CN209877525U - Screw-in type hopper dryer - Google Patents
Screw-in type hopper dryer Download PDFInfo
- Publication number
- CN209877525U CN209877525U CN201920471660.6U CN201920471660U CN209877525U CN 209877525 U CN209877525 U CN 209877525U CN 201920471660 U CN201920471660 U CN 201920471660U CN 209877525 U CN209877525 U CN 209877525U
- Authority
- CN
- China
- Prior art keywords
- screen protector
- screw
- drying barrel
- fins
- pipe body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
- 238000001035 drying Methods 0.000 claims abstract description 61
- 230000001012 protector Effects 0.000 claims abstract description 52
- 239000000428 dust Substances 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 15
- 238000001914 filtration Methods 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000005192 partition Methods 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 15
- 238000009423 ventilation Methods 0.000 description 14
- 238000007667 floating Methods 0.000 description 5
- 239000000779 smoke Substances 0.000 description 5
- 239000002994 raw material Substances 0.000 description 4
- 238000005485 electric heating Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Abstract
The utility model discloses a screw-in hopper dryer, which belongs to the field of material drying equipment and comprises an upper cylindrical drying barrel and a screen protector with a funnel-shaped structure, wherein the upper cylindrical drying barrel and the lower cylindrical drying barrel are integrated, the big end of the screen protector is connected with the bottom end of the drying barrel, the top end of the drying barrel is sealed, the inlet of a fan is communicated with the top end of the drying barrel, and the outlet of the fan is communicated with the screen protector through a hot blast pipe and an air inlet pipe in sequence; the side wall of the hole screen device is provided with a plurality of through holes, the large port of the screen protector is arranged downwards, the hot air pipe comprises a pipe body, and a plurality of fins are arranged on the outer wall of the pipe body along the axial direction of the pipe body; the fins are distributed in groups, each group of fins comprises a plurality of circles of fins, and each group of fins is covered in the dust filtering cover; the honeycomb-shaped heat-conducting core body is arranged inside the pipe body, and honeycomb holes of the core body are arranged along the axial direction of the pipe body. The dryer eliminates hot air resistance, makes hot air enter the dryer more smoothly, has good heat transfer effect, and greatly improves the drying efficiency of materials.
Description
Technical Field
The invention belongs to the technical field of drying, and particularly relates to hopper drying equipment.
Background
Present hopper desiccator's is hot-blast, blows in the drying barrel through the fan with hot-blast coniform screen protector bottom from the hopper bottom to get rid of the moisture content of bucket interior material, when hot-blast from bottom centre when blowing up, hot-blast can form the resistance in the hopper, and wind-force is too concentrated, makes hot-blast atress inhomogeneous, and the resistance can make hot-blast energy consumption, and drying effect can receive great influence. On the other hand, the heating devices used in the existing drying equipment are usually elements such as electric heating tubes, which have either smooth surfaces but poor thermal efficiency (too small contact area), or are provided with a plurality of radiating fins (fins), and when a large wind resistance is formed between the radiating fins, the floating dust is easy to accumulate and the dust is not easy to remove, and the wind speed is sacrificed but a high heat exchange rate cannot be obtained, so that the heat exchange performance is affected, and therefore, the thermal efficiency and the use reliability of the whole drying equipment cannot be achieved at the same time. In view of the above, further improved optimization of current drying equipment is needed.
Disclosure of Invention
The invention aims to solve the technical problems and provides a screw-in hopper dryer which eliminates the flowing resistance when hot air enters, so that the hot air enters the dryer more smoothly, the heat transfer effect is good, and the drying efficiency of materials is greatly improved.
The technical scheme of the invention is as follows:
a screw-in hopper dryer comprises an upper cylindrical drying barrel and a lower cylindrical drying barrel which are integrated, and a screen protector with a funnel-shaped structure, wherein the large end of the screen protector is integrally connected with the bottom end of the drying barrel, the top end of the drying barrel is closed, the inlet of a fan is communicated with the top end of the drying barrel, and the outlet of the fan is communicated with the screen protector sequentially through a hot air pipe and an air inlet pipe;
the air inlet pipe extends into the screen protector along the tangential direction of the side wall close to the small end of the screen protector and is communicated with the screen protector, and the inner bottom surface at the bottom end of the screen protector is an inner concave curved surface in a hemispherical shell shape;
the center of the large port of the screen protector is also provided with a horn-shaped screen protector in a hanging manner, the side wall of the screen protector is provided with a plurality of through holes, and the large port of the screen protector is arranged downwards, so that hot air which upwells from the bottom end of the screen protector can penetrate through the through holes and then is diffused all around to flow into the drying barrel;
the hot air pipe comprises a pipe body, and a plurality of fins are arranged on the outer wall of the pipe body along the axial direction of the pipe body; the fins are distributed in groups, each group of fins comprises a plurality of rings of fins, each group of fins is covered in a dust filter, the dust filter is a ring-shaped ferrule which is sleeved on the pipe body and is coaxial with the pipe body, the cross section of the ferrule is C-shaped, the opening end of the ferrule is adhered to the surface of the pipe body through a heat-conducting adhesive, and the ferrule is provided with a plurality of dust filtering holes communicated with the inner cavity of the ferrule; the honeycomb-shaped heat conducting core body is arranged in the pipe body, and honeycomb holes of the core body are arranged along the axial direction of the pipe body, so that fluid can smoothly flow through the honeycomb holes to enlarge the contact area and realize rapid and sufficient heating.
Furthermore, the drying barrel and the inside of the screen protector are separated by a horizontally arranged ventilating partition plate, and the small end of the screen protector is fixed in the center of the partition plate.
Furthermore, a ventilation cylinder is vertically installed on the axis in the drying barrel, a plurality of ventilation holes are uniformly formed in the wall of the ventilation cylinder, the top end of the ventilation cylinder is closed, and the bottom end of the ventilation cylinder covers a small port of the hole screen device embedded in the ventilation partition plate.
The gas-permeable screen protector further comprises a screw coaxially screwed into the gas-permeable cylinder, a piston is fixed at the bottom end of the screw, the piston is plugged in the small port of the screen protector in a natural state, and the small port of the screen protector can be opened by screwing the screw upwards when needed.
Furthermore, the screw rod is divided into two sections, one section extends into the other section, and the two sections are connected through a spring, so that the screw rod has certain flexibility under the action of axial force.
Furthermore, a plurality of layers of supporting plates for holding materials are sequentially arranged in the drying barrel from bottom to top, the distance between the supporting plates from bottom to top is gradually increased, and the air holes of the supporting plates are also gradually increased.
Further, the bottom port of the screen protector is closed.
Further, the core is integrally formed with the tube; the fins are provided with a plurality of through holes.
Furthermore, a screw which is screwed into the tube body is arranged on the ferrule.
Further, the spacing distance between two adjacent ferrules accounts for 3.5% of the total length of the pipe body.
The invention has the beneficial effects that: the invention generates rotary hot air through the screen protector and combines the hole screen device to ensure that the hot air can be quickly and uniformly dispersed into the drying barrel with less resistance to obtain good drying effect, and the special hot air pipe perfectly matches the structural design of the drying barrel to ensure that the hot air is heated more efficiently, i.e. efficiently and reliably, the hot air resistance is eliminated, the hot air enters the drying machine more smoothly, the heat transfer effect is good, and the drying efficiency of materials is greatly improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a telescopic screw;
fig. 3 is a sectional view of the hot blast pipe of the present invention;
fig. 4 is a sectional view taken along line a-a in fig. 3.
Fig. 5 is a partial schematic view of a fin provided with perforations.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
as shown in fig. 1, a screw-in hopper dryer includes a cylindrical drying tub 1101 and a screen guard 1102 of a funnel-like structure, i.e., a body portion of a hopper, integrated in a top-bottom manner. The big end of the screen protector 1102 is integrally connected with the bottom end of the drying barrel 1101, the top end of the drying barrel 1101 is closed, the inlet of the fan 9 is communicated with the top end of the drying barrel 1101, and the outlet of the fan is communicated with the screen protector 1102 sequentially through the hot air pipe 8 and the air inlet pipe 7. Particularly, the air inlet duct 7 of the present embodiment extends into the shield 1102 along the tangential direction of the side wall near the small end of the shield 1102 to communicate with the shield 1102, and the inner bottom surface at the bottom end of the shield 1102 is an inner concave curved surface in the shape of a hemispherical shell; the air inlet of the hopper is changed from the front side of the hopper to the tangent side surface of the hopper, so that hot air forms a vortex state through the wall of the hopper under the action of the fan 9, the resistance of the hot air in the hopper is reduced, the time for drying raw materials is shortened, and the drying is more uniform. In this embodiment, to further enhance the swirl effect, the inlet of the air inlet pipe 7 should be arranged at the upper edge of the spherical curved bottom of the shield 1102.
The center of the large port of the screen protector 1102 is also provided with a horn-shaped screen protector 12 in a hanging manner, the side wall of the screen protector 12 is provided with a plurality of through holes, and the large port of the screen protector 1102 is arranged downwards, so that hot air upwelling from the bottom end of the screen protector 1102 can penetrate through the through holes and then is diffused all around to be upwelled into the drying barrel 1101.
As shown in fig. 3-4, the hot air duct 8 includes a duct body 1, and a plurality of fins 2 are disposed on the outer wall of the duct body 1 along the axial direction thereof; the fin 2 is the component distribution, and every group fin all includes a plurality of rings of fin 2 and every group fin 2 all by the cover in dust excluding hood 3, dust excluding hood 3 is the round cover on body 1 with the circular lasso of body 1 coaxial setting, the transversal personally submitting C type of lasso and its open end paste the surface at body 1 through heat conduction adhesive 4, be equipped with a plurality ofly on the lasso and its self inner chamber communicating dust filtration hole 301, should strain the dust hole greatly little and decide according to the smoke and dust size of actual heating production to can directly block up the smoke and dust filtering of clamp between fin 2 and be suitable, because great smoke and dust granule can not get rid of because the vortex effect between the fin. The honeycomb-shaped heat-conducting core body 5 is arranged inside the tube body 1, and honeycomb holes of the core body 5 are arranged along the axial direction of the tube body 1, so that fluid can smoothly flow through the honeycomb holes to be rapidly and sufficiently heated, and the heat exchange effect is further ensured. When the hot blast pipe 8 is installed and used, the hot blast pipe can be integrally and coaxially suspended in a pipeline which is connected with the air inlet pipe 7, so that air flow can be rapidly heated in the pipe body and outside of the hot blast pipe 8, and the heat efficiency is better.
The working principle is as follows: when the drying device is used, materials are placed into the drying barrel 1101, then the fan 9 is started to fill air into the hot air pipe 8, hot air in the hot air pipe 8 flows into the screen protector 1102 through the air inlet pipe 7 to form rising vortex-shaped hot air, the rising hot air is collected under the action of the screen hole device 12 and then is filled into the drying barrel 1101 above in a dispersing mode, the materials in the drying barrel 1101 are dried, and finally the materials are sent back to the hot air pipe 8 through the air return pipe 10 at the top for cyclic heating, and the steps are repeated so as to fully dry the materials. In the material drying treatment, the dryer blows high-temperature air into the drying barrel 1101 through the drying fan 9, and after the raw materials are baked, the original moisture in the barrel is taken away, so that the purpose of removing the moisture contained in the raw materials is achieved. The wind that fan 9 blew out becomes high temperature drying hot-blast after the heating of wind-heat pipe, through the screw-in hopper, makes hot-blast process hopper wall form the swirl state to lead to into hole screen ware 12 and protect screen ware 1102, make hot-blast evenly pass through in the storage bucket, and take away the moisture content in the bucket interior raw materials, then the wind that has absorbed moisture content is discharged from return air pipe 10, gets back to fan 9 again, and such a circulation promotes drying efficiency greatly, improves energy utilization. In addition, because the material is dried, floating garbage such as floating dust and the like is difficult to return to the hot air pipe 8 during drying, the hot air pipe 8 is easy to be damaged, the existing common heating element such as an electric heating pipe has a smooth surface but poor heat efficiency, or a plurality of radiating fins are arranged, the floating dust is easy to accumulate among the radiating fins, and the heat exchange performance is influenced, the air heating pipe specially designed for the drying structure of the dryer slows down the problem to a great extent, the fins are arranged in groups, each group of fins are covered by the sleeve ring, and a plurality of dust filtering holes are arranged on the sleeve ring to prevent floating large-particle smoke dust from entering and being clamped among the fins, so that the heat transfer performance of the fins is influenced, meanwhile, in order to ensure that the heat exchange performance of the heating device is not reduced, the heat conducting adhesive is specially adopted to bond and install the sleeve ring, so that the sleeve ring can not cause the whole heat exchange effect because of contact heat resistance generated by a detachable structure on the basis of detachable connection And the honeycomb heat conduction core body is arranged in the tube body, so that fluid flows through the core body, the contact area is increased, and the heat exchange effect is greatly improved.
In order to further optimize the structure of the dryer and improve the effect of uniform flow of hot air, further, the drying barrel 1101 and the inside of the screen protector 1102 are separated by a horizontally arranged air-permeable partition, and the small end of the screen hole 12 is fixed at the center of the partition.
Further, a ventilation cylinder 15 is vertically installed on an axis in the drying barrel 1101, a plurality of ventilation holes are uniformly formed in the wall of the ventilation cylinder 15, the top end of the ventilation cylinder 15 is closed, and the bottom end of the ventilation cylinder is covered on a small port of the hole screen 12 embedded in the ventilation partition plate, so that part of air quickly flows upwards through the ventilation cylinder 15 to serve as a quick passage for hot air flow.
Further, a screw 14 coaxially screwed into the ventilation cylinder 15 is included, a piston 13 is fixed at the bottom end of the screw 14, the piston 13 is naturally blocked in the small port of the hole screen 12, and the small port of the screen protector 1102 can be opened by screwing the screw 14 upwards when necessary, so that the quick passage can be selectively opened when necessary.
Furthermore, the screw 14 is divided into two sections, one section extends into the other section, and the two sections are connected through a spring, so that the screw 14 has certain flexibility under the action of axial force, and a quick channel can be opened in time when hot air injected below is at rated pressure, thereby playing a role in protecting and balancing the use of hot air.
Further, a plurality of layers of supporting plates 16 for holding the materials are sequentially arranged in the drying barrel 1101 from bottom to top, the distance between the supporting plates 16 from bottom to top is gradually increased, and the air holes of the supporting plates 16 are also gradually increased, so that the materials in each layer are dried uniformly as much as possible.
Further, the bottom port of the shield 1102 is closed, so that the upward flow velocity of the inrush hot air can be increased. Of course, the bottom port can be opened when necessary so as to inject the upward hot air at the same time, thereby improving the heating speed, and the bottom port can be provided with a flange cover.
Further, the core body 5 and the pipe body 1 are integrally formed, so that thermal contact resistance is reduced, and an ideal heat exchange effect is ensured.
Furthermore, the ferrule (dust filter 3) is provided with a screw 6 screwed into the pipe body 1 to reinforce the ferrule, so that the ferrule, the heat-conducting adhesive 4 and the pipe body 1 are contacted more tightly, and the heat-conducting effect is better.
Further, the spacing distance D between two adjacent ferrules accounts for 3.5% of the total length of the tube body 1, the heat exchange effect is good, and large smoke dust is not easy to accumulate on the outer wall of the tube body 1 between the two adjacent ferrules.
Further, as shown in fig. 5, the fins 2 are provided with a plurality of through holes to facilitate the flow of hot air in the dust filter 3.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A screw-in hopper dryer comprises an upper cylindrical drying barrel and a lower cylindrical drying barrel which are integrated, and a screen protector with a funnel-shaped structure, wherein the large end of the screen protector is integrally connected with the bottom end of the drying barrel, the top end of the drying barrel is closed, the inlet of a fan is communicated with the top end of the drying barrel, and the outlet of the fan is communicated with the screen protector sequentially through a hot air pipe and an air inlet pipe; the method is characterized in that:
the air inlet pipe extends into the screen protector along the tangential direction of the side wall close to the small end of the screen protector and is communicated with the screen protector, and the inner bottom surface at the bottom end of the screen protector is an inner concave curved surface in a hemispherical shell shape;
the center of the large port of the screen protector is also provided with a horn-shaped screen protector in a hanging manner, the side wall of the screen protector is provided with a plurality of through holes, and the large port of the screen protector is arranged downwards, so that hot air which upwells from the bottom end of the screen protector can penetrate through the through holes and then is diffused all around to flow into the drying barrel;
the hot air pipe comprises a pipe body, and a plurality of fins are arranged on the outer wall of the pipe body along the axial direction of the pipe body; the fins are distributed in groups, each group of fins comprises a plurality of rings of fins, each group of fins is covered in a dust filter, the dust filter is a ring-shaped ferrule which is sleeved on the pipe body and is coaxial with the pipe body, the cross section of the ferrule is C-shaped, the opening end of the ferrule is adhered to the surface of the pipe body through a heat-conducting adhesive, and the ferrule is provided with a plurality of dust filtering holes communicated with the inner cavity of the ferrule; the honeycomb-shaped heat conducting core body is arranged in the pipe body, and honeycomb holes of the core body are arranged along the axial direction of the pipe body, so that fluid can smoothly flow through the honeycomb holes to enlarge the contact area and realize rapid and sufficient heating.
2. A screw-in hopper dryer as claimed in claim 1, wherein: the drying barrel and the inside of the screen protector are separated by a horizontally arranged ventilating partition plate, and the small end of the screen protector is fixed in the center of the partition plate.
3. A screw-in hopper dryer as claimed in claim 2, wherein: the drying device is characterized in that a ventilating cylinder is vertically arranged on the axis in the drying barrel, a plurality of ventilating holes are uniformly formed in the wall of the ventilating cylinder, the top end of the ventilating cylinder is closed, and the bottom end of the ventilating cylinder covers a small port of the hole screen device embedded in the ventilating partition plate.
4. A screw-in hopper dryer as claimed in claim 3, wherein: the gas permeable screen protector further comprises a screw coaxially screwed into the gas permeable cylinder, a piston is fixed at the bottom end of the screw, the piston is plugged in the small port of the screen protector in a natural state, and the small port of the screen protector can be opened by screwing the screw upwards when needed.
5. A screw-in hopper dryer according to claim 4, wherein: the screw rod is divided into two sections, one section extends into the other section, and the two sections are connected through a spring, so that the screw rod has elasticity under the action of axial force.
6. A screw-in hopper dryer as claimed in claim 1, wherein: the drying barrel is internally provided with a plurality of layers of supporting plates for placing materials in sequence from bottom to top, the distance between the supporting plates from bottom to top is gradually increased, and the air holes of the supporting plates are also gradually increased.
7. A screw-in hopper dryer as claimed in claim 1, wherein: and the bottom port of the screen protector is closed.
8. The screw-in hopper dryer of claim 1, wherein: the core body and the pipe body are integrally formed; the fins are provided with a plurality of through holes.
9. The screw-in hopper dryer of claim 1, wherein: and the ferrule is provided with a screw screwed into the tube body.
10. The screw-in hopper dryer of claim 1, wherein: the spacing distance between two adjacent ferrules accounts for 3.5% of the total length of the pipe body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920471660.6U CN209877525U (en) | 2019-04-09 | 2019-04-09 | Screw-in type hopper dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920471660.6U CN209877525U (en) | 2019-04-09 | 2019-04-09 | Screw-in type hopper dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209877525U true CN209877525U (en) | 2019-12-31 |
Family
ID=68958967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920471660.6U Withdrawn - After Issue CN209877525U (en) | 2019-04-09 | 2019-04-09 | Screw-in type hopper dryer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209877525U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109855403A (en) * | 2019-04-09 | 2019-06-07 | 重庆信鼎精密机械有限公司 | A kind of screw-in Hopper Dryer |
-
2019
- 2019-04-09 CN CN201920471660.6U patent/CN209877525U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109855403A (en) * | 2019-04-09 | 2019-06-07 | 重庆信鼎精密机械有限公司 | A kind of screw-in Hopper Dryer |
| CN109855403B (en) * | 2019-04-09 | 2023-11-21 | 重庆信鼎精密机械有限公司 | Screw-in type hopper dryer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20191231 Effective date of abandoning: 20231121 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20191231 Effective date of abandoning: 20231121 |