Supersonic spiral bladeless dust collection device suitable for coal mine transfer point

Abstract

The invention discloses a supersonic speed spiral bladeless dust collection device suitable for a coal mine transfer point. The supersonic speed spiral bladeless dust collection device comprises a shell, a Laval supersonic speed airflow generation device, an airflow reversal acceleration device and a spiral airflow generation device. The shell is of a hollow cylindrical structure, and eight internal thread holes used for installing the laval tube supersonic speed airflow generating devices are formed in the front end of the shell. And the cylindrical section of the rear end of the shell is provided with a circle used for being connected with the air flow reversal acceleration device. A center cavity channel is formed in the center of the Laval supersonic speed airflow generating device, the center cavity channel is divided into a straight pipe cavity channel section and a Laval pipe cavity channel section, and the side wall of an expansion section of the Laval pipe cavity channel section is in a concave curve shape. The two layers of shells of the air flow reversal acceleration device are both horn-shaped, the shells are gradually shrunk from the upper edge to the bottom end, and an air outlet is formed when the shells are shrunk to the minimum position. The spiral airflow generating device is a double-layer ring, and an air splitter is mounted in an interlayer of the ring.

Description

technical field [0001] The invention belongs to the technical field of mine dust prevention and control, and in particular relates to a supersonic spiral bladeless dust collector suitable for coal mine transfer points. Background technique [0002] With the rapid development of coal mine production technology, the coal mining volume and coal mining efficiency have been greatly improved, and the transportation tasks undertaken by the belt transport lanes have become heavier and heavier. It will cause serious dust pollution in the belt conveyor lane, and the long-term exposure of staff and equipment in an environment with high dust concentration will have a huge negative impact on the health of personnel and the safe production of equipment. [0003] At present, the dust removal method of belt transport lanes is mainly spray dust reduction, and auxiliary dust reduction by installing hoods and other means. However, there are still many shortcomings in the existing dust removal...

AI Technical Summary

Problems solved by technology

However, there are still many shortcomings in the existing dust removal methods that have not been effectively resolved, such as the inability to effectively capture respirable dust, the atomization device is fragile, and is prone to blockage, etc. The atomization device produces too much fog, which in turn causes belt slippage The water accumulation in the roadway will reduce the quality of coal, affect its calorific value, and reduce the efficiency of coal mines

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