Hydrogen chloride self-pressurizing conveying and drying device

Abstract

The invention relates to a hydrogen chloride self-pressurizing conveying and drying device, and belongs to the technical field of hydrogen chloride production. In the device, a pressure valve is arranged in an air outlet pipe of a self-pressurizing conveying tank; the air outlet pipe is connected with a cooler; the bottom of the self-pressurizing conveying tank is connected with a device column which is internally provided with a strip-type cavity; a pressurizing mechanism is arranged in the strip-type cavity; the air outlet end of the cooler is connected with an exhaust pipe which extends into a drying tank; a conveying pipe is arranged at the top of the drying tank; a heat exchanging mechanism and a glass screen demister are arranged inside the drying tank; the heat exchanging mechanismcommunicates with a cylindrical shell body outside the drying tank; a reciprocating mechanism which is connected with a driving mechanism is arranged in a device cavity in a machine body outside the drying tank; a piston which is connected with the reciprocating mechanism is arranged in a piston cavity in the machine body; the piston divides the piston cavity into a first cavity and a second cavity; a pump-in mechanism and a pump-out mechanism which communicate with the drying tank are respectively arranged in the first cavity and the second cavity; and the reciprocating mechanism is connectedwith the pressurizing mechanism through a transmission mechanism. The device is reasonable in structure, can take heat generated in the process of concentrated sulfuric acid absorbing water vapor asa driving source to realize self-pressurizing conveying of hydrogen chloride gas, and is energy-saving and good in drying effect.

Description

technical field [0001] The invention relates to a hydrogen chloride self-pressure conveying and drying device, which belongs to the technical field of hydrogen chloride production. Background technique [0002] Hydrogen chloride is a corrosive non-combustible gas, which often exists in the form of hydrochloric acid fume in the air, easily soluble in ethanol and ether, and also soluble in many other organic substances; it does not react with water but is easily soluble in water, at 25°C and 1 Under atmospheric pressure, 1 volume of water can dissolve 503 volumes of hydrogen chloride gas; it is easily soluble in hydrochemically synthesized hydrogen chloride gas, which often contains more water vapor and needs to be dried. [0003] In the prior art, hydrogen chloride gas often needs to use multiple pump bodies for transportation during the transportation and drying process, which consumes a lot of energy, and in the drying process, the concentrated sulfuric acid used in the dry...

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Problems solved by technology

[0003] In the prior art, hydrogen chloride gas often needs to use multiple pump bodies for transportation during the transportation and drying process, which consumes a lot of energy, and in the drying process, the concentrated sulfuric acid used in the drying process will reduce its concentration after absorbing a certain amount of water. Timely supplementation will affect the absorption effect

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