Pneumatic powder absorbing and conveying equipment

Abstract

The utility model relates to powder pneumatic absorbing and conveying equipment which comprises a material shed, a tank bin, a transfer bin, negative pressure material absorbing equipment and pneumatic conveying equipment, a material absorbing pipe set is arranged in the material shed, the negative pressure material absorbing equipment is provided with a material absorbing port and a material discharging port, the material absorbing port of the negative pressure material absorbing equipment is communicated with the material absorbing pipe set, and the material discharging port of the negative pressure material absorbing equipment is communicated with the material discharging port. A discharging port of the negative pressure material suction equipment is communicated with a feeding port of the transfer bin, a discharging port of the transfer bin is communicated with a feeding port of the pneumatic conveying equipment, a valve is installed on the discharging port of the transfer bin, and a discharging port of the pneumatic conveying equipment is communicated with a feeding port of the tank bin. According to the negative pressure material suction device, powder in the material shed is sucked and discharged into the transfer bin through the material suction pipe set, the powder is buffered and temporarily stored through the transfer bin, and then the powder in the transfer bin is conveyed into the tank bin through the air pressure conveying device. In the working process, powder in the material shed is directly absorbed and conveyed into the tank bin, manual operation is not needed any more, the labor intensity is reduced, and the working efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cement and ultrafine powder processing, in particular to a powder material pneumatic absorption and conveying device. Background Art

[0002] In cement and ultrafine powder industry, the raw materials are generally powder materials, and tank storage is one of the main methods, but the construction cost of tanks is relatively high. In order to reduce storage costs, it is gradually changed to shed storage and then introduced into tanks for use. The common way to transport powder materials is to transport the powder materials to the tank through a pneumatic powder conveyor. The pneumatic powder conveyor is a device that uses the kinetic energy of the airflow to transport granular materials in the powder conveying direction in a closed pipeline. It is a specific application of fluidization technology. The pneumatic powder conveyor device has a simple structure and is easy to operate. It can be transported in horizontal, vertical or inclined directions.

[0003] However, when using the existing pneumatic powder conveyor, a hopper needs to be set at the input end, and the powder is put into the hopper manually and mechanically, and then fed into the tank through the pneumatic powder conveyor, which is labor-intensive and inefficient. In addition, the loading amount cannot be determined during the loading process, which is inconvenient to use. Utility Model Content

[0004] The utility model aims at the deficiencies of the prior art and provides an automatic powder material pneumatic absorption and conveying device, which can accurately judge the loading amount, improve work efficiency and save use cost.

[0005] The utility model is realized through the following technical scheme: a pneumatic absorption and conveying device for powder materials, comprising a material shed, a tank warehouse, a transfer warehouse, a negative pressure suction device and a pneumatic conveying device, a suction pipe group is arranged in the material shed, the negative pressure suction device is provided with a suction port and a discharge port, the suction port of the negative pressure suction device is connected with the suction pipe group, the discharge port of the negative pressure suction device is connected with the feed port of the transfer warehouse, the discharge port of the transfer warehouse is connected with the feed port of the pneumatic conveying device, the discharge port of the transfer warehouse is connected with the feed port of the pneumatic conveying device, a valve is installed at the discharge port of the transfer warehouse, and the discharge port of the pneumatic conveying device is connected with the feed port of the tank warehouse.

[0006] The negative pressure suction equipment in this scheme absorbs the powder in the material shed through the suction pipe group and discharges it into the transfer bin, and the powder is temporarily stored in the transfer bin. The powder in the transfer bin is then transported to the tank bin through the pneumatic conveying equipment. The working process directly absorbs and transports the powder in the material shed to the tank bin, and no manual operation is required, which reduces labor intensity and effectively improves work efficiency.

[0007] As an optimization, the negative pressure suction device includes a filter and a first fan, the filter has a suction port, a discharge port and an air outlet, the suction port of the first fan is connected to the air outlet of the filter, the suction port of the filter is connected to the suction pipe group, and the discharge port of the filter is connected to the feed port of the transfer bin. The negative pressure suction device of this optimization scheme absorbs the powder in the material shed through the suction airflow of the first fan, and the absorbed powder is filtered by the filter and discharged into the transfer bin.

[0008] As an optimization, the pneumatic conveying equipment includes an ejector and a second fan, the ejector has a feed port, a discharge port and an air inlet, the air outlet of the second fan is connected to the air inlet of the ejector, the feed port of the ejector is connected to the discharge port of the transfer bin, and the discharge port of the ejector is connected to the feed port of the tank bin. The pneumatic conveying equipment of this optimization scheme conveys the powder in the ejector to the tank bin through the blowing airflow of the second fan.

[0009] As an optimization, the suction pipe group includes a main pipe and several branch pipes, one end of the branch pipe is connected to the main pipe, and the other end of the branch pipe is provided with a material collection cover, which is arranged facing the powder in the material shed, and the main pipe is connected to the suction port of the negative pressure suction device. The negative pressure suction device of this optimization scheme collects and absorbs the powder absorbed by several branch pipes through the main pipe, and the material collection cover arranged at the end of the branch pipe facilitates the powder to enter the branch pipe.

[0010] As an optimization, the valve is a rotary feeder valve. The rotary feeder valve of this optimization solution can discharge materials downward evenly and continuously according to the requirements of the conveying system, and is convenient for controlling the feeding amount.

[0011] As an optimization, a material level meter is installed on the transfer bin. This optimization solution can display the material quantity in the transfer bin in real time through the material level meter, which is convenient for personnel to control operations.

[0012] As an optimization, a silo top dust collector is installed on the material shed. This optimization solution filters the dust generated when sucking materials.

[0013] The beneficial effects of the utility model are as follows: the negative pressure suction device absorbs the powder in the material shed through the suction pipe group and discharges it into the transfer bin, the powder is temporarily stored in the transfer bin, the amount of powder in the transfer bin is displayed in real time by the material level meter, and the powder in the transfer bin is then transported to the tank bin by the pneumatic conveying device. The working process directly absorbs and transports the powder in the material shed to the tank bin, no longer requiring manual work, reducing labor intensity and effectively improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0015] Figure 2 This is a schematic diagram of the front view structure of the suction pipe group in the material shed;

[0016] Figure 3 This is a schematic diagram of the structure of the suction pipe group in the material shed from a top view;

[0017] As shown in the figure:

[0018] 1. Material shed, 2. Negative pressure suction equipment, 21. Filter, 22. First fan, 3. Transfer bin, 4. Valve, 5. Pneumatic conveying equipment, 51. Ejector, 52. Second fan, 6. Suction pipe group, 61. Main pipe, 62. Branch pipe, 63. Collection cover, 7. Tank bin, 8. Silo top dust collector, 9. First pipeline, 10. Second pipeline, 11. Material level meter. DETAILED DESCRIPTION

[0019] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0020] like Figures 1 to 3 As shown, a pneumatic suction and conveying device for powder materials comprises a material shed 1, a transfer bin 3, a tank bin 7, a negative pressure suction device 2 and a pneumatic conveying device 5. The material shed 1 is used to store powder materials. The material shed is a closed structure. A feed valve port is provided on one side of the material shed. A material tank truck loaded with powder materials pumps the powder materials into the material shed from the feed valve port for storage. This is an existing conventional technology. In this embodiment, a silo top dust collector 8 is installed on the top of the material shed 1.

[0021] A suction pipe group 6 is provided in the material shed 1, and the negative pressure suction device 2 is provided with a suction port and a discharge port. The suction port of the negative pressure suction device 2 is connected to the suction pipe group 6, and the negative pressure suction device 2 absorbs the powder in the material shed through the suction pipe group 6, and the discharge port of the negative pressure suction device 2 is connected to the feed port of the transfer bin 3.

[0022] Specifically, the suction pipe group 6 includes a main pipe 61 and a plurality of branch pipes 62. One end of the branch pipe 62 is connected to the main pipe 61. The other end of the branch pipe 62 is provided with a material collecting cover 63. The material collecting cover 63 is arranged facing the powder in the material shed. The main pipe 61 is connected to the suction port of the negative pressure suction device 2. In this embodiment, the main pipe 61 extends along the length direction of the material shed 1. The two ends of the main pipe 61 are sealed. The plurality of branch pipes 62 are arranged along the length direction of the main pipe 61. The material collecting cover 63 is installed at one end of each branch pipe 62 away from the main pipe. The material collecting cover 63 is a funnel-shaped structure. The plurality of material collecting covers 63 are distributed in a horizontal matrix in the material shed 1, so as to achieve a large-scale absorption of the powder in the material shed.

[0023] Specifically, the negative pressure suction device 2 includes a filter 21 and a first fan 22. The filter 21 is installed on the top of the transfer bin 3 and has a suction port, a discharge port and an air outlet. The first fan 22 is a Roots blower, which has small vibration, low noise and stable performance during operation. The suction port of the first fan 22 is connected to the air outlet of the filter 21. The suction port of the filter 21 is connected to the main pipe 61 of the suction pipe group through the first pipe 9, and the discharge port of the filter 21 is connected to the feed port at the top of the transfer bin 3. The first fan 22 sucks the powder into the suction port through the suction pipe group 6, and the filter 21 filters the powder and discharges it into the transfer bin 3.

[0024] The feed port at the bottom of the transfer bin 3 is connected to the feed port of the pneumatic conveying device 5, a valve 4 is installed at the feed port of the transfer bin 3, and the discharge port of the pneumatic conveying device 5 is connected to the feed port of the tank bin 7. A bin top dust collector 8 is also installed on the top of the tank bin 7.

[0025] Specifically, the valve 4 is a rotary feed valve, which controls the unloading of the transfer bin. The pneumatic conveying equipment 5 includes an ejector 51 and a second blower 52. The ejector 51 is an online ejector, which has a feed port, a discharge port and an air inlet. The second blower 52 is also a Roots blower, and the air outlet of the second blower 52 is connected to the air inlet of the ejector 51. The feed port of the ejector 51 is connected to the unloading port of the transfer bin 3, and the discharge port of the ejector 51 is connected to the feed port at the top of the tank bin 7 through the second pipeline 10.

[0026] A material level meter 11 is installed on the top of the transfer bin 3 described in this embodiment. The material level meter 11 is a radar material level meter. The radar material level meter is electrically connected to the display in the control room and can display the material quantity in the transfer bin in real time, which is convenient for personnel to control operations.

[0027] Working principle: the first fan 22 of the negative pressure suction equipment 2 sucks air, and the powder in the material shed 1 is sucked into the filter 21 through the suction pipe group 6. The powder is filtered by the filter 21 and discharged into the transfer bin 3. Through the setting of the level meter 11, the personnel can monitor the material amount in the transfer bin in real time in the control room. The transfer bin 3 controls the discharge of the material through the valve 4, and the powder enters the ejector 51. The second fan 52 blows the powder into the tank bin 7. The working process does not require manual operation, which reduces labor intensity and effectively improves work efficiency.

[0028] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be achieved by or by adopting the existing technology, which will not be repeated here. The above embodiments and drawings are only used to illustrate the technical scheme of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not deviate from the purpose of the present invention and should also fall within the scope of protection of the claims of the present invention.

Claims

1. A powder material pneumatic absorption and conveying device, comprising a material shed (1) and a tank (7), characterized in that: It also includes a transfer bin (3), a negative pressure suction device (2) and a pneumatic conveying device (5), wherein a suction pipe group (6) is provided in the material shed (1), and the negative pressure suction device (2) is provided with a suction port and a discharge port, the suction port of the negative pressure suction device (2) is connected to the suction pipe group (6), the discharge port of the negative pressure suction device (2) is connected to the feed port of the transfer bin (3), the discharge port of the transfer bin (3) is connected to the feed port of the pneumatic conveying device (5), the discharge port of the transfer bin (3) is installed with a valve (4), and the discharge port of the pneumatic conveying device (5) is connected to the feed port of the tank bin (7).

2. The powder pneumatic absorption and conveying equipment according to claim 1 is characterized in that: The negative pressure suction device (2) comprises a filter (21) and a first fan (22); the filter (21) has a suction port, a discharge port and an air outlet; the suction port of the first fan (22) is connected to the air outlet of the filter (21); the suction port of the filter (21) is connected to the suction pipe group (6); and the discharge port of the filter (21) is connected to the feed port of the transfer bin (3).

3. The powder pneumatic absorption and conveying equipment according to claim 1 is characterized in that: The pneumatic conveying device (5) comprises an ejector (51) and a second fan (52); the ejector (51) has a feed port, a discharge port and an air inlet; the air outlet of the second fan (52) is connected to the air inlet of the ejector (51); the feed port of the ejector (51) is connected to the discharge port of the transfer bin (3); and the discharge port of the ejector (51) is connected to the feed port of the tank bin (7).

4. The powder pneumatic absorption and conveying equipment according to claim 1 is characterized in that: The suction pipe group (6) comprises a main pipe (61) and a plurality of branch pipes (62), one end of the branch pipe is connected to the main pipe, and the other end of the branch pipe is provided with a material collecting cover (63), the material collecting cover is arranged facing the powder in the material shed, and the main pipe (61) is connected to the suction port of the negative pressure suction device (2).

5. The powder pneumatic absorption and conveying equipment according to claim 1 is characterized in that: The valve (4) is a rotary feed valve.

6. The powder pneumatic absorption and conveying equipment according to claim 1, characterized in that: A material level meter (11) is installed on the transfer bin (3).

7. The powder pneumatic absorption and conveying equipment according to claim 1 is characterized in that: A silo top dust collector (8) is installed on the material shed (1).

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