CN221190673U

CN221190673U - Air seal device

Info

Publication number: CN221190673U
Application number: CN202323291148.9U
Authority: CN
Inventors: 陈泽
Original assignee: Jiangsu Famsun Intelligent Technology Co Ltd
Current assignee: Jiangsu Famsun Intelligent Technology Co Ltd
Priority date: 2023-12-01
Filing date: 2023-12-01
Publication date: 2024-06-21
Anticipated expiration: 2033-12-01

Abstract

The utility model belongs to the technical field of air-closing devices. An air shutter comprising: the feeding port of the shell is provided with a hopper; the conveying assembly is arranged in the shell; and the material flow correction frame assembly is arranged on the hopper and is used for vertically guiding the materials conveyed by the hopper to the conveying assembly. The utility model solves the technical problems that materials enter a gap between the blades of the existing air-seal device and the shell, and clamping and flattening occur.

Description

Air seal device

Technical Field

The utility model relates to the technical field of air-closing devices, in particular to an air-closing device.

Background

The main function of the air seal device widely used in the fields of pneumatic conveying, ventilation, dust removal and the like is to continuously and timely discharge upstream materials, meanwhile, the pressure in the device is not exposed to the normal pressure environment, the sealing of an outlet is realized, an air channel is not allowed to be formed at the two ends of the inlet and the outlet, then the discharging can be ensured, otherwise, the air flow in the air channel drives the materials to move, and therefore the normal function cannot be realized. In the long-time use process, the gaps between the blades and the shell are continuously enlarged due to rigid abrasion of the blades, and finally air flow at the inlet and the outlet is blown through, so that materials cannot be effectively discharged, and blocking are caused.

At present, a certain gap exists between the blades and the shell before the air seal device on the market leaves the factory, and when small particle materials are conveyed, irregular material flows easily enter the gap between the rotating blades and the shell, so that the conditions of material clamping and flat material appear, and the quality and the attractiveness of a final finished product are affected.

Disclosure of utility model

The utility model aims to provide an air-seal device, which solves the technical problems that materials enter a gap between an existing air-seal device blade and a shell, and clamping and flattening occur.

In order to solve the technical problems, the utility model adopts the following technical scheme that the air shutter comprises:

the feeding port of the shell is provided with a hopper;

The conveying assembly is arranged in the shell;

And the material flow correction frame assembly is arranged on the hopper and is used for vertically guiding the materials conveyed by the hopper to the conveying assembly.

According to the utility model, the material flow correction frame assembly is designed on the hopper above the shell, and the direction and the blanking position of the material flow entering the air shutter are limited, so that the phenomenon of material clamping of the air shutter is greatly reduced.

In order to solve the technical problem how to realize the material flow correction frame assembly, the material flow correction frame assembly adopts the following technical scheme that the material flow correction frame assembly comprises a mounting frame and a conical cover arranged on the mounting frame, wherein the mounting frame is arranged on a hopper, and the conical cover is used for vertically guiding materials conveyed by the hopper to the conveying assembly.

In order to solve the technical problem that materials easily enter a gap between the blade and the shell, the utility model adopts the following technical scheme that the material conveying assembly comprises:

A rotation shaft;

An impeller disposed on the rotation shaft;

The tail ends of the blades of the impeller are provided with anti-clamping sealing assemblies for preventing materials from entering the space between the blades and the shell and sealing between the blades and the shell.

The utility model adopts the anti-clamping sealing component, which not only can improve the sealing performance between the blade and the shell of the air shutter, but also can reduce the gap of the material entering the blade and the cylinder body and reduce the clamping condition.

In order to solve the technical problems that the maintenance of the blade of the air shutter is required to be carried out on the whole air shutter, the time consumption is long and the production efficiency is affected, the utility model adopts the following technical scheme that the anti-clamping component comprises an elastic sealing plate which is detachably arranged at the tail end of the blade and is tangential to the inner wall of the shell; the elastic sealing plate is installed in a direction opposite to the rotation direction of the rotating shaft.

The blade is rotated to the position of the lower discharge hole, and the discharge hole is disassembled and assembled, so that the rubber plate can be disassembled and assembled without opening the shell. The later maintenance is simple, the rigid abrasion of the air closer is reduced, and the maintenance can be completed by replacing the elastic sealing plate.

In order to solve the technical problem of how to mount the elastic sealing plate on the blade, the utility model adopts the following technical scheme that the tail end of the blade is provided with a mounting bracket, and the elastic sealing plate is arranged in the mounting bracket. The installing support welds on the blade to set up the mounting hole, the mounting hole sets up the internal thread, and the elastic sealing plate passes through the bolt to be installed on the installing support. At the same time, the screws are mounted from the outside.

In order to solve the technical problems, the utility model adopts the following technical scheme that an anti-reverse component is arranged on the shell and used for ensuring the unidirectional rotation of the material conveying component and preventing the bidirectional rotation of the material conveying component. If the rotational direction is set to be counterclockwise during operation, the impeller will stop rotating after striking the anti-backup assembly.

In order to solve the technical problem of material residue on the impeller, the utility model adopts the following technical scheme that the tail end of the anti-inversion component is provided with a cleaning component for cleaning the material residue on the impeller. The blade is cleaned when passing through the cleaning assembly on the anti-backup assembly, and the residual cleaning on the blade is completed.

In order to solve the technical problem how to realize the anti-reverse assembly, the utility model adopts the following technical scheme that the anti-reverse assembly is arranged on a feed inlet of the shell, the anti-reverse assembly is a one-way switch hinge, and the rotation direction of the one-way switch hinge is opposite to that of the rotating shaft; the rotation angle of the unidirectional switch hinge is 90 degrees.

In order to solve the technical problems of connection and on-off of the discharge port, the utility model adopts the following technical scheme that the discharge port is arranged on the shell, and the pressure valve component is arranged on the discharge port and used for controlling the connection and on-off of the discharge port.

In order to solve the technical problem how to realize the pressure valve assembly, the utility model adopts the following technical scheme that the pressure valve assembly comprises:

the sealing baffle is hinged on the discharge hole of the shell;

the elastic piece is arranged below the sealing baffle, one end of the elastic piece is arranged on the discharge hole of the shell, and one end of the elastic piece is connected with the sealing baffle.

When the materials are discharged to the discharge hole by the air seal device, when the materials are accumulated to exceed a certain weight, the elasticity of the elastic piece below is overcome, and the materials are continuously discharged under the air seal condition.

Drawings

FIG. 1 is a schematic diagram of a structure of an air shutter of the present utility model;

FIG. 2 is a side view of the present utility model;

FIG. 3 is a schematic view of a structure of an air shutter (including an anti-pinch component) according to an embodiment of the present utility model;

FIG. 4 is a schematic structural view of an anti-pinch component of the air shutter of the present utility model;

FIG. 5 is a schematic view of an anti-backup assembly and cleaning assembly of the air shutter of the present utility model;

FIG. 6 is a schematic diagram showing the working state of the air shutter according to the present utility model;

FIG. 7 is a second schematic diagram of the working state of the air shutter of the present utility model;

fig. 8 is a schematic structural view of an air shutter (including a pressure shutter assembly) according to an embodiment of the present utility model.

In the figure: 10, closing an air duct;

A 100-shell; 101 feed inlet, 102 cylinder, 103 discharge port;

200 a material conveying component; 210 a rotation shaft; 220 impellers; 221 blades; 230 anti-pinch assembly; 240 a driving member;

300 hoppers;

400 stream correction frame assembly; 410 mounting a frame, 420 conical cover;

510 an anti-backup assembly, 520 a cleaning assembly;

600 pressure valve assembly; 610 a sealing barrier; 620 spring.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

Example 1

As shown in fig. 1-8, the air register 10 includes a housing 100, a feed assembly 200, a hopper 300, and a flow correction frame assembly 400.

The shell 100 comprises a feed inlet 101, a silo 102 and a discharge outlet 103 which are arranged from top to bottom. The feed port 101 is provided with a hopper 300. Hopper 300 is tapered.

The hopper 300 is provided with a material flow correcting frame assembly 400, and the material flow correcting frame assembly 400 is used for vertically guiding the material conveyed by the hopper 300 to the conveying assembly 400.

In one embodiment, the stream correction frame assembly 400 includes a mounting frame 410 and a conical cap 420. The mounting frame 410 is placed on the mounting rim of the hopper, and the conical cover 420 is mounted in the center of the mounting frame 410. The cone-shaped cover serves to vertically guide the material transferred from the hopper 300 toward the transfer assembly 400.

A material delivery assembly 200 is mounted within the silo 102. The feed assembly 200 includes a rotatable shaft 210, an impeller 220, and a drive 240. The impeller 220 is mounted on the rotation shaft 210. The impeller 220 comprises a plurality of blades 221 circumferentially distributed. The driving member 240 is used to drive the rotation shaft 210 to rotate. The driving member 240 may be a gear motor, an output shaft of which is coupled to the rotation shaft. The driving member may be a belt transmission mechanism, a chain transmission mechanism, a gear transmission mechanism, or the like.

Because of wear of the blades caused by daily use, the clearance between the blades and the housing becomes large. Finally, the whole set of blades and the main shaft need to be replaced manually. Due to the manual involvement, there is periodicity. And artificial participation, individual difference can produce uncertainty to changing the air shutter blade, can lead to the clearance inconsistent of installation back blade and casing, can't ensure the result of use after the installation. After the frequent use times, if the blades of the air shutter are maintained, the whole air shutter is required to be disassembled and assembled, so that the time is long, and the production efficiency is influenced.

In order to solve the above technical problems, the present utility model designs an anti-pinch sealing assembly 230 at the end of the vane 221 for preventing materials from entering the seal between the vane and the housing and between the vane and the housing.

In one embodiment, the anti-pinch assembly 230 includes an elastic sealing plate 231 removably disposed at the end of the blades 221, the elastic sealing plate 231 disposed tangentially to the inner wall of the silo 102. The elastic sealing plate 231 is mounted in a direction opposite to the rotation direction of the rotation shaft 210. The elastic sealing plate 231 on the vane 221 can prevent the material from entering the gap between the vane and the silo 102 of the shell, so as to prevent the material from being clamped. The elastic sealing plate 231 is preferably a silicone plate or a rubber plate.

In one embodiment, the ends of the blades 221 are provided with mounting brackets 232, and the mounting brackets 232 have elastomeric sealing plates 231 disposed therein. Specifically, the mounting bracket 232 is welded to the blade, and a mounting hole is provided, the mounting hole is provided with an internal thread, and the elastic sealing plate 231 is mounted to the mounting bracket 232 by a bolt. Simultaneously, the screw is installed from the outside, realizes changing when the elastic sealing plate 231, rotates the blade to below discharge gate position, carries out the dismouting from the discharge gate to need not to open the casing and just can carry out the dismouting rubber slab. The later maintenance is simple, the rigid abrasion of the air closer is reduced, and the maintenance can be completed by replacing the elastic sealing plate. The manufacturing cost of the air shutter is reduced, the air shutter can be manufactured through a simple manufacturing process, and the manufacturing process does not need high-precision tolerance to ensure the gap tolerance between the blades and the silo wall.

The different relative positions of the elastomeric seal plate 231 and the silo 102 may also have different effects. When in the relative position i, as shown in fig. 6, the elastic sealing plate 231 is tangent to the silo wall, the elastic sealing plate 231 has no force with the silo wall and is not in direct contact with the silo wall, and the function of preventing materials from entering between the impeller and the silo wall is achieved. When in the relative position II, the radian of the silo wall presses the elastic sealing plate 231 inwards to form an elastic seal, so that the sufficient sealing and air-sealing performance of the air-seal device are ensured.

In one embodiment, an anti-backup assembly 510 is provided on the housing for ensuring unidirectional rotation of the feed assembly and preventing bi-directional rotation of the feed assembly. Specifically, the anti-reverse component 510 is installed at the lower part of the feed inlet 101 of the housing, and the anti-reverse component 510 is preferably a unidirectional switch hinge, and the rotation direction of the unidirectional switch hinge is opposite to that of the rotating shaft; the rotation angle of the unidirectional switch hinge is 90 degrees. Unidirectional switch hinges are known in the art.

In one embodiment, the anti-backup assembly 510 terminates with a cleaning assembly 520 for cleaning residual material on the impeller. The cleaning assembly 520 is preferably bristles.

As the driving member 240 drives the rotation shaft 210 and the impeller 220 to rotate clockwise, the blades 221 are cleaned when passing through the cleaning assembly 520 on the anti-reverse assembly 510, and the residual cleaning on the blades 221 is completed. While the anti-backup assembly 510 serves to prevent the spin-up phenomenon. If the rotation direction is set to be counterclockwise in operation, the impeller 220 stops rotating after hitting the one-way hinge.

In one embodiment, a pressure valve assembly 600 is provided on the discharge port for controlling the connection and connection of the discharge port.

The pressure shutter assembly 600 includes a sealing barrier 610 and an elastic member 620.

The sealing baffle 610 is hinged to the outlet 103 of the housing. Specifically, as shown in fig. 8, the upper end of the sealing baffle 610 is connected with the outlet of the air shutter through a hinge, and the sealing baffle can be opened and closed up and down along the hinge to control the connection and the on-off of the air shutter and downstream equipment.

The elastic member 620 is located under the sealing barrier 610. The elastic member 620 is horizontally arranged, one end of the elastic member 620 is arranged on the discharge hole 103 of the shell, and one end of the elastic member 620 is connected with the bottom surface of the sealing baffle 610. The elastic member 620 is preferably a spring.

When the materials are discharged to the discharge port by the air seal device, when the materials are accumulated to exceed a certain weight, the elastic force of the lower elastic piece 620 is overcome, and the materials are continuously discharged under the air seal condition.

The final wind-off effect is good or bad, depending on the elasticity K value of the spring. The larger the K value is, the better the wind-off effect is, but the close attention is paid to the relation between the K value and the weight threshold value of the falling material. If the K value is too large, when a certain weight of materials is reached, the sealing baffle still cannot rotate to discharge the materials, and the problem of blocking inside the air seal device can be caused. The smaller the K value, the smaller the probability of blocking, but the weaker the windbreak performance.

According to the utility model, under the combined action of the material flow correction frame assembly and the material clamping prevention assembly, the material flow can relatively vertically enter the air seal device, and the material clamping condition is reduced in the stable and continuous operation process; the sealing performance is good, and the discharging hole is smooth and free from leaving residual materials.

The above embodiments are only for illustrating the technical features and concepts of the present utility model, and are intended to enable those skilled in the art to understand the present utility model and implement it, and are not intended to limit the scope of the present utility model, and all equivalent changes or modifications according to the spirit and embodiments of the present utility model should be included in the scope of the present utility model.

Claims

1. The air seal ware, characterized by includes:

the feeding port of the shell is provided with a hopper;

The conveying assembly is arranged in the shell;

And the material flow correction frame assembly is arranged on the hopper and is used for vertically guiding the materials conveyed by the hopper to the material conveying assembly.

2. The air seal of claim 1, wherein the flow correction frame assembly comprises a mounting frame and a conical cover disposed on the mounting frame, the mounting frame being disposed on the hopper, the conical cover being configured to vertically guide material conveyed from the hopper to the material conveying assembly.

3. The air register of claim 1, wherein the feed assembly comprises:

A rotation shaft;

An impeller disposed on the rotation shaft;

4. A wind trap according to claim 3 wherein the anti-pinch seal assembly comprises an elastomeric seal plate removably disposed at the distal end of the vane, the elastomeric seal plate being disposed tangentially to the inner wall of the housing; the elastic sealing plate is installed in a direction opposite to the rotation direction of the rotating shaft.

5. The air seal of claim 4 wherein the distal end of the vane is provided with a mounting bracket and the resilient seal plate is disposed within the mounting bracket.

6. A wind trap according to claim 3, wherein an anti-backup assembly is provided on the housing for ensuring unidirectional rotation of the feed assembly and preventing bi-directional rotation of the feed assembly.

7. The air seal of claim 6 wherein a cleaning assembly is provided at the end of the anti-backup assembly for cleaning residual material on the impeller.

8. The air seal according to claim 7, wherein the anti-backup assembly is provided on the feed port of the housing, the anti-backup assembly being a one-way switch hinge having a rotation direction opposite to a rotation direction of the rotation shaft; the rotation angle of the unidirectional switch hinge is 90 degrees.

9. The air seal according to claim 1, wherein a discharge port is formed in the housing, and a pressure valve assembly is arranged on the discharge port for controlling connection and disconnection of the discharge port.

10. The air register of claim 9, wherein said pressure valve assembly comprises:

the sealing baffle is hinged on the discharge hole of the shell;