Self-circulation stirring and homogenizing pulp return-free forming pulp chest with pump

Abstract

According to the scheme, the self-circulation stirring homogenizing non-return forming pulp chest with the pump comprises a pulp chest body, the pulp chest body is provided with a pulp inlet and a circulation liquid inlet, and the pulp inlet is connected into a pulp source; one end of the circulating pipeline is connected with the circulating liquid inlet, the other end of the circulating pipeline is connected with the pump body, and a circulating control valve is arranged between the pump body and the circulating liquid inlet; the circulating tank body is communicated with the pulp chest; the pump body is arranged in the circulating tank body; the overflow pulp backflow port is located on the inner side of the top of the pulp tank and used for recycling pulp. Energy waste can be remarkably reduced, and slurry in the slurry tank is prevented from precipitating.

Description

Technical Field

[0001] The present application relates to the field of manufacturing pulp molded products, and in particular to a pulp forming tank with a pump for self-circulating stirring and homogenizing pulp without back-pulping. Background Art

[0002] The manufacturing process of plant fiber molded products is as follows: the plant fiber is firstly subjected to suction filtration molding in a suction filtration molding device to form a wet blank of the product, and the wet blank is sent to a hot pressing mold of a hot pressing molding device, the hot pressing mold is closed and the wet blank is hot pressed, dried and molded to form plant fiber molded products of various shapes.

[0003] The slurry pool of the common production equipment at present is always filled with slurry, and the excess slurry overflows directly back to the slurry source (large slurry pool) through the return slurry pipe, thus forming a large cycle, thereby preventing the slurry from settling. However, this method will produce useless return slurry circulation, and the pump used for slurry feeding has a large power and needs to run all the time, resulting in high overall energy consumption and waste. At the same time, the layout of the return slurry pipeline takes up more space, which also increases the equipment cost.

[0004] Therefore, there is an urgent need for a self-circulating stirring and homogenizing slurry tank with a pump without back-pulping, which can significantly reduce energy consumption and further reduce costs. Utility Model Content

[0005] The purpose of the present application is to provide a pulp forming tank with a pump for self-circulating stirring and homogenizing pulp without back-pulping in order to solve the above-mentioned problems existing in the prior art.

[0006] In order to achieve the above application purpose, the present application adopts the following technical scheme: a self-circulating stirring and homogenizing slurry forming tank with a pump and no back-pulping includes:

[0007] The slurry pool is provided with a slurry inlet and a circulating liquid inlet, and the slurry inlet is connected to a slurry source;

[0008] A circulation pipeline, one end of which is connected to the circulation liquid inlet, and the other end is connected to the pump body, and a circulation control valve is provided between the pump body and the circulation liquid inlet;

[0009] The circulation tank is connected with the pulp pool;

[0010] The pump body is arranged in the circulation tank;

[0011] The overflow return port is located on the inner side of the top of the slurry pool and is used to recover the slurry.

[0012] Furthermore, a pulp recovery tank is provided in the overflow reflux port.

[0013] Furthermore, a pulp return pump is provided in the overflow return port, through which the pulp in the pulp recovery tank is pumped back into the pulp pool.

[0014] Furthermore, a liquid level meter is provided in the pulp recovery tank for detecting the pulp liquid level in the pulp recovery tank.

[0015] Furthermore, a slurry inlet control valve and a sewage outlet are provided on the pipeline connected to the slurry inlet.

[0016] Furthermore, the slurry inlet and the circulating liquid inlet are symmetrically arranged.

[0017] Furthermore, the slurry inlet and the circulating liquid inlet are both located at the bottom of the slurry pool.

[0018] Furthermore, the side of the circulation tank is connected to the side of the pulp pool.

[0019] Furthermore, the top opening of the pulp pool is open.

[0020] Compared with the prior art, this application has the following beneficial effects:

[0021] 1. Significantly reduce energy consumption: Abandoning the traditional large-scale circulation system, adopting the self-circulation stirring and homogenizing method (when the slurry suction mold of the equipment is not sucking, a small circulation system can be formed between the slurry pool, the circulation pipeline and the circulation tank, which can effectively prevent the slurry in the slurry pool and the circulation tank from settling), avoiding unnecessary reflux slurry circulation, greatly reducing the operation time and power demand of the pump, thereby significantly reducing the overall energy consumption and realizing the effective use of energy.

[0022] 2. Reduce equipment costs and space occupation: The arrangement of the return slurry pipeline is cancelled, which not only reduces material and installation costs, but also saves valuable production space, makes the equipment layout more compact and reasonable, and improves the utilization efficiency of the factory.

[0023] 3. Improve the quality of slurry: Through the design of the pump body and the circulation tank, the slurry is evenly stirred, which effectively prevents the precipitation of the slurry and ensures the consistency and stability of the slurry during the suction filtration molding process, thereby improving the quality of the final plant fiber molded products.

[0024] 4. Intelligent management: The introduction of intelligent components such as liquid level meters and circulation control valves can monitor and regulate the slurry status in the slurry pool in real time, realize automatic management and operation, reduce manual intervention, and improve production efficiency and safety.

[0025] 5. Simplify the maintenance process: The utility model has a simple structural design, which is convenient for daily cleaning and maintenance, reduces maintenance costs and downtime, and ensures the continuity and stability of production.

[0026] To sum up, the utility model's self-circulating stirring and homogenizing slurry tank with pump and no back-pulping has obvious advantages in energy conservation and emission reduction, cost control, product quality improvement and intelligent management, and is of great significance for promoting the green and sustainable development of the plant fiber molding products industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of this application;

[0028] Figure 2 This is a practical application diagram of this application.

[0029] In the figure, 1. slurry pool; 2. liquid level meter; 3. slurry inlet control valve; 4. sewage discharge control valve; 5. circulation pipeline; 6. pump body; 7. circulation tank body; 8. production equipment; 11. slurry inlet; 12. circulation liquid inlet; 13. overflow reflux port; 51. circulation control valve. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0031] Those skilled in the art should understand that, in the disclosure of the present application, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present application.

[0032] like Figure 1-2 As shown in the figure, the self-circulating stirring and homogenizing slurry tank with pump and no back-pulping includes:

[0033] The pulp pool 1 has an open top opening, and is provided with a pulp inlet 11 and a circulating liquid inlet 12 at the bottom. The pulp inlet 11 is connected to a pulp source; as the basis of the entire production equipment 8, the pulp pool 1 stores slurry (pulp) for preparing pulp molding, and provides raw materials for subsequent processes. The pipeline connected to the pulp inlet 11 is provided with a pulp inlet control valve 3 and a sewage outlet, and the sewage outlet is provided with a normally closed sewage control valve 4. The pulp inlet 11 and the circulating liquid inlet 12 are symmetrically arranged.

[0034] The circulation pipeline 5 has one end connected to the circulation liquid inlet 12 and the other end connected to the pump body 6, and a circulation control valve 51 is provided between the pump body 6 and the circulation liquid inlet 12;

[0035] The circulation tank 7 has a side connected to the side of the pulp pool 1;

[0036] A pump body 6 is arranged in a circulation tank body 7;

[0037] The overflow return port 13 is located on the inner side of the top of the slurry pool 1 and is used to recover the slurry.

[0038] Preferably, a pulp recovery tank and a pulp return pump are provided in the overflow return port 13 , and the pulp in the pulp recovery tank is pumped back into the pulp pool 1 through the pulp return pump.

[0039] Preferably, a level meter 2 is provided in the pulp recovery tank for detecting the level of the pulp in the pulp recovery tank or is installed in the pulp pool 1 for detecting the level of the pulp in the pulp pool 1 .

[0040] In this embodiment, if Figure 1 As shown, when the slurry suction mold of the production equipment 8 (pulp molding manufacturing equipment) is not pumping, the slurry inlet control valve 3 is closed, and the circulation control valve 51 and the pump body 6 are opened. At this time, a small circulation system is formed among the slurry pool 1, the circulation pipeline 5, and the circulation tank body 7, which can effectively prevent the slurry in the slurry pool 1 and the circulation tank body 7 from settling. That is, when the slurry suction mold is not pumping, there is no need to continuously supply slurry, which reduces energy waste (the pump body 6 has a much smaller power than the high-power pump of the slurry source). When the slurry suction mold is pumping, due to the increase in slurry demand, the slurry inlet control valve 3 needs to be opened to supplement the slurry, which may cause slurry overflow, and the overflow reflux port 13 behind is used.

[0041] In this embodiment, the following methods can be used to deal with the overflow:

[0042] 1. Open the pulp inlet control valve 3 (the sewage control valve 4 is normally closed), and the pulp is injected into the pulp pool 1 from the pulp inlet 11 and the circulating pulp inlet 11 at the same time under the action of the pulp inlet pump;

[0043] 2. At intervals, the pulp inlet control valve 3 is closed, and the pulp in the pulp pool 1 is drawn out from the circulating pulp inlet 11 by the pulp inlet pump, and then re-injected into the pulp pool 1 from the pulp inlet 11, and the cycle continues (to prevent pulp sedimentation and ensure uniform pulp concentration in the pulp pool 1);

[0044] 3. The pulp suction mold is immersed in the pulp pool 1, and the pulp in the pulp pool 1 will overflow into the pulp recovery tank;

[0045] 4. At regular intervals, the level meter 2 detects that the pulp level in the pulp recovery tank has reached a specified position, and the pulp return pump is started to re-inject the pulp in the overflow return port 13 into the pulp pool 1, and the cycle continues (overflow pulp recovery);

[0046] 5. When the pulp pool 1 needs to be cleaned, close the pulp inlet control valve 3, open the sewage control valve 4, and the pulp wastewater in the pulp pool 1 is discharged from the sewage outlet.

[0047] Another method is to not set up a return pump and directly let the pulp return from the pulp recovery tank. In this case, the liquid level meter 2 is installed in the pulp pool 1 to detect the liquid level of the pulp pool 1. When the liquid level of the pulp 1 is high, the pulp inlet control valve 3 is controlled to be closed, and when the liquid level of the pulp pool 1 is low, the pulp inlet control valve 3 is controlled to be opened.

[0048] The parts not described in detail in this application are prior art, so this application does not describe them in detail.

[0049] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0050] Although this article uses more terms such as pulp pool 1, liquid level meter 2, pulp inlet control valve 3, sewage control valve 4, circulation pipeline 5, pump body 6, circulation tank 7, production equipment 8, pulp inlet 11, circulation liquid inlet 12, overflow reflux port 13, circulation control valve 51, etc., it does not exclude the possibility of using other terms. The use of these terms is only for more convenient description and explanation of the essence of this application; interpreting them as any additional restrictions is contrary to the spirit of this application.

[0051] The present application is not limited to the above-mentioned optimal implementation mode. Anyone can derive other forms of products under the inspiration of this application. However, no matter what changes are made in the shape or structure, all technical solutions that are the same or similar to those of the present application fall within the protection scope of the present application.

Claims

1. Self-circulating stirring and homogenizing slurry tank with pump without back-pulping, characterized in that: include: A slurry pool, provided with a slurry inlet and a circulating liquid inlet, wherein the slurry inlet is connected to a slurry source; A circulation pipeline, one end of which is connected to the circulation liquid inlet, and the other end of which is connected to the pump body, and a circulation control valve is provided between the pump body and the circulation liquid inlet; A circulation tank body, connected to the slurry pool; A pump body, arranged in the circulation tank; The overflow return port is located on the inner side of the top of the slurry pool and is used to recover the slurry.

2. The self-circulating stirring and homogenizing pulping tank without back-pulping with a pump according to claim 1 is characterized in that: A pulp recovery tank is arranged in the overflow reflux port.

3. The self-circulating stirring and homogenizing pulping tank without back-pulping according to claim 2 is characterized in that: A pulp return pump is also provided in the overflow return port, through which the pulp in the pulp recovery tank is pumped back into the pulp pool.

4. The self-circulating stirring and homogenizing slurry forming tank with pump according to claim 3 is characterized in that: A liquid level meter is arranged in the pulp recovery tank for detecting the pulp liquid level in the pulp recovery tank.

5. The self-circulating stirring and homogenizing pulping tank without back-pulping with a pump according to claim 1 is characterized in that: A slurry inlet control valve and a sewage outlet are arranged on the pipeline connected to the slurry inlet.

6. The self-circulating stirring and homogenizing pulping tank without back-pulping with a pump according to claim 1 is characterized in that: The slurry inlet and the circulating liquid inlet are symmetrically arranged.

7. The self-circulating stirring and homogenizing pulping tank without back-pulping with a pump according to claim 1 is characterized in that: The slurry inlet and the circulating liquid inlet are both located at the bottom of the slurry pool.

8. The self-circulating stirring and homogenizing pulping tank without back-pulping according to claim 1 is characterized in that: The side of the circulation tank is communicated with the side of the pulp pool.

9. The self-circulating stirring and homogenizing pulping tank without back-pulping with a pump according to any one of claims 1 to 8, characterized in that: The top opening of the pulp pool is open.

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