A wear-resistant belt conveyor capable of operating in extremely cold areas

Abstract

The present invention relates to the field of transportation technology, and in particular to a wear-resistant belt conveyor suitable for working in extremely cold areas and having a heating function. It comprises a transport belt and a roller, wherein the roller comprises a drum wall, a first adhesive layer, a ceramic sheet, a rotating shaft and a bearing seat; receiving plates are fixedly connected on both sides of the drum wall, the rotating shaft passes through the center of the receiving plate and is fixedly connected to the receiving plate, there are two bearing seats for supporting the rotating shaft, and the ceramic sheet is bonded and fixed to the drum wall and the outer surface of the receiving plate through the first adhesive layer. The wear resistance between the drum and the transport belt is effectively increased, the service life of the drum is extended, and the number of times the drum is replaced in the same time period is reduced. A heating sheet is bonded to the inner surface of the drum wall to provide heat for the belt conveyor under extremely cold conditions, so that the drum surface will not freeze, thereby causing slippage, and the drum surface will not crack due to low temperature.

Description

Technical Field

[0001] The invention relates to the field of transportation technology, in particular to a wear-resistant belt conveyor suitable for working in extremely cold areas and having a heating function. Background Art

[0002] Belt conveyors are often used in material transfer work. As an important power device of the belt conveyor, the roller is often affected by high wear during operation and needs to be replaced continuously. Each time the roller is replaced, production must be stopped, resulting in economic losses. In addition, conventional rollers have extremely poor cold resistance and cannot work for a long time in extremely cold areas such as Russia, Northern Europe, and the northern Xinjiang Uygur Autonomous Region, northern Inner Mongolia, Jilin and Heilongjiang in my country. The temperature in these areas is usually below -20°C for more than two months. When working in extremely cold conditions, the belt conveyor roller often cracks, and the roller surface is prone to ice and slipping, which seriously affects the use effect of the belt conveyor. Summary of the invention

[0003] In order to overcome the drawbacks of the prior art, the present invention provides a wear-resistant belt conveyor that can work in extremely cold areas. The outer surface of the cylinder wall is bonded with a ceramic sheet to increase the wear resistance between the roller and the belt; the inner surface of the cylinder wall is bonded with an electric heating sheet to make the belt conveyor suitable for working in extremely cold areas.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] A wear-resistant belt conveyor capable of operating in extremely cold regions comprises a conveying belt and a roller, wherein the roller comprises a drum wall, a first adhesive layer, a ceramic sheet, a rotating shaft and a bearing seat; the first adhesive layer is made of the following components in percentage by mass: 3% to 6% natural rubber, 5% to 9% silicone rubber, 3% to 7% hydrogenated nitrile rubber, and 7% to 10% polycarbonate; 0.5% to 1% zinc oxide, 0.1% to 0.5% stearic acid, 0.1% to 0.5% anti-aging agent ODA: 0.1% to 0.5%, carbon black N330: 10% to 15%, 2% to 3% aromatic oil, 0.8% to 1.5% tackifying resin 2402, 0.05% to 0.1% diphenylguanidine, 0.3% to 0.5% benzothiazole sulfenamide, 0.01% to 0.05% anti-scorching agent CTP, 0.8% to 1.5% sulfur, and 50% to 63% isopropanol.

[0006] The above-mentioned wear-resistant belt conveyor capable of operating in extremely cold regions, the preparation method of the first adhesive layer is as follows:

[0007] First, natural rubber, silicone rubber, hydrogenated nitrile rubber and polycarbonate are loaded into a mixer, and the mixer temperature is raised to 90°C to 105°C. Then, carbon black N330 is added and stirred for reaction until the reaction degree reaches 75% to 82%, and the mixture is left for 50 to 70 minutes. Then, zinc oxide and stearic acid are added, and the temperature is lowered to 20°C for sufficient reaction and fusion. Then, the temperature is raised to 150°C to 180°C, and diphenylguanidine, benzothiazole sulfenamide and anti-scorch agent CTP are added. Increase the pressure to 1.6MPa to 2MPa, and keep warm for 3 hours to 3.5 hours, then reduce the temperature to 43℃~46℃; then add the anti-aging agent ODA, the reaction degree reaches 80%~85%, and stand for 25 minutes to 35 minutes; then increase the temperature to 105℃~115℃, add sulfur, and increase the pressure to 2.2~2.6MPa, and keep warm for 11 hours to 12 hours; then reduce the temperature to 10℃, add isopropanol, and react and fuse for at least 2 hours.

[0008] The above-mentioned wear-resistant belt conveyor that can work in extremely cold areas has receiving plates fixedly connected to both sides of the cylinder wall, the rotating shaft passes through the center of the receiving plate and is fixedly connected to the receiving plate, there are two bearing seats for supporting the rotating shaft; the ceramic sheet is bonded and fixed to the cylinder wall and the outer surface of the receiving plate through a first adhesive layer.

[0009] The wear-resistant belt conveyor capable of operating in extremely cold regions is provided with an electric heating system on the drum, and the electric heating system comprises an electric heating plate and a control circuit; the electric heating plate is composed of a resistance wire or an electric heater connected in series or in parallel, and the electric heating plate is evenly arranged radially and axially along the inner surface of the cylinder wall, with a spacing of 150 mm to 250 mm, and the electric heating plate is bonded and fixed to the inner surface of the cylinder wall by a second adhesive layer with a thickness of 0.2 mm to 1 mm; the control circuit of the electric heating system comprises a comparator U1, a transistor T1, a relay J, a first resistor R1, a second resistor R2, a third resistor R3 and a fourth resistor R4; the first resistor R1 and the second resistor R2 constitute a reference A voltage circuit, the output of which is connected in series with a signal input terminal of a comparator U1; the third resistor R3 and the fourth resistor R4 constitute a temperature sensing circuit, the output of which is connected in series with another signal input terminal of the comparator U1; the signal output terminal of the comparator U1 is connected to the base of the transistor T1, the control coil of the relay J is the collector load of the transistor, and the normally open contact of the relay J controls whether the electric heating plate is powered on or not; the first resistor R1, the second resistor R2 and the third resistor R3 are placed in a first slot body, the first slot body is filled with heat insulation filler, the fourth resistor R4 is placed in a second slot body, and the second slot body is filled with thermal conductive silica gel.

[0010] The above-mentioned wear-resistant belt conveyor that can work in extremely cold areas, the ceramic sheets are arranged in sequence along the outer surface of the cylinder wall, the outer size of each ceramic sheet is 30mm~50mm, and a spacing of 15mm~20mm is left between adjacent ceramic sheets.

[0011] The wear-resistant belt conveyor capable of operating in extremely cold regions has one to four lifting eye screws disposed on the top of the bearing seat, and the lifting eye screws are fixedly connected to the bearing seat.

[0012] The beneficial effects of the present invention are:

[0013] In the present invention, a wear-resistant belt conveyor that can work in extremely cold areas includes a conveying belt and a roller, wherein the roller includes a roller wall, a first adhesive layer, a ceramic sheet, a rotating shaft and a bearing seat; the outer surface of the roller wall is bonded with a ceramic sheet, which effectively increases the wear resistance between the roller and the conveying belt, extends the service life of the roller, and reduces the number of times the roller is replaced in the same time period; and a heating sheet is bonded with the inner surface of the roller wall to provide heat for the belt conveyor under extremely cold conditions, so that the roller surface will not freeze and then slip, and the roller surface will not crack due to low temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below in conjunction with the accompanying drawings.

[0015] Figure 1 It is a top view of the drum;

[0016] Figure 2 It is a schematic diagram of the AA section;

[0017] Figure 3 It is a schematic diagram of the side view of the drum;

[0018] Figure 4 Schematic diagram of the ceramic sheet structure;

[0019] Figure 5 It is a schematic diagram of the present invention;

[0020] Figure 6 This is the schematic diagram of the electric heating system;

[0021] Figure 7 A schematic diagram of the arrangement of a first resistor R1, a second resistor R2, a third resistor R3 and a fourth resistor R4;

[0022] Figure 8 It is a schematic diagram of the structure of the electric heating plate.

[0023] The numbers in the figure represent: 1. cylinder wall; 2. first adhesive layer; 3. ceramic sheet; 4. rotating shaft; 5. bearing seat; 5-1. lifting eye screw; 6. connecting plate; 7. electric heating plate; 8. second adhesive layer; 9. first tank body; 10. thermal insulation filler; 11. second tank body; 12. thermal conductive silicone. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the embodiments.

[0025] See also Figures 1 to 5 The present invention is a wear-resistant belt conveyor that can work in extremely cold areas, including a transport belt and a roller. The roller includes a barrel wall 1, a first adhesive layer 2, a ceramic sheet 3, a rotating shaft 4 and a bearing seat 5. The barrel wall 1 is fixedly connected with a receiving plate 6 on both sides. The rotating shaft 4 passes through the center of the receiving plate 6 and is fixedly connected to the receiving plate 6. There are two bearing seats 5 for supporting the rotating shaft 4. The bearing seat 5 is installed on the outside of the receiving plate 6. The ceramic sheet 3 is bonded and fixed to the barrel wall 1 and the outer surface of the receiving plate 6 through the first adhesive layer 2. After the ceramic sheet 3 is bonded to the outer surface of the barrel wall 1 and the receiving plate 6, the friction between the roller and the transport belt is mainly borne by the ceramic sheet 3. Since the wear resistance of the ceramic sheet 3 is much higher than that of the barrel wall 1 and the receiving plate 6 made of metal, the roller has higher wear resistance and longer service life. The ceramic sheets 3 are arranged sequentially along the outer surface of the barrel wall 1, see Figure 4 The outer dimensions of each ceramic sheet 3 are 30 mm to 50 mm, and grooves of 15 mm to 20 mm are provided between adjacent ceramic sheets 3, so that foreign matter on the drum device can be discharged along the grooves, giving the drum device a unique self-cleaning function.

[0026] See also Figure 2 and Figures 6 to 8The drum is provided with an electric heating system, the drum is provided with an electric heating system, the electric heating system comprises an electric heating plate 7 and a control circuit; the electric heating plate 7 is composed of a resistance wire or an electric heater connected in series and parallel, the electric heating plate 7 is evenly arranged along the radial and axial direction of the inner surface of the cylinder wall 1, and the spacing is 150mm~250mm, the electric heating plate 7 is bonded and fixed to the inner surface of the cylinder wall 1 by a second adhesive layer 8 with a thickness of 0.2mm~1mm; the control circuit of the electric heating system comprises a comparator U1, a transistor T1, a relay J, a first resistor R1, a second resistor R2, a third resistor R3 and a fourth resistor R4; the first resistor R1 and the second resistor R2 constitute a reference voltage circuit , the output of its series connection point is connected to a signal input end of the comparator U1; the third resistor R3 and the fourth resistor R4 constitute a temperature measurement sensor circuit, and the output of its series connection point is connected to another signal input end of the comparator U1; the signal output end of the comparator U1 is connected to the base of the transistor T1, the control coil of the relay J is the collector load of the transistor, and the normally open contact of the relay J controls whether the electric heating plate 7 is powered on or not; the first resistor R1, the second resistor R2 and the third resistor R3 are placed in the first slot body 9, the first slot body 9 is filled with heat insulation filler 10, the fourth resistor R4 is placed in the second slot body 11, and the second slot body is filled with thermal conductive silica gel 12.

[0027] See also Figure 8 The electric heating plate 7 is composed of multiple pieces of resistance wires or electric heaters connected in series and parallel, and the internal space of the electric heating plate 7 is filled with thermal conductive silica gel.

[0028] The present invention selects electric heating plates for heating. It has been verified through experiments that the heating effect and controllability of electric heating plates are superior to the uniform heating of PTC coatings. For PTC coating heating, due to the limitation of the thickness of PTC coating, the power of PTC coating is relatively small, so this heating method is relatively slow and is not suitable for the needs of cargo transportation. Electric heating plates are selected for heating, and the heating speed is relatively fast. For the areas not covered by electric heating plates, since the cylinder wall is made of metal, the thermal conductivity of metal quickly transfers the heat to the covered areas, and the spacing between electric heating plates is 150mm~250mm, so it will not cause uneven heating.

[0029] See also Figure 3 One to four lifting screws 5-1 are provided on the top of the bearing seat 5, and the lifting screws 5-1 are fixedly connected to the bearing seat 5. The design of the lifting screws 5-1 is mainly used for lifting work when the roller is replaced, which is convenient for mechanical operation and reduces manual labor.

[0030] refer to Figure 4A raised structure is provided on the top of the ceramic sheet 3, and the raised structure can be various structures such as a step platform, a round table, etc. Under the pressure of a general conveyor belt, the raised structure of the ceramic sheet 3 can produce a positive traction effect, prevent slipping, increase the friction coefficient of the equipment, improve the wear resistance of the roller equipment, and extend the service life of the conveyor belt roller equipment.

[0031] The first adhesive layer 2 is made of the following components in mass percentage: 3% to 6% natural rubber, 5% to 9% silicone rubber, 3% to 7% hydrogenated nitrile rubber, and 7% to 10% polycarbonate; 0.5% to 1% zinc oxide, 0.1% to 0.5% stearic acid, 0.1% to 0.5% anti-aging agent ODA: 0.1% to 0.5%, carbon black N330: 10% to 15%, aromatic oil 2% to 3%, tackifying resin 2402: 0.8% to 1.5%, diphenylguanidine 0.05% to 0.1%, benzothiazole sulfenamide 0.3% to 0.5%, anti-scorch agent CTP: 0.01% to 0.05%, sulfur 0.8% to 1.5%, and isopropyl alcohol 50% to 63%.

[0032] The functions of the components of the first adhesive layer 2 are as follows: the natural rubber, silicone rubber, hydrogenated nitrile rubber and polycarbonate are the main materials of the first adhesive layer 2 - the main function of natural rubber is to increase the bonding strength and compression resistance; the function of silicone rubber is to increase cold resistance and insulation and prevent cracking; the function of hydrogenated nitrile rubber is to increase tensile strength, yield strength and wear resistance; the function of polycarbonate is to increase acid and alkali resistance; the zinc oxide is the filling material of the first adhesive layer 2, the stearic acid is the dispersing material of the first adhesive layer 2, and the anti-aging agent ODA is the anti-aging agent of the first adhesive layer 2. The carbon black N330 can improve the wear resistance of the first adhesive layer 2, the aromatic oil is a softening material for the first adhesive layer 2, the tackifying resin 2402 is a material for improving the bonding strength of the first adhesive layer 2, the diphenylguanidine is used to shorten the curing progress of the first adhesive layer 2, the benzothiazole sulfonamide is used to shorten the curing time of the first adhesive layer 2, the anti-scorching agent CTP is a material for preventing scorching of the first adhesive layer 2, the sulfur is used for cross-linking the components of the first adhesive layer 2, and the isopropyl alcohol is a dissolving material for the first adhesive layer 2.

[0033] The preparation method of the first adhesive layer 2 is as follows:

[0034] First, natural rubber, silicone rubber, hydrogenated nitrile rubber and polycarbonate are loaded into a mixer, the temperature of the mixer is raised to 90°C to 105°C, and then carbon black N330 is added for stirring reaction, the reaction degree reaches 75%~82%, and it is stopped for 50~70 minutes. The stirring reaction refers to loading the raw materials into the mixer, stirring and allowing them to react chemically and react fully; then zinc oxide and stearic acid are added, and the temperature is lowered to 20°C for sufficient reaction and fusion; then the temperature is raised to 150°C~180°C, and disulfide is added. Phenylguanidine, benzothiazole sulfonamide and anti-scorch agent CTP are pressurized to 1.6MPa to 2MPa and kept warm for 3 to 3.5 hours, then the temperature is reduced to 43℃~46℃; then the anti-aging agent ODA is added, the reaction degree reaches 80%~85%, and it is left for 25 minutes to 35 minutes; then the temperature is raised to 105℃~115℃, sulfur is added, and the pressure is increased to 2.2~2.6MPa, and it is kept warm for 11 hours to 12 hours; then the temperature is reduced to 10℃, and isopropanol is added to react and fuse for at least 2 hours.

[0035] In order to extend the application period of the first adhesive layer 2 to 1.5 times of the original application period, the first adhesive layer 2 can be placed in a cold storage with a temperature below 10°C.

[0036] The composition, preparation method and storage requirements of the second adhesive layer 8 are the same as those of the first adhesive layer 2 .

[0037] The first adhesive layer 2 is further described below in conjunction with the embodiments:

[0038] Embodiment 1: The first adhesive layer 2 adopts the following composition ratio and preparation method.

[0039] Ratio: 6kg natural rubber, 9kg silicone rubber, 3kg hydrogenated nitrile rubber, 7kg polycarbonate, 0.7kg zinc oxide, 0.3kg stearic acid, 0.5kg antioxidant, 10kg carbon black N330, 3kg aromatic oil, 0.8kg tackifying resin 2402, 0.05kg diphenylguanidine, 0.3kg benzothiazole sulfenamide, 0.05kg anti-scorch agent CTP, 0.8kg sulfur, 58.5kg isopropyl alcohol. The mass fractions are: 6%, 9%, 3%, 7%, 0.7%, 0.3%, 0.5%, 10%, 3%, 0.8%, 0.05%, 0.3%, 0.05%, 0.8%, 58.5%.

[0040] Preparation method: first, natural rubber, silicone rubber, hydrogenated nitrile rubber and polycarbonate are loaded into a mixer, the mixer temperature is raised to 90°C, then carbon black N330 is added, stirred and reacted, the reaction degree reaches 75%, and the mixture is left standing for 50 minutes; zinc oxide and stearic acid are then added, and the temperature is lowered to 20°C for sufficient reaction and fusion; the temperature is then raised to 150°C, and diphenylguanidine, benzothiazole sulfonamide and anti-scorch agent CTP are added, the pressure is increased to 1.6MPa, and the mixture is kept warm for 3 hours, and the temperature is then lowered to 43°C; the anti-aging agent ODA is then added, the reaction degree reaches 80%, and the mixture is left standing for 25 minutes; the temperature is then raised to 105°C, sulfur is added, the pressure is increased to 2.2MPa, and the mixture is kept warm for 11 hours; the temperature is then lowered to 10°C, isopropanol is added, and the mixture is reacted and fused for 2 hours.

[0041] Embodiment 2: The first adhesive layer 2 adopts the following composition ratio and preparation method.

[0042] Ratio: 3kg natural rubber, 5kg silicone rubber, 7kg hydrogenated nitrile rubber, 10kg polycarbonate, 0.7kg zinc oxide, 0.3kg stearic acid, 0.5kg anti-aging agent, 15kg carbon black N330, 2kg aromatic oil, 0.8kg tackifying resin 2402, 0.05kg diphenylguanidine, 0.3kg benzothiazole sulfenamide, 0.05kg anti-scorch agent CTP, 0.8kg sulfur, 54.5kg isopropyl alcohol. The mass fractions are: 6%, 9%, 3%, 7%, 0.7%, 0.3%, 0.5%, 15%, 2%, 0.8%, 0.05%, 0.3%, 0.05%, 0.8%, 54.5%.

[0043] Preparation method: first, natural rubber, silicone rubber, hydrogenated nitrile rubber and polycarbonate are loaded into a mixer, the temperature of the mixer is raised to 100°C, and then carbon black N330 is added for stirring reaction, the reaction degree reaches 80%, and it is left for 60 minutes; then zinc oxide and stearic acid are added, and the temperature is lowered to 20°C for sufficient reaction and fusion; then the temperature is raised to 160°C, and diphenylguanidine, benzothiazole sulfonamide and anti-scorch agent CTP are added, the pressure is increased to 1.8MPa, and the temperature is kept for 3 hours, and then the temperature is lowered to 45°C; then the anti-aging agent ODA is added, the reaction degree reaches 80%, and it is left for 30 minutes; then the temperature is raised to 110°C, sulfur is added, and the pressure is increased to 2.4MPa, and the temperature is kept for 11.5 hours; then the temperature is lowered to 10°C, and isopropanol is added for reaction and fusion for 2.5 hours.

[0044] Embodiment 3: The first adhesive layer 2 adopts the following composition ratio and preparation method.

[0045] Ratio: 4kg natural rubber, 6kg silicone rubber, 7kg hydrogenated nitrile rubber, 9kg polycarbonate, 1kg zinc oxide, 0.5kg stearic acid, 0.1kg anti-aging agent, 13kg carbon black N330, 2.5kg aromatic oil, 1kg tackifying resin 2402, 0.1kg diphenylguanidine, 0.5kg benzothiazole sulfenamide, 0.03kg anti-scorch agent CTP, 1kg sulfur, 54kg isopropanol. The mass fractions are: 4%, 6%, 7%, 9%, 1%, 0.5%, 0.1%, 13%, 2.5%, 1%, 0.1%, 0.5%, 0.03%, 1%, 54%.

[0046] Preparation method: first, natural rubber, silicone rubber, hydrogenated nitrile rubber and polycarbonate are loaded into a mixer, the mixer temperature is raised to 105°C, then carbon black N330 is added, stirred and reacted, the reaction degree reaches 80%, and the mixture is left standing for 70 minutes; zinc oxide and stearic acid are then added, and the temperature is lowered to 20°C for sufficient reaction and fusion; the temperature is then raised to 180°C, and diphenylguanidine, benzothiazole sulfonamide and anti-scorch agent CTP are added, the pressure is increased to 2MPa, and the mixture is kept warm for 3.5 hours, and the temperature is then lowered to 46°C; the anti-aging agent ODA is then added, the reaction degree reaches 85%, and the mixture is left standing for 35 minutes; the temperature is then raised to 115°C, sulfur is added, the pressure is increased to 2.6MPa, and the mixture is kept warm for 12 hours; the temperature is then lowered to 10°C, and isopropanol is added for reaction and fusion for 3 hours.

[0047] Embodiment 4: The first adhesive layer 2 adopts the following composition ratio and preparation method.

[0048] Ratio: 5kg natural rubber, 7kg silicone rubber, 5kg hydrogenated nitrile rubber, 8kg polycarbonate, 1kg zinc oxide, 0.3kg stearic acid, 0.2kg antioxidant, 12kg carbon black N330, 2.6kg aromatic oil, 1kg tackifying resin 2402, 0.08kg diphenylguanidine, 0.3kg benzothiazole sulfenamide, 0.03kg anti-scorch agent CTP, 0.77kg sulfur, 56.7kg isopropyl alcohol. The mass fractions are: 5%, 7%, 5%, 8%, 1%, 0.3%, 0.2%, 12%, 2.6%, 1%, 0.08%, 0.3%, 0.03%, 0.77%, 56.7%.

[0049] Preparation method: first, natural rubber, silicone rubber, hydrogenated nitrile rubber and polycarbonate are loaded into a mixer, the temperature of the mixer is raised to 90°C, and then carbon black N330 is added for stirring reaction, the reaction degree reaches 82%, and it is left for 60 minutes; then zinc oxide and stearic acid are added, and the temperature is lowered to 20°C for sufficient reaction and fusion; then the temperature is raised to 170°C, and diphenylguanidine, benzothiazole sulfonamide and anti-scorch agent CTP are added, the pressure is increased to 2MPa, and the temperature is kept for 3 hours, and then the temperature is lowered to 45°C; then the anti-aging agent ODA is added, the reaction degree reaches 84%, and it is left for 32 minutes; then the temperature is raised to 105°C, sulfur is added, and the pressure is increased to 2.2MPa, and the temperature is kept for 12 hours; then the temperature is lowered to 10°C, and isopropanol is added for reaction and fusion for 2 hours.

[0050] The above four embodiments can all obtain the first adhesive layer 2. Under normal circumstances, the first adhesive layer 2 can be used for ten days. After multiple uses, it is known that the first adhesive layer 2 can be stored in a cold storage below 10°C, and the application time can be extended to 15 days.

[0051] In summary, the expansion coefficient of the ceramic sheet 3 selected in the present invention is 0.012, the expansion coefficient of the first adhesive layer 2 produced by the above embodiment is 0.012, and the chemical components of the steel selected for the barrel wall 1 and the receiving plate 6 of the present invention are: C: 0.65%~0.77%, Si: 0.15%~0.35%, Mn: 1.10%~1.50%, and the expansion coefficient of the barrel wall 1 and the receiving plate 6 is about 0.012. Because the expansion coefficients of the ceramic sheet 3, the first adhesive layer 2, the barrel wall 1 and the receiving plate 6 are similar, they will not produce cracks after experiencing temperature changes.

Claims

1. A wear-resistant belt conveyor capable of operating in extremely cold regions, comprising a conveying belt and a roller, characterized in that: The roller comprises a roller wall (1), a first adhesive layer (2), a ceramic sheet (3), a rotating shaft (4) and a bearing seat (5); the first adhesive layer (2) is made of the following components in percentage by mass: 3%-6% natural rubber, 5%-9% silicone rubber, 3%-7% hydrogenated nitrile rubber, 7%-10% polycarbonate; 0.5%-1% zinc oxide, 0.1%-0.5% stearic acid, 0.1%-0.5% anti-aging agent ODA: 0.1%-0.5%, carbon black N330: 10%-15%, aromatic oil 2%-3%, tackifying resin 2402: 0.8%-1.5%, diphenylguanidine 0.05%-0.1%, benzothiazole sulfenamide 0.3%-0.5%, anti-scorch agent CTP: 0.01%-0.05%, sulfur 0.8%-1.5%, isopropyl alcohol 50%-63%; The ceramic sheet (3) is bonded and fixed to the outer surface of the cylinder wall (1) and the receiving plate (6) through the first adhesive layer (2); the chemical composition mass components of the steel material selected for the cylinder wall (1) and the receiving plate (6) are: C: 0.65%-0.77%, Si: 0.15%-0.35%, Mn: 1.10%-1.50%; The expansion coefficient of the ceramic sheet (3) is 0.012, the expansion coefficient of the first adhesive layer (2) is 0.012, and the expansion coefficient of the cylinder wall (1) and the receiving plate (6) is 0.

012.

2. The wear-resistant belt conveyor capable of operating in extremely cold regions according to claim 1 is characterized in that: The preparation method of the first adhesive layer (2) is as follows: First, natural rubber, silicone rubber, hydrogenated nitrile rubber and polycarbonate are loaded into a mixer, and the mixer temperature is raised to 90°C to 105°C. Then, carbon black N330 is added and stirred for reaction until the reaction degree reaches 75%-82%, and the mixture is left for 50-70 minutes. Then, zinc oxide and stearic acid are added, and the temperature is lowered to 20°C for sufficient reaction and fusion. Then, the temperature is raised to 150°C-180°C, and diphenylguanidine, benzothiazole sulfenamide and anti-scorch agent CTP are added. Increase the pressure to 1.6MPa to 2MPa, and keep warm for 3 hours to 3.5 hours, then reduce the temperature to 43℃-46℃; then add the anti-aging agent ODA, the reaction degree reaches 80%-85%, and stand for 25 minutes to 35 minutes; then increase the temperature to 105℃-115℃, add sulfur, and increase the pressure to 2.2-2.6MPa, and keep warm for 11 hours to 12 hours; then reduce the temperature to 10℃, add isopropanol, and react and fuse for at least 2 hours.

3. The wear-resistant belt conveyor capable of operating in extremely cold regions according to claim 2 is characterized in that: The two sides of the barrel wall (1) are fixedly connected with receiving plates (6); the rotating shaft (4) passes through the center of the receiving plate (6) and is fixedly connected to the receiving plate (6); the bearing seats (5) are two in number and are used to support the rotating shaft (4); the ceramic sheet (3) is bonded and fixed to the barrel wall (1) and the outer surface of the receiving plate (6) through a first adhesive layer (2).

4. The wear-resistant belt conveyor capable of operating in extremely cold regions according to claim 3 is characterized in that: The drum is provided with an electric heating system, the electric heating system comprising an electric heating plate (7) and a control circuit; the electric heating plate (7) is composed of resistance wires or electric heaters connected in series and in parallel, the electric heating plates (7) are evenly arranged along the radial and axial direction of the inner surface of the drum wall (1), with a spacing of 150 mm to 250 mm, and the electric heating plates (7) are bonded and fixed to the inner surface of the drum wall (1) by a second adhesive layer (8) with a thickness of 0.2 mm to 1 mm; the control circuit of the electric heating system comprises a comparator U1, a transistor T1, a relay J, a first resistor R1, a second resistor R2, a third resistor R3 and a fourth resistor R4; the first resistor R1 and the second resistor R2 constitute a reference voltage circuit, and their series connection point The output of the third resistor R3 and the fourth resistor R4 constitute a temperature sensing circuit, and the output of the series connection point thereof is connected to another signal input end of the comparator U1; the signal output end of the comparator U1 is connected to the base of the transistor T1, the control coil of the relay J is the collector load of the transistor, and the normally open contact of the relay J controls whether the electric heating plate (7) is energized; the first resistor R1, the second resistor R2 and the third resistor R3 are placed in a first slot (9), the first slot (9) is filled with heat insulating filler (10), the fourth resistor R4 is placed in a second slot (11), and the second slot is filled with heat conductive silica gel (12).

5. The wear-resistant belt conveyor capable of operating in extremely cold regions according to claim 4 is characterized in that: The ceramic sheets (3) are arranged in sequence along the outer surface of the cylinder wall (1); the outer dimensions of each ceramic sheet (3) are 30 mm to 50 mm, and a spacing of 15 mm to 20 mm is left between adjacent ceramic sheets.

6. The wear-resistant belt conveyor capable of operating in extremely cold regions according to claim 5 is characterized in that: One to four eye screws (5-1) are provided on the top of the bearing seat (5), and the eye screws (5-1) are fixedly connected to the bearing seat (5).

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