CN218950522U

CN218950522U - Dust suppression device for bulk cargo loading

Info

Publication number: CN218950522U
Application number: CN202320007278.6U
Authority: CN
Inventors: 钱雨; 陈飞; 吕岩峰; 王飞; 胡起华; 郑亿青
Original assignee: Myande Group Co Ltd
Current assignee: Myande Group Co Ltd
Priority date: 2023-01-03
Filing date: 2023-01-03
Publication date: 2023-05-02
Anticipated expiration: 2033-01-03

Abstract

The utility model discloses a dust suppression device for bulk cargo loading, which comprises a central cylinder connected below a fixed support, wherein a feeding chute is inserted into the center of the top of the central cylinder, and the dust suppression device further comprises a hopper cylinder body: the top cover is connected with the outer wall of the central cylinder through flexible connection, and the lower end of the top cover is provided with a conical discharge hole; and (3) plug: the material flow flows out from the circumferential gap between the periphery of the plug and the conical discharge hole when materials are stored in the hopper cylinder body; elastic suspension mechanism: the hopper cylinder body is elastically suspended below the fixed support, and when the material in the hopper cylinder body is discharged and cleaned, the elasticity of the elastic suspension mechanism enables the hopper cylinder body to be lifted up, and the conical discharge hole is sealed by the plug; retractable dust cover: the upper end is wrapped around the periphery of the hopper cylinder, and the lower end covers the material column and extends into the carriage. The dust suppression device of bulk cargo loading can greatly reduce the escape dust of bulk particulate materials during loading, and can effectively prevent the influence of hall wind.

Description

Dust suppression device for bulk cargo loading

Technical Field

The utility model relates to a conveying machine for granular materials such as bulk grains and meal, in particular to a dust suppression device for bulk loading, and belongs to the technical field of bulk loading auxiliary facilities.

Background

When the granular materials such as bulk grains, soybeans, meal and the like are transported, loading is firstly carried out. It is well known that bulk materials are easy to lift a large amount of dust when loaded through a chute and the like, so that the bulk materials pollute the surrounding environment and are also a great threat to the physical and psychological health of field operators.

In order to reduce the dust diffusion during bulk material loading, loading is generally performed through a telescopic chute and a dust suppression hopper in the prior art, and certain problems still exist respectively, and the analysis is as follows:

1. telescopic chute: the telescopic chute adopts a double-layer sleeve structure and consists of a chute barrel and a dust cover. The material passes through in the swift current section of thick bamboo, and the dust cover overcoat is on the swift current section of thick bamboo. Because the material needs to pass through the chute, the chute needs to be adjusted in size according to the yield, and the wear-resisting requirement needs to be met. For the loading requirement of large yield, the caliber of the telescopic chute is quite large, and the cost investment is high. When the material rubs with the chute, a large amount of dust is generated, and even if a dust cover exists, larger dust overflows into the air to cause dust pollution;

2. dust suppression hopper: the material is loaded through the dust suppression hopper, and the discharge port is sealed by the plug in the material sliding gap, so that a large amount of dust overflow can be reduced. Because the dust suppression hopper is loaded, the car needs to move back and forth, and the loading position is always in an open channel, and the situation of passing through the hall wind exists. After the material column from the dust suppression hopper is blown by wind, part of fine dust overflows, and dust pollution can still be caused. When the bin is hit by the bin, part of fine dust can be diffused, and dust pollution is caused.

Disclosure of Invention

The utility model aims to overcome the problems in the prior art, and provides a dust suppression device for bulk material loading, which can greatly reduce dust escaping during loading bulk particle materials and can effectively prevent the influence of hall wind.

In order to solve the technical problems, the dust suppression device for bulk cargo loading comprises a central cylinder connected below a fixed support, a feeding chute is inserted into the top center of the central cylinder, and the dust suppression device further comprises:

hopper barrel: the top cover is connected with the outer wall of the central cylinder through flexible connection, and the lower end of the top cover is provided with a conical discharge hole;

and (3) plug: the material flow flows out from the circumferential gap between the periphery of the plug and the conical discharge hole when materials are stored in the hopper cylinder body;

elastic suspension mechanism: the hopper cylinder body is elastically suspended below the fixed support, and when the material in the hopper cylinder body is discharged and cleaned, the elasticity of the elastic suspension mechanism enables the hopper cylinder body to be lifted up, and the conical discharge hole is sealed by the plug;

retractable dust cover: the upper end is wrapped around the periphery of the hopper cylinder, and the lower end covers the material column and extends into the carriage.

As an improvement of the utility model, the upper end of the telescopic dust cover is connected with the lower port of the fixed dust cover, the upper end of the feeding chute extends out of the center of the top cover of the fixed dust cover, and the side wall of the fixed dust cover is provided with a negative pressure air suction port.

As a further improvement of the utility model, the telescopic dust cover comprises a dust-proof oilcloth fixed with a plurality of steel rings, the steel wire rope is fixed with each steel ring, and the winding and unwinding of the dust-proof oilcloth are driven by the lifter.

As a further improvement of the utility model, the lower port of the telescopic dust cover is provided with a dust curtain in soft contact with the material.

As a further improvement of the utility model, a level gauge for detecting the loading height is arranged at the lower port of the telescopic dust cover.

As a further improvement of the utility model, the elastic suspension mechanism is a spring and is uniformly suspended on the periphery of the hopper cylinder.

As a further improvement of the utility model, the periphery of the hopper cylinder is also connected with the fixed bracket through uniformly distributed anti-falling chains.

As a further improvement of the utility model, three or four steel wire ropes are symmetrically arranged, each steel wire rope is respectively wound on a winding wheel after being turned by a guide wheel, each winding wheel is fixed on the same winding shaft, and the winding shaft is driven by the lifter.

Compared with the prior art, the utility model has the following beneficial effects: the whole process that the stock pole falls into in the carriage from the feeding elephant trunk is all sealed, even there is the hall wind, and the excessive dust is extremely limited yet, improves the operational environment in loading workshop greatly, is favorable to protecting workman's physical and mental health, has reduced the operation dependence to operating personnel, has improved bulk cargo loading's efficiency again.

Drawings

The utility model will now be described in further detail with reference to the drawings and the detailed description, which are provided for reference and illustration only and are not intended to limit the utility model.

FIG. 1 is a front view of a dust suppression device for bulk loading of the present utility model;

FIG. 2 is a cross-sectional view of the present utility model;

FIG. 3 is a front view of the lift system of the present utility model;

FIG. 4 is a right side view of FIG. 3;

FIG. 5 is a view of the telescoping shield of the present utility model extended into position;

in the figure: 1. a feed chute; 2. a central cylinder; 3. soft connection; 4. a hopper cylinder; 5. a plug; 6. an inner bracket; 7. fixing a dust cover; 7a, a negative pressure air suction port; 8. a retractable dust cover; 8a, a steel ring; 9. a level gauge; 10. a dust-proof curtain; 11. a spring; 12. an anti-falling chain; 13. a lifter; 14. a reel; 15. a winding shaft; 16. a guide wheel; 17. a wire rope; 18. and (5) fixing the bracket.

Detailed Description

In the following description of the present utility model, the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present utility model and simplifying the description, and do not mean that the device must have a specific orientation.

The utility model is further described with reference to the following detailed drawings in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the implementation of the utility model easy to understand.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

As shown in fig. 1 to 5, the dust suppression device of the bulk cargo loading vehicle of the utility model comprises a feeding chute 1, a central cylinder 2, a hopper cylinder 4, a plug 5, a fixed dust cover 7, a telescopic dust cover 8 and a lifting mechanism. The top cover of the central cylinder 2 is fixedly connected below the fixed bracket 18, and the feeding chute 1 is inserted from the center of the top cover of the central cylinder 2. The upper end of the hopper cylinder body 4 covers the periphery of the central cylinder 2, the top cover of the hopper cylinder body 4 is connected with the outer wall of the central cylinder 2 through the flexible connection 3, and the central cylinder 2 is sealed with the fixed bracket 18, so that the floating capacity of the hopper cylinder body 4 can be maintained, and dust overflow can be prevented.

The lower extreme of hopper barrel 4 is equipped with the toper discharge gate, and the inner chamber of hopper barrel 4 is equipped with inner support 6, and the upper end of inner support 6 is fixed in the top cap below of central drum 2, and the lower extreme of inner support 6 is fixed with end cap 5, and end cap 5 is spindle-shaped for closing the toper discharge gate.

Lifting lugs are uniformly arranged on the periphery of the hopper cylinder 4, and are respectively suspended below the fixed support 18 through elastic suspension mechanisms, which can be springs 11. The initial relative position of the plug 5 and the hopper cylinder 4 can be adjusted through the bolt adjustment of the end head of the spring 11. When the tension of the spring 11 is balanced with the empty weight of the hopper cylinder 4, the outer edge of the plug 5 is attached to the inner wall of the conical discharge hole of the hopper cylinder 4, and the conical discharge hole is closed.

The height of the plug 5 is fixed, when materials are stored in the hopper cylinder 4, the added weight of the materials enables the hopper cylinder 4 to overcome the tension of the spring 11 and sink, the gap between the hopper cylinder 4 and the plug 5 is enlarged, an annular discharge hole is formed, and the materials flow out from the annular gap between the periphery of the plug 5 and the conical discharge hole. The size of the circumferential seam width and the material yield tend to balance under the influence of the tension of the spring 11, and a certain material height exists in the hopper cylinder 4.

When the material flow of the feeding chute 1 is large, the material level in the hopper cylinder 4 is relatively high, the width of the circular seam is increased, and the discharging is quickened. When the material flow of the feeding chute 1 is small, the material level in the hopper cylinder 4 is relatively low, the width of the circular seam is narrowed, and the discharging is slowed down. When the material stored in the hopper cylinder 4 is discharged and cleaned, the elasticity of the elastic suspension mechanism enables the hopper cylinder 4 to be lifted up, the conical discharge hole is sealed by the plug 5 again, and dust in the hopper cylinder 4 is prevented from overflowing. The dust of the materials is controlled in the hopper cylinder 4, and the dust suppression effect is achieved.

The periphery of the hopper cylinder 4 is also connected with a fixed bracket 18 through uniformly distributed anti-falling chains 12, so that the spring 11 is prevented from losing efficacy, and the hopper cylinder 4 is prevented from falling off.

The center cylinder 2, the hopper cylinder 4, the fixed support 18, the spring 11, the anti-falling chain 12 and the lifting mechanism are covered inside the fixed dust cover 7, the lower end of the fixed dust cover 7 is connected with the telescopic dust cover 8, and the upper end of the feeding chute 1 extends out of the center of the top cover of the fixed dust cover 7.

The side wall of the fixed dust cover 7 is provided with a negative pressure air suction port 7a which is externally connected with a draught fan and a dust removing device, so that micro negative pressure is formed in the dust cover, and dust is further prevented from overflowing.

The telescopic dust cover 8 is made of dust-proof oil cloth or similar materials, the dust-proof oil cloth is sewn into a cylinder shape, a plurality of steel rings 8a are uniformly fixed along the height direction of the dust-proof oil cloth, a steel wire rope 17 is fixed with each steel ring 8a, and the winding and unwinding of the dust-proof oil cloth are driven by the lifter 13. Three or four steel wires 17 are symmetrically arranged, each steel wire 17 is wound on the winding wheel 14 after being turned by the guide wheel 16, each winding wheel 14 is fixed on the same winding shaft 15, and the winding shaft 15 is driven by the lifter 13. The lifter 13 comprises a lifting speed reducer driven by a lifting motor, the lifting speed reducer drives the winding shaft 15 to rotate, and the winding shaft 15 drives each winding wheel 14 to synchronously rotate, so that the synchronism of lifting and lowering of the periphery of the telescopic dust cover 8 is ensured.

When loading, the carriage of the vehicle reaches the position right below the hopper cylinder 4, and the lifter 13 releases the wire rope 17 to enable the lower end of the telescopic dust cover 8 to fall into the carriage. Then open the discharge gate, the material flows from feeding elephant trunk 1, falls in hopper barrel 4, and hopper barrel 4 sinks, and spring 11 is elongated, and the material flows from the annular gap between toper discharge gate and end cap 5, forms the stock column between toper discharge gate and carriage, and flexible dust cover 8 parcel is at the stock column periphery, has both prevented the dust excessive, has guaranteed the loading safety again.

The lower port of the telescopic dust cover 8 is provided with a dust curtain 10 in soft contact with materials, the telescopic dust cover 8 is not in contact with the materials, and the telescopic dust cover is only used as a dust cover, so that the cross-hall wind can be effectively prevented.

A material level gauge 9 for detecting the loading height is arranged at the lower port of the telescopic dust cover 8, and the height of the telescopic dust cover 8 is automatically controlled according to the loading material level. The lower port of the telescopic dust cover 8 is firstly lowered to the lower limit, the material is released by opening the gate, after the material level meter 9 contacts the material, the signal of the material level meter 9 is output, the lifter 13 winds the steel wire rope 17, the lower port of the telescopic dust cover 8 is pulled to rise, the lifting is stopped after the lifting is up to the preset time (the time is adjustable), and the process is repeated. When the telescopic dust cover 8 reaches the upper limit, the vehicle is moved, the telescopic dust cover 8 is put down to the lower limit again, and the automatic control of loading is finally realized through the material level control again.

The foregoing description of the preferred embodiments of the present utility model illustrates and describes the basic principles, main features and advantages of the present utility model, and is not intended to limit the scope of the present utility model, as it should be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments. In addition to the embodiments described above, other embodiments of the utility model are possible without departing from the spirit and scope of the utility model. The utility model also has various changes and improvements, and all technical schemes formed by adopting equivalent substitution or equivalent transformation fall within the protection scope of the utility model. The scope of the utility model is defined by the appended claims and equivalents thereof. The technical features of the present utility model that are not described may be implemented by or using the prior art, and are not described herein.

Claims

1. The utility model provides a dust suppression device of bulk cargo loading, includes the central drum of connection in the fixed bolster below, the top center of central drum has pegged graft and has the feed elephant trunk, its characterized in that still includes:

2. The dust suppression device for bulk cargo loading of claim 1, wherein: the upper end of flexible dust cover is connected at the lower port of fixed dust cover, the upper end of feeding elephant trunk stretches out from the top cap center of fixed dust cover, the lateral wall of fixed dust cover is equipped with negative pressure inlet scoop.

3. The dust suppression device for bulk cargo loading of claim 1, wherein: the telescopic dust cover comprises a dust-proof oil cloth fixed with a plurality of steel rings, the steel wire ropes are fixed with the steel rings, and the dust-proof oil cloth is driven to be retracted and released through the lifter.

4. A dust suppression device for bulk cargo loading as recited in claim 2, wherein: the lower port of the telescopic dust cover is provided with a dust curtain in soft contact with the material.

5. A dust suppression device for bulk cargo loading as recited in claim 2, wherein: and a material level gauge for detecting the loading height is arranged at the lower port of the telescopic dust cover.

6. The dust suppression device for bulk cargo loading of claim 1, wherein: the elastic suspension mechanism is a spring and is uniformly suspended on the periphery of the hopper cylinder.

7. The dust suppression device for bulk cargo loading of claim 1, wherein: the periphery of the hopper cylinder body is also connected with the fixed support through uniformly distributed anti-falling chains.

8. A dust suppression apparatus for bulk material loading as set forth in claim 3 wherein: the steel wire ropes are symmetrically provided with three or four steel wire ropes, each steel wire rope is wound on a winding wheel after being respectively turned by a guide wheel, each winding wheel is fixed on the same winding shaft, and the winding shaft is driven by the lifter.