A positive pressure conveying structure

Abstract

This utility model relates to the field of positive pressure conveying structure technology, and in particular to a positive pressure conveying structure, including a rotary valve. The bottom of the rotary valve is connected to an air supply structure, which includes a housing and a straight cylinder. The top of the housing is connected to the bottom of the rotary valve, and the bottom of the housing is connected to the top of the straight cylinder. A positive pressure fan is fixed to the right end of the straight cylinder. The positive pressure fan delivers air to the right side of the straight cylinder, allowing the material to quickly pass through the straight cylinder into a connected conveying pipe, thus achieving the conveying purpose. During operation of the positive pressure conveying structure, the material conveying rate can be adjusted by changing the rotation speed of the rotary valve. During operation, the rotary valve controls the inflow of positive pressure airflow through a circular pipe on the hopper to maintain a constant pressure with the external environment, preventing airflow loss during the conveying process and ensuring the normal operation of the positive pressure conveying structure.

Description

Technical Field

[0001] This utility model relates to the field of positive pressure conveying structure technology, specifically a positive pressure conveying structure. Background Technology

[0002] Positive pressure conveying structures utilize compressed air to push materials to the target location. The high-pressure airflow propels the material forward within the pipeline. This structure is suitable for conveying large quantities of materials over long distances, especially in applications requiring high transmission speeds, such as the conveying of bulk materials like cement and coal powder. However, positive pressure conveying structures have higher requirements than suction conveying structures. Different feeding devices must be selected and designed based on the characteristics of the conveyed material and the conveying parameters. When using a Roots blower as the air source, the pressure cannot be too high, thus limiting the conveying distance, generally ≤300 meters. A well-sealed feeding device must be used, which can lead to air loss during the conveying process and affect the normal operation of the positive pressure conveying structure. Utility Model Content

[0003] The purpose of this invention is to address the problem of pneumatic loss during the conveying process of a positive pressure conveying structure, which affects the normal use of the positive pressure conveying structure, and to propose a positive pressure conveying structure.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A positive pressure conveying structure is designed, including a rotary valve. The bottom of the rotary valve is connected to an air supply structure. The air supply structure includes a housing and a straight cylinder. The top of the housing is connected to the bottom of the rotary valve, and the bottom of the housing is connected to the top of the straight cylinder. A positive pressure fan is fixed to the right end of the straight cylinder.

[0006] With this setup, the positive pressure fan delivers air to the right side of the straight cylinder, allowing the material to quickly pass through the straight cylinder and enter the connected conveying pipe.

[0007] Preferably, a bracket is fixed to the outer wall of the rotary valve.

[0008] This feature allows the bracket to support the rotary valve, which in turn supports the structures connected to the upper and lower sides of the rotary valve, ensuring the overall stable operation of the positive pressure conveying structure.

[0009] Preferably, a base plate is fixed to each of the four bottom corners of the bracket.

[0010] This feature includes an opening on the outer wall of the base plate, through which screws can be inserted into the ground from top to bottom, increasing the stability of the connection between the bracket and the ground.

[0011] Preferably, the top of the rotary valve is connected to a feeding structure, the feeding structure including a hopper and a first vertical cylinder, the bottom of the hopper being connected to the top of the rotary valve, the top of the hopper being connected to the bottom of the first vertical cylinder, and the outer wall of the hopper being connected to a second vertical cylinder.

[0012] With this setup, materials enter the material cylinder through the first and second vertical cylinders, and the material cylinder can temporarily store the materials.

[0013] Preferably, the outer wall of the hopper is connected to a circular tube.

[0014] With this setup, the round pipe can be plugged into the air supply pipe, and the positive pressure air supply enters the hopper through the round pipe.

[0015] Preferably, flanges are fixed to the top of the outer walls of both the first and second vertical cylinders, and the second vertical cylinder is located to the left of the first vertical cylinder.

[0016] The positive pressure conveying structure proposed in this utility model has the following advantages: the positive pressure airflow in the air supply structure causes the material to enter the outer shell through the rotary valve. At this time, the positive pressure fan fixed on the right side of the outer shell is powered on and works. The positive pressure fan sends the air source into the right side of the straight cylinder. The incoming air source causes the material to quickly pass through the straight cylinder into the connected conveying pipe, thereby achieving the purpose of conveying. At the same time, during the operation of the positive pressure conveying structure, the conveying volume of the material can be adjusted by adjusting the rotation speed of the rotary valve. During the operation of the rotary valve, the incoming volume of the positive pressure airflow is controlled by the circular pipe on the hopper to achieve a constant balance with the external pressure, preventing air pressure loss during the conveying process of the positive pressure conveying structure and ensuring the normal use of the positive pressure conveying structure. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 for Figure 1 A schematic diagram showing the connection relationship between the rotary valve, housing, and bracket.

[0019] Figure 3 for Figure 1 A schematic diagram showing the connection relationship between the rotary valve, the housing, and the circular tube.

[0020] Figure 4 for Figure 1 A schematic diagram showing the connection structure between the inner and outer shell, the first vertical cylinder, and the second vertical cylinder;

[0021] Figure 5 for Figure 1 A schematic diagram showing the connection structure between the straight cylinder and the positive pressure fan.

[0022] In the diagram: 1. Rotary valve, 2. Air supply structure, 201. Outer shell, 202. Straight cylinder, 203. Positive pressure fan, 3. Feeding structure, 301. Hopper, 302. First vertical cylinder, 303. Second vertical cylinder, 4. Support, 5. Circular pipe. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings:

[0024] Please see Figure 1-5 In this embodiment, a positive pressure conveying structure includes a rotary valve 1. The bottom of the rotary valve 1 is connected to an air supply structure 2. The air supply structure 2 includes a housing 201 and a straight cylinder 202. The top of the housing 201 is connected to the bottom of the rotary valve 1. The rotary valve 1 is a mechanical device that controls the conveying of fluid (gas, liquid, or powder) by rotating a rotor. The bottom of the housing 201 is connected to the top of the straight cylinder 202. A positive pressure fan 203 is fixed to the right end of the straight cylinder 202. The positive pressure fan 203 is a device that conveys air to a specific space to make the air pressure in that space higher than the external atmospheric pressure. The fan with a mesh plate at the suction end is selected for use.

[0025] The positive pressure airflow in the air supply structure 2 causes the material to enter the outer casing 201 through the rotary valve 1. At this time, the positive pressure fan 203 fixed on the right side of the outer casing 201 is powered on and works. The positive pressure fan 203 sends the air source into the right side of the straight cylinder 202. The incoming air source causes the material to quickly pass through the straight cylinder 202 into the connected conveying pipe, thereby achieving the purpose of conveying. At the same time, during the operation of the positive pressure conveying structure, the conveying volume of the material can be adjusted by adjusting the rotation speed of the rotary valve 1. During the operation of the rotary valve 1, the inflow of positive pressure airflow is controlled by the circular pipe on the hopper 301 to achieve a constant balance with the external pressure, preventing air pressure loss during the conveying process of the positive pressure conveying structure and ensuring the normal use of the positive pressure conveying structure.

[0026] A bracket 4 is fixed to the outer wall of the rotary valve 1. A base plate is fixed to the four corners of the bottom of the bracket 4. A feeding structure 3 is connected to the top of the rotary valve 1. The feeding structure 3 includes a hopper 301 and a first vertical cylinder 302. The bottom of the hopper 301 is connected to the top of the rotary valve 1. The top of the hopper 301 is connected to the bottom of the first vertical cylinder 302. A second vertical cylinder 303 is connected to the outer wall of the hopper 301. The first vertical cylinder 302 and the second vertical cylinder 303 facilitate the entry of materials into the hopper 301. A round pipe 5 is connected to the outer wall of the hopper 301. Flanges are fixed to the top of the outer walls of the first vertical cylinder 302 and the second vertical cylinder 303. The second vertical cylinder 303 is located to the left of the first vertical cylinder 302.

[0027] Working principle:

[0028] Preparation work for positive pressure conveying structure:

[0029] Make the output flange of the positive pressure blower 203 fit with the right flange of the straight cylinder 202. Then, the bolt thread passes through the round opening of the positive pressure blower 203 flange and connects with the round opening of the outer wall of the right flange of the straight cylinder 202, thus completing the fixation of the straight cylinder 202 and the positive pressure blower 203. Next, the material is put into the hopper 301 through the first vertical cylinder 302 and the second vertical cylinder 303. Then, the end of the air inflator is sleeved on the outer wall of the round pipe 5. Finally, the flange on the left side of the straight cylinder 202 is connected and fixed with the flange on the right side of the material conveying pipeline with bolts, thus completing the preparation work of the positive pressure conveying structure.

[0030] Positive pressure conveying structure is used for:

[0031] After the material enters the hopper 301 through the first vertical cylinder 302 and the second vertical cylinder 303, the air supply pipe sends positive pressure airflow into the hopper 301 through the circular pipe 5. At this time, there will also be positive pressure gas in the material outlet 301. Then, the rotary valve 1 is opened, and the positive pressure airflow will cause the material to enter the outer shell 201 through the rotary valve 1. At this time, the positive pressure fan 203 fixed on the right side of the outer shell 201 is powered on and works. The positive pressure fan 203 sends the air source into the right side of the straight cylinder 202. The incoming air source causes the material to quickly pass through the straight cylinder 202 into the connected conveying pipe, thereby achieving the purpose of conveying. At the same time, during the operation of the positive pressure conveying structure, the conveying amount of the material can be adjusted by adjusting the rotation speed of the rotary valve 1. During the operation of the rotary valve 1, the incoming amount of positive pressure airflow is controlled by the circular pipe on the hopper 301 to achieve uniformity with the external pressure.

[0032] Maintenance and cleaning of positive pressure conveying structures:

[0033] Turn the bolts at the output end of the positive pressure blower 203 outward to disengage it from the right flange of the straight cylinder 202. Then remove the positive pressure blower 203. Next, inspect and repair the positive pressure blower 203 and the rotary valve 1. Then, send water into the hopper 301 at the first vertical cylinder 302 for rinsing. Then, open the rotary valve 1 to send the water in the hopper 301 downward into the straight cylinder 202. Then, the water flows down the straight cylinder 202 and is discharged at both ends, completing the maintenance and cleaning of the positive pressure conveying structure. Finally, install the positive pressure blower 203 and the straight cylinder 202 according to the above operation.

[0034] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A positive pressure conveying structure, comprising a rotary valve (1), characterized in that: The bottom of the rotary valve (1) is connected to an air supply structure (2); The air supply structure (2) includes a housing (201) and a straight cylinder (202). The top of the housing (201) is connected to the bottom of the rotary valve (1), and the bottom of the housing (201) is connected to the top of the straight cylinder (202). A positive pressure fan (203) is fixed to the right end of the straight cylinder (202).

2. The positive pressure conveying structure according to claim 1, characterized in that: The outer wall of the rotary valve (1) is fixed with a bracket (4).

3. The positive pressure conveying structure according to claim 2, characterized in that: The bottom four corners of the bracket (4) are respectively fixed with base plates.

4. The positive pressure conveying structure according to claim 1, characterized in that: The top of the rotary valve (1) is connected to a feeding structure (3); The feeding structure (3) includes a hopper (301) and a first vertical cylinder (302). The bottom of the hopper (301) is connected to the top of the rotary valve (1), the top of the hopper (301) is connected to the bottom of the first vertical cylinder (302), and the outer wall of the hopper (301) is connected to a second vertical cylinder (303).

5. The positive pressure conveying structure according to claim 4, characterized in that: The outer wall of the hopper (301) is connected to a circular tube (5).

6. The positive pressure conveying structure according to claim 4, characterized in that: Flanges are fixed to the top of the outer walls of the first vertical cylinder (302) and the second vertical cylinder (303), and the second vertical cylinder (303) is located to the left of the first vertical cylinder (302).

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