CN212778273U

CN212778273U - Microwave vacuum low-temperature dryer with folding filter element

Info

Publication number: CN212778273U
Application number: CN202021058449.0U
Authority: CN
Inventors: 吴琦; 吴京
Original assignee: Guiyang Xinqi Microwave Industrial Co ltd
Current assignee: Guiyang Xinqi Microwave Industrial Co ltd
Priority date: 2020-06-10
Filing date: 2020-06-10
Publication date: 2021-03-23
Anticipated expiration: 2030-06-10

Abstract

The utility model provides a folding filter core microwave vacuum low temperature drying machine, includes microwave heater box, evacuation system, frame, automatically controlled cabinet, video monitoring, touch control screen, temperature controller, light, dry box, microwave heater box, evacuation system, automatically controlled cabinet are installed on frame upper portion, its characterized in that: the microwave heater is characterized in that a stand column is arranged at the inner bottom of the microwave heater box body, a supporting plate is arranged above the stand column, a drying box is placed on the supporting plate, and an auxiliary heating device is arranged in a region between the lower portion of the supporting plate and the stand column.

Description

Microwave vacuum low-temperature dryer with folding filter element

Technical Field

The utility model belongs to the technical field of the microwave drying, concretely relates to folding filter core microwave vacuum low temperature drying machine.

Background

The folding filter element is an important part in filter equipment, is used for filtering liquid and air, and has wide application in the industries of medicine, semiconductor, food, drinking water, chemical engineering and the like. Some folding filter core finished products must carry out washing and stoving processing in the production process, and folding filter core drying requirement is higher, and the moisture content need be reduced to 3-5 thousandth after the drying. However, due to the factors of the closed plastic shell of the folding filter element, poor heat-conducting property of plastic and the like, the traditional drying method used at present is difficult to transfer heat into the filter element, the shortest drying time is 20 hours, if one end of the folding filter element rod is closed, the time is prolonged to 60-100 hours, the energy consumption is high, the efficiency is low, meanwhile, pollution is easily caused, and the product delivery speed and the enterprise economic benefit are seriously influenced.

Because in the traditional heating mode, heat is conducted through convection, conduction and radiation and is permeated from the outside to the inside, the air convection heat transfer is difficult to conduct in a vacuum state, the materials can only be heated by means of heat conduction and radiation, the surface temperature of the heated materials is high, the internal temperature is low, the internal and external temperature difference is large, and the inside is difficult to dry. The microwave heating drying has the advantages of high speed, high thermal efficiency, short drying time, uniform temperature inside and outside the material, energy conservation, high drying efficiency, good quality and the like. But current folding filter core microwave drying equipment only can dry 10 folding filter cores at every turn, still need let in dry compressed gas auxiliary drying, and can not simultaneous working with vacuum system, and the operation is complicated, and equipment cost is high, and folding filter core is dry can appear the phenomenon of striking sparks to the later stage for the unable normal operating of equipment damages equipment simultaneously, makes many folding filter core manufacturers expect and the step. Therefore, it is highly desirable to develop a low temperature, fast, and efficient microwave drying apparatus for pleated filter elements.

Disclosure of Invention

Not enough to prior art, the utility model provides a folding filter core microwave vacuum low temperature drying machine solves folding filter core and adopts traditional drying time long, the temperature is high complicated with current microwave drying operation, production efficiency is low, the problem of phenomenon of striking sparks easily appears.

The technical scheme of the utility model a folding filter core microwave vacuum low temperature drying machine, including microwave heater box, evacuation system, frame, automatically controlled cabinet, video monitoring, touch control screen, temperature controller, light, dry box, microwave heater box, evacuation system, automatically controlled cabinet are installed on frame upper portion, microwave heater box inner bottom is provided with the stand, the stand top is provided with the layer board, place dry box on the layer board be provided with auxiliary heating device in the region between layer board below and the stand.

Furthermore, the upright posts are arranged in a rectangular shape and comprise a left upright post, a middle upright post and a right upright post; and 6 columns are uniformly arranged at the bottom of the microwave heater box body in each row of the left upright column, the middle upright column and the right upright column.

The supporting plate is of a rectangular structure, the edge of the supporting plate is convex, a square hole is formed in the middle of the supporting plate, and the position of the square hole corresponds to the position of a gap of the stand column.

The drying box is of a cuboid structure, the upper portion of the drying box is open, the bottom of the drying box is provided with regularly-arranged round through holes, and the drying box is placed on the supporting plate corresponding to the square holes in the supporting plate.

The auxiliary heating device is composed of a hollow round pipe parallel to the supporting plate and a vertical pipe vertical to the hollow round pipe, an electric heating pipe is arranged in the hollow round pipe, and an air outlet hole is formed in the hollow round pipe; one end of the vertical pipe extends to the outside of the microwave heater box body, an air inlet electromagnetic valve is arranged on the vertical pipe outside the microwave heater box body, and the electromagnetic valve is located at the position of the rack.

Further, the number of the square holes formed in the middle of the supporting plate is 5.

The bottom of the drying box is provided with 24 circular through holes, and each circular through hole corresponds to one position of the folding filter element.

The supporting plate and the drying box are both made of polypropylene materials.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. compared with the traditional electric heating drying folding filter element equipment, the electric heating hot air drying needs 70-80 ℃ for about 20 hours, the energy consumption is high, the efficiency is low, and meanwhile, the pollution rate of the folding filter element is easily increased due to hot air circulation. The utility model can save more than 80% of energy consumption, the drying temperature is lower than 60 ℃, the drying time is 2-3 hours, and the utility model has the advantages of low temperature, high speed, high drying quality, energy conservation and the like.

2. Compared with the existing folding filter element microwave drying equipment, the utility model has the advantages that through the arrangement of the square holes on the supporting plate and the round through holes at the bottom of the drying box, each round through hole corresponds to each folding filter element center hole, and the better ventilation effect is achieved; the interior of the box body of the microwave heater is in a vacuum state under the action of a vacuumizing system, and a plurality of folding filter elements contained in each drying box are firstly dried to the minimum moisture content limit which can be dried by microwaves under the action of microwave heating, and then the microwave heating stops working. Then utilize the setting in layer board below hole, the auxiliary heating device that sets up in the region between layer board below and stand promptly, utilize the inside and outside air pressure difference of microwave heater box, open the solenoid valve on the auxiliary heating device, outside air current gets into auxiliary heating device and by rapid heating, the air current after the heating upwards blows in the folding filter core centre bore through the venthole on the auxiliary heating device, dry the qualified state to folding filter core, folding filter core drying quality greatly promotes, and dry 240 folding filter cores simultaneously, drying efficiency promotes greatly, the phenomenon of striking sparks in the microwave drying later stage has also been avoided, better effect has been gained in actual industrial production uses.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is an enlarged view I of FIG. 2;

FIG. 4 is a view of the structure of the column arrangement of the present invention;

FIG. 5 is a structural view of the support plate of the present invention;

FIG. 6 is a sectional structure view of the drying box of the present invention;

FIG. 7 is a layout view of the circular through holes of the drying box of the present invention;

in the figure: 1. microwave heater box, 2, vacuum pumping system, 3, frame, 4, video monitoring, 5, temperature controller, 6, light, 7, dry box, 71, round through hole, 8, electric cabinet, 9, touch control screen, 10, stand, 101, left stand, 102, center pillar, 103, right stand, 11, layer board, 111, square hole, 12, auxiliary heating device, 121, hollow pipe, 122, riser, 123, solenoid valve, 13, folding filter core.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model discloses a specific embodiment is: a microwave vacuum low-temperature dryer with a foldable filter element comprises a microwave heater box body 1, a vacuumizing system 2, a rack 3, an electric control cabinet 8, a video monitor 4, a touch control screen 9, a temperature controller 5, an illuminating lamp 6 and a drying box 7, wherein the microwave heater box body 1, the vacuumizing system 2 and the electric control cabinet 8 are installed on the upper portion of the rack 3. The microwave heater is characterized in that a vertical column 10 is arranged at the bottom in the microwave heater box body 1, a supporting plate 11 is arranged above the vertical column 10, a drying box 7 is placed on the supporting plate 11, and an auxiliary heating device 12 is arranged in a region between the lower portion of the supporting plate 11 and the vertical column 10.

The further description is as follows: the auxiliary heating device 12 is composed of a hollow circular tube 121 parallel to the supporting plate 11 and a vertical tube 122 perpendicular to the hollow circular tube 121, an electric heating tube is arranged in the hollow circular tube 121, and an air outlet is arranged on the hollow circular tube 121; one end of the vertical pipe 122 extends to the outside of the microwave heater box 1, an air inlet electromagnetic valve 123 is arranged on the vertical pipe 122 outside the microwave heater box 1, and the electromagnetic valve 123 is located at the position of the rack 3.

The further description is as follows: as shown in fig. 4, the upright columns 10 are arranged in a rectangular shape and are composed of a left upright column 101, a middle upright column 102 and a right upright column 103; each row of the left upright post 101, the middle upright post 102 and the right upright post 103 is uniformly provided with 6 upright posts at the bottom of the microwave heater box body 1.

As shown in fig. 5, the supporting plate 11 is a rectangular structure, the edge of the supporting plate is convex, a square hole 111 is formed in the middle of the supporting plate 11, and the position of the square hole 111 corresponds to the gap of the upright post 10, that is, the position of the square hole 111 corresponds to the gap between the left upright post 101, the middle upright post 102 and the right upright post 103; the number of the square holes 111 formed in the middle of the supporting plate 11 is 5.

As shown in fig. 6 and 7, the drying box 7 is of a rectangular parallelepiped structure, the upper portion of the drying box is open, the bottom of the drying box is provided with regularly arranged circular through holes 71, and the drying box 7 is placed on the supporting plate 11 corresponding to the square holes 111 on the supporting plate 11; 24 circular through holes 71 are arranged at the bottom of the drying box 7, and each circular through hole 71 corresponds to the position of one folded filter element 13.

The supporting plate 11 and the drying box 7 are both made of polypropylene materials.

During operation, as shown in fig. 3, the folded filter elements 13 to be dried are loaded into the drying boxes 7, and since each drying box 7 has 24 circular through holes 71, each circular through hole 71 is correspondingly loaded into one folded filter element 13, so that each drying box 7 can actually contain 24 folded filter elements 13 to be dried. Place two layer boards 11 on the stand 10 of microwave heater box 1 bottom respectively, then will hold the dry box 7 that is equipped with folding filter element 13 and correspond the square hole 111 position of layer board 11 and place on layer board 11, because be provided with 5 square holes 111 on the layer board 11, consequently, the utility model discloses once can dry 240 folding filter element 13 simultaneously.

After the drying box 7 is sequentially placed into the microwave heater box body 1, the box door is closed, the vacuum pumping system 2 and the microwave heating system are sequentially started, when the folded filter element 13 is dried until the moisture content is lower than 2%, the microwave heating system stops working, and the auxiliary heating device 12 is started. By utilizing the difference between the internal pressure and the external pressure of the microwave heater box body 1, the electromagnetic valve 123 is opened discontinuously, external air flow enters the vertical pipe 122 and the hollow circular pipe 121 through the electromagnetic valve 123, and is heated by the electric heating pipe in the hollow circular pipe 121, and then directly blows in the central hole of the folding filter element 13 through the square hole 111 of the supporting plate 11 and the circular through hole 71 at the bottom of the drying box 7 through the air outlet hole in the hollow circular pipe 121, and the flowing hot gas can rapidly dry the final moisture of the folding filter element 13 to meet the qualified requirement. And after drying, taking out the drying box 7 with the folding filter element 13, and turning off the power supply.

It should be particularly noted that, in the process of sequentially drying the folded filter element 13 by microwave heating and auxiliary hot air drying, the vacuum pumping system 2 is always kept in operation, that is, the interior of the microwave heater box 1 is always kept in a vacuum state. In the utility model, the flowing hot air formed by the auxiliary heating device 12 completely depends on the action of the air pressure difference inside and outside the equipment, and no power machine is used.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a folding filter core microwave vacuum low temperature drying machine, includes microwave heater box, evacuation system, frame, automatically controlled cabinet, video monitoring, touch control screen, temperature controller, light, dry box, microwave heater box, evacuation system, automatically controlled cabinet are installed on frame upper portion, its characterized in that: the microwave heater is characterized in that a stand column is arranged at the inner bottom of the microwave heater box body, a supporting plate is arranged above the stand column, a drying box is placed on the supporting plate, and an auxiliary heating device is arranged in a region between the lower portion of the supporting plate and the stand column.

2. The microwave vacuum low-temperature dryer with the folding filter element as claimed in claim 1, wherein: the upright posts are arranged in a rectangular shape and comprise a left upright post, a middle upright post and a right upright post; and 6 columns are uniformly arranged at the bottom of the microwave heater box body in each row of the left upright column, the middle upright column and the right upright column.

3. The microwave vacuum low-temperature dryer with the folding filter element as claimed in claim 1, wherein: the supporting plate is of a rectangular structure, the edge of the supporting plate is convex, a square hole is formed in the middle of the supporting plate, and the position of the square hole corresponds to the position of a gap of the stand column.

4. The microwave vacuum low-temperature dryer with the folding filter element as claimed in claim 1, wherein: the drying box is of a cuboid structure, the upper portion of the drying box is open, the bottom of the drying box is provided with regularly-arranged round through holes, and the drying box is placed on the supporting plate corresponding to the square holes in the supporting plate.

5. The microwave vacuum low-temperature dryer with the folding filter element as claimed in claim 1, wherein: the auxiliary heating device is composed of a hollow round pipe parallel to the supporting plate and a vertical pipe vertical to the hollow round pipe, an electric heating pipe is arranged in the hollow round pipe, and an air outlet hole is formed in the hollow round pipe; one end of the vertical pipe extends to the outside of the microwave heater box body, an air inlet electromagnetic valve is arranged on the vertical pipe outside the microwave heater box body, and the electromagnetic valve is located at the position of the rack.

6. The microwave vacuum cryogenic dryer with folded filter elements as claimed in claim 3, wherein: the number of the square holes formed in the middle of the supporting plate is 5.

7. The microwave vacuum cryogenic dryer with folded filter elements as claimed in claim 4, wherein: the bottom of the drying box is provided with 24 circular through holes, and each circular through hole corresponds to one position of the folding filter element.

8. The microwave vacuum low-temperature dryer with the folding filter element as claimed in claim 1, wherein: the supporting plate and the drying box are both made of polypropylene materials.