Desulfurization filter

Abstract

The invention discloses a desulfurization filter and relates to the technical field of gas desulfurization devices. The desulfurization filter comprises a support frame, roller type filter screens andcleaning nozzles, wherein the support frame is mounted in a desulfurization tank, each roller type filter screen is provided with a central shaft, two ends of each central shaft are connected with the support frame through bearings, the two roller type filter screens are mounted in a pair in parallel in the support frame, the cleaning nozzles are provided with water inlet pipes and mounted abovethe roller type filter screens, and nozzle tips of the cleaning nozzles are aligned with the position between the two roller type filter screens. The desulfurization filter is convenient to clean, saves cleaning water, strengthens cleaning effect and increases cleaning speed.

Description

technical field [0001] The invention relates to the technical field of gas desulfurization equipment, in particular to a desulfurization filtering device suitable for gas. Background technique [0002] In the coke oven gas production process, the gas usually contains a large amount of sulfur (or there will also be a large amount of sulfur in the flue gas discharged from combustion), so a filter should be installed in the desulfurization tank to absorb the sulfur in the gas. However, in the continuous production process, the sulfur in the gas often forms a thick paste, and impurities such as by-product salts are absorbed in the screen of the filter, blocking the entire filter, resulting in an increase in the sulfur content of the gas. To ensure the product quality of the gas, it is necessary to reduce the sulfur content in the gas, clean the filter, and remove the pasty condensed sulfur and impurities that block the filter. Most of the gas desulfurization filters in the prio...

AI Technical Summary

Problems solved by technology

However, in the continuous production process, the sulfur in the gas often forms a thick paste, and impurities such as by-product salts are absorbed in the screen of the filter, blocking the entire filter, resulting in an increase in the sulfur content of the gas. To ensure the product quality of the gas, it is necessary to reduce the sulfur content in the gas, clean the filter, and remove the pasty condensed sulfur and impurities that block the filter

Most of the gas desulfurization filters in the prior art are baffle plate or swirl plate type. This kind of filter is fixed in the desulfurization tank. After the filter is blocked, the desulfurization equipment needs to be shut down for a long time. The temperature in the desulfurization tank After cooling down to room temperature, maintenance personnel enter the desulfurization tank through the manhole to clean the filter. This maintenance method is labor-intensive, time-consuming, laborious and unsafe

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