A slurry water recovery system

Abstract

The present invention relates to the technical field of papermaking, and specifically discloses a pulp water recovery system, including: a waste pulp tank, a filter tank, a collection tank, and a paste making machine; the waste pulp tank is connected to the sewage outlet of a paperboard production line machine for storing waste pulp; the filter tank is fluidly connected to the waste pulp tank, and a filter screen is detachably provided in the filter tank, and the filter screen is used to filter the waste pulp flowing out of the waste pulp tank to obtain pulp water; the collection tank is fluidly connected to the filter tank through a first pipeline; the paste making machine is fluidly connected to the collection tank through a second pipeline, and the second pipeline is used to obtain the pulp water in the collection tank to prepare starch paste. The pulp water recovery system can recycle a large amount of waste pulp generated by cleaning the paperboard production line machine to generate starch paste, and the waste pulp is no longer treated as garbage after drying, which is more environmentally friendly, and at the same time saves raw materials for making starch paste, fully and effectively utilizes resources, and reduces production costs.

Description

Technical Field

[0001] The invention relates to the technical field of papermaking, and in particular to a pulp water recovery system. Background Art

[0002] As we all know, in the packaging field of various industries, corrugated cardboard is the most basic and most widely used packaging material. It is generally inexpensive and is made of more than three layers of corrugated paper stacked on top of each other. It has the advantages of being strong and durable, having high tensile strength, and not easy to break, so it has been widely used. However, during the production process of corrugated cardboard, there will be some residues on the production machines of the cardboard production line. It is necessary to stop the machine and use a large amount of water to clean the production machine to remove the residues, thereby preventing the residues from affecting the production process and production quality of the corrugated cardboard.

[0003] A large amount of waste pulp is generated during the cleaning process. In the prior art, the waste pulp is usually collected and dried and then processed by the sanitation department, which directly turns the waste into garbage. Improper garbage disposal causes environmental pollution. At the same time, since the main components of the waste pulp are starch, paste, water, etc., directly discarding it causes a waste of resources. Therefore, a device is urgently needed to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a pulp water recovery system to solve the problem of waste pollution and waste of resources caused by waste pulp treatment.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A slurry water recovery system, comprising:

[0007] A waste pulp tank, which is connected to the sewage outlet of the paperboard production line machine and is used to store waste pulp;

[0008] A filter tank, which is in fluid communication with the waste pulp tank, wherein a filter screen is detachably disposed in the filter tank, and the filter screen is used to filter the waste pulp flowing out of the waste pulp tank to obtain pulp water;

[0009] a collection tank in fluid communication with the filtration tank via a first conduit; and

[0010] The paste maker is in fluid communication with the collecting tank via a second pipe, wherein the second pipe is used to obtain the slurry in the collecting tank to prepare starch paste.

[0011] The pulp water recovery system can be used to recycle a large amount of waste pulp generated by the cardboard production line cleaning machine into starch paste. The waste pulp is no longer treated as garbage after drying, which is more environmentally friendly. At the same time, it saves raw materials for making starch paste, fully and effectively utilizes resources, and reduces production costs.

[0012] Preferably, the first pipeline is provided with a sewage pump.

[0013] Preferably, the second pipeline is provided with a diaphragm pump.

[0014] Preferably, a stirrer is provided in the collection tank, one end of the stirrer is detachably connected to the output shaft of the motor, and the other end of the stirrer is provided with a stirring blade.

[0015] Preferably, there are two stirring blades.

[0016] Preferably, an equipment installation foundation is provided at the top of the collection tank, and the diaphragm pump and the stirrer are both arranged on the equipment installation foundation.

[0017] Preferably, the paste maker is an automatic paste maker.

[0018] Preferably, the raw materials for preparing the starch paste also include water, cassava starch, liquid alkali, borax and starch stabilizer. The ratio of the raw materials of the starch paste is 550Kg water: 500Kg slurry water: 350Kg cassava starch: 45Kg liquid alkali: 4Kg borax: 13Kg starch stabilizer, and the concentration of the liquid alkali is 18%.

[0019] The beneficial effects of the present invention are as follows: a large amount of waste pulp generated by a cardboard production line cleaning machine is recycled and reused to generate starch paste through a pulp water recovery system, and the waste pulp is no longer treated as garbage after being dried in the sun, which is more environmentally friendly. At the same time, raw materials for making starch paste are saved, resources are fully and effectively utilized, and production costs are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a top view of the filter tank provided by the slurry water recovery system of the present invention;

[0021] Figure 2 yes Figure 1 The cross-section along line AA in the middle;

[0022] Figure 3 It is a structural schematic diagram of the collection pool provided by the slurry water recovery system of the present invention.

[0023] In the figure:

[0024] 1. Filter tank; 11. Filter screen; 2. Waste slurry tank; 3. Collection tank; 31. Equipment installation foundation; 32. Mixer; 321. Mixing blades; 4. First pipeline; 5. Second pipeline; 6. Diaphragm pump. DETAILED DESCRIPTION

[0025] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0026] The present embodiment provides a pulp water recovery system, which includes a waste pulp tank 2, a filter tank 1, a collection tank 3 and a paste making machine. The waste pulp tank 2 is connected to the sewage outlet of the cardboard production line machine. The waste pulp generated when cleaning the cardboard production line machine is discharged from the sewage outlet and flows into the waste pulp tank 2.

[0027] like Figure 1 and Figure 2 As shown, the filter tank 1 is in fluid communication with the waste slurry tank 2. Figure 2 As shown, a filter screen 11 is detachably provided in the filter tank 1. The waste slurry in the waste slurry tank 2 flows into the filter tank 1 and is filtered through the filter screen 11 to obtain slurry water. The filter screen 11 is detachably provided, and the waste residue remaining on the filter screen 11 can be cleaned by disassembling the filter screen 11.

[0028] like Figure 3 As shown, a first pipe 4 in fluid communication with the filter pool 1 is provided at the edge of the collection pool 3, and a sewage pump (not shown in the figure) is provided on the first pipe 4. The sewage pump is used to transport the slurry from the filter pool 1 to the collection pool 3 through the first pipe 4. An equipment installation base 31 is provided at the top of the collection pool 3, and a second pipe 5 is provided near the edge of the collection pool 3. A diaphragm pump 6 is provided on the second pipe 5. The diaphragm pump 6 is installed on the equipment installation base 31. The diaphragm pump 6 is used to transport the slurry from the collection pool 3 to the paste maker through the second pipe 5, and then the paste maker makes starch paste. In order to prevent the slurry in the collection pool 3 from settling and agglomerating, a stirrer 32 is provided in the collection pool 3. The stirrer 32 is installed on the equipment installation base 31 and is located at the center of the collection pool 3. One end of the stirrer 32 is detachably connected to the output shaft of the motor, and the other end is provided with a stirring blade 321. Preferably, the stirrer 32 is provided with two stirring blades 321, and the two stirring blades 321 are arranged at intervals. The two stirring blades 321 can stir the slurry more evenly and make the stirring effect better.

[0029] In this embodiment, the paste making machine is preferably an automatic paste making machine, which is fluidly connected to the second pipe 5. The automatic paste making machine will make starch paste according to a certain ratio of raw materials, and the raw materials for preparing starch paste include water, slurry, cassava starch, liquid alkali, borax and starch stabilizer, etc. The ratio of the raw materials of starch paste is 550Kg water: 500Kg slurry: 350Kg cassava starch: 45Kg liquid alkali: 4Kg borax: 13Kg starch stabilizer, wherein the concentration of the liquid alkali used is 18%.

[0030] The pulp water recovery process is as follows: a large amount of waste pulp is generated by the machine for cleaning the cardboard production line. The waste pulp is discharged from the sewage outlet of the machine of the cardboard production line into the waste pulp tank 2, and the waste pulp flows into the filter tank 1 through the waste pulp tank 2; the filter screen 11 in the filter tank 1 filters the waste pulp, filters out large pieces of waste residue, and obtains pulp water; the pulp water is transported from the filter tank 1 to the collection tank 3 through the first pipeline 4 by the sewage pump, so that the pulp water is collected in the collection tank 3 and used as a raw material for preparing starch paste. The stirrer 32 in the collection tank 3 continuously stirs the pulp water to prevent the pulp water from settling and agglomerating; the diaphragm pump 6 continuously transports the pulp water in the collection tank 3 to the automatic paste making machine through the second pipeline 5. The automatic paste making machine makes starch paste with the pulp water and other raw materials according to a certain ratio. The starch paste is diverted by the tap water pipe and the beater to each production line for use in bonding the cardboard.

[0031] The applicant declares that the present invention is exemplarily described through the above-mentioned implementation methods. Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A slurry water recovery system, characterized in that: include: A waste pulp tank (2) connected to a sewage outlet of a paperboard production line machine and used for storing waste pulp. Waste pulp generated when cleaning the paperboard production line machine is discharged from the sewage outlet and flows into the waste pulp tank (2); A filter tank (1) which is in fluid communication with the waste pulp tank (2), wherein a filter screen (11) is detachably arranged in the filter tank (1), and the filter screen (11) is used to filter the waste pulp flowing out of the waste pulp tank (2) to obtain pulp water; A collecting tank (3) which is in fluid communication with the filtering tank (1) via a first pipe (4); and A paste making machine, which is in fluid communication with the collecting tank (3) via a second pipe (5), wherein the second pipe (5) is used to obtain the slurry in the collecting tank (3) to prepare starch paste; The second pipeline (5) is provided with a diaphragm pump (6); A stirrer (32) is arranged in the collection tank (3); one end of the stirrer (32) is detachably connected to the output shaft of the motor, and the other end is provided with a stirring blade (321); The raw materials for preparing the starch paste also include water, cassava starch, liquid alkali, borax and starch stabilizer. The ratio of the raw materials of the starch paste is 550Kg water: 500Kg slurry water: 350Kg cassava starch: 45Kg liquid alkali: 4Kg borax: 13Kg starch stabilizer, and the concentration of the liquid alkali is 18%.

2. The slurry water recovery system according to claim 1, characterized in that: The first pipeline (4) is provided with a sewage pump.

3. The slurry water recovery system according to claim 1, characterized in that: There are two stirring blades (321).

4. The slurry water recovery system according to claim 1, characterized in that: An equipment installation base (31) is provided at the top of the collection tank (3), and the diaphragm pump (6) and the stirrer (32) are both provided on the equipment installation base (31).

5. The slurry water recovery system according to claim 1 or 2, characterized in that: The paste making machine is an automatic paste making machine.

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