1. Scraper conveyor accessories include:
Speed-regulating fluid coupling.
Valve-regulated liquid-filled fluid coupling.
Fluid couplings.
Fusible plugs. Explosive plugs.
Reducer for conveyor (belt type).
Reducer (scraper) for conveyor
Friction couplings.
Second, the product implementation standards.
Speed-regulating fluid coupling.
mt/t 923-2002
Valve-regulated liquid-filled fluid coupling.
mt/t 923-2002
mt/t 208-1995
Fluid couplings.
mt/t 208-1995
mt/t 100-1995
Fusible plugs: MT T 208-1995
Explosive plug: MT T 466-1995
Reducer for conveyor (belt type).
mt/t 681-1997
Reducer (scraper) for conveyor
mt/t 101-2000
mt/t 148-1997
Friction couplings.
mt/t 208-1995
3. Authentication mode.
Technical assessment + product inspection + factory review + post-certification supervision.
4. Documents and materials need to be submitted.
1.Application for Safety Mark of Mining Products.
Including the basic information of the enterprise registration form, letter of commitment, application product registration form.
2.The applicant's business license.
3.Self-assessment report.
4.Product technical documentation.
1) Product technical specification.
Clarify the implementation of national and industry standards for products.
2) Drawings. **Fig.
a.It should have a complete structural composition, and cannot be illustrated by mere dot sketches; The title bar should be marked with the product name, model, drawing number, and unit name; The parts list should contain pump wheels, turbines, product nameplates, rivets, MA signs, etc.;
b.Technical requirements: The product implementation standards, safety standards and control information should be indicated, and the requirements and conditions related to the performance, assembly, inspection and use of the product should be proposed;
c.Necessary dimensions: mainly refer to the dimensions related to the specifications, assembly, installation, and appearance of the product, including the effective diameter of the circulating circle, the connecting shaft, and the height of the center;
d.Main technical data table:
a) Rated input speed (r min); b) Rated transmission power (kw); c) effective diameter of the circulating circle (mm); d) working medium; e) working medium density (kg m); f) speed regulation range (for different loads, the corresponding speed regulation range); g) flow rate of liquid supply pump (m h); h) Inlet and outlet oil pressure (mpa); i) the maximum allowable temperature of the working fluid ( ) j) the type of pump (built-in pump, external pump); k) The type of safety standard is subject to control. and related technical parameters; l) Dimensions (LxWxH) (mm).
3) List of main parts (yuan) components and important raw materials (valve regulated liquid filling fluid coupling as an example).
4) Miscellaneous. Inspection report of non-metallic material parts.
5. Handling process.
Certification application - preliminary review and acceptance - technical review and product inspection - initial factory inspection - evaluation and approval of certification results - supervision after certification - certificate renewal.
6. Special requirements for factory review (speed regulating fluid coupling products as an example).
7. Coal safety certificate inquiry.
Mine Safety Mark Certification
Application for scraper conveyor coal safety certification (MA certification) and mine safety certification (KA mark).
Belt conveyor coal safety certification, mine safety certification (MA mark, KA mark) handling.
Application for coal safety certification (MA mark) and mine safety certification (KA certification) for mining vulcanizer.
Application for mine safety certification (KA certification) for general high-voltage and low-voltage switchgear for mining.
Application for mine safety and production monitoring and control system mine safety certification (KA mark).