Spiral pneumatic conveying device

Abstract

The utility model relates to the technical field of pneumatic conveying devices, in particular to a spiral pneumatic conveying device. The device comprises: a hopper, the bottom of which is provided with a first discharge port; a feeding hole connected with the first discharging hole is formed in the top of the storage barrel, and the bottom of the storage barrel is connected with a conveying pipeline and an air outlet of the cyclone; a sealing plate is arranged at the conveying tail end of the conveying pipeline; the winding structure is mounted in the conveying pipeline, one end of the winding structure is connected with the sealing plate, and the other end of the winding structure is connected with the output end of a motor; a material storage cylinder air inlet is formed in the material storage cylinder, a swirler air inlet is formed in the swirler, and a second discharging opening with a downward opening is formed in the conveying tail end of the conveying pipeline. The pneumatic conveying device effectively solves the technical problem that in the prior art, a pneumatic conveying device cannot convey wet, sticky and even pasty materials, so that the investment cost of equipment for underground operation is high.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic conveying devices, in particular to a spiral pneumatic conveying device. Background Art

[0002] Pneumatic conveying device is a device that uses airflow as a power source to transport materials from one place to another through a pipeline. In the process of conveying materials, pneumatic conveying devices often cause blockages due to fluctuations in material particle size, unstable pressure of the conveying air source, and high pressure in the terminal receiving silo. The existing pneumatic conveying devices require manual unblocking of the pipeline, which is time-consuming and has low efficiency in unblocking blockages, seriously reducing production efficiency.

[0003] In response to the above problems, a patent document with authorization announcement number CN220466848U discloses a pneumatic conveying device, in which a feeding bin and a receiving bin are connected by a feeding pipe, a purge part and a feeding pump are provided on the feeding pipe, and a receiving valve is provided between the purge part and the receiving bin. When blockage occurs, the feeding valve between the purge part and the feeding bin is closed, so that the gas in the purge part is transported to the feeding pipe, and the material blocked in the feeding pipe is blown away and transported to the receiving bin along the feeding pipe, so as to dredge the blocked pneumatic conveying device and recover the blocked material. The dredging efficiency is high and no manual operation is required, thereby effectively improving the production efficiency.

[0004] It can be seen that the above-mentioned pneumatic conveying device clears and recovers the powdered materials blocked in the feeding pipe through the purge part. However, in underground mine operations, it is necessary to convey not only powdered materials, but also wet and sticky or even pasty materials such as coal slurry. Since wet and sticky or even pasty materials have strong adhesion and cohesion, they can adhere tightly to the inner wall of the pipe to form a layer of material that is difficult to remove. This material layer has great resistance to airflow, making it difficult for airflow to penetrate the material layer and achieve the effect of blowing away the blocked materials. Therefore, the above-mentioned pneumatic conveying device cannot convey wet and sticky or even pasty materials well, and another conveying device is needed to convey wet and sticky or even pasty materials, which greatly increases the equipment investment cost of underground mine operations. Utility Model Content

[0005] The utility model provides a spiral pneumatic conveying device to solve the technical problem that the pneumatic conveying device in the prior art cannot convey wet, sticky or even pasty materials, resulting in high equipment investment cost for underground mine operations.

[0006] In order to solve the above problems, the spiral pneumatic conveying device provided by the utility model adopts the following technical solutions:

[0007] A spiral pneumatic conveying device, comprising:

[0008] A hopper having a first discharge port at the bottom thereof;

[0009] A material storage cylinder, the top of which is provided with a material inlet connected to the first material outlet, and the bottom of which is connected to a conveying pipeline and an air outlet of the cyclone;

[0010] A sealing plate is provided at the conveying end of the conveying pipeline;

[0011] An orbiting structure is installed in the conveying pipeline, one end of which is connected to the sealing plate, and the other end is connected to the output end of the motor;

[0012] The material storage barrel is provided with a material storage barrel air inlet, the cyclone is provided with a cyclone air inlet, and the conveying end of the conveying pipeline is provided with a second material discharge port opening downward.

[0013] The beneficial effects of the spiral pneumatic conveying device provided by the utility model are as follows: 1) by connecting the bottom of the storage barrel with the conveying pipeline and the air outlet of the cyclone, air inlets are arranged on the storage barrel and the cyclone. When conveying powdered materials, the air inlet of the cyclone takes air into the storage barrel. Under the action of gas pressure, the materials are conveyed along the conveying pipeline and discharged at the second outlet; 2) while the air inlet of the cyclone takes air into the air inlet of the storage barrel, the air inlet of the storage barrel also takes air into the storage barrel, giving the materials a downward force to prevent the materials from pushing upward; 3) by installing an orbiting structure in the conveying pipeline, in the process of conveying wet sticky or pasty materials, the orbiting structure rotates in the conveying pipeline driven by the motor, thereby orbiting the wet sticky or pasty materials to prevent them from accumulating and sticking in the conveying pipeline, so as to avoid the pipeline blockage caused by this, thereby ensuring the smooth conveying of the wet sticky or pasty materials, without using other equipment to convey the wet sticky or pasty materials, and reducing the equipment investment cost of underground mine operations.

[0014] Through the above arrangement, the utility model completes the improvement and upgrade of the existing pneumatic conveying device, and effectively solves the technical problem that the pneumatic conveying device in the prior art cannot convey wet, sticky or even pasty materials, resulting in high equipment investment costs for underground mine operations.

[0015] Furthermore, a material level meter is provided on the storage barrel to monitor the material level height of the material stored in the storage barrel in real time.

[0016] Furthermore, an automatic valve is provided between the first discharge port and the feed port.

[0017] Furthermore, the material level meter and the automatic valve are both connected to a controller, and the controller is used to receive the material level information measured by the material level meter and control the opening and closing of the automatic valve.

[0018] Furthermore, the winding structure is a triangular drill rod or a wire rope or a spiral blade.

[0019] Furthermore, a conveying hose is sheathed on the outer surface of the conveying pipeline.

[0020] Furthermore, the orbiting structure is connected to the motor through the cyclone.

[0021] Furthermore, the motor is an electric motor, a hydraulic motor or a pneumatic motor.

[0022] Furthermore, the longitudinal section of the second discharge port is a trapezoid, and the length of the upper base of the trapezoid is greater than the length of the lower base. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] By reading the detailed description below with reference to the accompanying drawings, the above and other purposes, features and advantages of the exemplary embodiments of the present invention will become easy to understand. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0024] Figure 1 A schematic diagram of the structure of the spiral pneumatic conveying device provided by the utility model;

[0025] Figure 2 for Figure 1 A top view of the screw-type pneumatic conveying device is shown.

[0026] Description of reference numerals:

[0027] 1. Hopper; 2. Storage barrel; 3. Conveying pipeline; 4. Cyclone; 5. Sealing plate; 6. Storage barrel air inlet; 7. Cyclone air inlet; 8. Wire rope; 9. Automatic valve; 10. Conveying hose; 11. Motor; 12. Second discharge port. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0029] It should be noted that the main idea of ​​the spiral pneumatic conveying device provided by the utility model is: by connecting the bottom of the storage barrel with the conveying pipe and the air outlet of the cyclone, and arranging a winding device in the conveying pipe, connecting one end of the winding device to the motor, and arranging air inlets on the storage barrel and the cyclone. When conveying wet, sticky or pasty materials, the air inlets of the storage barrel and the cyclone simultaneously intake air into the storage barrel, and at the same time, the winding device starts to rotate driven by the motor. The material is conveyed along the conveying pipe under the action of gas pressure. During the conveying process, the winding device circumvents the material, which can effectively prevent the material from accumulating, sticking and clogging the pipe in the conveying pipe. Finally, the material is conveyed to the discharge port of the conveying pipe and discharged from the discharge port.

[0030] After introducing the basic principle of the utility model, various non-limiting embodiments of the utility model are specifically introduced below. Any number of elements in the drawings is for illustration and not for limitation, and any naming is only for distinction and does not have any limiting meaning.

[0031] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0032] Embodiment 1 of the spiral pneumatic conveying device provided by the utility model:

[0033] like Figure 1 and Figure 2 As shown, the spiral pneumatic conveying device includes a hopper 1, a storage barrel 2, a conveying pipeline 3, a cyclone 4, a winding structure and a motor 11.

[0034] Among them, a first discharge port is opened at the bottom of the hopper 1, and a feed port is opened at the top of the storage barrel 2, the feed port is connected to the first discharge port, the bottom of the storage barrel 2 is connected to the conveying pipe 3 and the air outlet of the cyclone 4, and the winding structure is a steel wire rope 8, which is installed in the conveying pipe 3 and one end of which is connected to the output end of the motor 11.

[0035] Specifically, the left side of the bottom of the storage barrel 2 is connected to the conveying pipeline 3 , and the right side thereof is connected to the air outlet at the left end of the cyclone 4 , and the right end of the cyclone 4 is connected to the motor 11 .

[0036] Specifically, a storage barrel air inlet 6 is opened on the side of the storage barrel 2 , and a cyclone air inlet 7 is opened on the cyclone 4 .

[0037] Specifically, the motor 11 is an electric motor, a hydraulic motor, or a pneumatic motor.

[0038] The installation of the steel wire rope 8 is described below. A sealing plate 5 is provided at the left end of the conveying pipeline 3, and the left end of the steel wire rope 8 is rotatably mounted on the sealing plate 5, and the right end thereof passes through the cyclone 4 and is connected to the output end of the motor 11, so that the rotation of the steel wire rope 8 is controlled by the motor 11, thereby rotating the material in the conveying pipeline 3, preventing wet, sticky or pasty materials that are easy to clog from accumulating and sticking in the conveying pipeline 3, thereby ensuring the smooth transportation of wet, sticky or pasty materials.

[0039] In order to facilitate the control of the transportation of materials between the hopper 1 and the storage barrel 2, a level meter (not shown in the figure) is installed on the storage barrel 2 to monitor the material level height of the material stored in the storage barrel 2 in real time. An automatic valve 9 is arranged between the first discharge port and the feed port. The automatic valve 9 and the level meter are both connected to a controller (not shown in the figure). The controller is used to receive the material level information measured by the level meter and control the opening and closing of the automatic valve 9 according to the material level information.

[0040] In addition, a conveying hose 10 is sleeved outside the conveying pipe 3, and a second discharge port 12 opening downward is opened at the left end of the conveying pipe 3. The longitudinal section of the second discharge port 12 is a trapezoid, and the upper base length of the trapezoid is greater than the lower base length.

[0041] The working principle of the spiral pneumatic conveying device provided by the utility model is: when the spiral pneumatic conveying device starts to work, the automatic valve 9 opens, and the material enters the storage barrel 2 through the hopper 1. When the level meter detects that the material in the storage barrel 2 reaches the specified inventory of the storage barrel 2, the controller controls the automatic valve 9 to close, and the cyclone air inlet 7 and the storage barrel air inlet 6 simultaneously intake air into the storage barrel 2. At the same time, the wire rope 8 starts to rotate under the drive of the motor 11 to circumvent the material in the conveying pipe 3 to prevent it from accumulating and sticking in the conveying pipe 3. Finally, the material is blown out from the second discharge port 12 along the conveying pipe 3 under the action of gas pressure.

[0042] Embodiment 2 of the spiral pneumatic conveying device provided by the utility model:

[0043] The main difference between it and Example 1 is:

[0044] In Example 1, a conveying hose is sheathed on the outer surface of the conveying pipeline.

[0045] In this embodiment, no other pipeline is installed outside the delivery pipeline.

[0046] Embodiment 3 of the spiral pneumatic conveying device provided by the utility model:

[0047] The main difference between it and Example 1 is:

[0048] In Example 1, the winding structure is a steel wire rope.

[0049] In this embodiment, the orbiting structure is a triangular drill rod or a spiral blade.

[0050] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "left", "right", "length", "top", "bottom", "inside", "outside", etc., which indicate orientation or positional relationships, are based on the orientation or positional relationships shown in the drawings of this specification. They are only for the purpose of facilitating the explanation of the scheme of the utility model and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operate in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as limitations on the scheme of the utility model.

[0051] In addition, in the description of this specification, “plurality” means at least two, for example, two, three or more, etc., unless otherwise clearly and specifically defined.

Claims

1. A spiral pneumatic conveying device, characterized in that: include: A hopper having a first discharge port at the bottom thereof; A material storage cylinder, the top of which is provided with a material inlet connected to the first material outlet, and the bottom of which is connected to a conveying pipeline and an air outlet of the cyclone; A sealing plate is provided at the conveying end of the conveying pipeline; An orbiting structure is installed in the conveying pipeline, one end of which is connected to the sealing plate, and the other end is connected to the output end of the motor; The material storage barrel is provided with a material storage barrel air inlet, the cyclone is provided with a cyclone air inlet, and the conveying end of the conveying pipeline is provided with a second material discharge port opening downward.

2. The screw-type pneumatic conveying device according to claim 1, characterized in that: The material storage barrel is provided with a material level meter for real-time monitoring of the material level height of the material stored in the material storage barrel.

3. The screw-type pneumatic conveying device according to claim 2, characterized in that: An automatic valve is arranged between the first discharge port and the feed port.

4. The screw-type pneumatic conveying device according to claim 3, characterized in that: The material level meter and the automatic valve are both connected to a controller, and the controller is used to receive the material level information measured by the material level meter and control the opening and closing of the automatic valve.

5. The screw pneumatic conveying device according to any one of claims 1 to 4, characterized in that: The winding structure is a triangular drill rod or a wire rope or a spiral blade.

6. The screw pneumatic conveying device according to any one of claims 1 to 4, characterized in that: The conveying pipeline is sheathed with a conveying hose.

7. The screw-type pneumatic conveying device according to any one of claims 1 to 4, characterized in that: The orbiting structure is connected to the motor through the swirler.

8. The screw-type pneumatic conveying device according to claim 7, characterized in that: The motor is an electric motor, a hydraulic motor or a pneumatic motor.

9. The screw pneumatic conveying device according to any one of claims 1 to 4, characterized in that: The longitudinal section of the second discharge port is a trapezoid, and the length of the upper base of the trapezoid is greater than the length of the lower base.

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