CN110567282A - Kiln with water cooling structure - Google Patents
Kiln with water cooling structure Download PDFInfo
- Publication number
- CN110567282A CN110567282A CN201910934195.XA CN201910934195A CN110567282A CN 110567282 A CN110567282 A CN 110567282A CN 201910934195 A CN201910934195 A CN 201910934195A CN 110567282 A CN110567282 A CN 110567282A
- Authority
- CN
- China
- Prior art keywords
- water
- cooling
- pipe
- kiln
- flange
- Prior art date
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D9/00—Cooling of furnaces or of charges therein
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D9/00—Cooling of furnaces or of charges therein
- F27D2009/0002—Cooling of furnaces
- F27D2009/001—Cooling of furnaces the cooling medium being a fluid other than a gas
- F27D2009/0013—Cooling of furnaces the cooling medium being a fluid other than a gas the fluid being water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D9/00—Cooling of furnaces or of charges therein
- F27D2009/0002—Cooling of furnaces
- F27D2009/0018—Cooling of furnaces the cooling medium passing through a pattern of tubes
- F27D2009/0021—Cooling of furnaces the cooling medium passing through a pattern of tubes with the parallel tube parts close to each other, e.g. a serpentine
- F27D2009/0024—Cooling of furnaces the cooling medium passing through a pattern of tubes with the parallel tube parts close to each other, e.g. a serpentine with contiguous tubes, which may be separately welded one to the other
Abstract
The invention discloses a kiln with a water cooling structure, which comprises a kiln body and the water cooling structure, wherein the water cooling structure comprises a water inlet pipe, a water outlet pipe and a plurality of water cooling pipes, each water cooling pipe penetrates through the kiln body, two ends of each water cooling pipe extend to the outer side of a kiln wall, the plurality of water cooling pipes are connected in series through joint pipes, the water cooling pipe at the head end is connected with the water inlet pipe, and the water cooling pipe at the tail end is connected with the water outlet pipe. According to the invention, a structure similar to a coil heat exchanger is formed by connecting a single water-cooling pipe in series, the water-cooling pipes are not connected in a furnace body, adjacent water-cooling pipes are connected outside the furnace body through connector pipes, and pipeline connection points are arranged outside the furnace body, so that the risk of water leakage in the furnace body is eliminated, and the structure is reliable; this structure is also more nimble than in integral heat exchanger, and the user can be based on the nimble method and the quantity of connecing that changes the water-cooled tube of actual cooling demand to this realizes the highest cooling efficiency, can change alone after the damage of single water-cooled tube, can not influence other water-cooled tubes and normally work, greatly reduced the maintenance cost.
Description
Technical Field
The invention relates to sintering equipment, in particular to a kiln with a water cooling structure.
background
the kiln is widely used for firing various industrial materials, and the main process flow of the product in the kiln is preheating, firing and cooling. Wherein, the temperature of drawing the kiln of product is an important technical indicator of roller kilns, if the temperature of drawing the kiln is too high, the product not only can have the risk of oxidizing, is unfavorable for going on of follow-up loading and unloading material moreover. The existing water cooling structure for the kiln mainly comprises two forms of jacket water cooling and heat exchange tube water cooling.
(1) The existing jacket water cooling structure mainly cools a hearth by arranging a cooling water interlayer around the hearth, and the flowing property of cooling water in the interlayer is poor, so that the heat exchange efficiency is not high, the cooling effect is not good, and the temperature of a product discharged from a kiln often cannot meet the requirement.
(2) The existing heat exchange tube water cooling structure is usually made into an integral heat exchanger, the heat in the furnace is absorbed through the heat exchanger so as to reduce the temperature in the furnace, and the flowing property of cooling water in the heat exchanger is stronger, so that the heat exchange performance is better than that of a jacket water cooling structure, but the temperature of the front section of a furnace cooling area generally reaches about 800 ℃, the heat exchanger is usually formed by welding a plurality of heat exchange tubes into a whole, and in the high-temperature environment, the welding part can generate cracks, so that the reliability of the integral heat exchanger is not high, and once a single heat exchange tube is damaged, the integral heat exchange tube needs to be replaced integrally.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art and provides a kiln with a water cooling structure, which has the advantages of good heat exchange effect, flexible and adjustable cooling, prevention of water leakage in a kiln body and low maintenance cost.
In order to solve the technical problems, the invention adopts the following technical scheme:
The utility model provides a kiln with water-cooling structure, includes furnace body and water-cooling structure, the water-cooling structure includes inlet tube, outlet pipe and many water-cooled tubes, and each water-cooled tube runs through on the furnace body, and both ends extend to the outside of oven, and many water-cooled tubes concatenate through the joint pipe head and the tail, and the water-cooled tube and the water piping connection of head end, the water-cooled tube and the play water piping connection of tail end.
As a further improvement of the technical scheme, the water-cooling pipe is a seamless steel pipe.
As a further improvement of the above technical solution, the joint pipe is a corrugated pipe.
As a further improvement of the technical scheme, a flange sealing structure is arranged between each end of the water-cooling pipe and the furnace wall, the flange sealing structure comprises a first flange and a second flange, the first flange is fixed on the outer side of the furnace wall and connected with the second flange through bolts, the water-cooling pipe penetrates through the first flange and the second flange, and a sealing gasket is arranged between the first flange and the second flange.
As a further improvement of the technical scheme, the inner walls of the first flange and the second flange are provided with sealing rings.
as a further improvement of the technical scheme, the end part of the water-cooling pipe is connected with the joint pipe through internal and external threads.
As a further improvement of the technical scheme, the water-cooled tube at the head end is connected with the water inlet tube through a corrugated tube, and the water-cooled tube at the tail end is connected with the water outlet tube through a corrugated tube.
As a further improvement of the technical scheme, the water cooling structures are arranged in two groups, one group is arranged at the upper part of the furnace body, the other group is arranged at the lower part of the furnace body, and the number of the water cooling pipes in the water cooling structure at the upper part is more than that of the water cooling pipes in the water cooling structure at the lower part.
As a further improvement of the technical scheme, along the feeding direction of the furnace body, the arrangement density of the upstream water-cooling tubes is greater than that of the downstream water-cooling tubes.
As a further improvement of the technical scheme, the water flow direction in the water cooling pipe is opposite to the feeding direction in the furnace body.
Compared with the prior art, the invention has the advantages that:
(1) According to the kiln with the water cooling structure, a structure similar to a coil heat exchanger is formed by the single water-cooling pipe in a cluster mode, the water-cooling pipe is not provided with a joint in the kiln body, and the adjacent water-cooling pipes are connected outside the kiln body through the joint pipe, so that the connecting points of the pipelines of the structure are all outside the kiln body, the risk of water leakage in the kiln body is eliminated (the risk of water leakage exists when the joint exists), and the structure is reliable; in addition, this structure is also more nimble than in integral heat exchanger, and the user can be according to the nimble method and the quantity of changing the water-cooled tube of actually cooling demand to this realizes the highest cooling efficiency, can change alone after the damage of single water-cooled tube, can not influence other water-cooled tubes and normally work, greatly reduced the maintenance cost.
(2) According to the kiln with the water cooling structure, the water cooling pipe is a seamless steel pipe, preferably a straight seamless steel pipe, so that the water cooling pipe is prevented from being deformed and damaged under the high-temperature action in the kiln body, no joint or welding line exists, cracks are prevented from being generated due to the influence of high temperature, water leakage is finally caused, the structure is stable and reliable, materials in the kiln body cannot be contacted with water during sintering, and the sintering quality is seriously influenced by other people.
Drawings
Fig. 1 is a schematic top view of the present invention.
Fig. 2 is a side view of the present invention.
The reference numerals in the figures denote:
1. A furnace body; 11. a furnace wall; 2. a water inlet pipe; 3. a water outlet pipe; 4. a water-cooled tube; 5. a joint pipe; 61. a first flange; 62. a second flange; 63. a bolt; 64. and a gasket.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples of the specification.
As shown in fig. 1 and fig. 2, the kiln with water cooling structure of this embodiment, including furnace body 1 and water cooling structure, water cooling structure includes inlet tube 2, outlet pipe 3 and many water-cooled tubes 4, each water-cooled tube 4 runs through on furnace body 1, and both ends extend to the outside of oven 11, many water-cooled tubes 4 concatenate through joint pipe 5 end to end, the water-cooled tube 4 of head end is connected with inlet tube 2, the water-cooled tube 4 of tail end is connected with outlet pipe 3, thus, the cooling water gets into from inlet tube 2, water-cooled tube 4 along the head end always flows through each water-cooled tube 4 in the middle of, until the water-cooled tube 4 of tail end, flow out from outlet pipe 3 at last, the cooling water is at the in-process that flows, take away the heat in the furnace body 1, thereby play the effect of cooling to the material. Because the water-cooling pipe 4 directly wears to establish on furnace body 1, direct and the inside heat contact of furnace body 1 to can not only cool off fast, and the cooling effect is good. Moreover, a structure similar to a coil heat exchanger is formed by a single water-cooling tube 4 through group strings, the water-cooling tubes 4 are not connected in the furnace body 1, and adjacent water-cooling tubes 4 are connected outside the furnace body 1 through connector tubes 5, so that the structural pipeline connecting points are all outside the furnace body 1, the risk of water leakage in the furnace body 1 is eliminated (the risk of water leakage is caused by the presence of the connectors), and the structure is reliable. In addition, this structure is also more nimble than in integral heat exchanger, and the user can be according to the nimble method and the quantity of changing the water-cooled tube 4 of actually cooling demand to this realizes the highest cooling efficiency, can change alone after single water-cooled tube 4 damages, can not influence other water-cooled tubes and normally work, does not have greatly reduced the maintenance cost.
In this embodiment, the water-cooling pipe 4 is a seamless steel pipe, preferably a straight seamless steel pipe, so as to ensure that the water-cooling pipe 4 is not deformed and damaged under the high temperature action in the furnace body 1, and no joint or welding seam exists, so that no crack is generated under the influence of high temperature, and finally water leakage is caused, and the structure is stable and reliable. The materials in the furnace body 1 can not contact with water during sintering, and whether the materials can have great influence on the sintering quality, so that the seamless steel pipes and the steel pipes in the embodiment are connected outside the furnace body 1, and the condition of water leakage in the furnace body 1 is avoided.
In this embodiment, the joint pipe 5 is a flexible corrugated pipe, and the corrugated pipe is deformable, so that the connection is not affected by the arrangement of the water cooling pipe 4, and the connection is flexible and convenient. The end of each water-cooling pipe 4 is connected with the corrugated pipe through internal and external threads. In a similar way, the water-cooled tube 4 at the head end is connected with the water inlet pipe 2 through a corrugated pipe, and the water-cooled tube 4 at the tail end is connected with the water outlet pipe 3 through a corrugated pipe.
In this embodiment, a flange sealing structure is arranged between each end of the water-cooling pipe 4 and the furnace wall 11, the flange sealing structure includes a first flange 61 and a second flange 62, the first flange 61 is fixed at the outer side of the furnace wall 11, the first flange 61 and the second flange 62 are connected through a bolt 63, the water-cooling pipe 4 passes through the first flange 61 and the second flange 62, and a sealing gasket 64 is arranged between the first flange 61 and the second flange 62, which is a first seal. The inner wall of the first flange 61 is provided with a sealing ring, which is a second seal, the inner wall of the second flange 62 is provided with a sealing ring, which is a third seal, and the three seals can ensure that the sealing performance of the through hole on the furnace body 1 for the water supply cold pipe 4 to pass through is good, and the phenomenon of air leakage can not occur. And the structure is detachable, so that the water-cooled tube 4 is convenient to detach and replace even if damaged.
In this embodiment, the water cooling structure sets up two sets ofly, and a set ofly locates the upper portion of furnace body 1, and a set ofly locates the lower part of furnace body 1, and every group water-cooled tube 4 quantity is the same, and two rows of arrangements about every group water-cooled tube 4 becomes, and the upper row is arranged with the tube dislocation arrangement of arranging down, and the rivers in the water-cooled tube 4 are crisscross to flow in furnace body 1, strengthens the heat transfer effect. It should be noted that, in addition to the present embodiment, the arrangement of the water-cooling tubes 4 may be arranged according to the distribution of heat in the furnace body 1. Because the heat can go up in the furnace body 1, consequently, the heat of upper portion is many in the furnace body 1, for this reason, arrange cold water pipe 4 and arrange, 4 counts of water-cooling pipe in the water-cooling structure of upper portion are more than 4 counts of water-cooling pipe in the water-cooling structure of lower part, and in the same way, along furnace body 1 direction of feed, the temperature of furnace end (feed inlet) one end is higher than the temperature of furnace tail (discharge gate), for this reason, the water-cooling pipe 4 arrangement density of upper reaches is greater than the arrangement density of water-cooling pipe 4 of low reaches, water-cooling pipe 4 of rational arrangement, the improvement radiating effect of maximize, reach optimal radiating efficiency.
In this embodiment, the water flow direction in the water-cooled tubes 4 is opposite to the feeding direction in the furnace body 1 (as shown by the arrow in fig. 1). Cooling water enters from the furnace tail and exits from the furnace head, the feeding direction of the cooling water is opposite to that of materials in the furnace body 1, countercurrent heat exchange is formed, and heat exchange efficiency is improved.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the invention, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.
Claims (10)
1. A kiln with a water cooling structure is characterized in that: including furnace body (1) and water-cooling structure, water-cooling structure includes inlet tube (2), outlet pipe (3) and many water-cooled tubes (4), and each water-cooled tube (4) run through on furnace body (1), and both ends extend to the outside of oven (11), and many water-cooled tubes (4) concatenate through joint pipe (5) end to end, and water-cooled tube (4) and inlet tube (2) of head end are connected, and water-cooled tube (4) and outlet pipe (3) of tail end are connected.
2. The kiln with the water-cooling structure as recited in claim 1, wherein: the water-cooling pipe (4) is a seamless steel pipe.
3. The kiln with the water-cooling structure as recited in claim 1, wherein: the joint pipe (5) is a corrugated pipe.
4. The kiln with the water-cooling structure as recited in any one of claims 1 to 3, wherein: be equipped with flange seal structure between every end of water-cooling pipe (4) and oven (11), flange seal structure includes first flange (61) and second flange (62), first flange (61) are fixed in the outside of oven (11), first flange (61) and second flange (62) are connected through bolt (63), water-cooling pipe (4) all pass first flange (61) and second flange (62), be equipped with sealed pad (64) between first flange (61) and second flange (62).
5. The kiln with the water-cooling structure as recited in claim 4, wherein: and sealing rings are arranged on the inner walls of the first flange (61) and the second flange (62).
6. The kiln with the water-cooling structure as recited in any one of claims 1 to 3, wherein: the end part of the water-cooling pipe (4) is connected with the joint pipe (5) through internal and external threads.
7. The kiln with the water-cooling structure as recited in any one of claims 1 to 3, wherein: the water-cooled tube (4) at the head end is connected with the water inlet tube (2) through a corrugated tube, and the water-cooled tube (4) at the tail end is connected with the water outlet tube (3) through a corrugated tube.
8. The kiln with the water-cooling structure as recited in any one of claims 1 to 3, wherein: the water cooling structure is provided with two groups, one group is arranged on the upper part of the furnace body (1), the other group is arranged on the lower part of the furnace body (1), and the number of the water cooling pipes (4) in the water cooling structure on the upper part is more than that of the water cooling pipes (4) in the water cooling structure on the lower part.
9. The kiln with the water-cooling structure as recited in any one of claims 1 to 3, wherein: along the feeding direction of the furnace body (1), the arrangement density of the upstream water-cooling tubes (4) is greater than that of the downstream water-cooling tubes (4).
10. The kiln with the water-cooling structure as recited in any one of claims 1 to 3, wherein: the water flow direction in the water-cooling pipe (4) is opposite to the feeding direction in the furnace body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910934195.XA CN110567282A (en) | 2019-09-29 | 2019-09-29 | Kiln with water cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910934195.XA CN110567282A (en) | 2019-09-29 | 2019-09-29 | Kiln with water cooling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110567282A true CN110567282A (en) | 2019-12-13 |
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ID=68783242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910934195.XA Pending CN110567282A (en) | 2019-09-29 | 2019-09-29 | Kiln with water cooling structure |
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| Country | Link |
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| CN (1) | CN110567282A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113720162A (en) * | 2021-09-08 | 2021-11-30 | 洛阳君江建材科技有限公司 | Water-cooled sodium silicate kiln |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK150254C (en) * | 1977-10-11 | 1987-09-28 | Demag Ag Mannesmann | CONTAINER FOR METAL MELT OVEN, ISAER ARC |
| CN201251381Y (en) * | 2008-06-19 | 2009-06-03 | 西安航天华威化工生物工程有限公司 | Double-insulation leakproof tube bank |
| CN201593925U (en) * | 2009-12-28 | 2010-09-29 | 常州天合光能有限公司 | Device for cooling sintering furnace of solar battery |
| CN207006855U (en) * | 2017-07-12 | 2018-02-13 | 吕国鑫 | A kind of kiln |
| CN110173712A (en) * | 2019-06-26 | 2019-08-27 | 国电龙源节能技术有限公司 | Air-water heat exchanger with perpendicular fins |
-
2019
- 2019-09-29 CN CN201910934195.XA patent/CN110567282A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK150254C (en) * | 1977-10-11 | 1987-09-28 | Demag Ag Mannesmann | CONTAINER FOR METAL MELT OVEN, ISAER ARC |
| CN201251381Y (en) * | 2008-06-19 | 2009-06-03 | 西安航天华威化工生物工程有限公司 | Double-insulation leakproof tube bank |
| CN201593925U (en) * | 2009-12-28 | 2010-09-29 | 常州天合光能有限公司 | Device for cooling sintering furnace of solar battery |
| CN207006855U (en) * | 2017-07-12 | 2018-02-13 | 吕国鑫 | A kind of kiln |
| CN110173712A (en) * | 2019-06-26 | 2019-08-27 | 国电龙源节能技术有限公司 | Air-water heat exchanger with perpendicular fins |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113720162A (en) * | 2021-09-08 | 2021-11-30 | 洛阳君江建材科技有限公司 | Water-cooled sodium silicate kiln |
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Application publication date: 20191213 |