SU940678A1 - Boom for application of pulverized fertilizers - Google Patents

Description

The container 2 is connected by a nozzle 5 to the central part of the rod, in which a flow divider 6 is installed in the form of two concave plates converging into a sharp edge facing the outlet hole. In this case, the edge of the divider is a straight line 7, which is inclined to the direction of movement of the incoming pulverized material and divides the outlet opening by. two (equal parts. Inside | and the boom concentricly installed pipe 9 connected to the air passage channel 8 with JO openings located along the helix and outside tightly closed with porous material 11.

Fertilizing with a rod is performed as follows.

The pulverized material in the tank 2 is aerated from a source of compressed air, acquiring a flow property. At the same time, air from the same source enters pipe 9 through openings 10 into rod 1 and creates a pressure slightly less than pressure in tank 2. Due to this pressure difference, the air mixture through outlet nozzle 5 rushes into the central part of the rod and the sharp edge of flow divider 6 cut into two equal parts. At the same time, due to the inclined arrangement of the divider edge to the direction of movement of the air mixture, the concave plates direct both flows to the upper part of the rod 1, which contributes to a better movement of the air mixture to both bars of the rod and a more uniform distribution across the entire width of the spreader. The airspace that has entered the rod is picked up by air, the missed area of the porous material II covering the openings 10 of the pipe 9 is further aerated, the rod is transported and exhausted from the outlet openings 3 protected by visors 4. Thus, dusty material leaving the bottom of the rod I is directed directly on the surface of the field and evenly distributed over the entire area of application.

The tight fit of the porous material to the pipe 9 leads to; the fact that compressed air passes only through the area of the porous material that overlaps the tube openings 10, as a result, the flow of compressed air entering the distribution rod 1 is reduced. Split the holes 10 along a helical line in the pipe 9 and establish it in the center of the rod section even when A reduced amount of compressed air provides aeration conditions for pulverized material throughout the section. The location of the outlet openings 3 in the lower part of the rod 1 and the presence of protective cuzies 4 creates

targeted distribution of dusty material along the normal to the surface of the floor. In addition, visors 4 protect the outlets from moisture ingress, sticking and clogging. Availability in

The central part of the rod of the flow divider makes it possible to cut the stream of pulverized material H1a into two equal parts, directed in opposite directions from the centerline of the spreader,

which is especially important when working on the slopes. At the same time, the location of the sharp edge of the flow divider obliquely to the direction of movement of the incoming air mixture improves the supply of pulverized material.

at both ends of the rod. The listed advantages of the invention in comparison with the known ones provide a significant decrease in the fertilizer dusting and an increase in the uniformity of its distribution over

surface floor. (

Claims (1)

1. USSR author's certificate No. 406501, cl. And 01 C 15/06, 1972 (prototype). FS / gf .2