CN217058336U - Atmosphere protection four pusher kiln's degrease section anti-cracking circulating air structure - Google Patents
Atmosphere protection four pusher kiln's degrease section anti-cracking circulating air structure Download PDFInfo
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- CN217058336U CN217058336U CN202220686120.1U CN202220686120U CN217058336U CN 217058336 U CN217058336 U CN 217058336U CN 202220686120 U CN202220686120 U CN 202220686120U CN 217058336 U CN217058336 U CN 217058336U
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Abstract
The utility model discloses a degreasing section of four push pedal kilns of atmosphere protection prevents circulated air structure that ftractures, including four push pedal kilns, kiln chamber is seted up to four push pedal kilns the inner, and the kiln intracavity vertically is provided with four passageways, the heating chamber has been seted up in four push pedal kilns of kiln chamber bottom, the fixed heating wire that is provided with in inner in heating chamber, the inside fixed bottom intake pipe that is provided with in bottom of four push pedal kilns, side air inlet chamber has been seted up to one side inner of four push pedal kilns, the fixed circulating fan that is provided with in top in side air inlet chamber, four push pedal kilns one side run through and have seted up kiln side air inlet, and the inside top in kiln chamber is provided with the box of crossing gas at the top and the box of giving vent to anger at the top, baffle in the middle of box bottom fixedly connected with is given to anger at the top, gas box bottom one side is provided with the mesh board at the top. The structure of the utility model can be divided into three paths to admit air into the kiln cavity, so that the four-push plate kiln cavity can be uniformly distributed with the heat by admitting air, and the volatilization of the water and the PVA in the product can be facilitated to avoid the cracking of the product.
Description
Technical Field
The utility model relates to a pushed slab kiln structure field especially relates to a circulation wind structure of ftractureing is prevented to degrease section of four pushed slab kilns of atmosphere protection.
Background
The nitrogen atmosphere protection pushed slab kiln is sintering equipment in the production process of magnetic materials. The circulating glue discharging area of the nitrogen atmosphere protection pushed slab kiln starts from the inlet of the pushed slab kiln, the four pushed slab kiln generally has 8-16 circulating fans about 8-16 meters, and the quantity is determined according to the performance of sintered products. After the product to be burnt enters the nitrogen kiln, the temperature is gradually increased, and when the temperature is about 100 ℃, the free moisture of the product begins to be discharged, and simultaneously, a small amount of PVA is volatilized. When the temperature is continuously increased to 250-350 ℃, PVA is decomposed, a large amount of gaseous decomposition products are discharged, when the temperature is increased to 400 ℃, the surface of a product begins to harden and an oxidation reaction occurs, the temperature is continuously increased to 600 ℃, all PVA is decomposed, gasified and discharged, and simultaneously most chloride in a pressed compact begins to be converted into oxide, which is called as a gel-discharging degreasing process. The portion of the kiln body used to accomplish this stage of the kiln is referred to as the recycle binder removal zone.
Only A way and B way of two way sintering air extraction pipeline of conventional two pusher kilns are in AB way the middle horizontal total area little can not produce temperature and atmosphere poor, novel four pusher kilns divide into A, B, C, D four ways as shown in figure 3, the circulated air is less through lower floor's tolerance in the outer C of air extraction pipeline extraction kiln and the D behind AB, there is obvious temperature difference, lead to not discharging PVA at whole in-process that comes unstuck, the temperature rises too fast and does not have the circulated air replacement when getting into the heating area after, lead to PVA to concentrate the decomposition, a large amount of decomposer gas is discharged, cause the product fracture, need improve prior art for this reason.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing an atmosphere protection four-push plate kiln degreasing section anti-cracking circulating air structure.
In order to realize the purpose, the utility model adopts the following technical scheme: an anti-cracking circulating air structure of a degreasing section of an atmosphere protection four-pusher kiln comprises a four-pusher kiln, wherein a kiln cavity is formed at the inner end of the four-pusher kiln, four channels are longitudinally arranged in the kiln cavity, a heating cavity is arranged in the four-pushed-slab kiln at the bottom end of the kiln cavity, an electric heating wire is fixedly arranged at the inner end of the heating cavity, a bottom air inlet pipe is fixedly arranged inside the bottom end of the four-pushed slab kiln, one end of the bottom air inlet pipe is communicated with the outer end, the other end of the bottom air inlet pipe is communicated with the inner end of the heating cavity, a side air inlet cavity is formed in the inner end of one side of the four-pusher kiln, a circulating fan is fixedly arranged at the top end of the side air inlet cavity, a kiln side air inlet is formed in one side of the four-pusher kiln close to the side air inlet cavity in a penetrating mode, the kiln side air inlet is communicated with the side air inlet cavity, the bottom end of the side air inlet cavity is communicated with the heating cavity, and one end of the heating cavity, which is far away from the side air inlet cavity, is communicated with the bottom of one side of the kiln cavity;
the top end in the kiln cavity is fixedly provided with a top air passing box body and a top air outlet box body, the top air passing box body and the top air outlet box body are tightly attached, the bottom end of the top air outlet box body is close to the middle baffle fixedly connected with the position of the top air passing box body, the end, far away from the top air outlet box body, of the top air passing box body is provided with an air inlet, the bottom end, near the top air outlet box body, of the top air passing box body is also provided with an air inlet, the bottom end, far away from the top air passing box body, of the top air outlet box body is provided with an air outlet, the upper side of the end, near the top air passing box body, of the top air outlet box body is in through connection with an air exhaust pipe, the top end of the air exhaust pipe penetrates through the top end of the four-push pedal kiln to the outside, a mesh plate is fixedly arranged at the position, near the air inlet, in the middle of the bottom end of the top air passing box body, and the middle baffle divides two groups of the four channels into a left group and a right group, and the bottom end of the kiln cavity between the two channels positioned on the same side is provided with an air inlet gap, and the bottom end of the air inlet gap is communicated with the heating cavity.
As a further description of the above technical solution:
the mesh plate is arranged at one end, far away from the kiln side air inlet, in the kiln cavity, and the bottom end of the mesh plate is connected with the bottom of the kiln cavity.
As a further description of the above technical solution:
the bottom height of the middle baffle is positioned on the upper middle part of the channel height.
As a further description of the above technical solution:
the top air passing box body is arranged into a hollow cuboid shape.
As a further description of the above technical solution:
the top air outlet box body is arranged into an isosceles trapezoid shape, the inner end of the top air outlet box body is also hollow, and the narrow end of the top air outlet box body is close to the top air outlet box body.
As a further description of the above technical solution:
the circulating fan body is arranged at the top of the four-pushed-slab kiln, and the working end of the circulating fan is positioned in the side air inlet cavity.
The utility model discloses following beneficial effect has:
the utility model discloses in, the air after the heating wire heating can divide three routes to enter the kiln intracavity, from passing through the twice gap of admitting air then pass and enter the kiln intracavity between four passageways all the way, get into from intracavity one side mesh board all the way, cross the gas box body from the top and get into the kiln chamber simultaneously and get into lower floor in the product through the middle baffle direction all the way, the product heating on four passageways is gaseous of replacement simultaneously, give vent to anger the box entering through the exhaust tube discharge PVA decomposer and moisture from the top, the structure that sets up like this makes kiln intracavity admit air and the heat spreads evenly, be favorable to in the product moisture and the evaporation of PVA avoid the fracture of product.
Drawings
Fig. 1 is a schematic diagram of the internal structure of a degreasing section cracking-proof circulating air structure of an atmosphere protection four-pusher kiln provided by the utility model;
FIG. 2 is a schematic view of the internal structure of the kiln chamber of the degreasing section cracking-preventing circulating air structure of the atmosphere protection four-pusher kiln provided by the utility model;
FIG. 3 is a schematic view of the internal structure of a conventional four pusher kiln.
Illustration of the drawings:
1. an electric heating wire; 2. a bottom air inlet pipe; 3. a circulating fan; 4. an air exhaust pipe; 5. a kiln side air inlet; 6. a mesh plate; 7. a top gas passing tank body; 8. a top air outlet box body; 9. an intermediate baffle; 10. an air intake gap; 11. a channel; 12. a kiln chamber; 13. a four pusher kiln; 14. a heating cavity; 15. a side air inlet cavity; 16. an air inlet; 17. a gas passing port; 18. and an air outlet.
Detailed Description
Referring to fig. 1-3, the present invention provides an embodiment: a degreasing section cracking-preventing circulating air structure of an atmosphere protection four-pusher kiln comprises a four-pusher kiln 13, a kiln cavity 12 is formed in the inner end of the four-pusher kiln 13, four channels 11 are longitudinally formed in the kiln cavity 12 and used for placing products on the channels 11, a heating cavity 14 is formed in the four-pusher kiln 13 at the bottom end of the kiln cavity 12, a heating wire 1 is fixedly arranged at the inner end of the heating cavity 14 and used for heating the kiln cavity 12 through the heating wire 1, a bottom air inlet pipe 2 is fixedly arranged inside the bottom end of the four-pusher kiln 13, one end of the bottom air inlet pipe 2 is communicated with the outer end, the other end of the bottom air inlet pipe is communicated with the inner end of the heating cavity 14, a side air inlet cavity 15 is formed in the inner end of one side of the four-pusher kiln 13, a circulating fan 3 is fixedly arranged at the top end of the side air inlet cavity 15, a kiln side air inlet 5 is formed in the four-pusher kiln 13 close to the side air inlet cavity 15 in a penetrating manner, the kiln side air inlet 5 is communicated with the side air inlet cavity 15, the bottom end of the side air inlet cavity 15 is communicated with the heating cavity 14, one end of the heating cavity 14 far away from the side air inlet cavity 15 is communicated with the bottom of one side of the kiln cavity 12.
The top end inside the kiln cavity 12 is fixedly provided with a top air passing box body 7 and a top air outlet box body 8, the top air passing box body 7 is tightly attached to the top air outlet box body 8, the top air passing box body 7 is arranged into a hollow cuboid shape, the top air outlet box body 8 is arranged into an isosceles trapezoid shape, its inner also is cavity, and narrower one end is close to the top and crosses gas tank 7, and the top is given vent to anger 8 bottom and is close to the intermediate baffle 9 of the fixed position connected with of the top of gas tank 7, the top is crossed the one end that gas tank 7 kept away from the top and is given vent to anger tank 8 and has been seted up air inlet 16, the top is crossed the one end bottom that gas tank 7 is close to the top and is given vent to anger tank 8 and has also been seted up air port 17, the top is given vent to anger tank 8 and is kept away from the one end bottom of top and is seted up gas outlet 18, the one end upside through connection that gas tank 8 is close to the top and is crossed gas tank 7 at the top has exhaust tube 4, and the top of exhaust tube 4 runs through the top of four push pedal kilns 13 and passes through to the outside.
The fixed mesh plate 6 that is provided with in position department that is close to air inlet 16 in 7 bottom middle parts of gas tank body are crossed at the top, mesh plate 6 sets up the one end of keeping away from kiln side air intake 5 in kiln chamber 12, and mesh plate 6 bottom meets with kiln chamber 12 bottom, two liang of a set of left and right sides of following into four passageways 11 is with middle baffle 9, the bottom height of middle baffle 9 is located the middle upper-part department of passageway 11 height, kiln chamber 12 bottom between two passageways 11 that are located the homonymy has seted up air intake gap 10, and two air intake gap 10 bottoms link up with heating chamber 14 mutually.
The working principle is as follows: the electric heating wire 1 heats the kiln cavity 12, the air in the bottom air inlet pipe 2 enters the inner end of the heating cavity 14, the circulating fan 3 works to make the outside air enter the inner end of the side air inlet cavity 15 through the kiln side air inlet 5, then enter the heating cavity 14, the air in the heating cavity 14 enters the inner end of the kiln cavity 12 by 3 paths, one path passes through two air inlet gaps 10, then passes through four channels 11 to enter the kiln cavity 12, one path enters the kiln cavity 12 from one end of the heating cavity 14, then passes through the mesh plate 6 to enter the inner end of the kiln cavity 12, the last path firstly passes through the heating cavity 14 to enter one side of the kiln cavity 12, then enters the box body from the air inlet 16 of the top air box body 7, then passes through the air inlet 17 and the middle baffle plate 9 to enter the middle lower ends of the two channels 11 near the right side, the products on the four channels 11 are heated while the air is replaced, finally the air entering the inner end of the kiln cavity 12 enters the top air box body 8 through the air outlet 18 with PVA decomposition products and moisture, and then is extracted through the extraction tube 4.
Claims (6)
1. The utility model provides a cracking-proof circulating air structure of degrease section of four pushed slab kilns of atmosphere protection, includes four pushed slab kilns (13), kiln chamber (12) are seted up to four pushed slab kilns (13) the inner, vertically are provided with four passageways (11) in kiln chamber (12), its characterized in that: a heating cavity (14) is arranged in the four-pusher kiln (13) at the bottom end of the kiln cavity (12), the inner end of the heating cavity (14) is fixedly provided with an electric heating wire (1), the bottom end of the four-pusher kiln (13) is internally and fixedly provided with a bottom air inlet pipe (2), one end of the bottom air inlet pipe (2) is communicated with the outer end, the other end is communicated with the inner end of the heating cavity (14), a side air inlet cavity (15) is arranged at the inner end of one side of the four-pusher kiln (13), a circulating fan (3) is fixedly arranged at the top end of the side air inlet cavity (15), one side of the four-pusher kiln (13) close to the air inlet cavity (15) is provided with a kiln side air inlet (5) in a penetrating way, and the kiln side air inlet (5) is communicated with the side air inlet cavity (15), the bottom end of the side air inlet cavity (15) is communicated with the heating cavity (14), one end of the heating cavity (14) far away from the side air inlet cavity (15) is communicated with the bottom of one side of the kiln cavity (12);
the kiln comprises a kiln cavity (12), wherein a top gas passing box body (7) and a top gas outlet box body (8) are fixedly arranged at the top end inside the kiln cavity (12), the top gas passing box body (7) and the top gas outlet box body (8) are tightly attached, an intermediate baffle (9) is fixedly connected to the position, close to the top gas passing box body (7), of the bottom end of the top gas outlet box body (8), an air inlet (16) is formed in one end, far away from the top gas outlet box body (8), of the top gas passing box body (7), a gas inlet (17) is also formed in the bottom of one end, close to the top gas outlet box body (8), of the top gas passing box body (7), a gas outlet (18) is formed in the bottom of one end, far away from the top gas passing box body (7), of the top gas outlet box body (8), close to the top gas passing box body (7), an air exhaust pipe (4) is connected in a penetrating through mode at the top end of a four-push plate kiln (13) to the outside, the fixed mesh plate (6) that is provided with of position department that is close to air inlet (16) in middle part of gas tank body (7) bottom is crossed at the top, two sets of about two liang of a set of fall into in four passageways (11) are located two of homonymy in middle baffle (9) kiln chamber (12) bottom between passageway (11) has seted up air inlet gap (10), and two air inlet gap (10) bottom link up with heating chamber (14) mutually.
2. The degreasing section cracking-preventing circulating air structure of the atmosphere protection four-pusher kiln as claimed in claim 1, wherein: the mesh plate (6) is arranged at one end, far away from the kiln side air inlet (5), in the kiln cavity (12), and the bottom end of the mesh plate (6) is connected with the bottom of the kiln cavity (12).
3. The degreasing section cracking-preventing circulating air structure of the atmosphere protection four-pusher kiln as claimed in claim 1, wherein: the bottom height of the middle baffle (9) is positioned on the upper middle part of the height of the channel (11).
4. The degreasing section cracking-preventing circulating air structure of the atmosphere protection four-pusher kiln as claimed in claim 1, wherein: the top air box body (7) is arranged in a hollow cuboid shape.
5. The anti-cracking circulating air structure of the degreasing section of the atmosphere protection four-pushed slab kiln as claimed in claim 1, wherein: the top air outlet box body (8) is arranged into an isosceles trapezoid shape, the inner end of the top air outlet box body is also hollow, and the narrow end of the top air outlet box body is close to the top air outlet box body (7).
6. The degreasing section cracking-preventing circulating air structure of the atmosphere protection four-pusher kiln as claimed in claim 1, wherein: the body of the circulating fan (3) is arranged at the top of the four-pusher kiln (13), and the working end of the circulating fan is positioned in the side air inlet cavity (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220686120.1U CN217058336U (en) | 2022-03-28 | 2022-03-28 | Atmosphere protection four pusher kiln's degrease section anti-cracking circulating air structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220686120.1U CN217058336U (en) | 2022-03-28 | 2022-03-28 | Atmosphere protection four pusher kiln's degrease section anti-cracking circulating air structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217058336U true CN217058336U (en) | 2022-07-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220686120.1U Active CN217058336U (en) | 2022-03-28 | 2022-03-28 | Atmosphere protection four pusher kiln's degrease section anti-cracking circulating air structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217058336U (en) |
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2022
- 2022-03-28 CN CN202220686120.1U patent/CN217058336U/en active Active
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