Deacidification device for DMMn production

Abstract

The utility model relates to the technical field of deacidification equipment in a chemical production process, in particular to a deacidification device for DMMn production, which comprises a reaction tower, an upper section of filler structure and a lower section of filler structure are arranged in the reaction tower, each section of filler structure comprises a distributor and a supporting grating plate, filler is arranged on the supporting grating plate, a supporting ring is arranged above the filler, and the distributor is connected with the supporting ring. A distributor for compacting the filler is arranged on the support ring; a material extraction pipe is arranged on one side of the top of the reaction tower, a liquid caustic soda feeding pipe is arranged on the other side of the top of the reaction tower, and the tail end of the liquid caustic soda feeding pipe extends into the distributor and extends to the distributor of the upper-section filler structure; a reaction material inlet pipe is arranged at the lower part of the reaction tower, and a material discharge pipe is arranged at the bottom of the reaction tower. According to the reaction tower disclosed by the utility model, the feeding mode of liquid caustic soda is changed, and a filling structure is additionally arranged in the reaction tower, so that full contact between the liquid caustic soda and a material is increased in time and space, the liquid caustic soda and the material are fully reacted, the utilization rate of the liquid caustic soda is improved, and the usage amount of the liquid caustic soda is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of deacidification equipment in chemical production processes, in particular to a deacidification device used for DMMn production. Background Art

[0002] In the traditional deacidification device for DMMn production products, the reaction materials and deacidified liquid caustic soda are simultaneously introduced into the reaction tower through a mixer from the bottom of the equipment. Utilizing the principle of different densities of the materials in the mixture, acidic products such as formic acid in the reaction materials react with the liquid caustic soda to produce sodium formate, water, and unreacted liquid caustic soda. These high-density by-products and the low-density target product are stratified and precipitated. The high-density heavy by-products are discharged from the bottom of the equipment, and the low-density target product is collected from the top of the equipment to achieve the purpose of deacidification of the reactants.

[0003] However, because the reactants and liquid caustic soda have limited mixing time and space in the mixer, the mixing is uneven, and the liquid caustic soda cannot be fully utilized. To completely remove the formic acid in the reactants, excessive amounts of liquid caustic soda are used in the reaction tower. The sodium formate and water discharged from the bottom contain a large amount of caustic soda, resulting in significant waste of liquid caustic soda and increasing the burden on wastewater treatment. To address this issue and reduce consumption and minimize financial losses, a new deacidification device for DMMn production was designed. Utility Model Content

[0004] The utility model aims to solve the above problems and provides a deacidification device for DMMn production.

[0005] The utility model is realized through the following technical scheme: a deacidification device for DMMn production, comprising a reaction tower, characterized in that an upper and lower packing structure are provided in the reaction tower, each packing structure comprises a distributor and a supporting grid plate, the supporting grid plate is installed on the inner wall of the reaction tower, a packing is provided on the supporting grid plate, a support ring is provided above the packing, the support ring is installed on the inner wall of the reaction tower, and a distributor for compacting the packing is provided on the support ring; a material extraction pipe is provided on one side of the top of the reaction tower, a liquid alkali feed pipe is provided on the other side of the top, the tail end of the liquid alkali feed pipe extends into the interior of the distributor and extends to the distributor of the upper packing structure; a reaction material inlet pipe is provided at the lower part of the reaction tower, a material discharge pipe is provided at the bottom of the reaction tower, and the material discharge pipe is connected to the waste alkali liquid tank through a pipeline.

[0006] Furthermore, the distributor is a detachable distributor.

[0007] Furthermore, a delivery pump is provided on the pipeline connecting the material discharge pipe and the waste alkali liquid tank.

[0008] The beneficial effects of the utility model are as follows: the utility model changes the feeding method of liquid alkali and adds a filler structure in the reaction tower, thereby increasing the full contact between liquid alkali and materials in time and space, allowing them to fully react, improving the utilization rate of liquid alkali, and reducing the amount of liquid alkali used. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural diagram of the present utility model.

[0010] Figure 2 This is a structural diagram of the traditional process.

[0011] In the attached drawings, 1 is a reaction tower, 2 is a material extraction pipe, 3 is a liquid alkali feed pipe, 4 is a distributor, 5 is a support ring, 6 is a filler, 7 is a support grid plate, 8 is a material inlet pipe, 9 is a material discharge pipe, and 10 is a delivery pump. DETAILED DESCRIPTION

[0012] In order to make the purpose, technical solution and beneficial effects of the present invention more clear, the technical solution of the present invention is further described below in conjunction with embodiments.

[0013] like Figures 1 to 2 As shown, a deacidification device for DMMn production includes a reaction tower 1. The reaction tower 1 is provided with an upper and lower packing 6 structure. Each packing 6 structure includes a distributor 4 and a support grid plate 7. The support grid plate 7 is installed on the inner wall of the reaction tower 1. The support grid plate 7 is provided with a packing 6. The packing 6 is 3 meters long. A support ring 5 is provided above the packing 6. The support ring 5 is installed on the inner wall of the reaction tower 1. The support ring 5 is provided with a distributor 4 for compacting the packing 6; a material extraction pipe 2 is provided on one side of the top of the reaction tower 1, and a liquid alkali feed pipe 3 is provided on the other side of the top. In order to prevent the alkali liquid from being extracted with the material extraction pipe 2, the tail end of the liquid alkali feed pipe 3 extends into the interior of the distributor 4 and extends to the distributor 4 of the upper packing 6 structure, so that the liquid alkali and formic acid can fully react and contact; a reaction material inlet pipe 8 is provided at the lower part of the reaction tower 1, and a material discharge pipe 9 is provided at the bottom of the reaction tower 1. The material discharge pipe 9 is connected to the waste alkali liquid tank through a pipeline.

[0014] During use, the reaction materials enter the reaction tower 1 from the material inlet pipe 8, and the liquid alkali enters the reaction tower 1 through the liquid alkali material reduction pipe. The reaction materials and the liquid alkali fully contact and react, so that the heavy by-products produced are discharged through the material discharge pipe 9 at the bottom of the tower, and the light by-products produced are extracted through the material extraction pipe 2 at the top of the tower.

[0015] Except for the technical features described in the specification, the remaining technical features are known to those skilled in the art.

Claims

1. A deacidification device for DMMn production, comprising a reaction tower (1), characterized in that: The reaction tower (1) is provided with an upper and lower packing structure, each packing structure includes a distributor (4) and a support grid plate (7), the support grid plate (7) is installed on the inner wall of the reaction tower (1), a packing (6) is provided on the support grid plate (7), a support ring (5) is provided above the packing (6), the support ring (5) is installed on the inner wall of the reaction tower (1), and a distributor (4) for compacting the packing (6) is provided on the support ring (5); a material extraction pipe (2) is provided on one side of the top of the reaction tower (1), and a liquid alkali feed pipe (3) is provided on the other side of the top, the tail end of the liquid alkali feed pipe (3) extends into the inside of the distributor (4) and extends to the distributor (4) of the upper packing structure; a reaction material inlet pipe (8) is provided at the lower part of the reaction tower (1), and a material discharge pipe (9) is provided at the bottom of the reaction tower (1), and the material discharge pipe (9) is connected to the waste alkali liquid tank through a pipeline.

2. A deacidification device for DMMn production according to claim 1, characterized in that: The distributor (4) is a detachable distributor (4).

3. A deacidification device for DMMn production according to claim 1, characterized in that: A delivery pump (10) is provided on the pipeline connecting the material discharge pipe (9) and the waste alkali liquid tank.

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