CN218443234U - Hot air box for spray drying - Google Patents
Hot air box for spray drying Download PDFInfo
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- CN218443234U CN218443234U CN202222236132.7U CN202222236132U CN218443234U CN 218443234 U CN218443234 U CN 218443234U CN 202222236132 U CN202222236132 U CN 202222236132U CN 218443234 U CN218443234 U CN 218443234U
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- air
- heat
- electric heating
- heat conducting
- plates
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- 238000001694 spray drying Methods 0.000 title claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims abstract description 74
- 238000005485 electric heating Methods 0.000 claims abstract description 38
- 238000004321 preservation Methods 0.000 claims description 12
- 238000009826 distribution Methods 0.000 claims description 6
- 238000005253 cladding Methods 0.000 claims description 3
- 230000000994 depressogenic effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model provides a hot air box for spray drying, which comprises a shell, a primary heating structure and a plurality of secondary heating structures, wherein the primary heating structure and the secondary heating structures are arranged in sequence along an air flow conveying path; the primary heating structure comprises a plurality of heat conducting pieces and a plurality of first electric heating tubes, the heat conducting pieces are uniformly arranged at intervals, a flow channel through which air flows is formed between every two adjacent heat conducting pieces, and the heat conducting pieces are provided with concave parts which are positioned on the way of the flow channel and slow down the air flow in the way; the first electric heating tube is arranged at the sunken part and supplies heat to the heat conducting piece; the secondary heating structure comprises a plurality of air homogenizing plates and at least two second electric heating tubes, the air homogenizing plates are uniformly arranged at intervals, air ports through which air flows pass are formed between every two adjacent air homogenizing plates, and the second electric heating tubes supply heat to the air homogenizing plates; its novel structure is maintaining the unobstructed circumstances of air current, can prolong the air current during the heat transfer of inside to improve the heating effect.
Description
Technical Field
The utility model relates to a hot-blast equipment field, more specifically relates to a hot-blast case for spray drying.
Background
In the processing and production process of the silicon dioxide delustering agent, the prepared slurry needs to be subjected to the working procedures of grinding, spray drying, crushing and the like, wherein the spray drying refers to that after the thin material is atomized in a drying chamber, water is quickly vaporized in the contact with hot air, and then a dried product is obtained; wherein, the supply of hot air also becomes a key ring;
the existing hot air supply equipment mainly comprises a hot air box and a blower, wherein most of the existing hot air boxes are provided with electric heating tubes inside a box body, and air flow is heated after passing through the electric heating tubes; however, most of the existing hot air boxes are of a straight-through structure, air flow directly passes through the hot air boxes from the inside, the retention time is short, the heat exchange is insufficient, and the heating effect still has room for improvement.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to solve the technical problem that a hot-blast case for spray drying is provided, its novel structure is maintaining under the unobstructed circumstances of air current, can prolong the air current long when the heat transfer in inside to improve the heating effect.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a hot air box for spray drying, which comprises a shell, a primary heating structure and a plurality of secondary heating structures, wherein the primary heating structure and the secondary heating structure are both arranged inside the shell and are sequentially arranged along an air flow conveying path, and the plurality of secondary heating structures are uniformly arranged at intervals; the primary heating structure comprises a plurality of heat conducting pieces and a plurality of first electric heating tubes, the heat conducting pieces are uniformly arranged at intervals, a flow channel for air flow to pass through is formed between every two adjacent heat conducting pieces, a concave part is arranged on each heat conducting piece, and the concave part is positioned on the way of the flow channel to slow down the air flow in the way; the first electric heating tube is arranged at the sunken part and supplies heat for the heat conducting piece;
the secondary heating structure comprises a plurality of air homogenizing plates and at least two second electric heating tubes, the air homogenizing plates are uniformly arranged at intervals, air ports through which air flows pass are formed between every two adjacent air homogenizing plates, and the second electric heating tubes supply heat for the air homogenizing plates.
The utility model discloses in the technical scheme of preferred, even aerofoil on two adjacent second grade heating structures orientation is opposite.
In the preferred technical solution of the present invention, the heat conducting member comprises a straight section and a wave section which are connected to each other, and a plurality of concave portions are formed at the wave section; the wave region of wave section wears to be equipped with the polylith conducting strip, has seted up the arc recess on the conducting strip in the depressed part in the low reaches region, and the erectting of first electrothermal tube is on the arc recess of polylith conducting strip, for the conducting strip supplies heat.
In the technical scheme of the utility model, the first electrothermal tube is installed in the last two depressed parts of the downstream section of the heat conducting piece.
The utility model discloses among the technical scheme of preferred, the second grade heating structure includes two at least second electrothermal tubes and the even aerofoil of polylith, and even aerofoil slope sets up, wears to be equipped with the barrel between the even aerofoil of polylith, and the quantity of barrel is unanimous with the quantity of second electrothermal tube, the internal diameter of barrel and the diameter adaptation of second electrothermal tube, the second electrothermal tube is inserted and is established the inside of installing at the barrel.
In the preferred technical scheme of the utility model, a frame plate and a cover plate are arranged on the outer side of the barrel body close to the opening end, the cover plate is positioned on one side close to the opening end, the length of the cover plate is greater than that of the frame plate, and the width of the cover plate is greater than that of the frame plate; the outer wall of the shell is provided with a plurality of mounting ports corresponding to the secondary heating structure, the shape of the mounting ports is matched with that of the frame plate, the secondary heating structure is inserted into the shell through the mounting ports, and the cover plate abuts against the outer wall of the shell and is fixed through screws; the frame plate is equipped with first heat preservation with filling between the apron, and the cladding of first heat preservation is at the outer wall of barrel, and the outline of first heat preservation does not surpass the outer wall of frame plate.
The beneficial effects of the utility model are that:
the utility model provides a hot air box for spray drying, which has a novel structure and comprises a shell, a primary heating structure and a plurality of secondary heating structures, wherein the primary heating structure and the secondary heating structures are both arranged inside the shell and are sequentially arranged along an air flow conveying path, the air flow in the path is heated doubly, and the air can be effectively heated;
the first-stage heating structure comprises a plurality of heat conducting pieces and a plurality of first electric heating tubes, wherein the heat conducting pieces are uniformly arranged at intervals, and a flow channel for air flow to pass through is formed between every two adjacent heat conducting pieces so that the air flow can be maintained to flow smoothly; the heat conducting piece is provided with the concave part, and the airflow passing through the flow channel can enter the concave part in the conveying process, so that the airflow in the way can be slowed down, the heat exchange time of the airflow in the heat conducting piece can be prolonged, and the heating effect is improved;
and the secondary heating structure is provided with a plurality of air homogenizing plates which are arranged at even intervals, and air ports are formed between every two adjacent air homogenizing plates, so that air in the way can be uniformly distributed, the flowing of the air can be further delayed, and the air is effectively heated.
Drawings
Fig. 1 is a schematic structural view of a hot air box for spray drying according to an embodiment of the present invention;
fig. 2 is a schematic view of an internal structure of a hot air box for spray drying according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a heat-conducting member provided in an embodiment of the present invention;
fig. 4 is a top view of a secondary heating structure provided in an embodiment of the present invention.
In the figure:
100. a primary heating structure; 110. a heat conductive member; 111. a straight section; 112. a wave segment; 113. a heat conductive sheet; 114. an arc-shaped groove; 120. a first electric heating tube; 130. a flow channel; 140. a recessed portion; 200. a secondary heating structure; 210. a wind homogenizing plate; 220. a second electric heating tube; 230. a barrel; 240. a frame plate; 250. a cover plate; 260. a first insulating layer; 300. a housing; 400. sealing the cover; 500. a shield.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
As shown in fig. 1 and 2, the embodiment of the present invention discloses a hot air box for spray drying, which comprises a housing 300, a primary heating structure 100, and a plurality of secondary heating structures 200, wherein the primary heating structure and the secondary heating structure are both installed inside the housing and are sequentially arranged along an air flow conveying path, and the plurality of secondary heating structures are uniformly arranged at intervals; the primary heating structure 100 includes a plurality of heat conducting members 110 and a plurality of first electric heating tubes 120, the plurality of heat conducting members 110 are uniformly arranged at intervals, a flow passage 130 for air flow to pass through is formed between two adjacent heat conducting members 110, and a concave portion 140 is arranged on each heat conducting member 110, and is positioned on the way of the flow passage, so that the air flow in the path can be slowed down; the first electric heating tube 120 is installed at the recess 140 to supply heat to the heat-conducting member 110; the secondary heating structure 200 includes a plurality of air-uniforming plates 210 and at least two second electric heating tubes 220, the plurality of air-uniforming plates 210 are uniformly spaced, air ports through which air flows are formed between two adjacent air-uniforming plates 210, and the second electric heating tubes 220 supply heat to the air-uniforming plates 210.
A hot air box for spray drying is novel in structure and comprises a shell, a primary heating structure and a plurality of secondary heating structures, wherein the primary heating structure and the secondary heating structures are arranged inside the shell and are sequentially arranged along an air flow conveying path, double heating is carried out on air flow in the path, and air can be effectively heated;
the primary heating structure comprises a plurality of heat conducting pieces and a plurality of first electric heating pipes, wherein the heat conducting pieces are uniformly arranged at intervals, and a flow passage for air flow to pass through is formed between every two adjacent heat conducting pieces so as to maintain smooth flow of the air flow; the heat conducting piece is provided with the concave part, and the airflow passing through the flow channel can enter the concave part in the conveying process, so that the airflow in the way can be slowed down, the heat exchange time of the airflow in the heat conducting piece can be prolonged, and the heating effect is improved;
and the secondary heating structure is provided with a plurality of air homogenizing plates which are arranged at even intervals, and air ports are formed between every two adjacent air homogenizing plates, so that air in the way can be uniformly distributed, the flowing of the air can be further delayed, and the air is effectively heated.
Furthermore, the shell is of an L-shaped structure, the primary heating structure is arranged inside the long leg section of the shell, the secondary heating structure is arranged inside the short leg section of the shell, air flows through the primary heating structure to be preheated and heated in the primary mode, and air flows through the secondary heating structure to be heated in the secondary mode, so that effective heating of the air is achieved; and the port department of the short leg section of shell is equipped with the narrowing mouth, and is equipped with a plurality of screw holes in the outside edge of narrowing mouth for install the cooperation with outside air-blower.
Further, the direction of the air distributing plates 210 on two adjacent secondary heating structures 200 is opposite, and the structural design can enable the air flow to be reversed back and forth, so that the contact time of the air and the air distributing plates is effectively prolonged, and effective heating is performed.
Further, as shown in fig. 3, the heat conducting member 110 includes a straight section 111 and a wave section 112 connected to each other, and a plurality of recesses 140 are formed at the wave section 112; a plurality of heat-conducting fins 113 penetrate through the wave area of the wave section 112, arc-shaped grooves 114 are formed in the heat-conducting fins 113 in the concave part of the downstream area, and the first electric heating tube 120 is erected on the arc-shaped grooves 114 of the heat-conducting fins 113 to supply heat to the heat-conducting piece; the plurality of straight sections are parallel and spaced, so that air can be preheated when flowing through the straight sections; the concave parts and the heat conducting fins of the wave sections can increase the contact area of air flowing through and prolong the retention time of the air, thereby obtaining effective primary heating; it should be noted that the concave part refers to a valley region or an inner side region of a peak of the wave segment; furthermore, the wave section is at least provided with 4 fluctuating sunken parts, which can play an effective buffering effect, so that the airflow can better contact with the first electric heating pipe for heating.
Further, the first electric heating tube 120 is installed in the last two recesses 140 of the downstream section of the heat conducting member 113; the main heat can be concentrated in the adjacent areas of the first-stage heating structure and the second-stage heating structure to carry out quick and effective heating; furthermore, a through hole is formed in the outer wall of the shell corresponding to the area of the first electric heating tube, a sealing cover 400 is installed on the outer side of the through hole and used for protecting and insulating the inside of the shell, and the first electric heating tube can be conveniently taken, placed and installed, so that the shell is convenient to overhaul and replace; it should be noted that, if the first electric heating tube is to be erected, the corresponding through hole can be added on the housing, and the sealing cover is installed.
Further, as shown in fig. 4, the secondary heating structure 200 includes at least two second electric heating tubes 220 and a plurality of air distribution plates 210, the air distribution plates 210 are arranged obliquely, a plurality of air distribution plates 210 are provided with tube bodies 230 therebetween, the number of the tube bodies 230 is the same as that of the second electric heating tubes 220, the inner diameter of the tube bodies 230 is adapted to the diameter of the second electric heating tubes 220, and the second electric heating tubes 220 are inserted and installed inside the tube bodies 230; the heat of the second electric heating tube is transferred to the barrel and redistributed to the plurality of air distribution plates, and the air is effectively heated after flowing through the air distribution plates.
Further, a frame plate 240 and a cover plate 250 are erected on the outer side of the barrel 230 near the open end, the cover plate 250 is located on one side near the open end, the length of the cover plate is greater than that of the frame plate, and the width of the cover plate is greater than that of the frame plate; a plurality of mounting openings are formed in the outer wall of the housing 300 corresponding to the secondary heating structure 200, the shape of the mounting openings is matched with that of the frame plate 240, the secondary heating structure 200 is inserted into the housing 300 through the mounting openings, and the cover plate 250 abuts against the outer wall of the housing 300 and is fixed by screws; the secondary heating structure is fixedly supported through the cover plate, and the mounting port is effectively plugged, so that the discharge of internal hot air is prevented; a first heat preservation layer 260 is filled between the frame plate 240 and the cover plate 250, the outer wall of the cylinder 230 is coated with the first heat preservation layer 260, and the outer contour of the first heat preservation layer does not exceed the outer wall of the frame plate, so that the heat insulation effect can be further achieved; and the outer wall cladding of shell has the second heat preservation, and first heat preservation and second heat preservation are made by the polyurethane foaming.
Further, the outer wall of the housing is mounted with a shield 500, all mounting openings are located inside the shield, and the area of the secondary heating structure is protected and thermally insulated via the shield.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not intended to be limited to the specific embodiments disclosed herein, and other embodiments that are within the scope of the present invention are intended to be within the claims of this application.
Claims (6)
1. The utility model provides a hot-blast case for spray drying which characterized in that:
the air-flow heating device comprises a shell, a primary heating structure and a plurality of secondary heating structures, wherein the primary heating structure and the secondary heating structures are arranged inside the shell and are sequentially arranged along an air flow conveying path, and the plurality of secondary heating structures are uniformly arranged at intervals;
the primary heating structure comprises a plurality of heat conducting pieces and a plurality of first electric heating tubes, the heat conducting pieces are uniformly arranged at intervals, a flow channel through which air flows is formed between every two adjacent heat conducting pieces, and the heat conducting pieces are provided with concave parts which are positioned on the way of the flow channel and slow down the air flow in the way; the first electric heating tube is arranged at the sunken part and supplies heat for the heat conducting piece;
the secondary heating structure comprises a plurality of air homogenizing plates and at least two second electric heating tubes, the air homogenizing plates are uniformly arranged at intervals, air ports through which air flows are formed between every two adjacent air homogenizing plates, and the second electric heating tubes supply heat for the air homogenizing plates.
2. The hot air box for spray drying according to claim 1, wherein:
the air distribution plates on two adjacent secondary heating structures face opposite directions.
3. The hot air box for spray drying according to claim 1, wherein:
the heat conducting piece comprises a straight section and a wavy section which are connected, and a plurality of concave parts are formed at the wavy section;
the wave region of wave section wears to be equipped with the polylith conducting strip, has seted up the arc recess on the conducting strip in the depressed part in low reaches region, and the erection of first electrothermal tube is on the arc recess of polylith conducting strip, for the heat-conducting piece carries out the heat supply.
4. The hot air box for spray drying according to claim 1, wherein:
the first electric heating tube is arranged in the last two sunken parts of the downstream section of the heat conducting piece.
5. A hot air box for spray drying according to claim 1, wherein:
the second-stage heating structure comprises at least two second electric heating tubes and a plurality of air distributing plates, the air distributing plates are obliquely arranged, a barrel body penetrates through the plurality of air distributing plates, the number of the barrel body is consistent with that of the second electric heating tubes, the inner diameter of the barrel body is matched with the diameter of the second electric heating tubes, and the second electric heating tubes are inserted into the barrel body.
6. The hot air box for spray drying according to claim 1, wherein:
a frame plate and a cover plate are erected on the outer side of the barrel body close to the opening end, the cover plate is positioned on one side close to the opening end, the length of the cover plate is greater than that of the frame plate, and the width of the cover plate is greater than that of the frame plate;
the outer wall of the shell is provided with a plurality of mounting ports corresponding to the secondary heating structure, the shapes of the mounting ports are matched with the shapes of the frame plates, the secondary heating structure is inserted into the shell through the mounting ports, and the cover plate abuts against the outer wall of the shell and is fixed through screws;
the frame plate is filled between and is equipped with first heat preservation with the apron, and the cladding of first heat preservation is at the outer wall of barrel, and the outline of first heat preservation does not surpass the outer wall of frame plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222236132.7U CN218443234U (en) | 2022-08-24 | 2022-08-24 | Hot air box for spray drying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222236132.7U CN218443234U (en) | 2022-08-24 | 2022-08-24 | Hot air box for spray drying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218443234U true CN218443234U (en) | 2023-02-03 |
Family
ID=85096142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222236132.7U Active CN218443234U (en) | 2022-08-24 | 2022-08-24 | Hot air box for spray drying |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218443234U (en) |
-
2022
- 2022-08-24 CN CN202222236132.7U patent/CN218443234U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Hot air box for spray drying Effective date of registration: 20231101 Granted publication date: 20230203 Pledgee: Qingyuan Branch of Postal Savings Bank of China Co.,Ltd. Pledgor: QINGYUAN XINHUI CHEMICAL Co.,Ltd. Registration number: Y2023980063756 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |