CN213012601U - Fluidized bed premixing combustion device for sintering glass beads - Google Patents
Fluidized bed premixing combustion device for sintering glass beads Download PDFInfo
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- CN213012601U CN213012601U CN202022001183.2U CN202022001183U CN213012601U CN 213012601 U CN213012601 U CN 213012601U CN 202022001183 U CN202022001183 U CN 202022001183U CN 213012601 U CN213012601 U CN 213012601U
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- chamber
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- wall
- fluid bed
- fluidization
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- 239000011521 glass Substances 0.000 title claims abstract description 29
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 26
- 239000011324 bead Substances 0.000 title claims abstract description 24
- 238000005245 sintering Methods 0.000 title claims abstract description 23
- 238000005243 fluidization Methods 0.000 claims abstract description 28
- 238000009827 uniform distribution Methods 0.000 claims abstract description 10
- 238000005192 partition Methods 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 6
- 230000001154 acute effect Effects 0.000 claims description 3
- UHZZMRAGKVHANO-UHFFFAOYSA-M chlormequat chloride Chemical compound [Cl-].C[N+](C)(C)CCCl UHZZMRAGKVHANO-UHFFFAOYSA-M 0.000 claims 9
- 239000012530 fluid Substances 0.000 claims 9
- 239000000843 powder Substances 0.000 abstract description 24
- 238000009776 industrial production Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 238000006276 transfer reaction Methods 0.000 abstract description 3
- 230000003321 amplification Effects 0.000 abstract description 2
- 238000003199 nucleic acid amplification method Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 22
- 239000000203 mixture Substances 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 239000004005 microsphere Substances 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000011325 microbead Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The utility model discloses a fluidized bed premixed combustion device for sintering glass beads, which comprises a fluidizing chamber and a premixing chamber which are arranged up and down, wherein the fluidizing chamber and the premixing chamber are connected through flanges, a circular fluidized bed layer is arranged between the flanges, and a leveling blade is arranged at the upper part of the fluidized bed layer and is driven by a driving shaft at the bottom; the top of the fluidization chamber is provided with a combustion port, the inner side of the top of the fluidization chamber is provided with an inner cylinder, and the outer side of the top of the fluidization chamber is provided with an outer cylinder; a first annular clamping cavity is arranged between the outer wall of the inner cylinder and the inner wall of the fluidization chamber, a second annular clamping cavity is arranged between the inner wall of the outer cylinder and the outer wall of the fluidization chamber, and a flame uniform distribution plate is arranged in the outer cylinder; the utility model can realize the output amplification, the output can be adjusted, and the industrial production can be realized; the glass bead light powder can be uniformly distributed in the flame, the uniform mass transfer reaction process of the powder in the flame is realized, and the sintered product is sufficient and uniform and has high yield.
Description
Technical Field
The utility model relates to a burner, specific theory relates to a fluidized bed premix burner for glass bead sintering, belongs to glass bead sintering equipment technical field.
Background
Hollow glass microspheres (Hollow glass microspheres) are glass microspheres which are specially processed and are mainly characterized by smaller density and poorer thermal conductivity than glass microspheres. The novel micron-sized light material is developed in the fifth and sixty years of the last century, the main component of the novel micron-sized light material is borosilicate, the general granularity is 10-250 mu m, and the wall thickness is 1-2 mu m; the hollow glass beads have the characteristics of high compressive strength, high melting point, high electrical resistivity, small thermal conductivity coefficient, small thermal contraction coefficient and the like, and are known as 'space time materials' in the 21 st century.
The sintering furnace end of the glass bead combustor in the prior art generally has the problem that the yield is difficult to enlarge, if the yield needs to be increased, the number of the furnace ends can be increased, and the corresponding matched equipment of each furnace end needs to be increased according to multiples, so that the difficulty is brought to industrial production; in addition, in the process of sintering powder by using the conventional burner, the problems of insufficient and uneven sintering and low yield of sintered products are easy to occur.
In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model provides a fluidized bed premixing combustion device for sintering glass beads aiming at the defects in the background technology, which can realize the yield amplification and the adjustable yield and is beneficial to the realization of industrial production; the glass bead light powder can be uniformly distributed in the flame, the uniform mass transfer reaction process of the powder in the flame is realized, and the sintered product is sufficient and uniform and has high yield.
For solving the technical problem, the utility model discloses a following technical scheme:
a fluidized bed premixed combustion device for sintering glass beads comprises a fluidizing chamber and a premixing chamber which are arranged up and down, wherein the fluidizing chamber is connected with the premixing chamber through flanges, a circular fluidized bed layer is arranged between the flanges, and leveling blades are arranged on the upper portion of the fluidized bed layer and driven by a driving shaft at the bottom; the top of the fluidization chamber is provided with a combustion port, the inner side of the top of the fluidization chamber is provided with an inner cylinder, and the outer side of the top of the fluidization chamber is provided with an outer cylinder; a first annular clamping cavity is arranged between the outer wall of the inner cylinder and the inner wall of the fluidization chamber, a second annular clamping cavity is arranged between the inner wall of the outer cylinder and the outer wall of the fluidization chamber, and a flame uniform distribution plate is arranged inside the outer cylinder.
Furthermore, a feeding device is arranged on the side wall of the fluidizing chamber, and a feeding hole of the feeding device is horizontally or obliquely arranged.
Furthermore, the driving shaft vertically penetrates through the center of the inner cavity of the premixing chamber, and the lower end of the driving shaft is connected with an output shaft of the driving motor; the driving motor is arranged at the bottom of the premixing chamber.
Further, a sleeve is arranged outside the driving shaft, and a compressed air inlet is formed in the sleeve.
Furthermore, the inside of the premixing chamber is provided with a plurality of partition plates, the inner cavity of the premixing chamber is divided into a plurality of chambers by the partition plates, and each chamber is provided with a fluidized gas inlet and an air inlet.
Furthermore, a flameout emission pipeline is arranged at the bottom of the premixing chamber and provided with a plurality of emission holes; one end of the flameout emission pipeline is connected with the induced draft fan.
Furthermore, the top of the first annular clamping cavity is sealed, the bottom of the first annular clamping cavity is opened, and the first annular clamping cavity is communicated with the auxiliary gas inlet and the air inlet.
Furthermore, the bottom of the second annular clamp cavity is sealed, the top of the second annular clamp cavity is opened, and the second annular clamp cavity is communicated with an auxiliary gas inlet and an auxiliary air inlet.
Furthermore, the flame uniform distribution plate is a round metal plate with fine meshes, straight holes or tapered holes are uniformly distributed on the round metal plate, and the tapered holes are of a structure with a small top and a big bottom.
Further, the top edge of outer barrel is acute angle structure.
The utility model adopts the above technical scheme after, compare with prior art, have following advantage:
the utility model utilizes the mode of combining the fluidized bed principle with the premixed combustion, the premixed combustible gas formed by the gas and the air is used for fluidizing the powder to form a high-concentration and homogenized combustion mixture, the combustion mixture uniformly overflows and is sintered, and the material is sintered by adopting a direct combustion mode; the powder fluidization sintering rate can be adjusted through the flow velocity of the mixed fuel gas, the yield can be enlarged, the yield can be adjusted, and the industrial production can be realized; the glass micro-bead light powder is uniformly distributed in the flame, so that the uniform mass transfer reaction process of the powder in the flame is realized, the sintered product is uniform, and the yield is high; the combustible gas entering through the inner cylinder and the outer cylinder can play a role in assisting combustion and can avoid the condition that peripheral powder is insufficiently sintered due to the fact that the peripheral powder is close to cold air; the flameout diffusing device in the utility model can extract the mixed gas in the device when flameout, thereby avoiding backfire and simultaneously avoiding the unsintered powder from overflowing into the fired finished product along with wind after flameout; the utility model discloses the principle is simple, and control is simple, and the operation is stable, does not have complicated supporting facility.
The present invention will be described in detail with reference to the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a cross-sectional view taken at A-A of FIG. 1;
FIG. 3 is a partial cross-sectional view of FIG. 1;
in the figure, 1-fluidization chamber, 2-premixing chamber, 3-fluidization bed layer, 4-feeding device, 5-leveling blade, 6-driving shaft, 7-driving motor, 8-sleeve, 9-compressed air inlet, 10-partition plate, 11-fluidization gas and air inlet, 12-flameout diffusing pipeline, 13-diffusing hole, 14-inner cylinder, 15-first annular clamp cavity, 16-auxiliary gas and air inlet, 17-flame uniform distribution plate, 18-outer cylinder, 19-second annular clamp cavity, 20-combustion port and 21-electronic ignition device.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings.
As shown in fig. 1-3 jointly, the utility model provides a fluidized bed premixed combustion device for glass bead sintering, including fluidizing chamber 1 on upper portion and premixing chamber 2 of lower part, fluidizing chamber 1 passes through flange joint with premixing chamber 2, installs circular shape fluidized bed 3 between the flange, and fluidized bed 3 cuts apart fluidizing chamber 1 and premixing chamber 2's inner chamber.
The side wall of the fluidization chamber 1 is provided with a feeding device 4, the feeding device 4 adopts the modes of spiral feeding, pneumatic conveying feeding, chute feeding and the like, and a feeding hole of the feeding device 4 is horizontally or obliquely arranged.
The upper part of the fluidized bed layer 3 is provided with a leveling blade 5, and the leveling blade 5 enables the glass bead light powder to be leveled on the upper part of the fluidized bed layer 3 in a reciprocating leveling mode; the leveling blades 5 are driven by a driving shaft 6 at the bottom; the driving shaft 6 vertically penetrates through the center of the inner cavity of the premixing chamber 2, the driving shaft 6 is fixed at the penetrating position of the fluidized bed layer 3 through a bearing seat, and the lower end of the driving shaft 6 is connected with an output shaft of a driving motor 7; the driving motor 7 is installed at the bottom of the premixing chamber 2.
The outside cover of drive shaft 6 is equipped with sleeve pipe 8 that plays the guard action, is provided with compressed air inlet 9 on the sleeve pipe 8, can let in compressed air by compressed air inlet 9 in the sleeve pipe 8, can avoid the powder to fall into inside the sealing member of drive shaft 6 or fall into and mix room 2 in advance.
The inside of the premixing chamber 2 is provided with a plurality of partition plates 10, the partition plates 10 divide the inner cavity of the premixing chamber 2 into a plurality of chambers, and each chamber is provided with a fluidized gas inlet 11 and an air inlet 11.
The bottom of the premixing chamber 2 is provided with a flameout diffusing pipeline 12, the flameout diffusing pipeline 12 is provided with a plurality of diffusing holes 13, and the diffusing holes 13 are arranged in one-to-one correspondence with the plurality of cavities in the premixing chamber 2; one end of the flameout emission pipeline 12 is connected with an induced draft fan; the flameout emission pipeline 12 is used for extracting mixed gas in the fluidizing chamber 1 and the premixing chamber 2 during flameout, so as to avoid backfire, and simultaneously avoid that unsintered powder continuously overflows with wind after flameout and enters a fired finished product.
The top of the fluidization chamber 1 is provided with a combustion port 20, and one side of the combustion port 20 is provided with an electronic ignition device 21; an inner cylinder 14 is arranged on the inner side of the top of the fluidization chamber 1, and an outer cylinder 18 is arranged on the outer side of the top of the fluidization chamber 1; a first annular clamping cavity 15 is arranged between the outer wall of the inner cylinder 14 and the inner wall of the fluidization chamber 1, the top of the first annular clamping cavity 15 is sealed, the bottom of the first annular clamping cavity is opened, and the first annular clamping cavity 15 is communicated with an auxiliary gas and air inlet 16; after entering the first annular clamping cavity 15 along a tangent line, the mixed gas of the gas and the air flows in a rotating manner, gradually overflows from the opening at the lower end of the first annular clamping cavity 15, and then is mixed with the fluidized gas and the air entering the premixing chamber 2, so that the purpose of auxiliary combustion is achieved.
A second annular clamping cavity 19 is arranged between the inner wall of the outer cylinder 18 and the outer wall of the fluidization chamber 1, the bottom of the second annular clamping cavity 19 is sealed, the top of the second annular clamping cavity is opened, and the second annular clamping cavity 19 is communicated with an auxiliary gas and air inlet 16; after entering the second annular clamping cavity 19 along a tangent line, the mixed gas of the fuel gas and the air flows in a rotating manner and gradually overflows from an opening at the upper end of the second annular clamping cavity 19, and then a circle of flame is added on the periphery of the powder sintering flame, so that the condition that the powder on the periphery of the flame cannot be fully sintered due to the fact that the powder is close to cold air is avoided, and the purpose of auxiliary combustion is achieved.
A flame uniform distribution plate 17 is arranged inside the outer cylinder 18, and the flame uniform distribution plate 17 is simultaneously positioned in the combustion port 20; the flame uniform distribution plate 17 is a round metal plate with fine meshes, straight holes or tapered holes are uniformly distributed on the round metal plate, and the tapered holes are in a structure with a small top and a big bottom; the top edge of the outer cylinder 18 is acute to avoid that part of the powder is brought out of the flame and falls down or is subsequently sucked into the furnace to become an incomplete product.
The utility model discloses a concrete theory of operation:
the light glass bead powder enters the upper part of the fluidized bed layer 3 through a feeding device 4, and the powder is leveled by a leveling blade 5 under the drive of a drive motor 7; fluidizing gas and air enter the premixing chamber 2 to be mixed, powder is suspended upwards to realize fluidization along with the increase of the flow velocity of the fluidizing gas and the air, a high-concentration and homogenized combustion mixture is finally formed, the combustion mixture reaches the combustion port 20 of the fluidizing chamber 1 to be ignited, and the powder in the combustion mixture is sintered after uniformly overflowing through the flame uniform distribution plate 17; the auxiliary gas and air entering the inner cylinder 14 directly enter the fluidizing chamber 1 to be mixed with the fluidizing gas in the fluidizing chamber 1, so that the effect of auxiliary combustion is achieved; the auxiliary gas and air entering the outer cylinder 18 can supplement a circle of flame at the periphery of the combustion port 20 of the fluidization chamber 1, so that the condition that peripheral powder is close to cold air and is not sintered sufficiently is avoided.
The foregoing is illustrative of the best mode of the invention, and details not described herein are within the common general knowledge of a person of ordinary skill in the art. The protection scope of the present invention is subject to the content of the claims, and any equivalent transformation based on the technical teaching of the present invention is also within the protection scope of the present invention.
Claims (10)
1. The utility model provides a fluidized bed premix burner for glass bead sintering which characterized in that: the device comprises a fluidizing chamber (1) and a premixing chamber (2) which are arranged up and down, wherein the fluidizing chamber (1) is connected with the premixing chamber (2) through flanges, circular fluidizing bed layers (3) are arranged between the flanges, leveling blades (5) are arranged at the upper parts of the fluidizing bed layers (3), and the leveling blades (5) are driven by a driving shaft (6) at the bottom; the top of the fluidization chamber (1) is provided with a combustion port (20), the inner side of the top of the fluidization chamber (1) is provided with an inner cylinder (14), and the outer side of the top of the fluidization chamber (1) is provided with an outer cylinder (18); a first annular clamping cavity (15) is arranged between the outer wall of the inner cylinder (14) and the inner wall of the fluidization chamber (1), a second annular clamping cavity (19) is arranged between the inner wall of the outer cylinder (18) and the outer wall of the fluidization chamber (1), and a flame uniform distribution plate (17) is arranged inside the outer cylinder (18).
2. The fluid bed pre-mix burner apparatus for glass bead sintering of claim 1 wherein: the side wall of the fluidization chamber (1) is provided with a feeding device (4), and a feeding hole of the feeding device (4) is horizontally or obliquely arranged.
3. The fluid bed pre-mix burner apparatus for glass bead sintering of claim 1 wherein: the driving shaft (6) vertically penetrates through the center of the inner cavity of the premixing chamber (2), and the lower end of the driving shaft (6) is connected with an output shaft of a driving motor (7); the driving motor (7) is arranged at the bottom of the premixing chamber (2).
4. The fluid bed pre-mix burner apparatus for glass bead sintering of claim 1 wherein: and a sleeve (8) is arranged outside the driving shaft (6), and a compressed air inlet (9) is arranged on the sleeve (8).
5. The fluid bed pre-mix burner apparatus for glass bead sintering of claim 1 wherein: the inside of the premixing chamber (2) is provided with a plurality of partition plates (10), the inner cavity of the premixing chamber (2) is divided into a plurality of chambers by the partition plates (10), and each chamber is provided with a fluidized gas inlet and an air inlet (11).
6. The fluid bed pre-mix burner apparatus for glass bead sintering of claim 1 wherein: the bottom of the premixing chamber (2) is provided with a flameout emission pipeline (12), and the flameout emission pipeline (12) is provided with a plurality of emission holes (13); one end of the flameout emission pipeline (12) is connected with an induced draft fan.
7. The fluid bed pre-mix burner apparatus for glass bead sintering of claim 1 wherein: the top of the first annular clamping cavity (15) is sealed, the bottom of the first annular clamping cavity is opened, and the first annular clamping cavity (15) is communicated with an auxiliary gas and air inlet (16).
8. The fluid bed pre-mix burner apparatus for glass bead sintering of claim 1 wherein: the bottom of the second annular clamp cavity (19) is sealed, the top of the second annular clamp cavity is opened, and the second annular clamp cavity (19) is communicated with the auxiliary gas and air inlet (16).
9. The fluid bed pre-mix burner apparatus for glass bead sintering of claim 1 wherein: the flame uniform distribution plate (17) is a round metal plate with fine meshes, straight holes or tapered holes are uniformly distributed on the round metal plate, and the tapered holes are of a structure with a small top and a big bottom.
10. The fluid bed pre-mix burner apparatus for glass bead sintering of claim 1 wherein: the top end edge of the outer cylinder body (18) is of an acute angle structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022001183.2U CN213012601U (en) | 2020-09-14 | 2020-09-14 | Fluidized bed premixing combustion device for sintering glass beads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022001183.2U CN213012601U (en) | 2020-09-14 | 2020-09-14 | Fluidized bed premixing combustion device for sintering glass beads |
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| CN213012601U true CN213012601U (en) | 2021-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022001183.2U Active CN213012601U (en) | 2020-09-14 | 2020-09-14 | Fluidized bed premixing combustion device for sintering glass beads |
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| CN (1) | CN213012601U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116099329A (en) * | 2022-12-14 | 2023-05-12 | 宁波凯勒电气有限公司 | Organic waste gas continuous treatment method based on circulating fluidized bed system |
-
2020
- 2020-09-14 CN CN202022001183.2U patent/CN213012601U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116099329A (en) * | 2022-12-14 | 2023-05-12 | 宁波凯勒电气有限公司 | Organic waste gas continuous treatment method based on circulating fluidized bed system |
| CN116099329B (en) * | 2022-12-14 | 2023-08-01 | 宁波凯勒电气有限公司 | Organic waste gas continuous treatment method based on circulating fluidized bed system |
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