Coal slime water mixture separating device

Abstract

The utility model relates to the technical field of coal slime water treatment, in particular to a coal slime water mixture separating device which comprises a filtering barrel used for filtering ore pulp and an ore pulp feeding pipe used for injecting the ore pulp into the filtering barrel. The nozzle is used for washing the interior of the filtering barrel when ore pulp is injected into the filtering barrel. According to the utility model, mucus attached to the inner wall of the filtering barrel in the ore pulp filtering process is effectively removed, and the filtering work is ensured to be smoothly carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of coal slime water treatment, in particular to a coal slime water mixture separation device. Background Art

[0002] In the production process of the coal washing plant, the solid mixture is filtered out from the coal slurry water mixture, so that the coal slurry water can be reused secondary.

[0003] At present, ultra-high pressure filter press technology is usually used to process the water and solids in the coal slurry water mixture to obtain the corresponding solid substances. However, due to the high working pressure of the ultra-high pressure filter press, the general working pressure can reach up to 10MPa. Under this high pressure, the filter cloth is easily damaged, so that the filter cloth needs to be stopped intermittently to replace the filter cloth, which reduces the working efficiency on the one hand and increases the production cost on the other hand, resulting in the application of ultra-high pressure filter presses. Difficulties. Therefore, in order to solve the above technical problems, many researchers directly use the inclined rolling filtration method to separate the solid substances in the coal slurry water. Patent CN 217119493U discloses a filter device for tail coal slurry, which includes a filter box with an upper opening and a lower opening, and at least two layers of filter screen plates are arranged in the filter box. The filter screen plates are laid with linear screen bars spaced apart from each other, and the linear screen bars are used to filter the particulate impurities in the tail coal slurry and crush the flocculent agglomerates in the tail coal slurry. The filter screen plate is inclined, and the filter box extends a filter box laterally on the side with a lower horizontal height of the filter screen plate, which is used to accumulate the particulate impurities rolling down from the filter screen plate. Although the filter device can filter out solid matter in the coal slime water slurry, it is found in actual use that the relatively viscous coal slime water slurry will adhere to the surface of the filter screen plate when it comes into contact with the filter screen plate. On the one hand, the solid matter will adhere to the filter screen plate, causing the solid matter to be unable to roll, thereby forming a blocking effect on other solid matter, and thus causing the solid matter to accumulate and be unable to be filtered; on the other hand, the viscous coal slime water slurry will adhere to the sieve holes on the filter screen plate, and the water in the coal slime water will evaporate over time, causing the sieve holes to become smaller or even clogged, resulting in the filter screen plate being unable to filter. At this time, it is necessary to replace the filter screen plate or use a sharp tool to clear the clogged sieve holes, which greatly reduces the filtration efficiency and therefore needs to be solved urgently. Utility Model Content

[0004] In order to avoid and overcome the technical problems existing in the prior art, the utility model provides a coal-slurry-water mixture separation device. The utility model effectively removes the mucus attached to the inner wall of the filter barrel during the slurry filtering process, ensuring that the filtering work proceeds smoothly.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A coal-slurry-water mixture separation device comprises a filter barrel for filtering ore pulp and a ore pulp feed pipe for injecting ore pulp into the filter barrel; and also comprises a nozzle for flushing filter holes on the filter barrel wall when the ore pulp is injected into the filter barrel.

[0007] As a further solution of the present invention: a splash-proof cover is arranged at the barrel mouth of the filter barrel, and the slurry feed pipe passes through the splash-proof cover and extends into the filter barrel; a water inlet pipe for providing clean water is penetrated at the axis of the splash-proof cover; a branch pipe connecting the water inlet pipe and the nozzle is arranged on the lower plate surface of the splash-proof cover, and the nozzles are evenly arranged in sequence along the circumference of the splash-proof cover, and the nozzles are respectively pointed to the inner wall of the filter barrel at the corresponding position.

[0008] As a further solution of the present invention: the filter barrel comprises a cylinder mounted on a support frame, a conical funnel with an openable and closable bottom outlet is coaxially fixedly connected inside the cylinder, and the cavity of the cylinder above the funnel and the cavity of the funnel cooperate with each other to form a liquid holding cavity for holding the slurry;

[0009] A guide groove is provided at the bottom of the funnel, and a filter plate is inserted into the guide groove in a horizontal direction to separate the bottom of the funnel into upper and lower parts.

[0010] As a further solution of the present invention: an overflow port is provided on the cylinder wall located at the upper part of the funnel, an overflow pipe is arranged at the overflow port for receiving the liquid flowing out of the overflow port, and a micro flow switch is arranged inside the overflow pipe for detecting whether there is liquid overflow.

[0011] As a further solution of the present invention: it also includes a telescopic rod that can be extended and retracted in the vertical direction, the telescopic end of the telescopic rod is connected to a horizontally arranged supporting cross bar, and the splash-proof cover is installed on the cantilever end of the supporting cross bar; a sliding rod is installed on the support frame, the rod length direction of the sliding rod is arranged in the vertical direction, and a guide hole is opened on the sliding block, and the sliding block is slidably connected to the sliding rod through the guide hole.

[0012] As a further solution of the present invention: a positioning hole is opened on the support frame and runs through from top to bottom, and the filter barrel is arranged in the positioning hole; a positioning ring is coaxially fixed on the outer wall of the cylinder, and the positioning ring is pressed from top to bottom at the opening of the positioning hole.

[0013] As a further solution of the present invention: the device also includes a slurry pipe with slurry flowing inside, the side wall of the slurry pipe is connected to a slurry feed pipe, the bottom end of the slurry feed pipe passes through the splash-proof cover plate, and the discharge track of the slurry feed pipe extends into the interior of the cylinder.

[0014] As a further solution of the present invention: the cantilever end of the supporting crossbar is connected with a locking clamp, and the slurry feed pipe and the water inlet pipe are both clamped in the jaws of the locking clamp.

[0015] As a further solution of the present invention: the slurry feed pipe and the slurry pipe are connected to each other through a slurry feed hose; and the water inlet pipe is connected to the circulating water system through the water inlet hose.

[0016] As a further solution of the present invention: an upper limit sensor is arranged at the top end of the slide rod, and a lower limit sensor is arranged at the bottom end of the slide rod.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The utility model uses a nozzle to flush the barrel wall of the filter barrel. On the one hand, it can flush away the sticky slurry attached to the barrel wall to prevent the slurry from adhering to the barrel wall and clogging the filter holes; at the same time, the sprayed water can also dilute the slurry, thereby reducing the viscosity of the slurry, preventing the slurry from adhering to the barrel wall of the filter barrel, and effectively removing the mucus attached to the inner wall of the filter barrel during the slurry filtration process, ensuring that the filtration work is carried out smoothly.

[0019] 2. The utility model has corresponding filter holes on the cylinder wall, and corresponding filter holes on the outer wall of the funnel, and the overflow port is located higher than the filter holes. The splash-proof cover can be directly covered on the cylinder, and the nozzle will not spray water onto the overflow port, that is, the nozzle is located lower than the overflow port. The splash-proof cover can also be directly extended into the cylinder, and the splash-proof cover can also be located lower than the overflow port to avoid triggering the micro-flow switch and improve the stability and accuracy of the detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 2 It is a structural schematic diagram of the splash-proof cover plate in the utility model.

[0022] Figure 3 It is a structural schematic diagram of the filter barrel in the utility model.

[0023] In the figure:

[0024] 30. Loading part; 31. Support frame; 311. Positioning hole; 32. Filter barrel; 321. Cylinder; 3211. Positioning ring; 3212. Overflow port; 3213. Overflow pipe; 3214. Micro flow switch; 322. Funnel; 3221. Filter plate; 3222. Guide groove; 3223. Discharge electric valve; 33. Slurry feed pipe; 34. Slurry pipe;

[0025] 40. Cleaning unit; 41. Cleaning assembly; 411. Splash-proof cover; 412. Water inlet pipe; 413. Branch pipe; 414. Nozzle; 415. Water circulation system; 42. Cleaning lifting assembly; 421. Sliding rod; 422. Sliding block; 423. Telescopic rod; 424. Support cross bar; 425. Locking clamp; 426. Upper limit sensor; 427. Lower limit sensor. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figures 1 to 3 As shown, the utility model is mainly composed of a loading part 30 and a cleaning part 40.

[0028] The charging part 30 mainly includes a support frame 31 , a positioning hole 311 , a filter barrel 32 , a cylinder 321 , a funnel 322 , a positioning ring 3211 , an overflow port 3212 , an overflow pipe 3213 , a micro flow switch 3214 , a slurry feed pipe 33 and a slurry pipe 34 .

[0029] The cleaning part 40 mainly includes a cleaning component 41, a splash-proof cover 411, a water inlet pipe 412, a branch pipe 413, a nozzle 414, a water circulation system 415, a cleaning lifting component 42, a sliding rod 421, a slider 422, a telescopic rod 423, a supporting cross bar 424, a locking clamp 425, an upper limit sensor 426 and a lower limit sensor 427.

[0030] like Figure 1As shown, the loading part 30 includes a support frame 31 supported on the ground, and a positioning hole 311 for accommodating a filter barrel 32 is provided on the support frame 31. The filter barrel 32 includes a cylinder 321 with an axis arranged vertically, and a hollow conical funnel 322 is coaxially installed inside the cylinder 321. The funnel 322 and the cylinder cavity at the upper part of the cylinder 321 constitute a liquid holding cavity for holding coal slurry water. The structure at the bottom of the funnel 322 is entirely located in the cylinder cavity at the lower part of the cylinder 321. A filter plate 3221 is also arranged at the bottom of the funnel 322, and a discharge electric valve for controlling the opening and closing of the bottom pipe opening of the funnel 322 is also arranged at the bottom of the funnel 322. The upper end of the discharge electric valve is connected to the bottom pipe opening of the funnel 322, and the lower end of the discharge electric valve is connected to the discharge pipe. A filter hole for filtering solid matter is provided on the inner wall of the funnel 322. A guide groove 3222 is also arranged at the bottom of the funnel 322, and the groove length direction of the guide groove 3222 is arranged horizontally. A rectangular filter plate 3221 is inserted in the guide groove 3222, and the filter plate 3221 divides the bottom of the funnel 322 into two parts. When the content of solid matter in the filter barrel 32 reaches a set amount, the filter plate 3222 can be pulled out, and the discharge electric valve 3223 is opened at the same time, and then the solid matter leaks out from the bottom outlet of the funnel 322.

[0031] The filter barrel 32 is coaxially inserted in the positioning hole 311, and a positioning ring 3211 is coaxially fixed on the outer wall of the cylinder 321. When the filter barrel 32 is inserted in the positioning hole 311, the positioning ring 3211 is pressed from top to bottom on the orifice of the positioning hole 311, so that the filter barrel 32 passes through the positioning hole 311 and is suspended in the air. A fitting gap is reserved between the hole wall of the positioning hole 311 and the outer wall of the cylinder 321. In this way, after the content of solid matter inside the filter barrel 32 reaches a set amount, when the bottom of the funnel 322 cannot leak material, a lifting device is used to lift the filter barrel 32. The reserved fitting gap can prevent sliding friction between the positioning hole 311 and the cylinder 321.

[0032] An overflow port 3212 is provided on the cylinder wall near the cylinder mouth at the upper part of the cylinder 321. An overflow pipe 3213 is arranged at the bottom of the overflow port 3212 to receive the liquid flowing out of the overflow port 3212. A micro flow switch 3214 is installed at the feed port of the overflow pipe 3213 to monitor in real time whether there is water flowing out of the overflow port 3212. When water flows out of the overflow port 3212, it means that the funnel 322 in the filter barrel 32 is blocked or there are too many solid substances inside the filter barrel 32, causing the flow rate of water between the solid substances to be less than the speed of adding water by the nozzle 414. At this time, it is necessary to stop injecting coal slurry water into the filter barrel 32 and stop spraying water from the nozzle 414. If blockage occurs, use a lifting device to lift the filter barrel 32, dump out the lifted solid substances, and then rinse the solid substances and the filter barrel 32 with clean water. If there are too many solid materials, it is necessary to stop injecting coal slurry water into the filter barrel 32, and stop spraying water after the nozzle 414 continues spraying water for a period of time to wash the solid materials; then open the filter plate 3221 at the bottom of the pull-out funnel 322, and open the unloading electric valve 3223 to let the solid materials fall.

[0033] The highest point of the contact between the nozzle 414 and the cylinder 31 is lower than the overflow port 3212 to avoid accidental triggering of the micro flow switch 3214 and causing an alarm.

[0034] A slurry feed pipe 33 communicating with a slurry pipe 34 for conveying slurry is also arranged at the entrance of the cylinder 321 , and the slurry flows into the cylinder 321 through the slurry feed pipe 33 .

[0035] The cleaning part 40 comprises a cleaning assembly 41 and a cleaning lifting assembly 42. The cleaning assembly 41 comprises an inlet pipe 412 arranged vertically along an axis, and the inlet pipe 412 is made of a steel pipe. The bottom of the inlet pipe 412 is coaxially fixed with a disc-shaped splash cover plate 411, and the diameter of the splash cover plate 411 is roughly the same as the inner diameter of the cylinder 321, so that the splash cover plate 411 can be coaxially pressed into the cylinder 321 along the vertical direction, and the gap between the splash cover plate 411 and the cylinder 321 wall is used for the flow of air. A plurality of branch pipes 413 connected to the inlet pipe 412 are arranged on the lower plate surface of the splash cover plate 411, and the axial direction of each branch pipe 413 is arranged radially along the splash cover plate 411, and each branch pipe 413 is uniformly distributed on the lower plate surface of the splash cover plate 411 along the circumferential direction of the splash cover plate 411. A plurality of nozzles 414 are sequentially arranged on each branch pipe 413 along the axial direction of the branch pipe 413 . The spraying direction of the nozzles 414 points to the wall of the cylinder 321 , thereby cleaning the wall of the cylinder 321 and the inner wall of the funnel 322 .

[0036] The water inlet pipe 412 is connected to the water circulation system 415 through the water inlet hose, and clean water is provided to the water inlet pipe 412 through the water circulation system 415. The other end of the water inlet hose is connected to one end of the circulating water feeding electric valve, and the other end of the circulating water feeding electric valve is connected to the circulating water system. The circulating water is sprayed out through the nozzle 414. Under the action of the sprayed water, the residual ore pulp and the solid particles in the ore pulp in the filter barrel 32 are cleared to ensure that the filter barrel 32 is clean before each measurement, without residual ore pulp and solid particles in the ore pulp.

[0037] The cleaning lifting assembly 42 includes a slide bar 421 fixed on the support frame 31, and the axial direction of the slide bar 421 is arranged vertically. A slider 422 is arranged slidably on the slide bar 421. There is also a telescopic rod 423 arranged in parallel with the slide bar 421, and the bottom of the slider 422 and the telescopic end of the telescopic rod 423 are fixed to each other, and then the slider 422 is driven to move up and down in the vertical direction through the telescopic rod 423. A support cross bar 424 arranged horizontally in the rod length direction is arranged on the side of the slider 422 close to the filter barrel 32, and a locking clamp 425 for clamping the water inlet pipe 412 is fixed to the cantilever end of the support cross bar 424. Through the telescopic action of the telescopic rod 423 along the vertical direction, each nozzle 414 is driven to perform a reciprocating linear sliding action along the vertical direction, and then the cylinder wall of the cylinder 321 and the inner wall of the funnel 322 are cleaned.

[0038] The slurry feed pipe 33 and the circulating water inlet pipe 412 are located directly above the mouth of the cylinder 321 of the filter barrel 32, and have no physical contact with the filter barrel 32. The slurry feed pipe 33 is also fixed on the locking clamp 425, and the mouth of the slurry feed pipe 33 is lower than the position of the nozzle 414 along the vertical direction. In order to facilitate the movement of the slurry feed pipe 33, the slurry feed pipe 33 and the slurry pipe 34 are connected to each other through a slurry feed hose. The slurry feed hose is connected to the upper end of the slurry feed pipe 33, and the other end of the slurry feed hose is connected to the slurry feed electric valve, and the other end of the slurry feed electric valve is connected to the slurry pipe 34 of the thickening tank coal slurry water, and the low-concentration thickening tank feed coal slurry water that needs to be tested for solid content is sampled. The slurry feed hose and the water inlet hose are both made of corrugated soft material to facilitate shrinkage and bending.

[0039] When in use, first clean the inside of the filter barrel 32, and then place the filter barrel 32 in the positioning hole 311. Then drive the telescopic gas rod as the telescopic rod 423 to drive the slurry feed pipe 33 and the splash cover 411 to descend, and make the splash cover 411 cover the mouth of the cylinder 321 or extend into the cylinder cavity. When the splash cover 411 moves into place, the slurry is injected into the filter barrel 32 through the slurry feed pipe 33, and the nozzle 414 is opened to rinse the cylinder wall of the filter barrel 32. When water flows out of the overflow port 3212, it means that the funnel 322 in the filter barrel 32 is blocked or there are too many solid substances in the filter barrel 32, resulting in the flow rate of water between the solid substances being less than the speed of adding water by the nozzle 414. At this time, it is necessary to stop injecting coal slurry water into the filter barrel 32 and stop the nozzle 414 from spraying water. If blockage occurs, use a lifting device to lift the filter barrel 32, dump out the lifted solid matter, and then use clean water to rinse the solid matter and the filter barrel 32. If there is too much solid matter, it is necessary to stop injecting coal slurry water into the filter barrel 32, and make the nozzle 414 spray water for a period of time and then stop spraying water to rinse the solid matter; then open the filter plate 3221 at the bottom of the pull-out funnel 322, and open the discharge electric valve 3223 to let the solid matter fall.

[0040] 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.

Claims

1. A coal slurry water mixture separation device, characterized in that: It comprises a filter barrel (32) for filtering ore pulp, and a ore pulp feed pipe (33) for injecting ore pulp into the filter barrel (32); and also comprises a nozzle (414) for flushing the filter holes on the barrel wall of the filter barrel (32) when the ore pulp is injected into the filter barrel (32).

2. A coal-slurry-water mixture separation device according to claim 1, characterized in that: A splash-proof cover plate (411) is arranged on the barrel opening of the filter barrel (32), and a slurry feed pipe (33) passes through the splash-proof cover plate (411) and extends into the filter barrel (32); a water inlet pipe (412) for providing clean water is penetrated at the axis of the splash-proof cover plate (411); a branch pipe (413) connecting the water inlet pipe (412) and a nozzle (414) is arranged on the lower plate surface of the splash-proof cover plate (411), and each nozzle (414) is evenly arranged in sequence along the circumference of the splash-proof cover plate (411), and each nozzle (414) points to the inner wall of the filter barrel (32) at a corresponding position.

3. A coal-slurry-water mixture separation device according to claim 2, characterized in that: The filter barrel (32) comprises a cylinder (321) mounted on a support frame (31), a conical funnel (322) with an openable and closable bottom outlet coaxially fixedly connected inside the cylinder (321), and a cavity of the cylinder (321) above the funnel (322) and a cavity of the funnel (322) cooperate with each other to form a liquid holding cavity for holding ore slurry; A guide groove (3222) is provided at the bottom of the funnel (322), and the filter plate (3221) is inserted into the guide groove (3222) in a horizontal direction to separate the bottom of the funnel (322) into upper and lower parts.

4. A coal-slurry-water mixture separation device according to claim 3, characterized in that: An overflow port (3212) is provided on the cylinder wall of the cylinder (321) located above the funnel (322); an overflow pipe (3213) is arranged at the overflow port (3212) for receiving the liquid flowing out of the overflow port (3212); and a micro flow switch (3214) is arranged inside the overflow pipe (3213) for detecting whether liquid overflows.

5. A coal-slurry-water mixture separation device according to claim 4, characterized in that: It also includes a telescopic rod (423) that is telescopic in the vertical direction, the telescopic end of the telescopic rod (423) is connected to a horizontally arranged support cross bar (424), and the splash cover (411) is installed on the cantilever end of the support cross bar (424); a sliding rod (421) is installed on the support frame (31), the rod length direction of the sliding rod (421) is arranged in the vertical direction, and a guide hole is opened on the sliding rod (422), and the sliding rod (422) is slidably sleeved on the sliding rod (421) through the guide hole.

6. A coal-slurry-water mixture separation device according to claim 5, characterized in that: The support frame (31) is provided with a positioning hole (311) which passes through from top to bottom, and the filter barrel (32) is arranged in the positioning hole (311); a positioning ring (3211) is coaxially fixedly connected to the outer wall of the cylinder (321), and the positioning ring (3211) is pressed from top to bottom at the opening of the positioning hole (311).

7. A coal-slurry-water mixture separation device according to claim 6, characterized in that: The device also includes a slurry pipe (34) in which slurry flows. The side wall of the slurry pipe (34) is connected to a slurry feed pipe (33). The bottom end of the slurry feed pipe (33) passes through the splash-proof cover plate (411), and the discharge track of the slurry feed pipe (33) extends into the interior of the cylinder (321).

8. The coal-slurry-water mixture separation device according to claim 7, characterized in that: The cantilever end of the supporting crossbar (424) is connected to a locking clamp (425), and the slurry feed pipe (33) and the water inlet pipe (412) are both clamped in the jaws of the locking clamp (425).

9. The coal-slurry-water mixture separation device according to claim 8, characterized in that: The slurry feed pipe (33) and the slurry pipe (34) are connected to each other via a slurry feed hose.

10. The coal-slurry-water mixture separation device according to claim 9, characterized in that: The water inlet pipe (412) is connected to the circulating water system via a water inlet hose; An upper limit sensor (426) is arranged at the top end of the slide bar (421), and a lower limit sensor (427) is arranged at the bottom end of the slide bar (421).

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