CN215523927U - Rotary flash dryer and system capable of adjusting particle size of product - Google Patents
Rotary flash dryer and system capable of adjusting particle size of product Download PDFInfo
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- CN215523927U CN215523927U CN202121227604.1U CN202121227604U CN215523927U CN 215523927 U CN215523927 U CN 215523927U CN 202121227604 U CN202121227604 U CN 202121227604U CN 215523927 U CN215523927 U CN 215523927U
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Abstract
The utility model discloses a spin flash dryer and a system capable of adjusting the particle size of a product, wherein the spin flash dryer comprises a feeder, a scattering crusher, a hot air inlet, a drying cylinder, a grading cone, a base and a discharge hole, the drying cylinder is vertically arranged on the base, the feeder is arranged at the outer side of the bottom of the drying cylinder, the scattering crusher is arranged at the bottom of the drying cylinder and is lower than the feed inlet of the feeder, and the scattering crusher is used for scattering and crushing the material; the hot air inlet is arranged below the breaking device, the grading cone is rotatably arranged at the top of the drying cylinder body, and the discharge hole is arranged above the grading cone. The grading cone comprises an upper annular surface, a lower disk surface, a transmission rod and a plurality of grading grids, the lower disk surface is disc-shaped, the diameter of the lower disk surface is smaller than the inner diameter of the upper annular surface, the grading grids are evenly arranged between the upper annular surface and the lower disk surface, the bottom end of the transmission rod is connected with the lower disk surface, and the top end of the transmission rod is connected with a motor. The utility model can produce products with different grain diameters, and the product uniformity is better.
Description
Technical Field
The utility model relates to the technical field of drying equipment, in particular to a rotary flash dryer and a rotary flash system capable of adjusting the particle size of a product.
Background
The spin flash dryer is a drying device with high heat exchange efficiency and good energy-saving effect, and the drying principle is as follows (the flow diagram is shown in figure 1): air in the environment is blown into a drying system by a blower, is heated by a heater and then is screwed into an annular space at the bottom of the spin flash dryer at a proper speed, and then enters the dryer in the tangential direction and rises spirally; meanwhile, materials are quantitatively added into the dryer through a feeder and are scattered and crushed by a stirring blade rotating at a high speed, the scattered materials and hot air perform sufficient and efficient mass and heat transfer, the dried powdery materials are conveyed to a cyclone separator along with hot air, finished products are collected and packaged, and tail gas is further processed by a bag-type dust collector and then is exhausted.
The upper part of the spin flash dryer is provided with an annular baffle, namely a grading baffle ring, and the grading baffle ring is used for intercepting large materials which do not reach the moisture requirement (namely, have larger specific gravity) so as to ensure the drying effect and the particle size of the product. Although the existing classification baffle ring of the spin flash dryer screens the particle size of the product, the classification baffle ring still has the following two limitations:
(1) the particle size of the product is not uniform: the grading baffle ring can only realize preliminary screening, airflow disturbance in the rotating tower and particle collision, so that massive wet materials in partial products pass through the grading baffle ring, and the particle size of the products exceeds the design expectation.
(2) The particle size of the product cannot be directly adjusted: once the diameter of the grading ring is selected, the particle size of a dried product is determined; if the particle size of the product needs to be adjusted, the machine needs to be stopped and the grading ring needs to be replaced.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a rotary flash dryer and a rotary flash dryer system capable of adjusting the particle size of a product, which can produce products with different particle sizes and have better product uniformity.
The technical scheme adopted by the utility model is as follows:
a rotary flash evaporation dryer capable of adjusting the particle size of a product comprises a feeder, a breaking-up crusher, a hot air inlet, a drying cylinder, a grading cone, a base and a discharge hole, wherein the drying cylinder is vertically arranged on the base; the hot air inlet is arranged below the breaking-up crusher, the grading cone is rotatably arranged at the top of the drying cylinder, and the discharge hole is arranged above the grading cone.
The grading cone comprises an upper ring surface, a lower disc surface, a transmission rod and a plurality of grading grids, wherein the upper ring surface is annular, the lower disc surface is disc-shaped, the diameter of the lower disc surface is smaller than the inner diameter of the upper ring surface, the grading grids are uniformly arranged between the upper ring surface and the lower disc surface, the bottom end of the transmission rod is connected with the lower disc surface, and the top end of the transmission rod is connected with a motor; the motor is used for driving the grading cone to rotate, so that materials with high ascending speed pass through the grading grating, and materials with low ascending speed are intercepted by the grading grating, so that the materials fall to the bottom of the drying cylinder body and are further crushed by the scattering crusher.
Further, the motor is a variable frequency motor, when the rotating speed of the variable frequency motor is higher, the rotating speed of the grading cone is higher, the speed of the material allowed to pass through is higher, and the grain size of the material allowed to pass through is smaller; similarly, when the rotating speed of the variable frequency motor is slower, the rotating speed of the grading cone is slower, the speed of the material allowed to pass through is lower, and the grain size of the material allowed to pass through is larger.
Furthermore, the grading grids are arranged in a detachable mode, namely the spacing of the grading grids can be adjusted, and when the spacing is larger, the speed of the materials allowed to pass through is lower, namely the particle size of the materials allowed to pass through is larger; when the spacing is smaller, the higher the velocity of the material allowed to pass, i.e., the smaller the particle size of the material allowed to pass.
Further, the breaking crusher comprises a stirring blade and a second motor, wherein the second motor drives the stirring blade to rotate at a high speed so as to break up and crush the materials.
A spin flash drying system comprises the spin flash dryer, an air blower, a heater and a cyclone separator, wherein the air blower, the heater and a hot air inlet of the spin flash dryer are sequentially connected respectively, and the cyclone separator is connected with a discharge hole of the spin flash dryer.
Further, spin flash drying system still includes sack cleaner and draught fan, the air intake connection of sack cleaner the air outlet of cyclone, the air outlet of sack cleaner is connected the draught fan, the sack cleaner is used for filtering cyclone exhaust tail gas.
The utility model has the beneficial effects that:
the upper part of the spin flash dryer is provided with the grading cone, the grading cone is driven by a motor to rotate at a high speed, and the rotating speed can be adjusted according to the requirement of the particle size. When the rotary flash evaporation dryer normally operates, materials ascend with rotary airflow, the ascending speed of the materials with large particle sizes is slow, and the ascending speed of the materials with small particle sizes is fast; meanwhile, the grading cone drives the grading grid to rotate at a high speed, and the materials with high ascending speed are discharged out of the rotary flash dryer through the grading grid; the material with low rising speed is intercepted by the grading grating, falls to the bottom of the spin flash dryer, is further crushed by the scattering crusher until the particle size meets the requirement, and then can be discharged out of the spin flash dryer through the grading cone. In addition, by adjusting the rotating speed of the grading cone, products with different grain diameters can be produced, and the product uniformity is good.
Drawings
FIG. 1 is a schematic flow diagram of a conventional spin flash drying system;
FIG. 2 is a schematic diagram of a spin flash dryer according to example 1 of the present invention;
FIG. 3 is a schematic diagram showing the structure of a stepped cone in example 1 of the present invention;
reference numerals: 1-a feeder, 2-a breaking-up crusher, 3-a hot air inlet, 4-a drying cylinder, 5-a grading cone, 6-a base, 7-a discharge hole and an M-motor.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, specific embodiments of the present invention will now be described. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 2, the embodiment provides a spin flash dryer capable of adjusting product particle size, which includes a feeder 1, a breaker 2, a hot air inlet 3, a drying cylinder 4, a grading cone 5, a base 6 and a discharge port 7, wherein the drying cylinder 4 is vertically disposed on the base 6, the feeder 1 is disposed at the outer side of the bottom of the drying cylinder 4, the breaker 2 is disposed at the bottom of the drying cylinder 4, and is lower than the feed port of the feeder 1, and the breaker 2 is used for breaking up and crushing materials; the hot air inlet 3 is arranged below the breaking-up crusher 2, the grading cone 5 is rotatably arranged at the top of the drying cylinder 4, and the discharge hole 7 is arranged above the grading cone.
As shown in fig. 3, the grading cone 5 comprises an upper ring surface, a lower disk surface, a transmission rod and a plurality of grading grids, wherein the upper ring surface is circular, the lower disk surface is disc-shaped, the diameter of the lower disk surface is smaller than the inner diameter of the upper ring surface, the grading grids are uniformly arranged between the upper ring surface and the lower disk surface, the bottom end of the transmission rod is connected with the lower disk surface, the top end of the transmission rod is connected with a motor, and the motor is used for driving the grading cone 5 to rotate.
The working principle of the rotary flash evaporation dryer is as follows:
when the rotary flash evaporation dryer normally operates, materials ascend with rotary airflow, the ascending speed of the materials with large particle sizes is slow, and the ascending speed of the materials with small particle sizes is fast; meanwhile, the grading cone 5 drives the grading grid to rotate at a high speed, and the materials with high rising speed are discharged out of the rotary flash dryer through the grading grid; the material with slow rising speed is intercepted by the grading grid, falls to the bottom of the spin flash dryer, is further crushed by the scattering crusher 2 until the particle size meets the requirement, and then can be discharged out of the spin flash dryer through the grading cone 5.
Preferably, the motor is a variable frequency motor, and the particle size of the product is adjusted by adjusting the rotating speed of the grading cone 5 through the variable frequency motor. When the rotating speed of the variable frequency motor is faster, the rotating speed of the grading cone 5 is faster, the speed of the material allowed to pass is higher, and the grain size of the material allowed to pass is smaller; similarly, when the rotating speed of the variable frequency motor is slower, the rotating speed of the grading cone 5 is slower, and the speed of the material allowed to pass through is lower, namely the grain size of the material allowed to pass through is larger.
Preferably, the grading grids are detachably arranged, that is, the spacing between the grading grids can be adjusted, and when the spacing is larger, the speed of the material allowed to pass through is lower, that is, the particle size of the material allowed to pass through is larger; when the spacing is smaller, the higher the velocity of the material allowed to pass, i.e., the smaller the particle size of the material allowed to pass.
Preferably, the breaker 2 includes a stirring blade and a second motor that drives the stirring blade to rotate at a high speed to break up and crush the material.
Example 2
This example is based on example 1:
the embodiment provides a spin flash drying system, including the spin flash dryer of embodiment 1, still include air-blower, heater and cyclone, wherein the hot-blast import 3 of air-blower, heater and spin flash dryer connects gradually respectively, and cyclone connects spin flash dryer's discharge gate 7.
Preferably, the spin flash drying system further comprises a bag-type dust collector and an induced draft fan, wherein an air inlet of the bag-type dust collector is connected with an air outlet of the cyclone separator, an air outlet of the bag-type dust collector is connected with the induced draft fan, and the bag-type dust collector is used for filtering tail gas discharged by the cyclone separator.
The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the utility model is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the utility model as defined by the appended claims.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally placed when the present invention is used, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either a wired or wireless connection.
Claims (6)
1. The rotary flash evaporation dryer capable of adjusting the particle size of a product is characterized by comprising a feeder (1), a breaking-up crusher (2), a hot air inlet (3), a drying cylinder (4), a grading cone (5), a base (6) and a discharge hole (7), wherein the drying cylinder (4) is vertically arranged on the base (6), the feeder (1) is arranged at the outer side of the bottom of the drying cylinder (4), the breaking-up crusher (2) is arranged at the bottom of the drying cylinder (4) and is lower than a feed inlet of the feeder (1), and the breaking-up crusher (2) is used for breaking up and crushing the material; the hot air inlet (3) is arranged below the breaking-up crusher (2), the grading cone (5) is rotatably arranged at the top of the drying cylinder (4), and the discharge hole (7) is arranged above the grading cone;
the grading cone (5) comprises an upper ring surface, a lower disc surface, a transmission rod and a plurality of grading grids, wherein the upper ring surface is annular, the lower disc surface is disc-shaped, the diameter of the grading grids is smaller than the inner diameter of the upper ring surface, the grading grids are uniformly arranged between the upper ring surface and the lower disc surface, the bottom end of the transmission rod is connected with the lower disc surface, and the top end of the transmission rod is connected with a motor; the motor is used for driving the grading cone (5) to rotate, so that materials with high ascending speed pass through the grading grating, and materials with low ascending speed are intercepted by the grading grating, so as to fall to the bottom of the drying cylinder body (4), and are further crushed by the breaking-up crusher (2).
2. The spin flash dryer capable of adjusting the product particle size according to claim 1, wherein the motor is a variable frequency motor, and when the rotating speed of the variable frequency motor is higher, the rotating speed of the grading cone (5) is higher, so that the material passing through is higher, namely the particle size of the material passing through is smaller; similarly, when the rotating speed of the variable frequency motor is slower, the rotating speed of the grading cone (5) is slower, and the speed of the material allowed to pass through is lower, namely the grain size of the material allowed to pass through is larger.
3. A rotary flash dryer capable of adjusting product particle size according to claim 1, wherein the grading grid is removable, i.e. the spacing of the grading grid can be adjusted, and when the spacing is larger, the lower the material velocity is allowed to pass, i.e. the larger the particle size of the material is allowed to pass; when the spacing is smaller, the higher the velocity of the material allowed to pass, i.e., the smaller the particle size of the material allowed to pass.
4. A rotary flash dryer capable of adjusting product particle size according to claim 1, wherein the breaker (2) comprises a stirring blade and a second motor, and the second motor drives the stirring blade to rotate at high speed to break up and crush the material.
5. A spin flash drying system capable of adjusting the product particle size is characterized by comprising the spin flash dryer capable of adjusting the product particle size, a blower, a heater and a cyclone separator, wherein the blower, the heater and a hot air inlet (3) of the spin flash dryer are respectively connected in sequence, and the cyclone separator is connected with a discharge hole (7) of the spin flash dryer.
6. The spin flash drying system capable of adjusting the particle size of a product according to claim 5, further comprising a bag-type dust collector and an induced draft fan, wherein an air inlet of the bag-type dust collector is connected with an air outlet of the cyclone separator, an air outlet of the bag-type dust collector is connected with the induced draft fan, and the bag-type dust collector is used for filtering tail gas discharged from the cyclone separator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121227604.1U CN215523927U (en) | 2021-06-02 | 2021-06-02 | Rotary flash dryer and system capable of adjusting particle size of product |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121227604.1U CN215523927U (en) | 2021-06-02 | 2021-06-02 | Rotary flash dryer and system capable of adjusting particle size of product |
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| CN215523927U true CN215523927U (en) | 2022-01-14 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114396763A (en) * | 2022-01-25 | 2022-04-26 | 山东齐沣和润生物科技有限公司 | Drying equipment for calcium formate production and using method thereof |
| CN115451658A (en) * | 2022-09-01 | 2022-12-09 | 德州凯密迪化工有限公司 | Flash distillation desiccator is used in calcium hypochlorite processing production |
| CN116608675A (en) * | 2023-06-19 | 2023-08-18 | 常州市范群干燥设备有限公司 | Flash evaporation drying equipment |
-
2021
- 2021-06-02 CN CN202121227604.1U patent/CN215523927U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114396763A (en) * | 2022-01-25 | 2022-04-26 | 山东齐沣和润生物科技有限公司 | Drying equipment for calcium formate production and using method thereof |
| CN115451658A (en) * | 2022-09-01 | 2022-12-09 | 德州凯密迪化工有限公司 | Flash distillation desiccator is used in calcium hypochlorite processing production |
| CN116608675A (en) * | 2023-06-19 | 2023-08-18 | 常州市范群干燥设备有限公司 | Flash evaporation drying equipment |
| CN116608675B (en) * | 2023-06-19 | 2023-10-24 | 常州市范群干燥设备有限公司 | Flash evaporation drying equipment |
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