CN104211309B - A kind of suspension cylinder formula also flows the two thorax kiln of accumulation of heat - Google Patents
A kind of suspension cylinder formula also flows the two thorax kiln of accumulation of heat Download PDFInfo
- Publication number
- CN104211309B CN104211309B CN201410449642.XA CN201410449642A CN104211309B CN 104211309 B CN104211309 B CN 104211309B CN 201410449642 A CN201410449642 A CN 201410449642A CN 104211309 B CN104211309 B CN 104211309B
- Authority
- CN
- China
- Prior art keywords
- thorax
- wall
- kiln
- furnace wall
- knee
- 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.)
- Active
Links
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
- Furnace Details (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The present invention relates to a kind of suspension cylinder formula and flow the two thorax kiln of accumulation of heat, comprising two thorax kiln body, apparatus for feeding, discharging equipment, air feed system and exhaust emission system.Two thorax kiln body is made up of top inner furnace wall and bottom outer furnace wall, and inner furnace wall is suspended on outer furnace wall.Preheating zone, calcining zone and cooling zone is provided with in two thorax kiln body.Cooling zone is provided with knee wall, and knee wall laying fireproof bricks forms, and the knee wall of each kiln thorax is along outer furnace wall annular spread.Knee wall top is provided with supporting arch, and supporting arch rides between two adjacent knee walls, and inner furnace wall hangs and is arranged on supporting arch, and knee wall plays a supportive role to inner furnace wall.The present invention is evenly arranged knee wall in outer furnace wall circumferential direction inside, inner furnace wall is carried by knee wall and the supporting arch be positioned on knee wall, make two thorax kiln one-piece construction more firm, exhaust gases passes is not fragile, improve the processing safety of two thorax kiln, be conducive to extending manufacture cycle and work-ing life.
Description
Technical field
The invention belongs to chemical building material production unit technical field, relate to a kind of industrial furnace, be specifically related to a kind of suspension cylinder formula and flow the two thorax kiln of accumulation of heat.
Background technology
Two thorax kiln is also known as two thorax and flow heat accumulating type limestone kiln, fuel enters from calcining zone upper end, and flows with raw material.Because fuel sprays into from calcining zone top, raw material can absorb the heat that most of fuel discharges herein, and the temperature-averaging of calcining zone is 950 DEG C.Two another important feature of thorax kiln is accumulation of heat, utilizes accumulation of heat preheating part combustion air.And stream calcining and the thermal characteristics of adverse current accumulation of heat determine two thorax kiln furnitures very high thermo-efficiency, its heat energy consumption is minimum in all types such as rotary kiln, sleeve kiln limestone kiln, and the overall heat consumption of production lime is lower than being 3.8GJ/ ton lime.
And the supporting way flowing the two thorax kiln calcining zones of accumulation of heat and above inner furnace wall has two kinds, a kind of is traditional corbel type supporting structure, and another kind is suspension cylinder formula supporting structure.Bracket support type to flow subject matter that the two thorax kiln of accumulation of heat exists be that the magnesia brick thermal shock resistance of building by laying bricks or stones is poor, thermal expansivity is large, easily causes brick body to ftracture, affect processing safety and work-ing life in baking kiln process.
Summary of the invention
The object of this invention is to provide a kind of suspension cylinder formula and flow the two thorax kiln of accumulation of heat, optimizing the structure of two thorax kiln, being conducive to gas flow and calcining small particles material, improving processing safety and the work-ing life of two thorax kiln.
Technical scheme of the present invention is: suspension cylinder formula also flows the two thorax kiln of accumulation of heat, comprises two thorax kiln body, apparatus for feeding, discharging equipment, air feed system and exhaust emission system.Two thorax kiln body is made up of top inner furnace wall and bottom outer furnace wall, and inner furnace wall is suspended on outer furnace wall.Preheating zone, calcining zone and cooling zone is provided with in two thorax kiln body.Preheating zone is provided with air inlet/outlet, and air inlet/outlet is connected with gas blower and exhaust emission system by T-valve.Calcining zone is provided with burner, and burner is connected with fuel feed system.Cooling zone is provided with cooling air inlet, and cooling air inlet is connected with cooling blower by T-valve.Cooling zone is provided with knee wall, and knee wall runs through whole cooling zone, and knee wall bottom connects with kiln body basis.The knee wall of each kiln thorax is along outer furnace wall annular spread.Knee wall top is provided with supporting arch, and supporting arch rides between two adjacent knee walls, and inner furnace wall hangs and is arranged on supporting arch, and knee wall plays a supportive role to inner furnace wall.
Burner is insert burner, burning beam or periphery burner, and insert burner is geseous fuel burner, liquid fuel burner or solid fuel burner.Apparatus for feeding comprises loading hopper, reinforced lock, distributor and feeder.Exhaust emission system comprises fly-ash separator, induced draft fan and chimney.Be provided with circular channel on knee wall, circular channel is between inner furnace wall and outer furnace wall.The quantity of knee wall is each kiln thorax 4 ~ 20, is preferably 8.
Knee wall laying fireproof bricks forms.
Suspension cylinder formula of the present invention also flows the two thorax kiln of accumulation of heat and is evenly arranged knee wall in outer furnace wall circumferential direction inside, and knee wall runs through whole cooling zone, and knee wall bottom connects with kiln body basis.Carry inner furnace wall by knee wall and the supporting arch be positioned on knee wall, make two thorax kiln one-piece construction more firm, exhaust gases passes is not fragile, improves the processing safety of two thorax kiln, is conducive to extending manufacture cycle and work-ing life.Material is separated a few part by the knee wall that the circumference of cooling zone of the present invention is arranged, and utilizes wall effect to reduce gas-flow resistance, makes air-flow more easily penetrate the bed of material, can improve cooling performance simultaneously.Two thorax kiln is conducive to the limestone material of calcining small particle size, and the lime quality of production is good.
Accompanying drawing explanation
Fig. 1 is suspension cylinder formula of the present invention and the two thorax kiln structural representation of stream;
Fig. 2 is the A-A figure of Fig. 1;
Wherein:
1-loading hopper, 2-gas blower, 3-reinforced lock, 4-air inlet/outlet, 5-inner furnace wall, 6-circular channel, 7-outer furnace wall, 8-knee wall, 9-cooling air inlet, 10-discharge lock, 11-distributor, 12-T-valve, 13-burner, 14-exhaust gases passes, 15-supporting arch, 16-cooling zone, 17-cooling blower, 18-exhaust emission system, 19-preheating zone, 20-calcining zone.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in detail.Scope is not limited to embodiment, and any change that those skilled in the art make in the scope that claim limits also belongs to the scope of protection of the invention.
Suspension cylinder formula of the present invention also flows the two thorax kiln of accumulation of heat as shown in Figure 1, comprises two thorax kiln body, apparatus for feeding, discharging equipment, air feed system and exhaust emission system 18.Apparatus for feeding comprises loading hopper 1, reinforced lock 3, distributor 11 and feeder, and discharge port is provided with discharge lock 10.Exhaust emission system comprises fly-ash separator, induced draft fan and chimney.Two thorax kiln body is made up of top inner furnace wall 5 and bottom outer furnace wall 7, and inner furnace wall is suspended on outer furnace wall.Preheating zone 19, calcining zone 20 and cooling zone 16 is provided with in two thorax kiln body.Preheating zone is provided with air inlet/outlet 4, and air inlet/outlet is connected with gas blower 2 and exhaust emission system 18 by T-valve 12.Calcining zone is provided with burner 13, and burner is insert burner, and burner is geseous fuel burner.Cooling zone is provided with cooling air inlet 9, and cooling air inlet is connected with cooling blower 17 by T-valve.As shown in Figure 2, cooling zone is provided with 8 seat supports walls 8, and knee wall 8 forms with laying fireproof bricks, and knee wall runs through whole cooling zone, and knee wall bottom connects with kiln body basis, and the knee wall of each kiln thorax is along outer furnace wall annular spread.Knee wall top is provided with supporting arch 15, and supporting arch rides between two adjacent knee walls, and inner furnace wall hangs and is arranged on supporting arch, and knee wall plays a supportive role to inner furnace wall.Be provided with circular channel 6 on knee wall, circular channel is between inner furnace wall and outer furnace wall.
Suspension cylinder formula of the present invention the operational process flowing the two thorax kiln of accumulation of heat are: during the calcining of left side kiln thorax, fuel gas is by the insert burner ejection fuel in left side, gas blower enters kiln thorax by T-valve 12 from air inlet/outlet 4 and carries out combustion-supporting burning, the limestone material in the kiln thorax of calcining left side.The flue gas that calcining produces, after exhaust gases passes 14 to the material in the kiln thorax preheating kiln thorax of right side, then discharges to exhaust emission system through the air inlet/outlet 4 of right side kiln thorax and T-valve.Be distributed in during calcining on the transverse section of whole kiln thorax, the uniform temperature fields on each transverse section of calcining zone is consistent, is conducive to very much the uniform calcination of Wingdale uniform fuel.Run and commutate after 12 minutes, after commutation, right side kiln thorax is calcined, and left side kiln thorax carries out accumulation of heat, and both sides kiln thorax hockets and flows calcining and adverse current accumulation of heat, realizes automatic reverse operation by the action of T-valve and material inlet valve.Lime after having calcined enters cooling zone 16, carries out heat exchange with the cooling air entered from cooling air inlet 9, makes lime temperature drop to 60 ~ 80 DEG C, then through discharge lock 10 kiln discharge.Cooling air temperature after cool lime raises, and rises to exhaust gases passes 14 and is mixed into just at the kiln thorax of accumulation of heat with combustion product gases.Mixed gas and Wingdale directly carry out heat exchange, and thermal energy transfer is dropped to about 160 ~ 180 DEG C to exhaust emission system discharge to temperature after Wingdale.Form circular channel between the inner, external wall of knee wall top, the flue gas that one-period combustion is produced evenly can enter circular channel, evenly enters another kiln thorax by the exhaust gases passes connecting two kiln thoraxes.
Claims (7)
1. a suspension cylinder formula flow the two thorax kiln of accumulation of heat, comprise two thorax kiln body, apparatus for feeding, discharging equipment, air feed system and exhaust emission system (18), described pair of thorax kiln body is made up of top inner furnace wall (5) and bottom outer furnace wall (7), inner furnace wall is suspended on outer furnace wall, is provided with preheating zone (19), calcining zone (20) and cooling zone (16) in two thorax kiln body; Described preheating zone is provided with air inlet/outlet (4), and air inlet/outlet is connected with gas blower (2) and exhaust emission system (18) by T-valve (12); Described calcining zone is provided with burner (13), and described cooling zone is provided with cooling air inlet (9), and cooling air inlet is connected with cooling blower (17) by T-valve; It is characterized in that: described cooling zone is provided with knee wall (8), and knee wall runs through whole cooling zone, knee wall bottom connects with kiln body basis; The knee wall of each kiln thorax is along outer furnace wall annular spread; The top of described knee wall is provided with supporting arch (15), and described supporting arch rides between two adjacent knee walls, and described inner furnace wall hangs and is arranged on supporting arch.
2. suspension cylinder formula according to claim 1 flow the two thorax kiln of accumulation of heat, is characterized in that: described burner (13) is insert burner, burning beam or periphery burner; Described insert burner is geseous fuel burner, liquid fuel burner or solid fuel burner.
3. suspension cylinder formula according to claim 1 flow the two thorax kiln of accumulation of heat, is characterized in that: described apparatus for feeding comprises loading hopper (1), reinforced lock (3), distributor (11) and feeder.
4. suspension cylinder formula according to claim 1 flow the two thorax kiln of accumulation of heat, is characterized in that: described exhaust emission system comprises fly-ash separator, induced draft fan and chimney.
5. suspension cylinder formula according to claim 1 flow the two thorax kiln of accumulation of heat, it is characterized in that: be provided with circular channel (6) on described knee wall (8), described circular channel is positioned between inner furnace wall (5) and outer furnace wall (7).
6. suspension cylinder formula according to claim 1 flow the two thorax kiln of accumulation of heat, is characterized in that: the quantity of described knee wall (8) is each kiln thorax 4 ~ 20.
7. suspension cylinder formula according to claim 1 flow the two thorax kiln of accumulation of heat, is characterized in that: described knee wall (8) forms with laying fireproof bricks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410449642.XA CN104211309B (en) | 2014-09-05 | 2014-09-05 | A kind of suspension cylinder formula also flows the two thorax kiln of accumulation of heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410449642.XA CN104211309B (en) | 2014-09-05 | 2014-09-05 | A kind of suspension cylinder formula also flows the two thorax kiln of accumulation of heat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104211309A CN104211309A (en) | 2014-12-17 |
| CN104211309B true CN104211309B (en) | 2016-02-10 |
Family
ID=52093275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410449642.XA Active CN104211309B (en) | 2014-09-05 | 2014-09-05 | A kind of suspension cylinder formula also flows the two thorax kiln of accumulation of heat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104211309B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106705674A (en) * | 2015-11-17 | 2017-05-24 | 上海宝冶建设工业炉工程技术有限公司 | Material feeding and distributing device for double-chamber kiln |
| CN107324671A (en) * | 2017-06-30 | 2017-11-07 | 上海柯来浦能源科技有限公司 | A kind of pair of bore type lime shaft kiln |
| CN110903042A (en) * | 2019-12-17 | 2020-03-24 | 石家庄新华能源环保科技股份有限公司 | Double-hearth lime kiln with denitration equipment |
| CN111454004A (en) * | 2020-04-23 | 2020-07-28 | 中冶南方武汉钢铁设计研究院有限公司 | Double-chamber lime kiln |
| CN111908811B (en) * | 2020-08-07 | 2022-03-25 | 沈阳红杉科技有限公司 | Double-hearth kiln burning low-calorific-value fuel |
| CN111997079A (en) * | 2020-09-27 | 2020-11-27 | 中冶京诚工程技术有限公司 | Blast furnace foundation structure |
| CN112479607B (en) * | 2020-12-01 | 2022-05-20 | 石家庄新华能源环保科技股份有限公司 | Hanging cylinder type parallel-flow heat storage double-hearth kiln with cooling structure |
| CN114646222B (en) * | 2022-03-25 | 2023-07-21 | 上海宝冶冶金工程有限公司 | Annular cooling beam and double-chamber kiln |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB900175A (en) * | 1960-06-17 | 1962-07-04 | Maerz Ofenbau | Improvements in or relating to furnace roofs |
| CN200978255Y (en) * | 2006-12-14 | 2007-11-21 | 张振聪 | Double-chamber double-channel lime burner |
| CN102557492A (en) * | 2012-01-06 | 2012-07-11 | 石家庄市新华工业炉有限公司 | Heat accumulating type double-hearth lime kiln |
| CN102701610A (en) * | 2012-06-30 | 2012-10-03 | 石家庄市新华工业炉有限公司 | Concurrent flow type double-hearth limekiln |
| CN203033894U (en) * | 2012-12-31 | 2013-07-03 | 广东韶钢松山股份有限公司 | Parallel flow heat storage double chamber kiln support arch structure |
| CN103601376A (en) * | 2013-11-18 | 2014-02-26 | 中冶焦耐工程技术有限公司 | Sleeve type double-hearth shaft kiln |
| CN203668244U (en) * | 2013-09-26 | 2014-06-25 | 谢永红 | Novel cooling system for double-hearth lime kiln suspension cylinders |
| CN204125385U (en) * | 2014-09-05 | 2015-01-28 | 石家庄新华能源环保科技股份有限公司 | A kind of suspension cylinder formula also flows the two thorax kiln of accumulation of heat |
-
2014
- 2014-09-05 CN CN201410449642.XA patent/CN104211309B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB900175A (en) * | 1960-06-17 | 1962-07-04 | Maerz Ofenbau | Improvements in or relating to furnace roofs |
| CN200978255Y (en) * | 2006-12-14 | 2007-11-21 | 张振聪 | Double-chamber double-channel lime burner |
| CN102557492A (en) * | 2012-01-06 | 2012-07-11 | 石家庄市新华工业炉有限公司 | Heat accumulating type double-hearth lime kiln |
| CN102701610A (en) * | 2012-06-30 | 2012-10-03 | 石家庄市新华工业炉有限公司 | Concurrent flow type double-hearth limekiln |
| CN203033894U (en) * | 2012-12-31 | 2013-07-03 | 广东韶钢松山股份有限公司 | Parallel flow heat storage double chamber kiln support arch structure |
| CN203668244U (en) * | 2013-09-26 | 2014-06-25 | 谢永红 | Novel cooling system for double-hearth lime kiln suspension cylinders |
| CN103601376A (en) * | 2013-11-18 | 2014-02-26 | 中冶焦耐工程技术有限公司 | Sleeve type double-hearth shaft kiln |
| CN204125385U (en) * | 2014-09-05 | 2015-01-28 | 石家庄新华能源环保科技股份有限公司 | A kind of suspension cylinder formula also flows the two thorax kiln of accumulation of heat |
Non-Patent Citations (1)
| Title |
|---|
| 悬挂缸式麦尔兹石灰窑技术特点;王志文等;《柳钢科技》;20080430(第4期);8-10 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104211309A (en) | 2014-12-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104211309B (en) | A kind of suspension cylinder formula also flows the two thorax kiln of accumulation of heat | |
| CN102875036B (en) | Heat storage type lime rotary kiln | |
| CN105698524B (en) | Heat accumulating type multistage heating rotary kiln device | |
| CN102627418B (en) | Compound lime kiln | |
| CN107324671A (en) | A kind of pair of bore type lime shaft kiln | |
| CN102230726A (en) | Sleeve type continuous calcining vertical kiln | |
| CN202204270U (en) | A sleeve type continuous burning shaft kiln | |
| CN204125385U (en) | A kind of suspension cylinder formula also flows the two thorax kiln of accumulation of heat | |
| CN102992661B (en) | Beam type heat storage lime kiln | |
| CN203007148U (en) | Low-heat-value fuel lime kiln | |
| CN109592916A (en) | A kind of double thorax kilns | |
| CN102288022B (en) | Sleeve-type gas-burning shaft kiln | |
| CN102992660B (en) | Low-heat value fuel lime kiln | |
| CN203474652U (en) | Heat accumulating type lime rotary kiln | |
| CN203007146U (en) | Beam type heat accumulation lime kiln | |
| CN104833203A (en) | Heat-accumulating-type cement calcination device | |
| CN207998559U (en) | A kind of double bore type lime shaft kilns | |
| CN104359300B (en) | A kind of drying and calcining machining center | |
| CN101456684A (en) | Lime burner using solid fuels | |
| CN103482889B (en) | Heat accumulating type material calcinating device | |
| CN102745925B (en) | Rotary kiln for ardealite calcination | |
| CN203478938U (en) | Rotary kiln apparatus with energy recovery equipment | |
| CN104496207B (en) | Heat storage type lime rotary kiln | |
| CN204265644U (en) | Heat storage type lime rotary kiln | |
| CN102951859B (en) | Heat accumulating type lime kiln |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |