Summary of Contents for Famsun Muyang SZLH Series
- Page 1 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...
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Page 2: Table Of Contents
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... - Page 3 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...
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Page 4: 1Safety Instructions
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;... -
Page 5: Description Of Safety 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. - Page 6 ③ Beware ofMechanical injuries: Do not open the operating gatewhen the machine is running and until it has not been completely stopped. ④ Beware of scalding: Do not touch the machine with bare hands when it is normally working. ⑤ Do not remove the guard shield when the machine is running ⑥...
- Page 7 ⑦ Do not climb or stand on the equipment. For the position where the above mentioned safety signs are attached, refer to the following figure:...
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Page 8: Safety Instructions
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. -
Page 9: Safety Instructions In Transport, Storage And Installation
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. - Page 10 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...
- Page 11 (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.
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Page 12: Personal Protection
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. - Page 13 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.
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Page 14: Explosion Protection: Countermeasures Against Dust Explosion And Fire Hazard
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. ② Try not to pile bagged or bulk materials between machines. ③ In 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. - Page 15 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.
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Page 16: Other Safety Precautions (Environmental Protection Measurements)
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. - Page 17 (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.
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Page 18: General Description
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. -
Page 19: Main Structureand Working Principle
(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,... -
Page 20: Specification Of The Pellet Mill
3 Specification of the pellet mill 3.1 Working condition (1)Material characteristics Bulk density: 0.4～0.8 t/m Steam pressure: 0.1～0.4Mpa (2) Environment conditions ① Ambient temperature range: -5~+40° C ② Relative humidity range:35%～85％. ③ Altitude: less than 1000m ④ Temperature range for normal transportation is:-25～55℃ ⑤... -
Page 21: Meanings Of The Model
③The user must provide an over-voltage or surge protection device for the power supply. 3.2Meanings of the model SZLH550×170□□ Configuration type:Ⅰ,Ⅱ,Ⅲ; Improvement code:A ,B ,C; Effective size of the die:inner diameter of ring die×effective width,mm; Model:ring die type Variety code: pellet mill Category code: Feed 3.3Accessory equipments 3.3.1Feeder... -
Page 22: 2Conditioner
3.3.2Conditioner (1)The conditioner is composed of a motor, a main shaft, paddles, a shell, a steam inlet and a molasses inlet, etc. (2)The conditioner housing is made of stainless steel while the paddles are made of high alloy wear resistant material. (3) The conditioner serves the function of introducing steam at a certain pressure and a proper amount of oil and/or molasses through the liquid inlet as required tocondition the compound mash to a certain temperature and moisture so as to improve the feed value... - Page 23 Fig.3-3 Schematic diagram of steam pipeline Fig 3-3 shows the schematic diagram of pipeline for conditioner. Steam is generated from a boiler.The pressure of steam provided by the boiler shall not be less than 0.7MPaand the steam quantity is calculated on the basis of 50 kg per ton pellet plus loss. Generally, the steam pressure in the main pipe shall not be less than 0.7MPaand the pressure of steam into the conditioner after reducing valve is within 0.1~0.4Mpa.
- Page 24 Specifications of valves and pipelines of corresponding steam supply amount (Kg/h) Code Part name 1250 2＂ 2-1/2＂ 3＂ 3＂ 4＂ Pipeline 1/2＂ 1/2＂ 1/2＂ 1/2＂ 3/4＂ Pipeline Shutoff valve 1/2＂ 1/2＂ 1/2＂ 1/2＂ 3/4＂ 1/2＂ 1/2＂ 1/2＂ 1/2＂ 3/4＂ Filter valve 1/2＂...
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Page 25: 4Transportation, Installation And Adjustment
4Transportation, installation and adjustment 4.1Transportation (1) Hoisting ① When lifting ears on machine body shall be correctly used for hoisting. (see Fig.4-1 Hoisting diagram of the pellet mill) ② In order to avoid machine damage, the cables shall be capable of handling the weight of the hoisted equipment(see Table4-1)and not too short. - Page 26 Die(Max.) 225KG 2×427KG(55KW) Main motor 2×562KG(75KW) Feeder 250KG Conditioner 450KG 4450(55KW) Total weight(single-pass conditioner) 4720(75KW) Note:If the pellet mill is equipped with a double-pass or triple-pass conditioners, the weight of corresponding conditioner should be added. (2)Transportation ① Crane cables shall be used to unload and move the pellet mill. ②...
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Page 27: Installation
4.2 Installation 4.2.1Installation of the principal machine (1) Unpacking and inspection ①When the machine arrives at the destination, unpack and check it over carefully if any signs such as collision or rubbing occur during the transportation. ②Check the documents and accessories attached against the packing list.Make a complete record with pictures. -
Page 28: Connection Of Compressed Air Pipeline
[Note]: ①The installation diagram has only listed one specific condiitoner as an example.The installatio diagram for other conditioners shall be provided according to the contract. ②Remove the supporting rack of rotor after installation of the principal machine.The rack is set to eliminate the vibration of rotor during transportation. 4.2.2Connection of compressed air pipeline (1)Correct use of filtered compressed air is significant for normal operation of the pellet mill. - Page 29 (2) Power supple range for normal use:(± 5%V, ± 1Hz). 1) Lay the power cables out and install the circuit protection breakers according to power voltage and motor power as well as the stipulations of the supplier. Correctly connect and check all grounding wires. 2) Install the power cables for the control panels and high voltage cabinets on site.
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Page 30: Running
5 Running 5.1Instrucitons for operations Note: When operation is implemented on the machine, besides the safety cautions specified in Chapter 1, the regulation items of the owner's enterprise shall also be obeyed. (1) Pay attention to the place where the dangerous signs are attached when operating. (2) The safety protection devices can never be dismounted, covered or bypassed at will. -
Page 31: Pelletizing
inspect the contact condition between press rollers and the inner surface of ring die for just slight touching as rollers seem to turn.(Start the hydraulic motor before start the main motors) (9)Check the steam system for normal working and the steam pressure shall be0.1~0.4MPa. -
Page 32: Shutdown
Note: It is allowed to have a current deviation of 5-10A between the two main motors. 1.Roller 2.Rotating direction of roller 3.Ring die 4.Rotating direction of ring die Fig.5-1 Schematic diagram for pelleting 5.4Shutdown Procedure of pellet mill shutdownisas follows: (1)Turn off the liquid application device, steam, and feeder before pellet mill. -
Page 33: Protection Of Pellet Mill
5.5Protection of pellet mill [Precautions]: ① This pellet mill shall be operated by trained and authorized workers. ② All rotary parts should be provided with guards to prevent touching at will. The protective device can only be dismantled by designated tools. ③... - Page 34 Overload protection device of safety pin(Fig.5-3) Safety pin Limit switch Fig.5-3Overload protection device of safety pin ① When hard foreign object enters the pelletizing chamber or when the material flow rate is too high, the pressure between the press rollers and the ring die will exceed the normal working pressure and then the friction resistance between the press rollers and the ring die will increase.
- Page 35 (3)Emergency discharge device(Fig.5-5) A by-pass door is provided at the conical feeding inlet of pelletizing chamber of the pellet mill. If feeding rate into ring die too fast, the mash will accumulate in the pelletizing chamber, causing the load on motor to climb up. Once the motor load exceeds the rated level, the pneumatic cylinder will open the by-pass door automatically to discharge the mash via the by-pass;...
- Page 36 The magnetic between discharge outlet of conditioner and inlet of pellet mill gate can remove the trap iron mixed in materials efficiently and protect the ring die and press rollers from damage. Magnet Fig.5-6 Magnetic separating device...
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Page 37: Maintenance And Repair
6 Maintenance and repair 6.1Instructions for inspection, repair and maintenance Besides safety instructions in Chapter1,comply with the following instructions for inspection,repair and maintenance. (1) Cut off power first beforeinspection,commissioning, repair and maintenance. (2)Only can manual operation to open the operation gate be allowed when power is off and the pellet mill is at complete stop. -
Page 38: Cleaning
6.2 Cleaning Cleanness of driving components is very important,therefore it is necessary to clean following components of the machine on regular basis: Table6-1 Cleaning position and method Cleaning position Cleaning method Press roller, front plate, deflecting Cut off the power whenever checking, replacing the plate, main shaft disc, cutting components or assemblies in the pelletizing chamber,and knives, ring die, die driving rim... -
Page 39: List Of Daily Inspection Items (Prior To Each Running Or Each Running)
(2) MOBIL Mobilux EP2 lubricant grease (3) Domestic No.2 industrial lithium base grease for extreme pressure. 6.3.3 List of daily inspection items (prior to each running or each running) Position Inspection item Cycle Method Solution Check whether the pressure is Increase steam above0.6Mpabefore pressure reducing Everyday... -
Page 40: List Of Regular Inspection Items
6.3.4 List of regular inspection items Position Inspection item Cycle Method Solution Belt Cleaning Once a half year Cleaning Cleaning Filter Cleaning Once a half year Cleaning Cleaning Cleaning Bearing Cleaning and greasing Monthly Refer to Fig.6-1 greasing Belt and belt Check whether tensioning Biweekly Adjusting... -
Page 41: Malfuntion And Troubleshooting
Portable electric Drilling hole drill(0～13mm) Electrical heating device for Heating bearing bearing Retainer pliers Taking snap ring on/off Scissors Cutting Multimeter Resistance, voltage Measuring Hearing needle Checking Scraper Cleaning Metal brush Cleaning Air nozzle Cleaning Barrel 20L/piece Cleaning (bearing, etc.) Dial gauge Measuring clearance between roller and main shaft indicator... - Page 42 1. The press rollers and ring die in 1. Remove the feed from the pelletizing pelletizing chamber are clogged. chamber. The pellet mill cannot 2. Limit switch can't touch the brake disc start. 2. Check the installation of limit switch. or the contact lever on door.
- Page 43 5. The moisture content in feed is too high. 1. The scraper is worn out making a layer of hard material formed between the press 1. Install a new scraper. rollers and the supporting plate of rotor. 2. Tighten theV-belt. Pellet mill is smoking.
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Page 44: Spare Parts
worn 7. Bad formula or grinding too coarse 1. Perfect the cleaning of material. 1. Foreign material in press die 2. Use a thicker ring die with shoulder holes. The ring die is broken when worn to a certain 2. Ring die is too thin. 3.Check whether the driving rim and the fixing degree. -
Page 45: 1Spare Parts
undertake maintenance and repair after one year from the date of leaving the factory to ensure normal use of the customer, but the expenses shall be borne by the customer. 6.6.1Spare parts Some parts and components of this equipment are worn out gradually upon operation. If such parts are still in use after worn out to a certain degree, the performance of equipment should be affected and dangerous accidents should occur accordingly. -
Page 46: 2Ordering List Of Spare Parts
6.6.2Ordering list of spare parts Model Series ofpellet Power mill Part Muyang code Part name Remarks code Note:This list can be copied or made into electronic form.