Slurry circulating system

Abstract

The utility model relates to the technical field of slurry circulation, and provides a slurry circulation system which comprises a biological pretreatment device, a pulping machine main body is arranged on the outer side wall of the biological pretreatment device, a pipeline on the outer side of the pulping machine main body is communicated with a high-concentration pulping machine, and the high-concentration pulping machine is used for increasing the concentration of slurry conveyed by the pulping machine main body. The outer side of the high-concentration pulping machine is connected with a chemical pool through a pipeline, the outer side of the chemical pool is provided with a puffing pool, and the puffing pool is connected with the pulp mixing pool through a pipeline to convey pulp to the pulp mixing pool; the pulp mixing tank is used for adjusting the concentration and the temperature of the paper pulp, and a water outlet at an outlet of the pulp mixing tank is connected with a paper pulp deinking tank: the fiber structure is improved through biomass pretreatment, so that the subsequent pulping is more efficient. Fiber separation is carried out in the pulping machine by adopting an efficient grinding technology, so that the pulping efficiency is further improved. And automatic quality control detection ensures the stability of paper pulp quality.

Description

Technical Field

[0001] The utility model relates to the technical field of mud circulation, in particular to a mud circulation system. Background Art

[0002] Papermaking pulp recycling is an important process dedicated to resource recycling and environmental protection. It includes the recovery and classification of paper waste, treatment, production of recycled pulp, and recycling of pulp. Through this series of steps, it can not only effectively reduce the consumption of virgin wood and reduce the deforestation rate, but also reduce waste and greenhouse gas emissions, thus making a positive contribution to environmental protection.

[0003] With the continuous development of pulping technology, the traditional pulping process has gradually exposed problems such as low efficiency, high resource consumption, and serious environmental pollution.

[0004] In the traditional pulping process, the raw materials are directly fed into the pulping machine for fiber separation, but this method often results in poor fiber separation and low pulping efficiency. At the same time, there are also major problems in the treatment of waste pulp and wastewater in the traditional pulping process, which not only wastes resources but also pollutes the environment.

[0005] To this end, those skilled in the art have proposed a mud circulation system to solve the problems raised in the background art. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a mud circulation system to solve the problems of low pulping efficiency, large resource consumption, environmental pollution, etc. in the prior art pulping process.

[0007] A slurry circulation system comprises a biological pretreatment device, wherein a pulping machine body is arranged on the outer side wall of the biological pretreatment device, a high-concentration pulping machine is connected to the pipeline outside the pulping machine body, the high-concentration pulping machine is used to increase the concentration of the pulp transmitted by the pulping machine body, the outer side of the high-concentration pulping machine is connected to a chemical tank through a pipeline, a puffing tank is installed on the outer side of the chemical tank, the puffing tank is connected to a pulping tank through a pipeline to transport the pulp to the pulping tank, the pulping tank is used to adjust the concentration and temperature of paper pulp, the drainage port at the outlet of the pulping tank is connected to a pulp deinking tank, the water outlet pipe outside the pulp deinking tank is installed with a pulp storage tank, the outer side of the pulp storage tank is installed with an automatic quality detector, the automatic quality detector is used to detect the pulp quality.

[0008] Preferably, the pulp that passes the test of the automated quality detector is directly discharged, and the pulp that fails the test of the automated quality detector enters a pulp re-slurry tank, which collects waste pulp in the production process.

[0009] Preferably, one end of the re-slurry pool is connected to a circulation pool, which processes the waste slurry and screens it. The screened and purified slurry in the circulation pool flows back into the biological pretreatment device, and the remaining wastewater in the re-slurry pool enters the mud-water separation station through the recovery pool for separation and reuse.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. Improve pulping efficiency and quality: Improve fiber structure through biomass pretreatment, making subsequent pulping more efficient. Use efficient grinding technology to separate fibers in the pulping machine, further improving pulping efficiency. Automated quality control testing ensures the stability of pulp quality.

[0012] 2. Energy saving and environmental protection: High-concentration pulping technology increases pulp concentration, which not only increases production capacity but also reduces energy consumption, which is conducive to energy conservation and emission reduction. The closed pulping system reduces the discharge of wastewater and exhaust gas, and is more environmentally friendly. Energy-saving and resource recovery measures, such as optimizing equipment operation time, using high-efficiency energy-saving equipment, and recycling and reusing water resources, further reduce energy consumption and water waste.

[0013] 3. Maximize resource utilization: The waste pulp recycling technology allows unqualified pulp to be recycled and reintroduced into the production process, reducing resource waste. The setting of the pulp return pool allows the recyclable pulp to be effectively utilized in the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0015] In the figure: 1. Biological pretreatment device; 2. Pulping machine main body; 3. High-concentration pulping machine; 4. Chemical tank; 5. Puffing tank; 6. Pulp adjustment tank; 7. Pulp deinking tank; 8. Pulp storage tank; 9. Automatic quality inspection instrument; 10. Pulp return tank; 11. Circulation tank; 12. Recovery tank. DETAILED DESCRIPTION

[0016] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0017] As attached Figure 1 As shown:

[0018] Embodiment 1: The utility model provides a mud circulation system, including a biological pretreatment device 1, a pulping machine body 2 is arranged on the outer wall of the biological pretreatment device 1, a high-concentration pulping machine 3 is connected to the pipeline outside the pulping machine body 2, the high-concentration pulping machine 3 is used to increase the concentration of the pulp transmitted by the pulping machine body 2, the outer side of the high-concentration pulping machine 3 is connected to a chemical tank 4 through a pipeline, a puffing tank 5 is installed on the outer side of the chemical tank 4, the puffing tank 5 is connected to a pulping tank 6 through a pipeline to transport the pulp to the pulping tank 6, the pulping tank 6 is used to adjust the concentration and temperature of the pulp, the drainage port at the outlet of the pulping tank 6 is connected to a pulp deinking tank 7, the water outlet pipe outside the pulp deinking tank 7 is installed with a pulp storage tank 8, the outer side of the pulp storage tank 8 is installed with an automatic quality detector 9, the automatic quality detector 9 is used to detect the quality of the pulp.

[0019] Specifically, the pulp deinking technology effectively removes ink contamination and improves the purity of the pulp.

[0020] The slurry that passes the test of the automated quality detector 9 is directly discharged, and the slurry that fails the test of the automated quality detector 9 enters a re-slurry tank 10, which collects waste slurry in the production process. One end of the re-slurry tank 10 is connected to a circulation tank 11, which processes the waste slurry and screens it. The screened and purified slurry in the circulation tank 11 flows back into the biological pretreatment device 1, and the remaining wastewater in the re-slurry tank 10 enters a mud-water separation station through a recovery tank 12 for separation and reuse.

[0021] Specifically, the recovery tank 12 processes the wastewater, further reducing the discharge of solid particles and pollutants.

[0022] As can be seen from the above, the raw materials are first subjected to biological pretreatment device 1, and the fiber structure is improved by heat treatment or chemical treatment, and then sent to the pulping machine body 2 for efficient grinding to achieve fiber separation. In the pulping process, a high-concentration pulping machine 3 is used to increase production capacity and reduce energy consumption. Subsequently, the pulp enters the chemical tank 4 to add necessary reagents for adjustment, and then passes through the puffing tank 5 to improve physical properties and processability. After that, the pulp is fine-tuned in the pulping tank 6, and if it contains printing ink, it enters the pulp deinking tank 7. The adjusted pulp is stored in the pulp storage tank 8 for subsequent use, and passes through the automatic quality inspection instrument 9 to ensure stable quality. At the same time, the recyclable pulp is collected in the re-slurry tank 10, and the unqualified pulp can be partially recycled and reused after passing through the circulation tank 11. The entire pulping process is carried out in a closed system to ensure environmental protection. In addition, wastewater can be recycled through the recycling tank 12, achieving resource conservation and cost control. This process is designed to produce pulp efficiently, environmentally friendly and resource-saving to meet the needs of the modern papermaking industry.

[0023] In the description of the present utility model, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. The meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0026] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless there is a contradiction.

[0027] In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A mud circulation system, characterized in that: The invention comprises a biological pretreatment device (1), wherein the outer wall of the biological pretreatment device (1) is provided with a pulping machine body (2), the outer side of the pulping machine body (2) is connected to a high-concentration pulping machine (3) through a pipeline, the high-concentration pulping machine (3) is used to increase the concentration of pulp transmitted by the pulping machine body (2), the outer side of the high-concentration pulping machine (3) is connected to a chemical tank (4) through a pipeline, the outer side of the chemical tank (4) is provided with a puffing tank (5), the puffing tank (5) is connected to a pulping tank (6) through a pipeline to transport pulp to the pulping tank (6), the pulping tank (6) is used to adjust the concentration and temperature of paper pulp, the drainage port at the outlet of the pulping tank (6) is connected to a pulp deinking tank (7), the water outlet pipe outside the pulp deinking tank (7) is provided with a pulp storage tank (8), the outer side of the pulp storage tank (8) is provided with an automatic quality detector (9), the automatic quality detector (9) is used to detect the quality of pulp.

2. A mud circulation system as claimed in claim 1, characterized in that: The pulp that passes the test of the automatic quality detector (9) is directly discharged, and the pulp that fails the test of the automatic quality detector (9) enters the pulp recycle tank (10), and the pulp recycle tank (10) collects the waste pulp in the production process.

3. A mud circulation system as claimed in claim 2, characterized in that: One end of the re-slurry tank (10) is connected to a circulation tank (11), and the circulation tank (11) processes waste slurry and screens it. The slurry screened and purified by the circulation tank (11) flows back into the biological pretreatment device (1), and the remaining wastewater in the re-slurry tank (10) enters a mud-water separation station through a recovery tank (12) for separation and reuse.

Images