Boiler gray water treatment and recycling device

Abstract

The invention discloses a boiler gray water treatment and recycling device. The device comprises a tank shell, three-stage reaction zones, a sedimentation zone and a clear water zone are arranged in the tank shell, a water inlet is arranged in a primary reaction zone, the lower part of the primary reaction zone is provided with a water passing port communicated with a secondary reaction zone, thesecondary reaction zone is communicated with the upper part of a tertiary reaction zone, the lower part of the tertiary reaction zone is communicated with the sedimentation zone, the lower part of thesedimentation zone is provided with a mud collection zone and a mud discharge pipe, the upper part of the mud collection zone is provided with an inclined pipe sedimentation zone, the upper part of the inclined pipe sedimentation zone is provided with an overflow tank communicated with a water discharge tank, the lower part of the clear water zone is provided with a filter bin, the top of the filter bin is connected to an automatic backwashing device, the lower part in the filter bin is provided with a filter zone, the bottom of the filter zone is provided with a water drain port communicatedwith the clear water zone, the clear water zone is connected to a water storage tank through a water outlet pipe, the water discharge tank is communicated with the filter bin through a downcomer, thetail end of the downcomer is provided with a guide cover and the upper part of the guide cover is communicated with the water discharge tank through a gas discharge pipe. The boiler gray water treatment and recycling device has a small footprint and less water usage.

Description

technical field [0001] The invention relates to the technical field of boiler ash water treatment equipment, in particular to a boiler ash water treatment and reuse device. Background technique [0002] In the sugarcane production area of ​​Guangxi, bagasse is a by-product of the sugarcane sugar production process and is an important renewable biological resource. At present, bagasse is mainly used as a raw material for papermaking, boiler fuel and wood-based panels. However, when drying bagasse and / or burning bagasse, a large amount of ash and other solid particles will be entrained in the boiler flue gas. In order to avoid air pollution caused by the ash and other solid particles entrained in the boiler flue gas, water The membrane dust collector treats the flue gas, and the wastewater generated by the water membrane dust collector is gray water, also known as spray gray water. [0003] At present, gray water is treated and reused by placing it in a sedimentation tank, a...

AI Technical Summary

Problems solved by technology

The above-mentioned treatment and reuse requires the construction of more than two larger sedimentation tanks to meet the natural sedimentation reuse, occupying a large area of ​​land, and requiring a large amount of water, and the sludge generated by the sedimentation is not easy to discharge for disposal

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