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Dosing and/or transport of powdery and/or pourable solids

A solid material, powdery technology, applied in the direction of conveying bulk materials, conveyors, transportation and packaging, etc., can solve problems such as pneumatic transmission blockage

Inactive Publication Date: 2012-11-28
PRIMETALS TECH AUSTRIA GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the horizontal solid matter column section moves forward creating an engagement pressure in the solid matter column section, this engagement pressure is directed in all directions and thus also presses or bears on the inner wall of the housing, thereby creating resistance, which resistance is due to Too much resistance will prevent (jam) the piston from continuing to advance or move, or the forward thrust of the piston will compress the solid material column, so that the fine components or soft components in the solid material will bond into the solid material column and agglomerate, This will also cause a blockage in the ongoing pneumatic transmission

Method used

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  • Dosing and/or transport of powdery and/or pourable solids
  • Dosing and/or transport of powdery and/or pourable solids
  • Dosing and/or transport of powdery and/or pourable solids

Examples

Experimental program
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Embodiment Construction

[0044] figure 1 A device known from the prior art (DE 195 38 622 C1) is shown. The device basically consists of a housing 15 with a funnel-shaped inlet 2 and a conical outlet 3 and a piston 19 with a sealed bearing 5 . By opening the inlet valve 16, material flows into the housing 15 and fills it completely. After closing the inlet valve 16 , the outlet valve 17 and delivery gas valve 9 are opened, and the linear drive mechanism 18 pushes the cylindrical piston 37 into the housing 15 . The material located in front of the cylindrical piston 37 in the housing is compacted and begins to fall into the cone after a corresponding push stroke according to the compressibility of the horizontal material column and the friction of the material on the inner wall of the housing. Exporting. Soft materials or materials with a high percentage of fines can compress to the point of agglomeration, which can block the outlet and also jam the linear drive mechanism due to excessive resistance...

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Abstract

The invention relates to a device for dosing and / or transporting of powdery and / or pourable solids, in particular, powders, dusts and / or granules, comprising a housing (15) with at least one funnel-shaped inlet (2), at least one conical outlet (3) and at least one linear drive (18) operating at least one piston (1) with controlled speed and with reciprocation. According to the invention, the dosing and7or transport of powdery and7or pourable solids may be improved, the piston (1) is at least partly designed as a hollow body with an opening (10) facing the inlet (2) and an opening (11) facing the outlet (3).

Description

technical field [0001] The invention relates to a device for metering and / or conveying powdery and / or pourable solid substances, especially powders, dust and / or granules, which has a housing which contains at least one funnel-shaped The inlet, at least one tapered outlet and at least one linear drive mechanism, the linear drive mechanism can adjust the speed to drive the at least one piston to move forward or backward. Background technique [0002] A device of this type is known inter alia from DE 195 38 622 C1, the disclosure content of which is hereby referred in detail. [0003] In the device known from DE 195 38 622 C1, the entire interior of the device is under pneumatic overpressure during process operation. The quantitative quantity pushed forward by the working piston falls into the conical outlet due to the gravity of the earth (the purpose is to be transported out of this device), and the gas quantity introduced into the conical outlet is pneumatically conveyed to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27D3/16F27D3/18G01F11/18B65G53/46
CPCF27D3/0033B65G53/4683G01F11/18F27D3/16F27D3/18C21C7/0037B22F3/004C21C5/466
Inventor B·费尔德豪斯T·费尔德豪斯
Owner PRIMETALS TECH AUSTRIA GMBH
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