A kind of refuse gasification boiler
The utility model belongs to refuse treatment plant field, relates in particular to a kind of refuse gasification boiler.
Along with improving constantly of living standard, people's material consumption is risen increasingly. Accordingly, house refuse also sharply increases, and givesEcological environment brings heavy pressure. Rubbish is pollution sources, contain again can regeneration resource and the energy. How to process thisA little rubbish has become the common issue that countries in the world face.
The gasification of house refuse is a kind of novel technology of garbage disposal, compares gasification with burning, landfill and composting treatment methodTreatment technology is more and more subject to people's attention because having the advantage such as clean environment firendly, resource recycling. People make every effort to gasificationTechnical finesse house refuse, to reach better innoxious, minimizing, resource effect.
In house refuse, contain a large amount of organic matters, as plastics, rubber, stationery, dry goods, vegetation, branch etc., these are organicThing is all flammable. In other words, rubbish is also a kind of fuel, is only containing organic number, and its calorific value has height different. In refuse gasification reactor, organic matter heats under anaerobic or anoxia condition, and the chemical combination key of organic compound occurs disconnectedSplit, changed into combustion gas, oil or grease liquid material and the coke etc. of little molecular weight by macromolecule. In gasification, mainly occurBelow reaction; Fuel gas is mainly produced by the endothermic reaction, is provided by exothermic reaction and maintain the heat that the endothermic reaction carries out.
Existing refuse gasification reactor is often more focused on the gasification process effect of rubbish and the aspect that makes full use of of resource is done notReach, energy utilization rate is not high. And conventional garbage gasification reactor also exists maintenance to use inconvenient, use cost mostlyHigh, to flue gas process thoroughly, easily do not cause secondary pollution, can not continuous operations etc. problem.
Utility model content
Technical problem to be solved in the utility model is to overcome deficiency and the defect in above background technology, mentioned, and a kind of energy is providedSource utilization rate is high, easy maintenance, use cost are low, clean environment firendly, can continuous operations refuse gasification boiler.
For solving the problems of the technologies described above, the technical scheme the utility model proposes is:
A kind of refuse gasification boiler, comprises gasification body of heater, in gasification body of heater, is provided with burner hearth, and lower furnace portion is provided with dust inlet, burner hearthTop is provided with vapor collection tracheae, and described refuse gasification boiler also comprises a gasification furnace waste-heat recovery device, and described gasification furnace waste heat returnsThe aqua storage tank that receiving apparatus comprises water inlet, delivery port, is installed on the heat exchange coil of burner hearth inside and is connected with delivery port.
Above-mentioned refuse gasification boiler, preferred, described burner hearth is separated into two stoves from top to bottom by upper and lower two dust inletsChamber, upper and lower two dust inlets below is respectively equipped with on burner hearth valve under valve and burner hearth, gas under valve and burner hearth on described burner hearthMen Junyu mono-burner hearth valve timing controller connects.
Above-mentioned refuse gasification boiler, preferred, described gasification upper of furnace body is provided with rubbish charging device, the described rubbish dress that feeds intakePut and comprise that refuse grinder, rubbish drop into hopper and pneumatic feeding machine, described refuse grinder is located at the bottom of rubbish input hopperSidewall, pneumatic feeding machine is located at the below of refuse grinder.
Above-mentioned refuse gasification boiler, preferred, described rubbish drops into and in hopper, is provided with in charging valve under valve and charging, instituteStating valve in charging is all connected with a feeding gas door controller with valve under charging.
Above-mentioned refuse gasification boiler, preferred, described rubbish drops into hopper bottom and is provided with water filter plate, and rubbish drops into one of hopperSide is provided with rubbish conveyer belt, and rubbish conveyer belt is provided with screen separators.
Above-mentioned refuse gasification boiler, preferred, described gasification furnace body sidewall is provided with a combustion gas discharge, described combustion gas dischargeConnect successively oil water separator, exhaust-heat recovery device gas, sprinkling dust-removing device and air cleaning processor, described air cleaningProcessor is provided with gas outlet and smoke exhaust pipe.
Above-mentioned refuse gasification boiler, preferred, the delivery port of described exhaust-heat recovery device gas is connected with aqua storage tank.
Above-mentioned refuse gasification boiler, preferred, described dust inlet below is provided with maintenance cleaning door and gasifying medium input port, underAn ash mouthful top is provided with maintenance and sees burner and igniter.
Compared with prior art, the utility model has the advantage of:
(1) the utility model refuse gasification boiler is in carrying out effective gasification process to house refuse, by gasification furnace and combustionGas waste heat cements out, and for user's required hot water of living, has improved energy utilization rate.
(2) combustion gas that the utility model produces gasification is carried out heat exchange, dedusting, purified treatment and is obtained clean gas, reduces simultaneouslyThe discharge of pollutant.
(3) refuse gasification boiler of the present utility model is set to multiple furnace chambers by burner hearth, and in each furnace chamber bottom, stove is setThorax valve, by opening or closure of the multiple burner hearth valves of burner hearth valve timing controller control, gas in burner hearth while letting out charcoal ash under having reducedLeak, under let out charcoal when ash and do not need to suspend refuse gasification operation.
(4) refuse gasification boiler of the present utility model arranges in charging valve under valve and charging in hopper by dropping at rubbish,And opened or closed gas in burner hearth while having reduced garbage feeding by valve under valve and charging in feeding gas door controller control chargingLeaking of body, in ensureing, positive pressure is often stable, and garbage feeding operation can serialization be carried out work, and having broken existing equipment can not be continuousThe state of work.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, below will be to embodiment or existingIn technical description, the accompanying drawing of required use is briefly described, and apparently, the accompanying drawing in the following describes is the utility modelSome embodiment, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also basisThese accompanying drawings obtain other accompanying drawing.
Fig. 1 is the structural representation sketch of the refuse gasification boiler of the utility model embodiment 1.
Fig. 2 is the structural representation sketch of the refuse gasification boiler of the utility model embodiment 2.
1, gasification body of heater; 2, burner hearth; 3, burner is seen in maintenance; 4, dust inlet; 5, maintenance cleaning door; 6, gasifying medium is defeatedEntrance; 7, igniter; 8, refuse grinder; 9, rubbish drops into hopper; 10, water filter plate; 11, water inlet; 12, water outletMouthful; 13, heat exchange coil; 14, aqua storage tank; 15, combustion gas discharge; 16, oil water separator; 17, waste heat gas reclaims dressPut; 18, sprinkling dust-removing device; 19, air cleaning processor; 20, gas outlet; 21, smoke exhaust pipe; 22, discharge outlet;23, oil drain out; 24, pneumatic feeding machine; 25, vapor collection tracheae; 26, rubbish conveyer belt; 27, screen separators; 28,Valve on burner hearth; 29, valve under burner hearth; 30, burner hearth valve timing controller; 31, valve in charging; 32, valve under charging;33, feeding gas door controller.
Detailed description of the invention
For the ease of understanding the utility model, below do more complete in connection with Figure of description and preferred embodiment to the utility modelFace, description meticulously, but protection domain of the present utility model is not limited to following specific embodiment.
It should be noted that, when a certain element is described to " be fixed on, be fixed in, be connected in or be communicated in " another yuanOn part time, it can be directly fixing, affixed, connect or be communicated with on another element, can be also by connection in the middle of otherPart indirectly fixing, affixed, connect or be communicated with on another element.
Unless otherwise defined, all technical terms of hereinafter using are identical with the implication that those skilled in the art understand conventionally.Technical term used herein, just in order to describe the object of specific embodiment, is not to be intended to limit guarantor of the present utility modelProtect scope.
As shown in Figure 1, a kind of embodiment of the utility model refuse gasification boiler, comprises refuse gasification device and combustion gas processing dressPut. Wherein, refuse gasification device comprises gasification body of heater 1 and is located at the burner hearth 2 in gasification body of heater 1. The top of burner hearth 2 is provided withVapor collection tracheae 25, required steam while producing a small amount of water vapour for burner hearth 2 interior refuse gasification by this vapor collection tracheae 25. Burner hearth 2Bottom is provided with dust inlet 4, and dust inlet 4 belows are provided with gasifying medium input port 6, and top is provided with igniter 7. This gasification body of heater 1Top is also provided with a combustion gas discharge 15. The combustion gas treating apparatus of this refuse gasification boiler comprises the oil water separator connecting successively16, exhaust-heat recovery device gas 17, sprinkling dust-removing device 18 and air cleaning processor 19. Wherein, oil water separator 16 withCombustion gas discharge 15 connects, and air cleaning processor 19 is provided with gas outlet 20 and smoke exhaust pipe 21,16 ends of oil water separatorPortion is provided with discharge outlet 22 and oil drain out 23. This refuse gasification boiler is also provided with a gasification furnace waste-heat recovery device, this gasification furnaceWaste-heat recovery device comprises water inlet 11, delivery port 12, be installed on the heat exchange coil 13 of burner hearth 2 inside and with delivery port 12The aqua storage tank 14 connecting. When this gasification furnace waste-heat recovery device work, cooling water enters from the water inlet 11 of below, from lower pastOn the heat exchange coil 13 of flowing through carry out heat exchange. After heat exchange, hot water enters aqua storage tank 14 from delivery port 12 outflows of top and makes for userWith. Gasification furnace waste-heat recovery device can adopt the mode of cycle heat exchange. Cooling water also can adopt the mode of upper entering and lower leaving, butIt is the mode that preferably adopts bottom in and top out. Can make like this water be full of whole heat exchange coil 13, thereby make heat transfer effect better,Heat exchange efficiency is higher.
In the present embodiment, the aqua storage tank 14 in gasification furnace waste-heat recovery device goes out by pipeline and exhaust-heat recovery device gas 17The mouth of a river connects, and the hot water that waste heat recovery in gasification furnace is obtained and waste heat gas reclaim the hot water obtaining and be combined together supply user,So just, can save a set of water system, user uses more convenient. Exhaust-heat recovery device gas 17 in the present embodiment can be selectedWater ability of swimming waste heat exchange water heater as described in Chinese utility model patent CN201120257715.
In the present embodiment, rubbish charging device comprises that refuse grinder 8, rubbish drop into hopper 9 and pneumatic feeding machine 24. RubbishDisintegrating machine 8 is located at the lower sides of rubbish input hopper 9, and pneumatic feeding machine 24 is located at the below of refuse grinder 8. To liveRubbish is poured rubbish into and is dropped into hopper 9, and the particle that is broken into certain particle size through refuse grinder 8 again will by pneumatic feeding machine 24Rubbish is sent into and in burner hearth 2, is carried out gasification and pyrolysis. The particle size of garbage raw material is for guaranteeing its Uniform Flow, no in gasification furnaceOccur to block very important. In addition, the particle size of garbage raw material also should ensure that the heat transmission between solid particle can fully enterOK. Therefore, carry out in advance fragmentation procedure before interior and can improve refuse gasification pyrolysis effect rubbish being poured into burner hearth 2. Also meanwhile,Can drop at rubbish the bottom installation water filter plate 10 of hopper 9. Water content is a key factor that affects refuse gasification, along with rubbishThe increase of moisture in rubbish, dry required heat also constantly increases, thereby the thermal efficiency of gasification is reduced. In practical applicationIn, moisture should be controlled at 10%-20%. House refuse water content is generally higher, can below rubbish drops into hopper 9, installWater filter plate 10, by water yield filtering too much in rubbish to ensure refuse gasification pyrolysis effect. Rubbish drops into a side of hopper 9 and also establishesHave rubbish conveyer belt 26, this rubbish conveyer belt 26 is provided with screening rubbish separator 27. By this screen separators 27 by rubbishIn plastics, stone and ironware etc. separate. This refuse gasification boiler is also provided with one and separates with screening with pneumatic feeding machine 24The air compressor that device 27 connects, for providing pressure-air to pneumatic feeding machine 24 and screen separators 27.
In the present embodiment, maintenance is set above the dust inlet 4 of gasification body of heater 1 and sees burner 3. In the time carrying out refuse gasification, can lead toCross this maintenance and see situation in burner 3 real time inspection stoves, make corresponding adjustment. In the time that burner hearth 2 breaks down, relevant staffAlso can see burner 3 by this maintenance burner hearth 2 is keeped in repair, fix a breakdown. In addition, at the dust inlet 4 times of gasification body of heater 1Side arranges maintenance cleaning door 5. The charcoal ash producing after refuse gasification can be discharged for user and plant flowers, plants and trees from this maintenance cleaning door 5Required fertilizer. Meanwhile, also facilitate staff to carry out the maintenance work of equipment.
In the present embodiment, smoke exhaust pipe 21 adopts PVC plastic tube. Through waste heat gas recovery, spraying and dedusting, air evolution etc.A series of processing, from the fully cooling of high-temperature fuel gas of gasification body of heater 1 interior collection. General temperature is 20 DEG C～30 DEG C left and right,Can adopt PVC plastic tube to discharge fume.
When refuse gasification boiler work of the present utility model, user renders to house refuse on rubbish conveyer belt 26, through screening pointFrom device 27, rubbish is screened to separation, the rubbish after screening separates enters rubbish and drops in hopper 9, then through refuse grinder8 and pneumatic feeding machine 24 enter in burner hearth 2, by be arranged on gasification body of heater 1 side igniter 7 light a fire, and from gasificationMedium input port 6 malleations are sent into the gasifying medium such as air or oxygen and are made burner hearth 2 bottom incineration firings. When temperature in stove reaches700 DEG C-800 DEG C time, the rubbish in stove just starts thermal decomposition, produces the catabolites such as fuel gas, charcoal ash, bio oil, steam.Charcoal ash remaining after pyrolysis is discharged from the dust inlet 4 of burner hearth 2 bottoms, can be used as user and plants the required fertilizer of flowers, plants and trees. Burner hearthThe after-heat discharging after 2 interior refuse pyrolysis carries out heat exchange through gasification furnace waste-heat recovery device, displaces hot water and makes for user's lifeWith. Meanwhile, fuel gas that refuse gasification pyrolysis produces, bio oil, steam etc. are derived from combustion gas discharge 15, enter oilSeparator 16, from discharge outlet 22 and oil drain out 23 arranges respectively after the steam carrying is separated with bio oil in fuel gasGo out. Enter the interior heat by high-temperature fuel gas of exhaust-heat recovery device gas 17 from oil water separator 16 combustion gas out and be replaced as hot waterFor user. Combustion gas after exhaust-heat recovery device gas 17 coolings enters sprinkling dust-removing device 18 and carries out dust removal process, removesGo the charcoal ash in combustion gas to wait particulate matter. Combustion gas after spraying and dedusting enters air cleaning processor 19 again and further combustion gas is enteredRow purified treatment. Discharge for user or directly connect Central Air-Conditioner from gas outlet 20 through the combustion gas of purified treatment and send outElectricity. The utility model refuse gasification boiler when house refuse is carried out to gasification process by gasification produce fuel gas,Charcoal ash, bio oil, heat etc. are fully recycled, and have improved energy utilization rate; Gas after gasification is carried out to the degree of depth cleanChange and process, reduced the discharge of pollutant.
As shown in Figure 2, a kind of embodiment of the utility model refuse gasification boiler, comprises gasification body of heater 1 and is located at gasification body of heaterBurner hearth 2 in 1. The upper portion side wall of this gasification body of heater 1 is provided with combustion gas discharge 15, and this combustion gas discharge 15 connects a combustion gasTreating apparatus, this combustion gas treating apparatus comprises the oil water separator 16, exhaust-heat recovery device gas 17, the spray dust that connect successivelyDevice 18 and air cleaning processor 19. Wherein, oil water separator 16 is connected with combustion gas discharge 15, air cleaning processingDevice 19 is provided with gas outlet 20 and smoke exhaust pipe 21, and smoke exhaust pipe 21 is PVC plastic tube, and oil water separator 16 bottoms are provided withDischarge outlet 22 and oil drain out 23. Burner hearth 2 bottoms are provided with dust inlet 4, and dust inlet 4 belows are provided with gasifying medium input port 6 and pointFirearm 7. The top of burner hearth 2 is provided with vapor collection tracheae 25, produces a small amount of water vapour for the interior rubbish of burner hearth 2 by this vapor collection tracheae 25Required aqueous vapor when rubbish gasification. This refuse gasification boiler is also provided with a gasification furnace waste-heat recovery device, this gasification furnace waste heat recovery dressPut the water storage that comprises water inlet 11, delivery port 12, is installed on the heat exchange coil 13 of burner hearth 2 inside and is connected with delivery port 12Groove 14. This refuse gasification boiler also comprises the rubbish charging device of being located at gasification body of heater 1 top, and this rubbish charging device comprisesRefuse grinder 8, rubbish drop into hopper 9 and pneumatic feeding machine 24. Refuse grinder 8 is located at the bottom of rubbish input hopper 9Sidewall, pneumatic feeding machine 24 is located at the below of refuse grinder 8. Rubbish drops into the bottom of hopper 9 water filter plate 10, rubbish is installedThe side that rubbish drops into hopper 9 is also provided with rubbish conveyer belt 26, and this rubbish conveyer belt 26 is provided with screening rubbish separator 27.
In the present embodiment, rubbish drops into and is provided with in charging valve 32 under valve 31 and charging, valve 31 Hes in charging in hopper 9Under charging, valve 32 is all connected with a feeding gas door controller 33. By controlling, this feeding gas door controller 33 can be opened or closureValve 32 under valve 31 and charging in charging. In the time that needs feed intake, first control feeding gas door controller 33 and close valve under charging32, open in charging valve 31 rubbish is dropped in charging under valve 31 and charging between valve 32; Rear control charging has fed intakeValve timing controller 33 is closed valve 31 in charging, opens valve 32 under charging, and rubbish is sent in burner hearth 2 after drainage, fragmentationCarry out gasification and pyrolysis. Adopt the design of upper and lower charging valve can reduce the interior gas leak of burner hearth 2 while feeding intake, can realize while feeding intakeThe continuous operations of refuse gasification pyrolysis.
In the present embodiment, burner hearth 2 is separated into two furnace chambers from top to bottom by upper and lower two dust inlets 4, under upper and lower twoAsh mouthful 4 belows are respectively equipped with on burner hearth valve 29 under valve 28 and burner hearth. On this burner hearth, under valve 28 and burner hearth, valve 29 is equalBe connected with a burner hearth valve timing controller 30. Need to clear up the charcoal ash producing after the interior refuse gasification pyrolysis of burner hearth 2 time, controlBurner hearth valve timing controller 30 is closed valve 29 under burner hearth, opens valve 28 on burner hearth, under the charcoal ash of burner hearth 2 bottoms to burner hearthIn furnace chamber under valve 28 and burner hearth between valve 29; Controlling burner hearth valve timing controller 30 closes valve 28 on burner hearth and opens againValve 29 under burner hearth, lets out under charcoal ash to complete down to burner hearth 2 belows and lets out carbon granules operation. Structure by upper and lower burner hearth valve is establishedMeter has reduced leaking of burner hearth 2 interior gases while time letting out carbon granules, can realize down the continuous operations of refuse gasification while letting out carbon granules.