CN102942312A - Energy-saving environment-friendly lime shaft kiln - Google Patents
Energy-saving environment-friendly lime shaft kiln Download PDFInfo
- Publication number
- CN102942312A CN102942312A CN2012103504148A CN201210350414A CN102942312A CN 102942312 A CN102942312 A CN 102942312A CN 2012103504148 A CN2012103504148 A CN 2012103504148A CN 201210350414 A CN201210350414 A CN 201210350414A CN 102942312 A CN102942312 A CN 102942312A
- Authority
- CN
- China
- Prior art keywords
- kiln
- machine
- preheating chamber
- radiant
- burner hearth
- 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.)
- Granted
Links
- 235000008733 Citrus aurantifolia Nutrition 0.000 title claims abstract description 13
- 235000011941 Tilia x europaea Nutrition 0.000 title claims abstract description 13
- 239000004571 lime Substances 0.000 title claims abstract description 13
- 239000003245 coal Substances 0.000 claims abstract description 26
- 238000002347 injection Methods 0.000 claims abstract description 20
- 239000007924 injection Substances 0.000 claims abstract description 20
- 238000002485 combustion reaction Methods 0.000 claims abstract description 13
- 239000000779 smoke Substances 0.000 claims abstract description 8
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 3
- 230000023556 desulfurization Effects 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 21
- 239000000843 powder Substances 0.000 claims description 17
- 238000007599 discharging Methods 0.000 claims description 12
- 239000007789 gas Substances 0.000 claims description 10
- 230000003009 desulfurizing effect Effects 0.000 claims description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 6
- 239000003546 flue gas Substances 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 4
- 235000012489 doughnuts Nutrition 0.000 claims description 4
- 239000000446 fuel Substances 0.000 claims description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- 239000002817 coal dust Substances 0.000 claims description 3
- 239000003034 coal gas Substances 0.000 claims description 2
- 235000009508 confectionery Nutrition 0.000 claims description 2
- 238000010304 firing Methods 0.000 claims description 2
- 239000003345 natural gas Substances 0.000 claims description 2
- 239000002912 waste gas Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 238000011084 recovery Methods 0.000 abstract description 3
- 230000005855 radiation Effects 0.000 abstract 5
- 239000000428 dust Substances 0.000 abstract 2
- 239000003500 flue dust Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 241000208125 Nicotiana Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/40—Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills
Landscapes
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses an energy-saving environment-friendly lime shaft kiln, which comprises a kiln body, an automatic feeding machine, a kiln top distributing machine, a kiln bottom automatic unloading machine and a desulfurization dust collector connected with a kiln top exhaust pipe. The kiln body from top to bottom is provided with a preheating chamber, a radiation combustor and a high-temperature hearth; and an opening and closing type distributing device is arranged between the preheating chamber and the radiation combustor; an annular large-caliber heat recovery pipe is arranged outside the radiation combustor, and two pipe ports of the heat recovery pipe respectively communicate with the bottom of the preheating chamber and the upper part of high-temperature hearth; a coal injection machine is arranged outside the radiation combustor and the high-temperature hearth; an injection nozzle of the coal injection machine communicates with the radiation combustor; an air guide pipe of the coal injection machine communicates with the high-temperature hearth. he invention has reasonably designed structure, is easy for automation operation, changes a multifuel combustion mode of coal in a traditional shaft kiln, and solves the problems in the prior art, such as multifuel combustion mode of coal, low calorific value utilization, and serious pollution caused by smoke and dust.
Description
Technical field
The invention belongs to energy-conserving and environment-protective lime burner furnace technical field, be specifically related to a kind of energy-conserving and environment-protective lime shaft kiln.
Background technology
The energy-conserving and environment-protective limestone kiln of prior art comprises at the bottom of kiln body, automatic charging machine, kiln top material distributing machine, the kiln automatic ash-discharging machine and ejects the desulfurizing dust-collector that smoke pipe is communicated with kiln.The lime burner furnace of this structure all adopts the coal charge multifuel combustion, and utilization rate of heat value is low, and flue gas and dust pollution are serious, and labour intensity is large, poor product quality, and mechanization degree is low, and product cost is high, can't reach the energy-saving and emission-reduction requirement of the market requirement and national industrial policies.The simultaneously reasonable use of fuel has become the main examination emphasis of production unit, and the thermo-efficiency of furnace equipment directly affects the comprehensive utilization of heat energy.
Summary of the invention
The objective of the invention is to solve that prior art exists that coal charge multifuel combustion, utilization rate of heat value are low, flue gas and dust pollution is serious, labour intensity large, poor product quality, mechanization degree is low, product cost is high technical problem, provide a kind of energy-conserving and environment-protective automatization lime shaft kiln, to remedy the deficiencies in the prior art.
For achieving the above object, energy-conserving and environment-protective automatization lime shaft kiln of the present invention comprises at the bottom of kiln body, automatic charging machine, kiln top material distributing machine, the kiln automatic ash-discharging machine and ejects the desulfurizing dust-collector that smoke pipe is communicated with kiln; Its main points are from top to bottom to be provided with successively preheating chamber, radiant, high-temperature burner hearth in the kiln body, be provided with the open-close type distributor between preheating chamber and the radiant, the outside of radiant is provided with the two ends mouth of pipe and reclaims heat pipe with the annular heavy caliber that the top of the bottom of preheating chamber and high-temperature burner hearth is communicated with respectively, the outside of radiant and high-temperature burner hearth is provided with the coal powder injection machine, the nozzle of coal powder injection machine is communicated with radiant, and the induced exhaust of coal powder injection machine is communicated with high-temperature burner hearth.
For the reasonable utilization that the even preheating of material that makes in the preheating chamber improves heat energy, the bottom of said preheating chamber is provided with the donut cross wind-distributing pipe.
Described material distributing machine, open-close type distributor, automatic ash-discharging machine adopt respectively air cylinder driven, and action fast accurately puts in place.
Described coal powder injection machine can utilize the torch firing of the mixed thing of blast furnace waste gas, Sweet natural gas, coal dust and coal gas in the kiln.
Reasonable in design of the present invention, be convenient to automated operation, changed coal charge in traditional shaft furnace multifuel combustion mode, solved that prior art exists that coal charge multifuel combustion, utilization rate of heat value are low, flue gas and dust pollution is serious, labour intensity large, poor product quality, mechanization degree is low, product cost is high technical problem.
Appended drawings is structural representation of the present invention.
Among the figure 1, automatic charging machine 2, kiln top material distributing machine 3, preheating chamber 4, donut cross wind-distributing pipe 5, open-close type distributor 6, desulfurizing dust-collector 7, annular heavy caliber reclaim automatic ash-discharging machine 11 at the bottom of heat pipe 8, radiant 9, high-temperature burner hearth 10, the kiln, coal powder injection machine
Embodiment
With reference to the accompanying drawings, the present invention includes at the bottom of kiln body, automatic charging machine 1, kiln top material distributing machine 2, the kiln automatic ash-discharging machine 10 and eject the desulfurizing dust-collector 6 that smoke pipe is communicated with kiln; From top to bottom be provided with successively preheating chamber 3, radiant 8, high-temperature burner hearth 9 in the kiln body, be provided with open-close type distributor 5 between preheating chamber 3 and the radiant 8, the outside of radiant 8 is provided with the two ends mouth of pipe and reclaims heat pipe 7 with the annular heavy caliber that the top of the bottom of preheating chamber and high-temperature burner hearth is communicated with respectively, the outside of radiant and high-temperature burner hearth is provided with coal powder injection machine 11, the suction pipe of coal powder injection machine 11 is communicated with radiant 8, and the blast pipe of coal powder injection machine 11 is communicated with high-temperature burner hearth 9; The bottom of preheating chamber 3 is provided with donut cross wind-distributing pipe 4.
Principle of work of the present invention: building stones are through automatic charging machine 1, kiln top material distributing machine 2, preheating chamber 3, open-close type distributor 5, radiant 8 enters high-temperature burner hearth 9, after high-temperature burner hearth 9 has advanced material, close open-close type distributor 5, and then carry building stones to be stored in the preheating chamber 3, after preheating chamber 3 has advanced material, close again kiln top material distributing machine 2, open the coal powder injection machine to high-temperature burner hearth 9 interior igniting coal powder injections, burned flame enters 9 pairs of building stones of high-temperature burner hearth and carries out roasting, do not have the flue gas of perfect combustion and burnt grain to enter radiant 8 and carry out again secondary combustion, make fuel fully burning in radiant.Clean-burning hot gas enters 3 pairs of building stones of preheating chamber from annular heavy caliber recovery heat pipe 7 and carries out preheating, and the smoke pipe through the kiln top enters desulfurizing dust-collector 6 again, further desulfurization and dedusting.Roasting is complete, and by radially cloth wind cooling of the gas blower at the bottom of the kiln, cooling is unloaded ash by automatic ash-discharging machine 10.Then carrying out next round operation, so circulation.
The present invention changes over the direction of motion of high-temperature furnace gas identical with the material movement direction, forms concurrent heating, makes high-temperature material be in the heated condition of continous-stable, is heated the temperature of charge longer duration, is conducive to the decomposition of Wingdale and burns till quality.Segmentation preheating, heating have improved thermal zone heating-surface area, strengthened should the zone temperature homogeneity, material that all should the zone is in the isothermal environment simultaneously heats.This kiln is provided with the high temperature furnace, when heat to the processing requirement temperature and be in thermal steady state after, be in the condition of high temperature in the furnace always, furnace body temperature around the stove passes to thermal zone material with a large amount of radiant heat, strengthened heating efficiency, adopt pulverized coal combustor, coal dust is rapidly burning in the high temperature furnace, the volatilization powder that forms and burnt grain carry out secondary combustion again, make fuel abundant in the combustion chamber internal combustion, can not form the pollutents such as tobacco (fugitive constituent) and black smoke (fixed carbon and carbon black), reach desirable national fume emission requirement.The annular heavy caliber reclaims heat pipe, impels the discharging of furnace gas unobstructed, has guaranteed simultaneously the furnace gas discharging homogeneity along the stove cross section, and the branch that has improved gas stream in the stove has reduced the resistance of gas stream in the stove, makes the exhaust-heat absorption utilization of gas.
Complete each point operation of kiln all adopts air cylinder driven, and action fast accurately puts in place.The material loading of kiln, blanking enter stove and give thermal zone feed, and bottom discharge all adopts the pneumatics operation, by time relay control, have reduced personnel's operation link, have improved production efficiency.
The furnace roof flue gas is processed through desulfurizing dust-collector through after recycling preheating again, reaches discharging standards.
The present invention names and is energy saving and environment friendly FJC shaft furnace.
Although above-mentionedly by reference to the accompanying drawings the specific embodiment of the present invention is described; but be not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection scope of the present invention.
Claims (5)
1. energy-conserving and environment-protective lime shaft kiln comprises at the bottom of kiln body, automatic charging machine, kiln top material distributing machine, the kiln automatic ash-discharging machine and ejects the desulfurizing dust-collector that smoke pipe is communicated with kiln; It is characterized in that from top to bottom being provided with successively in the kiln body preheating chamber, radiant, high-temperature burner hearth, be provided with the open-close type distributor between preheating chamber and the radiant, the outside of radiant is provided with the two ends mouth of pipe and reclaims heat pipe with the annular heavy caliber that the top of the bottom of preheating chamber and high-temperature burner hearth is communicated with respectively, the outside of radiant and high-temperature burner hearth is provided with the coal powder injection machine, the nozzle of coal powder injection machine is communicated with radiant, and the induced exhaust of coal powder injection machine is communicated with high-temperature burner hearth
2. energy-conserving and environment-protective lime shaft kiln according to claim 1 is characterized in that the bottom of said preheating chamber is provided with the donut cross wind-distributing pipe.
3. energy-conserving and environment-protective lime shaft kiln according to claim 1 is characterized in that said material distributing machine, open-close type distributor, automatic ash-discharging machine are respectively by air cylinder driven.
4. energy-conserving and environment-protective lime shaft kiln according to claim 1 is characterized in that described coal powder injection machine utilizes the mixed thing of blast furnace waste gas, Sweet natural gas, coal dust and coal gas torch firing in the kiln.
5. the using method of the described energy-conserving and environment-protective lime shaft kiln of claim 1-4, it is characterized in that, the shaft furnace building stones are through automatic charging machine, kiln top material distributing machine, preheating chamber, the open-close type distributor, radiant enters high-temperature burner hearth, after high-temperature burner hearth has advanced material, close the open-close type distributor, and then carry building stones to be stored in the preheating chamber, after preheating chamber has advanced material, close again kiln top material distributing machine, open the coal powder injection of lighting a fire in the high-temperature burner hearth of coal powder injection machine, burned flame enters high-temperature burner hearth building stones is carried out roasting, do not have the flue gas of perfect combustion and burnt grain to enter radiant and carry out secondary combustion again, make fuel fully burning in radiant, clean-burning hot gas reclaims heat pipe from annular heavy caliber and enters preheating chamber building stones are carried out preheating, smoke pipe through the kiln top enters desulfurizing dust-collector again, further desulfurization and dedusting; Roasting is complete, and by radially wind-distributing pipe cooling of the gas blower at the bottom of the kiln, cooling is unloaded ash by the automatic ash-discharging machine, is then carrying out next round operation, so circulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210350414.8A CN102942312B (en) | 2009-12-15 | 2009-12-15 | Energy-saving environment-friendly lime shaft kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210350414.8A CN102942312B (en) | 2009-12-15 | 2009-12-15 | Energy-saving environment-friendly lime shaft kiln |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102314924A Division CN102092967B (en) | 2009-12-15 | 2009-12-15 | Energy-saving and environmentally-friendly automatic lime shaft kiln |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102942312A true CN102942312A (en) | 2013-02-27 |
| CN102942312B CN102942312B (en) | 2014-05-07 |
Family
ID=47725334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210350414.8A Expired - Fee Related CN102942312B (en) | 2009-12-15 | 2009-12-15 | Energy-saving environment-friendly lime shaft kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102942312B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105018720A (en) * | 2015-07-07 | 2015-11-04 | 青岛智邦炉窑设计研究有限公司 | Coal powder injection mineral roasting device and technology |
| CN106630692A (en) * | 2017-02-22 | 2017-05-10 | 中冶华天工程技术有限公司 | Lime cooling device for sleeve kiln |
| CN109502999A (en) * | 2018-12-27 | 2019-03-22 | 江苏省建筑材料研究设计院有限公司 | The efficient ash discharging gear of controllable type for active lime energy conservation and environmental protection mechanical shaft kiln |
| CN110240425A (en) * | 2019-06-05 | 2019-09-17 | 黄远辉 | Novel lime shaft kiln |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1156474A (en) * | 1995-06-28 | 1997-08-06 | 液态碳工业公司 | Static furnace for thermal decomposition solids at high temperature by thermal rediation |
-
2009
- 2009-12-15 CN CN201210350414.8A patent/CN102942312B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105018720A (en) * | 2015-07-07 | 2015-11-04 | 青岛智邦炉窑设计研究有限公司 | Coal powder injection mineral roasting device and technology |
| CN106630692A (en) * | 2017-02-22 | 2017-05-10 | 中冶华天工程技术有限公司 | Lime cooling device for sleeve kiln |
| CN106630692B (en) * | 2017-02-22 | 2019-11-05 | 中冶华天工程技术有限公司 | Sleeve kiln lime cooling device |
| CN109502999A (en) * | 2018-12-27 | 2019-03-22 | 江苏省建筑材料研究设计院有限公司 | The efficient ash discharging gear of controllable type for active lime energy conservation and environmental protection mechanical shaft kiln |
| CN110240425A (en) * | 2019-06-05 | 2019-09-17 | 黄远辉 | Novel lime shaft kiln |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102942312B (en) | 2014-05-07 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220701 Address after: 276100 home appliance industrial park, Lizhuang Town, Tancheng County, Linyi City, Shandong Province Patentee after: Linyi Juda Technology Environmental Protection Engineering Co.,Ltd. Address before: 276021 Linyi Central Asia energy conservation and Environmental Protection Technology Research Institute, front and rear Tan Village, xigaodu office, Luozhuang District, Linyi City, Shandong Province Patentee before: Chen Jujun |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 |