How to deal with the stuck ore of gyratory crusher
1, blocking material stuck
1, cone crusher feeding too much, or feeding properties do not meet the requirements, resulting in cone crusher blocking material, will make the crusher work electricity flow, circuit automatic protection and stop the machine, Even the cone crusher may be stuck and forced to stop
2. When iron or other non breakable materials enter the crushing chamber of the cone crusher, it will also cause the material blocking and even equipment blocking< 1. Improper use of the cone crusher is one of the main reasons for the fracture of the main shaft. For example, in order to achieve the required discharge fineness, the discharge port is constantly tightened, and if there are non breakable materials entering the crushing chamber, the main shaft will have a sharp impact, resulting in the fracture of the main shaft of the cone crusher
2. On the other hand, when the cone crusher is in overload operation for a long time, although there is overload protection device, it can not completely avoid the damage to the equipment, and the main shaft is prone to fracture, leading to the equipment stuck< When the cone crusher is running with load, the locking failure is caused by the pressure loss of the hydraulic station, and the adjusting sleeve will rotate with the moving cone. If the post personnel do not find and deal with it in time, it will cause the phenomenon of adjusting sleeve stuck, which will lead to the shutdown of cone crusher
2. The causes of adjusting sleeve sticking may be poor thread lubrication, wear of adjusting cap seal or st cover seal, scratch of adjusting sleeve and support sleeve thread, or long-time overload of cone crusher, etc.
(1) carefully check whether all parts of the crusher are in good condition, whether all connecting pieces are firm, and whether there are obstacles in the transmission parts, etc
(2) check whether there are ore or iron lumps in the crushing chamber. If there are ore and other impurities, they should be cleaned to ensure that the crusher starts under no-load condition
(3) check whether auxiliary equipment such as feeder, belt conveyor, electrical equipment and signal device are in good condition
(4) check whether the size of the ore outlet meets the requirements of the proction process
(5) check the oil level and temperature in the oil tank. When the oil temperature is too low in winter, the heating equipment should be used to heat the oil temperature above 20 ℃
(6) check whether the interlocking devices of lubricating equipment, oil pump motor and crusher motor are normal
2. Start up of gyratory crusher
the gyratory crusher can only be started according to the start-up procere after the above inspection and confirmation
(1) start the oil pump motor of the lubrication system, check and adjust the oil supply pressure to control the oil supply pressure in the range of 0.1 ~ 0.3 MPa. Check whether the oil flow indicator and the whole lubrication system work normally. Check whether the pressure of cooling water in the filter cooler is about 0.05 MPa lower than the oil supply pressure, so as to prevent the cooling water from seeping into the lubricating oil. After the lubricating oil reaches all lubricating parts and the return oil is normal, the start-up signal will be sent out according to the regulations
(2) for hydraulic rotary crusher, before starting the main engine, the oil pump motor of the hydraulic system should be started to supply oil to the oil cylinder. When the crushing cone rises to the working position (the size of the ore outlet meets the requirements), close the stop valve first, and then close the oil pump motor. At the same time, check whether the charging pressure of the accumulator meets the requirements
(3) start the host. After starting the motor of the rotary crusher, first observe whether the working current of the ammeter is normal, and whether the operation of the main engine and each part of the crusher is normal. At the same time, add grease to the crushing cone suspension device and other dry oil lubricated parts. When the crusher idles for 3-5min and the machine runs normally, start the feeder to feed the ore, so that the crusher can crush the ore
3. Matters needing attention in the operation of the rotary crusher
after the feeder starts, the operator must observe and pay attention to the following matters ring the loaded operation of the crusher, and operate correctly:
(1) the operation of the crusher should be checked frequently. Pay attention to whether the sound of transmission part and gear meshing is normal, and whether the sound of machine crushing ore is normal. If there is any abnormal sound and any abnormal situation, it should be dealt with immediately. In special cases, it should be stopped immediately
(2) ore feeding must be uniform, and the particle size of ore feeding should not be greater than 0.8 times of the width of ore feeding mouth
(3) pay attention to the situation of ore discharge and transportation at any time to prevent the ore from blocking near the ore discharge outlet and causing accidents
(4) regularly check whether the oil pump, cooler and filter work normally, check the oil flow indicator of each lubricating part, and check whether the oil pressure and temperature are normal. The return oil temperature should be lower than 60 ℃, and the oil temperature should be below 45-50 ℃ after cooler
(5) grease the crushing cone suspension device and pulley bearing regularly
(6) strengthen the inspection of ore feeding to prevent metal block, drill head and other non broken materials from entering the crushing chamber
(7) regularly check whether the connecting pins between the crossbeam, the middle frame and the base are loose, and whether the broken liner is loose and seriously worn. Find problems and deal with them in time< (1) stop the feeder first, and the crusher will continue to run until all the ore in the crushing chamber is broken. Otherwise, it will bring great difficulties to the next startup
(2) stop the crusher
(3) stop the oil pump and ore discharge transportation equipment.
1. Ensure correct BIOS settings
2. Check the contact of computer accessories frequently
3. Clean the chassis regularly. Too much st will cause poor contact between the boards, causing the system to crash in operation
4. Don't use the CD or floppy disk with unknown origin easily
5. Shut down according to the correct operation sequence. Don't turn off the power before the application software runs normally
6. Avoid multitasking at the same time
7. Don't be too innovative. All kinds of hardware drivers do not have to be updated at any time, the latest is not necessarily the best
8. When uninstalling the software, use the built-in anti installation program or the installation / uninstall mode in windows
9. When setting hardware devices, do not let other devices use the interrupt number, so as not to cause interrupt conflict and system crash
10. Don't open too many browser windows, otherwise it will lead to insufficient system resources and system crash
11. If your machine memory is not very large, do not run programs that occupy a large amount of memory
12. For system files or important files, it is better to use implied attributes to avoid deleting these files e to wrong operation
13. When modifying the master boot record of the hard disk, save the original record first to prevent the modification failure and the original boot record cannot be recovered
14. CPU, graphics card and other accessories should not be overclocking.
Vibration 1. The crusher and motor are installed with different shafts
2. The rotor is unbalanced
3. The feeding block is too large
4. The bearing seat or anchor nut is loose. 1. Correct and adjust it to meet the technical requirements of installation
2. Rearrange the ring hammer
3. Control the block size
4. Check carefully, Timely tightening reces output 1. Excessive clearance between rotor and sieve plate
2. Ring hammer wear 1. Adjusting spring bolt
2. Repairing or replacing abnormal sound in ring hammer machine 1. Materials or metals that cannot be broken enter crushing chamber
2. Internal parts activity
3. Internal parts fracture 4. Rotor and sieve plate collision 1. Cleaning crushing chamber
2 Careful inspection and timely tightening
3. Careful inspection and replacement of broken parts
4. Adjusting the clearance between rotor and sieve plate, bearing temperature is too high 1. Insufficient grease
2. Dirty grease
3. Bearing damage 1. Adding grease
2. Changing grease
3. Changing bearing hammer crusher is suitable for crushing minerals of various brittle materials. The crushed materials are coal, salt, Baiya, gypsum, alum, brick, tile, limestone, etc. The compressive strength of the material is not more than 100 MPa, and the humidity is not more than 15%
hammer crusher is a crusher used to directly crush the materials with the maximum particle size of 600-1800 mm to 25 mm or less. It is mainly used in building materials, mining, chemical instry, coal mine and other departments to crush brittle, medium hard and small water content materials, such as limestone, rock and so on. The compressive strength of the material shall not exceed 140 MPa. This machine has the advantages of large crushing ratio, low energy consumption, small occupation area and simple maintenance. Because VC composite austenitic wear-resistant steel is used in hammer head and side guard lining plate of the machine, the contradiction between toughness and wear resistance of traditional wear-resistant materials is solved. The material is added with fibrous carbide wear-resistant skeleton with high hardness on the austenite structure matrix, so that it not only has high toughness, but also has excellent wear resistance. Its wear resistance is 2-6 times of Mn13 and 3-5 times of high chromium cast iron, which greatly improves the economic benefits of the enterprise. The device can adjust the gap of castor bar according to the user's requirements, and change the discharging particle size to meet the different needs of different users
structure: hammer crusher box, rotor, hammer head, impact lining plate, sieve plate, etc< Working characteristics:
(1) the working hammer is cast by new technology, with wear resistance and impact resistance
(2) the required granularity can be adjusted according to customer requirements
(3) the body structure is sealed, which solves the problems of st pollution and body ash leakage in crushing workshop
(4) the overall design has the advantages of beautiful appearance, compact structure, less vulnerable parts and convenient maintenance, so it is an upgraded proct. Model specification power (kw) feed size
(mm) discharge size
(mm) proction capacity
(M / h) total weight of motor (T) overall dimension
(L) × wide × Height) (mm) PC Φ four hundred × 300 ≤200≤255-104110.8900 × six hundred and seventy × 860PC Φ six hundred × 400 ≤250 ≤30 10-22 4 22 1.5 1200 × one thousand and fifty × 1200 PC Φ eight hundred × 600 ≤250 ≤25 18-40 4 55 3.8 1310 × one thousand one hundred and eighty × 1310 PC Φ one thousand × 800 ≤350 ≤35 25-50 4 75 4.9 1600 × one thousand three hundred and ninety × 1575 PC Φ one thousand × 1000 ≤300 ≤35 30-55 6 132 8 1800 × one thousand five hundred and ninety × 1775 PC Φ one thousand two hundred and fifty × 1250 ≤350 ≤35 35-65 6 180 14 2060 × one thousand and six hundred × 1890 PC Φ one thousand and four hundred × 1400 ≤350 ≤35 50-100 6 280 32 2365 × one thousand eight hundred and seventy × 2220 PC Φ one thousand and six hundred × 1600 ≤350 ≤35 100-150 8 480 37.5 3050 × two thousand eight hundred and fifty × 2800
When the rotary crusher enters the normal crushing work, the following items must be observed and paid attention to ring the operation:
(1) check the operation, and there should be no abnormal knocking sound inside the crusher. Stop operation immediately under special circumstances. The feeding particle size shall not be greater than 0.8 times of the feeding mouth, and the lower part of the discharge chute and crushing cone shall not be blocked by ore, otherwise the ore will be lifted by the crushing cone and the ore powder will enter the eccentric shaft, causing accidents
(2) frequently check whether the connecting pins between the crossbeam, the middle frame and the frame are loose and whether the clearance of 15.0 mm along the circumference is equal
(3) pay attention to check the tightness of the V-belt. You can use your thumb to press the V-belt to measure the tension. If the pressure is not more than 1.5cm, the tightness is appropriate (the measurement must be before driving or after parking). Check whether there is fracture, and pay attention not to stick oil on the V-belt
(4) pay attention to the operation of the oil pump, and often check the oil flow indicators, oil temperature and oil pressure indicators. The temperature of the oil after passing through the cooler should not be higher than 45 ~ 53 ℃, the return oil temperature should not be higher than 60 ℃, and the oil should be fed to the upper suspension device on time
(5) check the lining plates for looseness, lack and serious wear; Strictly check the ore feeding situation to prevent hammerhead, drill head and other metal objects from entering the crushing chamber
(6) in case of accidents ring operation, such as chute blocked by ore, oil feeding stopped, oil temperature over 60 ℃ and bevel gear knocking, it should be handled immediately according to the specified proceres
if the humidity and viscosity of the materials to be crushed are large, or there are too many non breakable materials, the materials can be pre screened and pre washed to rece the crushing difficulty
2. Adjust the tightness of the V-belt
if the V-belt is too loose, it will rotate with the pulley, a large number of materials will not be broken, and will stagnate in the crushing chamber of the counter roller crusher, causing material blockage. Therefore, just adjust the tightness of V-belt
3. Observe whether the eccentric shaft operates normally