阅读说明：本技术 一种烯酸提浓深解析装置 (Deep analytical equipment of olefine acid concentration ) 是由 顾建家 吴佩 时运刚 左涛 史振兴 于 2020-08-26 设计创作，主要内容包括：本发明公开了一种烯酸提浓深解析装置,它涉及化工设备技术领域。包括：供料管、稀盐酸蒸发塔、真空浓缩塔、解析塔、氯化钙溶液供应管；所述供料管与所述稀盐酸蒸发塔连通；所述稀盐酸蒸发塔与所述真空浓缩塔之间通过第一管体连通；所述真空浓缩塔与所述解析塔之间通过第二管体连通；所述氯化钙溶液供应管与所述解析塔连通。本发明依次通过稀盐酸蒸发塔、真空浓缩塔,将稀盐酸浓度提升至21％左右,随后通过解析塔将浓度为21％稀盐酸深解析出氯化氢,用于生产聚氯乙烯、盐酸等。(The invention discloses an olefine acid concentration and deep analysis device, and relates to the technical field of chemical equipment. The method comprises the following steps: a feeding pipe, a dilute hydrochloric acid evaporation tower, a vacuum concentration tower, an analysis tower and a calcium chloride solution supply pipe; the feeding pipe is communicated with the dilute hydrochloric acid evaporation tower; the dilute hydrochloric acid evaporation tower is communicated with the vacuum concentration tower through a first pipe body; the vacuum concentration tower is communicated with the analysis tower through a second pipe body; the calcium chloride solution supply pipe is communicated with the desorption tower. The invention sequentially passes through a dilute hydrochloric acid evaporation tower and a vacuum concentration tower, the concentration of the dilute hydrochloric acid is increased to about 21 percent, and then the dilute hydrochloric acid with the concentration of 21 percent is deeply analyzed out hydrogen chloride by an analysis tower to be used for producing polyvinyl chloride, hydrochloric acid and the like.)

1. An olefine acid concentration deep analysis device is characterized by comprising:

a feeding pipe (1), a dilute hydrochloric acid evaporation tower (2), a vacuum concentration tower (3), an analytical tower (4) and a calcium chloride solution supply pipe (5);

the feeding pipe (1) is communicated with the dilute hydrochloric acid evaporation tower (2);

the dilute hydrochloric acid evaporation tower (2) is communicated with the vacuum concentration tower (3) through a first pipe body;

the vacuum concentration tower (3) is communicated with the analysis tower (4) through a second pipe body;

the calcium chloride solution supply pipe (5) is communicated with the desorption tower (4).

2. The apparatus for concentrating and deep-analyzing olefinic acid according to claim 1, further comprising:

and a tubular mixer (43) having an inlet end communicated with the drain end of the second tube and the drain end of the calcium chloride solution supply tube (5), and an outlet end communicated with the desorption tower (4).

3. The olefine acid concentration and deep analysis device according to claim 1, wherein a primary hydrochloric acid preheater and a secondary hydrochloric acid preheater are sequentially connected between the feed pipe (1) and the dilute hydrochloric acid evaporation tower (2); the primary hydrochloric acid preheater and the secondary hydrochloric acid preheater are used for preheating low-concentration dilute hydrochloric acid which is introduced into the dilute hydrochloric acid evaporation tower (2) through the feeding pipe (1).

4. The olefine acid concentration and depth analysis device according to claim 3, wherein the feeding pipe (1) is provided with a first flow meter, a first regulating valve and a feeding pump.

5. The apparatus for concentrating and deeply desorbing alkenoic acid according to claim 1, wherein the first pipe further comprises a flash tank, a first hydrochloric acid delivery pump, a second regulating valve and a second flow meter.

6. The apparatus for concentrating and deeply resolving olefinic acid according to claim 1, wherein a second hydrochloric acid delivery pump is disposed on the second pipe.

7. The apparatus for concentrating and deep-analyzing olefinic acid according to claim 1, further comprising:

a calcium chloride concentration tower (6) which is communicated with the desorption tower (4) through a return pipe (42);

and the calcium chloride circulating pump is used for pumping the calcium chloride solution concentrated by the calcium chloride concentrating tower (6) to the calcium chloride solution supply pipe (5).

8. The apparatus for concentrating and deep-analyzing olefinic acid according to claim 7, further comprising:

and the wastewater collection tank is respectively communicated with the dilute hydrochloric acid evaporation tower (2), the vacuum concentration tower (3), the analysis tower (4) and the calcium chloride concentration tower (6) through a plurality of third pipe bodies and is used for collecting wastewater discharged by the dilute hydrochloric acid evaporation tower (2), the vacuum concentration tower (3), the analysis tower (4) and the calcium chloride concentration tower (6).

Technical Field

The invention belongs to the technical field of chemical equipment, and particularly relates to an olefine acid concentration and deep analysis device.

Background

A large amount of low-concentration dilute acid is generated in the domestic chlorinated polymer production process, the low-concentration dilute acid is generally discharged after neutralization reaction by adopting a conventional treatment process for low-concentration olefine acid, but the discharge seriously pollutes the environment, especially pollutes water resources, cannot be recovered, and does not meet the requirement of environment-friendly social development.

Disclosure of Invention

In order to solve the defects in the background technology, the invention provides an olefine acid concentration and deep analysis device.

In order to achieve the above object, an apparatus for concentrating and deeply analyzing an olefinic acid, comprising:

a feeding pipe, a dilute hydrochloric acid evaporation tower, a vacuum concentration tower, an analysis tower and a calcium chloride solution supply pipe;

the feeding pipe is communicated with the dilute hydrochloric acid evaporation tower;

the dilute hydrochloric acid evaporation tower is communicated with the vacuum concentration tower through a first pipe body;

the vacuum concentration tower is communicated with the analysis tower through a second pipe body;

the calcium chloride solution supply pipe is communicated with the desorption tower.

Further, still include:

and the inlet end of the tubular mixer is communicated with the liquid discharge end of the second pipe body and the liquid discharge end of the calcium chloride solution supply pipe, and the outlet end of the tubular mixer is communicated with the desorption tower.

Further, be connected with in proper order between feed pipe and the dilute hydrochloric acid evaporation tower and include: a primary hydrochloric acid preheater; a secondary hydrochloric acid preheater; and preheating the low-concentration dilute hydrochloric acid which is introduced into the dilute hydrochloric acid evaporation tower through the feeding pipe.

Furthermore, the feeding pipe is provided with a first flowmeter, a first regulating valve and a feeding pump.

Further, still be equipped with flash tank, first hydrochloric acid delivery pump, second governing valve and second flowmeter on the first body.

Further, a second hydrochloric acid delivery pump is arranged on the second pipe body.

Further, still include:

a calcium chloride concentration tower which is communicated with the desorption tower through a return pipe;

and the calcium chloride circulating pump is used for pumping the calcium chloride solution concentrated by the calcium chloride concentrating tower to the calcium chloride solution supply pipe.

Still further, the method further comprises:

and the waste water collecting tank is used for collecting waste water discharged by the dilute hydrochloric acid evaporation tower, the vacuum concentration tower, the desorption tower and the calcium chloride concentration tower.

Compared with the prior art, the invention has the beneficial effects that:

the olefine acid concentration deep-desorption device sequentially passes through the dilute hydrochloric acid evaporation tower and the vacuum concentration tower, the concentration of dilute hydrochloric acid is increased to about 21%, and then the dilute hydrochloric acid with the concentration of 21% is deeply desorbed by the desorption tower to obtain hydrogen chloride which is used for producing raw materials of polyvinyl chloride, hydrochloric acid and the like.

The olefine acid concentration and deep analysis device provided by the invention has simple flow, is suitable for the technological transformation of most factories, and simultaneously, the prepared hydrogen chloride gas has high purity and low cost and is convenient to use in the next procedure.

Drawings

FIG. 1 is a schematic structural view of an olefine acid concentration and deep desorption device in the embodiment.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.

It should be noted that the circuit connections involved in the present invention all adopt a conventional circuit connection manner, and no innovation is involved.