Dd Refiner Double Disk Pulp Refiner for Paper Making

• Customization: Available
• Warranty: 1 Year
• Product Type: Double Disc Paper Pulp
• Model NO.: DD500
• Usage: Household Paper Machine
• Nominal Volume(m³): 1
• Impeller Diameter (mm): 600
• Rotating Speed of Impeller (r /min): Other
• Certification: CE, ISO, SGS
• Condition: New
• After-sales Service: Lifetime After-Sales Service
• Machine Type: High Consistency
• Optional Voltage: 380V/400V/415V
• Capacity: 15-25t/H
• Motor: 160kw
• Main Material: Ht200
• Disc Material: Alloy Material
• Transport Package: Wooden Case
• Specification: 2600x1300x2300
• Trademark: VANGTON
• Origin: China
• HS Code: 8439100000
• Production Capacity: 1000 Set/Year

Product Description

    ZDP series double disc refiner is a new type of refiner designed and manufactured on the basis of many manufacturers in the same industry.
This machine is a continuous beating equipment for coarse and fine grinding in the pulping system of the paper industry. It can also be used as an efficient decontamination equipment for pulp slag regrind and waste paper repulping. It has the advantages of high production efficiency and low power consumption. 
This machine is a horizontal double-disc refiner that feeds pulp on both sides of the double grinding zone and discharges pulp radially above.
Two types of packing seal and mechanical seal are adopted to ensure reliable sealing and direct observation of slurry leakage.
Compared with similar refiners, this machine has improved bearing support structure, balanced operation, high efficiency, more compact structure, and easy installation, debugging and maintenance.


The main technical parameters of the double disc refiner

Model	ZDP380	ZDP450
Grinding disc diameter(mm)	Φ380	Φ450
Production capacity(T/D)	6-20	8-40
Into the pulp concentration	2-5	2-5
Inlet pressure(Mpa)	0.1-0.3	0.1-0.3
Inlet pipe diameter(mm)	2-Φ65	2-Φ70
Outlet diameter(mm)	Φ80	Φ80
Equipped with motor and power	Y250M-6/37KW	Y315M-6/75KW 6/90KW 6/110KW
Spindle speed(r/min)	980	980

The main structure of the double disc refiner

The machine is composed of a main machine refining mechanism, a worm gear feeding mechanism, a bearing support mechanism, a coupling and a base plate.
The machine consists of two fixed grinding discs fixed on the main body of the grinding shell and the stator feed disc and two rotor grinding discs installed on the rotor positioning disc to form two grinding zones.
The slurry enters the center of the grinding zone from the main body of the casing and the two slurry inlet pipes on the stator blade inlet, passes through the grinding zone under the action of centrifugal force and slurry inlet pressure, and completes the beating process through the squeezing and impact of the tooth disc of the grinding zone. The pulp outlet is sent out.
The rotor positioning disk and the main shaft are connected by spline floating, which can make flexible axial movement. 
The adjustment of the grinding disc gap is manual adjustment. The screw nut is driven to rotate by the transmission of the worm and worm gear, so that the screw rod pushes the stator blade to make corresponding axial movement, so that the gap between the two grinding zones is changed, and the grinding disc gap and pressure meet the technological requirements. , The current size is an indication of the pressure in the grinding zone.
 It adopts elastic cylindrical pin coupling to ensure stable operation.
The material of the grinding disc is wear-resistant alloy cast iron, which has been completely ground.
   

OUR SERVICE

Pre-sale service
1. Our professional and experienced engineer team helps every client to find his most suitable equipment or chose of plant. 
2. Any kind of legal logo printing or design are available. 
3. Good Quality + Factory Price + Quick Response + Reliable Service, is what we are trying best to offer you. 

After you choose: 
1. We will make drawing and show you how the pant looks. 
2. Every equipment will be checked carefully before packing. Video on machine testing is available. 
3. Email you the tracking no., and help to chase the container until it arrives you. 

After-sale service
1. We are very glad that customers give us some suggestion for price and products. 
2. If you have any question, please contact us freely by E-mail or Telephone. 


FAQ

Q. What is your payment term? 
A: T/T 30% down payment, balance to be paid before shipment. 
Q: What is your main market? 
A: South America, Eastern Europe, Southeast Asia, Africa, Oceania, Eastern Asia
Q: What is your producing time? 
A: Producing time depends on that machines you ordered. Usually takes 45 days. 
Q: What documents you can offer? 
A: We can offer invoice, packing list, contract, instructions, customs declaration, certificate of origin, CE. If client need other documents, specifications, please confirm with service staff. 
Q: If equipments have some quality problem, how would you deal with? 
A: We will responsible for all the quality problems. We will check the machine to get the problem. If need parts, will send them to you. 
Q: How to install the equipments? 
A: We send 1-2 engineer (100USD/person/day) to the local plant for helping install and commissioning equipments. To save time, our service stuff will tell you what to prepare in advance. We can also teach the workers to how to use the machines and how to make the products better.  


Hoisting and installation of double disc refiner When hoisting, please observe:

Check the appearance of the refiner first, and check whether the accessories are complete according to the packing list.
The refiner should be installed on a firm foundation and fixed with anchor bolts (the size of the reserved hole in the foundation is shown in Figure 3).
 The plane on the base of the refiner requires that the longitudinal horizontal deviation is ≤0.10mm/m and the horizontal deviation is ≤0.2mm/m. At the same time, the spindle is used to adjust the longitudinal horizontal deviation and the outlet flange surface is used to adjust the horizontal deviation.
The coaxiality between the two couplings of the refiner is controlled at 0.20mm, and the gap between the two couplings should be kept consistent, and there should be no offset, tilt, etc.
Electrical appliances for double disc refiner
The motor of the ZDP double-disc refiner adopts Y-△ step-down unidirectional starting, and is automatically controlled by a time relay to realize Y-△ conversion.

Maintenance of double disc refiner

The refiner must be kept clean and the fasteners must be firm. 
The transmission parts should be flexible and operate normally.
All lubrication parts are regularly checked and refueled as required.
If the refiner is down for a long time, the grinding area needs to be cleaned and coated with anti-rust oil.
Replace the grinding discs, when the grinding teeth are only 1mm left, the order is as follows:
Shut down and cut off the power supply;
Retract the stator into the cutter head into the cover;
Loosen the bolts and open the cover;
Remove the rotor positioning plate;
Remove the grinding disc;
When installing a new grinding disc, clean the surface that is in contact with the grinding disc and apply butter. Refer to the installation diagram of the grinding disc to fix the grinding disc. Use the left-grained grinding disc on the side grinding area of the stator and the other side. Right grain grinding plate;
Check again if the grinding disc is installed correctly, close the machine cover and tighten the bolts;
After the new disc is replaced, the grinding disc must be ground with clean water to ensure the quality of the grinding. During grinding, the knife should be fed slowly to prevent strong collisions between the static disc and the movable disc, and the amount of water should be large to avoid tooth surface Fever is too high.

Operation and test run Preparation before starting:

Check whether each lubrication part is in good condition;
Check whether the solid parts are loose, especially the grinding screw;
Connect the power supply;
Withdraw the cutter head, and then start the motor. After the machine runs normally, it will start to feed the slurry, and then slowly pressurize it to feed the slurry;
The pressure current of the ZDPΦ380 refiner is not greater than 65A; the pressure current of the ZDP450 refiner: Y315M-6, the 90KW motor must not be greater than 160A.

Lubrication of double disc refiner
The main shaft is lubricated by oil, inspected once a week, and cleaned and replaced every six months.
ZG-3 calcium-based grease is used for the lubrication of the stator feed disk, and the oil is injected once a week.
The worm gear box uses ZG-3 calcium-based grease, which is checked once a month and replaced every six months.