SU1435194A1 - Grain cleaner for intial cleaning of grain - Google Patents

Abstract

Field of the Invention The invention relates to agricultural land construction. The purpose of the invention is to increase the productivity of the unit and reduce the consumption of materials. The unit contains a fan 8. a bunker-feeder 6 with the first 9 and middle 10 sections of the settling chamber 11 of the device for. pneumofractionation; which are located in the upper part of the reserve grain bunker 12. The last section 13 of the chamber is located in the hopper of the feed grain 14. The middle of the sections is connected to the wind-grate machine 4 noria through the reserve grain bunker, which is connected to the outlet window. The last section is connected to the feed grain bin 14 also by an outlet window and additionally connected to the waste bin 15 in its upper part. The first section of the chamber is connected to the bunker of the cleaned grain by an inclined scraper conveyor 17. The air-guide channel of the device for pneumo-fractionation is connected with the last section of the chamber 11 and is isolated from the bunkers of reserve and feed grains. Grain material from the weep 2 comes to the device 7 for: pneumofractionation and at the same time to the wind sieve machine 4. From the first section 9, the grain enters the bunker of the cleaned grain 18, From the middle section .10 the grain material enters the hopper of the reserve grain 12. Fodder the grain from section 13 enters the bunker 14. Polova, pyp, kin arrives. into the waste bunker 15. 2kl. i (L 4 CO 4ib

Description

The invention relates to agricultural machinery, in particular to grain cleaning units and complexes, and can be used in agriculture and food industry for cleaning and sorting seeds of grain crops.

The purpose of the invention is to increase the productivity of the unit and reduce the consumption of materials.

1 shows a grain cleaning unit for the primary cleaning of grain, a general view of FIG. 2

ZhZA VIEW from the side.ti

A grain cleaning unit for the primary cleaning of grain contains a car engine lift 1, a damming mu 2 with double-dot nori 5, one of which (nori 3) is connected to the wind-grating machine 4 and the trimmer 5 with a grain conveyor 5, and the second grain-conductor is connected to the feeder 6 of device 7 for pneumofraction 1.

The delivery fan 8 is located in the upper part of the reserve grain bunker and is displaced to one of its side walls. The suction part of the fan is led out through an opening in the wall of the bunker. The fan nozzle 8 in the upper part is connected to the feed hopper 6j, which is located inside the floor of the unit room and is provided with a damper for controlling the load. The fan nozzle is expanding and equal at the end to the width of the sections.

9 and the middle section 10 of the settling chamber 11 are located in the reserve grain bunker 12. The last section 13 is located in the hopper 1A for feed grains, and its outlet window is separated from the bunker by a damper as well as the outlet window of the middle section

10ot reserve grain bunker

In the upper part, the last section 13 is connected through a nozzle (not indicated) to the waste bin 15. The outlet of the nozzle is located in the waste bin in the corner, which is fenced off from the rest of the bunker 15 and has a message at the bottom with it. According to the shape of the extension, this part resembles a cyclone with the output to the outside of the unit. Sections 9 ,, 10 and 13 are separated from each other by flap partitions 16. The outlet window of section 9 through the tray is connected to the loading part of the nylon.-

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A scraper trans-porter 17, having a length of 6 m. The conveyor 17 is located on the side of the bunkers and attached to them, and its unloading part communicates with the bunker 18 of the cleaned grain.

In the lower part of the reserve grain bunker 12 there is an opening with a flap for taking the grain material from the silo to noria 19 along the grain conduit 20. Nori 19 also has a message with a bilge, which, if necessary, overlaps with a flap (not shown). The reserve grain bunker is also provided with another grain conduit with a flap for withdrawing a part of the accumulated grain from the middle section to the vehicle.

To reduce the cyclone output in the waste bin 15 and the suction nozzle of the fan B are interconnected by a duct 21, inside of which there is a flap for controlling the air flow to change the grain quality in sections 9, 10 and 13.

The longitudinal axis of the chamber 11 is shifted from the longitudinal axis of the unit to the side wall of the bins. This makes it possible to use the side walls of the bunkers, their ceiling part, to form the air-passage channel of the chamber. On the opposite side, the air duct is isolated from the bunkers by a vertical wall. When positioning the device for pneumofractionation in aggregates, it is necessary to cut the window in the partition between the reserve and feed grain bunker with a section of 1.5 x 1.2 m, and in the partition between the feed and waste bin the window in the upper section for the branch pipe with a section of 1.5 x 0.70 m.

Handles for controlling the position of the flaps 16 on the partitions of the sections through the thrusts inside the unit room.

The total volume occupied by the pneumatic fractionation device does not exceed 10-12%. The size of sections 9, 10 and 13 in the course of the technological process does not exceed 0.8 m, therefore, taking into account the size of the bunker (4.2 m), the ventilator is placed in the reserve grain bunker approximately in the middle.

Grain cleaning unit Primary grain cleaning works in the following way.

The original grain material from the intake 2 comes through the elevators 3 and 19 to the device 7 for pneumo-fractionation and at the same time to the wind-sieve machine 4. From the first section 9 of the device for pneumo-fractionation 10% of the grain with a small contamination enters through the scraper conveyor 17 to the bunker 18 refined grains. From the middle section, 10-60% of the grain material is accumulated in the reserve grain bunker. The feed grain from the last section 13 enters by gravity into the feed grain bunker through the outflow window with the damper, and the chaff, drink and mink are carried by air into the cyclone of the waste bunker, in which they settle and enter from the bottom to the bunker.

Through duct 21, the airflow returns to the fan again.

In the future, the valve on the grain conduit 20 otkryshayut, and from the burial we access the original grain in Noria 1 cover. In such a mode, the delivery of the grain mixture to the wind-screening machine starts from the bunker 12, which smoothes the unevenness of the grain input to the unit. The grain quality in sections 9, 10 and 13 is regulated by changing the position of the flap in duct 21, controlling the flow of air through the duct of the chamber 11 and the angle of the shields on the partitions of the sections.

Claims (1)

Invention Formula Grain cleaning unit for primary cleaning of grain, containing car lifter, scooping mu, windshutting machine and triyer block, bunkers for collecting reserve, fodder, waste and refined grain, a device for pneumofractionation with a feeder, fan, sedimentation chamber with sections, the first of which is connected with the transporting body to the bunker of the refined grain, averagely with a wind-shed machine, the latter with a hopper grain hopper, characterized in that, in order to increase the capacity of the unit and reduce material consumption, the fan with bunker feeder, the first and middle sections of the settling chamber of the pneumatic fractionation device, and the last section chambers in the feed grain bunker, while the middle of the sections is connected to the wind-sieve machine through the reserve grain bunker by means of an outlet window, the latter section being connected to the bunker by fodder the grain also has an outlet window and, additionally, in its upper part, a branch pipe of o-rdsods, and the first section of the chamber is connected with the bunker of the purified grain with an inclined a scraper transformer; in this case, the air-conducting channel of the pneumatic fractionation device is connected to the last section pipe and is isolated from the hoppers of the reserve and feed grains. nineteen fZ FIG. Compiled by K.Tsallagov. Editor OK covecka Tehred M.DidykKorrektor L.Patay Order 5576/2 Circulation 661 VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Subscription