Movable neutralizer storage system for continuous neutralization process

Abstract

The utility model relates to the field of chemical production equipment, and discloses a movable neutralizer storage system for a continuous neutralization process, which comprises a neutralizer storage tank and a material storage tank which are connected through a pipeline to form circulation; brake universal wheels are arranged at the bottom of the neutralizer storage tank, and a handle is arranged outside the neutralizer storage tank to facilitate movement; a filter screen bag is arranged in the middle storage tank, a neutralizing agent is arranged in the filter screen bag, the neutralizing effect can be enhanced, unsmooth liquid discharging caused by hardening of the neutralizing agent can be avoided through all-directional liquid discharging, and meanwhile the liquid conveying efficiency can be improved by primarily filtering the neutralizing agent; a first porous partition plate is arranged between the neutralizer storage tank and the top cover, and a second porous partition plate is arranged between the neutralizer storage tank and the bottom cover, so that a neutralizer filter screen bag is supported, the filler column is convenient to form, and potential safety hazards such as pipeline blockage caused by damage of the filter screen bag and leakage of a neutralizer can be avoided; and a filter membrane is arranged above the first porous partition plate, so that the neutralized material can be filtered for three times.

Description

Technical Field

[0001] The utility model relates to the field of chemical production equipment, in particular to a mobile neutralizing agent storage system for a continuous neutralization process. Background Art

[0002] In the production and processing of silicone oil, there are mainly three reactions involved: telomerization reaction, hydrosilylation reaction, and condensation reaction. Among them, telomerization reaction is a very important and common reaction type in the production process of silicone oil. It is often necessary to catalyze the telomerization reaction with acid or base, and then neutralize the added acid or alkaline catalyst to remove the catalyst to terminate the reaction, and finally filter the salt produced after neutralization.

[0003] There are two common methods for existing neutralization and filtration processes.

[0004] Method 1 is to add the neutralizer to the reactor containing the material to be neutralized for intermittent stirring reaction. The materials in the intermittent neutralization reaction are more uniform and the contact is more sufficient, so the neutralization time is short and the effect is good. However, the intermittent reaction has safety hazards in the entry and exit of materials, especially for low-flash point silicone oil. The intermittent operation is a semi-open reaction. The slag process after neutralization is prone to cause fire. Therefore, the intermittent neutralization process is subject to many application restrictions.

[0005] The second method is a continuous neutralization process, that is, the neutralizer is placed in an intermediate storage tank, and the material is circulated through the intermediate storage tank where the neutralizer is placed through a material pump for a cyclic neutralization reaction. The closed circulation process improves the safety of the production process and is highly praised by the industry. However, the existing closed-loop circulation neutralization process still has many shortcomings. For example, the solid neutralizer will agglomerate due to the generated water after neutralization, resulting in blockage in material transportation and seriously reducing the neutralization efficiency. The blockage pressure poses a safety hazard of pipe bursting and material leakage. For example, after neutralization, the replacement of the neutralizer requires continuous manual on-site removal of the neutralization material residue. On-site operations not only affect the neutralization efficiency but also pose a safety hazard of material exposure. Summary of the invention

[0006] The utility model aims at the deficiencies of the prior art and provides a mobile neutralizing agent storage system for a continuous neutralization process.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0008] A mobile neutralizer storage system for a continuous neutralization process, the neutralizer storage system comprising a neutralizer storage tank and a material storage tank, the two being connected in a loop through a pipeline;

[0009] The neutralizer storage tank comprises a top cover, a middle storage tank and a bottom cover, the bottom of the bottom cover is provided with a brake universal wheel, and the outside of the middle storage tank is provided with a handle;

[0010] A filter bag is arranged in the middle storage tank, the neutralizer is arranged in the filter bag, a first porous partition is arranged between the neutralizer storage tank and the top cover, and a second porous partition is arranged between the neutralizer storage tank and the bottom cover; a filter membrane is arranged above the first porous partition;

[0011] A discharge port is arranged above the top cover and is connected to a feed port above the material storage tank through a pipeline; a feed port is arranged below the bottom cover and is connected to a discharge port below the material storage tank through a pipeline.

[0012] The setting of brake universal wheels and handles makes it easy for operators to move the container, which is convenient and quick.

[0013] By using filter bags to bind the neutralizer, the neutralizer can be initially filtered to prevent the neutralizer from dispersing outside the neutralizer storage tank and causing safety hazards such as pipe blockage. At the same time, the filter bags can be used as filler columns to discharge liquid in all directions, reducing problems such as compaction, hardening, and difficulty in discharging of the neutralizer, so that the material and the neutralizer can fully circulate in contact, thereby improving safety and circulation efficiency.

[0014] The partition has many functions. The first porous partition can not only support the pressure generated when the liquid flows through the neutralizer from bottom to top, but also filter the neutralizer twice to prevent the neutralizer filter bag from deforming and breaking, causing the neutralizer to overflow upward and block the pipeline. The purpose of the second porous partition is to support the neutralizer filter bag and prevent the filter bag from overflowing downward due to gravity damage and blocking the feed pipeline and feed pump. In addition, the porous design can make the material liquid evenly distributed to avoid excessive local pressure and incomplete neutralization.

[0015] The purpose of setting up the filter membrane is to filter the neutralized material three times to prevent the neutralizer from overflowing into the pipeline and causing blockage, and to prevent the product from containing mechanical impurities such as the neutralizer.

[0016] Preferably, the filter bag is a plastic mesh bag, a stainless steel mesh bag or a nylon mesh bag.

[0017] Preferably, the filter bag has a mesh size of less than 1000 meshes, and preferably, the filter bag has a mesh size of 500-900 meshes.

[0018] Preferably, the apertures of the first porous partition and the second porous partition are less than 200 mesh, preferably, the apertures are 50-100 mesh; the total area of ​​the holes accounts for less than 1 / 2 of the area of ​​the porous partition.

[0019] Preferably, the filter membrane is made of polyethersulfone, nylon, mixed cellulose, polytetrafluoroethylene, polyvinylidene fluoride, polypropylene, glass fiber or acetate fiber.

[0020] Preferably, the filter membrane particle size is less than 10000 mesh, preferably, the filter membrane particle size is 5000-9000 mesh.

[0021] Preferably, the first porous partition, the second porous partition and the filter membrane are all detachable.

[0022] Preferably, a first sampling port is provided above the top cover.

[0023] Preferably, a second sampling port is provided at the bottom of the material storage tank.

[0024] The setting of the sampling port facilitates sampling for testing, ensures product quality and makes timely judgments on the cycle endpoint and the neutralization effect of the neutralizer.

[0025] Preferably, a pump is provided on the pipeline between the neutralizer storage tank and the material storage tank.

[0026] The beneficial effects of the utility model are:

[0027] 1. The movable neutralization storage tank of the utility model can be moved to a safe place for neutralization agent replacement, which has a higher safety factor.

[0028] 2. The utility model has a movable neutralization storage tank. After the neutralizer becomes ineffective, it only needs to switch to a new neutralizer storage tank to continue the operation. It is convenient and fast and does not affect the production efficiency.

[0029] 3. The top of the movable neutralization storage tank of the utility model is provided with a sampling port, which is convenient for taking samples for testing, ensuring product quality and making timely judgments on the cycle endpoint and the neutralization effect of the neutralizer.

[0030] 4. The neutralizer in the movable neutralization storage tank of the utility model is bound by a filter bag to form a packing column to enhance the neutralization effect, and the omnidirectional liquid discharge can avoid the poor liquid discharge caused by the neutralizer caking, and the initial filtration of the neutralizer can improve the infusion efficiency.

[0031] 5. The utility model storage device is provided with porous partitions on the upper and lower sides to support the neutralizer filter bag, facilitate the forming of the packing column, and avoid safety hazards such as damage to the filter bag and leakage of the neutralizer causing pipeline blockage.

[0032] 6. The utility model adopts a closed circulation method to avoid the quality degradation caused by the material being exposed to the air and absorbing moisture, and can also avoid the safety hazards caused by the volatilization of low-components. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of the neutralizer storage system of the utility model. DETAILED DESCRIPTION

[0034] The following is a clear and complete description of the technical solutions in the embodiments of the utility model in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the utility model.

[0035] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and 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, and therefore should not be understood as a limitation on the present application.

[0036] like Figure 1 The mobile neutralizer storage system for continuous neutralization process shown in the figure includes a neutralizer storage tank 1 and a material storage tank 2, which are connected to form a circulation through a pipeline, and a pump 7 is provided on the pipeline between the neutralizer storage tank 1 and the material storage tank 2.

[0037] The neutralizer storage tank 1 includes a top cover 11, a middle storage tank 12 and a bottom cover 13, which are fixed by metal buckles to prevent liquid leakage.

[0038] A brake universal wheel 3 is provided at the bottom of the bottom cover 13, and a handle 4 is provided on the outside of the middle storage tank 12, so that the operator can move the container conveniently and quickly.

[0039] A discharge port 17 is provided above the top cover 11 and is connected to a feed port above the material storage tank 2 through a pipeline; a feed port 18 is provided below the bottom cover 13 and is connected to a discharge port below the material storage tank 2 through a pipeline.

[0040] A filter bag 14 is arranged in the middle storage tank 12. The filter bag 14 is a plastic mesh bag, a stainless steel mesh bag or a nylon mesh bag, and the mesh number is less than 1000. The neutralizer is arranged in the filter bag 14. The filter bag 14 is used to bind the neutralizer, and the neutralizer can be filtered for the first time to avoid the neutralizer being dispersed outside the neutralizer storage tank 1 to cause pipeline blockage and other safety hazards. At the same time, the filter bag 14 can discharge liquid in all directions, reduce the problems of compaction, hardening, and difficulty in discharging of the neutralizer, so that the material and the neutralizer are fully in circulation contact, which improves safety and improves circulation efficiency.

[0041] A first porous partition 15 is provided between the neutralizer storage tank 1 and the top cover 11, and a second porous partition 16 is provided between the neutralizer storage tank 1 and the bottom cover 13. The apertures of the first porous partition 15 and the second porous partition 16 are less than 200 meshes, and the total area of ​​the holes accounts for less than 1 / 2 of the area of ​​the porous partitions.

[0042] The partition has many functions. The first porous partition 15 can not only support the pressure generated when the liquid flows through the neutralizer from bottom to top, but also perform secondary filtration on the neutralizer to prevent the neutralizer filter bag 14 from deforming and breaking, causing the neutralizer to overflow upward and block the pipeline. The purpose of the second porous partition 16 is to support the neutralizer filter bag 14 and prevent the filter bag 14 from overflowing downward due to gravity damage and blocking the feed pipeline and feed pump. In addition, the porous design can make the material liquid evenly distributed to avoid excessive local pressure and incomplete neutralization.

[0043] A filter membrane 19 is arranged above the first porous partition 15. The material of the filter membrane 19 is polyethersulfone, nylon, mixed cellulose, polytetrafluoroethylene, polyvinylidene fluoride, polypropylene, glass fiber or acetate fiber, and the particle size is less than 10000 mesh. The purpose of setting the filter membrane 19 is to perform three filtrations on the neutralized material to prevent the neutralizer from overflowing into the pipeline to cause blockage, and to cause the product to contain mechanical impurities such as the neutralizer.

[0044] The first porous partition plate 15, the second porous partition plate 16 and the filter membrane 19 are all detachable, which facilitates the disassembly, replacement and cleaning processes.

[0045] A first sampling port 5 is provided above the top cover 11, and a second sampling port 6 is provided at the bottom of the material storage tank 2. The setting of the sampling port facilitates sampling for testing, ensures product quality, and makes timely judgments on the cycle end point and the neutralization effect of the neutralizer.

[0046] Mobile neutralizer storage system operation process:

[0047] The material storage tank 2 is fed with material from the feed port 18 of the bottom cover 13 of the neutralizer storage tank 1 through a delivery pump, and the neutralization reaction is carried out through full contact with the neutralizer, and then the material is filtered through the filter bag 14 for the first time, and then filtered through the first porous partition 15 for the second time, and finally filtered through the filter membrane 19 for the third time, and then returned to the material storage tank 2 through the discharge port 17 of the top cover 11 by pumping, and the cycle is repeated continuously. In this process, the first sampling port 5 can be used to sample and the circulating material can be tested to determine whether the neutralizer has failed and the neutralization effect, and the second sampling port 6 can be used to sample to detect whether the material in the storage tank is completely neutralized. After the neutralizer fails, it only needs to switch to a new neutralizer storage tank 1 to achieve a closed cycle neutralization reaction, while avoiding the neutralization efficiency being reduced due to problems such as the neutralizer being hardened.

[0048] The above is a description of the embodiments of the utility model. Through the above description of the disclosed embodiments, professionals and technicians in the field can implement or use the utility model. Various modifications to these embodiments will be obvious to professionals and technicians in the field. The general principles defined in this article can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to these embodiments shown in this article, but will conform to the widest range consistent with the principles and novelties disclosed in this article.

Claims

1. A mobile neutralizing agent storage system for a continuous neutralization process, characterized in that: The neutralizer storage system comprises a neutralizer storage tank (1) and a material storage tank (2), the two being connected in a loop via a pipeline; The neutralizer storage tank (1) comprises a top cover (11), a middle storage tank (12) and a bottom cover (13); a brake universal wheel (3) is provided at the bottom of the bottom cover (13); and a handle (4) is provided on the outside of the middle storage tank (12); A filter bag (14) is arranged in the middle storage tank (12), the neutralizer is arranged in the filter bag (14), a first porous partition (15) is arranged between the neutralizer storage tank (1) and the top cover (11), and a second porous partition (16) is arranged between the neutralizer storage tank (1) and the bottom cover (13); a filter membrane (19) is arranged above the first porous partition (15); A discharge port (17) is provided above the top cover (11) and is connected to a feed port above the material storage tank (2) via a pipeline; a feed port (18) is provided below the bottom cover (13) and is connected to a discharge port below the material storage tank (2) via a pipeline.

2. The neutralizer storage system according to claim 1, characterized in that: The filter bag (14) is a plastic mesh bag, a stainless steel mesh bag or a nylon mesh bag.

3. The neutralizer storage system according to claim 1, characterized in that: The mesh number of the filter bag (14) is less than 1000 meshes.

4. The neutralizer storage system according to claim 3, characterized in that: The mesh size of the filter bag (14) is 500-900 meshes.

5. The neutralizer storage system according to claim 1, characterized in that: The apertures of the first porous partition (15) and the second porous partition (16) are less than 200 meshes; and the total area of ​​the holes accounts for less than 1 / 2 of the area of ​​the porous partition.

6. The neutralizer storage system according to claim 5, characterized in that: The first porous partition (15) and the second porous partition (16) have a pore size of 50-100 mesh.

7. The neutralizer storage system according to claim 1, characterized in that: The filter membrane (19) is made of polyethersulfone, nylon, mixed cellulose, polytetrafluoroethylene, polyvinylidene fluoride, polypropylene, glass fiber or acetate fiber.

8. The neutralizer storage system according to claim 1, characterized in that: The particle size of the filter membrane (19) is less than 10,000 meshes.

9. The neutralizer storage system according to claim 8, characterized in that: The particle size of the filter membrane (19) is 5000-9000 mesh.

10. The neutralizer storage system according to claim 1, characterized in that: The first porous partition (15), the second porous partition (16) and the filter membrane (19) are all detachable.

11. The neutralizer storage system according to claim 1, characterized in that: A first sampling port (5) is provided above the top cover (11).

12. The neutralizer storage system according to claim 1, characterized in that: A second sampling port (6) is provided at the bottom of the material storage tank (2).

13. The neutralizer storage system according to claim 1, characterized in that: A pump (7) is provided on the pipeline between the neutralizer storage tank (1) and the material storage tank (2).

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