How to control energy saving and consumption reduction of roller crusher?

Product introduction:https://www.cementepc.net/crusher/Roll-crusher.html

Current of roll crusher in mine and some of the broken broken homework has become a mainstream main crushing equipment, but part of the user to worry about on the production line of continuous job would cause great loss and electricity loss itself, according to incomplete statistics, the general operation of the power consumption of the broken use about 50% of the total power consumption of users.So how to reduce the power consumption of the roller crusher, how to control the energy saving and consumption reduction of the roller crusher?
 

1. Electrical configuration of the whole crushing operation

Roller crusher belongs to electrical equipment, in the process of operation, there will be a lot of loss.Because of the long time loss affects the mechanical crushing rate, the use of electrical energy is increased.So after each use are given maintenance cleaning, to ensure that the next use of the machine can be normal operation.The installation process of the equipment should also be carried out in strict accordance with the instructions. The installation dislocation not only brings higher wear degree to the equipment, but also increases the power consumption.On the basis of practice, the above methods can reduce the power consumption.
 

2. Control the particle size of original unbroken materials

Roller crusher has a specified rated limit of material distribution.How does a single feed amount affect energy consumption?Through experiments in jiangsu LVSSN, it was found that the maximum feeding amount could save electricity each time.A significant increase or decrease in the amount of feed is not the normal operation of the machine.
 

3. Operation of the whole production line or single equipment

In the operation of the roller crusher, according to the correct operation mode to obtain the maximum productivity ratio, the wrong operation not only loss of machinery to reduce the service life of the machinery, but also increased the power consumption, such as the machine operation is not detected, the material before the input of no empty machine operation observation machinery.Correct operation is also one of the methods, but also the most simple and convenient method.

The above is only part of the node measures for roller crusher, we must according to the specific situation of the production line and production environment to design the most power-saving program, if you need can leave a message with us online.

The page source:https://www.cementepc.net/Industry/How-to-control-energy-saving-and-consumption-reduction-of-roller-crusher.html

How to judge whether the limestone jaw crusher is durable?

Product introduction:https://www.lvssn.com/crusher/Limestone-crusher.html

When buying limestone jaw crusher, the customer first look at the price, followed by the performance and durability, with the use of limestone jaw crusher time growth, we can clearly see the difference between durable and not durable, How to judge whether the limestone jaw crusher is durable?
 

1. Sealing performance of crusher

Limestone of jaw crusher production process there will be no noise, and environmental protection measures are in place, because this type of limestone crusher sealed performance is good, can prevent dust spillover effect on the environment to form, and its sealing ability is good can also reduce production of dust influence for internal parts of lubrication, etc.

 

2. The crushing ratio

Broken than large, broken after processing raw material product particle size is very uniform, a shape is, m3 body content is relatively more, and the use of limestone mandibles crusher for a longer time change the discharging mouth of the tuning range is very big, can according to customer demand for processing raw material discharging granularity adjustment satisfaction of discharging granularity, adjustment of it is very convenient.

 

3. The crusher consumes energy

Appearance, one of the three, the production of energy consumption is low, you can close the production of the electrical energy required, for may have great help to save money, the other is the type number of limestone mandibles crusher maintenance more convenient, can greatly save the time required to repair time, to stop the formation of the efficiency of the narrow has a lot of help.

 

4. Choose materials

Above we mentioned that the use time of the limestone jaw crusher and its internal parts of the use of materials have a great relationship, usually said that the wear resistance of the material is good, the use time will be longer, on the contrary, the use time is shorter.

If you want to choose a durable crusher, you must choose a powerful company. Jiangsu LVSSN can bring you quality. If you are interested, please leave a comment online with us.

The page source:https://www.lvssn.com/Product/How-to-judge-whether-the-limestone-jaw-crusher-is-durable.html

The reason why the large and small bevel gears of cone crusher frequently hit teeth

Product introduction:https://www.lvssn.com/crusher/Cone-crusher.html

Cone crusher work, by the motor through triangle, big belt wheel, a transmission axis, a small bevel gear, bevel gear drive the eccentric sleeve, drives the moving cone rotary pendulum movement, makes the broken wall surface and sometimes near and sometimes leave the surface of the rolling mortar wall, which make the material of the cone and cone annular crushing cavity continuously hit, extrusion and bending and crushing.Among them, small bevel gears and large bevel gears are important transmission components.Cone crusher often appear teeth, wear serious phenomenon, cone crusher large, small bevel gear frequently teeth reasons
 

1. Get stuck

In the crushing chamber of the cone crusher, non-breakable material (over-iron) is entered, and the non-breakable material entering the cone crusher exceeds the maximum size of over-iron of the cone crusher, which causes the equipment to get stuck.After the cone crusher is stopped by blocking materials, the operator, in order to shorten the cleaning time, starts the motor with heavy load for several times and causes the drive bevel tooth inside the cone to be broken due to overload fatigue.
 

Cross the iron card dead solution

(1) adjust the current of the protection device of the cone crusher so that it cannot be forced to start or temporarily protect the trip under heavy load.

(2) a permanent magnet lifting device is installed on the belt conveying materials into the cone crusher to effectively prevent the cone from breaking through the iron.

 

2. Poor lubrication of the cone crusher

Cone crusher in the process of operation, when the water seal dustproof device seal is not strict, will make a large number of dust into the body of the lubricating oil, so that the lubricating oil quickly become poor, resulting in poor lubrication, causing the size of bevel gear teeth, wear serious.
 

Poor lubrication solution for cone crusher

Replace lubricating oil in time to ensure good lubrication of equipment.Check the operation of oil pumps, filters, coolers, valves and pipelines, as well as the oil pressure and temperature of the oil and thin oil lubrication system.

 

3. Large and small bevel gears are not meshing properly

The installation of bevel gears of large and small size is the same as that of meshing and normal gears, which destroys the right meshing conditions of a pair of gears, causing additional impact vibration and additional sliding wear of gears in the process of operation, resulting in shortened service life of gears, or even tooth beating.
 

Large, small bevel gear meshing improper solution

Make the bevel gear meshing correctly, eliminate the reciprocating sliding and additional impact between the gears, reduce wear, prevent teeth.

 

4. Large and small bevel gears have improper meshing clearance

When the gear is installed, the gap between the tooth top and the tooth side is adjusted improperly, or the contact surface between the upper disk and the eccentric sleeve appears inclined groove after the thrust disc is worn, thus affecting the meshing clearance between the gears, and it is easy to produce tooth striking phenomenon in the production of the cone crusher.
 

Large, small bevel gear meshing clearance improper solution

Regularly check the meshing clearance of bevel gears and the matching clearance between eccentric shaft sleeve and rack bush, and replace the eccentric shaft sleeve or rack bush with excessive wear in time to ensure the clearance within the specified range.
 

5. Gear machining accuracy is not high

Gear machining accuracy is not high, resulting in the phenomenon of teeth in the work.
 

Gear machining precision is not high solution

Improve the processing accuracy of bevel gear of cone crusher, ensure the contact surface is even, improve the service life, avoid the root cutting teeth.

In the work of the cone crusher, must prevent iron, ensure good lubrication of equipment.In addition, in the selection of large and small bevel gear, should pay attention to the screening of manufacturers, select the gear with high machining accuracy;Attention should be paid to the selection of suitable meshing clearance during installation to avoid the possibility of tooth beating and root cutting from the source, so as to ensure the efficient operation of the equipment and improve the production efficiency.

The page source:https://www.lvssn.com/Product/The-reason-why-the-large-and-small-bevel-gears-of-cone-crusher-frequently-hit-teeth.html

Solution for rotor bearing failure of hammer crusher

Product introduction:https://www.cementepc.net/crusher/Hammer-crusher.html

Hammer crusher is the use of high-speed rotating hammer head on the rotor body to break the material, its rotor bearing in the work to bear a lot of cyclic impact force.Due to the poor working conditions of the rotor bearing, coupled with the design, manufacture and use of improper reasons, the bearing service life only a few months, hammer crusher rotor bearing failure solution.
 

1. Choose reasonable tolerance fit

Under normal temperature, hammer crusher rotor bearing for surplus to cooperate, but when the bearing working temperature is above 60 ℃, that is converted to clearance fit, the journal of relative movement between the inner ring, the relative movement of the friction heat on the one hand, fuelled the rise of temperature of the bearing, on the other hand shaft neck and adhesive wear lead to premature failure of the bearing.

In order to keep the interference fit between the inner ring and the journal at a higher temperature, the tolerance fit of the journal should be selected by considering the thermal expansion of the inner ring.

On the one hand, there is enough expansion space for the outer ring when the bearing overheats. On the other hand, it can also improve the stress state of the outer ring and extend the service life of the outer ring.

2. Strengthen sealing and lubrication

Timely and correct lubrication can greatly reduce the friction resistance of hammer crusher rotor bearing and restrain the temperature rise of hammer crusher bearing. In view of the working characteristics of high-speed and heavy load of rotor bearing, molybdenum disulfide compound calcium grease (zfg-3e) should be selected to lubricate the bearing.In addition, add grease every 8 hours, change oil every 3 months, and clean the bearing and seal ring and cover with gasoline or kerosene, and timely replace the labyrinth seal cover with excessive wear gap on the bearing seat of hammer crusher.

3. Improve bearing stress

The impact load acting on the hammer crusher bearing depends on the impact on the rotor and bearing bearing bearing flexibility, increase bearing bearing bearing flexibility, will reduce the impact load acting on the bearing.Therefore, an appropriate thickness of rubber plate can be added between the bearing seat and the supporting frame to improve the bearing bearing flexibility.Because add rubber plate, increase flexibility, thereby absorb a part of vibration energy, improve the hammer crusher bearing stress condition, to extend the service life of the purpose.

4. Balance the rotor during assembly

The mass of hammer crusher rotor is large and the speed is high, the casting deviation of rotor body and the mass deviation caused by the installation of hammer head will cause unbalanced centrifugal force when the rotor rotates.This centrifugal force causes the hammer crusher to produce forced vibration, causing damage to bearings and other machinery.Therefore, the manufacturer should perform balance test on the rotor to meet the requirements of the standard.When installing the hammer head, two hammer heads with the same mass should be assembled in two positions with mutual symmetry, and the gravity of the hammer head should be well matched to balance the gravity of the hammer head, the gravity of each row in the circumferential direction of the rotor should be equal, and the axial gravity should be evenly arranged, so as to achieve the balance requirement.Replacement of hammer crusher new hammer head should also pay special attention.

The above is only to improve the hammer crusher rotor bearing early failure of part of the method, we should choose a reasonable scheme according to the production environment, if you have any questions can be at any time and we leave a message.

The page source:https://www.cementepc.net/productknowledge/Solution-for-rotor-bearing-failure-of-hammer-crusher.html

The difference between no-load test and on-load test of jaw crusher

Product introduction:https://www.lvssn.com/crusher/Jaw-crusher.html

Jaw crusher is an important crushing equipment in stone production line. Its main characteristic is large crushing ratio. Therefore, most stone production lines use jaw crusher for coarse crushing.For the newly purchased jaw crusher needs to be tested first and tested without fault before it can be put into production.The difference between no-load test and on-load test of jaw crusher.

 

1. No-load test of jaw crusher

 

The purpose of "no-load test" is to adjust the machine to the best state. The process is as follows:

(1) during no-load test, the jaw crusher shall operate continuously for 2h, and the temperature rise of the bearing shall not exceed 30℃;

(2) during the test run, all fasteners of the jaw crusher should be firm without loosening;

(3) whether the flywheel and groove wheel operate smoothly;

(4) during the test run, the jaw crusher should reach the point where there is no abrasion, chip dropping and grinding of all friction parts, and there is no normal sound;

 

The adjustment device of the discharge port of jaw crusher should ensure the adjustment range of the discharge port.
 

2. The jaw crusher has load test

 

The purpose of "on-load test run" is to observe whether the broken materials meet the standards and pave the way for the follow-up continuous production.The specific process is as follows:

 

(1) during on-load test, the jaw crusher shall not have periodic or significant impact or impact sound;

(2) the maximum feeding particle size shall conform to the design regulations;

(3) continuous operation for 8h, bearing temperature rise shall not exceed 30℃, temperature shall not exceed 70℃;

(4) the processing capacity and product size of jaw crusher should meet the design requirements;

(5) there is no obvious movement between the adjustment seat and the rack ear seat.

The test run can not only test the performance of jaw crusher but also prevent the occurrence of various minor faults in production.If the machine fails to meet the specified standard during no-load test or on-load test, it means that the machine is not up to the standard, and professional technical personnel should be asked to debug the machine again until it meets the standard.

The page source:https://www.lvssn.com/Product/The-difference-between-no-load-test-and-on-load-test-of-jaw-crusher.html