Grain pneumatic conveying aggregate tank

Abstract

The utility model discloses a pneumatic grain conveying aggregate tank in the field of grain detection technology, including a tank body and an air suction pipe and a feed pipe respectively located at the top and side of the tank body, a discharge port is provided at the bottom of the tank body, a buffer pad is provided on the inner wall of the tank body, a buffer plate is provided in the middle of the tank body, the upper end of the buffer plate is hung on the top of the tank body by a hanging rope, and the plate surface of the buffer plate faces the feed pipe. By arranging a layer of buffer pad on the inner wall of the tank body, and hanging a buffer plate at a position in the middle of the tank body facing the feed pipe, when grain enters the tank body, most of the grain will fall down due to the absorption of kinetic energy after colliding with the buffer plate, and a small part of the grain will rebound to the surrounding buffer pads, achieving a "soft landing" of the grain, thereby avoiding a rigid collision between the grain and the aggregate tank, reducing the possibility of grain being broken during transportation, and thus improving the authenticity of grain index detection.

Description

Technical Field

[0001] The utility model relates to the technical field of grain detection, in particular to a grain pneumatic conveying aggregate tank. Background Art

[0002] Grain sampling is an important inspection work before grain enters the warehouse. Generally, the sampling system is used to randomly select grain sampling points on the grain transport vehicle, and then the sampling rod is used to extract the grain. Some of the grain is sent to the laboratory, and finally various testing instruments are used to test the impurity content, degree of perfection, moisture content and other indicators of the grain, so as to determine whether the grain meets the requirements for entering the warehouse, and it can also provide guidance for the subsequent grain impurity screening.

[0003] At present, when using a sampling tube to transport grain from a grain truck to a laboratory, a pneumatic conveying system is generally used for transportation. Specifically, the sampling rod and the high-pressure fan are connected to the aggregate tank, and the high-pressure fan is used to suck air from the grain truck into the aggregate tank for temporary storage. The main problem with this system is that in order to ensure the smooth transportation of grain, a large suction force is generally required, which causes the grain to enter the aggregate tank at a faster speed. In addition, most existing aggregate tanks are steel structures, and the grain collides with the aggregate tank at high speed, which increases the breakage rate of the grain, thereby affecting the determination of some indicators of the grain. Utility Model Content

[0004] In order to overcome the disadvantages of the existing grain pneumatic conveying system that easily leads to grain breakage, the technical problem to be solved by the utility model is to provide a grain pneumatic conveying collecting tank which can reduce the grain breakage rate.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A pneumatic grain conveying aggregate tank comprises a tank body and an air suction pipe and a feed pipe respectively located on the top and side of the tank body, a discharge port is arranged at the bottom of the tank body, a buffer pad is arranged on the inner wall of the tank body, a buffer plate is arranged in the middle of the tank body, the upper end of the buffer plate is hung on the top of the tank body by a suspension rope, and the plate surface of the buffer plate faces the feed pipe.

[0007] Furthermore, the tank body includes an upper cylindrical section and a lower conical section, the feed pipe is arranged on the side wall of the cylindrical section, the buffer pad is arranged on the inner wall of the cylindrical section, and the discharge port is arranged at the bottom of the conical section.

[0008] Furthermore, a vibration motor is provided on the outer wall of the conical section of the tank body.

[0009] Furthermore, a high-pressure gas blowing nozzle connected to the interior of the tank body is provided on the top of the tank body.

[0010] Furthermore, the top of the tank body is connected to the suction pipe through an upper flange, a lower flange is provided below the discharge port at the bottom of the tank body, and an upper pneumatic butterfly valve and a lower pneumatic butterfly valve are provided on the upper flange and the lower flange respectively.

[0011] Furthermore, a gas filter is provided at a position where the top of the tank body communicates with the upper flange.

[0012] Furthermore, a mounting frame is provided between the bottom of the tank body and the lower flange.

[0013] The beneficial effect of the utility model is as follows: by arranging a layer of buffer pad on the inner wall of the tank body, and hanging a buffer plate in the middle of the tank body opposite to the feed pipe, when grain enters the tank body, most of the grain will fall after colliding with the buffer plate due to the absorption of kinetic energy, and a small amount of grain will rebound onto the surrounding buffer pad, achieving a "soft landing" of the grain, thereby avoiding a rigid collision between the grain and the aggregate tank, reducing the possibility of grain breakage during transportation, and thereby improving the authenticity of grain index detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a cross-sectional view of the utility model.

[0016] Marked in the figure are, 1-tank body, 2-intake pipe, 3-feed pipe, 4-buffer pad, 5-buffer plate, 6-vibration motor, 7-upper flange, 8-lower flange, 9-mounting frame, 11-cylindrical section, 12-conical section, 13-high-pressure gas blowing nozzle, 51-hanging rope, 71-upper pneumatic butterfly valve, 72-gas filter, 81-lower pneumatic butterfly valve. DETAILED DESCRIPTION

[0017] The utility model is further described below in conjunction with the accompanying drawings.

[0018] It should be noted that if there are directional indication terms in the present invention, such as up, down, left, right, front, and back directions and orientation terms, they are for the purpose of facilitating the description of the relative position relationship between components, and are not for the absolute position of the related components or the position relationship between components. They are only used to explain the relative position relationship and movement of the components in a certain posture. If the specific posture changes, the directional indication will also change accordingly. If there are terms related to quantity in the present invention, such as "multiple", "multiple", "several", etc., they specifically refer to two or more.

[0019] like Figure 1 , Figure 2As shown, the grain pneumatic conveying and collecting tank of the utility model comprises a tank body 1, and an air suction pipe 2 and a feeding pipe 3 respectively located at the top and the side of the tank body 1, a discharge port is provided at the bottom of the tank body 1, a buffer pad 4 is provided on the inner wall of the tank body 1, a buffer plate 5 is provided in the middle of the tank body 1, and the upper end of the buffer plate 5 is hung on the top of the tank body 1 by a hanging rope 51, and the plate surface of the buffer plate 5 faces the feeding pipe 3. The buffer pad 4 and the buffer plate 5 can both be made of silicone material, and the buffer pad 4 can be fixed to the inner wall of the tank body 1 by gluing, and the hanging ropes 51 are preferably arranged side by side in a plurality of rows along the width direction of the buffer plate 5 to prevent the buffer plate 5 from twisting when it is hit by grain. The utility model provides a buffer pad 4 and a buffer plate 5, so that when most of the grain enters the tank body 1, it first collides with the buffer plate 5, most of the kinetic energy is absorbed by the buffer plate 5, and a small part of the grain rebounds to the surrounding buffer pad 4, achieving a "soft landing" of the grain, thereby avoiding a rigid collision between the grain and the aggregate tank, reducing the possibility of grain being broken during transportation, and thus improving the authenticity of grain index detection. Because the buffer plate 5 is easy to replace, while the buffer pad 4 pasted in the tank body 1 is more troublesome to replace, the buffer plate 5 can also protect the buffer pad 4 and extend the service life of the buffer pad 4.

[0020] To facilitate the subsequent transportation of grain, the tank body 1 includes an upper cylindrical section 11 and a lower conical section 12, the feed pipe 3 is arranged on the side wall of the cylindrical section 11, the buffer pad 4 is arranged on the inner wall of the cylindrical section 11, and the discharge port is arranged at the bottom of the conical section 12. When the grain enters the tank body 1, it mainly collides with the cylindrical section 11, so the buffer pad may not be arranged on the conical section 12, and the smooth conical section 12 can also make it easier for the grain to slide down and prevent the grain from adhering to the inner wall of the tank body 1. In order to increase the sliding speed of the grain, a vibration motor 6 may be arranged on the outer wall of the conical section 12 of the tank body 1.

[0021] Furthermore, a high-pressure gas blowing nozzle 13 connected to the inside of the tank body 1 can be provided on the top of the tank body 1. The high-pressure gas blowing nozzle 13 is mainly used to blow high-pressure gas into the tank body 1 to blow away impurities such as grain and dust attached to the inner wall of the tank body 1, thereby improving the detection accuracy of the impurity content of grain, and at the same time preventing the grain and impurities remaining in the tank body 1 from affecting the subsequent grain inspection. Multiple high-pressure gas blowing nozzles 13 can be provided, or they can be rotatable to increase the blowing area and improve the blowing effect.

[0022] In order to better control the pneumatic conveying effect, the preferred solution of the utility model is that the top of the tank body 1 is connected to the suction pipe 2 through the upper flange 7, and a lower flange 8 is provided below the discharge port at the bottom of the tank body 1. The upper flange 7 and the lower flange 8 are respectively provided with an upper pneumatic butterfly valve 71 and a lower pneumatic butterfly valve 81. The upper pneumatic butterfly valve 71 is used to control the size of the suction port, thereby controlling the size of the suction force. For example, when inspecting large-grained soybeans, corn, etc., the suction port is increased to increase the suction force. When inspecting light grains such as wheat and rice, the suction port is reduced to reduce the suction force. The lower pneumatic butterfly valve 81 is used to close the discharge port when sucking grain, so that the gas suction force is concentrated in the feed pipe 3, thereby realizing grain transportation with lower suction force, which is also conducive to reducing the speed at which grain enters the tank body 1 and reducing grain breakage.

[0023] In addition, in order to make the overall solution more perfect, the utility model also provides the following improvement measures. A gas filter 72 is provided at the top of the tank body 1 where it is connected to the upper flange 7. The gas filter 72 is used to prevent dust and other impurities from entering the suction pipe 2 and being discharged, so as to avoid the impurities being sucked away and affecting the subsequent detection of impurity content in grain. In order to facilitate the installation of the aggregate tank and other equipment, a mounting frame 9 is provided between the bottom of the tank body 1 and the lower flange 8.

[0024] In summary, the utility model provides a buffer pad 4 on the inner wall of the tank body 1, and hangs a buffer plate 4 at the middle of the tank body 1 opposite to the feed pipe 3 to buffer the grain entering the tank body 1, thereby avoiding rigid collision between the grain and the tank body 1 and reducing the possibility of grain breakage during transportation. At the same time, the upper pneumatic butterfly valve 71 and the lower pneumatic butterfly valve 81 are provided to control the suction force and better control the speed at which the grain enters the tank body 1. In addition, structures such as high-pressure gas blowing nozzles 13 and gas filters 72 are provided to avoid impurities such as dust from being sucked away, thereby improving the authenticity of grain index detection.

Claims

1. A grain pneumatic conveying collecting tank, comprising a tank body (1), and an air suction pipe (2) and a feeding pipe (3) respectively located at the top and the side of the tank body (1), and a discharge port is provided at the bottom of the tank body (1), characterized in that: A buffer pad (4) is provided on the inner wall of the tank body (1), and a buffer plate (5) is provided in the middle of the tank body (1). The upper end of the buffer plate (5) is suspended on the top of the tank body (1) by a suspension rope (51), and the plate surface of the buffer plate (5) faces the feed pipe (3).

2. The grain pneumatic conveying collecting tank according to claim 1, characterized in that: The tank body (1) comprises an upper cylindrical section (11) and a lower conical section (12); the feed pipe (3) is arranged on the side wall of the cylindrical section (11); the buffer pad (4) is arranged on the inner wall of the cylindrical section (11); and the discharge port is arranged at the bottom of the conical section (12).

3. The grain pneumatic conveying collecting tank according to claim 2, characterized in that: A vibration motor (6) is provided on the outer wall of the conical section (12) of the tank body (1).

4. The grain pneumatic conveying collecting tank according to claim 2, characterized in that: The top of the tank body (1) is provided with a high-pressure gas blowing port (13) which is in communication with the interior of the tank body (1).

5. The grain pneumatic conveying collecting tank according to any one of claims 1 to 4, characterized in that: The top of the tank body (1) is connected to the suction pipe (2) via an upper flange (7), and a lower flange (8) is provided below the discharge port at the bottom of the tank body (1). An upper pneumatic butterfly valve (71) and a lower pneumatic butterfly valve (81) are provided on the upper flange (7) and the lower flange (8), respectively.

6. The grain pneumatic conveying collecting tank according to claim 5, characterized in that: A gas filter (72) is provided at a position where the top of the tank body (1) is connected to the upper flange (7).

7. The grain pneumatic conveying collecting tank according to claim 5, characterized in that: A mounting frame (9) is provided between the bottom of the tank body (1) and the lower flange (8).

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