coal pulverizer

Introduction to Coal Coal is a solid combustible mineral formed by ancient plants buried underground and undergoing complex biochemical and physicochemical changes. It is a solid combustible organic rock, mainly formed by the biochemical reaction of plant remains, burial, and geological transformation, commonly known as coal. Coal is known as the black gold, the food of industry, and has been used by people since the 18th century ..

Introduction to Coal Crusher
Which manufacturer is good for coal crushers? If you want to choose, choose Hongtong Machinery Factory in Gongyi City. Our factory has been researching and producing coal crushers for more than 30 years. With 30 years of quality and reputation guarantee, we are the best choice for you to choose coal crushers. Our factory strictly controls the quality of coal crushers and is more cautious in selecting accessories for coal crushers. For example:The material of the coal crusher hammer head produced by our factory is chromium alloy, which is currently the most advanced technology and wear-resistant metal part in China. The hammer head has stable operation and a service life that is more than 40% longer than products that do not use this process, with a maximum service life of up to one year.Hongtong Coal Crusher is your helper for making money and becoming rich.
Coal pulverizer is a coal specific pulverizer developed for the characteristics of high moisture and high viscosity of coalThis coal crusher is different from old-fashioned coal crushers. The old-fashioned coal crusher belongs to single power and has a screening bottom. And this new type of coal crusher belongs to dual power, without a screening bottom device. The traditional old-fashioned coal crusher relies on the sieve bottom to control the fineness of the discharged material. For example, the gap between the grate bottom is 3mm, and only materials smaller than 3mm can flow down from the gap. Materials larger than 3mm continue to circulate and crush in the crushing chamber. This greatly affects the yield. If the moisture content of the raw material exceeds 10%, it is easy to cause blockage. The new type of coal crusher structure recommended by our company has effectively improved the above defects.Firstly, the coal crusher adopts a dual power system, which reasonably combines two old-fashioned hammer crushers to form a new type of crushing equipment.The discharge port is equipped with a bottom less screening device, and the crushed material is directly discharged from the discharge port, resulting in efficient discharge and high output. In addition, the dual power combination greatly increases the fineness of the material, resulting in a more uniform and finer material after crushing.

Coal crusher picture:

Detail display of coal crusher

Coal crusher video


Coal crusher is suitable for materials

coal gangue	coal	coal cinder	slag
shale	limestone	construction waste	slag

The emergence of coal crushers has made up for the crushing defects of general crushers that cannot crush materials with high humidity, high viscosity, high moisture, etc. At the same time, it has broken through the limitation of not being able to work normally on rainy days and is a popular new type of crusher equipment in the crushing industry today. This coal crusher has a wide range of applications and uses, and has gradually emerged in various industries.
The coal crusher is a specialized crusher designed for crushing high humidity materials. The crusher is suitable for a wide range of materials, including coal gangue, shale, coal slag, slag, construction waste, yellow skin slag, limestone, river pebbles, iron ore, calcite, potassium feldspar, talc, marble, dolomite, fluorite, lime, activated clay, activated carbon, bentonite, kaolin, cement, phosphate rock, gypsum, glass, manganese ore, titanium ore, copper ore, chromium ore, refractory materials, insulation materials, coal coke, coal powder, carbon black, clay, bone powder, titanium dioxide, iron oxide, and more than 300 other high humidity and high hardness materials in the construction industry. Moreover, this device has excellent crushing effects mainly for the construction industry and brick factories.

Technical parameters of coal crusher

Specification Model	Feed particle size	discharge particle size	production capacity	Material moisture content	Motor power
SCF600×400	≤200mm	≤3mm (Approximately 2mm or less) More than 85%	10-15t/h	＜25%	18.5+18.5(15)kw
SCF600x600	≤300mm		20-25t/h		22+22(18.5)Kw
SCF800x600	≤400mm		40-50t/h		45+45(37)kw
SCF800x800	≤450mm		50-60t/h		45+55(45)kw
SCF1000x800	≤500mm		70-80t/h		55+75(55)kw
SCF1000x1000	≤550mm		90-100t/h		90+90(75)kw

Note: The equipment model parameters are constantly being improved. If you cannot find the required model in the parameter table, you can contact us directly. Our technicians will configure the equipment that best suits your production needs and site requirements according to your requirements.

Coal crusher production site map:

Large scale coal crusher production site map

Small coal crusher production site


Characteristics of coal pulverizer
The coal crusher has the advantages of high output, low noise, and high crushing efficiency, which solves the problem of rapid wear of the hammer head and lining plate of old-fashioned crushers. The coal pulverizer produced by Hongtong Machinery is suitable for use in large, medium, and small brick factories, coal washing plants, slag factories, coal mines, and other industries. This coal pulverizer has been continuously improved and innovated based on previous old coal pulverizers, forming a series of new coal pulverizers with the following characteristics and performance:
1. Double rotor upper and lower two-stage crushing
The two sets of rotors connected in series allow the material crushed by the hammer head of the upper rotor to be immediately crushed again by the hammer head of the lower rotor, which rotates rapidly. The materials in the inner cavity collide and crush each other at high speed, achieving the effect of hammer powder and material powder, and are directly discharged.
2. No sieve bottom, high humidity material, never clogging
Traditional crushers with grate screen plates are not suitable for raw materials with a moisture content higher than 8%. When the moisture content of the raw materials is higher than 10%, serious blockage is prone to occur, causing the hammer head to not rotate, the material to not be discharged, and even burning out the motor, seriously affecting production.
The design of this coal crusher does not have a sieve bottom and does not have strict requirements for the moisture content of the material. There is no problem of clogging the sieve plate, and there is no problem of fine powder not being discharged in a timely manner or repeated crushing. Therefore, the crushing efficiency is high and there is no ineffective wear of the hammer head.
3. Unique bidirectional gap adjustment technology
After the wear of the hammerhead, the gap between the hammerhead and the lining plate becomes larger and the particle size becomes coarser. The hammerhead can be moved outward from the center to narrow the gap between the hammerhead and the lining plate and continue to be used. You can also adjust the gap by pushing the lining plate from the outside to the inside to control the particle size of the discharge.
4. The device is equipped with a counterweight balance wheel, which runs smoothly with high inertia and saves 20% of electricity
Both upper and lower sets of rotor shaft ends are equipped with flywheels, which can adjust the periodic speed fluctuations during operation, making it run evenly and smoothly, increasing rotational inertia, overcoming motion resistance, and saving more than 20% electricity.
5. Centralized lubrication system, non-stop oil injection, convenient and fast
The lubrication system of the coal crusher has changed the traditional way of adding lubricating oil to the grease nipple and oil cup; Centralized oil distribution pump configuration, one-step operation, multiple oil supply channels; The whole machine can simultaneously lubricate all bearings with lubricating oil at any time while the machine is in operation, which is convenient and fast. Due to the fully enclosed oil circuit, it can also prevent dust from entering and damaging the bearings.
6. Hydraulic manual starter housing
The hydraulic opening and closing device only requires one person to easily open and close the casing, which is not only lightweight, fast, safe and reliable, but also easy to maintain.

Structural diagram of coal crusher:

Structural diagram and wear-resistant hammer head diagram of coal crusher

Structure diagram and hammer image of hammer coal crusher

Operating procedures for coal pulverizer
We have always emphasized 'safety production', but we cannot avoid the occurrence of safety accidents. The main reason is that the operators cannot be diligent and responsible when operating the coal crusher. A momentary oversight can lead to a major disaster, so the correct operation of the coal crusher should not be underestimated. The operating procedures for coal crushers are essential for every operator to master. Proper operation of coal crushers can reduce equipment failure rates and extend their service life.
1. Preparation before startup
(1) Check if there is sufficient lubricating oil inside the bearing.
(2) Check whether the fixing screws of the bearing seat, lining plate, corner screws and other fasteners are completely tightened.
(3) Check if there are any debris inside the body.
(4) Add a iron remover before feeding.
2. Start up of coal crusher
(1) After checking that all parts of the machine and transmission are in normal condition, it can be started.
(2) Adjust the direction of rotation according to the arrow markings on the body.
(3) If there is any abnormal sound or other abnormal situation after starting, the machine should be stopped immediately, the cause should be identified, and the abnormal situation should be eliminated before restarting.
3. Precautions for using coal crusher
(1) The coal crusher can only be fed after running normally for thirty minutes without any abnormal conditions. It is strictly prohibited to start the coal crusher with material before it is in operation. If the feeding system is operated incorrectly and materials enter the coal crusher chamber that has not been started, the chamber must be cleaned before starting. Otherwise, it is possible to burn out electrical appliances and motors.
(2) The crushed material must be evenly added, not too much or too little, and must be distributed throughout the entire length of the rotor working part. The inlet material of the 800 × 600 type machine should not exceed 150mm, and the flow rate should be controlled within 50-70 tons per hour. The 600 × 400 machine should not exceed 100mm, and the flow rate should be controlled within 15-25 tons per hour. It is strictly prohibited for foreign objects such as iron blocks to enter the machine body.
(3) If the material is too wet and sticky, the material adhered to the inner wall of the machine should be cleaned in a timely manner. It is recommended to use dry slag material to wash it intermittently during production.
(4) Under normal circumstances, the temperature rise of the bearing should be within the range of 35 ℃, and the maximum temperature should not exceed 70 ℃. If it exceeds 70 ℃, the vehicle should be stopped immediately, and the cause should be identified and eliminated.
(5) Before stopping the machine, the feeding work should be stopped first, and the material in the coal crusher chamber should be completely discharged before stopping the machine.

Coal crusher delivery site:

Small coal crusher sent to Suzhou, Jiangsu（Click to view more shipping images）


Coal crusher with large feed inlet sent to Guang'an, Sichuan（Click to view more shipping images）