CN210561446U - Cleaning equipment of fourdrinier paper machine - Google Patents

Abstract

The utility model discloses a cleaning equipment of fourdrinier paper machine, its technical scheme main points are: including paper machine wire section, set up at the water catch bowl of paper machine wire section below, be in the water jet equipment of paper machine wire section top, the water supply system who is connected with water jet equipment, water supply system includes high pressure water supply installation and low pressure water supply installation, and the water catch bowl is equipped with first drain pipe and second drain pipe, all is equipped with the valve on first drain pipe and the second drain pipe. The low-pressure water supply device is used for supplying low-pressure water to the water spraying device, the light paper pulp on the net part of the paper machine easily flows into the water collecting tank along with the low-pressure water flow and is recycled through the first drainage pipe, the high-pressure water supply device is used for supplying high-pressure water to the water spraying device, the pulp lumps are washed down by the strong impact force of the high-pressure water, and the waste water mixed with the pulp lumps is discharged through the second drainage pipe, so that the recycling of the light paper pulp attached to the net part of the paper machine is realized, and the interference of the pulp lumps on recycling is reduced.

Description

Cleaning equipment of fourdrinier paper machine

Technical Field

The utility model relates to a paper machine technical field, in particular to fourdrinier paper machine's cleaning equipment.

Background

Paper machines are the combined equipment of paper making, and there are three main types of traditional paper machines: fourdrinier, cylinder and gap machines, of which fourdrinier is a widely used paper machine type, which can make most paper varieties and is the mainstream machine of paper machines.

When the fourdrinier machine is used for long-term production, paper pulp is easy to attach to a net part of the fourdrinier machine, meshes in the net part are gradually blocked by the paper pulp, and the net part cannot meet the dehydration requirement of the paper pulp, so that the wet paper web is poor in forming, and the paper which meets the requirement cannot be produced.

Many manufacturers therefore produce various cleaning devices for cleaning the wire section of fourdrinier machines, the most common cleaning means in which is to flush the wire section with high-pressure water jets. However, the washing with the high-pressure water jets flushes the light pulp adhering to the wire section together with the non-recoverable pulp lumps. If the light pulp is to be recycled, the pulp and the pulp lumps need to be separated, and a special separation device needs to be arranged, so that the recycling cost is increased.

SUMMERY OF THE UTILITY MODEL

To the deficiency that prior art exists, the utility model aims to provide a fourdrinier paper machine's cleaning equipment, it has the advantage that the convenience carries out recycle to the light paper pulp of adhering to on the net portion.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a fourdrinier paper machine's cleaning equipment, includes the paper machine wire section, still including setting up at the water catch bowl of paper machine wire section below, be in the water jet equipment of paper machine wire section top, the water supply system who is connected with water jet equipment, water supply system includes high pressure water supply installation and low pressure water supply installation, the bottom of water catch bowl is equipped with the first drain pipe that is used for retrieving paper pulp and is used for the second drain pipe of discharge waste water, all be equipped with the valve on first drain pipe and the second drain pipe.

Through the technical scheme, when the net part of the paper machine is cleaned, low-pressure water is supplied to the water spraying device by the low-pressure water supply device firstly, the flow speed of the low-pressure water is low, the impact on the net part of the paper machine is small, light paper pulp attached to the net part of the paper machine easily flows into the water collecting tank along with the low-pressure water flow and is recycled through the first drain pipe, pulp blocks are adhered to the net part of the paper machine and are not easily brushed down by the low-pressure water, then the high-pressure water supply device is used for supplying high-pressure water to the water spraying device, the pulp blocks are washed down by the high-pressure water, and waste water mixed with the pulp blocks is discharged through the second drain pipe, so that the recycling of the light paper pulp attached to the net part of the paper machine is realized, and the interference of the.

Preferably, the water spraying device comprises a fixed frame arranged above the net part of the paper machine, a sliding plate slidably connected in the fixed frame, a high-pressure water pipe and a low-pressure water pipe which are arranged on the sliding plate, wherein a moving component for driving the sliding plate to move back and forth is arranged on the fixed frame, the sliding plate stretches across the net part of the paper machine, the high-pressure water pipe and the low-pressure water pipe are both arranged on one side, facing the net part of the paper machine, of the sliding plate, the high-pressure water pipe and the low-pressure water pipe are both arranged in parallel to the sliding plate, a plurality of nozzles are uniformly distributed on the high-pressure water pipe and the low-pressure water pipe along the length direction of the sliding plate, the.

According to the technical scheme, in the cleaning process, the sliding plate is driven by the moving assembly to move back and forth above the net part of the paper machine along the length direction of the net part of the paper machine, only one high-pressure water pipe and one low-pressure water pipe are needed and cover the width direction of the net part of the paper machine, and the using number of the water pipes is reduced; and the movable water spraying mode of the high-pressure water pipe and the low-pressure water pipe can be used for more fully cleaning the net part of the paper machine, so that the cleaning effect is improved.

Preferably, the moving assembly comprises a first motor, a rotating rod, two first gears and two first racks, the rotating rod is rotatably connected to the sliding plate, two ends of the rotating rod respectively penetrate through two ends of the sliding plate, the two first gears are respectively fixed to two ends of the rotating rod, the two first racks are respectively located on two sides of the top of the fixing frame, the two first gears are respectively meshed with the two first racks, the first motor is fixed to the sliding plate, an output shaft of the first motor is parallel to the rotating rod, a driving gear is arranged on the output shaft of the first motor, and the driving gear is meshed with any first gear.

Through the technical scheme, when the first motor rotates, the driving gear is driven by the first motor, and then the driving gear drives the first gear which is meshed and connected to rotate, so that the rotating rod also synchronously rotates, and the sliding plate linearly moves under the matching of the first gear and the first rack on the corresponding side; the sliding plate can move back and forth on the fixed frame by controlling the rotation direction of the output shaft of the first motor.

Preferably, the water collecting tank is provided with a first baffle and a second baffle, the first baffle and the second baffle are respectively positioned at two sides of the water collecting tank and close to the top of the fixing frame, and the first baffle and the second baffle are both perpendicular to the sliding plate.

Through above-mentioned technical scheme, when using high pressure water pipe to wash paper machine wire section, because the water pressure is high, the velocity of flow is fast, and the splash appears very easily when rivers impact paper machine wire section, and first baffle and second baffle can reduce rivers and splash away, reduce rivers and splash the possibility of pedestrian.

Preferably, the two ends of the first baffle are respectively connected to the inner walls of the two ends of the water collecting tank in a sliding manner, and a lifting assembly for driving the first baffle to move is arranged on the side wall, close to the first baffle, of the water collecting tank.

Through the technical scheme, when the net part of the paper machine is used for papermaking and does not need to be cleaned, the first baffle is lowered, so that workers can conveniently observe the working condition of the net part of the paper machine; when the net part of the paper machine needs to be cleaned, the first baffle is lifted, the operation is flexible, and the device is suitable for switching different working states of the net part of the paper machine.

Preferably, the lifting assembly comprises a second motor, a second gear and a second rack, the second motor is fixed to the top of the side wall of the water collecting tank, an output shaft of the second motor is parallel to the first baffle, the second gear is coaxially connected with the output shaft of the second motor, the second rack is installed on the side wall of the first baffle, which faces the second motor, the length direction of the second rack is parallel to the width direction of the first baffle, and the second rack and the second gear are meshed with each other and connected.

Through the technical scheme, the output shaft of the second motor rotates to drive the second gear to rotate, and the second gear rotates to drive the second rack to move in the vertical direction, so that the first baffle is driven to lift, and the direction of movement of the first baffle can be controlled by controlling the rotation direction of the second motor.

Preferably, the high-pressure water supply device comprises a reservoir, a high-pressure water pump and a first connecting pipe, wherein the first connecting pipe is sequentially connected with the reservoir, the high-pressure water pump and the high-pressure water pipe; the low-pressure water supply device comprises a reservoir, a low-pressure water pump and a second connecting pipe, the second connecting pipe is sequentially connected with the reservoir, the low-pressure water pump and the low-pressure water pipe, and the reservoir in the high-pressure water supply device and the reservoir in the low-pressure water supply device are the same.

Through above-mentioned technical scheme, the use to the production place can be reduced to a sharing cistern, and the low pressure water that flows out only need use the low pressure water pump with the ordinary pressure water in the cistern take out to the low pressure water pipe can in the low pressure water pipe, and the high pressure water in the high pressure water pipe then needs the high pressure water pump to carry out the pressure boost.

Preferably, one end of the second drain pipe, which is far away from the water collecting tank, is positioned right above the water storage tank, and a filter screen for filtering waste residues discharged by the second drain pipe is arranged in the water storage tank.

Through above-mentioned technical scheme, the cistern is arranged into to the waste water that will thoughtlessly have the thick liquid piece to the second drain pipe, and the thick liquid piece in the waste water is filtered out by the filter screen, reduces high pressure water pipe and low pressure water pipe and do not block up the possibility, and the waste water after rejecting the thick liquid piece can be used for again wasing paper machine wire section, makes the water resource obtain reuse.

To sum up, the utility model discloses the beneficial effect who contrasts in prior art does:

1. by setting two cleaning modes of high pressure and low pressure, paper pulp in the mesh part of the paper machine is recovered firstly, and then pulp lumps on the mesh part of the paper machine are thoroughly cleaned, so that the resource utilization rate is improved, and the difficulty of resource recovery is reduced;

2. by arranging the movable water spraying device, the net part of the paper machine can be conveniently cleaned, the number of the water pipes is reduced, and the water spraying effect is better;

3. through setting up first baffle and second baffle, reduce the splash that causes when high-pressure rivers wash, reduce the workman and pass the time by the possibility of drenching.

Drawings

FIG. 1 is a schematic view of the overall structure of the embodiment;

FIG. 2 is an enlarged view of A in FIG. 1;

FIG. 3 is an enlarged view of B in FIG. 1;

FIG. 4 is a partial sectional view in the embodiment;

fig. 5 is a schematic structural diagram of a water supply system in the embodiment.

Reference numerals: 1. the wire section of the paper machine; 2. a water collection tank; 21. a first baffle plate; 22. a second baffle; 3. a water spraying device; 31. a fixed mount; 32. a sliding plate; 33. a high pressure water pipe; 34. a low-pressure water pipe; 35. a nozzle; 36. a moving assembly; 361. a first motor; 362. rotating the rod; 363. a first gear; 364. a first rack; 365. a driving gear; 4. a first drain pipe; 5. a second drain pipe; 6. a lifting assembly; 61. a second motor; 62. a second gear; 63. a second rack; 7. a water supply system; 71. a reservoir; 711. a filter screen; 72. a first connecting pipe; 73. a second connecting pipe; 74. a high pressure water pump; 75. a low-pressure water pump; 8. a guide rod.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A cleaning device of a fourdrinier paper machine is shown in figure 1 and comprises a paper machine net part 1, a water collecting tank 2 arranged below the paper machine net part 1, a water spraying device 3 arranged above the paper machine net part 1 and a water supply system 7 communicated with the water spraying device 3, wherein a first water discharging pipe 4 connected with subsequent paper pulp recovery equipment and a second water discharging pipe 5 connected with the water spraying device 3 are arranged at the bottom of the water collecting tank 2, and valves are arranged on the first water discharging pipe 4 and the second water discharging pipe 5. The water supply system 7 can provide clear water in two states of high pressure and low pressure for the water spraying device 3, so that the recovery of light paper pulp on the net part 1 of the paper machine is facilitated, and the resource recovery utilization rate is improved.

Referring to fig. 1 and 4, the water spraying device 3 includes a fixed frame 31 built in the space above the paper machine net part 1, a sliding plate 32 slidably connected to the top of the fixed frame 31, a high pressure water pipe 33 and a low pressure water pipe 34 installed on the sliding plate 32, a moving assembly 36 for driving the sliding plate 32 to move back and forth is provided on the fixed frame 31, the sliding plate 32 spans over the paper machine net part 1, the high pressure water pipe 33 and the low pressure water pipe 34 are both located on one side of the sliding plate 32 facing the paper machine net part 1, the high pressure water pipe 33 and the low pressure water pipe 34 are both arranged in parallel to the sliding plate 32, and a plurality of nozzles 35 are uniformly distributed on the high pressure water pipe 33 and the low pressure water pipe.

Referring to fig. 1 and 2, the moving assembly 36 includes a first motor 361, a rotating rod 362, two first gears 363 and two first racks 364, the rotating rod 362 is rotatably connected to the sliding plate 32, two ends of the rotating rod 362 respectively penetrate through two ends of the sliding plate 32, the two first gears 363 are respectively fixed to two ends of the rotating rod 362, the two first racks 364 are respectively located at two sides of the top of the fixing frame 31, the two first gears 363 are respectively engaged with the two first racks 364, the first motor 361 is fixed to the sliding plate 32, an output shaft of the first motor 361 is parallel to the rotating rod 362, and a driving gear 365 is arranged on the output shaft of the first motor 361, and the driving gear 365 is engaged with any one of the first gears 363.

Referring to fig. 1 and 3, a first baffle 21 and a second baffle 22 are provided on the water collection tank 2. One end of the second baffle 22 is fixed on the top of the side wall on one side of the water collecting tank 2, the other end of the second baffle 22 is vertically upward and close to the top of the fixing frame 31, and the side wall of one side of the second baffle 22 facing the net part 1 of the paper machine and the inner wall of the corresponding side of the water collecting tank 2 are positioned on the same plane. Both ends of first baffle 21 are sliding connection respectively on the both ends inner wall of water catch bowl 2, and the slip direction of first baffle 21 is the same with the direction of height of water catch bowl 2 lateral wall. The first baffle 21 is close to the side wall of the water collecting tank 2 far away from the second baffle 22, and the side wall of the water collecting tank 2 close to the first baffle 21 is provided with a lifting assembly 6 for driving the first baffle 21 to move. The lifting assembly 6 comprises a second motor 61, a second gear 62 and a second rack 63, the second motor 61 is fixed on the top of the side wall of the water collecting tank 2, the output shaft of the second motor 61 is parallel to the first baffle 21, and the second gear 62 is coaxially connected with the output shaft of the second motor 61. The second rack 63 is installed on the sidewall of the first baffle 21 facing the second motor 61, an avoiding groove (not shown) for accommodating the second rack 63 is provided on the sidewall of the water collecting tank 2 attached to the first baffle 21, the length direction of the second rack 63 is parallel to the width direction of the first baffle 21, and the second rack 63 and the second gear 62 are engaged with each other.

Referring to fig. 1 and 5, the water supply system 7 includes a water reservoir 71, a high pressure water pump 74, a first connection pipe 72, a low pressure water pump 75, and a second connection pipe 73, wherein the first connection pipe 72 is connected to the water reservoir 71, the high pressure water pump 74, and the high pressure water pipe 33 in sequence; the second connection pipe 73 is connected to the water reservoir 71, the low pressure water pump 75, and the low pressure water pipe 34 in sequence. Two guide rods 8 are arranged between the water reservoir 71 and the water collecting tank 2, the tops of the guide rods 8 are arranged higher than the fixed frame 31, and the first connecting pipe 72 and the second connecting pipe 73 respectively penetrate through the tops of the two guide rods 8 and are respectively connected to the middle positions of the high-pressure water pipe 33 and the low-pressure water pipe 34. As the sliding plate 32 moves the high pressure water pipe 33 and the low pressure water pipe 34, the respective ends of the first connection pipe 72 and the second connection pipe 73 can move together and friction does not easily occur with the fixed frame 31. A filter screen 711 transversely intercepted in the reservoir 71 is arranged in the reservoir 71, one end of the second discharge pipe 5 far away from the water collecting tank 2 is positioned in the reservoir 71 and right above the filter screen 711, and the openings of the first connecting pipe 72 and the second connecting pipe 73 on the reservoir 71 are positioned below the filter screen 711.

In operation, after the paper machine wire part 1 completes one wet paper web forming, the second motor 61 is started, the first baffle 21 is lifted through the transmission of the second gear 62 and the second rack 63, the valve of the second water discharge pipe 5 is closed, the valve of the first water discharge pipe 4 is opened, and then the low pressure water pump 75 is started to spray water with a slower flow speed in the nozzle 35 of the low pressure water pipe 34. The first motor 361 is started and the first motor 361 is controlled to rotate clockwise and anticlockwise at regular time, so that the sliding plate 32 drives the low-pressure water pipe 34 and the high-pressure water pipe 33 to move in a reciprocating mode above the paper machine net part 1, and paper pulp on the paper machine net part 1 is recycled through the first drainage pipe 4 along with water flow. After the paper machine wire 1 has been cleaned two to three times by the low pressure water pipe 34, the first drain pipe 4 is closed, the low pressure water pump 75 is stopped, and the high pressure water pump 74 is started to flush the paper machine wire 1 with the high pressure water stream ejected from the nozzles 35 of the high pressure water pipe 33. After the water is completely washed, the high-pressure water pump 74 and the first motor 361 are stopped, the second drain pipe 5 is opened, and the wastewater in the water collecting tank 2 is discharged into the reservoir 71 for filtering and precipitating, so that the utilization rate of water resources is improved.

The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention, which is defined by the appended claims.

Claims (8)

1. A fourdrinier machine cleaning apparatus comprising a paper machine wire section (1), characterized by: still including setting up water catch bowl (2) in paper machine wire part (1) below, be in water jet equipment (3) of paper machine wire part (1) top, water supply system (7) be connected with water jet equipment (3), water supply system (7) include high pressure water supply equipment and low pressure water supply equipment, the bottom of water catch bowl (2) is equipped with first drain pipe (4) that are used for retrieving paper pulp and second drain pipe (5) that are used for the waste water of discharging, all be equipped with the valve on first drain pipe (4) and second drain pipe (5).

2. A fourdrinier machine cleaning apparatus according to claim 1, characterized in that: the water spraying device (3) comprises a fixed frame (31) arranged above a paper machine net part (1), a sliding plate (32) connected in the fixed frame (31) in a sliding manner, a high-pressure water pipe (33) and a low-pressure water pipe (34) arranged on the sliding plate (32), wherein a moving component (36) for driving the sliding plate (32) to move back and forth is arranged on the fixed frame (31), the sliding plate (32) stretches across the paper machine net part (1), the high-pressure water pipe (33) and the low-pressure water pipe (34) are both arranged on one side, facing the paper machine net part (1), of the sliding plate (32), the high-pressure water pipe (33) and the low-pressure water pipe (34) are both arranged in parallel to the sliding plate (32), a plurality of nozzles (35) are uniformly distributed on the high-pressure water pipe (33) and the low-pressure water pipe (34) along the length direction of the sliding plate (32), and the high-pressure, the low-pressure water supply device is connected with a low-pressure water pipe (34).

3. A fourdrinier machine cleaning apparatus according to claim 2, characterized in that: the moving component (36) comprises a first motor (361), a rotating rod (362), two first gears (363) and two first racks (364), the rotating rod (362) is rotatably connected to the sliding plate (32), two ends of the rotating rod (362) respectively penetrate through two ends of the sliding plate (32), two first gears (363) are respectively fixed to two ends of the rotating rod (362), two first racks (364) are respectively arranged on two sides of the top of the fixing frame (31), the two first gears (363) are respectively connected with the two first racks (364) in a meshed manner, the first motor (361) is fixed on the sliding plate (32), the output shaft of the first motor (361) is arranged in parallel with the rotating rod (362), and an output shaft of the first motor (361) is provided with a driving gear (365), and the driving gear (365) is meshed with any first gear (363).

4. A fourdrinier machine cleaning apparatus according to claim 1, characterized in that: the water collecting tank (2) is provided with a first baffle (21) and a second baffle (22), the first baffle (21) and the second baffle (22) are respectively positioned at two sides of the water collecting tank (2) and are close to the top of the fixed frame (31), and the first baffle (21) and the second baffle (22) are both vertical to the sliding plate (32).

5. A fourdrinier machine cleaning apparatus according to claim 4, characterized in that: the both ends of first baffle (21) are sliding connection respectively on the both ends inner wall of water catch bowl (2), be equipped with on the lateral wall that is close to first baffle (21) of water catch bowl (2) and drive first baffle (21) removal lifting unit (6).

6. The fourdrinier machine cleaning apparatus of claim 5, wherein: the lifting assembly (6) comprises a second motor (61), a second gear (62) and a second rack (63), the second motor (61) is fixed to the top of the side wall of the water collecting tank (2), an output shaft of the second motor (61) is parallel to the first baffle (21), the second gear (62) is coaxially connected with the output shaft of the second motor (61), the second rack (63) is installed on the side wall, facing the second motor (61), of the first baffle (21), the length direction of the second rack (63) is parallel to the width direction of the first baffle (21), and the second rack (63) is meshed with the second gear (62) and connected with the first baffle.

7. A fourdrinier machine cleaning apparatus according to claim 2, characterized in that: the high-pressure water supply device comprises a water storage tank (71), a high-pressure water pump (74) and a first connecting pipe (72), wherein the first connecting pipe (72) is sequentially connected with the water storage tank (71), the high-pressure water pump (74) and the high-pressure water pipe (33); the low-pressure water supply device comprises a water storage tank (71), a low-pressure water pump (75) and a second connecting pipe (73), the second connecting pipe (73) is sequentially connected with the water storage tank (71), the low-pressure water pump (75) and the low-pressure water pipe (34), and the water storage tank (71) in the high-pressure water supply device and the water storage tank (71) in the low-pressure water supply device are the same.

8. A fourdrinier machine cleaning apparatus according to claim 7, wherein: one end, far away from the water collecting tank (2), of the second water discharging pipe (5) is located right above the water storage tank (71), and a filter screen (711) for filtering waste residues discharged by the second water discharging pipe (5) is arranged in the water storage tank (71).

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