蓝月亮精选料免费大全

采煤机

Shearer

Shearer is a large and complex system integrating machinery, electricity and hydraulic pressure. Shearer is one of the important equipment to realize mechanization and modernization of coal mine production. Mechanized coal mining can reduce physical labor, improve safety, and achieve the goals of high output, high efficiency, and low consumption.
Mechanized coal mining technology includes: falling coal, loading coal, transporting coal, supporting roofs, and processing goafs.
The shearer mainly completes the two processes of falling coal and loading coal.

Classification of Shearer

There are three main types of coal mining machinery: drum coal shearers, coal planers and coal mining rigs. Due to the large mining height range of the drum type coal mining machine, it is suitable for a variety of coal seams and more complicated roof and floor conditions, so it is widely used.
Drum type shearer can be divided into single drum shearer and double drum shearer

Main features of shearer

1> The range of height adjustment of the drum is large, and it can be used for medium-thick coal seams to extract the full height at one time, and it can adapt to changes in coal seam thickness and the undulation of the floor; Up to 2.8 ~ 6 meters. The mining height of the thin-coal double-drum shearer can be as low as 0.8 meters,
2> When the shearer is running to both ends of the working face, the drum can be cut to the end of the working face and even extend into the groove, so the cuts at both ends of the working face can be opened automatically;
3> Shearer has high power and high mechanical strength, can cut coal of various hardness, and can cut sandwich and part of the top and bottom rocks; At present, domestic high-power coal winning machine MG800 / 2024-WD, motor power It has reached 2400KW.
4> Shearer has a large traction speed, so the production capacity is high. EL1000 / 3000 shearer has a maximum traction speed of 45m / min, and the hourly production capacity of the shearer can reach 5000t.
5> Shearer has relatively complete protection devices. The traction part of most coal mining machines is equipped with an automatic speed regulating device, which can fully exert the extreme efficiency and effectively prevent extreme overload, thereby improving the reliability of the machine.
6> The machine is easy to operate. In addition to the handle and button controls, some coal mining machines are also equipped with radio control devices and simple automatic operation control systems.
7> Ancillary equipment is becoming more and more complete, such as installation of tow cable, dust cooling, anti-skid and large coal crushing.
8> Equipment, system control box diagnosis uses microelectronic technology, computer technology and mechatronics technology. It further provides the automatic control function and reliability of the equipment.

Composition of shearer

The drum type coal mining machine is mainly composed of four parts: an electric motor, a cutting part, a traction part and an auxiliary device. The electric motor provides power, and the cutting unit and the traction unit are respectively driven by the transmission mechanism, so as to provide the coal mining machine with the power required for falling coal, loading coal and running along the working surface. The cutting section completes the coal falling and loading, and the traction section moves the machine. The auxiliary devices include spraying devices, anti-skid devices, and towing cable devices, etc., to ensure the safe and reliable operation of the shearer.

Composition of single drum shearer

1-fender, 2-spiral drum, 3-rocker reducer, 4-fixed reducer, 5-traction section reducer, 6-main sprocket, 7-auxiliary sprocket, 8-motor, 9-cable Rack, 10-anchor chain, 11-bottom bracket, 12-conveyor slot

Composition of double drum shearer

1. 9-spiral drum 2. 10- coal fender 3. 8- rocker reducer 4. 7- fixed reducer 5- traction section 6- motor 11- conveyor slot 12- bottom bracket

单滚筒采煤机的组成

双滚筒采煤机的组成
MG300/700-WDK采煤机

MG300 / 700-WDK shearer

Shearer is suitable for mining thin coal seams with a coal seam thickness of 0.75-1.5 meters, coal hardness f ≦ 2.5, and coal seam inclination angle of 16 °. When the coal seam inclination exceeds 16 °, use the unit's own hydraulic anti-skid winch. Shearers are matched with SGB-630 / 60, SGW-44, -40T, -80T conveyors and DZ-type thin coal seam single hydraulic props to form high-end general mining working faces.

MG200-W采煤机

MG200-W Coal Shearer

Shearer is suitable for long-wall coal mining face with coal mining height of 1.4 ~ 2.4m, inclination angle is less than 30 °, coal seam with medium hard or below, and contains a small amount of rock. The electrical equipment of this coal mining machine meets the requirements of mining explosion-proof regulations, and can be used in mines in which methane, coal dust, hydrogen sulfide, carbon dioxide and the like in the surrounding air do not exceed the safety content specified in the "Coal Safety Regulations".

Shearer can be matched with hydraulic support and working surface scraper conveyor, which can realize comprehensive mechanized coal mining on the coal mining face. In addition, because the body of the shearer is short and narrow, it can also be combined with a single hydraulic prop. The metal hinged top beam is matched with the working surface conveyor to realize the high-end general mining mechanized coal mining on the working surface.

MG300 / 700-WDK shearer MG200-W Coal Shearer
Production capacity t / h 1600 850
Mining height m 1.8-4.0 1.4-3.0
Section depth mm 630,800 630,800
Adapt to the inclination ≤35º ≤35º
Roller diameter mm Φ1800, Φ2000, Φ2200 Φ1250, Φ1400, Φ1600
Drum speed r / min 30.8, 35.3, 40.2 41.5, 48.9, 60.5
Rocker arm length mm 2267 1394
Rocker swing center distance mm 6258 3786
Traction KN 520 250
Traction speed m / min 0-8.2 / 11 0-6.0
Traction form Electric traction-gear-pin rail Hydraulic-gear-pin rail
Machine height mm 1426 1174
Minimum undercover mm 265 158
Maximum non-removable size 2700 × 1600 × 850 2600 × 1500 × 650
Maximum non-removable weight t ≤7 ≤5.5
Dust elimination method Inside and outside spray Inside and outside spray
Installed power kw 300 × 2 + 40 × 2 + 18.5 200
Voltage v 1140 660/1140
Machine weight t 45 twenty one
Supporting transport machine 850 730, 764 series
CMM EBZ220采煤机

CMM EBZ220 Shearer

Shearer is suitable for mining thin coal seams with a coal seam thickness of 0.75-1.5 meters, coal hardness f ≦ 2.5, and coal seam inclination angle of 16 °. When the coal seam inclination exceeds 16 °, use the unit's own hydraulic anti-skid winch. Shearers are matched with SGB-630 / 60, SGW-44, -40T, -80T conveyors and DZ-type thin coal seam single hydraulic props to form high-end general mining working faces.

Other topics

  • Heading Machine Topic

  • Special topic

  • Dumper topic

  • Lifting equipment topic

  • Railway Equipment Topics

  • Hydraulic support topic

  • Shearer topic

  • Minecart topic

  • Support Equipment Topics

  • Special Topics for Rock Drilling Equipment

  • Emulsion Pumping Station

  • Special spray equipment

  • Drainage equipment topic

  • Topics on mining doors

  • Survival cabin topic

  • Security rescue equipment topic

  • Electrical equipment topic

  • Special Topics on Steel Equipment

navigation

online service
Enterprise QQ
hotline
Mobile access
Mobile access

Quick navigation

var _hmt = _hmt || []; (function() { var hm = document.createElement("script"); hm.src = "https://hm.baidu.com/hm.js?be055eb5acfdc25d3bd72279b8418725"; var s = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(hm, s); })();