SU656573A1 - Pneumatic seeder - Google Patents

Description

(54) PNEUMATIC SEALER

The invention relates to agricultural machinery, in particular, to pneumatic seed machines, which are used to apply mineral fertilizers, chemical chemicals, etc. to the soil.

Pneumatic seed vessels are known that contain a main hopper with a feeder, a source of compressed air, and a pipeline with hoppers-41 accumulators that are equipped with metering devices at the bottom and tukoprovoda installed under them t.

The disadvantages of the known forks are that during the arrival of the aero mix from the main hopper into the hoppers, the accumulators leak from the latter into the atmosphere of the material being sown and the uniformity of the seed by the material dispensers is disturbed due to the cyclic change in the pressure value in the storage tank.

 The purpose of the invention is to reduce losses of sown material and increase the uniformity of sowing.

This is achieved by the fact that the upper part of each bunker is connected with a branch pipe.

FIG. 1 depicts a pneumatic crop, a general view of FIG. 2 shows a storage bin on an enlarged scale.

The pneumatic plant contains the main bunker 1 with the cyclone 2 and the feeder 3, the compressed air source 4, the storage hoppers 5 with the dispenser 6 and the cable 7 tusks, which are connected to the pipeline 8 with the feeder 3, and the pipeline 9 to the cyclone 2 of the main bunker.

In the upper part of the connection of the pipeline 8 with storage hoppers, there are flags H with openings for air passage and material-conducting openings 11. The upper part of the storage hopper communicates with a cable 7 with the help of the blades and 12 and 13.

The operation of the crop is carried out as follows.

The material from the hopper 1 is fed by the feeder 3 to the pipeline 8 and the injected air source 4 is transported through the pipeline 9 to the cyclone 2, which ensures continuous movement of the material being sown in the zone of the material supply ports of the storage hoppers 5.

With the aid of flags 1O, which act as dividing heads, the aerosol mixture is directed into a storage bin, and part of the air is filtered through the openings in the flags 10 large particles of material slide nq curvilinearine surface of the bunker-accumulator and settle down below and fine particles of material, entrained by the air escaping through the louvers 12, pass through the nozzle 13 and through the connucleus conductor 7 together with the main flow of material sown by the dosing unit are sent to the coulters, into the furrow. Thanks to the presence of pipe 13 and such an air vent; its pressure inside the storage bin in the area of the dispenser is the same and equal to the pressure under the dispenser. As a result, the uniformity of seeding with dispensers is improved, and small particles of material are not thrown into the atmosphere.

fall along with the main material flow into the furrow.

As the bins are empty, the storage bins are continuously replenished by the air mixture circulating through pipelines 8 and 9. The excess air mixture passes through a cyclone 2, from which the material is deposited in the bunker, and the air with dust-like fractions is drawn off from the latter by a source of compressed air.

Claims (1)

Invention Formula A pneumatic crop containing a main hopper with a feeder, a source of compressed air, supplied by a pipeline with storage hoppers, equipped with dispensers in the bottom of which are located under the tukovka lines, in order to reduce losses of the sown material and increase the uniformity of sowing the upper part of each bunker is communicated by a branch pipe with a pipeline; Information sources taken into account during the examination 1, Patent of France No. 1558490, jou A 01 C, 1969.