CN104121771A - Rotary kiln for cement manufacturing - Google Patents
Rotary kiln for cement manufacturing Download PDFInfo
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- CN104121771A CN104121771A CN201410368019.1A CN201410368019A CN104121771A CN 104121771 A CN104121771 A CN 104121771A CN 201410368019 A CN201410368019 A CN 201410368019A CN 104121771 A CN104121771 A CN 104121771A
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- kiln
- cylindrical shell
- heat exchange
- rotary kiln
- tube
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Abstract
The invention relates to the field of rotary kilns, in particular to a rotary kiln for cement manufacturing. The rotary kiln comprises a tube and a drive device. A material inlet is formed in the side wall of the tail of the kiln, and a material outlet is formed in the head end of the kiln. The drive device comprises a motor and a speed reducer, wherein the motor is connected with the kiln tail of the tube through the speed reducer. A pre-decomposition kiln and a calcinator are arranged in the tube, the pre-decomposition kiln comprises a combustion part and a heat exchanging part, the combustion part is arranged on the inner wall of the pre-decomposition kiln in a surrounding mode, fuel is contained in the combustion part, and the combustion part is formed by a steel plate and the inner wall of the tube in a surrounding mode. Multiple through holes are formed in the steel plate, the size of the through holes is set in the mode that while heating gas is allowed to pass, the fuel is not allowed to pass, cylindrical space defined by the steel plate is the heat exchanging part, and material enters the heat exchanging part through the material inlet of the tube. Through changing the connecting position of the motor and the tube of the rotary kiln, occupied space is reduced; the heat exchanging efficiency of the material and high-temperature gas in the pre-decomposition kiln and the calcinator is improved, and production cost is reduced.
Description
Technical field
The present invention relates to rotary kiln field, relate in particular to a kind of cement and prepare rotary kiln.
Background technology
In many production industries such as building materials, metallurgy, chemical industry, environmental protection, use widely rotary kiln to carry out machinery, physical or chemical treatment to solid material.Current rotary kiln is generally the endfeed from kiln, other end discharging, and material relies on the gradient of rotary kiln and the rotation of kiln to travel forward in kiln.The motor that present driving rotary kiln rotates is arranged on the middle part of cylinder of rotary kiln conventionally, take larger space, and the preheating of material when preheating is insufficient, and then affects next step calcining, need to consume more fuel, and cost is higher.
Summary of the invention
For above-mentioned technical problem, the present invention has designed and developed a kind of cement and has prepared rotary kiln, and object is to change the link position of motor and cylinder of rotary kiln, reduces to take up room; In raising nsp kiln and calcining furnace, the heat exchange efficiency of material and high-temperature gas, reduces production costs.
Technical scheme provided by the invention is:
Cement is prepared a rotary kiln, comprising:
Cylindrical shell, it is installed on the ground by fixture, on the kiln tail sidewall of described cylindrical shell, is provided with charging aperture, and the kiln hood end of described cylindrical shell is provided with discharging opening;
Transmission device, it comprises motor and reductor, described motor is connected with the kiln tail of described cylindrical shell by reductor;
Wherein, in described cylindrical shell, be provided with nsp kiln and calcining furnace, described nsp kiln comprises burning portion and heat exchange portion, described burning portion ring is located on the inwall of described nsp kiln, fuel is placed in described burning portion, described burning portion is established and is formed by steel plate and described cylinder inboard wall ring, on described steel plate, offer a plurality of through holes, the size of described through hole to allow heated air to arrange by the mode that does not allow fuel to pass through simultaneously, in described burning portion, a plurality of air blasts are also installed, the cylindrical space that described steel plate surrounds is described heat exchange portion, the charging aperture of material by described cylindrical shell enters in described heat exchange portion.
Preferably, described cement is prepared in rotary kiln, in described calcining furnace, be provided with stair-stepping material dispatch tube, and the position of the entrance point of described stair-stepping material dispatch tube is not higher than the position of the described heat exchange portion port of export, but the position higher than the port of export of material dispatch tube, space between material dispatch tube and cylinder inboard wall is fuel gas channel, and the material that the high-temperature gas that the fuel chambers being connected with described cylindrical shell kiln hood end produces enters in described fuel gas channel and material dispatch tube under the effect of air blast carries out exchange heat.
Preferably, described cement is prepared in rotary kiln, described stair-stepping material dispatch tube is set to two groups, and the position of two groups of stair-stepping material dispatch tube entrance points is not all higher than the position of the described heat exchange portion port of export, and be connected with the port of export of described heat exchange portion by tube connector, between two groups of stair-stepping material dispatch tubes, be reserved with space, the high-temperature gas that described space allows fuel chambers to produce passes through.
Preferably, described cement is prepared in rotary kiln, and the kiln tail end of described cylindrical shell is provided with adpting flange, and described reductor is connected with described cylindrical shell by described adpting flange.
Preferably, described cement is prepared in rotary kiln, and described fixture comprises the wheel band being set on described cylindrical shell and is supported on described support roller of taking turns with both sides.
Cement of the present invention is prepared in rotary kiln, and described motor and reductor are arranged on the kiln tail end of described cylindrical shell, and charging aperture is opened on the kiln tail sidewall of described cylindrical shell, has both reduced taking up room of transmission device, does not affect again normal material and enters.The burning portion of described nsp kiln is established and is formed by steel plate and described cylinder inboard wall ring, and fuel is placed in one, and material is in the heat exchange portion being surrounded by fuel surrounding, is conducive to the abundant heat exchange of high-temperature steam that produces with fuel, has improved heat exchange efficiency.And two groups of stair-stepping material dispatch tubes that arrange in described calcining furnace, further improved the potential energy difference in material transport process on the one hand, be conducive to the smooth delivery of power of material, two groups of materials separately transmit on the other hand, more abundant with contacting of high-temperature gas, heat transfer effect is better.
Accompanying drawing explanation
Fig. 1 is the axial section schematic diagram that cement of the present invention is prepared rotary kiln;
Fig. 2 is the radial section schematic diagram that cement of the present invention is prepared rotary kiln.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail, to make those skilled in the art can implement according to this with reference to description word.
As depicted in figs. 1 and 2, the invention provides a kind of cement and prepare rotary kiln, comprising:
Cylindrical shell 1, it is installed on the ground by fixture 4, and kiln tail end is higher than kiln hood end, on the kiln tail sidewall of described cylindrical shell, is provided with charging aperture 5, and the kiln hood end of described cylindrical shell is provided with discharging opening;
Transmission device, it comprises motor 2 and reductor 3, described motor is connected with the kiln tail of described cylindrical shell by reductor;
Wherein, in described cylindrical shell, be provided with nsp kiln 6 and calcining furnace 7, described nsp kiln comprises burning portion 8 and heat exchange portion 9, described burning portion ring is located on the inwall of described nsp kiln, fuel 10 is placed in described burning portion, described burning portion is established and is formed by steel plate and described cylinder inboard wall ring, on described steel plate, offer a plurality of through holes 11, the size of described through hole to allow heated air to arrange by the mode that does not allow fuel to pass through simultaneously, in described burning portion, a plurality of air blasts 12 are also installed, so that the high-temperature gas smooth delivery of power that fuel combustion is produced is to heat exchange portion, the cylindrical space that described steel plate surrounds is described heat exchange portion, the charging aperture of material by described cylindrical shell enters in described heat exchange portion, because burning portion encircles the surrounding that is located at heat exchange portion, under the effect of air blast, the high-temperature gas that fuel combustion produces enters from all quarter in heat exchange portion and carries out directly contacting fully with material, owing to not needing medium transferring heat, thereby heat exchange efficiency is higher.
Described cement is prepared in rotary kiln, in described calcining furnace, be provided with stair-stepping material dispatch tube 13, and the position of the entrance point of described stair-stepping material dispatch tube is not higher than the position of the described heat exchange portion port of export, but the position higher than the port of export of material dispatch tube, so that material can enter smoothly in material dispatch tube from the heat exchange portion of nsp kiln, can export smoothly from material dispatch tube again; Space between material dispatch tube and cylinder inboard wall is fuel gas channel 14, and the material that the high-temperature gas that the fuel chambers 15 being connected with described cylindrical shell kiln hood end produces enters in described fuel gas channel and material dispatch tube under the effect of air blast carries out exchange heat.
Described cement is prepared in rotary kiln, described stair-stepping material dispatch tube is set to two groups, in order to avoid material is excessively piled up, inner material can not fully contact with high-temperature gas, calcining not exclusively, and the position of two groups of stair-stepping material dispatch tube entrance points is not all higher than the position of the described heat exchange portion port of export, be arranged in parallel one on the other, and be connected with the port of export of described heat exchange portion by tube connector 16, between two groups of stair-stepping material dispatch tubes, be reserved with space, the high-temperature gas that described space allows fuel chambers to produce passes through.
Described cement is prepared in rotary kiln, and the kiln tail end of described cylindrical shell is provided with adpting flange 17, and described reductor is connected with described cylindrical shell by described adpting flange.
Described cement is prepared in rotary kiln, and described fixture comprises the wheel that is set on described cylindrical shell with 18 and is supported on described support roller 19 of taking turns with both sides.
Although embodiment of the present invention are open as above, but it is not restricted to listed utilization in description and embodiment, it can be applied to various applicable the field of the invention completely, for those skilled in the art, can easily realize other modification, therefore do not deviating under the universal that claim and equivalency range limit, the present invention is not limited to specific details and illustrates here and the legend of describing.
Claims (5)
1. cement is prepared a rotary kiln, it is characterized in that, comprising:
Cylindrical shell, it is installed on the ground by fixture, on the kiln tail sidewall of described cylindrical shell, is provided with charging aperture, and the kiln hood end of described cylindrical shell is provided with discharging opening;
Transmission device, it comprises motor and reductor, described motor is connected with the kiln tail of described cylindrical shell by reductor;
Wherein, in described cylindrical shell, be provided with nsp kiln and calcining furnace, described nsp kiln comprises burning portion and heat exchange portion, described burning portion ring is located on the inwall of described nsp kiln, fuel is placed in described burning portion, described burning portion is established and is formed by steel plate and described cylinder inboard wall ring, on described steel plate, offer a plurality of through holes, the size of described through hole to allow heated air to arrange by the mode that does not allow fuel to pass through simultaneously, in described burning portion, a plurality of air blasts are also installed, the cylindrical space that described steel plate surrounds is described heat exchange portion, the charging aperture of material by described cylindrical shell enters in described heat exchange portion.
2. cement as claimed in claim 1 is prepared rotary kiln, it is characterized in that, in described calcining furnace, be provided with stair-stepping material dispatch tube, and the position of the entrance point of described stair-stepping material dispatch tube is not higher than the position of the described heat exchange portion port of export, but the position higher than the port of export of material dispatch tube, space between material dispatch tube and cylinder inboard wall is fuel gas channel, and the material that the high-temperature gas that the fuel chambers being connected with described cylindrical shell kiln hood end produces enters in described fuel gas channel and material dispatch tube under the effect of air blast carries out exchange heat.
3. cement as claimed in claim 2 is prepared rotary kiln, it is characterized in that, described stair-stepping material dispatch tube is set to two groups, and the position of two groups of stair-stepping material dispatch tube entrance points is not all higher than the position of the described heat exchange portion port of export, and be connected with the port of export of described heat exchange portion by tube connector, between two groups of stair-stepping material dispatch tubes, be reserved with space, the high-temperature gas that described space allows fuel chambers to produce passes through.
4. cement as claimed in claim 1 is prepared rotary kiln, it is characterized in that, the kiln tail end of described cylindrical shell is provided with adpting flange, and described reductor is connected with described cylindrical shell by described adpting flange.
5. cement as claimed in claim 1 is prepared rotary kiln, it is characterized in that, described fixture comprises the wheel band being set on described cylindrical shell and is supported on described support roller of taking turns with both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410368019.1A CN104121771B (en) | 2014-07-30 | 2014-07-30 | Rotary kiln prepared by a kind of cement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410368019.1A CN104121771B (en) | 2014-07-30 | 2014-07-30 | Rotary kiln prepared by a kind of cement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104121771A true CN104121771A (en) | 2014-10-29 |
| CN104121771B CN104121771B (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410368019.1A Active CN104121771B (en) | 2014-07-30 | 2014-07-30 | Rotary kiln prepared by a kind of cement |
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| Country | Link |
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| CN (1) | CN104121771B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833203A (en) * | 2015-04-17 | 2015-08-12 | 石家庄新华能源环保科技股份有限公司 | Heat-accumulating-type cement calcination device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11193987A (en) * | 1997-12-27 | 1999-07-21 | Ishikawajima Harima Heavy Ind Co Ltd | Rotary kiln |
| JP2005345012A (en) * | 2004-06-03 | 2005-12-15 | Tomohiro Nomura | Rotary kiln type heat treatment device |
| CN201666725U (en) * | 2010-02-03 | 2010-12-08 | 吉林省建筑材料工业设计研究院 | Internal helical tube type rotary kiln |
| CN101985557A (en) * | 2010-08-19 | 2011-03-16 | 西峡龙成特种材料有限公司 | Decomposition device of single coal-material burner |
| CN201811571U (en) * | 2010-09-07 | 2011-04-27 | 西峡龙成特种材料有限公司 | Heating device of rotary kiln |
| CN202284896U (en) * | 2011-11-01 | 2012-06-27 | 李德旗 | Externally-heating rotary furnace of three-channel retracing continuous production |
| CN203964633U (en) * | 2014-07-30 | 2014-11-26 | 梁均全 | A kind of cement is prepared rotary kiln |
-
2014
- 2014-07-30 CN CN201410368019.1A patent/CN104121771B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11193987A (en) * | 1997-12-27 | 1999-07-21 | Ishikawajima Harima Heavy Ind Co Ltd | Rotary kiln |
| JP2005345012A (en) * | 2004-06-03 | 2005-12-15 | Tomohiro Nomura | Rotary kiln type heat treatment device |
| CN201666725U (en) * | 2010-02-03 | 2010-12-08 | 吉林省建筑材料工业设计研究院 | Internal helical tube type rotary kiln |
| CN101985557A (en) * | 2010-08-19 | 2011-03-16 | 西峡龙成特种材料有限公司 | Decomposition device of single coal-material burner |
| CN201811571U (en) * | 2010-09-07 | 2011-04-27 | 西峡龙成特种材料有限公司 | Heating device of rotary kiln |
| CN202284896U (en) * | 2011-11-01 | 2012-06-27 | 李德旗 | Externally-heating rotary furnace of three-channel retracing continuous production |
| CN203964633U (en) * | 2014-07-30 | 2014-11-26 | 梁均全 | A kind of cement is prepared rotary kiln |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833203A (en) * | 2015-04-17 | 2015-08-12 | 石家庄新华能源环保科技股份有限公司 | Heat-accumulating-type cement calcination device |
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| CN104121771B (en) | 2016-01-20 |
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Address after: 546200 the Guangxi Zhuang Autonomous Region County, Jinxiu County Xia Garden District Seismological Bureau Patentee after: Liang Junquan Address before: 532200 the Guangxi Zhuang Autonomous Region Chongzuo Jiangzhou District No. 29 Jianshe Road Patentee before: Liang Junquan |
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| TR01 | Transfer of patent right |
Effective date of registration: 20190505 Address after: 243000 Jincheng Village, Shiyang Town, Ma'anshan City and County, Anhui Province Patentee after: Anhui Panjing Cement Co., Ltd. Address before: 546200 Seismological Bureau of Xiayuan District, Jinxiu County, Laibin City, Guangxi Zhuang Autonomous Region Patentee before: Liang Junquan |
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| TR01 | Transfer of patent right |