JB/T 2443-1999 This standard is a revision of JB 2443-85 "Cylinder-type External Filter Vacuum Permanent Magnetic 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 cylinder-type external filtration vacuum filters. This standard is applicable to cylinder-type external filtration vacuum permanent magnetic filters with upper ore feeding. The machine is mainly used for dehydration of coarse particle magnetic concentrate. This standard was first issued in January 1979 and revised for the first time in September 1985. JB/T 2443-1999 Cylinder-type External Filter Vacuum Permanent Magnetic Filter JB/T2443-1999 Standard Download Decompression Password: www.bzxz.net

ICS73.120
Machinery Industry Standard of the People's Republic of China
JB/T2443—1999
Outside filtering surface drum permanent magnetic vacuum filter
Published on 1999-06-28www.bzxz.net
National Bureau of Machinery Industry
Implemented on 2000-01-01
JB/T2443—1999
This standard is a revision of JB244385 "Cylinder type external filter type vacuum permanent magnetic filter". During the revision, the original standard was edited and the main technical content remained unchanged. Appendix A of this standard is a reminder appendix.
This standard replaces JB244385 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 is Shenyang Mineral Processing Machinery Research Institute. The main drafters of this standard are Jia Jingyi, Wang Fuzhong, Fu Jinbi, Li Jun, and Huang Jialin. This standard was first issued in January 1979 and revised for the first time in September 1985. 1
Machinery Industry Standard of the People's Republic of China
Drum-type external filtering vacuum permanent magnetic filter
Outside filtering surface drumpemanent magnetic vacuum filter
JB/T2443-1999
Replaces JB244385
This standard specifies the product classification, technical requirements, test methods, inspection rules, signs, labels, operating instructions, packaging, transportation and storage of drum-type external filtering vacuum permanent magnetic filters. This standard applies to drum-type external filtering vacuum permanent magnetic filters (hereinafter referred to as filters) with upper ore feeding. This machine is mainly used for dehydration of coarse particle magnetic concentrates.
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 the parties using this standard should explore the possibility of using the latest versions of the following standards. GB 1911990
GB/T17201979
GB/T 3768—1996
GB/T 6388—1986
GB/T9969.1-1988
GB/T133061991
JB/T1604—1998
JB/T9042—1999
3 Product classification
3.1 Model
Packaging, storage and transportation graphic signs
Determination of paint film adhesion
Acoustic sound pressure method for determining the sound power level of noise source Simple method of measuring the surface above the reflecting surface using envelope Transport packaging Receiving and shipping signs
Industrial product instruction manual
Method for compiling mining machinery product models
Permanent magnets for mineral processing equipment
The filter model should comply with the provisions of JB/T1604. The model representation method is: G
3.2 Marking example
The filter with a filtration area of ​​12m2 is marked as: filtration area, m2
External filtration
Vacuum filter
2Filter
GYW-12
Approved by the State Machinery Industry Bureau on June 28, 1999 and implemented on January 1, 2000
3.3 Basic parameters and dimensions
JB/T2443-1999
The basic parameters and dimensions of the filter shall comply with the requirements of Figure 1 and Table 1. Figure 1
Filter area
GYW-12
GYW-20
Technical requirements
Drum diameter
Drum speed
Simplified tableMagnetic induction
Electric motor
External dimensions
The filter shall comply with the requirements of this standard and be manufactured in accordance with the drawings and technical documents approved by the prescribed procedures. 4.2 Working conditions:
a) The suitable particle size of solid particles in the slurry is 0.15-0.80mm; control the feed rate to ensure that the liquid level of the material tank is stable and has overflow; b)
The optimal feed concentration is about 60%.
4.3 The effective cross-section of the drainage surface under the filter cloth of the filter shall not be less than 45% of the filter area. High H
4.4 The cavity wall of the cylinder, distribution head, trough body and the connection parts of the parts working under vacuum or pressure should be airtight and no threaded holes should be allowed.
The castings of the distribution plate, gas plate and throat are rough and should be artificially aged after rough machining. 4.6 The head of the screw fastening the distribution plate and gas plate should be buried 2-5mm relative to the contact plane of the plate. The distribution plate and the gas plate should be in close contact, and the contact spots should not be less than three per square centimeter after scraping. 4.7
The simplified body should be made of non-magnetic conductive material, and the radial runout tolerance of its outer circle shall be in accordance with the provisions of Table 2. Type
Radial runout mm
JB/T2443-1999
GYW-12
GYW-20
4.8 The polarity of each pole of the magnetic system should be the same along the axial direction and arranged alternately along the circumference. The magnetic yoke shall be made of low-carbon steel or electrical pure iron with excellent magnetic conductivity, and the yoke and the shaft shall be connected with non-magnetic materials. The magnetic blocks used in the magnetic system shall comply with the provisions of JB/T9042. 4.9 The structure of the filter shall ensure that the magnetic system rotates at the required angle according to the specified position, and that the sealing joint between the material storage box and the cylindrical cylinder does not leak slurry. 4.10 All lubricating oil passages shall be unobstructed to ensure lubrication. 4.11 The high-speed moving parts and transmission devices of the filter shall be equipped with protective covers. 4.12 The noise sound pressure level of the filter during operation shall not exceed 80dB (A). 4.13
All exposed non-machined metal parts shall be coated with two layers of primer (including maintenance primer) and two layers of topcoat. The adhesion of the paint film shall not be lower than the second level of GB/T1720. The paint shall be evenly applied without defects such as shedding, flaking, cracks and flow marks. 4.14 The complete supply scope of the filter includes: a) Complete set of mechanical parts:
b) Filter cloth, pressure rope and winding device for fixing filter cloth: c) Motor:
d) Ancillary equipment: Vacuum pump, blower, automatic drainage device, etc. are supplied according to the order agreement. The requirements for ancillary equipment are shown in Appendix A (Suggested Appendix).
5 Test method
5.1 The filter should be run at the highest speed on the test bench for 2 hours to measure the radial runout of the cylinder and the power of the motor. 5.2 Each channel of the throat should be subjected to a water pressure test and maintained at a gauge pressure of 0.2MPa for 10 minutes without leakage. 5.3 The air tightness test of the cavity wall and weld connection of the filter parts shall be carried out according to the following provisions before painting. a) The distribution head shall be filled with water and kept for 10 minutes without leakage; b) The welds of the cylinder, tank, material box and pipeline connection shall be tested for oil penetration with kerosene, and the chalk applied on the back of the weld shall not be allowed to turn black.
5.4 The state of the contact surface of the distribution plate and the gas plate shall be checked by the coloring method, and the number of contact points shall comply with the provisions of 4.6. After the distribution plate and the gas plate are assembled, use a 0.05mm feeler gauge to check their contact conditions, and the insertion depth of the feeler gauge shall not exceed 10mm. 5.5 The noise of the filter shall be determined according to GB/T3768. 5.6 The magnetic induction intensity (Table 1) shall be measured within a range of not less than 250mm from both ends of the magnetic system using a Tesla meter with an accuracy level of not less than 2.5 and a probe with a thickness of not more than 2mm. The measured value shall be determined by the radial component of the magnetic field on the cylinder surface relative to the geometric center of the magnetic pole. 6 Inspection rules
6.1 Inspection classification
Filters are divided into factory inspection and type inspection. 6.2 Factory inspection
6.2.1 The filter must be inspected and qualified by the quality inspection department of the manufacturer before it can be shipped. When it leaves the factory, it must be accompanied by documents proving the quality of the product. 6.2.2 The following items are inspected before shipment:
a) The radial runout of the cylinder and the power of the motor: 3
b) The air tightness of the connection between the cavity wall and the weld of the parts; c)
The contact state of the distribution plate and the staggered gas plate;
d) Noise:
Magnetic induction intensity;
f) Paint quality.
Type inspection
JB/T2443-1999
6.3.1 The filter shall be subjected to type inspection in any of the following cases: a)
When new products or old products are transferred to the factory for production appraisal; when the product structure, materials and process are greatly changed after normal production; when the product is resumed after long-term suspension; c)
When the results of the factory inspection are greatly different from the last inspection; e)
When the national quality inspection agency puts forward the type inspection requirement. 6.3.2 The type inspection items shall meet all the requirements of this standard. The type inspection shall be conducted on one product that has passed the factory inspection. If the inspection fails, double sampling shall be conducted. 6.3.3
Signs, labels and instructions for use
Each filter shall be fixed with a product sign 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:
Main technical parameters:
Filtration area, m2;
Magnetic induction intensity, mT:
Motor power, kW;
Machine weight, kg:
d) Factory number;
e) Date of manufacture.
A product instruction manual shall be prepared for the filter, and its contents shall comply with the provisions of GB/T9969.1. 7.2
7.3 The packaging marks of the filter shall include the shipping and receiving marks of the transport packaging, the packaging storage and transportation pictorial marks, and shall comply with the provisions of GB/T6388 and GB191.
Packaging, transportation and storage
The filter can be packaged as a whole, or packed and wrapped in a disassembled form. The wrapped parts shall be marked with a label, and the marking content shall be the same as that of 83. The parts shall be firmly fixed in the box. 8.2 The following documents shall be attached to the filter packaging: Quality certificate or product certificate:
b) Product instruction manual:
c) Packing list:
d) Product general drawing, installation drawing
JB/T2443-1999
There shall be obvious text markings on the closed box wall, including: 8.3
Name of receiving station and receiving unit:
Name of shipping station and shipping unit:
Contract number and product name, model:
d) Gross weight, net weight, box number and overall dimensions; e) Center of gravity, lifting line, storage and transportation diagram. The packaging and shipment of the filter shall comply with the requirements of water and land transportation. 8.4
The filter shall be stored in a warehouse or under a shed that can prevent direct sunlight and rain and snow from invading the packaging. During storage and transportation, the distribution head should be strictly protected, the magnetic system should be in a naturally drooping state and be able to swing freely. 8.7 The exposed processing and matching surfaces of the machine should be treated with anti-corrosion. 5
JB/T2443-1999
Appendix A
(Suggestive Appendix)
Requirements for auxiliary equipment
A1 The auxiliary equipment of the filter includes: vacuum pump, blower or compressor, automatic liquid discharge device. Vacuum pump: The vacuum degree should be able to reach 60-80kPa, and the pumping rate of the pump is 0.5~2.0m per minute per square meter of filtration area. Among them, the smaller value of the A2
air extraction rate is used to form a dense suspension without crack cake layer, while the larger value is used to form a suspension with fine pores or large crack filter cake layer.
Blower or compressor: The pressure should reach 0.01~0.03MPa, and the blowing rate should be able to reach 0.1-0.5m per minute per square meter of filtration area. Among them, the smaller blowing rate is used for filtering coarser materials, and the larger value is used for filtering finer materials. A4
The matching use of automatic drainage device shall comply with the provisions of Table A1. Table A1
Automatic drainage device
Effective volume of drainage tank
Diameter of drainage tank
GYW-12
GYW-20
Mechanical industry standards
Simple external filtration vacuum permanent magnet filter
JB/T2443—1999
Published and issued by the Machinery Standardization Research Institute of the Ministry of Machinery Industry Mechanical Standards of the Ministry of Machinery Industry Printed by the Institute of Chemistry (No. 2, Shouti South Road, Beijing: Postal Code 100044)*
Format 880×1230
1/16 Printing Sheet 3/4
4 Word Count 14,000
First Edition in August 1999
: First Printing in August 1999
Print Quantity 1-500
Price 1000 Yuan
99-079
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