CN2896167Y - Internal heating type industrial vertical kiln - Google Patents
Internal heating type industrial vertical kiln Download PDFInfo
- Publication number
- CN2896167Y CN2896167Y CN 200620018379 CN200620018379U CN2896167Y CN 2896167 Y CN2896167 Y CN 2896167Y CN 200620018379 CN200620018379 CN 200620018379 CN 200620018379 U CN200620018379 U CN 200620018379U CN 2896167 Y CN2896167 Y CN 2896167Y
- Authority
- CN
- China
- Prior art keywords
- combustion air
- gas
- combustion
- kiln
- pipe
- 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.)
- Expired - Lifetime
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 20
- 238000002485 combustion reaction Methods 0.000 claims abstract description 103
- 239000007789 gas Substances 0.000 claims abstract description 56
- 239000002737 fuel gas Substances 0.000 claims abstract description 23
- 239000003517 fume Substances 0.000 claims abstract description 8
- 239000000446 fuel Substances 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 6
- 239000002826 coolant Substances 0.000 claims description 5
- 239000000428 dust Substances 0.000 claims description 5
- 230000009969 flowable effect Effects 0.000 claims description 3
- 238000007599 discharging Methods 0.000 abstract description 7
- 239000003245 coal Substances 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 239000000571 coke Substances 0.000 abstract 1
- 230000000593 degrading effect Effects 0.000 abstract 1
- 238000001354 calcination Methods 0.000 description 19
- 239000002994 raw material Substances 0.000 description 10
- 239000000567 combustion gas Substances 0.000 description 9
- 239000002912 waste gas Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 101150054854 POU1F1 gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Landscapes
- Furnace Details (AREA)
Abstract
The utility model relates to an internal heating type industrial vertical kiln which comprises a kiln body, a feeding device, a fuel conveying device, a discharging device, a fume exhaustion device, a combustion device and a control device. The kiln body is a vertical kiln. And the combustion device is composed of a combustion air blower, a fuel gas pipe, a combustion air pipe, a kiln rib combustion pipe, a combined burner, a combustion air blower and a combustion air pipe. By using the technical scheme, the fuel gas and combustion air are preheated by a heat exchanger. With the help of the combustion air blower, the pressure of mixed gas at the kiln front is about 10KPa, with a temperature which is more than or equal to 150 DEG C., which enables the preheated fuel gas and combustion air to be mixed and burnt in the combined burner and surrounding burner nozzles with a uniform and stable flame output spreading the overall cross section of the kiln and a complete and uniform combustion, which solves the problem of degrading the quality of roasted products in original coal type industrial kiln and peripheral type vertical kiln, and can utilize combustion materials with low heat value such as blast furnace gas, coke oven gas, mixed gas etc., and thus greatly reduces the energy loss.
Description
Technical field
The utility model relates to a kind of gas-fired heater kiln, particularly relates to a kind of internal heating type industrial vertical kiln.
Background technology
At present, calcining manners adopts heating of burning coal or employing at the shaft furnace periphery burner to be installed mostly in the existing industrial vertical kiln, the mode that heats by fuel gas buring, all all there is certain defective and sufficient down in these two kinds of industrial vertical kilns in the application of reality, the industrial vertical kiln that wherein burns the coal heating is in calcination process, coal and massive industrial raw material mix, and aflame coal is as easy as rolling off a log to pollute the finished product of being calcined, and reduces the quality of calcining finished product; For the industrial vertical kiln that adopts peripheral burner combustion gas in the process of the block raw material of industry of calcining, because the restriction of the length of flame of burner, the flame that burns the gas generation can not arrive the center of shaft furnace, thereby cause kiln body center calcining finished product not grill thoroughly, the perhaps phenomenons such as calcining finished product burning of kiln inner rim, thereby cause the generation of the situation that has reduced the calcining quality of finished, even the serious substandard product of burning occurs.
Summary of the invention
For solving the problems of the technologies described above, the utility model provides a kind of internal heating type industrial vertical kiln, by providing a kind of simple in structure, make burning more abundant, burner in the middle of being arranged in the stove, with suitable various high heating values and low-calorie combustion gas, and can guarantee the calcination product quality, to remedy the deficiencies in the prior art.
The technical scheme in the invention for solving the above technical problem is: a kind of internal heating type industrial vertical kiln, it includes kiln body, feeding device, fuel delivery means, drawing mechanism, fume extractor, burner and control device and constitutes, described kiln body is a shaft furnace, described burner is by combustion air blower fan, Gas Pipe, combustion air airduct, combustion tube of furnace beam, combination burner, and combustion air blower fan and combustion air airduct constitute; Gas Pipe in the described burner becomes several annulars to be fixed on the shaft furnace outer lower portion with combustion air airduct dish, each Gas Pipe is provided with several combustion tube of furnace beam with the annular aspect that combustion air airduct dish becomes, described each combustion tube of furnace beam traverses respectively in the shaft furnace body, the end of its combustion tube of furnace beam is connected with the annular fuel gas pipe and the combustion air airduct of corresponding aspect, and several combination burners evenly distribute on the described combustion tube of furnace beam; Gas Pipe in the described burner and combustion air airduct are connected with fuel gas source and combustion air blower fan respectively.
The both sides of described combination burner are respectively arranged with horizontal fuel gas hole.
Also be provided with gas mixing pipe in the described combustion tube of furnace beam, described gas mixing pipe is provided with fuel gas inlet and combustion air inlet, described fuel gas inlet links to each other with the combustion air airduct with Gas Pipe respectively with combustion air inlet, two ends at combustion tube of furnace beam are respectively arranged with connecting hole, constitute the cooling duct between described connecting hole connection combustion tube of furnace beam and the gas mixing pipe, and inject flowable cooling medium by connecting hole.
Described fume extractor is to be made of exhaust piping, dust arrester and chimney, also is provided with heat exchanger between exhaust piping and dust arrester, and described Gas Pipe and combustion air airduct enter in the gas mixing pipe through heat exchanger respectively.
Described shaft furnace bottom is provided with blast pipe, is connected in its blast pipe and the shaft furnace, and the blast pipe other end links to each other with air blast.
The beneficial effect that the utility model has the gas heating type industrial vertical kiln of central burner is, pass through the technical program, combustion gas and combustion air are through the heat exchanger preheating, under the effect of combustion air blower fan, pressure is about 10KPa before the mixed kiln, temperature 〉=150 ℃, make combustion gas and combustion air mixed combustion in combination burner after the preheating, the flame that is sprayed is even, can involve the whole section of kiln body, its sufficient combustion has evenly well solved the problem of the reduction calcining quality of finished that coal industrial furnace and perimetric pattern shaft furnace in the past produced, and can use low-calorie blast furnace gas, coke-stove gas, mixed gases etc. reduce the waste of the energy greatly; Because extending, combustion tube of furnace beam strides across the cross section of kiln, and kiln temperature is high easily to cause the damage with fuel gas hole of hardening cracking of combustion tube of furnace beam, by injecting the cooling effect of cooling medium flowing capable of circulation, further improved combustion efficiency, prolonged the service life of combustion tube of furnace beam and gas mixing pipe, greatly reduce the maintenance cost of shaft furnace equipment, improved usage ratio of equipment, reduced product cost.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present utility model;
Fig. 2 is that the A-A of Fig. 1 is to cutaway view;
Fig. 3 is that the B-B of Fig. 1 is to echelon sectional view;
Fig. 4 is that the C-C of Fig. 3 is to partial sectional view;
Fig. 5 is that the D-D of Fig. 4 is to partial sectional view.
Among the figure, 1 melt pit, 2 trucks, 3 skew bridges, 4 platforms, 5 shaft furnaces, 6 feeding device supports, 7 feeding devices, 8 exhaust pipings, 9 supports, 10 heat exchangers, 11 combustion air airducts, 12 combustion tube of furnace beam, 13 dedusters, 14 Gas Pipe, 15 chimneys, 16 smoke exhaust fans, 17 blast pipes, 18 air blasts, 19 combustion air blower fans, 20 discharging cars, 21 electric and magnetic oscillation discharging machines, 22 combination burners, 23 gas mixing pipes, 24 cooling ducts, 25 horizontal fuel gas holes, 26 fuel gas inlet, 27 combustion air inlet, 28 connecting holes, 29 exhaust ducts.
The specific embodiment
The utility model will be further described below in conjunction with accompanying drawing.
As shown in the figure, among the embodiment of the gas heating type industrial vertical kiln that has the central burner device that the utility model relates to, it includes kiln body, feeding device, fuel delivery means, drawing mechanism, fume extractor, burner formation; Described kiln body is a shaft furnace 5, is provided with platform 4 on shaft furnace 5 tops, is provided with support 9 in its side, is fixed with heat exchanger 10 on the support 9; Described feeding device includes melt pit 1, truck 2, skew bridge 3, feeding device support 6 and feeding device 7; Described drawing mechanism comprises discharging car 20, electromagnetic shock discharging machine 21; Described fume extractor comprises deduster 13, smoke exhaust fan 16, exhaust piping 8, chimney 15, blast pipe 17, air blast 18; Described burner is by combustion air blower fan 19, Gas Pipe 14, combustion air airduct 11, combustion tube of furnace beam 12, combination burner 22, and combustion air blower fan 19 constitutes with combustion air airduct 11; Gas Pipe 14 in the described burner is coiled into two annulars with combustion air airduct 11 and is fixed on shaft furnace 5 outer lower portion, superincumbent Gas Pipe 14 is provided with three combustion tube of furnace beam 12 with the annular aspect that combustion air airduct 11 coils, Gas Pipe 14 below is provided with two combustion tube of furnace beam 12 with the annular aspect that combustion air airduct 11 coils, described each combustion tube of furnace beam 12 traverses respectively in shaft furnace 5 bodies, also be provided with gas mixing pipe 23 in the combustion tube of furnace beam 12, described gas mixing pipe 23 is provided with fuel gas inlet 26 and combustion air inlet 27, described fuel gas inlet 26 links to each other with combustion air airduct 11 with Gas Pipe 14 respectively with combustion air inlet 27, and several combination burners 22 evenly distribute on the described combustion tube of furnace beam 12; Gas Pipe 12 in the described burner and combustion air airduct 11 are connected with fuel gas source and combustion air blower fan 19 respectively; The both sides of described combination burner 22 are respectively arranged with horizontal fuel gas hole 25; Be respectively arranged with connecting hole 28 at the two ends of combustion tube of furnace beam 12, described connecting hole 28 is communicated with the cooling duct 24 that constitutes between combustion tube of furnace beam 12 and the gas mixing pipe 23, and injects flowable cooling medium by connecting hole 28.Be arranged in the described fume extractor between the exhaust piping 8 at stove top and the dust arrester 13 and also be provided with heat exchanger 10, described Gas Pipe 14 and combustion air airduct 11 enter in the gas mixing pipe 23 after exchanging heat for through heat exchanger 10 respectively; Described shaft furnace 5 bottoms are provided with blast pipe 17, are connected in its blast pipe 17 and the shaft furnace 5, and blast pipe 17 other ends link to each other with air blast 18.
The gas heating type industrial vertical kiln that has central burner of the present utility model, when work, the massive industrial raw material is under the traction of hoist engine, truck is towed to the kiln top along skew bridge 3, reinforced in shaft furnace 5 by feeding device, the processed raw material of industry, at first arrive preliminary heating zone, in the burning of calcining layer and decompose under the heating of the high-temp waste gas that produces and carry out preheating, the calcining finished product that calcined this moment in the calcining layer constantly descends, after 21 screenings of vibrations discharging machine, to deliver to discharging car 20 supply transporting equipments and transport, the bed of materials in the shaft furnace 5 are also because the continuous production of calcining finished product is transported and constantly decline, the waste gas that burning produces is behind the block raw material of industry of preheating, enter in the heat exchanger 10 through exhaust piping 7, combustion air and combustion gas are carried out preheating, waste gas is after discharged by chimney 15 after deduster 13 dedustings; Along with the finished product of constantly calcining of circulation is constantly produced.
But whether an industrial vertical kiln can refine out qualified calcining finished product except good raw material is arranged, the service behaviour of burner is decisive role then, whether industrial vertical kiln is energy-conservation depends on also whether its burner is reasonable, so burner is the core of an industrial vertical kiln.Burner in the utility model at work, combustion gas is carried out heat exchange by Gas Pipe 14 through heat exchanger 13 and high-temp waste gas, combustion air carries out heat exchange after enter heat exchanger 10 by combustion air pipeline 23 with high-temp waste gas by 19 pressurizations of combustion air blower fan, the combustion gas and the combustion air that have improved temperature enter combustion tube of furnace beam 12 by combustion air pipeline 11 and Gas Pipe 14 respectively, combustion air and combustion gas are led to gas mixing pipe 23 each combination burners 22 in the combustion tube of furnace beam 12 respectively under gas mixing pipe 23 evenly mixes, carry out strong combustion reaction, produce a large amount of heats, temperature is very high in the shaft furnace 5, especially temperature reaches more than 1150 degree near the combination burner 22, in order to guarantee the operate as normal of combustion tube of furnace beam 12, the cooling duct 24 that is provided with in the combustion tube of furnace beam 12, the temperature that reduces combustion tube of furnace beam 12 by cooling medium guarantees its operate as normal, massive industrial raw material in the heating shaft furnace makes its decomposition.
The utility model all is uniform-distribution with fiery point everywhere owing to adopted combustion tube of furnace beam to make on the section of kiln body, evenly heat the massive industrial raw material in shaft furnace 5 bodies, can reach the evenly calcining everywhere of massive industrial raw material section, make the interior calcining layer of body of heater temperature even, the massive industrial raw material decomposes fully, has prevented that core from burning the phenomenon not saturating or burning of periphery calcining finished product and producing, and has improved the quality of calcining finished product, and heat is made full use of, saved the energy.
By the technical solution of the utility model, in the combustion gas of using, can be the higher natural gas of fuel gases calorific value, coke-stove gas, also can be the low blast furnace gas of fuel gases calorific value, mixed gas; The quantity of the combustion tube of furnace beam in the technical solutions of the utility model and the number of plies can be done corresponding adjustment setting according to actual kiln body size and needs.
Claims (5)
1. internal heating type industrial vertical kiln, it includes kiln body, feeding device, fuel delivery means, drawing mechanism, fume extractor, burner and control device and constitutes, it is characterized in that: described kiln body is a shaft furnace, described burner is by combustion air blower fan, Gas Pipe, combustion air airduct, combustion tube of furnace beam, combination burner, and combustion air blower fan and combustion air airduct constitute; Gas Pipe in the described burner becomes several annulars to be fixed on the shaft furnace outer lower portion with combustion air airduct dish, each Gas Pipe is provided with several combustion tube of furnace beam with the annular aspect that combustion air airduct dish becomes, described each combustion tube of furnace beam traverses respectively in the shaft furnace body, the end of its combustion tube of furnace beam is connected with the annular fuel gas pipe and the combustion air airduct of corresponding aspect, and several combination burners evenly distribute on the described combustion tube of furnace beam; Gas Pipe in the described burner and combustion air airduct are connected with fuel gas source and combustion air blower fan respectively.
2. the gas heating type industrial vertical kiln that has the central burner device according to claim 1 is characterized in that: the both sides of described combination burner are respectively arranged with horizontal fuel gas hole.
3. the gas heating type industrial vertical kiln that has the central burner device according to claim 1 and 2, it is characterized in that: also be provided with gas mixing pipe in the described combustion tube of furnace beam, described gas mixing pipe is provided with fuel gas inlet and combustion air inlet, described fuel gas inlet links to each other with the combustion air airduct with Gas Pipe respectively with combustion air inlet, two ends at combustion tube of furnace beam are respectively arranged with connecting hole, constitute the cooling duct between described connecting hole connection combustion tube of furnace beam and the gas mixing pipe, and inject flowable cooling medium by connecting hole.
4. the gas heating type industrial vertical kiln that has the central burner device according to claim 3, it is characterized in that: described fume extractor is to be made of exhaust piping, dust arrester and chimney, also be provided with heat exchanger between exhaust piping and dust arrester, described Gas Pipe and combustion air airduct enter in the gas mixing pipe through heat exchanger respectively.
5. the gas heating type industrial vertical kiln that has the central burner device according to claim 4 is characterized in that: described shaft furnace bottom is provided with blast pipe, is connected in its blast pipe and the shaft furnace, and the blast pipe other end links to each other with air blast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620018379 CN2896167Y (en) | 2006-04-07 | 2006-04-07 | Internal heating type industrial vertical kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620018379 CN2896167Y (en) | 2006-04-07 | 2006-04-07 | Internal heating type industrial vertical kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2896167Y true CN2896167Y (en) | 2007-05-02 |
Family
ID=38065743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620018379 Expired - Lifetime CN2896167Y (en) | 2006-04-07 | 2006-04-07 | Internal heating type industrial vertical kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2896167Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793465A (en) * | 2010-03-16 | 2010-08-04 | 颜良 | Large calcining kiln blowing-in method and device |
| CN101788224B (en) * | 2010-02-02 | 2012-10-10 | 贾会平 | Vertical gas-burning cement kiln |
| CN106045346B (en) * | 2016-08-10 | 2018-11-16 | 李鑫 | A kind of porous internal combustion type shaft furnace |
-
2006
- 2006-04-07 CN CN 200620018379 patent/CN2896167Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101788224B (en) * | 2010-02-02 | 2012-10-10 | 贾会平 | Vertical gas-burning cement kiln |
| CN101793465A (en) * | 2010-03-16 | 2010-08-04 | 颜良 | Large calcining kiln blowing-in method and device |
| CN106045346B (en) * | 2016-08-10 | 2018-11-16 | 李鑫 | A kind of porous internal combustion type shaft furnace |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106986561B (en) | Annular lime shaft kiln | |
| CN113372024B (en) | Double-hearth kiln for calcining lime by using low-calorific-value fuel and calcining method | |
| CN102359744A (en) | Backdraft multi-return heat storage energy-saving furnace for hearth coaxial staged combustion center | |
| CN110642539A (en) | Double-chamber lime kiln | |
| CN203007148U (en) | Low-heat-value fuel lime kiln | |
| CN2896167Y (en) | Internal heating type industrial vertical kiln | |
| CN101984319A (en) | Energy-saving and efficiency-improvement double-temperature-field rotary kiln system | |
| CN102992660B (en) | Low-heat value fuel lime kiln | |
| CN2896166Y (en) | Gas heating type industrial vertical kiln with central burning device | |
| CN103482889B (en) | Heat accumulating type material calcinating device | |
| CN210420022U (en) | Scrap steel preheating furnace | |
| CN201000061Y (en) | Roasters special for steel-smelting ladle blast furnace gas | |
| CN101050918A (en) | Gas heating type industrial vertical kiln with central burner | |
| CN218931987U (en) | Improved double-beam lime kiln | |
| CN218435886U (en) | Device for producing pellet ore by using low-calorific-value fuel | |
| CN201885553U (en) | Energy-saving efficiency-improving rotary kiln with double temperature fields | |
| CN2656405Y (en) | Internal-external heating lime furnace | |
| CN110921664B (en) | Active carbon retort production system | |
| CN113149470B (en) | External combustion annular sleeve kiln system and lime production method | |
| CN213179369U (en) | Double-cylinder rotary kiln for burning back tail gas | |
| CN201193237Y (en) | Tunnel type heat treating furnace for sucker rod heated by natural gas | |
| CN212102000U (en) | High-yield and energy-saving production system of activated carbon carbonization furnace | |
| CN102330980B (en) | Flame-stabilized hedging flow-equalized combustor with coal gas and air jet injecting and mixing porous bodies | |
| CN202304386U (en) | Hearth coaxial segmented burning central re-burning multi-return-stroke heat accumulation energy-saving furnace | |
| CN206862124U (en) | The natural gas kiln fired for shale brick |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHIJIAZHUANG XINHUA ENERGY ENVIRONMENTAL TECHNOLOG Free format text: FORMER OWNER: JIA HUIPING Effective date: 20130124 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 050091 SHIJIAZHUANG, HEBEI PROVINCE TO: 051431 SHIJIAZHUANG, HEBEI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130124 Address after: 051431 Hebei city of Shijiazhuang province Luancheng douyu town equipment manufacturing base of Xinhua Road No. 6 (douyu West Middle School) Patentee after: Shijiazhuang Xinhua Energy and Environmental Protection Technology Co., Ltd. Address before: 050091 Hebei city of Shijiazhuang Province in the South Street Palace Road No. 88 Patentee before: Jia Huiping |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070502 |
|
| EXPY | Termination of patent right or utility model |