CN202865156U - Carbon black high temperature cracking furnace with gas inlet at top - Google Patents
Carbon black high temperature cracking furnace with gas inlet at top Download PDFInfo
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- CN202865156U CN202865156U CN 201220588515 CN201220588515U CN202865156U CN 202865156 U CN202865156 U CN 202865156U CN 201220588515 CN201220588515 CN 201220588515 CN 201220588515 U CN201220588515 U CN 201220588515U CN 202865156 U CN202865156 U CN 202865156U
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- brick
- heat
- carbon black
- gitter
- accumulation
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Abstract
The utility model provides a carbon black high temperature cracking furnace with a gas inlet at the top. The cracking furnace is characterized in that a vertical furnace body comprises a heat exchange and storage section (8), a stored heat cracking section (9) and a support and collection section (10) from top to bottom; a tip cone cavity (7) is arranged in the top of the furnace body and is correspondingly connected with an explosion-proof tube orifice (c), a natural gas inlet and a flush tube orifice (d) outside the furnace body; and a fuel nozzle connected tube orifice (e) is installed at the top of the tip cone cavity (7). The cracking furnace has the advantages and effects that the natural gas inlet is arranged at the top of the furnace body; besides convenience in operation and maintenance, heat storage bricks on the upper part of a heat storage furnace become the high temperature region of the furnace body, and the cracked natural gas entering from the top is at low temperature and is quickly preheated on the section; and such an arrangement mode can enable the temperature variation range to be very narrow during cracking of the natural gas and the heat storage temperature can be appropriately raised, thus the heat storage-cracking conversion cycle is longer, the natural gas treatment capacity is higher and the production capacity is improved to ensure stable product quality and improve the quality.
Description
Technical field
The utility model relates to the device for preparing carbon black with Sweet natural gas, especially the carbon black high-temperature cracking furnace of top air inlet.
Background technology
In the prior art, the Sweet natural gas semi-reinforcing hydrocarbon black be take Sweet natural gas as raw material when the anoxic incomplete combustion, the part Sweet natural gas generates 1400 ℃ to 1100 ℃ cracking.Natural gas pyrolysis has following characteristic: almost do not have scission reaction below 400 ℃, 400 ℃ to 1000 ℃ have scission reaction, but speed is very slow, and along with temperature raises, scission reaction speed is accelerated more than 1000 ℃.
Existing carbon black pyrolyzer fails effectively to guarantee that Sweet natural gas is preheating to sufficiently high temperature and carries out cracking, so that the cracking technology variation range is wider, so that impact makes the quality of carbon black.
Summary of the invention
Goal of the invention of the present utility model is to provide the carbon black high-temperature cracking furnace of a kind of top air inlet, and the realization efficient energy-saving is produced carbon black.
The purpose of this utility model will realize by following technical measures:
Advantage of the present utility model and effect: Imported gas is arranged in the body of heater top, except convenient operating maintenance, make regenerative furnace top gitter brick become the high-temperature zone of body of heater, and the cracking natural gas that the top enters is low temperature, make the Sweet natural gas rapidly pre-warming in this section, temperature variation was very narrow when this decoration form can make natural gas pyrolysis, and can suitably improve regenerator temperature, thereby make accumulation of heat-cracking change-over period longer, it is larger to process amount of natural gas, throughput is improved, to guarantee constant product quality, quality-improving.
Description of drawings
Fig. 1 is the utility model structural representation.
Reference numeral comprises: column foot 1, and end neck 2, lower wall 3, lower interlayer 4, lining 5, upper wall 6, addendum cone chamber 7, heat exchange heat accumulating sections 8, accumulation of heat cracking section 9 supports the section of compiling 10; Carbon black smoke outlet a, accumulation of heat exhanst gas outlet b, explosion-proof mouth of pipe c, Imported gas and wash away mouth of pipe d, fuel nozzle is taken over a mouthful e.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
As shown in Figure 1, vertical furnace comprises heat exchange heat accumulating sections 8, accumulation of heat cracking section 9 and the support section of compiling 10 from top to bottom, addendum cone chamber 7 is arranged in the body of heater upper top, addendum cone chamber 7 corresponding bodies of heater are outer to be connected explosion-proof mouth of pipe c and Imported gas and washes away mouth of pipe d, 7 tops, addendum cone chamber are installed fuel nozzle and are taken over a mouthful e, lining 5 and upper wall 6 are arranged in the heat exchange heat accumulating sections 8, accumulation of heat cracking section 9 interior installation lower walls 3 and lower interlayer 4, the support section of compiling 10 interior installation column foot 1 and end necks 2 support the section of compiling 10 outer connection carbon black smoke outlet a and accumulation of heat exhanst gas outlet b simultaneously.
Column foot 1 inwall is built square heat resisting brick by laying bricks or stones, and neck 2 inwalls in the end are built annular heat resisting brick by laying bricks or stones, and the following interlayer 4 of lower wall 3 inwalls is separated up and down and built gitter brick by laying bricks or stones, and lower interlayer 4 is built special-shaped gitter brick by laying bricks or stones, and lining 5 is built heat resisting brick by laying bricks or stones, and upper wall 6 inwalls are built the accumulation of heat checker brick by laying bricks or stones.
The support section of compiling 10 is accumulation of heat and the respectively staggered floor support of two kinds of heat resisting bricks of heat exchange, and wherein the accumulation of heat of staggered floor partly is the shell and tube layout.
The support section of compiling 10 and heat exchange heat accumulating sections 8 do not affect the circulation area of gitter brick, and the arrangement of checker brick can improve Sweet natural gas and gitter brick contact area.
The inwall of accumulation of heat cracking section 9 has unique axial and circumferential fixed form, and heat exchange heat accumulating sections 8 has unique sealing means with accumulation of heat cracking section 9.
In aforementioned, the square heat resisting brick of column foot 1 inwall is placed on the concrete, and the annular heat resisting brick in the end neck 2 distributes ringwise along body of heater, column foot 1 and the end neck 2 common weight that support top inboard wall of furnace body structure; Gap between the square heat resisting brick of column foot 1 is greater than the opening of the gitter brick of lower wall 3, and the carbon black smoke after the cracking enters carbon black smoke outlet a by this gap.
In aforementioned, the gitter brick of lower wall 3 has male and fomale(M﹠F), guarantees the axial restraint of accumulation of heat part.In the gitter brick of lower wall 3 opening is arranged, every layer of gitter brick has tongue and groove, gitter brick adopts the split level style arranged crosswise, the successively cross arrangement of square heat resisting brick of the checker brick of upper wall 6 and column foot 1, lower wall 3 and gitter brick thereof guarantee that Sweet natural gas carries out cracking from top to bottom, and guarantee the gitter brick axial restraint, be unlikely to cave in; Checker brick and the square heat resisting brick alignment mode of piling up guarantee not block the middle opening of gitter brick; The gitter brick staggered floor of lower wall 3 is arranged, reinforces the accumulation of heat part, and lowermost layer gitter brick edge is placed on the annular heat resisting brick of end neck 2; The checker brick staggered floor of upper wall 6 arranges, fixes with the heat resisting brick of lining 5 all around, and heat resisting brick is placed in around the lower interlayer 4 special-shaped gitter bricks, guarantees the opening cracking that can enter gitter brick by the Sweet natural gas of checker brick.
In aforementioned, the special-shaped gitter brick of lower interlayer 4 arranges and is interrupted some layers, being positioned at following special-shaped gitter brick layer is that the gitter brick of lower wall 3 inwalls is circumferentially fixed, topmost special-shaped gitter brick layer is laid the heat resisting brick of lining 5, with airtight cavity, guarantee that Sweet natural gas must pass through the opening of the gitter brick of lower wall 3; The special-shaped gitter brick of lower interlayer 4 is arranged in around the gitter brick of lower wall 3, is connected with body of heater, and circumferentially fixedly heat exchange heat accumulating sections 8.
First paragraph is that heat exchange heat accumulating sections 8 is finished preheating, this section adopts the accumulation of heat checker brick to build by laying bricks or stones, have that contact area is large, the large characteristic in space, can make Sweet natural gas at short notice temperature bring up to 800 ℃ to 1000 ℃, avoid simultaneously a large amount of cracking black carbons to generate attached collection on checker brick, thereby the yield of carbon black is improved; Second segment is accumulation of heat cracking section 9, adopts special-purpose gitter brick, and this section makes the attached collection of the abundant cracking of high-temperature natural gas, blowback air circulation out-of-date have enough speed make attached collection herein carbon black take away; The 3rd section is the support section of compiling 10, and Main Function is one, two section gitter brick above supporting, and compiles simultaneously heat air diffluence chimney, compiles cracking and blowback air and flows to main bag.
The utility model is when work, in the damp production stage, close Imported gas and wash away mouth of pipe d and outlet, continue burner hearth is heated, the gitter brick and upper wall 6 checker brick that guarantee lower wall 3 can absorb abundant heat, guarantee that Sweet natural gas can reach the temperature that is cracked into carbon black, open Imported gas and wash away mouth of pipe d to clearing up in the body of heater; In the production process stage, close accumulation of heat exhanst gas outlet b, Sweet natural gas enters addendum cone chamber 7, and at this moment, natural gas temperature does not also reach the temperature of required cracking, by heat exchange heat accumulating sections 8, the checker brick of upper wall 6 can increase the contact area with Sweet natural gas, guarantee that the rapid heat exchange of Sweet natural gas heats up, and reach that to be cracked into carbon black temperature required, pass through again accumulation of heat cracking section 9 downwards, carry out cracking by the opening in the gitter brick of lower wall 3; At last, air-flow is taken away carbon black smoke on the gitter brick with certain speed, goes out from carbon black smoke outlet a by the gap in the square support heat resisting brick of column foot 1, finishes whole reaction process.
In the utility model, addendum cone chamber 7, heating flame chamber and Imported gas and wash away mouth of pipe d and be arranged in the body of heater top, two kinds of air flow directions are consistent.Except convenient operating maintenance, make regenerative furnace top gitter brick become the high-temperature zone of body of heater, and the cracking natural gas that the top enters is low temperature, makes the Sweet natural gas rapidly pre-warming in this section, and temperature variation was very narrow when this decoration form can make natural gas pyrolysis, and can suitably improve regenerator temperature, thereby make accumulation of heat-cracking change-over period longer, it is larger to process amount of natural gas, and throughput is improved, to guarantee constant product quality, quality-improving.
In the utility model, fuel natural gas can be with replacements such as other inflammable gas such as blast furnace gases, and raw natural gas can replace with hydrocarbon polymer.
In above embodiment, do not reach the safety of narration, and field engineering, and the employing prior aries such as other necessary technologies that relate to enforcement, enumerate no longer successively detailed description.
Claims (6)
1. the carbon black high-temperature cracking furnace of top air inlet, it is characterized in that, vertical furnace comprises heat exchange heat accumulating sections (8) from top to bottom, accumulation of heat cracking section (9) and the support section of compiling (10), addendum cone chamber (7) is arranged in the body of heater upper top, the corresponding body of heater in addendum cone chamber (7) is outer to be connected the explosion-proof mouth of pipe (c) and Imported gas and washes away the mouth of pipe (d), top, addendum cone chamber (7) is installed fuel nozzle and is taken over mouthful (e), lining (5) and upper wall (6) are arranged in the heat exchange heat accumulating sections (8), lower wall (3) and lower interlayer (4) are installed in the accumulation of heat cracking section (9), column foot (1) and end neck (2) are installed in the support section of compiling (10), are supported simultaneously outer carbon black smoke outlet (a) and the accumulation of heat exhanst gas outlet (b) of connecting of the section of compiling (10).
2. the carbon black high-temperature cracking furnace of top air inlet as claimed in claim 1, it is characterized in that, column foot (1) inwall is built square heat resisting brick by laying bricks or stones, end neck (2) inwall is built annular heat resisting brick by laying bricks or stones, the following interlayer of lower wall (3) inwall (4) is separated up and down and is built gitter brick by laying bricks or stones, lower interlayer (4) is built special-shaped gitter brick by laying bricks or stones, and lining (5) is built heat resisting brick by laying bricks or stones, and upper wall (6) inwall is built the accumulation of heat checker brick by laying bricks or stones.
3. the carbon black high-temperature cracking furnace of top air inlet as claimed in claim 1 is characterized in that, supports the section of compiling (10) and is accumulation of heat and the respectively staggered floor support of two kinds of heat resisting bricks of heat exchange, and wherein the accumulation of heat of staggered floor partly is the shell and tube layout.
4. the carbon black high-temperature cracking furnace of top air inlet as claimed in claim 1, it is characterized in that, the square heat resisting brick of column foot (1) inwall is placed on the concrete, annular heat resisting brick in the end neck (2) distributes ringwise along body of heater, and column foot (1) and end neck (2) support the weight of top inboard wall of furnace body structure jointly; Gap between the square heat resisting brick of column foot (1) is greater than the opening of the gitter brick of lower wall (3).
5. the carbon black high-temperature cracking furnace of top air inlet as claimed in claim 1 is characterized in that, the gitter brick of lower wall (3) has male and fomale(M﹠F), guarantees the axial restraint of accumulation of heat part; In the gitter brick of lower wall (3) opening is arranged, every layer of gitter brick has tongue and groove, and gitter brick adopts split level style arranged crosswise, the successively cross arrangement of square heat resisting brick of the checker brick of upper wall (6) and column foot (1); The gitter brick staggered floor of lower wall (3) is arranged, reinforces the accumulation of heat part, and lowermost layer gitter brick edge is placed on the annular heat resisting brick of end neck (2); The checker brick staggered floor of upper wall (6) arranges, fixes with the heat resisting brick of lining (5) all around, and heat resisting brick is placed in around the special-shaped gitter brick of lower interlayer (4).
6. the carbon black high-temperature cracking furnace of top air inlet as claimed in claim 1, it is characterized in that, the special-shaped gitter brick of lower interlayer (4) arranges and is interrupted some layers, being positioned at following special-shaped gitter brick layer is that the gitter brick of lower wall (3) inwall is circumferentially fixed, and topmost special-shaped gitter brick layer is laid the heat resisting brick of lining (5); The special-shaped gitter brick of lower interlayer (4) is arranged in around the gitter brick of lower wall (3), is connected with body of heater, circumferentially fixedly heat exchange heat accumulating sections (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220588515 CN202865156U (en) | 2012-11-09 | 2012-11-09 | Carbon black high temperature cracking furnace with gas inlet at top |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220588515 CN202865156U (en) | 2012-11-09 | 2012-11-09 | Carbon black high temperature cracking furnace with gas inlet at top |
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| Publication Number | Publication Date |
|---|---|
| CN202865156U true CN202865156U (en) | 2013-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220588515 Withdrawn - After Issue CN202865156U (en) | 2012-11-09 | 2012-11-09 | Carbon black high temperature cracking furnace with gas inlet at top |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202865156U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102898874A (en) * | 2012-11-09 | 2013-01-30 | 新疆雅克拉炭黑有限责任公司 | Three-section type overhead combustion chamber carbon black cracking furnace |
| CN103205140A (en) * | 2013-05-06 | 2013-07-17 | 中橡集团炭黑工业研究设计院 | Cracking furnace for producing thermal decomposition process carbon black |
-
2012
- 2012-11-09 CN CN 201220588515 patent/CN202865156U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102898874A (en) * | 2012-11-09 | 2013-01-30 | 新疆雅克拉炭黑有限责任公司 | Three-section type overhead combustion chamber carbon black cracking furnace |
| CN103205140A (en) * | 2013-05-06 | 2013-07-17 | 中橡集团炭黑工业研究设计院 | Cracking furnace for producing thermal decomposition process carbon black |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130410 Effective date of abandoning: 20140129 |
|
| RGAV | Abandon patent right to avoid regrant |