CN219462826U

CN219462826U - Methylbenzotriazole raw material purification processing apparatus

Info

Publication number: CN219462826U
Application number: CN202223155919.7U
Authority: CN
Inventors: 黄海涛; 陈宽华; 王宏; 李桂萍
Original assignee: Nantong Botao Chemical Co ltd
Current assignee: Nantong Botao Chemical Co ltd
Priority date: 2022-11-28
Filing date: 2022-11-28
Publication date: 2023-08-04
Anticipated expiration: 2032-11-28

Abstract

The utility model relates to a raw material purifying and processing device for methylbenzotriazole, which comprises a raw material purifying tank, a vacuum pump and a vacuum system, wherein an air outlet is formed in the raw material purifying tank and is connected with an air inlet of the vacuum pump through an air outlet pipeline, and an air outlet of the vacuum pump is connected into the vacuum system through an air exhaust pipeline; a condenser is arranged between the raw material purifying tank and the vacuum pump on the air outlet pipeline; an absorption device and an RTO incinerator are sequentially arranged on an exhaust pipeline of the vacuum pump. The utility model has the advantages that: the tail gas is treated in advance before entering the vacuum pump through the additionally arranged condenser, tar-like substances contained in the tail gas are condensed, the substances are prevented from entering the subsequent working procedure, and the subsequent pollution is avoided.

Description

Methylbenzotriazole raw material purification processing apparatus

Technical Field

The utility model relates to the field of methylbenzotriazole, in particular to a device for purifying and treating raw materials of methylbenzotriazole.

Background

The methylbenzotriazole is pure white particles or powder, is a mixture of 4-methylbenzotriazole and 5-methylbenzotriazole, has a melting point of 80-86 ℃, is insoluble in water, is soluble in organic solvents such as alcohol, benzene, toluene and chloroform, and can be dissolved in dilute alkali liquor. The metal anticorrosive paint is mainly used as an anticorrosive agent and a corrosion inhibitor for metals (such as silver, copper, lead, nickel, zinc and the like), is widely used in anticorrosive oil (grease) products, and is mainly used as a vapor phase corrosion inhibitor for copper and copper alloy, a lubricating oil additive, a circulating water treatment agent and an automobile antifreeze. The product can also be used together with various scale inhibitors, sterilizing algicides, and has excellent corrosion inhibition effect on a closed circulating cooling water system.

Reaction principle of methylbenzotriazole: diazotizing, acidifying and refining o-toluenediamine, sodium nitrite and concentrated sulfuric acid to obtain the final product methyl benzotriazol. Along with the increasing requirement of the product of the methylbenzotriazole, the quality of the methylbenzotriazole is higher, so that the production process of the methylbenzotriazole, the quality of raw materials and the like are required to be well controlled and improved.

In the process of purifying raw material quality, because raw materials are toxic substances like o-toluenediamine and sodium nitrite, pungent odor can be emitted, so that a vacuumizing system is required to be equipped in the purification process to uniformly collect tail gas generated in the purification process, and the tail gas is prevented from being directly discharged to cause pollution to surrounding environment.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a device for purifying and treating a methyl benzotriazole raw material, which can effectively remove tar-like substances contained in tail gas.

In order to solve the technical problems, the technical scheme of the utility model is as follows: the utility model provides a methylbenzotriazole raw materials purification processing apparatus which innovation point lies in: comprises a raw material purifying tank, a vacuum pump and a vacuum system;

the raw material purifying tank is provided with an air outlet which is connected with an air inlet of the vacuum pump through an air outlet pipeline, and an air outlet of the vacuum pump is connected to the vacuum system through an air exhaust pipeline;

a condenser is arranged between the raw material purifying tank and the vacuum pump on the air outlet pipeline;

an absorption device and an RTO incinerator are sequentially arranged on an exhaust pipeline of the vacuum pump.

Further, the absorbing device comprises an absorbing tank, a filter plate is arranged in the absorbing tank, the filter plate comprises a filter plate main body, a plurality of first filter holes are formed in the filter plate main body, a filter screen is arranged in the filter plate main body, a plurality of second filter holes are formed in the filter screen, and the size of each second filter hole is smaller than that of each first filter hole.

Further, the filter screen is fixed on the upper end face of the filter plate main body through the cooperation of the bolt, a fixed ring is arranged on both sides of the filter screen, a through hole for the bolt to pass through is arranged on the fixed ring, and a threaded blind hole matched with the bolt is arranged on the filter plate main body.

The utility model has the advantages that: in the utility model, the tail gas is treated in advance before entering the vacuum pump through the additionally arranged condenser, so that tarry substances contained in the tail gas are condensed, the substances are prevented from entering the subsequent process, and the subsequent pollution is avoided; and the absorption device is used for absorbing materials contained in the tail gas, so that the materials are reduced to be brought into a vacuum system, the loss of the materials is avoided, the tail gas is incinerated by utilizing the cooperation of the RTO incinerator, the environmental protection requirement is met, the tail gas is prevented from being directly discharged into the atmosphere, and the pollution to the environment is reduced.

The design of the absorption device adopts the joint of the absorption tank and the filter plate to filter the materials in the tail gas, so that the materials in the tail gas are removed, the materials are prevented from entering a vacuum system along with the tail gas, and are discharged into the atmosphere, and the loss of the materials is reduced.

The filter plate adopts the split type design of filter plate main part and filter screen to realize being connected between filter plate main part and the filter screen through the cooperation of bolt, realize the detachable connection of filter screen, make things convenient for the installation and the change of filter screen.

Drawings

The utility model will be described in further detail with reference to the drawings and the detailed description.

FIG. 1 is a schematic diagram of a device for purifying and treating a raw material of methylbenzotriazole of the present utility model.

FIG. 2 is a schematic view of a filter plate according to the present utility model.

Detailed Description

The following examples will provide those skilled in the art with a more complete understanding of the present utility model and are not intended to limit the utility model to the embodiments described.

The device for purifying and treating the raw materials of the methylbenzotriazole shown in fig. 1 and 2 comprises a raw material purifying tank 1, a vacuum pump 3 and a vacuum system 6.

The raw material purifying tank 1 is provided with an air outlet which is connected with an air inlet of the vacuum pump 3 through an air outlet pipeline, and an air outlet of the vacuum pump 3 is connected into the vacuum system 6 through an air exhaust pipeline.

The condenser 2 is further arranged between the raw material purifying tank 1 and the vacuum pump 3 on the air outlet pipeline, the tail gas is subjected to advanced treatment before entering the vacuum pump 3 through the condenser 2, tar-like substances contained in the tail gas are condensed, the substances are prevented from entering the subsequent working procedures, and the subsequent pollution is avoided.

An absorption device and an RTO incinerator 5 are also arranged on the exhaust pipeline of the vacuum pump 3 in sequence. The absorption device is used for absorbing materials contained in the tail gas, so that the materials are reduced to be brought into the vacuum system 6, the loss of the materials is avoided, the tail gas is incinerated by utilizing the cooperation of the RTO incinerator 5, the environmental protection requirement is met, the tail gas is prevented from being directly discharged into the atmosphere, and the pollution to the environment is reduced.

The absorption device comprises an absorption tank 4, a filter plate 41 is installed in the absorption tank 4, as shown in the schematic diagram of fig. 2, the filter plate 41 comprises a filter plate main body 411, the filter plate main body 411 is a circular plate, a plurality of first filter holes 412 are formed in the filter plate main body 411, the first filter holes 412 are circular holes, a filter screen 413 is installed in the filter plate main body 411, a plurality of second filter holes 414 are formed in the filter screen 413, and the size of the second filter holes 414 is smaller than that of the first filter holes 412. The design of the absorption device adopts the joint matching of the absorption tank 4 and the filter plate 41 to filter the materials in the tail gas, so that the materials in the tail gas are removed, the materials are prevented from entering a vacuum system along with the tail gas, and are discharged into the atmosphere, and the loss of the materials is reduced.

The filter screen 413 is fixed on the upper end surface of the filter plate main body 411 through the cooperation of bolts, a fixed ring 415 is arranged on both sides of the filter screen, a through hole for allowing the bolts to pass through is arranged on the fixed ring 415, and a threaded blind hole matched with the bolts is arranged on the filter plate main body 411. The filter plate 41 is designed by adopting a split type design of the filter plate main body 411 and the filter screen 413, and the connection between the filter plate main body 411 and the filter screen 413 is realized through the cooperation of bolts, so that the detachable connection of the filter screen 413 is realized, and the filter screen is convenient to install and replace.

When vacuumizing, the vacuum pump 3 works to vacuumize, tail gas generated in the raw material purifying tank 1 is sucked out, the condensing treatment is carried out through the condenser 2, tar-like substances in the tail gas are condensed, the condensed tail gas passes through the vacuum pump 3 again and is discharged by the vacuum pump 3, the tail gas enters the absorption device firstly, the tail gas is filtered by the filter plate 41 to remove materials contained in the tail gas, then the tail gas is sent to the RTO incinerator 5 again, the tail gas is incinerated, the environment-friendly requirement is met, and the materials are reduced to enter the vacuum system 6.

It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a methylbenzotriazole raw materials purification processing apparatus which characterized in that: comprises a raw material purifying tank, a vacuum pump and a vacuum system;

2. The apparatus for purifying and treating a raw material of methylbenzotriazole according to claim 1, wherein: the absorption device comprises an absorption tank, a filter plate is arranged in the absorption tank, the filter plate comprises a filter plate main body, a plurality of first filter holes are formed in the filter plate main body, a filter screen is arranged in the filter plate main body, a plurality of second filter holes are formed in the filter screen, and the size of each second filter hole is smaller than that of each first filter hole.

3. The apparatus for purifying and treating a raw material of methylbenzotriazole according to claim 2, wherein: the filter screen is fixed on the upper end face of the filter plate main body through the cooperation of the bolt, and both sides of the filter screen are provided with a fixed ring, the fixed ring is provided with a through hole for the bolt to pass through, and the filter plate main body is provided with a threaded blind hole matched with the bolt.