阅读说明：本技术 一种纸浆漂白装置 (Paper pulp bleaching device ) 是由 张世山 于 2020-07-22 设计创作，主要内容包括：本发明提供一种纸浆漂白装置,涉及造纸技术领域。该一种纸浆漂白装置包括机壳,进料斜板,进料圆管,电机支架,打散机构,进水管,排液机构,开合板,清洗箱,排水管,滑槽,清洗机构,底座支架,进料圆管穿过机壳顶端与机壳顶端固定连接,进料管顶端固定连接有电机支架,进料管中部有进料斜板穿过并与进料圆管固定连接,进料圆管下方设置有打散机构,机壳内部靠近底端设置有排液机构,机壳下方固定连接有清洗箱,清洗箱内部设有清洗机构,清洗箱内部左右两侧设置有滑槽,清洗箱右侧靠近底端固定连接有排水管,清洁箱底端固定连接有底座支架,从而解决了纸浆漂白过程中纸浆粘结成块以及纸浆漂白效率低的问题。(The invention provides a paper pulp bleaching device, and relates to the technical field of papermaking. The paper pulp bleaching device comprises a casing, a feeding inclined plate, a feeding round pipe, a motor support, a scattering mechanism, a water inlet pipe, a drainage mechanism, an opening plate, a cleaning box, a drainage pipe, a chute, a cleaning mechanism and a base support, wherein the feeding round pipe penetrates through the top end of the casing and is fixedly connected with the top end of the casing, the top end of the feeding pipe is fixedly connected with the motor support, the feeding inclined plate in the middle of the feeding pipe penetrates through and is fixedly connected with the feeding round pipe, the scattering mechanism is arranged below the feeding round pipe, the drainage mechanism is arranged near the bottom end inside the casing, the cleaning box is fixedly connected below the casing, the cleaning mechanism is arranged inside the cleaning box, the chutes are arranged on the left side and the right side inside of the cleaning box, the, thereby solving the problems of paper pulp caking and low paper pulp bleaching efficiency in the paper pulp bleaching process.)

1. The utility model provides a paper pulp bleaching device, includes casing (1), feeding swash plate (2), feeding pipe (3), motor support (4), breaks up mechanism (5), inlet tube (6), drainage mechanism (7), open-close plate (8), washs case (9), drain pipe (10), spout (11), wiper mechanism (12), base support (13), its characterized in that: the top end of the casing (1) is provided with a feeding circular tube (3) penetrating casing (1) and fixedly connected with the casing (1), the top end of the feeding circular tube (3) is fixedly connected with a motor support (4), the middle part of the feeding circular tube (3) is provided with a feeding inclined plate (2) which penetrates through the feeding circular tube (3), the top end of the inside of the casing (1) is fixedly connected with a scattering mechanism (5), the left side and the right side of the casing (1) are provided with water inlet tubes (6) which penetrate through the feeding circular tube, the water inlet tubes (6) are fixedly connected with the casing (1), the bottom end of the inside of the casing (1) is provided with a liquid drainage mechanism (7) which penetrates through the discharging mechanism and is fixedly connected with the casing (1), the bottom end of the casing (1) is fixedly connected with a cleaning box (9), the top end of the inside of the cleaning box (9) is provided with an opening plate (8, the bottom end in the cleaning box (9) is provided with a cleaning mechanism (12) which penetrates through and is fixedly connected with the cleaning box (9), the two sides of the cleaning mechanism are slidably connected with a sliding groove (11), the bottom end of the cleaning box (9) is fixedly connected with a base support (13), and the right side of the cleaning box (9) is fixedly connected with a drain pipe (10).

2. A pulp bleaching plant according to claim 1, characterized in that: the front surface of the cleaning box (9) is provided with an opening, the top end of the opening is fixedly connected with a hinge (901), a sealing plate (902) is fixedly connected below the hinge (901), one side of the opening plate (8) is fixedly connected with a stop block (903), and the stop block penetrates through the cleaning box (9) and is movably connected with the cleaning box (9).

3. A pulp bleaching plant according to claim 1, characterized in that: the scattering mechanism (5) comprises a water inlet tank (501) fixedly connected with the top end of the machine shell (1), a guide pipe (502) is fixedly connected with the right side of the water inlet tank (501), a water suction pump (503) is fixedly connected with the right side of the guide pipe, the bottom end of the water suction pump (503) is fixedly connected with the top end of the machine shell (1), an annular round pipe (504) is arranged in the middle of the bottom end inside the water inlet tank (501), the annular round pipe (504) penetrates through the top end of the machine shell (1) and is fixedly connected with the bottom end of the water inlet tank (501) and the machine shell (1), a conical cylinder (505) is fixedly connected below the annular round pipe (504), a scattering device (506) is arranged at the bottom end inside the conical cylinder (505), a rotating shaft (507) penetrates through the axis of the scattering device (506), the top end of the rotating shaft (507) penetrates through the feeding round pipes (3) and (3) to be fixedly connected with the output end of, a transmission speed reducer (509) is arranged below the annular circular tube (504), the transmission speed reducer (509) is fixedly connected with the bottom end of the rotating shaft (507), a stirring device (510) is fixedly connected below the transmission speed reducer (509), the middle of the stirring device is rotatably connected with a support (511), and two sides of the support (511) are fixedly connected with the inner wall of the machine shell (1).

4. A pulp bleaching plant according to claim 1, characterized in that: the scattering device (506) comprises a disc (5061) arranged in a conical cylinder (505), a first propeller (5062) is arranged above the disc (5061), a second propeller (5063) is arranged above the first propeller (5063), a third propeller (5064) is arranged near the bottom end in a feeding circular tube (3) above the second propeller (5063), the first propeller (5062), the second propeller (5063), a rotating shaft (507) penetrates through and is fixedly connected with the rotating shaft (507) on the axis of the third propeller (5064), the rotating shaft (507) penetrates through the disc (5061) and the disc (5061), and the diameter of the second propeller (5063) is smaller than that of the third propeller (5064).

5. A pulp bleaching plant according to claim 4, characterized in that: first screw (5062), second screw (5063) oar are the arc, and the arc internal angle is greater than 90 degrees external angle and is less than 130 degrees, arc one side perpendicular to pivot, first screw (5062), second screw (5063) internal angle on same direction of rotation, and cyclic annular pipe (504) are equipped with the opening with toper drum (505) junction, and cyclic annular pipe (504) are equipped with the opening with intake case (501) junction.

6. A pulp bleaching plant according to claim 1, characterized in that: the liquid drainage mechanism (7) comprises gas outlet plates (701) fixedly connected with the two sides of the inner wall of the machine shell (1) close to the bottom end, round holes are uniformly formed in the gas outlet plates (701), one side, back to the machine shell (1), of the gas outlet plates (701) is connected with a gas inlet pipe (702) through the round holes, one side, far away from the gas outlet plates (701), of the gas inlet pipe (702) is connected with a round pipe (703), a one-way gas valve (704) is fixedly connected above the round pipe (703), a hose (705) is fixedly connected above the one-way gas valve (704), the other end of the hose (705) is fixedly connected with the output end of a gas pump (706), a liquid drainage pipe (707) is arranged below the gas inlet plate (701) on the left side in the machine shell (1), the right side of the liquid drainage pipe (707) penetrates through the inner wall of the machine shell (1) and is fixedly connected with the inner wall of the, a column (709) is connected in the left side of the liquid discharge pipe (707), the column (709) is rotatably connected with the liquid discharge pipe (707), the right side of the liquid discharge pipe (707) is connected with an anti-blocking device (710), and the bottom end of the liquid collection tank (711) is fixedly connected with the base support (13).

7. A pulp bleaching plant according to claim 6, characterized in that: prevent stifled device (710) including with fluid-discharge tube (707) right side fixed connection's soft post (7101), small-size soft post (7102) of fixedly connected with on soft post (7101) circumference, soft post (7101) fixedly connected with two circles of small-size soft post (7102), evenly distributed has on fluid-discharge tube (707) right flank circumference prevents stifled device (710), contained angle obtuse angle one side between soft post (7101) and small-size soft post (7102) is towards fluid-discharge tube (707) right side.

8. A pulp bleaching plant according to claim 1, characterized in that: clean mechanism (12) include with wash case (9) bottom fixed connection's second driving motor (121), second driving motor (121) output is connected with axis of rotation (122), axis of rotation (122) pass wash case (9) bottom and rotate and be connected, axis of rotation (122) top fixedly connected with clean pole (123), axis of rotation (122) middle part is connected with backup pad (123), be provided with filter (124) in backup pad (123) both sides fixedly connected with spout (11), filter (124) and spout (11) sliding connection, the round hole has evenly been seted up in filter (124), evenly distributed around filter (124) below round hole has anti-blocking device (710), contained angle acute angle one side between soft post (7101) and small-size soft post (7102) is towards filter (124) below.

Technical Field

The invention relates to the technical field of papermaking, in particular to a paper pulp bleaching device.

Background

The paper pulp is a fibrous substance prepared by using plant fibers as raw materials through different processing methods. Mechanical pulp, chemical pulp and chemimechanical pulp can be classified according to the processing method; the fiber raw materials can also be divided into wood pulp, straw pulp, hemp pulp, reed pulp, cane pulp, bamboo pulp, rag pulp and the like according to the used fiber raw materials. And can be divided into refined pulp, bleached pulp, unbleached pulp, high-yield pulp, semi-chemical pulp and the like according to different purities. Are commonly used in the manufacture of paper and paperboard. Refined pulp is often used as a raw material for producing cellulose derivatives such as cellulose esters and cellulose ethers, in addition to specialty paper. Also used in the fields of artificial fiber, plastic, paint, film, gunpowder and the like.

The bleaching of the paper pulp is an essential step in the paper pulp processing process, and the paper pulp needs to be washed by clean water immediately after bleaching to prevent the paper pulp from being excessively reacted with bleaching liquid to break the paper pulp fibers, however, the bleaching efficiency of the traditional paper pulp bleaching device is low, and the pulp caking phenomenon appears in the resin mucilage precipitated from the paper pulp in the bleaching process, thereby affecting the bleaching quality of the paper pulp.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a paper pulp bleaching device, which solves the problems of caking phenomenon in the paper pulp bleaching process and low paper pulp bleaching efficiency.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: a paper pulp bleaching device comprises a casing, a feeding inclined plate, a feeding round pipe, a motor support, a scattering mechanism, a water inlet pipe, a drainage mechanism, an open-close plate, a cleaning box, a drainage pipe, a sliding chute, a cleaning mechanism and a base support, wherein the top end of the casing is provided with a feeding round pipe penetrating pipe casing top end fixedly connected with the casing, the top end of the feeding round pipe is fixedly connected with the motor support, the middle part of the feeding round pipe is provided with the feeding inclined plate to penetrate through and fixedly connected with the feeding round pipe, the top end inside the casing is fixedly connected with the scattering mechanism, the scattering mechanism separates and scatters bonded paper pulp to accelerate the bleaching efficiency of the paper pulp, the left side and the right side of the casing are provided with water inlet pipes to penetrate through, clear water or diluent is injected into the casing through the water inlet pipes to prevent the paper pulp from being too sticky in the casing and reduce the bleaching efficiency, the, through the separation of paper pulp and the bleaching agent of flowing back mechanism in with the casing and with partly bleaching agent discharge, the cleaning efficiency after the paper pulp bleaching is accelerated, casing bottom fixedly connected with washs the case, it is provided with the open-close board to wash incasement portion top, prevent through opening or closing the open-close board that the paper pulp after not bleaching from entering into washing incasement and making the bleaching enters into and washs the incasement, open-close board and washing incasement portion top sliding connection, it is provided with the spout to wash incasement portion near the bottom both sides, it has wiper mechanism to pass and with washing case fixed connection to wash incasement portion bottom, wash the paper pulp after the bleaching through wiper mechanism, wiper mechanism both sides and spout sliding connection, it has the base support to wash incasement portion bottom fixed connection, it has the drain pipe to wash case right side fixedly.

Preferably, the front of the cleaning box is provided with an opening, the top end of the opening is fixedly connected with a hinge, a sealing plate is fixedly connected below the hinge, the cleaned paper pulp is taken out by opening the sealing plate, a stop dog is fixedly connected to one side of the opening-closing plate and penetrates through the cleaning box to be movably connected with the cleaning box, and the opening-closing plate is controlled to open and close by moving the stop dog leftwards and rightwards.

Preferably, the scattering mechanism comprises a water inlet tank fixedly connected with the top end of the casing, a guide pipe is fixedly connected with the right side of the water inlet tank, a water pump is fixedly connected with the right side of the guide pipe, the bottom end of the water pump is fixedly connected with the top end of the casing, an annular circular pipe is arranged in the middle of the bottom end in the water inlet tank, the annular circular pipe penetrates through the top end of the casing and the bottom end of the water inlet tank and is fixedly connected with the water inlet tank and the casing, a conical cylinder is fixedly connected below the annular circular pipe, a scattering device is arranged at the bottom end in the conical cylinder, a rotating shaft penetrates through the axis of the scattering device, the top end of the rotating shaft penetrates through a feeding circular pipe and is fixedly connected with the output end of a first driving motor, the first driving motor is fixedly connected with a motor support, the scattering mechanism is driven to rotate by the first driving motor, the bleaching agent flows down along the inner wall of the annular circular pipe through the water inlet tank and is mixed with paper pulp on the conical cylinder, the paper pulp and the bleaching agent fall into the casing together due to the action of gravity, the paper pulp and the bleaching agent are mixed more uniformly, a transmission speed reducer is arranged below the annular circular pipe and is fixedly connected with the bottom end of the rotating shaft, a stirring device is fixedly connected below the transmission speed reducer, the middle part of the stirring device is rotatably connected with a support, the two sides of the support are fixedly connected with the inner wall of the casing, the paper pulp in bleaching is continuously stirred through the stirring device, the paper pulp is prevented from caking during the bleaching process and the bleaching efficiency is reduced.

Preferably, the scattering device comprises a disc arranged in the tapered cylinder, a first screw is arranged above the disc, a second screw is arranged above the first screw, a third screw is arranged in the feeding circular pipe above the second screw and close to the bottom end, the first screw and the second screw are fixedly connected with each other through a rotating shaft, the rotating shaft penetrates through the third screw and is fixedly connected with the rotating shaft, the rotating shaft penetrates through the disc and the disc, paper pulp entering the feeding circular pipe is scattered primarily through the third screw, the first screw and the second screw are moved to scatter secondarily, the scattered paper pulp is thrown to the inner wall of the tapered cylinder, the diameter of the second screw is smaller than that of the third screw, and the scattered paper pulp is prevented from entering the casing.

Preferably, first screw, second screw oar are the arc type, and the arc type internal angle is greater than 90 degrees external angles and is less than 130 degrees, and one side perpendicular to pivot of arc type, first screw, second screw internal angle are in same direction of rotation, prevent that the paper pulp that does not break up from entering into the casing in, influence bleaching efficiency, and cyclic annular pipe is equipped with the opening with toper drum junction, and cyclic annular pipe is equipped with the opening with the case junction of intaking, makes bleaching liquid enter into in the casing along toper drum inner wall.

Preferably, the drainage mechanism comprises air outlet plates fixedly connected with two sides of the inner wall of the casing close to the bottom end, round holes are uniformly formed in the air outlet plates, uniform bubbles are formed in the casing, one side of the air outlet plates, which is back to the inside of the casing, is connected with an air inlet pipe through the round holes, one side of the air inlet pipe, which is far away from the air outlet plates, is connected with a round pipe, a one-way air valve is fixedly connected above the round pipe, a hose is fixedly connected above the one-way air valve, bleaching liquid in the casing is prevented from flowing backwards into the air pump to damage the device, the other end of the hose is fixedly connected with the output end of the air pump, a drainage pipe is arranged below the air inlet plates on the left side in the casing, the right side of the drainage pipe penetrates through the inner wall of the casing and is fixedly connected with, the fluid-discharge tube right side is connected with prevents stifled device, prevent that paper pulp from entering into the header tank along with the bleaching agent in, header tank bottom and base support fixed connection, when bleaching soon finishes, close first driving motor, start the air pump and inject the air into to the casing through the round hole of seting up on the play gas board, thereby produce a large amount of bubbles in paper pulp bleaching liquid mixed liquid, can separate out the resin mucus because of paper pulp in the bleaching process, the bubble elasticity that forms is great is difficult for ordinary bubble breakage, and the bubble can drive the bleaching agent in the casing upwards flow after forming at the in-process of upward movement, the bleaching agent flows and drives paper pulp upward movement, and the resin mucus that a large amount of bubbles formed in the casing owing to paper pulp separation out makes the bubble cohesiveness strengthen, elasticity is great for ordinary bubble, thereby a large amount of bubbles can drive the paper pulp upward movement of casing bottom through the bleaching agent in the casing, a large amount of bubbles bond together and can play the effect of similar wall, prevent that the paper pulp piece from sinking to casing inner wall bottom, then cancel the jam to the fluid-discharge tube through rotating the cylinder, make the partial bleaching agent in the casing pass through the fluid-discharge tube and enter into the header tank to accelerate the cleaning efficiency to bleaching back paper pulp.

Preferably, the anti-blocking device comprises a soft column fixedly connected with the right side of the liquid discharge pipe, a small soft column is fixedly connected on the circumference of the soft column, two circles of small soft columns are fixedly connected on the soft column, anti-blocking devices are uniformly distributed on the circumference of the right side surface of the liquid discharge pipe, one side of an included angle between the soft column and the small soft column, which is obtuse, faces the right side of the liquid discharge pipe, when bleaching liquor enters the liquid discharge pipe, the small soft column on the soft column faces the liquid discharge pipe along with the flowing of bleaching agent, because the anti-blocking devices are uniformly distributed on the circumference of the side surface of the liquid discharge pipe, therefore, the small-sized soft column can form a net shape on the side surface of the secondary drainage pipe in a crossed way to prevent the pulp from entering the drainage pipe, when the open-close board pulp enters the cleaning box after bleaching, clear water is injected from the water inlet pipe to clean the pulp in the cleaning box, because the obtuse angle side of the included angle between the soft column and the small soft column faces the right side of the liquid discharge pipe, paper pulp on the anti-blocking device can enter the cleaning box along with the clean water flow.

Preferably, the cleaning mechanism comprises a second driving motor fixedly connected with the bottom end of the cleaning box, the output end of the second driving motor is connected with a rotating shaft, the rotating shaft penetrates through the bottom end of the cleaning box to be rotatably connected with the bottom end of the cleaning box, the top end of the rotating shaft is fixedly connected with a cleaning rod, the middle part of the rotating shaft is connected with a supporting plate, two sides of the supporting plate are fixedly connected with sliding chutes, filter plates are slidably connected with the sliding chutes, round holes are uniformly formed in the filter plates, anti-blocking devices are uniformly distributed around the round holes below the filter plates, one side of an included angle acute angle between the soft column and the small soft column faces the lower part of the filter plates, the round holes are uniformly formed in the filter plates, when liquid in the cleaning box is discharged through a drain pipe, the anti-blocking devices uniformly distributed around the round holes below the filter plates face the lower part of the filter plates, so that the small soft columns can form And the water pipe flows out.

(III) advantageous effects

(1) According to the invention, the paper pulp is primarily broken up by the rotation of the third screw propeller, the paper pulp is secondarily broken up by the rotation of the first screw propeller and the second screw propeller and the L-shaped arrangement of the fan blades of the screw propellers, meanwhile, the broken-up paper pulp is thrown onto the inner wall of the conical cylinder by centrifugal force generated by the rotation, and the paper pulp on the inner wall of the conical cylinder is washed and mixed by the annular circular tube, the conical cylinder and the water inlet tank, and the paper pulp and bleaching liquid are continuously stirred by the stirring device, so that the bleaching liquid and the paper pulp are mixed more uniformly, the paper pulp is prevented from caking in the bleaching process, and the bleaching efficiency is improved.

(2) According to the invention, air is flushed into the casing through the circular openings formed in the air pump and the air inlet plate in the liquid discharge mechanism, so that bubbles are generated in a mixed liquid of paper pulp and bleaching liquid, resin mucus is separated out from the paper pulp in the bleaching process, the generated bubbles are not easy to break and have certain cohesiveness, the continuously generated bubbles drive the bleaching liquid to flow, so that paper pulp scraps at the bottom end inside the casing are not easy to deposit at the bottom end of the inner wall of the casing, and meanwhile, partial bleaching liquid is discharged from the casing by matching with the liquid discharge pipe, so that the cleaning time required by the bleached paper pulp is reduced, and the paper pulp bleaching efficiency is accelerated.

(3) According to the invention, the anti-blocking device is arranged to intercept paper pulp through the side with the acute included angle between the soft column and the small soft column and the influence of liquid flow on the soft column and the small soft column, and when the anti-blocking device is cleaned, the anti-blocking device only needs to be washed towards the side with the obtuse included angle, so that the pipeline in the device is prevented from being blocked, the normal operation of the device is prevented from being influenced, and the quality of bleached paper pulp is influenced due to long-term residual paper pulp in the device.

(4) According to the invention, the filter plate is arranged, the anti-blocking device arranged below the filter plate is used for isolating the paper pulp in the cleaning box from the drain pipe, and the clear water is injected into the filter plate to clean the paper pulp in the cleaning box for multiple times in cooperation with the water inlet pipe, so that the paper pulp is prevented from being wasted and blocking the drain pipe when the liquid in the cleaning box is discharged out of the cleaning box along with the liquid, and the quality of the bleached paper pulp is improved more thoroughly when the paper pulp is cleaned.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an internal structural view of the present invention;

FIG. 3 is a cross-sectional view of the present invention;

FIG. 4 is a detail view of the seal plate of the present invention;

FIG. 5 is a detail view of the breaking mechanism of the present invention;

FIG. 6 is a cross-sectional view of the cleaning mechanism of the present invention;

fig. 7 is a detailed view of the anti-blocking device of the present invention.

Wherein, the machine shell 1, the feeding inclined plate 2, the feeding round tube 3, the motor bracket 4, the scattering mechanism 5, the water inlet tank 501, the conduit 502, the water pump 503, the annular round tube 504, the conical cylinder 505, the scattering device 506, the disc 5061, the first screw 5062, the second screw 5063, the third screw 5064, the rotating shaft 507, the first driving motor 508, the transmission speed reducer 509, the stirring device 510, the bracket 511, the water inlet tube 6, the liquid discharge mechanism 7, the air inlet plate 701 and the air inlet tube 702, the device comprises a circular tube 703, a one-way air valve 704, a hose 705, an air pump 706, a drain pipe 707, a drain hose 708, a cylinder 709, an anti-blocking device 710, a liquid collecting tank 711, a soft column 7101, a small soft column 7102, an opening plate 8, a cleaning tank 9, a hinge 901, a sealing plate 902, a stopper 903, a drain pipe 10, a chute 11, a cleaning mechanism 12, a second driving motor 121, a rotating shaft 122, a cleaning rod 123, a filter plate 124 and a base support 13.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-7, an embodiment of the present invention provides a paper pulp bleaching apparatus, which includes a casing 1, a feeding inclined plate 2, a feeding circular tube 3, a motor bracket 4, a scattering mechanism 5, a water inlet tube 6, a drainage mechanism 7, a plywood 8, a cleaning box 9, a drain tube 10, a chute 11, a cleaning mechanism 12, and a base bracket 13, wherein the top end of the casing 1 is provided with the feeding circular tube 3, the top end of the casing 1 is fixedly connected with the casing 1, the top end of the feeding circular tube 3 is fixedly connected with the motor bracket 4, the middle part of the feeding circular tube 3 is provided with the feeding inclined plate 2 which passes through and is fixedly connected with the feeding circular tube 3, the top end inside the casing 1 is fixedly connected with the scattering mechanism 5, the scattering mechanism 5 separates and scatters the bonded paper pulp, the bleaching efficiency of the paper pulp is accelerated, the left and right sides of the casing 1 are provided with the water inlet tubes 6, clean water, and the bleached paper pulp in the cleaning box 9 is cleaned, the water inlet pipe 6 is fixedly connected with the machine shell 1, a liquid discharge mechanism 7 penetrates through and is fixedly connected with the machine shell 1 near the bottom end in the machine shell 1, the bottom end of the machine shell 1 is fixedly connected with the cleaning box 9, the top end in the cleaning box 9 is provided with an opening plate 8, the unbleached paper pulp is prevented from entering the cleaning box 9 and from entering the cleaning box 9 by opening or closing the opening plate 8, the opening plate 8 is in sliding connection with the top end of the cleaning box 9, sliding grooves 11 are arranged near the two sides of the bottom end in the cleaning box 9, a cleaning mechanism 12 penetrates through and is fixedly connected with the cleaning box 9 at the bottom end in the cleaning box 9, the bleached paper pulp is cleaned by the cleaning mechanism 12, the two sides of the cleaning mechanism are in sliding connection with the sliding grooves 11, the bottom end of the cleaning box 9 is fixedly connected with, wash case 9 openly and be equipped with the opening, opening top fixedly connected with hinge 901, hinge 901 below fixedly connected with closing plate 902, through opening closing plate 902 and take out the paper pulp after wasing, 8 one side fixedly connected with dogs 903 of open-close plate, the dog passes and wash case 9 swing joint, moves about dog 903 control open-close plate 8 and opens and shuts.

The scattering mechanism 5 comprises a water inlet tank 501 fixedly connected with the top end of the machine shell 1, a conduit 502 is fixedly connected with the right side of the water inlet tank 501, a water pump 503 is fixedly connected with the right side of the conduit, the bottom end of the water pump 503 is fixedly connected with the top end of the machine shell 1, an annular circular pipe 504 is arranged in the middle of the bottom end inside the water inlet tank 501, the annular circular pipe 504 penetrates through the top end of the machine shell 1 and is fixedly connected with the bottom end of the water inlet tank 501 and the machine shell 1, a conical cylinder 505 is fixedly connected below the annular circular pipe 504, a scattering device 506 is arranged at the bottom end inside the conical cylinder 505, a rotating shaft 507 penetrates through the axis of the scattering device 506, the top end of the rotating shaft 507 penetrates through a circular feeding pipe 3 and is fixedly connected with the output end of a first driving motor 508, the first driving motor 508 is fixedly connected with the motor support 4, the scattering mechanism 5 rotates to scatter the paper pulp and throw the scattered paper pulp onto the conical cylinder 505, the bleaching agent flows down along the inner wall of the conical cylinder 505 through the water inlet tank and is mixed with the paper pulp on the conical cylinder 505, the paper pulp and the bleaching agent fall into the machine shell 1 together due to the action of gravity, so that the paper pulp and the bleaching agent are mixed more uniformly, the bleaching efficiency is improved, the transmission speed reducing device 509 is arranged below the annular circular pipe 504, the transmission speed reducing device 509 is fixedly connected with the bottom end of the rotating shaft 507, the stirring device 510 is fixedly connected below the transmission speed reducing device 509, the middle part of the stirring device 510 is rotatably connected with a support 511, two sides of the support 511 are fixedly connected with the inner wall of the machine shell 1, the paper pulp in bleaching is continuously stirred through the stirring device 510, the paper pulp continuously moves in the bleaching process, the paper pulp is prevented from caking, the bleaching efficiency is reduced, the scattering, a first propeller 5062 is arranged above the disc 5061, a second propeller 5063 is arranged above the first propeller 5063, a third propeller 5064 is arranged near the bottom end in the feeding round tube 3 above the second propeller 5063, the first propeller 5062, the second propeller 5063 and a rotating shaft 507 are arranged on the central axis of the third propeller 5064 and penetrate through the rotating shaft 507 and are fixedly connected with the rotating shaft 507, the rotating shaft 507 penetrates through the disc 5061 and is fixedly connected with the disc 5061, the first propeller 5062 and the second propeller 5063 are arc-shaped, the inner angle of the arc-shaped propeller 5063 is larger than 90 degrees and smaller than 130 degrees, one side of the arc-shaped propeller is vertical to the rotating shaft, the first propeller 5062 and the inner angle of the second propeller 5063 are in the same rotating direction, so that the pulp which is not scattered is prevented from entering the machine shell 1, the bleaching efficiency is influenced, an opening is arranged at the connection of the round tube 504 and the conical round tube 505, an opening is arranged at the connection of the round tube 504 and, the diameter of the second screw 5063 is smaller than that of the third screw 5064, the pulp entering the feeding circular tube 3 is primarily scattered through the third screw 5064, the first screw 5062 and the second screw 5063 are moved to scatter the scattered pulp for the second time, and the scattered pulp is thrown onto the inner wall of the conical cylinder 505, and the diameter of the second screw 5063 is smaller than that of the third screw 5064, so that the scattered pulp is prevented from entering the machine shell 1, and the bleaching efficiency of the pulp is not influenced.

The liquid discharge mechanism 7 comprises a gas outlet plate 701 fixedly connected with two sides of the inner wall of the machine shell 1 near the bottom end, round holes are uniformly arranged on the gas outlet plate 701, uniform bubbles are formed in the machine shell 1, a gas inlet pipe 702 is connected with one side of the gas outlet plate 701 back to the machine shell 1 through the round holes, a round pipe 703 is connected with one side of the gas inlet pipe 702 far away from the gas outlet plate 701, a one-way gas valve 704 is fixedly connected with the upper part of the round pipe 703, a hose 705 is fixedly connected with the upper part of the one-way gas valve 704 to prevent bleaching liquid in the machine shell 1 from flowing back into the gas pump 706 to damage the device, the other end of the hose 705 is fixedly connected with the output end of the gas pump 706, a liquid discharge pipe 707 is arranged below the gas inlet plate 701 on the left side in the machine shell 1, the right side of the liquid discharge pipe 707, a column 709 is connected in the left side of the drain pipe 707, the column 709 is rotatably connected with the drain pipe 707, an anti-blocking device 710 is connected on the right side of the drain pipe 707, the anti-blocking device 710 comprises a soft column 7101 fixedly connected with the right side of the drain pipe 707, a small soft column 7102 is fixedly connected on the circumference of the soft column 7101, two circles of small soft columns 7102 are fixedly connected on the soft column 7101, the anti-blocking devices 710 are uniformly distributed on the circumference of the right side surface of the drain pipe 707, the obtuse angle side between the soft column 7101 and the small soft column 7102 faces the right side of the drain pipe 707, paper pulp is prevented from entering the liquid collecting tank 711 along with bleaching agent, when bleaching liquid enters the drain pipe 707, the small soft columns 7102 on the soft column 7101 face the drain pipe 707 along with the flow of bleaching agent, and the anti-blocking devices 710 are uniformly distributed on the circumference of the side surface of the drain pipe 707, so that the small soft columns 7102 cross at the, after bleaching, when paper pulp in the opening plate 8 enters the cleaning box 9 after being opened, clean water is injected into the water inlet pipe 6 to clean the paper pulp in the cleaning box 9, because the obtuse angle side of an included angle between the soft column 7101 and the small soft column 7102 faces to the right side of the liquid discharge pipe 707, the paper pulp on the anti-blocking device 710 can enter the cleaning box 9 along with the clean water flow, the bottom end of the liquid collection box 711 is fixedly connected with the base support 13, when bleaching is finished, the first driving motor 508 is closed, the air pump 706 is started to inject air into the machine shell 1 through the round hole formed in the air outlet plate 701, so that a large amount of air bubbles are generated in the mixed liquid of the paper pulp bleaching liquid, resin mucilage can be separated out in the bleaching process of the paper pulp, the formed air bubbles have larger elasticity and are not easy to break relative to common air bubbles, and the air bubbles can drive the bleaching agent in the machine shell to flow upwards in the upward, and a large amount of bubbles that form in the casing make the bubble cohesiveness grow because the resin mucus that paper pulp precipitates, elasticity is great for ordinary bubble, thereby a large amount of bubbles can pass through the paper pulp upward movement of bleaching agent drive casing 1 bottom in the casing 1, a large amount of bubbles bond and can play the effect of similar wall together, prevent that the paper pulp piece from sinking to casing 1 inner wall bottom, then cancel the jam to fluid-discharge tube 707 through rotating cylinder 709, make partial bleaching agent in the casing 1 enter into the header tank 711 through fluid-discharge tube 707, thereby accelerate the cleaning efficiency to the bleached paper pulp.

The cleaning mechanism 12 comprises a second driving motor 121 fixedly connected with the bottom end of the cleaning box 9, the output end of the second driving motor 121 is connected with a rotating shaft 122, the rotating shaft 122 passes through the bottom end of the cleaning box 9 and is rotatably connected with the bottom end of the cleaning box 9, the top end of the rotating shaft 122 is fixedly connected with a cleaning rod 123, the middle part of the rotating shaft 122 is connected with a supporting plate 123, two sides of the supporting plate 123 are fixedly connected with chutes 11, and sliding grooves 11 are internally provided with filter plates 124, the filter plates 124 are in sliding connection with the chutes 11 and are uniformly provided with round holes, anti-blocking devices 710 are uniformly distributed around the round holes below the filter plates 124, the acute angle side between the soft column 7071 and the small soft column 7072 faces the lower part of the filter plates 124, because the round holes are uniformly provided on the filter plates 124, when the liquid in the cleaning box 9 is discharged through the drain pipe 10, the anti-blocking devices 710 uniformly distributed around the round, the small flexible columns 7102 form a cross-net around the lower round holes of the filtering plates 124 to prevent the pulp from flowing out along with the liquid through the drainage pipe 10.

When the bleaching machine is used, the first driving motor 508 is started to pour pulp into the feeding circular tube 3 through the feeding inclined plate 2, the pulp is firstly scattered through the third screw 5064, the pulp which is scattered firstly falls down onto the second screw 5063 and the first screw 5064 to be scattered again, the scattered pulp is thrown onto the inner wall of the conical circular tube 505 through centrifugal force generated by the first screw 5063 and the second screw 5064, simultaneously bleaching liquid is pumped into the water inlet tank 501 through the water suction pump 503, an opening is arranged at the joint of the annular circular tube 504 and the water inlet tank 501, an opening is arranged at the joint of the annular circular tube 504 and the conical circular tube 505, the bleaching liquid entering the water inlet tank 501 flows into the machine shell along the inner wall of the conical circular tube 505, the pulp scattered by the conical circular tube 505 is flushed into the machine shell 1 along with the bleaching liquid in the downward flowing process of the conical bleaching liquid conical circular tube 505, so that the scattered pulp and the bleaching liquid are fully mixed, when the paper pulp is thick, a dilution liquid is injected into the machine shell 1 through the water inlet pipe 6 to reduce the viscosity of the paper pulp, the transmission speed reducing device 509 is arranged below the disc 5061, so that the rotating speed of the stirring device 510 is slow relative to the scattering device 506, the paper pulp and the bleaching agent in the machine shell 1 are slowly stirred, the phenomenon of paper pulp caking in the bleaching process is prevented, when the bleaching process is finished, the first driving motor 508 is closed, the air pump 706 is started to inject air into the machine shell 1 through the air inlet plate 701, bubbles are generated in a mixed liquid of the paper pulp and the bleaching agent, resin viscose is separated out in the bleaching process of the paper pulp, the generated bubbles are higher in viscosity relative to common bubbles and are not easy to break, a large number of bubbles can drive the bleaching agent in the machine shell 1 to flow upwards, and meanwhile, paper pulp scraps at the bottom end of the inner wall of the machine shell 1 move upwards, a large amount of bubbles are bonded together, and the bubbles are continuously generated, so that paper pulp and partial paper pulp scraps are not easy to deposit at the bottom end of the inner wall of the machine shell 1, then bleaching agent in the machine shell 1 flows into the liquid collecting tank 711 through the liquid discharging pipe 707 by rotating the cylinder 709, the anti-blocking device 710 is arranged on the circumference of the side surface of the liquid discharging pipe 707, when liquid enters the liquid discharging pipe 707, one side of the small soft column 7102, which is away from the soft column 7101 due to liquid flowing, points to the liquid inlet of the liquid discharging pipe 707, so that the small soft column 7102 is crossed into a net shape to prevent the paper pulp from entering the liquid discharging pipe 707, after the part of bleaching agent in the machine shell 1 is discharged, the paper pulp bleached by the opening plate 8 is opened to enter the cleaning tank 9, clean water is injected into the machine shell 1 through the water inlet pipe 6 to flush the residual paper pulp on the inner wall of the machine shell and the paper pulp on the blocking device, and simultaneously the second driving, open the drain pipe after wasing a period, will wash the liquid discharge of incasement, because the round hole has been seted up on the filter 124, evenly be equipped with around the round hole of filter 124 below and prevent stifled device, thereby prevent paper pulp along with liquid discharge, cause the jam to drain pipe 10 through long-time accumulation, then close drain pipe 10 and continue to wash the paper pulp after bleaching through inlet tube 6 to injecting the clear water in wasing case 9, discharge after the washing finishes and wash case 9 and open closing plate 902 and take out filter 124 and collect the paper pulp on filter 124, thereby solved the paper pulp bleaching in-process paper pulp caking and lead to the bleached paper pulp quality low and the problem of bleaching inefficiency.