High-efficiency production device for preparing hydrochloric acid by drying hydrogen chloride through water absorption

Abstract

The invention discloses a high-efficiency production device for preparing hydrochloric acid by drying hydrogen chloride through water absorption. The high-efficiency production device comprises a wave-shaped reaction tube, wherein the wave-shaped reaction tube comprises two inlet pipes, a reaction pipeline and an outlet pipe which are of an integrated structure, the two inlet pipes are respectively connected with a hydrogen chloride gas storage tank and a distilled water storage tank by virtue of a gas inlet pipe and a liquid inlet pipe, the outlet pipe is communicated with the top of a cyclone separation tank, the top of the cyclone separation tank is also connected with the gas inlet pipe by virtue of a hydrogen chloride gas recycling pipe, and a liquid outlet pipe at the bottom of the cyclone separation tank is connected to a finished product hydrochloric acid storage tank; a reaction pipeline of a wave-shaped tube reactor is a wave-shaped tube body, a cooling pipe is sheathed outside the reaction pipeline of the wave-shaped tube reactor, a cooling water inlet is formed in the bottom of the cooling pipe, and a hot water outlet is formed in the top of the cooling pipe. The high-efficiency production device has the advantages that distilled water and hydrogen chloride are forcedly transplaced for multiple times in a reducing wave-shaped tube, so that the contact area is expanded, mixing and reaction are uniform, the production efficiency is high, and the product quality is high; meanwhile, the device structure is simple, and the manufacturing cost and the operating cost are respectively low.

Description

technical field [0001] The invention belongs to the field of chemical production equipment, in particular to a high-efficiency production device for preparing hydrochloric acid by absorbing and drying hydrogen chloride with water. Background technique [0002] The current chemical reaction equipment can be roughly divided into three categories: ①Reaction kettle (tank, tank); ②Reaction (absorption) tower; ③Reaction tube. ①, ② Not only the cost is high, but also the problem of uneven heating or heat release is not easy to discharge, which is also one of the main reasons for the amplification effect in chemical production; in addition, chemical reactions often need to be stirred, which faces the problem of shaft sealing. Especially for high-pressure, high-temperature reactions and reactions that require high-speed stirring, it is more difficult or even impossible to solve the shaft sealing problem. ③Although it can overcome the above-mentioned shortcomings of ① and ②, it does ...

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Problems solved by technology

① and ② are not only expensive, but also have the problem of uneven heating or difficult discharge of exothermic heat, which is also one of the main reasons for the amplification effect in chemical production; in addition, chemical reactions often require stirring, which faces the problem of shaft sealing. Especially for high-pressure, high-temperature reactions and reactions that require high-speed stirring, it is more difficult or even impossible to solve the problem of shaft sealing.

③Although it can overcome the above shortcomings of ① and ②, it does not have a good ability to mix the reactants, so it needs to be equipped with a reactant stirring and mixing device

However, the structure of the equipment operated in this way is complicated, the cost is high, and the operating cost is also relatively high.

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