SU1488030A1 - Pneumatic separator for grain-cleaning machine - Google Patents

Abstract

The invention is intended for the separation of bulk materials using air streams and can be used in agricultural production, as well as in the milling, grain elevator and animal feed industries for cleaning and sorting grain. The purpose of the invention is to improve the quality of cleaning and reduce dust in the loading area of the source material. The device includes two pneumo-separating systems (PS), settling chambers and 14, pneumo-separating channels (K) 4 and 11, air-supplying K 2 and 9. Diametrically mounted fan 1 with discharge pipe and suction window is installed between the PS. At the same time, K 2 and the chamber 7 of the first PS are connected to the discharge pipe of the fan 1. A boot device 5 is connected to the suction window of the fan 1 by means of the air outlet K 18. A settler 20 is installed between the fan 1 and K 9. K 4, where light impurities are released to chamber 7. Air from chamber 7 is fed through K 9 to K 11. Part of the impurities settle in the sump 20. Grain from K 4 is fed to K 11, where its final purification takes place. The air from chamber 14 is guided by K 2 to K 4 and chamber 7 by the rotator 1. In order to reduce dust in the loading zone, dust air is sucked from the device 5 through the K 18 air vent to the fan. The connection K 2 and chamber 7 with fan 1 makes it possible to improve the quality of cleaning by optimizing the aerodynamic regime. 1 il.

Description

one

(21) 4258370 / 29-03

(22) 08 .06.87

(46) 06.23.89. Bul No. 23

(71) Head Specialized Design and Technological Bureau for a set of machines for post-harvest grain processing, Voronezh and Kirov Agricultural Institute

(72) 10.P. Polunin, N.I. Grabelkovsky, N.N. Hechtman, V.I. Yefremov

A.I. Shamshev, B.I., Vorotnikov N.P. Sychugov, A.I. Burkov and N.V. Zholoboev. (53) .521.928.6 (088.8)

(56) USSR Author's Certificate No.-860889, cl. B 07 B 4/02, 1979. USSR Copyright Certificate No. 1113186, cl. B 07 B 4/02, 1983.

. (54) PNEUMATIC SECURITY DEVICE OF GRAIN-CLEANING MACHINE (57) The invention is intended for the separation of bulk materials by means of air flow and m. used in agricultural production, as well as in the milling, elezator and feed mills for cleaning and sorting grain. The purpose of the invention is to improve the quality of cleaning and reduce dust in the loading area of the source material. The device includes two pneumo-separating systems (PS) with settling chambers 7 and 14, pneumo-separating channels (K) 4 and 11, air-supplying K 2 and 9. Meldu PS is equipped with a diametric fan 1 with a pressure switch;

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suction window. At the same time, K 2 and the chamber 7 of the first PS are connected to the discharge pipe of the fan 1. A boot device 5 is connected to the suction window of the fan 1 by means of the air outlet K 18. A settler 20 is installed between the fan 1 and K 9. K 4, where light impurities are released to chamber 7. Air from chamber 7 is fed through K 9 to K 11. Some of the impurities settle in the sump.

The invention relates to devices for separating bulk materials using air streams and can be used in agricultural production, as well as in milling, grain elevation and animal feed for cleaning and sorting grain.

The purpose of the invention is to improve the quality of cleaning and reduce dust in the loading area of the source material.

The drawing shows a diagram of the pneumocephalic device.

The device consists of a diametral fan 1 and two successively connected pneumatic separating systems forming one closed system.

The primary cleaning system consists of an air supply channel 2 with a valve 3 for regulating the air velocity, a pneumo-separating channel 4 with a loading device 5, a mechanism 6 for removing the grain mixture, and a settling chamber 7 with a mechanism 8 for removing impurities.

The secondary cleaning system includes an air supply channel 9 with a rotary section 10, a pneumatic separator canap 11 with a loading device 12 and a mechanism 13 for pulling the cleaned grain, a settling chamber 14 with a mechanism 15 for the output of broken and puny grains. The device is provided with a regulating channel 16 with a valve 17 for regulating the air velocity in the second pneumo-separating channel 11 and the air exhaust channel 18.

The suction window of the fan 1 is connected to the settling chamber 14 W

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20. Grain from K 4 is fed to K 11, where its final cleaning takes place. The air from the chamber 14 is vented by the fan 1 by K 2 to K 4 and the chamber 7. In order to reduce the dustiness in the loading zone, the dusty air is sucked from the device 5 through the air outlet K 18 10 to the fan. The connection K 2 and chamber 7 with fan 1 makes it possible to improve the quality of cleaning due to the op-: optimization of the aerodynamic regime. 1 il.

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a pneumatic separating system, and a discharge pipe with an air inlet channel 2 of the first pneumatic separating system and, using a regulating channel 16, with a settling chamber 7 of the first pneumatic separating system.

In the rotary section 10 of the air inlet channel 9, there is a louver grille 19, the lower part of which is located in the sump 20 located between the air inlet 9 and the air separating 11 channels.

The air vent 18 connects the loading device 5 to the suction port of the fan 1 via a window 21.

I A pneumatic separator device can be completed with sieves and three-cylinder cylinders.

The device works as follows.

: The grain material to be cleaned is fed by a loading device 5: from to the pneumatic separating channel 4 of the first system, in which light impurities are separated and carried away by the air flow created by fan 1., to the settling chamber 7, where it is deposited and 8 leads outside the machine. The air cleared of light impurities from the settling duct; measures 7 is fed into the air duct 9 of the second pneumatic separator system and with the aid of a louvered grille 19 installed in its rotary section 10 is additionally cleaned from light impurities, and then enters pneumo-separating 1st channel 11. Light impurities separated by louvre grating 19 (pyreinergic separator) are deposited in the settling tank 20. From the pneumo-separating channel 4, the grain cleaned from light impurities is fed to the sieve mill (not shown) after processing and in which the grain mixture by the loading device 12 is directed to the second pneumatic separating duct 11. In the channel 11, broken and puny grains are removed from the grain mixture by air flow, which are pressed into the settling chamber 14, are deposited in it and removed from it outside the machine by the mechanism 15. The cleaned grain is brought out by the mechanism 13, and the purified from the impurities air from the settling chamber 14 enters the fan 1 again.

The air velocity in the non-air separating channels is controlled as follows. The air velocity in channel 4 is controlled by turning the valve 3, while changing the flow area of the air inlet channel 2, and the air velocity in channel 11 by turning the valve 17, i.e. by changing the passageway of the regulating channel 16. When lithium separation of the wet material, the louvre grating 19 can be disturbed, therefore its bottom {1 edge is located between channels 9 and 11, which ensures a guaranteed supply of air from the sump 20 to the air duct 9, and later into the pneumatic separating duct 1 g. Such an arrangement of the louvered grille 19 reduces the overall resistance of the pneumatic system and reduces energy consumption.

The filled air that escapes through the leakages of the articulation of the parts of the loading device 5 in the material feed zone is discharged through the air outlet channel 18 through the window 21 to the suction port of the fan 1.

A louvre grille mounted on the rotary portion of the air inlet channel of the second pneumo-separating system performs

the role of an inertial dust separator and cleans light impurities from the air flow coming from the settling chamber of the first pneumohelectric system.

The location of the lower end of the louvre grille between the air feeder and the pneumo-separating channels provides an increase in the reliability of the device when processing wet material and reduces the resistance of the pneumatic system, i.e. energy intensity of the process.

The connection of the loading zone of the material in the machine, located in Nagna. the protective branch of the fan, an air outlet channel with the suction inlet of the fan, eliminates the emission of dusty air into the atmosphere through leaks of the input device and reduces dustiness around the machine.

Forms in LA and inventions

A pneumatic separator device for a grain cleaning machine, including two pneumatic separator systems with settling chambers, pneumatic separators and AIR channels, a diametrical fan with a suction window and a discharge pipe, installed between pneumo separator systems and retrofit devices and retreat accessories. , about the fact that, in order to improve the quality of cleaning and reduce the dust content of the air in the loading area, the device is equipped with an air exhaust scarlet connecting said first charging device pneumoseparating system vsasy- vac CIM a window fan and the air supply pipe and the conductive first settling chamber pneumoseparating system connected to the discharge port of the fan.

Claims (1)

Form of invention, Q A pneumatic separating device for a grain cleaning machine, including two pneumatic separating systems with settling chambers, pneumatic separating and air supplying channels, a diametrical fan with a suction window and a discharge pipe installed between pneumatic separating systems, loading devices located in the walls of the pneumatic separating channels o characterized by the fact that, in order to improve the quality of cleaning and reduce dust in the loading zone, the device is equipped with zduhootvodyaschim channel connecting 5, the loading device of the first pneumatic separation system with a suction fan window, and the air supply pipe and the settling chamber of the first pneumatic separation system θ are connected to the discharge pipe of the fan.