Sand Sifter Machine Vibrating Sieve Rotary Vibrating Screen
The linear vibrating screen is very suitable for assembly line operation, and it has the advantages of low energy consumption, high output, automatic discharge and so on, which makes up less for it in the mining industry. The general screening process is that the materials evenly enter the feed inlet of the equipment from the feeder, and the materials above and below the screen are generated through the screen, and discharged from their respective outlets.
In the mine production site, the vibrating screen is a common equipment, which requires screening and dewatering of materials. As it is a large equipment and the workload of the equipment is large, the maintenance of the vibrating screen should be done well at ordinary times, and the lubrication and maintenance can ensure the normal operation of the vibrating screen. So what kind of lubrication is good for the vibrating screen? Generally, there are two types of lubrication, oil lubrication and grease lubrication.
1, Lubrication mode of vibrating screen
1. Vibrating screen oil lubrication
The lubricating oil has strong fluidity and dispersion, so the oil-lubricated seal must be safe and reliable. The sealing device is more complex than grease lubrication, and it is difficult to disassemble and maintain. Oil lubrication is generally applicable to the environment where the bearing operates at high speed or the bearing temperature is high. The commonly used lubrication methods of oil lubrication include oil bath lubrication, circulating oil lubrication, oil drip lubrication, oil spray lubrication and oil gas lubrication.
2. Vibrating screen grease lubrication
The lubricating grease has strong adhesion, is not easy to lose, and has good compression resistance. Due to the weak fluidity of lubricating grease, the grease lubrication sealing device is relatively simple, convenient for disassembly and maintenance, and does not need a special oil supply system. Grease lubrication is generally applicable to low and medium speed and moderate temperature. Common lubricating greases include calcium base grease, sodium base grease, aluminum base grease, general lithium base grease, extreme pressure lithium base grease and molybdenum disulfide extreme pressure lithium base grease,
2, Characteristics of lubrication mode of vibrating screen
1. Characteristics of oil lubrication of vibrating screen
Oil bath lubrication
Use the rotation of the bearing itself to drive the lubricating oil to lubricate the bearing, and the lubricating oil after lubrication flows back to the oil tank: but this lubrication needs to control the amount of oil. In general, the upper height of the lubricating oil is slightly lower than the bearing center line: the amount of oil is too much, and the bearing resistance increases, causing the bearing to heat, the amount of oil is too little, and it can not play the role of lubrication, thus reducing the service life of the bearing: it is mainly used for bearings with medium and low speed, and the application range is large.
Circulating oil lubrication
The oil inlet and outlet are set on the seat. When the bearing is running, the oil pump is used to pump the lubricating oil from the oil inlet to the bearing, and the oil from the oil outlet is filtered and cooled. This method not only lubricates the bearing, but also cools the bearing; It is generally used for bearings with high speed.
Drip lubrication
The lubricating oil drops onto the friction pair by its own weight, usually every 3 to 8 seconds, because too much oil will increase the temperature rise of the bearing; This lubrication is mainly used on friction pairs with small quantity and easy access, such as gears and racks, and on bearing parts requiring quantitative supply of lubricating oil.
Oil injection lubrication
The lubricating oil is sprayed from one end of the bearing to the bearing by high-pressure injection method, and the lubricating oil flows into the oil tank from the other end; This method can effectively lubricate the bearing, but it has certain requirements for the position and injection speed of the high-pressure nozzle. The high-pressure nozzle is located between the inner ring and the cage, and the injection speed is greater than 15 meters per second, and the lubricating oil is directly sprayed into the bearing; This lubrication is applicable to high-speed running bearings bearing medium and low loads.
Oil and gas lubrication
Use compressed air to mix with a little lubricating oil to form an oil mist and spray it into the bearing in service; This method plays a cooling role while lubricating the bearing. Compared with other lubrication methods, it can make its operating temperature lower and allow the bearing speed to reach. This lubrication is applicable to bearings under high speed, high temperature and heavy load.
2. Characteristics of vibrating screen grease lubrication
Calcium-based grease
Good water resistance and poor heat resistance. The service temperature is less than 60 ºC, and the shear resistance is poor at high speed. It is suitable for low temperature, medium and low load, medium and low speed humid environment or lubrication places in contact with water, with low price.
Sodium grease
It has poor water resistance, general heat resistance and rust resistance, and is applicable to the lubrication of low-speed and medium-load mechanical equipment within the temperature range of - 10 to 100 degrees. It is not applicable to the lubrication parts in contact with water, and the price is low.
Aluminum base grease
High water resistance, poor heat resistance, service temperature less than 50 ºC, suitable for corrosion protection of metal surface and friction parts of shipping machinery under medium and high load and low speed, with low price.
General lithium grease
It has good water resistance, heat resistance, mechanical stability, abrasion resistance and oxidation stability, and is applicable to the lubrication of rolling bearings, sliding bearings and other friction parts of various mechanical equipment within the working temperature range of - 20 to 120 degrees. It is mostly used at medium-high load and medium-low speed. The price is moderate.
Lithium grease
It has good heat resistance, water resistance, rust resistance, and good extreme pressure performance. It is suitable for the lubrication of bearings and gears of mechanical equipment with high load and medium speed at working temperature of - 20 to 120 degrees, and can also be used for centralized lubrication system, with moderate price.
Molybdenum disulfide lithium grease
It is applicable to the lubrication of heavy-duty gears and bearings of internal steel rolling machinery, mining machinery, heavy lifting machinery, etc. with working temperature of - 10 to 120 degrees, and can also be used for parts with impact load, generally used for medium speed, with moderate price.
3, Precautions for vibrating screen lubrication
1. After the shale shaker is transported to the site, it should be refueled once after four hours. The vibration exciter bearing shall be lubricated. The lubricating grease shall be selected for the bearing and shall not be mixed with other varieties. When replacing the new grease, the original grease shall be cleaned.
2. After starting production, replenish oil every 24 hours, and inject 60-80g oil each time; Grease should also be added according to the actual situation to ensure that the screener bearings work with sufficient grease.
3. The initial oil filling of the bearing is 1/3-2/3 of the bearing space. It should not be too much to avoid the bearing heating. Use a high-pressure oil gun or oil pump to inject oil through the pipe joint.
4. Remove and clean the bearing every half a year.
5. All lubricating points and oil seals shall be free of oil leakage.
The above is the answer about what kind of lubrication is good for the vibrating screen. In order to fully play the function of the bearing, proper lubrication methods and lubricants must be adopted according to the influence factors of the use environment to achieve good lubrication protection effect. Lubrication affects the working state of the vibrating screen equipment to a large extent, so it is very important to do a good job in the lubrication and maintenance of all parts of the vibrating screen.
Product Category: Fine Screening Series
TS series ultrasonic vibrating screen can screen heavy, light, fine, and strong adsorption powders that cannot be separated by ordinary screening machines and can solve many difficult-to-screen powders.
Overview of ultrasonic vibrating screen
The ultrasonic vibrating screen is an ordinary rotary vibrating screen with an ultrasonic mesh frame, which converts the ultrasonic waves into high-frequency mechanical waves through an ultrasonic power source and an ultrasonic transducer, and transmits them to the screen surface to achieve good screening purposes.
The ultrasonic vibrating screen can solve the heavy, light, fine, and strong adsorption powder that cannot be separated by ordinary screening machines. The ultrasonic vibration wave (mechanical wave) attached to the screen can make the fine powder accept the ultrasonic acceleration and improve the low-density powder. Gravity settlement (light contact between the powder and the mesh port), slip effect, improve the retention or wedging of high-density metal at the mesh port, and improve the adhesion effect of electrostatic powder, thereby improving screening efficiency and screening. quality. Expressed by the sieving pass rate, in general, the pass rate is increased by 50%-400% compared with no ultrasonic vibrating screen.
Structure diagram of ultrasonic vibrating screen
Experiment comparison between ultrasonic vibrating screen and ordinary vibrating screen
Compared with ordinary vibrating screen, the ultrasonic vibrating screen has the following technical advantages
1. Screening capacity and higher screening accuracy, to achieve high-precision screening, the accuracy can be increased by 1-70%, and the output can be increased by 0.5-10 times.
2. It can prevent the screen from clogging, and the materials that are difficult to screen will hardly block the mesh. Capable of controlling a narrow particle size range.
3. It can solve the screening problems of materials with strong adsorption, easy agglomeration, high static electricity, and light-specific gravity.
4. The characteristics of the screened materials remain unchanged.
5. Digital signal input to realize automatic frequency tracking.
6. The energy conversion efficiency of the transducer is high (reaching the standard of foreign counterparts).
7. Continuous work for 24 hours, control power supply and transducer do not need to cool down.
8. The transducer and the screen are connected by screws, which are easy to disassemble and clean.
9. Separate structure, with resonance ring, good effect, and long life of the screen.
10. It can sieve 25μ blue powder and 10μ blue liquid.
11. There is no need for rubber balls to clean the net, and there is no recontamination caused by rubber wear.
12. Adhesive screen fixed mesh frame, no dead angle, uniform force, easy to replace.
Expanded use of ultrasound systems
Use the same ultrasonic power supply to connect a net-cleaning transducer, and use the radiating surface of the ultrasonic transducer to contact the blocked net surface, and the relative displacement can clear the blockage of the net port. It has the advantages of rapidly improving the quality of cleaning, without changing the size of the mesh opening, and without harming the surface quality of the wire mesh, and can be widely used in test sieves and working sieves.
Ultrasonic vibrating screen industry application
Silicon carbide, brown corundum, white corundum, molybdenum powder, tungsten powder, cobalt powder, nickel powder, stainless steel powder, alloy powder, powder coating, quartz powder, diamond powder, electromagnetic powder, laser powder, aluminum powder, electrolytic copper powder, grinding Powder, refractory materials, luminous powder, glass beads, rubber additives, powdered sugar, starch, salt, soy milk powder, API intermediates and other materials that are not easy to be screened by ordinary sieves.
Real photo of ultrasonic vibrating screen workshop
Ultrasonic vibrating screen power box
Ultrasonic vibrating screen frame
Shipment and transportation
After you place the order and pay the deposit, we will start to arrange the production and contact the ocean freight transportation agency to reserve the position. Two days before the end of production, we informed the ocean cargo transportation agency that it was ready to pull the goods to the port. On the day of delivery, we will send the customer the factory video and pictures, and mark the corresponding English name of each product and product parts with a marker to prevent the customer from not knowing what each part is after receiving the goods. Then, it is sealed in wooden cases. At the same time, we will put the English version of the product instructions in the cargo box. We generally select freight forwarders with preferential prices for customers to deliver goods for you. The shipping method can be FOB or CIF. You can also choose EXW, and then contact the goods agent company yourself.
FAQ
1. Who are we?
Our headquarters is located in Henan, China, and our factory was established in 2002. At present, there are more than 100 workers, technical engineers, foreign trade sales personnel, and administrative personnel. The factory covers an area of more than 2000 square kilometers and is mainly engaged in vibrating screening and conveying and feeding equipment.
2. How do we guarantee the quality?
Always provide pre-production samples before mass production; Always carry out a final inspection before shipment.
3. What can you buy from us?
You can purchase a vibrating screen, roller screens, rotary screen, vacuum conveyor, mixer, and customized vibrating machinery and conveying equipment in our factory.
4. What are our strengths?
As one of the old enterprises in the screening industry, Tianfeng has provided a large number of screening equipment and systems at home and abroad. Mass production, rapid delivery, stable quality, affordable price, and excellent after-sales service have become the symbols of Tianfeng.
5. What services can we provide?
Accepted delivery conditions: FOB, CFR, CIF, EXW, CIP, FCA, CPT, DDP, express;
Accepted payment currency: USD, EUR, RMB;
Type of payment accepted: telegraphic transfer, letter of credit, express remittance, credit card, PayPal, Western Union remittance, cash, custody;
Oral: English, Chinese, French.
6. What information do we need to help you choose a perfect machine?
-Name and characteristics of raw materials.
-Purpose of use: remove impurities, filter, and grade.
-Processing capacity: kg/h, L/h.
-Raw material size: (mesh or mm).
-How many floors do you need?
-Voltage, frequency, phase (single-phase or three-phase) Note: You'd better send us the relevant pictures or materials you want to filter, which can ensure that we recommend the appropriate machine for you.
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