A washing and screening device for manufacturing lightweight white paper

Abstract

A washing and screening device for manufacturing lightweight white paper, the invention relates to the technical field of white paper manufacturing, wherein washing mechanisms are respectively arranged in a washing box; a plurality of washing mechanisms are distributed in sequence from high to low from right to left; a collecting mechanism is arranged at the bottom of the washing box; a dispersing mechanism is arranged on the right side of the washing box; while the raw materials are fully and continuously washed and flushed, the loss of raw material fibers is reduced; dirt, stones and impurities are blocked to avoid clogging of sewers; the stacked raw materials are scattered and laid flat, so that the staff can check the raw materials, detect the raw materials that are not cleaned, and wash them again.

Description

Technical Field

[0001] The invention relates to the technical field of white paper manufacturing, and in particular to a washing and screening device for manufacturing lightweight white paper. Background Art

[0002] When manufacturing white paper, raw materials, such as branches and wood chips, need to be washed and screened to remove impurities such as stones on the raw materials; the current washing method, such as drum washing, requires large mechanical power and can only be washed in batches, which is inefficient and inconvenient to screen and sort after washing. Therefore, a washing and screening device for lightweight white paper manufacturing is proposed. Summary of the invention

[0003] The purpose of the present invention is to address the defects and shortcomings of the prior art and to propose a washing and screening device for lightweight white paper manufacturing, which reduces the loss of raw material fibers while fully and continuously washing and flushing the raw materials; dirt, stones and impurities are blocked to avoid clogging of sewers; the stacked raw materials are broken up and laid flat to facilitate the inspection of the raw materials by the staff, and the uncleaned raw materials can be detected for re-washing.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is: it comprises a washing box, a support leg and a feed hopper; the support legs are fixed at the four corners of the bottom of the washing box; the feed hopper is connected through the right side of the top plate of the washing box; an outlet is provided at the lower part of the left side wall of the washing box;

[0005] It also contains:

[0006] The washing mechanism is a plurality of washing mechanisms, and each of the washing mechanisms is disposed in the washing box; the washing mechanisms are arranged from right to left and from high to low;

[0007] A collecting mechanism, wherein the collecting mechanism is arranged at the bottom of the washing box;

[0008] A dispersion mechanism, wherein the dispersion mechanism is arranged on the right side of the washing box;

[0009] Through the above technical solution design, raw materials are added into the washing box from the feed hopper; the raw materials pass through the washing mechanism in turn, and the washed dirt and stones are collected by the collecting mechanism to avoid the difficulty of sewage discharge; the washed raw materials enter the dispersing mechanism, so that the raw materials are spread out for easy screening.

[0010] Preferably, the washing mechanism comprises:

[0011] Conveyor No. 1, the conveyor No. 1 is arranged in the washing box, the conveyor No. 1 is connected to an external power supply, the conveyor No. 1 belt on the conveyor No. 1 is a mesh belt, and the front and rear ends of the conveyor No. 1 are respectively abutted against the front and rear inner side walls of the washing box; the left end of the conveyor No. 1 located at the top is arranged at the upper right of the conveyor No. 1 below;

[0012] Water pipes, the number of which is several and arranged in two rows; the upper water pipe is arranged above the No. 1 conveyor belt, and the lower water pipe is arranged inside the No. 1 conveyor belt; the water pipes are fixed to the front and rear inner walls of the washing box and connected to an external water source;

[0013] High-pressure nozzles, the number of which is several and connected to the water pipes respectively, the several high-pressure nozzles located at the top are respectively arranged front and back at the lower end of the water pipes at the top, the high-pressure nozzles located at the bottom are respectively arranged front and back at the upper end of the water pipes at the bottom, and the high-pressure nozzles located at the bottom are arranged on the inner side of the No. 1 conveyor belt;

[0014] Through the above technical solution design, conveyor No. 1 is started and connected to the water source, so that the high-pressure nozzles spray to conveyor No. 1 from the top and bottom respectively, and the raw materials fall from the feed hopper into the washing box and fall on the top conveyor No. 1. Under the action of conveyor No. 1, the raw materials move left on conveyor No. 1, and the high-pressure nozzles spray water to flush the raw materials. The flushed mud and stones fall on the bottom plate of the washing box; the raw materials move from conveyor No. 1 on the right to the end of conveyor No. 1, so that the raw materials turn over when falling, and fall on conveyor No. 1 on the lower left, and continue to be flushed, so that the raw materials can be fully rinsed, reducing the loss of raw material fibers.

[0015] Preferably, the collecting mechanism comprises:

[0016] A drain pipe, wherein the drain pipe is connected to the bottom plate of the washing box, and the bottom plate of the washing box is inclined from high to low from the outside to the drain pipe;

[0017] A threaded pipe, wherein the threaded pipe is screwed to the bottom of the drain pipe;

[0018] A filter screen, wherein the filter screen is fixed to the bottom of the inner ring wall of the threaded pipe;

[0019] A drainage hose, which is glued and fixed to the bottom of the threaded pipe and connected through it, and is connected to an external drainage point;

[0020] Through the above technical solution design, the washed muddy water and stones fall on the bottom plate of the washing box and gradually gather in the drain pipe. The mud, stones and impurities fall on the filter and the sewage is discharged through the drain hose. After use, unscrew the threaded pipe to dispose of the impurities on the filter.

[0021] Preferably, the dispersion mechanism comprises:

[0022] No. 2 conveyor, the No. 2 conveyor is arranged on the left side of the washing box, the No. 2 conveyor is connected to an external power supply, the right end of the No. 2 conveyor is arranged in the outlet and is located at the lower left of the lowest No. 1 conveyor; the No. 2 conveyor belt on the No. 2 conveyor is a mesh belt; the front and rear of the No. 2 conveyor belt are respectively arranged against the front and rear inner walls of the washing box;

[0023] Limiting plates, the number of which is two, and they are fixed respectively before and after the outlet of the washing box; the limiting plates are arranged before and after the second conveyor belt;

[0024] A connecting rod, wherein the connecting rod is fixed above the outlet of the washing box;

[0025] A motor, wherein the motor is fixed on the connecting rod and connected to an external power source;

[0026] The rotating shaft is arranged at the lower left end of the connecting rod. The output shaft of the motor passes through the connecting rod through the shaft and the bearing and is connected to the rotating shaft. A square groove is provided in the rotating shaft.

[0027] A square rod, wherein the square rod is movably inserted into the square groove;

[0028] A spring, wherein the spring is fixed on the inner top plate of the square groove, and the other end of the spring is fixed to the square rod;

[0029] Dispersion rods, the number of which is several and fixed on the left and right side walls of the square rod respectively, and the dispersion rods are staggered up and down;

[0030] Through the above technical solution design, the motor and the No. 2 conveyor are started. When the raw materials fall from the bottom No. 1 conveyor belt to the No. 2 conveyor belt, the rotating shaft rotates, causing the dispersion rod to rotate, and the raw materials move left on the No. 2 conveyor belt. The dispersion rod breaks up the stacked raw materials and spreads them flat, making it convenient for the staff to check the raw materials and detect the uncleaned raw materials for rewashing.

[0031] Preferably, a support roller is movably abutted against the lower end of the upper belt of the No. 1 conveyor belt, and the front and rear ends of the support roller are respectively screwed to the front and rear inner side walls of the washing box through shafts and bearings;

[0032] Through the above technical solution design, support rollers are used to support conveyor belt No. 1 to prevent raw materials from crushing conveyor belt No. 1.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] 1. Equipped with a washing mechanism, which can fully and continuously wash and flush the raw materials while reducing the loss of raw material fibers;

[0035] 2. Equipped with a collection mechanism, soil, stones and impurities are blocked to avoid blocking the sewer;

[0036] 3. A dispersing mechanism is provided to spread out the stacked raw materials, so that the staff can check the raw materials and detect the raw materials that are not cleaned for re-washing. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0038] Figure 1 It is a structural schematic diagram of the present invention.

[0039] Figure 2 It is a schematic diagram of the internal structure of the present invention.

[0040] Figure 3 yes Figure 2 Enlarged view of part A in .

[0041] Figure 4 yes Figure 2 Enlarged view of section C in .

[0042] Figure 5 yes Figure 2 Enlarged view of part B in .

[0043] Description of reference numerals:

[0044] Washing box 1, outlet 1-1, support leg 2, feed hopper 3, washing mechanism 4, conveyor No. 1 4-1, conveyor No. 1 4-1-1, water pipe 4-2, high-pressure nozzle 4-3, support roller 4-4, collecting mechanism 5, drain pipe 5-1, threaded pipe 5-2, filter screen 5-3, drain hose 5-4, dispersion mechanism 6, conveyor No. 2 6-1, conveyor No. 2 6-1-1, limit plate 6-2, connecting rod 6-3, motor 6-4, rotating shaft 6-5, square groove 6-5-1, square rod 6-6, spring 6-7, dispersion rod 6-8. DETAILED DESCRIPTION

[0045] The present invention will be further described below in conjunction with the accompanying drawings. Embodiment 1:

[0046] See also Figure 1-Figure 5, this embodiment 1 comprises a washing box 1, a support leg 2 and a feed hopper 3; the four corners of the bottom of the washing box 1 are fixed with the support leg 2 by bolts; the right side of the top plate of the washing box 1 is connected with the feed hopper 3; the lower part of the left side wall of the washing box 1 is provided with an outlet 1-1;

[0047] It also contains:

[0048] The washing mechanism 4 is a plurality of washing mechanisms 4, and each of the washing mechanisms 4 is disposed in the washing box 1; the washing mechanisms 4 are arranged from right to left in a descending order;

[0049] A collecting mechanism 5, wherein the collecting mechanism 5 is arranged at the bottom of the washing box 1;

[0050] A dispersion mechanism 6, wherein the dispersion mechanism 6 is arranged on the right side of the washing box 1;

[0051] In Example 1, raw materials are added to the washing box 1 from the feed hopper 3; the raw materials pass through the washing mechanism 4 in turn, and the washed dirt and stones are collected by the collecting mechanism 5 to avoid the difficulty of sewage discharge; the washed raw materials enter the dispersing mechanism 6, so that the raw materials are spread out for easy screening. Embodiment 2:

[0052] See also Figure 2 and Figure 4 , based on Example 1, the washing mechanism 4 comprises;

[0053] Conveyor No. 4-1, said conveyor No. 4-1 is arranged in the washing box 1, and the conveyor No. 4-1 is connected to an external power supply. The conveyor No. 4-1-1 on the conveyor No. 4-1 is a mesh belt. The front and rear of the conveyor No. 4-1-1 are respectively against the front and rear inner walls of the washing box 1. The specific use model of the conveyor No. 4-1-1 is directly purchased and installed from the market according to actual use requirements and used; the left end of the upper conveyor No. 1 4-1-1 is arranged at the upper right of the lower conveyor No. 1 4-1-1;

[0054] Water pipes 4-2, the number of the water pipes 4-2 is several, and they are arranged in two rows; the upper water pipe 4-2 is arranged above the No. 1 conveyor belt 4-1-1, and the lower water pipe 4-2 is arranged inside the No. 1 conveyor belt 4-1-1; the water pipes 4-2 are fixed to the front and rear inner walls of the washing box 1, and are connected to an external water source;

[0055] High-pressure nozzles 4-3, the number of the high-pressure nozzles 4-3 is several, and they are respectively connected with the water pipe 4-2, the several high-pressure nozzles 4-3 located at the top are respectively arranged front and back at the lower end of the upper water pipe 4-2, the high-pressure nozzles 4-3 located at the bottom are respectively arranged front and back at the upper end of the lower water pipe 4-2, and the high-pressure nozzles 4-3 located at the bottom are arranged at the inner side of the No. 1 conveyor belt 4-1-1;

[0056] In this embodiment, the No. 1 conveyor 4-1 is started and connected to the water source, so that the high-pressure nozzle 4-3 sprays to the No. 1 conveyor belt 4-1-1 from the top and the bottom respectively, and the raw materials fall from the feed hopper 3 into the washing box 1 and fall on the top conveyor belt 4-1-1. Under the action of the No. 1 conveyor belt 4-1-1, the raw materials move left on the No. 1 conveyor belt 4-1-1, and the high-pressure nozzle 4-3 sprays water to flush the raw materials. The flushed muddy water and stones fall on the bottom plate of the washing box 1; the raw materials move from the No. 1 conveyor belt 4-1-1 on the right to the end and fall, so that the raw materials turn over when falling and fall on the No. 1 conveyor belt 4-1-1 on the lower left, and continue to flush, so that the raw materials can be fully rinsed, reducing the loss of raw material fibers. Embodiment 3:

[0057] See also Figure 2 and Figure 5 , based on Example 2, the collecting mechanism 5 comprises;

[0058] A drain pipe 5-1, wherein the drain pipe 5-1 is connected to the bottom plate of the washing box 1, and the bottom plate of the washing box 1 is inclined from high to low from the outside to the direction of the drain pipe 5-1;

[0059] A threaded pipe 5-2, wherein the threaded pipe 5-2 is screwed to the bottom of the drain pipe 5-1 by means of bolts;

[0060] A filter screen 5-3, wherein the filter screen 5-3 is fixed to the bottom of the inner ring wall of the threaded tube 5-2 by bolts;

[0061] Drain hose 5-4, the drain hose 5-4 is glued and fixed to the bottom of the threaded tube 5-2 and connected through it, and the drain hose 5-4 is connected to the external drainage;

[0062] With this embodiment, the washed muddy water and stones fall on the bottom plate of the washing box 1 and gradually gather in the drain pipe 5-1, the mud, stones and impurities fall on the filter 5-3, and the sewage is discharged through the drain hose 5-4; after use, unscrew the threaded pipe 5-2 to dispose of the impurities on the filter 5-3. Embodiment 4:

[0063] See also Figure 1-Figure 3 , based on Example 2, the dispersion mechanism 6 comprises:

[0064] No. 2 conveyor 6-1, the No. 2 conveyor 6-1 is arranged on the left side of the washing box 1, the No. 2 conveyor 6-1 is connected to an external power supply, the right end of the No. 2 conveyor 6-1 is arranged in the outlet 1-1 and is located at the lower left of the No. 1 conveyor 4-1 at the bottom, and the specific use model of the No. 2 conveyor 6-1 is directly purchased and installed from the market according to actual use requirements and used; the No. 2 conveyor belt 6-1-1 on the No. 2 conveyor 6-1 is a mesh belt; the front and rear of the No. 2 conveyor belt 6-1-1 are respectively set against the front and rear inner walls of the washing box 1;

[0065] The limiting plates 6-2 are two in number and are respectively fixed to the front and rear of the outlet 1-1 on the washing box 1 by bolts; the limiting plates 6-2 are arranged in front and rear of the second conveyor belt 6-1-1;

[0066] A connecting rod 6-3, wherein the connecting rod 6-3 is fixed above the outlet 1-1 of the washing box 1 by bolts;

[0067] Motor 6-4, the motor 6-4 is fixed to the connecting rod 6-3 by bolts, the motor 6-4 is connected to an external power supply, and the specific model of the motor 6-4 is purchased directly from the market and installed and used according to actual use requirements;

[0068] The rotating shaft 6-5 is arranged at the lower left end of the connecting rod 6-3. The output shaft of the motor 6-4 passes through the connecting rod 6-3 through the shaft and the bearing, and is connected to the rotating shaft 6-5. A square groove 6-5-1 is opened in the rotating shaft 6-5.

[0069] A square rod 6-6, wherein the square rod 6-6 is movably inserted into the square groove 6-5-1;

[0070] Spring 6-7, the spring 6-7 is fixed to the inner top plate of the square groove 6-5-1 by bolts, and the other end of the spring 6-7 is fixed to the square rod 6-6 by bolts;

[0071] Dispersion rods 6-8, the number of which is several and fixed to the left and right side walls of the square rod 6-6 by bolts respectively, and the dispersion rods 6-8 are staggered up and down;

[0072] With this embodiment, the motor 6-4 and the No. 2 conveyor 6-1 are started. When the raw materials fall from the No. 1 conveyor belt 4-1-1 at the bottom to the No. 2 conveyor belt 6-1-1, the rotating shaft 6-5 rotates, causing the dispersion rod 6-8 to rotate, and the raw materials move left on the No. 2 conveyor belt 6-1-1. The dispersion rod 6-8 breaks up the stacked raw materials and spreads them out, making it easier for the staff to check the raw materials and remove the uncleaned raw materials for rewashing. Embodiment 5:

[0073] See also Figure 4On the basis of Example 2, the lower end of the upper belt of the No. 1 conveyor belt 4-1-1 is movably opposed to a support roller 4-4, and the front and rear ends of the support roller 4-4 are respectively screwed to the front and rear inner walls of the washing box 1 through shafts and bearings;

[0074] With this embodiment, the support roller 4-4 is used to support the No. 1 conveyor belt 4-1-1 to prevent the raw materials from crushing the No. 1 conveyor belt 4-1-1.

[0075] When the present invention is in use, raw materials are added into the washing box 1 from the feed hopper 3; the No. 1 conveyor 4-1, the motor 6-4 and the No. 2 conveyor 6-1 are started, and the water source is connected, so that the high-pressure nozzle 4-3 sprays from the top and the bottom to the No. 1 conveyor belt 4-1-1, respectively, and the raw materials fall from the feed hopper 3 into the washing box 1 and fall on the No. 1 conveyor belt 4-1-1 at the top. Under the action of the No. 1 conveyor belt 4-1-1, the raw materials move left on the No. 1 conveyor belt 4-1-1, and the high-pressure nozzle 4-3 sprays water to flush the raw materials, and the washed muddy water and stones fall on the bottom plate of the washing box 1; the raw materials move from the No. 1 conveyor belt 4-1-1 on the right to the end and fall, so that the raw materials turn over when falling and fall on the No. 1 conveyor belt 4-1-1 at the lower left. 1-1, continue to flush, so that the raw materials can be fully flushed, reduce the loss of raw material fiber; when the raw materials fall from the bottom No. 1 conveyor belt 4-1-1 to the No. 2 conveyor belt 6-1-1, the rotating shaft 6-5 rotates, so that the dispersion rod 6-8 rotates, and the raw materials move left on the No. 2 conveyor belt 6-1-1, and the dispersion rod 6-8 breaks up and spreads the stacked raw materials, which is convenient for the staff to check the raw materials and detect the uncleaned raw materials for re-washing; the washed muddy water and stones fall on the bottom plate of the washing box 1, and gradually gather in the drain pipe 5-1, the mud, stones and impurities fall on the filter screen 5-3, and the sewage is discharged through the drain hose 5-4; after use, unscrew the threaded pipe 5-2 to deal with the impurities on the filter screen 5-3.

[0076] After adopting the above structure, the beneficial effects of this specific implementation are:

[0077] 1. A washing mechanism 4 is provided to fully and continuously wash and flush the raw materials, while reducing the loss of raw material fibers;

[0078] 2. A collection mechanism 5 is provided to block soil, stones and impurities to avoid blocking the sewer;

[0079] 3. A dispersing mechanism 6 is provided to spread out the stacked raw materials, so that the staff can check the raw materials and detect the raw materials that are not cleaned for re-washing.

[0080] The above description is only used to illustrate the technical solution of the present invention rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A washing and screening device for manufacturing lightweight white paper, comprising a washing box (1), a support foot (2) and a feed hopper (3); the support feet (2) are fixed to the four corners of the bottom of the washing box (1); the feed hopper (3) is connected to the right side of the top plate of the washing box (1); an outlet (1-1) is provided at the lower part of the left side wall of the washing box (1); It is characterized in that It also contains: Washing mechanisms (4), the number of the washing mechanisms (4) being several and being respectively arranged in the washing box (1); the washing mechanisms (4) being distributed in order from high to low from right to left; the washing mechanisms (4) each comprising; A No. 1 conveyor (4-1), the No. 1 conveyor (4-1) being arranged in the washing box (1), the No. 1 conveyor (4-1) being connected to an external power source, the No. 1 conveyor belt (4-1-1) on the No. 1 conveyor (4-1) being a mesh belt, the front and rear ends of the No. 1 conveyor belt (4-1-1) respectively abutting against the front and rear inner side walls of the washing box (1); the left end of the No. 1 conveyor belt (4-1-1) located at the top is arranged at the upper right side of the No. 1 conveyor belt (4-1-1) at the bottom; Water pipes (4-2), the number of the water pipes (4-2) being several and arranged in two rows, upper and lower; the upper water pipe (4-2) being arranged above the first conveyor belt (4-1-1), and the lower water pipe (4-2) being arranged inside the first conveyor belt (4-1-1); the water pipes (4-2) being fixed to the front and rear inner walls of the washing box (1), and being connected to an external water source; High-pressure nozzles (4-3), the number of the high-pressure nozzles (4-3) being several and respectively connected to the water pipe (4-2), the several high-pressure nozzles (4-3) located at the top being respectively arranged front and rear at the lower end of the water pipe (4-2) at the top, the high-pressure nozzles (4-3) located at the bottom being respectively arranged front and rear at the upper end of the water pipe (4-2) at the bottom, and the high-pressure nozzles (4-3) located at the bottom being arranged on the inner side of the No. 1 conveyor belt (4-1-1); Start the No. 1 conveyor (4-1) and connect it to a water source so that the high-pressure nozzle (4-3) sprays water from the top and bottom of the No. 1 conveyor belt (4-1-1), and the raw materials fall from the feed hopper (3) into the washing box (1) and fall on the No. 1 conveyor belt (4-1-1) at the top. Under the action of the No. 1 conveyor belt (4-1-1), the raw materials move left on the No. 1 conveyor belt (4-1-1), and the high-pressure nozzle (4-3) sprays water to wash the raw materials, and the washed muddy water and stones fall on the bottom plate of the washing box (1); the raw materials move from the No. 1 conveyor belt (4-1-1) on the right to the end and fall, so that the raw materials turn over when falling and fall on the No. 1 conveyor belt (4-1-1) at the lower left, and continue to wash, so that the raw materials can be fully washed; A collecting mechanism (5), wherein the collecting mechanism (5) is arranged at the bottom of the washing box (1); A dispersion mechanism (6), wherein the dispersion mechanism (6) is arranged on the right side of the washing box (1); the dispersion mechanism (6) comprises: A No. 2 conveyor (6-1), the No. 2 conveyor (6-1) being arranged on the left side of the washing box (1), the No. 2 conveyor (6-1) being connected to an external power supply, the right end of the No. 2 conveyor (6-1) being arranged in the outlet (1-1) and being located at the lower left of the No. 1 conveyor (4-1) at the bottom; the No. 2 conveyor belt (6-1-1) on the No. 2 conveyor (6-1) being a mesh belt; the front and rear ends of the No. 2 conveyor belt (6-1-1) are respectively abutted against the front and rear inner side walls of the washing box (1); Limiting plates (6-2), the number of the limiting plates (6-2) being two, and being fixed respectively before and after the outlet (1-1) on the washing box (1); the limiting plates (6-2) are arranged before and after the second conveyor belt (6-1-1); A connecting rod (6-3), wherein the connecting rod (6-3) is fixed above the outlet (1-1) of the washing box (1); A motor (6-4), wherein the motor (6-4) is fixed on the connecting rod (6-3), and the motor (6-4) is connected to an external power source; A rotating shaft (6-5), wherein the rotating shaft (6-5) is arranged at the lower left end of the connecting rod (6-3); the output shaft of the motor (6-4) is connected to the rotating shaft (6-5) after passing through the connecting rod (6-3) through a shaft and a bearing; a square groove (6-5-1) is provided in the rotating shaft (6-5); A square rod (6-6), wherein the square rod (6-6) is movably inserted into the square groove (6-5-1); A spring (6-7), wherein the spring (6-7) is fixed on the inner top plate of the square groove (6-5-1), and the other end of the spring (6-7) is fixed to the square rod (6-6); Dispersion rods (6-8), the number of the dispersion rods (6-8) being several and respectively fixed on the left and right side walls of the square rod (6-6), and the dispersion rods (6-8) being arranged in an upper and lower staggered manner; The motor (6-4) and the second conveyor (6-1) are started. When the raw materials fall from the bottom first conveyor belt (4-1-1) to the second conveyor belt (6-1-1), the rotating shaft (6-5) rotates, causing the dispersion rod (6-8) to rotate, and the raw materials move leftward on the second conveyor belt (6-1-1). The dispersion rod (6-8) breaks up the stacked raw materials and spreads them flat, making it easier for staff to check the raw materials and remove the raw materials that are not cleaned and rewash them; Raw materials are added from a feed hopper (3) into a washing box (1); the raw materials are sequentially passed through a washing mechanism (4), and the washed dirt and stones are collected by a collecting mechanism (5) to avoid difficulty in discharging wastewater; The washed raw materials enter the dispersion mechanism (6), so that the raw materials are spread out for easy screening.

2. A washing and screening device for manufacturing lightweight white paper according to claim 1, characterized in that: The collecting mechanism (5) comprises: A drainage pipe (5-1), wherein the drainage pipe (5-1) is connected to the bottom plate of the washing box (1), and the bottom plate of the washing box (1) is arranged to be inclined from high to low from the outside toward the drainage pipe (5-1); A threaded pipe (5-2), wherein the threaded pipe (5-2) is screwed to the bottom of the drainage pipe (5-1); A filter screen (5-3), wherein the filter screen (5-3) is fixed to the bottom of the inner ring wall of the threaded tube (5-2); A drainage hose (5-4), wherein the drainage hose (5-4) is glued and fixed to the bottom of the threaded tube (5-2) and is connected through the drainage hose (5-4), and the drainage hose (5-4) is connected to an external drainage location; The washed muddy water and stones fall on the bottom plate of the washing box (1) and gradually gather in the drainage pipe (5-1), the muddy stones and impurities fall on the filter screen (5-3), and the sewage is discharged through the drainage hose (5-4); after use, the threaded pipe (5-2) is unscrewed to dispose of the impurities on the filter screen (5-3).

3. The washing and screening device for manufacturing lightweight white paper according to claim 1, characterized in that: The lower end of the upper surface belt of the No. 1 conveyor belt (4-1-1) is movably abutted against a support roller (4-4), and the front and rear ends of the support roller (4-4) are respectively screwed to the front and rear inner side walls of the washing box (1) through a shaft and a bearing; The support roller (4-4) is used to support the No. 1 conveyor belt (4-1-1) to prevent the raw materials from crushing the No. 1 conveyor belt (4-1-1).

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