CN109442913B - Vacuum drier - Google Patents
Vacuum drier Download PDFInfo
- Publication number
- CN109442913B CN109442913B CN201811537484.8A CN201811537484A CN109442913B CN 109442913 B CN109442913 B CN 109442913B CN 201811537484 A CN201811537484 A CN 201811537484A CN 109442913 B CN109442913 B CN 109442913B
- Authority
- CN
- China
- Prior art keywords
- discharging
- butterfly valve
- buffer hopper
- pneumatic butterfly
- feeding
- 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.)
- Active
Links
- 238000007599 discharging Methods 0.000 claims abstract description 81
- 238000009413 insulation Methods 0.000 claims abstract description 14
- 238000005192 partition Methods 0.000 claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 106
- 239000000498 cooling water Substances 0.000 claims description 32
- 238000001035 drying Methods 0.000 claims description 22
- 238000010438 heat treatment Methods 0.000 claims description 21
- 238000005485 electric heating Methods 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 230000001174 ascending effect Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 6
- 238000013016 damping Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000004140 cleaning Methods 0.000 abstract description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 239000004594 Masterbatch (MB) Substances 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007602 hot air drying Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D1/00—Devices using naturally cold air or cold water
- F25D1/02—Devices using naturally cold air or cold water using naturally cold water, e.g. household tap water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/04—Heating arrangements using electric heating
- F26B23/06—Heating arrangements using electric heating resistance heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/28—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun
- F26B3/30—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun from infrared-emitting elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Microbiology (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Sustainable Development (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The utility model relates to a vacuum dryer which comprises a shell, a cover body, a lifting mechanism, a feeding mechanism, a discharging mechanism and a plurality of infrared heaters, wherein the feeding mechanism and the discharging mechanism are respectively positioned at the left side and the right side of the shell, an upper cavity and a lower cavity are arranged in the shell, the plurality of infrared heaters are uniformly arranged on the inner wall of the upper cavity, the lifting mechanism comprises a base, two vibrating motors, a receiving disc, a central column and a plurality of spiral discs, the base is arranged in the lower cavity, the two vibrating motors are arranged at the front side and the rear side of the base, the bottom end of the central column passes through a heat insulation partition plate and is fixedly connected with the base, the receiving disc is sleeved at the lower section of the central column, the plurality of spiral discs are continuously welded on the central column, the upper section of the central column is provided with a discharging conveying groove extending rightward, and the bottom of the discharging conveying groove is provided with a discharging hole. The utility model has the advantages of low energy consumption, low noise, high reliability, easy cleaning, high production efficiency, long service life and the like.
Description
Technical Field
The utility model relates to a vacuum dryer, and belongs to the field of mechanical equipment.
Background
At present, the existing drier mostly adopts hot air drying, materials enter a bin through a material sucking mode of a material sucking machine, the whole bin dries the materials through blowing hot air, and the drying is completed after a certain period of time. This drying mode has the following defects: the hot material circulates through the material absorbing mode to enable the inner wall of the conveying pipeline to be easy to be drawn, so that the quality of the material is affected, the cleaning difficulty is increased, and when the water content of the material is high, a long circulation time is needed, so that the energy consumption is high, and the noise of the whole system is also large. The utility model patent application with the patent number of 201420163023.X discloses a continuous vibration lifting vacuum dryer, which adopts a single jacket heat conducting medium to heat materials, and the pressure maintaining heat preserving cover and the vibrator are in an integrated vibration mode, and has the following defects: firstly, a hose is needed for heating media, the hose is connected with vibration equipment, the hose needs to be maintained and replaced regularly, the sealing structure of the pressure-maintaining heat-preserving cover is complex, the pressure-maintaining heat-preserving cover is in a vibration state, and the pressure-maintaining performance is poor; secondly, the equipment material in and out is in butt joint with Wen Naizhen dynamic pressure-resistant flexible connection, so that the reliability is relatively poor, and the equipment material in and out is required to be replaced periodically. Therefore, it is important to find a vacuum dryer with low energy consumption, low noise, easy cleaning, high production efficiency, high reliability and long service life.
Disclosure of Invention
The utility model aims to overcome the defects and provide the vacuum dryer which is low in energy consumption, low in noise, high in reliability, easy to clean, capable of improving the quality of materials, improving the production efficiency and prolonging the service life.
The purpose of the utility model is realized in the following way: the vacuum dryer comprises a shell, a cover body, a lifting mechanism, a feeding mechanism, a discharging mechanism and a plurality of infrared heaters, wherein the top of the shell is fixedly connected with the bottom of the cover body, the lifting mechanism is arranged in the shell, the feeding mechanism and the discharging mechanism are respectively positioned at the left side and the right side of the shell, a heat insulation partition plate is arranged at the lower section of an inner cavity of the shell, the inner cavity of the shell is partitioned into an upper cavity and a lower cavity by the heat insulation partition plate, and the infrared heaters are uniformly arranged on the inner wall of the upper cavity;
the lifting mechanism comprises a base, a plurality of support columns, two vibrating motors, a material receiving disc, a central column and a plurality of spiral discs, wherein the base, the support columns and the vibrating motors are arranged in a lower cavity, the support columns are surrounded on the periphery of the base, the two vibrating motors are arranged on the base and are respectively positioned on the front side and the rear side of the base, the central column, the material receiving disc and the spiral discs are arranged in an upper cavity, the bottom end of the central column passes through a heat insulation partition plate and is fixedly connected with the base, the material receiving disc is sleeved on the lower section of the central column, the spiral discs are positioned above the material receiving disc, the spiral discs are continuously welded on the central column, an electric heating jacket is arranged at the bottom of each spiral disc, a discharge conveying groove extending rightward is arranged at the upper section of the central column, a discharge outlet is arranged at the bottom of each discharge conveying groove, a joint of the first spiral disc arranged from top to bottom is connected with the discharge conveying groove, and a joint of the last spiral disc is connected with the material receiving disc.
Still further, feed mechanism includes the feeding buffer hopper, the feeding buffer hopper passes through support fixed mounting on the outer wall of casing, the upper segment and the hypomere of the lateral wall of feeding buffer hopper are provided with first material level detection meter and second material level detection meter respectively, the top of feeding buffer hopper is provided with the feed inlet that upwards extends, the hypomere of feed inlet is provided with first pneumatic butterfly valve, be connected through first pipeline between the bottom of feeding buffer hopper and the hypomere of last cavity, and the inner of first pipeline stretches into the top of going up the cavity and being located the receiving tray, be provided with the pneumatic butterfly valve of second on the link of first pipeline and feeding buffer hopper.
Still further, the discharging mechanism includes the discharging buffer hopper, the discharging buffer hopper passes through support fixed mounting on the outer wall of casing, the lateral wall upper segment and the hypomere of discharging buffer hopper are provided with third material level detection meter and fourth material level detection meter respectively, be connected through the second pipeline between the upper segment of discharging buffer hopper's top and last cavity, and the inner of second pipeline stretches into the cavity and is located the drain hole under, the second pipeline is located and is provided with the third pneumatic butterfly valve on the outer section of cavity, be connected through the third pipeline between the bottom of discharging buffer hopper and the hypomere of last cavity, and the inner of third pipeline stretches into the cavity and be located the top of receiving disc, be provided with the fourth pneumatic butterfly valve on the link of third pipeline and the discharging buffer hopper, the hypomere of discharging buffer hopper is connected with the fourth pipeline, be provided with the fifth pneumatic butterfly valve on the fourth pipeline, the outer end of fourth pipeline is regarded as the drain hole.
Furthermore, a cooling water jacket is arranged on the side wall of the lower cavity in a surrounding manner, a cooling water inlet pipe and a cooling water outlet pipe are arranged on the cooling water jacket, the cooling water inlet pipe is positioned at the lower part of the lower cavity, and the cooling water outlet pipe is positioned at the upper part of the lower cavity.
Further, a damping spring penetrating through the heat insulation partition plate is arranged between the bottom of the material receiving tray and the top of the support column.
Further, the second conveying pipeline is provided with a first temperature sensor on the outer section of the upper chamber, and second temperature sensors are arranged on the side walls of the upper chamber and the lower chamber.
The production method of the vacuum dryer comprises the following steps:
step one, preheating
Respectively starting an electric heating jacket and an infrared heater, wherein the heating power of the electric heating jacket is 22-28kw, and the heating power of the infrared heater is 22-28kw, so that the heating temperature is 115-125 ℃;
step two, feeding
Closing a second pneumatic butterfly valve, opening a first pneumatic butterfly valve, pouring materials with initial water content of 1.5-4% from a feed inlet, closing the first pneumatic butterfly valve to stop feeding when the materials reach the high material level of a feeding buffer hopper, and preparing blanking and drying;
step three, drying
Starting a lifting mechanism, conveying cooling water in a cooling water jacket of a lower cavity, starting a vacuum pump, wherein the power of the vacuum pump is 2-4kw, when the internal vacuum degree reaches-0.05 to-0.10 Mpa, opening a second pneumatic butterfly valve to perform discharging, enabling materials to uniformly flow into a receiving tray of the lifting mechanism, gradually ascending the materials to a discharging conveying groove along the conveying track direction of the lifting mechanism due to the action of a vibrating motor, falling into a second conveying pipeline through a discharging port and flowing into a discharging buffer hopper, closing the second pneumatic butterfly valve to stop discharging when the materials reach the high material level of the discharging buffer hopper, opening a fourth pneumatic butterfly valve, enabling the materials in the discharging buffer hopper to flow into a receiving tray again through a third conveying pipeline, gradually ascending to the discharging conveying groove along the conveying track direction of the lifting mechanism, gradually dropping into the second conveying pipeline again through a discharging buffer hopper and the third conveying pipeline, circulating for a plurality of times along the conveying track, opening the first pneumatic butterfly valve after circulating for a period of time, and replenishing the materials to the discharging buffer hopper for drying and the materials for 1.2-2.02 h to 2.02 percent of water content when the materials are prepared to be discharged;
step four, unloading
And when the material in the material discharging buffer hopper reaches the low material level, closing the fifth pneumatic butterfly valve, opening the third pneumatic butterfly valve, simultaneously opening vacuum, opening the second pneumatic butterfly valve for discharging when the internal vacuum degree meets the drying vacuum degree, and repeating the third step to enable the material to be fed, dried and discharged continuously in batches.
Compared with the prior art, the utility model has the beneficial effects that:
1. the vacuum dryer is provided with the closed feeding and discharging mechanism and the totally-closed pressure-maintaining heat-preserving cover, realizes high-efficiency drying by utilizing the ultra-large heat exchange area of the electric heating vibration spiral disc, the infrared heating mode and the rapid dehumidification principle under the vacuum condition, has better heat transfer effect and higher heating efficiency, conveys circulating materials through the spiral lifting mechanism, has low energy consumption and low noise, can avoid the wire drawing phenomenon of a conveying pipeline, improves the quality of the materials, and can set different circulation time according to different water content requirements, thereby effectively reducing the water content of the materials;
2. the bottom of the discharging buffer hopper is added with a reflux function, so that the material can be circularly reflux-dried in the equipment, and the process requirement of longer drying time is met;
3. the shell of the equipment adopts a detachable structure, is easier to detach and convenient to clean than a surrounding structure;
4. the lower cavity shell section of the vibrating motor is provided with a water-cooling jacket design, so that the vibrating motor can continuously work for a long time, and the production efficiency is improved.
Drawings
Fig. 1 is a schematic structural view of a vacuum dryer according to the present utility model.
Fig. 2 is a top view of a vacuum dryer according to the present utility model.
Wherein:
housing 1, upper chamber 1.1, lower chamber 1.2
Cover body 2
Lifting mechanism 3, base 3.1, support column 3.2, vibrating motor 3.3, receiving tray 3.4, center column 3.5, spiral disc 3.6, damping spring 3.7, reinforcing rib 3.8, discharging conveying groove 3.9, discharging port 3.10
Feed mechanism 4, feed buffer hopper 4.1, feed inlet 4.2, first pneumatic butterfly valve 4.3, second pneumatic butterfly valve 4.4, first material level detector 4.5, first conveying pipeline 4.6, second material level detector 4.7
The discharging mechanism 5, the discharging buffer hopper 5.1, the third material level detector 5.2, the second conveying pipeline 5.3, the visual window 5.4, the first temperature sensor 5.5, the third pneumatic butterfly valve 5.6, the third conveying pipeline 5.7, the fourth pneumatic butterfly valve 5.8, the fourth conveying pipeline 5.9, the fifth pneumatic butterfly valve 5.10 and the fourth material level detector 5.11
Thermal insulation partition plate 6
Cooling water inlet pipe 7
Cooling water outlet pipe 8
Infrared heater 9
First vacuum pumping port 10
Second vacuum extraction opening 11
Vacuum pressure gauge 12
Third vacuum extraction opening 13
Second temperature sensor 14
And a terminal 15.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-2, the vacuum dryer related to the utility model comprises a shell 1, a cover body 2, a lifting mechanism 3, a feeding mechanism 4, a discharging mechanism 5 and a plurality of infrared heaters 9, wherein the shell 1 adopts a detachable structure, the top of the shell 1 is fixedly connected with the bottom of the cover body 2, the lifting mechanism 3 is arranged in the shell 1, the feeding mechanism 3 and the discharging mechanism 4 are respectively positioned at the left side and the right side of the shell 1, the lower section of the inner cavity of the shell 1 is provided with a heat insulation partition plate 6, the inner cavity of the shell 1 is divided into an upper cavity 1.1 and a lower cavity 1.2 by the heat insulation partition plate 6, the infrared heaters 9 are uniformly arranged on the inner wall of the upper cavity 1.1, a cooling water jacket is arranged on the side wall of the lower cavity 1.2, a cooling water inlet pipe 7 and a cooling water outlet pipe 8 are arranged on the cooling water jacket, the cooling water inlet pipe 7 is positioned at the lower part of the lower cavity 1.2, and the cooling water outlet pipe 8 is positioned at the upper part of the lower cavity 1.2;
the lifting mechanism 3 comprises a base 3.1, four supporting columns 3.2, two vibrating motors 3.3, a material receiving disc 3.4, a central column 3.5 and a plurality of spiral discs 3.6, wherein the base 3.1, the four supporting columns 3.2 and the two vibrating motors 3.3 are arranged in a lower cavity 1.2, the four supporting columns 3.2 are arranged around the base 3.1 in a surrounding mode, the two vibrating motors 3.3 are arranged on the base 3.1 and are respectively positioned at the front side and the rear side of the base 3.1, the two vibrating motors 3.3 are obliquely arranged, the two vibrating motors 3.3 are obliquely opposite, the central column 3.5, the material receiving disc 3.4 and the spiral discs 3.6 are arranged in an upper cavity 1.1, the bottom end of the central column 3.5 penetrates through a heat insulation partition plate 6 and is fixedly connected with the base 3.1, the material receiving disc 3.4 is sleeved on the lower section of the central column 3.5, a plurality of spiral springs 3.7 penetrating through the heat insulation partition plate 6 are arranged between the bottom of the material receiving disc 3.4 and the top of the supporting columns 3.2, a plurality of spiral connectors 3.6 are respectively arranged on the front side and rear sides of the base 3.1, the spiral discs 3.6 are obliquely opposite, a plurality of spiral discs 3.6 are arranged on the spiral discs 3.6 and are arranged on the spiral discs 3.6, a plurality of spiral discs 3.6 are arranged on the spiral discs 3.6 and 3, a plurality of spiral discs 3.6 are arranged on the spiral discs 3 and 3.3 and 3, and 3 channels 3 and 3 channels are arranged on the spiral discs and 3;
the feeding mechanism 4 comprises a feeding buffer hopper 4.1, the feeding buffer hopper 4.1 is fixedly arranged on the outer wall of the shell 1 through a bracket, a first material level detector 4.5 and a second material level detector 4.7 are respectively arranged at the upper section and the lower section of the side wall of the feeding buffer hopper 4.1, the first material level detector 4.5 is used for detecting whether materials reach the high material level of the feeding buffer hopper 4.1, the second material level detector 4.7 is used for detecting whether the materials reach the low material level of the feeding buffer hopper 4.1, the top of the feeding buffer hopper 4.1 is provided with a feeding port 4.2 extending upwards, a first pneumatic butterfly valve 4.3 is arranged at the lower section of the feeding port 4.2, the bottom of the feeding buffer hopper 4.1 is connected with the lower section of the upper cavity 1.1 through a first conveying pipeline 4.6, the inner end of the first conveying pipeline 4.6 extends into the upper cavity 1 and is positioned above a material receiving disc 3.4, and the first conveying pipeline 4.6 is connected with the second pneumatic butterfly valve 4.4.1 at the upper end of the feeding buffer hopper 4.1;
the discharging mechanism 5 comprises a discharging buffer hopper 5.1, the discharging buffer hopper 5.1 is fixedly arranged on the outer wall of the shell 1 through a bracket, a third material level detector 5.2 and a fourth material level detector 5.11 are respectively arranged at the upper section and the lower section of the side wall of the discharging buffer hopper 5.1, the third material level detector 5.2 is used for detecting whether materials reach the high material level of the discharging buffer hopper 5.1, the fourth material level detector 5.11 is used for detecting whether materials reach the low material level of the discharging buffer hopper 5.1, a visual window 5.4 is arranged between the third material level detector 5.2 and the fourth material level detector 5.11, the top of the discharging buffer hopper 5.1 is connected with the upper section of the upper cavity 1.1 through a second conveying pipeline 5.3, the inner end of the second conveying pipeline 5.3 stretches into the upper cavity 1.1 and is positioned right below a discharging port 3.10, the second conveying pipeline 5.3 is positioned at the upper end of the upper cavity 1.1 and is provided with a third material level detector 5.2 and a fourth conveying pipeline 5.5.1, a butterfly valve 5.9 is arranged at the upper end of the fourth conveying pipeline 5.5.5.5.1, a fourth pipeline 5.9 is connected with the upper end of the upper cavity 5.1, and the fourth pipeline 5.5.5.5.5.1 is connected with the fourth pipeline, and the fourth pipeline is connected with the upper pipeline 5.5.5.5.5.5.5.1 through a third pipeline 9;
the top of the feeding buffer hopper 4.1 is also provided with a first vacuum extraction opening 10;
the top of the discharging buffer hopper 5.1 is also provided with a second vacuum extraction opening 11 and a vacuum pressure gauge 12;
the upper section of the upper chamber 1.1 is provided with a third vacuum pumping port 13;
the side walls of the upper chamber 1.1 and the lower chamber 1.2 are provided with second temperature sensors 14;
the lower section of the lower chamber 1.2 is provided with outwardly extending terminals 15.
A production method of a vacuum dryer comprises the following specific operations:
step one, preheating
Respectively starting an electric heating jacket and an infrared heater, wherein the heating power of the electric heating jacket is 22-28kw, and the heating power of the infrared heater is 22-28kw, so that the heating temperature is 115-125 ℃;
step two, feeding
Closing a second pneumatic butterfly valve, opening a first pneumatic butterfly valve, pouring materials with initial water content of 1.5-4% from a feed inlet, closing the first pneumatic butterfly valve to stop feeding when the materials reach the high material level of a feeding buffer hopper, and preparing blanking and drying;
step three, drying
Starting a lifting mechanism, conveying cooling water in a cooling water jacket of a lower cavity, starting a vacuum pump, wherein the power of the vacuum pump is 2-4kw, when the internal vacuum degree reaches-0.05 to-0.10 Mpa, opening a second pneumatic butterfly valve to perform discharging, enabling materials to uniformly flow into a receiving tray of the lifting mechanism, gradually ascending the materials to a discharging conveying groove along the conveying track direction of the lifting mechanism due to the action of a vibrating motor, falling into a second conveying pipeline through a discharging port and flowing into a discharging buffer hopper, closing the second pneumatic butterfly valve to stop discharging when the materials reach the high material level of the discharging buffer hopper, opening a fourth pneumatic butterfly valve, enabling the materials in the discharging buffer hopper to flow into a receiving tray again through a third conveying pipeline, gradually ascending to the discharging conveying groove along the conveying track direction of the lifting mechanism, gradually dropping into the second conveying pipeline again through a discharging buffer hopper and the third conveying pipeline, circulating for a plurality of times along the conveying track, opening the first pneumatic butterfly valve after circulating for a period of time, and replenishing the materials to the discharging buffer hopper for drying and the materials for 1.2-2.02 h to 2.02 percent of water content when the materials are prepared to be discharged;
step four, unloading
And when the material in the material discharging buffer hopper reaches the low material level, closing the fifth pneumatic butterfly valve, opening the third pneumatic butterfly valve, simultaneously opening vacuum, opening the second pneumatic butterfly valve for discharging when the internal vacuum degree meets the drying vacuum degree, and repeating the third step to enable the material to be fed, dried and discharged continuously in batches.
Example 1
1. Preheating
Respectively starting an electric heating jacket and an infrared heater, wherein the heating power of the electric heating jacket is 25kw, and the heating power of the infrared heater is 25kw, so that the heating temperature is 120 ℃;
step two, feeding
Closing a second pneumatic butterfly valve, opening a first pneumatic butterfly valve, pouring 1000kg of PA6 slices from a feed inlet in batches, wherein the initial water content is 3%;
step three, drying
Starting a lifting mechanism, conveying cooling water into a cooling water jacket of a lower cavity, starting a vacuum pump, wherein the power of the vacuum pump is 2.2kw, starting blanking when the internal vacuum degree reaches-0.07 Mpa, and drying for 1.5h, wherein the thermal efficiency is 90%;
step four, unloading
And closing the third pneumatic butterfly valve, the lifting mechanism and the vacuum pump, and discharging when the inside is restored to normal pressure, wherein the water content of the PA6 slice is 0.15%.
Example two
1. Preheating
Respectively starting an electric heating jacket and an infrared heater, wherein the heating power of the electric heating jacket is 25kw, and the heating power of the infrared heater is 25kw, so that the heating temperature is 120 ℃;
step two, feeding
Closing a second pneumatic butterfly valve, opening a first pneumatic butterfly valve, pouring 1000kg of PET polyester chips in batches from a feed inlet, wherein the initial water content is 2%;
step three, drying
Starting a lifting mechanism, conveying cooling water into a cooling water jacket of a lower cavity, starting a vacuum pump, wherein the power of the vacuum pump is 3.7kw, starting blanking when the internal vacuum degree reaches-0.08 Mpa, and drying for 3 hours, wherein the thermal efficiency is 90%;
step four, unloading
And closing the third pneumatic butterfly valve, the lifting mechanism and the vacuum pump, and discharging when the inside is restored to normal pressure, wherein the moisture content of the PET polyester chip is 0.03%.
Example III
1. Preheating
Respectively starting an electric heating jacket and an infrared heater, wherein the heating power of the electric heating jacket is 25kw, and the heating power of the infrared heater is 25kw, so that the heating temperature is 120 ℃;
step two, feeding
Closing a second pneumatic butterfly valve, opening a first pneumatic butterfly valve, pouring 1000kg of calcium carbonate filling master batch from a feed inlet in batches, wherein the initial water content is 2%;
step three, drying
Starting a lifting mechanism, conveying cooling water into a cooling water jacket of a lower cavity, starting a vacuum pump, wherein the power of the vacuum pump is 3.7kw, starting blanking when the internal vacuum degree reaches-0.08 Mpa, and drying for 1.8h, wherein the thermal efficiency is 90%;
step four, unloading
And closing the third pneumatic butterfly valve, the lifting mechanism and the vacuum pump, and discharging when the inside is restored to normal pressure, wherein the water content of the calcium carbonate filling master batch is 0.1%.
The performance of the vacuum dryer and the conventional dehumidifying dryer related to the utility model are compared as follows:
the foregoing is merely a specific application example of the present utility model, and the protection scope of the present utility model is not limited in any way. All technical schemes formed by equivalent transformation or equivalent substitution fall within the protection scope of the utility model.
Claims (3)
1. A vacuum dryer, characterized in that: the automatic feeding device comprises a shell (1), a cover body (2), a lifting mechanism (3), a feeding mechanism (4), a discharging mechanism (5) and a plurality of infrared heaters (9), wherein the top of the shell (1) is fixedly connected with the bottom of the cover body (2), the lifting mechanism (3) is arranged in the shell (1), the feeding mechanism (4) and the discharging mechanism (5) are respectively positioned at the left side and the right side of the shell (1), a heat insulation partition plate (6) is arranged at the lower section of the inner cavity of the shell (1), the inner cavity of the shell (1) is partitioned into an upper cavity (1.1) and a lower cavity (1.2) by the heat insulation partition plate (6), and the infrared heaters (9) are uniformly arranged on the inner wall of the upper cavity (1.1);
the lifting mechanism (3) comprises a base (3.1), a plurality of support columns (3.2), two vibrating motors (3.3), a material receiving disc (3.4), a center column (3.5) and a plurality of spiral discs (3.6), wherein the base (3.1), the support columns (3.2) and the vibrating motors (3.3) are arranged in a lower cavity (1.2), the plurality of support columns (3.2) are enclosed around the base (3.1), the two vibrating motors (3.3) are arranged on the base (3.1) and are respectively positioned on the front side and the rear side of the base (3.1), the center column (3.5), the material receiving disc (3.4) and the spiral discs (3.6) are arranged in the upper cavity (1.1), the bottom end of the center column (3.5) passes through a heat insulation partition plate (6) and is fixedly connected with the base (3.1), the material receiving disc (3.4) is sleeved on the lower section of the center column (3.5), the spiral discs (3.6) are arranged on the bottom of the spiral discs (3.6) and are arranged on the bottom of the spiral discs (3.3.5) and are arranged on the bottom (3.5) and are arranged on the spiral discs (3.9, the joint of the first spiral disc (3.6) arranged from top to bottom is connected with the discharging conveying groove (3.9), and the joint of the last spiral disc (3.6) is connected with the receiving disc (3.4);
the feeding mechanism (4) comprises a feeding buffer hopper (4.1), the feeding buffer hopper (4.1) is fixedly arranged on the outer wall of the shell (1) through a bracket, a first material level detector (4.5) and a second material level detector (4.7) are respectively arranged at the upper section and the lower section of the side wall of the feeding buffer hopper (4.1), an upwardly extending feeding port (4.2) is arranged at the top of the feeding buffer hopper (4.1), a first pneumatic butterfly valve (4.3) is arranged at the lower section of the feeding port (4.2), the bottom of the feeding buffer hopper (4.1) is connected with the lower section of the upper cavity (1.1) through a first conveying pipeline (4.6), the inner end of the first conveying pipeline (4.6) stretches into the upper cavity (1.1) and is located above a material receiving disc (3.4), and a second pneumatic butterfly valve (4.4) is arranged at the connecting end of the first conveying pipeline (4.6) and the feeding buffer hopper (4.1).
The discharging mechanism (5) comprises a discharging buffer hopper (5.1), the discharging buffer hopper (5.1) is fixedly arranged on the outer wall of the shell (1) through a bracket, a third pneumatic butterfly valve (5.6) is arranged on the upper section and the lower section of the side wall of the discharging buffer hopper (5.1), a third material level detection meter (5.2) and a fourth material level detection meter (5.11) are respectively arranged, the top of the discharging buffer hopper (5.1) is connected with the upper section of the upper cavity (1.1) through a second conveying pipeline (5.3), the inner end of the second conveying pipeline (5.3) extends into the upper cavity (1.1) and is positioned under a discharging port (3.10), a third pneumatic butterfly valve (5.6) is arranged on the outer section of the upper cavity (1.1), the bottom of the discharging buffer hopper (5.1) is connected with the lower section of the upper cavity (1.1) through a third conveying pipeline (5.7), the inner end of the second conveying pipeline (5.3) extends into the upper cavity (1.1) and is positioned under the fourth pneumatic butterfly valve (3.10), the fourth conveying pipeline (5.5.5.5) is connected with the fourth pneumatic butterfly valve (5.5.5.1) and is arranged on the upper cavity (5.1), the outer end of the fourth conveying pipeline (5.9) is used as a discharge port;
a cooling water jacket is arranged on the side wall of the lower cavity (1.2), a cooling water inlet pipe (7) and a cooling water outlet pipe (8) are arranged on the cooling water jacket, the cooling water inlet pipe (7) is positioned at the lower part of the lower cavity (1.2), and the cooling water outlet pipe (8) is positioned at the upper part of the lower cavity (1.2);
damping springs (3.7) penetrating through the heat insulation partition plates (6) are arranged between the bottoms of the receiving trays (3.4) and the tops of the supporting columns (3.2).
2. A vacuum dryer according to claim 1, characterized in that: the second conveying pipeline (5.3) is located on the outer section of the upper chamber (1.1) and is provided with a first temperature sensor (5.5), and the side walls of the upper chamber (1.1) and the lower chamber (1.2) are respectively provided with a second temperature sensor (14).
3. A vacuum dryer according to claim 1, characterized in that: the production method comprises the following steps:
step one, preheating
Respectively starting an electric heating jacket and an infrared heater, wherein the heating power of the electric heating jacket is 22-28kw, and the heating power of the infrared heater is 22-28kw, so that the heating temperature is 115-125 ℃;
step two, feeding
Closing a second pneumatic butterfly valve, opening a first pneumatic butterfly valve, pouring materials with initial water content of 1.5-4% from a feed inlet, closing the first pneumatic butterfly valve to stop feeding when the materials reach the high material level of a feeding buffer hopper, and preparing blanking and drying;
step three, drying
Starting a lifting mechanism, conveying cooling water in a cooling water jacket of a lower cavity, starting a vacuum pump, wherein the power of the vacuum pump is 2-4kw, when the internal vacuum degree reaches-0.05 to-0.10 Mpa, opening a second pneumatic butterfly valve to perform discharging, enabling materials to uniformly flow into a receiving tray of the lifting mechanism, gradually ascending the materials to a discharging conveying groove along the conveying track direction of the lifting mechanism due to the action of a vibrating motor, falling into a second conveying pipeline through a discharging port, flowing into a discharging buffer hopper, closing the second pneumatic butterfly valve to stop discharging when the materials reach the high material level of the discharging buffer hopper, opening a fourth pneumatic butterfly valve, enabling the materials in the discharging buffer hopper to flow into a receiving tray again through a third conveying pipeline, gradually ascending to the discharging conveying groove along the conveying track direction of the lifting mechanism, gradually dropping into the second conveying pipeline again through a discharging buffer hopper and the third conveying pipeline, circulating for a plurality of times according to the conveying track, opening the first pneumatic butterfly valve after circulating for a period of time, and replenishing the materials to the drying buffer hopper for 1.2-2.02 h to 2.02% of water content when the materials are prepared for discharging;
step four, unloading
And when the material in the material discharging buffer hopper reaches the low material level, closing the fifth pneumatic butterfly valve, opening the third pneumatic butterfly valve, simultaneously opening vacuum, opening the second pneumatic butterfly valve for discharging when the internal vacuum degree meets the drying vacuum degree, and repeating the third step to enable the material to be fed, dried and discharged continuously in batches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811537484.8A CN109442913B (en) | 2018-12-15 | 2018-12-15 | Vacuum drier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811537484.8A CN109442913B (en) | 2018-12-15 | 2018-12-15 | Vacuum drier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109442913A CN109442913A (en) | 2019-03-08 |
| CN109442913B true CN109442913B (en) | 2023-12-22 |
Family
ID=65558821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811537484.8A Active CN109442913B (en) | 2018-12-15 | 2018-12-15 | Vacuum drier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109442913B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115843955A (en) * | 2022-12-06 | 2023-03-28 | 安徽中创食品检测有限公司 | Vacuum drying and sterilizing device for food processing |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB618854A (en) * | 1943-11-24 | 1949-03-01 | Adolf Martin Kobiolke | Improved process for seasoning timber |
| CN2237824Y (en) * | 1995-07-25 | 1996-10-16 | 付予 | Electrothermic drier |
| CN203848609U (en) * | 2014-04-04 | 2014-09-24 | 江阴市聚泰机械设备有限公司 | Continuous vibration lifting vacuum drier |
| CN204675270U (en) * | 2015-05-12 | 2015-09-30 | 南京京锦元科技实业有限公司 | Temperature controlling heating vibration drying lifting material feeder |
| CN105621103A (en) * | 2014-12-01 | 2016-06-01 | 常州常衡德宇粉体集成系统有限公司 | Positive-pressure conveying system device |
| CN207001737U (en) * | 2017-07-28 | 2018-02-13 | 杭州迈腾环保科技有限公司 | A kind of vacuum charging device |
| CN108036627A (en) * | 2017-12-29 | 2018-05-15 | 柳州市爱林机械有限公司 | Vertical cylinder electric and magnetic oscillation dryer |
| CN209763643U (en) * | 2018-12-15 | 2019-12-10 | 江阴市聚泰机械设备有限公司 | vacuum drier |
-
2018
- 2018-12-15 CN CN201811537484.8A patent/CN109442913B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB618854A (en) * | 1943-11-24 | 1949-03-01 | Adolf Martin Kobiolke | Improved process for seasoning timber |
| CN2237824Y (en) * | 1995-07-25 | 1996-10-16 | 付予 | Electrothermic drier |
| CN203848609U (en) * | 2014-04-04 | 2014-09-24 | 江阴市聚泰机械设备有限公司 | Continuous vibration lifting vacuum drier |
| CN105621103A (en) * | 2014-12-01 | 2016-06-01 | 常州常衡德宇粉体集成系统有限公司 | Positive-pressure conveying system device |
| CN204675270U (en) * | 2015-05-12 | 2015-09-30 | 南京京锦元科技实业有限公司 | Temperature controlling heating vibration drying lifting material feeder |
| CN207001737U (en) * | 2017-07-28 | 2018-02-13 | 杭州迈腾环保科技有限公司 | A kind of vacuum charging device |
| CN108036627A (en) * | 2017-12-29 | 2018-05-15 | 柳州市爱林机械有限公司 | Vertical cylinder electric and magnetic oscillation dryer |
| CN209763643U (en) * | 2018-12-15 | 2019-12-10 | 江阴市聚泰机械设备有限公司 | vacuum drier |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109442913A (en) | 2019-03-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109442913B (en) | Vacuum drier | |
| CN209763643U (en) | vacuum drier | |
| CN204902526U (en) | Grain drier | |
| CN201096447Y (en) | Highly effective energy-saving drying-machine | |
| CN203719350U (en) | Continuous pelleting drying device | |
| CN110081634A (en) | A kind of refrigerating device for materials with circulation air feed function | |
| CN104197667A (en) | Industrial compartment-type drying and crushing device | |
| CN102273719B (en) | Thin-layer quick combination heating vegetable dehydrating process and equipment | |
| CN205655601U (en) | Novel efficient dry material device | |
| CN101176568A (en) | Heating type vegetable dewaterer combined with flow and air feed | |
| CN210862061U (en) | Car plastic particle drying device | |
| CN108180712A (en) | A kind of circulation and energy-saving type clean type baking oven | |
| CN212720646U (en) | Hot melt adhesive granule desiccator | |
| CN212664181U (en) | Plastics auxiliary agent screening plant | |
| CN209191052U (en) | A kind of PP glass high efficiency particulate drying unit | |
| KR101100355B1 (en) | hopper type drying apparatus | |
| CN207763418U (en) | A kind of crops circulation dryer convenient for safeguarding | |
| CN106440734A (en) | Medicinal drying machine | |
| CN214214507U (en) | Foamed plastic processing system | |
| CN217257553U (en) | Drying device is used in cotton production of bubble | |
| CN206249952U (en) | Ultrathin coaxial cable cooling device | |
| CN214687631U (en) | Raw material feeding device of injection molding machine | |
| CN204303485U (en) | A kind of electric wire polyethylene insulation pellet drying device | |
| CN104833186A (en) | Electromagnetic induction screw conveying drying machine | |
| CN113494842B (en) | Uniform temperature dryer with multi-section heating system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |