Arrangement in connection with nozzles of powder sprayers or for disintegration and distribution of solid particles in powder form in a gas stream
First Claim
1. Device for the disintegration and distribution of solid particles in powder form transported in a gas stream from a powder hopper to a powder sprayer in which the powder is electrostatically charged when it is transported in a number of curved tubes therein of long extension and small diameter, said device being disposed upstream of said powder sprayer and comprising a tube-shaped component made of porous material to transmit air through which said powder is transported, means for the introduction of a gas stream under pressure in the stream of powder in said component flowing from the hopper on its way to the powder sprayer, and a disc in said component provided with a plurality of through openings which have a maximum diameter corresponding to the diameter of the curved tubes, whereby the powder is mixed with the gas stream under pressure and lump and other large sized agglomerations are disintegrated before its transportation into the curved tubes.
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Accused Products
Abstract
The invention relates to a device for a nozzle of a powder sprayer, which by way of example can be used for spraying for example color powder, which is electrostatically charged, or for disintegration and distribution of solid particles in powder form transported in a gas stream. By means of the present device, which is easy to operate and easy to connect with a transportation circuit respectively, the particle material is effectively disintegrated and distributed. The device has means (17; 51, 58, 75, 76) for the introduction of a gas stream under pressure in the stream of particles flowing through the device, whereby the powder during its forward transportation through the device under simultaneous compression is mixed with the gas rushing in.
19 Citations
8 Claims
- 1. Device for the disintegration and distribution of solid particles in powder form transported in a gas stream from a powder hopper to a powder sprayer in which the powder is electrostatically charged when it is transported in a number of curved tubes therein of long extension and small diameter, said device being disposed upstream of said powder sprayer and comprising a tube-shaped component made of porous material to transmit air through which said powder is transported, means for the introduction of a gas stream under pressure in the stream of powder in said component flowing from the hopper on its way to the powder sprayer, and a disc in said component provided with a plurality of through openings which have a maximum diameter corresponding to the diameter of the curved tubes, whereby the powder is mixed with the gas stream under pressure and lump and other large sized agglomerations are disintegrated before its transportation into the curved tubes.
Specification