CN102374788A - Furnace slow-cooling area structure capable of shrinking cross-sectional temperature difference - Google Patents
Furnace slow-cooling area structure capable of shrinking cross-sectional temperature difference Download PDFInfo
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- CN102374788A CN102374788A CN2011103253785A CN201110325378A CN102374788A CN 102374788 A CN102374788 A CN 102374788A CN 2011103253785 A CN2011103253785 A CN 2011103253785A CN 201110325378 A CN201110325378 A CN 201110325378A CN 102374788 A CN102374788 A CN 102374788A
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Abstract
The invention discloses a furnace slow-cooling area structure capable of shrinking cross-sectional temperature differences, which comprises a slow-cooling chamber, a plurality of conveying rollers, a large amount of heat-exchanging pipes and an exhausting mechanism, wherein the exhausting mechanism is communicated with the heat-exchanging pipes, the conveying rollers are sequentially arranged along the length direction of the slow-cooling chamber and are placed at the middle part of the slow-cooling chamber, the heat-exchanging pipes are arranged along the longitudinal direction of the slow-cooling chamber, each heat-exchanging pipe is a U-shaped steel pipe with two open ends, one end of each heat-exchanging pipe is communicated with a workshop, and the other end of each heat-exchanging pipe is communicated with the exhausting mechanism. The furnace slow-cooling area structure has the beneficial effects that the basic sameness of the temperatures of all points on the same cross section is realized; because a wind inlet and a wind outlet are positioned at different positions on the same section, the cooling effects can tend towards consistency under the conditions that the diameters of branched pipes are the same and the flow speeds of hot wind are the same, the cross-sectional temperature difference of a furnace-cooling passage is shrunk, the sameness of the cooling speeds of a product at the slow-cooling stage can be ensured, and the defects of the product caused by cooling temperature differences are avoided.
Description
Technical field:
The present invention relates to ceramic tile burning techniques field, is a kind of kiln slow cooling plot structure of the reduced cross section temperature difference but especially refer in particular to.
Background technology:
The pottery sintering process must have a slow cooling stage, and main purpose is the mild cooling in this district, prevent β quartzy ← → α quartz rapid Volume Changes (expand or shrink) when 573 ℃ of fast transition produces " wind is frightened " (cold cracking).Existing burning kiln equipment basically all adopts the lateral separation to arrange many cooling tubes (or claiming heat-exchange tube), makes through tube wall that high-temperature gas carries out heat exchange in cold wind and the kiln of low temperature in the pipe, reaches the purpose of cooling products.Basic mode be in the kiln cross section (kiln width) through crossing steel pipe, an end from the workshop inspiration cold wind other end discharge hot blast, and focus in the air main of taking out air-heater and drain.Cross section for the slow cooling district; The end temperature that this structure can form cold wind into inevitably is low; The other end temperature that goes out hot blast is high; Cause the kiln cross section temperature difference, make the diverse location of multiple row product or big products in same cross section, defectives such as " cold cracking ", rupture strength are not enough occur because of the inconsistent generation of cooling velocity " stress ".
Summary of the invention:
The objective of the invention is in order to overcome the shortcoming of above-mentioned prior art, but a kind of reduced cross section temperature difference is provided, can improve the kiln slow cooling plot structure of ceramic product physical index.
Goal of the invention of the present invention can realize through following technical scheme:
But a kind of kiln slow cooling plot structure of the reduced cross section temperature difference; The air draft mechanism that includes slow cooling chamber, many transfer rollers, a large amount of heat-exchange tubes and be connected with heat-exchange tube; Transfer roller along the slow cooling chamber length direction arrange successively, and place slow cooling chamber middle part, heat-exchange tube is vertically arranged along the slow cooling chamber.
Described heat-exchange tube is a both ends open " U " shape steel tube, and an end communicates with the workshop, and the other end is communicated with air draft mechanism.
Air draft mechanism is made up of exhausting arm group and air exhauster, and exhausting arm group is a closed at both ends, and mouth is taken out in the centre, and on pipeline, is welded with the airduct group of several pipe joints, takes out mouth and is connected with air exhauster.
With the transfer roller is the boundary, and the slow cooling chamber is divided into upper channel and lower channel, and heat-exchange tube is located at upper channel or lower channel, or upward lower channel all is provided with.
The invention has the beneficial effects as follows; Realized that same cross section each point temperature is basic identical; Because be in same cross section diverse location into and out of the air port, cooling effect can reach unanimity under the identical situation of the identical hot blast flow velocity of branch's caliber, has dwindled the cross section temperature difference of kiln cooling duct; Can guarantee that product is identical in the cooling velocity of slow cooling stage, the defective of avoiding product to cause because of cooling range.
Description of drawings:
Fig. 1 is the three-dimensional structure diagram in first embodiment of the invention kiln slow cooling district.
Fig. 2 is the side-looking structure chart in first embodiment of the invention kiln slow cooling district;
Fig. 3 is the side-looking structure chart in second embodiment of the invention kiln slow cooling district.
The specific embodiment:
Combine accompanying drawing to set forth the present invention in detail at present:
See that accompanying drawing 1 is with shown in the accompanying drawing 2; It is first case study on implementation of the present invention; Comprise the vertical heat-exchange tube in slow cooling chamber 1, many transfer rollers 2, " U " type 3, air exhauster 4 and exhausting arm group 5, transfer roller 2 along the slow cooling chamber 1 length direction arrange successively, slow cooling chamber 1 is transmitted roller 2 and is divided into upper channel 1a and lower channel 1b; The vertical heat-exchange tube 3 of " U " type is in the upper channel 1a of slow cooling chamber 1 length direction; And 1 top, cold house of postponing stretches out, and vertical heat-exchange tube 3 one ends of " U " type communicate with the workshop, and the other end is connected with the pipe joint of first flexible pipe 6 with exhausting arm group 4.
Each exhausting arm group 5 usefulness first are regulated butterfly valve 7 and are responsible for 8 with exhausting and link to each other, and exhausting is responsible for 8 and is linked to each other with air exhauster import airduct 41, and the air exhauster blast pipe 41 usefulness second adjusting butterfly valve 9 is communicated with air exhauster 4.
Cold wind sucks from an end and the workshop inlet communicating of the vertical heat-exchange tube 3 of " U " type; And exchange with hot gas that product 10 on the outer transfer roller 2 of tube wall brings; And constantly get into cold wind in the heat-exchange tube 3, and be aggregated into exhausting by each exhausting arm group through the first adjusting butterfly valve 7 to be responsible for 8, discharge by air exhauster 4 at last; Therefore product 10 temperature descend in the slow cooling chamber 1, have formed a kind of cooling system of heat exchange continuously.
Accompanying drawing 3 is second case study on implementation of the present invention, when product 10 is loaded in when firing on the backing plate 11, because the amount of stored heat of backing plate 11 and product 10 is bigger; It is not enough only depending on the vertical heat-exchange tube cooling in the upper channel 1a; Can arrange also in the lower channel 1b of slow cooling chamber that vertical heat-exchange tube 3, specific embodiments are to be responsible for 8 from exhausting to pick out arm 12, arrange the 3rd control valve 13 on this arm 12; Again by drop pipe 14 to 1 bottom, slow cooling chamber; Drop pipe 14 connects the middle of bottom transverse pipes 15, and is identical to guarantee each point exhausting pressure, each pipe joint of arranging on the bottom transverse pipe 15 respectively with vertical heat-exchange tube 3 on second flexible pipe 16 be connected.Cooling principle is identical with first case.
Above-mentioned is illustrative rather than determinate with reference to embodiment to the description that this kiln slow cooling district carries out, and therefore in the variation and the modification that do not break away under the invention general plotting, should belong within protection scope of the present invention.
Claims (4)
1. but the kiln slow cooling plot structure of a reduced cross section temperature difference; The air draft mechanism that includes slow cooling chamber, many transfer rollers, a large amount of heat-exchange tubes and be connected with heat-exchange tube; Transfer roller along the slow cooling chamber length direction arrange successively; And place middle part, slow cooling chamber, it is characterized in that: heat-exchange tube is vertically arranged along the slow cooling chamber.
2. but the kiln slow cooling plot structure of a kind of reduced cross section temperature difference according to claim 1 is characterized in that: described heat-exchange tube is a both ends open " U " shape steel tube, and an end communicates with the workshop, and the other end is communicated with air draft mechanism.
3. but the kiln slow cooling plot structure of a kind of reduced cross section temperature difference according to claim 1 and 2; It is characterized in that: air draft mechanism is made up of exhausting arm group and air exhauster; Exhausting arm group is a closed at both ends; Mouth is taken out in the centre, and on pipeline, is welded with the airduct group of several pipe joints, takes out mouth and is connected with air exhauster.
4. but the kiln slow cooling plot structure of a kind of reduced cross section temperature difference according to claim 1 is characterized in that: be the boundary with the transfer roller, the slow cooling chamber is divided into upper channel and lower channel, and heat-exchange tube is located at upper channel or lower channel, or upward lower channel all is provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110325378 CN102374788B (en) | 2011-10-24 | 2011-10-24 | Furnace slow-cooling area structure capable of shrinking cross-sectional temperature difference |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110325378 CN102374788B (en) | 2011-10-24 | 2011-10-24 | Furnace slow-cooling area structure capable of shrinking cross-sectional temperature difference |
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| CN102374788A true CN102374788A (en) | 2012-03-14 |
| CN102374788B CN102374788B (en) | 2013-10-16 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534884A (en) * | 2014-12-30 | 2015-04-22 | 广东摩德娜科技股份有限公司 | Novel circulating cooling system on sintering equipment |
| CN104907518A (en) * | 2015-07-02 | 2015-09-16 | 东北大学 | Slow-cooling temperature control device for stainless steel slabs and control method |
| CN109020481A (en) * | 2018-09-03 | 2018-12-18 | 合肥久新不锈钢厨具有限公司 | A kind of high intensity resistant ceramic tile and preparation method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104515400B (en) * | 2014-12-17 | 2016-09-14 | 广东摩德娜科技股份有限公司 | A kind of indirect cooling device reducing the wide cross section calcination equipment temperature difference |
Citations (6)
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|---|---|---|---|---|
| US4249895A (en) * | 1977-10-07 | 1981-02-10 | Welko Industriale S.P.A. | Kiln |
| CN200961998Y (en) * | 2006-05-31 | 2007-10-17 | 黄冈市华窑中瓷窑炉有限公司 | Routine porcelain roller channel stove emergency cooling device |
| CN201463605U (en) * | 2009-09-07 | 2010-05-12 | 洛伊热工工程(天津)有限公司 | High-temperature material gas ultra-rapid spray cooling unit |
| CN201575710U (en) * | 2009-12-08 | 2010-09-08 | 苏州工业园区姑苏科技有限公司 | Novel steel pipe roller-hearth furnace jet rapid cooling device |
| CN201772762U (en) * | 2010-09-08 | 2011-03-23 | 佛山市中窑窑业发展有限公司 | Energy saving cooling system for a roller kiln tail |
| CN202267372U (en) * | 2011-10-24 | 2012-06-06 | 广东摩德娜科技股份有限公司 | Furnace slow cooling area structure with cross section temperature difference capable of being reduced |
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2011
- 2011-10-24 CN CN 201110325378 patent/CN102374788B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4249895A (en) * | 1977-10-07 | 1981-02-10 | Welko Industriale S.P.A. | Kiln |
| CN200961998Y (en) * | 2006-05-31 | 2007-10-17 | 黄冈市华窑中瓷窑炉有限公司 | Routine porcelain roller channel stove emergency cooling device |
| CN201463605U (en) * | 2009-09-07 | 2010-05-12 | 洛伊热工工程(天津)有限公司 | High-temperature material gas ultra-rapid spray cooling unit |
| CN201575710U (en) * | 2009-12-08 | 2010-09-08 | 苏州工业园区姑苏科技有限公司 | Novel steel pipe roller-hearth furnace jet rapid cooling device |
| CN201772762U (en) * | 2010-09-08 | 2011-03-23 | 佛山市中窑窑业发展有限公司 | Energy saving cooling system for a roller kiln tail |
| CN202267372U (en) * | 2011-10-24 | 2012-06-06 | 广东摩德娜科技股份有限公司 | Furnace slow cooling area structure with cross section temperature difference capable of being reduced |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534884A (en) * | 2014-12-30 | 2015-04-22 | 广东摩德娜科技股份有限公司 | Novel circulating cooling system on sintering equipment |
| CN104907518A (en) * | 2015-07-02 | 2015-09-16 | 东北大学 | Slow-cooling temperature control device for stainless steel slabs and control method |
| CN109020481A (en) * | 2018-09-03 | 2018-12-18 | 合肥久新不锈钢厨具有限公司 | A kind of high intensity resistant ceramic tile and preparation method thereof |
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| CN102374788B (en) | 2013-10-16 |
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