CN202415490U - Pyrolysis gasification comprehensive conversion and utilization system for biomass waste resources - Google Patents

Abstract

The utility model discloses a pyrolysis gasification comprehensive conversion and utilization system for biomass waste resources, comprising pyrolysis equipment, a gas supply device, multifunctional heat exchange equipment and a residual heat supply device, wherein the gas channels of the multifunctional heat exchange equipment are respectively connected with the pyrolysis equipment and gas supply device, and the condensate channel of the multifunctional heat exchange equipment is connected with the residual heat supply device; the method adopted by the system is as follows: biomass waste raw material is fed to the pyrolysis equipment to be pyrolyzed into mixed gas containing combustible gas, tar gas, acetic acid gas and water vapor; the mixed gas is sucked into the multifunctional heat exchange equipment to be subjected to heat exchange, then the combustible gas and tar acetic acid mixed liquid are separated after heat exchange, hot water is obtained, the hot water and the combustible gas are respectively utilized by the residual heat supply device and the gas supply device, and gas, heat and hot water are supplied to residents in the centralized manner; and the acetic acid can be used as biological foliar fertilizer or biological pesticide or biological sterilizer, and the tar can be used as industrial raw material. The comprehensive conversion collection and utilization rate of the biomass waste resources is close to 100%.

Description

The comprehensive trans-utilization of biomass waste resource pyrolytic gasification system

Technical field

The utility model relates to the Apparatus and method for that utilizes of waste resources such as a kind of industrial organic solid-state castoff, agro-ecology matter waste; Particularly relating to a kind of is the main comprehensive trans-utilization Apparatus and method for of biomass waste resource pyrolytic gasification with the agricultural crop straw, also is the comprehensive trans-utilization Apparatus and method for of a kind of worker's organic solid-state waste resource pyrolytic gasification.

Background technology

China is a large agricultural country, in agriculture prodn and processing of farm products, has produced biomass resources such as a large amount of agricultural crop straws, fervent slag.Traditional utilizes mode mainly as home energy source, feed, fertilizer, industrial raw material and material of construction.Fast development along with agrotechnique modernization and rural economy; The life in the countryside level significantly improves and the sudden change of the mode of production of living; Rural households select the ratio of commercial energy resource improving constantly; The quantity of agricultural crop straw as the energy is constantly descended, and commercial energy resource (like coal, liquefied gas etc.) has become main cooking and has used ability.Culture institute in order to biomass straw, the weeds feed is substituted by commercial feed, and the required biomass organic fertilizer of agriculture prodn is substituted by inorganic fertilizer, and the used stalk of life of farmers and agriculture prodn sharply descends.Simultaneously, agricultural crop straw output is with farm crop, particularly the increase of food crop output and extremely speed increase.Drug on the market causes that stalk is abandoned in the field, the house courtyard for agricultural crop straw, even directly burned in the field.The stalk in abandonment courtyard and field in the house can influence environment and initiation fire, causes pollution of waterhead.Crop straw burning can polluted air in the open, the harm people ' s health, and burning can influence traffic safety near airport, highway especially, causes the aircraft grounding, the car tracing cauda collision, shade tree such as is burnt at adverse consequences.Although various places government has all put into effect the rules of forbidding the stalk open fire at present, the open fire agricultural crop straw still remains incessant after repeated prohibition, and environment causes severe contamination, causes the tremendous economic loss to society.

When biomass resources such as stalk are wasted; The combustion gas of using in China's industrial and agricultural production, fuel oil, heat energy, coal, oil, etc. present main fossil energy reducing day by day; Famine, energy dilemma have become the bottleneck problem of the world and social development.It is the problem that presses for solution at present.

China has a large population and a few land, particularly the arable land of agricultural needs a large amount of agricultural chemicals, inorganic fertilizer by life-time service for improving grain near red line in agriculture prodn, reaches prevention and elimination of disease and pests, improves the purpose of grain yield.Because the life-time service of agricultural chemicals, inorganic fertilizer, utilization ratio is low, causes residual in soil and farm crop.Cause soil, water source, grain, vegetables, fruit to pollute.Pesticide residue in grain, vegetables, the fruit have jeopardized health of human body safety.Affect the raising of life in the countryside level and quality.

Along with fast development of society, people more and more add attention for energy-saving and emission-reduction and ecological environmental protection, constantly seek to use the new energy, control atmosphere pollution, and energy-saving and emission-reduction reduce Greenhouse effect.The technology that comprehensively is converted into available stock with biomass waste resources such as agricultural crop straw, ight soil, fervent slags has caused showing great attention to of departments at different levels of government.

The thermo-cracking of biomass is meant the thermal destruction of biomass (comprising sawmilling, firewood, weeds, pine needle leaf, crop material, edible fungi residues) under the condition of anoxic or limited oxygen supply fully, finally forms the process of inflammable gas, tar, acetic acid and heat.The thermal-cracking method of biomass comprises that limit oxygen heat-transmission solution, limit oxygen charcoal (gas) heat-transmission solution, over dry heat up in a steamer pyrogenic silica; Different according to reaction conditions and product, biomass pyrolytic equipment divide biomass pyrogenation gasification stove, the biomass pyrolytic carbon (gas) of the oxygen that exceeds to change stove and anoxybiotic destructive distillation pyrolytic carbon (gas) change stove etc. again.

The biomass pyrolytic technology is the biomass resource trans-utilization technology of present comparative maturity, but the purification of pyrolysis conversion product, separation, collecting device in the prior biological matter pyrolysis gasifying device are perfect not enough, and conversion product collection utilization ratio is not high.For example the purification of pyrolysis conversion product, separation, the collecting device in the prior biological matter pyrolysis gasifying device mostly adopts wet (washing pouring) method purification separation.For example the patent No. is 200720013160.5 Chinese patent, and wherein the inner cooling filter that water is housed of i.e. employing cools off and filters, and before getting into cooling filter, also will pass through the drip washing of spray thrower in the cleaner.Tar, acetic acid, drench water and together discharge, both can not get effective utilization, caused water source and soil pollution again with washing.In biomass pyrolytic, be accompanied by the generation of a large amount of heats, after need lowering the temperature, could use the high-temperature combustible gas body that carries heat, drench in the temperature-fall period washing, heat often drenches water and together discharges with washing, and can not get effectively utilizing and has been wasted.Therefore, design a kind of brand-new biomass waste resource pyrolytic gasification utilization system and method, replace traditional energy utilization pattern, be at present the problem that will study.

This shows, waste resources such as above-mentioned prior biological matter waste utilize Apparatus and method in product structure, method of manufacture and use, obviously still have inconvenience and defective, and demand urgently further improving.In order to solve the problem of above-mentioned existence; Relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly; But do not see always that for a long time suitable design is developed completion; And common product and method do not have appropriate structure and method to address the above problem, and this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found a kind of new comprehensive trans-utilization of biomass waste resource pyrolytic gasification system, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.

Summary of the invention

The utility model technical problem to be solved is to overcome existing existing defective of agricultural wastes conversion using and drawback; Provide a kind of can be fully, make full use of the comprehensive trans-utilization system and method for pyrolytic gasification of industrial organic solid-state castoff, agro-ecology matter waste material, have the advantage that trans-utilization is complete, cost is low, effective.

The utility model is to solve the problems of the technologies described above the technical scheme that is adopted to be: the comprehensive trans-utilization of biomass waste resource pyrolytic gasification system; Comprise pyrolysis plant and air feeder; Also be provided with multifunctional heating switching equipment and Yu Wen heating plant; Be provided with the insulation thermal insulation layer at multifunctional heating switching equipment outside surface; Be provided with gas passage and condensation water channel in it, the gas passage import in the multifunctional heating switching equipment is connected with the combustion gas output tube of pyrolysis plant through the solid and gas tripping device, and the gas passage outlet is connected to air feeder through air inducing equipment; Connecting pipeline outside surface at solid and gas tripping device and solid and gas tripping device is provided with the insulation thermal insulation layer; Surplus temperature heating plant comprises retaining surge tank, in-line pump I, boiler and heating network; Condensation water channel import in the multifunctional heating switching equipment is connected with the water outlet of retaining surge tank through valve A, and the condensation water channel outlet is connected with the water-in of retaining surge tank; The water outlet of retaining surge tank is connected with condensation water channel import in the multifunctional heating switching equipment through boiler and heating network successively, and in-line pump I is arranged on the water-filled pipe of surplus temperature heating plant; On the connecting pipeline of heating network and condensation water channel import, be provided with valve B; Be provided with the curdled liq outlet in multifunctional heating switching equipment bottom, gas passage is connected with the standing separation device through the curdled liq outlet.

The purpose of the utility model and solve its technical problem and also can adopt following technical measures further to realize.

The outside of described multifunctional heating switching equipment also is provided with the insulation thermal insulation layer.

Described standing separation device comprises the standing separation chamber, on the standing separation chamber, is provided with BO outlet, acetic acid outlet and lightweight oil outlet from the bottom to top successively.

Described multifunctional heating switching equipment is made up of one group of multifunction heat exchanger, perhaps is made up of multifunction heat exchanger parallel connection more than two groups; Wherein every group of multifunction heat exchanger by a multifunction heat exchanger or more than two placed in-line multifunction heat exchanger form; Series system is: the gas passage outlet of previous multifunction heat exchanger connects the gas passage import of a back multifunction heat exchanger, and the condensation water channel import of previous multifunction heat exchanger connects the condensation water channel outlet of a back multifunction heat exchanger; Parallel way is: each organize in first multifunction heat exchanger the outlet of gas passage import and condensation water channel respectively and connect, each organize in last multifunction heat exchanger gas passage outlet and condensation water channel import respectively and connect.

Described multifunction heat exchanger, its condensation water channel import is arranged on the bottom, and the condensation water channel outlet is provided with top.

Native system also is provided with the B-grade condensation device; The gas passage outlet of multifunctional heating switching equipment is connected with air inducing equipment through the gas passage of B-grade condensation device; The condensation water channel import of B-grade condensation device is connected with the water source through in-line pump II, and the condensation water channel outlet of B-grade condensation device is connected to the water source.

Also be provided with the purification equipment for purifying on the connecting pipeline of described air inducing equipment and air feeder.

Described air inducing equipment, through having the air-flow feedback pipe connection of regulated valve and examination firearm, air-flow feedback pipeline is provided with the examination firearm between its wind pipe and intake stack.

Described air inducing equipment, its wind pipe also are connected with gas emptying assembly through valve, and the top of gas emptying assembly is provided with blow-down pipe, in gas emptying assembly, is provided with the trickle shower nozzle.

The method that adopts the comprehensive trans-utilization of biomass waste resource pyrolytic gasification system to carry out comprehensive utilization of resources comprises the steps:

Step 1, at first biomass material is sent into pyrolysis plant and light; The negative pressure of utilizing air inducing equipment in pyrolysis plant and multifunctional heating switching equipment, to produce sucks pyrolysis plant to provide reaction required vaporized chemical with air, and the high temperature pyrolysis that biomass material utilizes oxidation to form in pyrolysis plant produces the mixed gas that contains inflammable gas, tar gas, acetic acid G&W steam;

Step 2, utilize negative pressure that air inducing equipment produces that the mixing gas of inflammable gas, tar gas, acetic acid G&W steam in the pyrolysis plant is together sucked the gas passage of multifunctional heating switching equipment; Mix gas get into behind the gas passage with condensation water channel in water of condensation carry out thermal exchange, heat is passed to water of condensation, form hot water; After mixing the gas cooling, tar gas, the cooling of acetic acid G&W steam condense into tar, acetic acid mixed solution;

Step 3,

(a), the utilization of inflammable gas: utilize air inducing equipment that inflammable gas is sent into air feeder, to the boiler of combustion gas user and Yu Wen heating plant combustion gas is provided through air feeder;

(b), the utilization of tar, acetic acid: condense into mixing liquid after the tar-acetic mixing steam cooling in the gas passage, the curdled liq outlet that tar, acetic acid mixed solution are provided with from multifunctional heating switching equipment bottom gets into the standing separation device; Tar, acetic acid mixed solution staticly settle in the standing separation device, because the objectionable intermingling of each composition and proportion is different, obtains BO, acetic acid and lightweight oil behind the tar-acetic mixed solution precipitated and separated and are collected utilization;

(c), the utilization of heat: water of condensation gets into the retaining surge tank after in condensation water channel, absorbing heat; Water temperature in the retaining surge tank is raise, and delivering to heating network again after utilizing in-line pump I that the hot water in the retaining surge tank is delivered to boiler and heated provides heating installation for the user; Utilize the retaining surge tank hot water service to be provided to hot water pipe net; Water of condensation in heating network after the heat radiation is sent into the multifunctional heating switching equipment again and is carried out waste heat circulation next time.

Adopt the comprehensive trans-utilization of the pyrolytic gasification system of the utility model to realize the trans-utilization on the spot of stalk in the agriculture prodn, use as urban residents' cooking, bathing, heating through pyrolysis generation inflammable gas and heat; Tar can change into biological gasoline diesel oil, and acetic acid can be used as crops pesticide or sterilant or foliage fertilizer and supplies agriculture prodn to use; Can solve the pollution problem that the agricultural crop straw surplus causes like this, change into new utilization of resources mode again.The comprehensive trans-utilization of the pyrolytic gasification of the utility model system also be applicable to simultaneously industrial solid organic waste (as, plastics bag, Plastic Bottle, Polywoven Bag) trans-utilization.

The beneficial effect of the utility model is: pyrolysis plant produces in the present technique scheme high-temperature combustible gas body and tar-acetic mixing steam are passed to the water of condensation in the condensation water channel with heat in the multifunctional heating switching equipment; Condense into liquid after the cooling of tar-acetic mixing steam and flow into the standing separation device from the bottom, when accomplishing cooling, promptly accomplished the separation of tar-acetic mixing steam.Adopt this mode not only can sound tar-acetic to be separated, and because what adopt is that dry method is separated, isolated tar and acetic acid can fully be recycled.The heat that is passed to water of condensation can heat to the user through heating network, and heating system comprises heating installation and hot water etc., has made full use of the energy in the biomass resource.Condensation water channel import in the multifunctional heating switching equipment is connected with the water outlet of retaining surge tank through valve A; And on the connecting pipeline of heating network and condensation water channel import, valve B is set; Can realize the access or the excision of surplus temperature heating plant through the switching of valve A and valve B, to adapt to the different seasonal needs.The supply of hot water can be through hot water pipe net being inserted the retaining surge tank, through retaining surge tank hot-water supply.The multifunctional heating switching equipment that the present technique scheme adopts is composed in series by a plurality of multifunction heat exchangers; And the flow direction of the flow direction of gas and water of condensation is opposite in the multifunctional heating switching equipment; Gas is fully cooled off; Also can guarantee condensable gas (tar-acetic mixing steam) all condensation and sedimentation, thereby condensable gas is thoroughly separated from combustion gas, guarantee the purity of combustion gas.In the present technique scheme, for the temperature that guarantees residual heat heating simultaneously and the cooling temperature of gas, the B-grade condensation device can also be set, the B-grade condensation device does not only reach at gas temperature and uses when cooling requires, and guarantees cooling performance.With the air outlet of air inducing equipment and blast inlet through having the air-flow feedback pipe connection of valve; Can when carrying air quantity not reach to require, the air communication of output be crossed the blast inlet that air-flow feedback pipeline feeds back to air inducing equipment; Thereby guarantee the normal operation of air inducing equipment, improve the stability of flow delivery systems.For purifying gas; Can on the connecting pipeline of gas passage import in the combustion gas output tube of pyrolysis plant and multifunctional heating switching equipment the solid and gas tripping device be set; Get into the multifunctional heating switching equipment behind the gas process solid and gas tripping device that produces, the suspended solid in the gas is isolated through the solid and gas tripping device.The purification equipment for purifying is set on the connecting pipeline of air inducing equipment and air feeder; Can prevent that dust granules or tar steam from increasing unusually and cause filtering not exclusively through purifying equipment for purifying; And in purifying equipment for purifying, water-bath type dust removal and filtration assembly can be set; Can prevent fuel gas return-flow in the filtering effect of playing water seal simultaneously.In sum, the utility model had both been accomplished the combustion gas utilization of biomass resource pyrolytic gasification through simple, practical system, thoroughly separated again and had collected tar and acetic acid, had realized effective utilization of bio-oil and biomass wood vinegar; And effectively utilized the waste heat in the pyrolytic process, reached the purpose that transforms and utilize biomass resource fully.

This law also has the following advantages:

1, need do pre-treatment hardly to agriculture and forestry organic waste materials such as the stalks of farm crop, faggot, rice husks and carry out pyrolysis, obtain stalk charcoal, combustion gas, tar, wood vinegar, heat energy.Through stalk charcoal, combustion gas, wood vinegar, tar are made up utilization again, process fertilizer, combustion gas and fuel oil, heat energy.Make the agricultural waste utilization rate reach 100%.

2, equipment is simple, continuously-running, and maintenance cost is low; Manufacturing cost reduces relatively, thereby can significantly reduce running cost, increases economic efficiency; On practicality of using and cost benefit, it is required to meet rural economic development really fully, quite has the industry development utility value.

3, open up the new energy access in rural area, used fertilizer, combustion gas, fuel oil, the problem of heat energy famine in solving agricultural and forestry production and living.Alleviated the immense pressure of using conventional traditional energy environmental pollution.

4, solved crop straw burning; The livestock and poultry manure huddles and leaves about; The bottleneck problem of the agriculture grain of residual and seriously polluted influence that the long-term application chemical fertilizer causes to air, water source, soil, vegetables, melon and fruit safety in production and health of human body safety has been improved life in the countryside and ecotope, has improved life of farmers level and quality; Realized the purpose of agricultural wastes " it is clean to turn waste into wealth, eat dried press for extracting juice " has been promoted the new countryside construction development.Huge agricultural wastes comprehensive utilization of resources industry be can form, huge economic benefit, social benefit, political benefit, environmental benefit produced.

In sum; The comprehensive trans-utilization of the utility model biomass waste resource pyrolytic gasification system; Its system comprises pyrolysis plant, air feeder, multifunctional heating switching equipment and Yu Wen heating plant; The gas passage of multifunctional heating switching equipment is connected with air feeder with pyrolysis plant respectively, and condensation water channel is connected with surplus temperature heating plant; Its method is that the biomass waste raw material is sent into the mixed gas that the pyrolysis plant high temperature pyrolysis becomes to contain inflammable gas, tar gas, acetic acid G&W steam; To mix gas suction multifunctional heating switching equipment and carry out thermal exchange; Isolate combustible gas, tar-acetic mixed solution after the heat exchange; And obtaining hot water, hot water and combustible gas are given resident's central gas supply, heating, heat supply water respectively by surplus temperature heating plant and air feeder utilization; Acetic acid can be used as biological foliage fertilizer or biotic pesticide or biological bactericide, and tar is as the industrial raw material utilization.The biomass waste resource transforms comprehensively that to collect utilization ratio nearly 100%, does not produce secondary pollution.The utility model has obvious improvement technically, and has tangible positively effect, really is the new design of a novelty, progress, practicality.

Above-mentioned explanation only is the general introduction of the utility model technical scheme; In order more to know the technique means of understanding the utility model; And can implement according to the content of specification sheets, and for let the above-mentioned of the utility model with other purposes, feature and advantage can be more obviously understandable, below special act preferred embodiment; And conjunction with figs., specify as follows.

Description of drawings

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

Fig. 2 is the embodiment synoptic diagram of multifunctional heating switching equipment;

Fig. 3 is the set-up mode synoptic diagram of B-grade condensation device;

Fig. 4 is the set-up mode synoptic diagram of air-flow feedback pipeline and gas emptying assembly;

Fig. 5 is the set-up mode synoptic diagram of standing separation device;

Fig. 6 is the structural representation of the embodiment of the utility model.

1: pyrolysis plant 2: air feeder

3: multifunctional heating switching equipment 4: multifunction heat exchanger

5: B-grade condensation device 6: the gas passage import

7: gas passage outlet 8: condensation water channel import

9: condensation water channel outlet 10: the curdled liq outlet

11: air inducing equipment 12: the retaining surge tank

13: standing separation device 131: the standing separation chamber

132: BO outlet 133: the acetic acid outlet

134: lightweight oil outlet 14: in-line pump I

15: boiler 16: heating network

17: in-line pump II 18: the water source,

19: solid and gas tripping device 20: purify equipment for purifying

21: air-flow feedback pipeline 22: gas emptying assembly

221: blow-down pipe 222: the trickle shower nozzle

23: valve A 24: valve B

25: examination firearm 26: user

27: composting equipment.

Embodiment

For further setting forth the utility model is to reach technique means and the effect that predetermined goal of the invention is taked; Below in conjunction with accompanying drawing and preferred embodiment; To its embodiment of the comprehensive trans-utilization of biomass waste resource pyrolytic gasification system, structure, method of manufacture, step, characteristic and the effect thereof that proposes according to the utility model, specify as after.

As shown in Figure 1, the comprehensive trans-utilization of biomass waste resource pyrolytic gasification system comprises pyrolysis plant 1 and air feeder 2.Pyrolysis plant 1 can adopt the various common structure forms in the pyrolytic gasification field of biomass resources such as stalk at present.Pyrolysis takes place in biomass resource in pyrolysis plant 1, produce high temperature CO, CH ₄, H ₂Deng inflammable gas and be attended by high temperature CO ₂, N ₂Condensable gas such as non-combustible gas and high-temperature coke oil gas, acetic acid gas, water vapor.Air feeder 2 is used to collect the combustion gas that storage makes, and to gas ductwork gas supply is provided.Native system also is provided with multifunctional heating switching equipment 3 and Yu Wen heating plant, is provided with the insulation thermal insulation layer at multifunctional heating switching equipment 3 outside surfaces, is provided with gas passage and condensation water channel in it.Gas passage is arranged in the condensation water channel, and perhaps condensation water channel is arranged in the gas passage, so that two interior flowing materials of passage carry out thermal exchange.Gas passage import 6 in the multifunctional heating switching equipment 3 is connected with the combustion gas output tube of pyrolysis plant 1 through solid and gas tripping device 19, and gas passage outlet 7 process air inducing equipment 11 are connected to air feeder 2; Connecting pipeline outside surface at solid and gas tripping device 19 and solid and gas tripping device 19 is provided with the insulation thermal insulation layer; Skin at multifunctional heating switching equipment 3 also can be provided with the insulation thermal insulation layer, guarantees that heat does not does not scatter and disappear, and utilizes heat energy to greatest extent.The insulation thermal insulation layer can adopt conventional lagging materials such as insulating cotton, also can adopt other lagging material.Mixed gas need be incubated before getting into multifunctional heating switching equipment 3; Reducing the high-temperature gas mixture body heat content on the one hand scatters and disappears; Make mixed gas keep higher steady temperature on the other hand; Prevent after tar, acetic acid, the vapor condenses with gas in dust combine and inwall attached to equipment and pipeline on, cause equipment and gas passage to stop up, it is separated from the gas to be beneficial to dust.Solid and gas tripping device 19 can be the combination of one or more forms such as strainer, sack cleaner, tornado dust collector, inertial dust separator; It is provided with the position also can be various ways; For example be arranged between the connecting tube of equipment or be arranged on pipe interior, all can adopt as long as can reach the form of dedusting purpose.

Surplus temperature heating plant comprises retaining surge tank 12, in-line pump I 14, boiler 15 and heating network 16.Condensation water channel import 8 in the multifunctional heating switching equipment 3 is connected with the water outlet of retaining surge tank 12 through valve A 23, and condensation water channel exports 9 and is connected with the water-in of retaining surge tank 12; After opening valve A 23, water of condensation circulates between multifunctional heating switching equipment 3 and retaining surge tank 12.The water outlet of retaining surge tank 12 is connected with condensation water channel import 8 in the multifunctional heating switching equipment 3 through boiler 15 and heating network 16 successively, and in-line pump I 14 is arranged on the water-filled pipe of surplus temperature heating plant; On the connecting pipeline of heating network 16 and condensation water channel import 8, be provided with valve B24.Retaining surge tank 12 is a tank, can adopt single or a plurality of parallel connections to use, and in water circulation path, plays the effect of transfer buffering, stored hot water.In this technical scheme, water of condensation has two kinds of circulating paths.When valve A 23 opens, when valve B 24 closed, water of condensation flowed at retaining surge tank 12 and multifunctional heating switching equipment 3 internal recycle; When needs heat, valve A 23 is closed; Valve B 24 and in-line pump I 14 open; Water of condensation is being flowed in the circulation path that retaining surge tank 12, boiler 15, heating network 16 and multifunctional heating switching equipment 3 are formed under the effect of in-line pump I 14, can be user's heating through heating network 16.When heating,, can utilize boiler 15 to heat the raising temperature if hot water does not reach the temperature requirement of heating.In the present technique scheme, can also the hot water in the retaining surge tank 12 be introduced resident family or bathing pool through hot water pipe net, to realize hot water service, need control the water level in the retaining surge tank 12 during hot water service, in time amount of makeup water.Replenishing of the water yield can be adopted any feasible mode, and a connecting tube for example is set, and utilizes in the water suction retaining surge tank 12 of in-line pump II with the water source, also can retaining surge tank 12 be connected with running water pipe.

Be provided with curdled liq outlet 10 in multifunctional heating switching equipment 3 bottoms, the gas passage of multifunctional heating switching equipment 3 is connected with standing separation device 13 through curdled liq outlet 10; Water of condensation constantly absorbs the heat of high-temperature gas in the gas passage in flow process and takes away; Gas temperature is reduced; Condensable gas such as tar gas, acetic acid gas, water vapor condense into mixing liquid, from the curdled liq outlet 10 entering standing separation devices 13 of multifunctional heating switching equipment 3 bottoms.Standing separation device 13 can be a storage vessel or a settling tank; Agglomerative tar and acetic acid can staticly settle in standing separation device 13; Because each composition objectionable intermingling is different with proportion, the mixed solution that condenses obtains BO, acetic acid and lightweight oil through leaving standstill the back layering.Combustion gas after the cooling is sent into air feeder 2 by the effect of air inducing equipment and is stored.

As shown in Figure 5, described standing separation device 13 comprises standing separation chamber 131, on standing separation chamber 131, is provided with BO outlet 132, acetic acid outlet 133 and lightweight oil outlet 134 from the bottom to top successively.Agglomerative tar and acetic acid staticly settle after getting into standing separation chamber 131; Because the proportion of each composition is different; Thereby be divided into the BO of bottom, the lightweight oil and the intermediary acetic acid on top; Through corresponding position on standing separation chamber 131 outlet is set, BO, acetic acid and lightweight oil is derived to collect utilize.For the ease of fertiliser prodn, can acetic acid be exported 133 and be connected to composting equipment 27, but isolated acetic acid is delivered to composting equipment 27 with as the composting raw material, directly is used for composting production.BO outlet 132 is connected to storage vessel with lightweight oil outlet 134, collects storage respectively.

Described multifunctional heating switching equipment 3 is made up of one group of multifunction heat exchanger, perhaps is made up of multifunction heat exchanger parallel connection more than two groups.Wherein every group of multifunction heat exchanger by a multifunction heat exchanger 4 or more than two placed in-line multifunction heat exchanger 4 form.In each multifunction heat exchanger 4, be equipped with gas passage and condensation water channel, also be provided with curdled liq outlet 10 in the bottom of multifunction heat exchanger 4.Both accomplished the thermal exchange of high-temperature gas mixture body and water of condensation through multifunction heat exchanger 4, accomplished again that the high-temperature gas mixture body is coal-tar middle oil, the condensation separation of acetic acid, water vapor, gathered multi-function in integral whole, simple and practical.

The embodiment of Fig. 2 is that three multifunction heat exchangers are connected into one group set-up mode.Series system is: the gas passage outlet of previous multifunction heat exchanger is connected with the gas passage import of a back multifunction heat exchanger, and the condensation water channel import of previous multifunction heat exchanger is connected with the outlet of the condensation water channel of a back multifunction heat exchanger.The flow direction of the flow direction of gas and water of condensation is opposite in the multifunctional heating switching equipment, guarantees that the water of condensation and the high-temperature gas that carry out thermal exchange have the bigger temperature difference all the time, thereby has improved the efficient of heat exchange.Adopt a plurality of multifunction heat exchanger 4 placed in-line modes to insert number, in the time need combustion gas being dropped to lower temperature, only need the number of the multifunction heat exchanger 4 of increase serial connection to get final product according to the cooling demand adjustment of combustion gas.Adopt the mode of connection of many group multifunction heat exchangers 4 parallel connections, can adapt to the gas production rate demand of different scales.Parallel way is in the drawings for drawing; Its mode of connection is: each organize in first multifunction heat exchanger the outlet of gas passage import and condensation water channel respectively and connect, each organize in last multifunction heat exchanger gas passage outlet and condensation water channel import respectively and connect.When gas production rate is big, 4 parallel connections of two groups of multifunction heat exchangers are used, the ability of handling mixed gas is multiplied.Adopt the mode of a plurality of multifunction heat exchanger 4 serial or parallel connections can multifunction heat exchanger 4 be used as the standardized component use, only need to adapt to the gasification use system of different scales according to the access number that the gas production rate and the combustion gas cooling demand of system are adjusted multifunction heat exchanger 4.Therefore, for the gasification use system of different size, its device structure and set-up mode do not need otherwise designed, can satisfy the demand as long as simple adjustment inserts number, and the flexibility of system is strong.The condensation water channel import 8 of multifunction heat exchanger 4 is arranged on the bottom of multifunction heat exchanger, and condensation water channel outlet 9 is arranged on the top of multifunction heat exchanger.At equipment out of service and stop to supply water after, can preserve certain water yield in the condensation water channel of multifunction heat exchanger 4, avoid condensation water channel to contact and oxidation and rusting take place with air.

Because the needs of heating and heat supply water; Water temperature in the retaining surge tank 12 has certain requirement; When water temperature is higher in retaining surge tank 12; The recirculated water of depending merely between retaining surge tank 12 and the multifunctional heating switching equipment 3 possibly can't reach makes mixed gas reach cooling, isolating standard-required, and the other employing of needs is not at this moment participated in heating, the recirculated water of heat supply water is lowered the temperature.As shown in Figure 3, native system also is provided with B-grade condensation device 5, and the structure of B-grade condensation device 5 is identical with multifunction heat exchanger 4 structures.The gas passage outlet of multifunctional heating switching equipment 3 is connected with air inducing equipment 11 through the gas passage of B-grade condensation device 5; The condensation water channel import of B-grade condensation device 5 is connected with water source 18 through in-line pump II 17, and the condensation water channel outlet of B-grade condensation device 5 is connected to water source 18.Recirculated water through between B-grade condensation device 5 and the water source 18 is lowered the temperature, and reaches cooling, isolating standard-required to guarantee mixed gas.

Because the variety of the raw material that adopts in the pyrolysis plant 1 in the gasification pyrolytic process, produces high temperature CO, CH ₄,, H ₂Deng inflammable gas and be attended by high temperature CO ₂, N ₂Condensable gas and dusts such as non-combustible gas and high-temperature coke oil gas, acetic acid gas, water vapor under the more situation of impurity, are the degree of cleaning that guarantee combustible gas in mixed gas, and native system is provided with and purifies equipment for purifying 20.As shown in Figure 6; On the connecting pipeline of air inducing equipment 11 and air feeder 2, be provided with and purify equipment for purifying 20; Purify equipment for purifying 20 and can adopt existing air filter unit, can adopt bathe wash, drip washing, flushing, technological methods such as air filtration, air separation; And in purifying equipment for purifying, water-bath assembly, gas filtration assembly are set, the air separation assembly.Through purifying equipment for purifying, acetic acid in the combustible gas can in water-bath, filtration, sepn process, be removed, tar is residual or CO ₂, N ₂Non-combustible gas plays the effect of water seal simultaneously, prevents fuel gas return-flow, guarantees system's operating safety.

In service in system; Raw material raw thickness, intensity in pyrolysis plant change; Cause the mixed gas flow in air introducing amount, pyrolysis gas quantum of output, the entering multifunctional heating switching equipment 3, the load of air inducing equipment 11 to change; Cause system's fluctuation of service, can damage air inducing equipment 11 under the serious situation.For addressing this problem; Native system is provided with air-flow feedback pipeline 21; As shown in Figure 4, the wind pipe of air inducing equipment 11 is connected through the air-flow feedback pipeline 21 that has regulated valve with intake stack, open valve the air-flow of air inducing equipment 11 outputs is returned intake stack; The air output of adequate compensation air inducing equipment 11 can guarantee the normal and stable operation of air inducing equipment 11.And adopt this air-flow feedback mode to avoid the problem that reduces from the gas concentration that the external complement air-flow causes.

At the initial stage that system comes into operation, the content of inflammable gas is very low in the mixed gas of pyrolysis plant 1 output, does not reach the incendiary requirement, therefore can not this gas be sent into air feeder 2.Be head it off; As shown in Figure 4, the wind pipe of air inducing equipment 11 is connected with gas emptying assembly 22 through valve, the top of gas emptying assembly 22 is provided with blow-down pipe 221; In gas emptying assembly 22, be provided with trickle shower nozzle 222; After the gas that the System Operation initial stage produces gets into gas emptying assembly 22, remove residual flue dust and tar by the water of trickle shower nozzle 222 ejections after, through blow-down pipe 221 discharges.

For whether the viewing system operation is normal, examination firearm 25 is set on the air-flow feedback pipeline 21 of air inducing equipment 11, can judge through the combustion case of observing examination firearm 25 eluting gass whether normal combustion gas quality and system move.

Fig. 6 is the structural representation of an embodiment of the utility model.The service object of the comprehensive trans-utilization of biomass waste resource pyrolytic gasification system is a natural village in this embodiment, and air feeder 2 provides combustion gas for a plurality of users 26 simultaneously, and the heating unit of boiler 15 also provides fuel through air feeder 2.Heating network inserts user 26, at indoor heating radiator that is provided with of the user 26.After sending into heating network from the hot water of boiler 15 output, in user's 26 indoor heat radiations, for the user improves heating installation.Participate in thermal exchange through the multifunctional heating of the inflow again switching equipment behind the heating network radiating and cooling 3.

The method that adopts the comprehensive trans-utilization of biomass waste resource pyrolytic gasification system to carry out comprehensive utilization of resources comprises the steps:

Step 1, at first biomass material is sent into pyrolysis plant 1 and light; The negative pressure of utilizing air inducing equipment 11 in pyrolysis plant 1 and multifunctional heating switching equipment 3, to produce sucks pyrolysis plant to provide reaction required vaporized chemical with air, and the high temperature pyrolysis that biomass material utilizes oxidation to form in pyrolysis plant 1 produces the mixed gas that contains inflammable gas, tar gas, acetic acid G&W steam;

Step 2, utilize negative pressure that air inducing equipment 11 produces that the mixing gas of inflammable gas, tar gas, acetic acid G&W steam in the pyrolysis plant 1 is together sucked the gas passage of multifunctional heating switching equipment 3; Mix gas get into behind the gas passage with condensation water channel in water of condensation carry out thermal exchange, heat is passed to water of condensation, form hot water; After mixing the gas cooling, tar gas, the cooling of acetic acid G&W steam condense into tar, acetic acid mixed solution;

Step 3, high temperature mixing gas after cooling, cooling agglomerative tar, acetic acid mixed solution and be passed to the heat of water of condensation and the combustion gas after the cooling utilizes respectively;

(a), the utilization of inflammable gas: utilize air inducing equipment 11 that inflammable gas is sent into air feeder 2, to the boiler 15 of combustion gas user and Yu Wen heating plant combustion gas is provided through air feeder 2; Be used for fuel gas generation after perhaps combustion gas being purified or as automobile fuel.

(b), the utilization of tar, acetic acid: condense into mixing liquid after the tar-acetic mixing steam cooling in the gas passage, the curdled liq outlet 10 that tar, acetic acid mixed solution are provided with from multifunctional heating switching equipment 3 bottoms gets into standing separation device 13; Tar, acetic acid mixed solution staticly settle in standing separation device 13, because the objectionable intermingling of each composition and proportion is different, obtains BO, acetic acid and lightweight oil behind the tar-acetic mixed solution precipitated and separated and are collected utilization; BO can refine into bio-fuel-oil and biological pitch with lightweight oil, and acetic acid is delivered to composting equipment 27 compostings, also can be directly as crops pesticide or sterilant or foliage fertilizer confession agriculture prodn use.

(c), the utilization of heat: water of condensation gets into retaining surge tank 12 after in condensation water channel, absorbing heat; Water temperatures in the retaining surge tank 12 are raise, utilize in-line pump I 14 that the hot water in the retaining surge tank 12 are delivered to and deliver to heating network 16 again after boiler 15 is heated and heating installation is provided for the user; Utilize retaining surge tank 12 hot water service to be provided to hot water pipe net; Water of condensation in heating network 16 after the heat radiation is sent into multifunctional heating switching equipment 3 again and is carried out waste heat circulation next time.

The utility model can transform biomass such as stalk on the spot; Produce hot water and combustible gas respectively by surplus temperature heating plant and air feeder utilization; Give the heating of resident's central gas supply, acetic acid can be used as biological foliage fertilizer or biotic pesticide or biological bactericide, and tar is as the industrial raw material utilization.Bacterium slag in the agriculture waste resource, pomace, mud, ight soil the like waste also can be mixed with bio-feritlizer with the acetic acid that native system produces; Make full use of various biomass waste resources; The biomass waste resource comprehensively transforms collects utilization ratio 100%, does not produce secondary pollution.

The above; It only is the preferred embodiment of the utility model; Not being that the utility model is done any pro forma restriction, though the utility model with the preferred embodiment exposure as above, yet is not in order to limit the utility model; Anyly be familiar with the professional and technical personnel; In not breaking away from the utility model technical scheme scope, make a little change or be modified to the equivalent embodiment of equivalent variations when the method for above-mentioned announcement capable of using and technology contents, be the content that does not break away from the utility model technical scheme in every case;, all still belong in the scope of the utility model technical scheme any simple modification, equivalent variations and modification that above embodiment did according to the technical spirit of the utility model.

Claims (6)

1. the comprehensive trans-utilization of biomass waste resource pyrolytic gasification system; Comprise pyrolysis plant (1) and air feeder (2); It is characterized in that: also be provided with multifunctional heating switching equipment (3) and surplus temperature heating plant; Be provided with the insulation thermal insulation layer at multifunctional heating switching equipment (3) outside surface; Be provided with gas passage and condensation water channel in it, the gas passage import (6) in the multifunctional heating switching equipment (3) is connected with the combustion gas output tube of pyrolysis plant (1) through solid and gas tripping device (19), and gas passage outlet (7) is connected to air feeder (2) through air inducing equipment (11); Connecting pipeline outside surface at solid and gas tripping device (19) and solid and gas tripping device (19) is provided with the insulation thermal insulation layer; Surplus temperature heating plant comprises retaining surge tank (12), in-line pump I (14), boiler (15) and heating network (16); Condensation water channel import (8) in the multifunctional heating switching equipment (3) is connected with the water outlet of retaining surge tank (12) through valve A (23), and condensation water channel outlet (9) is connected with the water-in of retaining surge tank (12); The water outlet of retaining surge tank (12) passes through boiler (15) and heating network (16) successively and is connected with condensation water channel import (8) in the multifunctional heating switching equipment (3), and in-line pump I (14) is arranged on the water-filled pipe of surplus temperature heating plant; On the connecting pipeline of heating network (16) and condensation water channel import (8), be provided with valve B (24); Be provided with curdled liq outlet (10) in multifunctional heating switching equipment (3) bottom; Gas passage is connected with standing separation device (13) through curdled liq outlet (10); Described standing separation device (13) comprises standing separation chamber (131); On standing separation chamber (131), be provided with BO outlet (132), acetic acid outlet (133) and lightweight oil outlet (134) from the bottom to top successively; Also be provided with B-grade condensation device (5); The gas passage outlet of multifunctional heating switching equipment (3) is connected with air inducing equipment (11) through the gas passage of B-grade condensation device (5), and the condensation water channel import of B-grade condensation device (5) is connected with water source (18) through in-line pump II (17), and the condensation water channel outlet of B-grade condensation device (5) is connected to water source (18).

2. the comprehensive trans-utilization of biomass waste resource pyrolytic gasification as claimed in claim 1 system, it is characterized in that: described multifunctional heating switching equipment (3) is made up of one group of multifunction heat exchanger, perhaps is made up of multifunction heat exchanger parallel connection more than two groups; Wherein every group of multifunction heat exchanger by a multifunction heat exchanger (4) or more than two placed in-line multifunction heat exchanger (4) form; Series system is: the gas passage outlet of previous multifunction heat exchanger connects the gas passage import of a back multifunction heat exchanger, and the condensation water channel import of previous multifunction heat exchanger connects the condensation water channel outlet of a back multifunction heat exchanger; Parallel way is: each organize in first multifunction heat exchanger the outlet of gas passage import and condensation water channel respectively and connect, each organize in last multifunction heat exchanger gas passage outlet and condensation water channel import respectively and connect.

3. the comprehensive trans-utilization of biomass waste resource pyrolytic gasification as claimed in claim 2 system is characterized in that: described multifunction heat exchanger (4), and its condensation water channel import (8) is arranged on the bottom, and condensation water channel outlet (9) is arranged on top.

4. the comprehensive trans-utilization of biomass waste resource pyrolytic gasification as claimed in claim 1 system is characterized in that: also be provided with on the connecting pipeline of described air inducing equipment (11) and air feeder (2) and purify equipment for purifying (20).

5. the comprehensive trans-utilization of biomass waste resource pyrolytic gasification as claimed in claim 1 system; It is characterized in that: described air inducing equipment (11); Be connected through the air-flow feedback pipeline (21) that has regulated valve between its wind pipe and intake stack, air-flow feedback pipeline (21) is provided with examination firearm (25).

6. the comprehensive trans-utilization of biomass waste resource pyrolytic gasification as claimed in claim 1 system; It is characterized in that: described air inducing equipment (11); Its wind pipe also is connected with gas emptying assembly (22) through valve; The top of gas emptying assembly (22) is provided with blow-down pipe (221), in gas emptying assembly (22), is provided with trickle shower nozzle (222).

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