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Mechanical Industry Standard of the People's Republic of China
JB/T 5685-1991
Expanded Pellet Feed Machine
Test Method
Published on September 13, 1991
Implementation by the Ministry of Machinery and Electronics Industry of the People's Republic of China on July 1, 1992
Mechanical Industry Standard of the People's Republic of China
Expanded Pellet Feed Machine
Test Method
Subject Content and Scope of Application
JB/T 56851991
This standard specifies the product performance test and production test methods of screw extrusion extruded pellet feed machine (hereinafter referred to as extruder). This standard applies to screw extrusion extruded pellet feed machine. It also applies to screw extrusion soft pellet feed machine. 2 Reference standards
GB3768
3 Performance test
3.1 Test purpose
Determination of sound power of noise source
Simplified method
Test method of pellet feed press
The purpose of the performance test is to assess whether the machine's working performance and technical and economic indicators meet the design requirements. 3.2 Test conditions and requirements
3.2.1 Record the technical characteristics of the test prototype in Table 1. 3.2.2
The test site and prototype installation should meet the requirements of performance measurement. 3.2.3 The test power should be an electric motor, and its power should meet the matching requirements. 3.2.4
The average load of the motor during the test shall not exceed 110% of the rated power. 3.2.5
±5%.
The test materials are selected according to the instruction manual. The power supply is three-phase alternating current with a frequency of 50Hz and a voltage of 380V, with a deviation of no more than 3.2.6 The test instruments, meters, measuring tools and inspection tools are shown in Appendix A (reference parts). They must be inspected or calibrated before the test as required, and should have a certificate of inspection and qualification issued by the metrology department. 3.3 Preparation before performance test
3.3.1 Determination of the physical properties of the mixed powder, the results of which are recorded in Table 2. 3.3.1.1 Density
Take samples uniformly from the mixed powder, select five points, measure with a bulk density device, and directly measure the density of the powder. If the conditions are not met, a calibrated measuring container and a method of weighing the material mass can be used. Calculate the density of the material according to formula (1) and find its average value. W,=
Material density, kg/L;
Where: W.
Sampling mass, kg;
VSampling volume, L
3.3.1.2 Moisture content
Evenly sample five times in the mixed powder, and use a moisture meter to directly measure the moisture content of the material. If conditions are unavailable, the material can be uniformly sampled. Approved by the Ministry of Machinery and Electronics Industry on September 13, 1991 and implemented on July 1, 1992
JB/T56851991
Five times, each time not less than 50g, are placed in aluminum boxes and weighed immediately. Dry at a constant temperature of 105±5℃ for 4h, then weigh, calculate according to formula (2), and find the average value. Ws-Wux100%
Wherein: H—relative moisture content of mixed powder; Wis—mass of wet sample, g;
WLmass of dry sample, g.
3.3.1.3 Particle size
Measure according to Appendix A of NJ421.
3.3.2Measure the ambient temperature and humidity of the test site and record them in Table 3.3.4 No-load test
Measure the following items after idling for 10 minutes and record the results in Table 4. 3.4.1 Measure the no-load power, voltage and current of the motor and the whole machine respectively, measure three times and take the average value. 3.4.2 Measure the speed of the main shaft and cutter shaft, measure three times and take the average value. 3.4.3 Measure the noise of the operating site with a sound level meter according to GB3768. 3.5 Load test
The test should be carried out under full load of the prototype. The prototype should be adjusted to the best working condition. After 10 minutes of pelleting, the following measurements should be carried out at the same time. The measurement results are recorded in Table 4.
3.5.1 Pure working hour productivity
Evenly collect pellet feed at the outlet of the extruder. Each time for 15 minutes, a total of three times, weigh them immediately, and insert a point thermometer to measure the temperature of the pellet material and measure the moisture content of the material according to 3.3.1.2. Calculate the pure working hour productivity according to formula (3). P--1
Where: P
Pure working hour productivity, kg/h;
Mass of pellets collected, kg;
Time of collection, h;
-Moisture content of pellet feed, %;
-Moisture content of stored material.
3.5.2 Load power, current, voltage
Measure the whole machine, main motor, pelletizing motor and heating current and voltage. Measure once every 10 minutes, measure three times and take the average value. 3.5.3 Screw and cutter shaft speed
Measure directly with a tachometer, measure three times and take the average value. 3.5.4 Power consumption per ton of material during pure working time
Calculate the power consumption per ton of material during pure working time according to formula (4). N
E. =10004
Where: E
Power consumption per ton of material during pure working time, kWh/t; whole machine load power, kW;
Pure working hour productivity, kg/h.
3.5.5 Load degree
Calculate the load degree of each motor according to formula (5). H.
×100%
Where: H—load degree;
N——motor load power, kW;
N. —motor rated power, kW.
3.5.6 Sleeve and die working temperature
Use a point thermometer to measure the sleeve outlet and take the highest value. 3.5.7 Quality of pellet feed
3.5.7.1 Moisture content
JB/T 56851991
Take pellet feed of no less than 50g every 3min at the outlet of the extruder for five times. After cooling to room temperature, measure the moisture content according to 3.3.1.2 and take the average value.
3.5.7.2 Discharge temperature
In the pellet feed just discharged from the extruder, insert a point thermometer to measure the highest temperature of the feed, measure three times at intervals of 3 minutes, and take the average value.
3.5.7.3 Forming rate and surface quality
Use a container to collect 100~500g of feed from the outlet of the extruder, pass it through a sieve with an aperture of 2.0mm, separate the pellets, broken particles and powder and weigh them separately, and calculate according to formula (6). Take samples and test three times at 5, 15 and 25 minutes after the start of the test, and take the average value. W
Where: L-
Forming rate, %;
Wt—mass of material on the sieve, g;
mass of material under the sieve, g.
Determination of surface quality. Visually check whether the length of the pellets is uniform and whether the surface is smooth. 3.5.7.4 Floating rate
Use the diagonal sampling method, take 20 pellets at each point, and take five points in total. After drying, put them into five containers filled with still water at room temperature, and observe the flow drop number at 0.5, 1, 2, 3, 4, 5, and 6 hours. Calculate according to formula (7), and determine the three average values F=100-×100%
Where: F—is the floating rate at 0.5, 1...-6h; n
—is the number of sinking pellets at 0.5, 1.6h.
3.5.8 Noise in the working area
Measure according to Article 3.4.3.
4 Production test
4.1 Purpose of production test
Assess the performance stability, reliability, economy, convenience of adjustment and maintenance, and durability of parts of the extruder. 4.2 Requirements for production test
4.2.1 The test time for each extruder shall not be less than 200h. 4.2.2 The feed formula for production test shall be determined by the user. (7)
4.2.3 The production test must be carried out by a fixed staff, and the production shall be carried out and the work diary shall be filled in according to the provisions of the instruction manual (see Table 5) 4.3 Determination of production test
4.3.1 During the production test, the production shall be carried out according to the requirements of 3.5.1 to 3.5.7 (except 3.5.7.4) at 50, 100 and 200h respectively. The results shall be recorded in Table 6.
4.3.1.1 The hourly production rate of the shift shall be calculated according to formula (8). Where: E
Hourly production rate of the shift, t/h;
Total amount of pellets produced per shift, t;
Shift time, h.
JB/T5685-1991
4.3.1.2 The pure working hour productivity of a shift is calculated according to formula (9). E=
Wherein: E.
Pure working hour productivity of a shift, t/h;
Total granulation volume during the production verification, t;
Pure working time during the production verification, h.
4.3.1.The power consumption per ton of material in 3 shifts is calculated according to formula (10). W
—Power consumption per ton of material in shift, kWh/t; Where: E.
N——Total power consumption in shift, kWh. (8)
4.3.2 Before and after the production test, the dimensions of the main wearing parts should be measured. During the test, the adjustment, maintenance and failure time, location, degree, cause and elimination should be recorded in detail. When replacing, the wear amount of the damaged parts should be measured, and the cumulative pelletizing number, cumulative pure working hours, cause and date of the parts should be counted and recorded in Table 7. 4.3.3
Reliability in use is calculated according to formula (11).
×100%
Where: K-
Reliability coefficient in use;
T. Accumulated pure working time during the production assessment, h; Accumulated failure time during the production assessment, h. 5 Test report
The test report should include the following contents:
Test purpose;
Introduction to the test prototype;
Test location and conditions;
Performance test report;
Production test report;
Test results and analysis;
Make clear conclusions on the machine structure, performance, maintenance, safety, etc.; Test responsible units, participating units and participants: others.
Measurer:
JB/T5685-1991
Technical features
Dimensions (length×width×height)
Total installed capacity
Productivity
Main engine
Pelletizing motor
Number and diameter of die holes
Net weight of machine
Machine name and model
Date of measurement
Feed formula
Sampling volume L
Sampling weight kg
Wet weight of sample g
Dry weight of sample
Relative moisture content%
Sampling weight
Particle size factor MF
Coefficient of variation of mixing uniformity
Measurer:
Recorder:
Determination of physical properties of mixed powder
Manufacturing unit
Measurement location
Recorder:
Machine name and model
Measurement date
Measurer:
Relative mixing degree in room
Indoor atmospheric pressure||tt ||Water adding temperature
Test voltage
JB/T56851991
Performance test condition measurement table
Manufacturing unit
Measurement location
Measurement items
Operation time before test
Recorder:
Machine name and model
Measurement date
Start reading
End reading
Power consumption
Performance test measurement record table
Manufacturing unit
Measurement Fixed location
Granule motor
Load level
Sampling particle weight
Forming particle weight
Forming rate
Sample wet weight
Sample dry weight
Moisture content
Number of sample particles
Number of settled particles
Floating rate
Material temperature
Surface quality
Membrane pore diameter
Production volume
Production time
Productivity
Material power consumption
dB (A)
Measurer:
Machine name and model
Test date
Start working time
End working time
Power consumption during shift
Start and end time
Failure-free operation time
Measurer:
JB/T 56851991
Continued Table 4
Table 5 Production test work diary
Recorder:
Manufacturing unit
Test location
Test voltage
Material formula
Granulation amount
Recorder:
Machine name and model
Measurement date
Start working time
End working time
Pure working time
Start and end time
Shift time
Total power consumption during shift time
Power consumption per ton of material during shift time
Measurer:
JB/T56851991
Failure time
Production verification record
Manufacturing unit
Measurement location
Test voltage
Feed formula
Other time
Shift hourly productivity
Shift pure working hourly productivity
Recorder:
Table 7 Record of wear, deformation and damage of parts Machine name and model
Measurement location
Parts
Name and
Measurer:
Easy to wearWww.bzxZ.net
Parts hardness
Before test
Manufacturing unit
Measurement date
Wear parts
Pelletizing amount
After test
Wear amount
Pure Work
Recorder:
Electricity meter reading
Deformed and damaged parts
Granulation amount
Pure work
Granulation amount
Deformation or damage
Cause
Treatment measures
Ammeter
Voltmeter
Three-phase electricity meter
Three-phase power meter
Constant temperature box
Moisture rapid tester
Dryer
Point thermometer
Bulk density instrument
Sound level meter
Hygrometer
Barometer
Photoelectric tachometer
Standard test sieve
Mercury thermometer
Vernier caliper||tt ||2M steel tape measure
Additional instructions:
JB/T56851991
Appendix A
Main instruments, meters, equipment and measuring tools for testing (reference parts)
Accuracy shall not be lower than Class 2.0
Accuracy shall not be lower than Class 2.0
Accuracy shall not be lower than Class 2.0
Accuracy shall not be lower than Class 2.0
0~200℃
Weighing 500g, sensitivity 0.5g
Accuracy 0.001kg
0~100℃
0~125mm,
Reading value 0.02mm
This standard is under the jurisdiction of the China Agricultural Mechanization Science Research Institute of the Ministry of Machinery and Electronics Industry. This standard is drafted by the Jiangsu Agricultural Machinery Research Institute and the Hunan Agricultural Machinery Research Institute. The main drafters of this standard are Yuan Chao, Yan Peichu and Luo Zhaoqi. 1 set
People's Republic of China
Mechanical Industry Standard
Expanded Pellet Feed Machine
Test Method
JB/T56851991
Published and issued by the China Academy of Mechanical Science
Printed by the China Academy of Mechanical Science
(No. 2 Shouti South Road, Beijing
Postal Code 100044)
Print Sheet 7/8
Format 880×1230
Word Count 18,000
First Edition in December 1991
First Printing in December 1991
Print Quantity 1-500
Price 1.80 Yuan
Mechanical Industry Standard Service Network: http://www.JB.ac.cn1661_s89s/af3
The reliability in use is calculated according to formula (11).
×100%
Wherein: K-
Reliability coefficient in use;
T. Accumulated pure working time during the production assessment, h; Accumulated failure time during the production assessment, h. 5 Test report
The test report should include the following contents:
Test purpose;
Introduction to the test prototype;
Test location and conditions;
Performance test report;
Production test report;
Test results and analysis;
Make clear conclusions on the structure, performance, maintenance, safety, etc. of the machine; Test responsible units, participating units and participants: others.
Measurer:
JB/T5685-1991
Technical features
Dimensions (length×width×height)
Total installed capacity
Productivity
Main engine
Pelletizing motor
Number and diameter of die holes
Net weight of machine
Machine name and model
Date of measurement
Feed formula
Sampling volume L
Sampling weight kg
Wet weight of sample g
Dry weight of sample
Relative moisture content%
Sampling weight
Particle size factor MF
Coefficient of variation of mixing uniformity
Measurer:
Recorder:
Determination of physical properties of mixed powder
Manufacturing unit
Measurement location
Recorder:
Machine name and model
Measurement date
Measurer:
Relative mixing degree in room
Indoor atmospheric pressure||tt ||Water adding temperature
Test voltage
JB/T56851991
Performance test condition measurement table
Manufacturing unit
Measurement location
Measurement items
Operation time before test
Recorder:
Machine name and model
Measurement date
Start reading
End reading
Power consumption
Performance test measurement record table
Manufacturing unit
Measurement Fixed location
Granule motor
Load level
Sampling particle weight
Forming particle weight
Forming rate
Sample wet weight
Sample dry weight
Moisture content
Number of sample particles
Number of settled particles
Floating rate
Material temperature
Surface quality
Membrane pore diameter
Production volume
Production time
Productivity
Material power consumption
dB (A)
Measurer:
Machine name and model
Test date
Start working time
End working time
Power consumption during shift
Start and end time
Failure-free operation time
Measurer:
JB/T 56851991
Continued Table 4
Table 5 Production test work diary
Recorder:
Manufacturing unit
Test location
Test voltage
Material formula
Granulation amount
Recorder:
Machine name and model
Measurement date
Start working time
End working time
Pure working time
Start and end time
Shift time
Total power consumption during shift time
Power consumption per ton of material during shift time
Measurer:
JB/T56851991
Failure time
Production verification record
Manufacturing unit
Measurement location
Test voltage
Feed formula
Other time
Shift hourly productivity
Shift pure working hourly productivity
Recorder:
Table 7 Record of wear, deformation and damage of parts Machine name and model
Measurement location
Parts
Name and
Measurer:
Easy to wear
Parts hardness
Before test
Manufacturing unit
Measurement date
Wear parts
Pelletizing amount
After test
Wear amount
Pure Work
Recorder:
Electricity meter reading
Deformed and damaged parts
Granulation amount
Pure work
Granulation amount
Deformation or damage
Cause
Treatment measures
Ammeter
Voltmeter
Three-phase electricity meter
Three-phase power meter
Constant temperature box
Moisture rapid tester
Dryer
Point thermometer
Bulk density instrument
Sound level meter
Hygrometer
Barometer
Photoelectric tachometer
Standard test sieve
Mercury thermometer
Vernier caliper||tt ||2M steel tape measure
Additional instructions:
JB/T56851991
Appendix A
Main instruments, meters, equipment and measuring tools for testing (reference parts)
Accuracy shall not be lower than Class 2.0
Accuracy shall not be lower than Class 2.0
Accuracy shall not be lower than Class 2.0
Accuracy shall not be lower than Class 2.0
0~200℃
Weighing 500g, sensitivity 0.5g
Accuracy 0.001kg
0~100℃
0~125mm,
Reading value 0.02mm
This standard is under the jurisdiction of the China Agricultural Mechanization Science Research Institute of the Ministry of Machinery and Electronics Industry. This standard is drafted by the Jiangsu Agricultural Machinery Research Institute and the Hunan Agricultural Machinery Research Institute. The main drafters of this standard are Yuan Chao, Yan Peichu and Luo Zhaoqi. 1 set
People's Republic of China
Mechanical Industry Standard
Expanded Pellet Feed Machine
Test Method
JB/T56851991
Published and issued by the China Academy of Mechanical Science
Printed by the China Academy of Mechanical Science
(No. 2 Shouti South Road, Beijing
Postal Code 100044)
Print Sheet 7/8
Format 880×1230
Word Count 18,000
First Edition in December 1991
First Printing in December 1991
Print Quantity 1-500
Price 1.80 Yuan
Mechanical Industry Standard Service Network: http://www.JB.ac.cn1661_s89s/af3
The reliability in use is calculated according to formula (11).
×100%
Wherein: K-
Reliability coefficient in use;
T. Accumulated pure working time during the production assessment, h; Accumulated failure time during the production assessment, h. 5 Test report
The test report should include the following contents:
Test purpose;
Introduction to the test prototype;
Test location and conditions;
Performance test report;
Production test report;
Test results and analysis;
Make clear conclusions on the structure, performance, maintenance, safety, etc. of the machine; Test responsible units, participating units and participants: others.
Measurer:
JB/T5685-1991
Technical features
Dimensions (length×width×height)
Total installed capacity
Productivity
Main engine
Pelletizing motor
Number and diameter of die holes
Net weight of machine
Machine name and model
Date of measurement
Feed formula
Sampling volume L
Sampling weight kg
Wet weight of sample g
Dry weight of sample
Relative moisture content%
Sampling weight
Particle size factor MF
Coefficient of variation of mixing uniformity
Measurer:
Recorder:
Determination of physical properties of mixed powder
Manufacturing unit
Measurement location
Recorder:
Machine name and model
Measurement date
Measurer:
Relative mixing degree in room
Indoor atmospheric pressure||tt ||Water adding temperature
Test voltage
JB/T56851991
Performance test condition measurement table
Manufacturing unit
Measurement location
Measurement items
Operation time before test
Recorder:
Machine name and model
Measurement date
Start reading
End reading
Power consumption
Performance test measurement record table
Manufacturing unit
Measurement Fixed location
Granule motor
Load level
Sampling particle weight
Forming particle weight
Forming rate
Sample wet weight
Sample dry weight
Moisture content
Number of sample particles
Number of settled particles
Floating rate
Material temperature
Surface quality
Membrane pore diameter
Production volume
Production time
Productivity
Material power consumption
dB (A)
Measurer:
Machine name and model
Test date
Start working time
End working time
Power consumption during shift
Start and end time
Failure-free operation time
Measurer:
JB/T 56851991
Continued Table 4
Table 5 Production test work diary
Recorder:
Manufacturing unit
Test location
Test voltage
Material formula
Granulation amount
Recorder:
Machine name and model
Measurement date
Start working time
End working time
Pure working time
Start and end time
Shift time
Total power consumption during shift time
Power consumption per ton of material during shift time
Measurer:
JB/T56851991
Failure time
Production verification record
Manufacturing unit
Measurement location
Test voltage
Feed formula
Other time
Shift hourly productivity
Shift pure working hourly productivity
Recorder:
Table 7 Record of wear, deformation and damage of parts Machine name and model
Measurement location
Parts
Name and
Measurer:
Easy to wear
Parts hardness
Before test
Manufacturing unit
Measurement date
Wear parts
Pelletizing amount
After test
Wear amount
Pure Work
Recorder:
Electricity meter reading
Deformed and damaged parts
Granulation amount
Pure work
Granulation amount
Deformation or damage
Cause
Treatment measures
Ammeter
Voltmeter
Three-phase electricity meter
Three-phase power meter
Constant temperature box
Moisture rapid tester
Dryer
Point thermometer
Bulk density instrument
Sound level meter
Hygrometer
Barometer
Photoelectric tachometer
Standard test sieve
Mercury thermometer
Vernier caliper||tt ||2M steel tape measure
Additional instructions:
JB/T56851991
Appendix A
Main instruments, meters, equipment and measuring tools for testing (reference parts)
Accuracy shall not be lower than Class 2.0
Accuracy shall not be lower than Class 2.0
Accuracy shall not be lower than Class 2.0
Accuracy shall not be lower than Class 2.0
0~200℃
Weighing 500g, sensitivity 0.5g
Accuracy 0.001kg
0~100℃
0~125mm,
Reading value 0.02mm
This standard is under the jurisdiction of the China Agricultural Mechanization Science Research Institute of the Ministry of Machinery and Electronics Industry. This standard is drafted by the Jiangsu Agricultural Machinery Research Institute and the Hunan Agricultural Machinery Research Institute. The main drafters of this standard are Yuan Chao, Yan Peichu and Luo Zhaoqi. 1 set
People's Republic of China
Mechanical Industry Standard
Expanded Pellet Feed Machine
Test Method
JB/T56851991
Published and issued by the China Academy of Mechanical Science
Printed by the China Academy of Mechanical Science
(No. 2 Shouti South Road, Beijing
Postal Code 100044)
Print Sheet 7/8
Format 880×1230
Word Count 18,000
First Edition in December 1991
First Printing in December 1991
Print Quantity 1-500
Price 1.80 Yuan
Mechanical Industry Standard Service Network: http://www.JB.ac.cn1661_s89s/afcn1661_s89s /afcn1661_s89s /afcn1661_s89s /afcn1661_s89s /af
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