Comprehensive utilization method of barium sulfate waste residue and wall filling material

A filling material, barium sulfate technology, applied in the direction of solid waste management, sustainable waste treatment, climate sustainability, etc., can solve problems such as hindering the development of the barium salt industry, pollution, etc., to reduce waste residue discharge, reduce production costs, Good sound insulation effect

Active Publication Date: 2017-08-01
南风化工(运城)集团有限公司
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Problems solved by technology

[0004] The present invention aims at the environmental pollution caused by the accumulation of barium sulfate waste slag and the development of the barium salt industry. materials, improving the friendliness to the environment while making full use of resources

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  • Comprehensive utilization method of barium sulfate waste residue and wall filling material
  • Comprehensive utilization method of barium sulfate waste residue and wall filling material

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Embodiment Construction

[0026] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0027] A kind of barium sulfate waste slag comprehensive utilization method, such as figure 1 shown, including the following steps:

[0028] (1) The newly produced barium sulfate slag is separated through a 5-mesh sieve, and the large particles that have not been burned through or the sintered symbionts that have not completely reacted in the barium slag are selected for peeling. At this time, the barium slag with larger particles accounts for 40%, and its barium sulfate content is about 35%.

[0029] After the large-grained barium slag is crushed and crushed, the particle size is controlled at 2-3 mm, and then it enters the jigging machine for jigging flotation, and a specific bed is selected according to the density of the recovered target object, and the bed particle size is controlled at 4-3 mm. Between 10mm (preferably 6-8mm), the bed t...

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Abstract

The invention discloses a new process aiming at recycling treatment and comprehensive utilization of barium sulfate waste residues, and is suitable for all barium salt production manufacturing industries. The process has the main innovations that sintered ores and symbionts in the waste residues produced from production of barium sulfate are stripped for the first time, the waste residues are sorted according to the difference of densities of components, and barite and coal which are not reacted completely are recycled and return to a furnace for reuse; the barium sulfate content of the recycled barite component can reach more than or equal to 80%; and the rest of the residues after harmless treatment are used for preparing an energy-saving wall filling material-a foam concrete block having a radiation protection function. The process not only solves barium sulfate waste residue accumulation and land occupation and various pollution problems on the environment but also recycles the barite and coal which are not reacted completely, besides, makes full use of the radiation protection performance of barium, prepares the novel radiation-protection foam concrete block, saves energy, protects the environment, achieves the purpose of comprehensive utilization of resources, and thoroughly solves the solid waste emission problems in the barium salt production industries.

Description

technical field [0001] The invention relates to the technical field of solid waste treatment in the barium salt industry, and belongs to a method for resourceful utilization of industrial solid waste through treatment and recycling. Background technique [0002] Most of the production processes adopted by the manufacturers in the barium salt industry are based on barite as raw material, which is reduced to barium sulfide with carbon at high temperature, and then leached with water to produce barium sulfate, barium carbonate, barium chloride and other barium Salt products, and the remaining solid residue from leaching (referred to as barium sulfate waste residue) are generally piled up or landfilled as waste. The total production of barium salt in my country is nearly one million tons per year, and about 0.8-1 ton of waste residue is produced for every ton of barium salt produced. Now all kinds of barium salt waste residues are piled up all over the country, totaling about se...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B18/04C04B28/00
CPCY02W30/91
Inventor 荆小兵明江波苏刚闫宏刚伍洲生
Owner 南风化工(运城)集团有限公司
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