CN210464085U - Protective atmosphere preheating device of energy-saving sintering furnace - Google Patents
Protective atmosphere preheating device of energy-saving sintering furnace Download PDFInfo
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- CN210464085U CN210464085U CN201921473528.5U CN201921473528U CN210464085U CN 210464085 U CN210464085 U CN 210464085U CN 201921473528 U CN201921473528 U CN 201921473528U CN 210464085 U CN210464085 U CN 210464085U
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Abstract
The utility model relates to an energy-saving fritting furnace protective atmosphere preheating device, its technical essential is: the annular preheating cylinder comprises an annular preheating cylinder and a heat preservation layer, wherein the annular preheating cylinder is sleeved on the outer side of a heating device of the outer wall of a furnace tube of a sintering furnace, the heat preservation layer is wrapped on the periphery of the annular preheating cylinder, annular plugging plates are arranged at two ends of the annular preheating cylinder respectively, an air inlet pipe is arranged at one end of the annular plugging plate, an air outlet pipe is arranged at the other end of the annular plugging plate, an air channel with a serpentine cross section is arranged in an inner cavity of the annular preheating cylinder, one end of the air channel is connected with the air inlet pipe, the other end of the air channel is connected with. The utility model discloses utilize sintering furnace self sintering heating device's heat to realize reaching energy-conserving purpose to the preheating of protective atmosphere on the one hand, on the other hand guarantees sintering product quality, prolongs the life of components and parts in the stove.
Description
Technical Field
The utility model relates to a fritting furnace auxiliary device, especially an energy-saving fritting furnace protective atmosphere preheating device.
Background
When sintering production is carried out, the sintering gas pipeline directly penetrates through the furnace wall to introduce sintering gas into the sintering furnace, and the sintering gas has a protection or reduction function on a sintered product. But has the following disadvantages:
1. the temperature of the sintering gas is too different from the temperature in the furnace, so that temperature transformation impact is caused to components and the like in the furnace after the sintering gas is introduced into the furnace, and the service life of the components and the like in the furnace is easily shortened; 2. because the temperature of the sintering furnace is high and the temperature of supplied gas is low, the temperature imbalance of the sintering gas after entering the furnace can not well complete the protection function or the reduction function; 3. the temperature difference also causes large temperature gradient in the furnace during ventilation, which affects the product performance and the yield.
Disclosure of Invention
The utility model aims at providing an overcome energy-saving fritting furnace protective atmosphere preheating device of above-mentioned shortcoming, the heat that utilizes fritting furnace self sintering heating device realizes reaching energy-conserving purpose on the one hand to protective atmosphere's preheating, and sintering product quality is guaranteed to on the other hand, prolongs the life of interior components and parts of stove.
The technical scheme of the utility model is that:
the utility model provides an energy-saving fritting furnace protective atmosphere preheating device which the technical essential is: the annular preheating cylinder comprises an annular preheating cylinder and a heat preservation layer, wherein the annular preheating cylinder is sleeved on the outer side of a heating device of the outer wall of a furnace tube of a sintering furnace, the heat preservation layer is wrapped on the periphery of the annular preheating cylinder, annular plugging plates are arranged at two ends of the annular preheating cylinder respectively, an air inlet pipe is arranged at one end of the annular plugging plate, an air outlet pipe is arranged at the other end of the annular plugging plate, a gas channel with a cross section in a serpentine shape is arranged in an inner cavity of the annular preheating cylinder, one end of the gas channel is connected with the air inlet pipe, the other end of the gas channel is connected with the.
According to the protective atmosphere preheating device of the energy-saving sintering furnace, a plurality of annular partition plates I are uniformly arranged between two ends of the inner surface of the outer annular wall of the annular preheating cylinder, the inner diameter of each annular partition plate I is larger than the diameter of the inner annular wall of the annular preheating cylinder, a plurality of annular partition plates II are uniformly arranged between two ends of the inner surface of the inner annular wall of the annular preheating cylinder, the outer diameter of each annular partition plate II is smaller than the diameter of the outer annular wall of the annular preheating cylinder, the central lines of the annular preheating cylinder, the annular partition plates I and the annular partition plates II are overlapped, and the annular partition plates I and the annular partition plates II are alternately arranged at intervals along the central line of the annular preheating cylinder to form the gas channel.
According to the protective atmosphere preheating device of the energy-saving sintering furnace, the heat absorbing fins are annular, the number of the heat absorbing fins is multiple, and the heat absorbing fins are uniformly distributed along the central line of the annular preheating cylinder.
The utility model has the advantages that:
the utility model discloses preheat sintering gas in the fritting furnace, the gas after preheating gets into the fritting furnace boiler tube through original inlet port, realizes atmosphere protection or reducing action. The sintering gas absorbs the outward radiation temperature of the heating device in the furnace, after entering the furnace tube, the sintering gas does not generate large temperature difference, the uniformity of the temperature in the sintering process is obviously improved, the product quality is ensured, meanwhile, the temperature stability of the gas in the furnace is high, and the products and components in the furnace can be better protected.
Drawings
FIG. 1 is a diagram illustrating the usage of the present invention;
fig. 2 is a sectional view taken along line a-a of fig. 1.
In the figure: 1. the device comprises an air inlet pipe, 2 annular preheating cylinders, 3 insulating layers, 4 annular partition plates I, 5 annular partition plates II, 6 gas channels, 7 heat absorption fins, 8 air outlet pipes, 9 air inlets, 10 furnace pipes, 11 support columns, 12 heating devices and 13 sintering furnaces.
Detailed Description
As shown in fig. 1 and 2, the energy-saving type preheating device for the protective atmosphere of the sintering furnace comprises an annular preheating cylinder 2 which is sleeved outside a heating device 12 on the outer wall of the furnace tube of the sintering furnace, and an insulating layer 3 which is coated on the periphery of the annular preheating cylinder 2. Annular shutoff board is equipped with respectively at 2 both ends of annular preheating section of thick bamboo, and wherein the annular shutoff board of one end is equipped with intake pipe 1, and the annular shutoff board of the other end is equipped with outlet duct 8, be equipped with transversal snakelike gas passage 6 of personally submitting in the inner chamber of annular preheating section of thick bamboo 2, 6 one end of gas passage are connected with intake pipe 1, and the other end is connected with outlet duct 8, the interior rampart surface of annular preheating section of thick bamboo 2 evenly is equipped with heat absorption fin 7.
In this embodiment, a plurality of annular partition plates i 4 are uniformly arranged between two ends of the inner surface of the outer annular wall of the annular preheating cylinder 2, the inner diameter of each annular partition plate i 4 is larger than the diameter of the inner annular wall of the annular preheating cylinder 2, a plurality of annular partition plates ii 5 are uniformly arranged between two ends of the inner surface of the inner annular wall of the annular preheating cylinder 2, the outer diameter of each annular partition plate ii 5 is smaller than the diameter of the outer annular wall of the annular preheating cylinder 2, the center lines of the annular preheating cylinder 2, the annular partition plates i 4 and the annular partition plates ii 5 are overlapped, and the annular partition plates i 4 and the annular partition plates ii 5 are alternately arranged at intervals along the center line of the annular preheating cylinder 2 to form the gas passage 6. The heat absorbing fins 7 are annular, are multiple in number and are uniformly distributed along the central line of the annular preheating cylinder 2.
Before use, the annular preheating cylinder 2 is supported in the sintering furnace 13 by using the supporting columns 11, the annular preheating cylinder 2 is sleeved outside a heating device 12 (a spiral heating pipe) on the outer wall of the furnace tube of the sintering furnace, one end of the air inlet pipe 1 penetrates through the outer wall of the sintering furnace 13 and is connected with an air supply pipeline, and one end of the air outlet pipe 8 penetrates through the outer wall of the sintering furnace 13 and is connected with an air inlet 9 on the end cover of the furnace tube 10. During operation, sintering gas enters the inner cavity of the annular preheating cylinder 2 through the gas inlet pipe 1, passes through the serpentine gas channel 6, is guided to the gas inlet 9 on the end cover of the furnace tube 10 through the gas outlet pipe 8, and enters the furnace tube 10. The heating device 12 on the outer wall of the furnace tube of the sintering furnace is used for ensuring the sintering temperature, and meanwhile, the radiant heat diffused to the outside is absorbed by the annular preheating cylinder 2 and is transferred to the sintering gas, so that the sintering gas is preheated, and the heat energy is fully utilized.
Claims (3)
1. The utility model provides an energy-saving fritting furnace protective atmosphere preheating device which characterized in that: the annular preheating cylinder comprises an annular preheating cylinder and a heat preservation layer, wherein the annular preheating cylinder is sleeved on the outer side of a heating device of the outer wall of a furnace tube of a sintering furnace, the heat preservation layer is wrapped on the periphery of the annular preheating cylinder, annular plugging plates are arranged at two ends of the annular preheating cylinder respectively, an air inlet pipe is arranged at one end of the annular plugging plate, an air outlet pipe is arranged at the other end of the annular plugging plate, a gas channel with a cross section in a serpentine shape is arranged in an inner cavity of the annular preheating cylinder, one end of the gas channel is connected with the air inlet pipe, the other end of the gas channel is connected with the.
2. The energy-saving sintering furnace protective atmosphere preheating device according to claim 1, characterized in that: the annular preheating cylinder is characterized in that a plurality of annular partition plates I are uniformly arranged between two ends of the inner surface of the outer annular wall of the annular preheating cylinder, the inner diameter of each annular partition plate I is larger than the diameter of the inner annular wall of the annular preheating cylinder, a plurality of annular partition plates II are uniformly arranged between two ends of the inner surface of the inner annular wall of the annular preheating cylinder, the outer diameter of each annular partition plate II is smaller than the diameter of the outer annular wall of the annular preheating cylinder, the central lines of the annular preheating cylinder, the annular partition plates I and the annular partition plates II are overlapped, and the annular partition plates I and the annular partition plates II are alternately arranged at intervals along the central line of the annular preheating cylinder to form.
3. The energy-saving sintering furnace protective atmosphere preheating device according to claim 1, characterized in that: the heat absorption fins are annular, the number of the heat absorption fins is multiple, and the heat absorption fins are uniformly distributed along the central line of the annular preheating cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921473528.5U CN210464085U (en) | 2019-09-06 | 2019-09-06 | Protective atmosphere preheating device of energy-saving sintering furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921473528.5U CN210464085U (en) | 2019-09-06 | 2019-09-06 | Protective atmosphere preheating device of energy-saving sintering furnace |
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| CN210464085U true CN210464085U (en) | 2020-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921473528.5U Active CN210464085U (en) | 2019-09-06 | 2019-09-06 | Protective atmosphere preheating device of energy-saving sintering furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113465393A (en) * | 2021-05-31 | 2021-10-01 | 河北恒博新材料科技股份有限公司 | Novel IGZO atmosphere preheats fritting furnace |
-
2019
- 2019-09-06 CN CN201921473528.5U patent/CN210464085U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113465393A (en) * | 2021-05-31 | 2021-10-01 | 河北恒博新材料科技股份有限公司 | Novel IGZO atmosphere preheats fritting furnace |
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