Mobile continuous dehydration ore pulp thickening equipment and process
By designing mobile continuous dehydrated slurry thickening equipment, using track chassis and multiple systems to work together, the rapid dense tailings is achieved, and the problems of large equipment investment, high maintenance costs and low filtration efficiency in existing tailings treatment technologies are solved, the treatment costs and storage sites are reduced, and the comprehensive utilization efficiency of tailings is improved.
Patent Information
- Application Number
- CN202510203983.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2025-04-15
AI Technical Summary
The existing tailings treatment technology has the problems of large equipment investment, high maintenance costs, and low filtration efficiency of fine-grained slurry at low concentration, resulting in high storage costs and unstable reservoirs.
A mobile continuous dehydration slurry thickening equipment is designed, including a track chassis, slurry tank, clean water tank, thickening machine, dual power system, slurry feeding system, pneumatic pressurization system, drainage system and PLC control system. Through continuous slurry feeding and pneumatic pressurization dehydration, the rapid dense slurry is achieved.
Without changing the existing slurry conveying system, the rapid continuous and dense slurry is achieved, which reduces tailings treatment costs, reduces storage sites, improves the comprehensive utilization efficiency of tailings, and protects the ecological environment.
Smart Images

Figure CN119819000A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of mine tailings storage, and in particular to a mobile continuous dewatering pulp thickening device and process. Background Art
[0002] Traditional tailings treatment mostly adopts the wet stacking method, which is characterized by simple operation, large storage area, and easy to cause environmental and land pollution. With the continuous improvement of mine production efficiency and output, the tailings storage capacity is gradually decreasing, the land for new storage is tight and the investment cost is high, and the contradiction between production and storage is becoming more and more obvious and difficult to resolve.
[0003] In the existing technology, dry stacking technology, as a new method of tailings treatment, has not been widely used in China. Through the investigation of dry stacking technology at home and abroad, it is found that the current dry stacking technology process mostly involves filter pressing the tailings slurry, and then transporting the dry material to the storage site by road or belt conveyor. There are large one-time investment in equipment, high maintenance and management costs during operation, and extremely low filter pressing efficiency and poor effect on low-concentration, fine-particle slurry, which ultimately affects the storage cost and pile stability.
[0004] Therefore, according to the current storage status of tailings ponds, there is a lack of mobile continuous dewatering slurry thickening equipment and processes that can solve the above problems without changing the existing slurry transportation method. Summary of the invention
[0005] The purpose of the present invention is to provide a mobile continuous dewatering slurry thickening equipment and process, which can quickly and continuously thicken the slurry to achieve dry discharge of all tailings without changing the existing slurry conveying system, reduce the storage space, and can be operated in groups of multiple units, with the characteristics of convenient and efficient mobile storage.
[0006] To achieve the above-mentioned object, the present invention provides a mobile continuous dewatering pulp thickening device, comprising a crawler chassis, a pulp trough and a clean water trough are provided in the middle of the crawler chassis, the pulp trough is connected to a pulp inlet pipe, and the clean water trough is connected to a water outlet pipe; A thickener is fixedly installed on the upper end of the slurry tank, and a dual power system, a slurry feeding system, a pneumatic pressurization system, a drainage system, a cleaning system and a PLC control system are arranged on the outer sides of the slurry tank and the clean water tank.
[0007] Preferably, the pulp feeding system, the pneumatic pressurizing system and the thickener are each provided with two sets, A and B, and are electrically connected to the PLC control system accordingly.
[0008] Preferably, the dual power system includes a diesel engine hydraulic transmission system arranged at one end of the crawler chassis and an electric hydraulic working system arranged on the side of the clean water tank, and the electric hydraulic working system is electrically connected to the thickening machine.
[0009] Preferably, the slurry feeding system comprises a slurry pump, an inner circulation pneumatic pipe clamp valve and a slurry pneumatic pipe clamp valve arranged on both sides of the slurry tank, the slurry pump comprises a B-side slurry pump and an A-side slurry pump, the inner circulation pneumatic pipe clamp valve comprises a B-side inner circulation pneumatic pipe clamp valve and an A-side inner circulation pneumatic pipe clamp valve, and the slurry pneumatic pipe clamp valve comprises a B-side slurry pneumatic pipe clamp valve and an A-side slurry pneumatic pipe clamp valve; One end of the B-side slurry pump is connected to the slurry tank through a pipeline, the other end of the B-side slurry pump is connected to the B-side internal circulation pneumatic pipe clamp valve through a pipeline, and the other end of the B-side slurry pump is connected to the B-side slurrying pneumatic pipe clamp valve through a pipeline.
[0010] Preferably, the pneumatic pressurization system includes an air compressor, an air storage tank, a pneumatic pressurization ball valve and a pressure relief ball valve, the pneumatic pressurization ball valve and the pressure relief ball valve are both arranged on the pipeline, the pneumatic pressurization ball valve includes an A-side pneumatic pressurization ball valve and a B-side pneumatic pressurization ball valve, and the pressure relief ball valve includes an A-side pressure relief ball valve and a B-side pressure relief ball valve.
[0011] Preferably, the PLC control system includes a PLC controller, an electromagnetic pneumatic valve, a pressure sensor, a cylinder magnetic switch, and a water level sensor. The electromagnetic pneumatic valve is arranged on the side of the internal circulation pneumatic pipe clamp valve, the side of the slurrying pneumatic pipe clamp valve, the pneumatic pressurized ball valve and the pressure relief ball valve. The pressure sensor is arranged on the pipeline of the slurry inlet system. The pressure sensor includes an A-side pressure sensor and a B-side pressure sensor. The water level sensor is arranged in the middle position of the clean water tank.
[0012] Preferably, the thickener comprises a B-side thickener and an A-side thickener, and the slurry feeding system and the pneumatic pressurization system are respectively connected to the B-side thickener and the A-side thickener.
[0013] Preferably, the drainage system includes a sewage pump, and the outlet pipe is connected to the sewage pump; The cleaning system comprises a water pump, a pneumatic gate valve and a spray head, wherein the water pump is arranged in the clean water tank, the water pump is connected with the spray head through a pipeline, and the pneumatic gate valve is arranged on the pipeline; The pneumatic gate valve includes an A-side pneumatic gate valve and a B-side pneumatic gate valve, the A-side pneumatic gate valve and the B-side pneumatic gate valve are respectively connected to the spray head, and the A-side pneumatic gate valve and the B-side pneumatic gate valve are respectively electrically connected to the PLC controller.
[0014] To achieve the above object, the present invention also provides a mobile continuous dewatering pulp thickening process, comprising the following steps: S1, slurry feeding system starts slurry feeding: PLC controller controls the electromagnetic pneumatic valve to open and open the pneumatic pipe clamp valve on the A side; S2, tailings slurry dewatering and thickening machine and S1 are fed into the thickener for slurry thickening at the same time: start the slurry pump on the A side at the same time, and the slurry enters the thickener on the A side through the slurry inlet pipe for dewatering and thickening; S3. After reaching the preset pressure or time, switch the slurry feeding system to internal circulation: the real-time pressure in the thickener on the A side transmits the pressure signal back to the PLC controller through the pressure sensor. After the pressure reaches the preset value, the PLC controller controls the electromagnetic pneumatic valve to open the pneumatic pipe clamp valve on the A side for internal circulation, and the slurry enters the slurry tank for internal circulation; S4, the pneumatic pressurization system starts to add high-pressure gas to the inner chamber of the filter plate: the PLC controller controls the electromagnetic pneumatic valve to open, opens the pneumatic pipe clamp valve on the B side, and starts the slurry pump on the B side at the same time. The slurry enters the thickener on the B side through the pipeline for dehydration and thickening. The PLC controller controls the electromagnetic pneumatic valve to open the pneumatic pressurization ball valve on the A side, and the high-pressure gas enters the inner chamber of the thickener on the A side through the pipeline for pressurization and dehydration; S5. After the preset time is reached, the pneumatic pressurizing system switches to deflate the inner chamber of the filter plate to a pressure of 0: After the preset time is reached, the PLC controller closes the pneumatic pressurizing ball valve on side A and opens the pressure relief ball valve on side A to release the pressure in the dense chamber on side A; S6, open plate and discharge: When the pressure sensor on side A indicates 0, the PLC controller controls the thickener on side A to open the cavity and discharge the material, and the belt conveyor transports the dry material out; S7, cleaning the filter plate: the PLC controller opens the pneumatic gate valve on the A side through the electromagnetic pneumatic valve, starts the water pump, and sprays the cleaning head to clean the filter plate of the thickener on the A side; S8, repeat the above steps S1 to S7: after cleaning, close the mold and continue to repeat the above steps S1 to S7.
[0015] Preferably, the time taken for steps S1 to S3 is equal to the time taken for steps S4 to S8.
[0016] Therefore, the present invention adopts the above-mentioned mobile continuous dewatering pulp thickening equipment and process, and the beneficial effects are as follows: (1) The present invention realizes dry discharge of tailings quickly and continuously without changing the existing slurry conveying system, which greatly reduces the cost of tailings treatment. It can be operated in groups of multiple units, and has the characteristics of convenient and efficient mobile storage, which speeds up the comprehensive utilization of tailings in the production of building materials, soil improvement, etc.
[0017] (2) The present invention can reduce the storage area, reduce the amount of tailings entering the tailings pond, extend the service life of the tailings pond, protect the local ecological environment, and reduce pollution to the soil and water.
[0018] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1It is a right view of an embodiment of a mobile continuous dewatering pulp thickening device of the present invention; Figure 2 It is a top view of an embodiment of a mobile continuous dewatering pulp thickening device of the present invention; Figure 3 It is a left view of an embodiment of a mobile continuous dewatering pulp thickening device of the present invention; Figure 4 The present invention is a mobile continuous dewatering pulp thickening equipment Figure 1 A partial enlarged view of .
[0020] Reference numerals 1. Crawler chassis; 2. PLC control system; 3. Sewage pump; 4. Pneumatic pipe clamp valve for internal circulation on side B; 5. Slurry pump on side B; 6. Air compressor; 7. Air storage tank; 8. Pneumatic pressurized ball valve on side B; 9. Pneumatic pressurized ball valve on side A; 10. Thickener on side B; 11. Thickener on side A; 12. Hydraulic transmission system of diesel engine; 13. Pressure sensor on side B; 14. Pressure sensor on side A; 15. Pneumatic pipe clamp valve for slurry application on side B; 16. Slurry tank ; 17. Clean water tank; 18. Water level sensor; 19. Electric hydraulic working system; 20. Slurry pump on side A; 21. Slurry inlet pipe; 22. Water outlet pipe; 23. Pneumatic pipe clamp valve for internal circulation on side A; 24. Pneumatic pipe clamp valve for slurry application on side A; 25. Pressure relief ball valve on side A; 26. Pressure relief ball valve on side B; 27. Solenoid pneumatic valve; 28. Cylinder magnetic switch; 29. Water pump; 30. Pneumatic gate valve on side A; 31. Pneumatic gate valve on side B; 32. Spray head. DETAILED DESCRIPTION
[0021] The technical solution of the present invention is further described below through the accompanying drawings and embodiments.
[0022] Unless otherwise defined, technical or scientific terms used in the present invention shall have the common meanings understood by one having ordinary skills in the field to which the present invention belongs.
[0023] Embodiment 1 A mobile continuous dewatering pulp thickening equipment comprises a crawler chassis 1, wherein a pulp tank 16 and a clean water tank 17 are arranged in the middle of the crawler chassis 1, wherein the pulp tank 16 is connected to a pulp inlet pipe 21, and the clean water tank 17 is connected to a water outlet pipe 22. A thickener is fixedly installed on the upper end of the pulp tank 16 for dewatering tailings pulp. A dual power system, a pulp inlet system, a pneumatic pressurizing system, a drainage system, a cleaning system and a PLC control system 2 are arranged outside the pulp tank 16 and the clean water tank 17. The pulp inlet system, the pneumatic pressurizing system and the thickener are divided into two sets, A and B, and are electrically connected to the PLC control system 2 accordingly. That is, the thickener used for dewatering tailings pulp comprises a B-side thickener 10 and an A-side thickener 11. Taking the A-side thickener 11 as an example, the A-side thickener 11 can realize the dewatering of tailings pulp by forming an inner chamber for the filter plate.
[0024] Specifically, the dual power system includes a diesel engine hydraulic transmission system 12 arranged at one end of the crawler chassis 1 and an electric hydraulic working system 19 arranged on the side of the clean water tank 17. The diesel engine hydraulic transmission system 12 is used for equipment movement, and the electric hydraulic working system 19 is electrically connected to the thickening machine to provide working power for the thickening machine.
[0025] The slurry feeding system includes a slurry pump, an internal circulation pneumatic pipe clamp valve and a slurry pneumatic pipe clamp valve arranged on both sides of the slurry tank 16. The slurry pump includes a B-side slurry pump 5 and an A-side slurry pump 20. The internal circulation pneumatic pipe clamp valve includes a B-side internal circulation pneumatic pipe clamp valve 4 and an A-side internal circulation pneumatic pipe clamp valve 23. The slurry pneumatic pipe clamp valve includes a B-side slurry pneumatic pipe clamp valve 15 and an A-side slurry pneumatic pipe clamp valve 24. One end of the B-side slurry pump 5 is connected to the slurry tank 16 through a pipeline, and the other end is connected to the B-side internal circulation pneumatic pipe clamp valve 4 through a pipeline. At the same time, the other end of the B-side slurry pump 5 is connected to the B-side slurry pneumatic pipe clamp valve 15 through a pipeline. The same applies to the A side.
[0026] The pneumatic pressurization system includes an air compressor 6, an air storage tank 7, a pneumatic pressurization ball valve and a pressure relief ball valve. The pneumatic pressurization ball valve and the pressure relief ball valve are both arranged on the pipeline. The pneumatic pressurization ball valve includes an A-side pneumatic pressurization ball valve 9 and a B-side pneumatic pressurization ball valve 8. The pressure relief ball valve includes an A-side pressure relief ball valve 25 and a B-side pressure relief ball valve 26.
[0027] The PLC control system 2 includes a PLC controller (not marked in the figure), an electromagnetic pneumatic valve 27, a pressure sensor, a cylinder magnetic switch 28, and a water level sensor 18. Specifically, the sides of the internal circulation pneumatic pipe clamp valve and the sizing pneumatic pipe clamp valve are both provided with an electromagnetic pneumatic valve 27, which controls the opening and closing of the internal circulation pneumatic pipe clamp valve and the sizing pneumatic pipe clamp valve by controlling the action of the cylinder; similarly, the pneumatic pressurizing ball valve and the pressure relief ball valve are both provided with an electromagnetic pneumatic valve 27 to control their opening and closing.
[0028] The pressure sensor is arranged on the pulp inlet pipe 21, and includes an A-side pressure sensor 14 and a B-side pressure sensor 13. The A-side pressure sensor 14 and the B-side pressure sensor 13 are respectively at the rear end of the pulp inlet system on the A and B sides, followed by the end of the pulp inlet system - the thickener. The A-side pressure sensor 14 is electrically connected to the A-side thickener 11, and the B-side pressure sensor 13 is electrically connected to the B-side thickener 10, for detecting the pressure in the chamber.
[0029] The cylinder magnetic switch 28 is arranged outside each cylinder to detect the opening and closing position of the cylinder piston. The water level sensor 18 is arranged in the middle of the clean water tank 17 to detect the feedback water level height and control the start and stop of the sewage pump 3.
[0030] The slurry feeding system and the pneumatic pressurizing system are respectively connected to the thickener 10 on the B side and the thickener 11 on the A side. That is, the slurry pump 20 on the A side, the pneumatic pipe clamp valve 23 on the A side, the pneumatic pipe clamp valve 24 on the A side, the pneumatic pressurizing ball valve 9 on the A side and the pressure relief ball valve 25 on the A side are all connected to the thickener 11 on the A side, and the slurry pump 5 on the B side, the pneumatic pipe clamp valve 4 on the B side, the pneumatic pipe clamp valve 15 on the B side, the pneumatic pressurizing ball valve 8 on the B side and the pressure relief ball valve 26 on the B side are all connected to the thickener 10 on the B side, so as to realize continuous operation.
[0031] The drainage system includes a sewage pump 3, and the outlet pipe 22 is connected to the sewage pump 3. The sewage generated during the thickening process enters the clean water tank 17. When the water level in the clean water tank 17 reaches the preset water level, the sewage pump 3 is started to ensure that the sewage is quickly discharged from the system. The cleaning system includes a water pump 29, a pneumatic gate valve and a spray head 32. The water pump 29 is arranged in the clean water tank 17, and the water pump 29 is connected to the spray head 32 through a pipeline. The pneumatic gate valve is arranged on the pipeline; and the pneumatic gate valve includes an A-side pneumatic gate valve 30 and a B-side pneumatic gate valve 31. The A-side pneumatic gate valve 30 and the B-side pneumatic gate valve 31 are respectively connected to the spray head 32. The A-side pneumatic gate valve 30 and the B-side pneumatic gate valve 31 are respectively electrically connected to the PLC controller, and are respectively used for cleaning the A-side thickener 11 and the B-side thickener 10.
[0032] Embodiment 2 Using the equipment of Example 1, a mobile continuous dewatering slurry thickening construction process, the steps are as follows: S1, slurry feeding system starts slurry feeding: PLC controller controls the electromagnetic pneumatic valve 27 to open and opens the pneumatic pipe clamp valve 24 on the A side; S2, tailings slurry dewatering and thickening machine and S1 are simultaneously fed into the slurry thickening machine: the A side slurry pump 20 is started at the same time, and the slurry enters the A side thickener 11 through the slurry inlet pipe 21 for dewatering and thickening; S3, after reaching the preset pressure or time, the slurry feeding system is switched to internal circulation: the real-time pressure in the thickener 11 on the A side transmits the pressure signal back to the PLC controller through the pressure sensor 14 on the A side. After the pressure reaches the preset value, the PLC controller controls the electromagnetic pneumatic valve 27 to open the pneumatic pipe clamp valve 23 on the A side internal circulation, and the slurry enters the slurry tank 16 to realize internal circulation; S4, the pneumatic pressurization system is started to add high-pressure gas to the inner chamber of the filter plate: the PLC controller controls the electromagnetic pneumatic valve 27 to open, opens the pneumatic pipe clamp valve 15 on the B side, and starts the slurry pump 5 on the B side at the same time, and the slurry enters the thickener 10 on the B side through the pipeline for dehydration and thickening. The PLC controller controls the electromagnetic pneumatic valve 27 to open the pneumatic pressurization ball valve 9 on the A side, and the high-pressure gas enters the inner chamber of the thickener 11 on the A side through the pipeline for pressurization and dehydration; S5. After the preset time is reached, the pneumatic pressurizing system switches to deflate the inner chamber of the filter plate to a pressure of 0: After the preset time is reached, the PLC controller closes the pneumatic pressurizing ball valve 9 on the A side and opens the pressure relief ball valve 25 on the A side to release the pressure in the dense chamber on the A side; S6, open the plate to discharge the material: when the pressure sensor indicates 0, the PLC controller controls the thickener 11 on the A side to open the cavity to discharge the material, and the belt conveyor transports the dry material out; S7, cleaning the filter plate: the PLC controller opens the pneumatic gate valve 30 on the A side through the electromagnetic pneumatic valve 27, starts the water pump 29, and the spray head 32 cleans the filter plate of the thickener 11 on the A side; S8, repeat the above steps S1~S7: After cleaning, close the mold and continue to repeat the above steps S1~S7. The PLC controller repeats the pneumatic pressurization step on the A side, keeping one side of the slurry pump on both sides A and B always supplying slurry, and the slurry on the other side circulates in the slurry tank 16, while one side is pneumatically pressurized and dehydrated, and the A and B sides cycle to continuously feed and discharge slurry. That is, the two systems A and B are independently controlled by PLC, and the time used for steps S1~S3 is equal to the time used for steps S4~S8. When the A side reaches the process of "starting the pneumatic pressurization system to add high-pressure gas to the inner chamber of the filter plate", the B side starts the process of "starting the slurry feeding system to feed slurry".
[0033] Therefore, the present invention adopts the above-mentioned mobile continuous dewatering slurry thickening equipment and process, and without changing the existing slurry conveying system, it can quickly and continuously thicken the slurry to achieve dry discharge of all tailings, reduce the storage space, and can be operated in groups of multiple units, with the characteristics of convenient and efficient mobile storage.
[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.
Claims
1. A mobile continuous dewatering pulp thickening device, characterized in that: It comprises a crawler chassis, wherein a slurry tank and a clean water tank are arranged in the middle of the crawler chassis, wherein the slurry tank is connected to a slurry inlet pipe, and the clean water tank is connected to a water outlet pipe; A thickener is fixedly installed on the upper end of the slurry tank, and a dual power system, a slurry feeding system, a pneumatic pressurization system, a drainage system, a cleaning system and a PLC control system are arranged on the outer sides of the slurry tank and the clean water tank.
2. The mobile continuous dewatering pulp thickening equipment according to claim 1, characterized in that: The pulp feeding system, the pneumatic pressurizing system and the thickener are all provided with two sets, A and B, and are electrically connected to the PLC control system accordingly.
3. The mobile continuous dewatering pulp thickening equipment according to claim 1, characterized in that: The dual power system includes a diesel engine hydraulic transmission system arranged at one end of the crawler chassis and an electric hydraulic working system arranged on the side of the clean water tank, and the electric hydraulic working system is electrically connected to the thickening machine.
4. The mobile continuous dewatering pulp thickening equipment according to claim 1, characterized in that: The slurry feeding system includes a slurry pump, an internal circulation pneumatic pipe clamp valve and a slurry pneumatic pipe clamp valve arranged on both sides of the slurry tank, the slurry pump includes a B-side slurry pump and an A-side slurry pump, the internal circulation pneumatic pipe clamp valve includes a B-side internal circulation pneumatic pipe clamp valve and an A-side internal circulation pneumatic pipe clamp valve, and the slurry pneumatic pipe clamp valve includes a B-side slurry pneumatic pipe clamp valve and an A-side slurry pneumatic pipe clamp valve; One end of the B-side slurry pump is connected to the slurry tank through a pipeline, the other end of the B-side slurry pump is connected to the B-side internal circulation pneumatic pipe clamp valve through a pipeline, and the other end of the B-side slurry pump is connected to the B-side slurrying pneumatic pipe clamp valve through a pipeline.
5. The mobile continuous dewatering pulp thickening equipment according to claim 1, characterized in that: The pneumatic pressurization system includes an air compressor, an air storage tank, a pneumatic pressurization ball valve and a pressure relief ball valve. The pneumatic pressurization ball valve and the pressure relief ball valve are both arranged on the pipeline. The pneumatic pressurization ball valve includes an A-side pneumatic pressurization ball valve and a B-side pneumatic pressurization ball valve. The pressure relief ball valve includes an A-side pressure relief ball valve and a B-side pressure relief ball valve.
6. The mobile continuous dewatering pulp thickening equipment according to claim 1, characterized in that: The PLC control system includes a PLC controller, an electromagnetic pneumatic valve, a pressure sensor, a cylinder magnetic switch, and a water level sensor. The electromagnetic pneumatic valve is arranged on the side of the internal circulation pneumatic pipe clamp valve, the side of the slurry pneumatic pipe clamp valve, the pneumatic pressurized ball valve and the pressure relief ball valve. The pressure sensor is arranged on the slurry inlet pipeline. The pressure sensor includes an A-side pressure sensor and a B-side pressure sensor. The water level sensor is arranged in the middle position of the clean water tank.
7. The mobile continuous dewatering pulp thickening equipment according to claim 6, characterized in that: The thickener comprises a B-side thickener and an A-side thickener, and the slurry feeding system and the pneumatic pressurizing system are respectively connected to the B-side thickener and the A-side thickener.
8. The mobile continuous dewatering pulp thickening equipment according to claim 7, characterized in that: The drainage system includes a sewage pump, and the outlet pipe is connected to the sewage pump; The cleaning system comprises a water pump, a pneumatic gate valve and a spray head, wherein the water pump is arranged in the clean water tank, the water pump is connected with the spray head through a pipeline, and the pneumatic gate valve is arranged on the pipeline; The pneumatic gate valve includes an A-side pneumatic gate valve and a B-side pneumatic gate valve, the A-side pneumatic gate valve and the B-side pneumatic gate valve are respectively connected to the spray head, and the A-side pneumatic gate valve and the B-side pneumatic gate valve are respectively electrically connected to the PLC controller.
9. A mobile continuous dewatering pulp thickening process, using the mobile continuous dewatering pulp thickening equipment according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1, slurry feeding system starts slurry feeding: PLC controller controls the electromagnetic pneumatic valve to open and open the pneumatic pipe clamp valve on the A side; S2, tailings slurry dewatering and thickening machine and S1 are fed into the thickener for slurry thickening at the same time: start the slurry pump on the A side at the same time, and the slurry enters the thickener on the A side through the slurry inlet pipe for dewatering and thickening; S3. After reaching the preset pressure or time, switch the slurry feeding system to internal circulation: the real-time pressure in the thickener on the A side transmits the pressure signal back to the PLC controller through the pressure sensor. After the pressure reaches the preset value, the PLC controller controls the electromagnetic pneumatic valve to open the pneumatic pipe clamp valve on the A side for internal circulation, and the slurry enters the slurry tank for internal circulation; S4, the pneumatic pressurization system starts to add high-pressure gas to the inner chamber of the filter plate: the PLC controller controls the electromagnetic pneumatic valve to open, opens the pneumatic pipe clamp valve on the B side, and starts the slurry pump on the B side at the same time. The slurry enters the thickener on the B side through the pipeline for dehydration and thickening. The PLC controller controls the electromagnetic pneumatic valve to open the pneumatic pressurization ball valve on the A side, and the high-pressure gas enters the inner chamber of the thickener on the A side through the pipeline for pressurization and dehydration; S5. After the preset time is reached, the pneumatic pressurizing system switches to deflate the inner chamber of the filter plate to a pressure of 0: After the preset time is reached, the PLC controller closes the pneumatic pressurizing ball valve on side A and opens the pressure relief ball valve on side A to release the pressure in the dense chamber on side A; S6, open plate and discharge: When the pressure sensor on side A indicates 0, the PLC controller controls the thickener on side A to open the cavity and discharge the material, and the belt conveyor transports the dry material out; S7, cleaning the filter plate: the PLC controller opens the pneumatic gate valve on the A side through the electromagnetic pneumatic valve, starts the water pump, and sprays the cleaning head to clean the filter plate of the thickener on the A side; S8, repeat the above steps S1 to S7: after cleaning, close the mold and continue to repeat the above steps S1 to S7.
10. A mobile continuous dewatering pulp thickening process according to claim 9, characterized in that: The time taken for steps S1 to S3 is equal to the time taken for steps S4 to S8.
Citation Information
Patent Citations
Movable continuous dehydration ore pulp thickening equipment
CN223901313U
Cited By
Uninterrupted ore pulp dewatering and paving equipment
CN121322022A