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Iron and steel industry pollution permits speed, metallurgical Industry Planning Research Institute help enterprises to cope with the new situation of iron and steel
1 background
On July 27, 2017, the Ministry of Environmental Protection officially issued the “Application for Sewage Permits and the Issuance of Technical Specifications for the Iron and Steel Industry†(HJ 846—2017), which marked the official start of the sewage permitting work in the steel industry. The enterprise has already passed the “national sewage permitâ€. The reporting platform will carry out the declaration of the sewage permit.
In the new environmental protection system, the sewage permit system is the core system for the fixed pollution source environmental management, and realizes the “one-standard†management of fixed pollution sources. The sewage permit will be the sole administrative license for the sewage disposal of steel companies and an important basis for environmental law enforcement inspections. Iron and steel enterprises must carry out self-monitoring, establish account books, periodic reports and information disclosure with certificates, and realize the transition from "I want to abide by the law" to "I must abide by the law." For iron and steel enterprises that have unlicensed sewage discharge or illegal discharge, they will be severely punished by daily punishment and suspension of production. In particular, the steel industry as a key industry to resolve excess capacity, "unlicensed" enterprises that have not obtained a sewage permit will be the top priority in resolving production capacity.
2 The scope and time of certification in the steel industry
2.1 Steel industry certification scope
According to the relevant requirements of the “Application for Pollution Discharge Permit and the Technical Specification for Iron and Steel Industry†and the “Catalogue for Classified Management of Fixed Pollution Sources and Sewerage Licensing (2017 Edition)â€, the scope of certification for the steel industry includes sintering, pellets, ironmaking, steelmaking and The pollutant discharge units of the production processes such as steel rolling, including independent rolling mill enterprises and independent pellet enterprises, all need to apply for the discharge permit. After the technical specification of the coking industry is officially released, the coking process of the iron and steel complex and the independent coking plant shall also apply for the permit in accordance with the relevant requirements of the coking industry.
2.2 Steel industry certification time requirements
The Beijing-Tianjin-Hebei and surrounding “2+26†cities, the Yangtze River Delta and the Pearl River Delta region should complete the application for permits by the end of 2017. Steel companies in other regions should complete the application for permits by the end of 2018. The specific application time schedule for each city is shown in the following table:
Note: According to the requirements of Article 21 of the Measures for the Administration of Pollution Discharge Permits, the provincial environmental protection department may determine the specific time for the pollutant discharge unit of the administrative region to apply for a pollutant discharge permit, that is, the deadline for issuing certificates for each place may be significantly advanced.
3 Steel industry needs to carry out work
3.1 Fill in the application form for sewage discharge permit
Enterprises need to fill in the platform (1) the basic situation of sewage units; (2) main products and production capacity; (3) main fuels and raw and auxiliary materials; (4) sewage nodes, pollutants and pollution control facilities; (5) air pollution Emission information - Emissions; (6) Air pollutant emissions information - Organized emissions information; (7) Air pollutant emissions information - Unorganized emissions information; (8) Air pollutant emissions information - Corporate air emissions total permits (9) Water pollutant discharge information - discharge port; (10) Water pollutant discharge information - Application for emission information; (11) Environmental management requirements - Self-monitoring requirements; (12) Environmental management requirements - Environmental management accounting requirements (13) Contents added by the local environmental protection department according to law; (14) 14 pages of relevant information such as related attachments. The information on the sewage permit application form is generated from this information and submitted to the environmental management department for strict review.
3.2 Prepare a self-monitoring plan that meets the specifications and the accounting information of the account that meets the requirements of the specification.
The enterprise shall prepare a self-monitoring plan and a required account record information form in accordance with the relevant requirements of the “Litter Discharge Permit Application and Issuance Technical Specification for the Steel Industryâ€. Both will become an important basis for enterprises to abide by the law in the future.
3.3 Preparation of the implementation report
Steel companies should prepare annual execution reports and quarterly implementation reports in accordance with the requirements of the regulations. The annual implementation report includes a) basic production information; b) compliance with laws and regulations; c) operation of pollution prevention facilities; d) self-monitoring; e) accounting management; f) actual emissions and compliance analysis; The payment of sewage charges (environmental protection tax); h) information disclosure; i) construction and operation of the internal environmental management system of the pollutant discharge unit; j) implementation of the contents of other pollutant discharge permits; and k) other issues that need to be explained; l) Conclusion; m) The annex to the drawing requires 13 items.
4 related suggestions
4.1 Enterprises must attach great importance to the preparation of the discharge permit declaration
The sewage permit is the “identity card†that every steel enterprise must hold, but the enterprise must not fill in the situation that is inconsistent with the actual situation of the enterprise in order to apply for the sewage permit. Because the license content listed on the pollutant discharge permit will be used as the basis for environmental law enforcement inspection, once the actual situation of the enterprise is found to be inconsistent with the sewage discharge permit, it will also lead to serious punishment such as “day penalty†and “revocation of sewage discharge permitâ€. Punishment. Therefore, iron and steel enterprises must attach great importance to the preparation of pollution discharge declarations, conduct comprehensive investigations on enterprises in accordance with relevant norms and standards, and eliminate environmental hazards in a timely manner.
In addition, there are many kinds of information that need to be submitted for the declaration of pollutant discharge permit. It is necessary to coordinate the resources of the whole enterprise to complete the declaration work. It is difficult for the environmental protection management personnel to complete the completion of the license independently. This requires the enterprise leadership to attach great importance to this work. Coordinate all resources of the company to assist environmental management personnel to fill in relevant information.
4.2 Carry out the declaration work as soon as possible
The reporting period for the discharge permit of the steel industry is tight and the task is heavy. The enterprise may have the situation that the application materials do not meet the specifications and need to be re-declared, and the enterprise needs to be responsible for the completeness and standardization of the information to be reported. Therefore, the application should be completed as soon as possible. Work, avoiding the peak period of the “getting together†and giving the environmental protection department permission audit personnel sufficient time for complete and standardized audits to ensure that the information is accurate and correct.
4.3 Select an authoritative third-party consulting agency
Faced with such heavy and complicated reporting work, most steel companies will choose third-party consulting organizations to help companies complete together. However, there are a large number of small and medium-sized enterprises on the market, and the professional quality of the practitioners is uneven. There is a lack of awareness of key factors such as production and sewage discharge of steel enterprises, insufficient understanding of technical requirements, and unclear application and review points. The situation will inevitably affect the key factors such as the accuracy of the calculation of the company's license amount and the integrity of the declaration information, affecting the enterprise to obtain the pollutant discharge permit on time; even if it helps the enterprise to obtain the sewage discharge permit, it will leave the “violation dischargeâ€. "The environmental hazard."
The Metallurgical Industry Planning and Research Institute, as one of the compiling units of the “Application for Pollution Discharge Permit and Legal Technical Specification for the Iron and Steel Industryâ€, has an in-depth understanding of the requirements of the regulation, the calculation method of the permit quantity, the platform declaration process and the key points of the environmental protection department. In addition, the planning institute's expert resources in the fields of production, energy and environmental protection have unique advantages for the license application of the steel industry, which is unmatched by most consulting organizations.
5 Conclusion
As a staff department of government agencies, a leader in industry development, a think tank for enterprise planning, and a full understanding of the pollution permit system and the environmental characteristics of steel itself, the Metallurgical Industry Planning and Research Institute can provide enterprises with a declaration from the discharge permit to the implementation report. The “package†service has been prepared to ensure the smooth completion of the application and assist the enterprise to meet the requirements of the environmental protection management department for the post-certification of the enterprise. The Planning Institute is looking forward to cooperating with you!
Welding elbow is shrimp "turn", it can be in the pipe or plate cutting after welding and become, and its specifications can be large. The number of nodes and the bending radius are determined by the producer. Welding bending is not very smooth, both of the bending radius is not large, generally about 1 times the diameter of the pipe.
Photo of Welded Bend:
Classification of welding elbow, according to its radius of curvature,
45 degree elbow
Can be divided into long radius elbow and short radius elbow. Long radius elbow refers to its radius of curvature is equal to 1.5 times the diameter of the tube, that is, R=1.5D. short radius elbow refers to its radius of curvature is equal to the outer diameter of the pipe, that is, R=D. D in the formula is the elbow diameter, and R is the radius of curvature. The most commonly used for 1.5D elbow, if not specified in the contract is 1D or 1.5D, then it is to optimize the use of 1.5D. GB/T12459-2005, GB/13401-2005, GB/T10752-1995., is the most commonly used executive standard in China.
Pressure grade classification
If according to the pressure level, there are about seventeen, and the United States pipe standards are the same, there are: Sch5s, Sch10s, Sch10, Sch20, Sch30, Sch40s, STD, Sch40, Sch60, Sch80s, XS,; Sch
180 degree welding elbow
80, Sch100, Sch120, Sch140, Sch160, XXS, which is the most commonly used STD and XS two. According to the angle of the elbow, 45 degree elbow, 90 degree elbow and 180. Species as a result of the elbow is a lot, when ordering, order is often taken as described in the following methods: such as "LR STD 90 8", said long radius, pressure rating for STD, 90o 8 "elbow; and as," 45 DEG SR XS 4 "said short radius, pressure rating for the XS and 45 degrees of 4" elbow. The above is about the classification of the elbow. Three links, there are two kinds of general. The diameter of the three equal diameter is equal to the diameter of three links, and both ends are the same diameter, but the diameter of the junction is different from that of the other two diameters. The method is as follows: for the equal diameter three links, such as the "T3" three general, the outer diameter is 3 inches and three inch diameter. For different diameter three links, such as the "T4 x 3.5 x three" means that the same diameter of four inch diameter of 3.5 inches of 4 inch diameter. The pressure level is the same as that of the elbow, and the range is the same.
This is the big head, method. Head size of said method is big diameter multiplied by the head diameter, for example "8 x 6" said big head with a diameter of 8 inches and head diameter is 6 inch head size.
Material division of welding elbow
Carbon steel: A234 WPB ASTM/ASME, WPC
Alloy: A234 WP 1-WP 12-WP ASTM/ASME 11-WP 22-WP 5-WP 91-WP911 15Mo3, 15CrMoV, 35CrMoV
Stainless steel: A403 WP 304-304L-304H-304LN-304N ASTM/ASME
A403 WP 316-316L-316H-316LN-316N-316Ti ASTM/ASME
A403 WP 321-321H ASTM/ASME A403 WP 347-347H ASTM/ASME
Low temperature steel: A402 WPL3-WPL ASTM/ASME 6
High performance steel: A860 WPHY 42-46-52-60-65-70 ASTM/ASME
structure
Welding elbow appearance
As the appearance of the welding elbow, then we say that the appearance of the welding elbow bar. Welding elbow appearance are fixed, of course, the general welding elbow appearance is according to different steel tube and to choose the different knowledge of welding elbow, so, in order to ensure the welding elbow appearance, usually Steel Pipe in the future, if not been yard rain washing off, then welding elbow after high temperature push general weld appearance of the elbow is appear out of the blue, of course, if the rain washed, we in high temperature after heating, heating welding elbow surface color are red. But overall, we guarantee tube is washed by the rain is very difficult, because is yard in summer is rain fog water washed, then push the system out of the welded elbow surface is red, too.
Technical requirement
Geometric dimensions include outside diameter, inside diameter and wall thickness. Also requires control
Radius of curvature. For example, the radius length is 1.5D, and the radius of curvature must be within the range of tolerances required. Due to these fittings, most used for welding, in order to improve the welding quality, end vehicles into the groove, leave a certain angle, side band, this requirement is quite strict, edge thick, at an angle of number and range of deviation provisions, geometric size than pipe much many. The surface quality and mechanical properties are basically the same as that of the tube. In order to facilitate welding steel, and the connecting pipe are the same. Fourth, is all the pipe fittings should be through the surface treatment, the inner and outer surface of the oxide scale through shot blasting, and then coated with anticorrosive paint. This is not only for export needs, in addition, in the country is to facilitate the transport to prevent rust oxidation, to do this work. Fifth is the packaging requirements, for small pipes, such as export, you need to do wooden, about 1 cubic meter, this provision in the case the number of elbows about not more than a ton, the standard allows the suit, large sets of small, but the total weight usually do not more than 1 ton. For large to a single package, like 24 "must be a single package. The other is labeled packaging, labeling is to indicate size, number, batch number, manufacturer trademark. In the pipe to be stamped on stamp, and attached to the packing list and the quality book file.
Welded Bend
Welded Bend Without Flanges,Welded Bend Pipe,Seamless Welded Bend,Welded Bend With Flanges
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