Paper pulp making system

Abstract

The utility model discloses a paper pulp pulping system which comprises a pulper, a first pulp chest, a second pulp chest, a third pulp chest and a clean water tank, a water outlet of the pulper is connected with a first pipeline for conveying to the first pulp chest, and a water outlet of the first pulp chest is connected with a second pipeline for conveying to the second pulp chest. A water outlet of the second pulp tank is connected with a third pipeline for conveying to the third pulp tank, the clean water tank is connected with a clean water inlet pipeline, a water outlet of the clean water tank is connected with a fourth pipeline, and the fourth pipeline is provided with a first clean water pipe and a second clean water pipe for conveying to the third pulp tank and the pulper respectively. The pulping machine, the first pulp chest, the second pulp chest and the third pulp chest are used for carrying out smashing, grinding, diluting, quantitative detection and other procedures to gradually process and form paper pulp needed by paper product production, the clean water tank is used for supplying water to assist dilution, the needed paper pulp can be stably output, the production efficiency is high, the occupied area is small, and the manufacturing cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of paper product production, in particular to a paper pulping system. Background Art

[0002] To meet environmental protection needs, more and more paper products are appearing in our daily lives. In the production process of paper products, the pulp needs to be salvaged and extruded through cold and hot extrusion to produce the paper products we need. The production of paper products has certain requirements for the concentration of pulp, and the amount of pulp slurry required in production is very large.

[0003] In the current paper product production process, due to the large demand for pulp slurry, the prepared slurry of predetermined concentration is generally stored in large pulp tanks or pulp pools and can be taken at any time. This existing storage method also has many disadvantages. First, large pulp tanks or pulp pools occupy a large area and need to meet the demand for storing a large amount of pulp, which has high construction and use costs. Secondly, it is difficult to stir the slurry. If it is not stirred well for a long time, it is easy to cause the pulp to precipitate. Thirdly, it is difficult to clean. The large volume makes it inconvenient for the staff to clean it, consumes a lot of water resources, and takes a long time to clean. The long cleaning time will affect production efficiency. Finally, the pulp pool will volatilize toxic gases during long-term storage. When the concentration is too high, it is easy to cause poisoning to the staff, and the safety is low. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a paper pulping system.

[0005] In order to achieve the above-mentioned purpose, a paper pulping system includes a pulper, a first pulp pool, a second pulp pool, a third pulp pool and a clear water pool arranged in sequence, the water outlet of the pulper is connected to a first pipe for transporting to the first pulp pool, the water outlet of the first pulp pool is connected to a second pipe for transporting to the second pulp pool, the water outlet of the second pulp pool is connected to a third pipe for transporting to the third pulp pool, the clear water pool is connected to a clear water inlet pipe, the water outlet of the clear water pool is connected to a fourth pipe, the fourth pipe is provided with a first clear water pipe and a second clear water pipe for transporting to the third pulp pool and the pulper respectively; the output port of the second pipe includes an output end and a return end, the output end and the return end are respectively provided with a control valve, the output end is transported to the second pulp pool, and the return end is transported to the first pulp pool, and the middle section of the second pipe is also connected to a grinder; the third pipe is connected to a metering pump, a concentration sensor and a control valve in sequence.

[0006] The pulper mixes paperboard raw materials and clean water to form raw pulp. The raw pulp is ground into fine particles in the first pulp tank and then transported to the second pulp tank to prevent the pulp particles from becoming too large. The second pulp tank then uses a metering pump and a concentration sensor to calculate the pulp input to the third pulp tank for the next step of precise dilution. The clean water tank supplies water to the third pulp tank to complete the dilution work, and then the third pulp tank discharges the pulp with a predetermined concentration. The entire pulping system adopts a step-by-step cycle operation, which gradually processes the pulp from crushing to liquid discharge, and can continuously provide pulp. It does not require large pulp storage tanks or pulp tanks to store pulp. It occupies a small area, is easy to clean, and does not cause sedimentation problems caused by long-term storage. It effectively avoids the problem of high concentrations of toxic gases caused by long-term storage of pulp, and has good safety.

[0007] Preferably, the outlet of the third pulp pool is connected to a fifth pipe, and the output port of the fifth pipe includes a pulp outlet end and a filter end, the pulp outlet end and the filter end are respectively provided with control valves, and the filter end is also connected to a slag removal component.

[0008] The control valve can control the slurry to be discharged from the pulp outlet or the filter end. The slag removal component is connected to the filter end and is used for the third pulp pool to perform slag removal after a certain period of production to prevent excessive accumulation of pulp residue and the problem of excessive concentration.

[0009] Preferably, the slag removal assembly includes a closed slag remover and a pressure screen, the filter end is connected to the closed slag remover, the water outlet of the closed slag remover is connected to the pressure screen through a pipe, and the water outlet of the pressure screen is connected to a sixth pipe to transport to the first slurry pool.

[0010] The slag removal component separates the residue from the water through a closed slag remover, and the separated water is transported to the first pulp pool for dilution through the sixth pipeline, forming a cycle.

[0011] Preferably, it includes an additive dosing component, the additive dosing component includes an additive dosing machine, and the additive dosing machine is connected to a first additive pipeline and a second additive pipeline for transporting the additive to the first pulp pool and the second pulp pool respectively.

[0012] The additive dosing machine feeds waterproof additives and oil-proof additives into the first pulp pool and the second pulp pool respectively, thereby promoting the waterproof and oil-proof functions of the manufactured paper products.

[0013] Preferably, it includes a waste slurry return water component, which includes a vacuum pump and a vacuum steam-water separator. The vacuum pump is connected to the vacuum steam-water separator through a pipeline. The water outlet of the vacuum steam-water separator is connected to a seventh pipeline to transport it to a clear water tank. A check valve is provided on the seventh pipeline.

[0014] When pulp is used to produce paper products, production cannot continue when the concentration is lower than the requirement. A vacuum steam-water separator can be used to separate water and residue for secondary use, saving resources.

[0015] Preferably, it includes a sewage discharge component, and sewage outlets are respectively provided at the bottom of the first pulp pool, the second pulp pool, the third pulp pool and the clear water pool. The sewage discharge component includes a sewage pipe, and the sewage pipes are respectively connected to the sewage outlets of the first pulp pool, the second pulp pool, the third pulp pool and the clear water pool. The sewage outlets are respectively provided with control valves, and the sewage pipes are also provided with sewage discharge ends.

[0016] The first pulp pool, the second pulp pool, the third pulp pool and the clean water pool are small in size and easy to clean. The sewage discharge component is used to discharge sewage after cleaning and is easy to operate.

[0017] Preferably, the first pipe, the second pipe, the fourth pipe and the clean water inlet pipe are respectively connected to a water pump.

[0018] The water pump is set up to ensure the stability of slurry transportation.

[0019] Preferably, the first clean water pipe and the second clean water pipe are respectively provided with a flow meter and a control valve.

[0020] The flow meter is used in conjunction with the control valve to accurately control the delivery volume of clean water.

[0021] Preferably, control valves are respectively provided at the water outlets of the pulper, the first pulp pool, the second pulp pool, the third pulp pool and the clear water pool.

[0022] Preferably, the first pulp pool, the second pulp pool, the third pulp pool and the clear water pool are respectively provided with a stirring assembly, and the stirring assembly includes a stirring shaft and a stirring blade arranged on the stirring shaft, and the stirring shaft is connected to a driving motor for driving the stirring shaft.

[0023] The stirring component prevents sedimentation and ensures the uniformity of the slurry.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] The utility model gradually processes the pulp required for paper product production through the processes of crushing, grinding, diluting, and quantitative detection in a pulper, a first pulp pool, a second pulp pool, and a third pulp pool. Water is supplied through a clean water pool for auxiliary dilution, and the required pulp can be output stably. The circular production and mixing of pulp has high production efficiency, and the equipment occupies a small area and has low manufacturing cost, which greatly optimizes the production process of paper products made from pulp.

[0026] The slag removal and waste pulp return components further recycle water resources, forming a circulation system. Due to the equipment's small size and the inclusion of a sewage discharge component, cleaning can be completed with a relatively small amount of water, which is then discharged through the sewage discharge component. This saves manpower, material resources, and time, ensuring the pulping system's operational life. This convenient cleaning also prevents the excessive volatilization of toxic gases from long-term pulp storage, which can easily poison workers. The presence of a stirring component also avoids the problem of sedimentation caused by pulp storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments.

[0028] Figure 1 It is a structural diagram of the present utility model.

[0029] Figure 2 It is a schematic diagram of the local structure of the utility model.

[0030] Figure 3 It is a schematic diagram of the local structure of the utility model.

[0031] Figure 4 It is a schematic diagram of the local structure of the utility model.

[0032] Figure 5 It is a schematic diagram of the local structure of the utility model.

[0033] Figure 6 It is a schematic diagram of the local structure of the utility model.

[0034] Figure 7 It is a schematic diagram of the local structure of the utility model.

[0035] Figure 8 It is a schematic diagram of the local structure of the utility model.

[0036] Figure 9 It is a schematic diagram of the local structure of the utility model. DETAILED DESCRIPTION

[0037] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. Furthermore, descriptions of known structures and technologies are omitted in the following description to avoid unnecessary confusion regarding the concepts of the present invention.

[0038] Please refer to Figure 1-8A paper pulping system includes a pulper 1, a first pulp pool 2, a second pulp pool 3, a third pulp pool 4 and a clear water pool 5 arranged in sequence. The pulper 1 can be implemented in any existing manner. The pulper 1 breaks up the paperboard raw material and merges it with water to form raw pulp. The water outlet of the pulper 1 is connected to a first pipe 6 to transport it to the first pulp pool 2, and the water outlet of the first pulp pool 2 is connected to a second pipe 7 to transport it to the second pulp pool 3. The output port of the second pipe 7 includes an output end 8 and a return end 9. The output end 8 and the return end 9 are respectively provided with a control valve 10. The output end 8 is transported to the second pulp pool 3, and the return end 9 is transported to the first pulp pool 2. The middle section of the second pipe 7 is also connected to a grinder 11. The raw pulp is ground into qualified pulp particles through the grinder 11, and the slurry is returned to the first pulp pool 2. After sufficient grinding, the slurry is controlled by the control valve 10 and then transported to the second pulp pool 3 through the output end 8. The outlet of the second slurry tank 3 is connected to a third pipe 12 for transporting the slurry to the third slurry tank 4, where the prepared slurry is ultimately output from the third slurry tank 4. The clean water tank 5 is connected to a clean water inlet pipe 13, and the outlet of the clean water tank 5 is connected to a fourth pipe 14. The fourth pipe 14 is provided with a first clean water pipe 15 and a second clean water pipe 16 for transporting the slurry to the third slurry tank 4 and the pulper 1, respectively. The third slurry tank 4 dilutes the slurry to a predetermined concentration with water transported by the first clean water pipe 15, and the pulper 1 is supplied with water via the second clean water pipe 16. The third pipe 12 is sequentially connected to a metering pump 17, a concentration sensor 18, and a control valve 10 for calculating the concentration and transport volume of the slurry transported from the second slurry tank 3 to the third slurry tank 4. This can be used to calculate the amount of water transported by the first clean water pipe 15 required to dilute the slurry to the predetermined concentration in the third slurry tank 4. The first clean water pipe 15 and the second clean water pipe 16 are respectively provided with a flow meter 19 and a control valve 10. The flow meter 19 cooperates with the control valve 10 to accurately control the amount of water delivered by the first clean water pipe 15 to the third pulp pool 4 and the amount of water delivered by the second clean water pipe 16 to the pulper 1.

[0039] The outlet of the third pulp pool 4 is connected to a fifth pipe 20, and the output ports of the fifth pipe 20 include a pulp outlet end 21 and a filter end 22. The pulp outlet end 21 and the filter end 22 are respectively provided with a control valve 10. During normal pulping, the slurry is output from the pulp outlet end 21, and the filter end 22 is also connected to a slag removal component 23. After a period of production, in order to prevent excessive accumulation of pulp in the third pulp pool 4 and affect the concentration accuracy, it is necessary to regularly remove the slurry in the third pulp pool 4, and the slurry slag removal work is carried out through the slag removal component 23.

[0040] The slag removal assembly 23 includes a closed slag remover 24 and a pressure screen 25. Both the closed slag remover 24 and the pressure screen 25 can be implemented using any existing technology. The filter end 22 is connected to the closed slag remover 24. The closed slag remover 24 separates paper slag and water from the slurry. The water outlet of the closed slag remover 24 is connected to the pressure screen 25 via a pipe. The water outlet of the pressure screen 25 is connected to a sixth pipe 26 for transporting the water to the first pulp pool 2. The separated water is then transported to the first pulp pool 2. Since the pulp needs to be diluted to a lower concentration to meet production requirements, and the concentration of the original pulp is extremely high, the separated water reflux of the slag removal assembly 23 can dilute the slurry in the first pulp pool 2, thereby further improving production efficiency while removing slag.

[0041] The additive dosing assembly 27 includes an additive dosing machine 28. The additive dosing machine 28 is connected to a first additive pipeline 29 and a second additive pipeline 30, which are respectively transported to the first pulp pool 2 and the second pulp pool 3. The additive dosing machine 28 can be implemented using any existing technology. The additive dosing machine 28 independently transports and controls the flow rates of the first additive pipeline 29 and the second additive pipeline 30, thereby completing the addition of additives during the pulp dilution process.

[0042] The waste pulp return assembly 31 includes a vacuum pump 32 and a vacuum steam-water separator 33. The vacuum pump 32 is connected to the vacuum steam-water separator 33 via a pipeline. The vacuum pump 32 extracts the pulp wastewater after production and delivers it to the vacuum steam-water separator 33, which separates the paper residue from the water. The outlet of the vacuum steam-water separator 33 is connected to a seventh pipeline 34, which delivers it to the clean water tank 5. The seventh pipeline 34 is equipped with a check valve 35. The separated water is delivered to the clean water tank 5 through the seventh pipeline 34. The check valve 35 is used to prevent water backflow, further saving water resources.

[0043] The sewage treatment system 36 includes a sewage discharge assembly 36. The bottoms of the first pulp pool 2, the second pulp pool 3, the third pulp pool 4, and the clean water pool 5 are respectively provided with sewage discharge outlets. After use, they need to be cleaned. During cleaning, after the cardboard raw material is stopped, the first pulp pool 2, the second pulp pool 3, the third pulp pool 4, the clean water pool 5, and each pipeline are cleaned by continuous water supply circulation. The cleaned wastewater is finally discharged through the sewage discharge outlet. The sewage treatment assembly 36 includes a sewage discharge pipe 37. The sewage discharge pipe 37 is respectively connected to the sewage discharge outlets of the first pulp pool 2, the second pulp pool 3, the third pulp pool 4, and the clean water pool 5. The sewage discharge outlets are respectively provided with control valves 10. The sewage discharge pipe 37 is also provided with a sewage discharge end 38, and the cleaning wastewater is discharged from the sewage discharge end 38.

[0044] The first pipe 6 , the second pipe 7 , the fourth pipe 14 and the clean water inlet pipe 13 are respectively connected to a pumping pump 39 , and the pumping pump 39 ensures the flow stability of the slurry or clean water.

[0045] Control valves 10 are respectively provided at the water outlets of the pulper 1 , the first pulp pool 2 , the second pulp pool 3 , the third pulp pool 4 and the clear water pool 5 .

[0046] The first pulp pool 2, the second pulp pool 3, the third pulp pool 4 and the clear water pool 5 are respectively provided with a stirring assembly 40, and the stirring assembly 40 includes a stirring shaft 41 and a stirring blade 42 arranged on the stirring shaft 41. The stirring shaft 41 is connected to a driving motor 43 for driving it to operate. The setting of the stirring assembly 40 can prevent sedimentation.

[0047] Working principle:

[0048] The cardboard raw material is put into the pulper 1, and after being introduced into clean water, the pulper 1 breaks and mixes it into raw pulp. The raw pulp is transported to the first pulp pool 2 for circulation grinding to reduce the pulp particles, and at the same time, water is added to dilute it and add additives, and then it is transported to the second pulp pool 3; the second pulp pool 3 is further added with additives and transported to the third pulp pool 4. During the transportation process, the pulp concentration and transportation volume supplied to the third pulp pool 4 are calculated by the metering pump 17 and the concentration sensor 18; the third pulp pool 4 is diluted with clean water, and the amount of water introduced is calculated by the flow meter 19. Combined with the calculation of the metering pump 17 and the concentration sensor 18, the slurry dilution concentration in the third pulp pool 4 can be accurately controlled. The slurry after dilution is output from the pulp outlet end, and the third pulp pool 4 is connected to The slag removal component 23 prevents excessive accumulation of pulp residue in the third pulp pool 4 and affects the concentration accuracy. The water separated by the slag removal component 23 is transported to the first pulp pool 2 for dilution; the clear water pool 5 supplies water to the pulper 1 and the third pulp pool 4, and the water supply is controlled by the flow meter 19 and the control valve 10; the waste pulp return water component 31 separates the used pulp wastewater through the vacuum pump 32 and the vacuum steam-water separator 33, and the separated water is provided to the clear water pool 5 to save water resources; the additive dosing component 27 adds additives to the first pulp pool 2 and the second pulp pool 3; the sewage discharge component 36 discharges the wastewater after cleaning the first pulp pool 2, the second pulp pool 3, the third pulp pool 4 and the clear water pool 5.

[0049] It should be understood that the above-described specific embodiments of the present invention are merely illustrative of or explanation of the principles of the present invention and do not constitute limitations of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention shall be included within the scope of protection of the present invention. In addition, the appended claims of the present invention are intended to cover all variations and modifications that fall within the scope and metes and bounds of the appended claims, or equivalents thereof.

Claims

1. A pulping system, characterized in that: It includes a pulper, a first pulp pool, a second pulp pool, a third pulp pool and a clear water pool arranged in sequence, the water outlet of the pulper is connected to a first pipe for transporting to the first pulp pool, the water outlet of the first pulp pool is connected to a second pipe for transporting to the second pulp pool, the water outlet of the second pulp pool is connected to a third pipe for transporting to the third pulp pool, the clear water pool is connected to a clear water inlet pipe, the water outlet of the clear water pool is connected to a fourth pipe, the fourth pipe is provided with a first clear water pipe and a second clear water pipe for transporting to the third pulp pool and the pulper respectively; the output port of the second pipe includes an output end and a return end, the output end and the return end are respectively provided with a control valve, the output end is transported to the second pulp pool, the return end is transported to the first pulp pool, and the middle section of the second pipe is also connected to a grinder; the third pipe is connected to a metering pump, a concentration sensor and a control valve in sequence.

2. A pulping system according to claim 1, characterized in that: The outlet of the third pulp pool is connected to a fifth pipe, and the output port of the fifth pipe includes a pulp outlet end and a filter end. The pulp outlet end and the filter end are respectively provided with control valves, and the filter end is also connected to a slag removal component.

3. A pulping system according to claim 2, characterized in that: The slag removal assembly includes a closed slag remover and a pressure screen. The filter end is connected to the closed slag remover. The water outlet of the closed slag remover is connected to the pressure screen through a pipeline. The water outlet of the pressure screen is connected to a sixth pipeline to transport to the first pulp pool.

4. A pulping system according to claim 1, characterized in that: The invention comprises an additive adding component, wherein the additive adding component comprises an additive adding machine, and the additive adding machine is connected with a first additive pipeline and a second additive pipeline and transports the additives to the first pulp pool and the second pulp pool respectively.

5. A pulping system according to claim 1, characterized in that: It includes a waste slurry return water component, which includes a vacuum pump and a vacuum steam-water separator. The vacuum pump is connected to the vacuum steam-water separator through a pipeline. The outlet of the vacuum steam-water separator is connected to a seventh pipeline to transport it to a clean water tank. A check valve is provided on the seventh pipeline.

6. A pulping system according to claim 1, characterized in that: It includes a sewage discharge component, and sewage outlets are respectively provided at the bottom of the first pulp pool, the second pulp pool, the third pulp pool and the clear water pool. The sewage discharge component includes a sewage pipe, and the sewage pipes are respectively connected to the sewage outlets of the first pulp pool, the second pulp pool, the third pulp pool and the clear water pool. The sewage outlets are respectively provided with control valves, and the sewage pipes are also provided with sewage discharge ends.

7. A paper pulping system according to claim 1, characterized in that: The first pipeline, the second pipeline, the fourth pipeline and the clean water inlet pipeline are respectively connected to a water pump.

8. A paper pulping system according to claim 1, characterized in that: The first clean water pipe and the second clean water pipe are respectively provided with a flow meter and a control valve.

9. A paper pulping system according to claim 1, characterized in that: Control valves are respectively provided at the water outlets of the pulper, the first pulp pool, the second pulp pool, the third pulp pool and the clear water pool.

10. A paper pulping system according to claim 1, characterized in that: The first pulp pool, the second pulp pool, the third pulp pool and the clear water pool are respectively provided with a stirring assembly, and the stirring assembly includes a stirring shaft and a stirring blade arranged on the stirring shaft, and the stirring shaft is connected to a driving motor for driving the stirring shaft to operate.

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