CN203431876U - Furnace in fluid bed device for drying kitchen waste through flue gas circulation - Google Patents

Furnace in fluid bed device for drying kitchen waste through flue gas circulation Download PDF

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Publication number
CN203431876U
CN203431876U CN201320495012.7U CN201320495012U CN203431876U CN 203431876 U CN203431876 U CN 203431876U CN 201320495012 U CN201320495012 U CN 201320495012U CN 203431876 U CN203431876 U CN 203431876U
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CN
China
Prior art keywords
furnace
flue gas
food waste
changing food
drying machine
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Expired - Fee Related
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CN201320495012.7U
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Chinese (zh)
Inventor
刘亮
班银银
邬海明
欧凤林
刘一帆
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Changsha University of Science and Technology
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Changsha University of Science and Technology
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Priority to CN201320495012.7U priority Critical patent/CN203431876U/en
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Expired - Fee Related legal-status Critical Current
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Abstract

The utility model discloses a furnace in fluid bed device for drying kitchen waste through flue gas circulation. The furnace in fluid bed device for drying the kitchen waste through the flue gas circulation comprises a drying machine, a furnace in fluid bed and a feeding device. The furnace in fluid bed is connected with the drying machine through the feeding device. An independent device for drying the kitchen waste and an independent device for incineration are combined into a whole through the flue gas circulation, the waste heat produced in the incineration process is effectively utilized, the kitchen waste can continuously and evenly enter a hearth through the feeding device, the midway dumping and transporting of the kitchen waste are reduced, and investment is saved. The incineration amount of the kitchen waste is effectively increased through the feeding device, maintaining cost and labor cost are reduced, operation cost is low, the bad smell produced in the process of drying the kitchen waste enters the hearth to be burned, and environmental pollution cannot occur. In addition, the furnace in fluid bed device for drying the kitchen waste through the flue gas circulation is simple in structure, convenient to operate and good in performance.

Description

A kind of boiling furnace device that utilizes the dry changing food waste of flue gas recirculation
Technical field
The utility model belongs to refuse treatment plant technical field, relates in particular to a kind of boiling furnace device that utilizes the dry changing food waste of flue gas recirculation.
Background technology
Fast development along with the catering trade, the output of changing food waste and day sharp increase, general big city produces house refuse more than 3000 tons every day, wherein changing food waste accounts for more than 50%, changing food waste general reference results from dining room, food process leftover bits and pieces in the catering industries such as canteen and resident's daily life and edible remaining, with starch based, protein, food fiber, the organic substances such as animal tallow are main component, its content of organic matter is high, moisture content is higher, the perishable feature such as smelly has determined that changing food waste is a kind of pollutant, it is again a kind of resource, according to incompletely statistics, the changing food waste output of China has just reached 4,500 ten thousand t in 2000, as the increasing velocity by annual 10% is calculated, to China in 2011 changing food waste year generation will be considerably beyond 100,000,000 t, so a large amount of changing food wastes can not obtain appropriate processing, become the subject matter of city environmental pollution, serious threat people's normal life and healthy, changing food waste Direct-fed animal, the short circulation of food chain very easily brings the diseases such as aftosa to infect, " hogwash fat " being derived from by " hogwash ", very easily produces carcinogenic substance-aflatoxins, very big to human health damage, " kitchen remaining " in rubbish apt to deteriorate, rot, grow germ, causes transmission of disease, the foul gas atmosphere pollution distributing, to the direct landfill of changing food waste, can produce and a large amount of ooze drop liquid and polluted surface water and underground water, burning method is processed deoiling, dewatering changing food waste, has the advantages such as appearanceizations of subtracting, rapid, judicial convenience, energy, versatility, and the final treatment measures of deoiling, dewatering changing food waste generally have the in line method of pulverizing, landfill method, Fertilizer Transformed processing and energy processing etc.
Existing processing method has following several:
(1) directly discharge: a lot of countries still directly throw aside changing food waste now, this method exists a large amount of wastes and pollutions undoubtedly, some country takes after kitchen garbage pulverizing, by sewer, to be entered the method for municipal downcomer net in addition, but this way easily produces sewage and foul smell, direct contaminated environment, increased growing and transmission of disease of germ, mosquitos and flies, increased the pressure of refuse landfill and municipal sewage plant simultaneously, increased investment and the disposal cost of related system, and can be with the generation of secondary pollution;
(2) landfill disposal: refuse landfill is the standard method of garbage disposal now, but a large amount of organic domestic wastes and refuse landfill itself just exists some potential problem of environmental pollutions, this all makes garbage loading embeading not go on always, a pollution that important problem is percolate of this processing mode, when leachate leaking under soil and after entering underground water by polluted underground water body, the biogas of overflowing in landfill yard in addition, also can cause global warming, for example, Korea S's regulation, plays all landfill yards in 2005 and no longer receives changing food waste;
(3) composting process: just changing food waste is made vegetable fertilizer after Composting treatment, the object of processing to reach minimizing, compost is a kind of artificial humus, can increase organic nutriment and the humus content of soil, although composting technology has advantages of that investment is little, but this technology energy consumption is large, process the energy that rubbish per ton need consume 50~75kWh, product economy is worth low, and the odor pollution producing in composting process is serious, in addition, during high-moisture percentage (> 60%) organic waste compost, the resistance of ventilation oxygen supply is large, easily cause piling body oxygen supply inhomogeneous, there is anaerobic state in part, heap body is difficult to the stage of reaching a high temperature, can not meet the requirement of garbage harmless sanitized,
Burning method is a kind of effective processing method of changing food waste into resources by contrast, there is minimizing, rapid, judicial convenience, energy, advantages such as versatility and day by day coming into one's own, its significant advantage is the most thorough to the processing of organic waste, very effective for garbage decrement, can reach decrement 90% or higher, economic benefit is high, but in actual burning process, there is following problem: problem one: because the moisture content of changing food waste is more than 70%, and be dried, it is the process of a high energy consumption, dry to a certain degree to changing food waste, and cost is again little, device is simple, become a difficult problem, problem two: when mummification changing food waste is transported to burner hearth, cannot guarantee that changing food waste feed is even, material inlet does not emit malleation, problem three: in traditional fluidized bed furnace, in burner hearth, be furnished with water-cooling wall, and mummification changing food waste is sent hearth combustion to, for temperature in smooth combustion and raising stove, so that changing food waste after-flame, the burner hearth of traditional fluidized bed furnace is arranged can not meet changing food waste combustion requirements, need to find a kind of burner hearth that is suitable for changing food waste smooth combustion to arrange.
Existing changing food waste processing method is larger to the pollution of environment and hazard ratio, process not thorough, to equipment and environment require highly, energy consumption is large, the output value is low.
Utility model content
The purpose of this utility model is to provide a kind of boiling furnace device that utilizes the dry changing food waste of flue gas recirculation, be intended to solve existing changing food waste processing method larger to the pollution of environment and hazard ratio, process not thorough, to equipment and environment require high, energy consumption is large, the problem that the output value is low.
The utility model is achieved in that a kind of boiling furnace device that utilizes the dry changing food waste of flue gas recirculation, and this utilizes the boiling furnace device of the dry changing food waste of flue gas recirculation to comprise: drying machine, fluidized bed furnace and charging gear;
Fluidized bed furnace connects drying machine by charging gear.
Further, drying machine adopts the setting of Clothoid type spiral.
Further, drying machine also comprises: drum dryer, feed well, decelerator, helical form stock guide, venthole, warm-air pipe, smoke inlet, motor, rear casing, escape pipe, backing ring, support, blow tank, flapper;
Backing ring is fixed on support, drum dryer is arranged on backing ring, feed well is arranged on the left side of drum dryer, in drying machine, be provided with warm-air pipe, on xeothermic airduct, be distributed with venthole, axis direction along drum dryer on the inwall of drum dryer is provided with helical form stock guide, smoke inlet is arranged on the leftmost side of drum dryer, rear casing is arranged on the right side of drum dryer, the top of rear casing sets out tracheae, below sets out hopper and flapper, the rear end of drum dryer is also provided with transmission device support, decelerator and motor are installed on transmission device support, motor connection reducer, decelerator connects drum dryer.
Further, motor adopts electromagnetic speed-adjusting formula motor.
Further, decelerator connects drum dryer by shaft coupling.
Further, charging gear also comprises: star-like feeder, electric gate valve, type metal expansion joint, feeding airduct, material blanking tube, sealing air pipe;
Star-like feeder is arranged on the top of charging gear, be connected with the flapper of drying machine, type metal expansion joint is arranged on the below of star-like feeder, electric gate valve is arranged between star-like feeder and type metal expansion joint, charging airduct is arranged on the tilting section upper end of material blanking tube, material blanking tube is arranged on the lower end of charging gear, and sealing air pipe is arranged on the outside of material blanking tube.
Further, the upper end of material blanking tube is that vertically lower end arranges with 65 ° of inclinations angle.
Further, fluidized bed furnace also comprises: material seeding airduct, auxiliary fuel entrance, slag-drip opening, air distribution plate, blast cap, burner hearth, flame retardant coating, gas inlet, heat-insulation layer, outer steel shell, smoke discharging pipe, bifurcations, air control valve, circulating line, smoke induced draught fan, tail gas air-introduced machine, air compartment;
The blow tank of drying machine connects the feeding mouth of burner hearth by tail gas air-introduced machine, material seeding airduct connects the material blanking tube of charging gear, on the discharge flue of burner hearth, be provided with bifurcations, bifurcations is connected with the smoke inlet of drying machine by flue gas recirculation pipeline, on circulating line, be provided with air control valve and smoke induced draught fan, circulating line connects the smoke inlet of drying machine by smoke induced draught fan, burner hearth is respectively from inside to outside flame retardant coating, heat-insulation layer and outer steel shell, bottom is boiling-house, in boiling-house, be furnished with air distribution plate, in lower furnace portion, have rubbish feeding mouth and auxiliary fuel entrance, burner hearth middle part is provided with gas inlet, upper furnace is provided with smoke discharging pipe, on described smoke discharging pipe, have bifurcations, air compartment is arranged on the least significant end of burner hearth, boiling-house is arranged at the bottom at burner hearth, boiling-house is provided with the air distribution plate of tilting.
Further, blast cap is adopted as the setting of segment type structure.
The boiling furnace device that utilizes the dry changing food waste of flue gas recirculation that the utility model provides, by utilize flue gas recirculation by changing food waste dry with burn two independently device be combined as a whole, effectively utilized the waste heat in burning process, the setting of charging gear has guaranteed that changing food waste continuous uniform enters burner hearth, thereby reduced dump midway and the transportation of changing food waste, saved investment.Integrated mummification incinerating and treating device of the present utility model, is combined into one two treating apparatus of drying and incineration, has reduced changing food waste and has helped to change the large energy that process consumes.The charging gear that the utility model adopts has greatly reduced the number of times that changing food waste stops up, effectively increased the burning amount of changing food waste, and it is low to have reduced the maintenance and the labour cost operating cost that due to obstruction, cause, thereby greatly reduce operating cost, the foul smell that kitchen garbage drying produces enters burner hearth and burns, can not produce environmental pollution, thereby respond national environmental protection policy.In addition, the utility model is simple in structure, easy to operate, has improved a kind of well behaved boiling furnace device that utilizes the dry changing food waste of flue gas recirculation.
Accompanying drawing explanation
Fig. 1 is that the flue gas recirculation that utilizes that the utility model embodiment provides is dried the structural representation of the boiling furnace device of changing food waste;
In figure: 1, drying machine; 2, drum dryer; 3, feed well; 4, decelerator; 5, helical form stock guide; 6, venthole; 7, warm-air pipe; 8, smoke inlet; 9, shaft coupling motor; 10, rear casing; 11, escape pipe; 12, backing ring; 13, support; 14, blow tank; 15, flapper; 16, star-like feeder; 17, electric gate valve; 18, type metal expansion joint; 19, feeding airduct; 20, material blanking tube; 21, sealing air pipe; 22, charging gear; 23, material seeding airduct; 24, auxiliary fuel entrance; 25, fluidized bed furnace; 26, slag-drip opening; 27, air distribution plate; 28, blast cap; 29, burner hearth; 30, flame retardant coating; 31, gas inlet; 32, heat-insulation layer; 33, outer steel shell; 34, smoke discharging pipe; 35, bifurcations; 36, air control valve; 37, circulating line; 38, smoke induced draught fan; 39, tail gas air-introduced machine; 40, air compartment.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with embodiment, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Fig. 1 shows the boiling furnace device structure of utilizing the dry changing food waste of flue gas recirculation that the utility model embodiment provides.For convenience of explanation, only show the part relevant to the utility model.
The boiling furnace device that utilizes the dry changing food waste of flue gas recirculation of the utility model embodiment, this utilizes the boiling furnace device of the dry changing food waste of flue gas recirculation to comprise: drying machine, fluidized bed furnace and charging gear;
Fluidized bed furnace connects drying machine by charging gear.
As a prioritization scheme of the utility model embodiment, drying machine adopts the setting of Clothoid type spiral.
As a prioritization scheme of the utility model embodiment, drying machine also comprises: drum dryer, feed well, decelerator, helical form stock guide, venthole, warm-air pipe, smoke inlet, motor, rear casing, escape pipe, backing ring, support, blow tank, flapper;
Backing ring is fixed on support, drum dryer is arranged on backing ring, feed well is arranged on the left side of drum dryer, in drying machine, be provided with warm-air pipe, on xeothermic airduct, be distributed with venthole, axis direction along drum dryer on the inwall of drum dryer is provided with helical form stock guide, smoke inlet is arranged on the leftmost side of drum dryer, rear casing is arranged on the right side of drum dryer, the top of rear casing sets out tracheae, below sets out hopper and flapper, the rear end of drum dryer is also provided with transmission device support, decelerator and motor are installed on transmission device support, motor connection reducer, decelerator connects drum dryer.
As a prioritization scheme of the utility model embodiment, motor adopts electromagnetic speed-adjusting formula motor.
As a prioritization scheme of the utility model embodiment, decelerator connects drum dryer by shaft coupling.
As a prioritization scheme of the utility model embodiment, charging gear also comprises: star-like feeder, electric gate valve, type metal expansion joint, feeding airduct, material blanking tube, sealing air pipe;
Star-like feeder is arranged on the top of charging gear, be connected with the flapper of drying machine, type metal expansion joint is arranged on the below of star-like feeder, electric gate valve is arranged between star-like feeder and type metal expansion joint, charging airduct is arranged on the tilting section upper end of material blanking tube, material blanking tube is arranged on the lower end of charging gear, and sealing air pipe is arranged on the outside of material blanking tube.
As a prioritization scheme of the utility model embodiment, the upper end of material blanking tube is that vertically lower end arranges with 65 ° of inclinations angle.
As a prioritization scheme of the utility model embodiment, fluidized bed furnace also comprises: material seeding airduct, auxiliary fuel entrance, slag-drip opening, air distribution plate, blast cap, burner hearth, flame retardant coating, gas inlet, heat-insulation layer, outer steel shell, smoke discharging pipe, bifurcations, air control valve, circulating line, smoke induced draught fan, tail gas air-introduced machine, air compartment;
The blow tank of drying machine connects the feeding mouth of burner hearth by tail gas air-introduced machine, material seeding airduct connects the material blanking tube of charging gear, on the discharge flue of burner hearth, be provided with bifurcations, bifurcations is connected with the smoke inlet of drying machine by flue gas recirculation pipeline, on circulating line, be provided with air control valve and smoke induced draught fan, circulating line connects the smoke inlet of drying machine by smoke induced draught fan, burner hearth is respectively from inside to outside flame retardant coating, heat-insulation layer and outer steel shell, bottom is boiling-house, in boiling-house, be furnished with air distribution plate, in lower furnace portion, have rubbish feeding mouth and auxiliary fuel entrance, burner hearth middle part is provided with gas inlet, upper furnace is provided with smoke discharging pipe, on described smoke discharging pipe, have bifurcations, air compartment is arranged on the least significant end of burner hearth, boiling-house is arranged at the bottom at burner hearth, boiling-house is provided with the air distribution plate of tilting.
As a prioritization scheme of the utility model embodiment, blast cap is adopted as the setting of segment type structure.
Below in conjunction with drawings and the specific embodiments, application principle of the present utility model is further described.
As shown in Figure 1, the boiling furnace device that utilizes the dry changing food waste of flue gas recirculation of the utility model embodiment is mainly by drying machine 1, drum dryer 2, feed well 3, decelerator 4, helical form stock guide 5, venthole 6, warm-air pipe 7, smoke inlet 8, motor 9, rear casing 10, escape pipe 11, backing ring 12, support 13, blow tank 14, flapper 15, star-like feeder 16, electric gate valve 17, type metal expansion joint 18, feeding airduct 19, material blanking tube 20, sealing air pipe 21, charging gear 22, material seeding airduct 23, auxiliary fuel entrance 24, fluidized bed furnace 25, slag-drip opening 26, air distribution plate 27, blast cap 28, burner hearth 29, flame retardant coating 30, gas inlet 31, heat-insulation layer 32, outer steel shell 33, smoke discharging pipe 34, bifurcations 35, air control valve 36, circulating line 37, smoke induced draught fan 38, tail gas air-introduced machine 39, air compartment 40, shaft coupling 41 forms,
Drying machine 1 comprises support 13, backing ring 12, drum dryer 2, backing ring 12 is fixed on support 13, drum dryer 2 is contained on backing ring 12, in drying machine 1, be provided with warm-air pipe 7, on warm-air pipe 7 in drying machine 1, be distributed with little venthole 6, axis direction along drum dryer 2 on the inwall of drum dryer 2 is provided with helical form stock guide 5, the mummification changing food waste outlet of drying machine 1 is connected with the feed well 3 of charging gear 22, the blow tank 14 of charging gear 22 is connected with the changing food waste feeding mouth of burner hearth 29, on burner hearth 29 discharge flues 34, be provided with bifurcations 35, bifurcations 35 is connected with the smoke inlet 8 of drying machine 1 by flue gas recirculation pipeline 34, on circulating line 37, be provided with and connect extraneous air control valve 36 and smoke induced draught fan 38,
Charging gear 22 is by flapper 15, star-shaped feeding machine 16, expansion joint 18, access door, charging airduct 19, material blanking tube 20, sealing air pipe 21, electric gate valve 17, material seeding airduct 23 and auxiliary fuel pipeline 24 form, the epimere blanking mouth of pipe 20 is provided with flapper 15, flapper 15 belows are provided with star-shaped feeding machine 16, for guaranteeing that star-shaped feeding machine has sufficient raw material to carry out continuous uniform and flows to burner hearth 29, expansion joint 18 and electric gate valve 17 are set on vertical material blanking tube 20, charging airduct 19 arranges the tilting section upper end that is opened on material blanking tube 20, material seeding airduct 23 is opened on the lower end of material blanking tube 20, be provided with feeding airduct 19 and material seeding airduct 23, be connected with feeding wind, material seeding wind,
The burner hearth 29 of fluidized bed furnace 25 is respectively from inside to outside flame retardant coating 30, heat-insulation layer 32 and outer steel shell 33, bottom is boiling-house, in boiling-house, be furnished with air distribution plate 27, in burner hearth 29 bottoms, have rubbish feeding mouth and auxiliary fuel entrance 24, burner hearth 29 middle parts are provided with gas inlet 31, burner hearth 29 tops are provided with smoke discharging pipe 34, have bifurcations 35 on smoke discharging pipe 34;
Utilizing the drying machine in the fluidized bed furnace 1 of the dry changing food waste of flue gas recirculation is the drying machine of swinging spiral, on the warm-air pipe 7 of the drying machine 1 of Clothoid type spiral, be distributed with a lot of little ventholes 6, in drying machine 1, be provided with warm-air pipe 7, on warm-air pipe 7 in drying machine 1, be distributed with little venthole 6, material under the promotion of helical form stock guide 5 along on the axis direction of drum dryer 2 to the rear end motion of drum dryer 2, material in motion process with warm-air pipe 7 on the hot blast that blows out of little venthole 6 carry out heat exchange, when material moves to the rear end of drum dryer 2 under the promotion of helical form stock guide 4, the material being dried will be released by blow tank 14, thereby complete the dry run of whole material,
On circulating line, 37 are provided with connection extraneous air control valve 36 and smoke induced draught fan 38, the temperature of utilizing a certain amount of air of high-temperature flue gas blending to reach drying machine 1 thermal medium of Clothoid type spiral is dried changing food waste, the changing food waste of mummification by charging gear 22 guarantee continuous uniforms to burner hearth 29 feedings;
Front end at the screw type drying machine 1 of swinging is provided with a feed well 3 that can put in drum dryer 2 front ends, in the rear end of drum dryer 2, be provided with a rear casing 10 that the discharge opening of establishing on drum dryer 2 rear end cylinders can be covered, on rear casing 10, be provided with blow tank 14 and escape pipe 11;
Material blanking tube 20 epimeres are vertically, and lower end is for tilting, and the mouth of epimere material blanking tube 20 is provided with flapper 15, and its effect is to prevent that high-temperature flue gas from entering material blanking tube 20 with mummification changing food waste, owing to being provided with electric gate valve 11, when rubbish is not thrown, close electric gate valve 11, it can effectively prevent that material inlet is from leaking out in burner hearth 29 and burner hearth outwards emits malleation, in feed process, owing to being provided with sealing air pipe 21, it can effectively prevent that material inlet from emitting malleation, feeding airduct 22 and material seeding airduct 23, be connected with feeding wind, material seeding wind, not only can guarantee that mummification changing food waste enters stove smoothly, can guarantee again can sow evenly when mummification changing food waste enters stove, the impact of minimizing on stove internal combustion, rear end at drum dryer 2 is also provided with transmission device support, decelerator 4 and motor 9 are installed on transmission device support, motor 9 gearing speed-reducers 4, decelerator 4 drives drum dryer to rotate by shaft coupling 41, motor 9 is selected electromagnetic adjustable speed motor, oblique section of inclination angle of material blanking tube 20 is 65 °, the lower end of the inclination material blanking tube 20 of charging gear 22 is provided with material seeding airduct 23, the burner hearth 29 of fluidized bed furnace be adiabatic, boiling-house bottom is provided with air compartment 40, air compartment 40 can make the high warm air of the intersection of friction speed enter turbulence chamber with stable speed, in boiling-house, be provided with the air distribution plate 27 of tilting, temperature for stable boiling bed, blast cap 28 is segment type structure, segment type blast cap can solve the long-pending and problem such as not smooth that flows of the extension of changing food waste in motion process, on the smoke discharging pipe 34 of fluidized bed furnace 25, be provided with the bifurcations 35 of flue gas recirculation pipe, on circulating line 37, be provided with air control valve 36, the air capacity that regulates air to enter circulating line, control the temperature of the drying medium that enters swinging helicoid screw dryer well.
Workflow of the present utility model is as follows:
When starting fluidized bed furnace 25, first use auxiliary fuel burning, make burner hearth 29 temperature reach relevant temperature, the temperature of utilizing a certain amount of air of high-temperature flue gas blending of its generation to reach drying machine 1 thermal medium of Clothoid type spiral is dried changing food waste, flue gas enters the drying machine 1 of Clothoid type spiral by circulating line, now the drying machine 1 of swinging spiral does not enter wet changing food waste, first utilize flue gas to carry out warming-up to it, after warming-up, wet changing food waste enters drying machine 1 by feed well 3, when dry a certain amount of mummification changing food waste, just open electric gate valve 17 and carry feeding wind and material seeding wind, what allow changing food waste continuous uniform enters burner hearth 29, then stop using auxiliary fuel, the temperature of utilizing a certain amount of air of high-temperature flue gas blending producing to reach drying machine 1 thermal medium of Clothoid type spiral is dried changing food waste, on warm-air pipe 7 in drying machine 1, be distributed with little venthole 6, material under the promotion of helical form stock guide 5 along on the axis direction of drum dryer 2 to the rear end motion of drum dryer 2, material in motion process with warm-air pipe 7 on the hot blast that blows out of little venthole 6 carry out heat exchange, when material moves to the rear end of drum dryer 2 under the promotion of helical form stock guide 5, the material being dried will be released by blow tank 14, from the escape pipe of the drying machine 1 of swinging spiral waste gas out, by air-introduced machine, introduced gas inlet 31 internal combustion at burner hearth 29 middle parts, removed the pernicious gas in waste gas, mummification changing food waste is from feed pipe import, flapper only allows mummification changing food waste to enter pipeline, prevent that high-temperature flue gas from entering feed pipe, raw material is by the even continuous tilting section that enters material blanking tube 20 of star-like feed, in feed process, owing to being provided with sealing air pipe 21, it can effectively prevent that material inlet from emitting malleation, feeding airduct 19 arranges the tilting section upper end that is opened on material blanking tube 20, material seeding airduct 23 is opened on the lower end of material blanking tube 20, be provided with feeding airduct 19 and material seeding airduct 23, be connected with feeding wind, material seeding wind, not only can guarantee that mummification changing food waste enters stove smoothly, can guarantee again can sow evenly when mummification changing food waste enters stove, the impact of minimizing on stove internal combustion.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.

Claims (9)

1. a boiling furnace device that utilizes the dry changing food waste of flue gas recirculation, is characterized in that, this utilizes the boiling furnace device of the dry changing food waste of flue gas recirculation to comprise: drying machine, fluidized bed furnace and charging gear;
Fluidized bed furnace connects drying machine by charging gear.
2. the boiling furnace device that utilizes the dry changing food waste of flue gas recirculation as claimed in claim 1, is characterized in that, drying machine adopts the setting of Clothoid type spiral.
3. the boiling furnace device that utilizes the dry changing food waste of flue gas recirculation as claimed in claim 1, it is characterized in that, drying machine also comprises: drum dryer, feed well, decelerator, helical form stock guide, venthole, warm-air pipe, smoke inlet, motor, rear casing, escape pipe, backing ring, support, blow tank, flapper;
Backing ring is fixed on support, drum dryer is arranged on backing ring, feed well is arranged on the left side of drum dryer, in drying machine, be provided with warm-air pipe, on xeothermic airduct, be distributed with venthole, axis direction along drum dryer on the inwall of drum dryer is provided with helical form stock guide, smoke inlet is arranged on the leftmost side of drum dryer, rear casing is arranged on the right side of drum dryer, the top of rear casing sets out tracheae, below sets out hopper and flapper, the rear end of drum dryer is also provided with transmission device support, decelerator and motor are installed on transmission device support, motor connection reducer, decelerator connects drum dryer.
4. the boiling furnace device that utilizes the dry changing food waste of flue gas recirculation as claimed in claim 3, is characterized in that, motor adopts electromagnetic speed-adjusting formula motor.
5. the boiling furnace device that utilizes the dry changing food waste of flue gas recirculation as claimed in claim 3, is characterized in that, decelerator connects drum dryer by shaft coupling.
6. the boiling furnace device that utilizes the dry changing food waste of flue gas recirculation as claimed in claim 1, is characterized in that, charging gear also comprises: star-like feeder, electric gate valve, type metal expansion joint, feeding airduct, material blanking tube, sealing air pipe;
Star-like feeder is arranged on the top of charging gear, be connected with the flapper of drying machine, type metal expansion joint is arranged on the below of star-like feeder, electric gate valve is arranged between star-like feeder and type metal expansion joint, charging airduct is arranged on the tilting section upper end of material blanking tube, material blanking tube is arranged on the lower end of charging gear, and sealing air pipe is arranged on the outside of material blanking tube.
7. the boiling furnace device that utilizes the dry changing food waste of flue gas recirculation as claimed in claim 6, is characterized in that, the upper end of material blanking tube is that vertically lower end arranges with 65 ° of inclinations angle.
8. the boiling furnace device that utilizes the dry changing food waste of flue gas recirculation as claimed in claim 1, it is characterized in that, fluidized bed furnace also comprises: material seeding airduct, auxiliary fuel entrance, slag-drip opening, air distribution plate, blast cap, burner hearth, flame retardant coating, gas inlet, heat-insulation layer, outer steel shell, smoke discharging pipe, bifurcations, air control valve, circulating line, smoke induced draught fan, tail gas air-introduced machine, air compartment;
The blow tank of drying machine connects the feeding mouth of burner hearth by tail gas air-introduced machine, material seeding airduct connects the material blanking tube of charging gear, on the discharge flue of burner hearth, be provided with bifurcations, bifurcations is connected with the smoke inlet of drying machine by flue gas recirculation pipeline, on circulating line, be provided with air control valve and smoke induced draught fan, circulating line connects the smoke inlet of drying machine by smoke induced draught fan, burner hearth is respectively from inside to outside flame retardant coating, heat-insulation layer and outer steel shell, bottom is boiling-house, in boiling-house, be furnished with air distribution plate, in lower furnace portion, have rubbish feeding mouth and auxiliary fuel entrance, burner hearth middle part is provided with gas inlet, upper furnace is provided with smoke discharging pipe, on described smoke discharging pipe, have bifurcations, air compartment is arranged on the least significant end of burner hearth, boiling-house is arranged at the bottom at burner hearth, boiling-house is provided with the air distribution plate of tilting.
9. the boiling furnace device that utilizes the dry changing food waste of flue gas recirculation as claimed in claim 8, is characterized in that, blast cap is adopted as the setting of segment type structure.
CN201320495012.7U 2013-08-14 2013-08-14 Furnace in fluid bed device for drying kitchen waste through flue gas circulation Expired - Fee Related CN203431876U (en)

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CN201320495012.7U CN203431876U (en) 2013-08-14 2013-08-14 Furnace in fluid bed device for drying kitchen waste through flue gas circulation

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Application Number Priority Date Filing Date Title
CN201320495012.7U CN203431876U (en) 2013-08-14 2013-08-14 Furnace in fluid bed device for drying kitchen waste through flue gas circulation

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CN203431876U true CN203431876U (en) 2014-02-12

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103438462A (en) * 2013-08-14 2013-12-11 长沙理工大学 Fluidized bed furnace device utilizing smoke circulation to dry kitchen garbage
CN108613194A (en) * 2018-05-10 2018-10-02 哈尔滨工业大学 A kind of method and device for villages and small towns consumer waste incineration

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103438462A (en) * 2013-08-14 2013-12-11 长沙理工大学 Fluidized bed furnace device utilizing smoke circulation to dry kitchen garbage
CN103438462B (en) * 2013-08-14 2016-05-25 长沙理工大学 A kind of boiling furnace device that utilizes the dry changing food waste of flue gas recirculation
CN108613194A (en) * 2018-05-10 2018-10-02 哈尔滨工业大学 A kind of method and device for villages and small towns consumer waste incineration

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