First, the coal loader implementation standards.
MT 416-1995 "General Technical Conditions for Coal Loaders".
MT 399-1995 Code for Inspection of Coal Loaders
Second, the coal safety certification process.
Application Preliminary Examination and Acceptance Technical Review Product Inspection Factory Inspection Final Examination Safety Mark Issuance Post-certification supervision.
3. Authentication mode.
Technical assessment + product inspection + factory review + post-certification supervision.
IV. Application Requirements.
1) The business license is within the validity period, and the applied product is within the scope of business;
2) Have professional and technical personnel suitable for the applied products;
3) Have a fixed place required for the production of the applied product;
4) Have a quality management organization and quality management system documents;
5) Have the ability to apply for the debugging of finished products;
6) Have the ability to inspect the factory of the applied products.
Note: The OEM method can also be applied, and the conditions are described in the "Supplementary Provisions on the OEM Method".
5. Application materials.
1.Application for Safety Mark of Mining Products.
2.The applicant's business license.
3.Self-assessment report.
1) The self-inspection or third-party inspection report of the application product to meet the requirements of this rule is mainly based on the standard requirements;
2) The self-assessment of the applicant's factory's quality assurance ability to meet the requirements of these rules.
4.Product technical documentation.
1) Product technical specifications.
Clarify the implementation of national standards and industry standards for products.
2) Drawings. **Diagram, electrical system diagram, hydraulic schematic diagram, water system diagram.
3) List of main parts (yuan) components and important raw materials.
4) Others (pressure vessel manufacturing certificate, non-metallic flame retardant and antistatic inspection report, etc.).
6. Product technical parameters.
1.Machine. a) Dimensions;b) Machine weight;c) ** machine power;d) Undercover depth;e) Ground gaps;f) Climbing ability;g) Walking speed;h) Gantry height;i) production capacity;j) Ground specific pressure;k) Minimum turning pass radius;l) Traction.
2.**Transport.
a) Mode of transport;b) Drive mode;c) Power;d) Chute size;e) scraper chain speed;f) Transport capacity.
3.Loading mechanism.
a) Loading type;b) Drive mode;c) Loading capacity;d) Star wheel rotation speed;e) Bucket and bucket capacity;f) Shovel width;g) Bucket telescopic length;h) Shovel undercover depth;i) Lift the spatula board.
4.Running gear.
a) Walking type;b) Drive mode;c) Walking speed;d) Ground length;e) track shoe width;f) Tensioning form;g) Braking method.
5.Spray system.
a) External water supply pressure;b) Total Flow;c) Spray water pressure.
6.Hydraulics.
a) Pumping station drive mode;b) Rated power of the pumping station;c) System rated pressure;d) Total Flow;e) Fuel tank capacity;f) Parameters of hydraulic motors, pumps and valves.
7.electrical system.
a) Electric control box (operation box): voltage level, frequency conversion range, explosion-proof type, intrinsic safety relationship;b) Motor: model, rated voltage, rated current, rated power;c) Others: model, rated voltage, rated current, rated power, explosion-proof type, intrinsically safe relationship (if any).
7. Test samples.
The applicant shall prepare inspection samples in accordance with the requirements of the "Specification for Sampling of Coal Loader Product Safety Marks". The samples shall be manufactured by the applicant in the production factory applied for this time, and shall not borrow, rent or purchase samples for inspection.
8. Conclusion of factory review.
If the factory review conclusion is A-level, the review is qualified.
If the factory assessment conclusion is B or C level, the applicant shall rectify the non-conformities, and the rectification work shall be completed within 90 days, and submit the rectification report to the review team leaderIf the rectification is not completed within the time limit or the rectification is unqualified, the application will be terminated.
If the factory assessment conclusion is D grade or the rejected item is unqualified, the applicant shall complete the rectification as required within 90 days and submit the rectification report to the review team leader. If the rectification meets the requirements after review, the certification center needs to arrange a re-evaluation of the rectification situation in principle. If the rectification is not completed within the time limit, the rectification is unqualified or the re-evaluation is unqualified, the bid will be terminated.
9. Certificate inquiry method.
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