roller crusher | single/double roll crushers - jsxc mine
The material falls between the two rollers through the feeding opening to squeezing and crushing. Then the finished material falls naturally. In the case of hard or no broken, the role can automatically retreat under the action of hydraulic cylinder or spring. The gap between the roller increase, and the hard or not broken material fall that can protect the machine from damage. The relative rotation of the two rollers have a certain gap, change the gap, you can control the product discharge granularity. Double-roll crusher is the use of a pair of opposite rotation of the Round Roller, four-roll crusher is the use of two pairs of opposite rotation of the Round Roller crushing operations
3. If the feed material is not uniform along the length of the roller, the roller surface will not only wear quickly but also wear unevenly at every point. The annular groove appears will damage the normal crushing work, the particle size of a crushing product is not uniform. Therefore, in addition to the roller crusher used for coarse crushing, the medium and fine crushing roller crusher is usually equipped with a feeder machine to ensure continuous and uniform feeding. And the length of the feeder is equal to the length of the roller that makes the feed is uniform along the direction of the length of the roller
4. Reasonable maintenance and proper operation can ensure long-term continuous work, reduce parking time. Only the normal management and daily check the normal working conditions, can prevent failure and ensure continuity of service
(1) Pay attention to the fastening of the bolts of each component and tighten them immediately if found loose;
(2) Before the work must start the crusher, wait for the speed in normal, then feed materials. The procedure is opposite when stopping;
(3) Check the outlet regularly and remove the blockage if found;
(4) Pay attention to check the wear degree of the wearing parts, at any time pay attention to the replacement of worn parts;
(5) No overload and the electrical instruments keep under constant care;
(6) The bearing oil should be timely, and do not make the bearing oil leakage;
(7) Control the bearing temperature, the temperature rise should not be higher than the surrounding air 25 ~ 30 °C;
(8) Dust and other materials should be removed from the underframe plane of the movable device to prevent the movable bearing from moving on the underframe when the roller crusher encounters unbreakable materials, which may cause serious accidents
The roller crusher composes of a roller wheel, roller supporting bearing, pressing and adjusting device and driving device. The crushing roller is the main working mechanism of the crusher, which is composed of shaft, wheel hub and roll cover. The wearing degree of roll top has a great influence on the working efficiency of roll crusher. Only when the roll top is in good condition, the crusher can get higher production capacity. Because of the importance of roller, it is of great significance to understand the factors affecting roller wear and correct repair of roller
(1) The material is distributed evenly as far as possible to reduce the wear degree of the ring groove, and roller skin on the surface of the roller;
(2) In the operation of the crusher, especially in the process of coarse crushing. Attent to the size of the ore blocks, to prevent the ore blocks from being too large. It will make severe vibration of the crusher, thus seriously wearing the roll skin;
(3) The selection of roller skin with good wear resistance can reduce the wear degree of roller skin and prolong the service life of Roller;
(4) the length of the feeder shall be the same as the length of the rollers to ensure uniform feeding along the length of the rollers. In addition, in order to continuously feed the ore, the speed of the feeder should be 1-3 times faster than the speed of the stick;
(5) Often check the size of the broken product and move one of the rollers along the axis for a certain period of time, the distance is about 1 / 3 of the size of the ore
Double Roll crushers are the most common type of roll crushers. The crusher machine uses two opposite rotating rollers to crush the material. It is composed of an electric motor, support, a fixed roller, a movable roller, a safety spring, etc. With smooth and serrated surfaces. The bearings of the active rollers can move along the frame which supported by strong safety springs. The bearing will remove out and spit out the article if the feed material is very hard. The roll surface has smooth and sawtooth
Two Roll surface is smooth that mainly play the role of extrusion grinding crushing on the material. This equipment often uses for clay, coal, clinker and limestone and other materials in the fine crushing work. The roller surface with the sawtooth of the two rollers. The machine mainly plays the role of cracking and tearing. The equipment is mainly to complete the bulk crushing of materials. The smooth surface of one roll and the sawtooth of the other roll that mainly to play the role of extrusion, bending and grinding on the material. This type of double-roller crusher mainly uses to crushing clay and coal
If you know the price of a roller crusher machine. Please contact us, we are the stone crusher manufacturer who sale jaw crusher, cone crushing, impact crusher, crushing and screening equipment, and sand making/washing machine
Jiangxi Shicheng stone crusher manufacturer is a new and high-tech factory specialized in R&D and manufacturing crushing lines, beneficial equipment,sand-making machinery and grinding plants.
small rock crusher for sale, mini stone crushing machine
Small rock crusher, also called as mini stone crushing machine, is such a machine which is designed for the large rocks decrease becoming small rock, gravel, or rock dust. It will produce the gravel stones and the mining ores, or the filling material used to beautify and erosion control. They can be used with the cement making machine. Small rock crusher can move (though usually is very heavy), and it also can be fixed
As China's economic construction is growing, the domestic real estate and high-speed way construction develops rapidly, which make small rock crusher industry has a rapid development. Small rock crusher production specifications will be from single crusher development to a variety of specifications and various types of a variety of small crusher. Compound crusher, one of the new types of small rock crusher, also develops gradually. It has a significantly improvement of compound rock crusher recent years
Small rock crusher design is novel which adopts the design principle of the new concept crushing technology. This machine can satisfy the crushing requirements of different material. Small rock crusher will meet the new technology of "more crushing less grinding" requirements. It has large crushing ratio, uniform and fine end products. The unit power consumption is low and it has fewer requirements for the crushed materials' humidity requirements. It is also suitable for any hard brittle materials or other various kinds of minerals. Through large engineering, the small rock crusher shows that it has good application prospect in the field of mineral processing equipment
There are many factors impacting the small rock crusher production capacity:
The hardness of the material. More hard material, it is more difficult to break, and this will cause serious wear. When the machine crushes hard materials, it has slow crushing speed and the crushing capacity will be small.
The humidity of materials. When the material has large moisture content, it is easy adhesion when the small rock crusher works. It is also easy to jam in the process of the material transporting, which will reduce the crushing capacity.
The fineness of crushed materials. If you need the high fineness, which means the end products are very fine, the crushing capacity will be small.
The composition of the material. Before crushing, it will influence the crushing capacity if the materials have much more fine powder. Because the fine powder will affect the delivery, you should separate the fine powder before crushing stage
According to different customers' various needs, SBM can offer you the advanced machines and high technology, especially the small rock crusher for sale. The small crushing equipment is suitable for the crushing of materials in the industries of metallurgy, building, road paving, chemical and silicate. It can crush kinds of ores and rocks with the hardness of medium and above medium. All around and considerate service is also provided to all the clients.
Its fully-enclosed layout features high integration. It integrates the functions of high-efficiency sand making, particle shape optimization, filler content control, gradation control, water content control, and environmental protection into a single syst
Base on decades of years’ R&D experience and thousands of clients’ production experience, SBM updated our tranditional vibrating feeder and developped the TSW series feeder, which can greatly improve the whole production line capacity
4 types of stone crushers' maintenance and efficient
There are different types of stone crushers in mining industry such as jaw crusher, cone crusher, impact crusher, and sand making machine. This article will tell you how to maintain the 4 types of rock crushers and how to efficicently improve their performance.
Many stone crusher operators have a common coception that is "don't-fix-it-if-it-isn't-broke". They may want to save cost at the begining while the consequence is that they have to spend more money on repair and face interuption on production. That's why I always say that preventive and predictive is very improtent for all types of stone crusher.
Preventive means that by making regular checklist and inspections to keep crushers in good condition. Maintenance checklist is usually set up on a daily (8 hours), weekly (40 hours), monthly (200 hours), yearly (2,000 hours). Only doing that, can you prolong the machine's life span and maximize its value in crushing process.
Predictive refers to mornitoring the condition of crusher when it is running. By some maintenance tools such as lubricating oil temperature sensors, lubricating oil filter condition indicator, you can timely draw the machine data so that making a comparison between the real situation and normal state. Predictive can help you find problem early then timely removing thers issues before demage occuring.
Ractive means that even if your crushers have got problems, as long as you adopt correct solutions to respond, you still can get your machine back to normal. Next, I'll introduce important skills to maintain your equipment.
The cone crusher in the secondary or tertiary crushing proccess often fractures medium-hard or hard rocks like pebble, quartz, granite, etc. It is easy to get premature crusher failure, if operators cannot make a correct and timely inspection and maintenance.
Mantle in moveable cone and concave is fixed cone. Due to directly contacting with rock materials, the two wear parts need frequent maintenance and protection. So operators have to know the preparations and maintaining skills.
The working principle of impact crusher is that the spinning rotor under the driving of the motor can genetate strong impact force which make blow bars crush stone material into small pieces. Then the crushed material would be thrown by hammers towards, which makes another crushing process "stone to stone".
The sand making machine is also known as the vertical shaft impact crusher. Its working mode is that the material falls vertically from the upper part of the machine into the high-speed rotating impeller. The impeller is one of the important parts of the sand making machine, and it is also the most vulnerable part.
After the materials collide with each other, they will be pulverized and smashed between the impeller for multiple times and discharged from the lower part. The materials crushed by the device have an excellent particle size and are suitable for aggregate shaping, artificial sand making and highway construction.