Multi-layer structure of drying equipment

Abstract

The utility model discloses a multilayer structure of drying equipment, which belongs to the field of drying equipment and comprises a plurality of groups of coal and gas distribution components, the coal and gas distribution components are longitudinally and fixedly mounted on a box body of the drying equipment, and each coal and gas distribution component consists of a rectangular pipeline, a second coal distribution conical plate, a connecting pipeline and a blocking protective net, the multiple layers of coal and gas distribution assemblies are arranged on the drying equipment box body, the multiple layers of coal and gas distribution assemblies are connected with the hot air unit, the multiple layers of coal and gas distribution assemblies are arranged on the drying equipment box body, the multiple layers of coal and gas distribution assemblies are connected with the hot air unit, and the multiple layers of coal and gas distribution assemblies are arranged in the drying equipment box body. According to the coal and gas distribution assembly, hot air can be evenly distributed in the drying equipment box body, meanwhile, coal powder entering the drying equipment box body can be evenly distributed through the coal and gas distribution assembly, and therefore the coal powder can make even contact with the hot air, and the probability that the drying effect of the coal powder is not consistent in the drying process is reduced.

Description

Technical Field

[0001] The utility model relates to the field of drying equipment, in particular to a multi-layer structure of drying equipment. Background Art

[0002] Coal powder drying is an important industrial process aimed at removing moisture in coal powder, improving its calorific value and combustion efficiency. The moisture content in coal powder is inversely proportional to its calorific value. By drying to reduce the moisture content, the calorific value of coal powder can be significantly increased. The density of the dried coal powder increases, the particle size is uniform, and it is easier to mix with air, thus improving the combustion efficiency and stability. The volume and mass density of the dried coal powder increase, reducing the requirements for transportation and storage space and lowering related costs. The soot generated during the combustion of dried coal powder decreases, contributing to reducing environmental pollution. There are various methods for drying coal powder, commonly including hot air drying, vacuum drying, microwave drying, etc. Among them, hot air drying is widely used due to its fast heat transfer and high efficiency. When traditional drying equipment dries coal powder, there are often situations of uneven hot air distribution and uneven coal powder distribution. Uneven hot air distribution and uneven coal powder distribution will directly lead to inconsistent drying effects of coal powder. That is, some coal powder may be over-dried because it is more dispersed and subjected to a higher hot air temperature, while another part of the coal powder may be under-dried because it is more concentrated and lacks hot air. This uneven drying effect will affect the final quality of the coal powder. At this time, the over-dried coal powder may lose some activity or undergo other adverse changes, while the coal powder that is not dried in place may not meet the requirements of subsequent processes. Therefore, a multi-layer structure of drying equipment is needed to solve the above problems. Summary of the Utility Model

[0003] The main purpose of the utility model is to provide a multi-layer structure of drying equipment, which can effectively solve the problems in the background art.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A multi-layer structure of drying equipment includes a coal and gas distribution component. There are multiple groups of the coal and gas distribution components, which are longitudinally and fixedly installed on the drying equipment box body. The coal and gas distribution component consists of a rectangular pipeline, a second coal distribution cone plate, a connecting pipeline, and a blocking protection net. There are several second coal distribution cone plates, all of which are located inside the rectangular pipeline. There are several connecting pipelines. Adjacent two second coal distribution cone plates are connected together through the connecting pipeline. The second coal distribution cone plate close to the rectangular pipeline is connected to the rectangular pipeline through the connecting pipeline. There are several blocking protection nets, which are respectively fixedly installed on the inner walls of several second coal distribution cone plates. The coal and gas distribution component is connected to a hot air generator set arranged outside the drying equipment box body.

[0006] Preferably, a feed inlet is fixedly installed at the upper end of the drying equipment box body, and a discharge outlet is fixedly installed at the lower end of the drying equipment box body.

[0007] Preferably, an installation connecting rod is fixedly installed on the inner wall of the drying equipment box body, and a first coal distribution conical plate is fixedly installed on the installation connecting rod, and the first coal distribution conical plate is located directly below the feed inlet.

[0008] Preferably, the hot air unit is composed of a hot air device, a main pipeline and a shunt pipeline. The main pipeline is fixedly installed on the hot air device, and there are several shunt pipelines which are all fixedly installed on the main pipeline.

[0009] Preferably, the coal and gas distribution assembly is located below the installation connecting rod and the first coal distribution conical plate.

[0010] Preferably, the second coal distribution conical plate and the blocking protection net on the coal and gas distribution assembly are both located inside the drying equipment box body. The rectangular pipeline is sleeved outside the drying equipment box body. The connecting pipeline connecting the second coal distribution conical plate and the rectangular pipeline passes through the wall of the drying equipment box body, and the connecting pipeline is fixedly connected to the drying equipment box body. The connecting pipeline passes through the wall of the second coal distribution conical plate, and the connecting pipeline is fixedly connected to the second coal distribution conical plate. The rectangular pipeline is fixedly connected to the shunt pipeline.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] By arranging multiple layers of coal and gas distribution assemblies on the drying equipment box body and connecting the coal and gas distribution assemblies with the hot air unit at the same time, the coal and gas distribution assemblies can evenly distribute the hot air in the drying equipment box body. At the same time, the coal and gas distribution assemblies can also evenly distribute the pulverized coal entering the drying equipment box body, so that the pulverized coal can evenly contact with the hot air, thereby reducing the probability of inconsistent drying effect during the drying process of the pulverized coal, and finally ensuring that the dried pulverized coal has good quality and enabling the pulverized coal to meet the subsequent process requirements. At the same time, when the hot air enters the drying equipment box body through the connecting pipeline and the second coal distribution conical plate, it can heat the connecting pipeline and the second coal distribution conical plate. Therefore, the heated connecting pipeline and the second coal distribution conical plate can disperse the pulverized coal and dry the pulverized coal in contact with them at the same time, thereby improving the drying efficiency of the pulverized coal. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 is a schematic diagram of the coal and gas distribution assembly, the drying equipment box body, the hot air unit, the first coal distribution conical plate and the installation connecting rod of the utility model;

[0015] Figure 3 Structural schematic diagram of the coal and gas distributing component and the hot air unit of the present utility model;

[0016] Figure 4 Structural schematic diagram after the second coal distributing cone plate and the blocking protection net on the coal and gas distributing component of the present utility model are disassembled.

[0017] In the figure: 1. Coal and gas distributing component; 2. Drying equipment box body; 3. Hot air unit; 4. Feed inlet; 5. Discharge outlet; 6. First coal distributing cone plate; 7. Installation connecting rod; 8. Hot air equipment; 9. Main pipeline; 10. Shunt pipeline; 11. Rectangular pipeline; 12. Second coal distributing cone plate; 13. Connecting pipeline; 14. Blocking protection net. Specific embodiments

[0018] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4As shown in the figure, the drying equipment has a multi-layer structure, including a coal and gas distribution component 1. There are multiple groups of the coal and gas distribution component 1, which are longitudinally and fixedly installed on the drying equipment box body 2. The upper end of the drying equipment box body 2 is fixedly installed with a feed inlet 4, and the lower end of the drying equipment box body 2 is fixedly installed with a discharge outlet 5. An installation connecting rod 7 is fixedly installed on the inner wall of the drying equipment box body 2, and a first coal distribution cone plate 6 is fixedly installed on the installation connecting rod 7, and the first coal distribution cone plate 6 is located directly below the feed inlet 4. The hot air fan group 3 is composed of a hot air equipment 8, a main pipeline 9 and a shunt pipeline 10. The main pipeline 9 is fixedly installed on the hot air equipment 8. There are several shunt pipelines 10, and all of them are fixedly installed on the main pipeline 9. The coal and gas distribution component 1 is composed of a rectangular pipeline 11, a second coal distribution cone plate 12, a connecting pipeline 13 and a blocking protection net 14. There are several second coal distribution cone plates 12, and all of them are located in the rectangular pipeline 11. There are several connecting pipelines 13. Two adjacent second coal distribution cone plates 12 are connected together through the connecting pipeline 13. The second coal distribution cone plate 12 close to the rectangular pipeline 11 is connected to the rectangular pipeline 11 through the connecting pipeline 13. There are several blocking protection nets 14, and they are respectively fixedly installed on the inner walls of several second coal distribution cone plates 12. The coal and gas distribution component 1 is connected to the hot air fan group 3 arranged outside the drying equipment box body 2. When drying pulverized coal, the pulverized coal can be put into the drying equipment box body 2 through the feed inlet 4. Under the action of gravity, the pulverized coal will fall on the first coal distribution cone plate 6 and the installation connecting rod 7. Thus, under the action of this impact force, the first coal distribution cone plate 6 and the installation connecting rod 7 will disperse the pulverized coal for the first time. Then the pulverized coal will continue to fall, so the pulverized coal will impact the second coal distribution cone plate 12 and the connecting pipeline 13. Thus, under the action of this impact force, the second coal distribution cone plate 12 and the connecting pipeline 13 will disperse the pulverized coal for the second time, and further make the pulverized coal evenly distributed in the drying equipment box body 2. At the same time, the hot air fan group 3 connected to the coal and gas distribution component 1 can be started. At this time, the hot air equipment 8 will send the heated air into the coal and gas distribution component 1 through the main pipeline 9 and the shunt pipeline 10 in sequence. Then the heated air will enter the second coal distribution cone plate 12 through the rectangular pipeline 11 and the connecting pipeline 13. Finally, the heated air will pass through the mesh holes of the blocking protection net 14. At this time, the heated air is evenly distributed in the drying equipment box body 2 by the coal and gas distribution component 1. Thus, the evenly distributed pulverized coal will contact the evenly distributed hot air, and further the pulverized coal will be evenly dried by the hot air. Finally, the dried pulverized coal will fall out from the discharge outlet 5. By setting multiple layers of coal and gas distribution components 1 on the drying equipment box body 2 and connecting the coal and gas distribution component 1 to the hot air fan group 3 at the same time, the coal and gas distribution component 1 can evenly distribute the hot air in the drying equipment box body 2. At the same time, the coal and gas distribution component 1 can also evenly distribute the pulverized coal entering the drying equipment box body 2, so that the pulverized coal can evenly contact the hot air, and further reduce the probability of inconsistent drying effect during the drying process of the pulverized coal, and finally ensure that the dried pulverized coal has good quality, so that the pulverized coal can meet the subsequent process requirements. At the same time,When the hot air enters the drying equipment box body 2 through the connecting pipe 13 and the second coal distribution conical plate 12, it can heat the connecting pipe 13 and the second coal distribution conical plate 12. Thus, the heated connecting pipe 13 and the second coal distribution conical plate 12 can not only disperse the pulverized coal, but also dry the pulverized coal in contact with them, thereby improving the drying efficiency of the pulverized coal.

[0020] Further, the coal distribution and gas distribution assembly 1 is located below the installation connecting rod 7 and the first coal distribution conical plate 6. The second coal distribution conical plate 12 and the blocking protection net 14 on the coal distribution and gas distribution assembly 1 are both located inside the drying equipment box body 2. The rectangular pipe 11 is sleeved on the outer side of the drying equipment box body 2. The connecting pipe 13 connecting the second coal distribution conical plate 12 and the rectangular pipe 11 passes through the wall of the drying equipment box body 2, and the connecting pipe 13 is fixedly connected to the drying equipment box body 2. The connecting pipe 13 passes through the wall of the second coal distribution conical plate 12, and the connecting pipe 13 is fixedly connected to the second coal distribution conical plate 12. The rectangular pipe 11 is fixedly connected to the shunt pipe 10. The second coal distribution conical plate 12 with an inclined outer surface can effectively disperse the pulverized coal falling on it. When the heated air passes through the connecting pipe 13 and the second coal distribution conical plate 12, the heat will be transferred to the connecting pipe 13 and the second coal distribution conical plate 12. At this time, the connecting pipe 13 and the second coal distribution conical plate 12 with a certain temperature have a certain drying effect. Thus, when the pulverized coal contacts the connecting pipe 13 and the second coal distribution conical plate 12, the connecting pipe 13 and the second coal distribution conical plate 12 with a certain temperature can dry the pulverized coal.

[0021] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. The protection scope claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. The drying equipment has a multi-layer structure, characterized by: The invention comprises a coal distribution and gas distribution component (1), wherein the coal distribution and gas distribution component (1) has a plurality of groups and is longitudinally fixedly mounted on a drying equipment housing (2), the coal distribution and gas distribution component (1) is composed of a rectangular pipe (11), a second coal distribution cone plate (12), a connecting pipe (13) and a blocking protection net (14), wherein a plurality of second coal distribution cone plates (12) are arranged inside the rectangular pipe (11), the connecting pipe (13) is arranged in a plurality of adjacent second coal distribution cone plates (12) are connected together via the connecting pipe (13), the second coal distribution cone plate (12) close to the rectangular pipe (11) is connected to the rectangular pipe (11) via the connecting pipe (13), the blocking protection net (14) is arranged in a plurality of groups and is respectively fixedly mounted on the inner walls of the plurality of second coal distribution cone plates (12), and the coal distribution and gas distribution component (1) is connected to a hot air unit (3) arranged outside the drying equipment housing (2).

2. The multi-layer structure of the drying equipment according to claim 1, characterized in that: A material inlet (4) is fixedly mounted on the upper end of the drying equipment housing (2), and a material outlet (5) is fixedly mounted on the lower end of the drying equipment housing (2).

3. The multi-layer structure of the drying equipment according to claim 2 is characterized in that: A mounting connecting rod (7) is fixedly mounted on the inner wall of the drying equipment box (2), a first coal distribution cone plate (6) is fixedly mounted on the mounting connecting rod (7), and the first coal distribution cone plate (6) is located directly below the feed port (4).

4. The multi-layer structure of the drying equipment according to claim 3 is characterized in that: The hot air unit (3) is composed of a hot air device (8), a main pipeline (9) and a branch pipeline (10); the main pipeline (9) is fixedly mounted on the hot air device (8); and there are a plurality of branch pipelines (10) which are all fixedly mounted on the main pipeline (9).

5. The multi-layer structure of the drying equipment according to claim 4, characterized in that: The coal and gas distribution assembly (1) is located below the mounting connecting rod (7) and the first coal distribution cone plate (6).

6. The multi-layer structure of the drying equipment according to claim 5, characterized in that: The second coal distribution cone plate (12) and the blocking protection net (14) on the coal distribution and gas distribution assembly (1) are both located inside the drying equipment box (2); the rectangular pipe (11) is sleeved on the outside of the drying equipment box (2); a connecting pipe (13) connecting the second coal distribution cone plate (12) and the rectangular pipe (11) passes through the wall of the drying equipment box (2); the connecting pipe (13) is fixedly connected to the drying equipment box (2); the connecting pipe (13) passes through the wall of the second coal distribution cone plate (12); the connecting pipe (13) is fixedly connected to the second coal distribution cone plate (12); and the rectangular pipe (11) is fixedly connected to the diversion pipe (10).

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