Flow equalizing equipment for polycrystalline silicon activated carbon adsorption tower

Abstract

Flow equalizing equipment for a polycrystalline silicon activated carbon adsorption tower comprises a reaction tower, a grid and a gas distribution plate. The grid is fixedly connected into the reaction tower, an activated carbon layer is arranged at the upper part of the grid, and a gas distribution device is arranged at the lower part of the grid. The gas distribution plate is fixedly connected in the reaction tower and is arranged between the grating and the gas distribution device, a plurality of gas holes are formed in the gas distribution plate in the vertical direction, and spray heads are mounted in the gas holes. Each spray head comprises a pipe body, a top cap and a piston mounted in the top cap, wherein one end of the pipe body is fixedly connected into the corresponding gas hole, the other end of the pipe body is fixedly connected with the top cap, a dumbbell-shaped gas cavity is formed in the top cap in the vertical direction, a gas dispersing hole communicated with the upper portion of the dumbbell-shaped air cavity is formed in the upper surface of the top cap, a sliding rod is fixedly connected into the top cap, the piston is slidably connected to the sliding rod, the piston is matched with the upper neck portion of the dumbbell-shaped gas cavity in size and is in an inverted frustum shape, and the lower portion of the dumbbell-shaped gas cavity is communicated with a through cavity of the pipe body.

Description

technical field [0001] The invention belongs to the field of chemical industry, in particular to flow equalization equipment used in polysilicon activated carbon adsorption towers. Background technique [0002] The polysilicon activated carbon adsorption tower is the key equipment in the process of "dry recovery and reduction tail gas" in the "improved Siemens method". Its main function is to purify the hydrogen in the mixed gas. The flow equalization equipment is the most critical structure that determines the adsorption performance of the polysilicon activated carbon adsorption tower. It affects the adsorption efficiency through the distribution of the gas flow field in the tower: the more uniform the flow field distribution of the adsorption cross-section, the higher the adsorption efficiency. In the existing polysilicon activated carbon adsorption towers, the flow equalization equipment is mostly a single inlet pipe, and there are not many studies on the gas uniform dist...

AI Technical Summary

Problems solved by technology

In the existing polysilicon activated carbon adsorption towers, the flow equalization equipment is mostly a single inlet pipe, and there are not many studies on the gas uniform distribution.

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