7results about "Flue gas purification components" patented technology

According to the environment-friendly flue gas waste heat boiler, an L-shaped flue gas pipeline is adopted, heat exchange and denitration equipment is arranged in order according to the flue gas temperature gradient, high-temperature flue gas denitration pretreatment and high-grade heat recovery are completed through a horizontal section, medium-low temperature waste heat deep utilization is achieved through a vertical section, waste heat resources are excavated to the maximum extent, and the heat efficiency of the boiler is improved. The ammonia spraying grid and the SCR catalyst module are integrated, the reaction temperature is accurately controlled in cooperation with the temperature regulator, it is ensured that ammonia water and flue gas are fully mixed, the denitration reaction is efficiently conducted, and the requirement for ultralow emission of nitric oxide is met. In the steam-water system, a steam drum, a water feeding pump and a deaerator are cooperatively operated, the deaerator removes dissolved oxygen in condensed water to guarantee the water supply quality, the water feeding pump conveys water to a coal economizer in a pressurized mode, and the steam drum separates a steam-water mixture; meanwhile, the water spraying desuperheater is matched with the thermolator, temperature control is accurate, different load working conditions are adapted, and stable output of steam is ensured.

The invention discloses a large coal-fired power plant boiler unit clean construction technology, and particularly relates to the field of coal-fired power plant boiler units, the large coal-fired power plant boiler unit clean construction technology comprises an unloading module which is particularly an unloading chamber and is used for unloading fire coal raw materials; the stirring module is specifically a stirring chamber and is used for stirring and crushing fire coal raw materials; the dust removal module is specifically dust removal equipment and is used for absorbing coal dust in the discharging chamber and the stirring chamber; the mounting module is specifically a mounting chamber and is used for mounting and assembling the boiler assembly; the boiler module is specifically a boiler chamber and is used for providing energy for combustion of fire coal raw materials for power generation; and the treatment module is specifically a treatment pond and is used for filtering wastewater generated by working of the boiler. A traditional extensive construction mode is abandoned, and an advanced closed dust collecting system is adopted. Efficient dust collection equipment is installed at all dust raising points of a construction site, such as a material loading and unloading area and a stirring area, dust generated in the construction process is collected in time, and it is avoided that the dust is diffused into the surrounding atmospheric environment.

The invention relates to the technical field of steam boilers, in particular to a floating type semi-fluidized combustion wns biomass steam boiler. Comprising a container room and a horizontal internal combustion boiler body arranged in the container room, and the horizontal internal combustion boiler body comprises a boiler cavity and a combustion mechanism arranged below the boiler cavity. The combustion mechanism comprises a boiler cavity and a floating type semi-fluidized combustion assembly arranged in the boiler cavity, a multi-pass smoke return structure is arranged at the bottom end of the boiler cavity, and high-temperature smoke in the boiler cavity is exhausted outwards after passing through the multi-pass smoke return structure. The floating type semi-fluidized combustion assembly comprises a fluidized bed formed by pouring high-temperature-resistant castable, a channel is vertically arranged on the fluidized bed, a hood is arranged at the top end of the channel, and materials above the fluidized bed are in a semi-fluidized state through cooperation of a material spreading mechanism and a high-pressure cavity. The integration degree is high, the burn-off rate of fuel is high, and the heat efficiency of the boiler is effectively improved.

This invention relates to a biomass-coal-fired boiler coupled power generation system and a method for calculating its power generation. The system includes a biomass furnace, a cyclone dust collector, a high-temperature flue gas measuring device, a pulverized coal furnace, and an air preheater, connected in sequence. The pulverized coal furnace includes a main burner, a high-temperature flue gas burner, and a separate burnout air burner. The high-temperature flue gas burner is arranged between the main burner and the separate burnout air burner; or the high-temperature flue gas burner is arranged in the main burner area. The biomass power generation of the coupled power generation system is P, representing the heat generated by biomass combustion. b =Q / Q b *P e ;P e Q represents the total power generation of the biomass-coal-fired boiler coupled power generation system; Q is the heat absorbed by the high-temperature flue gas after biomass combustion in the pulverized coal furnace; Q b This invention relates to a simple thermal system where biomass combustion and coal combustion occur in two separate furnaces, reducing the coupling between the two combustion processes and improving the overall system's operational flexibility.

The application discloses an environmental-friendly natural gas boiler with flue gas backflow supplementary heating, which comprises a natural gas boiler body, a cleaning mechanism, a drag plate and a cleaning ring. The bottom of the natural gas boiler body is provided with a combustion mechanism, the top of the combustion mechanism is installed with a heating water tank, and the left side of the combustion mechanism is connected with the cleaning mechanism through an exhaust pipe. The environmental-friendly natural gas boiler with flue gas backflow supplementary heating is provided with the cleaning mechanism on the top of the natural gas boiler body, so that the flue gas discharged from the exhaust port can be filtered conveniently, the inside of the cleaning mechanism is provided with a cleaning plate, the surface of the second filter screen can be cleaned conveniently, the blockage of the second filter screen is avoided, the filtering effect is improved, then the filtered flue gas is conveyed into the combustion mechanism through an insulation pipe, so that the flue gas can be heated, and the flue gas can be utilized again.

In some aspects, a computer-implemented method of reducing a fouling rate in a recovery boiler system is provided. A computing device receives boiler operating information for a period of time. The boiler operating information includes boiler operating parameters and a fouling rate for the period of time. The boiler operating parameters include one or more boiler input parameters. The computing device performs a regression analysis to determine at least one correlation between the boiler operating parameters and the fouling rate. The computing device causes at least one boiler input parameter to be adjusted in accordance with the at least one correlation to minimize the fouling rate. In some aspects, a system configured to perform such a method is provided. In some aspects, a computer-readable medium having instructions stored thereon for causing a computing device to perform such a method is provided.

To reduce a fouling rate in a recovery boiler system.SOLUTION: An analytical computing device receives boiler operating information including a fouling rate measured by a fouling sensor, which is a weight sensor configured to generate a value indicating a weight of a heat exchange element of a boiler, and boiler operating parameters; performs a regression analysis to determine at least one correlation to minimize the fouling rate; and transmits at least one adjusted boiler input parameter to a boiler controller.SELECTED DRAWING: Figure 1