Dust removal mechanism for pneumatic conveying device

Abstract

The utility model relates to the technical field of dust removal devices, in particular to a dust removal mechanism for a pneumatic conveying device. According to the technical scheme, the device comprises a material conveying pipe and a material collecting box arranged at the output end of the material conveying pipe, an air pipe is installed at the upper end of the material collecting box, the device further comprises a discharging pipe connected to the lower end of the material collecting box, and a dust removal piece is arranged on the side wall of the output end of the discharging pipe; and the dust removal piece comprises a dust collection cover connected to the side wall of the discharging pipe in a sliding mode, the bottom end of the dust collection cover is fixedly connected with an annular pad, and the dust collection pipe is connected with a dust remover. The dust removal piece is arranged on the side wall of the discharging pipe, when the discharging pipe is in a discharging state, the dust collection cover covers the opening end of the material receiving tank, and the annular pad is tightly attached to the outer side wall of the end opening of the material receiving tank, so that the dust collection cover and the opening part of the material receiving tank form a sealed state, and dust is prevented from being raised outwards in the discharging process; dust concentrated in the dust collecting cover is sucked away through the dust remover, so that subsequent treatment is facilitated; and environmental pollution is effectively avoided in the material conveying process.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of dust removal devices, in particular to a dust removal mechanism for a pneumatic conveying device. BACKGROUND

[0002] The pneumatic conveying device is a device for conveying particulate or powder materials in a sealed pipeline by using the energy of airflow, and is widely applied to multiple fields. The basic principle of the pneumatic conveying device is to mix airflow and materials, so that the materials move in the pipeline, thereby realizing long-distance and high-efficiency conveying.

[0003] The existing pneumatic conveying device can cause environmental pollution in the process of conveying materials (the process of discharging materials) because a small amount of material dust is raised due to the fact that the discharging pipe cannot be completely attached to the external material receiving barrel.

[0004] Therefore, the application provides a dust removal mechanism for a pneumatic conveying device. CONTENT OF THE UTILITY MODEL

[0005] The application aims at the technical problems in the background art and provides a dust removal mechanism for a pneumatic conveying device.

[0006] The technical scheme of the application is a dust removal mechanism for a pneumatic conveying device, which comprises a material conveying pipe and a material collecting box arranged at the output end of the material conveying pipe, and the upper end of the material collecting box is provided with an air pipe.

[0007] A discharging pipe is connected to the lower end of the material collecting box, and the side wall of the output end of the discharging pipe is provided with a dust removal part.

[0008] The dust removal part comprises a dust collecting cover which is slidingly connected to the side wall of the discharging pipe, the bottom end of the dust collecting cover is fixedly connected with an annular pad, the side wall of the dust collecting cover is connected with a dust suction pipe, and the dust suction pipe is connected with a dust collector.

[0009] Preferably, the upper end edge of the annular pad is fixedly connected with a supporting ring, the side wall of the dust collecting cover is fixedly connected with a plurality of supporting rods, and the bottom ends of the plurality of supporting rods are fixedly connected with the supporting ring.

[0010] Preferably, the bottom end of the material collecting box is connected with a mounting plate, the lower end of the mounting plate is connected with a supporting cover, the bottom end of the supporting cover is provided with a pair of air cylinders, and the telescopic ends of the two air cylinders are fixedly connected with the dust collecting cover.

[0011] Preferably, a valve is arranged on the discharging pipe, a discharging mechanism is arranged in the material collecting box, and the discharging mechanism is controlled by a discharging motor.

[0012] Preferably, the dust collector is installed at the lower end of the mounting plate, and one end of the dust collector is provided with a dust collection box which is detachably connected with the dust collector.

[0013] Preferably, the bottom end side wall of the discharging pipe is fixedly connected with a limiting ring for limiting the sliding of the dust collection cover.

[0014] Preferably, the annular pad is made of silica gel, and the dust suction pipe is a hose.

[0015] Compared with the prior art, the application has the following beneficial technical effects:

[0016] The application sets the dust removal member on the side wall of the discharging pipe, when the discharging pipe is in the discharging state, the dust collection cover is arranged on the port end of the receiving tank, and the annular pad is tightly attached to the outer side wall of the port of the receiving tank, so that the dust collection cover and the port of the receiving tank form a sealed state, which avoids the material (dust) from being blown outward during discharging and concentrates the dust in the dust collection cover for being sucked away by the dust collector for subsequent treatment, and effectively avoids environmental pollution during material conveying.

[0017] The support ring is fixedly connected at the upper end edge of the annular pad, and the annular pad and the port of the receiving tank are completely attached under the positioning action of the plurality of support rods. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a perspective view of a dust removal mechanism for a pneumatic conveying device;

[0019] Figure 2 is a bottom structure schematic view of the material collecting tank in the application;

[0020] Figure 3 is a structure schematic view of the dust removal member in the application;

[0021] Figure 4 is a sectional view of the dust collection cover in the application.

[0022] Reference signs: 1, material conveying pipe; 2, feeding pipe; 3, material collecting tank; 4, discharging motor; 5, air pipe; 6, discharging pipe;

[0023] 7, dust removal member; 701, dust collection cover; 702, annular pad; 703, support ring; 704, support rod; 705, dust suction pipe; 706, air cylinder;

[0024] 8, limiting ring; 9, dust collector; 10, mounting plate; 11, support cover. DETAILED DESCRIPTION

[0025] The technical solution of the application is further described in detail below in combination with the drawings and specific embodiments.

[0026] The components of the application embodiments described and illustrated herein can be arranged and designed in a wide variety of different configurations. Therefore, the following detailed description of the application, read with reference to the accompanying drawings, is not intended to limit the scope of the application as claimed.

[0027] All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative labor shall fall within the scope of protection of the present application.

[0028] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] Embodiments

[0031] As Figures 1-4 shown, the dust removal mechanism for the pneumatic conveying device provided by the present application comprises a material conveying pipe 1 and a material collecting box 3 arranged at the output end of the material conveying pipe 1. The upper end of the material collecting box 3 is provided with a gas pipe 5, and a valve is arranged on the gas pipe 5. The valve on the gas pipe 5 can be opened regularly according to the demand of discharging material to discharge the gas in the material collecting box 3. One end of the material conveying pipe 1 is connected with a gas compressor, and a feeding pipe 2 is connected to the side wall of the material conveying pipe 1. The material to be conveyed enters the material conveying pipe 1 through the feeding pipe 2. A discharging mechanism is arranged in the material collecting box 3, and the discharging mechanism is controlled by a discharging motor 4. The discharging motor 4 is arranged at the upper end of the material collecting box 3. The discharging mechanism is composed of a spiral material conveying shaft and a spiral blade. The spiral blade is fixedly connected to the side wall of the spiral material conveying shaft. The output shaft of the discharging motor 4 is fixedly connected to the upper end of the spiral material conveying shaft.

[0032] Further comprising a discharging pipe 6 connected to the lower end of the aggregate tank 3, a valve is installed on the discharging pipe 6, and a dust removal part 7 is arranged on the side wall of the output end of the discharging pipe 6. The arrangement of the dust removal part 7 can avoid the material (dust) from being raised during the discharging process.

[0033] Specifically, the dust removal part 7 comprises a dust collecting cover 701 slidably connected to the side wall of the discharging pipe 6, the bottom end of the discharging pipe 6 is fixedly connected with a limiting ring 8 for limiting the sliding of the dust collecting cover 701. The bottom end of the dust collecting cover 701 is fixedly connected with an annular pad 702, the side wall of the dust collecting cover 701 is connected with a dust suction pipe 705, and the dust suction pipe 705 is connected with a dust collector 9. The upper end edge of the annular pad 702 is fixedly connected with a support ring 703, the side wall of the dust collecting cover 701 is fixedly connected with a plurality of support rods 704, and the bottom ends of the plurality of support rods 704 are fixedly connected with the support ring 703. The support ring 703 plays a role of multidirectional positioning for the annular pad 702, so that the annular pad 702 keeps complete adhesion with the outside of the mouth of the receiving tank. The bottom end of the aggregate tank 3 is connected with a mounting plate 10, the lower end of the mounting plate 10 is connected with a support cover 11, and a pair of air cylinders 706 is installed at the bottom end of the support cover 11. The extension ends of the two air cylinders 706 are fixedly connected with the dust collecting cover 701.

[0034] Specifically, the dust collector 9 is installed at the lower end of the mounting plate 10, one end of the dust collector 9 is provided with a dust collecting box, the dust collecting box is detachably connected with the dust collector 9, and the dust collecting box is threadedly connected with the side wall of the dust collector 9.

[0035] It should be noted that the annular pad 702 is made of silica gel material and has good adhesion and sealing effect, and the dust suction pipe 705 is a flexible pipe, and the dust suction pipe 705 still keeps the effect of continuous dust suction when the dust collecting cover 701 slides up and down.

[0036] The working principle of the embodiment is as follows: before conveying the material, the output end of the discharging pipe 6 is inserted into the mouth end of the external receiving tank, and then the two air cylinders 706 are started to drive the extension ends of the two air cylinders 706 to move the dust collecting cover 701 downward, so that the annular pad 702 is adhered to the outside of the side wall of the mouth end of the receiving tank, which can avoid the material (dust) from being raised outward during the discharging process of the discharging pipe 6, thereby avoiding air pollution. In the present application, one end of the conveying pipe 1 is connected with an external gas compressor, the material enters the conveying pipe 1 through the feeding pipe 2 and is input into the aggregate tank 3 under the action of the gas compressor. The discharging motor 4 is started, the output shaft of the discharging motor 4 rotates to drive the spiral conveying shaft to rotate, so that the material in the aggregate tank 3 is conveyed into the discharging pipe 6 (the valve on the discharging pipe 6 is opened), and the material is discharged through the discharging pipe 6.

[0037] In the process of discharging, a small amount of dust is raised and concentrated in the dust hood 701, and at the same time, the dust collector 9 is started to suck the dust in the dust hood 701 through the dust suction pipe 705. The negative pressure suction force of the dust collector 9 is small, which does not affect the normal discharging of the discharging pipe 6 (the discharging pipe 6 is inserted into the inside of the receiving tank). The sucked dust is concentrated in the dust collection box on one side of the dust collector 9, and the dust collection box can be periodically disassembled and cleaned.

[0038] The above specific embodiments are only preferred embodiments of the present application, and based on the technical solutions of the present application and the related inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations on the above specific embodiments; the above specific embodiments are only an explanation of the present application, and not a limitation of the present application.

Claims

1. A dust removal mechanism for a pneumatic conveying device, comprising a conveying pipe (1) and a material collecting box (3) arranged at the output end of the conveying pipe (1), and a gas pipe (5) is arranged at the upper end of the material collecting box (3), characterized in that, Also include: The lower end of the aggregate tank (3) is connected with the discharge pipe (6), the output end side wall of the discharge pipe (6) is provided with dust removal part (7); The dust removal part (7) includes dust cover (701) which is slidingly connected with the side wall of the discharge pipe (6), the bottom end of the dust cover (701) is fixedly connected with annular pad (702), the side wall of the dust cover (701) is connected with dust suction pipe (705), the dust suction pipe (705) is connected with dust collector (9).

2. The dust removing mechanism for a pneumatic conveying device according to claim 1, wherein The upper end edge of the annular pad (702) is fixedly connected with support ring (703), the side wall of the dust cover (701) is fixedly connected with a plurality of support rods (704), the bottom end of the plurality of support rods (704) is fixedly connected with the support ring (703).

3. The dust removing mechanism for a pneumatic conveying device according to claim 2, wherein The bottom end of the aggregate tank (3) is connected with mounting plate (10), the lower end of the mounting plate (10) is connected with support cover (11), the bottom end of the support cover (11) is mounted with a pair of air cylinders (706), the telescopic end of the two air cylinders (706) is fixedly connected with the dust cover (701).

4. The dust removing mechanism for a pneumatic conveying device according to claim 1, wherein The discharge pipe (6) is installed with valve, the aggregate tank (3) is provided with discharging mechanism, the discharging mechanism is controlled by discharging motor (4).

5. The dust removing mechanism for a pneumatic conveying device according to claim 1, wherein The dust collector (9) is installed at the lower end of the mounting plate (10), one end of the dust collector (9) is provided with dust collection box, the dust collection box is detachably connected with the dust collector (9).

6. The dust removing mechanism for a pneumatic conveying device according to claim 1, wherein The bottom end side wall of the discharge pipe (6) is fixedly connected with limiting ring (8), which is used for limiting the sliding of the dust cover (701).

7. The dust removing mechanism for a pneumatic conveying device according to claim 2, wherein The annular pad (702) is made of silica gel, and the dust suction pipe (705) is a hose.

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