CN201132820Y - Double- hearth lime shaft kiln - Google Patents
Double- hearth lime shaft kiln Download PDFInfo
- Publication number
- CN201132820Y CN201132820Y CNU2007201382456U CN200720138245U CN201132820Y CN 201132820 Y CN201132820 Y CN 201132820Y CN U2007201382456 U CNU2007201382456 U CN U2007201382456U CN 200720138245 U CN200720138245 U CN 200720138245U CN 201132820 Y CN201132820 Y CN 201132820Y
- Authority
- CN
- China
- Prior art keywords
- kiln
- passage
- connecting passage
- dust
- vertical 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.)
- Expired - Fee Related
Links
- 235000008733 Citrus aurantifolia Nutrition 0.000 title claims abstract description 21
- 235000011941 Tilia x europaea Nutrition 0.000 title claims abstract description 21
- 239000004571 lime Substances 0.000 title claims abstract description 21
- 210000000038 chest Anatomy 0.000 claims description 39
- 238000007599 discharging Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 abstract description 19
- 238000001354 calcination Methods 0.000 abstract description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 7
- 239000007789 gas Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 238000013517 stratification Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000013590 bulk material Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2/00—Lime, magnesia or dolomite
- C04B2/10—Preheating, burning calcining or cooling
- C04B2/12—Preheating, burning calcining or cooling in shaft or vertical furnaces
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model relates to a vertical kiln of calcining massive balk cargo, in particular to a double chamber lime vertical kiln, which resolves the problems of circulated airflow hindrance, worse lime quality and reduced output much easily resulted from cumulate dust due to unreasonable structure of the connecting passage of the existing calcining vertical kiln. The double chamber lime vertical kiln comprises two vertical kiln chambers which are communicated via a connecting passage. A burner thrust jet is installed inside the kiln chamber. The bottom of the connecting passage is at least provided with a dust collection passage which can be opened and closed. The dust collection passage is cone-shaped. The lower end of the dust collection passage is connected with a dust discharge pipeline which is provided with an open and close valve. In the calcination process, the generated dust is periodically discharged via the dust collection passage, thereby guaranteeing no cumulate dust and blockage inside the connecting passage, guaranteeing the product quality and the output influenced by the connecting passage blockage of the double chamber lime vertical kiln. Therefore, the operation of the whole device has continuity and reliability; the production efficiency is greatly improved; otherwise, the double chamber lime vertical kiln has simple structure and lower improvement cost, and has a certain popularization value and useful value.
Description
Technical field
The utility model relates to a kind of shaft furnace of calcining lumpy bulk material, is specially a kind of pair of thorax lime shaft kiln.
Background technology
Known, existing calcining vertical kiln is included in two vertical furnace thoraxes that the upper and lower part is provided with the charging and discharging mouth respectively and is arranged side by side, and two vertical furnace thoraxes are communicated with by the connecting passage that is positioned at kiln thorax middle and lower part.Principle and structure from two thorax lime shaft kilns, no matter kiln thorax cross section is square, circular, semicircle or other shape, all has connecting passage, connecting passage is the essential structure that realizes two thorax lime shaft kiln principles and advantage, but connecting passage in actual production all in various degree have a following shortcoming:
The effect of connecting passage is that the gas that the lime calcining kiln thorax is produced in calcination process flows to non-calcining kiln thorax by this passage, and carry a large amount of dust in the flowing gas, because the change of gas velocity in passage, the part dust is landing in connecting passage, accumulation just, and this part dust carries out being difficult in the process eliminate voluntarily in production.Connecting passage is longer, and this phenomenon can heal seriously, and especially performance is more obvious on round kiln.Along with the prolongation of time, the powder ash is piled up can be more and more, and its result diminishes the space of connecting passage gradually, the airflow obstruction that passes through, the lime quality variation, output reduces, the production of two thorax kilns can't normally be carried out, can only stop production and by the manual handling dust stratification.But connecting passage belongs to the high-temperature zone, and general temperature has certain danger and difficulty when old friend worker clears up between 800-1200 ℃.
Summary of the invention
The utility model is in order to solve the connecting passage unreasonable structure of existing calcining vertical kiln, after piling up, very easily cause in dust airflow obstruction, lime quality variation, the output passed through to reduce, even the problem that can't normally move of entire equipment, a kind of pair of thorax lime shaft kiln is provided, can effectively eliminates the connecting passage blockage problem.
The utility model is to adopt following technical scheme to realize: two thorax lime shaft kilns, comprise upper and lower two vertical furnace thoraxes that are respectively equipped with the charging and discharging mouth and are arranged side by side, two vertical furnace thoraxes are communicated with by the connecting passage that is positioned at kiln thorax middle and lower part, evenly be provided with combustor nozzle in the kiln thorax, the connecting passage bottom is provided with the grey passage of collection to be opened/closed that one or more are communicated with it at least.The grey passage of described collection can be determined according to connecting passage bottom size and actual dust stratification discharge capacity, and in order to guarantee the ordinary production in limestone kiln, only open in ash discharge just collect grey passage.
The utility model is by setting up the grey passage of collection to be opened/closed in the connecting passage bottom, make the dust that produces in the calcination process regularly discharge by the grey passage of collection, thereby do not stockpile ash in the assurance connecting passage, do not stop up, guarantee that two thorax lime shaft kilns can not influence quality product and output because connecting passage stops up, make the operation of entire equipment have continuity and reliability, improved production efficiency greatly, and simple in structure, easy and simple to handle, improvement cost is lower, has certain popularization value and use value.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Among the figure: 1,2-kiln thorax 3-connecting passage 4-combustor nozzle 5-collection ash passage 6-removing ash pipeline 7-open and close valve
Embodiment
Two thorax lime shaft kilns, comprise, under be respectively equipped with into, discharge port and two vertical furnace thoraxes 1 that are arranged side by side, 2, two vertical furnace thoraxes are communicated with by the connecting passage 3 that is positioned at kiln thorax middle and lower part, evenly be provided with combustor nozzle 4 in the kiln thorax, connecting passage 3 bottoms are provided with a grey passage 5 of the collection to be opened/closed that is communicated with it at least, its section can be circle, oval, rectangle, variable cross-section or other arbitrary shape, because connecting passage place temperature is higher, so collecting grey passage generally makes with refractory materials, can be pre-formed in advance, also can be on-the-spot with refractory material casting or ramming process; Collect grey passage 5 and be cone, can collect a certain amount of dust, before draining, can make full use of its waste heat; Collect grey passage 5 lower ends and be connected with removing ash pipeline 6, open and close valve 7 is housed on the removing ash pipeline 6, under the situation that does not influence the lime shaft kiln ordinary production, regularly open open and close valve, by removing ash pipeline dust is drawn off, in addition, cooling structure, anti expanding and shrinking structure, vibrator, gas purging structure etc. also can be set on the removing ash pipeline.
During production, lumpy material is sent into the kiln thorax by the opening for feed at each kiln thorax top, discharge from kiln thorax discharge port through the resultant after the calcining, the fuel that calcining materials is used is to be supplied with by combustor nozzle, combustion air feeds from the kiln top, the mixed firing in the kiln thorax of fuel and combustion air realizes the calcining to material.In kiln thorax 1 calcination process, the flue gas that calcining produces carries out preheating, two periodically alternations of kiln thorax to the lumpy material in the kiln thorax 2 in connecting passage enters kiln thorax 2.Dust can slowly be deposited in the collection ash passage of connecting passage below in the said process, by regularly opening open and close valve, makes dust be discharged by removing ash pipeline then.
Claims (3)
1, a kind of pair of thorax lime shaft kiln, comprise upper and lower two the vertical furnace thoraxes (1,2) that are respectively equipped with the charging and discharging mouth and are arranged side by side, two vertical furnace thoraxes are communicated with by the connecting passage that is positioned at kiln thorax middle and lower part (3), evenly be provided with combustor nozzle (4) in the kiln thorax, it is characterized in that connecting passage (3) bottom is provided with a grey passage of collection to be opened/closed (5) that is communicated with it at least.
2, according to claim 1 pair of thorax lime shaft kiln is characterized in that the grey passage of described collection (5) is cone.
3, according to claim 1 and 2 pair of thorax lime shaft kiln is characterized in that collecting grey passage (5) lower end and is connected with removing ash pipeline (6), and open and close valve (7) is housed on the removing ash pipeline (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201382456U CN201132820Y (en) | 2007-12-11 | 2007-12-11 | Double- hearth lime shaft kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201382456U CN201132820Y (en) | 2007-12-11 | 2007-12-11 | Double- hearth lime shaft kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201132820Y true CN201132820Y (en) | 2008-10-15 |
Family
ID=40061095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201382456U Expired - Fee Related CN201132820Y (en) | 2007-12-11 | 2007-12-11 | Double- hearth lime shaft kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201132820Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018532971A (en) * | 2015-10-06 | 2018-11-08 | エス．ア．ロイスト ルシェルシュ エ デヴロップマン | Method of calcining mineral rock and furnace used in regenerative co-current vertical shaft furnace |
| CN109250928A (en) * | 2018-09-28 | 2019-01-22 | 上海宝冶冶金工程有限公司 | Convenient for the double-hearth lime kiln of ash discharge |
| CN111233351A (en) * | 2020-03-10 | 2020-06-05 | 中冶京诚工程技术有限公司 | Double-hearth kiln and calcination method |
| CN111559877A (en) * | 2020-05-27 | 2020-08-21 | 山西中齐锐能高温材料有限公司 | Novel ultra-high temperature shaft kiln |
-
2007
- 2007-12-11 CN CNU2007201382456U patent/CN201132820Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018532971A (en) * | 2015-10-06 | 2018-11-08 | エス．ア．ロイスト ルシェルシュ エ デヴロップマン | Method of calcining mineral rock and furnace used in regenerative co-current vertical shaft furnace |
| CN109250928A (en) * | 2018-09-28 | 2019-01-22 | 上海宝冶冶金工程有限公司 | Convenient for the double-hearth lime kiln of ash discharge |
| CN111233351A (en) * | 2020-03-10 | 2020-06-05 | 中冶京诚工程技术有限公司 | Double-hearth kiln and calcination method |
| CN111233351B (en) * | 2020-03-10 | 2023-12-01 | 中冶京诚工程技术有限公司 | Double-hearth kiln and calcination method |
| CN111559877A (en) * | 2020-05-27 | 2020-08-21 | 山西中齐锐能高温材料有限公司 | Novel ultra-high temperature shaft kiln |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING GOODGATHER ENERGY SCIENCE AND TECHNOLOGY C Free format text: FORMER OWNER: GAO JINGTAO Effective date: 20140528 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 030009 TAIYUAN, SHAANXI PROVINCE TO: 100086 HAIDIAN, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140528 Address after: 100086 No. 1, No. 48, South Main Street, Beijing, Haidian District, Zhongguancun, C4027 Patentee after: Beijing Jiayong Huitong Energy Science & Technology Co., Ltd. Address before: 030009, Yu Wang building, 148 Xinjian North Road, Shanxi, Taiyuan, B604 Patentee before: Gao Jingtao |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081015 Termination date: 20151211 |
|
| EXPY | Termination of patent right or utility model |