CN109442988A - A kind of kiln car formula kiln with waste-heat recovery device - Google Patents
A kind of kiln car formula kiln with waste-heat recovery device Download PDFInfo
- Publication number
- CN109442988A CN109442988A CN201811528523.8A CN201811528523A CN109442988A CN 109442988 A CN109442988 A CN 109442988A CN 201811528523 A CN201811528523 A CN 201811528523A CN 109442988 A CN109442988 A CN 109442988A
- Authority
- CN
- China
- Prior art keywords
- kiln
- waste
- burner hearth
- recovery device
- heat recovery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
- F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
- F27B9/26—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace on or in trucks, sleds, or containers
- F27B9/262—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace on or in trucks, sleds, or containers on or in trucks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D11/00—Arrangement of elements for electric heating in or on furnaces
- F27D11/02—Ohmic resistance heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
Abstract
The present invention relates to a kind of kiln car formula kiln with waste-heat recovery device, belongs to tunnel oven technical field.Kiln car formula kiln with waste-heat recovery device includes kiln body and waste-heat recovery device；Kiln body include basis, be set on the basis of for surrounding the side wall of burner hearth, burner hearth includes heating zone, flat-temperature zone and cooling area；Burner hearth includes air duct in air inlet and outlet and burner hearth, roasts and is provided with shielding band between material and burner hearth, and air duct is the gap for roasting material in burner hearth；Waste-heat recovery device is connected to burner hearth air outlet, and is provided with air-introduced machine on connecting pipeline therebetween；Waste-heat recovery device includes multiple drying air ducts.Kiln car formula kiln with waste-heat recovery device can solve the problems, such as that the energy in existing kiln car formula kiln gas waste heat is not utilized very well using the waste heat of kiln come material drying.
Description
Technical field
The present invention relates to a kind of kiln car formula kiln with waste-heat recovery device, belongs to tunnel oven technical field.
Background technique
In the prior art, the flue gas of kiln car formula kiln is direct emission, but there is also a large amount of in this partial fume
Heat, there are the waste of energy, the energy in waste heat is not utilized well for the direct emission of flue gas.
Summary of the invention
To solve the problems, such as that gas energy cannot be utilized very well in existing kiln car formula stove, the present invention provides a kind of tool
It has a surplus the kiln car formula kiln of heat recovery apparatus.
In order to solve the above technical problems, the technical scheme adopted by the invention is as follows:
A kind of kiln car formula kiln with waste-heat recovery device comprising kiln body and waste-heat recovery device；
Kiln body include basis, be set on the basis of for surrounding the side wall of burner hearth, burner hearth includes heating zone, flat-temperature zone and cooling
Area；
Burner hearth includes air duct in air inlet and outlet and burner hearth, roasts and is provided with shielding band between material and burner hearth,
Air duct is the gap for roasting material in burner hearth；
Waste-heat recovery device is connected to burner hearth air outlet, and is provided with air-introduced machine on connecting pipeline therebetween；
Waste-heat recovery device includes multiple drying air ducts.
Preferably, multiple drying air ducts include a main air duct and several transportation work style roads；
Several transportation work style roads are connected to main air duct, and main air duct is connected to burner hearth air outlet.
Preferably, branch air duct is curved structure.
Preferably, waste-heat recovery device further includes drying bed, and drying bed includes wavy loading plate.
Preferably, drying bed is arranged in branch air duct.
Preferably, the air inlet of burner hearth is located at the top at furnace outlet end, and the air outlet of burner hearth is located at burner hearth input end
Lower part；
Stratie is provided on the side wall of burner hearth.
Preferably, kiln body is made of insulating brick and insulation fibre.
It preferably, further include the track kiln car in orbit with setting, track is biserial prograde orbit, wherein a column track
It is calcination product kiln car into kiln track, one is classified as the carriage-returning track that product kiln car is completed in calcining, into kiln track and carriage return rail
The end in road is provided with ferry bus.
Preferably, kiln car formula kiln further includes multi-channel temperature control system, stratie and multi-channel temperature control system
System electrical connection.
Preferably, the stratie positioned at burner hearth different temperatures region is independently arranged, the resistance heating being independently arranged
Element is electrically connected with multi-channel temperature control system.
The present invention provides a kind of kiln car formula kiln with waste-heat recovery device, by the setting of air-introduced machine, with negative pressure
Natural air is sucked into kiln body, solves the resistance risen with forced draft high temperature hot gas stream, it can be maximum by the heat of temperature-fall period
The recycling of limit.
Shielding band is provided between stove and roasting material, shielding band can shield kiln and roast the sky between material
Gap, the air-flow being forced into burner hearth pass through from the gap of material, to reach maximum heat exchange, improve the recycling of heat
Efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the kiln car formula kiln provided in an embodiment of the present invention with waste-heat recovery device；
Fig. 2 is the end structure illustration of kiln car formula kiln；
In figure:
1: kiln body；2: track；3: kiln car；4: resistance wire；5: air-introduced machine；6: roasting material；7: drying air duct；8: shielding
Band；9: flexible seals；
In Fig. 1, curve indicated by A, B, C is temperature gradient curve in burner hearth, wherein A indicates that heating zone, B indicate
Flat-temperature zone and C indicate cooling area.
Specific embodiment
Specific embodiments of the present invention are described further with reference to the accompanying drawing.
As shown in Figure 1 and Figure 2, a kind of kiln car formula kiln with waste-heat recovery device comprising kiln body 1 and waste heat recycling
Device.
Kiln body 1 include basis, be set on the basis of for surrounding the side wall of burner hearth, burner hearth includes heating zone, flat-temperature zone and drop
Warm area.
Burner hearth includes air duct in air inlet and outlet and burner hearth, roasts and is provided with shielding band between material 6 and burner hearth
8, air duct is the gap for roasting material 6 in burner hearth.
Waste-heat recovery device is connected to burner hearth air outlet, and air-introduced machine 5 is provided on connecting pipeline therebetween.
Waste-heat recovery device includes multiple drying air ducts 7.
By the setting of air-introduced machine, natural air is sucked by kiln body with negative pressure, is solved with forced draft high temperature hot gas stream
The resistance of rising, can be by the recycling to greatest extent of the heat of temperature-fall period.
Shielding band 8 is provided between stove and roasting material, shielding band 8 can shield kiln and roast the sky between material
Gap, the air-flow being forced into burner hearth pass through from the gap of material, to reach maximum heat exchange, improve the recycling of heat
30% or more thermal energy can be recycled in efficiency.
Specifically, multiple drying air ducts 7 include a main air duct and several transportation work style roads, several transportation work style roads with main wind
Road connection, main air duct are connected to burner hearth air outlet.
Branch air duct is curved structure.Waste-heat recovery device further includes drying bed, and drying bed includes wavy carrying
Plate, drying bed is arranged in branch air duct, it can be achieved that thermal efficiency conversion 50%.
Kiln car formula kiln also packet track 2 and kiln car 3.
Kiln body 1 include basis, be set on the basis of for surrounding the side wall of burner hearth, burner hearth include heating zone A, flat-temperature zone B and
Cooling area C.
Burner hearth includes air inlet and air outlet, wherein air inlet is located at the top at furnace outlet end, and air outlet is located at burner hearth
The lower part of input end.
Stratie is provided on the side wall of burner hearth.
In the present embodiment, the heat source using stratie as kiln keeps temperature control more acurrate, solves
The problem of using coal burning and gas burning as the heat source environmental pollution of kiln.Kiln carries out air circulation in the form of upper entering and lower leaving, by force
The thermal current that making keeps nature upward flows downward, while the thermal compensation of cooling area is utilized by the air-supply of improvement or air-inducing passage
Heating zone realizes and reduces upper and lower temperature difference and energy-efficient purpose.
Kiln body 1 is made of insulating brick and insulation fibre, improves thermal insulation property, has reached the energy-efficient purpose in part, such
Mode is than tradition only with 8% or more insulating brick mode energy conservation.
Track 2 is biserial prograde orbit, wherein a column track 2 is calcination product kiln car into kiln track, and one is classified as calcining
The carriage-returning track for completing product kiln car, is provided with ferry bus into the end of kiln track and carriage-returning track.Ferry bus is used for will
Kiln car switches on two column tracks 2.
Kiln car formula kiln further includes multi-channel temperature control system, and stratie is electrically connected with multi-channel temperature control system
It connects.
Specifically, the stratie for being located at burner hearth different temperatures region is independently arranged, the resistance heating being independently arranged
Element is electrically connected with multi-channel temperature control system.
Stratie is resistance wire 4, and the outside of resistance wire 4 is provided with ceramic shell.Specifically, using high temperature resistant
Ceramic tube improves heat dissipation effect and service life as shell.
4 material of resistance wire uses 0Cr25Al5 or 0Cr21Al6Nb.
The arrangement method for improving resistance wire 4, by the adjustment of 4 diameter of resistance wire and helical pitch power unequal distribution,
Solves the big disadvantage of upper and lower temperature difference in kiln, in burner hearth, in the resistance wire density or number of the position setting for needing temperature high
Amount is higher than the position for needing temperature low.
Isolating device is provided between the stratie in different temperatures region.By the setting of isolating device, solve
The mutual hot interference problem of multiple groups straties, improves multi-channel temperature control system to the essence of each warm area independent control
Degree, the more conducively setting and control of the temperature curve of production technology.
Multi-channel temperature control system includes PID controller, such as PID temp controlled meter.Multi-channel temperature control system uses PID temperature control
Table adjusts control power output regulator module and is segmented independent control to multiple groups resistance wire, it can be achieved that continuous voltage regulating Power Regulation exports.
Compared with the temperature fluctuation of traditional temperature control method ± 10 DEG C or so, the temperature fluctuation of such temperature control form can be reduced to ± 1 DEG C of left side
It is right.
Basis is fire resistant heat preserving brick foundation, and 9 dual-seal of sand seal and flexible seals is provided between kiln car and basis,
Efficiently solve stack effect.
In the present embodiment, by using resistance wire Electric heating, air circulation mode is improved, Yi Jizeng
Add flexible seals, reduces 20-50 DEG C than traditional kiln car formula saving energy in kiln 30-40%, and than traditional kiln car formula kiln temperature difference.
Kiln car formula kiln further includes servo-hydraulic propulsion device and PLC control module；Servo-hydraulic propulsion device is in PLC
The movement of drive kiln car under the control of control module.PLC module process control servo-hydraulic propulsion mode is, it can be achieved that any promote
Time, speed, continuously or discontinuously promotes and quickly retracts setting etc. at propelling pressure.
Air-introduced machine 5 is provided at the air outlet of burner hearth.Under the action of air-introduced machine, air is inhaled from the air inlet of burner hearth
Enter, then air-flow realizes heat exchange by the gap of kiln cooling area product.
The embodiment of the present invention is explained in detail above in conjunction with attached drawing, but the present invention is not limited to above-mentioned implementations
Example, within the knowledge of a person skilled in the art, can also make without departing from the purpose of the present invention
Go out to obtain various change, also should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of kiln car formula kiln with waste-heat recovery device, it is characterised in that: including kiln body and waste-heat recovery device；
Kiln body include basis, be set on the basis of for surrounding the side wall of burner hearth, burner hearth includes heating zone, flat-temperature zone and cooling area；
Burner hearth includes air duct in air inlet and outlet and burner hearth, roasts and is provided with shielding band, burner hearth between material and burner hearth
Interior air duct is the gap for roasting material；
Waste-heat recovery device is connected to burner hearth air outlet, and is provided with air-introduced machine on connecting pipeline therebetween；
Waste-heat recovery device includes multiple drying air ducts.
2. the kiln car formula kiln according to claim 1 with waste-heat recovery device, which is characterized in that multiple drying air ducts
Including a main air duct and several transportation work style roads；
Several transportation work style roads are connected to main air duct, and main air duct is connected to burner hearth air outlet.
3. according to right he require 2 described in waste-heat recovery device kiln car formula kiln, which is characterized in that branch air duct is
Curved structure.
4. the kiln car formula kiln according to claim 2 with waste-heat recovery device, which is characterized in that waste-heat recovery device
It further include drying bed, drying bed includes wavy loading plate.
5. the kiln car formula kiln according to claim 4 with waste-heat recovery device, which is characterized in that drying bed setting exists
In branch air duct.
6. the kiln car formula kiln according to claim 1 with waste-heat recovery device, which is characterized in that
The air inlet of burner hearth is located at the top at furnace outlet end, and the air outlet of burner hearth is located at the lower part of burner hearth input end；
Stratie is provided on the side wall of burner hearth.
7. the kiln car formula kiln according to claim 1 with waste-heat recovery device, which is characterized in that kiln body is by insulating brick
It is made with insulation fibre.
8. the kiln car formula kiln according to claim 1 with waste-heat recovery device, which is characterized in that further include track and
Kiln car in orbit is set, track is biserial prograde orbit, wherein a column track is calcination product kiln car into kiln track, one
It is classified as the carriage-returning track that product kiln car is completed in calcining, is provided with ferry bus into the end of kiln track and carriage-returning track.
9. the kiln car formula kiln according to claim 6 with waste-heat recovery device, which is characterized in that kiln car formula kiln is also
Including multi-channel temperature control system, stratie is electrically connected with multi-channel temperature control system.
10. the kiln car formula kiln according to claim 9 with waste-heat recovery device, which is characterized in that be located at burner hearth not
The stratie in synthermal region is independently arranged, and the stratie being independently arranged is electric with multi-channel temperature control system
Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811528523.8A CN109442988A (en) | 2018-12-13 | 2018-12-13 | A kind of kiln car formula kiln with waste-heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811528523.8A CN109442988A (en) | 2018-12-13 | 2018-12-13 | A kind of kiln car formula kiln with waste-heat recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109442988A true CN109442988A (en) | 2019-03-08 |
Family
ID=65559138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811528523.8A Pending CN109442988A (en) | 2018-12-13 | 2018-12-13 | A kind of kiln car formula kiln with waste-heat recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109442988A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113154891A (en) * | 2021-05-11 | 2021-07-23 | 凤台县天宝建材有限责任公司 | Reciprocating movable efficient energy-saving tunnel kiln |
| CN113280639A (en) * | 2021-05-11 | 2021-08-20 | 凤台县天宝建材有限责任公司 | Fixed efficient energy-saving tunnel kiln |
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| CN108444281A (en) * | 2018-02-24 | 2018-08-24 | 王研 | A kind of automatic control highly effective polyoxy burning minimum discharge industry kiln and its application method |
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| US20140011150A1 (en) * | 2011-03-18 | 2014-01-09 | Ngk Insulators, Ltd. | Tunnel kiln for firing ceramic porous bodies |
| CN102809285A (en) * | 2012-08-08 | 2012-12-05 | 广东四通集团股份有限公司 | Large-section high-efficiency energy-saving type gas tunnel kiln |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113154891A (en) * | 2021-05-11 | 2021-07-23 | 凤台县天宝建材有限责任公司 | Reciprocating movable efficient energy-saving tunnel kiln |
| CN113280639A (en) * | 2021-05-11 | 2021-08-20 | 凤台县天宝建材有限责任公司 | Fixed efficient energy-saving tunnel kiln |
| CN113154891B (en) * | 2021-05-11 | 2022-10-25 | 凤台县天宝建材有限责任公司 | Reciprocating movable efficient energy-saving tunnel kiln |
| CN113280639B (en) * | 2021-05-11 | 2022-12-13 | 凤台县天宝建材有限责任公司 | Fixed high-efficiency energy-saving tunnel kiln |
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