Automatic cleaning device for drying net of drying part of paper machine

Abstract

An automatic cleaning device for a dry net of a drying part of a paper machine relates to the technical field of cleaning devices and comprises a fixedly arranged cross beam frame, a sliding seat is arranged on the side wall, facing a guide roller, of the cross beam frame in a reciprocating sliding mode in the axial direction of the guide roller, and a cleaning spray head and a negative pressure suction shell are arranged on the sliding seat from top to bottom in parallel. The negative pressure suction shell is connected with a cyclone separator, the lower end part of the cyclone separator is connected with a water seal tank, and the upper end part of the cyclone separator is connected with a vacuum fan. The rotary screen paper machine solves the problems that in the prior art, due to the fact that a rotary screen paper machine is low in speed and long in contact time of a dry screen and paper sheets, dry screen stains are more likely to be transferred to the paper sheets and equipment; the problems that according to an existing cleaning method, after shutdown, high-pressure water is manually used for cleaning, however, manual cleaning is difficult to complete, and residual water of a dry net can affect finished paper production are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning devices, in particular to an automatic cleaning device for a dryer wire of a paper machine drying section. Background Art

[0002] In the process of papermaking production, due to the influence of paper raw materials, filling, etc., during the paper drying process, some fibers, fillers, adhesives, etc. on the paper surface will transfer to the dryer wire, clogging the gaps of the dryer wire, resulting in a decrease in the air permeability of the dryer wire, affecting the paper drying rate. At the same time, some fibers, fillers, adhesives, etc. will transfer to the guide roll through the dryer wire, causing scale formation and deformation on the surface of the guide roll, affecting the operation of the dryer wire and even damaging the dryer wire.

[0003] A patent with a publication number of CN209397428U is disclosed in the prior art. The solution includes a feeding part, a gas supply part, and a spraying part. The feeding part includes a storage tank, a feeding pipe, and a metering pump; the gas supply part includes an air compressor and an air supply pipe; the spraying part includes a fixed bracket fixed above the papermaking machine frame. The fixed bracket is provided with a nozzle, and the nozzle includes a first inlet and a second inlet; the storage tank, the metering pump, and the first inlet are sequentially connected through the feeding pipe; the air compressor and the second inlet are connected through the air supply pipe. Using the dryer wire of the papermaking machine for cleaning work solves the technical problem that in the process of preparing new paper with waste paper as raw materials, the adhesives in the waste paper adhere to the dryer wire, causing pollution of the dryer wire.

[0004] The existing devices including the above patent gradually expose the deficiencies of the prior art during use, mainly manifested in the following aspects:

[0005] Due to the low speed of the cylinder paper machine, the contact time between the dryer wire and the paper is long, and the possibility of dryer wire stains transferring to the paper and equipment is greater;

[0006] The existing cleaning method is to manually use high-pressure water for cleaning after shutdown. However, manual cleaning is difficult to clean completely, and the residual moisture on the dryer wire will affect the production of the finished paper.

[0007] To sum up, the prior art obviously has inconveniences and defects in actual use, so it is necessary to improve. Summary of the Utility Model

[0008] Aiming at the defects in the prior art, the utility model is used to solve the problems in the traditional technology that due to the low speed of the cylinder paper machine, the contact time between the dryer wire and the paper is long, and the possibility of dryer wire stains transferring to the paper and equipment is greater; and the existing cleaning method is to manually use high-pressure water for cleaning after shutdown. However, manual cleaning is difficult to clean completely, and the residual moisture on the dryer wire will affect the production of the finished paper.

[0009] To achieve the above purpose, the utility model provides the following technical solutions:

[0010] The automatic cleaning device for the dryer fabric of a paper machine includes a fixedly arranged crossbeam frame. A sliding seat is reciprocally slidably arranged on the side wall of the crossbeam frame facing the guide roll along the axial direction of the guide roll. A cleaning nozzle and a negative pressure suction housing are arranged in parallel from top to bottom on the sliding seat. The negative pressure suction housing is connected with a cyclone separator. The lower end of the cyclone separator is connected with a water seal tank, and the upper end of the cyclone separator is connected with a vacuum fan.

[0011] As an optimized solution, a drag chain is arranged inside the crossbeam frame. The fixed end of the drag chain is fixed on the crossbeam frame, and the movable end of the drag chain is connected to the sliding seat.

[0012] As an optimized solution, a water supply pipe connected to the cleaning nozzle and a suction pipe connected to the negative pressure suction housing are arranged inside the drag chain.

[0013] As an optimized solution, a driving machine is fixedly connected to the lower end of the sliding seat. The output shaft of the driving machine is fixedly connected with a gear, and a rack is horizontally and fixedly connected to the inner wall of the crossbeam frame. The gear meshes with the rack.

[0014] As an optimized solution, a rectangular sliding hole is formed on the side wall of the crossbeam frame. Guide seats are respectively fixedly connected to the upper and lower ends of the sliding seat, and the two guide seats are slidably connected to the upper and lower edges of the rectangular sliding hole correspondingly.

[0015] As an optimized solution, a connecting seat is fixedly connected to the back of the sliding seat, and the movable end of the drag chain is fixedly connected to the connecting seat.

[0016] As an optimized solution, a suction hole is formed at one end of the negative pressure suction housing facing the guide roll.

[0017] As an optimized solution, a brush that is in frictional contact with the surface of the guide roll is fixedly connected to the lower edge of the suction hole.

[0018] As an optimized solution, a rigid suction conduit is fixedly connected to the sliding seat corresponding to the negative pressure suction housing. The inlet end of the rigid suction conduit is fixedly connected to the negative pressure suction housing and communicates with the inner cavity of the negative pressure suction housing.

[0019] As an optimized solution, a rigid liquid supply conduit is fixedly connected to the sliding seat corresponding to the cleaning nozzle. The outlet end of the rigid liquid supply conduit is fixedly connected to the inlet end of the cleaning nozzle.

[0020] As an optimized solution, the outlet end of the water supply pipe is fixedly connected to the inlet end of the rigid liquid supply conduit.

[0021] As an optimized solution, the inlet end of the suction pipe is fixedly connected to the outlet end of the rigid suction catheter.

[0022] As an optimized solution, the inlet end of the water supply pipe is connected to a liquid source.

[0023] As an optimized solution, the outlet end of the suction pipe is connected to the cyclone separator.

[0024] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0025] By fixing the crossbeam frame on the machine frame, the driving machine drives the sliding seat to reciprocate axially along the guide roller. Using the cleaning nozzle connected to the liquid source can provide high-pressure water spraying to blow and clean the attachments adhered to the surface of the guide roller. The cleaning water and attachments will flow downward along the circumferential wall of the guide roller, and then most of the cleaning water and attachments are recovered under negative pressure through the negative pressure suction shell arranged below, improving the cleaning efficiency;

[0026] Online cleaning can be realized at one side position of the guide roller. Since the speed of the cylinder paper machine is slow and the running cycle time of the dryer fabric is longer, using the online cleaning equipment can achieve longer cleaning time for a certain position of the dryer fabric;

[0027] Reduce the labor intensity of workers. Online cleaning can ensure the air permeability of the dryer fabric, reduce the scaling and deformation on the surface of the guide roller, improve the service life of the dryer fabric, and reduce the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally denoted by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to actual scale.

[0029] Figure 1 It is a schematic structural diagram of the present utility model;

[0030] Figure 2 It is a schematic structural diagram of the crossbeam frame of the present utility model.

[0031] In the figure: 1-guide roller, 2-crossbeam frame, 3-cleaning nozzle, 4-negative pressure suction shell, 5-brush; 6-sliding seat; 7-water supply pipe; 8-suction pipe; 9-cyclone separator; 10-vacuum fan; 11-water seal groove; 12-guide seat; 13-drag chain; 14-connecting seat; 15-driving machine; 16-gear; 17-rack; 18-rigid liquid supply catheter; 19-rigid suction catheter. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The embodiments of the technical solutions of the present utility model will be described in detail below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present utility model, and therefore are only examples and cannot be used to limit the protection scope of the present utility model.

[0033] As Figure 1 and Figure 2 shown, the automatic dry fabric cleaning device for the dryer section of a paper machine includes a fixedly arranged crossbeam frame 2. A sliding seat 6 is reciprocally slidable along the axial direction of a guide roll 1 on the side wall of the crossbeam frame 2 facing the guide roll 1. A cleaning spray head 3 and a negative pressure suction housing 4 are arranged in parallel from top to bottom on the sliding seat 6. The negative pressure suction housing 4 is connected to a cyclone separator 9. The lower end of the cyclone separator 9 is connected to a water seal tank 11, and the upper end of the cyclone separator 9 is connected to a vacuum fan 10.

[0034] A drag chain 13 is arranged inside the crossbeam frame 2. The fixed end of the drag chain 13 is fixed to the crossbeam frame 2, and the movable end of the drag chain 13 is connected to the sliding seat 6.

[0035] The cyclone separator 9 can be used to separate liquids.

[0036] A water supply pipe 7 connected to the cleaning spray head 3 and a suction pipe 8 connected to the negative pressure suction housing 4 are arranged inside the drag chain 13.

[0037] A driving machine 15 is fixedly connected to the lower end of the sliding seat 6. The output shaft of the driving machine 15 is fixedly connected to a gear 16. A rack 17 is horizontally and fixedly connected to the inner wall of the crossbeam frame 2. The gear 16 meshes with the rack 17.

[0038] Rectangular sliding holes are formed in the side wall of the crossbeam frame 2. Guide seats 12 are respectively fixedly connected to the upper and lower ends of the sliding seat 6. The two guide seats 12 are slidably connected to the upper and lower edges of the rectangular sliding holes correspondingly.

[0039] A connecting seat 14 is fixedly connected to the back of the sliding seat 6. The movable end of the drag chain 13 is fixedly connected to the connecting seat 14.

[0040] A suction hole is formed at one end of the negative pressure suction housing 4 facing the guide roll 1.

[0041] A brush 5 that is in frictional contact with the surface of the guide roll 1 is fixedly connected to the lower edge of the suction hole.

[0042] A rigid suction conduit 19 is fixedly connected to the sliding seat 6 corresponding to the negative pressure suction housing 4. The inlet end of the rigid suction conduit 19 is fixedly connected to the negative pressure suction housing 4 and communicates with the inner cavity of the negative pressure suction housing 4.

[0043] A rigid liquid supply conduit 18 is fixedly connected to the sliding seat 6 corresponding to the cleaning spray head 3. The outlet end of the rigid liquid supply conduit 18 is fixedly connected to the inlet end of the cleaning spray head 3.

[0044] The outlet end of the water supply pipe 7 is fixedly connected to the inlet end of the rigid liquid supply conduit 18.

[0045] The inlet end of the suction pipe 8 is fixedly connected to the outlet end of the rigid suction conduit 19.

[0046] The inlet end of the water supply pipe 7 is connected to a liquid source.

[0047] The outlet end of the suction pipe 8 is connected to the cyclone separator 9.

[0048] The working principle of this device is as follows:

[0049] By fixing the crossbeam frame 2 on the machine frame, the driving machine 15 drives the sliding seat 6 to reciprocate axially along the guide roller 1. Using the cleaning nozzle 3 connected to the liquid source can provide high-pressure water spraying to blow and clean the attachments adhered to the surface of the guide roller 1. The cleaning water and attachments will flow downward along the circumferential wall of the guide roller 1, and then most of the cleaning water and attachments are recovered by negative pressure through the negative pressure suction housing 4 arranged below, improving the cleaning efficiency;

[0050] Online cleaning at one side position of the guide roller 1 can be realized. Since the speed of the cylinder paper machine is slow and the running cycle time of the dry net is longer, using the online cleaning equipment can achieve longer cleaning time for a certain dry net position;

[0051] Reduce the labor intensity of workers. Online cleaning can ensure the air permeability of the dry net, reduce the scaling and deformation on the surface of the guide roller 1, improve the service life of the dry net, and reduce the production cost.

[0052] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and the description of the present invention.

Claims

1. Automatic cleaning device for dryer fabric in paper machine, characterized in that: It includes a crossbeam frame (2) fixedly arranged, on the side wall of the crossbeam frame (2) facing the guide roller (1), a sliding seat (6) is reciprocally slidable along the axial direction of the guide roller (1), on the sliding seat (6), a cleaning nozzle (3) and a negative pressure suction housing (4) are arranged in parallel from top to bottom, the negative pressure suction housing (4) is connected with a cyclone separator (9), the lower end of the cyclone separator (9) is connected with a water seal tank (11), and the upper end of the cyclone separator (9) is connected with a vacuum fan (10).

2. The automatic dry wire cleaning device for the dryer section of a paper machine according to claim 1, characterized in that: A drag chain (13) is arranged in the crossbeam frame (2), the fixed end of the drag chain (13) is fixed on the crossbeam frame (2), and the movable end of the drag chain (13) is connected to the sliding seat (6); a water supply pipe (7) connected to the cleaning nozzle (3) and a suction pipe (8) connected to the negative pressure suction housing (4) are arranged inside the drag chain (13).

3. The automatic dry fabric cleaning device for the dryer section of a paper machine according to claim 2, characterized in that: A driving machine (15) is fixedly connected to the lower end of the sliding seat (6), an output shaft of the driving machine (15) is fixedly connected with a gear (16), a rack (17) is horizontally and fixedly connected to the inner wall of the crossbeam frame (2), and the gear (16) meshes with the rack (17).

4. The automatic cleaning device for the dryer fabric of a paper machine according to claim 3, characterized in that: Rectangular sliding holes are formed in the side wall of the crossbeam frame (2), guide seats (12) are respectively fixedly connected to the upper and lower ends of the sliding seat (6), and the two guide seats (12) are correspondingly slidably connected to the upper and lower edges of the rectangular sliding holes.

5. The automatic cleaning device for the dryer fabric of a paper machine according to claim 4, wherein: A connecting seat (14) is fixedly connected to the back of the sliding seat (6), and the movable end of the drag chain (13) is fixedly connected to the connecting seat (14).

6. The automatic cleaning device for the dryer fabric of a paper machine according to claim 5, characterized in that: One end of the negative pressure suction housing (4) facing the guide roller (1) is provided with a suction hole, and a brush (5) in frictional contact with the surface of the guide roller (1) is fixedly connected to the lower edge of the suction hole.

7. The automatic dry fabric cleaning device for the dryer section of a paper machine according to claim 6, characterized in that: A rigid suction conduit (19) is fixedly connected to the sliding seat (6) corresponding to the negative pressure suction housing (4), and the inlet end of the rigid suction conduit (19) is fixedly connected to the negative pressure suction housing (4) and communicates with the inner cavity of the negative pressure suction housing (4).

8. The automatic cleaning device for the dryer fabric of a paper machine according to claim 7, characterized in that: A rigid liquid supply conduit (18) is fixedly connected to the sliding seat (6) corresponding to the cleaning nozzle (3), and the outlet end of the rigid liquid supply conduit (18) is fixedly connected to the inlet end of the cleaning nozzle (3).

9. The automatic dry fabric cleaning device for the dryer section of a paper machine according to claim 8, wherein: The outlet end of the water supply pipe (7) is fixedly connected to the inlet end of the rigid liquid supply conduit (18); the inlet end of the water supply pipe (7) is connected to a liquid source.

10. The automatic dry wire cleaning device for the dryer section of a paper machine according to claim 9, characterized in that: The inlet end of the suction pipe (8) is fixedly connected to the outlet end of the rigid suction conduit (19); the outlet end of the suction pipe (8) is connected to the cyclone separator (9).

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