JB/T 3275—2001 This standard is a revision of JB/T 3275—1983 "Plastic fan-shaped filter plates for disc filters". Technical requirements such as bending strength requirements were added during the revision. This standard specifies the product classification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of fan-shaped filter plates for disc vacuum filters. This standard applies to plastic fan-shaped filter plates for disc vacuum filters. This standard was first issued in June 1983, and this is the first revision. JB/T 3275-2001 Plastic fan-shaped filter plates for disc vacuum filters JB/T3275-2001 Standard download decompression password: www.bzxz.net

ICS73.120
Machinery Industry Standard of the People's Republic of China
JB/T3275-—2001
Sector plastic plate for disc-type filter Issued on 2001-05-23
China Machinery Industry Federation
Implemented on 2001-10-01
JB/T3275—2001
This standard is a revision of JB/T32751983 "Plastic sector filter plate for disc type filter". Compared with JB/T3275—1983, the main technical content of this standard has been changed as follows: 1. This filter plate is used for disc vacuum filter, so the standard name has been changed to "Plastic sector filter plate for disc vacuum filter". 2. Added technical requirements for plastic sector filter plates for GPY series disc vacuum filters. 3. The bending strength requirements for plastic sector filter plates have been added. This standard replaces JB/T32751983 from the date of implementation. This standard is proposed and managed by the National Technical Committee for Standardization of Mining Machinery. The responsible drafting unit of this standard: CITIC Heavy Machinery Company. The main drafters of this standard: Liu Qin, Bi Shujie, Jiang Jianping, Chen Xinfang, Huang Jialin. This standard was first issued in June 1983, and this is the first revision. 1
Machinery Industry Standard of the People's Republic of China
Plastic sector filter plate for disc vacuum filter Sectorplasticplatefordise-typefiltaJB/T3275—2001
Replaces JBT3275—1983
This standard specifies the product classification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of plastic sector filter plates for disc vacuum filters.
This standard applies to plastic sector filter plates for disc vacuum filters (hereinafter referred to as filter plates). 2
Cited Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB191—1990
GB/T10401992
GB/T1043—1993
GB/T2411—1980
GB/T63881986
3 Product classification
3.1 Model
Packaging, storage and transportation graphic signs
Plastic tensile test method
Plastic simply supported beam impact test method
Plastic Shore hardness test method
Transport packaging, receiving and shipping signs
The product model is indicated as follows:
Filter plate angle, (°)
Disc diameter, m
Characteristic code: X for star-point type and G for grid type. Plastic material
3.2 Type
The filter plate is a combination type.
3.3 Basic parameters
The basic parameters of the filter plate shall comply with the requirements of Table 1. Approved by China Machinery Industry Federation on May 23, 2001 and implemented on October 1, 2001
LSG-1.8/36
LSX-2.7/36
LSG-2.7/36
LSX-3.8/36
LSG-3.8/30
LSG-3.8/18
LSG-3.8/36
Technical requirements
Filter disc diameterwwW.bzxz.Net
JB/T3275—2001
Filter disc sector angle (°)
Filter plate thickness mm
Scope of application
GP-27/6, GP-18/4 disc vacuum filter GPY-120GPY-100GPY-80||tt ||GPY-60, GP-58/6, GP-78/8, GP-97/10, GP-116/12 Disc Vacuum Filter
GP-58/6, GP-788,
GP-97/10
GP-16/12A Disc Vacuum Filter
GPY Series Disc Vacuum Filter
GP-200 Disc Vacuum Filter
GP-200 Disc Vacuum Filter
GP-120 Disc Vacuum Filter
Filter plates shall comply with the requirements of this standard and be manufactured in accordance with the drawings and technical documents approved by the prescribed procedures. 4.1
General technical requirements not specified in this standard shall comply with the provisions of relevant national standards and industry standards. 4.3 Filter plates shall be injection molded. Their acid and alkali resistance shall comply with the provisions of Table 2. The main raw material of the filter plate is modified polypropylene, and its mechanical properties should meet the requirements of Table 3.
Name of acid and alkali solution
40%NaOH solution
40%HNO solution
30%H2SO solution
35%HCL solution
Tensile strength
29.4-38.2
Flexural strength
41.1-54.8
Impact strength
Elongation at break
200~400
Corrosion degree at 60℃+±2℃ g/m2
Low temperature brittle point
≤-10
Heat deformation temperature
56-67（18MPa)
Shaw Hp
The screws or rivets used for combined filter plates shall not be higher than the working surface of the filter plates, and the edge misalignment shall not be greater than 2mm. 4.4
4.5 After the filter plates are assembled, their surfaces should be flat and smooth, without warping or corrugation. The flatness requirements are: the filter plate diameter should be no more than 3mm for a 1.8m filter plate, no more than 4mm for a 2.7m filter plate, and no more than 5mm for a 3.8m filter plate.
4.6 The filter plate angle error should be within the range of -5~0°, the filter plate length tolerance should be within the range of ±5mm, the working surface ribs and edge thickness should be uniform, and the error should be within the range of ±1mm.
4.7 The processing quality of the filter plate shall comply with the following provisions: JB/T3275—2001
a) No cracks or poor plasticization are allowed on the entire filter plate surface; b) There shall be no more than 3 bubbles with a diameter greater than 5mm; b) There shall be no more than 10 foreign impurities affecting the mechanical properties. 4.8 The cylindrical sleeve matching the filter plate is made of engineering plastics, and its tensile strength shall not be less than 70MPa. 4.9
The scope of supply of a set of filter plates shall comply with the provisions of Table 4. Table 4
Plastic fan-shaped plate
1 Cup-shaped sleeve is applicable to LSG-2.7/36 and LSX-3.8/36 cylindrical sleeves (cup-shaped sleeves) in Table 1
2 Cylindrical sleeves are applicable to LSX-2.7/36, LSG-1.8/36, LSG-3.8/30, LSG-3.8/18 and LSG-3.8/365Test methods and inspection rules
5.1 The filter plate must be inspected and qualified by the quality inspection department of the manufacturer before it can be shipped out of the factory. When it leaves the factory, it should be accompanied by documents proving that the product quality is qualified. 5.2 When the filter plates are shipped in batches, 5% of them should be randomly inspected, and the inspection items should meet the requirements of 4.5, 4.6, 4.7 and 4.8. 5.3 Each mold is only inspected once, and it must be re-calibrated when the mold is updated or the filter plate material is replaced. 5.4 Use a Shore hardness tester to test the Shore hardness of the filter plate according to GB/T2411. 5.5 The mechanical properties of the filter plate raw materials and the tensile strength of engineering plastics should be tested according to the requirements of GB/T1040 and GB/T1043. 6 Marking, packaging, transportation and storage
6.1 The filter plate should have the manufacturer's name, factory logo, trademark and production date on the small end. The form of the mark is not limited, but it should be able to be preserved for a long time without affecting the use.
6.2 The filter plate should be fully enclosed. The packaging box should be able to prevent compression and deformation, and its markings should comply with the provisions of GB191 and GB/T6388. 6.3 The filter plate packaging box should be accompanied by a product certificate and a complete set of delivery details. 6.4 The filter plate should be stored in a dry and ventilated room, the temperature should be within the range of 0~60℃, and 3m away from the heat source. It is strictly forbidden to store it in the open air. 3
Mechanical Industry Standard
Plastic fan-shaped filter plate for disc vacuum filter JB/T3275-2001
Published and issued by the Mechanical Science Research Institute
Printed by the Mechanical Science Research Institute
(No. 2 Shouti South Road, Beijing, Postal Code 100044)*
Book size 880×12301/16 Printing sheet 1/2 Number of words 8000 First edition in August 2001, first printing in August 2001 Price 1000 yuan
Print number 1-500
No. 2001-062
Mechanical Industry Standard Service Network: http/AvwwJB.ac.cn00
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