CN219483316U - Drum screen cleaning device of coal water slurry mill - Google Patents
Drum screen cleaning device of coal water slurry mill Download PDFInfo
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- CN219483316U CN219483316U CN202223201314.7U CN202223201314U CN219483316U CN 219483316 U CN219483316 U CN 219483316U CN 202223201314 U CN202223201314 U CN 202223201314U CN 219483316 U CN219483316 U CN 219483316U
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- screen body
- cylinder screen
- cylindrical screen
- arc chute
- cylinder
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Abstract
The utility model discloses a cylinder screen cleaning device of a coal water slurry mill, which relates to the technical field of coal equipment cleaning, and is arranged on a cylinder screen housing and used for cleaning a cylinder screen body, and the structure of the device comprises the following components: the water spraying end of the high-pressure water spraying assembly downwards passes through the outer cover of the cylindrical screen and is opposite to the cylindrical screen body; the arc chute is obliquely arranged in the cylinder screen body, is positioned right below the water spraying end of the high-pressure water spraying assembly, is fixed on the inner wall of the cylinder screen outer cover through a bracket, and the higher end of the arc chute is positioned at the feeding end of the cylinder screen body, and the lower end of the arc chute is positioned at the discharging end of the cylinder screen body; a pulp outlet hopper arranged below the cylindrical screen body, wherein the pulp filtered by the cylindrical screen body falls into the pulp outlet hopper; the slag hopper is arranged at the side part of the slurry outlet hopper and is fixed on the inner wall of the outer cover of the cylinder screen, and the slag falling on the cylinder screen body falls into the slag hopper along the arc chute. The utility model can realize the efficient cleaning of the cylinder screen.
Description
Technical Field
The utility model relates to the technical field of coal gasification equipment cleaning, in particular to a cylinder screen cleaning device of a coal water slurry mill.
Background
The pressurized coal water slurry gasifier generally uses a rod mill or a ball mill to grind coal entering the gasifier, and the outlet of the mill is provided with a screen, so that the pressurized coal water slurry gasifier has the function of filtering the coal water slurry and preventing sundries from entering a high-pressure coal slurry pump and a gasifier burner. At present, during normal production, the screen of the mill is usually washed by adopting production water regularly, but after the screen holes are blocked by hard particles, foreign matters are difficult to wash out by general washing water, the concentration of the water-coal slurry can be influenced by excessive washing water, so that various consumption is increased, along with the extension of the operation time, the screen of the mill is more and more blocked, the slurry leakage of the mill is easily caused after the screen holes are too much blocked, and the screen is required to be manually checked and thoroughly cleaned every time the mill is stopped.
Disclosure of Invention
Aiming at the needs and the defects of the prior art development, the utility model provides a cylinder screen cleaning device of a coal water slurry mill.
The utility model relates to a cylinder screen cleaning device of a coal water slurry mill, which solves the technical problems and adopts the following technical scheme:
the utility model provides a drum sieve cleaning device of coal water slurry mill, the device is installed on drum sieve dustcoat for clear up drum sieve body, its structure includes:
the water spraying end of the high-pressure water spraying assembly downwards passes through the outer cover of the cylindrical screen and then is opposite to the cylindrical screen body;
the arc chute is obliquely arranged in the cylinder screen body, is positioned right below the water spraying end of the high-pressure water spraying assembly, is fixed on the inner wall of the cylinder screen outer cover through a bracket, the higher end of the arc chute is positioned at the feeding end of the cylinder screen body, and the lower end of the arc chute is positioned at the discharging end of the cylinder screen body;
a pulp outlet hopper arranged below the cylindrical screen body, wherein the pulp filtered by the cylindrical screen body falls into the pulp outlet hopper;
the slag hopper is arranged at the side part of the slurry outlet hopper and is fixed on the inner wall of the outer cover of the cylinder screen, and the slag falling on the cylinder screen body falls into the slag hopper along the arc chute.
Optionally, when the high-pressure water spraying assembly works, the water spraying end of the high-pressure water spraying assembly washes the surface of the cylindrical screen body, and sprayed water flow and slag on the surface of the cylindrical screen body all fall down on the arc chute and further fall into the slag hopper along the arc chute.
In order to further realize the cleaning of the cylinder screen, the cylinder screen cleaning device further comprises a cylinder brush, and burrs are covered on the surface of the cylinder brush;
the roller brush is arranged between the cylinder screen outer cover and the cylinder screen body, the end part of the roller brush is connected with the cylinder screen outer cover, and burrs covered on the surface of the roller brush are in friction contact with the surface of the cylinder screen body.
Preferably, the number of roller brushes is at least one;
the central axis of the roller brush is parallel to the central axis of the cylinder screen body.
Preferably, the arrangement direction of the roller brush is parallel to the arrangement direction of the arc chute.
Specifically, the high-pressure water spraying assembly comprises a water tank and a high-pressure water pump, wherein the water inlet end of the high-pressure water pump is communicated with the water tank through a pipeline, the water outlet end of the high-pressure water pump is communicated with a plurality of high-pressure spray pipes, the high-pressure spray pipes downwards penetrate through the outer cover of the cylinder screen and then are communicated with a high-pressure spray head, and the high-pressure spray head is opposite to the surface of the cylinder screen body.
Specifically, the support includes two connecting rods, and connecting rod one end is connected cylinder screen dustcoat inner wall, and the arc chute is connected to the other end.
More specifically, the connecting rod comprises an outer cover fixing rod and a chute fixing rod, the ends of the outer cover fixing rod and the chute fixing rod are connected through bolts, the other end of the outer cover fixing rod is fixed on the inner wall of the outer cover of the cylinder screen, and the other end of the chute fixing rod is fixed on the arc chute.
Compared with the prior art, the cylinder screen cleaning device of the coal water slurry mill has the beneficial effects that:
(1) The utility model prevents the water flow for flushing the cylindrical screen from entering the coal slurry system, ensures the stable concentration of the coal slurry, and ensures that the flushed water-coal slurry slag directly enters the slag hopper through the arc chute, so that slag particles do not fall into the cylindrical screen any more, thereby preventing the possibility of blocking the screen holes of the cylindrical screen body again;
(2) The utility model adopts the unpowered roller brush to clean the cylinder screen body in the working process of filtering the water-coal-slurry by the cylinder screen;
(3) The arc chute is connected with the cylinder screen outer cover through the detachable connecting rod, so that the arc chute is convenient to detach and clean.
Drawings
FIG. 1 is a front view of a structure of a first embodiment of the present utility model;
FIG. 2 is a front view of a drum brush arranged between a drum screen cover and a drum screen body in a second embodiment of the present utility model;
FIG. 3 is a right side view of the partial structure of FIG. 2;
fig. 4 is a schematic structural view of a three-bracket according to an embodiment of the present utility model.
The reference numerals in the drawings represent:
1. a discharge end of the mill, 2, a cylinder screen cover, 3, a high-pressure spray pipe, 4, a high-pressure water pump,
5. pipeline 6, water tank 7, high-pressure spray head 8, bracket 9, slag hopper,
10. an arc chute 11, a cylinder screen body 12, a slag outlet 13 and a slurry outlet,
14. a pulp outlet hopper 15, an outer cover fixing rod 16, a chute fixing rod 17 and a roller brush,
18. burrs, 19, bolts.
Detailed Description
In order to make the technical scheme, the technical problems to be solved and the technical effects of the utility model more clear, the technical scheme of the utility model is clearly and completely described below by combining specific embodiments.
Embodiment one:
referring to fig. 1, this embodiment provides a cleaning device for a cylindrical screen of a coal water slurry mill, the device is installed on a cylindrical screen housing 2, and is used for cleaning a cylindrical screen body 11, and the structure thereof includes: the high-pressure water spraying assembly, the arc chute 10, the pulp outlet hopper 14 and the slag outlet hopper 9.
The high-pressure water spraying assembly comprises a water tank 6 and a high-pressure water pump 4, wherein the water inlet end of the high-pressure water pump 4 is communicated with the water tank 6 through a pipeline 5, the water outlet end of the high-pressure water pump 4 is communicated with a plurality of high-pressure spray pipes 3, the high-pressure spray pipes 3 downwards penetrate through the cylinder screen outer cover 2 and then are communicated with a high-pressure spray head 7, and the high-pressure spray head 7 is opposite to the surface of the cylinder screen body 11.
The arc chute 10 is obliquely arranged in the cylindrical screen body 11 and is positioned right below the high-pressure spray head 7 of the high-pressure water spray assembly. The arc chute 10 is fixed on the inner wall of the cylinder screen housing 2 through the bracket 8, and the higher end of the arc chute 10 is positioned at the feeding end of the cylinder screen body 11, and the lower end of the arc chute 10 is positioned at the discharging end of the cylinder screen body 11.
A slurry outlet hopper 14 is arranged below the cylindrical screen body 11, and slurry filtered by the cylindrical screen body 11 falls down on the slurry outlet hopper 14 and enters the coal slurry system through a slurry outlet 13 of the slurry outlet hopper 14.
The slag bucket 9 is fixed on the inner wall of the cylinder screen housing 2 and is positioned on one side of the pulp outlet bucket 14, and the slag falling on the cylinder screen body 11 falls to the slag bucket 9 along the arc chute 10 and is discharged through the slag outlet 12 of the slag bucket 9.
In this embodiment, in order to better process the slag falling on the cylindrical screen body 11, when the high-pressure water spraying assembly works, the high-pressure spray nozzle 7 washes the surface of the cylindrical screen body 11, and the sprayed water flow and the slag on the surface of the cylindrical screen body 11 all fall down on the arc chute 10 and further fall into the slag hopper 9 along the arc chute 10.
The cleaning flow of the cylindrical screen based on the cleaning device of the cylindrical screen of the embodiment is as follows:
when the coal water slurry grinder is in a normal running state, the ground coal water slurry enters a cylindrical screen from a discharge end 1 of the grinder, then falls into a slurry outlet hopper 14 after being filtered by the cylindrical screen, in the process, a high-pressure water spraying assembly is started, a high-pressure spray nozzle 7 washes a cylindrical screen body 11, and water coal slurry slag adhered to the surface of the cylindrical screen body 11 falls into an arc chute 10 under the action of the high-pressure spray nozzle 7 and further falls into a slag outlet hopper 9 along the arc chute 10 along with water flow.
It is to be added that in the whole cleaning process of the cylindrical screen, water flow does not enter the slurry outlet hopper 14 along with the filtered water-coal slurry of the cylindrical screen, so that the concentration stability of the coal slurry can be ensured, and the water-coal slurry slag flushed by the high-pressure spray nozzle 7 does not fall into the cylindrical screen body 11 again, but directly falls into the slag outlet hopper 9 along the arc chute 10.
Embodiment two:
referring to fig. 1, 2 and 3, on the basis of the first embodiment, the cleaning device for a cylindrical screen of the present embodiment further includes a roller brush 17, and burrs 18 are covered on the surface of the roller brush 17.
The roller brush 17 is arranged between the cylinder screen housing 2 and the cylinder screen body 11, the end part of the roller brush 17 is fixedly connected with the cylinder screen housing 2, and burrs 18 covered on the surface of the roller brush 17 are in friction contact with the surface of the cylinder screen body 11.
According to the cylinder screen cleaning device, in the process of filtering coal water slurry by the cylinder screen, burrs 18 covered on the surface of the roller brush 17 are in friction contact with the surface of the cylinder screen body 11, so that the cylinder screen body 11 is cleaned in real time, and the cylinder screen body 11 is prevented from being blocked along with the extension of the filtering operation time.
It should be noted that the number of the roller brushes 17 is not limited to one; the central axis of the roller brush 17 may be parallel to the central axis of the cylindrical screen body 11 or may be parallel to the arrangement direction of the arc chute 10.
The cleaning flow of the cylindrical screen based on the cleaning device of the cylindrical screen of the embodiment is as follows:
when the water-coal-slurry mill is in a normal running state, the ground water-coal slurry enters a cylindrical screen from a discharge end 1 of the mill and then falls into a slurry outlet hopper 14 after being filtered by the cylindrical screen, in the process, (1) a high-pressure water spray assembly is started, a high-pressure spray nozzle 7 washes a cylindrical screen body 11, water-coal slurry slag adhered on the surface of the cylindrical screen body 11 falls into an arc chute 10 under the action of the high-pressure spray nozzle 7 and further falls into a slag outlet hopper 9 along the arc chute 10 along with water flow, (2) burrs 18 covered on the surface of a roller brush 17 are in friction contact with the surface of the cylindrical screen body 11 so as to instantly friction water-coal slurry slag adhered on the surface of the cylindrical screen body 11, and the water-coal slurry slag is adhered on the surface of the roller brush 17 or falls into the slurry outlet hopper 14; under the action of (1) and (2), the cleaning of the cylinder screen body 11 is realized.
Embodiment III:
referring to fig. 1, 2, 3 and 4, in the cleaning device for a cylindrical screen according to the first or second embodiment, the bracket 8 connecting the arc chute 10 and the cylindrical screen housing 2 includes two connecting rods, one end of each connecting rod is connected to the inner wall of the cylindrical screen housing 2, and the other end is connected to the arc chute 10.
In order to realize the cleaning of the arc chute 10, the arc chute 10 is detachably connected with the cylinder screen outer cover 2, at this time, the structure of the connecting rod further comprises an outer cover fixing rod 15 and a chute fixing rod 16, the ends of the outer cover fixing rod 15 and the chute fixing rod 16 are connected through bolts 19, the other end of the outer cover fixing rod 15 is fixed on the inner wall of the cylinder screen outer cover 2, and the other end of the chute fixing rod 16 is fixed on the arc chute 10.
In summary, the cylindrical screen cleaning device of the water-coal-slurry mill, which is disclosed by the utility model, prevents water flow for flushing the cylindrical screen from entering a coal slurry system, ensures stable concentration of coal slurry, ensures that flushed water-coal slurry slag directly enters the slag hopper 9 through the arc chute 10, prevents slag particles from falling into the cylindrical screen, and prevents the possibility of blocking the screen holes of the cylindrical screen body 11 again.
The foregoing has outlined rather broadly the principles and embodiments of the present utility model in order that the detailed description of the utility model may be better understood. Based on the above-mentioned embodiments of the present utility model, any improvements and modifications made by those skilled in the art without departing from the principles of the present utility model should fall within the scope of the present utility model.
Claims (8)
1. The utility model provides a drum sieve cleaning device of coal slurry mill, the device is installed on drum sieve dustcoat for clear up drum sieve body, its characterized in that, its structure includes:
the water spraying end of the high-pressure water spraying assembly downwards passes through the outer cover of the cylindrical screen and then is opposite to the cylindrical screen body;
the arc chute is obliquely arranged in the cylinder screen body, is positioned right below the water spraying end of the high-pressure water spraying assembly, is fixed on the inner wall of the cylinder screen outer cover through a bracket, the higher end of the arc chute is positioned at the feeding end of the cylinder screen body, and the lower end of the arc chute is positioned at the discharging end of the cylinder screen body;
a pulp outlet hopper arranged below the cylindrical screen body, wherein the pulp filtered by the cylindrical screen body falls into the pulp outlet hopper;
the slag bucket is arranged at the side part of the slurry outlet bucket, the slag bucket is fixed on the inner wall of the outer cover of the cylinder screen, and the falling slag on the cylinder screen body falls into the slag bucket along the arc chute.
2. The cleaning device for cylinder screen of coal water slurry grinder according to claim 1, wherein the water spraying end of the high pressure water spraying assembly washes the surface of the cylinder screen body when the high pressure water spraying assembly works, and the sprayed water flow and slag on the surface of the cylinder screen body all fall down on the arc chute and further fall down along the arc chute into the slag hopper.
3. The cylindrical screen cleaning device of a coal water slurry mill according to claim 1, further comprising a roller brush, wherein the surface of the roller brush is covered with burrs;
the roller brush is arranged between the cylinder screen outer cover and the cylinder screen body, the end part of the roller brush is connected with the cylinder screen outer cover, and burrs covered on the surface of the roller brush are in friction contact with the surface of the cylinder screen body.
4. A cylindrical screen cleaning apparatus for a coal water slurry mill according to claim 3, wherein the number of the roller brushes is at least one;
the central axis of the roller brush is parallel to the central axis of the cylindrical screen body.
5. A cylindrical screen cleaning apparatus for a coal water slurry mill according to claim 3, wherein the direction of arrangement of the roller brushes is parallel to the direction of arrangement of the arc chute.
6. The cylindrical screen cleaning device of a coal water slurry mill according to claim 1, wherein the high-pressure water spraying assembly comprises a water tank and a high-pressure water pump, a water inlet end of the high-pressure water pump is communicated with the water tank through a pipeline, a water outlet end of the high-pressure water pump is communicated with a plurality of high-pressure spray pipes, the high-pressure spray pipes penetrate downwards through a cylindrical screen housing and are communicated with a high-pressure spray head, and the high-pressure spray head is opposite to the surface of the cylindrical screen body.
7. The cylindrical screen cleaning device of a coal water slurry mill according to claim 1, wherein the support comprises two connecting rods, one ends of the connecting rods are connected with the inner wall of the outer cover of the cylindrical screen, and the other ends of the connecting rods are connected with the arc chute.
8. The cylindrical screen cleaning device of a coal water slurry grinder according to claim 7, wherein the connecting rod comprises a cover fixing rod and a chute fixing rod, the ends of the cover fixing rod and the chute fixing rod are connected through bolts, the other end of the cover fixing rod is fixed on the inner wall of the cover of the cylindrical screen, and the other end of the chute fixing rod is fixed on the arc chute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223201314.7U CN219483316U (en) | 2022-12-01 | 2022-12-01 | Drum screen cleaning device of coal water slurry mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223201314.7U CN219483316U (en) | 2022-12-01 | 2022-12-01 | Drum screen cleaning device of coal water slurry mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219483316U true CN219483316U (en) | 2023-08-08 |
Family
ID=87513547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223201314.7U Active CN219483316U (en) | 2022-12-01 | 2022-12-01 | Drum screen cleaning device of coal water slurry mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219483316U (en) |
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2022
- 2022-12-01 CN CN202223201314.7U patent/CN219483316U/en active Active
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