CN2830392Y - Front mounted sintering channel type foamed glass foaming kiln - Google Patents
Front mounted sintering channel type foamed glass foaming kiln Download PDFInfo
- Publication number
- CN2830392Y CN2830392Y CNU2005201157622U CN200520115762U CN2830392Y CN 2830392 Y CN2830392 Y CN 2830392Y CN U2005201157622 U CNU2005201157622 U CN U2005201157622U CN 200520115762 U CN200520115762 U CN 200520115762U CN 2830392 Y CN2830392 Y CN 2830392Y
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- CN
- China
- Prior art keywords
- kiln
- preposition
- sintering
- foamed glass
- combustion chamber
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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- Tunnel Furnaces (AREA)
Abstract
The utility model relates to a front-installed sintering tunnel type foamed glass foaming kiln which comprises a tunnel type kiln body, a heating device and a driving device, wherein the kiln body comprises a preheating segment (2), a foaming segment (3) and a cooling shaping segment (4); a front-installed sintering segment (1) is arranged at the entrance end of a kiln head in front of the preheating segment (2), and a strong heating device is arranged in the front-installed sintering segment; the strong heating device can adopt liquid fuel such as fuel oil, etc. or gas fuel such as natural gas, etc. to heat. When the utility model is used for sintering adiabatic foamed glass, a steel mould box is rapidly heated by the strong heating device in the front-installed sintering segment after enters the kiln body, so the upper surface of powder in the steel mould box is quickly sintered, melted and slightly foamed to form an airtight melting thick micropore foamed glass film to isolate the powder from the air to prevent the carbon black in the powder from oxidizing and combusting early. The good foamed glass with white porcelain blocks and very few stripes and inhomogeneous large holes can be obtained.
Description
Technical field
The utility model relates to a kind of production unit of multicellular glass, a kind of preposition sintering tunnel like foamed glass foaming kiln.
Background technology
Existing tunnel like foamed glass foaming kiln comprises kiln body, heating unit and transmission mechanism.The kiln body is from kiln head entrance end, and setting gradually is low-temperature prewarming section, high temperature foaming section and three zones of cooling shaping section.The preheating section temperature is between 250 ℃～350 ℃, and length accounts for about 20% of kiln body length overall.High temperature foaming section top temperature is between 850 ℃～900 ℃, and length accounts for about 50% of kiln body length overall.Cooling shaping section temperature is between 500 ℃～550 ℃, and length accounts for about 30% of kiln body length overall.When making multicellular glass, after glass powder and whipping agent mixing, in the high temperature steel diaphragm capsule of packing into, the punching block box is sent in the kiln from kiln head by transmission mechanism, pass through preheating (10～15 minutes), foaming (25～30 minutes) and cooling shaping (15～20 minutes) successively, make multicellular glass.
When producing black heat insulation foam glass, must adopt the charcoal element to make whipping agent, the charcoal element is oxidized in the foaming section, thereby produces gas, forms bubble in molten thick glass, makes glass swelling become multicellular glass.The plain whipping agent of charcoal will begin oxidation when temperature reaches more than 350 ℃, produce gas.And the molten thick temperature of glass powder is about 750 ℃.Be blended in charcoal element in the glass powder when glass powder does not all reach molten thick state as yet in case gasified, will make partial compound lose swelling capacity, form anomalous structures such as white lump, speckle, influence the quality of foam glass product.When stating tunnel like foamed glass foaming kiln production multicellular glass in the use, although under the plain oxidizing temperature of charcoal, be provided with preheating section, but influence owing to penetrated with the thermal resistance of compound powder etc. by the heat width of cloth in the kiln, and because the restriction of kiln chamber, foaming district unit length internal heating power, the temperature of compound powder rises to from 350 ℃ that molten fully thick state still needs 10～14 fens clock times more than 750 ℃.In period, plain oxidation one gasification that can produce to a certain degree of the charcoal in the upper epidermis bisque of compound powder causes product defectives such as white porcelain piece or white speckle to occur at this section.
In order to reduce defectives such as white porcelain piece on the multicellular glass and speckle, all once adopted the way of adding a cover a high temperature steel cover plate above the compound powder in the punching block box both at home and abroad, make the upper surface and the furnace air of material powder isolated, thereby reduce the oxidation in advance of charcoal element.But behind the capped steel cover plate, the unnecessary escape gas that produces in foaming process is pushed by the sealing of steel deck-plate and gravity, is blocked and stays the first half of multicellular glass body, forms some big and uneven bubbles, and the quality of multicellular glass is reduced.
Summary of the invention
The utility model is intended to propose a kind of structure that can improve the tunnel like foamed glass foaming kiln of black heat insulation foam glass quality, a kind of preposition sintering tunnel like foamed glass foaming kiln.
This preposition sintering tunnel like foamed glass foaming kiln comprises tunnel oven body, heating unit and transmission mechanism.The kiln body comprises preheating section, foaming section and cooling shaping section.Before preheating section, also have one section preposition sintering stage, be equipped with in this preposition sintering stage and force thermic devices at the first entrance end of kiln.
When producing heat insulation foam glass with this preposition sintering tunnel like foamed glass foaming kiln, the punching block box enters and promptly is subjected to behind the kiln body forcing the thermic devices rapid heating in the preposition sintering stage, make the rapid sintering of powder upper surface, fusion and slight foaming in the punching block box, form the air-locked molten thick shape fine-celled foam glassy membrane of one deck, make powder and air isolated, prevent that the carbon black in the powder from shifting to an earlier date oxidation and burning mistake.With this preposition sintering tunnel like foamed glass foaming klining system multicellular glass, can obtain that white porcelain piece, speckle and inhomogeneous macropore are few, colory multicellular glass.
Description of drawings
Accompanying drawing 1 is the structure iron of this preposition sintering tunnel like foamed glass foaming kiln;
Accompanying drawing 2 is second kind of structure iron of preposition sintering tunnel like foamed glass foaming kiln.
Embodiment
As shown in Figure 1, this preposition sintering tunnel like foamed glass foaming kiln comprises tunnel oven body, heating unit and transmission mechanism.The kiln body comprises preheating section 2, foaming section 3 and cooling shaping section 4.Before preheating section 2, also have one section preposition sintering stage 1, be equipped with in this preposition sintering stage and force thermic devices at the first entrance end of kiln.The length of preposition sintering stage can be 1/12～1/8 of kiln body total length.The punching block box is inside by taking about 7～8 minutes.
The thermic devices of forcing of this preposition sintering tunnel like foamed glass foaming kiln can be to adopt the heating unit of liquid fuel such as fuel oil, also can be the heating unit that adopts geseous fuel such as Sweet natural gas.When adopting fuel oil to make fuel, as shown in Figure 1, the thermic devices of forcing of this preposition sintering tunnel like foamed glass foaming kiln can be that the oil inflame that is loaded on the preposition sintering stage 1 kiln body upper portion side wall chews 5.Oil inflame is chewed from horizontal direction and carry out the torch firing heating above the punching block box.
A support that plays built on stilts effect can also be arranged at the bottom of the preposition sintering stage 1 of this preposition sintering tunnel like foamed glass foaming kiln, form combustion chamber 13 below the support, also can there be several oil inflames to chew 11 on the kiln body sidewall of this combustion chamber, from horizontal direction torch firing heating in the combustion chamber.The burner that is provided with at the bottom of the kiln helps improving preposition working temperature around the knot section.
Also can there be an oil inflame to chew 10 on the antetheca of the combustion chamber of this preposition sintering tunnel like foamed glass foaming kiln.
In addition, can be provided with flue in the sidewall of the top kiln body of the preposition sintering stage 1 of this preposition sintering tunnel like foamed glass foaming kiln, the flue gas that burning produces expels from kiln by flue.6 are floss hole among the figure.Described combustion chamber 13 can vertically be separated into several sections with firebreak 14, can be with holes on the firebreak, and ventilated mutually in the several chambers that are separated into.Cover plate 12 is arranged at the top of combustion chamber, and the branch aperture that catches fire distributes on the cover plate.The flame that burner in the combustion chamber produces enters kiln body top after by the fiery aperture homodisperse of the branch on the cover plate 12.
When adopting geseous fuel, as shown in Figure 2, the forcing thermic devices and can adopt the fuel gas buring that is loaded on the preposition sintering stage kiln top to chew 19 of this preposition sintering tunnel like foamed glass foaming kiln.The flame that fuel gas buring is chewed sprays from the top down.A support that plays built on stilts effect also can be arranged at the bottom of preposition sintering stage, forms combustion chamber 13 below the support, also can have several fuel gas burings to chew 20 at the bottom of the kiln of this combustion chamber.The flame that these fuel gas burings are chewed sprays from bottom to top.In addition, also be provided with flue in the sidewall of the top kiln body of preposition sintering stage 1.Combustion chamber 13 vertically is separated into several sections with firebreak 14.Cover plate 12 is arranged at the top of combustion chamber, and the branch aperture that catches fire distributes on the cover plate.
As depicted in figs. 1 and 2, transmission mechanism comprises pusher 8, guide rail 17 and gear frame 16, and transmission mechanism also can adopt structures such as beaming roller transmission, chain gear.The heating unit of preheating section 2, foaming section 3 and cooling shaping section 4 adopts electric heater 7 and 18, also can adopt other heating units such as fuel oil or combustion gas.9 is the fire door at the first place of kiln among the figure.
As shown in Figure 2, this preposition sintering tunnel like foamed glass foaming kiln also can be made double-joint type, and its cooling shaping section 4 and foaming section are separated from each other, become rapid chilling section between them.The vehicle frame 21 of one steel also can be arranged at the bottom of cooling shaping section, and several wheels 22 are arranged at the bottom of vehicle frame.The kiln body and the conveyor track of cooling shaping section can be removed, and are convenient to kiln body inside is overhauled.
This preposition sintering tunnel like foamed glass foaming kiln can be all newly-built, also can form with original tunnel like foamed glass foaming kiln (monoblock type or double-joint type) reconstruction.When reconstructing, can remove a part of preheating section, reconstruct into preposition sintering stage, perhaps, also can only before original preheating section, increase by one section preposition sintering stage with original kiln.
Process with this preposition sintering tunnel like foamed glass foaming klining system multicellular glass is as follows: the admixture of packing in punching block box 15 has the charcoal element to make the glass compound powder of whipping agent, it is real to apply concora crush, be placed on the gear frame 16, promote along guide rail 17, enter from the import of kiln head by pusher 8.At first in preposition sintering stage 1, heated rapidly, the top temperature of preposition sintering stage is about 700 ℃, and the top layer material powder that exposes in the punching block box in flame was melted rapidly in 3～4 minutes, and produced a small amount of expanded foam, cover down the layered material powder, make the charcoal element in the material powder avoid oxidized.The reducing atmosphere that fuel combustion forms in the preposition sintering stage has also reduced the oxidation of charcoal element.After this along with heat transmits to material powder middle part, the material powder is sintering gradually from outer course center.Diaphragm capsule moves in kiln with transmission mechanism, after about 7～8 minutes, enters preheating section 2.In preheating section, the material powder is sintering progressively, and the surface has formed heavy-gravity glass foam sealer coat, need not worry that the charcoal element is by premature oxidation again.Therefore, the temperature of preheating section can be brought up to 600 ℃～700 ℃.The time of preheating also can shorten.After preheating in 7～8 minutes, diaphragm capsule enters foaming section 3.Continue to be heated to 800 ℃～900 ℃ blowing temperature, continue 25～30 minutes, glass frit foaming under molten thick state is expanded to is full of diaphragm capsule.In foaming process, owing to do not add steel deck-plate on the bisque, the unnecessary gas that premature expansion produced no longer is squeezed, can rise to uppermost top layer, this top layer is former when post-treatment should give excision, thereby has reduced the delay of unnecessary gas at useful position, has reduced inhomogeneous gross blow hole.After the material powder in the punching block box is finished foaming, pass through cooling shaping section 4 cooling shapings again, it is very thin to make zone of oxidation, seldom the good foam-glass block of adularescent patch, speckle, inhomogeneous gross blow hole.Again through annealing furnace anneal, cutting forming, product.
Claims (8)
1, a kind of preposition sintering tunnel like foamed glass foaming kiln, comprise tunnel oven body, heating unit and transmission mechanism, the kiln body comprises preheating section (2), foaming section (3) and cooling shaping section (4), it is characterized in that at preheating section (2) before, one section preposition sintering stage (1) in addition being equipped with in this preposition sintering stage and forcing thermic devices at the first entrance end of kiln.
2, preposition sintering tunnel like foamed glass foaming kiln as claimed in claim 1 is characterized in that the described thermic devices of forcing is that (5) are chewed in the oil inflame that is loaded on preposition sintering stage (1) the kiln body upper portion side wall.
3, preposition sintering tunnel like foamed glass foaming kiln as claimed in claim 2, a support that plays built on stilts effect is arranged at the bottom that it is characterized in that described preposition sintering stage (1), form combustion chamber (13) below the support, also have several oil inflames to chew (11) on the kiln body sidewall of this combustion chamber.
4, preposition sintering tunnel like foamed glass foaming kiln as claimed in claim 3 is characterized in that also having an oil inflame to chew (10) on the antetheca of described combustion chamber.
5, preposition sintering tunnel like foamed glass foaming kiln as claimed in claim 4, it is characterized in that being provided with flue in the sidewall of top kiln body of described preposition sintering stage (1), described combustion chamber (13) vertically uses firebreak (14) to be separated into several sections, cover plate (12) is arranged at the top of combustion chamber, and the branch aperture that catches fire distributes on the cover plate.
6, preposition sintering tunnel like foamed glass foaming kiln as claimed in claim 1 is characterized in that the described hot charging of forcing is changed to the fuel gas buring that is loaded on preposition sintering stage (1) the kiln top and chews (19).
7, preposition sintering tunnel like foamed glass foaming kiln as claimed in claim 6, a support that plays built on stilts effect is arranged at the bottom that it is characterized in that described preposition sintering stage (1), form combustion chamber (13) below the support, also have several fuel gas burings to chew (20) at the bottom of the kiln of this combustion chamber.
8, preposition sintering tunnel like foamed glass foaming kiln as claimed in claim 7, it is characterized in that being provided with flue in the sidewall of top kiln body of described preposition sintering stage (1), described combustion chamber (13) vertically uses firebreak (14) to be separated into several sections, cover plate (12) is arranged at the top of combustion chamber, and the branch aperture that catches fire distributes on the cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005201157622U CN2830392Y (en) | 2005-10-26 | 2005-10-26 | Front mounted sintering channel type foamed glass foaming kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005201157622U CN2830392Y (en) | 2005-10-26 | 2005-10-26 | Front mounted sintering channel type foamed glass foaming kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2830392Y true CN2830392Y (en) | 2006-10-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005201157622U Expired - Fee Related CN2830392Y (en) | 2005-10-26 | 2005-10-26 | Front mounted sintering channel type foamed glass foaming kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2830392Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102875006A (en) * | 2012-10-18 | 2013-01-16 | 北京首邦新材料有限公司 | Foaming kiln and foam glass production line comprising same |
| CN104909547A (en) * | 2015-06-15 | 2015-09-16 | 胡斯友 | High-efficiency and energy-saving kiln production line for producing high-performance foam glass |
| CN106595297A (en) * | 2016-12-16 | 2017-04-26 | 莆田市荣兴机械有限公司 | Energy-saving method for successive heating and successive stopping of heating in tunnel furnace |
| CN109053209A (en) * | 2018-08-10 | 2018-12-21 | 北京工业大学 | A method of control foamed ceramic furnace reduction atmosphere |
-
2005
- 2005-10-26 CN CNU2005201157622U patent/CN2830392Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102875006A (en) * | 2012-10-18 | 2013-01-16 | 北京首邦新材料有限公司 | Foaming kiln and foam glass production line comprising same |
| CN102875006B (en) * | 2012-10-18 | 2014-07-16 | 北京首邦新材料有限公司 | Foaming kiln and foam glass production line comprising same |
| CN104909547A (en) * | 2015-06-15 | 2015-09-16 | 胡斯友 | High-efficiency and energy-saving kiln production line for producing high-performance foam glass |
| CN106595297A (en) * | 2016-12-16 | 2017-04-26 | 莆田市荣兴机械有限公司 | Energy-saving method for successive heating and successive stopping of heating in tunnel furnace |
| CN109053209A (en) * | 2018-08-10 | 2018-12-21 | 北京工业大学 | A method of control foamed ceramic furnace reduction atmosphere |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061025 Termination date: 20141026 |
|
| EXPY | Termination of patent right or utility model |