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Circular treatment apparatus for treating mercury-containing sludge

A technology for recycling and sludge treatment, applied in sludge treatment, water/sludge/sewage treatment, dehydration/drying/concentrated sludge treatment, etc. waste of resources

Pending Publication Date: 2019-01-18
中科协创环境科技江苏有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the cost of treating mercury-containing sludge is high, and it is difficult to completely remove mercury, and mercury is difficult to recycle, resulting in waste of resources

Method used

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  • Circular treatment apparatus for treating mercury-containing sludge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] see figure 1 , a circulating treatment device for treating mercury-containing sludge, comprising a heat treatment room 1, a mercury recovery room 2 and a mercury storage room 3;

[0019] Described heat treatment chamber 1 comprises chamber body, and bowl-shaped strainer 4 is arranged in described chamber, and described bowl-shaped strainer 4 upper surface is fixed on the rotating shaft 5, and described rotating shaft 5 is connected with rotating motor 6, and described bowl Bowl-shaped filter screen bottom is provided with opening 7 with valve; Described bowl-shaped filter screen 4 below is transition area 8, and the bottom of described transition area 8 is provided with dividing plate 9, and the first stirring device 10 is fixed on described dividing plate 9, so A heating element 11 is provided at the bottom of the partition 9, and an outlet 12 with a valve is provided on the edge of the partition 9; a waste water outlet 13 is provided on the chamber side wall of the tr...

Embodiment 2

[0022] see figure 1 , as an improvement of the present invention, a gas detection device 26 is provided on the gas outlet 22 . It is used to detect whether there are harmful substances such as mercury in the exhaust gas.

Embodiment 3

[0024] see figure 1 , as an improvement of the present invention, the outer wall of the mercury storage chamber 3 is provided with an interlayer 27, the interlayer 27 is filled with a cooling medium, and the interlayer 27 communicates with a circulating water pipe 28. Avoid liquid mercury volatilization into gaseous state, resulting in leakage and pollution.

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Abstract

The invention belongs to the technical field of environment-friendly equipment, and particularly relates to a circular treatment apparatus for treating mercury-containing sludge. The circular treatment apparatus comprises a heat treatment chamber, a mercury recovery chamber and a mercury storage chamber; a bowl-shaped filter screen is arranged in the heat treatment chamber, the upper surface of the bowl-shaped filter screen is fixed on a rotating shaft, and the bottom of the bowl-shaped filter screen is provided with an opening with a valve; a separation plate is arranged below the bowl-shapedfilter screen, the separation plate is fixedly provided with a first stirring apparatus, the bottom of the separation plate is provided with a heating element, and the edge of the separation plate isprovided with an outlet with a valve; a high-temperature heating area is arranged below a transitional area; a low temperature liquid spraying pipe, an active carbon absorption layer, a photocatalystlayer and an ultraviolet light source are successively arranged inside the mercury recovery chamber and above a waste inlet; an inverted-conical-shaped precipitation trough is arranged below the waste gas inlet and inside a shell, a separation pipe is arranged on the center of the bottom of the precipitation trough, the separation pipe is provided with an adjusting valve, and the lower end of theseparation pipe is connected with the mercury storage chamber.

Description

technical field [0001] The invention belongs to the technical field of environmental protection equipment, in particular to a circulation treatment device for treating mercury-containing sludge. Background technique [0002] Mercury, commonly known as "mercury", is a very rare element in the earth's crust; mercury is released into the atmosphere through the transpiration of soil and plants, and mercury in the gas phase can also transfer to liquid and solid phases; for example, after mercury enters water, Dissolved in water or enriched in organisms through physical, chemical, biological and other actions, or sink into the sediment, or volatilize into the atmosphere; mercury is one of the most toxic heavy metal elements in the environment, and the toxicity of various mercury compounds is different It is very large; under the action of microorganisms, inorganic mercury can be converted into more toxic methylmercury, stupid mercury and dimethylmercury, etc.; anaerobic bacteria i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/127C02F11/13B01D53/00B01D53/86C02F101/20
CPCB01D53/002B01D53/04B01D53/86C02F11/12C02F11/127C02F2101/20B01D2253/102B01D2255/802
Inventor 陈杨
Owner 中科协创环境科技江苏有限公司
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