Some standard content:
QB/T2282—1996
Compared with the previous version, this standard adds the disc refiner ZDP15 series. From the date of implementation of this standard, the professional standard ZBY91014-1989 "ZDP11~13 double disc refiner" issued by the former Ministry of Light Industry will be invalid.
This standard is proposed by the National Technical Committee for Standardization of Light Industry Machinery. This standard is under the jurisdiction of the National Technical Committee for Standardization of Light Industry Machinery and the Technical Committee for Standardization of Papermaking Machinery. The drafting unit of this standard: Shanghai Light Industry Machinery Plant No. 2. The main drafters of this standard: Wu Mingjiang, Zheng Weiqi. This standard was first issued on May 24, 1985, first revised on May 1, 1989, and second revised on January 27, 1997. 286
1 Scope
Light Industry Standard of the People's Republic of China
Double Disc Refiner
QB/T2282--1996
This standard specifies the classification and technical requirements, test methods and inspection rules of ZDP11~15 double disc refiners (hereinafter referred to as "disc refiners").
This standard is applicable to disc refiners for continuous pulping of papermaking pulp or other fiber pulp. The diameter of the refiner is 350~750mm. 2 Referenced 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 version of the following standards. GB4720 --1984Electronic control equipment - Part - Low voltage electrical appliances and electronic control equipmentGB/T14253-1993General technical conditions for light industrial machineryQB/T1588.1~~1588.3-1992General technical conditions for welding parts, cutting parts and assemblies of light industrial machineryQB/T1588.41993General technical conditions for painting of light industrial machineryZBJ50004-1988Noise measurement of metal cutting machine tools3Product classification
The disc mill is a double-grinding horizontal milling equipment with slurry inlet on both sides or one side, radial upper or single-side slurry outlet. 3.2Model
The product model consists of industry code, major category code, classification code, design sequence number and endnote number. D
3.3Basic parameterswwW.bzxz.Net
The basic parameters should comply with the provisions of Table 1.
China Light Industry Federation Approved on January 27, 1997
Modify the design sequence number (A, BC·indicate the design sequence number
Classification code (disc refiner)
Major category code (pulping equipment)
Industry code (papermaking machinery)
Implemented on September 1, 1997
TTiKAOiKAca
Grinding disc diameter
QB/T2282—1996
Pulp inlet diameter
Motor side
Machine cover side
This standard specifies that the disc refiner diameter series is 350, 450, 550, 750. 1
2 Disc refiners with a disc diameter of 360 and 380 shall comply with the standard of 350 disc refiners. 3 Disc refiners with a disc diameter of 500 and 600 shall comply with the standard of 55 0 disc mill standard. 4 Disc mills with grinding disc diameters of 650 and 700 are implemented according to the 750 disc mill standard. Outlet diameter
110(90)
5 Power of main motor, users can select according to needs and determine in the order form. Rotating plate speed
980~1480
Production capacity
(absolute dry pulp)
4~20
15~110
35~350
Power of main motor
75~110
132280
315~630
When using internal series beating, the diameter of the pulp outlet pipe of ZDP13 disc mill is 90, when using single-tube pulping, the pulp inlet diameter is 125 and the pulp outlet diameter is 110.
7ZDP13 type can choose high-voltage motor according to user requirements, while ZDP15 type generally refers to high-voltage motor. 4 Technical requirements
4.1 Basic requirements
4.1.1 The disc mill shall comply with the requirements of this standard and be manufactured in accordance with the drawings and technical documents approved by the prescribed procedures. 4.1.2 The welded parts, processed parts and assembly of the disc mill shall comply with the relevant provisions of QB/T1588.1~~1588.3. 4.2 Performance
4.2.1 Working conditions
a) The slurry entering the disc mill is not allowed to contain metal and hard impurity blocks; b) The working conditions of the disc mill shall comply with the provisions of Table 2. Table 2
Installation requirements
Insert slurry concentration, %
The installation requirements shall comply with the provisions of Table 3.
4.2.3 The production capacity shall comply with the provisions of Table 1. 288
Slurry inlet pressure, MPa
0.15~~0.2
Longitudinal horizontal tolerance
Water seal pressure of sealing ring, MPa
Higher than slurry outlet pressure
0. 01 ~ 0. 05
Transverse horizontal tolerance
4.3Main parts quality requirements
QB/T 2282—1996
Main parts processing accuracy requirements shall comply with the provisions of Table 4. Table 4
Support journal size tolerance
Testing parts and items
Support journal size tolerance at coupling installation
Support journal surface roughness R. μm
Coaxiality tolerance of the axis of the supporting journal to the common axis of the two supporting journals, mmRadial runout tolerance of the surface of the rotating disk journal to the common axis of the two supporting journals, mmCoaxiality tolerance of the axis of the journal at the rotating disk seat to the common axis of the two supporting journals. mm
Surface roughness Rs of the shaft hole, μm
End face circular runout tolerance of the two end faces fitted with the grinding disc to the axis of the shaft hole (spline hole), mm
Parallelism tolerance between the two end faces fitted with the grinding disc, mmFlatness tolerance of the grinding gear end face, mm
Parallelism tolerance between the grinding gear end face and the back face of the grinding gear, mmNote: The grinding disc of ZDP15 type is a split structure, and the requirements listed in the table are for each block. 4.4 Assembly requirements
0. 08(—)
(3480 places) (3680 places)
All manufactured parts must be inspected and qualified, and outsourced parts and purchased parts must have a certificate of qualification before they can be assembled. The assembly accuracy requirements shall comply with the provisions of Table 5.
End face circular runout tolerance of the outer end face of the grinding disc mounted on the turntable facing the main shaft axis (applicable to the fixed structure of the turntable)
End face circular runout tolerance of the end face of the fixed grinding disc of the casing (inlet pipe) facing the main shaft axisAxial clearance between the coupling at the shaft end and the coupling at the motor end (applicable to the supporting moving structure)Coaxiality tolerance of the axis of the coupling at the shaft end and the axis of the coupling at the motor endTiiKAoNniKAca-
14～15
$270 place
$370 place
$510 place
5570 place
$270 place
370 place
$510 place
570 place
4.4.3 Assembly requirements
QB/T 22821996
a) The turntable must rotate flexibly and should comply with the provisions of QB/T1588.3, with no axial movement obstruction; b) When operated manually or electrically, the forward and backward movement of the moving seat should be smooth and flexible without obstruction. 4.4.4 The automatic controller of the disc grinder with a microcomputer should be easy to adjust, and the user can debug it by himself according to the instructions when using it. 4.4.5 Interchangeability requirements
The grinding disc of the disc grinder should ensure that the matching with the turntable, housing, moving seat and other parts meets the requirements of interchangeability. 4.5 Operation performance requirements
4.5.1 The idling operation should be smooth and flexible, the bearings should be well lubricated, and the seals should be reliable without leakage. 4.5.2 During operation, there should be no abnormal screaming and irregular impact sound, and the sound pressure level of the idling noise, the bearing temperature rise and the maximum bearing temperature of the whole machine should not exceed the requirements of Table 6.
Noise during idling, dB(A)
Bearing temperature rise, C
Bearing maximum temperature,
4.6 Reliability requirements
4.6.1When the gap between the grinding discs is adjusted electrically, the reciprocating action shall be sensitive and the limit device shall be reliable. 25
4.6.2The wiring of the electric control box shall be neat and the electrical requirements shall comply with the relevant provisions of GB4720. ZDP13
4.6.3The control systems and alarm systems of the automatic controller of the microcomputer disc grinder shall be sensitive and reliable, and the command signals shall be accurate. 4.6.4The disc grinder coupling shall be equipped with protective devices and shall be safe and reliable. 4.7 Appearance quality requirements
4.7.1 The outer surface of the disc grinder should be flat and smooth, and there should be no obvious misalignment between the adjacent connecting edges. The auxiliary mechanism should be coordinated with the main machine. 4.7.2 The quality of the paint shall comply with the provisions of QB/T1588.4. If the user has special requirements for the paint color, it shall be agreed upon by both parties. 4.8 Requirements for completeness
a) One main machine;
b) Control box;
c) The spare parts and accessories supplied randomly shall be complete as required. 5 Test methods
5.1 4.3, 4.4, 4.6, 4.7, and 4.8 in the technical requirements shall be inspected in accordance with the manufacturer's inspection specifications. 5. 2 Operation test
5.2.1 The idling test time shall not be less than 2h, and the idling noise measurement shall comply with the relevant provisions of ZBJ50004. 5.2.2 The surface temperature of the bearing seat shall be measured with a thermometer, and the leakage at the seal shall be inspected by visual inspection and touch. 5.2.3 The reliability test of the electric adjustment reciprocating motion shall be conducted for no less than 5 times. 5.3 Under the conditions of 4.2.1 and 4.2.2, the performance and pulping quality shall be measured according to the professional measurement method of the pulping process of the paper mill. 6 Inspection rules
6.1 The disc mill must be inspected and qualified by the inspection department of the manufacturer and accompanied by a product certificate before it can leave the factory. 6.2 Factory inspection items
a) The general assembly inspection shall comply with the provisions of 4.4;
b) The operating performance shall comply with the provisions of 4.5;
c) The appearance quality shall comply with the provisions of 4.7;
QB/T 2282--1996
d) Article 5.2 shall be sampled at 10% of the number of units shipped from each batch, but not less than 2 units. If one unit fails to meet the requirements, double the sample inspection shall be carried out, and if another unit fails to meet the requirements, a full inspection shall be carried out.
6.3 Type test
Performance in use is a type test, which is carried out among users. One unit is sampled each time and is carried out in one of the following situations: a) When a new product is tested for type identification;
b) After formal production, if there are major changes in structure, materials, and processes that may affect product performance; c) When the national quality supervision agency proposes a type test requirement. When the manufacturer holds a relevant certificate signed by the user stating that the product complies with this standard, the test may not be carried out. 7 Marking, packaging, transportation, and storage
7.1 Marking
7.1.1 A product label is fixed at a conspicuous position on the disc grinder. The content of the label is as follows: a) Product name;
b) Product model;
c) Main product parameters;
d) Manufacturer's name;
e) Manufacturing date (or number).
7.1.2 The outer wall of the packaging box should be clearly, neatly and durable, and the contents are as follows: a) Manufacturer's name;
b) Product name and model;
c) Receiving unit, shipping station name, and arrival station name; d) Packaging, storage and transportation diagrams marked with "Handle with care", "Upward", "Lift from here", "Avoid moisture" and "Center of gravity"; e) Overall dimensions and gross weight;
f) Packaging, storage and transportation, and shipping and receiving signs should comply with the provisions of GB/T14253. 7.2 Packaging, storage and transportation
7.2.1 The disc grinder is shipped in separate boxes, with the main machine and electric control box each packed in one box, and the packaging and accessories of the automation controller fixed in the main machine box. 7.2.2 Anti-rust grease is applied to the exposed processed surface before packing. 7.2.3 The following documents should be placed in the main engine packaging box: a) Product certificate;
b) Product manual;
c) Packing list.
7.3 Storage
7.3.1 The disc mill should be unpacked and inspected once every 6 months from the date of packing, and anti-rust measures should be taken when necessary. 7.3.2 After packing, it should be placed in a dry and well-ventilated place. It should not be stored in the open air, and it should not be piled up with corrosive chemicals. For temporary open air storage, rain and moisture protection measures should be taken. 291
TiiKAoiKAca
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.