Replaced by JB/T 8103.5-2005 JB/T 6419-1992 Disc Starch Separator JB/T6419-1992 Standard download decompression password: www.bzxz.net

Machinery Industry Standard of the People's Republic of China
JB/T 6419-1992bzxZ.net
Disc Starch Separator
Published on July 20, 1992
Implementation of the Ministry of Machinery and Electronics Industry of the People's Republic of China on January 1, 1993
Mechanical Industry Standard of the People's Republic of China
Disc Starch Separator
1 Subject Content and Scope of Application
JB/T 6419-1992
This standard specifies the type and basic parameters, technical requirements and performance test methods of disc-type external nozzle slag discharge type starch separator. This standard applies to disc-type starch separators (hereinafter referred to as separators) used to separate protein from starch slurry. 2
Cited standards
GB1497
GB7781
GB10897
GB10898
3Terms
Basic technical requirements for rotating electrical machines
Basic standards for low-voltage electrical appliances
Method for compiling separator models
Technical conditions for disc separators
Performance test methods for disc separators
3.1 Rated processing capacity
The amount of corn starch slurry that passes through the separator under rated working conditions per unit time. 3.2 Rated working conditions
The working state when the slurry pressure is 0.1~0.15MPa, the Baume degree is 5~7°Be, the temperature is 20~40℃, the protein content is 6%~8%, the flow rate is within the rated processing capacity range, and the drum reaches the rated speed. 3.3 Baume degrees
A scale for measuring the specific gravity of starch slurry using a Baume hydrometer, i.e., a method of expressing slurry concentration. Symbol: "Be. 4 Type and basic parameters
4.1 Type and structure
The type and structure of the separator shall comply with the provisions of GB7781 and Figure 1. 4.2 Basic parameters
The basic parameters of the separator shall comply with the provisions of Table 1. 4.3 Product model representation method
4.3.1 The separator model representation method shall comply with the provisions of GB7781. 4.3.2 Marking example
The nominal inner diameter of the drum is 450mm, and the equivalent sedimentation area is 10×10°cm2 , used for starch separation process, inlet dispersion, liquid phase outlet centripetal pump, gear-driven external nozzle slag discharge type separator marked as: DPF450/10-21-30 starch separator
Approved by the Ministry of Machinery and Electronics Industry on 1992-07-20 and implemented on 1993-01-01
DPF355
DPF450
DPF500
DPF560
5 Technical requirements
Nominal diameter
JB/T 64191992
Figure 1 Disc starch separator
4000~4500
3500~4000
Equivalent sedimentation area
×10°cm2
Motor power
22，30
30，37
45，55
Rated processing capacity
15 ~25
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 ambient temperature of the separator shall comply with Article 3.2.1 of GB10897. 5.3 The supporting motor and electrical control box of the separator shall meet the requirements of the working environment and operating conditions and comply with the relevant provisions of GB755 and GB1497.
5.4 The general requirements for the performance of the separator shall comply with Article 3.3 of GB10897. 2
JB/T6419-1992
5.5 The general requirements for the safety, sanitation and environmental protection of the separator shall comply with Article 3.4 of GB10897 (except Article 3.4.16). 5.6 The noise sound power level of the separator under rated conditions shall not exceed 105dB (A). 5.7 The appearance quality requirements of the separator shall comply with Article 3.5 of GB10897 5.8 The materials used in the separator shall comply with Article 3.6 of GB10897. 5.9 The manufacturing process requirements of the separator shall comply with Article 3.7 of GB10897. 5.10 The number of discs actually installed in the separator shall not be less than the design value. 5.11 Under rated working conditions, after the primary separation of the starch slurry by the separator according to the process diagram shown in Figure 2, the protein content is reduced from 6%~8% to 2%~2.5%, and the starch content in the yellow slurry is not more than 25%. 5~7°Be
Milky milk 0.1~0.15MPa
20~40℃, protein 6%~8%
Starch ≤25%
Test methods and inspection rules
Starch milk
Protein 2%~2.5%
Figure 4 Schematic diagram of primary separation process
6.1 The factory inspection and type inspection of the separator shall comply with the provisions of Chapter 4 of GB10897. 6.2 The mechanical property test method of the separator shall comply with the provisions of GB10898. 6.3 Performance test of protein separation
6.3.1 The performance test of protein separation of the separator shall be carried out on-site at the corn starch factory. 6.3.2 When the separator is working, the inlet pressure, flow rate, Baume degree and the pressure and flow rate of the flushing liquid shall be measured every hour, and the protein content of the bottom flow shall be randomly sampled and checked, which shall meet the requirements. 6.3.3 The installation and commissioning of the separator shall comply with the provisions of Figure 2, and the effect of primary separation under rated working conditions shall comply with the requirements of Article 5.11. 7 Marking, packaging, transportation, storage
The marking, packaging, transportation and storage of the separator shall comply with the provisions of Chapter 5 of GB10897. 8 Warranty period
If the user complies with the maintenance and use rules, within 12 months from the date of shipment from the manufacturer, if the separator is damaged or cannot work normally due to poor manufacturing, the manufacturer shall be responsible for repair or replacement free of charge (excluding wearing parts). Additional remarks:
JB/T6419-1992
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 and Electronics Industry. This standard was drafted by Anqing Marine Diesel Engine Factory. The main drafters of this standard are Pei Taisheng, Ling Shizheng and Lei Xiao.
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