This standard specifies the general technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of fourdrinier multi-cylinder cultural paper machines with a net paper width of less than 5000mm. This standard applies to fourdrinier multi-cylinder paper machines (hereinafter referred to as "paper machines") with a speed not exceeding 600m/min and mainly producing cultural paper with a basis weight of 40 to 80g/m2. Fourdrinier paper machines producing other basis weights can also be used as a reference. QB/T 1627-1992 Fourdrinier multi-cylinder cultural paper machines QB/T1627-1992 Standard download decompression password: www.bzxz.net

Light Industry Standard of the People's Republic of China
Fourdrinier multi-cylinder cultural paper machine
1 Subject content and scope of application
QB/T 1627—1992
This standard specifies the general technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of fourdrinier multi-cylinder cultural paper machines with a net paper width of less than 5000mm.
This standard is applicable to fourdrinier multi-cylinder paper machines (hereinafter referred to as "paper machines") with a speed not exceeding 600m/min and mainly producing cultural paper with a basis weight of 40~~80g/m. Fourdrinier paper machines producing other basis weights can also be used for reference. 2
Referenced standards
GB 191
Pictographic marking for packaging, storage and transportation
GB/T451
Determination of size, skewness, basis weight, thickness and tightness of paper and paperboardGB/T 452
GB/T 453
GB/T 454
Determination of longitudinal, transverse and front and back properties of paper and paperboardDetermination of tensile strength and elongation of paper and paperboardDetermination of bursting resistance of paper
GB/T455
Determination of tear resistance of paper and paperboard
GB/T456
GB/T457
GB/T458
GB/T 459
GB/T460
GB/T 461
GB/T 462
GB/T463
GB/T 464
GB/T 465
GB/T 6388
Determination of paper smoothness
Determination of paper folding endurance
Determination of paper air permeability
Determination of paper elasticity
Determination of paper and paperboard sizing degree
Determination of paper and paperboard absorbency
Determination of water content in paper and paperboard
Determination of ash content in paper and paperboard
Determination of strength loss of paper after heat treatment
Determination of paper wet strength
Marking for shipping and receiving of transport packaging
GB/T 14253
General Technical Conditions for Light Industry Machinery
JB/T8 Product Label
Technical Specifications for Construction and Acceptance of Pulp and Papermaking Equipment Installation ProjectsQB/T 1422.1
Technical Conditions for Headbox of General Parts of Papermaking MachineryQB/T 1422.2
General Parts of Papermaking Machinery
Technical Conditions for Vacuum RollerwwW.bzxz.Net
QB/T1422.3Technical Conditions for Ordinary Cast Iron Roller of General Parts of Papermaking MachineryQB/T1422.5Technical Conditions for Ordinary Steel Tube Roller of General Parts of Papermaking Machinery
Technical Conditions for Cylindrical Reel
QB/T1424Technical Conditions for Calender of Paper Machine
QB/T1588.4General for Painting of Light Industry Machinery Technical conditions Approved by the Ministry of Light Industry of the People's Republic of China on November 10, 1992 and implemented on July 1, 1993
QB/T1627--1992
213Y91003 Technical conditions for reduced cast iron drying cylinders in papermaking machines ZI3Y91010 Technical conditions for natural granite jade press rolls 3 Technical requirements
3.1 Basic requirements
3.1.1 The paper machine shall comply with the provisions of this standard and be manufactured in accordance with the drawings and relevant technical documents approved by the prescribed procedures. 3.1.2 The manufacture of the paper machine shall comply with the provisions of GB/T14253. 3.1.3 The installation and acceptance of the paper machine shall comply with the provisions of QBJ1. 3. 2 Performance requirements
3.2.1 At the highest operating speed, the paper machine shall run normally without load. 3.2.2 According to the raw material ratio and papermaking quantity specified in the design, under the conditions of normal papermaking process and representative product rated output, the quality of the finished paper shall meet the requirements of the corresponding paper product standards.
3.2.3 The steady speed accuracy of the paper machine shall not exceed ±0.3% when a DC motor is used, and shall not exceed ±0.5% when a non-DC motor is used. : 3.3 Quality requirements for main components
3.3.1 The headbox shall comply with the provisions of QB/T1422.1. 3.3.2 The vacuum roller shall comply with the provisions of QB/T1422.2. 3.3.3 The stone roller shall comply with the provisions of ZBY91010. 3.3.4 The drying cylinder shall comply with the provisions of ZBY91003. 3.3.5 The steel tube roller shall comply with the provisions of QB/T1422.5. 3.3.6 The cast iron roller shall comply with the provisions of QB/T1422.3. 3.3.7 The cylinder paper reel and paper calender that match the paper machine shall comply with the provisions of QB/T1423 and QB/T1424. 3.4 Assembly quality requirements
3.4.1 The general installation of each paper machine shall be carried out at the user's factory, but the paper machine shall be pre-assembled in parts or locally on the base plate that meets the installation requirements before leaving the factory (each type of roller, corrector, tensioner, and scraper are allowed to be installed in one set each). 3.4.2 Fourdrinier section
The installation level of the breast roll and vacuum couch roll is 0.05/1000; the breast roll must be raised and lowered smoothly and flexibly, and the two sides must move synchronously; b.
The surfaces of the breast roll, table roll, dewatering plate, water suction box, etc. should be on the same horizontal plane. 3.4.3 Pressing section
The installation level of the lower roller surface of the pressing section is 0.06/1000; the installation level of the felt guide roller surface is 0.2/1000; the action of the pressure mechanism should be flexible, accurate and stable. 3.4.4 Drying section
The installation level of the cylinder surface of the drying cylinder is 0.1/1000; the installation level of the guide roller surface is 0.2/1000; the meshing side clearance of the drying cylinder gear set should be checked; c.
d. The frame, transmission gear box and walkway of the drying section should be pre-installed, and a set of drying cylinders (pre-installed shafts are allowed to be used instead) should be installed. The first unit of each batch of production should be assembled according to the provisions of this standard, and the remaining units are allowed to only pre-install the frame, transmission gear box and walkway separately. 3.4.5 The adjustment mechanism of the corrector and tensioner should be flexible. 3.5 Appearance quality requirements
3.5.1 The appearance surface should be flat and smooth, the outer edges of the joints of adjacent parts should not have obvious misalignment, and the pipes and railings should be smooth and neat. 3.5.2 Exposed accessories and matching parts should be coordinated, harmonious and beautiful with the paper machine, and the protective cover should not have convexities or concavities. 3.5.3 The painting requirements for the surface of the paper machine should comply with the provisions of QB/T1588.4 when the user has no special requirements. 200
3.6 Safety and health requirements
QB/T1627—1992
3.6.1 When the paper machine is running at a speed below 200rm/min, the noise shall not exceed 90dB (A), and when the speed is above 200m/min, the noise shall not exceed 92d13 (A) (noise factors caused by the outside of the paper machine are allowed to be excluded). 3.6.2 Safety protection devices should be installed on the parts of the paper machine that may cause damage to people or equipment. 4 Test method
4.1 No-load running condition is based on visual inspection.
4.2 Paper quality is based on the relevant provisions of GB/T451~465. 4.3 The steady speed accuracy of the paper machine is based on the determination method of each transmission point within 15 minutes. 4.4 The noise is measured at the outer end of the operating side, 1m away from the bottom rail and 1.5m above the ground at 3 points (suction roller, press roller, drying part), and the maximum value is taken.
4.5 The installation level is measured with a level.
4.6 The action test is based on visual inspection.
4.7 The gear meshing side clearance is checked with a feeler gauge.
5 Inspection rules
5.1 Each paper machine shall be inspected and qualified by the manufacturer before it can be shipped out of the factory, and documents proving the product's qualification shall be attached when it leaves the factory. 5.2 The inspection of paper machines is divided into factory inspection and type inspection. 5.2.1 Factory inspection
a. The quality inspection of main components shall meet the requirements of Article 3.3; b. The quality inspection of assembly shall meet the requirements of Article 3.4; c.
The appearance quality inspection shall meet the requirements of Article 3.5. 5.2.2 Type inspection
The paper machine shall be inspected in the user's factory during the trial production of new products or the trial production of old products; or when there are major improvements after production, which may affect the product performance; or when the product is resumed after a long period of suspension; or when the factory inspection results are significantly different from the last type inspection; and when the national quality supervision agency proposes it; the following items shall be inspected: product performance test shall meet the requirements of Article 3.2; a
b. Noise and safety inspection shall meet the requirements of Article 3.6; Check that the electrical, hydraulic, lubrication, pneumatic and other systems of the paper machine are working properly. c.
6 Marking, packaging, transportation, storage
Product labels should be fixed in obvious places on the paper machine. The type and size of the labels should comply with the provisions of JB/T8. The following 6.1
Content:
Manufacturer name;
Product name;
Product model;
Net paper width;
Basis;
Working speed;
Track gauge;
Weight:
Manufacture date;
Factory number.
QB/T 1627— 1992
6.2 The paper machine shall be equipped with signs indicating lubrication, operation, safety, etc. The signs shall have correct content and the type and size shall comply with the provisions of JB/T8. 3The accompanying documents shall include:
Product manual;
b. Certificate of conformity;
Packing list.
The packaging, storage and transportation of the paper machine shall comply with the provisions of GB/T14253. 6.4
6.5 The graphic signs for paper machine hoisting, receiving and delivering, and storage and transportation shall comply with the provisions of GB/T6388 and GB191. Additional remarks:
This standard is proposed by the Technical Equipment Department of the Ministry of Light Industry. This standard is under the jurisdiction of the National Light Industry Machinery Standardization Center. This standard was drafted by Shanghai Paper Machinery General Factory. 202
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