Paper dust separation and recovery treatment equipment

Abstract

The utility model relates to paper dust separation recovery processing equipment which comprises a repulping tank, a smashing tank, a dust falling tank and two cyclone separators, the two cyclone separators are both installed on the top face of the smashing tank, each cyclone separator is provided with two inlets and an outlet, each inlet is connected with a paper edge conveying pipeline, and each outlet is connected with a paper edge conveying pipeline. The conical part of each cyclone separator is communicated with the crushing tank, the crushing tank is connected with a water supply pipe and a pulp discharge pipe, and the tail end of the pulp discharge pipe extends into the pulping tank; and a crushing mechanism for crushing deckle edges is arranged in the crushing tank. Through cooperative use of the smashing tank, the dust falling tank, the cyclone separator and the filter press, an existing deckle edge conveying and collecting treatment mode is changed, the smashing tank is used for conducting centralized collection and smashing and pulping for papermaking, meanwhile, generated paper dust is subjected to dust falling treatment, and the field production environment is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of toilet paper processing, in particular to paper dust separation and recovery processing equipment. Background Art

[0002] The paper edges produced by the trimming of the four facial tissue production lines in the papermaking workshop are transported to the pulping tank of the papermaking machine through four conveying pipes, and then crushed and reused. During operation, the powder produced by the paper edges broken by the trimming fan and the paper dust and shredded paper generated by the friction of the shredded paper in the pipe enter the pulping tank under the strong push of the fan and spread everywhere, resulting in flying paper shreds and dust on site and a poor environment.

[0003] After on-site analysis, the main reason for the flying paper dust is that the pulping tank is in the shape of a barrel with an open top and no wind pressure relief device at the bottom. After the wind pressure enters, it can only form a circulation flow in the pulping tank, diffuse upward to the open part, and bring out the paper dust and scatter it, destroying the on-site environment.

[0004] Based on the above technical problems, the inventors changed the existing paper edge transportation and collection processing methods, used special storage facilities for centralized collection and crushing, and pulped them for papermaking. At the same time, the generated paper dust was subjected to dust reduction treatment, which significantly improved the on-site production environment. Utility Model Content

[0005] The utility model aims at the deficiencies of the prior art and provides paper dust separation, recovery and processing equipment.

[0006] The utility model is realized through the following technical scheme, and provides paper dust separation and recovery processing equipment, including a pulping tank, a crushing tank, a dust reduction tank and two cyclone separators, the two cyclone separators are both installed on the top surface of the crushing tank, each cyclone separator is provided with two inlets and one outlet, each inlet is connected to a paper edge conveying pipeline, the conical part of each cyclone separator is communicated with the crushing tank, a water supply pipe and a pulp discharge pipe are connected to the crushing tank, and the end of the pulp discharge pipe extends into the pulping tank; a crushing mechanism for crushing paper edges is provided in the crushing tank; two outlets are both connected to the dust reduction tank, an exhaust port is provided on the dust reduction tank, a spray dust reduction mechanism is provided in the dust reduction tank, a sewage discharge pipe is provided on the dust reduction tank, and the sewage discharge pipe is connected to the feed inlet of the filter press feed pump.

[0007] Preferably, the pulverizing mechanism comprises a driving motor mounted on the top surface of the pulverizing tank, the output shaft of the driving motor extends into the pulverizing tank, a transmission shaft is fixedly connected to the output shaft, and a stirring tooth is mounted on the transmission shaft. The driving motor provides power to realize the rotation of the stirring tooth, and the mixture of water and paper edges is beaten into pulp under the stirring action of the stirring tooth.

[0008] Preferably, the spray dust reduction mechanism includes a spray pipe fixedly mounted on the top surface of the dust reduction tank, a plurality of spray heads are mounted on the spray pipe, the spray pipe is connected to a water supply pipe, and the water supply pipe runs through the side wall of the dust reduction tank. The air entering the dust reduction tank contains a certain amount of paper dust, and the spraying water can play a role in dust reduction.

[0009] Preferably, a first valve switch is installed on the water supply pipe, a second valve switch is installed on the pulp discharge pipe, and a third valve switch is installed on the sewage discharge pipe. The first valve switch is opened when water needs to be added to the crushing tank; the second valve switch is opened when pulp needs to be discharged into the pulping tank; and the third valve switch is opened when the dust reduction tank needs to be discharged.

[0010] Preferably, both outlets are connected to an air delivery duct, and the end of the air delivery duct is connected to a dust suppression tank.

[0011] Preferably, a placement table is provided on the workshop floor, and the dust suppression tank is installed on the placement table.

[0012] The beneficial effects of the utility model are:

[0013] The present application changes the existing paper edge conveying and collection processing method through the coordinated use of a crushing tank, a dust reduction tank, a cyclone separator and a filter press. A crushing tank is used for centralized collection and crushing, and the pulp is provided for papermaking. At the same time, the generated paper dust is subjected to dust reduction treatment, so that the on-site production environment can be significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] As shown in the figure:

[0016] 1. Crushing tank, 2. First valve switch, 3. Water supply pipe, 4. Slurry discharge pipe, 5. Second valve switch, 6. Slurry crushing tank, 7. Stirring teeth, 8. Transmission shaft, 9. Driving motor, 10. Cyclone separator, 11. Inlet, 12. Paper edge conveying pipe, 13. Air conveying pipe, 14. Exhaust port, 15. Spray pipe, 16. Spray head, 17. Water supply pipe, 18. Sewage pipe, 19. Third valve switch, 20. Placement table, 21. Exit, 22. Dust suppression tank. DETAILED DESCRIPTION

[0017] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0018] like Figure 1As shown, the utility model includes a pulping tank 6, a crushing tank 1, a dust reduction tank 22 and two cyclone separators 10. The two cyclone separators 10 are installed on the top surface of the crushing tank 1. Each cyclone separator 10 is provided with two inlets 11 and an outlet 21. Each inlet 11 is connected to a paper edge conveying pipe 12. The paper edge conveying pipe 12 is an original structure. The conical part of each cyclone separator 10 is connected to the crushing tank 1. The water supply pipe 3 and the pulp discharge pipe 4 are connected to the crushing tank 1. The end of the pulp discharge pipe 4 extends into the pulping tank 6. A crushing mechanism for crushing paper edges is provided in the crushing tank 1. The two outlets 21 are connected to the dust reduction tank 22. The dust reduction tank 22 is provided with an exhaust port 14. The dust reduction tank 22 is provided with a spray dust reduction mechanism. The dust reduction tank 22 is provided with a sewage pipe 18. The sewage pipe 18 is connected to the feed inlet of the filter press feed pump. The filter press is an existing structure.

[0019] In this embodiment, the pulverizing mechanism includes a driving motor 9 mounted on the top surface of the pulverizing tank 1, the output shaft of the driving motor 9 extends into the pulverizing tank 1, a transmission shaft 8 is fixedly connected to the output shaft, and a stirring tooth 7 is mounted on the transmission shaft 8. The driving motor 9 provides power to realize the rotation of the stirring tooth 7, and the mixture of water and paper edges is beaten into pulp under the stirring action of the stirring tooth 7.

[0020] In this embodiment, the spray dust reduction mechanism includes a spray pipe 15 fixedly mounted on the top surface of the dust reduction tank 22, a plurality of spray heads 16 are mounted on the spray pipe 15, the spray pipe 15 is connected to a water supply pipe 17, and the water supply pipe 17 runs through the side wall of the dust reduction tank 22. The air entering the dust reduction tank 22 contains a certain amount of paper dust, and the spraying water can play a role in dust reduction.

[0021] In this embodiment, a first valve switch 2 is installed on the water supply pipe 3, a second valve switch 5 is installed on the pulp discharge pipe 4, and a third valve switch 19 is installed on the sewage discharge pipe 18. When water needs to be added to the crushing tank 1, the first valve switch 2 is opened; when pulp needs to be discharged into the pulping tank 6, the second valve switch 5 is opened; when the dust reduction tank 22 needs to be discharged, the third valve switch 19 is opened.

[0022] In this embodiment, the two outlets 21 are both connected to the air delivery pipe 13 , and the end of the air delivery pipe 13 is connected to the dust suppression tank 22 .

[0023] In this embodiment, a placement table 20 is provided on the workshop floor, and the dust suppression tank 22 is installed on the placement table.

[0024] When in use, the paper edges conveyed by the paper edge conveying pipe 12 enter the two cyclone separators 10 respectively, and the paper edges enter the crushing tank 1. Under the stirring action of the stirring teeth 7, the mixture of water and paper edges is beaten into pulp, and the pulp is sent to the pulping tank 6 through the pulp discharge pipe 4 for reuse. The paper dust is discharged through the outlet 21 and then merged into the air conveying pipe 13, and then sent to the dust reduction tank 22 through the air conveying pipe 13. Dust is reduced by spraying water, and the purified air is discharged through the exhaust port 14. The sewage in the dust reduction tank 22 is discharged to the filter press for filter pressure treatment.

[0025] The present application changes the existing paper edge conveying and collection processing method through the coordinated use of a crushing tank 1, a dust reduction tank 22, a cyclone separator 10 and a filter press. The crushing tank 1 is used for centralized collection and crushing, and the pulp is provided for papermaking. At the same time, the generated paper dust is subjected to dust reduction treatment, so that the on-site production environment can be significantly improved.

[0026] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be achieved by or by adopting the existing technology, which will not be repeated here. The above embodiments and drawings are only used to illustrate the technical scheme of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not deviate from the purpose of the present invention and should also fall within the scope of protection of the claims of the present invention.

Claims

1. Paper dust separation and recovery equipment, characterized by: It includes a pulping tank, a crushing tank, a dust reduction tank and two cyclone separators. The two cyclone separators are installed on the top surface of the crushing tank. Each cyclone separator is provided with two inlets and one outlet. Each inlet is connected to a paper edge conveying pipeline. The conical part of each cyclone separator is connected to the crushing tank. The crushing tank is connected with a water supply pipe and a pulp discharge pipe, and the end of the pulp discharge pipe extends into the pulping tank. A crushing mechanism for crushing paper edges is provided in the crushing tank. Two outlets are connected to the dust reduction tank. An exhaust port is provided on the dust reduction tank. A spray dust reduction mechanism is provided in the dust reduction tank. A sewage discharge pipe is provided on the dust reduction tank, and the sewage discharge pipe is connected to the feed inlet of the filter press feed pump.

2. The paper dust separation and recovery equipment according to claim 1, characterized in that: The pulverizing mechanism comprises a driving motor installed on the top surface of the pulverizing tank, the output shaft of the driving motor extends into the pulverizing tank, a transmission shaft is fixedly connected to the output shaft, and stirring teeth are installed on the transmission shaft.

3. The paper dust separation and recovery equipment according to claim 2, characterized in that: The spray dust reduction mechanism comprises a spray pipe fixedly mounted on the top surface of the dust reduction tank, a plurality of spray heads are mounted on the spray pipe, the spray pipe is connected to a water supply pipe, and the water supply pipe runs through the side wall of the dust reduction tank.

4. The paper dust separation and recovery equipment according to claim 1, characterized in that: A first valve switch is installed on the water supply pipe, a second valve switch is installed on the slurry discharge pipe, and a third valve switch is installed on the sewage discharge pipe.

5. The paper dust separation and recovery equipment according to claim 1, characterized in that: The two outlets are connected to an air delivery pipeline, and the end of the air delivery pipeline is connected to a dust suppression tank.

6. The paper dust separation and recovery equipment according to claim 1, characterized in that: A placement table is provided on the workshop floor, and the dust suppression tank is installed on the placement table.

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