JB/T 8947-1999 JB/T 8947-1999 Rubber filter belt for fixed chamber belt vacuum filter JB/T8947-1999 Standard download decompression password: www.bzxz.net

ICS21.010
Machinery Industry Standard of the People's Republic of China
JB/T8947—1999
Rubber Belt for Rubber Belt Filter for Fixed Chamber Belt Vacuum Filter
1999-07-12 Issued
National Machinery Industry Bureau
2000-01-01 Implementation
JB/T8947—1999
This standard is proposed and managed by the National Technical Committee for Separation Machinery Standardization. The responsible drafting units of this standard are Kaifeng Ganda Rubber (Dongtuan) Co., Ltd. and Beijing Nonferrous Metallurgical Design and Research Institute. The main drafters of this standard are Li Songfeng and Liao Jiancha. ■Scope
Machinery Industry Standard of the People's Republic of China
Rubber Filter Belt for Fixed Chamber Belt Vacuum Filter
JH/T 8947-1999
This standard defines the type and parameters, technical requirements, aging method, inspection rules and marking, packaging, transportation and storage, quality assurance, etc. of the chamber filter belt (hereinafter referred to as filter belt) for fixed chamber belt vacuum filter. This standard is applicable to the jointless annular filter belt for fixed chamber vacuum filter. References
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 supervised: All parties using this standard should explore the possibility of using the new version of the following standards. GB/T528—199B
G8/T531—1999
Determination of tensile strength and deformation properties of acylated rubber. Test method for indentation hardness of rubber with miniature hardness meter. GB/T1—1982 Determination of aging resistance of acrylated rubber (using abrasion machine) GB3512—1963 Test method for aging of acrylated rubber GB36—1994 Determination of tensile strength and elongation of fabric core conveyor belts. Conveyor belt dimensions
GE/T4490-1994
GB/T5752—1992
GB/T 6757—1986
G 6759—1986
3 Definitions
Conveyor belts
Conveyor belts Storage and handling
Conveyor belts Test method for the adhesion strength of the layers of the conveyor belt This standard applies the following definitions (with the following explanations in conjunction with the figure) 3.1 Effective width
The length of the filter belt used to discharge the filter ditch. 3.2 Drain holes
The holes in the filter belt used to discharge the filter through the drainage ditch. 3.3 Nominal width
The effective width plus the width of the two side parts, that is, the total width 3.4 Straightness
Level the filter belt on a flat surface and select any two measuring points on any side of the belt. The distance between the two points on both sides shall not be less than half of the total length, and the belt shall be collected at the half-integral position. The distance between the two selected points is the same as the distance between the two selected points to the mass line. Approved by the State Bureau of Machinery Industry on July 12, 1999, and implemented on January 1, 2000
4 Types and basic parameters
4. 1 Type
JB/8947-1999
The sample size is determined by the effect of the filter belt.
International Gram D
Figure 1 Schematic diagram of filter belt structure
The filter belt should be made of multiple layers of cloth bonded in the same structural manner, with the skeleton layer covered with a rubber cover layer, which is annular, and the upper surface has regular transverse grooves, and the sidewalls may be molded and bonded or not according to the needs. 4. 2 Basic parameters
The basic technical parameters of the filter belt should comply with the table! Regulations, table ·
pass inductance
specification width cavity
model capsule indication method
1BT8947199
Tworking contact medium, P, S, W
effective width, mm
filtration area,
fixed chamber belt type point-to-point air filter with lemon cavity method belt Note: working according to the medium, P represents communication type, 3rd generation agricultural acid-resistant auxiliary thickness; W represents high temperature resistance, marking example:|| tt||The filter belt with the non-return area is 12m2, the effective width is 1350mm, and the medium characteristics of the working medium are acid and alkali resistant. The mark is:
DUJ121135-sJB/T8947-1999
6 Technical requirements
The filter belt shall comply with the provisions of this standard: and shall be manufactured according to the drawings and technical documents approved by the specified hydroxyl. 6.1 Appearance quality
The appearance quality shall meet the following requirements.
&1.1 If there are obvious scars on both sides of the roller hole and the vacuum case connection part and other parts with a depth of less than 2mlm, they shall be repaired and improved at the same time.
6.1.1 The total area of ​​the cover rubber or cloth shall not exceed 0.12% of the total area, and shall be repaired and improved at the same time. 6.1.3 The edge of the sponge and the empty edge shall not exceed 5% of the inner circumference of the shape, otherwise it shall be connected with a light tape. 6.2 Dimensional deviation
The dimension deviation of the running shall comply with the provisions of Table 2.
Public degree H
>800-144A0
<1400-2200
>2200-3300
<20000
20000-4DDDC
Internal length of two strokes
Hundred moths
Physical and mechanical properties
JB/T8947-[999
Table 2 (end)
20000-:40000
The physical and mechanical properties shall comply with the provisions of Table 3. 6.3.1
Conductivity
Tensile strength
Elongation at break
Abrasion loss cm1.61km
Degree (partial)
Method strength (formula)
Tensile strength and breaking
Change in elongation after aging (×72h)bZxz.net
Use duration
60 ± 5
50 ± 5
The tensile performance of the skeleton layer shall comply with the provisions of Table 4
Tensile strength at break
Technical length%
6.3.3 The adhesion between the skeleton layers shall comply with the provisions of Table 5. Table 5
Simulated or sample average value
All longitudinal test samples are taken
About test method
7.1 Dimensions of filter belt shall be measured according to GB/T4490. Elongation test shall be carried out according to GB.T52R
Buchen return
Kezhi dirty hardness
60 ± 5
Separation resistance to
60 ± s
Yapu rubber layer
7.3 Abrasion performance test GB.T1689.JErT8947—1999
7.4 Tensile performance test over the full thickness of the belt shall be carried out according to GB/T3690 7.5 Bonding strength test between skeleton layers shall be carried out according to GB/T6759—[98] method A. 7.6 The aging performance test shall be carried out in accordance with GB[3512, and the hardness test shall be carried out in accordance with G1. 1 When the product is shipped, the entire contents of 6.[ and 6.2 shall be tested: the requirements in 6.3 shall be tested once for each batch. 8.1 In the physical performance test, if the expected performance does not meet the standards, simulated samples shall be made again in accordance with the provisions of 6.3, and two new samples shall be taken to retest the unqualified items. If there is still one test item that does not meet the standards in the re-sample, the batch of products is unqualified. Marking, packaging, transportation and other storage and handling of products shall be carried out in accordance with GD/T5752. 2 The packaging and handling of the belt shall be carried out in accordance with GB/T6757. The temperature in the storage warehouse should be kept between -15 and :40, and the relative humidity should be kept between 50% and 80%. Avoid storing the device for 24 hours. 10. Quality Assurance
10.1 In compliance with 9.2, it is guaranteed that its physical properties still meet the requirements of this standard within a working period of no more than 12 months from the date of shipment.
10.2 The use shall be subject to the agreement between the supply and demand parties.
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