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Screening machines HPX-4, HPX-4-01

Screening machines HPX-4, HPX-4-01 are continual process machines designed to clean oilseeds at oil extraction plants. You can easily and quickly clean the sieves inside the machine. 1084 machines have been produced already.

Purpose:

Screening machines HPX-4, HPX-4-01 are continual process machines designed to clean oilseeds at oil extraction plants. You can easily and quickly clean the sieves inside the machine. 1084 machines have been produced already.

The machine made according to 3rd category of State Standard (GOST 15150, climatic execution “У”) for domestic market and export to temperate countries. Concentrator should operate in working terms at the temperature from -10 °С to +40 °С. Relative humidity should be 80 % if average annual temperature is +15 °С and atmosphere pressure is 650 - 800 mmHg (86,6 – 106,7 kPa).

Specifications:

Name of indicators НРХ-4 НРХ-4-01
1. Productivity (depends on work intensity), t/day 50 80
2. Rotation frequency, RPM
     - with frequency control drive 560 - 630 560 - 630
     - without frequency control drive:
     - with motor pulley Ø 125 560 560
     - with motor pulley Ø 133,9 600 600
     - with motor pulley Ø 140 630 630
3. Rotor diameter, mm 800 800
4. Rotor width, mm 980 1 270
5. Installed capacity, kWt 7,5 11,0
6. Airflow consumption for aspiration, m3/h 610 800
7. Fixed operation life without overhaul, year, min. 5 5
8. Total fixed operation life 13 13
9. Dimensions, mm:
     - length 1 735 1 735
     - width 1 315 1 615
     - height 1 710 1 710
9. Weight, kg 1 450 1 805

Work quality parameters:

Parameters Original mixture Large seeds
1. Content, %:    
     - whole seeds 10,98 12,68
     - unprocessed seeds 8,84 4,82
     - kernel 40,48 43,87
     - husk 12,50 18,41
     - broken seeds 11,07 8,49
2. Oil dust, % 16,13 11,73

Design and principle of operation:

The machine (drawing 1) consists of body (1) with installed bearing units, which hold rotor (2), deck (3), deckholder (4), low and upper mechanisms of control of gap between rotor and deck (5 and 6), feeder (7), controlled reflector (8), drive (9), fences (10 and 11), aspirating nozzle (12). This machine doesn't have own fan and joins central aspiration pipe). Rotor rotates due to the belt drive of back wall drive (21).

There is feed roller (14) in the feeder (7). The roller rotates due to the belt drive of rotor through counterdrive (15). The product is spread on feeder due to adjusting valve (16) and feed roller (14). Then the product goes to the feed tray (17) through magnetic protection (16.1). The feed tray is designed to get seeds into the working area between rotor and deck (screening chamber). The seeds processed by impact kits and then seeds go to the grooved surface of the deck. Kernels and husk through the reflector move into the machine exit. Process intensity is regulated by changing of gap between the deck and impact kits.

To achieve design performance, the following steps must be taken:

    1. To install normal circumferential speed (25 m/s = 600 rpm) for impact drum. To achieve seed distribution along the entire length of the drum by adjusting the gate in the feeder.
    2. To place the impact kits away from the grooved surface of the deck in accordance with kind of seeds and humidity. The adjusted position of the grooved surface of the deck in relation to the scourge drum and the selected circumferential speed of the drum must ensure the performance specified in the passport.
    3. To adjust seed flow due to gap change between valve and grooved roller.
    4. To adjust normal airflow mode in the screening chamber. Airflow speed should be adjusted so that no seeds are allowed in the small flow during intensive aspiration.

The raw product moves into the receiving nozzle. After then it goes to the receiving tray through feeder. Afterwards, it goes to the working area between the rotor and deck. The product is going out of the machine through outgoing hole in the floor. The air flow moves towards processed grain. The air flow pick light impurities and husk up through aspiration nozzle. Samples are taken through special hatches (22). For good machine work, you should install magnetic protection, and gate valve front of inlet nozzle.

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