An intelligent inspection and control system for online detection of pulp brightness

Abstract

The invention relates to the technical field of pulp whiteness detection, and specifically discloses an intelligent inspection and control system for online detection of pulp whiteness, comprising: an operating table and a rotating plate, wherein the rotating plate is rotatably connected to the upper end of the operating table through a rotating shaft, and supporting legs are fixedly installed on the four sides of the lower end of the operating table. A fixed amount of pulp is input into a cylinder each time through an external pulp conveying pipe, and electric push rod 2 is started to drive push block 2 to squeeze the pulp, and then electric push rod 3 is started to pull force plate 1, allowing a paper sheet to fall into circular hole 2 and be located at the upper end of a screen plate, and then the electric drive rotating plate is started again to rotate and rotate the paper sheet to the bottom of push block 3, and electric push rod 4 drives push block 3 to press the paper sheet, and again presses the paper sheet and squeezes out moisture, and then rotates the paper sheet to the lower end of a whiteness sensor for whiteness detection, and so on and so forth. The detection is repeated four times, and the detection results are compared to obtain data for accurate measurement of pulp whiteness.

Description

Technical Field

[0001] The present invention relates to the technical field of pulp whiteness detection, and in particular to an intelligent inspection and control system for online detection of pulp whiteness. Background Art

[0002] With the development of automation and information technology, online brightness detectors have emerged. Using online brightness sensors, we can obtain continuous signals of changes in pulp brightness during the bleaching process. This allows for continuous control of the addition of bleaching chemicals, reducing chemical consumption while ensuring quality. This can reduce bleaching costs and pollutant emissions during the bleaching process.

[0003] The online whiteness sensor studied by Zhang Zhanbo and others from the State Key Laboratory of Papermaking Engineering at South China University of Technology is based on fiber optic sensing technology and uses light-emitting diodes as light sources. 475nm blue light is irradiated into the pulp flow through the irradiation fiber, and the measuring fiber will receive part of the reflected light. In addition, a beam of light needs to be drawn out from the irradiation fiber for comparison. The light in the measuring fiber and the reference fiber undergoes photoelectric conversion and amplification, and then is converted into a digital quantity through a knife conversion. The measurement divided by the reference is used as the sensor parameter, and a mathematical regression is performed on the standard whiteness value measured in the laboratory. The pulp whiteness is calculated based on the obtained mathematical model and the light intensity measured by the sensor. This method improves the speed of pulp whiteness detection and can realize online whiteness detection.

[0004] However, its disadvantage is that it directly detects the whiteness of the slurry flow, while the conditions of the slurry itself in the pipeline are diverse. First, the measured slurry sample is not a flat surface. Therefore, the amount of 457nm blue light reflected by the slurry will be different at different measurement points. After diffuse reflection, there will be great differences in the collection of the reflected blue light. In addition, according to experimental research, the reflectivity of 457nm blue light is different when the slurry concentration is different. When the sensor is directly used to measure the whiteness of the slurry in the pipeline, if the concentration changes, the measured whiteness value will change significantly. From the above analysis, it is known that in order to accurately measure the whiteness of the slurry, the slurry must be pre-processed, that is, to ensure that the measured slurry sample has a certain smoothness that is conducive to light reflection. Summary of the Invention

[0005] The object of the present invention is to provide an intelligent inspection and control system for online detection of pulp brightness, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: an intelligent inspection and control system for online detection of pulp brightness, comprising: an operating table and a rotating plate, the rotating plate being rotatably connected to the upper end of the operating table via a rotating shaft, support legs being fixedly mounted on four sides of the lower end of the operating table, a plurality of first and second circular holes being cross-circularly formed on the outer side wall of the rotating plate, each second circular hole being convex, a first force-bearing plate being mounted in each second circular hole, and a mesh plate being fixedly mounted on the upper end of the first force-bearing plate;

[0007] An electric push rod 1, a cylinder, a mounting cylinder and an electric push rod 4 are respectively installed on the upper end of the operating table. A push block 1 is fixedly installed on the upper end of the electric push rod 1. A pulp forming component is arranged in the cylinder. A whiteness sensor is fixedly installed on the lower end of the mounting cylinder. A push block 3 is fixedly installed on the lower end of the electric push rod 4.

[0008] Preferably, the upper end of the rotating shaft is fixedly connected to the center of the lower end of the rotating plate, the lower end of the rotating shaft is rotatably connected to the center of the operating table through a bearing sleeve, a motor is fixedly installed at the lower end of the operating table, and the output end of the motor is fixedly connected to the lower end of the rotating shaft through a coupling.

[0009] Preferably, a water storage box is placed on the outer side of the upper end of the operating table, the water storage box is located directly below the circular hole 1, the opening size of the water storage box is larger than the size of the circular hole 1, the push block 1 is located directly below the circular hole 2, and the size of the push block 1 is smaller than the minimum inner diameter of the circular hole 2.

[0010] Preferably, two limit grooves are symmetrically opened at the inner end of the circular hole 2, a water leakage hole is opened on the side wall of the force-bearing plate 1, and two limit blocks are symmetrically fixedly connected to the bottom end of the force-bearing plate 1. When the force-bearing plate is placed in the circular hole 2, the limit blocks are inserted into the limit grooves.

[0011] Preferably, support rod one is fixedly mounted on the outer end of the cylinder, the other end of support rod one is fixedly mounted on the upper end of the operating table, support rod two is fixedly mounted on the outer wall of the mounting cylinder, the lower end of support rod two is fixedly mounted on the upper end of the operating table, support rod three is fixedly mounted on the outer wall of the electric push rod four, and the lower end of support rod three is fixedly mounted on the upper end of the operating table.

[0012] Preferably, the pulp forming component includes an electric push rod 2, a grouting pipe and an operating box. The electric push rod 2 is fixedly installed on the top end of the cylinder. The output end of the electric push rod 2 slides through the top side wall of the cylinder and is fixedly connected to the push block 2. The grouting pipe is fixedly installed on the side wall of the cylinder. The inner end of the grouting pipe is connected and flush with the inner end of the cylinder.

[0013] Preferably, the operation box is fixedly mounted on the outer wall of one end of the cylinder, a slide groove is provided on the inner wall of the cylinder, one end of the slide groove is connected to the operation box, a force-bearing plate 2 is slidably connected in the slide groove, a forming net is fixedly mounted on the upper end of the force-bearing plate 2, and a connecting rod is fixedly mounted on one end of the force-bearing plate 2.

[0014] Preferably, the second stress-bearing plate and the forming net are both circular and have the same diameter. The diameters of the second stress-bearing plate and the forming net are both smaller than the diameter of the chute. When the second stress-bearing plate and the forming net are located in the cylinder, the outer end of the second stress-bearing plate is located in the chute.

[0015] Preferably, an electric push rod three is fixedly installed on the side wall of the operation box away from the cylinder, the output end of the electric push rod three slides through the side wall of the operation box and is fixedly connected to one end of the connecting rod, the upper end of the operation box is fixedly installed with a water inlet pipe, and the lower end is fixedly installed with a water outlet pipe, and the inner ends of the water inlet pipe and the water outlet pipe are connected to the inner end of the operation box.

[0016] Preferably, a diverter pipe is fixedly mounted on the inner wall of the upper end of the operation box via a fixing ring, the diverter pipe is connected and communicated with the water inlet pipe, and a plurality of high-pressure spray heads are fixedly mounted on the lower end of the diverter pipe.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] A fixed amount of pulp is input into the cylinder each time through the external pulp conveying pipe, and the electric push rod 2 is started to drive the push block 2 to squeeze the pulp. Then the electric push rod 3 is started to pull the force plate 1, so that the paper sheet falls into the circular hole 2 and is located at the upper end of the screen. Then the electric drive rotating plate is started again to rotate the paper sheet to the bottom of the push block 3. The electric push rod 4 drives the push block 3 to press the paper sheet, press the paper sheet and squeeze out the moisture again, and then rotate the paper sheet to the lower end of the whiteness sensor for whiteness detection. This test is repeated four times and the test results are compared to obtain data for accurate measurement of pulp whiteness. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a second schematic diagram of the overall structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the upper structure of the rotating plate of the present invention;

[0022] Figure 4 This is a schematic diagram of the first load-bearing plate, the mesh plate and the second circular hole of the present invention;

[0023] Figure 5 A bottom view of a load-bearing plate according to the present invention;

[0024] Figure 6 This is a schematic diagram of the installation of the cylinder, mounting cylinder and electric push rod of the present invention;

[0025] Figure 7 It is a side view of the cylindrical knot of the present invention;

[0026] Figure 8 It is a schematic cross-sectional view of a cylinder according to the present invention;

[0027] Figure 9 This is a schematic diagram of the inner end structure of the operation box of the present invention.

[0028] In the figure: 1. operating table; 2. supporting leg; 3. rotating shaft; 4. motor; 5. water storage box; 6. electric push rod 1; 7. push block 1; 8. rotating plate; 9. round hole 1; 10. round hole 2; 11. limiting groove; 12. force plate 1; 13. limiting block; 14. mesh plate; 15. cylinder; 16. support rod 1; 17. electric push rod 2; 18. push block 2; 19. grouting pipe; 20. operating box; 21. chute; 22. force plate 2; 23. forming net; 24. connecting rod; 25. electric push rod 3; 26. water inlet pipe; 27. water outlet pipe; 28. diversion pipe; 29. ​​fixing ring; 30. high-pressure spray head; 31. mounting cylinder; 32. support rod 2; 33. whiteness sensor; 34. electric push rod 4; 35. push block 3; 36. support rod 3. DETAILED DESCRIPTION

[0029] In order to clearly and completely describe the objectives and technical solutions of the present invention and make the advantages more clearly understood, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figures 1-9The present invention provides a technical solution: an intelligent inspection and control system for online detection of pulp whiteness, comprising: an operating table 1 and a rotating plate 8, the rotating plate 8 is rotatably connected to the upper end of the operating table 1 through a rotating shaft 3, the upper end of the rotating shaft 3 is fixedly connected to the center of the lower end of the rotating plate 8, the lower end of the rotating shaft 3 is rotatably connected to the center of the operating table 1 through a bearing sleeve, a motor 4 is fixedly installed at the lower end of the operating table 1, the output end of the motor 4 is fixedly connected to the lower end of the rotating shaft 3 through a coupling, the motor 4 drives the rotating shaft 3 to rotate, and the rotating shaft 3 drives the rotating plate 8 to rotate, and support legs 2 are fixedly installed on all four sides of the lower end of the operating table 1 to support the operating table 1 and the rotating plate 8, and the outer end of the rotating plate 8 A number of circular holes 9 and circular holes 10 are cross-opened on the side wall circumference, each circular hole 10 is convex, and a force-bearing plate 12 is installed in each circular hole 10. A mesh plate 14 is fixedly installed on the upper end of the force-bearing plate 12. Two limit grooves 11 are symmetrically opened on the inner end of each circular hole 10, and a leakage hole is opened on the side wall of the force-bearing plate 12. Two limit blocks 13 are symmetrically fixedly connected to the bottom end of the force-bearing plate 12. When the force plate 12 is placed in the circular hole 10, the limit block 13 is inserted into the limit groove 11, and the force plate 12 and the mesh plate 14 are installed in the circular hole 10. Every time the motor 4 works, the circular hole 9 or the circular hole 2 10 is rotated to the bottom of the cylinder 15.

[0031] An electric push rod 6, a cylinder 15, a mounting cylinder 31 and an electric push rod 4 34 are respectively installed on the upper end of the operating table 1. A push block 7 is fixedly installed on the upper end of the electric push rod 6. A pulp forming component is provided in the cylinder 15. A whiteness sensor 33 is fixedly installed on the lower end of the mounting cylinder 31. A push block 35 is fixedly installed on the lower end of the electric push rod 4 34. A water storage box 5 is placed on the outer side of the upper end of the operating table 1. The water storage box 5 is located directly below the circular hole 19. The opening size of the water storage box 5 is larger than the size of the circular hole 19. The water storage box 5 can allow the water generated by squeezing the pulp in the cylinder 15 to flow into the water storage box 5 through the circular hole 19 to collect the squeezed waste water.

[0032] A support rod 16 is fixedly mounted on the outer end of the cylinder 15, and the other end of the support rod 16 is fixedly mounted on the upper end of the operating table 1. The inner diameter of the cylinder 15 is smaller than the inner diameter of the circular hole 19 and is the same as the inner diameter of the circular hole 2 10. The lower end of the cylinder 15 is located directly above the circular hole 19 or the circular hole 2 10. A support rod 2 32 is fixedly mounted on the outer wall of the mounting cylinder 31, and the lower end of the support rod 2 32 is fixedly mounted on the upper end of the operating table 1. The whiteness sensor 33 at the lower end of the mounting cylinder 31 is located directly above the circular hole 19 or the circular hole 2 10. When the rotating plate 8 rotates, the circular hole 2 10 containing the paper is rotated to the lower end of the whiteness sensor 33, and the whiteness sensor 33 detects the whiteness of the paper. A support rod 3 36 is fixedly mounted on the outer wall of the electric push rod 4 34. The lower end of the support rod three 36 is fixedly mounted on the upper end of the operating table 1, and the push block three 35 at the lower end of the electric push rod four 34 is located directly above the circular hole one 9 or the circular hole two 10, and the diameter of the push block three 35 is slightly smaller than the maximum inner diameter of the circular hole two 10. When the electric push rod four 34 is started, the push block three 35 is driven to press against the paper piece located at the upper end of the mesh plate 14 to squeeze out the moisture again. The push block one 7 is located directly below the circular hole one 9 or the circular hole two 10, and the size of the push block one 7 is slightly smaller than the minimum inner diameter of the circular hole two 10. When the electric push rod one 6 is started, the push block one 7 is pushed into the circular hole two 10, and the force-bearing plate one 12 and the mesh plate 14 as well as the formed paper piece located at the upper end of the mesh plate 14 are pushed out, so that the staff can remove the paper piece from the mesh plate 14 and replace and clean the mesh plate 14.

[0033] The pulp forming components include an electric push rod 17, a grouting pipe 19 and an operating box 20. The electric push rod 17 is fixedly mounted on the top end of the cylinder 15. The output end of the electric push rod 17 slides through the top side wall of the cylinder 15 and is fixedly connected to a push block 18. The grouting pipe 19 is fixedly mounted on the side wall of the cylinder 15. The inner end of the grouting pipe 19 is connected to and flush with the inner end of the cylinder 15. The outer end of the grouting pipe 19 is connected to an external pulp conveying pipe. The pulp is injected into the cylinder 15 through the grouting pipe 19 via the external pulp conveying pipe.

[0034] The operation box 20 is fixedly mounted on the outer wall of one end of the cylinder 15, and a chute 21 is provided on the inner wall of the cylinder 15. One end of the chute 21 is connected to the operation box 20. A force-bearing plate 22 is slidably connected in the chute 21. A water outlet is provided on the side wall of the force-bearing plate 22. A forming net 23 is fixedly mounted on the upper end of the force-bearing plate 22. A connecting rod 24 is fixedly mounted on one end of the force-bearing plate 22. The force-bearing plate 22 and the forming net 23 are both circular and have the same diameter. The force-bearing plate 22 and the forming net are connected in a sliding manner. The diameters of 23 are smaller than the diameter of the chute 21. When the force-bearing plate 22 and the forming net 23 are located in the cylinder 15, the outer end of the force-bearing plate 22 is located in the chute 21. When the pulp is injected into the cylinder 15, the pulp falls on the upper end of the forming net 23, and then the electric push rod 2 17 is started to drive the push block 2 18 to extrude the pulp, and the pulp is initially extruded and formed. When the pulp is extruded, the cylinder 15 is located directly above the circular hole 1 9, and the waste water generated by the extrusion flows into the water storage box 5 through the circular hole 1 9.

[0035] An electric push rod 3 25 is fixedly installed on the side wall of the end of the operation box 20 away from the cylinder 15. The output end of the electric push rod 3 25 slides through the side wall of the operation box 20 and is fixedly connected to one end of the connecting rod 24. When the output end of the electric push rod 3 25 contracts, the force plate 22 and the forming net 23 are pulled into the operation box 20, leaving the formed paper sheet in the cylinder 15 and falling. At this time, the rotating plate 8 drives the circular hole 2 10 to be located just below the cylinder 15. The paper sheet falls into the circular hole 2 10 and is located at the upper end of the net plate 14. The upper end of the operation box 20 is fixedly installed with a water inlet pipe 26, and the lower end is fixedly installed with a water outlet pipe 2 7. The inner ends of the water inlet pipe 26 and the water outlet pipe 27 are connected to the inner end of the operation box 20. A diverter pipe 28 is fixedly installed on the inner wall of the upper end of the operation box 20 through a fixing ring 29. The diverter pipe 28 is connected and connected to the water inlet pipe 26. A plurality of high-pressure spray heads 30 are fixedly installed at the lower end of the diverter pipe 28. The upper end of the water inlet pipe 26 is connected to an external water pipe. When the mesh plate 14 is located in the operation box 20, the external water pipe supplies water to the water inlet pipe 26. The water is sprayed toward the mesh plate 14 through the diverter pipe 28 and the high-pressure spray head 30 to clean the mesh plate 14. At the same time, the water outlet pipe 27 is connected to a drain pipe to discharge the water generated by cleaning.

[0036] In actual use, before inputting pulp, the cylinder 15 is located just above the circular hole 19, and a fixed amount of pulp is input into the cylinder 15 each time through the external pulp conveying pipe, and the pulp falls on the upper end of the forming net 23, and then the electric push rod 2 17 is started to drive the push block 2 18 to squeeze the pulp, and the pulp is initially squeezed and formed, and then the motor 4 drives the rotating plate 8 to rotate, and the circular hole 2 10 is rotated to just below the cylinder 15, and then the electric push rod 3 25 is started, and the output end of the electric push rod 3 25 contracts to pull the force plate 2 22 and the forming net 23 into the operation box 20, leaving the formed paper sheet in the cylinder 15 and falling, and the paper sheet falls into the circular hole 2 10 and is located at the upper end of the net plate 14, and then the motor 4 is started again to drive the rotating plate 8 to rotate, and the rotating plate 8 rotates with the paper sheet to Directly below the push block three 35, then start the electric push rod four 34, the electric push rod four 34 drives the push block three 35 to press against the paper sheet, again pressing the paper sheet and squeezing out the moisture, and then start the motor 4 again to drive the rotating plate 8 to rotate, and rotate the paper sheet to the lower end of the whiteness sensor 33 for whiteness detection. After the detection is completed, the motor 4 will drive the rotating plate 8 to rotate the detected paper sheet to the upper end of the push block 7, and the electric push rod one 6 will start to push the push block one 7 into the circular hole two 10, pushing out the force plate one 12 and the screen plate 14 as well as the formed paper sheet at the upper end of the screen plate 14, so that the staff can remove the paper sheet from the screen plate 14, and replace and clean the screen plate 14. Repeat this test four times, and compare the test results to obtain data for accurate measurement of the pulp whiteness.

[0037] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent inspection and control system for online detection of pulp brightness, comprising: An operating table (1) and a rotating plate (8), wherein the rotating plate (8) is rotatably connected to the upper end of the operating table (1) via a rotating shaft (3), and support legs (2) are fixedly installed on four sides of the lower end of the operating table (1), characterized in that: a plurality of circular holes (9) and circular holes (10) are cross-opened on the circumference of the outer end side wall of the rotating plate (8), each circular hole (10) is convex, and a force-bearing plate (12) is installed in each circular hole (10), and a mesh plate (14) is fixedly installed on the upper end of the force-bearing plate (12); The upper end of the operating table (1) is respectively equipped with an electric push rod 1 (6), a cylinder (15), a mounting cylinder (31) and an electric push rod 4 (34). The upper end of the electric push rod 1 (6) is fixedly equipped with a push block 1 (7). The push block 1 (7) is located directly below the circular hole 2 (10). The size of the push block 1 (7) is smaller than the minimum inner diameter of the circular hole 2 (10). When the electric push rod 1 (6) is started, the push block 1 (7) is pushed into the circular hole 2 (10), and the force plate 1 (12) and the screen (14) and the formed paper sheet located at the upper end of the screen (14) are pushed out, so that the staff can remove the paper sheet from the screen (14) and replace and clean the screen (14). A pulp forming component is arranged in the cylinder (15). The lower end of the mounting cylinder (31) is fixedly equipped with a whiteness sensor (33). The lower end of the electric push rod 4 (34) is fixedly equipped with a push block 3 (35). The pulp forming component includes an electric push rod 2 (17), a grouting pipe (19) and an operating box (20). The electric push rod 2 (17) is fixedly installed on the top of the cylinder (15). The output end of the electric push rod 2 (17) slides through the top side wall of the cylinder (15) and is fixedly connected to the push block 2 (18). The grouting pipe (19) is fixedly installed on the side wall of the cylinder (15). The inner end of the grouting pipe (19) is connected to the inner end of the cylinder (15) and is flush. The operating box (20) is fixedly installed on the outer wall of one end of the cylinder (15). A chute (21) is provided on the inner wall of the cylinder (15). One end of the chute (21) is connected to the operating box (20). A force plate 2 (22) is slidably connected in the chute (21). The upper end of the force plate 2 (22) is fixedly installed. A forming net (23) is provided, and a connecting rod (24) is fixedly installed at one end of the second force-bearing plate (22). An electric push rod (25) is fixedly installed on the side wall of the end of the operation box (20) away from the cylinder (15). The output end of the electric push rod (25) slides through the side wall of the operation box (20) and is fixedly connected to one end of the connecting rod (24). An inlet pipe (26) is fixedly installed at the upper end of the operation box (20), and an outlet pipe (27) is fixedly installed at the lower end. The inner ends of the inlet pipe (26) and the outlet pipe (27) are both connected to the inner end of the operation box (20). Water is sprayed toward the mesh plate (14) through the diversion pipe (28) and the high-pressure spray head (30) to clean the mesh plate (14). At the same time, the outlet pipe (27) is externally connected to a drain pipe to discharge the water generated by cleaning.

2. The intelligent inspection and control system for online detection of pulp brightness according to claim 1, characterized in that: The upper end of the rotating shaft (3) is fixedly connected to the center of the lower end of the rotating plate (8), and the lower end of the rotating shaft (3) is rotatably connected to the center of the operating table (1) through a bearing sleeve. The lower end of the operating table (1) is fixedly mounted with a motor (4), and the output end of the motor (4) is fixedly connected to the lower end of the rotating shaft (3) through a coupling.

3. The intelligent inspection and control system for online detection of pulp brightness according to claim 1, characterized in that: A water storage box (5) is placed on the outer side of the upper end of the operating table (1). The water storage box (5) is located directly below the circular hole (9). The opening size of the water storage box (5) is larger than the size of the circular hole (9).

4. The intelligent inspection and control system for online detection of pulp brightness according to claim 1, characterized in that: Two limiting grooves (11) are symmetrically provided at the inner end of the second circular hole (10), a water leakage hole is provided on the side wall of the first force-bearing plate (12), and two limiting blocks (13) are symmetrically fixedly connected to the bottom end of the first force-bearing plate (12). When the force-bearing plate (12) is placed in the second circular hole (10), the limiting blocks (13) are inserted into the limiting grooves (11).

5. The intelligent inspection and control system for online detection of pulp brightness according to claim 1, characterized in that: A support rod 1 (16) is fixedly mounted on the outer end of the cylinder (15), and the other end of the support rod 1 (16) is fixedly mounted on the upper end of the operating table (1). A support rod 2 (32) is fixedly mounted on the outer wall of the mounting cylinder (31), and the lower end of the support rod 2 (32) is fixedly mounted on the upper end of the operating table (1). A support rod 3 (36) is fixedly mounted on the outer wall of the electric push rod 4 (34), and the lower end of the support rod 3 (36) is fixedly mounted on the upper end of the operating table (1).

6. The intelligent inspection and control system for online detection of pulp brightness according to claim 1, characterized in that: The second load-bearing plate (22) and the forming net (23) are both circular and have the same diameter. The diameters of the second load-bearing plate (22) and the forming net (23) are both smaller than the diameter of the chute (21). When the second load-bearing plate (22) and the forming net (23) are located in the cylinder (15), the outer end of the second load-bearing plate (22) is located in the chute (21).

7. The intelligent inspection and control system for online detection of pulp brightness according to claim 1, characterized in that: A diverter pipe (28) is fixedly mounted on the inner wall of the upper end of the operation box (20) via a fixing ring (29). The diverter pipe (28) is connected and communicated with the water inlet pipe (26). A plurality of high-pressure spray heads (30) are fixedly mounted on the lower end of the diverter pipe (28).

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