CN219614902U - Spray drier convenient to preheat feed liquid - Google Patents
Spray drier convenient to preheat feed liquid Download PDFInfo
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- CN219614902U CN219614902U CN202223520256.4U CN202223520256U CN219614902U CN 219614902 U CN219614902 U CN 219614902U CN 202223520256 U CN202223520256 U CN 202223520256U CN 219614902 U CN219614902 U CN 219614902U
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- pipeline
- preheating
- feed liquid
- heat exchange
- drying
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model belongs to the technical field of dryers, and in particular relates to a spray dryer convenient for preheating feed liquid, which comprises: the device comprises a feed liquid preheating device, a drying device connected with the feed liquid preheating device, and a separating device connected with the drying device, wherein hot gas output by the separating device is conveyed into the feed liquid preheating device for preheating, the feed liquid preheating device comprises a shell, a preheating pipeline arranged in the shell, a heat exchange pipeline sleeved on the preheating pipeline, a connecting pipeline connected with the heat exchange pipeline, a second gas pipeline connected with the bottom of the heat exchange pipeline and an exhaust pipeline connected with the top of the heat exchange pipeline, and the second gas pipeline is connected with the separating device. The utility model can recycle the tail gas heat of the dryer, and also realize the preheating of the feed liquid, so that the drying rate is accelerated, and the working efficiency of the dryer is improved.
Description
Technical Field
The utility model relates to the field of dryers, in particular to a spray dryer convenient for preheating feed liquid.
Background
Dryers are commonly used as a mechanical device for reducing the moisture of materials using thermal energy for drying the objects. The dryer evaporates moisture (typically moisture or other volatile liquid component) from the material by heating to obtain a solid powder material of a specified moisture content.
At present, the spray dryer on the market adopts a drying device to directly dry the feed liquid to be atomized, the feed liquid is not preheated, the drying speed is relatively slow, and the working efficiency of the dryer is low.
Disclosure of Invention
In view of the above, the utility model provides a spray dryer which is convenient for preheating feed liquid, can preheat the feed liquid of the dryer, quickens the drying rate and improves the working efficiency of the dryer.
The technical scheme adopted for solving the technical problems is as follows: there is provided a spray dryer for facilitating preheating of a feed liquid, comprising: the device comprises a feed liquid preheating device, a drying device connected with the feed liquid preheating device, and a separating device connected with the drying device, wherein hot gas output by the separating device is conveyed into the feed liquid preheating device for preheating, the feed liquid preheating device comprises a shell, a preheating pipeline arranged in the shell, a heat exchange pipeline sleeved on the preheating pipeline, a connecting pipeline connected with the heat exchange pipeline, a second gas pipeline connected with the bottom of the heat exchange pipeline and an exhaust pipeline connected with the top of the heat exchange pipeline, and the second gas pipeline is connected with the separating device.
Further, the shell is rectangular, the inside of the shell is airtight, and a heat preservation layer is arranged in the shell.
Furthermore, the preheating pipeline is formed by connecting a plurality of straight pipes and bent pipes, so that the preheating pipeline is an S-shaped pipeline.
Further, the heat exchange pipelines are provided with a plurality of straight pipelines, the straight pipelines are respectively sleeved on the outer side surfaces of the straight pipes on the preheating pipeline, and the two ends of the heat exchange pipelines are arranged in a sealing mode.
Further, the connecting pipes are provided with a plurality of connecting pipes, and the connecting pipes are vertically connected to the side edges of the two heat exchange pipes, so that the connecting pipes and the heat exchange pipes form an S-shaped passage.
Further, the preheating pipeline further comprises a first feed liquid pipeline arranged at the inlet end of the preheating pipeline and a second feed liquid pipeline arranged at the outlet end of the preheating pipeline.
Further, the drying device comprises a drying main machine, a first air inlet pipeline connected with the side surface of the drying main machine, an atomizer positioned at the top of the drying main machine and a first discharging pipeline connected with the bottom of the drying main machine.
Further, one end of the second feed liquid pipeline is connected with the outlet end of the preheating pipeline, and one end of the second feed liquid pipeline is connected with the atomizer.
Further, the separation device comprises a cyclone separator, a bag filter, a first gas transmission pipeline connected with the cyclone separator and the bag filter, a second discharging pipeline arranged at the bottom of the cyclone separator, and a third discharging pipeline arranged at the bottom of the cyclone separator.
Further, one end of the first discharging pipe is connected to the bottom of the drying main machine, and the other end of the first discharging pipe is connected to the top side wall of the cyclone separator.
The beneficial effects of the utility model are as follows: according to the spray dryer convenient for preheating feed liquid, the feed liquid preheating device is arranged to convey the tail gas with heat output from the bag filter into the heat exchange pipeline through the second gas pipeline, and the preheating pipeline is sleeved in the heat exchange pipeline for heat exchange, so that the feed liquid to be dried in the preheating pipeline is preheated, the tail gas heat of the dryer can be recovered, the drying rate is accelerated after the feed liquid is preheated, and the working efficiency of the dryer is improved.
Drawings
The utility model is further described below with reference to the drawings and examples.
FIG. 1 is a schematic diagram of a spray dryer of the present utility model for facilitating preheating of a feed liquid;
FIG. 2 is a schematic diagram showing the internal structure of the feed liquid preheating device of the present utility model.
The names and the numbers of the parts in the figure are respectively as follows:
a spray dryer 100 for facilitating preheating of the feed liquid;
the device comprises a feed liquid preheating device 1, a shell 11, a preheating pipeline 12, a first feed liquid pipeline 121, a second feed liquid pipeline 122, a heat exchange pipeline 13, a connecting pipeline 14, a second gas transmission pipeline 15 and an exhaust pipeline 16;
the drying device 2, the drying host 21, the first air inlet pipeline 22, the atomizer 23 and the first discharge pipeline 24;
the separation device 3, the cyclone separator 31, the bag filter 32, the first gas transmission pipeline 33, the second discharging pipeline 34 and the third discharging pipeline 35.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the present utility model will now be described in detail with reference to the accompanying drawings. The figure is a simplified schematic diagram illustrating the basic structure of the utility model only by way of illustration, and therefore it shows only the constitution related to the utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1, the present embodiment provides a spray dryer 100 for facilitating preheating of a feed liquid, comprising: a feed liquid preheating device 1, a drying device 2 connected with the feed liquid preheating device 1, and a separating device 3 connected with the drying device 2. The feed liquid preheating device 1 is suitable for preheating the feed liquid to be dried, the drying device 2 is suitable for drying the feed liquid to be dried to form a solid and gas mixture, the separating device 3 is suitable for separating the solid and the gas in the solid and gas mixture, the product is output, the tail gas with heat output by the separating device 3 is suitable for being input into the feed liquid preheating device 1 to preheat the feed liquid to be dried, and the spray dryer 100 which is convenient for preheating the feed liquid can recycle the heat of the tail gas and is used for preheating the feed liquid, so that the drying rate is accelerated, and the working efficiency of the dryer is improved.
As shown in fig. 2, the feed liquid preheating device 1 comprises a shell 11, a preheating pipeline 12 arranged in the shell 11, a heat exchange pipeline 13 sleeved on the preheating pipeline 12, a connecting pipeline 14 connected to the heat exchange pipeline 13, a second gas pipeline 15 connected to the bottom of the heat exchange pipeline 13 and an exhaust pipeline 16 connected to the top of the heat exchange pipeline 13. The shell 11 is rectangular, the inside of the shell 11 is airtight, and an insulating layer is arranged in the shell 11, so that heat loss is reduced. The preheating pipeline 12 is formed by connecting a plurality of straight pipes and bent pipes, so that the preheating pipeline 12 is an S-shaped pipeline, and the preheating pipeline 12 further comprises a first feed liquid pipeline 121 arranged at the inlet end of the preheating pipeline 12 and a second feed liquid pipeline 122 arranged at the outlet end of the preheating pipeline 12. The first feed liquid pipe 121 is connected to a position below the outer side surface of the housing 11, and the first feed liquid pipe 121 is adapted to input feed liquid to be dried into the preheating pipe 12. One end of the second feed liquid pipeline 122 is connected with the outlet end of the preheating pipeline 12, and the other end of the second feed liquid pipeline 122 is connected with the drying device 2 and is suitable for inputting preheated feed liquid to be dried into the drying device 2. The heat exchange pipelines 13 are provided with a plurality of straight pipelines, the heat exchange pipelines 13 are respectively sleeved on the outer side surfaces of a plurality of straight pipes on the preheating pipeline 12, and two ends of the heat exchange pipelines 13 are arranged in a sealing mode. The connecting pipelines 14 are provided with a plurality of connecting pipelines 14, and the connecting pipelines 14 are vertically connected to the side edges of the two heat exchange pipelines 13, so that the connecting pipelines 14 and the heat exchange pipelines 13 form an S-shaped passage, and the heat exchange pipelines 13 are suitable for flowing tail gas with heat. One end of the second gas pipeline 15 is communicated with the bottom of the heat exchange pipeline 13, the other end of the second gas pipeline is connected with the separation device 3, and the second gas pipeline is suitable for conveying tail gas with heat discharged by the separation device into the heat exchange pipeline 13, respectively passes through the heat exchange pipeline 13 and the connecting pipeline 14, and finally outputs from the exhaust pipeline 16, so that heat of the tail gas is recovered, and heat loss is reduced.
Specifically, the drying device 2 includes a drying main machine 21, a first air inlet pipe 22 connected to a cylindrical side surface of the drying main machine 21, an atomizer 23 located at a top position of the drying main machine 21, and a first discharge pipe 24 connected to a bottom of the drying main machine 21; the drying main machine 21 consists of a column body and a cone body, the bottom of the cone body is connected with a first discharging pipeline 24, the first discharging pipeline 24 is connected to the bottom of the drying main machine 21, and the other end of the first discharging pipeline 24 is connected with the separating device 3 and is suitable for outputting dried products; the first air inlet pipe 22 is connected to one side of the column part, and is used for conveying hot air at about 80 ℃ to the interior of the drying main machine 21, and performing heat exchange with atomized liquid drops in the interior of the drying main machine 21, so that the atomized liquid drops are quickly evaporated to form particles; the atomizer 23 is arranged at the top of the drying main machine 21 and is connected with the other end of the second feed liquid pipeline 122, the second feed liquid pipeline 122 is suitable for inputting the feed liquid preheated by the feed liquid preheating device 1, the preheated feed liquid is conveyed by the second feed liquid pipeline 122 and enters the atomizer 23 for atomization, the surface area of the feed liquid is increased, the drying rate is accelerated after the feed liquid is preheated, and the working efficiency of the dryer is improved.
Specifically, the separating device 3 includes a cyclone separator 31 connected to the other end of the first discharging pipe 24, a bag filter 32, a first gas transmission pipe 33 connecting the cyclone separator 31 and the bag filter 32, a second discharging pipe 34 disposed at the bottom of the cyclone separator 31, and a third discharging pipe 35 disposed at the bottom of the cyclone separator 31. The cyclone separator 31 is composed of a column body and a cone body, the cyclone separator 31 is connected with the drying main machine 21 through a first discharging pipeline 24, one end of the first discharging pipeline 24 is connected to the bottom of the drying main machine 21, the other end of the first discharging pipeline is connected to the side wall of the bottom of the cyclone separator 31, and a product dried in the drying main machine 21 enters the cyclone separator 31 through the first discharging pipeline 24 to perform first separation of a solid-gas mixture; the second discharging pipeline 34 is positioned at the bottom of the cone connected with the cyclone separator 31, and the particles dried in the cyclone separator 31 are output to the product through the second discharging pipeline 34. One end of the first gas transmission pipeline 33 is connected to the bottom position of the cyclone separator 31, the other end of the first gas transmission pipeline 33 is connected to the top side wall of the bag filter 32, and a solid and gas mixture containing a small amount of particles is output from the first gas transmission pipeline 33 at the top of the cyclone separator 31 and then enters the bag filter 32 for secondary filtration; the third discharging pipeline 35 is positioned at the bottom of the bag filter 32, and the dried particles in the bag filter 32 are discharged again through the third discharging pipeline 35; the other end of the second gas pipeline 15 is connected to the side wall of the top of the bag filter 32, and since one end of the second gas pipeline 26 is connected to the feed liquid preheating device 1, the feed liquid is input into the heat exchange pipeline 13 and used for preheating the feed liquid to be dried in the preheating pipeline 12, and the tail gas with heat output from the bag filter 32 is conveyed to the feed liquid preheating device 1 through the second gas pipeline 15 and used for preheating the feed liquid.
The spray dryer 100 convenient for preheating feed liquid of the utility model is provided with the feed liquid preheating device 1 to convey the tail gas with heat output from the bag filter 32 into the heat exchange pipeline 13 through the second gas pipeline 15, and the preheating pipeline 12 is sleeved in the heat exchange pipeline 13 for heat exchange, so that the feed liquid to be dried in the preheating pipeline 12 is preheated, the heat of the tail gas of the dryer 100 can be recovered, the preheating of the feed liquid is realized, the drying rate is accelerated, and the working efficiency of the dryer is improved.
In the description of the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
While the foregoing is directed to the preferred embodiment of the present utility model, other and further embodiments of the utility model may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.
Claims (6)
1. A spray dryer for facilitating preheating of a feed liquid, comprising: the device comprises a feed liquid preheating device, a drying device connected with the feed liquid preheating device and a separating device connected with the drying device, wherein hot gas output by the separating device is conveyed into the feed liquid preheating device for preheating, the feed liquid preheating device comprises a shell, a preheating pipeline arranged in the shell, a heat exchange pipeline sleeved on the preheating pipeline, a connecting pipeline connected with the heat exchange pipeline, a second gas pipeline connected with the bottom of the heat exchange pipeline and an exhaust pipeline connected with the top of the heat exchange pipeline, the second gas pipeline is connected with the separating device, the shell is rectangular, the shell is airtight, a heat preservation layer is arranged in the shell, the preheating pipeline is formed by connecting a plurality of straight pipes and bent pipes, the preheating pipeline is an S-shaped pipeline, the heat exchange pipeline is respectively sleeved on the outer side surfaces of the straight pipes on the preheating pipeline, two ends of the heat exchange pipeline are arranged in a sealing mode, and the connecting pipeline is vertically connected with two side edges of the heat exchange pipeline, and the S-shaped pipeline is connected with the S-shaped heat exchange pipeline.
2. The spray dryer for facilitating preheating of a feed liquid of claim 1, wherein the preheating conduit further comprises a first feed liquid conduit disposed at an inlet end of the preheating conduit and a second feed liquid conduit disposed at an outlet end of the preheating conduit.
3. The spray dryer for facilitating preheating of feed liquid according to claim 2, wherein the drying device comprises a drying main, a first air inlet pipeline connected with the side surface of the drying main, an atomizer positioned at the top of the drying main and a first discharge pipeline connected with the bottom of the drying main.
4. A spray dryer for facilitating preheating of a feed liquid according to claim 3, wherein one end of the second feed liquid conduit is connected to the outlet end of the preheating conduit and one end of the second feed liquid conduit is connected to the atomizer.
5. A spray dryer for facilitating preheating of a feed liquid according to claim 3, wherein the separating means comprises a cyclone, a bag filter, a first gas transmission pipe connecting the cyclone and the bag filter, a second discharge pipe provided at the bottom of the cyclone, and a third discharge pipe provided at the bottom of the cyclone.
6. The spray dryer for facilitating preheating of a feed liquid according to claim 5, wherein one end of the first discharge pipe is connected to the bottom of the drying main and the other end is connected to the top side wall of the cyclone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223520256.4U CN219614902U (en) | 2022-12-28 | 2022-12-28 | Spray drier convenient to preheat feed liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223520256.4U CN219614902U (en) | 2022-12-28 | 2022-12-28 | Spray drier convenient to preheat feed liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219614902U true CN219614902U (en) | 2023-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223520256.4U Active CN219614902U (en) | 2022-12-28 | 2022-12-28 | Spray drier convenient to preheat feed liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219614902U (en) |
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2022
- 2022-12-28 CN CN202223520256.4U patent/CN219614902U/en active Active
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