Dust escape prevention device and discharging equipment comprising same

Abstract

The invention provides a dust escape prevention device capable of being widely adapted, relatively economical and applicable and capable of effectively preventing dust escape of a discharge hopper and discharge equipment comprising the dust escape prevention device, the dust escape prevention device is used for preventing dust escape pollution caused when materials are discharged to a material receiving space of a moving tool used for conveying the materials through the hopper, and the dust escape prevention device is characterized by comprising a moving frame and a dust escape prevention device, the movable frame is arranged around the outer side of the hopper, and preferably, the movable frame is arranged around the lower end part of the outer side of the hopper; the dustproof cover is arranged on the outer side of the movable frame in a surrounding mode, at least the top of the dustproof cover and the outer side of the movable frame are sealed, the movable frame and the dustproof cover can vertically or horizontally move relative to the hopper, and when the movable frame vertically or horizontally moves towards the material receiving space, at least part of the movable frame can enter the material receiving space in the moving process and is sealed with the hopper; and meanwhile, the dustproof cover can at least cover the top of the gap between the movable frame and the material receiving space so as to prevent dust from escaping from the top of the gap.

Description

technical field [0001] The invention belongs to the field of environmental protection, and in particular relates to an anti-escape device capable of preventing discharge dust from escaping and a discharge device comprising the same. Background technique [0002] At present, ports, mines, power plants, steel mills and many other places have discharge hoppers for transshipment of bulk materials. It is used to grab the bulk materials of ships and other transportation tools or storage yards through grab buckets, and then distribute them into the carriages of transportation vehicles with relatively small transportation volume through the unloading hopper, so as to realize the transfer to various use destinations. [0003] Many loose materials have the problem of dust escaping in the process of distributing and loading them to the transport vehicles through the unloading hopper, which has caused great pollution to the environment of the dock yard. At home and abroad, for bulk cem...

AI Technical Summary

Problems solved by technology

[0006] (2) Use the method of dry fog to suppress dust to install a dry fog device on the upper part of the discharge hopper (such as figure 1 ): This method can only solve the upper part of the unloading hopper because it is installed on the upper part of the unloading hopper, and does not solve the problem of fugitive dust in the lower part

The cost is too high, the method is too primitive and backward

Moreover, the dust concentration in the sealed building is higher, which has a serious impact on the health of the workers in the building, such as drivers.

Therefore, building the unloading hopper in a sealed room is not a scientific and economical method for preventing dust from the unloading hopper;

[0010](5) Use a completely sealed powder tank truck and a discharge funnel with a warehouse pump. This method can only be applied to the application scenario where pure powder can be pneumatically conveyed

[0011] It can be seen that although the above-mentioned methods have a certain effect of suppressing the escape of dust from the discharge hopper, most of them are not effective, or the cost is too high, or they are universal , Poor scope of applicability

Unable to meet the large-scale promotion of general broad-spectrum application

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