dzl series coal fired hot water boiler
You have to know the energy consumption of boiler problems (flue gas oxygen content) 1, reasons 1.1 boiler leakage problems may increase the furnace exit of excess air ratio. 1.2 preheater leakage large. 1.3 or coal boiler load changes, wind, dust adjustment is not timely. 1.4 auxiliary burner throttle opening degree command deviations. 1.5 burner type, operation mode unreasonable. 1.6 determine the optimum boiler oxygen value is not accurate. 1.7 oxygen inaccurate measurements. 2, measures to address the problem of operational measures 2.1 2.1.1 Check to see if the fire door, be sure to close tight. 2.1.2 appropriate control the furnace pressure, amount of air leakage reduction furnace. 2.1.3 boiler load, when the quality variation, adjusting one, two air flow to maintain the optimal oxygen amount boiler control value. 2.1.4 maintain the normal water level in the water seal bottom, bottom to reduce the amount of air leakage. 2.2 carry out leakage test and damper characteristics before and after the test boiler maintenance routine maintenance and testing 2.2.1. 2.2.2 adjusted to optimize the combustion tests, the optimum value of oxygen boilers. 2.2.3 regularly test the air preheater leakage, provide the basis for air leakage control. 2.2.4 Periodic calibration of oxygen measuring devices to ensure the accuracy of measurement. 2.2.5 timely check and adjust the position of Flue Gas baffle system (such as: an auxiliary burner class inspection throttle opening degree, etc.), the identify problems in time. 2.3 2.3.1 downtime and a wear liner release duct, deformation, cracks, wear inspection process. 2.3.2 flue pressure test done to check the tightness of handling the leaking part. 2.3.3 flue damper position, the opening degree of chipping, deformation, loose seal, astringent card check process. 2.3.4 corrected assist air and the fuel damper flap opening position. 2.3.5 boiler, air preheater Leakage leak plugging. 126.96.36.199 boiler: furnace wall, roof sealing, see the fire holes, Manhole, bottom sealing plate is deformed, corrosion and tank leakage inspection process. 188.8.131.52 air preheater seal gap measurement adjustment, the deformation of the sector plate and curved plate, wear control check, the sealing gap adjustment mechanism inspection process. 2.4 2.4.1 transformation and a duct liner wear loose, deformation, cracks, wear inspection process, replacement, and a bluff body concentrator ceramic sheet, and silicon carbide wear measures. 2.4.2 boiler, air preheater, leakage leak plugging treatment. 2.4.3 the internal structure and the sealing means to transform the preheater, reducing air leakage. 2.4.4 boiler, flue joints and other advanced seal plastic material, to reduce leakage.
Greater than 65t / h industrial boiler of what air pollutant emission standards should be executed? A: The State Environmental Protection Administration, Central Division-standard  No. 012 document pointed out that the emergence of a small number of parameters currently higher than GB1921-80 "industrial steam boiler parameters Series" and GB3166-82 "dzl series coal fired hot water boiler parameters Series" layer burning, stoker boiler, regardless of its use Zanan GB1327-91 execution. Therefore> 65t / h or more (except coal, circulating fluidized bed, and fuel, gas fired boilers) industrial boilers should be performed "boiler air pollutant emission standards."
90 t/h coal fired circulation fluidized bed boiler is a natural circulation water tube boiler with double cross drums. Fuel is sent to the furnace from stoker and it is mixed with air from equal pressure air chamber, the flow gas produced from it burned goes upside into horizontal cyclone separator.
It is understood that in order to successfully promote the transformation and development of traditional coal chemical industry, January 1, 2019, letter to the Office of Henan Province workers released a special action program (hereinafter referred to as the "Program"), to promote pollution prevention campaign of Henan Province, three-year action implementation of the scheme, to speed up the traditional coal chemical industry (ammonia, methanol) industry green transformation, to achieve high-quality development. "Program" details are as follows.
First, the key tasks
1, and strictly control new capacity. Adherence to the red line capacity, traditional coal chemical enterprises prohibit new construction, new capacity expansion projects alone, is strictly prohibited without permission around the building does not meet the requirements of the industrial layout plan of coal chemical project in principle. The province's coal chemical projects and intensive clean-up, but according to the specified time limit has been approved to start construction of the project in principle, to construction, relocation and renovation projects must be upgraded into the base or campus planning. By 2020, the chemical industry out of the fixed bed coal gasifier intermittent exit single set of devices 300,000 tons / year of synthetic ammonia production capacity.
2, increase the relocation and reconstruction efforts. Further promote the densely populated towns of dangerous chemicals production enterprises and urban built-up areas heavily polluting industrial relocation of enterprises, the implementation of an intensive investigation, the establishment of management accounting, according to "a business a policy" during mode classification advance. Priority to promoting the urban area of coal chemical industry relocation, conversion or quit, not in the urban area but not in the business park to gradually move the park, according to the specified execution be discontinued or phased out. Close to exit the business to achieve the "two off three clear" (cut industrial water, electricity, removal of raw materials, products, production equipment), in situ transformation of the company to implement the upgrading of the standard industry benchmark, off-site relocation of enterprises to According to large-scale, modern principles move into the province for involving chemical industry gathering area.
3, Green transformation. Before the end of 2019, coal chemical enterprises fully completed VOCs governance. And comprehensively promote the chemical industry equipment static and dynamic sealing points, storage, handling, waste water systems, unorganized process emissions and non-normal operating conditions and other root causes of remediation. In accordance with national requirements, the timely completion of the coal chemical industry waste discharge permit issued by the work, companies must comply with the behavior of the sewage discharge permit clear conditions, various types of environmental inspection found violations, strictly and severely investigated and dealt with as soon as possible in place.
Second, the organization and implementation
1, roles and responsibilities. Relevant provincial jurisdiction over municipal government on the development of local coal chemical industry restructuring and overall responsibility, strengthen organizational leadership, with local conditions, the development of coal chemical industry restructuring and development program implementation, implementation tasks initiatives. Coal chemical industry is the main responsibility for the implementation of the restructuring and development, to strictly implement the main responsibility for production safety and environmental protection, the implementation of the relocation of the green transformation. Provincial Industry and Information Technology Department, Development and Reform Commission, the ecological environment, the Office of Emergency Management and other provincial departments according to the division of responsibilities, strengthen guidance and improve relevant policies and measures.
2, strictly implement the policy. Comprehensive use of market mechanisms, economic instruments, legal and necessary administrative means to approach, to promote enterprise restructuring and development. Strict implementation of China's industrial policy, strictly enforce the standards of environmental protection, quality, energy consumption, safety and technology. Relocation and reconstruction of urban population centers dangerous chemicals production enterprises and urban built-up area of relocation and reconstruction project focused on heavy polluting industrial enterprises, shall be given support in terms of fiscal policy, tax incentives, financial support, land policies.
3, strengthen supervision and accountability. Strengthen supervision of new capacity alone, without approval of the establishment of Chemical Industry Park, unauthorized implementation does not meet the industrial layout planning requirements of coal chemical projects, in violation of the registration and management of hazardous chemicals and construction projects "three simultaneous" (also designed, constructed, and concurrent use of illegal activities) system, etc., must be severely accountable accountability.