SU869825A1 - Disc-type distributor - Google Patents

Description

(54) DISK DISTRIBUTOR /

one

The invention relates to a spray drying technique of bard concentrate and can be used in spray dryer spray guns for the entire paper and pulp industry.

A high-speed sprayer containing a coaxially arranged upper disc and a lower spray disc with blades on its working surface and radial blades mounted on a drive shaft l is known.

Its disadvantage is the complexity of the design, the high cost, the metal and energy intensity and the polydispersity of the spray pattern, which reduces the quality of the commercial product.

Also known is a disk sprayer containing coaxially arranged top disk. And a lower spray disk with blades on its working surface and radial blades mounted on a drive shaft and made with a spray edge protruding beyond the edge of the upper disk and a branch pipe. supplying the initial suspension 12.

This sprayer is closest to the invention according to the technical

richer essence and the achieved result.

The disadvantage of it is unsuitability for large-scale production in the order of 30-40, the low evaporation surface of the particles of the spray, which reduces the intensity of the drying process, the low wetted perimeter of the spray edge with which the spray process.

The aim of the invention is to increase the efficiency of the sprayer.

This goal is achieved by the fact that a disk sprayer containing coaxially arranged upper disc and lower spraying disc with blades on its working surface and radial blades mounted on the drive shaft and made with a spray edge protruding beyond the edge of the upper disc and the inlet pipe of the source The suspension according to the invention is provided with an additional disk installed under the spray disk and an additional pipe connected to it for supplying the initial suspension, each flax blade

the spray disc is fixed at its end and has a width at the point of attachment greater than its thickness.

In addition, the disk sprayer is provided with upper and lower cover disks placed on the surfaces of the radial blades.

The disk sprayer is also equipped with a dry product connection pipe installed above the top covering disk.

Figure 1 shows a disk sprayer, a general view; figure 2 - placement of the radial blades; fig.Z - node I in figure 1 (enlarged).

The disk sprayer contains coaxially arranged upper disc 1 and lower spray disc 2 with blades 3 on its working surface and radial blades 4 mounted on the drive shaft 5 and made with spray edge b protruding beyond the edge 7 of the upper disc 1 and pipe 8 supplying the initial suspension.

In addition, it is equipped with an additional disk 9 with an edge 10 installed under the spray disc 2 and an additional branch pipe 11 connected to it with the supply of the original Suspension.

Each radial blade 4 of the spray disc 2 is fixed at its end and has a width at the point of attachment greater than its thickness.

In addition, the disk sprayer is equipped with upper 1 and lower 13 covering disks placed on the surfaces of the radial blades 4, and a dry product supply nozzle 14 installed above the upper covering disk 12.

A drying chamber 15 is provided for drying the particles coated with the suspension.

Disk spray works as follows.

The bard concentrate suspension through pipes 8 and 11 is fed to the cutting disk 2 rotating on the drive shaft 5, and the blades 3 are injected into the gaps between the upper disk 1 and the additional disk 9 beyond the edges 7 on the spray edges b. Since the width of the radial blade 4 is greater than the thickness of the spray disc 2, the coolant is sucked into the space between the upper 12 and the lower 13 COVERED disks. The gas-liquid mixture formed at the outlet of the covering disks 12 and 13 is in contact with a fine powdered dry product fed through the nozzle 1 and sprayed from the rotating surface of the upper covering disk 12. The resulting granules containing a dry burgundy suspension on the surface the concentrate is dried in a spray dryer 15. The radial blades 4 average the upper and lower films converging from the end of the spray disc 2.

The use of the upper and lower surfaces of the spray disc 2 for spraying increases the unit capacity of the disc sprayer, and the formation of granules with a dry core and a wet surface increases 5 the evaporation area with low diffusion resistance to the passage of moisture.

Claims (3)

1. The disk spray containing coaxially located top 5 a disk and a lower spray disk with blades on its working surface and radial blades mounted on a drive shaft and made with a spray edge protruding beyond the edge of the upper disk, and a nozzle supplying the initial suspension, in order to increase the efficiency the sprayer, it is equipped with an additional disk installed under the spray disk and an additional pipe connected to it for supplying the initial suspension, and each radial blade of the spray disk is 0 is fastened at its end and has a width in the place of fastening greater than its thickness. 2. The sprayer according to claim 1, wherein it is provided with an upper and lower covering disks placed on the surfaces of the radial blades. 3. Sprayer according to claims 1 and 2, based on the fact that it is equipped with a dry product connection pipe installed above the top covering disk. Priority for item 3 shall be calculated from January 30, 1980. 5 Sources of information taken into account in the examination 1. US patent 2072587,  CL.239-214.15, published 1937. 2. USSR author's certificate 0 576125, cl. B 05 B 3/12, 1976 (prototype). / fug. / rs