CN202263497U

CN202263497U - Device for treating waste gas generated after waste plastic treatment

Info

Publication number: CN202263497U
Application number: CN2011201994834U
Authority: CN
Inventors: 杨春生; 杨振坤
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-06-14
Filing date: 2011-06-14
Publication date: 2012-06-06
Anticipated expiration: 2021-06-14

Abstract

The utility model discloses a device for treating waste gas generated after waste plastic treatment. The device comprises a waste gas filtering tank, filtering liquid is filled into the waste gas filtering tank, a waste gas inlet pipe passes through the top of the filtering tank and extends into the filtering liquid, a waste gas outlet pipe is also arranged on the top of the filtering tank, the waste gas outlet pipe is communicated with a cooling system, and a waste liquid discharge pipe is arranged on the cooling system. By adopting the technical scheme, the device has the advantages that: the device is provided with the cooling system, the cooling medium in the cooling system is Freon, and harmful gases in the waste gas passing through the device can be deeply cooled and changed into liquid to facilitate recycling, so that pollution to the surrounding environment is avoided. The device has the advantages of simple structure, convenience in use and low manufacturing cost, and is suitable for retreatment of waste plastic treated gas.

Description

Emission-control equipment after waste or used plastics is handled

Technical field

The utility model relates to a kind of emission-control equipment, relates to the emission-control equipment after a kind of waste or used plastics is handled specifically.

Background technology

Along with developing rapidly of plastics industry, being applied to of plastic products is also more and more wider, has been penetrated in the every field and daily life of national economy.Though plastics bring many facilities for our life, because waste or used plastics is difficult for degraded, pile up like a mountain, become sanitary one big public hazards, and be on the rise, and is referred to as white pollution by people.

At present, the total amount of global plastic products surpasses hundred million tons already, and the plastic products of China also have several ten million tons, and Henan can be put back to receipts company from rubbish and reclaim 4,000,000 tons of waste or used plastics every year.With regard to the China's Mainland, by a medium county statistics, the annual various woven bags such as chemical fertilizer, cement that consume; Various plastic sheetings, mess-tin, bubble wrap plate, various food package films, bottle, box, various scrap rubber, plastic products; Its total amount is about more than 12000 tons; And the annual growth with 13% increases fast, and the problem of waste or used plastics is also with sharp increase, and the contradiction of environment and development will be more and more outstanding.

At present following method is generally adopted in the processing of waste or used plastics: with carrying out landfill or simple the burning after the plastic refuse simple process.Landfill need take the land resource of a lot of preciousnesses, and can pollute surrounding enviroment and groundwater resources; Simple meeting discharge of noxious gases and the residue of burning causes energy huge waste owing to reclaiming the burning mass heat that produces when waste or used plastics burns simultaneously, and all non-good plan of person.

Therefore, commonly used at present is that following method is handled waste or used plastics: at first pour waste or used plastics into agitated reactor, to the agitated reactor heating, make the waste or used plastics fusion, the gas after the fusion enters atmosphere at last successively through filter, liquid chiller.Though through the waste gas after the above-mentioned processing with the partly plastic fusion after gas dissolve in the filtered fluid, also contain hydrogen chloride, non-methane class hydrocarbon, nitride, carbon powder dust, particle, dioxin, furans etc. in the gas of last discharge.Wherein some composition is poisonous, and is pathogenic or carcinogenic to people's physical efficiency.Furans wherein, molecular formula: C4H4O, it is the most simply to contain oxygen five joint heterocyclic compounds, colourless liquid has special smell.Anesthesia and weak spread effect are arranged.Can cause headache, dizziness after the suction, feel sick, vomiting, blood pressure drops, respiratory failure.Chronic influence: liver, renal damage.Dioxin can not burn.Not only have strong carcinogenic, and have extremely strong genotoxicity, immunotoxicity and endocrine toxicity, and increasing research shows that its late injury to the mankind is serious more than the situation that we grasp at present.This than also big more than the 1000 times compound of potassium cyanide toxicity because steady chemical structure, lipophilicity is high, again can not biodegradation, thereby have very high environment anelasticity.No matter be present in air, water still is in the soil, it can both be adsorbed on the particle consumingly, by means of aquatic and the continuous enrichment of land raw food chain and final harm humans.And the harm of more fatal is dioxin is not type of embodying at once in a short time, and it possesses very strong cumulative effect.That is to say that live in refuse-burning plant people on every side for a long time, cancered mode possibly be oneself, also possibly be to of future generation through mutant gene heredity.

Summary of the invention

The purpose of the utility model just is to overcome above-mentioned deficiency the emission-control equipment after a kind of waste or used plastics is handled is provided.

The purpose of the utility model can realize through following technical scheme:

Emission-control equipment after a kind of waste or used plastics is handled; Comprise the waste gas filtering jar; In the waste gas filtering jar filtered fluid is arranged, the top that exhaust inlet pipe passes filtering tank extend in the filtered fluid, also is provided with the waste gas escape pipe at the top of filtering tank; The waste gas escape pipe is communicated with cooling system, and cooling system is provided with the waste liquid discharge pipe.

Emission-control equipment after the above-mentioned old process in plastics; It is characterized in that: the cooling system of stating comprises compressor, condenser and evaporimeter; Medium through in compressor, condenser and the evaporimeter of cooling system is a freon; Compressor is connected with evaporimeter with condenser respectively, and the waste gas escape pipe is communicated with evaporimeter, and the bottom of evaporimeter is provided with the waste liquid discharge pipe.

Emission-control equipment after above-mentioned waste or used plastics is handled is provided with energy-conservation valve between condenser and evaporimeter.

Adopt technique scheme; The utility model has following advantage: owing to be provided with cooling system; Cooling medium in the cooling system is a freon, can the pernicious gas that pass through in the waste gas of the present invention be carried out degree of depth cooling, becomes liquid; Thereby convenient the recycling avoided the pollution to surrounding environment.The utility model is simple in structure, and is easy to use, and its low cost of manufacture is fit to waste or used plastics is handled the processing once more of gas.

Description of drawings

Fig. 1 is the structural representation of the utility model.

The specific embodiment

Emission-control equipment after a kind of waste or used plastics as shown in Figure 1 is handled; Comprise waste gas filtering jar 7, filtered fluid 8 is arranged in the waste gas filtering jar 7, the top that exhaust inlet pipe 6 passes filtering tank 7 extend in the filtered fluid 8; Waste or used plastics is through the agitated reactor fusion; Gas after the fusion leads in the filtered fluid 8 of filtering tank 7 through exhaust inlet pipe 6 successively through filter, liquid chiller at last, and the hydrogen chloride in the waste gas, carbon powder dust and particle are filtered out.Top at filtering tank 7 also is provided with waste gas escape pipe 2; Waste gas escape pipe 2 is communicated with cooling system; Cooling system is provided with the waste liquid discharge pipe, and the waste gas of particles such as eliminating dust enters into cooling system from waste gas escape pipe 2 and carries out degree of depth condensation, discharges from the waste liquid discharge pipe at last.

The cooling system of the utility model comprises compressor 1, condenser 10 and evaporimeter 3; Medium through in compressor 1, condenser 10 and the evaporimeter 3 of cooling system is a freon; Compressor 1 is connected with evaporimeter 3 with condenser 10 respectively; Waste gas escape pipe 2 is communicated with evaporimeter 3, and the bottom of evaporimeter 3 is provided with waste liquid discharge pipe 4, between condenser 10 and evaporimeter 3, is provided with energy-conservation valve 5.

The course of work of the utility model is following: at first pour waste or used plastics into agitated reactor, to the agitated reactor heating, make the waste or used plastics fusion; Gas after the fusion leads in the filtered fluid 8 of filtering tank 7 through exhaust inlet pipe 6 successively through filter, liquid chiller at last, and the hydrogen chloride in the waste gas, carbon powder dust and particle are filtered out; Enter into the evaporimeter 3 of cooling system again from waste gas escape pipe 2,, become liquid through degree of depth cooling; Discharge from the waste liquid discharge pipe 4 of evaporimeter at last, because the medium of cooling system circulation is a freon, freon is the vaporization of under the low temperature about-30 ℃, just seething with excitement; In the process of vaporization, also will absorb great amount of heat, let freon in evaporimeter, vaporize, so the temperature in the evaporimeter just can be reduced to very low; Can be low to moderate below-18 ℃; Freon after the vaporization is through compressor and condenser, and the freon-12 after compressor will be vaporized is compressed into high temperature, high steam, makes the condenser of freon-12 vapor stream outside being arranged on evaporimeter of this HTHP; Heat is dispersed in the evaporimeter outside air; Make cold-producing medium become again in warm highly pressurised liquid, again through device for drying and filtering, capillary to evaporator evaporation (endothermic reaction), so circulation. the freon of cold-producing medium-12 also can constantly recycle.Compressor constantly turns round, and the heat in the evaporimeter will constantly be moved in the evaporimeter outer air and go, and has just reached degree of depth cooling purpose.

The boiling point of furans is 32 °, and the boiling point of dioxin is higher, after the utility model of coming, almost all can be cooled to liquid, the convenient recovery, and liquid dioxin and furans after the recovery conveniently advance processing.

Claims

1. the emission-control equipment after a waste or used plastics is handled; It is characterized in that: comprise waste gas filtering jar (7); Filtered fluid (8) is arranged in the waste gas filtering jar (7), and the top that exhaust inlet pipe (6) passes filtering tank (7) extend in the filtered fluid (8), also is provided with waste gas escape pipe (2) at the top of filtering tank (7); Waste gas escape pipe (2) is communicated with cooling system, and cooling system is provided with the waste liquid discharge pipe.

2. the emission-control equipment after handling according to the said waste or used plastics of claim 1; It is characterized in that: described cooling system comprises compressor (1), condenser (10) and evaporimeter (3); Medium through in compressor (1), condenser (10) and the evaporimeter (3) of cooling system is a freon; Compressor (1) is connected with evaporimeter (3) with condenser (10) respectively; Waste gas escape pipe (2) is communicated with evaporimeter (3), and (3 bottom is provided with waste liquid discharge pipe (4) to evaporimeter.

3. the emission-control equipment after waste or used plastics according to claim 2 is handled is characterized in that: between condenser (10) and evaporimeter (3), be provided with energy-conservation valve (5).