CN104515400A - Indirect cooling device capable of reducing temperature difference of wide-section sintering equipment - Google Patents
Indirect cooling device capable of reducing temperature difference of wide-section sintering equipment Download PDFInfo
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- CN104515400A CN104515400A CN201410777787.2A CN201410777787A CN104515400A CN 104515400 A CN104515400 A CN 104515400A CN 201410777787 A CN201410777787 A CN 201410777787A CN 104515400 A CN104515400 A CN 104515400A
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- exchange tube
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- cooling device
- temperature difference
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Abstract
The invention provides an indirect cooling device capable of reducing a temperature difference of wide-section sintering equipment. The indirect cooling device comprises a kiln frame, a roller rod which is arranged on the kiln frame and is used for conveying a sintered product, a plurality of heat exchanging pipes which are located above the indirect cooling device, exhausting pipes which are communicated with air outlets of the heat exchanging pipes, and a draught fan which is connected with exhausting openings of the exhausting pipes, wherein the plurality of heat exchanging pipes are divided into groups and each group comprises a first heat exchanging pipe assembly and a second heat exchanging pipe assembly which are parallel and are arranged at interval; heat exchanging pipe air outlets of the first heat exchanging pipe assemblies and the second heat exchanging pipe assemblies are communicated with the exhausting pipes on the two sides of the kiln frame, and respective heat exchanging pipe air inlets are located at the central position for conveying the sintered product on the roller rod. With the adoption of the structure form, cold air is gradually heated by the heat exchanging pipes from an inlet to an outlet, and the temperature is the highest when the cold air reaches two side walls; the side walls of a kiln furnace can help to radiate heat and the temperatures on two sides in the kiln are balanced, so that the product defect problem caused by rapid cooling and large temperature difference is solved.
Description
Technical field
The present invention relates to ceramic firing heat exchange cooling technology field, refer more particularly to a kind of indirect cooling device reducing the wide cross section calcination equipment temperature difference.
Background technology
Fire product (as ceramic tile, household china, devitrified glass etc.), after high temperature sintering, to need to carry out cooling processing to it.If fire product in cooling procedure excessive velocities or non-uniform temperature, be just easy to occur cracking or deformation defect, cause product rejection.For this reason, product needed Slow cooling region (as about 573 DEG C, the SiO in ceramic product
2easily split because volume sharply changes), need indirectly to cool (namely cold wind does not directly contact with product).Traditional approach is arranged in parallel heat-exchange tube in firing above product, (namely heat-exchange tube is from air intake on the left of kiln frame for adjacent two heat-exchange tube cross inlets, another root is then from air intake on the right side of kiln frame), although the mode of above-mentioned cross inlet can accelerate the heat exchange efficiency firing product heat dissipation capacity and room air to a certain extent, but for cross section in calcination equipment, temperature is uneven, it is higher more to arrive cross section middle portion temperature, and the wider this trend in cross section is more obvious.In above-mentioned interlaced arrangement mode, because cold air inside is all by each root heat-exchange tube one end air intake other end air-out, cause both sides product temperature in cross section fall soon (both walls because of radiating surface large, faster than intermediate temperature drop), when progressively arriving central area cooling the slowest, this situation easily causes same large-sized sheet material (as large scale polishing floor tile) to there is the temperature difference to cause volume contraction uneven and distortion or cracking, and the single miscellaneous goods in both sides (as small tiles or household china) ftractures because cooling is too fast.Therefore, a kind of Homogeneous cooling mode that can reduce this calcination equipment cross section temperature difference how is found just to seem particularly important.
Summary of the invention
The object of the invention is to the deficiency overcoming prior art and structure, there is provided a kind of can realize firing product evenly, the structure of slowly heat radiation, that especially strengthen cross section zone line heat sinking function in this equipment, that section temperature difference can be reduced indirect cooling device.
For achieving the above object, technical scheme provided by the present invention is: a kind of indirect cooling device reducing the wide cross section calcination equipment temperature difference, comprise kiln frame, be arranged on this kiln frame for carrying the roller rod firing product, be positioned at this and fire many heat-exchange tubes above product, the exhaust column communicated with this heat-exchange tube air outlet and the blower fan be connected with this exhaust column exhaust outlet, many described heat-exchange tubes are grouped into the first heat-exchange tube assembly and the second heat-exchange tube assembly of two mutual parallel interval layouts, heat-exchange tube air outlet wherein in this first heat-exchange tube assembly and the second heat-exchange tube assembly communicates with the exhaust column of kiln frame both sides respectively and respective heat-exchange tube air inlet is arranged at the middle position of described conveying roller rod firing above product.
Further, a U-shaped structure is formed in interlaced arrangement between two adjacent in described first heat-exchange tube assembly and the second heat-exchange tube assembly heat-exchange tubes.
Again further, also comprise the link be fixedly installed on described kiln frame, wherein this link to be positioned at above described heat-exchange tube and by the joint that is provided with and corresponding being connected with each heat-exchange tube air inlet of lock screw.
Again more further, described heat-exchange tube infinitely can extend layout along with the longitudinal length direction of kiln frame, and described exhaust column can be divided into several independent pipeline sections independently controlling this heat-exchange tube air quantity or indefinite extension pipeline section that is corresponding and that be consistent in this kiln frame that longitudinally length direction infinitely extends layout simultaneously.
Compared with prior art, this programme is by the first heat-exchange tube assembly of the many heat-exchange tubes be positioned at above conveying roller rod product being grouped into two mutual parallel interval and arranging and the second heat-exchange tube assembly, and the heat-exchange tube air outlet wherein in this first heat-exchange tube assembly and the second heat-exchange tube assembly communicates with the exhaust column of kiln frame both sides respectively and respective heat-exchange tube air inlet is arranged at the middle position (namely kiln frame cross section is central) of conveying roller rod firing above product.After adopting this arrangement form, because its air inlet of all heat-exchange tubes is all positioned at the middle position (i.e. kiln frame cross section central authorities) of conveying roller rod firing above product, cold wind can be heated up in the process of outlet gradually by heat-exchange tube entrance, the highest to temperature during both walls place, and herein because kiln side wall assists heat radiation, two sides temperature in kiln can be balanced, therefore this structure science, rationally more, completely eliminate cross section temperature difference, not only heat exchange efficiency is high, cooling also evenly, solve the product defects problem caused greatly because cooling fast, the temperature difference.
Accompanying drawing explanation
Fig. 1 is perspective view of the present invention.
Fig. 2 is the main TV structure schematic diagram of Fig. 1.
Fig. 3 be in Fig. 1 A to partial enlargement structural representation.
In figure: 1-kiln frame, 2-conveying roller rod, 3-fires product, 4-many heat-exchange tubes, 41-first heat-exchange tube assembly, 42-second heat-exchange tube assembly, 5-exhaust column, 51-exhaust column exhaust outlet, 6-link, 61-joint, 62-lock screw, 7-U type structure.
Detailed description of the invention
Below in conjunction with specific embodiment, the invention will be further described:
Shown in accompanying drawing 1 to 3, a kind of indirect cooling device reducing the wide cross section calcination equipment temperature difference described in the present embodiment, comprise kiln frame 1, be arranged on this kiln frame 1 for carry fire product 3 roller rod 2, be positioned at that this fires many heat-exchange tubes 4 above product 3, the exhaust column 5 that communicates with this heat-exchange tube air outlet and the blower fan (not shown) be connected with this exhaust column exhaust outlet 51.Above-mentioned many described heat-exchange tubes 4 are grouped into the first heat-exchange tube assembly 41 and the second heat-exchange tube assembly 42 that two mutual parallel interval are arranged, the heat-exchange tube air outlet wherein in this first heat-exchange tube assembly 41 and the second heat-exchange tube assembly 42 communicates with the exhaust column 5 of kiln frame 1 both sides respectively and respective heat-exchange tube air inlet is arranged at the middle position (namely kiln frame cross section is central) of conveying roller rod 2 firing above product 3.
Shown in attached Fig. 1 and 2, further in order to improve heat exchange efficiency and reduce section temperature difference, form a U-shaped structure 7 in interlaced arrangement between every two heat-exchange tubes adjacent in above-mentioned first heat-exchange tube assembly 41 and the second heat-exchange tube assembly 42.
Again see shown in accompanying drawing 1 and 3, be fixed on kiln frame 1 in order to what make that the air inlet of heat-exchange tube can be stable, also comprise one in this programme and be fixedly installed on link 6 on kiln frame 1, wherein this link 6 to be positioned at above above-mentioned heat-exchange tube 4 and by the joint 61 that is provided with fastening with each heat-exchange tube air inlet be connected (namely being lock onto corresponding for each heat-exchange tube air inlet on corresponding joint 61 by lock screw 62) with lock screw 62 correspondence.
It should be noted that in addition, heat-exchange tube 4 in this programme infinitely can extend layout along with the longitudinal length direction of kiln frame 1, and corresponding above-mentioned exhaust column 5 can be divided into several independent pipeline sections independently controlling this heat-exchange tube 4 air quantity or indefinite extension pipeline section that is corresponding and that be consistent in this kiln frame 1 that longitudinally length direction infinitely extends layout.
In sum, after this programme adopts this kind of arrangement form, to fire above product and in the middle position of equipment cross section because its air inlet of all heat-exchange tubes is all positioned at, therefore can well the burned product being in middle position be cooled, simultaneously because above-mentioned heat-exchange tube is divided into two groups of spaced and parallel layouts and the arrangement form that air outlet communicates with the exhaust column of kiln frame both sides respectively, therefore the heat exchange of whole burned product can be made more even, and heat exchange efficiency is also more effective.
The examples of implementation of the above are only the preferred embodiment of the present invention, not limit practical range of the present invention with this, therefore the change that all shapes according to the present invention, principle are done, all should be encompassed in protection scope of the present invention.
Claims (4)
1. one kind can be reduced the indirect cooling device of the wide cross section calcination equipment temperature difference, comprise kiln frame (1), be arranged at the conveying roller rod (2) for burnt product (3) on this kiln frame (1), be positioned at the many heat-exchange tubes (4) of this burnt product (3) top, the exhaust column (5) communicated with this heat-exchange tube air outlet and the blower fan be connected with this exhaust column exhaust outlet (51), it is characterized in that: many described heat-exchange tubes (4) are grouped into the first heat-exchange tube assembly (41) and the second heat-exchange tube assembly (42) of two mutual parallel interval layouts, heat-exchange tube air outlet wherein in this first heat-exchange tube assembly (41) and the second heat-exchange tube assembly (42) communicates with the exhaust column (5) of kiln frame (1) both sides respectively and respective heat-exchange tube air inlet is arranged at the middle position of upper burnt product (3) top of described conveying roller rod (2).
2. a kind of indirect cooling device reducing the wide cross section calcination equipment temperature difference according to claim 1, is characterized in that: form a U-shaped structure (7) in interlaced arrangement between two heat-exchange tubes adjacent in described first heat-exchange tube assembly (41) and the second heat-exchange tube assembly (42).
3. a kind of indirect cooling device reducing the wide cross section calcination equipment temperature difference according to claim 1 and 2, it is characterized in that: also comprise the link (6) be fixedly installed on described kiln frame (1), wherein this link (6) is positioned at described heat-exchange tube (4) top and being connected with each heat-exchange tube air inlet by the joint (61) that is provided with and lock screw (62) correspondence.
4. a kind of indirect cooling device reducing the wide cross section calcination equipment temperature difference according to claim 1 and 2, it is characterized in that: described heat-exchange tube (4) infinitely can extend layout along with the longitudinal length direction of kiln frame (1), described exhaust column (5) can be divided into several independent pipeline sections independently controlling this heat-exchange tube (4) air quantity or indefinite extension pipeline section that is corresponding and that be consistent in this kiln frame (1) that longitudinally length direction infinitely extends layout simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410777787.2A CN104515400B (en) | 2014-12-17 | 2014-12-17 | A kind of indirect cooling device reducing the wide cross section calcination equipment temperature difference |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410777787.2A CN104515400B (en) | 2014-12-17 | 2014-12-17 | A kind of indirect cooling device reducing the wide cross section calcination equipment temperature difference |
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| Publication Number | Publication Date |
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| CN104515400A true CN104515400A (en) | 2015-04-15 |
| CN104515400B CN104515400B (en) | 2016-09-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107906950A (en) * | 2017-12-28 | 2018-04-13 | 洛阳北玻硅巢装备技术有限公司 | One kind fires foamed ceramic slow cooling roller kilns |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002299011A (en) * | 2001-03-29 | 2002-10-11 | Kyocera Corp | Ceramic heater and wafer-heating device using the same |
| CN2581923Y (en) * | 2002-12-06 | 2003-10-22 | 湖南丰业科技有限责任公司 | Indirect cooling structure for air kiln outlet mouth |
| CN102809284A (en) * | 2012-03-06 | 2012-12-05 | 湖北京华陶瓷科技有限公司 | Energy-saving type low-temperature-difference ultra-wide tunnel calcining kiln |
| CN102374788B (en) * | 2011-10-24 | 2013-10-16 | 广东摩德娜科技股份有限公司 | Furnace slow-cooling area structure capable of shrinking cross-sectional temperature difference |
| CN204388623U (en) * | 2014-12-17 | 2015-06-10 | 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 |
-
2014
- 2014-12-17 CN CN201410777787.2A patent/CN104515400B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002299011A (en) * | 2001-03-29 | 2002-10-11 | Kyocera Corp | Ceramic heater and wafer-heating device using the same |
| CN2581923Y (en) * | 2002-12-06 | 2003-10-22 | 湖南丰业科技有限责任公司 | Indirect cooling structure for air kiln outlet mouth |
| CN102374788B (en) * | 2011-10-24 | 2013-10-16 | 广东摩德娜科技股份有限公司 | Furnace slow-cooling area structure capable of shrinking cross-sectional temperature difference |
| CN102809284A (en) * | 2012-03-06 | 2012-12-05 | 湖北京华陶瓷科技有限公司 | Energy-saving type low-temperature-difference ultra-wide tunnel calcining kiln |
| CN204388623U (en) * | 2014-12-17 | 2015-06-10 | 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107906950A (en) * | 2017-12-28 | 2018-04-13 | 洛阳北玻硅巢装备技术有限公司 | One kind fires foamed ceramic slow cooling roller kilns |
| CN107906950B (en) * | 2017-12-28 | 2024-01-30 | 洛阳北玻轻晶石技术有限公司 | Slow cooling roller kiln for firing foamed ceramics |
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| Publication number | Publication date |
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| CN104515400B (en) | 2016-09-14 |
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