Dust collecting bag for coal charging car

Abstract

The invention discloses a dust collecting bag for a coal charging car. The dust collecting bag comprises an outer bag body, an inner bag body and a framework; a secondary air flow channel is formed inan annular space between the outer bag body and the inner bag body; an air outlet connected with the secondary air flow channel is formed in the upper end of the outer bag body; a cylinder body is arranged between the bottom of the inner bag body and the bottom of the outer bag body; an open end of the cylinder body is communicated with the inside of the inner bag body; air holes communicated with the secondary air flow channel are formed in two side walls of the cylinder body; a sliding block is slidably arranged in the cylinder body; and a spring is arranged at the bottom of the sliding block. The acting stress generated by the second expansion of the outer bag body is far greater than that generated by the first expansion of the outer bag body, namely the dust adhered to the outer bagbody is completely ejected; compared with a dust collecting bag with a single-layer structure, the dust removal efficiency of the dust collecting bag is greatly improved; and the expansion of the outer bag body is driven by the expansion of the inner bag body, so that the direct erosion of the outer bag body by the air flow is reduced, and the loss of the outer bag body is further reduced.

Description

technical field [0001] The invention relates to the field of bag dust removal, in particular to a dust removal bag used for coal loading vehicles. Background technique [0002] Environmental protection has become a crucial link in industrial development, and the investment in environmental protection equipment will also become a large proportion, which will bring great financial pressure to users. The existing dust bag is a drum single-layer structure, which is easy to process. It is a form commonly used in the existing market, but because of its large size, the equipment manufacturing cost increases, the operating cost is too high, and the single-layer structure has a general filtering effect and a short service life. Moreover, the cloth bag is easy to fold due to the long-term impact of the gas during the collection process, thereby affecting the filtration area of ​​the filter cloth bag, and then affecting the filtering effect of the filter cloth bag. Contents of the i...

AI Technical Summary

Problems solved by technology

It is a form commonly used in the existing market, but because of its large size, the equipment manufacturing cost increases, the operating cost is too high, and the filtering effect of the single-layer structure is average, and the service life is short

Moreover, the cloth bag is easy to fold due to the long-term impact of the gas during the collection process, which affects the filtration area of ​​the filter cloth bag, and then affects the filtering effect of the filter cloth bag.

Images