How to use LINA Two Roll Open Mill to regenerate wasted rubber?

2021-08-15

How to use LINA Two Roll Open Mill to regenerate wasted rubber?

There are two main methods for the recycling of wasted rubber. The first is to crush or grind wasted tires into fine particles by mechanical means, so-called rubber pellets and powders. The second way is called depressurization technique, by which the chemical network structure of reclaimed rubber is destroyed and the so-called regenerated rubber is made.

The following is the description of the first method:

FIRST STEP:

1. Separate waste rubber into tires, inner tubes, rubber shoes and other rubber products into four categories, separating natural rubber from synthetic rubber.

2. Select rejuvenating agent.

a. Reclaimed rubber should use liquid regenerant.

b. Natural rubber used turpentine as rejuvenator.

c. Synthetic rubber used coal tar.

d. Reclaimed rubber for light-colored products uses oxidized turpentine.

e. Tungsten oil with high physical and mechanical requirements that does not require color.

SECOND STEP:

1. Crush: The washed waste rubber is sifted and sifted with a small steel mill. The fineness of the tire rubber powder is required to reach 26 to 28, and the fineness of rubber shoes and miscellaneous powders is required to reach 24 to 28.

2. Mixing oil (reclaimed rubber): Put the rubber powder into the oil concentrator so that the temperature reaches 70-80°C and mix well with the oil. The amount of oil is 8%-15% of the rubber powder.

3. Desulfurization: The refilled rubber powder is contained in an iron plate and then placed in a horizontal heater to heat it. At 150 to 180° C. for about 10 hours, the waste rubber molecules can be split and converted into regenerated rubber bricks.

4. Pressure: The desulfurized remanufactured film is refined on an open mill, and the roll temperature is controlled between 80 and 90°C until it meets the standard. After the next sheet, the film pressed into a certain thickness by the open mill is a reclaimed rubber.

The above is a specific step method for regenerating waste rubber using an open mill. If there is any question you can leave a message for us, Lina's engineers will do their best to answer your questions.

Open rubber and plastic mixing is the rubber factory used to prepare plastic rubber, rubber or hot refining, a type of roller exposed rubber refining machinery. This machine is suitable for EVA,rubber,synthetic rubber,hot melt and all kinds of chemistry raw material to mix ,mediate and disperse, and then put into the mass production. It is the best choice to test, make sample and learning in school. 

16inch automatic crusher mill

Advantage

1. The roller is made of chilled casting vanadium & titanium alloy iron which is hard    and wear-resisting, the surface hardness is above 70degree, the surface coating is about 15mm.

2. Hard tooth gear reducer with well-design structure, low noise, high efficiency and long    service life.

3. Self-aligning bearing is well matching with the bearing inside leakage-proof device.  The sealers are made of high temperature,wear, oil resistance material,which have very good sealing effect.

4. All main electrics are imported, the alternating current contactor is Shilin brand. The switch and button are Taiwan Tend brand.

5. Circulating lubrication system solves the oil leakage problem. The feature of this system is easy to maintain,easy to replace.

6. This machine is installed with overload protection device which protect the machine will not broken if the machine is overload. The machine will reverse 1/3 round when press the emergency stop button,which sure the production safety.

7. The [U" shape frame is whole set casting, but other factory welded together.

8. The machine base is welded by national standard I steel.

Main parameter

Name	A  Automatic crusher mill
Front roller diameter (mm)(Smooth roller)	400
Rear roler diameter (mm)(Groove roller)	450
Roller length(mm)	840
Front roller speed (m/min)	12.67
Speed ratio	1:1.63
Max roller gap(mm)	10
Nip adjustment	Manual
Mixing capacity(kg)	20
Power (kw)	45-8
Motor RPM(r/min)	740
Reducer ratio	45
Reducer model	315
Roller bearing diameter(mm)	260
Bearing mode	352952YA
Bearing size(mm)	360×260×150

 

Name	B mixing mill
(mm) Front roller diameter(smooth roller)	400
Rear roller diameter (mm)(smooth roller)	400
Roller length(mm)	840
Front roller working speed (m/min)	19.36
Speed ratio	1:1.5
Max roller gap(mm)	10
Nip adjustment	Manual
Mixing capacity(kg)	20
Power (kw)	37KW
Motor RPM(r/min)	980
Reducer ratio	45
Reducer model	315
Roller bearing diameter(mm)	260
Bearing model	352952YA
Bearing size(mm)	360×260×150

 

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