CN102583383B - Sealing among same-end walls and same-side walls of cover body of silicon carbide smelting furnace - Google Patents
Sealing among same-end walls and same-side walls of cover body of silicon carbide smelting furnace Download PDFInfo
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- CN102583383B CN102583383B CN201210021966.4A CN201210021966A CN102583383B CN 102583383 B CN102583383 B CN 102583383B CN 201210021966 A CN201210021966 A CN 201210021966A CN 102583383 B CN102583383 B CN 102583383B
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- cover body
- sealing
- side wall
- same
- headwall
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Abstract
The invention provides sealing among same-end walls and same-side walls of a cover body of a silicon carbide smelting furnace. For the current condition that the existing silicon carbide smelting technology can not realize sealing of gaps among the cover body and the two adjacent side walls and gaps among the same-end walls and the side walls of the cover body, the invention provides a low-cost, convenient, safe and reliable sealing scheme for the same-side walls of the cover body and the same-end walls of the cover body so as to realize safe extraction of gas in the furnace. The sealing provided by the invention is characterized in that the edge of the cover body (9) is arranged on a furnace charge (12) along a V shape, and a pressing material (11) is used for covering the cover body (9), so that the edge of the cover body (9) is guaranteed to be tightly attached on the side walls and be tightly attached on sealing plates (4) on the end walls (2). The sealing provided by the invention is simple in scheme, and is used for sealing the gaps among the same-side walls of the cover body and the same-end walls and the side walls of the cover body; and the gas extracted from the silicon carbide smelting furnace has the advantages of simplicity and easiness in operation, low cost, safety and reliability.
Description
Technical field
The invention belongs to silicon carbide smelting technical field, relate to a kind of sic smelting furnace furnace gas be drawn out of stove when outer sic smelting furnace cover body with headwall and cover body with the sealing between side wall.
Background technology
Sic smelting furnace is comprised of headwall, side wall, siege.Existing silicon carbide production technology cannot be extracted gas safety in smelting furnace out, to realize the collection and confinement of gases object that negative pressure smelts of holding concurrently.Make a large amount of CO gas form CO after smelting furnace surface combustion on the one hand
2directly enter atmosphere, not only wasted resource but also increased the quantity discharged of carbon, cannot realize the production requirement of energy-saving and emission-reduction, low-carbon environment-friendly, cannot realize on the other hand negative pressure and smelt and reduce product power consumption.
In stove, the key of safe withdrawing gas is the realization sealing between overall situation subenvironment and stove in stove, to accomplish the isolation of furnace gas and stove outer air, make furnace inner space because of the air pressure of bleeding during not higher than normal atmosphere air can not enter in stove.After in air enters stove, can form mixed gas, and mixed gas chance fire is explosive.
One side is due to the maximization of smelting furnace, smelting furnace both sides often by several piece even tens side walls assemble, on the other hand because headwall is fixed, and side wall is often dismounting and impossible static often in smelting process, therefore the sealing between the outer overall situation of subenvironment and stove in stove, generally include between side wall and side wall, between side wall and ground, between headwall and side wall, cover body and headwall, the several aspects of cover body and side wall, and cover body and headwall, sealing between cover body and side wall comprises again cover body with place, gap between two adjacent side walls, the sealing that cover body is located with gap between headwall and side wall etc.
Duan Xiaoyan has submitted the patent application of " a kind of furnace side wall of collecting silicon carbide smelting furnace gases " on July 1st, 2011, the sealing in gap therebetween after having related to the structure of side wall and side wall and assembling on smelting furnace; On July 10th, 2011, submit the patent application of " sealing between a kind of side wall of silicon carbide smelting furnace and ground " to, related to the sealing in gap between side wall and ground; January 10 in 2012, submit the patent application of " a kind of end wall of silicon carbide smelting furnace " to, related to the structure of headwall and the sealing between headwall and side wall.The aforementioned sealing all not relating between cover body and headwall, cover body and side wall.
" a kind of sic smelting furnace that can reclaim smelting exhaust gas " that publication number is " CN 101337673A " introduced and on smelting furnace, installed bell (this case is called cover body) additional, employing arranges ring groove at burner (this case is called headwall) and furnace wall (this case is called side wall) top, ring groove is put into in the edge of bell, with quartz sand powder, Paris white, talcum powder, terra alba or its powder mix fine powder refractory materials, insert the edge that ring groove covers bell, thereby form the inner enclosed space of body of heater to realize the isolation of subenvironment and stove outer air in stove.The method does not relate to the sealing of side wall each other, between side wall and ground, between side wall and headwall.Simultaneously due to not just one of the side wall after shove charge, and side wall and headwall are again splits, the on-the-spot ring groove on polylith side wall and the side wall absolute one with being air tight between the ring groove on headwall of cannot accomplishing, so cover body cannot realize with the sealing that between two adjacent side walls, place, gap and cover body are located with gap between headwall and side wall.Again because bell is supported support, in addition furnace charge is constantly to sink in smelting process, therefore between bell and furnace charge, have living space, very easily there are a large amount of explosive mixed gass in this space on the one hand, and when furnace gas is drawn out of, bell holds and can't stand barometric point on the other hand.
Summary of the invention
The object of the invention is can not realize cover body with the present situation of the sealing that between two adjacent side walls, place, gap, cover body are located with gap between headwall and side wall for existing silicon carbide smelting technology, provide a kind of realization to comprise the cover body of cover body in being in the gap between headwall and side wall with the place, gap between two adjacent side walls, cover body and the cheapness between headwall and cover body and side wall, convenience, safe and reliable sealing, to realize extraction furnace gas safely.
Technical scheme of the present invention is such: a kind of sic smelting furnace cover body with headwall and cover body with the sealing between side wall, side wall, cover body after assembling by headwall, on smelting furnace form, difference is that the edge of cover body is " V " font, does not establish support and be directly covered on furnace charge under cover body.Between the packing cloth of cover body with the place, gap between two adjacent side walls, cover body is with more difficult selfsealings under gas pressure between the packing cloth at the place, gap between headwall and side wall, normally adhere to sealing compound and realize sealing.Cover body outside is pressed with binder; binder covering cover body protective guard body is not shifted by external force or damages on the one hand; under the gravity of binder, make on the other hand cover body be close to all the time on furnace charge, prevent because furnace charge sinks to forming cavity between cover body and furnace charge, having explosive mixed gas in power transmission smelting process.When the undergage because of cover body adopts overlapping mode, with binder, compress the lap-joint of cover body simultaneously.The cover body edge being connected with headwall can not be " V " font yet.
Described headwall is exactly the headwall of Duan Xiaoyan in " a kind of end wall of silicon carbide smelting furnace " patent of 10 submissions January in 2012 is declared, and electrode, masonry, annex, consists of.Electrode is electrical conductor, and masonry is built by laying bricks or stones and formed by material of construction, and annex is the assembly being installed on element body, comprise sealing plate, material closure plate, supporting plate etc.
Described side wall is exactly the side wall of Duan Xiaoyan in " a kind of furnace side wall of collecting silicon carbide smelting furnace gases " patent of submission on July 1st, 2011 is declared, and is manufactured with respectively sealing plate and material closure plate at the two ends of published airtight side wall.The nearly furnace charge side of side wall contacting with cover body requires smooth.
Described cover body is exactly to be covered in the seal closure that the flexible materials on furnace charge forms, and it is cover body that plastic cloth is selected at scene conventionally, but cover material is not limited only to plastic cloth.The edge of cover body is " V " font, and the nearly furnace charge side of side wall is just in time close on a limit of " V " word, before not bleeding, by binder, is not pressed the nearly furnace charge side in side wall, and when withdrawing gas in stove, cover body is close on side wall under the effect of air pressure.The sealing that between cover body and two adjacent side walls, place, gap, cover body are located with gap between headwall and side wall is normally such: there is packing cloth at the place, gap between two adjacent side walls, also there is packing cloth at place, gap between side wall and headwall, when being affixed on side wall, cover body is also affixed on the sealing plate of side wall and headwall simultaneously, between cover body and packing cloth, be separated with sealing plate like this, adjacent two sealing plates the more difficult selfsealings of flexible materials (packing cloth and cover body) at opposite face place, the way that employing adheres to sealing compound herein is conventionally gap sealing herein.It is in order better to adapt to constantly the sink sealing of this dynamic process of smelting process furnace charge that the edge of cover body is " V " font.
Because side wall self is air-locked, scheme sealing that " a kind of furnace side wall of collecting silicon carbide smelting furnace gases " patent mentions in declaring on July 1st, 2011 is submitted to by Duan Xiaoyan in the gap between two adjacent side walls; Between side wall and headwall, by Duan Xiaoyan, on January 10th, 2012 submitted to scheme sealing that " a kind of end wall of silicon carbide smelting furnace " patent mentions in declaring; Between side wall and ground, by Duan Xiaoyan, on July 10th, 2011, submitted to scheme sealing that " sealing between a kind of side wall of silicon carbide smelting furnace and ground " patent mentions in declaring, therefore whole body of heater inside is airtight gastight.Starting to bleed while making in stove as negative pressure, cover body is under the effect of air pressure, be adsorbed in tightly in the nearly furnace charge side of side wall of cover body and side wall contact position, be attracted on the sealing plate of side wall and headwall, be attracted on the supporting plate of headwall annex, completed sealing, realized from the object of withdrawing gas in stove.
Described sealing compound is the cohesive material of the plasticity that had, and scene can be selected clay water that plasticity is good to be in harmonious proportion and form, and requires not disperse, be not flowable state under the immersional wetting of water.For increasing visco-plasticity, can add admixture if desired.For guaranteeing the visco-plasticity of the sealing compound that clay mediation forms, make it not dry and cracked, adopt with water infiltration sealing compound.The clay water mediation that it is good that plasticity is selected at sealing compound scene conventionally forms, but be not limited only to water mediation clay, on-the-spot visual particular case is selected, and when sealing compound is non-clay matter (as lubricating grease etc.), its plasticity is not done to lay special stress on, and also not doing must be with the requirement of water infiltration.
The present invention has following unusual effect:
1, the present invention is rational in infrastructure, draws materials easily.
2, execute-in-place of the present invention is easy, safe and reliable, and seal operation easily realizes and seals with low cost.
Accompanying drawing explanation
Fig. 1 is the schematic top plan view that the present invention removes binder.
Fig. 2 is the 1-1 schematic cross-section that Fig. 1 of the present invention does not remove binder.
Fig. 3 is the local B enlarged diagram that Fig. 1 of the present invention removes binder.
Fig. 4 is the 2-2 schematic cross-section that Fig. 1 of the present invention does not remove binder.
Overlap joint schematic diagram when Fig. 5 is cover body undergage of the present invention.
Fig. 6 is the local A enlarged diagram that Fig. 1 of the present invention removes binder.
Fig. 7 is another form enlarged diagram of local A that Fig. 1 of the present invention removes binder.
Fig. 8 is shove charge working order schematic diagram of the present invention (1-1 cross section).
Fig. 9 is the 3-3 schematic cross-section that Fig. 1 of the present invention does not remove binder.
1-electrode
2-headwall
3-side wall
4-sealing plate
5-packing cloth
6-expects closure plate
7-material is stifled
8-supporting plate
9-cover body
10-filler
11-binder
12-furnace charge
13-sealing compound
The interim baffle plate of 14-
Embodiment
Embodiment of the present invention is illustrated by reference to the accompanying drawings:
As shown in Figure 1, first side wall (3) is assembled in smelting furnace both sides.
Embodiment mono-:
As shown in Figure 1, Figure 2, shown in Fig. 8, Fig. 9, when side wall (3) is after has assembled smelting furnace both sides, packing cloth (5) is placed in to nearly filler (10) side of adjacent two sealing plates (4) on headwall (2), side wall (3), puts an interim baffle plate (14) so that packing cloth (5) is affixed on nearly filler (10) side of sealing plate (4).Material stifled (7) is installed, is loaded afterwards filler (10), filler (10) starts to load furnace charge (12) to certain altitude after having loaded.Cover body (9) edge is to " V " font style and is placed in furnace charge (12) above, the edge of assurance cover body (9) is close to nearly furnace charge (12) side of side wall (3), is close in nearly furnace charge (12) side and headwall annex supporting plate (8) of sealing plate (4).
As shown in Figure 1, Figure 2, shown in Fig. 6, Fig. 7, Fig. 8, between the packing cloth (5) at the opposite face place of two adjacent sealing plates (4) and cover body (9), adhere to sealing compound (13), make sealing compound (13) that sealing plate (4), packing cloth (5), cover body (9) are sticked into one and realize sealing.
As shown in Figure 1, Figure 3, the concave surface place being connected with sealing plate (4) with headwall annex supporting plate (8) at cover body (9) edge adheres to sealing compound (13), makes sealing compound (13) that sealing plate (4), supporting plate (8), cover body (9) are sticked into one and realizes sealing.
Load binder (11) to cover cover body (9) and to make cover body (9) location.Pump interim baffle plate (14).So far completed cover body with headwall and cover body with the sealing between side wall.
As shown in Figure 5, when cover body (9) undergage, with diagramatic way overlap joint, and cover cover body (9) with binder (11).When overlap joint also has cover body (9) not enough along body of heater lengthwise dimension, not shown in FIG..
Furnace charge (12) is by Multicomponent and form, irrelevant because of itself and focus of the present invention, therefore do not segment, is commonly referred to as furnace charge (12); Filler (10), binder (11) substitute with furnace charge (12) conventionally, but are not limited only to substitute with furnace charge (12).
The effect of described filler is crush seal cloth, and packing cloth is close on sealing plate, realizes the sealing in gap between adjacent two sealing plates.Scene selects plastic cloth as packing cloth conventionally, but is not limited only to make packing cloth with plastic cloth.
The effect of described interim baffle plate is stop up furnace charge or filler and protect packing cloth, and its quantity also can not be one, its position can be also packing cloth away from filler side, the complete interim baffle plate of also can not dismantling of shove charge.
The stifled effect of described material is to stop up filler not fall outside runout.
Described sealing plate effect be to attach packing cloth to realize sealing.
Described supporting plate and sealing plate are sealed, and its effect is support, attaching cover body.
The filling order of filler and furnace charge is not done special requirement.
Embodiments of the invention are not limited to above-mentioned a kind of, and any embodiment forming according to the scheme combination of technical solution of the present invention and embodiment,, for supporting the present invention, falls into protection scope of the present invention.
Claims (3)
- A sic smelting furnace cover body with headwall and cover body with the sealing method between side wall, smelting furnace is by headwall (2), side wall (3) forms, on smelting furnace, cover cover body (9), it is characterized in that cover body (9) edge is " V " font, nearly furnace charge (12) side of side wall (3) is close on a limit of " V " font, under cover body (9) without upholder, directly be covered on furnace charge (12), on cover body (9), there is binder (11), cover body before not bleeding (9) is pressed nearly furnace charge (12) side in side wall by binder (11), when withdrawing gas in stove, cover body (9) is close on side wall under the effect of air pressure, realized sealing.
- 2. a kind of sic smelting furnace cover body as claimed in claim 1, with headwall and cover body with the sealing method between side wall, is characterized in that the material of cover body (9) is flexible materials.
- 3. a kind of sic smelting furnace cover body as claimed in claim 2, with headwall and cover body with the sealing method between side wall, is characterized in that the material of cover body (9) is plastic cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210021966.4A CN102583383B (en) | 2011-08-02 | 2012-01-15 | Sealing among same-end walls and same-side walls of cover body of silicon carbide smelting furnace |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110227362 | 2011-08-02 | ||
| CN201110227362.0 | 2011-08-02 | ||
| CN201210021966.4A CN102583383B (en) | 2011-08-02 | 2012-01-15 | Sealing among same-end walls and same-side walls of cover body of silicon carbide smelting furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102583383A CN102583383A (en) | 2012-07-18 |
| CN102583383B true CN102583383B (en) | 2014-08-27 |
Family
ID=46472746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210021966.4A Expired - Fee Related CN102583383B (en) | 2011-08-02 | 2012-01-15 | Sealing among same-end walls and same-side walls of cover body of silicon carbide smelting furnace |
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| Country | Link |
|---|---|
| CN (1) | CN102583383B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103302396B (en) * | 2013-06-19 | 2016-01-27 | 深圳市德润青华水下工程科技股份有限公司 | A kind of underwater robot friction welding system and welding method thereof |
| CN109405566A (en) * | 2018-09-04 | 2019-03-01 | 段晓燕 | A kind of sic smelting furnace for collecting tail gas |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1802314A (en) * | 2003-07-18 | 2006-07-12 | 山崎则幸 | Carbide manufacturing device and carbide manufacturing method |
| CN101337673B (en) * | 2007-07-05 | 2011-07-20 | 贾玉东 | Refining furnace of silicon carbide for recovering smelting waste gases |
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2012
- 2012-01-15 CN CN201210021966.4A patent/CN102583383B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN102583383A (en) | 2012-07-18 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20140827 Termination date: 20190115 |