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HP-DHK Series Double-Layer Preheating Kneader
HP-DHK Series Double-Layer Preheating Kneader
HP-DHK Series Double-Layer Preheating Kneader
HP-DHK Series Double-Layer Preheating Kneader
HP-DHK Series Double-Layer Preheating Kneader
HP-DHK Series Double-Layer Preheating Kneader
HP-DHK Series Double-Layer Preheating Kneader
HP-DHK Series Double-Layer Preheating Kneader

HP-DHK Series Double-Layer Preheating Kneader

Product Description

HP-DHK series double-layer preheating kneading machine (invention patent number: ZL 2009 1 0014580.9) doubles production efficiency, saves 50% of electricity, and saves equipment investment by 50%. In 2009, it was approved by the China Carbon Industry Association, the well-known Shenyang Aluminum Magnesium Design Institute Co., Ltd., Guiyang Aluminum Magnesium Design and Research Institute Co., Ltd. and several domestic well-known carbon experts to participate in the assessment of provincial and ministerial scientific and technological achievements. The preheating kneading machine is the first of its kind in domestics and abroad, reaching the international leading level of similar products.

HP-DHK Series Double-Layer Preheating Kneader
HP-DHK Series Double-Layer Preheating Kneader
HP-DHK Series Double-Layer Preheating Kneader
HP-DHK Series Double-Layer Preheating Kneader
HP-DHK Series Double-Layer Preheating Kneader
HP-DHK Series Double-Layer Preheating Kneader
HP-DHK Series Double-Layer Preheating Kneader
HP-DHK Series Double-Layer Preheating Kneader

Technical Parameters

Model

HP-DHK 1200

HP-DHK 2000

HP-DHK 3000

HP-DHK 4000

HP-DHK 5000

HP-DHK 6000

Rated Volume (L)

Upper Tank

1200

2000

3000

4000

5000

6000

Max. Volume (L)

1600

3100

4500

5200

6800

8250

Rated Volume (L)

Lower Tank

1200

2000

3000

4000

5000

6000

Max. Volume (L)

1800

3100

4800

5800

7100

9000

Revolution of Mixing Blade(rpm)

Upper Tank

14/16

11.5/10

11.5/10

10/9

10/9

10/9

Lower Tank

20

18

14

12

12

11

Heating Method

Heat Transfer Oil

Work Pressure(MPa)

0.4

0.3-0.6

Motor Power(kW)

Main Motor

45

55

75

110

132

160

Motor of Hydraulic Pack

2.2

Overall Dimension (L×W×H) (mm)

6000×1900×3100

5640×2900×4300

6100×3180×5120

6480×3330×5580

6875×3890×5620

7400×4100×6280

TECHNICAL PERFORMANCE

1、High dry material preheating quality

The upper layer adopts tangent, different speed, radius dry material mixing and heating technology, mixing blade stirs materials while heating to make materials contact heat transmission surface of equipment directly to realize efficient heating.

2、High mixing quality

The lower layer adopts intersectant synchronous mixing blade, overlying mixing technology from Japan. Mixing blades rotating range exceed the middle of tank which enlarge the actuating area; two mixing blades have the same spiral climbing direction but different rotating direction, one mixing blade pushes material to the middle and the other one pushes to both sides, material flows like “8” in the tank.

Introduce in the original mixing blade from Japan, the section of mixing blade is elliptic and it pushes material to move along with vertical direction of the elliptic section, squeezing action is intensified, material granules are fully mixed, mixing and kneading effect is strengthened. Elliptic section does not stick to material easily and the surface of mixing blades is free of materials.

3、High efficiency and energy saving

It adopts double-layer preheater and mixer patent technology (invention patent number: ZL 200910014580.9), double-heating & double-mixing carbon mixer technology (patent number: ZL 200420018997.5), with dry material preheating on upper layer and carbon paste mixing on lower layer at the same time, productivity is improved by 80%.

4、Fast heat transmission and high temperature

We adopt efficient high temperature tank patent technology (invention patent number: ZL 2012 1 0124643.8) (customized configuration), overall heating patent technology (invention patent number: ZL 2004 2 0018996.0), mixing blade heating patent technology (invention patent number: ZL 2006 2 0085174.3) (customized configuration), discharge gate heating technology, lining plate and tank body seamless fitting technology. Adopt integral heating mixing blade. Blades, hollow axis and other mixing parts contacting materials heat materials through heat transfer oil.

5、Safety monitoring system of rotating joint and flexible metal tube (optional configuration)

Rotating joint of heat transfer oil is installed with position sensor to monitor displacement of fixed housing of rotating joint and keep communication with central control system at real time. The machine will be stopped immediately and send alarm in case of abnormal conditions. Heat transfer oil inlet and outlet of rotating joint and metal tube are installed with pressure sensor to monitor tube pressure and communicate with central control system, to prompt system maintenance and alarm pipeline leakage in case of pressure changes.

6、Mixing blade safety monitor system (optional configuration)

Mixing blades adopt special design, position sensor monitors operation of mixing blade at real time and transmit running state of mixing blade to central control system. In case mixing blades are blocked by foreign matters, the machine will stop urgently and send alarms to avoid equipment damage.

7、Guarantee dry material particle size distribution

Use special equipment to process inner diameter of tank and bearing hole of tank end plate, equipment machining precision is high and it guarantee gap requirement between mixing blade and tank and prevent particles from grinding during dry mixing and heating.

8、Pitch distribution is uniform

Pitch distribution device is mounted on cover to add pitch into the tank uniformly through multiple points, inclusion of dry material block in paste is avoided. The device is heated by heat transfer oil to avoid solidified pitch blocking the device.

9、Temperature measurement is accurate

Adopt new temperature measuring technology (patent No.: ZL 2014 2 0490132.2) to improve temperature measuring performance of thermo-responsive and anti-interference.

10、Perfect airtightness

Adopt combined overlapping metal ring to form multiple sealing(patent number: ZL 2014 2 0490187.3) to guarantee no carbon powder leakage from shaft end of mixing blade; Hydraulic rotary lock discharge gate has excellent airtightness, sealing surface of which will never worn out that airtightness is reliable with no material leakage from discharge gate.

11、Fast discharge, no material residue

Mixing blade pushes materials spirally to discharge material fast and completely from bottom open discharge gate in less than 2 min without residue left.

12、High wear-resistance

Mixing blade is surface-welded with wear-resistant layers, rigidity of which is up to HRC60-65, and service life of mixing blade is 20 years. New type wear-resistant manganese steel material is used as lining plates with high strength after thermal treatment. Service life of lining plates for anode production is 15 years and 1 year it is for cathode and carbon electrode production.

13、Bearing structure of mixing blade is reliable

Mixing blade shaft adopts self-aligning roller bearing and double-direction thrust bearing design which overcomes axial force of mixing blade and prevents mixing blades from axial shifting and service life of bearing is longer. Bearing structure is fixed on one side and movable on the other side, which eliminates influence of thermal expansion and prevents mixing blade from seizing after it is heated by heat transfer oil.

14、Full automatic Lubrication system with real time monitoring( optional configuration)

It adopts full automatic lubrication system, lubrication interval and lasting time can be adjusted. Lubrication station has pressure sensor to monitor work state of main station of automatic lubrication system at real time, and to send alarm in case of abnormal conditions.

Each lubrication point has automatic reset pressure slide valve and position sensor monitoring work state of each lubrication point and automatically sending out system maintenance prompt and malfunction alarm.

15、Reliable operation of transmission system

It adopts hard teeth reduction gearbox and synchronous gearbox split structure with full lubrication and reliable operation. Hard teeth reduction gear, bearing capacity of which is 3 times of common one, together with gear coupling, guarantee high bearing capacity of transmission system. Hydraulic clutch can adjust transmitted torque according to the load to provide overload protection, and allow the machine to restart with load in case of some special conditions (such as restart after stopping during running).

16、Easy maintenance

It adopts double-layer preheater and mixer patent technology (invention patent number: ZL 200910014580.9), the equipment has traction and sliding device to draw “upper tank” moving on “lower tank” to leave maintenance space for maintenance of lower layer. Tank end plate and tank adopt dual open structure, it is separated into upper and lower parts at the position of mixing blade axial line, together with fine machining and enclosed treatment, installation precision and tank airtightness are guaranteed.

17、Low noise

It is machined by special equipment, to get good concentricity, making the operation smooth, service life long, and operation noise of the entire machine less than 80dB.

18、PLC full automatic control

PLC control and internet communication is adopt to measure, display and transmit equipment running and status parameters at real time (optional configuration). Three kinds of operation mode—internet automatic, single machine automatic and manual—guarantee the machine itself can run automatically no matter if upstream and downstream machines are automatic.

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