Tar filtering device

Abstract

The utility model discloses a tar filtering device which comprises a vacuum system, a filter tank, a tar adsorption layer and a filter layer, the tar adsorption layer and the filter layer are sequentially arranged in the filter tank, and the filter layer comprises a filter aid layer and a filter paper layer. The tar adsorption layer is used for adsorbing tar, the filter aid layer is composed of a filter aid with a certain thickness, the filter paper layer comprises at least one layer of filter paper, and the tar adsorption layer, the filter aid layer and the filter paper layer are sequentially arranged above a sieve plate of the filter tank from top to bottom; and a connector is arranged at the bottom of the filter tank and is connected with a vacuum system. A series of problems caused by tar blockage are solved.

Description

Technical Field

[0001] This utility model relates to the field of filtration device technology, and in particular to a tar filtration device. Background Technology

[0002] In synthetic chemistry, coupling and substitution reactions involving aliphatic and aromatic amines account for a significant proportion. Under high-temperature conditions, organic amines are readily oxidized to form high-molecular-weight tar compounds. Failure to remove these tar compounds in a timely manner will adversely affect subsequent chemical reactions and may lead to a decline in product quality. Therefore, it is necessary to introduce filtration devices to filter the tar.

[0003] Existing filtration devices are prone to tar clogging when filtering organic amine solutions, requiring frequent replacement of the filter media and paper to remove the tar. This reduces production efficiency and prolongs filtration time. As filtration time increases, the temperature of the organic amine solution in the filter tank gradually decreases, causing the product to precipitate out of the solution due to the temperature drop, thus reducing product yield. Summary of the Invention

[0004] This invention provides a tar filtration device to overcome a series of problems caused by tar blockage.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A tar filtration device includes: a vacuum system, a filter tank, and a tar adsorption layer and a filter layer sequentially disposed in the filter tank, wherein the filter layer includes a filter aid layer and a filter paper layer.

[0007] The tar adsorption layer is used to adsorb tar, the filter aid layer is composed of a filter aid of a certain thickness, the filter paper layer includes at least one layer of filter paper, and the tar adsorption layer, the filter aid layer and the filter paper layer are arranged in order from top to bottom above the sieve plate of the filter tank.

[0008] The bottom of the filter tank is provided with an interface, which is connected to a vacuum system.

[0009] Furthermore, the tar adsorption layer is composed of multiple layers of stacked oil-absorbing felt.

[0010] Furthermore, the tar adsorption layer is composed of an adsorption material of a certain thickness, wherein the adsorption material is selected from one or more of sawdust, corn cob powder, and ceramic flakes.

[0011] Furthermore, the thickness of the tar adsorption layer is 5-15 cm.

[0012] Furthermore, the filter aid is selected from one or more of diatomaceous earth, kaolin, perlite, and cellulose.

[0013] Furthermore, the thickness of the filter aid layer is 5-15 cm.

[0014] Furthermore, the vacuum system includes a vacuum tank and a vacuum pump, the vacuum pump being connected to the vacuum tank via a pipeline, and the inlet of the vacuum tank being connected to the interface via a pipeline.

[0015] Furthermore, it also includes a receiving tank, which is connected to the outlet of the vacuum tank via a pipeline.

[0016] Beneficial effects:

[0017] This utility model provides a tar filtration device that adsorbs tar in the solution by setting a tar adsorption layer above the filter layer, intercepting the tar above the filter layer and preventing the solution from carrying tar into the filter aid layer and filter paper layer below the tar adsorption layer. This reduces the need for frequent replacement of filter media and filter paper in the filter layer, ensuring production efficiency. The vacuum system draws suction from the filter tank through the interface at the bottom of the filter tank, thereby increasing the filtration speed through negative pressure, reducing filtration time, and mitigating the problem of product precipitation in the solution system due to temperature drop. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A cross-sectional view of the filter tank of a tar filtration device provided by this utility model. Figure 1 ;

[0020] Figure 2 A cross-sectional view of the filter tank of a tar filtration device provided by this utility model. Figure 2 ;

[0021] Figure 3 This is a schematic diagram of the structure of a tar filtration device provided by this utility model.

[0022] In the picture:

[0023] 1. Filter tank; 11. Sieve plate; 12. Interface;

[0024] 2. Tar adsorption layer;

[0025] 3. Filter aid layer;

[0026] 4. Filter paper layer;

[0027] 5. Vacuum container;

[0028] 6. Vacuum pump;

[0029] 7. Receiving tank. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0031] This embodiment provides a tar filtration device, such as... Figure 1 As shown, it includes: a vacuum system, a filter tank 1, and a tar adsorption layer 2 and a filter layer sequentially disposed in the filter tank 1. The filter layer includes a filter aid layer 3 and a filter paper layer 4.

[0032] The tar adsorption layer 2 is used to adsorb tar, the filter aid layer 3 is composed of a filter aid of a certain thickness, and the filter paper layer 4 includes at least one layer of filter paper. The tar adsorption layer 2, the filter aid layer 3, and the filter paper layer 4 are arranged sequentially from top to bottom as follows: Figure 2 Above the sieve plate 11 of the filter tank 1 shown, in this embodiment, the thickness of the tar adsorption layer 2 is 5-15cm, and the thickness of the filter aid layer 3 is 5-15cm.

[0033] The bottom of the filter tank 1 is provided with an interface 12, which is connected to a vacuum system;

[0034] This embodiment provides a tar filtration device that adsorbs tar in the solution by setting a tar adsorption layer 2 above the filter layer, intercepting the tar above the filter layer and preventing the solution from carrying tar into the filter aid layer 3 and filter paper layer 4 below the tar adsorption layer 2. This reduces the need for frequent replacement of the filter material and filter paper in the filter layer, ensuring production efficiency. The vacuum system draws suction from the filter tank 1 through the interface 12 at the bottom of the filter tank 1 to increase the filtration speed through negative pressure, reduce filtration time, and mitigate the problem of product precipitation in the solution system due to temperature drop.

[0035] This embodiment provides a tar filtration device that can be modified from the existing filter tanks in the production workshop to reduce production costs.

[0036] In a specific embodiment, the tar adsorption layer 2 is composed of multiple layers of stacked oil-absorbing felt. When the top layer of oil-absorbing felt is blocked by tar, causing the filtration speed to decrease, it can be torn off to quickly clean the tar.

[0037] In a specific embodiment, the filter aid is selected from one or more of diatomaceous earth, kaolin, perlite and cellulose. The filter aid is used to assist filtration and, depending on the material actually selected, can also remove mechanical impurities or decolorize.

[0038] In a specific embodiment, such as Figure 3 As shown, the vacuum system includes a vacuum tank 5 and a vacuum pump 6. The vacuum pump 6 is connected to the vacuum tank 5 through a pipeline. The inlet of the vacuum tank 5 is connected to the interface 12 through a pipeline. The vacuum pump 6 creates a negative pressure inside the vacuum tank 5 to draw the filter tank 1.

[0039] In a specific embodiment, such as Figure 3 As shown, it also includes a receiving tank 7, which is connected to the outlet of the vacuum tank 5 via a pipeline. In this embodiment, the vacuum tank 5 is positioned higher than the receiving tank 7 so that the filtered solution can be introduced into the receiving tank 7 through the height difference.

[0040] In actual use, filter paper can be laid on the sieve plate 11 first, ensuring that the edge of the filter paper is tightly attached to the inner wall of the filter tank 1. After turning on the vacuum system, the filter aid is poured into the filter tank 1. The operator can use tools such as shovels to smooth and compact the filter aid. The oil-absorbing felt is cut to a suitable size and at least 5 layers of oil-absorbing felt (the thickness of a single layer of oil-absorbing felt is about 1 cm) are laid on the filter aid to complete the preparation work before filtration.

[0041] When filtration is required, the tar-containing solution is placed in the filter tank for filtration. As the filtration volume increases, the amount of tar on the top of the tar adsorption layer 2 will gradually increase. When the filtration speed does not meet the requirements, the operator can tear off the tar-adhesive felt on the top layer and continue filtering the solution.

[0042] Example 2

[0043] This embodiment provides a tar filtration device. The main structure of this embodiment is similar to that of Embodiment 1. The difference between this embodiment and Embodiment 1 is as follows:

[0044] In Example 1, the tar adsorption layer 2 is composed of multiple layers of oil-absorbing felt stacked together.

[0045] In this embodiment, the tar adsorption layer 2 is composed of an adsorption material of a certain thickness. The adsorption material is selected from one or more of sawdust, corn cob powder and ceramic flakes. The tar adsorption layer 2 composed of the above adsorption material has a better adsorption effect.

[0046] In actual use, filter paper can be laid on the sieve plate 11 first, ensuring that the edge of the filter paper is tightly attached to the inner wall of the filter tank 1. After turning on the vacuum system, the filter aid is poured into the filter tank 1. The operator can use tools such as shovels to smooth and compact the filter aid. Then, the adsorbent material is poured into the filter tank 1. The operator can use tools such as shovels to smooth and compact the adsorbent material, thus completing the preparation work before filtration.

[0047] When filtration is required, the tar-containing solution is placed in the filter tank for filtration. As the filtration volume increases, the amount of tar on the top of the tar adsorption layer 2 will gradually increase. When the filtration speed does not meet the requirements, the operator can remove the adsorption material with tar adhering to the top layer and continue filtration of the solution.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A tar filtration device, characterized in that, include: A vacuum system, a filter tank (1), and a tar adsorption layer (2) and a filter layer arranged sequentially in the filter tank (1), wherein the filter layer includes a filter aid layer (3) and a filter paper layer (4); The tar adsorption layer (2) is used to adsorb tar, the filter aid layer (3) is composed of a filter aid of a certain thickness, the filter paper layer (4) includes at least one layer of filter paper, and the tar adsorption layer (2), the filter aid layer (3) and the filter paper layer (4) are arranged from top to bottom above the sieve plate (11) of the filter tank (1). The filter tank (1) has an interface (12) at the bottom, and the interface (12) is connected to a vacuum system.

2. The tar filtration device according to claim 1, characterized in that, The tar adsorption layer (2) is composed of multiple layers of oil-absorbing felt stacked together.

3. The tar filtration device according to claim 1, characterized in that, The tar adsorption layer (2) is composed of an adsorption material of a certain thickness, which is selected from one or more of sawdust, corn cob powder and ceramic flakes.

4. A tar filtration device according to claim 2 or 3, characterized in that, The thickness of the tar adsorption layer (2) is 5-15 cm.

5. A tar filtration device according to claim 1, characterized in that, The filter aid is selected from one or more of diatomaceous earth, kaolin, perlite, and cellulose.

6. A tar filtration device according to claim 5, characterized in that, The thickness of the filter aid layer (3) is 5-15 cm.

7. A tar filtration device according to claim 1, characterized in that, The vacuum system includes a vacuum tank (5) and a vacuum pump (6). The vacuum pump (6) is connected to the vacuum tank (5) through a pipeline, and the inlet of the vacuum tank (5) is connected to the interface (12) through a pipeline.

8. A tar filtration device according to claim 7, characterized in that, It also includes a receiving tank (7), which is connected to the outlet of the vacuum tank (5) via a pipeline.

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