Tongli edge drive ball mill is a ball mill that uses a motor through a reducer, and the small gear drives the large gear, thereby driving the ball mill cylinder to operate. Its transmission method is to transmit from one side of the ball mill, so it is edge drive. Edge drive ball mills have two transmission layouts: left-handed and right-handed. The judgment standard is to stand at the discharge port of the ball mill and see that the cylinder rotates counterclockwise for left-handedness and clockwise for right-handedness. In terms of spatial layout, left-handed and right-handed ball mills should be placed according to the on-site conditions. In two ball mills used in parallel, using one left-handed and one right-handed ball mill can save space and facilitate maintenance.
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The main features of Tongli edge drive ball mill include lower working current, lower starting current, saving lubricating oil, increasing loading capacity, increasing output, increasing speed and saving electricity.
Suitable for large-scale material processing. The equipment is equipped with high-strength gears, and the transmission efficiency can reach 95%. The inner lining is made of high-chromium wear-resistant material to reduce the wear rate. The transmission system is located at the edge of the cylinder, allowing greater load-bearing capacity, easy maintenance and overhaul, so that it performs well in continuous production.
This means that under the same working conditions, the edge drive ball mill can use electrical energy more efficiently. Reducing starting current by 50%, which is particularly important for the startup of large equipment, can reduce the impact on the power grid and protect the safety of equipment.
The use of rolling bearings reduces the need for lubrication and reduces maintenance costs. 20% higher loading capacity and 15% higher output, as well as 10% higher speed, these indicators show that the edge drive ball mill has improved production efficiency and output.
Model | Cylinder Diameter (mm) | Effective Cylinder Length (mm) | Effective Volume (m³) | Working Speed (r/min) | Maximum Ball Load (t) | Main Motor Power (KW) | Main Motor Poles |
ZJTLS0909 | 900 | 900 | 0.5 | 39.2 | 0.96 | 17 | 720 |
ZJTLS0918 | 900 | 1800 | 1 | 39.2 | 1.92 | 22 | 720 |
ZJTLS1212 | 1200 | 1200 | 1.2 | 31.3 | 2.4 | 30 | 730 |
ZJTLS1224 | 1200 | 2400 | 2.4 | 31.3 | 4.8 | 55 | 730 |
ZJTLS1515 | 1500 | 1500 | 2.5 | 29.2 | 5 | 60 | 725 |
ZJTLS1530 | 1500 | 3000 | 5 | 29.2 | 10 | 95 | 725 |
ZJTLS2122 | 2100 | 2200 | 6.6 | 23.8 | 15 | 155 | 730 |
ZJTLS2130 | 2100 | 3000 | 9 | 23.8 | 20 | 210 | 735 |
ZJTLS2130 | 2100 | 3000 | 9 | 23.8 | 20 | 210 | 735 |
ZJTLS2721 | 2700 | 2100 | 10.8 | 20.5 | 23 | 260 | 735 |
ZJTLS2727 | 2700 | 2700 | 13.9 | 20.5 | 29 | 310 | 735 |
ZJTLS2736 | 2700 | 3600 | 18.5 | 20.5 | 39 | 400 | 187.5 |
ZJTLS3230 | 3200 | 3000 | 21.8 | 18.5 | 46 | 500 | 167 |
ZJTLS3236 | 3200 | 3600 | 26.2 | 18.5 | 58 | 630 | 167 |
ZJTLS3245 | 3200 | 4500 | 32.8 | 18.5 | 65 | 800 | 167 |
ZJTLS3639 | 3600 | 3900 | 36 | 17.5 | 75 | 1000 | 167 |
ZJTLS3645 | 3600 | 4500 | 41 | 17.5 | 90 | 1250 | 150 |
ZJTLS3650 | 3600 | 5000 | 46.2 | 17.3 | 96 | 1400 | 150 |
ZJTLS3660 | 3600 | 6000 | 57 | 17.3 | 120 | 1600 | 150 |
ZJTLS4560 | 4500 | 6000 | 87.1 | 15.3 | 153 | 2300 | 200 |
ZJTLS4866 | 4800 | 6600 | 107.5 | 15 | 200 | 3000 | 200 |
ZJTLS5592 | 5500 | 9200 | 202 | 13.7 | 375 | 5200 | 200 |
The gear ring of an edge drive ball mill is one of its core components, with a diameter reaching up to 7 meters. It features a segmented design, typically divided into 8-10 sections. Each section can weigh up to 12 tons, facilitating installation and maintenance. The gear ring is made of high-strength alloy steel, with a hardness of HRC56-60, significantly enhancing its wear resistance.
The gear teeth generally use a 20° full-depth involute tooth profile, with a module ranging from 28 to 36 mm. The contact ratio between the gear ring and the pinion is ≥1.4, ensuring smooth transmission. The gear ring is bolted to the cylinder body, with each bolt having a diameter of up to 70 mm and a tightening torque of up to 2500 N·m, ensuring it does not loosen during operation.
The gear ring's lifespan is typically 8-10 years, providing long-term reliability and efficiency in grinding operations. The robust construction and precise engineering of the gear ring play a crucial role in maintaining the performance and durability of the edge drive ball mill.
The gearbox of an edge drive ball mill features a three-stage reduction design, with a total reduction ratio reaching 70-100:1. The gearbox housing is made of high-strength cast steel, with a weight of up to 40 tons. The gear material is 42CrMo alloy steel, which undergoes carburizing and heat treatment, achieving a surface hardness of HRC58-62. The gear precision level meets the Grade 5 standard of GB/T 10095-2008.
The gearbox uses a forced circulation lubrication system, with an oil pump flow rate of up to 200L/min, ensuring excellent lubrication of the gears. The transmission efficiency of the gearbox can reach 98%, and the noise level is controlled below 85 decibels. The service life of the gearbox can reach up to 100,000 hours, with the intermediate bearing replacement cycle being approximately 5 years.
The entire reduction system weighs up to 60 tons and requires specialized foundation support. The robust construction, high precision, and efficient lubrication system contribute to the reliability and longevity of the gearbox, making it an essential component in the operation of an edge drive ball mill.
The feeding end of the edge drive ball mill uses a vibrating feeder with a width of up to 1.5 meters and a length of up to 2.5 meters. The vibrating feeder is driven by dual motors, providing an amplitude of 5-8mm, and the frequency can be adjusted within the range of 800-1200 times per minute. The liner of the feeder is made of high manganese steel, with a thickness of up to 30mm and a service life of up to 3000 hours.
The feeding accuracy of the system can reach ±1%, and the maximum feeding particle size can be up to 250mm. The feed inlet is equipped with a metal detector that can detect metal foreign objects with a diameter greater than 40mm, with a sensitivity of 99.5%.
The entire feeding system can weigh up to 10 tons and has a processing capacity of up to 1000 tons per hour. The robust construction and high precision of the feeding system ensure efficient and reliable operation, making it integral to the overall performance of the edge drive ball mill.
An edge drive ball mill is a crucial piece of equipment used for grinding materials and is widely utilized in industries such as mining, metallurgy, building materials, and chemicals. Its main function is to grind larger particles of material into a finer powder to meet the requirements of subsequent processing steps. The working principle involves an electric motor driving the edge drive gears, which in turn rotate the mill cylinder. The grinding media inside the cylinder (such as steel balls or ceramic balls) rotate as well, creating intense collisions and friction that crush the material into powder.
The edge drive ball mill boasts several advantages, including a simple structure, easy operation, and convenient maintenance. Its grinding capacity typically ranges from 100 liters to 5000 liters, with rotational speeds generally between 20 to 80 revolutions per minute. The power output of the mill varies from 15kW to 800kW.
These flexible configurations allow the edge drive ball mill to adapt to the grinding requirements of different materials, providing efficient production solutions. Its versatility and efficiency make it an essential component in various industrial grinding processes.
The edge drive ball mill is widely used across multiple industrial sectors, including mining, metallurgy, building materials, chemicals, battery materials, and ceramics. Specifically, in the mining industry, it is used for grinding metal ores such as copper, iron, and lead-zinc ores, with a processing capacity reaching several tons per hour and producing fine powders with particle sizes ranging from 10 microns to 100 microns.
In the metallurgy industry, edge drive ball mills are utilized to prepare alloy materials and smelting additives, enhancing the properties of metal materials. In the building materials industry, particularly in cement production, these mills are used to grind cement raw materials, achieving a processing capacity of up to 200 tons per hour.
In the chemical industry, edge drive ball mills are employed in the manufacture of pigments, coatings, and pharmaceuticals, ensuring uniform material dispersion. Additionally, this equipment is increasingly being used in the production of battery materials, such as the grinding of cathode and anode materials for lithium-ion batteries.
The versatility and efficiency of edge drive ball mills make them essential in various industrial grinding processes, providing high-performance solutions tailored to specific material requirements.
The maintenance of an edge drive ball mill is crucial to ensure its long-term stable operation and efficient production. First, it is essential to regularly inspect and lubricate the components of the drive system, including gears, bearings, and motors, to prevent wear and malfunction. Second, periodically check the wear condition of the liners and grinding media inside the mill cylinder, and replace damaged parts promptly to maintain optimal grinding performance.
Additionally, monitor the operational status of the mill, paying attention to abnormal noises, vibrations, and temperature changes, and address potential issues promptly. Regularly clean the equipment to prevent dust and debris from affecting the normal operation of the mill. Finally, establish detailed maintenance records and perform regular inspections and maintenance to extend the equipment's lifespan and ensure continuous and stable production.
Proper maintenance practices will help in achieving consistent performance and reducing downtime, thereby maximizing the operational efficiency of the edge drive ball mill.
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