Tailing efficient recovery treatment method

A technology for recycling and tailings, which is applied in grain processing, process efficiency improvement, lighting and heating equipment, etc., can solve the problems of insufficient original innovation, high energy consumption, secondary pollution, and difficulty in wide-scale promotion, and achieve reduction Effects of cost and energy consumption, reduction of land occupation, and product quality assurance

Inactive Publication Date: 2013-10-30
HUBEI UNIV OF TECH
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Problems solved by technology

However, when a small amount is used to burn building materials, it is difficult to promote it on a large scale due to its simple beneficiation process, insufficient original innovation, low production capacity, low product added value, high energy consumption, and serious secondary pollution.

Method used

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  • Tailing efficient recovery treatment method

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Effect test

Embodiment 1

[0027] A method for efficiently recycling tailings, the steps of which are:

[0028] A. The tailings containing moisture are dried online by the hot blast furnace heating and drying system:

[0029] The hot blast stove heating and drying system includes ZDFR25 gas-fired hot blast stove 6, TS9620G dryer 3, and TS3400 classifying powder separator 7.

[0030] The tailings raw materials from the tailings yard are sent to the tailings grinding workshop through the B800 belt conveyor (1), and sent to the TS9620G dryer 3 by the TS1200-52 bucket elevator 2, and the materials are dispersed on the distribution plate. The tailings entering the factory contain a lot of moisture, and the ZDFR25 gas-fired hot air stove 6 is used for heating, and the heat exchange is performed in the TS9620G dryer 3 to dry the tailings. The dried tailings enter the φ3m weighing and steady flow through the slide Bin 4.

[0031] The hot air drying system provides adjustable hot air temperature of 350-450°C, ...

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Abstract

The invention discloses a tailing efficient recovery treatment method. The method comprises the following steps: A) using a hot-blast stove heating and drying system to perform online drying on the tailing with moisture; B) using a roller press cyclic system to extrude and crush the tailing to fine powder; and C) using a ball mill system to grind the fine tailing which is sorted by the roller press cyclic system and a tailing concentrating recovery system. When the concentrate is sorted, the tailing is utilized to produce the cement raw material corrective addition and the cement mixture which meet the requirements of the national standard. By adopting the method, ferrous tailings and tailings of nonferrous metals such as gold, silver, copper, lead and molybdenum can be fully concentrated; and the process is simple, the design is reasonable and the energy consumption is low. The industrial solid waste resources can realize efficient and comprehensive utilization, the production cost of the enterprise can be reduced, the land occupancy can be reduced, the ecological environment can be protected and higher economic benefit, social benefit and environmental benefit can be obtained.

Description

technical field [0001] The invention belongs to the technical field of efficient comprehensive utilization and treatment of industrial solid waste and tailings, and more specifically relates to a method for efficient recovery and treatment of tailings, which can fully select and recover iron, gold, silver, copper, lead, molybdenum and other non-ferrous metal tailings mine. Background technique [0002] At present, the comprehensive utilization rate of industrial solid waste in my country is about 60%, while the average comprehensive utilization rate of metal tailings is less than 10%. In contrast, the comprehensive utilization of tailings lags far behind other bulk solid wastes, and has become the bulk solid waste with the largest industrial output and the lowest comprehensive utilization rate in my country. In my country, the annual discharge of tailings is difficult to count, and the current accumulation has reached tens of billions of tons. The accumulation of a large n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B02C21/00F26B21/00C22B7/00
CPCY02P10/20
Inventor 田键
Owner HUBEI UNIV OF TECH
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