Replaced by JB/T 8103.3-2005 JB/T 5287.2-1991 Disc-type dairy separator JB/T5287.2-1991 Standard download decompression password: www.bzxz.net

Machinery Industry Standard of the People's Republic of China
JB/T 5287.2-1991
Disc-type dairy separator
Published on July 22, 1991
Implementation on July 1, 1992 by the Ministry of Machinery and Electronics Industry of the People's Republic of China
Mechanical Industry Standard of the People's Republic of China
Disc-type dairy separator
1 Subject content and scope of application
JB/T5287.2-1991
This standard specifies the type and basic parameters, technical requirements and performance test methods of disc-type manual slag discharge type and ring valve slag discharge type dairy separators.
This standard applies to disc-type dairy separators (hereinafter referred to as separators) for clarifying and skimming fresh milk (hereinafter referred to as fresh milk). Cited Standards
GB5408
GB5409
GB5410
GB5411
GB5413
GB5414
GB5416
GB7781
GB10897
GB10898
3 Terms
Detoxified Milk
Cow Milk inspection method
Whole milk powder
Skimmed milk powder
Milk powder inspection method
Cream
Cream inspection method
Separator model compilation method
Disc separator technical conditions
Disc separator test method
3.1 Rated processing capacity
The amount of fresh milk that can be clarified or skimmed by the separator under rated working conditions per unit time. 3.2 Rated working conditions
3.2.1 Milk clarification working conditions
When the separator is at rated speed and the separated fresh milk meets the relevant provisions in Appendix A of GB5408, the operating conditions when the discharge pressure and impurity index of clarified milk meet the design requirements under the separation temperature conditions of 5~10℃ or 35~45℃. 3.2.2 Milk skimming conditions
When the separator is at rated speed, the separated fresh milk meets the relevant provisions in Appendix A of GB5408, and the skimmed milk discharge pressure and fat content meet the design requirements under the separation temperature of 35~45℃. 3.3 Impurity level
IL The number of milligrams of mechanical impurities contained in milk. 3.4 Milk standardization
According to the process requirements and the grade regulations of the standard, the fat content in the skimmed milk is adjusted. Approved by the Ministry of Machinery and Electronics Industry on July 22, 1991 and implemented on July 1, 1992
4 Type and basic parameters
4.1 Type and structure
JB/T5287.2-1991
4.1.1 The type and structure of the separator shall comply with the provisions of GB7781 and Figures 1 and 2. Figure 1 Manual slag discharge disc separator
4.1.2 The standard adjustment methods of milk for the separator are divided into the following two types: a. Internal adjustment;
b. External adjustment.
4.1.3 The control methods of separator slag discharge are divided into the following two types: a. Manual control;
b. Timing program control.
4.2 Basic parameters
The basic parameters of the separator shall comply with the provisions of Table 1. Figure 2 Ring valve slag discharge disc separator
DRN200
DRN250
DRN315
DRN355
DRN400
DRN500
Product model representation method
Nominal diameter
JB/T 5287.21991
Equivalent settlement area
0
6300~7500
5600~6700
5600~6300
5300~6300
5000~6000
4500-5600
6000-6700
5600~6700
5300~6000
5000~5600
4500~5300
40005000
The separator model indication method shall comply with the provisions of GB7781. Marking example:
a. The nominal diameter of the drum is 400mm,
100~130
140/170
Rated processing capacity
1000-2000
2000-3000
3000-5000|| tt | 000
3000-4500
5000-7500
7000~10500
10000~15000
15000~22500
20000-30000
3000-4500
5000-7500
7000~10500
10000~15000
15000~22500
20000~30000
The equivalent sedimentation area is 32×10cm2, used for skimming milk, the fresh milk inlet is closed, the skimmed milk outlet is a centripetal pump, and the ring valve part of the gear drive is marked as follows: the cream outlet is closed, 1Www.bzxZ.net
DBN400/32-12-30 dairy separator
JB/T 5287.21991
b. The nominal diameter of the drum is 500mm, the equivalent sedimentation area is 35×10°cm2, it is used for milk clarification, the fresh milk inlet is clear, the clarified milk outlet is a centripetal pump, and the belt-driven ring valve full-slag type separator is marked as: DHN500/35-21-31 Dairy Separator
5 Technical Requirements
5.1 The design and manufacture of the separator shall comply with this standard and be manufactured according to the drawings and technical documents approved by the prescribed procedures. 5.2 The separator shall be able to adapt to the following environmental conditions: 5.2.1 The ambient temperature for use shall not be higher than 50℃; 5.2.2 The temperature for separating milk shall be 5~45℃.
5.3 Performance Requirements
5.3.1 The general requirements for the performance of the separator shall comply with the provisions of Article 3.3 of GB10897. 5.3.2 The processing capacity and separation effect of the separator shall comply with the following provisions: 5.3.2.1 The processing capacity of the separator under rated conditions shall comply with the provisions of Table 1. 5.3.2.2 When the separator clarifies or skims milk under rated conditions, the impurities in the clarified milk or skimmed milk shall not exceed 1ppm. 5.3.2.3 When the separator separates milk under rated conditions, if the fat content in the fresh milk is not less than that specified in Appendix A of GB5408, the fat content in the skimmed milk shall not exceed 0.05%. 5.3.3 When the separator extracts cream under rated conditions, if the adjustment range of the volume ratio of cream to skimmed milk is 1:3~1:12, the fat content of the cream shall be 25~40%.
5.3.4 The centripetal pump outlet pressure of the separator shall comply with the following provisions: 5.3.4.1 The outlet pressure of clarified milk shall not be less than 9.8×10°Pa; 5.3.4.2 The outlet pressure of skimmed milk shall not be less than 9.8×10*Pa. If milk standardization operation is required, the outlet pressure of cream and skimmed milk shall meet the process requirements.
5.4 Safety, sanitation and environmental protection requirements
5.4.1 The general requirements for safety, sanitation and environmental protection of the separator shall comply with Article 3.4 of GB10897. 5.4.2 The motor and electrical control box of the separator shall comply with the following provisions: 5.4.2.1 The motor and electrical control box shall meet the use requirements of the separator under the specified environmental conditions. 5.4.2.2 If the separator is used in humid tropical areas, its motor and electrical control box shall be safe and reliable. 5.4.3 The separator drum must be dynamically balanced. The allowable unbalance shall be determined according to Appendix A of GB10897. The total dynamic balance of the drum with a diameter greater than 250mm shall not be greater than 1/1000 of the total mass of the drum; the total dynamic balance of the drum with a diameter less than or equal to 250mm shall not be greater than 1/800 of the total mass of the drum.
5.4.4 The design and manufacture of the flow channels and cavities of the separator parts shall fully consider the convenience of cleaning, and there shall be no dead corners suitable for the growth of microorganisms.
5.4.5 The materials used for the parts and seals of the separator that come into contact with milk shall meet the requirements of GB5408, GB5410, GB5411 and GB5414, and shall not affect the sensory indicators and hygiene indicators of milk and dairy products. 5.5 Appearance quality requirements
The appearance quality requirements of the separator shall comply with the requirements of Article 3.5 of GB10897. 4
5.6 Material requirements
JB/T5287.2—1991
The materials used in the separator shall comply with the provisions of Article 3.6 of GB10897. 5.7 Manufacturing process requirements
The manufacturing process requirements of the separator shall comply with the provisions of Article 3.7 of GB10897. 6 Test methods
6.1 The general test method for the mechanical properties of the separator shall comply with the provisions of Chapter 7 of GB10898. 6.2 Test method for performance of the separator
6.2.1 When the separator is running under rated conditions, it is tested with fresh milk and the following are determined: a. Rated processing capacity; b. Separation effect; c. Fat content of cream.
The rated processing capacity shall be determined by the volumetric method or flowmeter method. The measurement time shall not be less than 5 minutes. The arithmetic average of the three measurement data shall be taken. 6.2.2
The sampling of the separation effect of the separator and the fat content of the cream shall comply with the provisions of GB5409, GB5413 and GB5416. 6.2.4
The test of the sample of the separator under the rated working condition shall comply with the following provisions: 6.2.4.1 The method for determining the impurity content of clarified milk or skimmed milk shall comply with the provisions of Article 2.7 of GB5409 and Article 2.7 of GB5413. 6.2.4.2
The method for determining the fat content in skimmed milk shall comply with the provisions of Article 2.3 of GB5409 and Article 2.4 of GB5413. 6.2.4.3 The method for determining the fat content of cream shall comply with the provisions of Article 2.3 of GB5416. Inspection rules
7.1 The general inspection rules for the mechanical properties of the separator shall comply with the provisions of Chapter 4 of GB10897. 7.2 Inspection rules for separation performance
7.2.1 The separation performance test of the separator shall be carried out in a dairy farm or dairy factory, and the test conditions shall comply with the provisions of Article 3.2 of this standard. 7.2.2 The processing capacity, separation effect and fat content of cream of the separator under rated conditions shall comply with the provisions of Articles 5.3.2 and 5.3.3 of this standard. Marking, packaging, transportation and storage
The marking, packaging, transportation and storage of the separator shall comply with the provisions of Chapter 5 of GB10897. 6
Test location
Test date
Impurity
Fat content
Separation temperature
Heavy phase outlet
Pressure
Light phase outlet
Pressure
Additional instructions:
JB/T5287.21991
Appendix A
Record form of separation performance test results of dairy separator (reference)
Test personnel||tt| |Separation performance items
Processing capacity when sampling
Clarified milk
Impurity
When clarifying or
skimming
Cream extraction
Effect
(according to process
requirements)
Skimmed milk
Impurity
Skimmed milk
Cream
Fat content
This standard is proposed and managed by the National Technical Committee for Separation Machinery Standardization. This standard is drafted by the state-owned Nanjing Oasis Machinery Factory. The main drafters of this standard are Bao Guoli, Qiu Weilin and Bao Fengwu. Sampling personnel
Sample 1
Measurement personnel
Sample 2
Sample 3
Average value
People's Republic of China
Machinery industry standard
Disc type dairy separator
JB/T 5287.21991
Published by the China Academy of Mechanical Science
Printed by the China Academy of Mechanical Science
(No. 2, Shouti South Road, Beijing
Postal Code: 100044)
Word count: 12,000
Format: 880×1230
Printing sheet: 1/2
First edition in October 1992
First printing in October 1992
Print run: 1-500
Price: RMB 5.00
Mechanical Industry Standards Service Network: http://www.JB.ac.cn1661821991
Appendix A
Record of test results of separation performance of dairy separator (reference)
Test personnel
Special performance items
Processing capacity when sampling
Clarified milk
Impurity
When clarifying or
skimming
Cream extraction effect
(according to process
requirements)
Skimmed milk
Impurity
Skimmed milk
Cream
Fat content
This standard is proposed and managed by the National Technical Committee for Standardization of Separation Machinery. This standard is drafted by the State-owned Nanjing Oasis Machinery Factory. The main drafters of this standard are Bao Guoli, Qiu Weilin and Bao Fengwu. Sampling personnel
Sample 1
Measurement personnel
Sample 2
Sample 3
Average value
People's Republic of China
Machinery industry standard
Disc type dairy separator
JB/T 5287.21991
Published by the China Academy of Mechanical Science
Printed by the China Academy of Mechanical Science
(No. 2, Shouti South Road, Beijing
Postal Code: 100044)
Word count: 12,000
Format: 880×1230
Printing sheet: 1/2
First edition in October 1992
First printing in October 1992
Print run: 1-500
Price: RMB 5.00
Mechanical Industry Standards Service Network: http://www.JB.ac.cn1661821991
Appendix A
Record of test results of separation performance of dairy separator (reference)
Test personnel
Special performance items
Processing capacity when sampling
Clarified milk
Impurity
When clarifying or
skimming
Cream extraction effect
(according to process
requirements)
Skimmed milk
Impurity
Skimmed milk
Cream
Fat content
This standard is proposed and managed by the National Technical Committee for Standardization of Separation Machinery. This standard is drafted by the State-owned Nanjing Oasis Machinery Factory. The main drafters of this standard are Bao Guoli, Qiu Weilin and Bao Fengwu. Sampling personnel
Sample 1
Measurement personnel
Sample 2
Sample 3
Average value
People's Republic of China
Machinery industry standard
Disc type dairy separator
JB/T 5287.21991
Published by the China Academy of Mechanical Science
Printed by the China Academy of Mechanical Science
(No. 2, Shouti South Road, Beijing
Postal Code: 100044)
Word count: 12,000
Format: 880×1230
Printing sheet: 1/2
First edition in October 1992
First printing in October 1992
Print run: 1-500
Price: RMB 5.00
Mechanical Industry Standards Service Network: http://www.JB.ac.cn16618
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