CN113915974A - Drying device for high-moisture and ultralow-specific gravity materials - Google Patents
Drying device for high-moisture and ultralow-specific gravity materials Download PDFInfo
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- CN113915974A CN113915974A CN202111216433.7A CN202111216433A CN113915974A CN 113915974 A CN113915974 A CN 113915974A CN 202111216433 A CN202111216433 A CN 202111216433A CN 113915974 A CN113915974 A CN 113915974A
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- 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
- F26B11/02—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
- F26B11/04—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis
- F26B11/0463—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having internal elements, e.g. which are being moved or rotated by means other than the rotating drum wall
- F26B11/0477—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having internal elements, e.g. which are being moved or rotated by means other than the rotating drum wall for mixing, stirring or conveying the materials to be dried, e.g. mounted to the wall, rotating with the drum
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
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- 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
- F26B25/001—Handling, e.g. loading or unloading arrangements
- F26B25/002—Handling, e.g. loading or unloading arrangements for bulk goods
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- 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
- F26B25/04—Agitating, stirring, or scraping devices
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- 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
- F26B25/06—Chambers, containers, or receptacles
- F26B25/14—Chambers, containers, receptacles of simple construction
- F26B25/16—Chambers, containers, receptacles of simple construction mainly closed, e.g. drum
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Solid Materials (AREA)
Abstract
A drying device for high-moisture and ultra-low specific gravity materials comprises a heat source and a drying cylinder, wherein a heat source outlet is connected with a feeding cylinder, and an outlet of the feeding cylinder is in sealed splicing with an inlet of the drying cylinder; a positive pressure air conveying device and a material inlet are arranged at one end of the material inlet barrel, which is close to the outlet of the material inlet barrel, and a blowing pipe of the positive pressure air conveying device is inserted into the lower part of the material inlet and is used for blowing materials into the drying barrel through air pressure; the inner cavity of the drying cylinder is sequentially provided with a spiral material guiding area, a lifting material raising area, a multi-channel buffer area and a cooling area from front to back; the multichannel buffer zone comprises a plurality of partition plates which are uniformly distributed on the inner wall of the drying cylinder along the circumferential direction, the partition plates are respectively arranged along the radial direction of the drying cylinder, and arc-shaped spring plates are respectively connected between the inner ends of two adjacent partition plates and are used for forming a plurality of independent fan-shaped channels; a dust collection tail cover is arranged at one end of an outlet of the drying cylinder, and the outlet of the drying cylinder is in sealed splicing with an inlet of the dust collection tail cover; used for recovering and discharging the dried materials. The drying device has high working efficiency, good drying effect and no pollution.
Description
Technical Field
The invention relates to a material drying device, in particular to a drying device for high-moisture and ultralow-specific gravity materials.
Background
With the increasing investment of our country to the livestock breeding industry, the gap of domestic pasture is large and the trend of changing straws into forage grass is increasingly obvious. However, the wrapping, storage and storage of the straws and the pasture grass are very challenging, a large area of storage space is needed on one hand, the materials of the type II belong to materials with high moisture and ultralow specific gravity, the moisture content of the materials is between 20 and 40 percent, the materials are very easy to mildew when the moisture content of the materials is more than or equal to 15 percent, external factors such as temperature, humidity and the like have great influence on the quality of finished products, the materials are difficult to store for a long time, and only can be discarded or burned on site, so that the environment is polluted, and great potential safety hazards exist.
Influenced by various aspects such as weather, the whole production period of the forage grass is only 4 months at present, namely the forage grass is harvested before spring festival in autumn. If the forage grass is stored after being dried, the high-quality forage grass can be produced 12 months all the year round, and the embarrassment that the forage grass cannot be produced in summer, is in short supply and depends on import is relieved. Therefore, the development of the drying equipment is imperative.
Disclosure of Invention
The invention aims to solve the technical problem of providing a drying device for high-moisture and ultralow-specific gravity materials, which has high working efficiency, good drying effect and no pollution.
In order to achieve the purpose, the invention adopts the following technical scheme:
a drying device for high-moisture and ultra-low specific gravity materials comprises a heat source and a drying cylinder which is obliquely arranged and can rotate, wherein a charging barrel is connected with an outlet of the heat source, and an outlet of the charging barrel is in sealed insertion connection with an inlet of the drying cylinder;
a positive pressure air conveying device and a material inlet are arranged at one end of the material inlet barrel, which is close to the outlet of the material inlet barrel, and a blowing pipe of the positive pressure air conveying device is inserted into the lower part of the material inlet and is used for blowing materials into the drying barrel through air pressure;
the inner cavity of the drying cylinder is sequentially provided with a spiral material guiding area, a lifting material raising area, a multi-channel buffer area and a cooling area from front to back; the multichannel buffer zone comprises a plurality of partition plates which are uniformly distributed on the inner wall of the drying cylinder along the circumferential direction, the partition plates are respectively arranged along the radial direction of the drying cylinder, and arc-shaped spring plates are respectively connected between the inner ends of two adjacent partition plates and are used for forming a plurality of independent fan-shaped channels;
a dust collection tail cover is arranged at one end of an outlet of the drying cylinder, and the outlet of the drying cylinder is in sealed splicing with an inlet of the dust collection tail cover; used for recovering and discharging the dried materials.
As further preferred, a small lifting plate is fixed on each of the two sides of each partition plate, the small lifting plates are perpendicular to the partition plates, and two adjacent small lifting plates are arranged in a staggered mode and used for stirring materials entering the fan-shaped channel.
Preferably, the lifting material region is formed by lifting material plates which are uniformly distributed and fixed on the inner wall of the drying cylinder along the circumferential direction, and the lifting material plates are arranged in multiple sections along the axial direction of the drying cylinder and are arranged in a staggered mode, and are used for lifting materials to the upper portion in the drying cylinder and enabling the materials to naturally fall.
Preferably, the positive pressure air conveying device comprises a blower arranged on the charging barrel through a support, an outlet of the blower is connected with a homogenizing air bag, the homogenizing air bag is cylindrical, two ends of the homogenizing air bag are closed, and a conical air inlet is formed in the middle of the outer edge of one side of the homogenizing air bag and is connected with an outlet of the blower; the bottom of the outer edge of the homogenizing air bag is uniformly connected with a plurality of air blowing pipes; the homogenizing air bag is internally provided with a homogenizing pore plate, and the homogenizing pore plate is provided with a plurality of small pores for homogenizing and dispersing the air flow.
As further preferred, the lower part corresponds the pan feeding mouth below and is equipped with the arc layer board in the pan feeding section of thick bamboo, and the arc layer board inserts in the section of thick bamboo of drying, makes great proportion material fall on the layer board and naturally slides down in the section of thick bamboo of drying to prevent to get into the problem of blowing not in place great proportion material.
Preferably, the first reversing valve is arranged in the middle of the feeding barrel, the second outlet and the heat source inlet are respectively arranged on the two sides of the first reversing valve on the feeding barrel, the second reversing valve is respectively arranged at the second outlet and the heat source inlet, the tubular heat exchanger is arranged on one side of the feeding barrel, the heat exchange medium inlet of the heat exchanger is connected with the second outlet through the second reversing valve, the air inlet at one end of the heat exchanger is connected with the heat exchange air blower, the heat exchange medium outlet at the other end of the heat exchanger is connected with the induced draft fan through the cyclone separator, and the hot air outlet of the heat exchanger is connected with the heat source inlet through the second reversing valve, so that the heat source can be switched and the heat exchanger can provide a clean heat source.
Preferably, a discharge port at the lower end of the dust collection tail cover is connected with a double-shaft screw conveyor through an inserting plate valve and used for discharging dried materials; the air outlet at the upper end of the dust collection tail cover is connected with a negative pressure induced draft fan through a dust removal device and is used for purifying exhausted gas and then exhausting the purified gas into the atmosphere.
Preferably, a filter screen is arranged at an air outlet at the upper end of the dust collection tail cover and is used for intercepting materials with smaller specific gravity; an induction probe and an air cannon are respectively arranged on the elbow connected with the exhaust port at the upper end of the dust collection tail cover and above the corresponding filter screen, the induction probe is electrically connected with the air cannon through a controller and used for exciting the air cannon to work to intermittently clean the filter screen when the resistance value of the filter screen reaches a set value.
Preferably, the dust removing device is formed by sequentially connecting a cyclone dust collector and a bag-type dust collector, an air inlet of the cyclone dust collector is communicated with an air outlet at the upper end of the dust collecting tail cover, and an air outlet of the bag-type dust collector is connected with the negative-pressure draught fan.
More preferably, the heat source is a biomass boiler.
The invention has the beneficial effects that:
1. because be close to its export one end and be equipped with malleation air conveying device and pan feeding mouth on going into the feed cylinder, the blowing pipe of malleation air conveying device inserts pan feeding mouth lower part, consequently can blow in the drying cylinder with the material through the wind pressure, just can realize preliminary air-drying to the material in the pan feeding mouth to subsequent drying process of being convenient for improves drying efficiency.
2. The inner cavity of the drying cylinder is sequentially provided with a spiral material guiding area, a lifting material raising area, a multi-channel buffer area and a cooling area from front to back; the spiral material guiding area can quickly guide materials into the lifting material raising area along with the rotation of the drying cylinder, and the lifting material raising area can quickly dry the materials in a waterfall manner to remove surface free water; therefore, the drying efficiency can be improved.
3. Because the multichannel buffer zone comprises a plurality of partition plates which are uniformly distributed on the inner wall of the drying cylinder along the circumferential direction, the inner ends of two adjacent partition plates are respectively connected with the arc-shaped spring plate, a plurality of independent fan-shaped channels can be formed by the partition plates and the arc-shaped spring plates, materials can be dispersed and enter each fan-shaped channel along with the rotation of the drying cylinder, the advancing speed of the materials can be quickly reduced, and crystal water in the materials can be effectively removed; therefore, the drying effect is good, and the environment is protected without pollution.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a partial view of fig. 1 from direction a.
Fig. 3 is a schematic structural view of the positive pressure air supply device.
FIG. 4 is a schematic diagram of the structure of a homogenizing gas package.
Fig. 5 is a sectional view B-B of fig. 1.
Fig. 6 is a cross-sectional view C-C of fig. 1.
Fig. 7 is a schematic structural view of the dust collection tail cover.
Fig. 8 is a right side view of fig. 7.
In the figure: the device comprises a heat source 1, a heat exchange air blower 2, a feeding barrel 3, a heat exchanger 4, a positive pressure air conveying device 5, a feeding port 6, a cyclone separator 7, a drying barrel 8, a dust collection tail cover 9, a cyclone dust collector 10, a bag-type dust collector 11, a negative pressure induced draft fan 12, a plugboard valve 13, a double-shaft screw conveyor 14, a driving motor 15, a high-temperature induced draft fan 16, a first reversing valve 17, a second reversing valve 18, an air blower 19, a homogenizing gas bag 20, a blowing pipe 21, an arc-shaped supporting plate 22, a homogenizing pore plate 23, a lifting material plate 24, a dividing plate 25, a fan-shaped channel 26, a small lifting material plate 27, an arc-shaped spring plate 28, a filter screen 29, an inductive probe 30 and an air cannon 31.
Detailed Description
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
As shown in fig. 1-8, the drying device for high-moisture and ultra-low specific gravity materials according to the present invention comprises a heat source 1 and a drying cylinder 8 which is obliquely arranged and rotatable, wherein the drying cylinder 8 is connected with a driving motor 15 arranged on a base through a gear transmission, an outlet of the heat source 1 is connected with a charging barrel 3, and an outlet of the charging barrel 3 is hermetically inserted with an inlet of the drying cylinder 8; the heat source 1 is preferably a biomass fluidized bed furnace to reduce the use cost.
A positive pressure air conveying device 5 and a feeding port 6 are arranged at one end, close to an outlet, of the feeding barrel 3, and a blowing pipe 21 of the positive pressure air conveying device 5 is inserted into the lower portion of the feeding port 6 and points to an inlet of the drying barrel 8 and is used for blowing materials into the drying barrel 8 through air pressure. The positive pressure air conveying device 5 comprises an air blower 19 which is arranged on the charging barrel 3 through a support, the outlet of the air blower 19 is connected with a homogenizing air bag 20, the homogenizing air bag 20 is cylindrical, the two ends of the homogenizing air bag are closed, the middle part of the outer edge of one side of the homogenizing air bag 20 is provided with a conical air inlet 201, and the conical air inlet is hermetically connected with the outlet of the air blower 19; a plurality of blowing pipes 21 are uniformly distributed and connected at the bottom of the outer edge of the homogenizing air bag 20; a V-shaped homogenizing pore plate 23 is arranged in the homogenizing gas bag 20, and a plurality of small holes are arranged on the homogenizing pore plate 23 and used for homogenizing and dispersing the gas flow.
The blower 19 is driven and controlled by a variable frequency motor, and the air volume and the pressure can be adjusted at any time according to the properties and the quantity of the dried materials. Ensuring the compatibility with the negative pressure of the system.
An arc-shaped supporting plate 22 is fixed at the lower part in the feeding barrel 3 corresponding to the lower part of the feeding port 6, the arc-shaped supporting plate 22 is obliquely arranged, and the lower end of the arc-shaped supporting plate is inserted into the drying barrel 8, so that the materials with larger specific gravity fall on the supporting plate and naturally slide into the drying barrel 8, and the problem that the materials with larger specific gravity cannot be blown in place when entering the feeding port 6 is solved. An access hole 303 is arranged at one end of the bottom of the material inlet barrel 3 close to the outlet thereof, and an openable access door is arranged.
The middle of the feeding barrel 3 is provided with a first reversing valve 17, the two sides of the first reversing valve 17 on the feeding barrel 3 are respectively provided with a second outlet 301 and a heat source inlet 302, the second outlet 301 and the heat source inlet 302 are respectively connected with a second reversing valve 18, one side of the feeding barrel 3 is provided with a tubular heat exchanger 4, the heat exchange medium inlet of the heat exchanger 4 is connected with the second outlet 301 through the second reversing valve, the air inlet of one end of the heat exchanger 4 is connected with a heat exchange air blower 2, the heat exchange medium outlet of the other end of the heat exchanger 4 is connected with a high-temperature induced draft fan 16 through a cyclone separator 7, and the hot air outlet of the heat exchanger 4 is connected with the heat source inlet 302 through the second reversing valve so as to be convenient for switching the heat source to provide a clean heat source by using the heat exchanger 4. The heat exchange medium discharged from the heat exchanger 4 can be filtered by the cyclone 7.
The inner cavity of the drying cylinder 8 is sequentially provided with a spiral material guiding area 801, a lifting material lifting area 802, a multi-channel buffer area 803 and a cooling area 804 from front to back. And the spiral material guiding area is internally provided with a spiral blade for guiding materials into the lifting material raising area. The lifting material lifting area is formed by L-shaped lifting material plates 24 which are uniformly distributed and fixed on the inner wall of the drying cylinder 8 along the circumferential direction, and the lifting material plates 24 are arranged in multiple sections along the axial direction of the drying cylinder 8 and are mutually staggered for lifting materials to the upper part in the drying cylinder 8 and then enabling the materials to naturally fall.
The multi-channel buffer zone comprises a plurality of partition plates 25 uniformly distributed on the inner wall of the drying cylinder 8 along the circumferential direction, in the embodiment, 8 partition plates 25 are taken as an example, each partition plate 25 is respectively arranged along the radial direction of the drying cylinder 8, and an arc-shaped spring plate 28 is respectively connected between the inner ends of two adjacent partition plates 25 and used for forming a plurality of independent fan-shaped channels 26. Two small lifting plates 27 are respectively fixed on two sides of each partition plate 25, the small lifting plates 27 are vertically arranged with the partition plates 25, and two adjacent small lifting plates are arranged in a staggered manner and used for stirring materials entering the fan-shaped channel 26. The cooling area is formed by the smooth inner wall of the drying cylinder.
A dust collection tail cover 9 is arranged at one end of the outlet of the drying cylinder 8, and the outlet of the drying cylinder 8 is in sealed insertion connection with the inlet of the dust collection tail cover 9; used for recovering and discharging the dried materials.
A discharge port at the lower end of the dust collection tail cover 9 is connected with a double-shaft screw conveyor 14 through an inserting plate valve 13, and the bottom of one end of a shell of the double-shaft screw conveyor 14 is provided with a discharge port 141 for discharging dried materials; the air outlet at the upper end of the dust collection tail cover 9 is connected with a negative pressure induced draft fan 12 through a dust removal device, and is used for purifying exhausted gas and then exhausting the purified gas into the atmosphere. The dust removing device is formed by sequentially connecting a cyclone dust collector 10 and a bag-type dust collector 11, an air inlet of the cyclone dust collector 10 is communicated with an air outlet at the upper end of a dust collecting tail cover 9 through a pipeline, and an air outlet of the bag-type dust collector 11 is connected with a negative-pressure draught fan 12.
A filter screen 29 is fixedly arranged at an air outlet at the upper end of the dust collection tail cover 9 and is used for intercepting materials with smaller specific gravity; an induction probe 30 and an air cannon 31 are respectively arranged on the elbow connected with the exhaust port at the upper end of the dust collection tail cover 9 and above the filter screen 29, the induction probe 30 is electrically connected with the air cannon 31 through a controller (not shown in the figure) and is used for exciting the air cannon 31 to work to intermittently clean the filter screen 29 when the resistance value of the filter screen 29 reaches a set value.
When the drying machine works, the type of the input heat source is selected according to the type of the material to be dried. When the biomass raw material used as fuel is to be dried, the first reversing valve is opened, the two second reversing valves are closed, the direct heat supply mode of the biomass fluidized bed furnace is started, and the heating medium discharged from the biomass fluidized bed furnace is directly discharged into the drying cylinder through the feeding cylinder. When clean materials such as forage grass used as feed are to be dried, the first reversing valve is closed, the second reversing valves are opened, the heat exchange air blower 2 and the high-temperature draught fan 16 are started, high-temperature dust-containing gas discharged during the working of the biomass fluidized bed furnace exchanges heat with clean air introduced by the heat exchange air blower 2 in the heat exchanger 4, and the discharged clean high-temperature gas returns to the charging barrel 3, so that the purposes of cleaning the materials and removing burning smell are achieved.
The driving motor of the drying cylinder 8 is started to drive the drying cylinder to rotate at a low speed, materials are evenly conveyed to the feeding port 6 by the conveying equipment after soil removal, crushing and silk kneading, the air blower 19 is started, and the materials are blown into the spiral material guiding area 801 of the drying cylinder 8 through positive pressure. Under the triple action of a positive pressure air supply and negative pressure draught fan 12 and helical blades in a helical material guide area 801, materials rapidly advance to a lifting material raising area 802, and waterfall type material raising is carried out under the action of a lifting material raising plate, so that the materials are fully contacted with hot air entering a drying cylinder 8, the materials are rapidly dried, and free water on the surface is removed;
then the material advances to multichannel buffer area 803, slows down the material speed of advancing rapidly through a plurality of independent fan-shaped passageways, effectively gets rid of the inside crystal water of material. The dried material advances to a cooling area at the tail end of the drying cylinder 8, is quickly cooled, is pushed out by a double-shaft screw conveyor 14 arranged at the lower end of the dust collection tail cover 9, and enters a finished product manufacturing link (a grass ball machine, a briquetting machine, a square packing machine and the like) or enters a storehouse for centralized storage.
Under the action of negative pressure of the system, the tail exhaust gas doped with material debris is subjected to secondary speed reduction through the exhaust port at the top end of the dust collection tail cover 9, the material with larger specific gravity naturally sinks to the double-shaft screw conveyor 14 to be discharged, a few lighter materials continue to move upwards and are intercepted by the filter screen 29 arranged at the upper end of the exhaust port, and the filtered gas enters a subsequent dust removal device for purification treatment and then is discharged into the atmosphere. When the resistance value of the filter screen reaches a set value, the induction probe 30 excites the air cannon to work through the controller, and the filter screen is intermittently cleaned, so that the smoothness of the negative pressure of the system is ensured.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The utility model provides a drying device of high moisture, ultralow proportion material, includes heat source and the rotatable drying cylinder of slope arrangement, characterized by: the heat source outlet is connected with a feeding barrel, and the outlet of the feeding barrel is in sealed splicing with the inlet of the drying barrel;
a positive pressure air conveying device and a material inlet are arranged at one end of the material inlet barrel, which is close to the outlet of the material inlet barrel, and a blowing pipe of the positive pressure air conveying device is inserted into the lower part of the material inlet and is used for blowing materials into the drying barrel through air pressure;
the inner cavity of the drying cylinder is sequentially provided with a spiral material guiding area, a lifting material raising area, a multi-channel buffer area and a cooling area from front to back; the multichannel buffer zone comprises a plurality of partition plates which are uniformly distributed on the inner wall of the drying cylinder along the circumferential direction, the partition plates are respectively arranged along the radial direction of the drying cylinder, and arc-shaped spring plates are respectively connected between the inner ends of two adjacent partition plates and are used for forming a plurality of independent fan-shaped channels;
a dust collection tail cover is arranged at one end of an outlet of the drying cylinder, and the outlet of the drying cylinder is in sealed splicing with an inlet of the dust collection tail cover; used for recovering and discharging the dried materials.
2. The apparatus for drying materials with high moisture and ultra-low specific gravity as claimed in claim 1, wherein: and a small lifting plate is fixed on each of the two sides of each partition plate, is vertically arranged with the partition plates, and is staggered with two adjacent small lifting plates for stirring materials entering the fan-shaped channel.
3. The apparatus for drying materials with high moisture and ultra-low specific gravity as claimed in claim 1, wherein: the lifting material lifting area is formed by lifting material plates which are uniformly distributed and fixed on the inner wall of the drying cylinder along the circumferential direction, and the lifting material plates are arranged in multiple sections along the axial direction of the drying cylinder and are mutually staggered and used for lifting materials to the upper part in the drying cylinder and then enabling the materials to naturally fall.
4. The apparatus for drying materials with high moisture and ultra-low specific gravity as claimed in claim 1, wherein: the positive pressure air conveying device comprises an air blower which is arranged on the charging barrel through a support, the outlet of the air blower is connected with a homogenizing air bag, the homogenizing air bag is cylindrical, the two ends of the homogenizing air bag are closed, and the middle part of the outer edge of one side of the homogenizing air bag is provided with a conical air inlet which is connected with the outlet of the air blower; the bottom of the outer edge of the homogenizing air bag is uniformly connected with a plurality of air blowing pipes; the homogenizing air bag is internally provided with a homogenizing pore plate, and the homogenizing pore plate is provided with a plurality of small pores for homogenizing and dispersing the air flow.
5. The drying device for the materials with high moisture and ultra-low specific gravity as claimed in claim 1 or 4, which is characterized in that: an arc-shaped supporting plate is arranged below the lower part in the feeding barrel corresponding to the feeding port and is inserted into the drying barrel, so that the materials with larger specific gravity fall on the supporting plate and naturally slide into the drying barrel, and the problem that the materials with larger specific gravity cannot be blown in place is solved.
6. The apparatus for drying materials with high moisture and ultra-low specific gravity as claimed in claim 1, wherein: the device comprises a feeding barrel, a first reversing valve, a second reversing valve, a tube type heat exchanger, a heat exchange medium inlet, a second reversing valve, a cyclone separator and a hot air outlet.
7. The apparatus for drying materials with high moisture and ultra-low specific gravity as claimed in claim 1, wherein: a discharge port at the lower end of the dust collection tail cover is connected with a double-shaft screw conveyor through a flashboard valve and used for discharging dried materials; the air outlet at the upper end of the dust collection tail cover is connected with a negative pressure induced draft fan through a dust removal device and is used for purifying exhausted gas and then exhausting the purified gas into the atmosphere.
8. The apparatus for drying high moisture, ultra-low specific gravity material according to claim 1 or 7, wherein: a filter screen is arranged at an air outlet at the upper end of the dust collection tail cover and is used for intercepting materials with smaller specific gravity; an induction probe and an air cannon are respectively arranged on the elbow connected with the exhaust port at the upper end of the dust collection tail cover and above the corresponding filter screen, the induction probe is electrically connected with the air cannon through a controller and used for exciting the air cannon to work to intermittently clean the filter screen when the resistance value of the filter screen reaches a set value.
9. The apparatus for drying high moisture, ultra low specific gravity material as claimed in claim 7, wherein: the dust removal device is formed by sequentially connecting a cyclone dust collector and a bag-type dust collector, an air inlet of the cyclone dust collector is communicated with an air outlet at the upper end of the dust collection tail cover, and an air outlet of the bag-type dust collector is connected with the negative-pressure draught fan.
10. The apparatus for drying materials with high moisture and ultra-low specific gravity as claimed in claim 1, wherein: the heat source is a biomass fluidized bed furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111216433.7A CN113915974A (en) | 2021-10-19 | 2021-10-19 | Drying device for high-moisture and ultralow-specific gravity materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111216433.7A CN113915974A (en) | 2021-10-19 | 2021-10-19 | Drying device for high-moisture and ultralow-specific gravity materials |
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| CN113915974A true CN113915974A (en) | 2022-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111216433.7A Pending CN113915974A (en) | 2021-10-19 | 2021-10-19 | Drying device for high-moisture and ultralow-specific gravity materials |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115654874A (en) * | 2022-11-09 | 2023-01-31 | 山东华燚工程技术有限公司 | Lithium hydroxide rotary drying equipment and rotary drying system |
| CN117685767A (en) * | 2024-02-01 | 2024-03-12 | 中建环能科技股份有限公司 | Tube type heat exchange device |
-
2021
- 2021-10-19 CN CN202111216433.7A patent/CN113915974A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115654874A (en) * | 2022-11-09 | 2023-01-31 | 山东华燚工程技术有限公司 | Lithium hydroxide rotary drying equipment and rotary drying system |
| CN115654874B (en) * | 2022-11-09 | 2023-12-01 | 山东华燚工程技术有限公司 | Lithium hydroxide rotary drying equipment and rotary drying system |
| CN117685767A (en) * | 2024-02-01 | 2024-03-12 | 中建环能科技股份有限公司 | Tube type heat exchange device |
| CN117685767B (en) * | 2024-02-01 | 2024-04-19 | 中建环能科技股份有限公司 | Tube type heat exchange device |
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