CN204125385U - 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 PDF

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Publication number
CN204125385U
CN204125385U CN201420509294.6U CN201420509294U CN204125385U CN 204125385 U CN204125385 U CN 204125385U CN 201420509294 U CN201420509294 U CN 201420509294U CN 204125385 U CN204125385 U CN 204125385U
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China
Prior art keywords
knee
kiln
furnace
thorax
heat
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Withdrawn - After Issue
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CN201420509294.6U
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Chinese (zh)
Inventor
贾会平
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Shijiazhuang Xinhua Energy Environmental Protection Technology Co Ltd
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Shijiazhuang Xinhua Energy Environmental Protection Technology Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/40Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills

Abstract

The utility model relates to a kind of suspension cylinder formula and 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.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 utility model 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

A kind of suspension cylinder formula also flows the two thorax kiln of accumulation of heat
Technical field
The utility model belongs to chemical building material production unit technical field, relates to a kind of industrial furnace, is specifically related to a kind of suspension cylinder formula and flows 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.
Utility model content
The purpose of this utility model is to provide a kind of suspension cylinder formula and flows the two thorax kiln of accumulation of heat, optimizes the structure of two thorax kiln, is conducive to gas flow and calcining small particles material, improves processing safety and the work-ing life of two thorax kiln.
The technical solution of the utility model 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.
The utility model suspension cylinder formula 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 the utility model cooling zone 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 the utility model suspension cylinder formula 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 utility model is described in detail.The utility model protection domain 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 the utility model protection.
The utility model suspension cylinder formula 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.
The utility model suspension cylinder formula 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.
CN201420509294.6U 2014-09-05 2014-09-05 A kind of suspension cylinder formula also flows the two thorax kiln of accumulation of heat Withdrawn - After Issue CN204125385U (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104211309A (en) * 2014-09-05 2014-12-17 石家庄新华能源环保科技股份有限公司 Suspended cylinder type parallel flow heat storage double hearth kiln
CN104973810A (en) * 2015-06-24 2015-10-14 天津二十冶建设有限公司 Twin-chamber limekiln masonry measuring and positioning method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104211309A (en) * 2014-09-05 2014-12-17 石家庄新华能源环保科技股份有限公司 Suspended cylinder type parallel flow heat storage double hearth kiln
CN104211309B (en) * 2014-09-05 2016-02-10 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
CN104973810A (en) * 2015-06-24 2015-10-14 天津二十冶建设有限公司 Twin-chamber limekiln masonry measuring and positioning method
CN104973810B (en) * 2015-06-24 2017-01-18 中冶天工集团天津有限公司 Twin-chamber limekiln masonry measuring and positioning method

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AV01 Patent right actively abandoned

Granted publication date: 20150128

Effective date of abandoning: 20160210

C25 Abandonment of patent right or utility model to avoid double patenting