The material is fed by the vibrating feeder firstly, and a part of the soil can be screened out in advance. After crushing by jaw crusher, the stone is sifted by the vibration screen, and then into impact crusher with three chambers. Finally, the crushed stone is sent into the vibrating screen for screening again where 3 kinds of finished products (0-5-20-30mm) are discharged.
Location:Saham, Oman Material:Limestone Input Size:Below 720mm Output Size:0-5mm, 5-10mm, 10-20mm, (Oman standard) Capacity:300t/h
Location:Russia Material:Plagiogranite Input Size:Below 700mm Output Size:0-5mm, 40-70mm (0-5mm, 5-10mm, 10-20mm) Capacity:300-350t/h
Location:Mecca Material:Granite Input Size:Below 1000mm Output Size:0-10mm, 10-13mm, 13-20mm, 20-25mm Capacity:400-500TPH (12 hours per day)
The high-grade fossil limestone or nummulitic limestone deposits of Assam are geologically known as Sylhet limestone as these belong to that groups of rocks. The limestone deposits are confined in areas of Garo hills, united Khasi and Jaintia hills, Cachar hills and Mikir hills. One of the largest outcrops of limestone is at the foot of the Khasi hills. Vast deposits of high-grade limestone are best observed in the Jowai area. Lime stones of the Khasi and Jaintia hills can be used for manufacture of cement and for lime-burning purposes. It can be used in chemical industries and for metallurgical purposes. The limestone deposits of the state offer vast scope for developing innumerable industries where limestone is required.
Limestone occurrence in Assam are confined to North Cachar Hills and Karbi Anglong districts. The Sylhet limestones continue into the North Cachar Hills across the Kharkor and Kopili rivers. They are found to cover an extensive area near Garampani to The north-east of the confluence of the two rivers. In Karbi Anglong, the principal occurrences are Silbheta-Meyong Disa,Chopung Hills,Jarapagaon,Koilajan Bar Harihajan and Doigrung. Of these the first two are rather high in iron even though the reserves are large;reserves in Silbheta-Meyong Disa are 38 million tonnes,in Chopang Hills 17 million tonnes and in Jarapagaon 6.5 million tonnes. The total reserves between Koilajan and Kidimithapa are of the order of 81 million tonnes of which 43 million tonnes are reckoned as being high in silica.
The State Directorate of Geology and Mining has proved that 3 million tonnes of these limestones are of cement grade. Average composition of the samples analysed gave,Ca0 47.20 per cent and Mg0 1.30 per cent. Silica varies between 8 and 12 per cent and alumina and ferric oxide 1 and 3 per cent and 2 and 4 per cent respectively. In Bar Harihajan of Karbi Anglong district,about 4.5 million tonnes are likely to be available at Saini Langso,Chota Harihajan and Disai Nala analysing. Exposures of limestones are known along the Doigrung river 19 kms. south of Golaghat but the quantity of reserves have not been estimated. One available analysis estimates CaCo3 72-90 per cent,MgCo3 7.33 per cent,Mg0+Al203 +Fe203 9.0 per cent and Insolubes 10.70 per cent.
Cement Manufacture constitutes the most important use of limestone. Next in order of importance is its use as a fluxing agent in the metallurgical industry. Other uses, apart from lime for building mortar,are in the manufacture of various chemicals,glass,refining of sugar,oil and as a filler.
As a result of the great development of the basic construction and the reconstruction of the towns and the rapid rise of the high-rise buildings, the old-style buildings die out, and the waste of the construction wastes is directly buried without treatment, Then it will cause long-lasting harm to our living environment. Crusher plant can deal with construction wastes well.
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Compared with the mobile crushing plant, the stationary crushing screen plant has no tires. In view of the present situation of construction waste treatment in our country, crushing plant has strong advantages, but with the increasing maturity of construction waste disposal market, it will slowly be transformed into fixed crushing plant, that is to say, mobile crushing station is transitional equipment, and slowly will be converted into fixed type.
It is mainly used for fields like metallurgical, chemical, building material, hydro-power that needs material processing, especially for highway, railway, hydro-power with the operation of mobile stone. Customers can choose multiple configuration according to types of raw material, size and finished material requirements.
Mobile crusher plant can not only reduce the cost of transportation, but also cooperate with brick making machine to make the raw material into finished products at one time. With the increasing market demand, various types of crushing plant are needed, such as jaw mobile crushing plant, tire mobile crushing plant and other types. These plants can produce product with high quality, high crushing ratio, reliable performance.
Vibration feeder takes eccentric shaft as excitation source, gear transmission, low noise, stable operation, long life, and it can screen fine material in advance to make crusher more efficient. Adjust the gap grid design to prevent material blockage. Customers can selectively install speed-regulating motor, easy to control the feed quantity, no need for frequent start-up of the motor.
Circular vibrating screen is a kind of screening machine, which mainly produces centrifugal inertia force (excitation force) with radial variation because of the unbalanced rotation of the vibrating wheel of the exciter. Itdrives the screen box and makes the screen vibrate. The trajectory of the screen frame is elliptical. The material on the screen is thrown up by the upward movement of the screen surface, and then falls back to the screen surface after a distance. In this way, the screening is completed in the process of moving from the feed end to the discharge end. The amplitude of the vibrating screen can be adjusted by changing the weight and position of the counterweight.
As far as the counterattack crusher is concerned, the rotor rotates at high speed under the drive of the motor while working, and the material entered from the feed port is hit by the plate hammer on the rotor, which is broken by the high speed impact of the plate hammer; the broken material is hit back on the liner and broken again; later, it is discharged from the outlet. Adjusting the gap between counterattack frame and rotor frame can change the particle size and shape of material.
The material is uniformly transported into the crusher through the feeder, and after the crusher is initially broken, the closed circuit system is formed by the circular vibrating screen to realize the cyclic crushing of the material, and the material in accordance with the grain size requirements is output by the conveyor, so as to achieve the production purpose.
Before the operation, check whether the supporting equipment can run normally, such as crusher, feeder, and so on, whether the connection of these supporting equipment is loose or falling off, and whether the transmission device is abnormal. Especially the crusher, ensure that there is no residual materials in the crusher. In addition, because the working environment of the stone crushing plant is complex, the tire of the mobile crushing station is a vulnerable part, the user should also check whether the tires can work normally before carrying out the operation, so as to ensure the overall performance and normal operation.
The circuit problem of the whole machine in the operation process is a problem that the user needs to pay attention to. If there are special noises, odors or sparks in the working process, stop the operation immediately, maintain in time and never work by force. Otherwise, the whole equipment and motor may be damaged, and it is easy to cause inestimable losses to the user.
Before the stop of the crushing plant, the user must ensure that all the equipment can stop after all the materials are discharged. After the mobile crusher stops, the user should also check the circuit of the equipment, the supporting equipment and lubrication in time. For any abnormal condition, repair and maintain in time. In addition, due to the complexity of the working environment of the aggregate crushing plant, users need to clean and maintain the equipment in time after operation.
How to crush limestone? How much invest for the limestone crushing plant? How to start a stone aggregate making business? machine selection and processing plant layout design. . . . This article to answer these questions as much as possible, from limestone property, crushing circuit layout and rock crusher machine selection, complete production line investment estimation. Join us.
The compact limestone has a compressive strength of 20~120MPa and a density of 2000~2600 kg/m3. When the clay impurities in the limestone exceed 3% to 4%, the frost resistance and water resistance are remarkably lowered. Siliceous limestone has high strength, high hardness and good durability. Most limestones are fine, hard and resistant to weathering, and are mainly used as building materials.
The large piece of limestone is uniform to the jaw crusher for primary crushing by the vibrating feeder; The primary crushed material and the fine material sieved by the vibrating feeder are conveyed to the impact crusher; The circular vibrating screen sieves the limestone after the impact crusher, and the large-grained limestone is returned to the impact crusher to re-crush, the qualified grade materials are graded and transported by the conveyor to different stockpiles.
JXSC supply complete aggregate making machine for various sand & gravel, pebble, limestone, basalt, granite, dolomite, etc. Includes jaw crusher, impact crusher, cone crusher, sand making machine, vibrating screen, vibrating feeder, sand washing machine, convey belt, etc.
The limestone jaw crusher is usually used as the first rock crusher, and it is suited for medium-size crushing of ore and bulk materials with a compressive strength of not more than 320Mpa. Jaw crusher is divided into coarse crushing and fine crushing. The feeding size is 125mm~750mm. It often forms a complete sandstone production line together with cone crusher, impact crusher and sand making machine.
Limestone medium crushing equipment recommended: impact crusher & cone crusher. The impact crusher can granite, limestone, concrete, and the like coarse materials with a side length of less than 500 mm and a compressive strength of less than 350 MPa. Impact crusher VS cone crusher Impact crusher has a lower price, uniform discharge, less needle-like crushed product. The cone crusher is slightly more expensive, but the wearing parts have a long life. In the long run, the cone crusher is more durable. Impact crusher VS hammer crusher The impact crusher has a larger crushing ratio and can more fully utilize the high-speed impact energy of the entire rotor. The impact crusher is easy to wear, which makes it limited in the application of hard material crushing.
Limestone fine crushing machine: VIS sand making machine, HX sand making machine, has a high stone crushing rate, high sanding rate, good finished grain shape. If you need clean sand finish products, use the sand washing machine for cleaning and dewatering.
3. Conveyor belt Responsible for the transportation of materials. The specific configuration of conveyor belts in a limestone crushing line needs to be combined with working conditions and processing requirements.
1. Stationary crushing plant Three-stage crushing process, high capacity Equipment: Vibrating Feeder + Jaw Crusher + Impact Crusher + Sand Making Machine + Round Vibrating Screen + Belt Conveyor 2. Mobile crushing plant Main Equipment: mobile jaw crusher + mobile impact crusher Flexible, small space, lower invest, easy to construct; intelligent design, secure and convenient one-button operation. 3. Semi-mobile crushing plant Capacity: 50-600t/h (the maximal capacity of the mobile and semi-mobile plant are less than that of stationary) Equipment: mobile jaw crusher + mobile impact crusher + sand making machine Movable, less limitation; PLC control system, real-time monitoring of equipment voltage, airflow, temperature, etc., touch screen display production data, operational error voice prompts, more secure. Dust removal.
JXSC is a well-known crusher manufacturer in China. With more than 20 high-tech patents, JXSC is a veritable high-tech enterprise. We produce a full set of limestone crushers, including jaw crusher, impact crusher, cone crusher, VSI impact crusher, vibrating screen, etc. In addition, we design the effective production line according to the actual situation to ensure safety and productivity.
Limestone gets into PE1000*1200 for coarse crushing and then enters into the PFW1315III hydraulic impact crusher for secondary crushing. After that, the screen works for sieving the material and then the material enters the VSI1149 impact crusher where it is processed to be finished product whose size is within 0-5mm.
European hydraulic impact crusher: heavy rotor, crushing ratio. The output rate is greatly improved. Unique fixed device makes the plate hammer more reliable. Hydraulic control system can quickly adjust discharge port size and discharging granularity. Automatic hydraulic top device can quickly complete the replacement of plate hammer if necessary and reduce downtime and maintenance time.
VSI sand making machine: It is an ideal machine for sand making and stone shaping. The fineness modulus of finished products can be adjusted. Meanwhile, it is convenient to be operated and examined. What's more, the hydraulic opening cover is convenient to overhaul and remove crushing cavity component.