JB/T 9033-1999 JB/T 9033-1999 SZR type hot ore vibrating screen JB/T9033-1999 Standard download decompression password: www.bzxz.net

JB/T9033--1999
This standard is a revision of ZBD95004-90 "SZR Hot Mineral Vibrating Screen". Compared with ZBD95004-90, the main technical content of this standard has been changed as follows: the structural type diagram of ZBD95004-90 has been cancelled, the motor power, external dimensions and equipment weight parameters in the basic parameter table of ZBD95004-90 have been cancelled, and the service life of the main vulnerable parts, the sieve plate, has been increased from no less than 500h to no less than 1500h. This standard will replace ZBD95004-90 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: Shanghai Metallurgical Mining Machinery Factory. The main drafters of this standard: Zhu Huafu, Zhang Junwu, Huang Jialin, Lu Qiuyun. 564
1 Scope
Machinery Industry Standard of the People's Republic of China
SZR Refractory Vibrating Screen
TypeSzR Refractory Vibrating ScreenJB/T9033-1999
Replaces ZBD95004--90
This standard specifies the classification and naming, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of SZR Refractory Vibrating Screen.
This standard is applicable to refractory vibrating screens for screening hot sintered ore with a particle size of no more than 150mm and a temperature of no more than 850C after crushing.
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 Pictorial symbols for packaging, storage and transportation
GB/T13306-1991 Labels
GB/T13384--1992 General technical conditions for packaging of electromechanical products 3 Product classification and naming
Basic parameters should comply with the provisions of Table 1.
SZR-1545
SZR-2575
SZR-3175
Screen size
1500X4 500
1 2500×7500
3100×7500
Screening areaScreen surface inclination
Installation type
Product model representation method is as follows:
Approved by the State Machinery Industry Bureau on 1999-06-28 (°)
Screen hole size
Processing capacity
≥250
≥450
Screen surface width, length, dm
Vibrating screen
Sintering equipment
Vibration frequency
Vibration direction angle||tt| |2000-01-0.1 Implementation
4 Technical requirements
4.1 The structure of the hot mine vibrating screen should ensure:
JB/T9033--1999
a) Except for the shutdown due to planned maintenance, the working system is 24h continuous operation;b) The lubricating surface has dust prevention measures;
c) The wearing parts should be interchangeable, and hot replacement is allowed and easy to replace;d) The load of the equipment on the foundation should be small;
e) The screen surface should be able to withstand a temperature of 850C, and the main structural parts should be able to withstand a temperature of 450C. 4.2 The service life of the main wearing parts of the hot mine vibrating screen a) The screen plate is not less than 1500h (based on the screen hole width direction after wear is not more than 8.5mm);: b) The vibrator bearing is not less than 5000h. 4.3 The service life of the main engine of the hot mine vibrating screen before the first overhaul shall not be less than 7500h (based on the replacement of the small crossbeam); 4.4. The service life of the screen frame shall not be less than 15000h (based on the failure of the side plate). 4.5 Safety requirements
4.5.1 The impeller and eccentric block of the hot mine vibrating screen shall be painted red. 4.5.2 Under working conditions, the noise (sound pressure level) value of idling operation shall not exceed 95dB(A). 4.6: Quality requirements for main parts
4.6.1 The screen plate
The material is alloy cast steel, and its wear-resistant life shall not be less than the provisions of 4.2a) of this standard. 4.6.2 Side plate
4.6.2.1 One splicing weld is allowed in the width direction, and splicing is not allowed in the length direction. 4.6.2.2 The weld must be inspected by ultrasonic flaw detection, and two pores with a diameter of ≤2mm are allowed to exist within any 50mm weld length. 4.6.3 Crossbeam
4.6.3.1 The heating temperature of hot pressing should not exceed 950C, and it should be cooled naturally after hot pressing. Water quenching is not allowed. 4.6.3.2 The two end faces of the crossbeam must be perpendicular to the installation plane of the two end screen plates, and the verticality tolerance is 0.3mm4.7. Assembly quality requirements
4.7.1 The hot ore vibrating screen should run smoothly without abnormal noise. The lateral swing should not be greater than 0.5mm, and the amplitude error of the two side plates should not be greater than 0.5 mm.
4.7.2 The relative position of the coaxial eccentric block of the vibrator should be consistent. Measured at the center line R235 of the eccentric block, the relative error between the two should not be greater than 3mm.
4.7.3 After the vibrator is assembled, the rotation of the shaft should be flexible, and the rotation resistance of the two shafts should feel basically the same. 4.7.4 The relative position of the two vibrator eccentric blocks should be consistent. When measured at the center line R235 of the eccentric block, the relative position error should not exceed 3mm.
4.7.5 The temperature rise of the vibrator bearing should not exceed 55C. 5 Test method
5.1 Amplitude
Measure with an amplitude indicator with a line error of less than 0.4mm. The measuring points should be evenly distributed on the two side plates of the screen box. 5.2 Vibration frequency
Measure with a tachometer with an error of less than 20%.
5.3 Vibration direction angle
Measure with a vibration direction angle plate with an error within ±1°. 5.4 Noise
JB/T9033-1999bZxz.net
Weighted by ordinary sound level meter (A), set at 1m from both sides of the screen frame, its height is the horizontal plane formed by the center of the vibrator, there should be no less than three measuring points on each side, and the average value is taken. 5.5 Bearing temperature rise
Stop the vibrating screen after 6h of operation, and measure the difference between the maximum temperature of the bearing seat shell and the ambient temperature. 5.6 Screen surface inclination
Calculate by trigonometric function through the actual measurement of the spring seat height difference and the spring center distance. 5.7 Processing capacity
Use a stopwatch and a belt scale to measure the feed rate per unit time, and then convert it into the processing capacity per hour. 5.8 Life of wearing parts
By measuring the size of the screen hole, calculate its service time when the screen hole is worn to the specified width. 6 Inspection rules
6.1 Factory inspection
6.1.1 Each hot mine vibrating screen must be inspected and qualified by the quality inspection department of the manufacturer before it can be shipped, and it must be accompanied by a product certificate. 6.1.2 When each hot mine vibrating screen is tested under no-load conditions, its continuous operation time should be no less than 6 hours. 6.1.3 Inspection items:
a) Amplitude;
b) Vibration frequency;
c) Vibration direction angle;
d) Noise;
e) Vibrator bearing temperature rise.
6.2 Type inspection
6.2.1 Type inspection shall be carried out in any of the following cases: a) New products developed or finalized products produced by a new factory; b) When the design, process or material of the product changes and affects the product performance; c) When the product is resumed after being discontinued for 3 years; d) Products produced in batches (or produced annually) shall be inspected regularly every 5 years; e) When the national quality supervision agency proposes type inspection requirements. 6.2.2 The hot mine vibrating screen can only be type inspected after running for 5000 hours in hot state. 6.2.3 Inspection items:
a) Amplitude,
b) Vibration frequency;
c) Vibration direction angle;
d) Noise;
e) Vibrator bearing temperature rise;
f) Screen surface inclination;
g) Processing capacity;
h) Life of wearing parts.
7 Marking
7.1 Product marking
Each hot mine vibrating screen shall have a product label fixed in an appropriate and prominent position, and its type and size shall comply with the provisions of GB/T13306, with the following contents:
a) Model, specification and name of the product;
b) Main technical parameters;
c) Manufacturing date;
d) Factory number;
e) Manufacturer's name.
7.2 Packaging marking
JB/T 9033--1999
The text and markings on the packaging box and bare parts shall comply with the provisions of GB191. 8 Packaging, transportation and storage
8.1 Packaging
The packaging of hot mine vibrating screen shall comply with the provisions of GB/T13384. 8.2 Random technical documents
The manufacturer shall send the following technical documents to the user at random, put them in the box and mark them on the outside: a) Packing list,
b) Product factory certificate;
c) Product instruction manual;
d) Product installation diagram;
e) Random accessories list.
8.3 Transportation and storage
8.3.1 The hot ore vibrating screen shall meet the requirements of water and land transportation. 8.3.2 Storage requirements for product packaging:
a) It should be placed flat and stable, and a certain distance from the ground should be kept, and it should not be stacked; b) The storage place should have protection measures against rain, sun and water accumulation. 8.3.3 The product should be checked regularly during the storage period, and the following matters should be noted: a) Whether the protective layer on the surface of each machine part has lost its anti-rust effect, whether the paint has discolored and peeled off, and a new protective layer should be replaced if necessary; b) When the product storage period exceeds six months, it should be maintained once. 568
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