CN205535841U - Use vertical waste?incinerator of roll -type grate - Google Patents

Use vertical waste?incinerator of roll -type grate Download PDF

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Publication number
CN205535841U
CN205535841U CN201620043241.9U CN201620043241U CN205535841U CN 205535841 U CN205535841 U CN 205535841U CN 201620043241 U CN201620043241 U CN 201620043241U CN 205535841 U CN205535841 U CN 205535841U
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China
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heater
grate
furnace
roll
vertical
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CN201620043241.9U
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Chinese (zh)
Inventor
卢卫凌
刘春阳
宋清国
朱宏
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同方环境股份有限公司
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Priority to CN201620043241.9U priority Critical patent/CN205535841U/en
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Abstract

Use vertical waste?incinerator of roll -type grate relates to city domestic waste treatment facility technical field. The utility model discloses a found columniform furnace body and furnace body outlying heat preservation and metal framework. Structurally, supreme position two corresponding after combustion flues, one and two smoke exhaust passage of two exhanst gas outlets of being equipped with is in proper order down followed to the furnace body lateral wall, and the feed inlet setting is on the upper portion of furnace body. Bind for the arch in the top of furnace body, the top that the arch binds is equipped with perpendicular ascending exhanst gas outlet no. 2. Furnace body bottom center is equipped with tower comb grid melter, and the drive shaft is connected to the below of tower comb grid melter. The furnace body below is equipped with the slag notch and is equipped with the air intake on the lateral wall of slag notch. Furnace body inner chamber middle part is equipped with combusting grate, and near furnace body inner chamber upper portion feed inlet is equipped with dry grate. Compared with the prior art, the utility model discloses the roll -type grate has been increased to adopt the flue gas layering to add stage treatment, realize the continuous burning and the controllable burning of rubbish, satisfy domestic waste's high efficiency and burn.

Description

Use the vertical-type garbage incinerator of roll-type fire grate

Technical field

This utility model relates to treater of urban-area daily garbage technical field, especially with the vertical-type garbage incinerator of roll-type fire grate.

Background technology

Incineration treatment of garbage is emerging trash processing way in last century, and it is maximally effective, the most thoroughly to domestic waste volume reduction, process innoxious, resource.Incinerator is the nucleus equipment realizing burning domestic garbage.In the last few years, the kind of incinerator was a lot, and had carried out the operation of long period in some projects, but was as the appearance in succession of concerned countries and international standard, it will the refuse burning system run at present is proposed higher requirement.

In prior art, the MSW heating value of China most cities is between 3000 kJ/kg ~ 6000kJ/kg at present, and in some higher area, percent sand in rubbish is the highest, up to more than 40%, even if in areas such as relatively advanced Beijing, Shanghai, showing according to the data can looked in recent years, it is upper and lower that MSW heating value the most only maintains 6000kJ/kg.Existing various incinerator is all poorly suitable for above-mentioned low heat value, the process of ash-rich house refuse.Carrying out burning disposal according to import incinerator, not only equipment cost is high, and operating cost is high, and the burning quality of rubbish is also difficult to remain stable.

Summary of the invention

For above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of vertical-type garbage incinerator using roll-type fire grate.Which increase roll-type fire grate, and use backlayering to add staged care, it is achieved the continuous burning of rubbish and controlled burning, meet the efficient burning of house refuse.

In order to reach foregoing invention purpose, the technical solution of the utility model realizes as follows:

Using the vertical-type garbage incinerator of roll-type fire grate, it includes vertical cylindrical body of heater and the heat-insulation layer of body of heater periphery and metallic framework.It is structurally characterized in that, described sidewall of the furnace body is sequentially provided with two corresponding resume combustion flues of position, two exhanst gas outlets one and two discharge flues from bottom to up, and charging aperture is arranged on the top of body of heater.The arch that is arranged above of body of heater binds, and the top that arch binds is provided with exhanst gas outlet two vertically upward.Bottom of furnace body center is provided with tower comb grate, and the lower section of tower comb grate connects drive shaft.It is provided with slag notch below body of heater and on the sidewall of slag notch, is provided with air inlet.It is provided with combustion grate in the middle part of body of heater inner chamber, near body of heater inner chamber upper feed inlet, is provided with dry fire grate.

In above-mentioned vertical-type garbage incinerator, described dry fire grate and combustion grate are all to be rearranged by many fire bars, are dried fire grate and form the material face of an inclination according to the stove direction of entering of rubbish.

In above-mentioned vertical-type garbage incinerator, described fire bars includes the support member at columnar roller and two ends thereof, and fire bars is fixed on sidewall of the furnace body by support member.The material of roller uses refractory ceramics, and roller surface is equipped with four row's wing parts, and often row's wing part presses spiral curve arrangement.

In above-mentioned vertical-type garbage incinerator, described body of heater uses refractory brick material.

In above-mentioned vertical-type garbage incinerator, at body of heater inner chamber and each flue, it is designed with multiple temperature measuring point.Described body of heater intracavity, resume combustion flue arrange multiple camera head to the combustion zone between exhanst gas outlet one.

In above-mentioned vertical-type garbage incinerator, described resume combustion built in flue has heat radiation assembly.

This utility model owing to have employed said structure, based on vertical furnace, layer combustion technology be auxiliary, be additionally arranged roll-type fire grate, use the processing mode of multistage+layering at inner flue gas of the stove, there is burning continuously and the feature such as controlled of burning.This utility model is applicable to low heat value, the process of ash-rich house refuse, is innoxious, volume reduction and the product of recycling treatment of one way of life rubbish.Through incineration experiment, this utility model proves that performance indications produce a desired effect, practicality is higher, ideal treatment effect.

The utility model is described in further detail with detailed description of the invention below in conjunction with the accompanying drawings.

Accompanying drawing explanation

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

Fig. 2 is the structural representation of fire bars in this utility model;

Fig. 3 is the in-furnace temperature curve chart in this utility model embodiment.

Detailed description of the invention

Referring to Fig. 1 and Fig. 2, this utility model uses the vertical-type garbage incinerator of roll-type fire grate, and it includes vertical cylindrical body of heater 13 and the heat-insulation layer 14 of body of heater 13 periphery and metallic framework 15, and body of heater 13 uses refractory brick material.Body of heater 13 sidewall is sequentially provided with position 4, two exhanst gas outlets 1 of two corresponding resume combustion flues and two discharge flues 9 from bottom to up, and resume combustion flue 4 is built-in with heat radiation assembly 5, and charging aperture 12 is arranged on the top of body of heater 13.The arch that is arranged above of body of heater 13 binds 11, arch bind 11 top be provided with exhanst gas outlet 2 10 vertically upward.Body of heater 13 bottom centre is provided with tower comb grate 3, and the lower section of tower comb grate 3 connects drive shaft 1.It is provided with slag notch 16 below body of heater 13 and on the sidewall of slag notch 16, is provided with air inlet 2.It is provided with combustion grate 6 in the middle part of body of heater 13 inner chamber, near body of heater 13 inner chamber upper feed inlet 12, is provided with dry fire grate 8.Being designed with multiple temperature measuring point at body of heater 13 inner chamber and each flue, the combustion zone between body of heater 13 intracavity, resume combustion flue 4 to exhanst gas outlet 1 arranges multiple camera head.It is dried fire grate 8 and combustion grate 6 is all to be rearranged by many fire bars, be dried fire grate 8 and be made up of three fire bars and form the material face of an inclination according to the stove direction of entering of rubbish.Fire bars includes the support member 18 at columnar roller 17 and two ends thereof, and fire bars is fixed on body of heater 13 sidewall by support member 18, and the material of roller 17 uses refractory ceramics.Roller 17 surface is equipped with four row's wing parts 19, and often row's wing part 19 presses spiral curve arrangement.

The body of heater 13 of this utility model vertical-type garbage incinerator is divided into three districts: is burning-out zone to resume combustion flue 4 bottom body of heater 13, is combustion zone from resume combustion flue 4 to exhanst gas outlet 1, is dry section from exhanst gas outlet 17 to discharge flue 9.On the one hand the rubbish entered from charging aperture 12 is lighted in combustion zone, and heat is from the radiation above combustion zone, the convection of heat of flue gas, on the other hand from the inside of rubbish.The motion being dried fire grate 8 and combustion grate 6 self makes the rubbish rolling of burning above it, agitation, constantly updates rubbish levels, the rubbish of lower floor of igniting.Meanwhile, peculair motion (roll, stir) the loosening rubbish layer of two groups of fire grates, make waste layer more fluffy, ventilative, the beneficially burning of rubbish.Meanwhile, the design of several groups of flues of this utility model makes the air above fire grate with optimal layered distribution.The body of heater 13 of incinerator uses refractory brick to design, and not only amount of stored heat is big, need not be combustion-supporting when also can make waste incineration.

The refractory material of this utility model body of heater 13 inwall zones of different can be different because of the difference of temperature, such as high-temperature region: mainly unsetting fire clay cast high with the coefficient of heat conduction, that heat resistance is good forms, and other regions use not/shape the general refractory material of class to be built into.Meanwhile, body of heater 13 arranges two maintenance doors and multiple temperature measuring point, and combustion zone arranges the multiple point of observation of camera head, in order to the combustion case of rubbish in observation stove.The control of the whole burning process of this utility model, such as charging rate, the fire grate duration of runs and air quantity etc., is realized by the temperature data of each temperature measuring point of microprocessor analysis, thus realizes the full-automatic operation of whole process.

Dry fire grate 8 and combustion grate 6 in this utility model are all to be rearranged by many fire bars, and fire bars arrangement orientation is to determine according to body of heater 13 architectural feature and the feature of burning process.For the difference of not same district fire bars, being only embodied in the difference of backgauge wing part 19 size, the main material of roller 17 is refractory ceramics.Checking test explanation: the material of roller 17 can withstand the high temperature of 1200 DEG C, and can long-term work, and when 1000 DEG C, have the three-point bending resistance intensity not less than 300mPa.Metal wing part is divided into wide wing, narrow wing, radially, for dry section and combustion zone fire grate, is inlaid in the foundation trench by roller 17 sintering.After wide wing part 19 mounts and positions, two adjacent wing parts 19 can axially have overlap, is the consideration being difficult to fine grained rubbish material drop.In burner hearth once, secondary wind is from the lateral clearance (gap 40mm ~ 50mm) between wing part 19.The fire bars being dried in fire grate 8 forms the material face of an inclination according to the stove direction of entering of rubbish, and then makes the material into stove fully be spread out, and is dried-burning-after-flame.In combustion process, fire bars constantly rotates, and rubbish turns over layer up and down, and moisture is gradually removed, and rises with hot blast, and then forms the dry section of upper furnace.Combustion grate 6 is alternate layout at two interlayers, forms a three-dimensional burning layout, the material of combustion zone under the dredging that fire grate rotates, in good time, appropriate entrance burning-out zone.It is dried fire grate 8 and combustion grate 6 is respectively provided with independent driving means, relatively chain-grate, flexible operation.The combustion process motion with fire bars and the supply of secondary wind, enter stove rubbish be successively dried, burning, after-flame.Tested by checking, incinerator of the present utility model have fire grate operating efficiently, feature that combustion efficiency is good, more have strong adaptation ability to entering stove rubbish.

Body of heater 13 of the present utility model is according to following design data:

1), dry section: body of heater 13 top, account for combustion space about 20%;

2), combustion zone: in the middle part of body of heater 13, smaller compared with dry section inner thorax diameter, at axial direction, it accounts for about the 35% ~ 40% of interior thorax;

3), burnt zone: body of heater 13 bottom, account for the height of burner hearth 40% ~ 50%, the space storage slag of the most about 70%, and slag top layer be the combustion zone of high temperature, the rubbish landing that do not burns of about 40% ~ 50% is burnt the most further completely.

In this utility model, tower comb grate 3 uses the component of building material industry, and it is arranged on the bottom of burner hearth, and the adjustment of velocity of rotation realizes by analyzing slag combustion case, and then the speed that regulation is slagged tap.Meanwhile, in tapping process, slag and uncombusted rubbish are the most fluffy, and bulk noncombustibility is extruded and pulverizes, and then make main air duct interference-free, the beneficially further after-flame of burning-out zone.Therefore, the design of tower comb grate is particularly suitable for the feature of China's house refuse, and as contained, ash is high, moisture content fluctuation is big.

In this utility model incinerator, thorax top uses full-closed structure, and its both sides are provided with exhanst gas outlet.Rubbish enters stove, heats up, is dried, is dehydrated, and the steam of removing mix with the high-temperature flue gas risen in burner hearth, and then at the roof of the furnace formation anoxic zone based on flue gas, i.e. dry section.The flue gas of dry section is discharged body of heater 13 through exhanst gas outlet 2 10, enters flue gas secondary treatment system therewith, melts down and do further harmless treatment after cooling and dewatering processes.Smoke processing system is drained into outside the flue gas that combustion zone produces.Combustion zone uses oxygen-rich area design, realized by secondary wind, the rubbish that dry section falls is dried in combustion zone, preheats, burns, and the flue gas of generation is discharged by exhanst gas outlet 1, enters resume combustion flue 4 therewith and discharges body of heater 13 by discharge flue 9 after intensification, resume combustion.This utility model is by checking test: the temperature of exhanst gas outlet 1 and resume combustion flue 4 is up to more than 100 DEG C.By the backlayering quarantine measures of this utility model incinerator, the drawback of combustion zone flue gas and dry section flue gas mixing can be avoided, reduce combustion zone concentration of flue gas pollutants.Meanwhile, discharged gas fume time of staying at 850 DEG C is more than 2s.

In utility model works, the calorific value entering stove rubbish is the highest, and the scale of bootstrap system is the biggest;And when the calorific value of rubbish is on the low side, pre-processing device will suitably increase.Therefore, the setting of CIU to determine according to the actual needs, on the premise of guaranteeing that garbage energy obtains harmless treatment, can be effectively realized rubbish volume reduction, the process technique of resource purpose is the ultimate aim of this refuse burning system.

According to this utility model structure, manufacture by the test incinerator of actual size 1:3, treating capacity about about 50t/d, entered stove waste component and calorific value is evaluated as medium on the lower side.This process of the test:

1) duration of ignition: during the morning 8;

2) ignition substance: firewood;

3) charging rate: 25 ~ 45kg/min;

4) rubbish: residential block house refuse (containing ash rate 30% ~ 40%, moisture content 35%);

After furnace temperature rises to normal range, artificial garbage throwing, enter stove rubbish do not sort, non-pretreatment, after 2.5h, stop the interpolation of auxiliary fuel, burn continuously until 30 points of blowing outs during the same day 15.In trial furnace, the distribution of temperature measuring point is as shown in Figure 1: a, b, c, d, e, f are at totally six.Referring to Fig. 3, illustrate the temperature curve of four significant points (a, c, d, e) in stove.It can be seen that (Tc-dry section smog discharge temperature;Te-combustion zone smog discharge temperature;Td-resume combustion flue temperature;Ta: burnt zone burner hearth temperature):

1) Tc: mean temperature is 550 DEG C, exceedes design temperature, is conducive to burning;

2) Te: afternoon Te is always more than 820 DEG C, substantially close to design load;

3), after Td:3h, Td is than Te beyond 80 DEG C ~ 120 DEG C, and effect is more satisfactory;

4) Ta: always maintain the level of more than 1000 DEG C.

Conclusion (of pressure testing):

(1) experimental result of the trial furnace after reducing basically reaches the standard that even more than designs, temperature in burner hearth is in 900 DEG C ~ 1100 DEG C intervals, and maintains nearly 3h, and incinerator exit gas temperature is more than 850 DEG C, and easily reach, it is ensured that the decomposition of two English and qualified discharge.

(2) the flue gas isolation processing measure effect of this incinerator is obvious, and isolation difference maintains 400 DEG C to 500 DEG C, and actual use is extensive.Meanwhile, the difference between Td, Te is also above 80 DEG C.According to analysis, if the performance of radiation device can be improved to a certain extent, burning effect will more preferably.

(3) according to data, comparing design temperature, the flue-gas temperature of dry section is slightly higher, even if taking the most undiminished trend of measure strengthening rotation speed of fan in experimentation.Main cause is to have the entrance of air during charging, causes the generation burnt in anaerobic district, but this kind of situation is also beneficial to burning process.

Claims (6)

  1. null1. use the vertical-type garbage incinerator of roll-type fire grate,It includes vertical cylindrical body of heater (13) and the heat-insulation layer (14) of body of heater (13) periphery and metallic framework (15),It is characterized in that,Described body of heater (13) sidewall is sequentially provided with corresponding two the resume combustion flues (4) in position from bottom to up、Two exhanst gas outlets one (7) and two discharge flues (9),Charging aperture (12) is arranged on the top of body of heater (13),The arch that is arranged above of body of heater (13) binds (11),The bind top of (11) of arch is provided with exhanst gas outlet two (10) vertically upward,Body of heater (13) bottom centre is provided with tower comb grate (3),The lower section of tower comb grate (3) connects drive shaft (1),Body of heater (13) lower section is provided with slag notch (16) and is provided with air inlet (2) on the sidewall of slag notch (16),Combustion grate (6) it is provided with in the middle part of body of heater (13) inner chamber,Dry fire grate (8) it is provided with near body of heater (13) inner chamber upper feed inlet (12).
  2. Use the vertical-type garbage incinerator of roll-type fire grate the most according to claim 1, it is characterized in that, described dry fire grate (8) and combustion grate (6) are all to be rearranged by many fire bars, are dried fire grate (8) and form the material face of an inclination according to the stove direction of entering of rubbish.
  3. Use the vertical-type garbage incinerator of roll-type fire grate the most according to claim 2, it is characterized in that, described fire bars includes the support member (18) at columnar roller (17) and two ends thereof, fire bars is fixed on body of heater (13) sidewall by support member (18), the material of roller (17) uses refractory ceramics, roller (17) surface is equipped with four rows' wing part (19), and often row's wing part (19) presses spiral curve arrangement.
  4. Use the vertical-type garbage incinerator of roll-type fire grate the most according to claim 3, it is characterised in that described body of heater (13) uses refractory brick material.
  5. Use the vertical-type garbage incinerator of roll-type fire grate the most according to claim 4, it is characterized in that, being designed with multiple temperature measuring point at described body of heater (13) inner chamber and each flue, the combustion zone between described body of heater (13) intracavity, resume combustion flue (4) to exhanst gas outlet one (7) arranges multiple camera head.
  6. Use the vertical-type garbage incinerator of roll-type fire grate the most according to claim 5, it is characterised in that described resume combustion flue (4) is built-in with heat radiation assembly (5).
CN201620043241.9U 2016-01-18 2016-01-18 Use vertical waste?incinerator of roll -type grate CN205535841U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106402891A (en) * 2016-11-19 2017-02-15 无锡市智锋金属科技有限公司 Garbage filter-pressing and drying incinerator capable of preventing backdraft
CN106402892A (en) * 2016-11-19 2017-02-15 无锡市智锋金属科技有限公司 Efficient garbage filter-pressing and drying incinerator
CN106524170A (en) * 2016-11-19 2017-03-22 无锡市智锋金属科技有限公司 Filter-press drying incinerator for garbage
CN106382640B (en) * 2016-11-19 2018-10-02 荆门市拓达科技有限公司 It is a kind of to prevent the high-efficiency refuse press filtration strile-backd from drying incinerator

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106402891A (en) * 2016-11-19 2017-02-15 无锡市智锋金属科技有限公司 Garbage filter-pressing and drying incinerator capable of preventing backdraft
CN106402892A (en) * 2016-11-19 2017-02-15 无锡市智锋金属科技有限公司 Efficient garbage filter-pressing and drying incinerator
CN106524170A (en) * 2016-11-19 2017-03-22 无锡市智锋金属科技有限公司 Filter-press drying incinerator for garbage
CN106382640B (en) * 2016-11-19 2018-10-02 荆门市拓达科技有限公司 It is a kind of to prevent the high-efficiency refuse press filtration strile-backd from drying incinerator
CN106402891B (en) * 2016-11-19 2019-01-15 湖南匡楚科技有限公司 It is a kind of to prevent the refuse pressing filtering to strile-back from drying incinerator

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