CN102115081B - Burning furnace used for producing silicon dioxide by gas phase method - Google Patents
Burning furnace used for producing silicon dioxide by gas phase method Download PDFInfo
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- CN102115081B CN102115081B CN 201110056716 CN201110056716A CN102115081B CN 102115081 B CN102115081 B CN 102115081B CN 201110056716 CN201110056716 CN 201110056716 CN 201110056716 A CN201110056716 A CN 201110056716A CN 102115081 B CN102115081 B CN 102115081B
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- roasting kiln
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Abstract
The invention provides a burning furnace used for producing silicon dioxide by gas phase method. The burning furnace adopts a closed structure and comprises a furnace body, a furnace cover, and a burner which are integrally connected in sequence, wherein the furnace body is jacketed, a water inlet is arranged at the front end of the furnace body, and a water outlet is arranged at the rear end of the furnace body. By adopts the closed structure and the water-cooling technical, the problems in the prior art are completely solved. The whole burning furnace works stably, is not affected by the environmental factors, and prevents the materials from adhering on the wall of the furnace body. Besides, the burning furnace achieves the uniform cooling effect, increases the cooling speed and prolongs the service life of the equipment. Furthermore, the burning furnace not only greatly increases the stability and the universality of the product quality but also increases the yield.
Description
Technical field
The present invention relates to chemical production device, particularly a kind of roasting kiln for the production of fumed silica.
Background technology
Producing fumed silica at present generally all is to adopt open port firing stove and air-cooled technology.The shortcoming of open port firing stove is: affected by environment big, site environment is abominable, and raw material can be brought other impurity in the body of heater into when hydrolysis, thereby produces anticaustic, has influenced the quality of product to a great extent.System for fumed silica is an exothermic process, if the heat that produces in process of production can't be taken away rapidly, just burns out equipment easily.And the shortcoming of air-cooled technology exactly: inhomogeneous cooling is even, speed of cooling is slow, and equipment is burnt out easily.
Summary of the invention
Purpose of the present invention in order to solve the problems referred to above that prior art exists, provides a kind of roasting kiln for the production of fumed silica exactly.
To achieve these goals, the present invention has adopted following technical scheme: a kind of roasting kiln for the production of fumed silica, and described roasting kiln is enclosed construction, comprises body of heater, bell and burner that order is connected; Body of heater is jacket type structure, and front end is provided with water-in, and the rear end is provided with water outlet.
Described bell is that cone shape is jacket structured, its small-caliber end and burner are tightly connected, and the heavy caliber end is connected with furnace sealing, and the chuck outer wall is connected with the inlet of cold air pipe, the chuck inwall is vesicular structure, and chuck forms the buffering inner chamber that freezing air enters roasting kiln.
Described bell is provided with the flame monitoring mouth.
Tolerance clearance≤0.5mm between described burner and the bell.
Described burner front portion is provided with jacket structured, and the chuck outer wall is connected with cold nitrogen inlet pipe, and the chuck inwall is vesicular structure, and chuck forms the buffering inner chamber that cold nitrogen enters burner.
Roasting kiln of the present invention adopts closed and Water Cooling Technology, finishes to have overcome the above-mentioned problem that prior art exists.Whole production device smooth operation is not subjected to such environmental effects, can not produce the material wall built-up.And cooling is even, speed of cooling is fast, and service life of equipment is long.Not only improve stability, the ubiquity of quality product greatly, improved production capacity simultaneously.
Description of drawings
Fig. 1 is the structural representation of the present invention for the production of the roasting kiln of fumed silica.
Embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, the roasting kiln for the production of fumed silica of the present invention is enclosed construction, comprises body of heater 1, bell 2 and burner 3 that order is connected.
Body of heater 1 among the present invention is jacket type structure, and front end is provided with water-in 11, and the rear end is provided with water outlet 12 and porthole 13 and pressure tap 14.
Bell 2 among the present invention is that cone shape is jacket structured, its small-caliber end and burner 3 are tightly connected, and heavy caliber end and body of heater 1 are tightly connected, and the chuck outer wall is connected with inlet of cold air pipe 21, the chuck inwall is vesicular structure, and chuck forms the buffering inner chamber that freezing air enters roasting kiln.Bell 2 is provided with flame monitoring mouth 22.
Burner 3 among the present invention and the tolerance clearance≤0.5mm between the bell 2.To guarantee that flame 4 burns in bell 2, be provided with jacket structuredly in burner 3 front portions, the chuck outer wall is connected with cold nitrogen inlet pipe 31, and the chuck inwall is vesicular structure, and chuck forms the buffering inner chamber that cold nitrogen enters burner.Be provided with silane import 32 and hydrogen inlet 33 at burner 3 rear portions.
The principle of work of the roasting kiln for the production of fumed silica of the present invention is, silane, hydrogen fully mix the back and carry out combustion hydrolytic at the burner mouth in burner, because of flame an airtight space internal combustion, therefore be covered with a flame monitoring mouth at roasting kiln, be used for the monitoring flame combustion state.Roasting kiln is made the chuck form, comes cooled furnace wall by temperature adjustment water.Simultaneously in order to reach better cooling performance, feed cold nitrogen and cold air at burner muzzle and burning bell respectively, form the twice air curtain, the heat that produces in the time of not only can cooling combustion can prevent from that material from sticking to simultaneously to produce wall built-up on the furnace walls.
Claims (4)
1. roasting kiln for the production of fumed silica, it is characterized in that: described roasting kiln is enclosed construction, comprises body of heater, bell and burner that order is connected; Body of heater is jacket type structure, and front end is provided with water-in, and the rear end is provided with water outlet;
Described bell is that cone shape is jacket structured, its small-caliber end and burner are tightly connected, and the heavy caliber end is connected with furnace sealing, and the chuck outer wall is connected with the inlet of cold air pipe, the chuck inwall is vesicular structure, and chuck forms the buffering inner chamber that freezing air enters roasting kiln.
2. the roasting kiln for the production of fumed silica as claimed in claim 1, it is characterized in that: described bell is provided with the flame monitoring mouth.
3. the roasting kiln for the production of fumed silica as claimed in claim 1 is characterized in that: the tolerance clearance≤0.5mm between described burner and the bell.
4. the roasting kiln for the production of fumed silica as claimed in claim 1, it is characterized in that: described burner front portion is provided with jacket structured, the chuck outer wall is connected with cold nitrogen inlet pipe, and the chuck inwall is vesicular structure, and chuck forms the buffering inner chamber that cold nitrogen enters burner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110056716 CN102115081B (en) | 2011-03-10 | 2011-03-10 | Burning furnace used for producing silicon dioxide by gas phase method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110056716 CN102115081B (en) | 2011-03-10 | 2011-03-10 | Burning furnace used for producing silicon dioxide by gas phase method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102115081A CN102115081A (en) | 2011-07-06 |
| CN102115081B true CN102115081B (en) | 2013-09-25 |
Family
ID=44214024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110056716 Expired - Fee Related CN102115081B (en) | 2011-03-10 | 2011-03-10 | Burning furnace used for producing silicon dioxide by gas phase method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102115081B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1572725A (en) * | 2003-06-10 | 2005-02-02 | 德古萨股份公司 | Fumed silica produced by flame hydrolysis, process for its production and its use |
| US20050129603A1 (en) * | 2002-03-18 | 2005-06-16 | Wacker-Chemie Gmbh | High-purity silica powder, and process and apparatus for producing it |
| CN101723384A (en) * | 2009-12-25 | 2010-06-09 | 上海竟茨环保科技有限公司 | Synthesis method and device for gas phase white carbon black |
| CN202030533U (en) * | 2011-03-10 | 2011-11-09 | 上海竟茨环保科技有限公司 | Combustion furnace for producing silicon dioxide by utilizing vapor phase process |
-
2011
- 2011-03-10 CN CN 201110056716 patent/CN102115081B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050129603A1 (en) * | 2002-03-18 | 2005-06-16 | Wacker-Chemie Gmbh | High-purity silica powder, and process and apparatus for producing it |
| CN1572725A (en) * | 2003-06-10 | 2005-02-02 | 德古萨股份公司 | Fumed silica produced by flame hydrolysis, process for its production and its use |
| CN101723384A (en) * | 2009-12-25 | 2010-06-09 | 上海竟茨环保科技有限公司 | Synthesis method and device for gas phase white carbon black |
| CN202030533U (en) * | 2011-03-10 | 2011-11-09 | 上海竟茨环保科技有限公司 | Combustion furnace for producing silicon dioxide by utilizing vapor phase process |
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| Publication number | Publication date |
|---|---|
| CN102115081A (en) | 2011-07-06 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 Termination date: 20160310 |