CN220229766U - Flash dryer - Google Patents
Flash dryer Download PDFInfo
- Publication number
- CN220229766U CN220229766U CN202321950357.7U CN202321950357U CN220229766U CN 220229766 U CN220229766 U CN 220229766U CN 202321950357 U CN202321950357 U CN 202321950357U CN 220229766 U CN220229766 U CN 220229766U
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- shell
- cavity
- crushing
- hollow outer
- outer shaft
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- 239000000463 material Substances 0.000 claims abstract description 40
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 125000006850 spacer group Chemical group 0.000 claims abstract description 12
- 238000004140 cleaning Methods 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 230000007246 mechanism Effects 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 4
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000001035 drying Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 241000037488 Coccoloba pubescens Species 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Landscapes
- Crushing And Pulverization Processes (AREA)
Abstract
The flash dryer comprises a motor support and a shell, wherein the shell is supported above the motor support through a supporting seat, a hollow outer shaft and an inner shaft are arranged in the supporting seat, two motors are arranged on the motor support and are respectively in transmission connection with the lower ends of the hollow outer shaft and the inner shaft, the upper ends of the hollow outer shaft and the inner shaft are respectively inserted into the shell, and crushing frames are respectively arranged at the upper ends of the inner shaft and the hollow outer shaft and are respectively positioned in the shell; an air impeller is arranged at the inner bottom of the shell on the hollow outer shaft; the lower part of the shell is provided with a spacer bush, the lower part of the shell is divided into a crushing inner cavity and an air inlet outer cavity, the bottoms of the crushing inner cavity and the air inlet outer cavity are communicated with each other, and the crushing frame and the upper part of the air impeller are respectively inserted into the crushing inner cavity through clearance fit; a feed inlet is arranged at one side of the middle part of the shell; an air inlet is arranged at one side of the lower part of the shell and is communicated with the bottom of the crushing inner cavity through an air inlet outer cavity; an air outlet is arranged at the top of the shell. The beneficial effects are that: the crushing effect is good, long service life, and the air intake can not be blocked by the material during operation, guarantees that equipment can work for a long time.
Description
Technical Field
The utility model belongs to the field of flash drying, and particularly relates to a flash dryer.
Background
In the flash drying field, the flash dryer is characterized in that materials enter the dryer from a screw feeder, and under the strong action of a rotary stirring paddle, strong shearing, blowing and floating and rotating actions are generated on the materials, so that the materials are micronized by centrifugation, shearing, collision and friction, and mass and heat transfer are enhanced. At the bottom of the dryer, the materials are crushed rapidly, particles with smaller granularity are lifted by the rotating air flow clamp, and the particles are further fully contacted with hot air in the lifting process, heated and dried. However, the method has the defects of insufficient material crushing, high energy consumption, low heat utilization rate, easy blockage of an air inlet and the like in the process.
Publication number CN210663582U discloses an energy-saving flash drying device, and the inside of flash dryer sets up installs broken mechanism, is connected with feed mechanism on the circumference lateral wall of flash dryer, and the bottom of flash dryer passes through the air-supply line and links to each other with electric heat fan, and the top of flash dryer passes through the exhaust pipe and links to each other with cyclone, cyclone passes through the exhaust pipe and links to each other with the pocket type filter, be provided with waste heat utilization mechanism between pocket type filter and the flash dryer.
The flash drying device has the following problems: 1. the crushing structure is directly connected with a motor arranged at the upper end of the flash evaporation dryer, and heat in the flash evaporation dryer can be rapidly conducted to the motor to influence the service life of the motor; 2. the large leaf crushing paddles and the small leaf crushing paddles with different densities are arranged on the same rotating shaft in the crushing mechanism, so that the crushing of materials is not facilitated; 3. the equipment air inlet pipe is easy to be blocked by the broken materials of the bottom breaking paddles, which is not beneficial to long-time use of the equipment.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a flash dryer with good crushing effect and long service life.
In order to solve the problems, the utility model adopts the following technical scheme:
the flash dryer comprises a motor support and a shell, wherein the shell is supported above the motor support through a supporting seat, a hollow outer shaft and an inner shaft which are nested and rotatable are arranged in the supporting seat along the vertical direction, two motors are arranged on the motor support and are respectively connected with the lower ends of the hollow outer shaft and the inner shaft through transmission mechanisms in a transmission way, the upper ends of the hollow outer shaft and the inner shaft are respectively inserted into the shell, and crushing frames which are arranged up and down are respectively arranged in the shell at the upper ends of the inner shaft and the hollow outer shaft and used for crushing the input materials; an impeller is arranged at the inner bottom of the shell on the hollow outer shaft and used for scattering large-particle materials falling down;
the lower part of the shell is provided with a spacer bush which divides the lower part of the shell into a crushing inner cavity and an air inlet outer cavity, the crushing frame and the upper part of the air impeller are respectively inserted into the crushing inner cavity through clearance fit, and the bottoms of the crushing inner cavity and the air inlet outer cavity are mutually communicated;
a feeding port is arranged on one side of the middle part of the shell, and a screw conveyer is arranged in the feeding port and used for primarily cutting added materials;
an air inlet is arranged at one side of the lower part of the shell, and is communicated with the bottom of the crushing inner cavity through an air inlet outer cavity and used for introducing high-temperature and high-pressure hot air;
an air outlet is arranged at the top of the shell and is used for discharging crushed and dried materials.
Preferably, the shell is formed by sequentially connecting a conical upper shell, a cylindrical middle shell and a lower shell, the feeding hole is formed in the middle shell, and the air inlet is formed in the lower shell so as to be convenient to install.
As further preferable, the lower shell is formed by connecting an upper cover and a base which are arranged up and down, and the spacer bush is fixed in the upper cover and is kept with a certain gap between the spacer bush and the base for communicating the crushing inner cavity and the air inlet outer cavity; the air inlet is radially fixed on one side of the upper cover, and the upper end of the supporting seat is connected with the flange at the lower end of the base through bolts.
As a further preferable mode, a positioning sleeve is fixed at the upper end of a central hole of the base, the hollow outer shaft penetrates through the positioning sleeve through clearance fit, and a lubricating bearing bush is arranged between the positioning sleeve and the hollow outer shaft; the lower end of the center sleeve of the wind impeller is sleeved on the positioning sleeve, and rotary seal is arranged between the center sleeve and the positioning sleeve.
As a further preferable mode, the base and the hollow outer shaft form an annular oil injection cavity, an oil inlet is formed in one side of the oil injection cavity, the supporting seat and the hollow outer shaft form an annular lower oil cavity, an oil outlet is formed in one side of the lower oil cavity, and the oil injection cavity and the lower oil cavity are communicated through an oil penetrating hole formed in the upper end of the supporting seat so as to facilitate cooling oil to be introduced into the power part of the flash dryer.
As a further preference, a cleaning hole is arranged on the bottom surface of the base, and a plug is arranged in the cleaning hole so as to be convenient for cleaning residual materials.
The beneficial effects of the utility model are as follows:
1. because the two motors are arranged on the motor bracket and are respectively connected with the lower ends of the hollow outer shaft and the inner shaft in a transmission way, the upper ends of the inner shaft and the hollow outer shaft are respectively provided with the crushing frames which are arranged up and down in the shell, and the crushing frames at the upper ends of the inner shaft and the hollow outer shaft are respectively controlled by the two motors, so that the two motors can rotate at different rotating speeds and directions, and various materials can be crushed; the crushing effect is good.
2. Because the air impeller is arranged at the inner bottom of the shell on the hollow outer shaft, the fallen large particle materials are scattered through the rotation of the air impeller; the crushing effect on the materials can be further improved, and the materials are discharged through an air outlet arranged at the top of the shell;
3. because two motors are respectively connected with the lower ends of the hollow outer shaft and the inner shaft through the transmission mechanism, the heat conduction to the motors in the working process of the flash dryer can be effectively avoided, and the service life of the motors is ensured.
4. Because the lower part of the shell is provided with the spacer bush, the lower part of the shell is divided into the crushing inner cavity and the air inlet outer cavity by the spacer bush, and the bottoms of the crushing inner cavity and the air inlet outer cavity are communicated with each other; an air inlet is arranged at one side of the lower part of the shell, and is communicated with the bottom of the crushing inner cavity through an air inlet outer cavity and used for introducing high-temperature and high-pressure hot air; therefore, the air inlet can not be blocked by materials during operation, and the equipment can be ensured to work for a long time.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a partial enlarged view of fig. 1.
Fig. 3 is an enlarged view of the section I of fig. 2.
Fig. 4 is a schematic structural view of a wind turbine.
Detailed Description
As shown in fig. 1-4, the flash dryer related to the utility model comprises a motor support 1 and a shell, wherein the shell is fixedly supported above the motor support 1 through a supporting seat 4, a hollow outer shaft 16 and an inner shaft 17 which are mutually nested and rotatable are arranged in the supporting seat 4 along the vertical direction, two motors which are respectively a first motor 3 and a second motor 18 are arranged on two sides of the motor support 1, the output end of the first motor 3 is in transmission connection with the lower end of the hollow outer shaft 16 through a belt transmission mechanism 2, and the output end of the second motor 18 is in transmission connection with the lower end of the inner shaft 17 through a belt transmission mechanism 19.
The supporting seat 4 is composed of a supporting sleeve 41 and connecting seats 42 welded at two ends of the supporting sleeve 41, the hollow outer shaft 16 is respectively installed in the connecting seats 42 at two ends of the supporting sleeve 41 through bearings, the inner shaft 17 penetrates through the hollow outer shaft 16 and is installed in the hollow outer shaft 16 through bearings arranged at two ends of the hollow outer shaft 16, the upper ends of the hollow outer shaft 16 and the inner shaft 17 are respectively inserted into a machine shell, and crushing frames 6 which are arranged up and down are respectively installed at the upper ends of the inner shaft 17 and the hollow outer shaft 16 in the machine shell through key connection and used for crushing input materials. An impeller 15 is provided on the hollow outer shaft 16 at the bottom of the housing for breaking up large particulate material falling down.
The lower part of the machine shell is provided with a spacer bush 13, the lower part of the machine shell is divided into a crushing inner cavity and an air inlet outer cavity by the spacer bush 13, the crushing frame 6 and the upper part of the air impeller 15 are respectively inserted into the crushing inner cavity through clearance fit, and the bottoms of the crushing inner cavity and the air inlet outer cavity are mutually communicated. The crushing frame 6 is composed of a central sleeve 61 and a plurality of pairs of crushing rods 62 symmetrically and fixedly connected to two sides of the central sleeve, and in this embodiment, three pairs of crushing rods are taken as an example. The impeller 15 is composed of a central sleeve 151 and arc-shaped blades 152 circumferentially and uniformly distributed on the outer edge of the central sleeve, and the outline of the lower edge of each arc-shaped blade 152 is consistent with that of the inner bottom of the machine shell, so that materials are prevented from accumulating, and residual materials at the bottom are conveniently emptied.
The casing is formed by sequentially connecting a conical upper casing 11, a cylindrical middle casing 7 and a lower casing 5 through bolts, a feeding hole 9 is formed in one side of the middle casing 7 in the middle of the casing, and a screw conveyer 8 is arranged in the feeding hole 9 and used for primarily cutting added materials. The lower shell 5 is formed by connecting an upper cover 52 and a base 51 which are arranged up and down through bolts, an air inlet 14 is fixed on one side of the upper cover 52 at the lower part of the shell along the radial direction, and the air inlet 14 is communicated with the bottom of the crushing inner cavity through an air inlet outer cavity and is used for introducing high-temperature and high-pressure hot air. The spacer bush 13 is welded in the upper opening of the upper cover 52 and a certain gap is reserved between the spacer bush and the base 51, so as to be used for communicating the crushing inner cavity and the air inlet outer cavity; the upper end of the supporting seat 4 is connected with the flange at the lower end of the base 51 through bolts.
An air outlet 12 is arranged at the top of the upper shell 11 of the shell and is used for discharging crushed and dried materials. An observation hole is formed in one side of the middle shell 7, and an observation window 10 is arranged in the observation hole, so that the blanking and crushing conditions in the shell can be observed conveniently.
A positioning sleeve 24 is welded at the upper end of a central hole of the base 51, the hollow outer shaft 16 penetrates through the positioning sleeve 24 through clearance fit, and a lubricating bearing bush 26 is respectively arranged between the positioning sleeve 24 and the base and the hollow outer shaft 16; the lower end of the center sleeve of the impeller 15 is sleeved on the positioning sleeve 24, and a rotary seal 25 is arranged between the lower end and the positioning sleeve.
The base forms an annular oil injection cavity 20 with the hollow outer shaft 16, an oil inlet 201 is formed on one side of the oil injection cavity, the supporting seat 4 forms an annular lower oil cavity 22 with the hollow outer shaft 16, an oil outlet 221 is formed on one side of the lower oil cavity, and the oil injection cavity 20 and the lower oil cavity 22 are communicated through an oil penetrating hole 421 formed on a connecting seat at the upper end of the supporting seat 4 so as to facilitate cooling oil to be introduced into the power part of the flash dryer.
Cleaning holes are uniformly distributed on the bottom surface of the base 51 along the circumferential direction, and plugs 21 are arranged in each cleaning hole through threads so as to be convenient for cleaning residual materials. The upper end of the inner shaft 17 is connected with a positioning nut 23 through threads, and the positioning nut 23 is pressed on the adjacent crushing frame 6 for realizing the positioning of the crushing frame 6. The side walls of the upper shell 11, the middle shell 7 and the lower shell 5 of the shell are composed of an outer guard plate, an inner guard plate and a heat insulation layer arranged between the outer guard plate and the inner guard plate.
When in use, the high-temperature high-pressure hot air is externally connected through the air inlet 14, the feeding pipe is externally connected through the feed inlet 9, and the discharging pipeline is externally connected through the air outlet 12. The first motor and the second motor are started, and the hollow outer shaft 16 and the inner shaft 17 are driven to rotate through the belt transmission mechanism respectively, so that the crushing frame 6 and the wind impeller 15 are driven to rotate rapidly.
The materials enter the middle part of the shell through a screw conveyer in a feed inlet 9 and fall down, the materials are primarily knocked out for the first time by a crushing frame 6 rotating above during the falling down, and the materials which are smaller in particles are knocked out again in the area of the crushing frame 6 below after the primary knocked out for the first time, and the materials are blown up upwards by high-temperature high-pressure gas entering the crushing inner cavity from the bottom; the large-particle materials which are not knocked down fall into the area of the impeller 15, the impeller 15 breaks down the materials again and pushes the materials to the area of the crushing frame 6 above to break down again; until the particles are completely scattered into tiny particles to be blown out from the air outlet 12, and the blown-out materials are dried by hot air at the moment; the inside and unloading condition of equipment can be observed at any time through the observation window. If the materials are too much, the materials are accumulated at the fan impeller 15, the blockage in the cleaning hole can be opened, the first motor is controlled to rotate reversely, and the accumulated materials are rotated out by utilizing the reverse rotation of the fan impeller 15, so that the cleaning can be completed.
In order to reduce the influence of high temperature on equipment, when the equipment starts to work, cooling oil flows into the oil injection cavity 20 from the oil inlet hole, flows into the lower oil cavity 22 through the oil penetration hole 421, then flows out from the oil outlet hole 221, and simultaneously takes heat away; thereby cooling the hollow outer shaft 16 and the inner shaft 17.
Although embodiments of the present utility model have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the utility model would be readily apparent to those skilled in the art, and accordingly, the utility model is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (6)
1. The utility model provides a flash dryer, includes motor support and casing, characterized by: the shell is supported above the motor support through a supporting seat, a hollow outer shaft and an inner shaft which are mutually nested and rotatable are arranged in the supporting seat along the vertical direction, two motors are arranged on the motor support and are respectively connected with the lower ends of the hollow outer shaft and the inner shaft in a transmission way through a transmission mechanism, the upper ends of the hollow outer shaft and the inner shaft are respectively inserted into the shell, and crushing frames which are arranged up and down are respectively arranged in the shell at the upper ends of the inner shaft and the hollow outer shaft and used for crushing the input materials; an impeller is arranged at the inner bottom of the shell on the hollow outer shaft and used for scattering large-particle materials falling down;
the lower part of the shell is provided with a spacer bush which divides the lower part of the shell into a crushing inner cavity and an air inlet outer cavity, the crushing frame and the upper part of the air impeller are respectively inserted into the crushing inner cavity through clearance fit, and the bottoms of the crushing inner cavity and the air inlet outer cavity are mutually communicated;
a feeding port is arranged on one side of the middle part of the shell, and a screw conveyer is arranged in the feeding port and used for primarily cutting added materials;
an air inlet is arranged at one side of the lower part of the shell, and is communicated with the bottom of the crushing inner cavity through an air inlet outer cavity and used for introducing high-temperature and high-pressure hot air;
an air outlet is arranged at the top of the shell and is used for discharging crushed and dried materials.
2. A flash dryer according to claim 1, wherein: the shell is formed by sequentially connecting a conical upper shell, a cylindrical middle shell and a lower shell, the feeding hole is formed in the middle shell, and the air inlet is formed in the lower shell so as to be convenient to install.
3. A flash dryer according to claim 2, characterized in that: the lower shell is formed by connecting an upper cover and a base which are arranged up and down, and the spacer bush is fixed in the upper cover and leaves a certain gap with the base, so as to be used for communicating the crushing inner cavity and the air inlet outer cavity; the air inlet is radially fixed on one side of the upper cover, and the upper end of the supporting seat is connected with the flange at the lower end of the base through bolts.
4. A flash dryer according to claim 3, wherein: a positioning sleeve is fixed at the upper end of the central hole of the base, the hollow outer shaft penetrates through the positioning sleeve through clearance fit, and a lubricating bearing bush is arranged between the positioning sleeve and the hollow outer shaft; the lower end of the center sleeve of the wind impeller is sleeved on the positioning sleeve, and rotary seal is arranged between the center sleeve and the positioning sleeve.
5. A flash dryer according to claim 3 or 4, characterized in that: the base forms an annular oil injection cavity with the hollow outer shaft, an oil inlet is formed in one side of the oil injection cavity, the supporting seat forms an annular lower oil cavity with the hollow outer shaft, an oil outlet is formed in one side of the lower oil cavity, and the oil injection cavity and the lower oil cavity are communicated through the oil penetrating hole formed in the upper end of the supporting seat so as to facilitate cooling oil to be introduced into the power part of the flash dryer.
6. A flash dryer as in claim 5, wherein: the bottom surface of the base is provided with a cleaning hole, and a plug is arranged in the cleaning hole so as to clean residual materials conveniently.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321950357.7U CN220229766U (en) | 2023-07-24 | 2023-07-24 | Flash dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321950357.7U CN220229766U (en) | 2023-07-24 | 2023-07-24 | Flash dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220229766U true CN220229766U (en) | 2023-12-22 |
Family
ID=89186258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321950357.7U Active CN220229766U (en) | 2023-07-24 | 2023-07-24 | Flash dryer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220229766U (en) |
-
2023
- 2023-07-24 CN CN202321950357.7U patent/CN220229766U/en active Active
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| GR01 | Patent grant |