CN207998559U - A kind of double bore type lime shaft kilns - Google Patents
A kind of double bore type lime shaft kilns Download PDFInfo
- Publication number
- CN207998559U CN207998559U CN201720780998.0U CN201720780998U CN207998559U CN 207998559 U CN207998559 U CN 207998559U CN 201720780998 U CN201720780998 U CN 201720780998U CN 207998559 U CN207998559 U CN 207998559U
- Authority
- CN
- China
- Prior art keywords
- shaft
- flue gas
- zone
- circular passage
- kiln
- 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
Landscapes
- Furnace Details (AREA)
Abstract
The utility model is related to a kind of double bore type lime shaft kilns, including two shaft furnaces set up, it is divided into preheating zone, burning zone and cooling zone inside the kiln body of shaft furnace.The top of preheating zone is equipped with waste gas outlet, and the lower part of cooling zone is equipped with discharge port and cooling air inlet, and kiln body top is equipped with burner.Shaft furnace is equipped with circular passage, and between burning zone and cooling zone, circular passage is fixedly mounted on the outside of kiln body by channel support for circular passage.Shaft kiln is equipped with flue gas mouth, is connected to circular passage by flue gas mouth inside kiln body.Double bore type lime shaft kilns are equipped with flue gas interface channel, and the circular passage of two shaft furnaces is connected to by flue gas interface channel.The utility model realizes parallel type calcined limestone, improves the thermal efficiency in limekiln, advantageously reduce the energy consumption of lime production by adding circular passage between the burning zone and cooling zone of shaft furnace and the setting flue gas interface channel between the circular passage of two shaft furnaces.
Description
Technical field
The utility model belongs to industrial furnace technical field, is related to a kind of limekiln, and in particular to a kind of double bore type lime
Shaft furnace.
Background technology
Lime is important construction material, and metallurgical, chemical field important source material, the prior art be with dolomite,
Lime stone is raw material, using the shaft furnace lime burning with burning beam.The deficiency of process in this way is:The direction that furnace gas flows in shaft furnace
Direction with building stones flowing is on the contrary, i.e. building stones are run from the top down, and furnace gas flows from bottom to top, and the air resistance of building stones is big, holds
Easily there is spot segregation phenomenon, causes lime stone uneven heating even, influence product quality.
The also known as double thorax cocurrent heat accumulating type limekilns of double thorax kilns, fuel enter from burning zone upper end, and with raw material cocurrent.Due to
Fuel is sprayed into from burning zone top, and raw material can absorb the heat that most of fuel is discharged, and the temperature of burning zone here
950 DEG C of average out to.Double another important feature of thorax kiln are accumulation of heats, and building stones are preheated using waste heat.Cocurrent is calcined and adverse current accumulation of heat
Thermal characteristics determines that double thorax kiln furnitures have the very high thermal efficiency, and thermal energy consumption is in all types lime such as rotary kiln, sleeve kiln
It is minimum in kiln.The existing lime shaft kiln for being completed or discarding is reconstructed thorax cocurrent kiln in pairs, can not only be carried by technological improvement
The thermal efficiency in high limekiln, and be conducive to repair the old and utilize scraps, save calciner investment.
Utility model content
The purpose of this utility model is to provide a kind of double bore type lime shaft kilns, using existing lime shaft kiln technological transformation at
The efficiency in limekiln is improved in parallel type limekiln, reduces the energy consumption of lime production.
The technical solution of the utility model is:Double bore type lime shaft kilns, including two shaft furnaces are divided into inside the kiln body of shaft furnace
Preheating zone, burning zone and cooling zone.The top of preheating zone is equipped with waste gas outlet, and the lower part of cooling zone is equipped with discharge port and cooling wind
Entrance, kiln body top are equipped with burner.Shaft furnace is equipped with circular passage, and between burning zone and cooling zone, annular is logical for circular passage
Road is fixedly mounted on the outside of kiln body by channel support.Shaft kiln is equipped with flue gas mouth, and kiln body inside smoke passes through flue gas mouth
It is connected to circular passage.Double bore type lime shaft kilns are equipped with flue gas interface channel, and the circular passage of two shaft furnaces is connected by flue gas
Channel is connected to.
Shaft kiln is equipped with 1~10 layer of flue gas mouth per side, and every layer is equipped with 2~10 flue gas mouths.Burner burns for plug-in type
Mouth.Waste gas outlet is connect by triple valve with exhaust emission system, and exhaust emission system includes deduster, air-introduced machine and chimney.
The shaft furnace is beam type kiln, periphery burner kiln or multifuel combustion kiln.
The double bore type lime shaft kilns of the utility model are improvement on the basis of existing shaft furnace, are set by the top in shaft furnace
Plug-in type burner is set, circular passage is added between the burning zone and cooling zone of shaft furnace and is arranged between the circular passage of two shaft furnaces
Flue gas interface channel realizes parallel type calcining, improves the efficiency in limekiln, advantageously reduce the energy consumption of lime production.Existing
It is transformed on the basis of the lime shaft kiln haveing been friends in the past and double thorax streaming limekilns, upgrading utilizes, construction cost is low, is a calciner
The effective way of upgrading.
Description of the drawings
Fig. 1 is the structural schematic diagram of the double bore type lime shaft kilns of the utility model;
Fig. 2 is the cross-sectional view at the utility model flue gas interface channel;
Wherein:1-waste gas outlet, 2-burners, 3-channel supports, 4-circular passages, 5-flue gas mouths, 6-cooling winds
Entrance, 7-discharge ports, 8-flue gas interface channels, 9-shaft furnaces, 10-preheating zones, 11-burning zones, 12-cooling zones.
Specific implementation mode
The utility model is described in detail with reference to embodiment and attached drawing.Scope of protection of the utility model is not limited to
Embodiment, those skilled in the art make any change in the range of claim limits and also belong to the utility model protection
Range.
The double bore type lime shaft kilns of the utility model are as shown in Figure 1, include two shaft furnaces 9, apparatus for feeding, fuel supply systems
System, discharging equipment, air feed system, control system and exhaust emission system, air feed system include cooling blower and combustion fan.It is perpendicular
It is divided into preheating zone 10, burning zone 11 and cooling zone 12 inside the kiln body of kiln, the top of preheating zone is equipped with waste gas outlet 1.Cooling zone
Lower part be equipped with discharge port 7 and cooling air inlet 6, discharge port is connect with discharging equipment, and cooling air inlet is connect with cooling blower.
Kiln body top is equipped with burner 2, and burner is plug-in type gaseous fuel burner.The fuel inlet of burner passes through triple valve and gaseous fuel
Feed system connects, and combustion air entrance is connect by triple valve with combustion fan.Shaft furnace is equipped with circular passage 4, circular passage position
Between burning zone and cooling zone, circular passage is fixedly mounted on the outside of kiln body by channel support 3.As shown in Fig. 2, shaft furnace
For square-section, kiln body side is equipped with 1 layer of flue gas mouth 5, and each side is equipped with 3 flue gas mouths, inside kiln body by flue gas mouth with
Circular passage is connected to.Double bore type lime shaft kilns are equipped with flue gas interface channel 8, and the circular passage of two shaft furnaces is connected by flue gas to be led to
Road is connected to.
The operational process of the double bore type lime shaft kilns of the utility model is that lime stone is added from kiln top, flows downward.Two perpendicular
Kiln 9 is alternately calcined and is preheated, and when the shaft furnace in left side is calcined, fuel gas and combustion air enter insertion burner, and burner 2 sprays combustion
Material and combustion air carry out the limestone material in the Shaft kiln of burning calcining left side, and it is cold under lime to be advanced into cooling zone after calcining
But, lime input and output material equipment kiln discharge after cooling.Flue gas mouth 5 of passing through under flue gas after burning enters circular passage 4.Cooling wind is through cooling
Wind entrance 6 enters the lime after cooling zone cooling calcining, and the cooling wind after heating up after cool lime enters circular passage, with flue gas
Converge the circular passage for entering right side shaft furnace through flue gas interface channel 8.Flue gas mouth 5 of the mixed gas through right side shaft furnace enters right side
The lime stone of preheating zone in the shaft furnace of preheating right side is converged and run up to the cooling wind of shaft furnace, high-temperature mixed gas and right side shaft furnace
Material, the low temperature waste gas after preheating material are discharged through 1 exhaust emission system of right side shaft furnace waste gas outlet, at this time right side shaft furnace burner
It is closed.Shaft furnace is positive pressure operation on the left of double bore type lime shaft kilns, and right side shaft furnace is negative-pressure operation, is taken out by air-introduced machine
The exhaust gas for going out right side shaft furnace forms negative pressure.Run one it is intersegmental commutate after, left side shaft furnace preheating lime stone material, right side is perpendicular
Kiln is calcined, and by control system automation control, switch operation is realized by the action of triple valve.
Claims (3)
1. a kind of double bore type lime shaft kilns, improvement on the basis of existing shaft furnace, including two shaft furnaces(9), shaft furnace is beam type
Kiln is divided into preheating zone inside the kiln body of the shaft furnace(10), burning zone(11)And cooling zone(12), the top of the preheating zone is set
There is waste gas outlet(1), the lower part of the cooling zone is equipped with discharge port(7)And cooling air inlet(6), kiln body top is equipped with burner
(2), it is characterized in that:The shaft furnace is equipped with circular passage(4), the circular passage is between burning zone and cooling zone, annular
Channel passes through channel support(3)It is fixedly mounted on the outside of kiln body;The Shaft kiln is equipped with flue gas mouth(5), kiln body inside leads to
Flue gas mouth is crossed to be connected to circular passage;Double bore type lime shaft kilns are equipped with flue gas interface channel(8), the ring of two shaft furnaces
Shape channel(4)Pass through flue gas interface channel(8)Connection;The Shaft kiln is equipped with 1~10 layer of flue gas mouth per side(5), every layer sets
There are 2~10 flue gas mouths.
2. double bore type lime shaft kilns according to claim 1, it is characterized in that:The burner(2)It is described for plug-in type burner
Plug-in type burner is solid fuel burner, liquid fuel burner or gaseous fuel burner.
3. double bore type lime shaft kilns according to claim 1, it is characterized in that:The waste gas outlet(1)By triple valve with
Exhaust emission system connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720780998.0U CN207998559U (en) | 2017-06-30 | 2017-06-30 | A kind of double bore type lime shaft kilns |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720780998.0U CN207998559U (en) | 2017-06-30 | 2017-06-30 | A kind of double bore type lime shaft kilns |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207998559U true CN207998559U (en) | 2018-10-23 |
Family
ID=63834958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720780998.0U Active CN207998559U (en) | 2017-06-30 | 2017-06-30 | A kind of double bore type lime shaft kilns |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207998559U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN111847912A (en) * | 2019-04-25 | 2020-10-30 | 中冶长天国际工程有限责任公司 | Double-chamber lime kiln system and control method thereof |
-
2017
- 2017-06-30 CN CN201720780998.0U patent/CN207998559U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111847912A (en) * | 2019-04-25 | 2020-10-30 | 中冶长天国际工程有限责任公司 | Double-chamber lime kiln system and control method thereof |
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102875036B (en) | Heat storage type lime rotary kiln | |
| CN107324671A (en) | A kind of pair of bore type lime shaft kiln | |
| US20200048146A1 (en) | Lime kiln apparatus fully recycling co2 | |
| CN207998559U (en) | A kind of double bore type lime shaft kilns | |
| CN105698524B (en) | Heat accumulating type multistage heating rotary kiln device | |
| CN103058536B (en) | Heat-accumulation dividing-wall heating rotary kiln device | |
| CN104211309B (en) | A kind of suspension cylinder formula also flows the two thorax kiln of accumulation of heat | |
| CN101817649B (en) | Method and equipment for calculating materials | |
| CN102992661B (en) | Beam type heat storage lime kiln | |
| CN101921073B (en) | Method and machine for producing lime | |
| CN101863627A (en) | Double-beam lime kiln | |
| CN102001837A (en) | Method and device for calcining materials by using low calorific value fuel | |
| CN110372322A (en) | A kind of rehabilitating historic building grey tile burning process and system | |
| CN102627418B (en) | Compound lime kiln | |
| CN203007146U (en) | Beam type heat accumulation lime kiln | |
| CN203007148U (en) | Low-heat-value fuel lime kiln | |
| CN103708744A (en) | Low-heat value gas heat accumulating type lime kiln | |
| CN2854475Y (en) | Energy-saving large envenronoment protection type oxidation pelletizing roasting shaft furnace | |
| CN204265644U (en) | Heat storage type lime rotary kiln | |
| CN211111740U (en) | Double-chamber lime kiln | |
| CN204125385U (en) | A kind of suspension cylinder formula also flows the two thorax kiln of accumulation of heat | |
| CN104496207B (en) | Heat storage type lime rotary kiln | |
| CN103482889B (en) | Heat accumulating type material calcinating device | |
| CN102351442B (en) | Method for material calcination and limekiln device | |
| CN203474654U (en) | Heat storage type rotary kiln |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |