CN200985326Y

CN200985326Y - Device for purifying and recovering tail-gas in preparing charcoal

Info

Publication number: CN200985326Y
Application number: CN 200620021259
Authority: CN
Inventors: 邹本清
Original assignee: 曲海英
Priority date: 2006-07-19
Filing date: 2006-07-19
Publication date: 2007-12-05
Anticipated expiration: 2016-07-19

Abstract

The utility model discloses a recovery device for exhaust gas generated by a course of carbon fabrication which belongs to the technical field of engineering equipment which uses biomass to fabricate the carbon by pyrolysis without pollution generation. The utility model consists of a discharge port of exhaust gas, a cyclone (19), a cooling condenser (5), a steam-liquid separator (2), a plurality of clarifiers (12), (13) and (14), a tank of pyroligneous liquor (1), a gas storage device (11), a tank of wood tar (20) and a fan (3) which constitute the utility model by the connection of a conductor and a plurality of valves (15), (16), (17) and (18). The reclaimed exhaust gas of carbon fabrication can become clean energy, which can act as the combustible gas to become self-collected energy, and reclaim the chemical raw material including wood tar and pyroligneous liquor. In addition, the utility model eliminates the pollution, reforms the conventional process, shortens the production cycle of carbon fabrication and raises the yield rate by double to thirty times.

Description

Charcoal processing tail gas clean-up retrieving arrangement

Technical field: the utility model belongs to traditional forest chemical tail gas clean-up retrieving arrangement, also is the environment-friendly engineering equipment of modern biomass pyrolytic charcoal processing.Belong to green chemical industry new science field.The modern biomass resource of particularly suitable is as branch or shive, straw, multitudinous slag ... go charcoal processing again Deng the compressed moulding of agricultural cellulosic waste residue drying, the purification of the tail gas that is produced, retrieving arrangement.

Technical background: China's charcoal processing is with a long history, and major equipment one is an internal heat type carbonizing apparatus earth kiln, has occurred charcoal machine and movable carbonization stove afterwards on the market again, and the 2nd, the retort of external-heat is less.All do not establish exhaust gas cleaner, contaminate environment during production.

(but the utility model patent " effective botanic charred furnace " that Zou Shi family releases is the pyrolysis environmental protection equipment of domestic current a kind of modern biomass charcoal processing resource, win national emphasis product innovation, and included in " the practical achievement project compilation of new and high technology " by national science and technology competent authorities, item has found in competent authorities of National Ministry of Finance, but dies young in special Economic development unprovoked in period technical problem.Country releases the renewable energy source method in time, the process of still needing.So distribute charcoal processing enterprise in all parts of the country or charcoal farming, charcoal processing is seriously polluted, can only collect 30% high-quality charcoal, and that will discharge the tail gas pollution environment about 70%, and China once produced 3,000 ten thousand tons of charcoals in 1958, became source of pollution the biggest in the world in this area.Ministry of Forestry's explicit order bans the use of timber and produces charcoal, the environmental protection legislation is also forbidden to stop to produce, some residents complain to the higher authorities about an injustice and request fair settlement because of the harm of charcoal factory, but suffering from, environmental administration do not have the Pollution abatement scheme, the industrial and agricultural production development, living standards of the people improve, and the influence of traditional culture needs the charcoal amount to heighten, currently domesticly disperse no big charcoal factory because of resource, 10,000,000 of small-sized charing equipment 1-2 keep the output about 1,000 ten thousand tons, are difficult to satisfy the foreign trader and want to buy, the charcoal valency is high, the effect of market economy constantly has new charcoal factory and charcoal farming, drops into the industry, does not draw modern technique but there is money from developed country.For pushing forward China's charcoal processing industry scientific-technical progress comprehensively, fully implement a scientific outlook on development, realize the man's world harmony, release the present invention.

Summary of the invention: the utility model is exactly for existing all kinds of charcoal processing enterprises and charcoal farming, and the recovery exhaust pollutant is provided, and is the Environmentally-sound technology equipment of industrial chemicals or clean energy.

The utility model improvement charcoal processing is polluted the technical scheme that is adopted and is: at the smoke outlet of existing equipment for preparing charcoal, connect cyclonic separator, collect not capacitive wood tar oil, the storage tank of making a bet.Flow into cooler condenser through cleaner gas, tell combustible gas and enter gas storage device or directly supply dry.Operations such as charcoal processing are done the energy; Isolated solubility tar and wood vinegar import storage tank through upflow tube, do industrial chemicals.Realized that whole recovery pollutents (charcoal processing tail gas one by one) have realized cleaner production.Simultaneously, adopt combustion gas to burn and chew the quality that improves charcoal, adopt inner cold technology to shorten the charcoal processing time.

Effective effect of the present utility model is for all kinds of charcoal processing tail gas of current China provide the green technology that is converted into wood tar oil, wood vinegar, inflammable gas equipment, realizes zero release, eliminates environmental pollution.The pollutent that is discharged is converted into clean energy or industrial chemicals, has improved the charcoal processing economic benefit greatly, go to realize the man's world harmony.

Description of drawings: Fig. 1 is the new structural representation of this practicality, and Fig. 2 is that the combustion gas burning is chewed diagrammatic cross-section, and Fig. 3 is that charcoal processing device exhaust discharge outlet and charcoal processing tail gas clean-up retrieving arrangement connect synoptic diagram.In Fig. 1 the pyroligneous liquor storage tank, the 2nd, vapour liquid separator, the 3rd, blower fan, the 4th, the combustible gas pipeline, the 5th, cooler condenser, the 6th, combustible gas conduit, 7 tail gas relief outlet pipelines, the 8th, gas conduct pipe, the 9th, cooling water pipeline, the 10th, upflow tube, the 11st, gas storage device, 12, the 13, the 14th, cleaner, the 15,16,17, the 18th, valve.The 19th, cyclonic separator, the 20th, wood tar oil storage tank.In Fig. 2: the 16th, gas conduct pipe, the 2nd, combustion gas is burnt and is chewed.In Fig. 3: the 1st, the exhaust port of charcoal processing device, the 7th, exhaust emission tube road.

Specific embodiments:

One, the tail gas recycle to the carbonizing apparatus of internal heat type has two kinds of schemes:

(1) keeps former technology.As long as the exhaust smoke hole of former carbonizing apparatus 7 is joined with originally installing pipes, drive water coolant (9) pass valve (16,17) and just can pass through cyclonic separator (6) in proper order, isolate wood tar oil, passed through cooler condenser (5) inflammable gas simultaneously by cleaner (12,13,14) again and stored in gas storage device (11) through valve (18), wood vinegar from gas-liquid separator (2) through upflow tube (10) be stored in the former charing equipment of storage tank (1) and technology constant, combustible gas, wood tar oil, the thick meter of pyroligneous liquor have been increased income and are 2 times of charcoal benefit, realize zero release, eliminated environmental pollution.

(2) change technology, only needing to set up the coal gas burning at former carbonizing apparatus chews, the same operation, still need exhaust smoke hole 7 is joined with originally installing pipes, close valve (17) for water coolant (9), drive valve (16), the combustible gas deficiency also will be driven valve (18), through cyclonic separator (6), isolate wood tar oil equally, again by cleaner (12,13,14) having passed through cooler condenser (5) inflammable gas simultaneously chews through valve 16 inflow coal gas burnings, simultaneously must be with former stifled tight to pore, raw material in the shut-off valve (16) when stove Nei Wenduda charing purpose, former like this carbonizing apparatus is not done fuel and is consumed, and has just improved the output of charcoal.As by the process goal requirement, close valve (16), open valve (17) again, then shorten the cooling time of charcoal processing, improved the productivity of carbonizing apparatus, by former 7-17 days, foreshorten to 2-7 days.Pyroligneous liquor contains the dissolubility wood tar oil, injects storage tank (1) through gas-liquid separator (2), upflow tube (10), has realized zero release, has reclaimed the above-mentioned energy and industrial chemicals, has eliminated environmental pollution.

Two, to the recovery of the carbonizing apparatus tail gas of external-heat

The carbonizing apparatus of external-heat, be heated parts retort, discharge the tail gas mouth by pipeline (7), connection cyclonic separator (6) is isolated wood tar oil and is deposited following storage tank in, have only when equipment failure such as water coolant deficiency, or hot gas is when using the value that is worth the combustible gas be higher than its generation and pyroligneous liquor, or raw material drying, and charring furnace is anxious when treating energy heating, suitable control valve (16,17,18), but clear way valve (15) is delivered to required place with hot combustible gas by utilidor, is made for the energy.Otherwise water coolant (9) left by shut-off

valve

15,17,18, and gas is through cleaner (12,13,14) difference layout, reduce fluid resistance, improve decontamination effect improving again, pass through cooler condenser (5) simultaneously, inflammable gas is sent to cooking stove automatically, from adopting the energy, finish up to charing, the cooking gas surplus can appropriateness be driven valve 18 during this time, rises flammable gas-reservoir (11) standby, as not establishing this device, can directly use for it.After carbonization temperature reaches 450 ℃, to the charring process requirement, grasp the duration and degree of heating according to the purposes difference of charcoal, valve (17) left by shut-off valve (16), just can cool off fervid charcoal automatically fast, shortens the charcoal processing cycle to arrive 10-20 hour, can not establish blower fan.As set up blower fan, and make speed of cooling faster, the charcoal processing cycle is a 9-12 hour/stove, just the outward appearance blackening of charcoal lacks gloss.Below fervid ground charcoal temperature drop to 50 ℃, close water coolant (9), charcoal is taken out, place old charcoal chamber, just make cloth standard one-level promulgated by the ministries or commissions of the Central Government (high-quality) charcoal, the pyroligneous liquor that is generated contains solubility tar, constantly flows into storage tank (1) from vapour liquid separator (2) through upflow tube (10) all the time.Realize zero release, reclaimed wood tar oil, combustible gas and pyroligneous liquor, improved benefit, eliminated environmental pollution, realized the man's world harmony.

So in the face of the present situation of China's charcoal processing industry: with timber or farming, the charcoal processing of woods cellulosic waste residue, the internal heat type carbonizing apparatus that is adopted or the carbonizing apparatus of external-heat---the device of whole contaminate environment, all provide and administered the technical equipment that pollutes, and pollutent---tail gas is converted into clean energy (inflammable gas and high-quality charcoal) and industrial chemicals (wood tar oil and wood vinegar), and reformed traditional technology, shorten the charcoal processing production cycle, improved work efficiency 2-30. doubly.Eliminated environmental pollution.

Claims

1, a kind of charcoal processing tail gas clean-up retrieving arrangement is characterized in that cyclonic separator (19), cleaner (12,13,14), cooling condensation separator (5) link to each other and form with wood tar oil storage tank (20), wood vinegar storage tank (1), gas storage device (11) by conduit, upflow tube (10) and valve (15), (16), (17), (18) respectively.

2, charcoal processing tail gas clean-up retrieving arrangement according to claim 1, it is characterized in that: the exhaust smoke hole of former carbonizing apparatus and this device pipe are led (7) and are joined, drive water coolant (9) shut-off valve (16,17), order is isolated wood tar oil, streamer wood tar oil storage tank (20) by cyclonic separator (6).

3, charcoal processing tail gas clean-up retrieving arrangement according to claim 1 is characterized in that: be stored in storage tank (1) from gas-liquid separator (2) through upflow tube (10) through cleaner (14) wood vinegar.

4, charcoal processing tail gas clean-up retrieving arrangement according to claim 1 is characterized in that: isolated wood tar oil by cleaner (12,13,14), has passed through cooler condenser (5) more simultaneously, and inflammable gas is stored in gas storage device (11) through valve (18).

5, charcoal processing tail gas clean-up retrieving arrangement according to claim 1, it is characterized in that closing valve (17) and drive valve (16), the combustible gas deficiency also can be driven valve (18), isolate the tail gas of wood tar oil, pass through cooler condenser (5) simultaneously by cleaner (12,13,14) again, inflammable gas flows into the coal gas burning through valve (16) and chews.

6, charcoal processing tail gas clean-up retrieving arrangement according to claim 1 is characterized in that: when the charing shut-off valve (16) that finishes is opened valve (17) again, then shorten the cooling time of charcoal processing.

7, charcoal processing tail gas clean-up retrieving arrangement according to claim 1 is characterized in that: suitable control valve (16,17,18), but clear way valve (15), hot inflammable gas is delivered to required place for doing the energy by utilidor.

8, charcoal processing tail gas clean-up retrieving arrangement according to claim 1 is characterized in that: cleaner (12,13,14) distributes respectively.

9, charcoal processing tail gas clean-up retrieving arrangement according to claim 1 is characterized in that: an internal heat type, two external-heat carbonizing apparatus institute discharge tail gas can both be passed through cyclonic separator (19) cooler condenser (5) successively, and auxiliary facility, and resource is all reclaimed.