CN1367365A - Rotary kiln with resistor furnace for heating and calcining kaolin - Google Patents
Rotary kiln with resistor furnace for heating and calcining kaolin Download PDFInfo
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- CN1367365A CN1367365A CN 01128612 CN01128612A CN1367365A CN 1367365 A CN1367365 A CN 1367365A CN 01128612 CN01128612 CN 01128612 CN 01128612 A CN01128612 A CN 01128612A CN 1367365 A CN1367365 A CN 1367365A
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- rotary kiln
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Abstract
The rotary kiln for heating and roasting kaoline by using resistance furnace includes kiln body, support wheels, feeding end, discharging end, feeding mechanism and driving mechanism formed from motor, reduction box, small gears and large gears. The described feeding end and discharging end are movably connected with two ends of roasting rotary kiln, its feeding mechanism is connected with feeding end, and it is characterized the resistance furnace is placed in the lower portion of kiln body, it also includes smoke-exhaust pipe, smoke dust recovering column and smoke-discharging system formed from chimney, one end of smoke exhaust pipe is fixedly connected with feeding end, and its another end is connected with smoke-dust recovering column, and between said recovering column and chimney a flue gate is connected.
Description
Technical field
The present invention relates to a kind of calcined kaolin rotary kiln, particularly rotary kiln with resistor furnace for heating and calcining kaolin.
Background technology
Restricting China's production high-quality superfine calcined kaolin for a long time (is granularity≤2 μ m, content 〉=90%, whiteness 〉=90%) a great difficult problem is that existing kaolin calcined equipment and technology do not pass a test, and is difficult to satisfy the technological requirement of producing the high-quality superfine calcined kaolin.Though country has also dropped into great amount of manpower and material resources, has carried out years of researches and exploitation for this reason, never obtain satisfied effect.In order to produce high-quality superfine calcined kaolin, have to from external introduction calcined kaolin rotary kiln device and calcining technology.The calcined kaolin rotary kiln of this external introduction though can produce high-quality superfine calcined kaolin, proves through production practices, and this calcined kaolin rotary kiln from external introduction not only costs an arm and a leg, but also has certain weak point.Main has: 1, this calcined kaolin rotary kiln is to be that thermal source carries out indirect with oil or coal gas, and this has just caused the complicated of thermal technology's control, has increased manufacturing cost.Simultaneously, because the flue gas that burning produces not only can be taken away a large amount of heat energy, reduce heat utilization efficiency, but also bring the smoke contamination problem to environment.2, this calcined kaolin rotary kiln, what adopt is the calcining technology of interior material of kiln and airstream in kiln following current campaign (i.e. motion in the same way), this just might make to be mixed in to be deposited to when particulate dust that the end calcining in the air-flow finishes is blown near discharge end by air-flow near feed end and calcine in the material of finishing, thereby has polluted product.In order to produce high-quality product, just must increase calcination time like this, thereby reduce the production capacity of equipment.Just there are the problems referred to above in this kaolin calcined rotary kiln in actual production, as the kaolin calcined rotary kiln of domestic certain company from external import, its designed capacity is 10,000 tons of annual output calcined kaolins, and actual production capacity has only 0.6 ten thousand tons/year.Domestic another company also from external import two kaolin calcined rotary kilns, existing so far 3 years, also the end can steady production.This in addition kaolin calcined rotary kiln is because its material and air-flow are following current campaign in the same way, and the physics latent heat that they are taken away does not obtain utilizing yet, and has correspondingly reduced the thermal efficiency yet.
Summary of the invention
The purpose of this invention is to provide a kind of rotary kiln with resistor furnace for heating and calcining kaolin,, produce the high-quality superfine calcined kaolin to solve the weak point that existing calcined kaolin rotary kiln exists.
In order to realize the foregoing invention purpose, the technical solution used in the present invention is: rotary kiln with resistor furnace for heating and calcining kaolin comprises calcination rotary kiln kiln body, support roller, feed end, discharge end, charging mechanism and the transmission mechanism that is made of motor, reduction box, pinion and gear wheel; Support roller is held calcination rotary kiln kiln body by being fixed on entrusting of calcination rotary kiln kiln body two ends; Gear wheel in the transmission mechanism is contained in an end of calcination rotary kiln kiln body, and its motor rotates by the reduction box driving pinion, and pinion rotates calcination rotary kiln kiln body by gear wheel; Described feed end is lived with the two ends of calcination rotary kiln kiln body with discharge end and is connected, and charging mechanism and feed end link, and it is characterized in that being provided with resistance furnace in the bottom of calcination rotary kiln kiln body.
The further improved technical scheme that the present invention adopts is: it also comprises the smoke evacuation system that is made of smoke exhaust pipe, flue dust recovery tower, chimney, smoke exhaust pipe one end is fixedlyed connected with feed end, the other end and flue dust recovery tower link, and are connected with flue valve between flue dust recovery tower and the chimney.
Because the present invention adopts electricity for thermal source, carries out indirect, makes the thermal technology control simplification, has reduced manufacturing cost, owing to there is not the fume emission that burning produces, has promptly improved heat utilization efficiency simultaneously, has protected environment again.In addition owing to the present invention designs smoke evacuation system in feed end one side, make that material and air-flow in the calcination rotary kiln kiln body are reverse movement, having solved feed end that existing calcined kaolin rotary kiln exists effectively is mixed in and is deposited to the problem of calcining polluted product in the material of finishing when particulate dust that the end calcining in the air-flow finishes is blown near discharge end by air-flow, saved calcination time, physics latent heat in material and the air-flow is fully utilized, has improved the thermal efficiency.
With regard to the calcining of Coaseries kaolin, material in kiln under 900-1000 ℃ the temperature, the calcination process that main is through deshydroxy and decarburization.In order to guarantee the whiteness of product, must guarantee that the impurity element iron in the material does not generate or the least possible generation di-iron trioxide, this just requires kiln atmosphere to be controlled under the weakly reducing atmosphere to calcine.
For this reason, the further improved technical scheme of the present invention's employing is: adopt axial seal ring and radial seal ring to seal between feed end and discharge end and the calcination rotary kiln kiln body.
The present invention can control calcination atmosphere in the calcination rotary kiln kiln body flexibly and comfortably by flue valve in addition.
Owing to adopted technical scheme as above, the present invention compares with existing calcined kaolin rotary kiln, it is simple to have technological operation, running is reliable continuously, and easy to maintenance, the calcination product quality reaches the advanced level of similar products at home and abroad, constant product quality, energy consumption is low, and production process is pollution-free, the advantage that the device fabrication price is low
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the zoomed-in view at the I place of Fig. 1;
Fig. 3 is the zoomed-in view at the II place of Fig. 1;
Fig. 4 is the A-A cutaway view of Fig. 1.
The specific embodiment
Rotary kiln with resistor furnace for heating and calcining kaolin as depicted in figs. 1 and 2 comprises calcination rotary kiln kiln body 1, support roller 2, feed end 3, discharge end 4, charging mechanism 5 and the transmission mechanism and the resistance furnace 19 that are made of motor 6, reduction box 7, pinion 8 and gear wheel 9; Support roller 2 10 is held calcination rotary kiln kiln body 1 by being fixed on entrusting of calcination rotary kiln kiln body 1 two ends; Gear wheel 9 in the transmission mechanism is contained in an end of calcination rotary kiln kiln body 1, and its motor 6 rotates by reduction box 7 driving pinions 8, and pinion 8 rotates calcination rotary kiln kiln body 1 by gear wheel 9; Feed end 3 is lived with the two ends of calcination rotary kiln kiln body 1 with discharge end 4 and is connected, and charging mechanism 5 links with feed end 3, and resistance furnace 19 is arranged on the bottom of calcination rotary kiln kiln body 1.
In order to make material and air-flow reverse movement in the kiln, present embodiment also comprises the smoke evacuation system that is made of smoke exhaust pipe 11, flue dust recovery tower 12, chimney 13, smoke exhaust pipe 11 1 ends are fixedlyed connected with feed end 3, the other end and flue dust recovery tower 12 link, and are connected with flue valve 14 between flue dust recovery tower 12 and the chimney 13.
As Fig. 3-shown in Figure 4, adopt axial seal ring 15,16 and radial seal ring 17,18 to seal between its feed end 3 and discharge end 4 and the calcination rotary kiln kiln body 1.
Claims (3)
1, rotary kiln with resistor furnace for heating and calcining kaolin comprises calcination rotary kiln kiln body (1), support roller (2), feed end (3), discharge end (4), charging mechanism (5) and the transmission mechanism that is made of motor (6), reduction box (7), pinion (8) and gear wheel (9); Support roller (2) is held calcination rotary kiln kiln body (1) by entrust (10) that are fixed on calcination rotary kiln kiln body (1) two ends; Gear wheel in the transmission mechanism (9) is contained in an end of calcination rotary kiln kiln body (1), and its motor (6) rotates by reduction box (7) driving pinion (8), and pinion (8) rotates calcination rotary kiln kiln body (1) by gear wheel (9); Described feed end (3) is lived with the two ends of calcination rotary kiln kiln body (1) with discharge end (4) and is connected, and charging mechanism (5) links with feed end (3), it is characterized in that being provided with resistance furnace (19) in the bottom of calcination rotary kiln kiln body (1).
2, rotary kiln with resistor furnace for heating and calcining kaolin according to claim 1, it is characterized in that also comprising the smoke evacuation system that constitutes by smoke exhaust pipe (11), flue dust recovery tower (12), chimney (13), smoke exhaust pipe (11) one ends are fixedlyed connected with feed end (3), the other end and flue dust recovery tower (12) link, and are connected with flue valve (14) between flue dust recovery tower (12) and the chimney (13).
3, rotary kiln with resistor furnace for heating and calcining kaolin according to claim 1 and 2 is characterized in that adopting between feed end (3) and discharge end (4) and the calcination rotary kiln kiln body (1) axial seal ring (15,16) and radial seal ring (17,18) to seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01128612 CN1367365A (en) | 2001-09-19 | 2001-09-19 | Rotary kiln with resistor furnace for heating and calcining kaolin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01128612 CN1367365A (en) | 2001-09-19 | 2001-09-19 | Rotary kiln with resistor furnace for heating and calcining kaolin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1367365A true CN1367365A (en) | 2002-09-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01128612 Pending CN1367365A (en) | 2001-09-19 | 2001-09-19 | Rotary kiln with resistor furnace for heating and calcining kaolin |
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| CN (1) | CN1367365A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100366535C (en) * | 2002-12-31 | 2008-02-06 | 北京矿冶研究总院 | Method for calcining kaolin by rotary calcining kiln and rotary calcining kiln thereof |
| CN101726193B (en) * | 2010-01-22 | 2012-10-31 | 无锡市东方环境工程设计研究所有限公司 | Synchronizer for bidirectional-movement smoke exhaust pipe of electric furnace |
| CN101749963B (en) * | 2010-01-22 | 2013-01-30 | 无锡市东方环境工程设计研究所有限公司 | Electric furnace bidirectional movement flue synchronizing device |
| CN103353220A (en) * | 2013-04-28 | 2013-10-16 | 眉山市津鑫机电有限公司 | Converter |
| CN105019016A (en) * | 2015-08-06 | 2015-11-04 | 河南鸿昌电子有限公司 | Crystal pulling furnace with turnover device |
| CN106500504A (en) * | 2016-11-04 | 2017-03-15 | 江苏鹏飞集团股份有限公司 | A kind of dry method cement rotary kiln |
| CN107421321A (en) * | 2017-08-25 | 2017-12-01 | 江苏凤谷节能科技有限公司 | Lithium battery powder sintering external-heating rotary kiln |
| CN110937781A (en) * | 2019-08-16 | 2020-03-31 | 常熟市建苑电子元件有限公司 | Semi-automatic sintering furnace for radio frequency single-core glass insulator |
-
2001
- 2001-09-19 CN CN 01128612 patent/CN1367365A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100366535C (en) * | 2002-12-31 | 2008-02-06 | 北京矿冶研究总院 | Method for calcining kaolin by rotary calcining kiln and rotary calcining kiln thereof |
| CN101726193B (en) * | 2010-01-22 | 2012-10-31 | 无锡市东方环境工程设计研究所有限公司 | Synchronizer for bidirectional-movement smoke exhaust pipe of electric furnace |
| CN101749963B (en) * | 2010-01-22 | 2013-01-30 | 无锡市东方环境工程设计研究所有限公司 | Electric furnace bidirectional movement flue synchronizing device |
| CN103353220A (en) * | 2013-04-28 | 2013-10-16 | 眉山市津鑫机电有限公司 | Converter |
| CN105019016A (en) * | 2015-08-06 | 2015-11-04 | 河南鸿昌电子有限公司 | Crystal pulling furnace with turnover device |
| CN106500504A (en) * | 2016-11-04 | 2017-03-15 | 江苏鹏飞集团股份有限公司 | A kind of dry method cement rotary kiln |
| CN107421321A (en) * | 2017-08-25 | 2017-12-01 | 江苏凤谷节能科技有限公司 | Lithium battery powder sintering external-heating rotary kiln |
| CN110937781A (en) * | 2019-08-16 | 2020-03-31 | 常熟市建苑电子元件有限公司 | Semi-automatic sintering furnace for radio frequency single-core glass insulator |
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