Centralized processing system after metering of coal water in bottom-drainage roadway punching

Abstract

The utility model discloses a centralized processing system after metering of coal water for bottom drainage roadway punching, and belongs to the technical field of coal mine equipment. Comprising a metering device for metering the solid content in coal water, and the output end of the metering device is communicated to a primary coal-water separation device through a pipeline; a coal-water buffer tank of the coal-water primary separation device is communicated to the coal-water secondary separation device through a filter pressing pump assembly; and a coal slime transfer device is arranged below the primary coal-water separation device and the secondary coal-water separation device. On the basis of the principle that coal water does not fall to the ground, the coal water flushed out is conveyed in a pipeline closed mode, the coal water cannot be seen in a roadway, a drainage system cannot be blocked, and the roadway is kept clean and tidy; according to the metering device, the detection unit is matched with the PLC for combined operation, particle loss is avoided, intelligent, rapid and accurate metering of the coal content of punching coal water is achieved, the punching efficiency is improved, the number of personnel operation procedures is reduced, and data visualization is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine equipment, in particular to a centralized processing system for measuring coal and water after punching holes in a bottom pumping lane. Background Art

[0002] In the process of pre-extraction measures of through-layer drilling in high-gas mines, hydraulic punching is often used to relieve pressure and increase permeability. The amount of coal punched out of a single hole is an important indicator to measure the punching quality of the hole. Accurately measuring it becomes the key to the operation process.

[0003] At present, the most commonly used metering method in various mines is the self-made filter type metering pool. The perforated coal water flows into the metering pool through the blowout prevention box for natural sedimentation and filtration. The full pool is used as a metering unit. After metering, the coal slurry is manually shoveled onto a belt or scraper for transportation, which is labor-intensive. In addition, the self-made filter type needs to be emptied frequently before the next metering process can be carried out. Therefore, the metering efficiency is low. At the same time, a large amount of particle loss causes poor metering accuracy.

[0004] In addition, the coal water filtered out by the homemade filter flows into the water tank through the drainage ditch by gravity. During the gravity flow, large particles quickly precipitate and cause blockage in the ditch, and smaller particles cannot completely settle before entering the water tank, which causes the water tank to accumulate rapidly in a short period of time; thereby reducing the effective capacity of the water tank, affecting the production safety underground, and frequent cleaning of the sedimentation tank and water tank is required to ensure the effective capacity of the water tank.

[0005] At present, some coal mines still retain the traditional manual cleaning method, which is to manually dig out the deposited coal slime into the mine car and then transport it out; some coal mines use mechanical cleaning, which is to first add water to break up the deposited coal slime and then transport it to a designated location for treatment. The complex process requires a large amount of manpower and equipment, with high costs and low efficiency. The workload of water tank cleaning continues unabated and the cleaning difficulty is high. Utility Model Content

[0006] The purpose of the utility model is to solve the problems in the prior art that the coal and water metering operation of the bottom pumping tunnel punching hole is cumbersome, the labor intensity is high, the metering efficiency is low, and the manual clearance is required, the process is complicated, the workload is large, and the cleaning difficulty is high, and a centralized processing system after the coal and water metering of the bottom pumping tunnel punching hole is proposed.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A centralized treatment system for coal-water metering after punching holes in a bottom extraction lane, comprising a metering device for measuring the solid content in coal-water, wherein the output end of the metering device is connected to a primary coal-water separation device through a pipeline; the coal-water buffer tank of the primary coal-water separation device is connected to a secondary coal-water separation device through a filter press pump assembly;

[0009] A coal slime transfer device is arranged below the primary coal-water separation device and the secondary coal-water separation device.

[0010] In some embodiments, the metering device, the primary coal-water separation device, the filter press pump assembly, the secondary coal-water separation device, and the coal slime transfer device are communicatively connected to the electric control box.

[0011] In some embodiments, the electric control box is communicatively connected to a host computer.

[0012] In some embodiments, the metering device is composed of a pulping assembly, a metering and conveying assembly, and a control assembly arranged on a supporting frame.

[0013] In some embodiments, the coal-water primary separation device is composed of: a sieve body arranged on a sieve body support, a vibrator located on the sieve body, and a coal-water buffer box located below the sieve body.

[0014] In some embodiments, a material distribution box is further provided above the screen body.

[0015] In some embodiments, the filter press pump assembly is composed of a motor, a bearing seat and a pump head arranged on a mounting seat.

[0016] In some embodiments, the coal-water secondary separation device is a filter press.

[0017] In some embodiments, the coal slime transporting device is a belt conveyor or a scraper conveyor.

[0018] Compared with the prior art, the utility model provides a centralized treatment system for coal and water metering after bottom pumping tunnel punching, which has the following beneficial effects.

[0019] 1. The utility model, based on the principle that coal and water do not fall to the ground, conducts closed pipeline transportation of the flushed coal and water, keeps the tunnel free of coal and water, does not cause clogging of the drainage system, and keeps the tunnel clean; the metering device adopts a detection unit and a PLC for joint calculation, without particle loss, to achieve intelligent, fast and accurate measurement of the coal content of the punched coal and water, improve the drilling efficiency, reduce the operating procedures of personnel, and visualize the data; the method of crushing and pulping first and then metering is adopted to ensure the uniformity of particles, improve the accuracy of metering and the reliability of transportation.

[0020] 2. The utility model adopts a multi-point metering and conveying treatment process, and a multi-stage solid-liquid separation mode is concentrated at a designated location, which reduces the number of bottom pumping equipment and ensures the effective use of on-site space; the coal cakes treated by this process meet the conditions for direct external discharge and can generate direct economic benefits; the water treated by this process has an extremely low solid content, which meets the industrial water standard and can be recycled underground; the treated water can also be directly discharged into the water tank, meeting the goal of "clean water into the tank", extending the tank clearing cycle, and maintaining the effective capacity of the water tank for a long time.

[0021] Other advantages, objectives and features of the present invention will be described in the following description to some extent; and will be apparent to those skilled in the art based on the following examination and study to some extent; or, may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is an overall schematic diagram of the utility model.

[0023] Figure 2 It is a schematic diagram of the structure of the metering device.

[0024] Figure 3 This is a schematic diagram of the structure of the primary coal-water separation device.

[0025] Figure 4 It is a structural schematic diagram of the filter press pump assembly.

[0026] Figure 5 This is a schematic diagram of the structure of the secondary coal-water separation device.

[0027] Figure 6 It is a cross-sectional view of the pulping assembly.

[0028] In the figure:

[0029] 1. Measuring device;

[0030] 11. Support frame; 12. Pulping assembly; 13. Metering and conveying assembly; 14. Control assembly; 15. Power assembly;

[0031] 121, sieve plate; 122, rotor disc; 123, discharge port; 124, rotor shaft; 126, bushing; 127, feed port; 128, hammer head;

[0032] 2. Coal-water primary separation device;

[0033] 21. material distribution box; 22. screen body; 23. vibration exciter; 24. vibration damping spring; 25. coal and water buffer box; 26. screen body support;

[0034] 3. Filter press pump assembly;

[0035] 31. Motor; 32. Bearing seat; 33. Pump head; 34. Mounting seat;

[0036] 4. Secondary coal-water separation device;

[0037] 41. Filter press support; 42. Fixed plate; 43. Filter plate; 44. Moving plate; 45. Hydraulic cylinder; 46. Pull plate assembly; 47. Drain trough; 48. Pull plate trolley;

[0038] 5. Coal slime transfer device;

[0039] 6. Electric control box;

[0040] 7. Host computer;

[0041] 8. Pipeline. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0043] Reference Figure 1-5 A centralized treatment system for coal-water metering after punching holes in a bottom extraction tunnel comprises a metering device 1 for measuring the solid content in coal-water, the output end of the metering device 1 is connected to a primary coal-water separation device 2 through a pipeline 8; a coal-water buffer box 25 of the primary coal-water separation device 2 is connected to a secondary coal-water separation device 4 through a filter press pump assembly 3; at the same time, a coal slime transfer device 5 is arranged below the primary coal-water separation device 2 and the secondary coal-water separation device 4.

[0044] Specific:

[0045] The metering device 1 is arranged in the bottom extraction tunnel drilling site and is used in conjunction with the drilling rig in the drilling site; it is used to collect and transport the coal water from drilling and punching, and to measure the solid content in the coal water; then, the coal water is transported to the coal-water primary separation device 2;

[0046] The primary coal-water separation device 2 performs primary separation on the coal-water, filters out larger solid particles, and outputs them to the outside through the coal slime transport device 5; at the same time, the primary separated coal-water is pumped to the secondary coal-water separation device for further processing through the filter press pump assembly 3;

[0047] The coal-water secondary separation device 4 performs secondary solid-liquid separation on the coal-water after primary separation; the separated liquid is pumped to the water tank or directly transported to the ground; the separated solid is output to the outside through the coal slime transport device 5;

[0048] The coal slime transfer device is arranged below the primary coal-water separation device 2 and the secondary coal-water separation device 4 to centrally transfer the coal slimes separated from the primary and secondary solid-liquid separations to a designated location.

[0049] In some embodiments, the metering device 1 , the primary coal-water separation device 2 , the filter press pump assembly 3 , the secondary coal-water separation device 4 , and the coal slime transport device 5 are communicatively connected to the electric control box 6 .

[0050] Furthermore, the electric control box 6 is communicatively connected to the host computer 7 .

[0051] The electric control box 6 performs status detection and action control on the equipment; the host computer 7 displays the running status and data of the equipment.

[0052] In some embodiments, the metering device 1 is composed of a pulping assembly 12 , a metering and conveying assembly 13 , and a control assembly 14 which are arranged on a supporting frame 11 .

[0053] Furthermore, a crawler track is provided below the support frame 11 , and a power assembly 15 for providing hydraulic power to the crawler track is provided above the support frame 11 .

[0054] Among them, the pulping assembly 12 crushes the larger coal particles punched out by punching holes to facilitate metering and improve metering accuracy; the metering and conveying assembly 13 collects and conveys the characteristic quantities of coal slurry water after crushing and pulping; the control assembly 14 provides electrical power for the pulping assembly and the metering and conveying assembly, and calculates and displays the data collected by the metering and conveying system.

[0055] Specifically, the pulping assembly 12 is a pulping machine with a crushing component disposed therein; Figure 6 As shown, it is an existing device, which is fed from the feed port 127, and is provided with a hammer head 128 and a counter plate 129 inside; the motor drives the rotor through a V-belt, and the coal water is crushed due to the impact of the hammer head on the material during rotation; the rotor is composed of a rotor shaft 124, a hammer shaft, a hammer head 128 and other parts; the rotor shaft 124 is equipped with a rotor disk 122, and the disks are separated by a shaft sleeve 126, and the disk is equipped with a hammer shaft, and the hammer head 128 is suspended on the hammer shaft; when the rotor shaft rotates, the hammer rotates with the screen plate 121 to collide, rub and cut and crush the material, and then it is discharged from the discharge port 123. The metering and conveying assembly 13 includes a slurry pump and a conveying pipeline equipped with a concentration meter and a flow meter to collect the concentration and flow of coal slurry water. The control assembly 14 includes a control switch that provides power to the electrical components, and a control cabinet that calculates the data collected by the concentration meter and the flow meter, so as to realize the intelligent, fast and accurate measurement of the water content of the punched coal.

[0056] In some embodiments, the primary coal-water separation device 2 is composed of: a sieve body 22 disposed on a sieve body support 26 , a vibrator 23 located on the sieve body 22 , and a coal-water buffer box 25 located below the sieve body 22 .

[0057] Furthermore, a damping spring 24 is provided above the screen support 26 and connected to the connecting plate of the screen 22; the damping spring 24 supports the screen 22, so that the screen 22 vibrates regularly under the support of the spring, producing a solid-liquid separation effect.

[0058] Correspondingly, the vibrator 23 provides an exciting force for the screen body to complete the solid-liquid separation; the coal-water buffer box 25 is used to buffer the coal-water after the primary solid-liquid separation.

[0059] Furthermore, a distribution box 21 is provided above the screen body 22 ; the distribution box 21 evenly distributes the transported coal water onto the screen surface of the screen body 22 .

[0060] In some embodiments, the filter press pump assembly 3 is composed of a motor 31 , a bearing seat 32 and a pump head 33 which are arranged on a mounting seat 34 .

[0061] A connecting shaft is arranged in the bearing seat 32 to connect the motor 31 and the pump head 33 ; the motor 31 provides power for the filter press pump; the pump head 33 pumps out the coal water and increases the pressure, and delivers it to the coal-water secondary separation device 4 .

[0062] In some embodiments, the coal-water secondary separation device 4 is a filter press.

[0063] Specifically, the coal-water secondary separation device 4 includes:

[0064] The filter press support 41 is used to support and fix all the components on the coal-water secondary separation device 4;

[0065] The fixed plate 42 is fixedly mounted on one end of the filter press support 41 and is used to cooperate with the movable plate 44 to press the filter plate 43;

[0066] The filter plate 43 is movably mounted on the crossbeam of the filter press support 41 and is used for performing secondary solid-liquid separation of coal and water;

[0067] The movable plate 44 is fixedly mounted on the other end of the filter press support 41 and driven by a hydraulic cylinder 45 to cooperate with the fixed plate 42 and press the filter plate 43;

[0068] A hydraulic cylinder 45 is fixedly mounted on the filter press support 41 and is used to drive the moving plate 44;

[0069] The plate pulling assembly 46 is fixedly mounted on the leg beam of the filter press support 41, and cooperates with the plate pulling trolley 48 to pull the filter plate 43 back and forth;

[0070] The drainage trough 47 is fixedly mounted on the leg beam of the filter press support 41 and is used to collect the clean water discharged from the filter plate 43 during the filter press process;

[0071] The plate pulling trolley 48 is movably mounted on the crossbeam of the filter press support 41 and cooperates with the plate pulling assembly 46 to pull the filter plate 43 back and forth.

[0072] In some embodiments, the coal slime transporting device 5 is a belt conveyor or a scraper conveyor for transporting the coal slime.

[0073] During operation, the utility model collects and transports the coal and water from the punching holes in the bottom pumping tunnel first, and then transports them to a designated location for centralized treatment over a long distance after being measured. The metering process is real-time measurement, which is fast and accurate, and the coal and water are transported by pipeline, ensuring that the coal and water are not transported to the ground during the entire process, thus avoiding pollution of the tunnel and blockage in the ditch, and ensuring the tunnel environment and operation safety.

[0074] The utility model has at least the following advantages:

[0075] 1. Based on the principle that coal and water should not fall to the ground, the flushed coal and water are transported in a closed pipeline to keep the coal and water out of the tunnel, so as to avoid clogging the drainage system and keep the tunnel clean;

[0076] 2. The metering device uses a detection unit and PLC for joint calculation, without particle loss, to achieve intelligent, fast and accurate measurement of the water content of coal in the punching coal, improve the punching efficiency, reduce the operation process of personnel, and visualize the data;

[0077] 3. The method of crushing and pulping before metering is adopted to ensure the uniformity of particles and improve the accuracy of metering and the reliability of transportation;

[0078] 4. The treatment process adopts multi-point metering and transportation, and concentrates multi-stage solid-liquid separation at designated locations, reducing the number of bottom pumping equipment and ensuring effective use of on-site space;

[0079] 5. The coal cakes treated by this process meet the conditions for direct discharge and can generate direct economic benefits;

[0080] 6. The solid content of water treated by this process is extremely low, meeting the industrial water standards and can be recycled underground;

[0081] 7. The water treated by this process can also be directly discharged into the water tank, meeting the goal of "clean water entering the tank", extending the tank cleaning cycle, and maintaining the effective capacity of the water tank for a long time.

[0082] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0083] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0084] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A centralized treatment system for coal and water metering after bottom pumping tunnel punching, characterized in that: It comprises a metering device (1) for measuring the solid content in coal and water, wherein the output end of the metering device (1) is connected to a primary coal-water separation device (2) via a pipeline (8); the coal-water buffer tank (25) of the primary coal-water separation device (2) is connected to a secondary coal-water separation device (4) via a filter press pump assembly (3); A coal slime transfer device (5) is provided below the primary coal-water separation device (2) and the secondary coal-water separation device (4).

2. The bottom pumping tunnel punching coal water metering and centralized treatment system according to claim 1 is characterized in that: The metering device (1), the primary coal-water separation device (2), the filter press pump assembly (3), the secondary coal-water separation device (4), and the coal slime transfer device (5) are communicatively connected to the electric control box (6).

3. The bottom pumping tunnel punching coal water metering and centralized treatment system according to claim 2 is characterized in that: The electric control box (6) is communicatively connected to the host computer (7).

4. The bottom pumping tunnel punching coal water metering and centralized treatment system according to claim 1 is characterized in that: The metering device (1) is composed of a pulping assembly (12), a metering and conveying assembly (13), and a control assembly (14) which are arranged on a supporting frame (11).

5. The bottom pumping tunnel punching coal water metering and centralized treatment system according to claim 1 is characterized in that: The coal-water primary separation device (2) comprises: a sieve body (22) arranged on a sieve body support (26), an exciter (23) located on the sieve body (22), and a coal-water buffer box (25) located below the sieve body (22).

6. The bottom pumping tunnel punching coal water metering and centralized treatment system according to claim 5 is characterized in that: A material distribution box (21) is also provided above the screen body (22).

7. The bottom extraction tunnel punching coal water metering and centralized treatment system according to claim 1 is characterized in that: The filter press pump assembly (3) is composed of a motor (31), a bearing seat (32), and a pump head (33) arranged on a mounting seat (34).

8. The bottom pumping tunnel punching coal water metering and centralized treatment system according to claim 1 is characterized in that: The coal-water secondary separation device (4) is a filter press.

9. The bottom pumping tunnel punching coal water metering and centralized treatment system according to claim 1 is characterized in that: The coal slime transport device (5) is a belt conveyor or a scraper conveyor.

Images