What are the common mining crushers? Such as: jaw crusher, spring cone crusher, PFY impact crusher, roller crusher, hammer crusher, compound crusher, hammer sander, etc. Mining crushers are used for mining machinery and equipment that need to crush large materials.

Mining crushers are widely used in mining, smelting, building materials, highways, railways, water conservancy and chemical industries and many other sectors, crushing various materials with a compressive strength of not more than 320 MPa.

Jaw crusher is usually used as the first break in the production line, and its production volume will immediately endanger the production volume of the entire production line. How to increase the output of the crusher with a larger limit under the precondition of ensuring the particle size distribution of iron ore is a problem that many mining companies are paying close attention to.

Common problems of feeder

(1) Avoid pressing objects into the crushing cavity. Pressing objects will destroy the jaws and other parts.

(2) The aspect ratio of iron ore prevents it from exceeding the fixed jaw.

(3) The size of the larger iron ore should be smaller than the size of the feeder mouth of the jaw crusher. Large iron ore is very easy to block the crushing cavity and endanger the high efficiency of crushing.

Proper feeder

In order to promote the damage of the jaw plate and reduce the operating cost, the iron ore should be distributed along the channel of the vibrating feeder and fill the crushing cavity.

Ensuring ample ore volume

In the whole process of normal application of the vibrating feeder, according to the size of the output rate, within the range of the rated value of the vibration amplitude, adjust the vibration amplitude according to the adjustment control cabinet knob, so as to realize the stepless adjustment of the vibration feeder production The purpose of the rate.

Brief description of jaw

The two jaw plates are tooth-shaped and have a vertical model design concept, which can be reversed and exchanged, so that one jaw plate can be installed on both the movable jaw and the fixed jaw.

Jaw plate damage and solutions

The condition and adjustment of the jaw plate damage are very reasonable to improve the professional ability of the crusher. It is to regularly maintain the damage, and to distinguish when the jaws are upside down, exchanged and replaced. There are generally the following types of damage and solutions.

(1) 1/3 of the bottom of the movable jaw has been damaged; 2/3 of the bottom of the fixed jaw has been damaged. Solution: The two jaws are reversed.

(2) The top and bottom of the movable jaw were damaged by 1/3, and the central and southern parts were damaged by more than half; the top and bottom of the fixed jaw were damaged by 2/3. Solution: The two jaws are interchanged.

(3) The top and bottom ends of the two jaws have been completely damaged. Solution: All replacements.

Set the effective size of the unloading port

The setting of the feed opening means to adjust the distance between the two jaws below the crushing chamber. The adjustable range of the feed opening of the machine and equipment of different models and specifications is different. A discharge nozzle that is too small will cause blockage and consume too much kinetic energy, resulting in serious damage to the pulverizer. An excessively large feed opening will aggravate the load of crushing again.

Adjustment of the opening of the feed opening

Adjusting the opening of the feed opening means that it is maintained according to the raising or lowering of the adjusting seal located behind the swing rod seat plate. When measuring the setting distance, pay attention to the part of the upper eccentric shaft, make the lower part of the fixed jaw and the lower part of the movable jaw be the closest part, and then measure the larger diameter of a circle tangent to the circles of the two jaws on this part , Use this circle to mean the specification of iron ore. The measuring equipment shall use the ring gauge supplied with the equipment. After the adjustment is done, the tightening of the elastic yellow can not be reduced too much, and it must be prevented that the elastic yellow is densely arranged. Both the support frame and the tension elastic yellow bear the fatigue ground stress function, and should be replaced by the end of this year 2-3.

The key practical significance of moisturizing

Lubrication is important to ensure the characteristics and service life of rolling bearings, and rolling bearings are a key component of the operation of the crusher, which is closely related to the crushing efficiency

The eccentric shaft rolling bearing installed on the motor shaft rolling bearing box and the movable jaw is the only component that must be lubricated in this jaw crusher. The pulverizer weapon is equipped with a labyrinth-type sealing device to maintain the cleanliness of vegetable grease in the rolling bearing. There are lubricating grease nipple on the 4 rolling bearings for the usage of adding lubricating grease. Before adding lubricating grease, the injector and the grease gun should be cleaned to prevent dust from entering the rolling bearing box.

The condition of the feeder is a vital element that harms the efficiency of crushing ore. It should be paid special attention. Every aspect of the feeder should be properly checked. The damage of the jaw plate should be carefully checked every quarter to make a proper distinction. There are plans to adjust and replace the jaw plate in order to obtain greater crushing efficiency and economic benefits.