CN102344139A - Seal between silicon carbide smelting furnace side wall and ground - Google Patents
Seal between silicon carbide smelting furnace side wall and ground Download PDFInfo
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- CN102344139A CN102344139A CN2011102027607A CN201110202760A CN102344139A CN 102344139 A CN102344139 A CN 102344139A CN 2011102027607 A CN2011102027607 A CN 2011102027607A CN 201110202760 A CN201110202760 A CN 201110202760A CN 102344139 A CN102344139 A CN 102344139A
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Abstract
The invention provides a seal between a silicon carbide smelting furnace side wall and the ground, which aims to solve the difficulty that in the existing silicon carbide smelting technology, as the part between the silicon carbide smelting furnace side wall and the ground is hard to seal, the gas in the silicon carbide smelting furnace can not be pumped. The seal adopts the technical scheme that a side wall pad (9) is arranged below a known airtight side wall (1); the side wall pad (9) is deeply embedded under the ground and is compact and airtight; a sealant (8) is adhered onto the side wall pad (9); and the side wall (1), the side wall pad (9) and the sealant (8) jointly form a seal so as to realize the sealing between the side wall (1) and the ground after the side wall (1) is assembled on a smelting furnace. The seal is simple to manufacture, is used for sealing a gap between the side wall and the ground and has the advantages that the seal is simple and feasible to operate, has low cost and is safe and reliable after the gas in the silicon carbide smelting furnace is pumped.
Description
Technical field
The invention belongs to the silicon carbide technical field of smelting, relate to a kind of sic smelting furnace furnace gas and be drawn out of stove sealing between side wall and ground when outer.
Background technology
Sic smelting furnace is made up of headwall, side wall, siege.Existing silicon carbide production technology can't be extracted the gas safety in the smelting furnace out, with the purpose that realizes holding concurrently collection and confinement of gases negative pressure smelts.Make a large amount of CO gases after the smelting furnace surface combustion, form CO on the one hand
2Directly enter atmosphere, not only wasted resource but also increased the quantity discharged of carbon, can't realize the production requirement of energy-saving and emission-reduction, low-carbon environment-friendly, can't realize that on the other hand negative pressure smelts and reduce the product power consumption.
Summary of the invention
The key of safe withdrawing gas is the realization that seals between overall situation outside subenvironment and the stove in the stove in stove, so that accomplish the isolation of furnace inner space and stove outer air, air can not get in the stove when making furnace inner space not be higher than normal atmosphere because of the air pressure of bleeding.After in the air admission stove, can form mixed gas, and mixed gas chance fire is explosive.
Because the maximization of smelting furnace; The smelting furnace both sides are assembled by several piece even tens side walls often; Therefore the sealing between the outer overall situation of subenvironment and stove in the stove generally includes between side wall and the side wall, several aspects such as between side wall and the ground, between side wall and headwall.
Duan Xiaoyan has submitted the application for a patent for invention of " a kind of furnace side wall of collecting sic smelting furnace gas " on July 1st, 2011; Relate to structure and side wall sealing in slit therebetween after assembling on the smelting furnace of side wall, do not related to the sealing on side wall and ground etc.
The objective of the invention is well to seal the present situation in slit between side wall and ground, sealing cheap, convenient and reliable between a kind of side wall and ground is provided, extract furnace gas out to realize safety to existing silicon carbide smelting technology.Sealing between headwall and side wall will be in the separate case application.
Disclosed sealing at present is that the water seal method is adopted in the cover body lower end that stove installs additional outward, does not also have the report of water seal method between side wall and ground.Water seal method between side wall and ground promptly side wall with the place, slit that contacts be full of water, with water seal gas shutoff body.Though water seal method good sealing effect, since the effect of barometric point, the demand when being difficult to satisfy draft greatly.We know; A normal atmosphere equals 10 meters high water columns; When in stove, realizing 0.9 atmospheric negative pressure, just require 1 meter the depth of water; Negative pressure value more hour requires the degree of depth of water darker; And the degree of depth of water realizes by the ditch groove depth; This is to be difficult to realize that the scene is not allow very dark groove at the scene, and this brings very big difficulty can for on-the-spot operation.The existence of operation field groove makes operation not only dangerous but also inconvenient on the one hand, and the maintenance cost of groove self is very high on the other hand.
Technical scheme of the present invention is such: the sealing between a kind of sic smelting furnace side wall and ground, form by sealing compound, side wall pad, side wall.Side wall after the shove charge operation is accomplished in assembling on the smelting furnace, is adhered to sealing compound on the side wall pad, directly cram the slit between side wall and ground or be bonded and sealed cloth to realize the sealing in slit between side wall and ground with adherent sealing compound with adherent sealing compound.
Said sealing compound is the cohesive material with good plasticity.The scene can be selected for use the good clay water of plasticity to be in harmonious proportion and form, and requirement does not disperse, is not flowable state under the immersional wetting of water.Can add admixture in case of necessity for increasing visco-plasticity.For guaranteeing the visco-plasticity of the sealing compound that the clay mediation forms, make it not dry and cracked, adopt the way of water infiltration.
The contact surface of said side wall pad and side wall requires straight and even, and the scene is built with concrete usually and formed.The side wall pad requires buried underground and have a certain intensity; Guarantee its cause because of seasonal variation under cold and Warm Changes in Northern and other external force effect indeformable; And the soil of requirement and the earth closely contacts; And self densification is airtight; To prevent that air is along side wall pad edge or pass the side wall pad and get in the stove; Mix with furnace gas and form mixed gas, will in the soil around the side wall pad, water water infiltration in case of necessity, with the shutoff air.For guaranteeing the existence of sealing compound soakage water, can make a grooved thereon and the splendid attire soakage water.Because of smelting furnace length generally all surplus in the of tens to 100 rice between; After the corresponding side wall assembling corresponding length is arranged also; For preventing the distortion of the side wall pad that thermal stress causes,, still adopt sealing compound to fill between section and the section to seal usually with side wall pad sectional making along its length.Dry and cracked for preventing sealing compound equally with water infiltration.
Said side wall is exactly disclosed airtight side wall.
The present invention has following unusual effect:
1, the present invention is rational in infrastructure, makes simply, draws materials easily, and is with low cost.
2, execute-in-place of the present invention is easy to be reliable, and seal operation realizes easily and seals with low cost.
Description of drawings
Fig. 1 is the sic smelting furnace schematic top plan view.
Fig. 2 is the A-A schematic cross-section of the present invention's smelting furnace shown in Figure 1.
Fig. 3 is the local B enlarged diagram of Fig. 2 of the present invention.
Fig. 4 is local another form enlarged diagram of B of Fig. 2 of the present invention.
The 1-side wall
The 2-headwall
The 3-electrode
The 4-furnace charge
The 5-siege
6-base soil
The 7-soakage water
8-sealing compound
9-side wall pad
The 10-packing cloth
The 11-binder
Embodiment
Embodiment of the present invention combines accompanying drawing explanation:
Embodiment one:
Like Fig. 1, Fig. 2, shown in Figure 3; Distinguish ditching in its both sides side wall (1) position when smelting furnace is built, and build out side wall pad (9) with concrete, side wall pad (9) upper surface requires straight and even; The groove that splendid attire soakage water (7) as shown in Figure 3 is set is gone up in the infiltration of sealing compound (8) for ease at side wall pad (9).Because smelting furnace side wall assembling back length is longer, side wall pad (9) segmentation setting usually, section and the intersegmental expansion joint of leaving, fill with sealing with sealing compound (8) at the expansion joint, and dry and cracked to prevent with water infiltration sealing compound (8).Side wall pad (9) requires fine and close airtight, and requirement closely contacts with the earth soil, and in case of necessity with water infiltration soil, assurance soil is airtight.
Clean the groove on the smelting furnace side wall pad to be installed (9), begin side wall (1) is assembled on the stove after foreign material in it are removed.After accomplishing the filling of furnace charge (4); Clean the groove on the side wall pad (9) once more; Make the position of sealing compound among Fig. 3 (8) clean; With on side wall pad (9), adhering to sealing compound (8) behind water infiltration sealing compound (8) position and directly cramming Fig. 3 with sealing compound (8) and show the slit between side wall (1) and side wall pad (9); In groove, inject soakage water (7) and soak into sealing compound (8), guarantee that sealing compound (8) is not dry and cracked.So far accomplish the sealing on side wall (1) and ground.
Embodiment two:
Like Fig. 1, Fig. 2, shown in Figure 4; Remove " adhering to sealing compound (8) and directly cram Fig. 3 with sealing compound (8) and show the slit between side wall (1) and side wall pad (9) with going up at side wall pad (9) behind water infiltration sealing compound (8) position; in groove, inject soakage water (7) infiltration sealing compound (8), assurance sealing compound (8) is not dry and cracked among the embodiment one." change into and " show sealing compound (8) with going up adhesion Fig. 4 at side wall pad (9) behind water infiltration sealing compound (8) position, with water infiltration sealing compound (8), guarantee that sealing compound (8) is not dry and cracked.Packing cloth (10) is placed position shown in Figure 4, and with sealing compound (8) cloth (10) that is bonded and sealed, with binder (11) crush seal cloth (10), assurance packing cloth (10) is close on side wall (1) and the sealing compound (8).Keep binder (11) bottom moist, make sealing compound (8) not dry and cracked." outside, all the other are all identical with embodiment one.
Among the above embodiment one: when sealing compound (8) image regard fillet weld as when representing its size, " leg " size is generally several centimetres, does not then limit greatly; For preventing winter to endure cold, the scene can adopt the way of covering to sealing compound (8) and soakage water (7) insulation.
Among the embodiment two: packing cloth (10) is selected plastic cloth usually for use but is not limited only to use plastic cloth; Binder (11) scene substitutes with furnace charge (4) usually, but is not limited only to substitute with furnace charge (4).
Among the embodiment one, two: adhere to sealing compound (8) Shi Qiwei and whether depend on the circumstances with water infiltration earlier, do not do special demands; Siege among the figure (5) and side wall pad (9) are not done the requirement of necessary height such as grade, and siege (5) is not done with the necessary concordant requirement of terrace with side wall pad (9) yet, and its relative high and low position of particular case decision is looked at the scene; The material of sealing compound (8) also is not limited to water mediation clay a kind of, and on-the-spot visual particular case is selected for use, when sealing compound (8) is non-clay matter, its plasticity is not done lay special stress on; Furnace charge (4) is by multiple component and form, and is irrelevant because of itself and focus of the present invention, so do not segment, is commonly referred to as furnace charge (4); Will take heating and insulation measure winter when implementing seal operation.
Claims (7)
1. the sealing between sic smelting furnace side wall and ground; Smelting furnace is made up of side wall (1), headwall (2), siege (5); It is characterized in that side wall pad (9) is arranged under the side wall (1); Side wall pad (9) is buried underground and self is fine and close airtight; Side wall pad (9) is gone up and is adhered to sealing compound (8), and side wall (1), side wall pad (9), sealing compound (8) seal common the composition.
2. the sealing between a kind of sic smelting furnace side wall as claimed in claim 1 and ground is characterized in that sealing compound (8) forms with the mediation of clay water.
3. the sealing between a kind of sic smelting furnace side wall as claimed in claim 1 and ground is characterized in that the slit between side wall (1) and side wall pad (9) is that the sealing compound (8) that adheres on the side wall pad (9) is directly crammed.
4. the sealing between a kind of sic smelting furnace side wall as claimed in claim 1 and ground is characterized in that slit between side wall (1) and side wall pad (9) is to adhere to cloth (10) sealing that is bonded and sealed of sealing compound (8) on the side wall pad (9).
5. the sealing between a kind of sic smelting furnace side wall as claimed in claim 1 and ground is characterized in that side wall pad (9) is provided with the groove of splendid attire soakage water (7).
6. the sealing between a kind of sic smelting furnace side wall as claimed in claim 1 and ground is characterized in that sealing compound (8) is by water infiltration.
7. like the sealing between claim 1, the described a kind of sic smelting furnace side wall of claim 4 and ground, it is characterized in that packing cloth (10) is pressed on it down by binder (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102027607A CN102344139A (en) | 2011-07-10 | 2011-07-10 | Seal between silicon carbide smelting furnace side wall and ground |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102027607A CN102344139A (en) | 2011-07-10 | 2011-07-10 | Seal between silicon carbide smelting furnace side wall and ground |
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| Publication Number | Publication Date |
|---|---|
| CN102344139A true CN102344139A (en) | 2012-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102027607A Pending CN102344139A (en) | 2011-07-10 | 2011-07-10 | Seal between silicon carbide smelting furnace side wall and ground |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109405566A (en) * | 2018-09-04 | 2019-03-01 | 段晓燕 | A kind of sic smelting furnace for collecting tail gas |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3950602A (en) * | 1973-12-21 | 1976-04-13 | Elektroschmelzwerk Kempten Gmbh | Furnace installation operated by direct electrical heating according to the resistance principle in particular for preparation of silicon carbide |
| CN101245604A (en) * | 2007-02-12 | 2008-08-20 | 上海电气风电设备有限公司 | Draught fan tower barrel base sealing technology |
| CN101337673A (en) * | 2007-07-05 | 2009-01-07 | 贾玉东 | Refining furnace of silicon carbide for recovering smelting waste gases |
| CN101597460A (en) * | 2009-06-23 | 2009-12-09 | 天津开发区科泰化工新材料开发有限公司 | Dedicated sealant surface layer coating for high-performance storage tank bottom and preparation method thereof |
| CN101823710A (en) * | 2010-04-22 | 2010-09-08 | 段晓燕 | Method for recovering CO gas from silicon carbide smelting furnace |
-
2011
- 2011-07-10 CN CN2011102027607A patent/CN102344139A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3950602A (en) * | 1973-12-21 | 1976-04-13 | Elektroschmelzwerk Kempten Gmbh | Furnace installation operated by direct electrical heating according to the resistance principle in particular for preparation of silicon carbide |
| CN101245604A (en) * | 2007-02-12 | 2008-08-20 | 上海电气风电设备有限公司 | Draught fan tower barrel base sealing technology |
| CN101337673A (en) * | 2007-07-05 | 2009-01-07 | 贾玉东 | Refining furnace of silicon carbide for recovering smelting waste gases |
| CN101597460A (en) * | 2009-06-23 | 2009-12-09 | 天津开发区科泰化工新材料开发有限公司 | Dedicated sealant surface layer coating for high-performance storage tank bottom and preparation method thereof |
| CN101823710A (en) * | 2010-04-22 | 2010-09-08 | 段晓燕 | Method for recovering CO gas from silicon carbide smelting furnace |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109405566A (en) * | 2018-09-04 | 2019-03-01 | 段晓燕 | A kind of sic smelting furnace for collecting tail gas |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120208 |