Steel lining plastic storage tank and its processing technology

Abstract

The application discloses a steel lining plastic storage tank and a processing technology thereof, which comprises a storage tank body, wherein the storage tank body comprises a tank body, a partition plate is arranged in the tank body, the partition plate is used for separating different liquids stored in the storage tank body, the tank body comprises an outer layer, the outer layer is made of Q235B carbon steel material, an inner wall of the outer layer is fixedly connected with the partition plate, a plurality of through holes are formed in the partition plate, a middle layer is fixedly installed on the inner wall of the outer layer, the middle layer is made of a steel mesh, an inner layer is fixedly installed on an inner wall of the middle layer, and the inner layer is made of HDPE (high-density polyethylene). The steel lining plastic storage tank and the processing technology thereof have the advantages that the partition plate arranged in the tank body is beneficial to separating different liquids in the storage tank body, the partition plate is welded after being laid with powder, and then the inner layer is integrally formed through a roll molding technology, so that the inner layer is integrally formed in the tank body after being separated by the partition plate, the liquid stored in the tank body is difficult to corrode the partition plate through the inner layer, the corrosion resistance of the partition plate is improved, and a plurality of liquids can be conveniently stored in the storage tank body.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steel lining plastic storage tank, and particularly relates to a steel lining plastic storage tank and a processing technology thereof. BACKGROUND

[0002] The steel lining plastic storage tank is also called tortoise shell lining storage tank (tortoise shell lining-steel, net and plastic three-in-one), which is the essence of the steel plastic composite series product. The steel lining plastic storage tank is formed by a special rotational molding process. The steel net is welded on the surface of the steel body. Pure polyethylene (linear low density polyethylene LLDPE and high density polyethylene HDPE) is used as raw material. The steel plate, the steel net (tortoise shell) and the polyethylene are organically combined into one body by the rotational molding process.

[0003] However, the inner cavity of the existing steel lining plastic storage tank is difficult to block. It is not easy to separate multiple liquids in the storage tank. If a partition plate is directly arranged in the storage tank, the connection between the partition plate and the storage tank will be corroded after long-term placement of the liquid, thereby corroding the partition plate and affecting the blocking effect of the partition plate. The liquids in the adjacent layers are mixed with each other, which is not conducive to the storage of multiple liquids. SUMMARY

[0004] The present application aims at solving the problems in the prior art and provides a steel lining plastic storage tank and a processing technology thereof.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: a steel lining plastic storage tank, comprising a storage tank body, wherein the storage tank body comprises a tank body, a partition plate is arranged in the tank body, and the partition plate is used to separate different liquids contained in the storage tank body.

[0006] As a further description of the above technical scheme: the tank body comprises an outer layer, and the outer layer is made of Q235B carbon steel material.

[0007] As a further description of the above technical scheme: the inner wall of the outer layer is fixedly connected with the partition plate.

[0008] As a further description of the above technical scheme: a plurality of through holes are formed in the partition plate.

[0009] As a further description of the above technical scheme: the inner wall of the outer layer is fixedly connected with the partition plate.

[0010] As a further description of the above technical scheme: the middle layer is made of steel net.

[0011] As a further description of the above technical scheme: the inner wall of the middle layer is fixedly connected with the inner layer.

[0012] As a further description of the above technical scheme: the inner layer is made of HDPE high density polyethylene.

[0013] As a further description of the above technical solutions: the inner layer penetrates and covers the middle layer and the partition plate.

[0014] A processing technology of a plastic tank with a steel liner, comprising:

[0015] S1: clean the surface of the partition plate using a rust removal machine, and then bake the partition plate to redness by natural gas;

[0016] S2: lay a powder on the ground, the powder is made of HDPE high-density polyethylene, immediately place the red-hot partition plate on the powder, and then cover the surface of the partition plate with the powder;

[0017] S3: after the partition plate cools down, remove the powder on the surface of the partition plate to be welded, hang the partition plate in the tank body, and then weld the partition plate to the inner wall of the tank body by electric welding;

[0018] S4: according to the number of liquid types contained in the tank body, repeat S1-S3;

[0019] S5: after the partition plate is welded, the partition plate forms a partition in the inner cavity of the tank body, and the inner layer is formed in the tank body by using the rotational molding technology, the inner layer is integrally formed along the partition plate in the inner cavity of the tank body, and the tank body is processed by the partition.

[0020] The above technical solutions have the following advantages or beneficial effects:

[0021] 1. The partition plate arranged in the tank body is beneficial to separate different liquids in the tank body.

[0022] 2. After the partition plate is laid with powder and welded to the tank body, the inner layer is integrally formed by using the rotational molding technology, the inner layer is integrally formed in the tank body after the partition plate, the liquid contained in the tank body is difficult to corrode the partition plate through the inner layer, which is beneficial to enhance the corrosion resistance of the partition plate, and is convenient for storing multiple liquids in the tank body. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a perspective view of the structure of the present application;

[0024] Figure 2 is Figure 1 a sectional view of the middle tank body;

[0025] Figure 3 is Figure 2 a schematic view of the partition plate.

[0026] LEGEND:

[0027] 1. tank body; 2. tank body; 21. outer layer; 22. middle layer; 23. inner layer; 4. partition plate; 5. through hole. DETAILED DESCRIPTION

[0028] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of the present application.

[0029] With reference to Figures 1-3 The present application provides an embodiment of a steel lining plastic storage tank, comprising a storage tank body 1, the storage tank body 1 comprising a tank body 2, a baffle 4 is arranged in the tank body 2, the baffle 4 is used to separate different liquids contained in the storage tank body 1.

[0030] The tank body 2 comprises an outer layer 21 made of Q235B carbon steel material, the inner wall of the outer layer 21 is fixedly connected with the baffle 4, a plurality of through holes 5 are formed on the baffle 4, the through holes 5 can absorb more powder when the baffle 4 is laid with powder, so that the inner layer 23 formed by rotational molding is combined with the powder in the through holes 5, and the baffle 4 is more stably covered by the inner layer 23. The middle layer 22 is fixedly installed on the inner wall of the outer layer 21, the middle layer 22 is made of steel mesh, the inner wall of the middle layer 22 is fixedly installed with the inner layer 23, the inner layer 23 is made of HDPE high density polyethylene, the inner layer 23 penetrates and covers the middle layer 22 and the baffle 4, and the outer layer 21, the middle layer 22 and the baffle 4 are organically combined into an integrated whole.

[0031] A processing technology of a steel lining plastic storage tank, comprising:

[0032] S1: using a rust removal machine to clean the surface of the baffle 4, then burning the baffle 4 to red by natural gas, and then measuring the temperature of the baffle 4 by using a temperature measuring instrument, the temperature of the baffle 4 reaching above 200℃, that is, the baffle 4 is burned to completion;

[0033] S2: laying powder on the ground, the powder being made of HDPE high density polyethylene, immediately placing the baffle 4 burned to red on the powder, and then laying the powder on the surface of the baffle 4, so that the baffle 4 is wrapped by the powder, and the through holes 5 are filled with the powder;

[0034] S3: after the baffle 4 is cooled, removing the powder on the surface of the baffle 4 to be welded, hoisting the baffle 4 in the tank body 2, and then welding the baffle 4 to the inner wall of the tank body 2 by using electric welding, at this time, the inner layer 23 is not formed by rotational molding in the tank body 2;

[0035] S4: according to the number of types of liquids contained in the storage tank body 1, repeating S1-S3;

[0036] S5: After the welding of the partition plate 4 is completed, the partition plate 4 causes the inner cavity of the tank body 2 to be layered, and the inner layer 23 is integrally formed by using the rotational molding technology in the tank body 2. The material of the inner layer 23 and the powder material are both HDPE high-density polyethylene. When the inner layer 23 is formed by rotational molding, it is combined with the powder in the through hole 5, so that the partition plate 4 is more stable and is covered by the inner layer 23. The inner layer 23 combines the outer layer 21, the middle layer 22 and the partition plate 4 organically into one body. The inner layer 23 is integrally formed along the partition plate 4 in the inner cavity of the tank body 2, so that the liquid in the tank body 2 is difficult to corrode the partition plate 4 through the inner layer 23, and the inner partitioning of the tank body 1 is realized.

[0037] Working principle: The partition plate 4 separates different liquids in the tank body 1, which is convenient for storing multiple liquids in the steel lining plastic tank. After the powder is laid on the partition plate 4 and is welded with the tank body 2, the inner layer 23 is integrally formed by using the rotational molding technology. When the inner layer 23 is formed by rotational molding, it is combined with the powder in the through hole 5, so that the partition plate 4 is more stable and is covered by the inner layer 23. The inner layer 23 combines the outer layer 21, the middle layer 22 and the partition plate 4 organically into one body, so that the liquid in the tank body 2 is difficult to corrode the partition plate 4 through the inner layer 23, which is conducive to enhancing the corrosion resistance of the partition plate 4 and is convenient for storing multiple liquids in the tank body 1.

[0038] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing embodiments of the present application are described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of protection of the present application.

Claims

1. A steel lined plastic storage tank characterized by: It includes a storage tank body (1), the storage tank body (1) includes a tank body (2), a partition (4) is provided inside the tank body (2), and the partition (4) is used to separate different liquids contained in the storage tank body (1); The tank body (2) includes an outer layer (21), which is made of Q235B carbon steel. The inner wall of the outer layer (21) is fixedly connected to the partition (4); The partition (4) has several through holes (5); The inner wall of the outer layer (21) is fixedly installed with the middle layer (22); The middle layer (22) is made of steel mesh; The inner layer (23) is fixedly installed on the inner wall of the middle layer (22); The inner layer (23) is made of HDPE high-density polyethylene; The inner layer (23) permeates and covers the middle layer (22) and the partition (4).

2. A process for using the steel lined plastic storage tank of claim 1, characterized by: include: S1: Use a rust remover to clean the surface of the partition (4), and then use natural gas to heat the partition (4) until it is red-hot; S2: Lay powder on the ground. The powder material is HDPE high-density polyethylene. Immediately place the red-hot partition (4) on the powder and then cover the surface of the partition (4) with powder. S3: After the partition (4) has cooled down, remove the powder from the surface of the partition (4) to be welded, hang the partition (4) inside the tank (2), and then weld the partition (4) to the inner wall of the tank (2) by electric welding. S4: Repeat S1 to S3 according to the type and quantity of liquid contained in the tank body (1); S5: After the partition (4) is welded, the partition (4) creates a partition in the inner cavity of the tank body (2). The inner layer (23) material is formed into an integral layer (23) in the tank body (2) using rotational molding technology. The inner layer (23) is integrally formed along the partition (4) in the inner cavity of the tank body (2), realizing the internal partition processing of the storage tank body (1).

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