CN206617937U - A kind of chimney arch linkage regulation incinerator based on refuse thermal value - Google Patents
A kind of chimney arch linkage regulation incinerator based on refuse thermal value Download PDFInfo
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- CN206617937U CN206617937U CN201720185511.4U CN201720185511U CN206617937U CN 206617937 U CN206617937 U CN 206617937U CN 201720185511 U CN201720185511 U CN 201720185511U CN 206617937 U CN206617937 U CN 206617937U
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- radiant panel
- arch
- rear arch
- regulation
- temperature
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Abstract
The utility model discloses a kind of chimney arch linkage regulation incinerator based on refuse thermal value, including mechanical kiln grate furnace, removable rear arch radiant panel system, control system, it is distributed in the temperature sensor in mechanical kiln grate furnace, it is arranged on pressure sensor and flow sensor at drum, removable rear arch radiant panel system is arranged at the rear arch in mechanical kiln grate furnace, the control system is electrically connected with temperature sensor and removable rear arch radiant panel system respectively, what fire box temperature and positive balance method for being gathered according to temperature sensor were back-calculated to obtain enters the height and position regulation that stove rubbish mean calorie adaptively carries out removable rear arch radiant panel system, heating regulation and banking fire regulation, furnace temperature is set to be maintained within preset range.The utility model high combustion efficiency, environment protecting is good, good operability, just builds low with operating cost, is suitable for the burning city domestic garbage of large, medium and small scale treating capacity.
Description
Technical field
The utility model is related to garbage incineration method and incinerator, more particularly to a kind of calorific value wide adaptability, fuel combustion
Fully, the chimney arch linkage regulation incinerator of low stain.
Background technology
Garbage-surrounded city is the universal problems faced in various countries city.On the one hand Municipal Garbage Yield is year by year with the improvement of living standards
Increase；Another aspect urbanization process is accelerated, and urban size constantly expands, and causes garbage disposal problems of land utilization extremely severe.City
The processing of city's house refuse receives much concern further in energy and environment field.At present, municipal solid wastes incineration power generation is rubbish
Innoxious, minimizing, the important way of recycling treatment.
Compared with western developed country, China's waste incineration is started late, the core technology of bulky refuse incinerator and pass
Key member is still rested in international vendor hand；And China's rubbish does not carry out classification disposal, cause to fluctuate into stove refuse thermal value
Greatly, moisture height, complicated components, introduce technology not enough for China's rubbish adaptability.Therefore research and development is adapted to China
The incineration technology of rubbish, has important practical significance and economic value.
Burner hearth rear arch is to influence the key factor of combustion stability, completeness and fluid field in furnace in waste incinerator.
Yang.Y.B proposes in Mathematical modeling of MSW incineration on a traveling bed,
Wet refuse is dried and a part of convection heat transfer' heat-transfer by convection from First air of heat needed for volatile matter release process, another portion on fire grate
Divide the then radiant heat from furnace flame and chimney arch.Lai Zhi Yi etc. exists《Forward and backward arch and Secondary Air are to waste incinerator combustion effects
Research》In think, the temperature in mechanical kiln grate furnace rear arch area is higher, and strong thermoradiation efficiency is conducive to the drying of wet refuse, heat
Solution, for maintaining stable burning and relatively low pollutant emission in stove that there is important effect.Li Qiuhua etc. exists《Waste incinerator
The numerical simulation of furnace arch reconstruction and burning optimization》In point out, after reduction the pitch of arch make furnace flame center move forward, to the spoke of bed
Intensity increase is penetrated, the drying capacity to wet refuse is improved, volatile matter is discharged and is caught fire in advance, it is ensured that the abundant burning of rubbish.
Duan Cuijiu etc. exists《The numerical simulation of the pitch of arch after waste incinerator》In point out, the height of mechanical kiln grate furnace rear arch is influence burner hearth
One of the major influence factors in flow field, increasing the strength of vortex at below face arch with the rear pitch of arch first increases, and strength of vortex is got over
More be conducive to entering at face arch the drying and pyrolysis of stove rubbish greatly.But when after the pitch of arch reach certain value, subsequent pitch of arch increase is preceding
Strength of vortex starts to weaken at arch lower section, and until vortex is wholly absent, the burning to rubbish has a negative impact.
The domestic waste of China has that moisture is high, calorific value is relatively low, component is with spies such as seasonal variations, combustion instabilities
Point.It is combustion-supporting sometimes for addition fuel oil in certain areas, add the cost of operation.Other refuse thermal value is with source, season
There is fluctuation by a relatively large margin in difference, in the case of no auxiliary fuel, and waste of low heating value burning is not sufficiently stable, efficiency of combustion
Fluctuating range is larger.Therefore, it is necessary to for the adaptable garbage incineration technology of domestic waste the characteristic study of China
And method.
Utility model content
Based on above-mentioned technical problem, the utility model provides that a kind of device is simple, chimney arch linkage based on refuse thermal value
Adjust efficient incinerator, it is therefore intended that overcome the problem of larger hot-restriking die of domestic waste is brought, save combustion-supporting oil,
Effectively reduction operating cost, burns away the refuse high-efficiency low-pollution.
The utility model is achieved through the following technical solutions：
A kind of efficient incinerator of chimney arch linkage regulation based on refuse thermal value, including mechanical kiln grate furnace, the mechanical kiln
Main surrounded by burning burner hearth, stoker fired grate, flue, face arch, garbage inlet, slag-drip opening and left and right side wall of grate furnace forms, and also wraps
Include removable rear arch radiant panel system, control system, the temperature sensor being distributed in mechanical kiln grate furnace, be arranged at drum
Pressure sensor and flow sensor, the removable rear arch radiant panel system are arranged at the rear arch in mechanical kiln grate furnace, institute
State control system to electrically connect with temperature sensor and removable rear arch radiant panel system respectively, for being gathered according to temperature sensor
Fire box temperature and the stove rubbish mean calorie that enters that is back-calculated to obtain of positive balance method adaptively carry out removable rear arch radiant panel system
Height and position regulation, heating regulation and the banking fire regulation of system, make furnace temperature be maintained within preset range.
Further, the removable rear arch radiant panel system includes rear arch radiant panel, end transverse slat, hydraulic lifting dress
Put, the cage that two are vertically arranged, two cages are arranged at flue rear wall and burner hearth rear end bottom one on the other respectively
Portion, the rear arch radiant panel two ends are respectively protruding into two cage formation rectilinear movement pairs, under the hydraulic lift is located at
In the cage of side and with the rear arch radiant panel lower end drive connection, hydraulic lift supports end transverse slat, can drive
Whole rear arch radiant panel moves up and down.
Further, described rear arch radiant panel includes the inclined-plane radiant panel of parallel rear arch inwall, is vertically arranged at respectively
The vertical radiant panel of the inclined-plane radiant panel upper and lower side, two vertical radiant panels, which are respectively protruding into two cages, forms rectilinear movement
Pair, the rear arch radiant panel is made up of refractory material, and the direction of action that it occurs is on vertical plane, and inclined-plane radiant panel is only erected
The upward displacement of Nogata, horizontal direction is not subjected to displacement.
Further, the free end of the vertical radiant panel is provided with end horizontal stroke of the width less than the cage width
Plate, the exit of the cage is oppositely disposed rolls the fixed idler whell coordinated, fixed idler whell with the vertical radiant panel
Positioned at the nearly exit of cage, free rolling can be done, the main vertical radiant panel of constraint that plays a part of keeps vertical posture.
Further, described temperature sensor is arranged in face arch inwall, rear arch inwall, side wall inwall and flue
At the height median of wall.
Compared with prior art, the utility model has the advantages that：
(1) the adaptation energy that the utility model is fluctuated with the burning and raising incinerator that improve waste of low heating value to refuse thermal value
For the purpose of power, when water content is big, after calorific value enters stove less than the rubbish of design calorific value, cause originally ignition point rearward, burn not
The problem of stable, by turning down the height of rear arch radiant panel, can strengthen rear arch radiant panel radiation and stove in strength of vortex, pole
The earth improves the drying capacity to wet refuse, makes to dry and catches fire in advance, it is ensured that the stable burning of rubbish, so as to save combustion-supporting
Fuel oil, reduces the operating cost of garbage disposal；
(2) when water content is low, after calorific value enters stove higher than the rubbish of design calorific value, by the height for heightening rear arch radiant panel
Degree, weakens intense radiation of the furnace wall rear arch to fire grate bed, it is to avoid stoker fired grate is exposed to hyperthermia radiation by the too early after-flame of rubbish
Under by high temperature corrosion, protect stoker fired grate, risk and maintenance cost are shut down in reduction；
(3) when burning high heating value rubbish, rear arch radiant panel rising height weakens the intense radiation to bed, Neng Gouxiao
Hot conditions needed for weak thermal NO x generations, control thermal NO x generation；
In summary, the utility model technology has simple and easy to do means, combustion refuse efficiency high, adjustability is good, save into
This advantage, can be widely applicable for urban garbage disposal field and other applicable industrial circles, application prospect is wider.
Brief description of the drawings
Fig. 1 is the structure chart for the grate furnace that the utility model has removable rear arch system.
Fig. 2 is the operation block diagram of the utility model control system.
In figure：1- garbage inlets；2- face arch；3- flues；4- cages；5- fixed idler whells；6- rear arch radiant panels；7- is vertical
Radiant panel；8- ends transverse slat；9- hydraulic lifts；10- stoker fired grates.
Embodiment
The utility model is more specifically described in detail with reference to specific embodiment.
Embodiment one
As shown in figure 1, a kind of efficient incinerator of chimney arch linkage regulation based on refuse thermal value, including mechanical kiln grate furnace,
Removable rear arch radiant panel system, control system, the temperature sensor being distributed in mechanical kiln grate furnace, the pressure being arranged at drum
Force snesor and flow sensor, the mechanical kiln grate furnace are main by burning burner hearth, stoker fired grate 10, flue 3, face arch 2, rubbish
Entrance 1, slag-drip opening and left and right side wall are surrounded and formed, and the garbage inlet 1 is to wait to burn away the refuse into the interface of burner hearth, face arch 2
For one section of inclination furnace wall, flue 3 is the passage that volatile matter, the flying dust that rubbish is separated out are mixed with First air, Secondary Air, risen.Institute
Removable rear arch radiant panel system is stated to be arranged at the rear arch in mechanical kiln grate furnace, the control system respectively with temperature sensor
With the electrical connection of removable rear arch radiant panel system, obtained for the fire box temperature gathered according to temperature sensor and according to drum
Entering stove rubbish mean calorie, adaptively progress may move the height and position regulation of rear arch radiant panel system, heat up regulation and banking fire tune
Section, makes furnace temperature be maintained within preset range.
Specifically, the removable rear arch radiant panel system includes rear arch radiant panel 6, end transverse slat 8, hydraulic lifting dress
Put 9, two cages being vertically arranged 4, two cages 4 are arranged at flue rear wall and burner hearth rear end one on the other respectively
Bottom, described rear arch radiant panel 6 includes the inclined-plane radiant panel of parallel rear arch inwall, is vertically arranged at the inclined-plane radiation respectively
The vertical radiant panel 7 of plate upper and lower side, two vertical radiant panels 7 are respectively protruding into two cages 4 that to form rectilinear movement secondary, it is described after
Arch radiant panel is made up of refractory material, and the direction of action that it occurs is on vertical plane, and inclined-plane radiant panel only occurs on vertical direction
Displacement, horizontal direction is not subjected to displacement.Radiated in the underlying cage 4 of hydraulic lift and with the rear arch
The lower end drive connection of plate 6, hydraulic lift supports end transverse slat, and whole rear arch radiant panel can be driven to move up and down.
In addition, the free end of the vertical radiant panel 7 is provided with the end transverse slat 8 that width is less than the width of cage 4,
The exit of the cage 4 is oppositely disposed rolls the fixed idler whell 5 coordinated, fixed idler whell with the vertical radiant panel 7
Positioned at the nearly exit of cage, and outside the vertical stroke range of end transverse slat 8, free rolling can be done, it is main to play constraint
Vertical radiant panel keeps the effect of vertical posture, and end transverse slat 8 can play a part of limiting rear arch radiant panel shift motion.
In the present embodiment, described temperature sensor is arranged in face arch inwall, rear arch inwall, side wall inwall and flue
At the height median of internal face, such as in hearth wall identity distance from setting fire box temperature sensor at fire grate 2.5-3 rice；In chimney arch and cigarette
Road junction sets chimney arch position temperature sensor；Pressure sensor is set at drum, drum exit sets flow sensor.
Embodiment two
As shown in Fig. 2 a kind of chimney arch linkage regulation based on the described efficient incinerator of chimney arch linkage regulation is efficiently burnt
Firing method, including step：
(1) batcher of the rubbish through garbage inlet 1 enters above fire grate, and First air is blown into burner hearth from grate wind chamber；
(2) operational factors such as average drum pressure, average steam flow are gathered, in real time measurement fire box temperature T1, chimney arch position
Put temperature T2, changed with time according to fire box temperature and calculate average fire box temperature in collection period；
(3) drum pressure p, drum steam flow D are measured in real time, enter the data such as stove rubbish mass M, according to average drum pressure
Power, average steam flow and enter stove rubbish quality, pushed away with positive balance method is counter, calculate the heat for entering the release of stove fuel in collection period
Amount, so as to calculate discrepancy stove rubbish mean calorie；
(4) to enter stove rubbish mean calorie and average fire box temperature as control input parameter, with the vertical of rear arch radiant panel 6
It is highly control output quantity, sets up the fuzzy controller of two inputs one output, a secondary control is just exported every a collection period
Signal, control rear arch radiant panel 6 does vertical direction displacement；
(5) control system sends control signal to hydraulic lift 9, and hydraulic lift 9 is responded, lifting or decline,
Drive rear arch radiant panel 9 to be subjected to displacement action, reach the respective heights adapted into stove refuse thermal value, enhancing or decrease are to bed
Radiation intensity, makes flame kernel move forward or rear shifting, and regulation is fired to the drying capacity of wet refuse and Volatile position, rubbish
The fire grate combustion parameters such as most position；
(6) chimney arch position temperature is maintained in the range of 850~950 DEG C in operation, and in chimney arch position, temperature is less than 850 DEG C
Operating mode under, in addition to the height of rear arch radiant panel 6 is preferably minimized position, also open heating regulation：Spray fuel oil combustion-supporting, make furnace temperature
Go up to normal range (NR)；In chimney arch position temperature crossing under thermal condition more than 950 DEG C, except the height of rear arch radiant panel 6 is raised to most
Outside high position, also carry out bed of material thickening, the appropriate fire grate speed, the appropriate air zoning controllable register that turns down accelerated and carry out banking fire tune
Section, makes furnace temperature fall after rise to preset range；
(7) radiant heating of the rubbish by First air heating and rear arch radiant panel 6 burned in burner hearth is acted on, and completes drying
Dehydration, Volatile, Ignition, subsequently enter fixed carbon burning and after-flame stage, and the flue gas flow direction of generation is burned
The outlet of burner hearth, so as to complete the sufficient Refuse Incineration Process that entirely burns.
Specifically, the step of fuzzy controller that two inputs one output is set up described in step (4), specifically includes：Control
Device is 5 grades to enter the stove rubbish mean calorie and fire box temperature difference fuzzy quantization of two inputs, and to two input quantities each 5
The corresponding controlled quentity controlled variable of all permutation and combination of grade is listed in the Control query table of matrix form, each collection period, controller root
According to two input quantities of fuzzy quantization, the optimum height grade point obtained under the input of tabling look-up, and with being calculated after current level value contrast
Go out the displacement of rear arch radiant panel 6, go to control controlled device as output.
Specifically, the regulating frequency of rear arch radiant panel 6 that the collection period length described in step (4) is specified according to user
Sets itself.
Specifically, calculated in step (3) and be specially into stove rubbish mean calorie：
Q=η D × [h (p)-h0]/M
In formula：Q --- rubbish mean calorie；
η --- burn burner hearth integrated heat efficiency；
H (p) --- drum steam enthalpy, is drum pressure p function；
h0--- boiler feedwater enthalpy；
D --- drum steam flow；
M --- enter stove rubbish quality.
In step (4), fire box temperature and to enter stove rubbish mean calorie as input parameter, rear arch radiant panel is highly to export
Parameter, sets up the fuzzy controller of two inputs one output.
The input fuzzy quantity of system includes：
A. fire box temperature (FT)：Basic domain is [850 DEG C, 950 DEG C], is quantified as 5 grades [- 2, -1,0,1,2], right
The temperature answered is [low, relatively low, medium, higher, height]；
B. stove rubbish mean calorie (VU) is entered：Basic domain is [6000kJ/kg, 10000kJ/kg], quantification gradation scope
For [- 2, -1,0,1,2], corresponding refuse thermal value is [low, relatively low, design, higher, height]；
The output quantity of system is:
C. rear arch radiant panel height：Basic domain is [0m, 3m], and quantification gradation scope is [1,2,3,4,5,6,7,8,9],
The extreme lower position of the movable scope of correspondence rear arch radiant panel is to extreme higher position, the height of 9 grades；
Control rule：According to the combination of input variable, controlled quentity controlled variable rear arch radiant panel control rule totally 25, such as table 1 are listed
It is shown.
Table 1
The height of rear arch radiant panel 6 is divided into 1~9 grade, in the present embodiment according to radiant panel mobile range, every grade high
Degree is at intervals of 0.33 meter of
Control system according to fire box temperature and enter stove rubbish mean calorie table look-up obtain radiant panel height grade y, y ∈ [1,
9], contrast current radiation plate actual height grade y0, export corresponding actuating signal (y-y0)。
Hydraulic lift 9 obtains actuating signal, responds, the height of regulation rear arch radiant panel 6, completes a collection
The regulation in cycle.
Embodiment of the present utility model is simultaneously not restricted to the described embodiments, and other are any without departing from of the present utility model
Spirit Essence and the change made under principle, modification, replacement, combine, simplify, should be equivalent substitute mode, be included in
Within protection domain of the present utility model.
Claims (5)
1. a kind of chimney arch linkage regulation incinerator based on refuse thermal value, including mechanical kiln grate furnace, the mechanical kiln grate furnace master
Will by burning burner hearth, stoker fired grate (10), flue (3), face arch (2), garbage inlet (1), slag-drip opening and left and right side wall surround and
Into, it is characterised in that：Also include removable rear arch radiant panel system, control system, the temperature being distributed in mechanical kiln grate furnace to pass
Sensor, the pressure sensor and flow sensor being arranged at drum, the removable rear arch radiant panel system are arranged at machinery
At rear arch in grate furnace, the control system is electrically connected with temperature sensor and removable rear arch radiant panel system respectively, is used
The stove rubbish mean calorie that enters being back-calculated to obtain in the fire box temperature and positive balance method gathered according to temperature sensor is adaptively entered
Height and position regulation, heating regulation and the banking fire regulation of the removable rear arch radiant panel system of row, make furnace temperature be maintained at preset range
Within.
2. chimney arch linkage regulation incinerator according to claim 1, it is characterised in that：The removable rear arch radiant panel
The cage (4) that system is vertically arranged including rear arch radiant panel (6), end transverse slat (8), hydraulic lift (9), two, two
Individual cage (4) is arranged at flue rear wall and burner hearth rear end bottom, rear arch radiant panel (6) two ends one on the other respectively
Being respectively protruding into two cages (4), to form rectilinear movement secondary, in the underlying cage of hydraulic lift (4) and with
Rear arch radiant panel (6) lower end drive connection.
3. chimney arch linkage regulation incinerator according to claim 2, it is characterised in that：Described rear arch radiant panel (6)
Inclined-plane radiant panel including parallel rear arch inwall, the vertical radiant panel for being vertically arranged at the inclined-plane radiant panel upper and lower side respectively
(7), two vertical radiant panels (7), which are respectively protruding into two cages (4), forms rectilinear movement pair.
4. chimney arch linkage regulation incinerator according to claim 3, it is characterised in that：The vertical radiant panel (7)
Free end is provided with the end transverse slat (8) that width is less than the cage (4) width, and the exit of the cage (4) is relative
Ground is provided with rolls the fixed idler whell (5) coordinated with the vertical radiant panel (7).
5. chimney arch linkage regulation incinerator according to claim 1, it is characterised in that：Described temperature sensor difference
It is arranged in face arch inwall, rear arch inwall, at the height median in side wall inwall and flue inner wall face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720185511.4U CN206617937U (en) | 2017-02-28 | 2017-02-28 | A kind of chimney arch linkage regulation incinerator based on refuse thermal value |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720185511.4U CN206617937U (en) | 2017-02-28 | 2017-02-28 | A kind of chimney arch linkage regulation incinerator based on refuse thermal value |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206617937U true CN206617937U (en) | 2017-11-07 |
Family
ID=60231428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720185511.4U Withdrawn - After Issue CN206617937U (en) | 2017-02-28 | 2017-02-28 | A kind of chimney arch linkage regulation incinerator based on refuse thermal value |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206617937U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106765134A (en) * | 2017-02-28 | 2017-05-31 | 华南理工大学 | A kind of chimney arch linkage regulation incinerator and method based on refuse thermal value |
| CN108087895A (en) * | 2018-01-25 | 2018-05-29 | 广州环保投资集团有限公司 | A kind of co-combustion device and method for automatically adjusting sludge and mixing burning amount |
-
2017
- 2017-02-28 CN CN201720185511.4U patent/CN206617937U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106765134A (en) * | 2017-02-28 | 2017-05-31 | 华南理工大学 | A kind of chimney arch linkage regulation incinerator and method based on refuse thermal value |
| CN106765134B (en) * | 2017-02-28 | 2023-03-21 | 华南理工大学 | Furnace arch linkage adjusting incineration device and method based on garbage heat value |
| CN108087895A (en) * | 2018-01-25 | 2018-05-29 | 广州环保投资集团有限公司 | A kind of co-combustion device and method for automatically adjusting sludge and mixing burning amount |
| CN108087895B (en) * | 2018-01-25 | 2023-12-26 | 广州环保投资集团有限公司 | Mixed combustion method of mixed combustion device capable of automatically adjusting sludge mixed combustion amount |
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Granted publication date: 20171107 Effective date of abandoning: 20230321 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20171107 Effective date of abandoning: 20230321 |
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