Tongli slag ball mill is a kind of equipment used to crush solid materials such as slag and coal cinder. It is widely used in cement, metallurgy, chemical industry and other industries. Slag is a by-product produced in the process of blast furnace ironmaking. It has high hardness and density. It needs to be ground to an appropriate particle size by a ball mill before it can be further used. The slag ball mill consists of the main parts such as the feeding part, the discharging part, the rotating part, and the transmission part (reducer, small transmission gear, motor, electronic control). The hollow shaft is made of cast steel, the inner lining is removable, the rotating large gear is processed by casting hobbing, and the cylinder is inlaid with wear-resistant lining, which has good wear resistance. The machine runs smoothly and works reliably. Tongli slag ball mill adopts optimized design, which can reduce energy consumption, usually saving 20%-30% energy compared with traditional equipment.
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The cylinder is made of wear-resistant materials, and the grinding media are generally steel balls or steel segments, which can effectively improve the grinding efficiency.
The grinding parameters such as rotation speed and proportion of grinding media can be adjusted according to different materials and production requirements to achieve the best production effect.
The sound insulation design and shock absorption system are adopted to effectively reduce the noise generated during operation.
Model | Cylinder Rotation Speed (r/min) | Ball Load (t) | Feed Particle Size (mm) | Discharge Particle Size (mm) | Capacity (t/h) | Motor Power (kW) | Total Weight (t) |
Ф900×1800 | 36-38 | 1.5 | <20 | 0.075-0.89 | 0.65-2 | 18.5 | 5.85 |
Ф900×3000 | 36 | 2.7 | <20 | 0.075-0.89 | 1.1-3.5 | 22 | 6.98 |
Ф1200×2400 | 36 | 3 | <25 | 0.075-0.6 | 1.5-4.8 | 30 | 13.6 |
Ф1200×3000 | 36 | 3.5 | <25 | 0.074-0.4 | 1.6-5 | 37 | 14.3 |
Ф1200×4500 | 32.4 | 5 | <25 | 0.074-0.4 | 1.6-5.8 | 55 | 15.6 |
Ф1500×3000 | 29.7 | 7.5 | <25 | 0.074-0.4 | 2-5 | 75 | 19.5 |
Ф1500×4500 | 27 | 11 | <25 | 0.074-0.4 | 3-6 | 110 | 22 |
Ф1500×5700 | 28 | 12 | <25 | 0.074-0.4 | 3.5-6 | 130 | 25.8 |
Ф1830×3000 | 25.4 | 11 | <25 | 0.074-0.4 | 4-10 | 130 | 34.5 |
Ф1830×4500 | 25.4 | 15 | <25 | 0.074-0.4 | 4.5-12 | 155 | 38 |
Ф1830×6400 | 24.1 | 21 | <25 | 0.074-0.4 | 6.5-15 | 210 | 43 |
Ф1830×7000 | 24.1 | 23 | <25 | 0.074-0.4 | 7.5-17 | 245 | 43.8 |
Ф2100×3000 | 23.7 | 15 | <25 | 0.074-0.4 | 6.5-36 | 155 | 45 |
Ф2100×4500 | 23.7 | 24 | <25 | 0.074-0.4 | 8-43 | 245 | 56 |
Ф2100×7000 | 23.7 | 26 | <25 | 0.074-0.4 | 12-48 | 280 | 59.5 |
Ф2200×4500 | 21.5 | 27 | <25 | 0.074-0.4 | 9-45 | 280 | 54.5 |
Ф2200×6500 | 21.7 | 35 | <25 | 0.074-0.4 | 14-26 | 380 | 61 |
Ф2200×7000 | 21.7 | 35 | <25 | 0.074-0.4 | 15-28 | 380 | 62.5 |
Ф2200×7500 | 21.7 | 35 | <25 | 0.074-0.4 | 15-30 | 380 | 64.8 |
Ф2400×3000 | 21 | 23 | <25 | 0.074-0.4 | 7-50 | 245 | 58 |
Ф2400×4500 | 21 | 30 | <25 | 0.074-0.4 | 8.5-60 | 320 | 72 |
Ф2700×4000 | 20.7 | 40 | <25 | 0.074-0.4 | 22-80 | 380 | 95 |
Ф2700×4500 | 20.7 | 48 | <25 | 0.074-0.4 | 26-90 | 480 | 102 |
Ф3200×4500 | 18 | 65 | <25 | 0.074-0.4 | According to process conditions | 630 | 149 |
Ф3600×4500 | 17 | 90 | <25 | 0.074-0.4 | According to process conditions | 850 | 169 |
Ф3600×6000 | 17 | 110 | <25 | 0.074-0.4 | According to process conditions | 1250 | 198 |
Ф3600×8500 | 18 | 131 | <25 | 0.074-0.4 | 45.8-256 | 1800 | 260 |
Ф4000×5000 | 16.9 | 121 | <25 | 0.074-0.4 | 45-208 | 1500 | 230 |
Ф4000×6000 | 16.9 | 146 | <25 | 0.074-0.4 | 65-248 | 1600 | 242 |
Ф4000×6700 | 16.9 | 149 | <25 | 0.074-0.4 | 75-252 | 1800 | 249 |
Ф4500×6400 | 15.6 | 172 | <25 | 0.074-0.4 | 84-306 | 2000 | 280 |
Ф5030×6400 | 14.4 | 216 | <25 | 0.074-0.4 | 98-386 | 2500 | 320 |
Ф5030×8300 | 14.4 | 266 | <25 | 0.074-0.4 | 118-500 | 3300 | 403 |
Ф5500×8500 | 13.8 | 338 | <25 | 0.074-0.4 | 148-615 | 4500 | 525 |
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Feeding System: The feeding system of a slag ball mill introduces slag into the mill cylinder at a specific granularity and quantity. This system generally includes components like a feed hopper and conveying devices to ensure an even distribution of slag into the mill cylinder.
Mill Cylinder: The mill cylinder is the core component of the ball mill, typically designed as a horizontally placed cylindrical structure. The cylinder is driven to rotate by a motor and a reducer. As it rotates, the centrifugal force generated causes the grinding media (balls) and slag to be lifted and fall along the inner wall of the cylinder.
Grinding Media: Inside the cylinder, a large number of grinding balls are placed. These balls can be made of steel, cast iron, or other wear-resistant materials. With the rotation of the cylinder, the balls roll and tumble along the wall, grinding the slag particles through impact, friction, and compression.
Grinding Process: The constant interaction between the grinding balls and the slag particles results in the particles being continuously crushed. As the balls roll and tumble, they grind the slag finer and finer.
Classification Device: Slag ball mills are usually equipped with classification devices like spiral classifiers or cyclones. These devices separate the finely ground slag powder from the coarser particles. Only materials that reach the desired fineness level can exit the mill.
Discharge System: The ground slag exits the cylinder through the discharge system at the opposite end. The discharge system is designed to ensure smooth outflow and prevent clogging.
Dust Cleaning System: To maintain smooth operation and grinding efficiency, slag ball mills are often equipped with dust cleaning systems such as pulse jet systems. These systems clean the dust from filter bags, ensuring effective dust removal and maintaining the equipment's performance.
Increasing the rotation speed of the mill cylinder can enhance the centrifugal force of the grinding balls, thereby improving grinding efficiency. However, excessively high speeds may lead to excessive wear on the balls and the cylinder, so a balance must be found between increased speed and equipment safety.
Adjusting the filling rate of the grinding balls inside the cylinder can affect the mill's output.
Appropriately increasing the ball filling can improve grinding efficiency, but too many balls may increase the mill's load, affecting normal operation.
Choosing the appropriate size of grinding balls is important; larger balls are usually suitable for handling harder slag, while smaller balls are better for finer grinding. By adjusting the diameter and material of the balls, you can improve both grinding effect and output.
Using wear-resistant materials to manufacture the grinding balls, such as high-chromium cast iron balls or steel balls, can extend their lifespan and reduce replacement frequency, thereby increasing equipment uptime and output.
Ensuring uniform feeding of slag is essential to avoid overload or material blockage inside the mill. A consistent feeding system can enhance production efficiency.
Pre-treating the slag, such as by crushing or screening before it enters the mill, can reduce the mill's load and improve grinding efficiency.
Regularly inspect the wear condition of the mill cylinder liner to check for cracks, chipping, or excessive wear. Based on the inspection results, promptly replace or repair the liner to prevent further deterioration. Check the wear condition of the grinding balls to ensure the diameter and quantity meet production needs. Add or replace grinding balls as needed to maintain good grinding performance..
Regularly check the operating status of the bearings and the working condition of the lubrication system to ensure the lubricant is sufficient and uncontaminated. Replace the lubricant as needed, and clean or replace the filters in the lubrication system to ensure proper bearing lubrication. Regularly clean dust and residual abrasive materials inside the mill cylinder, and check the discharge system for blockages. Inspect and clean the dust removal system's filter bags or cartridges to ensure effective dust control.
Use a monitoring system to track the operating status of the equipment in real-time, including temperature, vibration, and noise levels. Regularly analyze the monitoring data to promptly detect and address any abnormalities to avoid equipment failure. Keep detailed records of each maintenance activity, including inspection items, repair measures, and replaced components. Refer to the equipment's operation manual and maintenance guide, and follow the manufacturer's recommended maintenance procedures.
Cement Production: A slag ball mill is used to grind blast furnace slag into slag powder, which serves as an admixture in cement production. Slag cement exhibits good strength and durability, making it widely used in construction and infrastructure projects.
Slag Processing: In the metallurgical industry, slag ball mills are used to process blast furnace slag and other smelting by-products, grinding them into fine powder. This processed slag can be used to produce various metal materials or as filler in other industrial applications.
Building Materials: Besides cement, slag ball mills are also used in the production of various construction materials, such as cement mixtures and slag bricks. Slag powder acts as an effective active admixture in construction materials, enhancing the performance and durability of the final products.
Chemical Production: In the chemical industry, slag ball mills can grind slag and other solid materials to provide the fine powder needed for the production of fertilizers, chemical additives, and other products.
Fly Ash Processing: In the coal industry, slag ball mills can be used to grind fly ash. The processed fly ash can serve as a useful industrial material, such as in cement production or other construction materials.
Waste Treatment: Slag ball mills can be utilized to process various solid wastes, including industrial residues and mine tailings, turning them into reusable by-products through grinding, thereby reducing environmental pollution.
Fine Powder Production: Slag ball mills are also applicable in industries that require fine powders, such as papermaking, ceramics, and glass. The grinding process can enhance material properties or serve various purposes in the production process.
Excessive Grinding Media Wear and Noise: Severe wear of the grinding media, foreign objects inside the equipment, and loose or damaged mechanical parts can result in excessive operational noise. It is essential to regularly inspect the wear condition of the grinding media and replace them promptly. Clean out any foreign objects inside the equipment to ensure smooth operation. Check the fastening of mechanical parts and repair or replace any damaged components.
Overheating: Overheating can be caused by overloading or prolonged continuous operation, insufficient lubrication, cooling system failures, or excessively high environmental temperatures. To prevent overheating, avoid overloading the equipment and schedule reasonable working hours. Inspect and maintain the lubrication and cooling systems to ensure they are functioning correctly. Ensure proper ventilation and cooling of the working environment.
Other Common Problems: Slag ball mills may also encounter issues such as insufficient output, low grinding efficiency, abnormal noise and vibration, material blockage, and high energy consumption. To effectively address these issues, regularly inspect the equipment's condition, adjust operating parameters, maintain lubrication and ventilation systems, replace worn parts in a timely manner, and control material moisture levels.
High temperatures can cause equipment to overheat, leading to the degradation of lubricating oil or grease, which increases mechanical wear and energy consumption. It is essential to enhance the maintenance of the cooling system to ensure the equipment operates within the appropriate temperature range. Using lubricants and coolants suitable for high-temperature environments is also recommended.
High humidity can cause equipment components, especially metal parts, to rust, increasing the risk of corrosion and affecting the stability and lifespan of the equipment. Regular inspections and maintenance of anti-rust measures, such as applying anti-rust oil, are necessary. Ensuring proper ventilation and drying of the equipment can reduce the impact of moisture. Using moisture-proof materials and covers can also help minimize moisture intrusion.
Rainfall can lead to the external parts of the equipment getting wet, increasing the risk of corrosion and electrical system failures. Ensuring that the equipment's roof or rainproof measures are intact is crucial to avoid direct exposure to rain. Adopting appropriate preventive and maintenance measures for different climate environments can effectively reduce the impact on the slag ball mill, improving its stability and longevity. Regular inspections and proper maintenance are key to mitigating the effects of climate conditions.
An important raw material for aluminum refining. Ball milling can improve the refining efficiency.
An important raw material for making ceramics and glass. Ball milling can grind it to improve the transparency of the product.
Used in glass manufacturing and foundry industry. Ball milling can improve the product quality.
The basic material for brick and ceramic making. Ball milling can crush it to make it uniform.
Used as a flux for steel smelting. Ball milling can increase its reaction speed.
An important component for making stainless steel. Ball milling can help extract chromium.
Used in cosmetics and medicine. Ball milling can improve the fineness of the product.
An important raw material for making refractory materials. Ball milling can improve the refractory properties.
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