Cleaning rotating device capable of preventing brush from blocking spray nozzle

Abstract

The utility model discloses a cleaning rotating device capable of preventing a brush from blocking a spray nozzle, which relates to the technical field of papermaking equipment and comprises a spray pipe, the brush and a rotating shaft are arranged in the spray pipe, one end of the rotating shaft extends out of the spray pipe and is connected with a motor, one end of the rotating shaft extending out of the spray pipe is matched with a bearing, and the bearing is fixed relative to a machine body of a pulp machine. A proximity switch is installed outside the bearing, and correspondingly, a groove capable of being matched with the proximity switch is formed in the rotating shaft. At least one row of brushes are arranged and extend in the axial direction of the rotating shaft, and when the grooves in the rotating shaft are sensed by the proximity switch, the brushes are away from the nozzles of the spraying pipe. The spray pipe cleaning device solves the problem that in the prior art, after a spray pipe is cleaned, a brush can block a nozzle.

Description

Technical Field

[0001] The utility model relates to the technical field of papermaking equipment, in particular to a cleaning rotating device for preventing a spray nozzle from being blocked by a brush. Background Art

[0002] Pulp is a fibrous material made from plant fibers through different processing methods. During the pulp production process, the pulp suspension is screened and separated to improve the quality of the pulp.

[0003] The press roll of a pulp machine is one of the key components in a papermaking production line. It is mainly used to further squeeze out the water in the pulp after it has been screened and bleached, in preparation for the subsequent paper forming and drying process. Through the pressure of the press roll, the excess water in the pulp is squeezed out, making the pulp more concentrated, thereby improving the quality and production efficiency of the paper. During the pulp production process, the viscosity of the pulp is relatively high, and it is easy to adhere to the press roll and form a layered structure, causing the press roll to be blocked. In addition, if the pressure of the press roll is insufficient or the roller surface is worn or damaged, the blockage phenomenon will also be aggravated. Therefore, regular cleaning and maintenance of the press roll to ensure appropriate pressure and smooth roller surface are important measures to prevent blockage.

[0004] At present, the press rollers of pulp machines usually need to be cleaned with the help of spray pipes. The spray pipes are provided with nozzles. During the cleaning process, the water flow sprayed through the nozzles can effectively remove the residual pulp, dirt and bacteria on the surface of the rollers. However, the nozzles of the spray pipes are prone to clogging. In the prior art, a brush is usually installed in the spray pipe, and the brush is driven to rotate by a motor to clean the brush. However, when the motor stops rotating, the brush often clogs the nozzle inside the spray pipe, thereby affecting the spraying of water flow. Utility Model Content

[0005] The embodiment of the present application provides a cleaning rotating device that prevents the brush from clogging the spray nozzle, so as to solve the problem in the prior art that the brush may clog the nozzle after the spray pipe is cleaned.

[0006] In order to solve the above technical problems, the utility model adopts the following technical scheme: a cleaning rotating device for preventing a brush from clogging a spray nozzle, comprising a spray pipe, a brush and a rotating shaft arranged in the spray pipe, one end of the rotating shaft extending out of the spray pipe and connected to a motor, and the end of the rotating shaft extending out of the spray pipe is matched with a bearing, the outer ring of the bearing is relatively fixed to the body of the pulp machine, a proximity switch is installed on the outside of the bearing, and correspondingly, a groove that can cooperate with the proximity switch is provided on the rotating shaft; at least one row of brushes is arranged and extends along the axial direction of the rotating shaft, and when the groove on the rotating shaft is sensed by the proximity switch, the brush is away from the nozzle of the spray pipe.

[0007] The utility model uses a brush and a rotating shaft arranged in the spray pipe, and the rotating shaft is driven by a motor to rotate, so that the brush scrapes off the blockage at the nozzle. At the same time, because the brushes are arranged in a row and extend along the axial direction of the rotating shaft, the brushes can be controlled to stop rotating at the side away from the nozzle through the proximity switch and the groove on the rotating shaft, thereby preventing the brushes from clogging the nozzle.

[0008] Furthermore, the nozzles are arranged in a row along the axial direction of the spray pipe, thereby enabling the spray pipe to form a wide and uniform water flow.

[0009] Furthermore, a water inlet is installed at one end of the spray pipe; water can flow into the spray pipe by connecting the water inlet to the water inlet.

[0010] Furthermore, a flange is provided on one side of the water inlet, and a flange gasket is provided on one side of the flange; the flange and the flange gasket can ensure the sealing of the connection between the water inlet and the water inlet pipe.

[0011] Furthermore, the brushes are arranged in more than two rows; thereby, the brushes can have a larger coverage area on the inner wall of the spray pipe, thereby more effectively scraping off blockages at the nozzle and improving the cleaning effect.

[0012] Furthermore, the output end of the motor is connected to one end of the rotating shaft through a coupling; the coupling can improve the stability of the rotating shaft's rotation.

[0013] It can be seen from the above technical solutions that the utility model has at least the following technical effects or advantages:

[0014] The utility model uses a brush and a rotating shaft arranged in the spray pipe, and the rotating shaft is driven by a motor to rotate, so that the brush scrapes off the blockage at the nozzle. At the same time, because the brushes are arranged in a row and extend along the axial direction of the rotating shaft, the brushes can be controlled to stop rotating at the side away from the nozzle through the proximity switch and the groove on the rotating shaft, thereby preventing the brushes from clogging the nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the utility model, the following is a brief introduction to the drawings required for the description. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work:

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model.

[0018] Explanation of the accompanying reference numerals: 1. spray pipe, 2. nozzle, 3. brush, 4. rotating shaft, 5. water inlet, 6. coupling, 7. motor, 8. proximity switch, 9. groove, 10. bearing. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0020] The utility model discloses a cleaning rotating device for preventing a spray nozzle from being blocked by a brush, comprising a spray pipe 1, a nozzle 2 being arranged on the pipe wall of the spray pipe 1, a brush 3 for cleaning the nozzle 2 and a rotating shaft 4 for driving the brush 3 to rotate being arranged inside the spray pipe 1, when the rotating shaft 4 rotates, the front end of the brush 3 contacts the inner wall of the spray pipe 1, thereby being able to scrape off the blockage at the nozzle 2.

[0021] like Figure 1 As shown, a plurality of nozzles 2 are arranged on the spray pipe 1 and arranged in a row along the axial direction of the spray pipe 1. The water of the spray pipe 1 can be sprayed out in the form of a water column through the nozzles 2. A water inlet 5 is installed at one end of the spray pipe 1. A flange and a flange gasket are arranged on one side of the water inlet 5. The flange can be connected to the water inlet pipe so that the water source enters the spray pipe 1. The flange gasket is located between the connector of the water inlet pipe and the flange of the water inlet 5, thereby improving the airtightness of the connection between the water inlet 5 and the water inlet pipe.

[0022] The water inlet 5 is a three-way joint, one of which can be connected to the water inlet pipe, and the other two joints of the water inlet 5 are respectively connected to the spray pipe 1 and the bearing 10. The bearing 10 is used to install the rotating shaft 4, and the rotating shaft 4 is connected to the output shaft of the motor 7 through the coupling 6. The outer ring of the bearing 10 and the motor 7 can be relatively fixed to the body of the pulp machine, so that the rotating shaft 4 can rotate more smoothly through the bearing 10, and the rotation stability of the rotating shaft 4 can be improved through the coupling 6.

[0023] like Figure 1As shown, a proximity switch 8 is also installed on the outside of the bearing 10, and correspondingly, a groove 9 is provided on the rotating shaft 4. When the rotating shaft 4 rotates to the position where the groove 9 corresponds to the proximity switch 8, the proximity switch 8 can send a signal to stop the motor 7 from rotating. Thus, the motor 7 can be stopped by the cooperation between the proximity switch 8 and the groove 9 on the rotating shaft 4. It should be understood that the proximity switch 8 and the motor 7 can be connected to the control system, so that the motor 7 can be rotated regularly according to the DCS setting program, and the number of revolutions of the rotating shaft 4 can also be controlled, so as to achieve the effect of cleaning the nozzle 2 with the brush 3. Among them, the DCS setting program is a prior art, and those skilled in the art are familiar with it, so it will not be repeated.

[0024] On the other hand, at least one row of brushes 3 is arranged in the spray pipe 1, and the arrangement direction of each row of brushes 3 extends along the axial direction of the rotating shaft 4. When the groove 9 on the rotating shaft 4 is sensed by the proximity switch 8, the brush 3 is away from the spray nozzle or located on one side of the spray nozzle in the spray pipe 1, so that when the motor 7 stops rotating, the nozzle 2 can be prevented from being blocked by the brush 3. In this way, the water in the spray pipe 1 can be sprayed out from the spray nozzle. Specifically in this embodiment, Figure 2 As shown, the brushes 3 in the spray pipe 1 are arranged in three rows, and the angle between two adjacent rows of brushes 3 is 120 degrees. When the position of the groove 9 corresponds to the position of the proximity switch 8, two rows of brushes 3 are respectively located on both sides of the nozzle 2. In other embodiments, the brushes 3 can also be arranged in four rows or more.

[0025] In the description of the present invention, the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the purpose of describing the present invention rather than requiring the present invention to be constructed or operated in a specific position, and therefore cannot be understood as a limitation on the present invention. The terms "connected" and "connected" in the present invention should be understood in a broad sense, for example, it can be a connection or a detachable connection; it can be a direct connection or an indirect connection through an intermediate component. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0026] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in their embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novelties disclosed herein.

Claims

1. A cleaning rotating device for preventing a spray nozzle from being blocked by a brush, comprising a spray pipe (1), a brush (3) and a rotating shaft (4) being arranged in the spray pipe (1), one end of the rotating shaft (4) extending out of the spray pipe (1) and connected to a motor (7), It is characterized in that One end of the rotating shaft (4) extending out of the spray pipe (1) is matched with a bearing (10); the outer ring of the bearing (10) is fixed relatively to the body of the pulp machine; a proximity switch (8) is installed outside the bearing (10); correspondingly, a groove (9) capable of matching with the proximity switch (8) is provided on the rotating shaft (4); at least one row of brushes (3) is provided and extends along the axial direction of the rotating shaft (4); when the groove (9) on the rotating shaft (4) is sensed by the proximity switch (8), the brush (3) is away from the nozzle (2) of the spray pipe (1).

2. A cleaning rotating device for preventing brush clogging of a spray nozzle according to claim 1, characterized in that: The nozzles (2) are arranged in a row along the axial direction of the spray pipe (1).

3. A cleaning rotating device for preventing brush clogging of a spray nozzle according to claim 1, characterized in that: A water inlet (5) is installed at one end of the spray pipe (1).

4. A cleaning rotating device for preventing brush clogging of a spray nozzle according to claim 3, characterized in that: A flange is provided on one side of the water inlet (5), and a flange gasket is provided on one side of the flange.

5. A cleaning rotating device for preventing brush clogging of a spray nozzle according to any one of claims 1 to 4, characterized in that: The brushes (3) are arranged in more than two rows.

6. A cleaning rotating device for preventing brush clogging of a spray nozzle according to claim 5, characterized in that: The output end of the motor (7) is connected to one end of the rotating shaft (4) via a coupling (6).

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