CN212477260U

CN212477260U - Confidential document destroying equipment

Info

Publication number: CN212477260U
Application number: CN202021226642.0U
Authority: CN
Inventors: 李祥凌; 王陀; 郑少斌; 黄晓强; 张永龙; 陈学伟; 叶世喜
Original assignee: Fujian Light Industry Machinery & Equipment Co ltd
Current assignee: Fujian Light Industry Machinery & Equipment Co ltd
Priority date: 2020-06-28
Filing date: 2020-06-28
Publication date: 2021-02-05
Anticipated expiration: 2030-06-28

Abstract

The utility model discloses a confidential document destroying device, a hydrapulper is connected with a pulp storage tank and is used for defibering paper into pulp fibers; the pulp storage tank is connected with the high-concentration slag separator through a pulp pump, and the pulp pump is used for conveying the pulp in the pulp storage tank into the high-concentration slag separator; the high-concentration slag remover is connected with a double-net pulp extruder which is used for improving the concentration of paper pulp. According to the technical scheme, the destruction work of the confidential documents is completed through the combined action of the hydrapulper, the pulp storage tank, the high-concentration slag remover, the double-net pulp extruder and the pulp pump. During operation, the document to be destroyed is first defibered into paper pulp fibers by a hydrapulper, and then the concentration of the paper pulp is improved by a double-net pulp extruder through the steps of extrusion, water filtration and the like, so that the paper pulp is made into pulp blocks. According to the scheme, the confidential documents are thoroughly destroyed through the hydraulic pulper, and then the destroyed confidential documents are made into pulp blocks through the double-net pulp extruder, so that the problems of more manpower, long consumed time, high investment cost and poor transportation risk controllability are solved.

Description

Confidential document destroying equipment

Technical Field

The utility model relates to an equipment field is destroyed to the file, especially relates to a confidential document destroys equipment.

Background

The destruction of the confidential documents generally adopts the following methods: 1. the waste document is cut into a strip or a sheet using a paper cutter. 2. And packaging and bundling the crushed files by using a hydraulic packaging machine. 3. The packing piece is delivered to a paper pulp factory which takes the waste paper as the raw material by a special person. 4. People are sent to specially monitor bundled waste documents and put the waste documents into a disintegrating device of a pulp mill. The shredded confidential paper media still display relevant confidential information, and according to confidential regulations, the shredded confidential paper media still need to be managed according to the original before being sent to a paper mill for pulping to realize primary destruction, so that a confidential event is ensured not to occur. Therefore, a confidential warehouse is required to be specially arranged in the destruction workshop, and corresponding confidential force such as people, properties and the like is put into the warehouse to strengthen management. Of course, there are also devices that use hydraulic destruction, such as: the shredder of application No. 201721412235.7, which can destroy documents thoroughly, and the hydraulic shredder of application No. 201910123080.2, which are not suitable for use in an environment where a large amount of documents need to be destroyed, have low document processing efficiency and consume a lot of resources. Meanwhile, the treatment method has the defects that the paper shredder has large dust, has sewage discharge and is environment-friendly and not suitable for the current requirements. The method has the advantages of multiple manpower, long consumed time, high investment cost, large maintenance requirement, multiple whole process supervision links and poor risk controllability.

SUMMERY OF THE UTILITY MODEL

Therefore, a confidential document destroying device needs to be provided, and efficient and low-cost destruction of confidential documents is achieved.

To achieve the above object, the inventors provide a security document destruction apparatus comprising: a hydrapulper, a pulp storage tank, a high-concentration slag separator, a double-net pulp extruder and a pulp pump;

the hydrapulper is connected with the pulp storage tank and is used for defibering paper into pulp fibers; the pulp storage tank is connected with the high-concentration slag remover through a pulp pump, and the pulp pump is used for conveying the pulp in the pulp storage tank into the high-concentration slag remover; the high-concentration slag separator is connected with the double-net pulp extruder, and the double-net pulp extruder is used for improving the pulp concentration.

Further, still include: an impurity separator, a cylindrical sieve and a recovery tank;

the hydropulper is connected with the impurity separator and the recovery tank; the impurity separator and the cylindrical sieve are used for separating impurities in water; the impurity separator and the cylinder screen are respectively connected with the recovery tank, and the recovery tank is connected with the high-concentration slag separator, the impurity separator, the cylinder screen and the double-net pulp extruder.

Further, the recovery tank includes: the device comprises a recovery pulp tank and a white water tank, wherein the impurity separator and a cylindrical screen are respectively connected with the recovery pulp tank, the recovery pulp tank is connected with the white water tank, and the white water tank is connected with the hydrapulper, the high-concentration slag remover, the impurity separator, the cylindrical screen and the double-net pulp extruder.

Further, still include: the discharging end of the flat leather conveyor is arranged above the hydrapulper, two sides of the other end of the flat leather conveyor are provided with two side working tables, and the flat leather conveyor is used for conveying waste paper to be destroyed.

Further, still include: a crushing screw and an inclined conveying screw; the feeding end of the crushing screw is positioned below the discharging end of the double-net pulp extruder, and the discharging end of the crushing screw is connected with the inclined conveying screw.

Further, still include: a full-automatic brush filter and a spray water tank; the spraying water tank is connected with the double-net pulp extruder, and the full-automatic brush type filter is connected with the spraying water tank.

Different from the prior art, the technical scheme finishes the destruction work of the classified documents through the combined action of the hydrapulper, the pulp storage tank, the high-concentration slag separator, the double-net pulp extruder and the pulp pump. During operation, the document to be destroyed is firstly defibered into paper pulp fibers by a hydrapulper, and then the concentration of the paper pulp is improved by the double-net squeezer through the steps of extrusion, water filtration and the like, so that the paper pulp is made into pulp blocks. According to the scheme, the confidential documents are thoroughly destroyed through the hydraulic pulper, and then the destroyed confidential documents are made into pulp blocks through the double-net pulp extruder, so that the problems of large dust, more manpower, long time consumption, high investment cost and poor transportation risk controllability are solved.

Drawings

FIG. 1 is a flow chart of the security document destruction apparatus;

FIG. 2 is a half of the structure of the security document destruction apparatus;

fig. 3 is another half of the structure of the security document destruction device;

FIG. 4 is a block diagram of the twin-wire press;

fig. 5 is a structural view of the crushing screw and the inclined conveying screw.

Description of reference numerals:

1. a hydropulper; 2. a slurry storage tank; 3. a high-concentration slag remover; 4. a twin-wire press; 5. a pulp pump; 6. a high-level tank; 7. an impurity separator; 8. a cylindrical screen; 9. a flat skin conveyor; 10. crushing the screw; 11. an inclined conveying screw; 12. a full-automatic brush filter; 13. a spray water tank;

61. a first cavity; 62. a second cavity; 241. a slurry recovery tank; 242. a white water tank.

Detailed Description

To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.

Referring to fig. 1 to 5, the present embodiment provides a device for destroying a security document, including: the device comprises a hydrapulper 1, a pulp storage tank 2, a high-concentration slag separator 3, a double-net pulp extruder 4 and a pulp pump 5; the hydrapulper 1 is connected with the pulp storage tank 2, and the hydrapulper 1 is used for defibering paper into pulp fibers; the pulp storage tank 2 is connected with the high-concentration slag remover 3 through a pulp pump 5, and the pulp pump 5 is used for conveying the pulp in the pulp storage tank 2 into the high-concentration slag remover 3; the high consistency scummer 3 is connected to the twin-wire press 4, see fig. 3, the twin-wire press 4 being adapted to increase the consistency of the pulp. In this embodiment, the hydropulper 1 is used to defiber the paper security document into pulp fibers, the defibered pulp concentration of the hydropulper 1 is about 4-5%, the defibered pulp passes through the pulp storage tank 2 and the high-concentration slag separator 3 to remove impurities from the pulp, and the pulp from which the impurities are removed passes through the special equipment twin-wire press 4, so that the pulp with the concentration of about 4% is pressed into pulp lumps with the concentration of 40%, and is transported to a nearby paper mill as a paper making raw material. Specifically, the high-concentration slag separator 3 has the working principle that: the high-concentration slag separator 3 separates impurities by utilizing the difference of specific gravity between fibers and the impurities. The slurry enters the slag separator at a certain pressure from a tangent line of the feed inlet and then rotates at a high speed, and heavy impurities are thrown to the wall of the slag separator and gradually run towards the cone bottom under the action of gravity to enter the slag settling tank. The fiber gradually moves to a central low-pressure area due to smaller centrifugal force, and then rises in a vortex mode after reaching the bottom and finally is discharged from a good pulp port. The cone of the high-concentration slag separator 3 has a certain taper, and is longer, and the rotating radius of the pulp in the cone is gradually reduced, so that the speed reduction of pulp flow in the rotating process is avoided, the centrifugal force is enhanced, and the purification efficiency of paper materials is improved. The bottom balance water pressure is slightly larger than the pressure of the slurry, so that the fiber cannot enter the slag settling tank, and only heavy impurities such as sand grains, metal particles, rubber blocks, plastics and the like sink into the tank, thereby reducing fiber loss. According to the technical scheme, the destruction work of the classified documents is completed through the combined action of the hydrapulper 1, the pulp storage tank 2, the high-concentration slag separator 3, the double-net pulp extruder 4 and the pulp pump 5. During operation, the document to be destroyed is firstly defibered into pulp fibers by the hydrapulper 1, and then the pulp concentration is improved by the twin-wire pulp extruder 4 through steps of extrusion, water filtration and the like, so that the pulp is made into pulp blocks. In certain embodiments, further comprising: a full-automatic brush filter 12 and a spray water tank 13; the spraying water tank 13 is connected with the double-net pulp extruder 4 through a pulp pump 5, and the full-automatic brush type filter 12 is connected with the spraying water tank 13. According to the scheme, the confidential documents are thoroughly destroyed through the hydraulic pulper 1, and then the destroyed confidential documents are made into pulp blocks through the double-net pulp extruder 4, so that the problems of large dust, more manpower, long time consumption, high investment cost, high maintenance requirement, more supervision links in the whole process and poor transportation risk controllability are solved.

In order to further improve the quality of papermaking raw materials, an electric hoist and an electric single-beam bridge crane are further arranged at the top end of the confidential document destroying equipment, and the electric hoist and the electric single-beam bridge crane are used for carrying the equipment or carrying confidential documents, pulp blocks and the like.

Referring to fig. 2, the apparatus for destroying a confidential document further includes: a head tank 6; a first cavity 61 and a second cavity 62 are arranged in the high-level tank 6, and certainly, in some embodiments, a third cavity 63 may also be included, it should be noted that in this embodiment, a through hole for feeding and discharging pulp is arranged at the bottom of each cavity, and the first cavity 61, the second cavity 62, and the third cavity 63 are sequentially communicated with each other at the top of the cavities; the first cavity 61 is communicated with the pulp storage tank 2, the second cavity 62 is communicated with the twin-wire pulp extruder 4, and the third cavity 63 is connected with the pulp storage tank 2 and the high-concentration slag separator 3.

Referring to fig. 2, in some embodiments, the method further includes: an impurity separator 7, a cylindrical sieve 8 and a recovery tank; the hydrapulper 1 is connected with the impurity separator 7 and the recovery tank; the impurity separator 7 is connected with the cylindrical sieve 8, and the impurity separator 7 and the cylindrical sieve 8 are used for separating impurities in water; the impurity separator 7 and the cylindrical screen 8 are respectively connected with the recovery tank, and the recovery tank is connected with the high-concentration slag separator 3, the impurity separator 7, the cylindrical screen 8 and the double-net pulp extruder 4. It should be noted that, in actual operation, the paper security document is put into the hydropulper 1 to be defibered into paper pulp fibers, the defibering concentration of the hydropulper 1 is 4-5%, defibered paper pulp passes through the impurity separator 7, and the cylindrical screen removes impurities such as book binding, clips, plastic films and the like in the document. The pulp from which the above impurities are removed passes through the twin-wire press 4, and the pulp with a concentration of about 4% is pressed into pulp lumps with a concentration of 40%, and the pulp lumps are transported to a nearby paper mill to be used as a paper making raw material.

In order to prevent the waste of water resource, improve the utilization ratio of water resource simultaneously, the accumulator includes: the device comprises a recovery pulp tank 241 and a white water tank 242, wherein the impurity separator 7 and the cylindrical screen 8 are respectively connected with the recovery pulp tank 241, the recovery pulp tank 241 is connected with the white water tank 242, and the white water tank 242 is connected with the hydrapulper 1, the high-concentration slag separator 3, the impurity separator 7, the cylindrical screen 8 and the twin-wire press 4. It should be noted that the recycling size tank 241 and the white water tank 242 solve the environmental protection problem of water balance in the pulp making process, and the whole operation system has no sewage discharge. Impurities in the pulp are separated by the action of an impurity separator 7 and a cylindrical screen 8, and the obtained pulp or white water can be directly conveyed to the hydrapulper 1 for reuse. At present, 36 cubic meters of water are recycled in equipment every day, 20 tons of paper documents can be treated and destroyed in 8 hours, 1.5 cubic meters of water is taken away in each ton of document paper, and the water is actually transported to a paper making factory together with paper pulp with the concentration of 40 percent to be used as paper making raw materials. The application passes through retrieve thick liquid groove 241, white water groove 242 sets up will reduce external white water use amount by a wide margin, and then has improved the utilization ratio of water resource.

The pulp in the whole system is conveyed by the aid of a pulp pump 5, a plurality of pulp pumps are arranged, the pulp recovery tank is connected with the hydrapulper 1 through the pulp pump 5, the pulp storage tank 2 is connected with the high-concentration slag separator 3 through the pulp pump 5, the white water tank 242 is connected with the impurity separator 7 and the cylindrical screen 8 through the pulp pump 5, the white water tank 242 is connected with the high-concentration slag separator 3 through the pulp pump 5, and the double-screen pulp extruder 4 is connected with the white water tank 242 through the pulp pump 5. The slurry pump 5 can be a reuse water pump, a recovery slurry pump, a spray pressure pump, a seal water pump, a pulping white water pump and a concentration adjusting white water pump.

In order to improve the destruction efficiency, the confidential document destruction device further comprises: the flat leather conveying machine 9, the discharge end of the flat leather conveying machine 9 is arranged above the hydrapulper 1, two sides of the other end of the flat leather conveying machine are provided with two-side working tables, and the flat leather conveying machine 9 is used for conveying waste paper to be destroyed. Of course, in some embodiments also: a crushing screw 10 and an inclined conveying screw 11; the feeding end of the crushing screw 10 is located below the discharging end of the double-net pulp extruder 4, the discharging end of the crushing screw 10 is connected with the inclined conveying screw 11, the paper pulp after being dewatered by the crushing screw 10 is changed into an irregular shape from a flat shape, and then the inclined conveying screw 11 drives the paper pulp to move upwards and extrude the paper pulp into blocks with the tail end. The flat leather conveyor 9, the crushing screw 10 and the inclined conveying screw 11 can improve the conveying efficiency of paper and pulp blocks, and reduce the cost of manpower or conveying equipment.

It should be noted that, although the above embodiments have been described herein, the scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, the changes and modifications of the embodiments described herein, or the equivalent structure or equivalent process changes made by the contents of the specification and the drawings of the present invention, directly or indirectly apply the above technical solutions to other related technical fields, all included in the scope of the present invention.

Claims

1. A security document destruction apparatus comprising: a hydrapulper, a pulp storage tank, a high-concentration slag separator, a double-net pulp extruder and a pulp pump;

2. The secure document destruction apparatus as recited in claim 1, further comprising: a high-level tank; a first cavity and a second cavity are arranged in the high-level box position, a through hole for feeding and discharging the pulp is formed in the bottom of each cavity, and the first cavity and the second cavity are sequentially communicated at the top of each cavity; the first cavity is communicated with the pulp storage tank, and the second cavity is communicated with the double-net pulp squeezing machine.

3. The secure document destruction apparatus as recited in claim 1, further comprising: an impurity separator, a cylindrical sieve and a recovery tank;

4. A security document destruction apparatus as claimed in claim 3, wherein the recovery tank comprises: the device comprises a recovery pulp tank and a white water tank, wherein the impurity separator and a cylindrical screen are respectively connected with the recovery pulp tank, the recovery pulp tank is connected with the white water tank, and the white water tank is connected with the hydrapulper, the high-concentration slag remover, the impurity separator, the cylindrical screen and the double-net pulp extruder.

5. The secure document destruction apparatus as recited in claim 1, further comprising: the discharging end of the flat leather conveyor is arranged above the hydrapulper, two sides of the other end of the flat leather conveyor are provided with two side working tables, and the flat leather conveyor is used for conveying waste paper to be destroyed.

6. The secure document destruction apparatus as recited in claim 1, further comprising: a crushing screw and an inclined conveying screw; the feeding end of the crushing screw is positioned below the discharging end of the double-net pulp extruder, and the discharging end of the crushing screw is connected with the inclined conveying screw.

7. The secure document destruction apparatus as recited in claim 1, further comprising: a full-automatic brush filter and a spray water tank; the spraying water tank is connected with the double-net pulp extruder, and the full-automatic brush type filter is connected with the spraying water tank.