Figure 2 This is a side structural perspective view of the material spreading and seeding machine.

[0023] The diagram shows: 1. Substrate preparation machine; 2. Spreading and seeding machine; 3. Sludge tank; 4. Fly ash tank; 5. Feeding section; 6. Mixing tank; 7. Discharge section; 8. Feeding conveyor belt; 9. First inlet; 10. Second inlet; 11. First screw conveyor; 12. Second screw conveyor; 13. First mixing device; 14. Third screw conveyor; 15. Material tank; 16. Funnel-shaped inlet; 17. Second mixing device; 18. Fourth screw conveyor; 19. First height adjustment mechanism; 20. Scraper; 21. Second height adjustment mechanism; 22. Scraper; 23. Perforated pipe; 24. Rotary telescopic motor; 25. Drilling rod; 26. Spreading pipe; 27. Top cover; 28. Telescopic motor; 29. ​​Workstation; and 30. Control display. Detailed Implementation

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Example 1

[0026] Please see Figure 1 , Figure 1 This is a top view schematic diagram of the device used for ecological restoration of abandoned pyrite mine sites; the device includes: a substrate preparation machine 1 and multiple spreading and seeding machines 2.

[0027] The substrate preparation machine 1 includes a sludge tank 3, a fly ash tank 4, and a mixing and discharging device. The two inlets of the mixing and discharging device are connected to the outlets of the sludge tank 3 and the fly ash tank 4, respectively.

[0028] In this embodiment, preferably, the mixing and discharging device includes a feeding section 5, a mixing tank 6, and a discharging section 7 connected in sequence. A feeding conveyor belt 8 is provided inside the feeding section 5. A first inlet 9 and a second inlet 10 are sequentially opened at the top of the feeding section 5. The sludge tank 3 is connected to the first inlet 9 through a first screw conveyor 11, and the fly ash tank 4 is connected to the second inlet 10 through a second screw conveyor 12.

[0029] The inlet of the mixing tank 6 is connected to the tail end of the feeding conveyor belt 8, and the mixing tank 6 is equipped with a first stirring device 13.

[0030] An inclined third screw conveyor 14 is installed in the discharge section 7. The inlet of the third screw conveyor 14 is connected to the outlet of the mixing tank 6, and the outlet is matched with the funnel-shaped inlet 16 of the material tank 15 of the spreading and seeding machine 2.

[0031] The sludge tank holds municipal sludge, and the fly ash tank holds fly ash. Both enter the feeding section through the first and second inlets respectively, falling onto the feeding conveyor belt and being transported to the mixing tank for mixing. After mixing, they enter the third screw conveyor in the discharge section for output, and then fall into the material tank of the spreading and seeding machine. A discharge valve is required at the discharge port of the discharge section, which closes when no spreading and seeding machine is available to receive material.

[0032] Example 2

[0033] Please see Figure 1 and Figure 2 , Figure 1 This is a top view schematic diagram of the device used for ecological restoration of abandoned pyrite mine sites; Figure 2 This is a side perspective view of the material spreading and seeding machine. From front to back, the material spreading and seeding machine is equipped with a material tank 15, a puncher, and a spreader.

[0034] The top of the material tank 15 is provided with an outwardly extending funnel-shaped inlet 16. The material tank 15 is provided with a second stirring device 17. The bottom outlet of the material tank 15 is connected to the fourth screw conveyor 18, and an outlet valve is provided on the bottom outlet of the material tank 15. The fourth screw conveyor 18 is inclined downward after passing through the spreading and seeding machine 2.

[0035] A first height adjustment mechanism 19 is provided on the front side of the spreading and seeding machine 1. The upper part of the scraper 20 is inserted into the first height adjustment mechanism 19 and fixed by bolts. The lower part of the scraper 20 is inclined backward and located in front of the outlet of the fourth screw conveyor 18.

[0036] A second height adjustment mechanism 21 is provided on the bottom of the spreading and seeding machine 1. The scraper 22 is fixedly connected to the second height adjustment mechanism 21 by bolts. The scraper 22 is located on the rear side of the outlet of the fourth screw conveyor 18.

[0037] The punch includes a punch tube 23, which is vertically inserted into the material spreading and seeding machine 2 and extends out of the material spreading and seeding machine 2 at the bottom. A rotary telescopic motor 24 is fixedly installed at the top of the punch tube 23. The output end of the rotary telescopic motor 24 is connected to the drilling rod 25, which is installed inside the punch tube 23.

[0038] The spreader includes a spreading pipe 26, which is inclinedly disposed on one side of a perforated pipe 23, and its bottom end is connected to the bottom end of the perforated pipe 23. The top of the spreading pipe 26 is provided with an openable top cover 27, which is detachably connected to the telescopic shaft of a telescopic motor 28. The telescopic motor 28 is disposed on one side of the spreading pipe 26 and is fixed to the spreading and seeding machine 2 by a bracket.

[0039] A workstation 29 is provided on the rear side of the material spreading and seeding machine 2. A control display 30 is provided next to the workstation 29. The control display 30 is electrically connected to the telescopic motor 28, the rotary telescopic motor 24, and the outlet valve of the material tank 15.

[0040] Before spreading the material, the spreading and seeding machine fills the material tank at the outlet of the substrate preparation machine with substrate. A person sits at the work station and controls the movement trajectory of the spreading and seeding machine. During the movement, the scraper 20 scrapes away large particles from the surface of the waste land, keeping the waste land flat before the material is laid. The substrate in the material tank is output through the fourth screw conveyor and falls onto the waste land, where it is leveled by the scraper. The height of the scraper from the ground is the laying height of the substrate. After the material is laid, the drilling machine starts to drill holes in the mine waste land at intervals. The drilling process is as follows: the telescopic rotary motor drives the drilling rod to drill holes and then retracts into the drilling tube. When it is located above the part connected to the spreading tube, it stops. The telescopic motor is started to move the top cover, exposing the spreading tube. Then, rye grass seeds are manually sprinkled into the spreading tube. The grass seeds enter the drilling tube along the spreading tube and fall into the drilled holes. During the entire drilling and seeding process, the material laying and seeding machine is stationary. After the drilling and seeding are completed, all parts are reset before the machine moves again.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for ecological restoration of abandoned pyrite mine sites, characterized in that, include: The system includes a substrate preparation machine and multiple spreading and seeding machines. The substrate preparation machine comprises a sludge tank, a fly ash tank, and a mixing and discharging device. The two inlets of the mixing and discharging device are respectively connected to the outlets of the sludge tank and the fly ash tank. The outlet of the mixing and discharging device is matched with the funnel-shaped inlet of the material tank of the spreading and seeding machine. The spreading and seeding machine is arranged sequentially from front to back with a material tank, a punch, and a spreader. A scraper is provided on the front side of the bottom outlet of the material tank, and a scraper plate is provided on the rear side. The mixing and discharging device includes a feeding section, a mixing tank, and a discharging section connected in sequence. A feeding conveyor belt is provided in the feeding section. A first inlet and a second inlet are sequentially opened at the top of the feeding section. The sludge tank is connected to the first inlet via a first screw conveyor, and the fly ash tank is connected to the second inlet via a second screw conveyor. The inlet of the mixing tank is correspondingly connected to the tail end of the feeding conveyor belt. A first... A mixing device is provided; a third spiral conveyor is installed at an inclination in the discharge section, and the inlet of the third spiral conveyor is connected to the outlet of the mixing tank; a funnel-shaped inlet extending outward is provided at the top of the material tank, a second mixing device is provided inside the material tank, the bottom outlet of the material tank is connected to a fourth spiral conveyor, and an outlet valve is provided at the bottom outlet of the material tank; the fourth spiral conveyor is inclined downward after passing through the spreading and seeding machine; a first height adjustment mechanism is provided on the front side of the spreading and seeding machine, the upper part of the scraper plate is inserted into the first height adjustment mechanism and fixed by bolts, the lower part of the scraper plate is inclined backward and located in front of the outlet of the fourth spiral conveyor; a second height adjustment mechanism is provided on the bottom of the spreading and seeding machine, the scraper plate is fixedly connected to the second height adjustment mechanism by bolts, and the scraper plate is located behind the outlet of the fourth spiral conveyor.

2. The device for ecological restoration of abandoned pyrite mine sites according to claim 1, characterized in that, The punch includes a punching tube, which is vertically inserted into the spreading and seeding machine and extends out of the machine at the bottom. A rotary telescopic motor is fixedly installed at the top of the punching tube, and the output end of the rotary telescopic motor is connected to a drilling rod, which is installed inside the punching tube.

3. The device for ecological restoration of abandoned pyrite mine sites according to claim 2, characterized in that, The spreader includes a spreading pipe, which is inclinedly disposed on one side of the perforated pipe and its bottom end is connected to the bottom end of the perforated pipe. The top of the spreading pipe is provided with an openable top cover, which is detachably connected to the telescopic shaft of the telescopic motor. The telescopic motor is disposed on one side of the spreading pipe and is fixed to the spreading and seeding machine by a bracket.

4. The device for ecological restoration of abandoned pyrite mine sites according to claim 3, characterized in that, A workstation is provided on the rear side of the spreading and seeding machine, and a control display is provided next to the workstation. The control display is electrically connected to the telescopic motor, the rotary telescopic motor, and the outlet valve.

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