Compound adsorbent grain and production method thereof

Abstract

The invention belongs to the field of an adsorbent, particularly relates to a compound adsorbent grain for purifying tail gas generated from incineration of organic wastes of construction industry, and also relates to a production method of the compound adsorbent grain. Inorganic mineral raw powder is mixed with pure water and then is subjected to the processes of extruding molding and baking shaping, so that the compound adsorbent grain is obtained. The compound adsorbent grain comprises the following components by weight percent: 10%-25% of pumice powder, 10%-25% of diatomite powder, 20%-40% of activated carbon powder and 20%-40% of attapulgite clay powder. The fineness of the inorganic mineral raw powder is not less than 200 meshes. The production method comprises the following steps: placing the raw powder in proportion (weight) based on the formula into a mixer for primarily mixing; mixing with the pure water, the weight of which is 20% of the total weight of the raw powder; extruding and molding; drying; and lastly, baking at 290-310 DEG C, thereby shaping and obtaining the compound adsorbent grain. The compound adsorbent grain provided by the invention is applied to the adsorption treatment of the tail gas generated from the incineration of organic wastes of construction industry and has the advantages of high efficiency, heat resistance, inflaming retarding property, safety and convenience in transportation management.

Description

technical field [0001] The invention belongs to the field of adsorbents, and in particular relates to a composite adsorbent particle used for purifying tail gas produced by incineration of organic waste in construction industry, and also relates to a production method of the composite adsorbent particle. Background technique [0002] With the rise of the construction industry, more and more construction wastes of all kinds have been produced, and with the rapid development of the field of construction materials, construction materials have also been converted from traditional wood to organic materials, such as the most commonly used organic External wall insulation materials and organic construction adhesives, etc. Construction waste of such materials is increasingly becoming a topic of concern due to its difficulty in disposal. The existing treatment methods include landfill and incineration, among which landfill is rarely used because it takes up a lot of land and has sub...

AI Technical Summary

Problems solved by technology

However, pure activated carbon granular adsorbents are generally used in the existing adsorbents. The cost of such adsorbents is relatively high, and the adsorption effect is limited due to the single composition.