Removal device and method for mercury in mercury-containing pollutant

A pollutant and removal technology, applied in the direction of solid waste removal, combustion method, separation method, etc., can solve the problems of high energy and resource consumption, high processing cost, difficult to achieve the effect of treatment, etc., to reduce energy consumption, The effect of improving the reaction rate, good environmental benefits and economic benefits

Active Publication Date: 2017-02-22
云南全周环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It takes a lot of energy and resources to deal with mercury-containing waste, and the treatment cost is high and it is difficult to achieve the treatment effect

Method used

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  • Removal device and method for mercury in mercury-containing pollutant
  • Removal device and method for mercury in mercury-containing pollutant
  • Removal device and method for mercury in mercury-containing pollutant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A device for removing mercury in mercury-containing pollutants, consisting of a material preparation system, a preheating drying system, a thermal analysis system, a residue cooling and conveying system, and a flue gas purification system. The material preparation system consists of a vibrating screen A(1) , vibrating screen B (2), crusher (4) and screw conveyor (16), the sieve hole diameter of described vibrating screen A is 5mm, and the outlet of vibrating screen A sieve is connected to the vibrating screen B inlet, vibrating The undersize of the sieve A is sent to the thermal analysis system by the screw conveyor; the sieve aperture of the vibrating screen B is 10mm, the oversize of the vibrating screen B enters the crusher for crushing, and the undersize of the vibrating screen B is conveyed by the screw The machine is sent to the preheating drying system; the material crushed by the crusher is sent to the vibrating screen B by the belt conveyor (3) for secondary scr...

Embodiment 2

[0061] A device for removing mercury in mercury-containing pollutants, consisting of a material preparation system, a preheating drying system, a thermal analysis system, a residue cooling and conveying system, and a flue gas purification system. The material preparation system consists of a vibrating screen A, a vibrating screen B. Crusher and screw conveyor, the aperture of the vibrating screen A is 5mm, the outlet of the vibrating screen A is connected to the vibrating screen B inlet, and the vibrating screen A is sent to the hot water by the screw conveyor. Analysis system; the sieve hole diameter of the vibrating screen B is 10mm, the oversize of the vibrating screen B enters the crusher for crushing, and the undersize of the vibrating screen B is sent to the preheating drying system by a screw conveyor; the crushing The material crushed by the machine is sent to the vibrating screen B by a belt conveyor for secondary screening, and the screw conveyor is a twin-screw conve...

Embodiment 3

[0078] A device for removing mercury in mercury-containing pollutants, consisting of a material preparation system, a preheating drying system, a thermal analysis system, a residue cooling and conveying system, and a flue gas purification system. The material preparation system consists of a vibrating screen A, a vibrating screen B. Crusher and screw conveyor, the aperture of the vibrating screen A is 5mm, the outlet of the vibrating screen A is connected to the vibrating screen B inlet, and the vibrating screen A is sent to the hot water by the screw conveyor. Analysis system; the sieve hole diameter of the vibrating screen B is 10mm, the oversize of the vibrating screen B enters the crusher for crushing, and the undersize of the vibrating screen B is sent to the preheating drying system by a screw conveyor; the crushing The material crushed by the machine is sent to the vibrating screen B by a belt conveyor for secondary screening, and the screw conveyor is a twin-screw conve...

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Abstract

The invention belongs to the technical field of solid waste treatment, and particularly relates to a removal device and method for mercury in a mercury-containing pollutant. The removal device for the mercury in the mercury-containing pollutant consists of a material preparing system, a pre-heating drying system, a thermal desorption system, a residue cooling conveying system and a flue gas purifying system. The removal method for mercury in the mercury-containing pollutant comprises the following steps of: pre-treating, pre-heating and drying, desorbing and mercury-removing, mercury-containing flue gas purifying. According to the removal device and the removal method, mercury resources further can be recycled while pollutant treatment is realized, so that materials can be sufficiently reacted, and therefore, a reaction rate is increased; the whole system adopts sealed treatment, so that mercury-containing flue gas does not leak in a reaction process, and therefore, safety is improved; energy consumption needed for heating and drying cold flue gas is reduced, and energy consumption needed for cooling high-temperature flue gas is also reduced, so that production cost is greatly reduced; the production process is guaranteed to be safe and controllable; and process flow is shortened, and energy consumption is reduced.

Description

technical field [0001] The invention belongs to the technical field of solid waste treatment, and in particular relates to a device and method for removing mercury from mercury-containing pollutants. Background technique [0002] Mercury is a silver-white liquid metal, highly volatile at room temperature, and its saturated concentration in the air can reach 3.52-29.5mg / m3. Because mercury has some special physical and chemical properties, it is widely used in chemical and petrochemical industries, pharmaceuticals, pulp and paper, electrical and electronic instruments and other industrial sectors. The actual annual mercury production in my country is about 1100t, and the total mercury consumption is 1100-1500t. With such a wide range of use, about 1.5×104~3.0×104t of mercury is lost to the environment globally every year, polluting the environment through three ways of “exhaust gas, waste residue, and waste water”. [0003] Mercury and its compounds are poisonous substances...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23G5/04F23G5/027F23G5/44F23J15/02B09B3/00B01D53/64B01D53/04
CPCB01D53/0407B01D53/64B01D2253/102B09B3/00F23G5/027F23G5/04F23G5/44F23J15/02
Inventor 张涛姬成岗王金华王统涂学炎毕廷涛
Owner 云南全周环境科技有限公司
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