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Organization
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Nantong Huili Rubber Co., Ltd.
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E-mail
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26728502@qq.com
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Challenge (Project)
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Stability of quality of regenerated rubber produced by environmental friendly equipment applying new process
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Description
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Regenerated rubber is rubber available for reuse and produced with sulfurized scraps or products and is classified into outer tube, inner tube and rubber shoes by waste rubber used.
In recent years, some domestic manufacturers have developed normal pressure high temperature sulfur-breaking plasticizing equipment and some of such equipment has been adopted by regenerated rubber producers. However, no good result has been achieved as a whole. New environmental friendly equipment has been used for meeting emission standard but regenerated rubber produced with such equipment lacks stability in quality and some fails to meet standard. Weaknesses of such equipment include complex components and high cost; low operating stability resulting in unstable product quality; long installation and commissioning cycle; high failure rate and high maintenance cost arising from poor accessibility.
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Technical Parameters/Requirements
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Spec.: ZBG16001-86
Parameter No.1 No.2 No.3
Engler viscosity S(C100ml; 85℃) 180-250 251-350 351-450
Specific gravity (d20/4) 1.01-1.06 1.01-1.06 1.01-1.06
Volatile matter, %≤ 6.50 6.50 5.5
Ash content, %≤ 0.50 0.50 0.50
Acidity (based on acetic acid),%≤ 0.30 0.30 0.30
Mechanical impurity, %≤ 0.03 0.03 0.03
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Profile (existing facilities, equipment and products)
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Nantong Huili Rubber Co., Ltd. is the largest regenerated rubber producer, national hi-tech enterprise, Jiangsu circular economy demonstration organization, and chairman member of Technology Innovation Strategic Alliance, Jiangsu New Regenerated Rubber Material Industry. The company covers a land area of 150,000m2, has total assets worth￥500 million, employs over 1,000 personnel, and is able to produce 100,000t regenerated rubber of varied types per year. The company leads the nation in quality, technology and equipment and has been ISO9001/ISO14001 and OHSAS18001 certified earlier than its domestic counterparts. The company has set up Jiangsu Rubber Recycling Engineering and Technology Center. Butyl rubber regeneration technology development project and some other projects have been listed in National Major Industry Technology Development Projects and National Torch Program Projects. High temperature continuous regeneration technology independently developed by the company has been granted national invention patent. Nanhui has been a famous brand of China.
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