Small powder material pneumatic conveying device

Abstract

The utility model provides a small powder material pneumatic conveying device which comprises a fixing plate, an electric cylinder and a conveying bin, the conveying bin comprises an inner bin body and an outer bin body sleeved outside the inner bin body, one end of the electric cylinder is connected to the fixing plate, a piston rod of the electric cylinder is connected with the inner bin body and can drive the inner bin body to move, and a feeding port is formed in the upper portion of the inner bin body. One end of the inner bin is connected with an air inlet pipe. The small powder material pneumatic conveying device is compact in structure, convenient to arrange, low in space height requirement and suitable for conveying powder materials or dust in a small space. The device has a self-cleaning function and can run for a long time. Through control of the controller, automatic operation can be realized.

Description

Technical Field

[0001] The utility model belongs to the field of powder conveying devices, and particularly relates to a small pneumatic conveying device for powder materials. Background Art

[0002] In the industrial production process, the transportation problems of powdery materials or dust are often encountered. When the production site space is narrow and the total amount of powdery materials or dust is relatively small, the cost performance of arranging a large bin pump system is too low, and the large bin pump system has high requirements for the upper and lower spaces, making it difficult to install in a small space. Summary of the Invention

[0003] Aiming at the technical problem that the existing large bin pump system is difficult to install and use in a small space, the utility model provides a small pneumatic conveying device for powder materials with a compact structure and convenient installation.

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

[0005] A small pneumatic conveying device for powder materials, comprising a fixing plate, an electric cylinder and a conveying bin. The conveying bin includes an inner bin and an outer bin sleeved outside the inner bin. One end of the electric cylinder is connected to the fixing plate, and the piston rod of the electric cylinder is connected to the inner bin and can drive the inner bin to move. An inlet is arranged at the upper part of the inner bin, and an inlet pipe is connected to one end of the inner bin.

[0006] Preferably, a slide rail is arranged on the inner wall of the outer bin, and a slider sliding along the slide rail is arranged on the outer wall of the outer bin.

[0007] Preferably, three groups of slide rails and chutes are arranged.

[0008] Preferably, a cleaning air pipe is further installed in the gap between the inner bin and the outer bin.

[0009] Preferably, the inner bin includes an end plate, an inner cylinder body and an inner dust outlet, and a sealing gasket is arranged on the end plate.

[0010] Preferably, the outer bin includes an outer cylinder body and an outer dust outlet, and the outer dust outlet is connected to a dust outlet pipe.

[0011] Preferably, electromagnetic valves are installed on both the inlet pipe and the cleaning air pipe.

[0012] Preferably, a feeding device is further installed above the inlet.

[0013] Preferably, a controller is further included, and the electric cylinder, the electromagnetic valve and the feeding device are all electrically connected to the controller.

[0014] Compared with the prior art, the advantages and positive effects of the utility model are as follows:

[0015] The small pneumatic conveying device for powder materials of the present utility model has a compact structure, is convenient to arrange, has low requirements for space height, and is suitable for conveying powdery materials or dust in small spaces. This device has a self-cleaning function and can operate for a long time. It can be automatically operated through the control of a controller. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a loading state diagram of the small pneumatic conveying device for powder materials of the present utility model;

[0017] Figure 2 It is a feeding state diagram of the small pneumatic conveying device for powder materials of the present utility model;

[0018] Figure 3 is Figure 2 a sectional view taken along the AA direction in

[0019] In the above figures: 1, fixed plate; 2, electric cylinder; 21, piston rod; 3, inner bin; 31, end plate; 32, inner cylinder; 33, inner dust outlet; 34, feeding port; 35, sealing gasket; 36, slider; 4, outer bin; 41, outer cylinder; 42, outer dust outlet; 43, dust outlet pipe; 44, slide rail; 5, intake pipe; 6, cleaning air pipe; 7, belt conveyor; 8, material. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to better understand the present utility model, specific descriptions will be made below in conjunction with the drawings and embodiments.

[0021] Embodiment: As Figures 1 to 3 shown, a small pneumatic conveying device for powder materials includes a fixed plate 1, an electric cylinder 2, a conveying bin and a controller. The fixed plate 1 serves as the fixed foundation of the entire pneumatic conveying device and is installed at fixed positions such as the wall or mounting rack of the construction site. The conveying bin includes an inner bin 3 and an outer bin 4 sleeved outside the inner bin 3. One end of the electric cylinder 2 is connected to the fixed plate 1, and the piston rod 21 of the electric cylinder 2 is connected to the inner bin 3. The electric cylinder 2 is electrically connected to the controller. When the piston rod 21 reciprocates under the control of the controller, it drives the inner bin 3 to reciprocate left and right along the outer bin 4, realizing the switching between the loading station and the feeding station. The connection mode between the fixed plate 1 and the electric cylinder 2 and the connection mode between the piston rod 21 and the inner bin 3 can be a fixed connection or a hinge connection. The inner bin 3 includes an inner cylinder 32. A end plate 31 is provided at the left end of the inner cylinder 32, and the right end of the inner cylinder 32 is provided with a reduced-diameter structure to form an inner dust outlet 33. A sealing gasket 35 is provided on the end plate 31. When the inner bin 3 moves into the outer bin 4, the sealing gasket 35 can seal the gap between the inner bin 3 and the outer bin 4 to prevent dust from leaking out through the gap. The outer bin 4 includes an outer cylinder 41. The right end of the outer cylinder 41 is provided with a reduced-diameter structure to form an outer dust outlet 42. The outer dust outlet 42 is connected to a dust outlet pipe 43, and the dust removal pipe is connected to the target silo.

[0022] A feed inlet 34 is provided at the upper part of the inner bin 3. The left end of the inner bin 3 is connected to an air inlet pipe 5, and the air inlet pipe 5 is connected to a compressed air gas source. A first electromagnetic valve is installed in the air inlet pipe 5. After the first electromagnetic valve is opened, compressed air enters the inner bin 3 through the air inlet pipe 5, and the powder in the inner bin 3 is blown out through the dust removal pipe. To increase the conveying power, a plurality of the air inlet pipes 5 are provided. A cleaning air pipe 6 is also installed in the gap between the inner cylinder and the outer cylinder. The cleaning air pipe 6 is also connected to the compressed air gas source, and a second electromagnetic valve is installed in the cleaning air pipe 6. The compressed air input through the cleaning air pipe 6 can clean the scattered or accumulated powder material 8 or dust between the inner bin 3 and the outer bin 4, so as to keep the inside of the device clean. Both the first electromagnetic valve and the second electromagnetic valve are electrically connected to the controller, and their switching states can be controlled by the controller.

[0023] To reduce the friction between the inner bin 3 and the outer bin 4, slide rails 44 are provided on the inner wall of the outer bin 4, and sliders 36 that slide along the slide rails 44 are provided on the outer wall of the outer bin 4. Preferably, three groups of the slide rails 44 and the slide ways are provided, two groups are provided at the lower part, and one group is provided at the upper part to ensure that the sliding movement of the inner bin 3 is more stable.

[0024] To facilitate the loading of the material 8 into the inner bin 3, a feeding device electrically connected to the controller is further provided above the feed inlet 34. The feeding device can be a small belt conveyor 7, a screw conveyor, or a hopper with a storage function, etc.

[0025] The operation process of the small powder material pneumatic conveying device is as follows: When powder material needs to be conveyed, the piston rod 21 of the electric cylinder 2 retracts, and when the inner bin 3 moves leftward, the feed inlet 34 moves below the feeding device. The feeding device operates under the control of the controller to introduce the material 8 into the inner bin 3. After running for a preset time, the feeding device stops rotating. The piston rod 21 of the electric cylinder 2 extends, and the inner bin 3 is pushed into the outer bin 4 and pressed tightly. Thereafter, the first electromagnetic valve in the air inlet pipe 5 is opened, and the compressed air blows the material 8 through the discharge pipe into the target silo, completing one conveying. Repeating this cycle, all the material conveyings are completed. Finally

[0026] the cleaning air pipe 6 is ventilated to complete the cleaning work.

[0027] The small powder material pneumatic conveying device described in this embodiment has a compact structure, is convenient to arrange, has a low requirement for the space height, and is suitable for the conveying of powder materials or dust in a small space. This device has a self-cleaning function and can operate for a long time. Through the control of the controller, automatic operation can be realized.

[0028] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model in other forms. Any person skilled in the art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present utility model, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model still fall within the protection scope of the technical solution of the present invention.

Claims

1. A small-sized pneumatic conveying device for powder materials, characterized in that: It includes a fixed plate, an electric cylinder and a conveying bin, wherein the conveying bin includes an inner bin and an outer bin mounted outside the inner bin, one end of the electric cylinder is connected to the fixed plate, the piston rod of the electric cylinder is connected to the inner bin and can drive the inner bin to move, a feed port is provided on the upper part of the inner bin, and one end of the inner bin is connected to an air inlet pipe.

2. The small-sized pneumatic conveying device for powder materials according to claim 1 is characterized in that: The inner wall of the outer bin is provided with a slide rail, and the outer wall of the outer bin is provided with a slider which slides along the slide rail.

3. The small-sized pneumatic conveying device for powder materials according to claim 2 is characterized in that: The slide rails and the slideways are arranged in three groups.

4. The small-sized pneumatic conveying device for powder materials according to claim 1 is characterized in that: A cleaning air pipe is also installed in the gap between the inner bin and the outer bin.

5. The small-sized pneumatic conveying device for powder materials according to claim 1, characterized in that: The inner bin comprises an end plate, an inner cylinder and an inner dust outlet, and a sealing gasket is arranged on the end plate.

6. The small-sized pneumatic conveying device for powder materials according to claim 1, characterized in that: The outer bin comprises an outer cylinder and an outer dust outlet, and the outer dust outlet is connected to a dust outlet pipe.

7. The small-sized pneumatic conveying device for powder materials according to claim 4 is characterized in that: The air inlet pipe and the scavenging air pipe are both equipped with electromagnetic valves.

8. The small-sized pneumatic conveying device for powder materials according to claim 7, characterized in that: The utility model also comprises a feeding device installed above the feeding port.

9. The small-sized pneumatic conveying device for powder materials according to claim 8, characterized in that: The utility model also comprises a controller, and the electric cylinder, the electromagnetic valve and the feeding device are all electrically connected to the controller.

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