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High-pressure conveyed continuous powder body quantitative feeding device

A technology of quantitative supply and supply device, which is applied in the direction of conveying bulk materials, conveyors, transportation and packaging, etc. It can solve the problems of air leakage, the reduction of the air locking capacity of the screw pump, and the failure of the powder quantitative supply machine to work normally.

Inactive Publication Date: 2012-09-12
北京燕山粉研精机有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once the delivery pressure is higher than 0.2MPa, the air-locking capacity of the screw pump will be significantly reduced, and the air leakage will be serious, which will cause the upstream powder quantitative feeder to fail to work normally.

Method used

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  • High-pressure conveyed continuous powder body quantitative feeding device
  • High-pressure conveyed continuous powder body quantitative feeding device

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Embodiment Construction

[0011] The following is attached figure 1 The specific embodiment of the present invention will be described in detail. Such as figure 1 As shown, a high-pressure conveying loss-in-weight powder quantitative supply device includes a powder feeding bin (1), a gate valve (2), a pneumatic valve (3, 5, 6, 8, 9, 10), a calibration bin (4 ), weighing sensor (7, 11), weighing bin (12), rotary feeder (13), Venturi tube (14), PLC control system (15).

[0012] The weighing bin (12) and the rotary feeder (13) constitute a weightless powder quantitative feeding machine. The Venturi tube (14) is conducive to the smooth entry of the powder into the pneumatic conveying pipeline. The calibration bin (4) is used for the weighing bin (12) ) to replenish materials and isolate the high pressure in the weighing chamber (12) from the normal pressure in the powder feeding chamber (1). Under working conditions, since the pneumatic valve (9) is always closed and the pneumatic valve (10) is always op...

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PUM

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Abstract

The invention provides a high-pressure conveyed continuous powder body quantitative feeding device, which comprises a powder feeding bin, a gate valve, a pneumatic valve, a calibration bin, a weighing sensor, a weighing bin, a rotary material feeder, a Venturi pipe and a programmable logic control (PLC) system, wherein the weighing bin and the rotary material feeder form a weight loss type powder body quantitative feeder; the operation pressure of the powder feeding bin is normal pressure; the operation pressure of the calibration bin is normal pressure during material feeding and is pressure of an air storage tank during material discharging; and the operation pressure of the weighing bin is pressure of the air storage tank. The pressure in the weighing bin is always equal to the pressure in a conveying pipeline, so that the change of the pressure in the conveying pipeline does not influence the feeding and metering precision.

Description

Technical field: [0001] The invention relates to the field of quantitative supply of powder, in particular to a high-pressure conveying continuous powder quantitative supply device that can be used in chemical industry, metallurgy and other industries. Background technique: [0002] In the chemical industry, metallurgy and other industries, there are many places where high-pressure continuous metering powder equipment is needed, such as: Ausmelt furnace, fuming furnace, polysilicon reactor, etc. The common characteristics of these production lines are: high conveying pressure, continuous metering, and quantitative supply are required. When the conveying pressure is not high (less than 0.2MPa), there are many methods that can be realized, for example: using powder quantitative feeder + screw pump Configuration, the powder quantitative feeder completes the continuous metering and quantitative feeding functions under normal pressure, and the screw pump completes the powder tran...

Claims

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Application Information

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IPC IPC(8): B65G53/06B65G53/40B65G53/66
Inventor 徐学志韩平郭建
Owner 北京燕山粉研精机有限公司
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