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05.12.2017
   The representatives of “Klesovski quarry “TECHNOBUD” company came to see the commissioning and testing works of the throw screen GIT52M.   The testings went well and the customers were remained satisfied with the new equipment. A maintenance engineer Cherota R.
 
23.11.2017
  The 12-th International Exhibition “Mining equipment, extraction and concentration of ores and minerals” MWUz-2017 took place on November 15. This is the major international exhibition of mining and metallurgical complex in Uzbekistan, that unites the leading manufacturers and sp
 
22.11.2017
  LLC HC “Rudgormash” manufactured the new throw screens GST-62B and sent them to the client.  The throw screens were produced for the needs of PJSC “Severstal” (Cherepovets metallurgical complex) according to the customer’s documentation.  The throw s


 

Concentrating equipment Vacuum filters

Ceramic vacuum filters KDF

Ceramic vacuum filters KDF
 
Applied for dewatering of concentrates with density from 2,1 to 7,5 g/cm3 in concentrating mills of mining, metallurgical, chemical, coal and other industries.

Filtrating element- porous ceramics.   Increase in productivity and energy efficiency.

Applied for dewatering of concentrates with density from 2,1 to 7,5 g/cm3 in concentrating mills of mining, metallurgical, chemical, coal and other industries.

 

KDF vacuum filters fit perfectly for dewatering of finely divided concentrates with specific surface of more than 1900 cm3/g (according to GOST21043 (Russian State Standard) for maximal reduction of cake humidity altogether with  minimal operational expenditures and in limited production areas.

 

Dewatering of concentrates (pulp) by ceramic filter elements is a result of capillary forces acting when pores are of 2-5 mcm in size. The filtrate under surface tension of fluid and limiting wetting angle rushes to fill all the capillaries and flow over the ceramic barrier, while the capillaries are filled with filtrate and do not let the air pass through. To provide continuous filtration, the filtrate must be removed while low energy consumption provides necessary vacuum. The cake is removed from ceramic discs by special knifes; no compressed air is used.

Advantages of KDF filters.

  1. High specific capacity – 1,5-5 times higher than in similar filters with textile filtrating barrier.
  2. Low humidity of cake – the cake humidity can be reduced to 5% while  specific density of concentrate is 7,5 g/cm3.
  3. Economy of energy resources – reduction of power consumption  10-20 times due to the absence of power-consuming equipment like vacuum pump, air blower and etc.
  4. Lower operating costs :
    - Fewer stoppages to change filtrating barrier;
    - Lower expenditures on filtrating barrier replacement;
    - No abrasive damage of details in filtrate withdrawing system.
  5. Ecological advantages:
    - No atmospheric emission into the working zone due to the absence of blowing.
    - Purity of filtrate up to 0,001 g/l, no pollution in production and environment.
  6. Operational advantages:
    - Fewer service works with filter (no filter tissue, absence of frequent details lubrication);
    - Compact autonomous filter systems that allow to use minimal working area;
    - Continuity of filter operation due  to all-round automation.
  7. High utilization due to easy filter construction and low volume of maintenance.
  8. High reliability due to only few moving parts and little dependence on auxiliary equipment.

 

Special features of KDF filters.

  • no filter tissue (net).
  • Closed regeneration system of filter elements due to backwashing.
  • Additional automated chemical and ultrasonic purification of filter elements  for productivity renewal.
  • Low energy consumption.
  • Minimal working area
  • Continuous work  and  regular discharge of the cake.
  • All-round automation.

Type of parameters

 

Parameters

 

 

 

KDF-30-2,26

 

KDF-75-2,26

 

KDF-150-2,26-2

 

Filtrating surface, m2

 

30 

 

75 

 

150 

 

Disc diameter,m

 

2,26 

 

2,26 

 

2,26 

 

Number of sectors in a disc, items

 

12 

 

12 

 

12 

 

Number of discs in one shaft

 

 

15 

 

15 

 

Number of shafts in a filter, items

 

 

 

 

Vacuum system

 

autonomous

 

autonomous

 

autonomous

 

Amount of vacuum, MPa (kgf/cm2

 

0,085 

 

0,085 

 

0,085 

 

Air pressure on pneumatic valves operation, MPa (kgf/cm2)

 

0,5-0,6 

 

0,5-0,6 

 

0,5-0,6 

 

Rotation frequency of, rpmin:

 

 

 

 

 

 

 

- discs

 

0,3-2,0 

 

0,3-2,2 

 

0,3-2,3 

 

- the mixer

 

10-69 

 

40-70 

 

40-70 

 

Power of electric drives for, kW:

 

 

 

 

 

 

 

- discs

 

3,0 

 

7,5 

 

7,5 

 

- the mixer

 

4,0 

 

9,2 

 

11 

 

- filtrate pump

 

7,5 

 

11 

 

11 

 

- acid pump

 

0,55 

 

0,55 

 

0,55 

 

Ultrasonic radiator power, kW:

 

2,4 

 

6,0 

 

12,0 

 

Total customary power, kW

 

20 

 

40 

 

70 

 

Equipment arrangement

 

On two levels

 

On two levels

 

On two levels

 

Overall filter dimensions, mm , not mere than

 

 

 

 

 

 

 

Length

 

4670х

3380 

 

6900х

3790 

 

7700х

3790 

 

Width

 

2850х

 

3600х

 

4600х

 

Height

 


3380 

 


3790 

 


3790 

 

Mass, kg, not more than

 

10500 

 

19500 

 

29500 

 

  «MMC RUDGORMASH»
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E-mail: export@rudgormash.ru