JB/T 3276-1999 This standard is a revision of JB 3276-83 "Folded Belt Filter". During the revision, only editorial changes were made according to relevant regulations, and the technical content has not changed. This standard specifies the product classification, technical requirements, test methods, inspection rules, signs, labels, instruction manuals, packaging, transportation and storage of folded belt filters. This standard applies to folded belt filters. The machine is mainly suitable for the dehydration of non-ferrous metal concentrates, non-metallic concentrates, flotation tailings (middle) coal and sludge, and can also be used for solid-liquid separation of suspensions that are not easy to precipitate. JB/T 3276-1999 Folded Belt Filter JB/T3276-1999 Standard download decompression password: www.bzxz.net

ICS73.120
Machinery Industry Standard of the People's Republic of China
JB/T3276—1999
Belt-folded passing overroller discharge filters1999-06-28 Issued
National Bureau of Machinery Industry
2000-01-01 Implementation
JB/T3276—1999
This standard is a revision of JB327683 "Belt-folded passing overroller discharge filters". During the revision, the original standard was edited, and the main technical content remained unchanged
This standard replaces JB327683 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: Shenyang Mineral Processing Machinery Research Institute. The main drafters of this standard: Meng Shifang, Wang Yanhua, Li Jun, Liu Yuheng, Huang Jialin. 1 Scope
Machinery Industry Standard of the People's Republic of China
Belt-folded passing over roller discharge filtars
Belt-folded passing over roller discharge filtarsJB/T3276—1999
Replaces JB327683bzxz.net
This standard specifies the product classification, technical requirements, test methods, inspection rules, signs, labels, operating instructions, packaging, transportation and storage of belt-folded passing over roller discharge filtars.
This standard applies to belt-folded passing over roller discharge filtars. The machine is mainly used for dewatering of non-ferrous metal concentrates, non-metallic concentrates, flotation tailings (middle) coal and sludge, and can also be used for solid-liquid separation of suspensions that are not easy to precipitate. 2 Referenced Standards
The provisions contained in the following standards constitute the provisions of this standard by being referenced 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/T6388—1986
GB/T9969.1—1988
GB/T133061991
JB/T16041998
3 Product classification
3.1 Model
Packaging storage and transportation pictorial signs
Transport packaging receiving and shipping signs
Industrial product manual
Mining machinery product model compilation method
3.1.1 The cylinder and the agitator are driven separately. 3.1.2 The distribution head is a flat contact type.
3.1.3 The agitator is a swing type.
3.2 Model
The model should comply with the provisions of JB/T1604. Model representation method: G
3.3 Marking example
Filter area, m2
Filter
A folded belt filter with a filter area of ​​30m2 is marked as: GD-30 folded belt filter
3.4 ​​The basic parameters and dimensions of the folded belt filter shall comply with the provisions of Table 1. Approved by the State Machinery Industry Bureau on June 28, 1999 and implemented on January 1, 2000
Parameter name
Filter area
Simplified size
Cylinder speed r/min
Number of stirring times per minute
Motor power
Agitator
JB/T3276-—1999
Note: One stirring is when the rake teeth move from one dead point to the other dead point. Technical requirements
The pleated belt filter shall comply with the provisions of this standard and be manufactured in accordance with the drawings and technical documents approved by the prescribed procedures. 4.2
Working conditions
The particle size of solid particles in the slurry shall not exceed 0.5mm; a)
The slurry shall be non-corrosive;
The slurry temperature shall not exceed 70℃;
The optimal feed concentration shall not be less than 60%, the solid content of flotation tail (middle) coal shall not be less than 0.5kg/L, and the solid content of sludge shall not be less than 2%d
4.3 The structure of the pleated belt filter shall meet the following requirements: a)
The distribution head, filter chamber and connecting pipelines shall be sealed and no air leakage is allowed: there shall be a mechanism to prevent the filter cloth from running off and skirting and a filter cloth cleaning device: all roller surfaces shall be lined with an anti-corrosion layer. During normal operation, the deflection of each roller shall not be greater than 1/1000 of the total length; there shall be an auxiliary mechanism for unloading the filter cake.
4.4 Distribution head, distribution plate, gas plate, throat a) Before processing, heat treatment to eliminate internal stress should be carried out; b) Distribution plate and gas plate should be made of nylon, gray iron or cast brass, and the contact should be tight, and the gap should not be greater than 0.05mm; c) No cross-flow and air leakage are allowed in the throat holes
4.5 Simplified
The radial runout tolerance of the outer circle of the simplified body shall be in accordance with the provisions of Table 2: a)
Radial runout mm
GD-3, GD-5
GD-8~GD-20
The arrangement of the filter chamber and the rope pressure groove should be uniform, and the spacing error should not exceed 2mm; b)
c) The filter chambers, the ends of the filter chambers and the vacuum pipes should be tight, and no cross-flow and air leakage are allowed. GD-30~GD-50
The filter plate should be made of polypropylene plastic material. After the filter plates are installed, no interference, bulging, falling off, or other undesirable phenomena are allowed. 4.6
The weld of the slurry tank should be tight and no leakage is allowed. 4.7
The lubricating oil circuit should be unobstructed to ensure lubrication.
JB/T3276-—1999
4.9All transmission parts should operate flexibly. The noise should not exceed 88dB (A). During the idling test, the temperature rise of the rolling bearing should not exceed 30℃, and the temperature rise of the sliding bearing should not exceed 25℃. 4.10All continuous welds should be welded through and firmly, and no defects such as burn-through, cracks, and slag inclusions are allowed. 4.11. The exposed non-processed metal surface should be painted evenly without defects such as shedding, flow marks, bubbles and cracks. 4.12 Scope of supply of folding belt filter: a) Complete set of mechanical parts (excluding auxiliary equipment and filter cloth, etc.): b) Motor:
c) Cylinder speed If grouped by replacement of transmission parts, the drawing should specify a group of speeds as normal supply. If the user chooses other speeds according to needs, it should be noted according to the provisions of the drawing. 4.13 The consumption of vacuum pump, automatic drainage device and filter cloth washing water should comply with the provisions of Table 3. Table 3
Vacuum pump suction capacity
(vacuum degree 60-80kPa)
m/(mn·m)
Automatic drainage device
Volume m
Diameter mm
Consumption of cleaning water
(gauge pressure>147.1kPa)
1The small value of the vacuum pump suction capacity is used to filter the material that forms a dense and crack-free filter cake layer: while the larger value is used to form a filter cake layer with fine pores or large cracks.
2When used for sludge dewatering, the volume of the automatic drainage device should be increased by 0.5~1.0 times. 5Test method
At 19%6kPa gauge pressure, perform a water pressure test on each connected channel required by 4.3a) and keep it for 5 minutes. 5.2For the requirements of 4.6b), use a feeler gauge to check. 5.3 Under a gauge pressure of 19%6kPa, perform a water pressure test on each channel of the processed throat and maintain it for 10 minutes. 5.4
For the requirements of 4.5c) and 4.7, the oil penetration method should be used for inspection before painting. 5.5
For the requirements of 49, the test should be carried out on the test bench, and the folded belt filter should be run at maximum speed for 4 hours. The noise is detected by a sound level meter, and the temperature rise is detected by a semiconductor point thermometer. 6
Inspection rules
Inspection classification
The folded belt filter is divided into factory inspection and type inspection. 6.2 Factory inspection
JB/T3276—1999
6.2.1 Each folded belt filter must be inspected and qualified by the quality inspection department of the manufacturer before it can be shipped. Documents proving the quality of the product should be attached when leaving the factory.
6.2.2 The factory inspection shall comply with the provisions of 4.4b), 4.4c), 4.5c) and 4.7~4.11. 6.3 Type inspection
6.3.1 The folding belt filter shall be subjected to type inspection in any of the following cases: When a new product or old product is transferred to the factory for production and identification: a)
b) After normal production, when there are major changes in product structure, materials, and processes: When the product is resumed after a long period of suspension: d)
When the results of the factory inspection are greatly different from the last inspection: When the national quality inspection agency proposes a type inspection requirement. e)
6.3.2 The type inspection items shall include all requirements in this standard. Type inspection shall be conducted on one unit selected from the products that have passed the factory inspection. If the inspection fails, double sampling shall be conducted. 6.3.3
7 Marking, labeling and instruction manual
7.1 Each folding belt filter shall be equipped with a product label in an appropriate and obvious position. Its type and size shall comply with the provisions of GB/T13306 and shall indicate the following contents:
Manufacturer name and trademark:
b) Product name and model:
c) Main technical parameters:
Filtering area, m:
Simplified speed, Imin;
Motor power, kW;
Main engine weight, t:
d) Factory number;
e) Date of manufacture.
7.2 A product instruction manual shall be prepared for the folding belt filter, and its contents shall comply with the provisions of GB/T9969.17.3 The packaging mark of the folding belt filter shall include the shipping packaging receipt and delivery mark, the packaging storage and transportation pictorial mark, and shall comply with the provisions of GB/T6388 and GB 191.
8 Packaging, transportation and storage
8.1 The packaging of the folding belt filter can be wrapped, naked or closed. 8.2 The packaging of the folding belt filter should meet the requirements of land and water transportation. Except for plastic parts, rubber parts, rubber-lined parts, etc., which are closed, the rest can be wrapped or transported naked.
8.3 There should be obvious text markings on the closed box wall, and it should comply with the provisions of 7.3, including a) the name of the receiving station and the receiving unit;
b) the name of the shipping station and the shipping unit;
c) the contract number and the product name and model:
d) gross weight, net weight, box number and overall dimensions; 4
e) center of gravity, lifting line, storage and transportation diagram mark JB/T3276-1999
8.4 The packaging of the folding belt filter should be accompanied by the following documents: a) product certificate or quality certificate;
b) product manual;
packing list;
d) product general drawing, installation drawing
When wrapping or bare packaging, a sign should be tied in an obvious position, and it should comply with the provisions of 8.3. The exposed processed surface of metal parts should be coated with anti-rust grease and wrapped with polyvinyl chloride film. The documents accompanying the machine should be put into a plastic bag and placed in a box with the words "Document Here" on the outer wall. 8.8 Parts should be firmly fixed in the box to prevent deformation. Wooden boxes should be ventilated and rainproof. Rubber parts and rubber-lined parts are not allowed to contact oil, acid, and alkali substances. It is not suitable for transportation in severe cold weather to ensure that they will not be frozen and cracked. The wrapped and bare parts of the 9-fold belt filter should be properly kept in the warehouse or under the shed. Rubber parts and rubber-lined parts should be placed in a dark room with a temperature of 0~258.9
℃ and a relative air humidity of 50%-80%. 5
Mechanical Industry Standard
Folded Belt Filter
JB/T3276-1999
Published by the Machinery Standardization Research Institute of the Ministry of Machinery Industry Printed by the Machinery Standardization Research Institute of the Ministry of Machinery Industry (No. 2 Shouti South Road, Beijing: Postal Code 100044)*
Format 880×1230
Sheet 1/2
Word Count 12000
First Edition in August 1999
First Printing in August 1999
Print Quantity 1-500
Price 500 Yuan
99-081
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