Powder flow conveying device

Abstract

The utility model relates to a powder flow conveying device which is used for conveying chemical raw materials and comprises a vacuum hopper, an air outlet end and a discharging end are arranged on the upper side and the lower side of the vacuum hopper respectively, a material pumping hose is arranged on one side of the vacuum hopper, and the air outlet end of the vacuum hopper is communicated with a vacuum pump. A butt joint hole is formed in the inner bottom wall of the material barrel; the material suction structure comprises a material suction steel pipe and a butt joint disc, the butt joint disc is arranged in the butt joint hole, a connecting frame is arranged between the material suction steel pipe and the butt joint disc, the material suction steel pipe can be kept in a vertical state, and the material suction steel pipe is communicated with the material pumping hose and located in the material barrel. And the material suction steel pipe can pump and convey the chemical raw materials in the material barrel. According to the powder flow conveying device, the material suction steel pipe is designed for fixed-point material suction, the material suction position of the material suction steel pipe does not need to be adjusted, the material suction steel pipe is supported through the butt joint disc and the connecting frame, the material suction steel pipe does not need to be held manually, and therefore the labor burden of workers is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical raw material transportation, in particular to a powder flow transportation device. Background Art

[0002] A vacuum conveyor is a dust-free, closed pipeline conveying equipment that uses vacuum suction to transport granular and powdered materials. It uses the pressure difference between the vacuum and the ambient space to form gas flow in the pipeline, drive the movement of powdered materials, and thus complete the powder conveying.

[0003] For example, in the production and preparation of fertilizers, the chemical raw materials used to prepare the fertilizers need to be transferred to the preparation containers. In order to reduce dust in the workshop, a vacuum conveyor is used to complete the transfer and transportation of powders (chemical raw materials). In the existing vacuum conveyors, although the vacuum conveyors can complete the transportation of powders, the extraction pipe needs to be manually held. The purpose of manual holding is to ensure that the extraction pipe does not shake at will and to perform reciprocating suction. This increases the burden of manual labor. For this reason, the present application proposes a powder flow conveying device. Utility Model Content

[0004] The utility model provides a powder flow conveying device, which collects chemical raw material powders by arranging a conical material barrel, and then keeps a suction steel pipe in a vertical state by placing a docking plate in a docking hole. There is no need to manually hold the suction steel pipe, and the suction steel pipe is used to suck and convey the collected chemical raw materials, thereby reducing the burden of manual labor.

[0005] The utility model solves the above technical problems with the following technical solutions: A powder flow conveying device for conveying chemical raw materials, comprising a vacuum hopper, wherein the upper and lower sides of the vacuum hopper are respectively an air outlet end and a material outlet end, and a material extraction hose is arranged on one side of the vacuum hopper, and the air outlet end of the vacuum hopper is connected to a vacuum pump, and further comprising:

[0006] The barrel is conical in shape and has a docking hole on the inner bottom wall of the barrel;

[0007] The suction structure includes a suction steel pipe and a docking plate, wherein the docking plate is arranged in the docking hole, and a connecting frame is arranged between the suction steel pipe and the docking plate to allow the suction steel pipe to maintain a vertical state. The suction steel pipe is connected to a suction hose and is located in a material barrel. When the vacuum pump is working, the suction steel pipe can pump and transport the chemical raw materials in the material barrel.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, the docking hole penetrates the bottom of the barrel, so that when the docking plate is separated from the docking hole, the docking hole can discharge the chemical raw materials in the barrel.

[0010] Furthermore, both the docking hole and the docking disk are in the shape of a stepped shaft. When the docking disk is fitted into the docking hole, a stepped seal is formed between the docking hole and the docking disk.

[0011] Furthermore, the docking disk is located below the material suction steel pipe and forms an aggregate area, enabling the material suction steel pipe to suck and convey chemical raw materials at the aggregate area.

[0012] Furthermore, it further includes a scraping structure, which is rotatably connected to the material barrel and is rotatably connected to the outside of the material suction steel pipe for scraping the inner wall of the material barrel.

[0013] Furthermore, the scraping structure includes an outer ring, an inner disk, a connecting strip, and a scraping plate. Among them, the outer ring is rotatably connected to the material barrel, the inner disk is rotatably connected to the outside of the material suction steel pipe, the connecting strip is integrally connected between the outer ring and the inner disk, and the scraping plate is integrally connected to the bottom of the connecting strip and fits against the inner wall of the material barrel. When the outer ring rotates, the scraping plate can scrape the inner wall of the material barrel.

[0014] Furthermore, a protruding portion is provided on the material barrel, and a recessed portion is formed at the bottom of the outer ring. The recessed portion is adapted to the protruding portion, enabling the outer ring to be rotatably connected to the outside of the protruding portion through the recessed portion.

[0015] Furthermore, a rolling groove is formed on the protruding portion, and a number of ball bearings arranged in a circumferential array and fitting against the bottom of the outer ring are provided in the rolling groove.

[0016] Compared with the prior art, the technical solution of the present application has the following beneficial technical effects:

[0017] For this powder flow conveying device, the material suction steel pipe is designed to suck materials at a fixed point without the need to adjust the material suction position of the material suction steel pipe. The docking disk and the connecting frame are used to support the material suction steel pipe, eliminating the need for manual holding of the material suction steel pipe, thereby reducing the manual labor burden. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of a powder flow conveying device provided by an embodiment of the present invention;

[0019] Figure 2 is a semi-sectional structural diagram of the material barrel and the connection structure in an embodiment of the present invention;

[0020] Figure 3 is Figure 2 a partial enlarged schematic diagram of area A in

[0021] Figure 4 is a schematic structural diagram of the ball bearings and their connection structure in an embodiment of the present invention;

[0022] Figure 5 isFigure 2 A partial enlarged schematic diagram of area B in the middle.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Vacuum hopper; 2. Vacuum pump; 3. Suction hose; 4. Material barrel; 5. Suction structure; 51. Suction steel pipe; 52. Docking plate; 53. Connecting frame; 6. Scraping structure; 61. Outer ring; 62. Inner plate; 63. Attachment bar; 64. Scraper; 7. Ball; 8. Preparation tank. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0026] like Figure 1 and Figure 2 As shown, a powder flow conveying device in this embodiment is used for conveying chemical raw materials, such as chemical raw materials used for preparing fertilizers. This chemical raw material is, for example, conveyed to a preparation tank 8 in the prior art. The powder flow conveying device includes a vacuum hopper 1, a vacuum pump 2, a suction hose 3, a barrel 4 and a suction structure 5. The vacuum hopper 1, the vacuum pump 2 and the suction hose 3 are prior arts and are briefly described here. First, the upper and lower sides of the vacuum hopper 1 are respectively an air outlet end and a material outlet end, as shown in FIG. Figure 1 As shown, the air outlet end of the vacuum hopper 1 is connected to the vacuum pump 2, and the suction hose 3 is arranged on one side of the vacuum hopper 1, so that when the vacuum pump 2 is in operation, negative pressure can be generated at the suction hose 3, and the discharge end of the vacuum hopper 1 is connected to the inlet of the preparation tank 8, so that the chemical raw material powder in the vacuum hopper 1 can be transferred into the preparation tank 8, thereby completing the transportation of the chemical raw material powder.

[0027] The material barrel 4 and the material suction structure 5 are the focus of this application and are specifically described here. Figure 1-3 As shown, first, the cross-section of the inner contour and the cross-section of the outer contour of the barrel 4 are both conical, so that when the chemical raw materials at the bottom of the barrel 4 are extracted, the remaining chemical raw material powders can automatically gather in the area where they are extracted, and a docking hole is opened on the inner bottom wall of the barrel 4, and the docking hole is used to provide a limiting interval so that the suction structure 5 can remain stable.

[0028] like Figure 1-3As shown, the material suction structure 5 specifically includes a material suction steel pipe 51, a docking plate 52, and eight groups of connecting frames 53. Among them, the docking plate 52 is arranged in the docking hole, and the connecting frame 53 is fixed between the material suction steel pipe 51 and the docking plate 52. In this design, since the docking plate 52 is limited by the docking hole, the docking plate 52 cannot move radially, ensuring the stability of the docking plate 52. And supported by the connecting frame 53, the material suction steel pipe 51 can be kept in a vertical state. At this time, there is no need for manual support of the material suction steel pipe 51, and there is no need to adjust the material suction position of the material suction steel pipe 51, so as to reduce the manual labor burden.

[0029] In addition, it should be noted that the material suction steel pipe 51 is specifically located at the center of the material bucket 4, and the material suction steel pipe 51 is connected to the pumping hose 3 and is located in the material bucket 4. When the vacuum pump 2 works, the material suction steel pipe 51 can suck and convey the chemical raw materials in the material bucket 4. Further explanation, the docking plate 52 is specifically located below the material suction steel pipe 51 and forms an aggregate area, so that the material suction steel pipe 51 can suck and convey the chemical raw materials at the aggregate area.

[0030] In this way, when in use, the material bucket 4 plays a role in storing chemical raw materials and collecting chemical raw materials when the chemical raw materials at the inlet of the material suction steel pipe 51 are sucked away. The material suction steel pipe 51 is supported by the docking plate 52 and the connecting frame 53 to keep the material suction steel pipe 51 in a vertical state. And the material suction steel pipe 51 continuously sucks the chemical raw materials at its inlet, so that there is no need for workers to hold the material suction steel pipe 51, thus achieving the purpose of reducing the burden on workers.

[0031] Furthermore, in a preferred solution, as Figure 3 shown, the docking hole penetrates through the bottom of the material bucket 4. When the docking plate 52 is located in the docking hole, the docking plate 52 plays a role in sealing the docking hole. When the docking plate 52 is separated from the docking hole, the docking hole can discharge the chemical raw materials in the material bucket 4.

[0032] Specifically, both the docking hole and the docking plate 52 are in the shape of a stepped shaft. When the docking plate 52 is fitted in the docking hole, a stepped seal is formed between the docking hole and the docking plate 52.

[0033] In addition, considering that chemical raw materials will agglomerate when, for example, getting damp, in this case, some chemical raw materials will bridge in the material bucket 4 and adhere to the inner wall of the material bucket 4. In a certain embodiment, as Figure 1-3 shown, the powder flow conveying device further includes a scraping structure 6, which is rotatably connected to the material bucket 4 and is rotatably connected to the outside of the material suction steel pipe 51 for scraping the inner wall of the material bucket 4.

[0034] For further explanation of the scraping structure 6, as a preferred design of the scraping structure 6, as Figure 2 and 3As shown in the figure, the scraping structure 6 includes an outer ring 61, an inner disc 62, a receiving strip 63 and a scraping plate 64. Among them, the outer ring 61 is rotatably connected to the material barrel 4, and the inner disc 62 is rotatably connected to the outside of the material suction steel pipe 51. That is to say, the scraping structure 6 actually rotates around the material suction steel pipe 51. The receiving strip 63 is integrally connected between the outer ring 61 and the inner disc 62, and the scraping plate 64 is integrally connected to the bottom of the receiving strip 63 and fits against the inner wall of the material barrel 4. In this way, when the outer ring 61, the inner disc 62 or the receiving strip 63 is toggled, the scraping plate 64 will rotate synchronously, which does not affect the normal material suction and transportation of the material suction steel pipe 51, and scrapes the inner wall of the material barrel 4 to prevent the inner wall of the material barrel 4 from adhering to the chemical raw material powder and destroying the bridging phenomenon. That is, when the outer ring 61 rotates, the scraping plate 64 can scrape the inner wall of the material barrel 4.

[0035] Regarding the description of the rotatable connection between the outer ring 61 and the material barrel 4, as Figures 3-5 shown in the figure, the material barrel 4 is provided with a protruding part, and the bottom of the outer ring 61 is provided with a recessed part, and the recessed part is adapted to the protruding part, so that the outer ring 61 can be rotatably connected to the outside of the protruding part through the recessed part.

[0036] In order to make the rotation of the outer ring 61 smoother, further, a rolling groove is provided on the protruding part, and a number of balls 7 arranged in a circular array and fitting against the bottom of the outer ring 61 are provided in the rolling groove. By using the rolling characteristics of the balls 7, the frictional resistance is reduced, so that the overall rotation of the scraping structure 6 is more convenient.

[0037] Working principle:

[0038] The material barrel 4 can first store chemical raw materials. Secondly, when the chemical raw materials are sucked away at the inlet of the material suction steel pipe 51, the conical design of the material barrel 4 can make the remaining raw materials slide along the inner wall of the material barrel 4, playing the role of collecting chemical raw materials;

[0039] The material suction steel pipe 51 is supported by the docking plate 52 and the connecting frame 53, so that the material suction steel pipe 51 is kept in a vertical state, and the material suction steel pipe 51 continuously sucks the chemical raw materials at its inlet. In this way, the cooperation between the material barrel 4 and the material suction structure 5 can play the role of eliminating the need for workers to hold the material suction steel pipe 51 by hand, and thus achieving the purpose of reducing the burden on workers.

[0040] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A powder flow conveying device for conveying chemical raw materials, comprising a vacuum hopper (1), wherein the upper and lower sides of the vacuum hopper (1) are respectively an air outlet end and a material outlet end, and a material extraction hose (3) is arranged on one side of the vacuum hopper (1), and the air outlet end of the vacuum hopper (1) is connected to a vacuum pump (2), characterized in that: Also includes: The barrel (4) is conical in shape, and a docking hole is provided on the inner bottom wall of the barrel (4); The suction structure (5) comprises a suction steel pipe (51) and a docking plate (52), wherein the docking plate (52) is arranged in the docking hole, and a connecting frame (53) is arranged between the suction steel pipe (51) and the docking plate (52) so that the suction steel pipe (51) can maintain a vertical state. The suction steel pipe (51) is connected to the extraction hose (3) and is located in the material barrel (4). When the vacuum pump (2) is working, the suction steel pipe (51) can extract and transport the chemical raw materials in the material barrel (4).

2. A powder flow conveying device according to claim 1, characterized in that: The docking hole penetrates the bottom of the barrel (4), and when the docking plate (52) is separated from the docking hole, the docking hole can discharge the chemical raw materials in the barrel (4).

3. A powder flow conveying device according to claim 2, characterized in that: The docking hole and the docking plate (52) are both in the shape of a stepped shaft, and when the docking plate (52) is fitted into the docking hole, a stepped seal is formed between the docking hole and the docking plate (52).

4. A powder flow conveying device according to claim 3, characterized in that: The docking plate (52) is located below the suction steel pipe (51) and forms a material collection area, so that the suction steel pipe (51) can extract and transport the chemical raw materials in the material collection area.

5. A powder flow conveying device according to any one of claims 1 to 4, characterized in that: It also includes a scraping structure (6) which is rotatably connected to the material barrel (4) and rotatably connected to the outer side of the material suction steel pipe (51) for scraping the inner wall of the material barrel (4).

6. A powder flow conveying device according to claim 5, characterized in that: The scraper structure (6) comprises an outer ring (61), an inner disc (62), a receiving bar (63) and a scraper (64), wherein the outer ring (61) is rotatably connected to the material barrel (4), the inner disc (62) is rotatably connected to the outer side of the material suction steel pipe (51), the receiving bar (63) is integrally connected and arranged between the outer ring (61) and the inner disc (62), and the scraper (64) is integrally connected to the bottom of the receiving bar (63) and fits with the inner wall of the material barrel (4), so that when the outer ring (61) rotates, the scraper (64) can scrape the inner wall of the material barrel (4).

7. A powder flow conveying device according to claim 6, characterized in that: The barrel (4) is provided with a protruding portion, and the bottom of the outer ring (61) is provided with a recessed portion, which is matched with the protruding portion so that the outer ring (61) can be rotatably connected to the outer side of the protruding portion through the recessed portion.

8. A powder flow conveying device according to claim 7, characterized in that: The protruding portion is provided with a rolling groove, in which a plurality of balls (7) are arranged in a circular array and are attached to the bottom of the outer ring (61).

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