Replaced by JB/T 8103.6-2005 JB/T 7231-1994 Disc-type vegetable oil separator JB/T7231-1994 Standard download decompression password: www.bzxz.net

Machinery Industry Standard of the People's Republic of China
JB/T7231--94
Disc-type vegetable oil separator
Published on July 18, 1994
Ministry of Machinery Industry of the People's Republic of China
Implementation on July 1, 1995
Mechanical Industry Standard of the People's Republic of China
Disc-type vegetable oil separator
1 Subject content and scope of application
JB/T 723194
This standard specifies the terminology, type and basic parameters, technical requirements, test methods, inspection rules and markings, packaging, transportation and storage of disc-type vegetable oil separators (hereinafter referred to as separators). This standard applies to separators for separating soap stock, gum and water in edible vegetable oil refining. 2 Reference standards
GB1497
GB1536
GB 2716
GB5083
GB5528
GB5529
GB5530
GB5533
GB7781
GB10897
GB10898
3 Terminologywww.bzxz.net
3.1 Rated operating conditions
Basic technical requirements for rotating electrical machines
Basic standards for low-voltage electrical appliances
Rapeseed oil
Hygiene standards for edible vegetable oils
General principles for safety and sanitation design of production equipment
Testing of vegetable oils and fats for moisture and volatiles Standard method for testing vegetable oils and fats
Method for determination of impurities
Testing vegetable oils and fats
Method for determination of acid value
Method for determination of soap content in testing vegetable oils and fats
Method for compiling separator models
Technical conditions for disc separators
Test methods for phosphorus separators
When the separator is at rated speed, using crude rapeseed oil with an impurity content not exceeding 0.20% or secondary rapeseed oil specified in GB1536 as raw material for filtration, and the operating conditions when the specified separation quality requirements are met, 3.2 Rated processing capacity
The amount of raw oil passing through the separator per unit time under rated conditions. Type and basic parameters
4.1 Type
Separators are divided into the following three types according to their slag discharge methods: a.
Manual slag discharge type, represented by RZ, see Figure 1; water slag discharge type, represented by SZ, see Figure 2; ring-clear slag discharge type, represented by HZ, see Figure 3. Approved by the Ministry of Machinery Industry on July 18, 1994
Implemented on July 1, 1995
Figure 1 Manual slag discharge disc separator
JB/T7231--94
Figure 2 Water slag discharge phosphorus separator
Figure 3 Ring-clear disc separator
4.2 Model
JB/T723194
The separator model representation method shall comply with the provisions of GB7781. 4.3 Basic parameters
The basic parameters of manual slag discharge type and water flushing slag discharge type separators shall comply with the provisions of Table 1. Table 1 Basic parameters of manual slag discharge type and water flushing slag discharge type separators
Type and specification
Nominal diameter D
7000~8000
6300~7500
6000~7100
5000~5600
4200~4800
Equivalent sedimentation area S
56~106
The basic parameters of ring slag discharge type separators shall comply with the provisions of Table 2. Table 2 Basic parameters of ring valve slag discharge separator
Type and specifications
DHZ-315
DHZ355
DHZ-400
DHZ-500
5 Technical requirements
5.1 General requirements
Nominal diameter D.
Equivalent anti-drop area
6000~7000
5800~6800
5600~6600
4500~5000
Motor power N
Motor power N
Rated processing capacity Q
Rated processing capacity Q
The design and manufacture of the separator shall comply with the requirements of this standard and be manufactured according to the drawings and technical documents approved by the prescribed procedures. 5.2 Environmental conditions
The environment to which the separator is adapted shall comply with the provisions of Article 3.2 of GB10897. 5.3 Performance in use
5.3.1 The general requirements for the performance of the separator in use shall comply with the provisions of Article 3.3 of GB10897. 5.3.2 The motor and electrical control box of the separator shall comply with the relevant provisions of GB755 and GB1497 under the operating conditions. The process performance of the separator shall meet the requirements of vegetable oil refining. According to the vegetable oil refining process flow (three-stage or two-stage separation) shown in Appendix A (supplement), under rated conditions, with any raw material oil specified in the rated conditions, the process indicators after separation shall be in accordance with the following provisions.
Rapeseed oil with impurities not exceeding 0.20%: 5.3.3.1
Water content of clear oil ≤0.5%;
Impurities of clear oil ≤0.1%:
Acid value of clear oil ≤1:
Soap content of clear oil ≤150ppm;
Oil content of soap stock (dry basis) ≤35%.
Secondary rapeseed oil:
Water content of clear oil ≤0.5%;
Impurities of clear oil ≤0.1%;
Acid value of clear oil ≤0.3;
Soap content of clear oil ≤70Ppm;
Oil content of soap stock (dry basis) ≤35%.
The rated processing capacity of the separator shall comply with the provisions of Table 1 and Table 2. 5.3.4
5.4 Safety, health and environmental protection requirements
5.4.1 The safety, health and environmental protection requirements of the separator shall comply with the provisions of Article 3.4 of GB5083 and GB10897 (except Article 3.4.16).
5.4.2 Under rated working conditions, the noise sound power level of the separator shall not exceed 105dB(A). 5.5 Appearance quality
The appearance quality requirements of the separator shall comply with the provisions of Article 3.5 of GB10897. 5.6 Material requirements
5.6.1 The materials used in the separator shall comply with the provisions of Article 3.6 of GB10897. 5.6.2 The parts and components of the separator that come into contact with the separated materials shall not be made of copper. 5.6.3 The parts and components of the separator that come into contact with the separated materials shall meet the requirements of GB2716. Rubber seals must be made of oil-resistant rubber and shall not affect the sensory and hygienic indicators of vegetable oil. 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 Mechanical performance test of the separator
The mechanical performance test method of the separator shall comply with the provisions of Article 4.3 of GB10897 and Chapter 7 of GB10898. 6.2 Separation performance test of the separator
6.2.1 The separation performance test of the separator shall be carried out in accordance with Appendix A and under rated working conditions. The test shall be carried out with any raw material specified in the rated working conditions, and the continuous assessment time shall not be less than 72 hours. 6.2.2 The test method of the rated processing capacity shall comply with the provisions of Article 7.7.2 of GB10898. 6.2.3 Separation effect test
After the crude oil is separated by three or two stages, the sample is taken at the mark in Appendix A, and the sample is taken every 4 hours. The index test method shall comply with the following provisions:
The test method for water content of clear oil shall comply with the provisions of GB5528; b.
The test method for impurity content of clear oil shall comply with the provisions of GB5529: The test method for acid value of clear oil shall comply with the provisions of GB5530: The test method for content of clear oil shall comply with the provisions of GB5533: JB/7231-94
The test method for oil content (in base) of soap stock shall comply with the provisions of Appendix B (supplement). 7 Inspection rules
7.1 The inspection rules for separators shall comply with the provisions of Chapter 4 of GB10897. 7.2 The impurity content shall not exceed 0.20% rapeseed oil is used as raw material, and the test method after three-stage separation is the intermediate method. 8 Quality assurance period
Under the condition that the user strictly follows the requirements of the instruction manual to properly keep and use the separator, within 18 months from the date of manufacture and delivery (no more than one year in actual use), if the separator cannot operate normally due to manufacturing quality problems, the manufacturer must repair or replace parts or products (except wearing parts) for the user free of charge
9 Marking, packaging, transportation and storage
The marking, packaging, transportation and storage of the separator shall comply with the provisions of Chapter 5 of GB10897, Magnetic Wave
Raw material sleeve
JB/T7231--94 ||t t||Appendix A
Schematic diagram of vegetable oil refining process
(Supplement)
Starting point
Heavy phase outlet
(or hot water)
[Heavy phase outlet
Heavy phase outlet
1-amount pump; 2-oil heater, 3-colloid conditioner; 4-neutralizer: 5-separator; 6-refining mixer; 7-separator; 8-water washing mixer; 9-separator fine sample
Light phase outlet
BI instrument
B1.1250mL glass measuring cylinder.
B1.2500mL separation funnel.
JB/T 723194
Appendix B
Test method for oil content of soap stock (dry basis)
(Supplement)
B1.3400mL beaker and 500mL volumetric flask. B2 Reagents
B2.114% (weight basis) KOH aqueous solution.
B2.250% (volume) methanol solution, 10L 95% ethanol and 9L distilled water mixture. B2.310% (volume) methanol solution, 2L 95% ethanol and 17L distilled water mixture. B2.4 Petroleum aldehyde (analytical grade).
B3 Test procedure
B3.1 Accurately weigh the sample.
B3.2 Place 8-10g of sample in a measuring cylinder, add 125mL50% ethanol and 50mL petroleum aldehyde, and mix well until completely dissolved. B3.3 Cool to 20-25°C, add 10mLKOH, and stir to mix completely (avoid shaking). B3.4 Add 25mL50% methanol, stir until mixed, and let it settle until the two phases are completely separated. The contact between the petroleum ether layer and the alcohol-alkali layer should not exceed 30min.
B3.5 Use a pipette to suck the petroleum ether layer into a 500mL separation funnel, and then use 50mL of right petroleum ether to wash and extract the residual liquid at least four times each time, and pour the extracted wave into the separation funnel. B3.6 In the separation funnel, wash the petroleum ether solution with 25mL10% ethanol each time and shake it evenly until the washing liquid is neutral to the phenol reagent. Generally, wash it three times, filter it with filter paper, and wash the fat on the filter paper with petroleum ether. B3.7 Pour the filtered petroleum ether extract into a weighed beaker. The beaker must be dried and cooled before use. Evaporate the petroleum ether, dry at 105°C for 30 minutes, and weigh after cooling to room temperature in a desiccator. Repeat the drying and weighing several times until the weight remains unchanged. B3.8 Calculate
Additional instructions:
Null oil weight × 100
Neutral oil percentage two
Total weight of sample
This standard was proposed by the National Technical Committee for Separation Machinery Standardization. This standard is under the jurisdiction of the Hefei General Machinery Research Institute of the Ministry of Machinery Industry. This standard was drafted by Yixing Grain Machinery Factory and Wuxi Grain Science Research and Design Institute of the Ministry of Commerce. The main drafters of this standard are Pan Anshun and Yao Zhuan. 7
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