Wind Permeation-Type Dryer Capable of Scraping Material

Abstract

A wind permeation-type dryer capable of scraping material has a cavity and includes a heating assembly. The experiment cavity and a dropping cavity; the experiment cavity is located above the dropping cavity. The heating assembly communicates with the experiment cavity or the dropping cavity. The cavity is provided with a sieve tray assembly therein for placing materials. The assembly is provided with a rotating scraping assembly provided thereabove for scraping and flattening the materials on the sieve tray assembly. The rotating scraping assembly includes a rotating drive piece, a scraping sheet, and a rotating rod, wherein one end of the rotating rod is connected to the rotating drive piece and the other end of the rotating rod is connected to the scraping sheet adjacent to the sieve tray assembly. The rotating drive piece drives the rotating rod to rotate so as to drive the scraping sheet to rotate together therewith, such that the materials contacting the scraping sheet is scraped and flattened. The device has an automatic sample flattening function, ensuring the uniformity of sample drying and increasing a working efficiency.

Claims

1. A wind permeation-type dryer capable of scraping material, having a cavity which has a dropping cavity and an experiment cavity provided above said dropping cavity, comprising a heating assembly communicated with said experiment cavity or said dropping cavity, a sieve tray assembly disposed in said cavity, and a rotating scraping assembly provided above said sieve tray assembly for scrap and flattening materials on said sieve tray assembly, wherein said rotating scraping assembly comprises a rotating drive piece, a scraping sheet, and a rotating rod, wherein one end of said rotating rod is connected to said rotating drive piece and an other end of said rotating rod is connected to said scraping sheet which is adjacent to said sieve tray assembly, wherein when said rotating drive piece drives said rotating rod to rotate so as to drive said scraping sheet to rotate together therewith, said materials contacting said scraping sheet are flattened and scraped, further comprising an elevator assembly for driving said rotating scraping assembly to move up and down, wherein said elevator assembly comprises an elevator drive assembly, an elevator transmission assembly, and a connecting sheet, wherein said elevator drive assembly is connected to one end of said connecting sheet through said elevator transmission assembly to move up and down, and another end of said connecting sheet is connected to said rotating scraping assembly.

2. The wind permeation-type dryer, as recited in claim 1, wherein said rotating drive piece is a rotating motor, wherein said end of said rotating rod is connected to said rotating motor and said other end of said rotating rod is connected to said scraping sheet.

3. (canceled)

4. The wind permeation-type dryer, as recited in claim 1, wherein said elevator assembly is mounted on a top panel of said experiment cavity through a rack, wherein said elevator drive assembly comprises an elevator motor, wherein said elevator transmission assembly comprises a screw assembly, wherein said screw assembly is matched with said elevator motor to move up and down together, and drives said rotating scraping assembly to move up and down through said connecting sheet.

5. The wind permeation-type dryer, as recited in claim 4, wherein an end of said scraping sheet, which is adjacent to said sieve tray assembly, has any one shape of a line shape, a slant line shape, and a dentate shape.

6. The wind permeation-type dryer, as recited in claim 4, wherein a silicon sheet is provided on an end of said scraping sheet which is adjacent to a side wall of said experiment cavity.

7. The wind permeation-type dryer, as recited in claim 5, wherein a feeding opening is provided on a side wall of said experiment cavity, wherein a valve assembly is provided on said feeding opening.

8. The wind permeation-type dryer, as recited in claim 7, wherein a fan is disposed on said dropping cavity for exhausting air out of said dropping cavity for ventilation.

9. (canceled)

10. The wind permeation-type dryer, as recited in claim 2, wherein said elevator assembly is mounted on a top panel of said experiment cavity through a rack, wherein said elevator drive assembly comprises an elevator motor, wherein said elevator transmission assembly comprises a screw assembly, wherein said screw assembly is matched with said elevator motor to move up and down together, and drives said rotating scraping assembly to move up and down through said connecting sheet.

11. The wind permeation-type dryer, as recited in claim 10, wherein an end of said scraping sheet, which is adjacent to said sieve tray assembly, has any one shape of a line shape, a slant line shape, and a dentate shape.

12. The wind permeation-type dryer, as recited in claim 10, wherein a silicon sheet is provided on an end of said scraping sheet which is adjacent to a side wall of said experiment cavity.

13. The wind permeation-type dryer, as recited in claim 11, wherein a feeding opening is provided on a side wall of said experiment cavity, wherein a valve assembly is provided on said feeding opening.

14. The wind permeation-type dryer, as recited in claim 13, wherein a fan is disposed on said dropping cavity for exhausting air out of said dropping cavity for ventilation.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0025] FIG. 1 is a structural schematic view of a wind permeation-type dryer capable of scraping material according to a preferred embodiment of the present invention.

[0026] FIG. 2 is a perspective view of a wind permeation-type dryer capable of scraping material according to the above-preferred embodiment of the present invention.

[0027] FIG. 3 is a structural schematic view of a rotating scraping assembly and an elevator assembly according to the above-preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

[0028] The following description is disclosed to enable any person skilled in the art to make and use the present invention. Preferred embodiments are provided in the following description only as examples and modifications will be apparent to those skilled in the art. The general principles defined in the following description would be applied to other embodiments, alternatives, modifications, equivalents, and applications without departing from the spirit and scope of the present invention.

[0029] As shown in FIG. 1 and FIG. 2, a wind permeation-type dryer capable of scraping material according to a preferred embodiment of the present invention is illustrated, wherein the wind permeation-type dryer capable of scraping material has a cavity which has an experiment cavity 1 and a dropping cavity 2. The cavity 1 is provided above the dropping cavity 2. The wind permeation-type dryer comprises a heating assembly 3 communicated with the experiment cavity 1 or the dropping cavity 2, a sieve tray assembly 4 provided in the cavity for containing materials, and a rotating scraping assembly 5 provided above the sieve tray assembly 4 for scraping and flattening the materials on the sieve tray assembly 4. The scraping assembly 5 comprises a rotating drive piece 51, a rotating rod 52, and a scraping sheet 53, wherein one end of the rotating rod 52 is connected to the rotating drive piece 51 and the other end of the rotating rod 52 is connected to the scraping sheet 53 which is adjacent to the sieve tray assembly 4, wherein when the rotating drive piece 51 drives the rotating rod 52 to rotate so as to drive the scraping sheet 53 to rotate together therewith, the materials contacting the scraping sheet 53 are scraped and flattened.

[0030] In order to evenly flatten the materials when the materials are disorderly piled on the sieve tray assembly 4, the rotating drive piece 51 drives the rotating rod 52 to rotate, and at the same time drives the scraping sheet 53 to rotate together so as to scrap and flatten the materials through the scraping sheet 53. When hot air blows through the materials, the materials are guarantee to be dried evenly having been scraped and flattened, so as to improve working efficiency. According to the present embodiment, the rotating drive piece 51 is a rotating motor 511, wherein one end of the rotating rod 52 is connected to the rotating motor 511 and the other end of the rotating rod 52 is connected to the scraping sheet 53.

[0031] According to another embodiment of the present invention, the wind permeation-type dryer capable of scraping material further comprises an elevator assembly 6 for an up and-down movement, wherein the elevator assembly 6 comprises an elevator drive assembly 61, an elevator transmission assembly 62, and a connecting sheet 63, wherein the elevator drive assembly 61 is connected to one end of the connecting sheet 63 through the elevator transmission assembly 62 so as to move up and down, and the other end of the connecting sheet 63 is connected to the rotating scraping assembly 5.

[0032] According to another embodiment of the present invention, the elevator assembly 6 of the wind permeation-type dryer capable of scraping material is mounted on a top panel of the experiment cavity 1 through a rack, wherein the elevator drive assembly 61 comprises an elevator motor 611. The elevator transmission assembly 62 comprises a screw assembly 621, wherein the screw assembly 621 is matched with the elevator motor 611 to move up and down together and drives the rotating scraping assembly 5 to move up and down through the connecting sheet 63.

[0033] The process of reducing the moisture of the samples is a process of mass transfer. A flowing air gradually takes the moisture of the samples away. The process of reducing the moisture comprises of two stages. A first stage is changing the moisture on the surface of the materials from a liquid phase to a vapor phase; a second stage is evaporating the water steam from the surface of the materials, and the flowing air taking away the permeated air on the surface of the material. The two stages are related to the surrounding temperature of the materials, wherein the evaporation on the surface of the materials and the quantity of the moisture which the surrounding air can absorb into are presented a function with the temperature, such that as the temperature increases, the evaporated rate is faster and the quantity of air can absorb larger quantity of moisture. However, the temperature can influence the physical and chemical properties of the coal samples if it reaches a certain level. The international standards regulate that the temperature cannot be above 40 C. The national standards regulate that the temperature cannot be above 50 C. The present invention adopts a method that reduces the moisture by blowing air through the coal samples, effectively expands the evaporation area of the materials and improves the efficiency several to a dozen times.

[0034] Meanwhile, in order to improve the efficiency, the wind permeation-type dryer capable of scraping material further comprises a rotating scraping assembly 5 provided above the sieve tray assembly 4 for flattening and scraping the materials on the sieve tray assembly 4, wherein the materials are rotated and flattened so as to guarantee the materials are dried evenly, that improves the efficiency and reduces the labor intensity of operators. The wind permeation-type dryer capable of scraping material further through the disposition of the elevator assembly 6, which drives the movement of the rotating scraping assembly 5, not only can achieve up and-down movement and rotation movement at the same time, but also respectively achieve up and-down movement and rotation movement, so that the materials are scraped and flattened more evenly. Thus, the level of the automation is improved, the process of reducing the moisture of the materials is shortened, the accuracy and the integrity of the materials are enhanced, the energy consumption of the equipment is lowered, and the service time of the equipment is prolonged.

[0035] According to another embodiment of the present invention, an end of the scraping sheet 53, which is adjacent to the sieve tray assembly 4, has a line shape. In any one of other embodiments, an end of the scraping sheet 53 can have a slant line shape or a dentate shape.

[0036] According to another embodiment of the present invention, a silicon sheet is provided on the scraping sheet 53, which is adjacent to a side wall of the experiment cavity 1, so as to enlarge the scraping area, wherein the silicon is deformed to avoid a scratch between the scraping sheet 53 and a bottom cavity in the event that the bottom cavity is not round enough.

[0037] According to another embodiment of the present invention, a side wall of the experiment cavity 1 has a feeding opening 7 provided thereon, wherein a valve assembly 8 is provided on the feeding opening 7.

[0038] According to another embodiment of the present invention, the dropping cavity 2 comprises a fan 9 disposed thereon for exhausting the air out of the dropping cavity 2 timely for ventilation to avoid forming a condensation on an inner surface of the dropping cavity 2.

[0039] One skilled in the art will understand that the embodiment of the present invention as shown in the drawings and described above is exemplary only and not intended to be limiting.

[0040] It will thus be seen that the objects of the present invention have been fully and effectively accomplished. The embodiments have been shown and described for the purposes of illustrating the functional and structural principles of the present invention and is subject to change without departure from such principles. Therefore, this invention includes all modifications encompassed within the spirit and scope of the following claims.