CN210078869U - Multistage spray dryer - Google Patents
Multistage spray dryer Download PDFInfo
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- CN210078869U CN210078869U CN201920596661.3U CN201920596661U CN210078869U CN 210078869 U CN210078869 U CN 210078869U CN 201920596661 U CN201920596661 U CN 201920596661U CN 210078869 U CN210078869 U CN 210078869U
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Abstract
The utility model relates to the technical field of drying machines, in particular to a multistage spray drying machine, which structurally comprises a drying tower, wherein the drying tower is internally provided with a first heating interlayer, a first cooling interlayer, a second heating interlayer, a second cooling interlayer and a drying interlayer from top to bottom in sequence, the first heating interlayer is arranged at a liquid inlet, an outlet of the second cooling interlayer is provided with an atomizer, a spray head of the atomizer faces towards the drying interlayer, a switch valve is arranged between the interlayers and controls the communication state of the interlayers, the tower wall surface where the drying interlayer is arranged comprises an outer tower wall surface and an inner tower wall surface which are mutually overlapped, the inner tower wall surface is a rotatable inner tower wall surface, the communication of the drying interlayer is provided with a hot air pipe, the bottom of the drying interlayer is connected with a guide pipe, the first cooling interlayer and the second cooling interlayer are respectively connected with an exhaust pipe, the material guide pipe is connected with a material receiver, and the multistage spray dryer has the advantage of high drying efficiency.
Description
Technical Field
The utility model relates to a desiccator technical field, concretely relates to multistage spray dryer.
Background
Spray dryers dry liquid materials by atomizing them into contact with hot air, and are used to dry some heat sensitive liquids, suspensions and viscous liquids such as milk, eggs, tannins and pharmaceuticals. Also useful for drying fuels, intermediates, soap powders, inorganic salts, and the like.
The existing spray dryer generally dries atomized liquid materials quickly at one time in a short time, so that the material structure of the liquid materials can be damaged; in addition, the prior art mainly only relies on atomization effect and hot-blast volume to improve drying efficiency, and atomization effect and hot-blast volume need great energy consumption, are not convenient for practice thrift manufacturing cost.
Disclosure of Invention
There is above-mentioned technical problem to prior art, the utility model provides a multistage spray dryer, this multistage spray dryer have the advantage that drying efficiency is high.
In order to achieve the above object, the utility model provides a following technical scheme:
provides a multi-stage spray dryer, which comprises a drying tower, wherein the drying tower is internally provided with a first heating interlayer, a first cooling interlayer, a second heating interlayer, a second cooling interlayer and a drying interlayer from top to bottom in sequence, the first heating interlayer is arranged at the liquid inlet, the output port of the second cooling interlayer is provided with an atomizer, the spray head of the atomizer faces the drying interlayer, a switch valve is arranged between the interlayers and controls the communication state of the interlayers, the tower wall surface where the drying interlayer is located comprises an outer tower wall surface and an inner tower wall surface which are mutually overlapped, the inner tower wall surface is a rotatable inner tower wall surface, the drying interlayer is communicated with a hot air pipe, the bottom of the drying interlayer is connected with a material guide pipe, the first cooling interlayer and the second cooling interlayer are respectively connected with an exhaust pipe, and the material guide pipe is connected with a material receiver.
The first heating interlayer and the second heating interlayer are both internally provided with steam heaters which provide heating heat sources.
Wherein the steam heater is a fin steam heater.
The side walls of the first cooling interlayer and the second cooling interlayer are respectively provided with a cooling liquid flow passage, and the cooling liquid flow passages provide cooling cold sources for the first cooling interlayer and the second cooling interlayer.
And the inner side wall surfaces of the first cooling interlayer and the second cooling interlayer are both inner side wall surfaces with wavy lines.
The drying interlayer is formed by connecting a round platform-shaped tower body and a cylindrical tower body, the round platform-shaped tower body is located above the drying interlayer, the cylindrical tower body comprises an outer tower wall surface and an inner tower wall surface, the inner tower wall surface is a rotatable inner tower wall surface, and the hot air pipe is connected to the round platform-shaped tower body.
The utility model has the advantages that:
the first heating interlayer heats the liquid material firstly, the heated liquid material evaporates partial water in the first cooling interlayer, the liquid material continues to be processed in the second heating interlayer and the second cooling interlayer, partial water is evaporated again, the atomizer atomizes the liquid material evaporated partial water, the drying interlayer quickly dries the atomized liquid material into particles, and the hierarchical drying mode can avoid the influence on the material effect of the material due to the too high drying speed; and the inner wall of the tower where the drying interlayer is located is a rotating inner wall, so that hot air and liquid materials generate certain collision, the contact between the liquid materials and the hot air is increased, the drying efficiency is improved, and the production cost is favorably saved.
Drawings
Fig. 1 is a schematic structural diagram of a multistage spray dryer of the present invention.
FIG. 2 is a schematic structural view of a multi-stage spray dryer of the present invention
Reference numerals
A drying tower 1; a first heating interlayer 2; the first cooling medium layer 3; a second heating interlayer 4; a second cooling medium layer 5; a drying interlayer 6, a truncated cone-shaped tower body 61 and a cylindrical tower body 62; a liquid inlet 7; an atomizer 8; the valve 9 is opened and closed; an outer tower wall 11; an inner tower wall 12; a hot air duct 13; a material guide pipe 14; an exhaust pipe 15; a receiver 16; a coolant flow passage 17; wave lines 18; steam heater 19
Detailed Description
The multi-stage spray dryer of the embodiment is shown in fig. 1, and comprises a drying tower 1, the drying tower 1 is sequentially divided into a first heating interlayer 2, a first cooling interlayer 3, a second heating interlayer 4, a second cooling interlayer 5 and a drying interlayer 6 from top to bottom, the first heating interlayer 2 is arranged at a liquid inlet 7, an output port of the second cooling interlayer 5 is provided with an atomizer 8, a spray head of the atomizer 8 faces the drying interlayer 6, a switch valve 9 is arranged between the interlayers, the switch valve 9 controls the communication state of the interlayers, the tower wall where the drying interlayer 6 is located comprises an outer tower wall 11 and an inner tower wall 12 which are mutually overlapped, the inner tower wall 12 is a rotatable inner tower wall 12, the drying interlayer 6 is communicated with a hot air pipe 12, the bottom of the drying interlayer 6 is connected with a material guide pipe 14, the first cooling interlayer 3 and the second cooling interlayer 5 are respectively connected with an exhaust pipe 15, the exhaust pipe 15 is used for exhausting steam, the material guide pipe 14 is connected with a material receiver 16.
Wherein, steam heater 19 is arranged in first heating interlayer 4 and second heating interlayer 6, and steam heater 19 provides the heating heat source, and steam heater 19 is fin steam heater.
The side walls of the first cooling interlayer 3 and the second cooling interlayer 5 are provided with cooling liquid flow passages 17, and the cooling liquid flow passages 17 provide cooling cold sources for the first cooling interlayer 3 and the second cooling interlayer 5.
Wherein, the inner side wall surfaces of the first cooling interlayer 3 and the second cooling interlayer 5 are the inner side wall surfaces of the wavy lines 18, so that the retention time is increased, and the steam moisture is fully evaporated.
The drying interlayer 6 is formed by connecting a truncated cone-shaped tower body 61 and a cylindrical tower body 62, the truncated cone-shaped tower body 61 is positioned above the cylindrical tower body 62, the cylindrical tower body 62 comprises an outer tower wall surface 11 and an inner tower wall surface 12, the inner tower wall surface 11 is a rotatable inner tower wall surface 11, the hot air pipe 13 is connected to the truncated cone-shaped tower body 61, and the hot air pipe 13 is inserted into the truncated cone-shaped tower body 61 and can be prevented from rotating to block the hot air pipe 13.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (6)
1. A multi-stage spray dryer is characterized in that: including the drying tower, from top to bottom divide in proper order and establish to first heating intermediate layer, first cooling intermediate layer, second heating intermediate layer, second cooling intermediate layer and dry intermediate layer in the drying tower, feed liquor mouth is located to first heating intermediate layer, the delivery outlet of second cooling intermediate layer is equipped with the atomizer, the atomising head orientation of atomizer dry intermediate layer is equipped with ooff valve between each intermediate layer, ooff valve control each intermediate layer intercommunication state, the tower wall face at dry intermediate layer place includes outer tower wall face and interior tower wall face of mutual coincide, interior tower wall face is rotatable interior tower wall face, the intercommunication in dry intermediate layer has the hot-blast main, the passage is connected to the bottom in dry intermediate layer, first cooling intermediate layer with second cooling intermediate layer is connected with the blast pipe respectively, the passage is connected with the glassware that connects.
2. The multi-stage spray dryer of claim 1, wherein: and steam heaters are arranged in the first heating interlayer and the second heating interlayer and provide heating heat sources.
3. The multi-stage spray dryer of claim 2, wherein: the steam heater is a fin steam heater.
4. The multi-stage spray dryer of claim 1, wherein: the side walls of the first cooling interlayer and the second cooling interlayer are respectively provided with a cooling liquid flow passage, and the cooling liquid flow passages provide cooling cold sources for the first cooling interlayer and the second cooling interlayer.
5. The multi-stage spray dryer of claim 4, wherein: the inner side wall surfaces of the first cooling interlayer and the second cooling interlayer are both inner side wall surfaces with wavy lines.
6. The multi-stage spray dryer of claim 1, wherein: the drying interlayer is formed by connecting a round platform-shaped tower body and a cylindrical tower body, the round platform-shaped tower body is located above the drying interlayer, the cylindrical tower body comprises an outer tower wall surface and an inner tower wall surface, and the hot air pipe is connected to the round platform-shaped tower body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920596661.3U CN210078869U (en) | 2019-04-28 | 2019-04-28 | Multistage spray dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920596661.3U CN210078869U (en) | 2019-04-28 | 2019-04-28 | Multistage spray dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210078869U true CN210078869U (en) | 2020-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920596661.3U Active CN210078869U (en) | 2019-04-28 | 2019-04-28 | Multistage spray dryer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210078869U (en) |
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2019
- 2019-04-28 CN CN201920596661.3U patent/CN210078869U/en active Active
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