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Self-regulating powder-feeding device by fluidizing gas

An automatic adjustment and powder supply device technology, applied in the direction of liquid supply device, etc., can solve the problems of large fluidization gas consumption, inability to provide fluidization effect, and inability to guarantee the powder supply stability of electrostatic powder spray guns, etc., and achieve powder level alarm Accurate and convenient adjustment effect

Inactive Publication Date: 2009-05-27
YU TUNG ZHONGSHAN ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. Large consumption of fluidizing gas
[0005] 2. The best fluidization effect cannot be provided when the powder level is different
[0006] 3. The stability of the powder supply of the electrostatic powder spray gun cannot be guaranteed

Method used

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  • Self-regulating powder-feeding device by fluidizing gas
  • Self-regulating powder-feeding device by fluidizing gas
  • Self-regulating powder-feeding device by fluidizing gas

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Embodiment Construction

[0022] Such as figure 2 As shown, the figure shows a fluidized bed powder supply device that automatically adjusts the air supply pressure and / or flow rate according to the present invention, which consists of a material level sensor 1, a controller 2, a proportional regulating valve 3 and an alarm 4 components, the height of the powder in the powder bucket 5 is measured by the material level sensor 1, and then the height signal is compared with the set value of the powder level height of the controller, and then the opening of the proportional regulating valve 3 is continuously adjusted to automatically adjust the flow rate. The pressure or flow of gasification (the corresponding curve of pressure or flow adjustment can be preset according to actual requirements). If the measured height is lower than the low powder level alarm setting value, a signal is output to the alarm 4 for low powder level alarm. If the measured height is higher than the high powder level alarm settin...

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Abstract

The invention provides a fluidizing gas automatic regulating powder feeding device which comprises a powder bucket, a valve for controlling the input pressure and flow rate of fluidizing gas, a sensor used for monitoring the powder level in the powder bucket, a controller for controlling the actions of the valve according to the data of the sensor and alarm equipment; wherein, the sensor is electrically connected with the controller which is electrically connected with the valve and the alarm equipment. The controller controls the flow rate and the pressure of the fluidizing gas input by the valve according to the information of the height of the powder level obtained by the sensor, and dynamically regulates the height of the powder level in the powder bucket. When height of the powder level exceeds the upper limit or the lower limit preset by the controller, the controller drives the alarm equipment to give the alarm, so that the powder feeding device is avoided being damaged. According to the invention, full-automatic regulation of powder feeding can be realized, thus saving manpower and materials, reducing the consumption quantity of the fluidizing gas; in addition, the best fluidizing effect can be provided under the conditions of different powder levels.

Description

technical field [0001] The invention relates to a fluidized bed powder supply device and an intelligent powder level alarm control device which are used in the electrostatic powder spraying industry and can automatically adjust the air supply pressure or flow rate, and are applied to fluidized bed powder supply equipment. Background technique [0002] Such as figure 1 As shown, in the powder supply device of the current electrostatic powder spraying equipment, the control of the fluidizing gas is generally composed of a position solenoid valve 1, a controller 2 and a regulating valve 3. The on-off of the fluidizing gas is controlled by the position solenoid valve 1, and the pressure or flow of the fluidizing gas is adjusted by the regulating valve 3. The powder level alarm device is composed of two to three proximity sensors 5 and an alarm 4, which is characterized by a simple structure, regardless of the powder level of the powder, all set to a fluidization pressure. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05B5/16
Inventor 何儒群
Owner YU TUNG ZHONGSHAN ENG
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