Centralized dehydration structure at top of drying equipment

Abstract

The utility model discloses a centralized dewatering structure at the top of drying equipment, which belongs to the field of drying equipment and comprises a top drying component fixedly mounted on the upper side wall of a box of the drying equipment and composed of a mounting frame, a top bin, an air inlet pipeline, a diversion pipeline and a main pipeline. The two top bin bodies are symmetrically and fixedly installed on the installation frame, the multiple air inlet pipelines are fixedly installed on the upper side wall bodies of the two top bin bodies correspondingly, the multiple flow dividing pipelines are fixedly installed on the multiple air inlet pipelines correspondingly, and the multiple flow dividing pipelines are connected together in series through the main pipeline. An air distribution assembly is fixedly installed on the inner wall of the top bin body, and by arranging the top drying assembly and the air distribution assembly, hot air can be evenly distributed, so that the probability that the drying effect of pulverized coal is inconsistent in the drying process is reduced, and then it is guaranteed that the dried pulverized coal has good quality; and finally, the pulverized coal can meet the subsequent process requirements.

Description

Technical Field

[0001] The utility model relates to the field of drying equipment, in particular to a centralized dehydration structure on the top of the drying equipment. Background Art

[0002] Pulverized coal drying is an important industrial process designed to remove moisture from pulverized coal and increase its calorific value and combustion efficiency. The moisture content in pulverized coal is inversely proportional to its calorific value. Reducing the moisture content by drying can significantly increase the calorific value of the pulverized coal. The density of the dried pulverized coal increases, the particle size becomes more uniform, and it is easier to mix with air, thereby improving combustion efficiency and stability. The volume and mass density of dried pulverized coal increase, reducing the need for transportation and storage space and lowering related costs. Dry pulverized coal produces less smoke during combustion, which helps reduce environmental pollution. There are many methods for drying pulverized coal, and the most commonly used methods include hot air drying, vacuum drying, and microwave drying. Among them, hot air drying is widely used due to its fast heat transfer and high efficiency. When traditional drying equipment is drying coal powder, uneven hot air distribution often occurs, and the uneven hot air distribution will directly lead to inconsistent coal powder drying effects. Some coal powder may be over-dried due to the high hot air temperature, while other parts may be under-dried due to insufficient 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 of its activity or produce other adverse changes, while the under-dried coal powder may not meet the requirements of subsequent processes. Therefore, a centralized dehydration structure on the top of the drying equipment is required to solve the above problems. Utility Model Content

[0003] The main purpose of the utility model is to provide a centralized dehydration structure at the top of a drying device, which can effectively solve the problems in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] The centralized dehydration structure at the top of the drying equipment includes a top drying component, which is fixedly mounted on the upper side wall of the drying equipment box. The top drying component consists of a mounting frame, a top warehouse body, an air inlet duct, a diversion duct and a main duct. There are two top warehouse bodies that are symmetrically fixed on the mounting frame. There are several air inlet ducts that are respectively fixedly mounted on the upper side walls of the two top warehouse bodies. There are several diversion ducts that are respectively fixedly mounted on several air inlet ducts. The main duct connects several diversion ducts in series. An air distribution component is fixedly mounted on the inner wall of the top warehouse body. The air distribution component consists of a mounting base, a conical duct and a blocking protective net. There are several conical ducts that are all fixedly inserted on the mounting base. There are several blocking protective nets that are respectively fixedly mounted on the inner walls of several conical ducts.

[0006] Preferably, a feed port structure is fixedly installed at the upper end of the drying equipment box and between the two top bins, and a discharge port structure is fixedly installed at the lower end of the drying equipment box.

[0007] Preferably, the top storage body on the top drying assembly is fixedly connected to the drying equipment box, and the main pipeline can be connected to the hot air supply system.

[0008] Preferably, the main pipeline and the branch pipeline on the top drying component are fixedly connected.

[0009] Preferably, the mounting base plate on the air distribution assembly is fixedly connected to the inner wall of the top bin body.

[0010] Preferably, the tapered pipe on the air distribution assembly is an inverted tapered structure with a larger diameter at the upper end and a smaller diameter at the lower end.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] By setting up a top drying component and an air distribution component, the hot air can be evenly distributed, thereby reducing the probability of inconsistent drying effects of the coal powder during the drying process, thereby ensuring that the dried coal powder has good quality, and ultimately the coal powder can meet the subsequent process requirements; at the same time, the top drying component is connected to the hot air supply system, and the hot air supply system and the top drying component can control the wind pressure in the drying equipment box. By controlling the wind pressure, the residence time and flow path of the coal powder in the drying equipment box can be adjusted to optimize the dehydration effect. When the wind pressure increases, the air flow speed is accelerated, which increases the air convection heat transfer coefficient on the surface of the coal powder, making the moisture on the surface of the coal powder easier to evaporate, and the high wind pressure can also bring a lower relative humidity environment, further promoting the evaporation of moisture. At the same time, the wind pressure and temperature work synergistically, and the high wind pressure can promote the penetration and distribution of hot air in the coal powder, thereby improving the overall drying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0014] Figure 2 This is a schematic structural diagram of the top drying component of the present invention;

[0015] Figure 3 This is a schematic structural diagram of the top drying component and the air distribution component of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the top drying component and the air distribution component after being separated.

[0017] In the figure: 1. Top drying component; 2. Drying equipment box; 3. Feed port structure; 4. Discharge port structure; 5. Installation frame; 6. Top silo; 7. Air inlet duct; 8. Diversion duct; 9. Main duct; 10. Air distribution component; 11. Installation base plate; 12. Conical duct; 13. Blocking protective net. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4As shown, the centralized dehydration structure at the top of the drying equipment includes a top drying component 1, which is fixedly mounted on the upper side wall of the drying equipment box 2. A feed port structure 3 is fixedly mounted at the upper end of the drying equipment box 2 and between the two top silos 6. A discharge port structure 4 is fixedly mounted at the lower end of the drying equipment box 2. The top drying component 1 consists of a mounting frame 5, a top silo 6, an air inlet duct 7, a diversion duct 8 and a main duct 9. There are two top silos 6 and they are symmetrically fixed on the mounting frame 5. There are several air inlet ducts 7 and they are respectively fixed on the upper side walls of the two top silos 6. There are several diversion ducts 8 and they are respectively fixed It is fixedly installed on several air inlet pipes 7, and the main pipe 9 connects several branch pipes 8 in series. An air distribution component 10 is fixedly installed on the inner wall of the top warehouse body 6. The air distribution component 10 is composed of a mounting base 11, a tapered pipe 12 and a blocking protective net 13. There are several tapered pipes 12 and they are all fixedly inserted on the mounting base 11. There are several blocking protective nets 13 and they are respectively fixedly installed on the inner walls of several tapered pipes 12. When drying coal powder, the coal powder can be put into the drying equipment box 2 through the feed port structure 3. At the same time, the hot air supply system connected to the top drying component 1 can be started. At this time, the hot air supply system will The heated air flow is sequentially sent to the top bin body 6 through the main pipe 9, the branch pipe 8 and the air inlet pipe 7, and then the hot air in the top bin body 6 enters the drying equipment box 2 through the tapered pipe 12 on the air distribution component 10, so that the hot air will dry the coal powder entering the drying equipment box 2, and the dried coal powder will eventually fall out from the discharge port structure 4. By arranging the top drying component 1 and the air distribution component 10, the hot air can be evenly distributed, thereby reducing the probability of inconsistent drying effect of the coal powder during the drying process, thereby ensuring that the dried coal powder has good quality, and finally the coal powder can meet the subsequent process requirements. When the wind pressure is increased, the air flow rate is accelerated, which increases the air convection heat transfer coefficient on the surface of the coal powder, making it easier for the moisture on the surface of the coal powder to evaporate. High wind pressure can also bring about a lower relative humidity environment, further promoting the evaporation of moisture. At the same time, wind pressure and temperature work together, and high wind pressure can promote the penetration and distribution of hot air in the coal powder, thereby improving the overall drying efficiency.

[0020] Furthermore, the top bin body 6 on the top drying component 1 is fixedly connected to the drying equipment box body 2, and the main pipe 9 can be connected to the hot air supply system. The main pipe 9 on the top drying component 1 is fixedly connected to the branch pipe 8. When the hot air heated by the hot air supply system enters the top drying component 1, it will pass through the main pipe 9 into the branch pipe 8 and the air inlet pipe 7. At this time, the branch pipe 8 and the air inlet pipe 7 will distribute the hot air for the first time, so that the hot air can be evenly distributed in the top bin body 6.

[0021] Furthermore, the mounting base plate 11 on the air distribution assembly 10 is fixedly connected to the inner wall of the top bin body 6. The conical pipe 12 on the air distribution assembly 10 is an inverted conical structure with a larger diameter at the upper end and a smaller diameter at the lower end. The hot air in the top bin body 6 will enter the drying equipment box 2 through the conical pipe 12. At this time, the conical pipe 12 can distribute the hot air more evenly in the drying equipment box 2, thereby completing the second distribution of the hot air, and ultimately reducing the probability of inconsistent drying effects of the coal powder during the drying process.

[0022] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention. The scope of protection claimed in this utility model is defined by the attached claims and their equivalents.

Claims

1. The centralized dehydration structure at the top of the drying equipment is characterized by: The invention comprises a top drying assembly (1), wherein the top drying assembly (1) is fixedly mounted on the upper side wall of the drying equipment box (2), and the top drying assembly (1) is composed of a mounting frame (5), a top silo (6), an air inlet duct (7), a diversion duct (8) and a main duct (9), wherein the top silo (6) has two symmetrically fixedly mounted on the mounting frame (5), the air inlet duct (7) has a plurality of symmetrically fixedly mounted on the upper side walls of the two top silo (6), the diversion duct (8) has a plurality of symmetrically fixedly mounted on the upper side walls of the two top silo (6), and the main duct (9) has a plurality of symmetrically fixedly mounted on the upper side walls of the two top silo (6). The main pipe (9) is fixedly mounted on a plurality of air inlet pipes (7), and the plurality of branch pipes (8) are connected in series by the main pipe (9). An air distribution assembly (10) is fixedly mounted on the inner wall of the top silo (6). The air distribution assembly (10) is composed of a mounting base (11), a conical pipe (12), and a blocking protective net (13). There are a plurality of conical pipes (12) and they are all fixedly mounted on the mounting base (11). There are a plurality of blocking protective nets (13) and they are respectively fixedly mounted on the inner walls of the plurality of conical pipes (12).

2. The centralized dehydration structure at the top of the drying equipment according to claim 1, characterized in that: A feed port structure (3) is fixedly installed at the upper end of the drying equipment box (2) and between the two top bins (6), and a discharge port structure (4) is fixedly installed at the lower end of the drying equipment box (2).

3. The centralized dehydration structure at the top of the drying equipment according to claim 2, characterized in that: The top bin body (6) on the top drying component (1) is fixedly connected to the drying equipment box body (2), and the main pipeline (9) can be connected to the hot air supply system.

4. The centralized dehydration structure at the top of the drying equipment according to claim 3, characterized in that: The main pipe (9) and the branch pipe (8) on the top drying component (1) are fixedly connected.

5. The centralized dehydration structure at the top of the drying equipment according to claim 4, characterized in that: The mounting base plate (11) on the air distribution assembly (10) is fixedly connected to the inner wall of the top bin body (6).

6. The centralized dehydration structure at the top of the drying equipment according to claim 5, characterized in that: The tapered pipe (12) on the air distribution assembly (10) is an inverted tapered structure with a larger diameter at the upper end and a smaller diameter at the lower end.

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