CN201949799U

CN201949799U - Device for controlling dioxin discharge in mode of double cloth bags

Info

Publication number: CN201949799U
Application number: CN2010206918052U
Authority: CN
Inventors: 周亦军; 陆杏军; 李晓东; 莫伊洁; 许镇平; 苏军
Original assignee: Jiangsu Lvjing Environmental Protection Equipment Co Ltd
Current assignee: Jiangsu Lvjing Environmental Protection Equipment Co Ltd
Priority date: 2010-12-30
Filing date: 2010-12-30
Publication date: 2011-08-31
Anticipated expiration: 2020-12-30

Abstract

A device for controlling dioxin discharge in mode of double cloth bags comprises a carbon lime feeding trough, a No.1 Venturi reactor, an active carbon feeding trough, a No.1 cloth bag dust collector, a No.2 Venturi reactor, a No.2 cloth bag dust collector and an exhaust fan, wherein the carbon lime feeding trough is connected to an inlet of the No.1 Venturi reactor; the No.1 Venturi reactor, the No.1 cloth bag dust collector, the No.2 Venturi reactor, the No.2 cloth bag dust collector and the exhaust fan are sequentially connected through a flue; the No.1 Venturi reactor is directly connected with the exhaust fan as a bypass through another flue; the active carbon feeding trough is additionally arranged on an inlet of the No.2 Venturi reactor; and an outlet of the No.2 cloth bag dust collector is connected with the exhaust fan. A dual-cloth-bag type dioxin absorption device provided by the utility model has a compact structure; active carbon is stayed and absorbed to the surfaces of the cloth bags; the contact area is large; the adsorption effect is good; simultaneously, the active carbon can be recycled until saturated; and the system running cost is reduced.

Description

A kind of pair of cloth bag mode controlled the dioxin tapping equipment

Technical field

The utility model belongs to the waste incineration field, specifically is a kind of two cloth bag devices that absorb the dioxin gas that produces after the waste incineration.

Background technology

Dioxin in the atmospheric environment 90% derives from city and industrial refuse and incineration, and the timber of doped fuel, coal, preservative treatment and oil product, various discarded object particularly Biohazard Waste are being easy to generate dioxin when few temperature is lower than 300～400 degrees centigrade.In addition, in the burning process to plastic containing chlorines such as vinyl chloride, chloride rubbish imperfect combustion also very easily generates dioxin.Dioxin is high-melting-point, high boiling material, exists with solid-state at normal temperatures.Its chemical property is stable, in acid or alkali environment, is exactly all very stable under redox not only; Its solubility in water is very low, though show lipophile, the solubility in organic solvent is still lower.Dioxin belongs to chloro ring three arene compounds, can not degrade in human body and can not discharge, and health is had the environmental contaminants of very big threat.It has strong carcinogenicity, and can cause deformity, and the immunologic function and the reproductive function of human body caused damage.Dominating the situation of dioxin is very severe, particularly in the burning field.

At present, sack cleaner is used in the environmental protection field very widely, and sack cleaner is used in combination with the dry type absorption plant, prolong the time of contact of active carbon and flue gas, can effectively absorb dioxin, but for absorbing dioxin, the effect of single-stage sack cleaner not very high.

Summary of the invention

Goal of the invention: the purpose of this utility model is at the deficiencies in the prior art, provides a kind of pair of cloth bag mode to control the dioxin tapping equipment.

Technical scheme: a kind of pair of cloth bag mode that the utility model provides controlled the dioxin tapping equipment, comprise charcoal lime charging spout, venturi reactor, active carbon charging spout, sack cleaner, No. two venturi reactors, No. two sack cleaners and exhaust blower, described charcoal lime charging spout is connected venturi reactor inlet place No. one, and a venturi reactor, a sack cleaner, No. two venturi reactors, No. two sack cleaners are connected by flue successively with exhaust blower; No. one the venturi reactor directly is connected as bypass with exhaust blower by another flue, and flue gas will directly enter exhaust blower from this flue when not using No. two dedusters; The active carbon charging spout adds the porch that is located at No. two venturi reactors, and the outlet of No. two sack cleaners links to each other with exhaust blower.

Wherein, the active carbon charging spout is connected by flue with the bottom of No. two sack cleaners.

Beneficial effect: a kind of pair of cloth bag mode that the utility model provides controlled dioxin tapping equipment compact conformation, after a cloth bag absorbed, absorbed not exclusively time of contact not enough, utilizing the secondary cloth bag to spray with active carbon combines, active carbon stops absorption on the cloth bag surface, and contact area is big, and time of contact is long, advantages of good adsorption effect, simultaneously, the active carbon reusable edible reduces system operation cost until saturated.

Description of drawings

Accompanying drawing is a structural representation of the present utility model.

The specific embodiment

As shown in the figure, a kind of pair of cloth bag mode that the utility model provides controlled the dioxin tapping equipment, comprise charcoal lime charging spout 1, venturi reactor 2, active carbon charging spout 3, sack cleaner 4, No. two venturi reactors 5, No. two sack cleaners 6 and exhaust blowers 7, it is characterized in that described charcoal lime charging spout 1 is connected venturi reactor 2 porch No. one, venturi reactor 2, sack cleaner 4, No. two venturi reactors 5, No. two sack cleaners 6 and exhaust blower 7 are connected successively by flue; No. one venturi reactor 2 directly is connected with exhaust blower 7 by another flue; Active carbon charging spout 3 adds the porch that is located at No. two venturi reactors 5, and active carbon charging spout 3 is connected by flue with the bottom of No. two sack cleaners 6; The outlet of No. two sack cleaners 6 links to each other with exhaust blower 7.

Be provided with charcoal lime charging spout 1 before the sack cleaner 4, be mainly used in the dioxin that absorbs in the flue gas, a small amount of sour gas and small-amount free heavy metal, charcoal lime enters sack cleaner 4 No. one with flue gas, charcoal lime is drawn to cut by a sack cleaner 4 and is attached to the cloth bag surface, reaction lengthening effective time, fine dusts all is collected in a sack cleaner 4.In the sack cleaner 4 owing to contain dust in the flue gas, and pulverized limestone, the dioxin assimilation effect is bad, therefore, dust is follow-up to add an active carbon charging spout 3 again and combines with No. two sack cleaners 6 collecting, and further absorbs dioxin.Active carbon sprays in the flue, fully contacts with flue gas, enters No. two sack cleaner 6 backs and is cut down by cloth bag, and active carbon stops on the cloth bag surface, and adsorption time is long, advantages of good adsorption effect.Active carbon under No. two sack cleaner 6 is collected is after unloader unloads, and circulation enters No. two venturi reactors 5 that are provided with before the secondary sack cleaner 6.

A kind of pair of cloth bag dioxin absorption plant that the utility model provides; the method and the approach of this technical scheme of specific implementation are a lot; the above only is a preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications; for example add activated carbon charging spout etc.; these improvements and modifications also should be considered as protection domain of the present utility model, and all available prior art of each part not clear and definite in the present embodiment is realized.

Claims

1. two cloth bag modes are controlled the dioxin tapping equipment, comprise charcoal lime charging spout (1), a venturi reactor (2), active carbon charging spout (3), a sack cleaner (4), No. two venturi reactors (5), No. two sack cleaners (6) and exhaust blower (7), it is characterized in that described charcoal lime charging spout (1) is connected a venturi reactor (2) porch, a venturi reactor (2), a sack cleaner (4), No. two venturi reactors (5), No. two sack cleaners (6) and exhaust blower (7) are connected successively by flue; A venturi reactor (2) directly is connected with exhaust blower (7) by another flue; Active carbon charging spout (3) adds the porch that is located at No. two venturi reactors (5), and active carbon charging spout (3) is connected by flue with the bottom of No. two sack cleaners (6); The outlet of No. two sack cleaners (6) links to each other with exhaust blower (7).

2. according to claim 1 pair of cloth bag mode controlled the dioxin tapping equipment, it is characterized in that described active carbon charging spout (3) is connected by flue with the bottom of No. two sack cleaners (6).