Self-purification coke oven gas supergravity washing tower and self-purification coke oven gas benzene washing system

Abstract

The invention relates to the technical field of coke oven gas benzene washing, in particular to a self-purification coke oven gas supergravity washing tower and a self-purification coke oven gas benzene washing system. The supergravity washing tower comprises: a shell provided with a coal gas inlet channel and a coal gas outlet channel; a washing and absorbing device comprising a filler layer, a washing liquid spraying device, a transmission shaft and a support frame; and a mist catching device comprising an internal mist catcher and an external mist catcher, wherein the filler layer is arranged in the center of the shell, the washing liquid spraying device is arranged above the filler layer, the transmission shaft and the support frame are arranged below the filler layer, the internal mist catcher is arranged at the bottom end of the coal gas outlet channel, and the external mist catcher is arranged at the top end of the coal gas outlet channel. The self-purification coke oven gas benzene washing system comprises the self-purification coke oven gas supergravity washing tower. According to the invention, a supergravity technology is utilized and improved, an efficient and stable benzene washing device is provided for coke oven gas benzene washing, and the defects that an existing benzene washing tower is low in washing absorption efficiency, large in occupied area, high in operation cost and the like are overcome.

Description

technical field [0001] The invention relates to the technical field of benzene washing of coke oven gas, in particular to a self-purifying coke oven gas supergravity washing tower and a benzene washing system. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] In the production process of the coking industry, high-value chemical products in coke oven gas need to be recovered, among which coking benzene is one of the important chemical products in the coking industry. At present, the benzene washing equipment used by most enterprises in the coking industry is a packed benzene washing tower with a tower height ranging from 30 meters to 50 meters, and the equipment is tall. In...

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Problems solved by technology

[0004] In order to solve the technical problems existing in the prior art, the object of the present invention is to provide a self-purifying coke oven gas supergravity washing tower and benzene washing system, utilize and improve the supergravity technology, and introduce it into the coking industry for application. Furnace gas benzene washing provides an efficient and stable benzene washing device, which overcomes the shortcomings of existing benzene washing towers such as low washing and absorption efficiency, large floor space, and high operating costs.

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