Crusher in Luoshan coal mine
1. Calculate I = Dmax / Dmax by the ratio of the maximum particle size of the material before crushing and the maximum particle size of the proct after crushing, where Dmax is the maximum particle size of the material before crushing; dmax― http://www.ysxuankuang.com/cpzx.html - the maximum particle size of the material after crushing
2. The ratio of the effective width of the feeding port and the width of the discharging port of the crusher
I = 0.85b/b
where
b --- the width of the feeding port of the crusher; B --- Crusher & lt; Width of discharge port
0.85 -
ensure the effective width of the crusher gripping the material. The maximum width of discharge port is selected for coarse crusher; Take the minimum width of discharge port for middle crusher
3. Calculate with average particle size
I = DCP / DCP
where
DCP - average diameter of material before crushing; DCP - average diameter of crushed material. The crushing ratio obtained by this method can truly reflect the crushing degree of sand and stone equipment.
you have to tell us which kind of crusher you want, jaw crusher or what kind of crusher you want. Each manufacturer has its own strong points. There is a great wall mining machinery company in Xinxiang. All kinds of mining machinery are good, and building materials enterprises do more (such as cement plants). As for why it's good, you can see it online. I've been to his factory.
Lithotriptor can be divided into medical lithotriptor and mining lithotriptor. In principle, the mining crusher is suitable for crushing massive hard rock in mines. The typical granite discharge particle size is less than or equal to 40mm, accounting for 90%. The machine can handle materials with side length less than 100-500mm
mine crusher is mainly used to crush all kinds of stone materials. According to different crushing principles and proct particle size, it can be divided into many models. Crushers are widely used in mining, smelting, building materials, highway, railway, water conservancy and chemical instry. Objective: in the metallurgical, mining, chemical, cement and other instrial sectors, a large number of raw materials and recycled waste need to be processed by crusher every year. For example, in the concentrator, in order to separate the useful minerals in the ore, it is necessary to use the crusher to crush the raw ore to the size required by the grinding process. The crushing machine is needed to crush the raw material to the size required by the next operation. In coking plant, sintering plant, ceramic plant, glass instry, powder metallurgy and other departments, it is necessary to use crushing machinery to crush raw materials to the size required by the next operation. Significance: in the chemical instry and electric power sector, crushing and grinding machinery will crush and grind raw materials, increase the surface area of materials, and create favorable conditions for shortening the chemical reaction time of materials. With the rapid development of instry and the rapid rection of resources, it is very important to reuse the waste in the proction of various departments. The reprocessing of these waste needs crushing machinery. Therefore, crushing machinery plays an important role in many departments. Mining crusher, also known as crusher, is a crushing machine whose particle size is more than 3mm in the discharge, accounting for more than 50% of the total discharge. The proction cost is low. Compared with the hammer crusher, the wear-resistant parts have the advantages of long service time, high proction efficiency and small investment
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Model size of feed port
(mm) maximum feed size
(mm) discharge port adjustment
(mm) whole range
(mm) processing capacity
(T / h) eccentric shaft speed
(R / min) motor power
(kw) total weight
(T) overall dimension
(L / h) × wide × High)
(mm) pe-150 × 250 150 × 250 125 10-40 1-3 250 5.5 0.8 720 × six hundred and sixty × 850 PE-200 × 300 200 × 300 180 15-50 2-6 260 7.5 1.2 910 × seven hundred and fifty × 990 PE-200 × 350 200 × 350 180 18-70 3-10 260 11 1.5 1000 × eight hundred and seventy × 990 PE-250 × 400 250 × 400 210 20-60 5-20 300 15 2.8 1300 × one thousand and ninety × 1270 PE-400 × 600 400 × 600 340 40-100 16-60 275 30 7 1730 × one thousand seven hundred and thirty × 1630 PE-500 × 750 500 × 750 425 50-100 40-110 275 55 12 1980 × two thousand and eighty × 1870 PE-600 × 750 600 × 750 500 150-200 80-240 275 55 15.8 2070 × two thousand × 1920 PE-600 × 900 600 × 900 500 65-160 50-180 250 55 17 2190 × two thousand two hundred and six × 2300 PE-750 × 1060 750 × 1060 630 80-140 110-320 250 90-110 29 2660 × two thousand four hundred and thirty × 2800 PE-800 × 1060 800 × 1060 640 160-220 130-330 250 110 29.8 2710 × two thousand four hundred and thirty × 2800 PE-830 × 1060 830 × 1060 650 160-220 150-336 250 110 30.7 2740 × two thousand four hundred and thirty × 2800 PE-870 × 1060 870 × 1060 660 200-260 190-336 250 110 31.5 2810 × two thousand four hundred and thirty × 2800 PE-900 × 1060 900 × 1060 685 230-290 230-390 250 110 33 2870 × two thousand four hundred and twenty × 2940 PE-900 × 1200 900 × 1200 750 95-165 220-450 200 110 52 3380 × two thousand eight hundred and seventy × 3330 PE-1000 × 1200 1000 × 1200 850 195-265 315-500 200 110 55 3480 × two thousand eight hundred and seventy-six × 3330 PE-1200 × 1500 1200 × 1500 1020 150-300 400-800 180 160 100.9 4200 × three thousand and three hundred × 3500 PEX-150 × 750 150 × 750 120 18-48 8-25 320 15 3.8 1200 × one thousand five hundred and thirty × 1060 PEX-250 × 750 250 × 750 210 25-60 13-35 330 30 5.5 1380 × one thousand seven hundred and fifty × 1540 PEX-250 × 1000 250 × 1000 210 25-60 16-52 330 30 7 1560 × one thousand nine hundred and fifty × 1390 PEX-250 × 1200 250 × 1200 210 25-60 20-61 330 37 9.7 2140 × one thousand six hundred and sixty × 1500 PEX-300 × 1300 300 × 1300 250 20-90 16-105 300 55 15.6 2720 × one thousand nine hundred and fifty × 1600
mainly depends on the configuration and model
for reference only
although there are many types of jaw crushers, their working principle is the same, that is, crushing materials through the periodic movement of moving jaw. In the process of the jaw swinging around the suspension axis, the material between the two jaw plates is crushed, split and bent. At the beginning, the pressure is small, so that the volume of materials is reced, and the materials are close to each other and squeezed tightly; When the pressure rises to more than the strength of the material, it will break. On the contrary, when the moving jaw leaves the fixed jaw and swings in the opposite direction, the material moves downward by its own weight. Each periodic movement of the moving jaw causes the material to be crushed once and to be discharged downward for a certain distance. After several cycles, the crushed material is discharged from the discharge port
cone crusher:
the structure of cone crusher mainly consists of frame, horizontal shaft, moving cone, balance wheel, eccentric sleeve, upper crushing wall (fixed cone), lower crushing wall (moving cone), hydraulic coupling, lubrication system, hydraulic system, control system, etc
in the working process of the cone crusher, the motor drives the eccentric sleeve to rotate through the transmission device, and the moving cone rotates and swings under the force of the eccentric sleeve. The section of the moving cone close to the static cone becomes the crushing chamber, and the material is crushed by the repeated extrusion and impact of the moving cone and the static cone. When the moving cone leaves the section, the material which has been broken to the required size falls under its own gravity and is discharged from the bottom of the cone
impact crusher:
impact crusher is a kind of crushing machine which uses impact energy to crush materials. When the machine is working, driven by the motor, the rotor rotates at high speed. When the materials enter the action area of plate hammer, they collide with the plate hammer on the rotor to crush, and then they are thrown to the impact device to crush again, Then, it bounces back from the impact lining plate to the action area of the plate hammer to crush again. This process is repeated. The material enters the first, second, third and impact cavities from large to small to crush repeatedly until the material is crushed to the required particle size and discharged from the discharge port. The purpose of changing the particle size and shape of the material can be achieved by adjusting the gap between the impact frame and the rotor.