Efficient water-sand separation process

Abstract

The invention discloses an efficient water-sand separation process, and relates to the technical field of sewage treatment.The efficient water-sand separation process comprises a workbench, a separation box is fixedly connected to the middle of the top end of the workbench, a separation mechanism is installed in the separation box, and conveying mechanisms are symmetrically arranged on the left side and the right side of the separation box and fixedly installed at the top end of the workbench; a cleaning mechanism is arranged on the front side of the separation box and fixedly installed on the front portion of the top end of the workbench. According to the device, the primary screen and the secondary screen are arranged, slime water is filtered and screened twice, large-particle coal particles, small-particle coal particles and slime water particles are separated, and the large-particle coal particles and the small-particle coal particles are recycled, so that the cost is reduced, the working intensity of workers is reduced, the primary screen and the secondary screen are cleaned by a shower head, and the working efficiency is improved. And coal particles left on the primary screen and the secondary screen are prevented from falling to the bottom end of the separation box to block the second water suction pump, and the service life of the second water suction pump is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, and in particular to a high-efficiency water-sand separation process. Background Art

[0002] Coal slime water is an important working medium in the coal preparation process, and it is also industrial wastewater generated in the coal wet processing process. In the coal preparation process, the treatment of coal slime water involves a wide range of areas, large investments, and is difficult to manage. Coal slime water is particularly stable and will not naturally settle even if it is left standing for several months, making it very difficult to treat. In order to meet the water quality requirements of the closed-loop circulation of coal slime water, prevent the deterioration of water quality during the closed-loop circulation of coal slime water, and protect the environment, research on the treatment technology of coal slime water has become increasingly necessary. Due to the differences in the properties of raw coal, the properties of coal mine slime water also have certain differences and commonalities.

[0003] In my country's coal production, the coal sludge water washed down from the working face enters the main tunnel drainage system or the downhill pump room without any treatment. This drainage method of the mine has continued for decades of coal production. This drainage method has many disadvantages. First, this kind of coal sludge water contains large coal particles, changes quickly, has strong impact force, and is easy to deposit. Second, it causes siltation in the canals through which it flows, resulting in large-scale deposition of coal sludge in the passing area, seriously affecting safe production. Third, a large amount of coal sludge in the canals needs to be cleaned manually on a regular basis, resulting in a large investment of manpower and material resources and reduced efficiency. Fourth, it causes serious damage to the drainage system equipment, reduces the efficiency of the pump, causes frequent failures, and even causes the risk of flooding in the downhill mining area. Summary of the invention

[0004] In order to solve the above technical problems, an efficient water-sand separation process is provided. The technical solution solves the problem that the canal through which the coal slime water flows, as mentioned in the above background technology, causes siltation, resulting in large-scale deposition of coal slime in the passing area, seriously affecting safe production. In addition, a large amount of coal slime in the canal needs to be cleaned manually on a regular basis, resulting in a large investment of manpower and material resources and reduced efficiency.

[0005] In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0006] An efficient water-sand separation process comprises a workbench, a separation box is fixedly connected to the middle of the top of the workbench, a separation mechanism is installed inside the separation box, a conveying mechanism is symmetrically arranged on the left and right sides of the separation box, the conveying mechanism is fixedly installed on the top of the workbench, a cleaning mechanism is arranged on the front side of the separation box, and the cleaning mechanism is fixedly installed on the front of the top of the workbench;

[0007] Wherein, the separation mechanism includes a rectangular groove, a mounting groove and an electric push rod, the rectangular grooves are provided with two groups, one group of the rectangular grooves is provided at the upper left and right sides of the separation box, and the other group of the rectangular grooves is provided at the lower left and right sides of the separation box, the rectangular grooves penetrate and are opened on the left and right sides of the separation box, the mounting grooves are provided inside the rectangular grooves, the mounting grooves are opened on the left and right inner sides of the separation box, the electric push rods are fixedly installed inside the mounting grooves, the output end of the upper electric push rod is fixedly connected with a primary screen, a connecting plate is fixedly connected at the connection between the left side of the separation box and the upper rectangular groove, a hydraulic cylinder is fixedly installed on the inner side of the connecting plate, the output end of the hydraulic cylinder is fixedly connected with a push plate, the output end of the lower electric push rod is fixedly connected with a secondary screen, a primary guide plate is fixedly connected at the connection between the upper right rectangular groove and the separation box, and a secondary guide plate is fixedly connected at the connection between the lower left rectangular groove and the separation box.

[0008] Preferably, both the front and rear sides of the separation box are fixedly connected with stabilizing plates, the tops of the two groups of stabilizing plates are fixedly installed with a first water pump, the input end of the first water pump is fixedly connected with a water inlet pipe, the output end of the first water pump is fixedly connected with a water outlet pipe, and the other end of the water outlet pipe is fixedly connected with a shower head.

[0009] Preferably, the front shower head is fixedly installed on the front side of the inner cavity of the separation box, and the rear shower head is fixedly installed on the rear side of the inner cavity of the separation box. The height of the front shower head is consistent with the height of the upper rectangular groove, and the height of the rear shower head is consistent with the height of the lower rectangular groove.

[0010] Preferably, the conveying mechanism includes an installation box, a fixed plate and a servo motor, and the installation boxes are provided in two groups, one group of the installation boxes is fixedly connected to the left top portion of the workbench, and the other group of the installation boxes is fixedly connected to the right top portion of the workbench, the fixed plate is fixedly connected to the front side of the installation box, the servo motor is fixedly installed on the top of the fixed plate, the output end of the servo motor passes through the front side of the installation box and is fixedly connected to a main shaft, the outer surface of the main shaft is sleeved with a conveyor belt, the top height of the conveyor belt on the left side is consistent with the bottom height of the primary guide plate, and the top height of the conveyor belt on the right side is consistent with the bottom height of the secondary guide plate.

[0011] Preferably, the cleaning mechanism includes a cleaning box, a second water pump and a liquid inlet pipe, the cleaning box is fixedly installed at the top front part of the workbench, the second water pump is arranged between the cleaning box and the separation box, the second water pump is fixedly installed at the top of the workbench, the liquid inlet pipe is fixedly connected to the input end of the second water pump, and the output end of the second water pump is fixedly connected to the liquid outlet pipe.

[0012] Preferably, the outer side of the primary screen is slidably connected to the inner side of the separation box, and the size of the primary screen is consistent with the inner diameter of the separation box.

[0013] Preferably, the outer side of the secondary screen is slidably connected to the inner side of the separation box, the size of the secondary screen is consistent with the inner diameter of the separation box, and the mesh diameter of the primary screen is larger than the mesh diameter of the secondary screen.

[0014] Preferably, the push plate is slidably connected to the rectangular groove, and the size of the push plate is consistent with the size of the rectangular groove.

[0015] Preferably, the liquid inlet pipe passes through the front bottom of the separation box and is connected to the interior of the separation box, and the other end of the liquid outlet pipe is connected to the cleaning box.

[0016] Preferably, the pressure of the shower head is set to 10 MPa.

[0017] Compared with the prior art, the present invention provides a highly efficient water-sand separation process, which has the following beneficial effects:

[0018] 1) In the present invention, a primary screen and a secondary screen are provided to filter and screen the coal slurry water twice, separate large coal particles, small coal particles and slurry particles, and recycle the large coal particles and small coal particles, thereby reducing costs and the work intensity of workers.

[0019] 2) In the present invention, a shower head and a cleaning box are provided. The shower head cleans the primary screen and the secondary screen to prevent the coal particles remaining on the primary screen and the secondary screen from falling to the bottom of the separation box and clogging the second water pump, thereby increasing the service life of the second water pump. In addition, the cleaning box disinfects the coal sludge water to prevent the coal sludge water from being directly discharged into the external environment, which may cause the spread of pathogens and reduce safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the transmission mechanism in the present invention;

[0022] Figure 3 for Figure 2 A schematic diagram of the local enlarged structure at point A in the middle;

[0023] Figure 4 It is a structural schematic diagram of the separation mechanism in the present invention;

[0024] Figure 5 It is a schematic diagram of the internal structure of the separation mechanism in the present invention.

[0025] The numbers in the figure are:

[0026] 1. Workbench;

[0027] 2. Separation box;

[0028] 3. Primary separation mechanism; 301. Rectangular groove; 302. Mounting groove; 303. Electric push rod; 304. Primary screen; 305. Connecting plate; 306. Hydraulic cylinder; 307. Push plate; 308. Secondary screen; 309. Primary guide plate; 310. Secondary guide plate; 311. Stabilizing plate; 312. First water pump; 313. Water inlet pipe; 314. Water outlet pipe; 315. Shower;

[0029] 4. Conveying mechanism; 401. Mounting box; 402. Fixing plate; 403. Servo motor; 404. Spindle; 405. Conveying belt;

[0030] 5. Cleaning mechanism; 501. Cleaning box; 502. Second water pump; 503. Liquid inlet pipe; 504. Liquid outlet pipe. DETAILED DESCRIPTION

[0031] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0032] Please refer to Figure 1-5 As shown, a high-efficiency water-sand separation process comprises a workbench 1, a separation box 2 is fixedly connected to the middle of the top of the workbench 1, a separation mechanism 3 is installed inside the separation box 2, a conveying mechanism 4 is symmetrically arranged on the left and right sides of the separation box 2, the conveying mechanism 4 is fixedly installed on the top of the workbench 1, a cleaning mechanism 5 is arranged on the front side of the separation box 2, and the cleaning mechanism 5 is fixedly installed on the front of the top of the workbench 1;

[0033] The separation box 2 is configured as a hollow structure;

[0034] Please refer to Figure 2-5As shown, the separation mechanism 3 includes a rectangular groove 301, a mounting groove 302 and an electric push rod 303. The rectangular groove 301 is provided with two groups. One group of rectangular grooves 301 is provided at the upper left and right sides of the separation box 2, and the other group of rectangular grooves 301 is provided at the lower left and right sides of the separation box 2. The rectangular groove 301 runs through and is opened on the left and right sides of the separation box 2. The mounting groove 302 is provided inside the rectangular groove 301. The mounting groove 302 is opened on the left and right inner sides of the separation box 2. The electric push rod 303 is fixedly installed inside the mounting groove 302. The upper electric push rod The output end of the rod 303 is fixedly connected with a primary screen 304, the outer side of the primary screen 304 is slidably connected to the inner side of the separation box 2, the size of the primary screen 304 is consistent with the inner diameter of the separation box 2, the left side of the separation box 2 is fixedly connected with a connection plate 305 at the connection point with the upper rectangular groove 301, a hydraulic cylinder 306 is fixedly installed on the inner side of the connection plate 305, the output end of the hydraulic cylinder 306 is fixedly connected with a push plate 307, the push plate 307 is slidably connected to the rectangular groove 301, and the size of the push plate 307 is consistent with the size of the rectangular groove 301;

[0035] The mesh diameter of the primary screen 304 is set to 10 mm to perform primary screening of the coal slime water;

[0036] The output end of the lower electric push rod 303 is fixedly connected to a secondary screen 308, the outer side of the secondary screen 308 is slidably connected to the inner side of the separation box 2, the size of the secondary screen 308 is consistent with the inner diameter of the separation box 2, the mesh diameter of the primary screen 304 is larger than the mesh diameter of the secondary screen 308, the connection between the upper rectangular groove 301 on the right and the separation box 2 is fixedly connected to a primary guide plate 309, the connection between the lower rectangular groove 301 on the left and the separation box 2 is fixedly connected to a secondary guide plate 310, the front and rear sides of the separation box 2 are fixedly connected to a stabilizing plate 311, the tops of the two sets of stabilizing plates 311 are fixedly installed with a first water pump 312, and the input end of the first water pump 312 is fixedly connected to the first water pump 312. A water inlet pipe 313 is fixedly connected, the water inlet pipe 313 is connected to an external water source, a shower head 315 pressurizes the external water source, and the primary screen 304 and the secondary screen 308 are cleaned by high pressure. The output end of the first water pump 312 is fixedly connected to a water outlet pipe 314, and the other end of the water outlet pipe 314 is fixedly connected to a shower head 315. The front shower head 315 is fixedly installed on the front side of the inner cavity of the separation box 2, and the rear shower head 315 is fixedly installed on the rear side of the inner cavity of the separation box 2. The height of the front shower head 315 is consistent with the height setting of the upper rectangular groove 301, and the height of the rear shower head 315 is consistent with the height setting of the lower rectangular groove 301. The pressure of the shower head 315 is set to 0.6MPa;

[0037] The mesh diameter of the secondary screen 308 is set to 5 mm to perform secondary screening on the coal slime water;

[0038] The angle between the primary guide plate 309 and the left conveyor belt 405 is 45°-60°, so that coal particles with a diameter greater than 10 mm can quickly enter the left conveyor belt 405;

[0039] The angle between the secondary guide plate 310 and the right conveyor belt 405 is 30°-45°. Since the diameter of the coal particles is less than 10 mm, the angle between the two is reduced to avoid small particles of coal falling and being difficult to recycle, which can easily increase the work intensity of the staff.

[0040] In this embodiment, the coal slurry water enters the separation box 2 through the working face, the primary screen 304 screens the coal slurry water, and screens out the coal particles with a diameter greater than 10 mm, and the coal particles and coal slurry water with a diameter less than 10 mm continue to move downward, the secondary screen 308 performs a secondary screening on the coal slurry water, and screens out the coal particles with a diameter greater than 5 mm, and the remaining coal slurry water enters the cleaning box 501 through the second pump 502, and the cleaning box 501 disinfects and discharges the coal slurry water to avoid the spread of germs. When the working face stops delivering coal slurry water to the separation box 2 , the hydraulic cylinder 306 at the upper end controls the push plate 307 to move toward the primary guide plate 309, and the bottom end of the push plate 307 is flush with the top end of the primary screen 304, and the push plate 307 pushes the coal particles onto the primary guide plate 309, and the coal particles enter the conveyor belt 405 through the primary guide plate 309 for recycling and use, thereby reducing costs. In addition, the hydraulic cylinder 306 at the lower end performs the same operation steps, but the movement direction of the hydraulic cylinder 306 at the lower end is opposite to that of the upper end hydraulic cylinder 306, and the coal particles with a diameter greater than 5 mm are recycled;

[0041] In a specific embodiment, the coal slime water is thoroughly screened, and multiple groups of screens can be set, and the mesh sizes of the screens can be set to 10mm, 8mm, 6mm, etc., respectively, and multiple screenings are performed to achieve full recovery and utilization of coal particles.

[0042] In another specific embodiment, after the coal particles on the primary screen 304 and the secondary screen 308 are pushed onto the conveying mechanism 4, the hydraulic cylinder 306 controls the push plate 307 to move away from the primary guide plate 309. When the inner side of the push plate 307 and the inner side of the separation box 2 are located on the same horizontal plane, the shower 315 cleans the primary screen 304 and the secondary screen 308, so that the mesh holes of the primary screen 304 and the secondary screen 308 maintain fluidity, thereby increasing the service life of the device.

[0043] Please refer to Figure 2As shown, the conveying mechanism 4 includes an installation box 401, a fixed plate 402 and a servo motor 403. The installation boxes 401 are provided with two groups, one group of installation boxes 401 is fixedly connected to the left portion of the top of the workbench 1, and the other group of installation boxes 401 is fixedly connected to the right portion of the top of the workbench 1. The fixed plate 402 is fixedly connected to the front side of the installation box 401, and the servo motor 403 is fixedly installed on the top of the fixed plate 402. The output end of the servo motor 403 passes through the front side of the installation box 401 and is fixedly connected to the main shaft 404. The outer surface of the main shaft 404 is sleeved with a conveyor belt 405. The top height of the left conveyor belt 405 is consistent with the bottom height of the primary guide plate 309, and the top height of the right conveyor belt 405 is consistent with the bottom height of the secondary guide plate 310.

[0044] In this embodiment, when the coal particles enter the conveyor belt 405 through the primary guide plate 309 and the secondary guide plate 310, the staff recycles and reuses the coal particles on the conveyor belt 405, which reduces costs. In addition, it also avoids coal particles blocking the device and increases the service life of the device. In addition, the main shaft 404 is provided with two groups, one group is fixedly connected to the output end of the servo motor 403, and the servo motor 403 controls the rotation of the main shaft 404 to transport the coal particles. The heights of both sides of the installation box 401 are higher than the height of the conveyor belt 405 to prevent coal particles from falling from the edge of the conveyor belt 405.

[0045] Please refer to Figure 1 As shown, the cleaning mechanism 5 includes a cleaning box 501, a second water pump 502 and a liquid inlet pipe 503. The cleaning box 501 is fixedly installed at the front of the top of the workbench 1. The second water pump 502 is arranged between the cleaning box 501 and the separation box 2. The second water pump 502 is fixedly installed at the top of the workbench 1. The liquid inlet pipe 503 is fixedly connected to the input end of the second water pump 502. The output end of the second water pump 502 is fixedly connected with a liquid outlet pipe 504. The liquid inlet pipe 503 runs through the front bottom of the separation box 2 and is connected to the interior of the separation box 2. The other end of the liquid outlet pipe 504 is connected to the cleaning box 501.

[0046] In this embodiment, after secondary screening, the coal slurry water gathers at the bottom of the separation box 2, and the second water pump 502 transports the coal slurry water to the cleaning box 501. Disinfectant is added to the cleaning box 501 to disinfect the coal slurry water to prevent the spread of pathogens contained in the coal slurry water and endanger human health.

[0047] The present invention specifically comprises the following steps when used:

[0048] Step 1: connect the separation box 2 to the working face of the coal mine, and the coal slurry water enters the separation box 2 through the working face;

[0049] Step 2: The primary screen 304 performs primary screening on the coal slurry water, and the coal particles with a diameter larger than 10 mm cannot pass through the primary screen 304;

[0050] Step 3: The coal slurry water after primary screening is screened for secondary screening on the secondary screen 308, and coal particles with a diameter larger than 5 mm cannot pass through the secondary screen 308;

[0051] Step 3: The second pump 502 delivers the secondary screened coal slurry water to the cleaning box 501 for cleaning and disinfection;

[0052] Step 4: The upper push plate 307 pushes the coal particles with a diameter greater than 10 mm onto the primary guide plate 309, and the primary guide plate 309 conveys the coal particles with a diameter greater than 10 mm to the left conveying mechanism 4 for recycling;

[0053] Step 5: The lower push plate 307 pushes the coal particles with a diameter larger than 5 mm to the secondary guide plate 310, and the secondary guide plate 310 conveys the coal particles with a diameter larger than 5 mm to the right conveying mechanism 4 for recycling;

[0054] Step 6: The shower head 315 cleans the primary screen 304 and the secondary screen 308 to remove foreign matter on the primary screen 304 and the secondary screen 208, thereby increasing the service life of the device.

[0055] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. An efficient water-sand separation process, characterized in that: The workbench (1) comprises a separation box (2) fixedly connected to the middle of the top of the workbench (1), a separation mechanism (3) installed inside the separation box (2), a conveying mechanism (4) symmetrically arranged on the left and right sides of the separation box (2), the conveying mechanism (4) fixedly installed on the top of the workbench (1), a cleaning mechanism (5) arranged on the front side of the separation box (2), and the cleaning mechanism (5) fixedly installed on the front of the top of the workbench (1); The separation mechanism (3) comprises a rectangular groove (301), a mounting groove (302) and an electric push rod (303). The rectangular groove (301) is provided in two groups, one group of the rectangular grooves (301) is provided at the upper left and right sides of the separation box (2), and the other group of the rectangular grooves (301) is provided at the lower left and right sides of the separation box (2). The rectangular groove (301) is provided through the left and right sides of the separation box (2), the mounting groove (302) is provided inside the rectangular groove (301), the mounting groove (302) is provided on the left and right inner sides of the separation box (2), the electric push rod (303) is fixedly installed inside the mounting groove (302), and the upper electric push rod ( The output end of the electric push rod (303) is fixedly connected with a primary screen (304), the connection between the left side of the separation box (2) and the upper rectangular groove (301) is fixedly connected with a connecting plate (305), the inner side of the connecting plate (305) is fixedly installed with a hydraulic cylinder (306), the output end of the hydraulic cylinder (306) is fixedly connected with a push plate (307), the output end of the electric push rod (303) on the lower side is fixedly connected with a secondary screen (308), the connection between the upper right rectangular groove (301) and the separation box (2) is fixedly connected with a primary guide plate (309), and the connection between the lower left rectangular groove (301) and the separation box (2) is fixedly connected with a secondary guide plate (310).

2. A high-efficiency water-sand separation process according to claim 1, characterized in that: The front and rear sides of the separation box (2) are both fixedly connected with a stabilizing plate (311), the top ends of the two sets of stabilizing plates (311) are both fixedly installed with a first water pump (312), the input end of the first water pump (312) is fixedly connected with a water inlet pipe (313), the output end of the first water pump (312) is fixedly connected with a water outlet pipe (314), and the other end of the water outlet pipe (314) is fixedly connected with a shower head (315).

3. A high-efficiency water-sand separation process according to claim 2, characterized in that: The shower head (315) on the front side is fixedly mounted on the front side of the inner cavity of the separation box (2), and the shower head (315) on the rear side is fixedly mounted on the rear side of the inner cavity of the separation box (2). The height of the shower head (315) on the front side is consistent with the height of the upper rectangular groove (301), and the height of the shower head (315) on the rear side is consistent with the height of the lower rectangular groove (301).

4. The high-efficiency water-sand separation process according to claim 1, characterized in that: The conveying mechanism (4) comprises an installation box (401), a fixed plate (402) and a servo motor (403). The installation box (401) is provided with two groups, one group of the installation boxes (401) is fixedly connected to the left portion of the top end of the workbench (1), and the other group of the installation boxes (401) is fixedly connected to the right portion of the top end of the workbench (1). The fixed plate (402) is fixedly connected to the front side of the installation box (401). The servo motor (403) is fixedly installed on the top end of the fixed plate (402). The output end of the servo motor (403) passes through the front side of the installation box (401) and is fixedly connected to a main shaft (404). A conveyor belt (405) is sleeved on the outer surface of the main shaft (404). The top height of the conveyor belt (405) on the left side is consistent with the bottom height of the primary guide plate (309), and the top height of the conveyor belt (405) on the right side is consistent with the bottom height of the secondary guide plate (310).

5. The high-efficiency water-sand separation process according to claim 1, characterized in that: The cleaning mechanism (5) comprises a cleaning box (501), a second water pump (502) and a liquid inlet pipe (503); the cleaning box (501) is fixedly mounted on the front of the top of the workbench (1); the second water pump (502) is arranged between the cleaning box (501) and the separation box (2); the second water pump (502) is fixedly mounted on the top of the workbench (1); the liquid inlet pipe (503) is fixedly connected to the input end of the second water pump (502); and the output end of the second water pump (502) is fixedly connected to the liquid outlet pipe (504).

6. The high-efficiency water-sand separation process according to claim 1, characterized in that: The outer side of the primary screen (304) is slidably connected to the inner side of the separation box (2), and the size of the primary screen (304) is consistent with the inner diameter of the separation box (2).

7. The high-efficiency water-sand separation process according to claim 1, characterized in that: The outer side of the secondary screen (308) is slidably connected to the inner side of the separation box (2), the size of the secondary screen (308) is consistent with the inner diameter of the separation box (2), and the mesh diameter of the primary screen (304) is larger than the mesh diameter of the secondary screen (308).

8. The high-efficiency water-sand separation process according to claim 1, characterized in that: The push plate (307) is slidably connected to the rectangular groove (301), and the size of the push plate (307) is consistent with the size of the rectangular groove (301).

9. The high-efficiency water-sand separation process according to claim 5, characterized in that: The liquid inlet pipe (503) passes through the front bottom of the separation box (2) and is in communication with the interior of the separation box (2), and the other end of the liquid outlet pipe (504) is in communication with the cleaning box (501).

10. The high-efficiency water-sand separation process according to claim 2, characterized in that: The pressure of the shower head (315) is set to 0.6 MPa.

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