CN111905645A - Hot air distributor for pressure spray drying equipment - Google Patents
Hot air distributor for pressure spray drying equipment Download PDFInfo
- Publication number
- CN111905645A CN111905645A CN202010746964.6A CN202010746964A CN111905645A CN 111905645 A CN111905645 A CN 111905645A CN 202010746964 A CN202010746964 A CN 202010746964A CN 111905645 A CN111905645 A CN 111905645A
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- Prior art keywords
- hot air
- air
- pipe
- mixing
- spray drying
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/02—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/16—Evaporating by spraying
- B01D1/18—Evaporating by spraying to obtain dry solids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/30—Accessories for evaporators ; Constructional details thereof
Abstract
The invention discloses a hot air distributor for pressure spray drying equipment, which comprises a hot air distribution box body, wherein a plurality of hot air distributors are assembled in the hot air distribution box body; the hot air distributors comprise hot air inlet pipes, and the air inlet ends of the hot air inlet pipes are positioned outside the hot air distribution box body; the hot air inlet pipe is communicated with a through pipe, the through pipe is communicated with a plurality of air collecting discs, and the bottoms of the air collecting discs are communicated with a plurality of spiral air mixing pipes; the bottom of the spiral gas mixing pipe is communicated with a gas outlet disc, and the bottom of the gas outlet disc is provided with a plurality of gas passing through holes; the bottom of the hot air distribution box body is provided with a first through hole matched with the hot air distribution box body, the bottom of the hot air distribution box body is communicated with an air mixing box, and the top of the air mixing box is provided with a plurality of second through holes matched with the first through holes; the left and right side walls of the gas mixing box are provided with a plurality of exhaust nozzle pipes which are arranged at intervals in the front and the back. The design of the parts of the device realizes the uniform mixing of hot air, and improves the uniformity of spray drying of the pressure spray drying equipment.
Description
Technical Field
The invention relates to pressure spray drying equipment, in particular to a hot air distributor for the pressure spray drying equipment.
Background
The pressure spray dryer is a device which can simultaneously complete drying and granulation. The pressure, flow and size of the jet orifice of the feed liquid pump can be adjusted according to the process requirements, and the required spherical particles with a certain size proportion are obtained. The working process is that feed liquid is input under high pressure through a diaphragm pump, atomized liquid drops are sprayed out and then flow with hot air in parallel and descend, most of powder particles are collected from a discharge port at the bottom of the tower, waste gas and tiny powder of the waste gas are separated through a cyclone separator, the waste gas is discharged through an exhaust fan, the powder is collected through a pollination cylinder arranged at the lower end of the cyclone separator, a secondary dust removal device can be further arranged at the outlet of the fan, and the recovery rate is over 96-98%. The material of the tower body, the pipeline and the separator at the part of the tower body, which is in contact with the material.
However, in the use process of the pressure spray dryer, the hot air discharged by the working equipment is not uniform, which is specifically characterized in that the temperature of the hot air is not uniform, and the air flow of the hot air is not uniform enough, so that the materials cannot be sufficiently and effectively dried in the spray drying process.
Disclosure of Invention
The invention aims to solve the technical problem of providing the method.
The invention solves the technical problems through the following technical scheme:
a hot air distributor for pressure spray drying equipment comprises a hot air distribution box body, wherein a plurality of hot air distributors are assembled in the hot air distribution box body;
the hot air distributors comprise hot air inlet pipes, and the air inlet ends of the hot air inlet pipes are positioned outside the hot air distribution box body;
the hot air inlet pipe is communicated with a through pipe, the through pipe is communicated with a plurality of air collecting discs, cavities are formed in the air collecting discs, and the bottoms of the air collecting discs are communicated with a plurality of spiral air mixing pipes;
the bottom of the spiral gas mixing pipe is communicated with a gas outlet disc, a cavity is formed in the gas outlet disc, and a plurality of gas passing through holes are formed in the bottom of the gas outlet disc;
the bottom of the hot air distribution box body is provided with a plurality of first through holes matched with the air passing through holes, the bottom of the hot air distribution box body is communicated with an air mixing box, and the top of the air mixing box is provided with a plurality of second through holes matched with the first through holes;
the first through hole, the air passing through hole and the second through hole are positioned on the same straight line;
and a plurality of exhaust nozzle pipes which are arranged at intervals in the front and the back are arranged on the left side wall and the right side wall of the gas mixing box.
As an optimization of the structure of the invention, the hot air inlet pipe is connected with the through pipe through a flange.
As an optimization of the structure of the invention, the exhaust nozzle pipe comprises a cylindrical part and a conical part communicated with the cylindrical part.
As an optimization of the structure of the invention, the gas mixing box is internally provided with a gas mixing piece.
As an optimization of the structure of the invention, the air mixing piece comprises a rotating shaft, and a spiral air guide sheet is fixedly connected to the rotating shaft.
As an optimization of the structure of the invention, the front end and the rear end of the rotating shaft are rotatably connected with bearings, and the bearings are fixedly connected to the front side wall and the rear side wall in the gas mixing box.
As an optimization of the structure of the invention, an internal cavity is arranged in the gas mixing box, and the bearings are fixedly connected to the front side wall and the rear side wall of the internal cavity.
As an optimization of the structure of the invention, a plurality of spiral gas mixing pipes are annularly distributed at the bottom of the gas collecting disc;
the spiral gas mixing pipe is made of stainless steel.
As an optimization of the structure of the hot air distribution box, the outer side wall of the hot air distribution box body is sprayed with a heat insulation material.
The invention also discloses a use method of the hot air distributor for the pressure spray drying equipment, which comprises the following steps:
hot air enters the through pipe through the air inlet end of the hot air inlet pipe, the through pipe is communicated with and enters the air collecting disc, and the bottom of the air collecting disc is communicated with a plurality of spiral air mixing pipes; after the hot air is mixed by the spiral air mixing pipe, the air heater enters the air outlet disc, and the air outlet disc enters the air mixing box for air mixing and then is discharged from the air outlet nozzle pipe.
Compared with the prior art, the invention has the following advantages:
the invention discloses a hot air distributor for pressure spray drying equipment, which is characterized in that a hot air distribution box body is designed, a plurality of hot air distributors are assembled in the hot air distribution box body, each hot air distributor comprises a hot air inlet pipe, the air inlet end of each hot air inlet pipe is positioned outside the hot air distribution box body, the hot air inlet pipes are communicated with through pipes, the through pipes are communicated with a plurality of air collecting discs, the bottoms of the air collecting discs are communicated with a plurality of spiral air mixing pipes, the bottoms of the spiral air mixing pipes are communicated with an air outlet disc, the bottoms of the air outlet discs are provided with a plurality of air passing through holes, the bottoms of the hot air distribution box bodies are provided with matched first through holes, the bottoms of the hot air distribution box bodies are communicated with an air mixing box, the tops of the air mixing box bodies are provided with a plurality of second through holes matched with the first through holes, and the left and right side. The design of the parts of the device realizes the uniform mixing of hot air, and improves the uniformity of spray drying of the pressure spray drying equipment.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is a schematic structural view of a hot air distributor according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of another view of the embodiment of FIG. 2;
FIG. 4 is a front view of the embodiment of the present invention shown in FIG. 2;
FIG. 5 is a schematic structural diagram of the air mixing member shown in FIG. 2 according to an embodiment of the present invention;
FIG. 6 is a top view of the embodiment of the present invention in FIG. 5;
fig. 7 is a front view of the embodiment of the present invention shown in fig. 1.
Detailed Description
The following examples are given for the detailed implementation and specific operation of the present invention, but the scope of the present invention is not limited to the following examples.
Example 1
As shown in fig. 1 to 7, a hot air distributor for a pressure spray drying device comprises a hot air distribution box body 1, wherein a plurality of hot air distributors 2 are assembled in the hot air distribution box body 1; hot air is distributed by a hot air distributor 2.
The hot air distributors 2 comprise hot air inlet pipes 21, and the air inlet ends of the hot air inlet pipes 21 are positioned outside the hot air distribution box body 1; the hot air inlet pipe 21 is communicated with a through pipe 22 (the hot air inlet pipe 21 is connected with the through pipe 22 through a flange, the air outlet end of the through pipe 22 is positioned in the hot air distribution box body 1, the following spiral air mixing pipes are positioned in the hot air distribution box body 1), the through pipe 22 is communicated with a plurality of air collecting discs 23, cavities are formed in the air collecting discs 23, and the bottoms of the air collecting discs 23 are communicated with a plurality of spiral air mixing pipes 24; the bottom of the spiral gas mixing pipe 24 is communicated with a gas outlet disc 25, a cavity is formed in the gas outlet disc 25, and a plurality of gas passing through holes 251 are formed in the bottom of the gas outlet disc 25.
Meanwhile, the bottom of the hot air distribution box body 1 is provided with a plurality of first through holes matched with the air passing through holes 251, the bottom of the hot air distribution box body 1 is communicated with an air mixing box 3, and the top of the air mixing box 3 is provided with a plurality of second through holes matched with the first through holes; the first through hole, the air through hole 251 and the second through hole are positioned on the same straight line.
A plurality of exhaust nozzle pipes 31 which are arranged at intervals in the front and the back are arranged on the left and the right side walls of the gas mixing box 3.
The shape of the exhaust nozzle pipe 31 is as follows:
the exhaust nozzle pipe 31 includes a cylindrical portion and a tapered portion communicating with the cylindrical portion.
The plurality of spiral gas mixing pipes 24 are annularly distributed at the bottom of the gas collecting disc 23; the spiral gas mixing pipe 24 is made of stainless steel. The outer side wall of the hot air distribution box body 1 is coated with heat insulation materials.
The process of distributing hot air is as follows:
the hot air enters the hot air inlet pipe 21 and enters the spiral air mixing pipe 24 through the through pipe 22, the spiral air mixing pipe 24 mixes the hot air due to the spiral design, the hot air is fully mixed through the mode, the uniformity of the hot air is improved, and the hot air uniformity is improved and the temperature of the hot air is uniform.
Example 2
As shown in fig. 1 to 7, a hot air distributor for pressure spray drying equipment comprises a hot air distribution box body 1, wherein a plurality of hot air distributors 2 are assembled in the hot air distribution box body 1; hot air is distributed by a hot air distributor 2.
The hot air distributors 2 comprise hot air inlet pipes 21, and the air inlet ends of the hot air inlet pipes 21 are positioned outside the hot air distribution box body 1; the hot air inlet pipe 21 is communicated with a through pipe 22 (the hot air inlet pipe 21 is connected with the through pipe 22 through a flange, the air outlet end of the through pipe 22 is positioned in the hot air distribution box body 1, the following spiral air mixing pipes are positioned in the hot air distribution box body 1), the through pipe 22 is communicated with a plurality of air collecting discs 23, cavities are formed in the air collecting discs 23, and the bottoms of the air collecting discs 23 are communicated with a plurality of spiral air mixing pipes 24; the bottom of the spiral gas mixing pipe 24 is communicated with a gas outlet disc 25, a cavity is formed in the gas outlet disc 25, and a plurality of gas passing through holes 251 are formed in the bottom of the gas outlet disc 25.
Meanwhile, the bottom of the hot air distribution box body 1 is provided with a plurality of first through holes matched with the air passing through holes 251, the bottom of the hot air distribution box body 1 is communicated with an air mixing box 3, and the top of the air mixing box 3 is provided with a plurality of second through holes matched with the first through holes; the first through hole, the air through hole 251 and the second through hole are positioned on the same straight line.
A plurality of exhaust nozzle pipes 31 which are arranged at intervals in the front and the back are arranged on the left and the right side walls of the gas mixing box 3.
The shape of the exhaust nozzle pipe 31 is as follows:
the exhaust nozzle pipe 31 includes a cylindrical portion and a tapered portion communicating with the cylindrical portion.
The plurality of spiral gas mixing pipes 24 are annularly distributed at the bottom of the gas collecting disc 23; the spiral gas mixing pipe 24 is made of stainless steel. The outer side wall of the hot air distribution box body 1 is coated with heat insulation materials.
The process of distributing hot air is as follows:
the hot air enters the hot air inlet pipe 21 and enters the spiral air mixing pipe 24 through the through pipe 22, the spiral air mixing pipe 24 mixes the hot air due to the spiral design, the hot air is fully mixed through the mode, the uniformity of the hot air is improved, and the hot air uniformity is improved and the temperature of the hot air is uniform.
In order to further enhance the mixing effect of the hot air, a gas mixing material 4 is provided in the gas mixing box 3.
The air mixing piece 4 comprises a rotating shaft 41, and a spiral air guide sheet 42 is fixedly connected to the rotating shaft 41. The front end and the rear end of the rotating shaft 41 are rotatably connected with bearings 411, and the bearings 411 are fixedly connected to the front side wall and the rear side wall in the gas mixing box 3.
An inner cavity is formed in the gas mixing box 3, and the bearing 411 is fixedly connected to the front side wall and the rear side wall of the inner cavity.
When hot air enters the air mixing box 3, the air flow impacts the rotating shaft 41, and the rotating shaft 41 is fixedly connected with the spiral air guide piece 42, so that the rotating shaft 41 rotates along with the spiral air guide piece 42 under the driving of the air flow, and in the process, the spiral air guide piece 42 further rotates the mixed air for the air flow.
The hot air after mixing is discharged from the nozzle pipe 31, and the hot air discharged from the nozzle pipe 31 has uniform temperature and uniform discharge rate.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A hot air distributor for pressure spray drying equipment is characterized by comprising a hot air distribution box body, wherein a plurality of hot air distributors are assembled in the hot air distribution box body;
the hot air distributors comprise hot air inlet pipes, and the air inlet ends of the hot air inlet pipes are positioned outside the hot air distribution box body;
the hot air inlet pipe is communicated with a through pipe, the through pipe is communicated with a plurality of air collecting discs, cavities are formed in the air collecting discs, and the bottoms of the air collecting discs are communicated with a plurality of spiral air mixing pipes;
the bottom of the spiral gas mixing pipe is communicated with a gas outlet disc, a cavity is formed in the gas outlet disc, and a plurality of gas passing through holes are formed in the bottom of the gas outlet disc;
the bottom of the hot air distribution box body is provided with a plurality of first through holes matched with the air passing through holes, the bottom of the hot air distribution box body is communicated with an air mixing box, and the top of the air mixing box is provided with a plurality of second through holes matched with the first through holes;
the first through hole, the air passing through hole and the second through hole are positioned on the same straight line;
and a plurality of exhaust nozzle pipes which are arranged at intervals in the front and the back are arranged on the left side wall and the right side wall of the gas mixing box.
2. The hot air distributor for the pressure spray drying device of claim 1, wherein the hot air inlet pipe is connected with the through pipe through a flange.
3. The hot air distributor for a pressure spray drying device according to claim 2, wherein the air outlet nozzle tube includes a cylindrical portion and a tapered portion communicating with the cylindrical portion.
4. A hot air distributor for a pressure spray drying apparatus according to claim 3, wherein a gas mixing member is provided in the gas mixing tank.
5. The hot air distributor for a pressure spray drying device according to claim 4, wherein the air mixing member comprises a rotating shaft, and a spiral air guiding plate is fixedly connected to the rotating shaft.
6. The hot air distributor for the pressure spray drying device according to claim 5, wherein bearings are rotatably connected to the front and rear ends of the rotating shaft, and the bearings are fixedly connected to the front and rear side walls in the air mixing box.
7. The hot air distributor for the pressure spray drying equipment according to claim 6, wherein an inner cavity is formed in the air mixing box, and the bearings are fixedly connected to the front and rear side walls of the inner cavity.
8. The hot air distributor for the pressure spray drying equipment according to claim 7, wherein a plurality of the spiral air mixing pipes are annularly distributed at the bottom of the air collecting tray;
the spiral gas mixing pipe is made of stainless steel.
9. The hot air distributor for the pressure spray drying device according to claim 8, wherein the outer sidewall of the hot air distribution box is coated with a thermal insulation material.
10. A method for using a hot air distributor for a pressure spray drying plant according to any of claims 1 to 9, characterized by the following steps:
hot air enters the through pipe through the air inlet end of the hot air inlet pipe, the through pipe is communicated with and enters the air collecting disc, and the bottom of the air collecting disc is communicated with a plurality of spiral air mixing pipes; after the hot air is mixed by the spiral air mixing pipe, the air heater enters the air outlet disc, and the air outlet disc enters the air mixing box for air mixing and then is discharged from the air outlet nozzle pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010746964.6A CN111905645A (en) | 2020-07-29 | 2020-07-29 | Hot air distributor for pressure spray drying equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010746964.6A CN111905645A (en) | 2020-07-29 | 2020-07-29 | Hot air distributor for pressure spray drying equipment |
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| Publication Number | Publication Date |
|---|---|
| CN111905645A true CN111905645A (en) | 2020-11-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010746964.6A Pending CN111905645A (en) | 2020-07-29 | 2020-07-29 | Hot air distributor for pressure spray drying equipment |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4865820A (en) * | 1987-08-14 | 1989-09-12 | Davy Mckee Corporation | Gas mixer and distributor for reactor |
| CN201331247Y (en) * | 2008-12-31 | 2009-10-21 | 张文华 | Helix tube airflow drier |
| CN209068746U (en) * | 2018-10-22 | 2019-07-05 | 开原金鑫烘干设备有限公司 | A kind of uniform fuel gas hot-blast stove of air flow method |
| CN110124596A (en) * | 2019-06-17 | 2019-08-16 | 郑州大工高新科技有限公司 | A kind of uniform mixed distribution device of gas for vapor phase growing apparatus |
| CN210021203U (en) * | 2019-05-05 | 2020-02-07 | 常州市范群干燥设备有限公司 | Hot air distributor for pressure spray dryer |
| CN111393011A (en) * | 2020-04-17 | 2020-07-10 | 徐州创之社通用技术产业研究院有限公司 | Glassware processing and coloring device |
-
2020
- 2020-07-29 CN CN202010746964.6A patent/CN111905645A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4865820A (en) * | 1987-08-14 | 1989-09-12 | Davy Mckee Corporation | Gas mixer and distributor for reactor |
| CN201331247Y (en) * | 2008-12-31 | 2009-10-21 | 张文华 | Helix tube airflow drier |
| CN209068746U (en) * | 2018-10-22 | 2019-07-05 | 开原金鑫烘干设备有限公司 | A kind of uniform fuel gas hot-blast stove of air flow method |
| CN210021203U (en) * | 2019-05-05 | 2020-02-07 | 常州市范群干燥设备有限公司 | Hot air distributor for pressure spray dryer |
| CN110124596A (en) * | 2019-06-17 | 2019-08-16 | 郑州大工高新科技有限公司 | A kind of uniform mixed distribution device of gas for vapor phase growing apparatus |
| CN111393011A (en) * | 2020-04-17 | 2020-07-10 | 徐州创之社通用技术产业研究院有限公司 | Glassware processing and coloring device |
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Application publication date: 20201110 |