TOMINE Steel-rubber Lined composite steel pipe has good corrosion resistance, wear resistance and impact resistance. It is widely used in fine tailings conveying system of mines in metallurgy, electric power, chemical, petroleum, coal, cement and other industries, coal-fired power plant ash conveying system, chemical anti-corrosion, coal mine backfilling and Rivers, port dredging, pipelines and other fields. It is especially suitable for working with a delivery temperature between -50 °C and +120 °C
Featuring at high Wear resistance, corrosion resistance, impact resistance, anti-fouling properties, TOMINE abrasive-resistant pipeline is expecially widely used in transferring ore, concentrated mine, tails mine, coal-fired power plant ash, FGD gypsum slurry, phosphorus chemical slurry, a variety of corrosive liquids from chemical plant, port dredging and other related fields.
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Wide Range of applications :
The steel-rubber composite pipe can be used for a long time under the environment of -50 ° C ~ +120 ° C. The lining rubber will not be separated from the steel pipe due to temperature changes.
High Impact Resistance:
The rubber deforms under impact, absorbs the kinetic energy of the particles, and then returns most of the energy back to the particles in the form of bounce, reducing the impact force and greatly improving the service life.
Good Wearing Resistance:
The rubber lining can be formulated according to the needs of wear resistance, and its wear resistance is more than five times that of steel pipes and more than four times that of ceramics.
Good Anti-Corrosion Performance:
The steel-rubber composite pipe can resist corrosion of various acids, alkalis, salt and sewage, and can be used in complex and harsh chemical corrosion environments.
Small Running resistance and reduced energy consumption .
The rubber-lined steel tube produced by our company is produced by high-pressure air bag extrusion process. The inner wall is smooth, compact and impervious, saving operating costs and reducing costs.
Light weight, easy to install and maintain.
The steel frame of the rubber-lined steel pipe only acts as a bearing, and can be thinned to the minimum pressure level. Its weight is 20-30% lighter than ordinary steel pipe, and the rubber-lined steel pipe is not afraid of bumping, the lining will not be broken, and the rubber-lined steel pipe is used. The service life is 4-5 times higher than that of pure steel pipe. The average annual investment is low during the service life, and the weight is light, the bracket cost can be saved, the resistance consumption is small, the operation cost is saved, and the comprehensive cost of the rubber-lined steel pipe is greatly reduced, which can save the user. A lot of money.
Can Be Recycled.
The steel pipe only needs one-time investment. The used old steel pipe can be used after repairing the rubber. The rubber is equivalent to 4-5 times of the life of the metal pipe. Further saving money, energy saving and environmental protection.
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Steel Pipe Size （mm） |
Thickness （mm） |
Work Pressure（Mpa） |
Pipe Size （mm） |
Recommanded rubber thickness （mm） | Working Pressure （Mpa） | |
| φ89×4 | 4mm | 0-6.4 | φ325×8 | 6mm | 0-4 | |
| φ108×5 | 4mm | 0-6.4 | φ377×9 | 6mm | 0-4 | |
| φ133×5 | 4mm | 0-6.4 | φ426×9 | 6mm | 0-4 | |
| φ159×5 | 4mm | 0-4 | φ480×9 | 8mm | 0-2.5 | |
| φ180×5 | 4mm | 0-4 | φ530×9 | 8mm | 0-2.5 | |
| φ219×6 | 5mm | 0-4 | φ560×9 | 8mm | 0-2.5 | |
| φ245×6 | 5mm | 0-4 | φ630×10 | 10mm | 0-2.5 | |
| Φ273×6.5 | 6mm | 0-4 | φ680×10 | 10mm | 0-2.5 | |
Products Type
A.Wearing Resistance Rubber-Steel Composite Pipe
TOMINE wear-resistant steel-rubber composite pipe adopts the principle of “overcoming rigidity with softness” to reduce the impact and wear from conveying medium on pipe wall. The wear- impact resistance of rubber-lined pipelines widely used in mineral processing plant’s raw ore, concentrate, tailings slurry transportation pipelines. The rubber lining layer of the wear-resistant steel-rubber composite pipe is made of rubber that is produced Malaysia, formulated and processed with special technology, adhering with excellent wear resistance. The elbow adopts a unique eccentric technology, without changing the diameter of the pipe, the increasing thickness of the outer arc rubber lining updates mostly the service life to more3 times than that of the ordinary rubber lining elbow.
Performace Index of
| Description | Standard | Index |
| lining breaking strength（MPa） N >= | GB/T 528-2009 | 18 |
| Lining &skeleton 180°, peel strength：（KN/m） >= | GB/T 15254-1994 | 18 |
| Lining layer elongation at break：（％）N >= | GB/T 528-2009 | 550 |
| Constant elongation stress of lining layer：（300%MPa ） N | GB/T 528-2009 | 5 |
| Akron wear reduction of lining layer:（cm3/1.61 km ） <= | GB/T 1689-1998 | 0.02 |
| Lining hardness (Shore Type A) | GB/T 531.1-2008 | 60±5 |
| Change rate of fracture strength of lining layer during hot air aging（70°Cx72h, %） <= | GB/T 3512-2001 | 10 |
B.Corrosion resistant steel and rubber composite pipes
TOMINE corrosion resistant steel and rubber composite pipes are widely used in solid, powder, gas and liquid conveying environment in the field of acid, alkali, salt and oil conveying. TOMINE has mature rubber formula design capability based on years of research and development of rubber formulations and practical application experience, which can be selected according to the different conveying media and specific working conditions with the corresponding lining formula, such as natural rubber, butyl rubber, neoprene, butyl rubber, etc. The lining rubber can be used in one or more layers and can be hard rubber semi-hard rubber or soft rubber
Performance Index of Corrosion resistant steel and rubber composite pipes
| Descriptio | Soft Rubber | Hard Rubber |
| lining breaking strength（MPa） N >= | 20 | 17 |
| Lining &skeleton 180°, peel strength：（KN/m） >= | 9 | 10 |
| Elongation at tear of the lining layer：（%）＞ | 550 | 400 |
| Lining layer elongation at break：（％）N >= | 8 | 10 |
| Akron wear reduction of lining layer:（cm3/1.61 km ） <= | 0.05 | 0.04 |
| Change rate of fracture strength of lining layer during hot air aging（70°Cx72h, %） <= | 10 | 10 |
3.Products Specification
3.1.straight pipes, bends, tees and reducers.
3.2.diameter range: DN50 – DN1800.
3.3. Spiral welded pipe as skeleton are available in diameter range ①219-1820, and the thickness of the pipe can be chosen from 6mm-18mm according to the customer’s requirements, with a maximum working pressure of 4.0MPa.
3.4.seamless steel pipe as skeleton are available in the diameter range ①57-①720, the thickness of the pipe can be chosen from 3.5mm-60mm according to the customer’s requirements, and the maximum working pressure is 6.4MPao.
3.5 The thickness of the rubber lining is determined according to customer requirements and specific working conditions.
C.Desulfurization steel and rubber composite pipe
Introduction
Desulfurization steel and rubber composite pipe is widely used in power plants: exhaust desulfurization device (desulfurization pipeline, acid water storage tank, anion tank, anion tower, absorption tower flue, accident slurry tank, limestone slurry tank, machine mill recirculation slurry tank): coking plant, gas plant: desulfurization tower body, desulfurization pipeline, chemical salt equipment, evaporation tower. Lining with natural hard rubber, butyl rubber, nitrile rubber, etc. Butyl rubber has excellent acid and alkali resistance, and the temperature resistance can reach 120℃. And has excellent airtightness, mainly used in ozone resistance, sunlight and aging occasions. Butyl rubber uses special bonding agent, the bonding strength reaches international 4N/mm².
Product specifications
1.Desulfurization steel rafter composite pipe diameter range: DN50-DN2000
2.The diameter range of desulfurization steel and rubber composite pipe with seamless steel pipe as skeleton is φ57- φ720, and the thickness of steel pipe is 3mm-60mm according to customer’s requirement, and the maximum working The maximum working pressure is 10.0MPa.
3.Hardness Inspection Specific
| Rubber type | Maximum Application Temperature °C |
Application Pressure MPa | Physcal Performance | Vulcanization method | Application | ||||
| Negative pressure | Positve pressure | Hardness HS | Tensile strength MPa | Elongation % | Bonding force with metal | ||||
| Natural semi-hard rubber | 60-80 | -0.098 | 0.98 | Shore D65 ±10 |
>20 | >50 | ≥80kg/cm² | Pressurized vulcanization | Acid-resistant (hydrochloric acid, dilute sulfuric acid) alkali-resistant, Salt water resistance, strong flexibility and resistance to impact |
| Natural hard rubber | 80-100 | -0.098 | 0.98 | Shore D75 ±10 |
>22 | >25 | ≥80kg/cm² | Pressurized vulcanization | Resistant to acid, alkali and salt water |
| Natural soft rubber | 70-90 | -0.098 | 0.98 | Shore A60 ±7 |
>20 | >450 | ≥6kg/cm² | Pressurized vulcanization or atmospheric vulcanization |
Standard:Acid and alkali resistant, can be used in salt acid storage tank, resistant to slurry abrasion, can be used for Field lining |
| Low calcium and magnesium hard rubber | 80-100 | -0.098 | 0.98 | Shore D65 ±10 |
>22 | >30 | ≥80kg/cm² | Pressurized vulcanization | Standard product. Natural hard rubber sheet with Ca,, Mg, very low content, for use with caustic soda Plant lining |
| Normal pressure vulcanized hard rubber | 80-100 | -0.098 | 0.98 | Shore D70 ±10 |
>20 | >40 | ≥60kg/cm² | atmospheric vulcanization | For acid and alkali resistant plant equipment and management of field linings |
| Neoprene sheet | 80-110 | -0.098 | 0.98 | Shore A60 ±7 |
>10 | >400 | ≥6kg/cm² | Pressurized vulcanization or atmospheric vulcanization |
Standard product. Good oil resistance, weather resistance performance, mainly used in phosphoric acid, seawater Power station and heat exchanger lining |
| Butyl rubber sheet | 80-120 | -0.098 | 0.98 | Shore A60 ±7 |
>12 | >450 | ≥6kg/cm² | Pressurized vulcanization or atmospheric vulcanization |
Standard products. High temperature resistant, sulfuric acid resistant, containing Fluoric acid, also field lining |
| Pre-vulcanized butyl rubber | 80-120 | -0.098 | 0.98 | Shore A65 ±7 |
>6 | >350 | ≥4kg/cm² | Pre-vulcanization | Field lining, large equipment without vulcanization Equipment corrosion protection |
Applicatio Standard:
TOMINE provides range of products and service in mineral processing concentrator plant based on prelimilarty MIneral Labratory Study, Engineering design and Manufacturing
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