Famsun Muyang SZLH Series User manual

Muyang SZLH Series
Belt Pellet Mill
Concise and practical manual
This book is for operation and maintenance only.
It does not have any legal effect,
For details, please refer to the product instructions

目录二
CONTENTS
..........................................................................................................................................1
1Safety instructions ...........................................................................................................1
1.1Environmental conditions.......................................................................................1
1.2Description of warning signs..................................................................................1
1.3Description of safety signs.....................................................................................2
1.4 Safety instructions.................................................................................................5
1.5Safety instructions in transport, storage and installation.........................................6
1.6 Safety instructions in operation, inspection and maintenance...............................6
1.7Personal protection................................................................................................9
1.8 Explosion Protection: Countermeasures against dust explosion and fire hazard.11
1.9 Other safety precautions (environmental protection measurements)...................13
2 General Description........................................................................................................1
2.1Application and adaptability ...................................................................................1
2.2Main features and functions...................................................................................1
2.3Main structureand working principle.......................................................................2
3 Specification of the pellet mill..........................................................................................1
3.1 Working condition .................................................................................................1
3.2Meanings of the model...........................................................................................2
3.3Accessory equipments...........................................................................................2
3.3.1Feeder.........................................................................................................2
3.3.2Conditioner ..................................................................................................3
3.3.3 Steam system.............................................................................................3
4Transportation, installation and adjustment......................................................................6
4.1Transportation........................................................................................................6
4.2 Installation ............................................................................................................8
4.2.1Installation of the principal machine .............................................................8
4.2.2 Connection of compressed air pipeline .......................................................9
4.2.3Installation of steam pipeline........................................................................9

目录二
4.2.4 Electric connection......................................................................................9
5 Running........................................................................................................................11
5.1Instrucitons for operations....................................................................................11
5.2Preparation work..................................................................................................11
5.3Pelletizing............................................................................................................12
5.4 Shutdown............................................................................................................13
5.5 Protection of pellet mill........................................................................................14
6 Maintenance and repair................................................................................................18
6.1Instructions for inspection, repair and maintenance .............................................18
6.2 Cleaning .............................................................................................................19
6.3 Lubrication..........................................................................................................19
6.3.1Selection of lubricant grease......................................................................19
6.3.3 List of daily inspection items (prior to each running or each running) ........20
6.3.4 List of regular inspection items..................................................................21
6.4Tools for repair and maintenance.........................................................................21
6.5 Malfuntion and troubleshooting...........................................................................22
6.6 Spare parts.........................................................................................................25
6.6.1Spare parts................................................................................................26
6.6.2Ordering list of spare parts.........................................................................27

1Safety instructions
1.1Environmental conditions
Please install the equipment according to the following conditions for safe operations.
(1) Please install this equipment indoors according to following conditions:
．Ambient temperature range:-5～+40℃.
．Relative humidity range:35％～85％.
．Altitude: less than 1000m
．Ensure indoor clean and well vented
．Ensure that the equipment far away from the corrosive gas, inflammable and explosive
gas as well as steam
(2) Power source: as for Voltage and Frequency, please refer to the motor nameplate;
Compressed air pressure≧0.6Mpa.
(3)To facilitate use, operation and maintenance and inspection of the machine,
adequateclearances around it shall be required.
(4)Please place the equipment horizontally.
(5) The vibration by other complicated environmental conditions may not exceed12 mm·s-1.
1.2Description of warning signs
(1) In order to well understand this operation Manual, the safety warning signs are divided
into following kinds.
(2) These warning signs have been set up according to the operating regulations and
safety precautions for this equipment. In order to avoid dangerous accidents, this
Operation Manual also includes detailed preventions. Please operate this equipment
according to the instructions based on sufficient understanding of warning signs.

This sign warns: In order to avoid death and serious injury
accidents, please be sure to operate this equipment according to
relevant stipulations of safety instructions.
This sign warns: in order to avoid potential dangerous accidents
and serious injuries, please follow relevant guidelines of safety
instructions to operate the equipment.
This sign warns:In order to avoid slight wound and potential
moderate injury accidents, please operate this equipment
according to relevant stipulations of safety instructions.
1.3Description of safety signs
(1) Relevant safety signs are posted at the corresponding dangerous positions of this
equipment to personal safety.
(2)Please well understanding the safety signs.
(3) Please place these safety signs near the equipment.
(4) When these safety signs have fallen off or been damaged, please replace them with
new signs.
(5) If you want to order new signs, please contact our company.
①Beware of electric shock: Do not open the junction box until the power supply is cut off.
②The equipment must be repaired and maintained according to the Operation Manual.

③Beware ofMechanical injuries: Do not open the operating gatewhen the machine is
running and until it has not been completely stopped.
④Beware of scalding: Do not touch the machine with bare hands when it is normally
working.
⑤Do not remove the guard shield when the machine is running
⑥Protective gloves must be wornwhen inspecting and repairing the equipment.

⑦Do not climb or stand on the equipment.
For the position where the above mentioned safety signs are attached, refer to the
following figure:

1.4 Safety instructions
(1)The said equipment operators refer to all personnel who participate in
operation,inspection and maintenance etc.
(2)The equipment operator must possess satisfactory understanding of the
Operation manual.
(3)The owner has the duty and obligation to educate all operation personnel
with the safety instructions of the Operation Manual for the equipment.
(4)While obeying all the safety instructions herewith, the users must comply
with other safety regulation and stipulations to prevent accidents.
(5)All related employees should receive safety training. The enterprise
management should be in charge of the training and observe the national, local
and other company safety regulations.
(6)All the responsibilities for any accidents or damage to the equipment shall
not be borne by manufacture and commission agent if the equipment is not
operated according to the Operation manual.
(7)Please install, use and operate the equipment correctly. Whoever taking off
of guard or signs to destroy its function should be responsible for the safety
consequences.
(8)Any changes to the equipment shall not affect the functions and safety
performances of the equipment.
(9) Be sure to run the Pellet Mill under strict obeying all regulations for
prevention of accidents.
(10)If any accidents are caused due to failure in obeying the stipulations of the
Operation Manual and the control system for Muyang equipment is not used as
per the conditions mentioned above, the Muyang will deny any responsibility. If
Muyang is required to take the responsibility, we will reserve the right to
investigate and affix the liability of the party who is responsible.

1.5Safety instructions in transport, storage and installation
(1)The equipment must be placed and handled by professionals.
(2)Please use designated tools (steel cable, crane, hoist etc.) to lift the
equipment according to designated sequence and method.
(3) Authorized staff only for lift operation.
(4) In order to prevent serious injury accidents, no one is allowed to be under
the equipment during hoisting.
(5)The capacity of hoisting tools should be more than total weight of the
equipment.
(6) When the equipment is stored temporarily, please place the equipment at
level and keep a constant temperature and indoors clean.
(7) For transportation, it is not allowed to damage the equipment by packing. It
should be reported to the manager immediately in case of any machine
damage and missing parts during transportation.
(8) In installation, enough clearances should be allowed for future maintenance
and replacement of the equipment.
(9) Prior to installation, all machine parts must be kept in their original package.
The machine parts and packing boxes should be properly covered and stored
in places sheltered from rain, sunlight and damp.
(10)The cover plate, protection hood or guard grating are usually installed and
delivered together with the machine. They can only be disassembled with tools.
And the machines required with the operation devices can never put into work
until such devices have been properly installed.
1.6 Safety instructions in operation, inspection and maintenance
(1) The operation, inspection, repair and maintenance of the equipment shall be
carried out only by the trained technical personnel according to

applicablespecifications provided together with the equipment. Electric
installation shall be performed only by professional persons according to
relevant electric safety standards.
(2)Whenever maintenance or repairing is to be done the power must be cut off
so as to prevent the motor from unauthorized start.
(3)Maintenance and installation should be done after power shutdown.For
operation, installation,repair and maintenance in this case,please be sure to
turn off and lock the main power switch, and place the execution sign plates on
the workshop gateway, in front of the electric control cabinet in the control room
and near the pellet mill respectively, so as to prevent the motor from accidental
tripping.
(4)In operation, a special attention shall be paid to the positions with attached
safety signs.
(5)Do not operate when the safety protection device and operating gate are
open. It is prohibited to open the operating gate until the machine comes to full
stop.
(6)If any trouble occurs in the operating gate and safety protection device,
please repair or replace them at once.
(7) The safety protection devices can never be dismounted, covered or
bypassed at liberty. It can never be opened until the machine has completely
stopped. And the machine can only be started when these safety protection
devices are in good order.
(8) The security mechanism of the operating gate is equipped with a limit switch,
it must be correctly wired as per requirement to ensure the power-off when the
access door is opened, and additionally in such case the machine cannot be
started. Owing to the fact that this safety mechanism is related to life safety, it
can never be removed or discarded! Whenever there is anything wrong with
this mechanism, it shouldbe repaired or replaced promptly.
(9) When the machine is scheduled to stop, the pellet mill must be prevented
from being started by any unauthorized start.

(10)Except the maintenance of the equipment, it is not allowed to take off the
guards of the belt pulley.
(11) When the safety guards or operating gates have to be opened or the safety
devices have to be disassembled in order to inspect, adjust, repair and
maintain the equipment or replace the parts, required safety measures must be
in place prior to such operations.
(12)When the machine is running, it is strictly forbidden to put fingers near the
running components.Such work as inspection, maintenance and cleaning etc
cannot be done until the principal machine have been completely stopped.
(13) In case maintenance and inspection work should be done with a welder or
other tools that can generate sparks, strict safety precautions must be taken
against dust explosion and combustion (see "Explosion protection").
(14)If the parts are damaged, please repair or replace them immediately.
(15)Ensure the safety of the electric system. Before the electric circuit is cut off,
it is strictly prohibited to open the junction box to avoid electric shock.
(16)The electric control system of the pellet mill must comply with the following
instructions. Otherwise, the technical safety responsibility of the supplier will be
denied.
①The electric control system of the pellet mill must be supplied by Muyang.
②The equipment must be checked up by an expert from Muyang before
commissioning.
③The electric control is a component part of the safety regulations for accident
prevention.
④Prior to commissioning the control system must be tested by an expert from
Muyangaccording to the testing list and a permit will be signed off by the expert.
⑤If the control system for Muyang equipment does not go through the
conditions above, Muyang will deny any responsibility. If Muyang is required to
take the responsibility, we will reserve the right to investigate and affix the
liability of the party who is responsible.

1.7Personal protection
(1) All the mechanical equipments manufactured by Jiangsu MuyangCo., Ltd
has safety devices that are consistent with modern technical frontier and
generally effective safety rules prior to shipping out, so that the customers can
use the machines in accordance with the regulations.
(2) If the operators employed lack of communication skills, the owner has the
responsibility to explain to them clearly where dangers exist and warn them that
special attention should be exercised.
(3) In order to ensure safety and health for the workers during production
process, it is necessary to use personal protection equipment (such as gloves,
breathing masks and safety shoes) during operation.
(4)Please execute the special regulations on accidents prevention in the
operation manual provided by Muyang.
(5)The enterprises are obligated to execute following regulations to
ensureoperators'safety.
①The coupling shield should be amounted at any time and kept in place. It is
very dangerous when they are opened or dismantled. It may cause casualty
accident. This is also applicable to the preventive device of the robot.
②The safety limit switches should always be kept in good order. Bypass or
discard of the safety limit switches is not allowed.
③The drive motor must be switched off completely to stop the machine when
carrying out inspection, commissioning, repair and maintenance. This can be
done through a full-phase cut-off and lockable switch which is installed near the
machine or on the operation desk, or the control panel on site. It is not enough
only to screw off the fuse wire!
④If the machine needs other energy like pneumatic, hydraulic, steam and hot
water, it is necessary to cut off their energy supply or turn off the switch and
torelease the pressure in the internal pipeline system of the machine.
⑤As for handling heated or cooled parts and components of the machine,
watch for the danger of burning or scalding, frost-bitting.

⑥If you have pressed the emergency-stop switch to shut down the machine
and you want to reset the switch, it is not permissible to only re-press this
button rather to turn on the main switch restart the machine.And the machine
can only be started by re-closing the main switch first.
⑦If some machines are equipped with a partial shutdown system, especial
care should be taken. Read the instruction manuals attached with the machine
carefully. In such machines with a partial shutdown system, temperature will
rise because pressure or vacuum will build up after they have been used for a
while.
⑧The cleaning, lubricating and oiling of the machine or its parts and
components may be carried out only when the machine is not in running. If you
have to climb on or enter the machine to do such work, the following rule shall
be mandatory without exception: the power supply of motors must be cut off
completely and the switch must be locked out with warning tag attached.
Attention must be paid to safety measures for climbing.
⑨Be careful: sampling from inside of the machine can never be carried out
unless there is not any danger. Usually, the samples can be taken from the pipe
under themachine instead of inside of machine.
⑩Clean out the deposited dust, dirt and materials frequently. Keeping the
machine clean can enhance production safety and houskeeping level of
workshop, and is also beneficial to prevent dust explosion.
(11)In case of oil (grease) leakage, clean it up immediately and seal well the
place whereleakage occurs. Oil or grease leakage on the floor will easily bring
about hazards to the operators.
(12)During operation, the machine must be equipped with safety devices,
which may be neither removed and abandoned nor reduced in functions.
Otherwise, Muyang is not responsible for any accidents resulted wherefrom
and reserve the right to ascertain where the responsibility lies.

1.8 Explosion Protection: Countermeasures against dust explosion and fire
hazard
(1)General housekeeping
①Keeping the work place with combustible dust free is an important condition
for safe production.
②Try not to pile bagged or bulk materials between machines.
③In order to reduce dust emission to surrounding areas, all conveying devices,
air pipes,filter bags should be kept in good condition without any leakage
especially pipes and covers of the conveying devices.
④In order to reduce dust explosion hazard, dusts must be cleaned out
frequently and effectively everywhere.
⑤Keep all motors free of deposited dusts.
(2)Regular inspection and maintenance
①Check the safety devices such as speed monitor or the like apparatus
regularly, at least once a week.
②Check and clean magnetic separators,at least once a day.
③In order to avoid heat generation, it is necessary to regularly check the
functions of all main shafts and bearings, at least once a week, and to fill up
with lubricant on regular basis.
(3)Electric apparatus
Regularly check the electric apparatus and articles, and special attention should be
paid to the following:
①It is forbidden to use any flashlights and other lamps without shielding or
explosion-proof glass.
②It is forbidden to use any cable extension or electric heater.

③It is necessary to immediately repair or replace the electric apparatus and
equipment if any failure occurs.
④The cables without conduits are not allowed to be installed on the floor.
⑤Cut off the power supply of the machine after work.
⑥An electrician should be assigned to check the insulation of all the power
lines of electric network according to relevant regulations, at least once a year.
⑦The machine should be grounded so as to prevent static sparks and the
resistance to grounding current from all components to ground should not
exceed 106Ω.
⑧Power supply connection
a) The applicable regulations by local safety authorities should be obeyed. For
example, a breaker for circuit protection should be installed on power line
according to local regulation.
b) Check whether the operating voltage and frequency are in line with the data
displayed on the machine nameplate and control cabinet.
c) All power lines of control system should be connected as per schematic
diagram to hook up withcorrect switch phase line of a single-phase source.
(4)Smoking and welding
①Smoking is forbidden, which is applicable to all workers and staff of the
enterprise as well as guests, customers, foreigners and drivers visiting the
factory.
②If the tools such as welding machine or soldering lamp (flame soldering lamp)
etc. are required for repair or installation, do as best as possible to arrange the
work in a special workshop or on a designated site.
③If it is necessary to carry out occasional welding or the like work directly in
production area or warehouse, written applications must be submitted to a

related supervisor in advance for written approval. The above mentioned
operations can be carried out only when special safety measures have been
taken, such as laying water soaked canvas or the covering canvas special for
the surrounding area and preparing fire extinguishers. After completion of the
operation,the welding site and the surrounding area are to be monitored at least
for 10hours.
④The gas cutting sparks are very dangerous. They can travel cross through
the narrow clearance of walls and drop downstairs or to the next rooms, or even
fly off10m away in distance. If the sparks drop in dusts, fire hazard may occur at
any time.
⑤Welding is prohibited on a running conveyor. If the welding work is required,
shut down the machine first, and then make a thorough cleaning and isolate
both sides of the welding site tightly with materials like mineral wool to avoid
connecting with other conveying devices, silos or tanks. If the work is to be
done on the chutes or conveying pipes,it is necessary to disassemble them or
disconnect their lower ends with silo or tank and seal them to avoid welding
sparks entering the conveying pipes or silos.
(5) Beware of static electricity
①To ensure the safety of electric circuits and avoid explosion resulted from
spark discharge.
②The paint coat at the electric connections must be removed.
1.9 Other safety precautions (environmental protection measurements)
If you decide not to use the machine any longer after it is used for some years,the
measures for environmental protection and reutilization should be taken.

(1)Drain the liquids inside the machine (like motor oil, gearbox oil, brake oil and
coolant etc.) into special containers and send them to the designated
workshop.
(2)The plastic parts shall be picked up for reutilization.
(3)The metal parts shall be sorted out for special handling.

2 General Description
MuyangSZLH550×170pellet mill is an advanced mill manufactured by Muyang. The
entire manufacturing process is in full compliance with international technical standards.
2.1Application and adaptability
(1) This pellet mill is specially used for animal feed processing, generally for processing
powdery, flowable and easily pelletized materials into feed pellets for poultry, livestock, fish
and special aquatic feed.
(2)For the operation efficiency and safety of the machine, the altitude at the service region
of this machine should be less than 1000m, temperature range -5℃～40℃,and air relative
humidity range 30%~ 85%.
(3)Do not useit in food processing.
(4) If the region does not meet the above conditions, please give special instructions at
ordering.
2.2Main features and functions
(1)Double-motor , V-belt and synchronous cog belt (timing belt) step-driving system is
employed for this machine, which is characterized by ideal drive ratio, great driving
moment, smooth rotation,simple structure, small space occupation, high output, low noise,
and easy operation & maintenance.
(2) SZLH550×170 Pellet Mill is configured with three or two press rollers, and each of them
is equipped with deflection plate for material distribution and inner scraper for cleaning,
which provides even feeding, high capacity, and quality pellets.
(3)The overload protection device of hydraulic clamping type and automatic belt tensioning
mechanism as well as automatic lubricating device are optional as per user requirement,
which allows fast,easy,safe and reliable operation.
(4)Die holes ranging from φ1.2 to φ12 with different thickness are available for customers
to selecttoachieve the optimum technical and economicalbenefits.

(5)The machine is featured by an advanced feeder with VFD, an overload protection
device, external discharge, and speed monitoring device for motor load.
(6)The configuration of enhanced conditioner with steam additionfunction,can be
double-pass or triple-pass, or jacket-type according to customers' needs.
2.3Main structureand working principle
The pellet mill consists of a feeder, conditioner(s) and a principal machine(mainly
including main motors, drive countershaft assembly, rotor assembly, ring die, press rollers,
cutter assembly, die lifting device, lubrication system, and hydraulic system (optional for
SZLH550x170),etc).
The working procedure is shown as follows:
Mixed mash of a moisture content below 18% is from mash bin to feeding screw before
entering the conditioner at a proper flow rate by adjusting the frequency inverter to control
motor rotating speed.The material will be sufficiently mixed with steam by the mixing effect
of stirring paddles in the conditioner.Molassess or oil/fat can be added into the conditioner
through molassess inlet if necessary.The temperature of the conditioned compound mash
is normally controlled within 65~95℃and the moisture is 14~18% according to different
formulations. Finally the mash drops into the pelletizing chamber and is compressed into
pellets by the press rollers and the ring die

3 Specification of the pellet mill
3.1 Working condition
(1)Material characteristics
Bulk density: 0.4～0.8 t/m3
Steam pressure: 0.1～0.4Mpa
(2) Environment conditions
①Ambient temperature range: -5~+40°C
②Relative humidity range:35%～85％.
③Altitude: less than 1000m
④Temperature range for normal transportation is:-25～55℃
⑤Air supply for normal use: 0.4Mpa.
⑥Voltage for normal use: AC380V
Note: if the actual condition fails to comply with the environment condition
No.①, the temperature shall be adjusted properly.If it fails to comply with
condition No.⑥, please refer to the motor specifications to customize the gear
motor.
(3)Configuration conditions
①The Pellet Mill should match the equipment upstream and downstream in
process flow.
②The power supply range for normal use (permissible voltage deviation ±5%
and frequency deviation ±1Hz).