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chain grate industrial boiler in building materials industry

Jilin Province is located in northeast China, colder winter. Jilin Province is the autumn and winter air pollution problems are most acute period is the peak period of fog and haze. To reduce the frequency of occurrence of fog and haze, to reduce emissions of air pollution, according to "implement the central Jilin Province Environmental Protection Inspector feedback reform program", Jilin cities to carry out the 2018 autumn and winter special law enforcement inspection of non-electric coal-fired chain grate industrial boiler in building materials industrys. Specific implementation of the program as follows.

2018 autumn and winter non-electric coal-fired boiler special law enforcement inspection action plan

First, the objectives

Through the "2018 autumn and winter special law enforcement inspection of non-electric boiler coal" action to further increase the intensity of emissions of air pollutants such as excessive penalties for violations combat, urge local governments and environmental protection departments to effectively implement the "Jilin province to implement the central environmental protection inspector feedback reform program, "Forced enterprises to speed up 10 tons of steam coal-fired boilers small and out of more than 20 tons of steam and non-electric coal-fired boiler pollution control facilities upgrade progress to ensure stable discharge standards.

Second, the scope of the inspection

Cities (prefectures) and Changbai Mountain Administrative Committee, Meihekou, Gongzhuling City, Hunchun.

Third, check the time

2018 Nian September 1 to November 30.

Fourth, inspection methods and content

Cities (prefectures) and counties under the jurisdiction of Changbai Mountain Administrative Committee to set up inspection teams to units in the area to take a cross peer review mode, Meihekou, Gongzhuling City, Hunchun to self-oriented.

The principle of mutual cross-check on the environmental violations found, the city's environmental protection departments at all levels in accordance with "should check to make investigation, should make a fine penalty, should be moved to make-shift" of errant given time out of the boiler, not dust removal facilities renovation no construction of desulphurization facilities are not required to install, networking, using automatic monitoring equipment, excessive discharge of pollutants and other acts take full advantage of "environmental law" and supporting measures to implement daily basis penalties, limited production shutdown, sequestration, administrative detention measures to deal with.

Focus on examination of the following:

(A) the progress of 10 tons of steam coal-fired boilers little out of work. According to "implement the central Jilin Province Environmental Protection Inspector feedback reform program," according to the time limit set by local governments, the progress of the phase-out of coal-fired boiler 10 tons of steam since 2014, the province's illegal 1570 newly registered units to be checked.

(B) more than 20 tons of steam coal-fired boiler non-electric dust removal, desulfurization facilities upgrade progress, automatic monitoring equipment installation, networking, usage. By ShengTing 6, July scheduling, the current to complete the rectification stage 717, stage 108 does not start the rectification, the rectification is 277, automatic monitoring equipment table 140 is not installed, the slow progress of the rectification. To complete the transformation around the boiler on-site verification, focusing on inspection facilities dust removal, desulfurization facilities upgrading and installation of automatic monitoring equipment, networking, usage. Percentage being modified, check the current progress of the major transformation of the situation, progress of the project, the time frame for completion, safeguard measures taken, it requires the use of boiler units issued commitments. For failure to start the transformation, to identify the main reason for not starting. If we do not transform the way in which the pin number to take all necessary construction and renovation tasks must be completed in accordance with the requirements of 30 September.

(C) boiler emissions standards. To install automatic monitoring equipment to monitor them than to confirm the validity of the data. For failure to require the installation of automatic monitoring equipment, shall be punished in accordance with relevant laws and regulations, at the same time supervisory monitoring, to determine whether to achieve a stable discharge standards.

Fall and winter heating season is the peak of Jilin Province, to ensure the normal heating units, we must also pay attention to boiler problems in the process of environmental protection. For the high-emission, high-polluting coal-fired boiler and other fuel boiler, to be banned or corrective action.

Low nitrogen gas chain grate industrial boiler in building materials industry is based on the basis of people's living standards improve on the introduction of more energy efficient, comfortable and convenient, low-emission environmentally friendly energy device. Coverage gradually increase the use of low nitrogen boiler, reducing the emissions of air pollution, China's overall focus on the core work of air pollution control, across the board.

Steam and hot water chain grate industrial boiler in building materials industry quality water hydraulic energy converter Henan fast boiler's steam introduce small series with the hot water boiler water quality and hydraulic energy converter can reduce the power loss of the main hot water boiler steam requirements are as follows: When a boiler rated evaporation greater than or equal 6t / h should be oxygen, less than the rated evaporation 6t / h of localized corrosion such as found in boiler feed water deaerator measures should be taken, with respect to the steam turbine for steam boiler feedwater oxygen content should be less than equal to 0.05mg / L . 2, as determined when the dissolved solids is difficult, the conductivity measurement method may be employed or chloride ions (C1) controlled indirectly, but with the conductivity or dissolved solids and a ratio of a chloride ion (of Cl-) should be based on test determine. And should be regularly re-examination and revision of this ratio relationship. 3, the structure of all-welded boiler may control the relative alkalinity. 4, rated evaporation amount is smaller than 2t / h, and less than the rated steam pressure of steam boilers and hot water boilers soft drinks dual equal to 1.0MPa (such as steam, water quality no special requirements) may also be pot-treatment. But we must strengthen the supervision of scaling, corrosion and water steam hot water boiler, earnestly dosing, sewage and cleaning work. Thus, subject to the following two points: a, by making additional agent for pH control in the water pan 10 to 12. B, equal to 4.2MW power greater than the rated pressure hot water boiler feed water should be oxygen, less than the rated power of 4.2MW pressure hot water boilers and pressure hot water boiler feed water should be oxygen. 4, a direct current (cross-flow) outer pot boiler feed water should be used for chemical water treatment, the water quality in Table 1 is greater than the rated steam pressure is 1.6Mpa, 2.5Mpa or less standard execution. Hydraulic energy conversion can reduce power loss First of all, from the power source - to consider aspects of the pump, taking into account the diversity of working conditions of actuators, sometimes the system needs high flow, low pressure; sometimes require small flow and high pressure. Therefore, selecting appropriate limited pressure variable pump, since this type of pump flow varies with system pressure. When the system pressure decreases, the flow rate is relatively large, to meet the rapid traverse actuator. When the system pressure is increased and a corresponding decrease in flow rate, to meet the working stroke of the actuator. This will not only meet the job requirements actuators, but also make the reasonable power consumption. Secondly, if the actuator has requested the governor, then in the choice of the governor circuit, it is necessary to meet the requirements of speed, but also to minimize power loss. Common loop speed control are: control Circuits, Volume Timing circuit, volume control Circuits. Wherein the power throttle speed circuit loss is large, low-speed stability. Speed ​​and volume of the circuit neither overflow losses, no throttling losses, high efficiency, but the difference between the low-speed stability. To satisfy both requirements, can be differential pressure variable pump volume and composition of the throttle control Circuits, and the pressure difference across the throttle valve as small as possible to reduce pressure losses.

Brief Introduction of fuel gas-fired chain grate industrial boiler in building materials industrys of steam condensate heat recovery boiler flue gas volume of the component is generally 15% to 19%, oil-fired boiler flue gas water vapor content of 10% to 12%, much higher than the coal-fired boiler generating water vapor content of the flue gas below 6%. Currently the thermal efficiency of the boiler are low calorific value calculation, although nominally higher thermal efficiency, but because of high natural gas, low calorific value difference of about 10%, the actual energy efficiency to be increased. To take full advantage of energy, reduce exhaust gas temperature, flue gas heat recovery physical, when the wall surface of the heat exchanger flue gas temperature below the dew point temperature, water vapor in the flue gas will be condensed, releases latent heat, low and high 10% calorific value difference can be effectively utilized. As we all know, the thermal efficiency of the boiler low calorific value fuel is calculated without considering the heat loss of latent heat of vaporization of fuel in the high heating value. Thus the thermal efficiency of the conventional boiler generally only 87% to 91%. Waste heat recovery boiler is condensed, to which the exhaust gas temperature is reduced to 50 ~ 70 ℃, full recovery of the latent heat of condensation and sensible heat in the flue gas water vapor. Condensing technology as a new type of environmentally friendly energy-saving technology, its principle is not very complicated, simple summary of what is recovered by condensation equipment hidden in the flue gas and water vapor in the latent heat. In conventional boilers, the exhaust gas temperature is generally 160 ~ 250 ℃, water vapor in the flue gas is still in a superheated state, it can not be condensed into liquid water and release latent heat of vaporization.

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