ОТКРЫТОЕ АКЦИОНЕРНОЕ ОБЩЕСТВО
«НПО ЦЕНТР»

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  • General
    information
  • Area of
    application
  • Technical
    specifications
  • Advantages
  • Principle of operation

The lock feeder is a device of a continuous action. It provides dust discharge with non-destructive tightness of the apparatus. At the cost of applying of renewable liners made of elastic wear-resistant material, a firm adherence to the walls of the chamber is ensured as well as the gate sealability

Lock feeders are intended to batch free-pouring powdered grainy materials (the size f the grain is not more than 10 mm) with the surface moisture not more than 1,5% and poured density not more than 1,8g/cm3 as well as to discharge the accumulated material from bins, cyclones, silo, etc.

They are applied for equipping the grinding complexes KI and classifying complexes KK.

Lock feeders of OJSC «NPO Center» production are more simple in construction and servicing and on the whole are more reliable in operation.

At the present time there have been developed 9 modifications of two standard sizes with the productivity from 3 up to 40 m3/hour.



Lock feeders are widely used in aspiration, dust and gas cleaning for the purpose of the uniform supply of pulverized and granular bulk load into the processing equipment (crushers, mixing machines, screens, driers, granulators, log washers and so on ).

In pneumatic conveying system in food, chemical, polymer and other branches of industry. Thanks to the compact sizes and the even unloading of the material, lock feeders are also used to supply different bulk products into drag conveyors, screw or belt conveyorsв, belt feeders, shaking sieves and other  processing equipment. 

Peanuts (cleaned)

Cheese powder

Cuprous oxide

Cement

Iron oxide

Sunflower husks

Egg powder

Asphalt dust

Technical carbon

Casting dust

Whey powder

Rice

Mineral powder

PVC powder

Feldspar

Dried milk

Fish flour

Bentonite

Sand

Potassium sulfate

Soy

Coffee beans

Gyps

Zink oxide

Dolomite

Cacao beans

Cocoa powder

Graphite

Fuel pellets

Gluten

Soda

Coffee powder

Ash

Titanium oxide

Polyethylene

Salt

Starch

Wood chips

Carbamide

Granite dust

Sugar powder

Sugar

Talc

Washing powder

Hydrated lime

Spices

Gelatin

Caustic soda

Lead oxide

Quicklime

Malt

Tomato powder

Salicylic acid

Naphthalene

Metallurgical dust

Parameters

Value

Model

PSH-20.001

PSH-20.001.- 01

PSH-20.001. -02

PSH-20.002

PSH-20.004

PSH-20.004. -01

PSH-20.004. -02

PSH-30.001

PSH-30.001. -01

Feed capacity, m3/h

5,75

3,2

5,75

9,3

11,5

13,7

15,8

21,6

37,9

Feed size, mm, n.e.

10

10

10

10

10

10

10

10

10

Inlet port size, mm

150

150

180

160х188

180

180

180

250

250

Rated capacity, kW

0,75

1,1

1,5

1,5

1,5

1,1

1,1

Overall dimensions, mm

length

836

836

836

836

833

833

833

950

950

width

276

276

276

350

276

276

276

410

410

height

310

310

310

336

310

310

310

440

440

Weight, т

105

110

105

105

110

110

110

180

188

Source material moisture content, %, n.e.

15

15

15

15

15

15

15

15

15


• High manufacturing quality which ensure an excellent sealing with practically no possibility of jamming.

• Possibility to perform quick and easy disassembly so that to replace rubber tips of the blades.

• Lock feeders of «NPO Center» production are more simple in construction and servicing and, on the whole, are more reliable in operation.