Cleaning device for fan-shaped sieve plate of pulping disc type thickener in papermaking equipment

Abstract

The utility model provides a cleaning device for a fan-shaped sieve plate of a pulping disc thickener in papermaking equipment. Wherein the sieve plate is rotatable, and the cleaning device comprises a first base comprising a first face, and the first base is arranged on one side of the sieve plate; the contact type power supply device comprises a power supply end and a receiving end, and the power supply end is arranged on the first base. The receiving end is at the end of the scraper member close to the first face. The scraper piece comprises a first position, the scraper piece is configured to abut against the surface of the screen plate, the screen plate rotates relative to the scraper piece, the receiving end makes contact with the power supply end, and the circuit is connected. The scraper piece serves as a negative electrode; at the second position, the scraper piece is configured to be separated from the sieve plate, the receiving end is separated from the power supply end, and the circuit is disconnected; the scraper piece is installed on the first face in a sliding mode and slides between a first position and a second position. The positive electrode device is arranged on the side, back to the first base, of the sieve plate, and an electric field is formed between the positive electrode device and the scraper piece. The cleaning device can effectively clean the sieve plate.

Description

A cleaning device for the fan-shaped screen plate of a pulping disc thickener in papermaking equipment. Technical Field

[0001] This application relates to the field of papermaking, and more specifically, to a cleaning device for the fan-shaped screen plate of a pulping disc thickener in papermaking equipment. Background Technology

[0002] In the papermaking process, the disc thickener plays an important role in the pulping process. The rotating fan-shaped screen in the disc thickener drives the pulp, and the filter screen separates the water, thus concentrating the low-concentration pulp to a medium-to-high concentration.

[0003] During operation, the existing disc thickener suffers from the combined effects of high-viscosity slurry adhesion and fibrous impurity retention, leading to physical blockage of the stainless steel filter screen pores in the fan-shaped screen plate. This obstructs the filtrate permeation path, severely limiting the thickening efficiency. Summary of the Invention

[0004] This application provides a cleaning device for the fan-shaped screen plate of a pulping disc thickener in papermaking equipment, which can effectively clean the residue on the screen plate.

[0005] Specifically, this application is implemented through the following technical solution:

[0006] One aspect of this application provides a cleaning device for a fan-shaped screen plate of a pulping disc thickener in papermaking equipment, wherein the screen plate is rotatable, and the cleaning device includes:

[0007] A first base, the first base including a first surface, the first base being disposed on one side of the sieve plate;

[0008] A contact-type power supply device includes a power supply end and a receiving end, wherein the power supply end is disposed on the first base;

[0009] A scraper component has a receiving end disposed at its end near the first surface. The scraper component includes a first position and a second position. In the first position, the scraper component is configured to abut against the surface of the sieve plate, the sieve plate rotates relative to the scraper component, and the receiving end contacts the power supply terminal, establishing a circuit connection. The contact-type power supply device supplies power to the scraper component, making the scraper component the negative electrode. In the second position, the scraper component is configured to be separated from the sieve plate, and the receiving end is separated from the power supply terminal, establishing a circuit disconnection. The scraper component is slidably mounted on the first surface and slides between the first position and the second position.

[0010] A positive electrode device is disposed on the side of the sieve plate facing away from the first base, and an electric field is formed between the positive electrode device and the scraper.

[0011] Optionally, multiple sieve plates are arranged parallel to each other along a straight line and spaced apart, and multiple cleaning devices are also included, and are arranged one-to-one on the rear side of multiple sieve plates.

[0012] Each of the cleaning devices is equipped with a detection device, which includes a light emitting end near the scraper and a light collecting end away from the scraper. The light collecting end is used to receive light emitted by a light emitting device on another cleaning device behind it, which passes through the sieve plate corresponding to the other cleaning device.

[0013] Optionally, the scraper extends along a first direction, and multiple detection devices are provided and distributed along the first direction, which is configured to be radially parallel to the rotation of the sieve plate.

[0014] Optionally, the cleaning device further includes a driving device mounted on the first surface of the first base. The driving end of the driving device is fixedly connected to the first end of the scraper and is used to push the scraper to slide between a first position and a second position, wherein the first end is configured as the end of the scraper facing away from the sieve plate.

[0015] Optionally, the cleaning device further includes a washing device, which includes a nozzle configured to face the scraper member on the side near the screen plate.

[0016] Optionally, the cleaning device further includes a first support rod, a guide groove is provided on the first surface of the first base, one end of the first support rod is engaged in the guide groove, the other end is fixedly connected to the scraper, the receiving end is provided at the bottom of the first support rod, and the power supply end is provided inside the guide groove.

[0017] The cleaning device further includes a second support rod and a third support rod. The driving device is fixedly installed on the first surface via the second support rod, and the cleaning device is fixedly installed on the first surface via the third support rod.

[0018] The height of the third support rod relative to the first surface is greater than the height of the second support rod relative to the first surface, and also greater than the height of the first support rod relative to the first surface; and the height of the second support rod relative to the first surface is less than or equal to the height of the first support rod relative to the first surface.

[0019] Optionally, the cleaning device further includes a fixing frame, which surrounds the first end of the scraper and is fixed to the scraper. The first support rod is fixed to the fixing frame, and the drive end of the drive device is also fixed to the fixing frame.

[0020] Optionally, the cleaning device further includes a clamping part disposed on a second side of the first base, the second side being opposite to the first side; the clamping part includes a second base, a lead screw, and two clamps, the second base being fixedly installed with the first base;

[0021] On the side of the second base facing away from the scraper, two clamps are slidably engaged with the second base along the straight line of the lead screw, and the two clamps are connected to the lead screw by threads.

[0022] Optionally, the cleaning device further includes a brush portion configured to be fixedly mounted on the end of the scraper near the sieve plate.

[0023] This application provides a cleaning device for a fan-shaped screen plate of a pulping disc thickener in papermaking equipment. The scraper includes a first position and a second position. In the first position, the scraper is configured to abut against the surface of the screen plate, the screen plate rotates relative to the scraper, and the receiving end is in contact with the power supply end, connecting the circuit. A contact-type power supply device supplies power to the scraper, making the scraper the negative electrode. In the second position, the scraper is configured to be separated from the screen plate, and the receiving end is separated from the power supply end, disconnecting the circuit. A positive electrode device is configured on the side of the screen plate facing away from the first base, forming an electric field between the positive electrode device and the scraper. In the first position, because the screen plate rotates relative to the scraper, the scraper can effectively clean the screen plate, reducing manual labor. Furthermore, this application utilizes the electric field to make the cleaning of the screen plate more thorough, and the residue is more easily peeled off from the scraper. Attached Figure Description

[0024] Figure 1 is a front view of a cleaning device shown in an exemplary embodiment of this application;

[0025] Figure 2 is a side view of a cleaning device illustrated in an exemplary embodiment of this application;

[0026] Figure 3 is a side top view illustrating an exemplary embodiment of this application;

[0027] Figure 4 is a partial view of a cleaning device illustrated in an exemplary embodiment of this application;

[0028] Figure 5 is a partial view of a papermaking apparatus illustrated in an exemplary embodiment of this application;

[0029] Figure 6 is a structural diagram of a papermaking apparatus shown in an exemplary embodiment of this application.

[0030] in,

[0031] A. Sieve plate; B. Main shaft; C. Gear motor; 100. First base; 101. First surface; 102. Second surface; 110. Power supply end; 120. Receiver end; 130. Positive electrode device; 200. Scraper; 201. First end; 300. Drive device; 301. Drive end; 400. Cleaning device; 401. Nozzle; 510. First support rod; 520. Second support rod; 530. Third support rod; 600. Fixing frame; 700. Clamping part; 710. Second base; 720. Lead screw; 730. Fixture; 800. Detection device; 801. Light emitting end; 802. Light collecting end; 900. End brush part. Detailed Implementation

[0032] The technical solutions in the embodiments (or "implementations") of this application will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0033] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movement of the components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.

[0034] Please refer to Figures 1 to 6. This application provides a cleaning device for the fan-shaped screen plate of a disc thickener in a papermaking machine. As shown in Figure 6, the papermaking machine includes at least a screen plate A, which is rotatable. For example, it can be the screen plate in a disc thickener in the pulping process. It can rotate to drive the pulp, and then filter the pulp using the filter screen on the screen plate. Referring to Figures 4 and 5, the cleaning device includes a first base 100, a doctor blade 200, a contact power supply device, and a positive electrode device 130. Referring to Figure 2, the first base 100 includes a first surface 101, and the first base 100 is disposed on one side of the screen plate A. The contact power supply device includes a power supply end 110 and a receiving end 120, with the power supply end 110 disposed on the first base 100. The receiving end 120 is disposed at the end of the scraper member near the first surface. The scraper member 200 includes a first position and a second position. In the first position, the scraper member 200 is configured to abut against the surface of the screen plate A, the screen plate A rotates relative to the scraper member 200, and the receiving end 120 is in contact with the power supply end 110, the circuit is connected, and the contact power supply device supplies power to the scraper member 200, making the scraper member 200 the negative electrode. In the second position, the scraper member 200 is configured to be separated from the screen plate A, and the receiving end 120 is separated from the power supply end 110, the circuit is disconnected. The positive electrode device 130 is disposed on the side of the screen plate A facing away from the first base 100, and an electric field is formed between the positive electrode device 130 and the scraper member 200.

[0035] First, in the first position, the scraper 200 abuts against the screen plate A, and the screen plate A rotates, driving the slurry filtration. That is, the screen plate A rotates relative to the scraper 200. During the rotation of the screen plate A, the scraper 200 can scrape off any remaining high-viscosity slurry and fibrous impurities on the screen plate A. Here, the first position can be understood as the infeed position of the scraper 200. In the second position, the scraper 200 is separated from the screen plate A, meaning that scraping off impurities is not required at this time. Relative to the infeed position in the first position, the second position can be understood as the retraction position of the scraper 200. The scraper 200 is slidably mounted on the first surface 101 and slides between the first and second positions, thus achieving both infeed and retraction through sliding. This application, through the infeed and retraction of the scraper 200, can effectively clean the screen plate, reduce manpower input, reduce physical clogging of the screen plate, significantly improve production efficiency, and simultaneously reduce energy consumption and maintenance costs.

[0036] Furthermore, the residual pulp mainly consists of cellulose fibers, water, and possible additives (such as fillers and sizing agents). The cellulose fibers carry a slight negative charge, meaning the residue remaining on screen plate A also carries a slight negative charge. This application constructs an electric field consisting of a positive electrode device 130 and a doctor blade 200 as the negative electrode. Under the influence of this electric field, the negatively charged residue on screen plate A will detach towards the doctor blade 200, making it easier to remove stubborn residue and resulting in more thorough cleaning of screen plate A. Moreover, since the doctor blade 200, as the negative electrode, also carries a negative charge, the negatively charged residue adhering to it is more easily peeled off due to the repulsion of like charges, thus facilitating the cleaning of the doctor blade 200. The positive electrode device 130 can be a metal electrode plate connected to a power source, a carbon electrode sheet, or the positive electrode material of a battery.

[0037] In one embodiment, referring to Figures 4, 5, and 6, multiple sieve plates A are arranged parallel to each other along a straight line and spaced apart. Multiple cleaning devices are also included, each corresponding to one of the sieve plates A on its rear side. Here, "front and back" refers only to their relative positions. Each cleaning device is equipped with a detection device 800, which includes a light emitting end 801 near the scraper and a light collecting end 802 away from the scraper. Referring to Figure 6, the light collecting end 802 receives light emitted by the light emitting end 801 of another cleaning device behind it, passing through the sieve plate A corresponding to that other cleaning device. Therefore, in this embodiment, the transmittance of the sieve plate A can be analyzed based on the intensity of the light received by the light collecting end 802, and the cleaning status of the sieve plate A can be determined based on the transmittance. The light emitting end 801 can be a light-emitting diode, a laser diode, or other similar device, and the light collecting end 802 can be composed of a photodiode, a photoresistor, or other similar device.

[0038] In one embodiment, referring to Figures 1, 3, and 6, a scraper 200 extends along a first direction, and multiple detection devices 800 are provided and distributed along the first direction x, which is configured to be parallel to the radial direction of rotation of the sieve plate A. This radial direction can be understood as the direction from the center of rotation to the edge of the sieve plate A. Taking a fan-shaped or circular sieve plate A as an example, the scraper 200 can be parallel to the radial direction of the sieve plate A, so that after one revolution of the sieve plate A, the scraper 200 can scrape and clean the entire surface of the sieve plate A. Furthermore, the multiple detection devices 800 are also distributed along the first direction x, allowing the emitted light to more comprehensively cover the sieve plate A, resulting in more accurate detection results. The movable distance between the first position and the second position of the scraper 200 can be 5-6 mm. The end of the scraper 200 near the sieve plate A can be a blunt blade to prevent the sharp blade from damaging the filter screen of the sieve plate A.

[0039] In one embodiment, please refer to Figures 2 and 5. The cleaning device further includes a drive device 300, which is mounted on the first surface 101 of the first base 100. The drive end 301 of the drive device 300 is fixedly connected to the first end 201 of the scraper 200, and is used to push the scraper 200 to slide between a first position and a second position. The first end 201 is configured as the end of the scraper 200 facing away from the screen plate A. The drive device 300 can intelligently control the movement of the drive end 301 through electronic control or other means, thereby pushing the first end 201 of the scraper 200 to advance and retract the scraper 200. The drive device 300 can be a telescopic cylinder driven pneumatically, or a hydraulic cylinder, electric push rod, etc., to drive the scraper 200 to slide between the first position and the second position.

[0040] In one embodiment, referring to Figures 2 and 3, the cleaning device further includes a washing device 400, which includes a nozzle 401 configured to face the side of the scraper 200 near the sieve plate A. "Face" means that the cleaning material sprayed from the nozzle 401 can reach the contact point between the scraper 200 and the sieve plate A, cleaning away the residue scraped off the sieve plate A by the scraper 200, as well as any remaining residue on the sieve plate A. This facilitates further scraping of residue by the scraper 200 and further cleaning of the sieve plate A, resulting in a more thorough cleaning of the sieve plate A. The pressure of the spray from the nozzle can be 0.3-0.4 MPa, for example, 0.3 MPa, 0.35 MPa, or 0.4 MPa. In addition, the cleaning fluid sprayed from the nozzle 401 can be controlled to spray out in a fan shape, so that the cleaning fluid is sprayed onto the scraper 200, covering the entire length of the scraper 200, and cleaning the entire scraper 200. The cleaning device can be a water flusher, spraying water as the cleaning fluid.

[0041] In one embodiment, referring to Figure 2, the cleaning device further includes a first support rod 510. A guide groove (not shown) is formed on the first surface 101 of the first base 100. One end of the first support rod 510 is engaged in the guide groove, and the other end is fixedly connected to the scraper 200. A receiving end 120 is disposed at the bottom of the first support rod 510. As the first support rod 510 slides, a power supply end 110 is disposed inside the guide groove. When the scraper 200 slides from the second position to the first position, the receiving end 120 slides into contact with the power supply end 110. The first support rod 510 connects the scraper 200 and the first base 100, providing stable support for the scraper 200. The guide groove guides the movement of the first support rod 510 and limits its sliding range. Specifically, the contour of the guide groove can match the end shape of the first support rod 510 to ensure that it maintains stable linear motion during sliding and avoids deviation or shaking. The two ends of the guide groove can be provided with mechanical limiting structures (such as blocks or flanges) to limit the sliding distance of the first support rod 510. The guide groove can adopt a T-shaped groove or U-shaped groove structure so that one end of the first support rod 510 can be stably locked onto the first base 100.

[0042] In another embodiment, referring to FIG2, the cleaning device further includes a second support rod 520 and a third support rod 530. The driving device 300 is fixedly mounted on the first surface 101 via the second support rod 520, and the cleaning device 400 is fixedly mounted on the first surface 101 via the third support rod 530. Both the driving device 300 and the cleaning device 400 are fixed to the first base 100 via the support rods. As rigid connecting members, the support rods can effectively transmit loads, so that the force on the driving device 300 and the cleaning device 400 is evenly distributed on the first base 100, avoiding local stress concentration.

[0043] The height of the third support rod 530 relative to the first surface 101 is greater than the height of the second support rod 520 relative to the first surface 101, and also greater than the height of the first support rod 510 relative to the first surface 101. Furthermore, the height of the second support rod 520 relative to the first surface 501 is less than or equal to the height of the first support rod 510 relative to the first surface 501. This ensures that the cleaning device 400 is positioned higher than the drive device 300 and the scraper 200, and that the drive device 300 is not in the spray path of the cleaning fluid. This reduces the risk of cleaning fluid being sprayed into the drive device 300, potentially causing short circuits or other damage. The internal structure of the multiple support rods can be designed as hollow to conceal wiring (such as air pipes, electrical wires, or cleaning fluid pipes), improving aesthetics and safety.

[0044] In one embodiment, referring to Figures 2, 3, and 5, the cleaning device further includes a fixing frame 600, which surrounds the first end 201 of the scraper 200, specifically surrounding the upper and lower surfaces of the scraper 200. It is fixed to the scraper 200, for example, by screw connection, snap-fit, or adhesive bonding. The first support rod 510 is fixed to the fixing frame 600, thereby fixing the first support rod 510 to the scraper 200. The driving end 301 of the driving device 300 is also fixed to the fixing frame 600. It can be understood that both the first support rod 510 and the driving end 301 are fixedly connected to the scraper 200 through the fixing frame 600.

[0045] In one embodiment, referring to Figures 1 and 2, the cleaning device further includes a clamping part 700, which is disposed on a second surface 102 of the first base 100, opposite to the first surface 101. The clamping part 700 can serve as a connection hub between the cleaning device and external equipment (such as a frame or mobile platform), ensuring that the scraper 200 can be accurately positioned and locked onto the target workstation.

[0046] In another embodiment, referring to Figures 1 and 2, the clamping part 700 includes a second base 710, a lead screw 720, and two clamps 730. The second base 710 is fixedly installed with the first base 100. Specifically, an internal hexagon screw can be used to pass through the first base 100 and the second base 710 to fix them in a preset position. The internal hexagon screw can be M24×60.

[0047] On the side of the second base 710 facing away from the scraper 200, two clamps 730 are slidably engaged with the second base 710 along the line of the lead screw 720. The two clamps 730 are threadedly connected to the lead screw 720. Specifically, the inner wall of the hole through which the lead screw 720 passes in the clamps 730 can be provided with threads adapted to the lead screw 720. Rotating the lead screw 720 causes the two clamps 730 to move closer together for clamping and fixing, or to move away from each other for loosening. Alternatively, two nuts can be provided on both sides of each clamp 730, also with threads adapted to the lead screw 720, so that the two nuts push the clamps to move left or right, thereby controlling the two clamps 730 to move closer or further apart. Furthermore, the inner sides of the two clamps can be provided with irregular surfaces to increase the coefficient of friction during clamping and provide stability for the cleaning device clamped on the tooling.

[0048] In one embodiment, referring to FIG4, the cleaning device further includes a brush portion 900, configured to be fixedly mounted on the end of the scraper member 200 near the sieve plate A. The brush portion 900 can extend into the holes inside the filter screen of the sieve plate A to clean the residue in the holes, making the cleaning more thorough.

[0049] Referring to Figures 5 and 6, this application also provides a papermaking apparatus, including the cleaning device described in any of the above, a plurality of screen plates A, a main shaft B, and a geared motor C;

[0050] Multiple screen plates A are fixedly installed axially spaced and parallel to the main shaft B. Multiple cleaning devices are correspondingly installed on the feed side of the multiple screen plates A. A geared motor C is connected to the main shaft B, driving the main shaft B to rotate, causing the screen plates A to rotate relative to the cleaning devices. The main shaft B of the papermaking equipment drives the screen plates A to rotate, achieving pulp concentration. The cleaning devices, located on the feed side, can scrape off the residue clogging the screen plates A. The geared motor C drives the main shaft B to rotate, which in turn drives the screen plates A to rotate. The geared motor can include a motor and a reducer. After the motor is turned on, the speed is changed by the reducer, and then the power is transmitted to the main shaft B.

Claims

1. A cleaning device for the fan-shaped screen plate of a pulping disc thickener in papermaking equipment, characterized in that, The sieve plate (A) is rotatable, and the cleaning device includes: a first base (100), the first base (100) including a first surface (101), the first base (100) being disposed on one side of the sieve plate (A); a contact power supply device including a power supply end (110) and a receiving end (120), the power supply end (110) being disposed on the first base (100); a scraper (200), the receiving end (120) being disposed at the end of the scraper (200) near the first surface (101), the scraper (200) including a first position and a second position, in the first position, the scraper (200) being configured to abut against the surface of the sieve plate (A), the sieve plate (A) being relatively to the scraper (200). 0) Rotate, and the receiving end (120) contacts the power supply end (110), the circuit is connected, the contact power supply device supplies power to the scraper (200), so that the scraper (200) is the negative electrode; in the second position, the scraper (200) is configured to be separated from the sieve plate (A), and the receiving end (120) is separated from the power supply end (110), the circuit is disconnected; the scraper (200) is slidably mounted on the first surface (101) and slides between the first position and the second position; the positive electrode device (130) is configured on the side of the sieve plate (A) facing away from the first base (100), and an electric field is formed between the positive electrode device (130) and the scraper (200).

2. The cleaning device for the fan-shaped screen plate of the pulping disc thickener in papermaking equipment as described in claim 1, characterized in that, Multiple sieve plates (A) are arranged parallel to each other along a straight line and spaced apart. Multiple cleaning devices are also included and are arranged one-to-one on the rear side of multiple sieve plates (A). Each cleaning device is provided with a detection device (800). The detection device (800) includes a light emitting end (801) close to the scraper (200) and a light collecting end (802) away from the scraper (200). The light collecting end (802) is used to receive the light emitted by the light emitting device on another cleaning device behind it, which passes through the sieve plate (A) corresponding to the other cleaning device.

3. The cleaning device for the fan-shaped screen plate of the pulping disc thickener in papermaking equipment as described in claim 2, characterized in that, The scraper (200) extends along a first direction, and multiple detection devices (800) are provided and distributed along the first direction, which is configured to be radially parallel to the rotation of the sieve plate (A).

4. The cleaning device for the fan-shaped screen plate of the pulping disc thickener in papermaking equipment as described in claim 1, characterized in that, The cleaning device further includes a drive device (300) mounted on the first surface (101) of the first base (100). The drive end (301) of the drive device (300) is fixedly connected to the first end (201) of the scraper (200) for pushing the scraper (200) to slide between a first position and a second position, wherein the first end (201) is configured as the end of the scraper (200) facing away from the sieve plate (A).

5. The cleaning device for the fan-shaped screen plate of the pulping disc thickener in papermaking equipment as described in claim 4, characterized in that, The cleaning device also includes a washing device (400) which includes a nozzle (401) configured to face the scraper (200) on the side near the sieve plate (A).

6. The cleaning device for the fan-shaped screen plate of the pulping disc thickener in papermaking equipment as described in claim 5, characterized in that, The cleaning device further includes a first support rod (510), and a guide groove is formed on the first surface (101) of the first base (100). One end of the first support rod (510) is engaged in the guide groove, and the other end is fixedly connected to the scraper (200). The receiving end (120) is disposed at the bottom of the first support rod (510), and the power supply end (110) is disposed inside the guide groove. The cleaning device further includes a second support rod (520) and a third support rod (530). The driving device (300) is fixedly mounted on the first base (100) via the second support rod (520). On the first surface (101), the cleaning device (400) is fixedly installed on the first surface (101) by the third support rod (530); the height of the third support rod (530) relative to the first surface (101) is greater than the height of the second support rod (520) relative to the first surface (101), and is also greater than the height of the first support rod (510) relative to the first surface (101), and the height of the second support rod (520) relative to the first surface (101) is less than or equal to the height of the first support rod (510) relative to the first surface (101).

7. The cleaning device for the fan-shaped screen plate of the pulping disc thickener in papermaking equipment as described in claim 6, characterized in that, The cleaning device also includes a fixing frame (600), which surrounds the first end (201) of the scraper (200) and is fixed to the scraper (200). The first support rod (510) is fixed to the fixing frame (600), and the driving end (301) of the driving device (300) is also fixed to the fixing frame (600).

8. The cleaning device for the fan-shaped screen plate of the pulping disc thickener in papermaking equipment as described in any one of claims 1 to 7, characterized in that, The cleaning device further includes a clamping part (700), which is disposed on the second side (102) of the first base (100), the second side (102) being opposite to the first side (101); the clamping part (700) includes a second base (710), a lead screw (720) and two clamps (730), the second base (710) being fixedly installed on the first base (100); on the side of the second base (710) facing away from the scraper (200), the two clamps (730) are slidably engaged with the second base (710) along the straight line of the lead screw (720), and the two clamps (730) are threadedly connected to the lead screw (720).

9. The cleaning device for the fan-shaped screen plate of the pulping disc thickener in papermaking equipment as described in any one of claims 1 to 7, characterized in that, The cleaning device also includes a brush portion configured to be fixedly mounted on the end of the scraper (200) near the sieve plate (A).

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