CN218511308U - Vacuum drier - Google Patents
Vacuum drier Download PDFInfo
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- CN218511308U CN218511308U CN202222296850.3U CN202222296850U CN218511308U CN 218511308 U CN218511308 U CN 218511308U CN 202222296850 U CN202222296850 U CN 202222296850U CN 218511308 U CN218511308 U CN 218511308U
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- 239000000463 material Substances 0.000 claims abstract description 51
- 238000010438 heat treatment Methods 0.000 claims abstract description 45
- 238000005485 electric heating Methods 0.000 claims abstract description 13
- 230000007306 turnover Effects 0.000 claims abstract description 4
- 238000009413 insulation Methods 0.000 claims description 30
- 238000007599 discharging Methods 0.000 claims description 20
- 238000007789 sealing Methods 0.000 claims description 7
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 230000010354 integration Effects 0.000 abstract description 3
- 230000001737 promoting effect Effects 0.000 abstract description 2
- 230000000630 rising effect Effects 0.000 abstract description 2
- 238000001035 drying Methods 0.000 description 6
- 238000001291 vacuum drying Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000009193 crawling Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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- Drying Of Solid Materials (AREA)
Abstract
The utility model relates to a vacuum dryer, including the feed bin, be provided with business turn over material subassembly, defeated material screw rod, vacuum subassembly, drive assembly and electrical heating subassembly on the feed bin, defeated material screw rod is located the feed bin, the electrical heating subassembly sets up the outer wall at the feed bin, and this vacuum dryer adopts vertical feed bin bottom feeding mode, and the central screw rod realizes feeding and lifting action integration, need not to join in marriage special material loading machine or auto sucking machine, improves business turn over material convenience, and feeding and promotion share a screw rod, simplified feeding mode; the cylinder section is directly heated by the electric heating plate, the heating range is between 80 and 400 ℃, the heating is flexible and adjustable, compared with a heat conduction oil heating mode, a heating system is simplified, the temperature rising speed is fast, the heating efficiency is high, the energy consumption is low, the risk of oil leakage and fire is avoided, the heat conduction oil does not need to be replaced regularly, and the maintenance cost is low; in addition, the conveying screw rod is used for promoting conveying circulation to mix materials in the storage bin, so that the heating uniformity of the materials can be improved.
Description
Technical Field
The utility model relates to a vacuum dryer belongs to the vacuum dryer field.
Background
The vacuum dryer is a device for drying under negative pressure, and the boiling point of a material solvent is reduced in a vacuum state, so that the vacuum dryer is suitable for drying unstable or heat-sensitive materials; the vacuum drier has good sealing performance, so that the vacuum drier is also suitable for drying materials which need to recover solvents and contain strong stimulation and toxic gases.
The existing vacuum dryer mainly adopts double-cone rotary drum vacuum drying or horizontal rake vacuum drying, the heating mode adopts a steam jacket or heat conducting oil for heating, and the following defects exist:
1. the feeding is high-level feeding, a special feeding machine or a special suction machine needs to be arranged, and the material filling rate is low (about 60 percent);
2. the heating medium is needed for heat transfer, the heating temperature is limited (steam is generally applied to 80-160 ℃, heat conduction oil is generally applied to 100-300 ℃), the requirement for higher temperature cannot be met, the jacket is required to be designed and manufactured according to the pressing force container standard, especially when a heat conduction oil heating mode is adopted, complicated electric heating, high-temperature oil pumps and pipelines are required to be designed, the system cost is high, when the system is actually applied, the system temperature rise speed is low, the energy consumption is high, the risk of oil leakage and fire is caused, the maintenance cost is high, heat conduction oil needs to be replaced regularly, and once the heat conduction oil is thermally degraded, the scaling and heat conduction efficiency can be obviously reduced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: in order to overcome the defects of the prior art, the vacuum dryer is provided, the integration of feeding and lifting functions is realized, the heating range is enlarged, the temperature rise speed is increased, and the maintenance cost is reduced.
The utility model provides a technical scheme that above-mentioned problem adopted does: the utility model provides a vacuum dryer, includes the feed bin, be provided with business turn over material subassembly, defeated material screw rod, vacuum component, drive assembly and electric heating element on the feed bin, defeated material screw rod is located the feed bin, electric heating element sets up the outer wall at the feed bin.
Preferably, the vacuum assembly comprises a vacuum pipe, a vacuum valve is arranged on the vacuum pipe, a vacuum removing pipe is connected to the vacuum pipe and located between the vacuum valve and a connecting end of the vacuum pipe and the storage bin, and a vacuum removing pipe is arranged on the vacuum removing pipe
Preferably, the driving assembly comprises a motor, and the motor is connected with the top end of the material conveying screw rod through a speed reducer.
Preferably, the storage bin comprises a head sealing part and a barrel part which are arranged up and down;
the head portion comprises a top cover, an observation opening and a material level meter are arranged on the top cover, and a sealing cover is arranged on the observation opening.
Preferably, the cylinder body part comprises a cylinder straight section, a cylinder conical section and a cylinder circular pipe section which are arranged up and down, the conveying screw rod penetrates through the cylinder circular pipe section, and the bottom of the cylinder circular pipe section is sealed.
As preferred, electrical heating element includes straight section insulation cover and conic section insulation cover, straight section insulation cover cup joints on the straight section of barrel, be equipped with a plurality of straight section hot plates in the straight section insulation cover, a plurality of straight section hot plates evenly set up the outer wall at the straight section of barrel, conic section insulation cover cup joints at the barrel conic section, be equipped with a plurality of first conic section hot plates and a plurality of second conic section hot plates in the conic section insulation cover, a plurality of first conic section hot plates and a plurality of second conic section hot plates evenly set up the outer wall at the barrel conic section.
Preferably, an annular cone end wiring cover is arranged between the straight section heat insulation sleeve and the cone section heat insulation sleeve, the cone end wiring cover is formed by encircling a plurality of arc-shaped cone section wiring boards, an annular straight section wiring cover is arranged at the top of the straight section heat insulation sleeve, and the straight section wiring cover is formed by encircling a plurality of arc-shaped straight section wiring boards.
Preferably, the feeding and discharging assembly comprises a feeding pipe and a discharging pipe, the discharging pipe is arranged on one side of the conical section of the barrel, a feeding hopper is arranged on one side of the circular section of the barrel, and the bottom of the feeding hopper is communicated with the circular pipe through the feeding pipe.
Preferably, a first pneumatic butt-clamping butterfly valve is arranged on the discharge pipe, and a second pneumatic butt-clamping butterfly valve is arranged on the feed pipe.
Preferably, a support is fixedly arranged outside the storage bin, and a crawling ladder is arranged on the support.
Compared with the prior art, the utility model has the advantages of:
1. the feeding mode at the bottom of the vertical bin is adopted, the central screw realizes the integration of feeding and lifting functions, a special feeding machine or a special suction machine is not required to be arranged, the feeding and discharging convenience is improved, and the feeding and lifting share one screw, so that the feeding mode is simplified;
2. the cylinder section is directly heated by the electric heating plate, the heating range is between 80 and 400 ℃, the heating is flexible and adjustable, compared with a heat conduction oil heating mode, a heating system is simplified, the temperature rising speed is fast, the heating efficiency is high, the energy consumption is low, the risk of oil leakage and fire is avoided, the heat conduction oil does not need to be replaced regularly, and the maintenance cost is low;
in addition, the conveying screw rod is used for promoting the conveying circulation to mix materials in the storage bin, so that the heating uniformity of the materials can be improved, the drying efficiency is improved, and the drying effect is improved.
Drawings
Fig. 1 is a perspective view of a vacuum dryer of the present invention;
FIG. 2 is a perspective view of a storage bin;
FIG. 3 is a front view of the bin;
FIG. 4 is a left side view of the bin;
FIG. 5 is a top view of the magazine;
FIG. 6 isbase:Sub>A cross-sectional view A-A of FIG. 3;
fig. 7 is a schematic structural view of the barrel portion.
Wherein: the device comprises a support 100, a ladder 101, a storage bin 200, a seal head part 201, a top cover 201.1, an observation opening 201.2, a level gauge 201.3, a sealing cover 201.4, a barrel part 202, a barrel straight section 202.1, a barrel conical section 202.2, a barrel circular pipe section 202.3, a material feeding and discharging component 203, a material feeding pipe 203.1, a material discharging pipe 203.2, a material feeding hopper 203.3, a first pneumatic butt clamp butterfly valve 203.4, a second pneumatic butt clamp butterfly valve 203.5, a material conveying screw 204, a vacuum component 205, a vacuum pumping pipe 205.1, a vacuum valve 205.2, a vacuum removing pipe 205.3, a vacuum removing valve 205.4, a driving component 206, a motor 206.1, a speed reducer 206.2, an electric heating component 207, a straight section heat insulation sleeve 207.1, a conical section heat insulation sleeve 207.2, a straight section heating plate 207.3, a first conical section 207.4, a heating plate 207.5, a conical end cover routing wire.6, a conical section plate 207.7, a straight section heat insulation sleeve 207.8, a straight section routing plate 207.9 and a straight section.
Detailed Description
As shown in fig. 1 to 7, the vacuum dryer in this embodiment includes a support 100 and a bin 200 fixedly disposed on the support 100, where the bin 200 includes a head portion 201 and a barrel portion 202 disposed up and down, a feeding and discharging assembly 203 is disposed at the bottom of the bin 200, a feeding screw 204 is vertically disposed in the bin 200, a vacuum assembly 205 and a driving assembly 206 are disposed on the head portion 201, the vacuum assembly 205 is configured to draw vacuum in the bin 200, the driving assembly 206 is configured to drive the feeding screw 204 to rotate, and the barrel portion 202 is provided with an electric heating assembly 207 configured to heat the barrel portion 202;
during the working period of the vacuum dryer, materials are placed at the feeding position of the feeding and discharging assembly 203, the material conveying screw 204 is rotated through the driving assembly 206, so that the materials at the feeding and discharging assembly 203 are conveyed into the bin 200, the material conveying screw 204 is used for lifting, conveying and circulating to mix the materials in the bin 200, meanwhile, the barrel 202 is heated through the electric heating assembly 207, in addition, the materials in the bin 200 are subjected to vacuum drying treatment through the vacuum assembly 205, extracted air can be treated through an external waste gas treatment device, after the materials are subjected to vacuum environment drying treatment for a period of time, the material conveying screw 204 can be stopped stirring, the vacuum is closed to balance the air pressure inside and outside the bin 200, and then the materials are discharged from the discharging position of the feeding and discharging assembly 203;
wherein, defeated material screw rod 204 adopts major diameter helical blade, and the stirring shaft dynamic balance is better, rotates more steadily, makes material rise in the middle of the feed bin 200, and the material descends all around, and the material intensive cycle misce bene, and the effective volume of feed bin can reach more than 90%.
The vacuum assembly 205 comprises an evacuation pipe 205.1 connected with the storage bin 200, the evacuation pipe 205.1 is provided with an evacuation valve 205.2, the evacuation pipe 205.1 is connected with a vacuum removing pipe 205.3, the vacuum removing pipe 205.3 is positioned between the connection end of the evacuation pipe 205.1 and the storage bin 200 and the evacuation valve 205.2, and the vacuum removing pipe 205.3 is provided with a vacuum removing valve 205.4;
the vacuumizing pipe 205.1 is connected with an external vacuum pump, during vacuumizing, the vacuumizing valve 205.2 is opened, the vacuum removing valve 205.4 is closed, air in the storage bin 200 is discharged from the vacuumizing pipe 205.1 through the external vacuum pump, vacuum is achieved, the vacuumizing valve 205.2 is closed during discharging, the vacuum removing valve 205.4 is opened, air can enter the storage bin 200 from the vacuum removing pipe 205.2 and the vacuumizing pipe 205.1 in sequence, and the internal air pressure and the external air pressure of the storage bin 200 are balanced.
The driving component 206 comprises a motor 206.1, and the motor 206.1 is connected with the top end of the material conveying screw 204 through a speed reducer 206.2;
the barrel body part 202 comprises a barrel body straight section 202.1, a barrel body conical section 202.2 and a barrel body circular tube section 202.3 which are arranged up and down, the bottom end of the material conveying screw rod 204 is inserted into the barrel body circular tube section 202.3, and the bottom of the barrel body circular tube section 202.3 is sealed;
the electric heating assembly 207 comprises a straight section heat insulation sleeve 207.1 and a conical section heat insulation sleeve 207.2, the straight section heat insulation sleeve 207.1 is sleeved on the straight section 202.1 of the cylinder body, a plurality of straight section heating plates 207.3 are arranged in the straight section heat insulation sleeve 207.1, the plurality of straight section heating plates 207.3 are uniformly arranged on the outer wall of the straight section 202.1 of the cylinder body, the conical section heat insulation sleeve 207.2 is sleeved on the conical section 202.2 of the cylinder body, a plurality of first conical section heating plates 207.4 and a plurality of second conical section heating plates 207.5 are arranged in the conical section heat insulation sleeve 207.2, and a plurality of first conical section heating plates 207.4 and a plurality of second conical section heating plates 207.5 are uniformly arranged on the outer wall of the conical section 202.2 of the cylinder body;
during the working period of the vacuum dryer, the straight section heating plate 207.3, the first conical section heating plate 207.4 and the second conical section heating plate 207.5 are electrified to heat the barrel part 202, the heating range can be adjusted between 80 ℃ and 400 ℃ according to actual requirements, in fact, each heating plate adopts an insert mounting mode, the overhaul and the replacement are convenient, in addition, each heating core of the electric heating plate is wound by a high-temperature alloy resistance wire, the service life is long, the upper limit of the heating temperature is high, each electric heating plate is controlled by a PID automatic temperature controller, and the temperature heating precision is improved, wherein, the PID controller is a feedback loop part which is common in industrial control application and consists of a proportion unit P, an integral unit I and a differential unit D, the PID can be matched with various sensors and transmitters for use, the measurement and the display of physical quantities such as temperature, pressure, liquid level, capacity, speed and the like are realized, and the PID controller is matched with various actuators to carry out the functions of PID adjustment and control, alarm control, data acquisition and the like on electric heating equipment and electromagnetism and an electric valve.
An annular cone end wiring cover 207.6 is arranged between the straight section heat insulation sleeve 207.1 and the cone section heat insulation sleeve 207.2, and an annular straight section wiring cover 207.8 is arranged at the top of the straight section heat insulation sleeve 207.1;
the cone end routing cover 207.6 is formed by encircling a plurality of arc-shaped cone section routing plates 207.7;
the straight-section wiring cover 207.8 is formed by encircling a plurality of arc-shaped straight-section wiring plates 207.9;
the feeding and discharging component 203 comprises a feeding pipe 203.1 and a discharging pipe 203.2, the discharging pipe 203.2 is arranged on one side of a barrel conical section 202.2, a feeding hopper 203.3 is arranged on one side of a barrel circular pipe section 202.3, and the bottom of the feeding hopper 203.3 is communicated with a circular pipe through the feeding pipe 203.1;
the material is placed in feeder hopper 203.3, and during the feed in feed bin 200, the material in feeder hopper 203.3 is carried to barrel circular tube section 202.3 back from inlet pipe 203.1, carries again to barrel straight section 202.1 and barrel conical section 202.2, when arranging the material, then discharges from discharging pipe 203.2.
A first pneumatic butt-clamping butterfly valve 203.4 is arranged on the discharge pipe 203.2, and a second pneumatic butt-clamping butterfly valve 203.5 is arranged on the feed pipe 203.1;
during material loading, the second pneumatic butt clamp butterfly valve 203.5 is opened, and first pneumatic butt clamp butterfly valve 203.4 is closed, and during the material is dry, the second pneumatic butt clamp butterfly valve 203.5 and first pneumatic butt clamp butterfly valve 203.4 are all closed, and during the material unloading, the second pneumatic butt clamp butterfly valve 203.5 is closed, and first pneumatic butt clamp butterfly valve 203.4 is opened.
The head sealing part 201 comprises a top cover 201.1, an observation port 201.2 and a material level meter 201.3 are arranged on the top cover 201.1, and a sealing cover 201.4 is arranged on the observation port 201.2;
a ladder stand 101 is arranged on the support 100;
in addition to the above embodiments, the present invention also includes other embodiments, and all technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a vacuum dryer, includes feed bin (200), its characterized in that, be provided with business turn over material subassembly (203), defeated material screw rod (204), vacuum subassembly (205), drive assembly (206) and electrical heating subassembly (207) on feed bin (200), defeated material screw rod (204) are located feed bin (200), electrical heating subassembly (207) set up the outer wall at feed bin (200).
2. A vacuum dryer according to claim 1, wherein: the vacuum assembly (205) comprises a vacuumizing pipe (205.1), a vacuumizing valve (205.2) is arranged on the vacuumizing pipe (205.1), a vacuumizing valve (205.3) is connected to the vacuumizing pipe (205.1) in a bypassing manner, the vacuumizing valve (205.3) is located between the connecting end of the vacuumizing pipe (205.1) and the storage bin (200) and the vacuumizing valve (205.2), and a vacuumizing valve (205.4) is arranged on the vacuumizing valve (205.3).
3. A vacuum dryer according to claim 1, wherein: the driving assembly (206) comprises a motor (206.1), and the motor (206.1) is connected with the top end of the material conveying screw rod (204) through a speed reducer (206.2).
4. A vacuum dryer according to claim 1, wherein: the storage bin (200) comprises a sealing head part (201) and a barrel part (202) which are arranged up and down;
the seal head part (201) comprises a top cover (201.1), an observation port (201.2) and a material level meter (201.3) are arranged on the top cover (201.1), and a seal cover (201.4) is arranged on the observation port (201.2).
5. A vacuum dryer according to claim 4, wherein: the barrel body part (202) comprises a barrel body straight section (202.1), a barrel body conical section (202.2) and a barrel body circular pipe section (202.3) which are arranged up and down, the bottom end of the material conveying screw rod (204) is inserted into the barrel body circular pipe section (202.3), and the bottom of the barrel body circular pipe section (202.3) is sealed.
6. A vacuum dryer according to claim 5, wherein: the electric heating assembly (207) comprises a straight section heat insulation sleeve (207.1) and a conical section heat insulation sleeve (207.2), the straight section heat insulation sleeve (207.1) is sleeved on a straight section (202.1) of the barrel, a plurality of straight section heating plates (207.3) are arranged in the straight section heat insulation sleeve (207.1), the plurality of straight section heating plates (207.3) are uniformly arranged on the outer wall of the straight section (202.1) of the barrel, the conical section heat insulation sleeve (207.2) is sleeved on a conical section (202.2) of the barrel, a plurality of first conical section heating plates (207.4) and a plurality of second conical section heating plates (207.5) are arranged in the conical section heat insulation sleeve (207.2), and the plurality of first conical section heating plates (207.4) and the plurality of second conical section heating plates (207.5) are uniformly arranged on the outer wall of the conical section (202.2) of the barrel.
7. A vacuum dryer according to claim 6, wherein: be provided with annular awl end between straight section insulation cover (207.1) and the conic section insulation cover (207.2) and walk line cover (207.6), awl end is walked line cover (207.6) and is enclosed by a plurality of curved conic sections and form, the top of straight section insulation cover (207.1) is provided with annular straight section and walks line cover (207.8), straight section is walked line cover (207.8) and is enclosed by a plurality of curved straight section and walks line board (207.9) and form.
8. A vacuum dryer according to claim 5, wherein: the feeding and discharging component (203) comprises a feeding pipe (203.1) and a discharging pipe (203.2), the discharging pipe (203.2) is arranged on one side of the barrel conical section (202.2), one side of the barrel circular section (202.3) is provided with a feeding hopper (203.3), and the bottom of the feeding hopper (203.3) is communicated with the circular pipe through the feeding pipe (203.1).
9. A vacuum dryer according to claim 8, wherein: be provided with first pneumatic butt clamp butterfly valve (203.4) on discharging pipe (203.2), be provided with second pneumatic butt clamp butterfly valve (203.5) on feeding pipe (203.1).
10. A vacuum dryer according to claim 1, wherein: the feed bin (200) is externally fixedly provided with a support (100), and the support (100) is provided with a ladder stand (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222296850.3U CN218511308U (en) | 2022-08-31 | 2022-08-31 | Vacuum drier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222296850.3U CN218511308U (en) | 2022-08-31 | 2022-08-31 | Vacuum drier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218511308U true CN218511308U (en) | 2023-02-21 |
Family
ID=85210848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222296850.3U Active CN218511308U (en) | 2022-08-31 | 2022-08-31 | Vacuum drier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218511308U (en) |
-
2022
- 2022-08-31 CN CN202222296850.3U patent/CN218511308U/en active Active
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