Dust removal constant-pressure mechanism of powder metering system

Abstract

The invention discloses a dust removal constant-pressure mechanism of a powder metering system. The dust removal constant-pressure mechanism is arranged on a dust remover body and comprises an automatic pressure regulating mechanism, an air inlet at the lower part of one end of the dust remover body correspondingly communicates with the top of a powder metering hopper, the top of the powder metering hopper is correspondingly connected with a screw conveyor through flexible connection, the outer side wall of the powder metering hopper is correspondingly supported through a weighing system, the automatic pressure regulating mechanism comprises a pressure regulating box, a movable door and a counter weight, the pressure regulating box is of a transverse penetrating structure, the inner side end of the pressure regulating box correspondingly communicates with the side part of the dust remover body, a door frame is arranged at the outer side end of the pressure regulating box, the upper end of the movable door is hinged and fixed to the top of the inner side of the pressure regulating box through a rotating shaft and corresponds to the door frame, and the counter weight is correspondingly and fixedly arranged on the movable door. The internal pressure of the system can be flexibly set through adjustment of the position of the counter weight, tedious electrical control is not needed, and the metering precision of the metering system is effectively improved.

Description

technical field [0001] The invention relates to the field of powder weighing and metering, in particular to a dust removal constant pressure mechanism of a powder metering system. Background technique [0002] The air volume of the existing dust collector is the air volume of the equipped fan, which is quantitative; in order to ensure the on-site working environment, the weighing and measurement of the powder must be transported in a sealed state; in order to ensure the measurement accuracy, each powder is weighed The feed end and discharge end of the metering hopper need to be connected by a soft connection; due to the change of the feed amount of each powder weighing metering hopper at different times, and the air volume of the dust collector remains constant, the dust collector and the powder weigher The negative pressure inside the weighing hopper will increase, causing the soft connection to be sucked and deformed to pull the weighing hopper, which will affect the weigh...

AI Technical Summary

Problems solved by technology

[0002] The air volume of the existing dust collector is the air volume of the equipped fan, which is quantitative; in order to ensure the on-site working environment, the weighing and measurement of the powder must be transported in a sealed state; in order to ensure the measurement accuracy, each powder is weighed The feed end and discharge end of the metering hopper need to be connected by a soft connection; due to the change of the feed amount of each powder weighing metering hopper at different times, and the air volume of the dust collector remains constant, the dust collector and the powder weigher The negative pressure inside the weighing hopper will increase, causing the soft connection to be sucked and deformed to pull the weighing hopper, which will affect the weighing accuracy and cause the weighing data to be erratic (according to the actual feedback on site, there is an error of more than 20kg); finally, it directly leads to the failure of the product unqualified

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