In order to enable the normal operation of pellet feed processing complete sets of equipment, prolong its service life, reduce failures, and increase economic efficiency, China Animal Husbandry Equipment Network offers several points for reference.
1 Installation and commissioning of equipment
1.1 Before installation, check the layout of the equipment and the foundation plan to check whether the dimensions of the installation foundations meet the requirements of the drawings. If any discrepancies are found, rework should be carried out until the dimensions are correct and then install them.
1.2 The installation personnel should be familiar with the installation requirements of various equipment and strictly follow the technical requirements for construction.
1.3 The equipment may cause deformation, damage or loss in the transportation process. Therefore, before installation, check and check the equipment detailed list, and take corresponding measures to ensure that the equipment is in good condition before installation.
1.4 Each equipment shall be numbered before entering the installation site. The installation process flow card and schedule shall be formulated. According to the requirements of the installation process sequence, the equipment shall be transferred to the site one by one for installation.
1.5 Installation sequence: From top to bottom, after the host device and rack are in place, install the connecting pipes and electrical equipment.
1.6 Tools required for installation: equipment and village materials must be available.
1.7 After the installation, the rotating parts of the equipment must be flexible, no card, impact and percussive sound. Each connecting part must be firm and sealed, with no leakage, leakage or oil leakage.
1.8 The installation of electrical equipment should comply with the relevant regulations of the State. The direction of each line should be clear and there should be no electricity running or electrical leakage. Wires and cables should have protective shells to prevent rats from biting.
1.9 After installation of all equipment is completed, each stand-alone unit is to be tested for empty vehicles and put into a load test after it is running properly.
1.10 Before the load test, calibrate the electronic batching scale and packing scale to meet the required accuracy.
1.11 The load is running for 8 hours, and it can be provided to the factory for production and use after there is no fault.
2 Operation and use
2.1 The equipment is inspected by the on-duty personnel of each post before driving.
2.1.1 Whether or not foreign objects fall into the equipment; whether the rotating parts are flexible, whether there is card or bump, whether the connection parts are firm, and whether there is any powder leakage, air leakage, or oil leakage. If there is a fault, it should be promptly removed.
2.1.2 Whether the gears have lubricating oil; whether the tension of the drive belt is appropriate; whether the hammer of the crusher, the die of the granulator, and the press roller need to be replaced; whether the specifications of the screen meet the requirements.
2.2 The staff in the control room should have daily production arrangements and storage of main and auxiliary materials in order to schedule production.
2.3 Operation sequence
2.3.1 Close the main power switch first, then place each system switch in the working position.
2.3.2 Switch on the acoustic signal and notify the staff to enter the job.
2.3.3 After all preparations have been completed, the on-duty staff of the control room determines the in-warehousing number of each material. Each three-way valve is assigned to each corresponding position. The dust-removing fan is started first, and then the switches are switched on in the order of the processing technology.
2.3.3.1 Starting sequence of raw material system: dust blower crusher elevator horizontal conveyor raw material crusher cleaning sieve raw material hoist. If the raw material system is shut down, it should be done in the reverse process of its start-up.
2.3.3.2 The stoppage of the secondary material system is roughly the same as that of the raw grain system.
2.3.3.3 Batch Mixing System: The system has two manual and automatic control modes. Manually, the manual batching can be performed according to the formula and mixing time specified in advance, and the computer can automatically control the weighting ingredients and mixing time.
2.3.3.4 Pelletizing system: It is started by a special control cabinet.
2.4 Personnel on duty in the control room shall always pay attention to observing the various signal lights on the simulation screen. If the ingredient storehouse sends empty or full signal, it shall promptly inform the relevant personnel to operate the bunker gate.
2.5 The staff shall, in accordance with the production arrangements, call out that the required material formula should be entered and the computer and its auxiliary devices should be properly operated.
2.6 When operating the feeding device of the pulverizer and the pelletizer, the main motor shall be guaranteed to operate at the rated current without clogging.
2.7 Various trace elements, vitamins, etc., shall be input quantitatively and quantitatively from the feed inlet of the additive of the mixer. Each time the mixer mixes a batch of material, the material shall be fed once, and the input time shall be given by the control room when each batch of material is just beginning to mix. Put signals and invest in time.
3 Maintenance and Repair
3.1 According to the requirements of each equipment instructions for maintenance and service. If there is no special requirement, the bearing injection lubricating oil adopts ZG-3 calcium base lubricating oil, the reducer lubricating oil adopts HJ-60 mechanical oil, if the room temperature is lower than -10°C in winter, HJ-20 mechanical oil is used.
3.2 The equipment should be repaired once within six months and once overhauled within one year. During minor repairs, replace the lubricant, clean the bearings, and replace damaged parts.
3.3 timely adjust the tightness of the belt. When the machine is running, the belt must not have serious slippage.
3.4 The consumable parts such as the hammers and sieves of the pulverizer, the pressure die and the pressure roller of the squashing system shall be promptly repaired, adjusted and replaced. The time of replacement, maintenance, and adjustment depends on the productivity of the feed processing product or the quality of the product. Generally, if productivity is significantly reduced, and the particle molding rate and surface quality do not meet the requirements, it shall be promptly adjusted or replaced.
3.5 After the hammer of the crusher wears, it is necessary to reverse or turn the head and use it. When changing the head, keep the original arrangement of the hammers. When all four corners are worn and new hammers need to be replaced, each set of new hammers must be weighed. The weight difference between each set of hammers must not exceed 5 g. During installation, the hammers must be arranged according to the arrangement diagram of the hammers to avoid strong crushers. shock.
3.6 After the electronic scale is used for half a year, its accuracy must be checked and calibrated.
3.7 After each shift, pellets in the granulator cavity should be flushed with residue from the mold cavity.
3.8 The computer control room is often kept clean and quiet
4 General faults and troubleshooting
4.1 The crusher may have strong vibrations and may cause a lot of noise:
4.1.1 The hammers are not arranged correctly, and the hammers should be reinstalled against the hammer arrangement diagram.
4.1.2 Individual hammer cards do not throw away in the pin shaft and should be handled in time;
4.1.3 Loosening of the bearing housing fixing bolts or bearing damage shall be promptly repaired or replaced.
4.1.4 After the hammer of the crusher or the impeller of the self-propelled fan is worn out, the balance of the rotor is destroyed. In this case, the relevant parts should be replaced in time.
If the inspection is not the above reason, it may be two sets of hammers on the corresponding pin shaft of the grinder rotor, the weight difference is too large, and the corresponding two sets of hammers should be re-selected so that the weight difference does not exceed 5 g.
4.2 The return of ash to the feeding port of the crusher is generally due to the excessive feeding amount, which results in insufficient lifting capacity of the crusher fan and clogging of the screen and suction pipe. At this time, the machine should be shut down in time to remove the material accumulated in the upper and lower chambers of the crusher, dredge the suction pipe, and adjust the feed amount of the crusher.
4.3 Abnormal noise in the crusher is generally caused by a larger piece of hard material entering the crusher, or the internal parts of the crusher are shed in the crushing chamber. After this situation is detected, the machine should be shut down immediately, check the crushing chamber and remove foreign matter.
4.4 The coarse particles of the finished batch materials are generally caused by holes or holes in the screen after the screen has been damaged by abrasion or foreign matter, or the improper installation of the screen, and the lack of fit between the screen edge and the screen edge results in screen leakage. Should be dealt with accordingly.
4.5 The poor fluidity and mixing uniformity of the mixer may not be due to broken or broken belts in the mixer. Timely check the position of the broken arch or the tightness of the drive belt.
4.6 Excessive dust in the operation area is mainly due to the fact that the bag of dust is not tightly closed, and the ash is not tightly sealed at the interfaces of the feeding pipe and the upper cover of the mixer, etc., and the fan casing, the elbow of the feeding pipe, and the suction pipe are used. After time, holes may also wear out and cause dust leakage. Therefore, if excessive dust is found, the above parts should be promptly inspected and disposed of.
4.7 Motor Weakness and Overheating The powerlessness of the motor may be due to a one-phase interruption in the three-phase circuit of the motor. The overheating of the motor may be due to a short-circuit or long-term overload of the motor. In this case, the machine should be shut down in time. Please check the electrical equipment or adjust the workload.
4.8 Particle machine may not be discharged due to:
4.8.1 When the feed inlet and agitator are blocked, the plugging should be promptly removed;
4.8.2 The mold hole is blocked and the mold hole should be opened.
4.8.3 If the moisture content of raw materials is too high or too low, the amount of steam should be adjusted;
4.8.4 The gap between the die and the press roll is too large and the gap should be adjusted to meet the requirements.
4.9 The cause of the unlit signal on the analog screen may be:
4.9.1 Leveler damage, replace the new leveler;
4.9.2 level contactor circuit is bad, should check the line and processing;
4.9.3 The lamp is broken and the lamp should be replaced.
4.10 The reason for the significant drop in productivity may be:
4.10.1 Hammer wear, should replace the hammer or adjust the role of angle;
4.10.2 The screen holes should be blocked and the screen holes should be cleaned;
4.10.3 roller wear, repair or replace the pressure roller;
4.10.4 The voltage drops and escapes the power peak;
4.10.5 Insufficient supply of steam, check the pressure gauge, increase the amount of steam and pressure;
4.10.6 When the feeding amount is too small, check the feeding device and adjust it.
4.10.7 Part of the mold hole is blocked and the blockage is eliminated.
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