A silo coal slurry collection apparatus

Abstract

This application discloses a silo coal slurry water collection device. In the silo coal slurry water collection device, the floor of the silo distribution room is equipped with a collection trough for collecting coal slurry water. A conveyor pump is installed inside the collection trough, and an insulation section is provided on the outside of the collection trough. A belt conveyor is installed on a trestle, the trestle surface is inclined, the top of the trestle surface is located inside the silo distribution room, and the bottom of the trestle surface extends to the drive chamber of the belt conveyor. A receiving section is located between the top and bottom of the trestle surface. A conveying pipe connects the conveyor pump and the receiving section, and a one-way control valve is installed on the conveying pipe to ensure that the coal slurry water in the collection trough is transported unidirectionally to the receiving section. The silo coal slurry water collection device provided by this application solves the safety problems in the prior art where coal slurry water in the silo distribution room freezes in low-temperature environments when flowing to the bottom of the silo through the downpipe, causing the downpipe to burst or fall. It maintains the normal flushing requirements of the silo coal slurry water and ensures that the environmental dust content meets environmental protection requirements.

Description

Technical Field

[0001] This application relates to the field of coal slurry water collection technology, and in particular to a coal slurry water collection device for silos. Background Technology

[0002] The coal unloading and storage unit of the thermal power plant has silos used as buffer facilities in the coal conveying system. Dust is generated during the unloading and transportation of raw coal and fuel coal, and long-term exposure to this dust can cause serious harm to the health of employees. When the coal unloading and storage unit was newly built in 2008, three pulse-jet bag filters were installed in the three silos. However, the placement of two of these filters was not ideal, and the coal dust collected by the filters was directly discharged onto the ground, requiring further treatment.

[0003] The silo distribution room is located at the top of the silo. Inside, there is a coal slurry washing water system. The coal slurry water formed after the coal powder is processed by the washing equipment, conveyor frame, and ground is collected by the floor drain in the silo distribution room and flows down the coal slurry water downpipe installed on the outer wall of the silo to the coal slurry water ditch at the bottom of the silo.

[0004] Because the coal slurry washing water is generated through intermittent, timed washing, the coal slurry water on the floor of the silo distribution room does not immediately drain away after washing and will continue to flow slowly and continuously down the floor. In the frigid winter weather of -20°C, the flow rate of coal slurry water flowing into the downpipe after washing decreases from high to low. This continuous small flow of water will continuously freeze inside the downpipe. As the ice accumulates, it gradually blocks the downpipe. The ice blocking the pipe further expands and bursts the downpipe. The downpipe falls down and hits the roof of the belt conveyor tensioning room on the silo floor, causing a leak in the roof. This situation poses a significant safety hazard.

[0005] Due to production and environmental protection needs, a large number of coal slurry drain pipes need to be replaced every year. Most of the frozen and cracked drain pipes are located at a height of 40-60 meters. A ring platform is installed every 10 meters along the outer wall of the silo, with nitrogen protection pipes mounted on these platforms. These ring platforms are quite narrow, only 1 meter wide, while the coal slurry drain pipes are vertically installed inside the ring platforms, close to the outer wall of the silo. Replacing these drain pipes cannot be done using cranes. Maintenance personnel have to cut the frozen and cracked pipes into 2-meter sections between the two platforms, then use hand-operated hoists to lift and weld each section before raising it upwards for replacement. This is the only way to replace the 10 meters of pipe between the two platforms. Because the platforms are narrow, only 2-3 people can stand beside the pipe, making the replacement time-consuming and labor-intensive. This results in more welds on the replaced pipes, further increasing the risk of leakage. Because the insulation layer was removed during pipe replacement, the original polyurethane foam insulation layer, which had a relatively good insulation effect, was gone. After the pipe replacement, only rock wool insulation and aluminum plates could be used for wrapping, resulting in poor insulation and making the pipes more susceptible to freezing and cracking in winter. As a result, a lot of materials and manpower were spent on replacing the pipes every year, but the performance was getting worse and worse.

[0006] To address the issues of downpipe freezing and leaks in winter, a steam heating pipe was installed inside the downpipe to prevent freezing. However, new problems arose during use. On the one hand, leaks in the steam pipe could not be repaired. On the other hand, coal slurry in the coal slurry water adhered to the outer wall of the steam pipe, and the amount of slurry accumulated, eventually causing the outer wall of the steam pipe to become increasingly thick, which not only affected heat transfer but also blocked the downpipe.

[0007] Due to the above-mentioned unfavorable factors, the normal use of coal slurry washing in silos has been hindered, and the environmental dust content index often fails to meet the standards. Summary of the Invention

[0008] The purpose of this application is to provide a coal slurry water collection device, which solves the safety problems in the prior art where coal slurry water in the silo distribution room freezes in low temperature environment when it flows to the bottom of the silo through the downpipe, causing the downpipe to expand, crack, or fall. This device maintains the normal flushing needs of the coal slurry water in the silo and ensures that the environmental dust content index meets environmental protection requirements.

[0009] This application provides a silo coal slurry water collection device, comprising: a silo distribution room, connected to and located on top of the silo, the floor of the silo distribution room having a water collection trough for collecting coal slurry water, a conveying pump being installed in the water collection trough, and an insulation section being provided on the outside of the water collection trough; a trestle, on which a belt conveyor is installed, the bridge surface of the trestle being inclined, the top of the bridge surface being located within the silo distribution room, the bottom of the bridge surface extending to the drive chamber of the belt conveyor, and a receiving section being provided between the top and bottom of the bridge surface; and a conveying pipe, connecting the conveying pump and the receiving section, the conveying pipe being equipped with a one-way control valve to allow the coal slurry water in the water collection trough to be conveyed unidirectionally to the receiving section.

[0010] Optionally, a water collection cavity is provided on the floor, a floor support beam is provided below the floor, the water collection trough is installed in the water collection cavity, and the side walls of the water collection trough are all connected to the support beam, which is connected to the floor support beam.

[0011] Optionally, the floor support beam includes a first sub-beam and a second sub-beam arranged opposite to each other. The support beam includes two support crossbeams and two support longitudinal beams respectively arranged on the four side walls of the water collection tank. The two ends of any one of the support crossbeams are respectively fixed to the first sub-beam and the second sub-beam. The two support longitudinal beams are arranged opposite to each other and are both connected between the two oppositely arranged support crossbeams.

[0012] Optionally, each end of the supporting beam is equipped with a connecting plate, and the two connecting plates are respectively attached to the first sub-beam and the second sub-beam.

[0013] Optionally, both the supporting crossbeam and the supporting longitudinal beam are attached to the bottom of the floor. The side of the supporting crossbeam and the supporting longitudinal beam connected to the water collection tank is provided with an insulation groove of the insulation part. The opening of the insulation groove is fastened to the side wall of the water collection tank to define an insulation cavity. The insulation part also includes an insulation shell located below the supporting crossbeam and the supporting longitudinal beam. Both the insulation cavity and the insulation shell are filled with insulation material.

[0014] Optionally, the insulation material is rock wool, which is fixed to the outside of the water collection tank by metal wires.

[0015] Optionally, the floor includes a recessed water collection inlet, the water collection cavity is located inside the water collection inlet, and the inner diameter of the water collection cavity gradually decreases in the direction away from the top surface of the floor.

[0016] Optionally, the floor is provided with an epoxy asphalt waterproof layer extending in a horizontal direction, and the inner side of the epoxy asphalt waterproof layer is sealed against the side wall of the water collection tank; a partition waterproof board is attached to the bottom of the epoxy asphalt waterproof layer, and the inner side of the partition waterproof board is sealed against the side wall of the water collection tank.

[0017] Optionally, a sieve plate is installed at the opening of the water collection tank, and a support frame is provided on the inner side of the tank wall, with the support frame supporting the sieve plate below.

[0018] Optionally, the receiving part is located behind the roller of the belt conveyor.

[0019] The above technical solution has the following beneficial effects:

[0020] The coal slurry water collection equipment provided in this application collects coal slurry water by setting up a water collection tank in the silo distribution room, and then transports the coal slurry water in the water collection tank to the receiving part of the trestle by a conveying pump and conveying pipe. Under the action of the inclined surface of the trestle, the coal slurry water flows by gravity to the drive room for unified treatment. The outside of the water collection tank is equipped with a heat preservation part to achieve the heat preservation effect. This solves the safety problems such as the expansion and cracking of the downpipe and the fall of the downpipe caused by the coal slurry water in the silo distribution room freezing in the low temperature environment when it flows to the bottom of the silo through the downpipe. It maintains the normal flushing needs of the coal slurry water in the silo distribution room 1 and ensures that the environmental dust content index meets the environmental protection requirements. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the silo distribution room in one embodiment of this application.

[0022] Figure 2 This is a schematic diagram of the structure of a silo coal slurry water collection device in one embodiment of this application.

[0023] Figure 3 for Figure 2 Cross-sectional view of AA.

[0024] Figure 4 for Figure 3 Cross-sectional view of CC.

[0025] Figure 5 for Figure 4 Cross-sectional view of DD.

[0026] Figure 6 for Figure 2 A magnified view of part B in the image.

[0027] Attached icon number

[0028] 1-Silo distribution room, 10-Floor, 100-Epoxy asphalt waterproof layer, 101-Waterproof partition board, 11-Floor support beam, 110-First sub-beam, 111-Second sub-beam, 112-Connecting bolt, 113-Anchoring adhesive, 114-Double nut with washer, 12-Water collection chamber, 13-Water collection port, 14-First grouting material, 15-Second grouting material.

[0029] 2-Water collection tank, 20-Support beam, 200-Support beam, 201-Support beam, 21-Connecting plate, 22-Support frame, 23-Epoxy resin anti-corrosion layer.

[0030] 3-Transfer pump.

[0031] 4-Insulation section, 40-Insulation tank, 41-Insulation shell, 42-Insulation material.

[0032] 5 - Pier, 50 - Bridge surface.

[0033] 6-Transfer pipe, 60-Main pipe, 61-Branch pipe, 610-One-way control valve, 611-Outlet gate valve, 612-Sewage gate valve.

[0034] 7-Sieve plate.

[0035] 8-Silo. Detailed Implementation

[0036] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0037] It is readily understood that, based on the technical solution of this invention, various structural and implementation methods can be interchanged by those skilled in the art without altering the essential spirit of the invention. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this invention and should not be considered as the entirety of the invention or as limitations or restrictions on the technical solution of the invention.

[0038] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the structures shown in the accompanying drawings. They are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0039] This application provides a silo coal slurry water collection device, including: a silo distribution room 1, a trestle 5, and a conveying pipe 6.

[0040] Please refer to Figures 1 to 2The silo distribution room 1 is connected to the silo 8 and is located on top of the silo 8. The floor 10 of the silo distribution room 1 is provided with a water collection tank 2 for collecting coal slurry water. A conveying pump 3 is installed in the water collection tank 2, and an insulation part 4 is provided on the outside of the water collection tank 2. In this embodiment, the conveying pump 3 can be a submersible pump.

[0041] A belt conveyor is installed on the trestle 5. The bridge surface 50 of the trestle 5 is inclined. The top of the bridge surface 50 is located inside the silo distribution room 1, and the bottom of the bridge surface 50 extends to the drive room of the belt conveyor. The drive equipment of the belt conveyor, such as the motor, is located inside the drive room. A receiving part is provided between the top and bottom of the bridge surface 50.

[0042] The conveying pipe 6 is connected between the conveying pump 3 and the receiving unit. A one-way control valve 610 is installed on the conveying pipe 6 to allow the coal slurry water in the water collection chamber 12 to be conveyed unidirectionally to the receiving unit.

[0043] As an optional embodiment of the conveying pipe 6, the conveying pipe 6 includes a main pipe 60 and a plurality of DN50 branch pipes 61. Figures 1 to 2 As shown, four water collection tanks 2 can be installed in the silo distribution room 1. Each water collection tank 2 is equipped with a submersible pump, and the outlet of each submersible pump is connected to a branch pipe 61. All four branch pipes 61 are connected to a main pipe 60, which extends to the receiving section of the trestle 5 to transport the coal slurry water from the four water collection tanks 2 to the receiving section. Each branch pipe 61 is connected to a one-way control valve 610 to ensure that the coal slurry water can only flow from the water collection tank 2 to the receiving section and cannot flow in the opposite direction. Furthermore, three silos 8 can be set below a single silo distribution room 1, and each silo 8 can correspond to four water collection tanks 2. The silo distribution room 1 has a total of twelve water collection tanks 2. A B trestle 5 is set on the south side of the silo distribution room 1, and an A trestle 5 is set on the north side (e.g., Figures 1 to 2 As shown, the branch pipes 61 of the six submersible sewage pumps on the south side converge at the main pipe 60 and connect to the receiving section of the B trestle 5, flowing by gravity through the bridge surface 50 of the B trestle 5 to the drive room. The branch pipes 61 of the six submersible sewage pumps on the north side converge into the main pipe 60 and connect to the receiving section of the A trestle 5, flowing by gravity through the bridge surface 50 of the A trestle 5 to the drive room.

[0044] Among them, such as Figures 1 to 1 As shown, a gate valve 611 is installed downstream of the one-way control valve 610 in the branch pipe 61, and a drain valve 612 is installed on the bypass pipe to control the discharge of coal slurry water in the branch pipe 61.

[0045] As an optional implementation of the trestle 5, the bridge deck 50 of the trestle 5 has a slope of 15.9°. After receiving the coal slurry water, the receiving part of the trestle 5 guides the flow through the bridge deck 50, allowing the coal slurry water to flow by gravity to the bottom of the trestle 5, i.e., the drive chamber. The coal slurry water in the drive chamber flows into a collection pit through a ditch. In the collection pit of the drive chamber, a submersible pump is used to transport the coal slurry water to a coal slurry water sedimentation tank, where the coal slurry water is treated by sedimentation and then recycled.

[0046] The coal slurry water collection device provided in this application embodiment collects coal slurry water by setting up a water collection tank 2 in the silo distribution room 1, and transports the coal slurry water in the water collection tank 2 to the receiving part of the trestle 5 through the delivery pump 3 and delivery pipe 6. The coal slurry water flows by gravity to the drive room under the action of the inclined surface of the trestle 5 for unified treatment. The outside of the water collection tank 2 is provided with a heat preservation part 4 to achieve the heat preservation effect and has good heat preservation stability. This solves the safety problems such as the expansion and cracking of the downpipe and the fall of the downpipe caused by the coal slurry water in the silo distribution room 1 freezing in the low temperature environment when it flows to the bottom of the silo 8 through the downpipe. It maintains the normal flushing needs of the coal slurry water in the silo distribution room 1 and ensures that the environmental dust content index meets the environmental protection requirements.

[0047] As an optional embodiment, a water collection cavity 12 is provided on the floor 10, and a floor support beam 11 is provided below the floor 10. The water collection trough 2 is installed in the water collection cavity 12, and support beams 20 are connected to the side walls of the water collection trough 2. The support beams 20 are connected to the floor support beams 11. In this embodiment, the water collection trough 2 is supported by the support beams 20, and the support beams 20 are fixed by the floor support beams 11, thereby achieving the effect of stably limiting the water collection trough 2 on the floor 10.

[0048] As an optional embodiment, the floor support beam 11 includes a first sub-beam 110 and a second sub-beam 111 arranged opposite to each other, and the support beam 20 includes two support crossbeams 200 and two support longitudinal beams 201 respectively arranged on the four side walls of the water collection tank 2. The two ends of any one of the support crossbeams 200 are respectively fixed to the first sub-beam 110 and the second sub-beam 111, and the two support longitudinal beams 201 are arranged opposite to each other and connected between the two oppositely arranged support crossbeams 200. Since the silo 8 has a circular body, the floor support beams 11 of the silo distribution room 1 are not orthogonally arranged but divergent, making it difficult to install the support beams 20. To solve this problem, the embodiment of this application adopts the following method: two oppositely arranged support crossbeams 200 are installed on the first sub-beam 110 and the second sub-beam 111, such as... Figure 3As shown, the dimensions of the first sub-beam 110 and the second sub-beam 111 are measured. Based on the measured dimensions, two supporting crossbeams 200 are cut and welded. Then, two opposing supporting longitudinal beams 201 are welded and fixed onto the two opposing supporting crossbeams 200. Specifically, since the length × width × height of the water collection tank 2 is 1000mm × 1000mm × 1000mm, in order to facilitate the installation of the water collection tank 2 between the two supporting crossbeams 200 and the two supporting longitudinal beams 201, the vertical distance between the two supporting crossbeams 200 is determined to be 1003mm. Similarly, the vertical installation distance between the two supporting longitudinal beams 201 is also 1003mm.

[0049] As an optional embodiment, such as Figures 4 to 5 As shown, each end of the supporting beam 200 is equipped with a connecting plate 21, and the two connecting plates 21 are respectively attached to the first sub-beam 110 and the second sub-beam 111. Specifically, based on the installation distance of 1003mm between the two supporting beams 200, a line is measured and marked on the first sub-beam 110 of the silo distribution room 1. The drilling position is determined on the first sub-beam 110 according to the center distance of the bolt holes of the connecting plates 21. A water drill is used to drill a hole on the side perpendicular to the first sub-beam 110. After cleaning and drying the impurities and dust in the drill hole, construction anchoring adhesive 113 is injected into the drill hole and the anchoring adhesive 113 is filled into the drill hole. The connecting bolt 112 is inserted into the drill hole, and while inserting it, it is slowly rotated in the same direction until the connecting bolt 112 reaches the bottom of the drill hole and the anchoring adhesive 113 overflows from the drill hole. Measures are taken to keep the position of the connecting bolt 112 fixed and wait for the anchoring adhesive 113 to cure. After the anchoring adhesive 113 has completely cured, install the connecting plate 21 onto the first sub-beam 110 in the corresponding position, and then tighten it with the double nuts 114 with washers. After the supporting beam 200 is pressed tightly against the lower surface of the floor 10 of the silo distribution room 1, weld it onto the connecting plate 21.

[0050] As an optional embodiment, such as Figure 6As shown, both the supporting crossbeam 200 and the supporting longitudinal beam 201 are attached to the bottom of the floor 10. Each of the supporting crossbeams 200 and 201 has an insulation groove 40 on the side where they connect to the water collection tank 2. The opening of the insulation groove 40 is fastened to the side wall of the water collection tank 2, defining an insulation cavity. The insulation part 4 also includes an insulation shell 41 located below the supporting crossbeams 200 and 201. Both the insulation cavity and the insulation shell 41 are filled with insulation material 42. In this embodiment, by reasonably setting the portion where the supporting crossbeams 200 and 201 connect to the outer wall of the water collection tank 2, and leaving space for the insulation groove 40 structure to be filled with insulation material 42, the insulation effect of the portion of the water collection tank 2 located within the supporting crossbeams 200 and 201 is ensured. An insulating outer shell 41 is installed on the portion of the water collection tank 2 located below the supporting crossbeam 200 and supporting longitudinal beam 201 to ensure the insulation effect of the portion of the water collection tank 2 located below the supporting crossbeam 200 and supporting longitudinal beam 201. The insulating tank 40 can be welded and fixed to the outer wall of the water collection tank 2, and the insulating outer shell 41 can be welded and fixed to the outer wall of the water collection tank 2.

[0051] As an optional embodiment, the insulation material 42 is rock wool, which is fixed to the outside of the water collection trough 2 by metal wire. In this embodiment, the metal wire can be #8 iron wire. The #8 iron wire fixes the 100mm thick rock wool insulation layer, and then the supporting crossbeam 200 and supporting longitudinal beam 201 are welded and fixed to the sub-water collection trough 2. The insulation shell 41 is welded and fixed to the upper supporting crossbeam 200 and supporting longitudinal beam 201. Since the water collection cavity 12 is installed below the concrete floor 10 of the silo distribution room 1, at a suspended position of more than 60 meters, compared to the prior art where daily maintenance and repair of the insulation structure requires a large investment of manpower and resources, the above-mentioned insulation measures in this embodiment can prevent damage to the insulation part 4 and maintain a good insulation effect for a long time.

[0052] Furthermore, a heating and insulation system is installed in the silo distribution room 1, ensuring that the indoor temperature of the silo distribution room 1 will not fall below 5°C in winter, thus preventing the coal slurry water in the collection chamber 12 from freezing. After the belt conveyor and other facilities in the silo distribution room 1 and the floor of the silo distribution room 1 are washed, all the coal slurry water in the collection tank 2 is pumped out using a submersible pump. Even if the coal slurry water at the bottom of the collection tank 2 is not completely drained, the indoor heating system, including air conditioning, will prevent the remaining coal slurry water from freezing, ensuring the long-term normal operation of the coal slurry washing water collection system.

[0053] As an optional embodiment, such as Figure 6As shown, the floor 10 includes a recessed water collection inlet 13, and the water collection cavity 12 is located within the water collection inlet 13. The inner diameter of the water collection cavity 12 gradually decreases in the direction away from the top surface of the floor 10. In this embodiment, the water collection inlet 13 is 5mm lower than the floor of the silo distribution room 1, facilitating the smooth flow of the flushed coal slurry water into the water collection tank 2. At the floor drain of the silo distribution room 1, a 50mm section measuring 1600mm in length × 1600mm in width is first cut downwards, and the concrete in the middle is chiseled away to obtain the water collection inlet 13. Then, the concrete is chiseled downwards in a contractive manner until a water collection cavity 12 measuring 1060mm in length × 1060mm in width is created for installing the water collection tank 2. When installing the two supporting crossbeams 200 and the two supporting longitudinal beams 201, the distance between the two supporting crossbeams 200 is determined to be 1003mm, and the distance between the two supporting longitudinal beams 201 is determined to be 1003mm. After the four steel beams (two supporting crossbeams 200 and two supporting longitudinal beams 201) are installed, the water collection trough 2 is hoisted into the space defined by the four steel beams. After determining the position, the four outer surfaces of the water collection trough 2 are welded together with the four steel beams, and the welds are reinforced according to the welding requirements. The dimensions of the water collection cavity 12 in the silo distribution room 1 are set to 1060mm in length × 1060mm in width. There is a 30mm space between each of the four sides of the water collection cavity 12 and the water collection trough 2, which facilitates the welding of the water collection trough 2 to the supporting crossbeams 200 and supporting longitudinal beams 201.

[0054] As an optional embodiment, an epoxy asphalt waterproof layer 100 extending horizontally is provided within the floor 10, with the inner side of the epoxy asphalt waterproof layer 100 sealingly abutting against the side wall of the water collection tank 2. A partition waterproof plate 101 is fitted below the epoxy asphalt waterproof layer 100, with the inner side of the partition waterproof plate 101 sealingly abutting against the side wall of the water collection tank 2. To prevent easily leaking vertical joints at the chiseled water collection cavity 12, the inner diameter of the water collection cavity 12 gradually decreases towards the direction away from the ground during chiseling, thus minimizing the gap between the outer surface of the water collection tank 2 and the concrete floor 10 of the silo distribution room 1. Figure 6 As shown, a 200mm wide × 6mm thick steel plate is welded around the water collection tank 2, 50mm down from the top edge of each of the four outer facades, to serve as a waterproof partition 101. The welds are fully welded to meet standard requirements, and the first grouting material 14 is poured. In this way, coal slurry water leaking downwards from the water inlet 13 can only flow around the waterproof partition 101, thus reducing the chance of leakage. After the first grouting material 14 has solidified and dried, a 5mm thick epoxy asphalt waterproof layer 100 is laid on top to further prevent coal slurry water from seeping downwards. Then, the second grouting material 15 is poured, and the surface is leveled and smoothed to ensure that coal slurry water on the floor of the silo distribution room 1 does not seep downwards.

[0055] Furthermore, such as Figure 6 As shown, in order to prevent corrosion and leakage of the water collection tank 2, after the water collection tank 2 is installed, the inner surface of the water collection tank 2 is sandblasted with Sa2.5 grade to remove rust, and an epoxy resin anti-corrosion layer 23 with three layers of cloth and five layers of oil is applied to prevent corrosion and leakage of the water collection tank 2 for a long time.

[0056] As an optional embodiment, such as Figure 6 As shown, a screen plate 7 is installed at the opening of the water collection tank 2, and a support frame 22 is provided on the inner side of the tank wall of the water collection tank 2, with the support frame 22 supporting the screen plate 7 below. The screen plate 7 filters out larger impurities in the coal slurry water, preventing clogging of the submersible pump and maintaining the stability of the system operation. The screen plate 7 can be made of steel grating, and the support frame 22 is bent towards the inner side of the water collection tank 2. The screen plate 7 is welded and fixed to the bent portion of the support frame 22.

[0057] As an optional embodiment, the receiving unit is located behind the drum of the belt conveyor. This arrangement of the receiving unit effectively avoids positional interference between the belt conveyor and the drum, ensuring that the coal slurry is conveyed to the rear of the drum and thus preventing any impact on the drum.

[0058] As needed, the above technical solutions can be combined to achieve the best technical effect.

[0059] The above are merely the principles and preferred embodiments of the present invention. It should be noted that, for those skilled in the art, several other modifications can be made based on the principles of the present invention, and these modifications should also be considered within the scope of protection of the present invention.

Claims

1. A silo coal slurry water collection device, characterized in that, include: The silo distribution room is connected to the silo and located on the top of the silo. The floor of the silo distribution room is equipped with a water collection trough for collecting coal slurry water. The water collection trough is equipped with a conveying pump, and the outside of the water collection trough is equipped with a heat insulation part. A trestle, on which a belt conveyor is installed, the trestle surface is inclined, the top of the trestle surface is located in the silo distribution room, the bottom of the trestle surface extends to the drive room of the belt conveyor, and a receiving part is provided between the top and bottom of the trestle surface. A conveying pipe is connected between the conveying pump and the receiving unit. A one-way control valve is installed on the conveying pipe to allow the coal slurry water in the water collection tank to be conveyed unidirectionally to the receiving unit.

2. The silo coal slurry water collection device according to claim 1, characterized in that, A water collection cavity is provided on the floor, and a floor support beam is provided below the floor. The water collection trough is installed in the water collection cavity, and the side walls of the water collection trough are connected to the support beams, which are connected to the floor support beams.

3. The silo coal slurry water collection device according to claim 2, characterized in that, The floor support beam includes a first sub-beam and a second sub-beam arranged opposite to each other, and the support beam includes two support crossbeams and two support longitudinal beams respectively arranged on the four side walls of the water collection tank; Both ends of any of the supporting crossbeams are fixed to the first sub-beam and the second sub-beam, respectively; the two supporting longitudinal beams are arranged opposite to each other and are connected between the two oppositely arranged supporting crossbeams.

4. The silo coal slurry water collection device according to claim 3, characterized in that, Each end of the supporting beam is equipped with a connecting plate, and the two connecting plates are respectively attached to the first sub-beam and the second sub-beam.

5. The silo coal slurry water collection device according to claim 3, characterized in that, Both the supporting crossbeam and the supporting longitudinal beam are attached to the bottom of the floor. The side of the supporting crossbeam and the supporting longitudinal beam connected to the water collection tank is provided with the insulation groove of the insulation part. The groove opening of the insulation groove is fastened to the side wall of the water collection tank to define the insulation cavity. The insulation section also includes an insulation shell located below the supporting crossbeam and the supporting longitudinal beam, and both the insulation cavity and the insulation shell are filled with insulation material.

6. The silo coal slurry water collection device according to claim 5, characterized in that, The insulation material is rock wool, which is fixed to the outside of the water collection tank by metal wires.

7. The silo coal slurry water collection device according to claim 5, characterized in that, The floor includes a recessed water collection inlet, and the water collection cavity is located inside the water collection inlet. The inner diameter of the water collection cavity gradually decreases in the direction away from the top surface of the floor.

8. The silo coal slurry water collection device according to claim 4, characterized in that, An epoxy asphalt waterproof layer extending horizontally is provided inside the floor, and the inner side of the epoxy asphalt waterproof layer is sealed against the side wall of the water collection tank. A partition waterproofing board is attached to the bottom of the epoxy asphalt waterproofing layer, and the inner side of the partition waterproofing board is sealed against the side wall of the water collection tank.

9. The silo coal slurry water collection device according to claim 1, characterized in that, The water collection tank has a sieve plate installed at its opening, and a support frame is provided on the inner side of the tank wall, which is supported below the sieve plate.

10. The silo coal slurry water collection device according to claim 1, characterized in that, The receiving section is located behind the drum of the belt conveyor.

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