Closed type feeding and dedusting system

Abstract

The invention discloses a closed type feeding and dedusting system. The system comprises hoppers on material bins, air channels and a fan which is connected with the air channels, wherein ring pipes are connected to feed inlets of the hoppers and surround circumferences of feed inlets of the hoppers; air absorbing holes are distributed in circumferences of inside pipe walls of the ring pipes; the ring pipes are connected with the air channels; hand holes or glove boxes are arranged at positions, which are located below the ring pipes, on the hoppers; and the hand holes are provided with self-closing hand hole doors. The system disclosed by the invention has the beneficial effects that closed type feeding can be realized; the pollution can be controlled while cost reducing and consumption reducing can be realized; and the danger of dust explosion can be avoided at the same time.

Description

technical field [0001] The invention belongs to the field of dust removal, in particular to a closed feeding and dust removal system. Background technique [0002] Chemical plants and pharmaceutical factories often use bags to complete the transfer of solid powder materials. The materials are often small in size and light in weight, and a large amount of dust is easily generated during the feeding process. The flying dust not only pollutes the production and operating environment, but also endangers the health of relevant operators. , but also cause waste of resources. At the same time, there is a risk of explosion if the dust density is too large, which poses a safety hazard. Most of the powder feeding devices currently used are not equipped with a dust removal device. Even if a dust removal device is installed, the dust removal effect is not ideal. For example, a bowl-shaped dust collector is used on the top of the dust removal device to reduce dust. The coverage is not ...

AI Technical Summary

Problems solved by technology

Compared with the above-mentioned feeding system, although this feeding method effectively controls the dust that has entered the bottom of the dust-proof baffle from flying upwards and overflowing, but because the feeding method of the bag is still open, it is still unavoidable that the dust of the bag The dust generated directly outside the feed port (above the dust-proof baffle) when the material is poured into the feed port, especially when a large amount of powder material suddenly falls from a high place and impacts at the beginning of feeding

In addition, during the feeding process, fresh air will enter the system together with the powder under the action of the fan, and the high oxygen content in the system may cause explosion hazards for combustible powder.

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