11results about How to "Guaranteed denitrification effect" patented technology

The invention discloses an intelligent low-carbon treatment and recycling system for rainwater and sewage. The system comprises a biological retention module used for collecting and treating rainwater to obtain treated rainwater; the numerical control drainage module is used for collecting oxidation-reduction potential data and pH value data of the processed rainwater as environmental data to be transmitted to the control module, and discharging the processed rainwater in a preset duration based on a first control signal sent by the control module; the rainwater and sewage collecting module is used for storing the discharged treated rainwater and maintaining the water storage amount within a preset range; the irrigation module is used for collecting soil humidity data of the bioretention module and transmitting the soil humidity data to the control module, and extracting stored water in the rainwater and sewage collection module based on a second control signal sent by the control unit to irrigate the bioretention module; the control module is used for receiving the environment data and performing double judgment, sending a first control signal when a preset condition is met, receiving the soil humidity data, and sending a second control signal when the preset condition is met. The stable and efficient low-carbon treatment and recycling of the rain sewage are realized.

The utility model provides flue gas desulfurization and denitrification equipment, which belongs to the technical field of waste rubber and plastic treatment and comprises a dust remover, a heat exchanger, a flue gas main pipeline, a denitrification reactor, a flue gas auxiliary pipeline and a desulfurization reactor. The dust remover is connected with a flue gas input pipeline; the heat exchanger is connected with the deduster; the gas inlet end of the flue gas main pipeline is connected with the gas outlet ends of the dust remover and the heat exchanger; the gas inlet end of the denitration reactor is connected with the gas outlet end of the flue gas main pipeline; the flue gas auxiliary pipeline is connected with the flue gas main pipeline and the denitration reactor in parallel; and the gas inlet end of the desulfurization reactor is connected with the gas outlet end of the denitration reactor. The flue gas desulfurization and denitrification device solves the problem of treatment of sulfur-containing compounds and nitrogen-containing compounds in flue gas generated by thermal cracking of waste tires, and has the characteristics of good desulfurization and denitrification effects and high safety.

The utility model discloses a kind of SCR denitration devices, belong to solve the problem of scratch to catalyst in the process of ash removal, solve the problem of scratch to catalyst in the process of ash removal, the technical scheme of solving this problem mainly includes rotary kiln, preheater, ammonia injection system and SCR reaction tower, preheater is located above rotary kiln, SCR reaction tower is equipped with flue gas pipeline between preheater, SCR reaction tower is equipped with mounting bracket, SCR reaction tower outside is equipped with fixing frame, mounting bracket is equipped with ash removal pipe, ash removal pipe is equipped with ash removal harrow, ash removal harrow is equipped with nozzle, fixing frame is equipped with feeding mechanism and air blower, one end of ash removal pipe extends to SCR reaction tower outside and is connected with feeding mechanism, feeding mechanism drives ash removal harrow reciprocating motion by ash removal pipe, ash removal pipe is equipped with anti-blocking fan to prevent nozzle from entering dust and being blocked during ash removal harrow retraction process.The utility model mainly guarantees ash removal effect while reducing damage to catalyst, and then ensure denitration effect.

The invention discloses a control method for precise ammonia spraying partition leveling of a power plant SCR denitration system. The control method comprises the steps that the NOx concentration value of an outlet of each partition is detected; the NOx concentration value of each partition outlet is compared with a preset threshold value, if the absolute value of the difference value between the NOx concentration value and the preset threshold value is higher than the leveling precision, the adjusting valve corresponding to the partition outlet is a main adjusting valve, and otherwise, the adjusting valve is an auxiliary adjusting valve; the formula of the adjustment increment of the main adjustment valve is as follows: (the NOx concentration value of the valve partition outlet-the preset threshold value) + (the current unit load / unit rated load * the valve opening degree and flux linear coefficient; the secondary adjustment valve is adjusted based on a distance to the primary adjustment valve. According to the method, the total amount of supplied ammonia is reasonably distributed by controlling the opening degree of each valve in the partition through a main and auxiliary adjustment mode, and the ammonia spraying amount of each area of the SCR denitration system is accurately controlled, so that ammonia is supplied to each denitration area as required, and finally, partition leveling of the denitration system is realized.

The utility model relates to denitration equipment technical field, proposes a kind of SNCR high molecule intelligent denitration equipment, including denitration equipment main part, the middle part of denitration equipment main part inner wall is provided with filter mechanism, still include mixing box, transmission rod, disturbance board, linkage mechanism, air intake pipeline, barrier deceleration net and spray nozzle, mixing box is set in the top of denitration equipment main part inner wall, the downside of mixing box is communicated with the upside of filter mechanism by connecting pipeline, one side of mixing box inner wall is rotatable with two transmission rods, disturbance board is sleeved on transmission rod, and can be deflected with transmission rod as center. Through the above technical scheme, for solving the mixing mode structure of reducing agent and flue gas in prior art SNCR high molecule intelligent denitration equipment is relatively simple, flue gas flows rapidly in equipment, so that the contact time of reducing agent and flue gas is shorter, leading to the problem that reducing agent is difficult to mix with flue gas fully.

The utility model relates to a boiler denitration device technical field, and disclose a kind of for the full load denitration device of boiler depth peak shaving, including main flue, and the one side of main flue is provided with the mixing assembly for to flue gas conveying mixture, and mixing assembly includes the air inlet pipe and processing frame of being arranged in the one side of main flue, and the one end of main flue is provided with extension frame, and extension frame inside is provided with guide slot, and the one end of extension frame is provided with cavity, and the inside of cavity is provided with connecting shaft, and the outside of connecting shaft is provided with fan leaf;Cavity inner wall is provided with temperature sensor, and the outside of main flue is provided with bypass pipe, and the inside of bypass pipe is provided with control valve.The utility model is mixed by being contacted fully to high-temperature flue gas and low-temperature flue gas, so that the temperature in flue gas is evenly distributed, improve the consistency of flue gas temperature, ensure catalyst use effect, and it is convenient to detect flue gas temperature and adjust high-temperature flue gas and low-temperature flue gas proportion to make it adapt to catalyst action temperature.

The present invention discloses an enhanced denitrification artificial wetland system and a construction method thereof, comprising an artificial wetland pool, a water inlet pool is provided on one side of the artificial wetland pool, a connected drainage pipe is provided at the bottom of the other side, wetland plants are planted on the artificial wetland pool, an assembly slot is provided on the artificial wetland pool, a double-axis rotating device, a water supply pipe and a high-pressure pump body are provided in the assembly slot, one end of the water supply pipe extends into the water inlet pool, and the other end is connected to an oxygenation spray assembly, the high-pressure pump body is provided on the water supply pipe and the impeller of the high-pressure pump body is connected to the first output end of the double-axis rotating device, and a reciprocating moving part is provided at the bottom of the oxygenation spray assembly. The present invention allows the water source to be treated to be sprayed from top to bottom on the artificial wetland pool, on the one hand, the oxygen content in the water source is increased, and on the other hand, the oxygenation spray assembly reciprocates, so that the wetland plants can be fully in contact with the water source to be treated, ensuring the denitrification effect of the wetland plants on the water source.

This invention discloses a low-load denitrification-deep peak-shaving system based on molten salt thermal energy storage and its operating method. The system includes a coal-fired power generation system and a molten salt thermal energy storage system. The coal-fired power generation system includes a boiler, a denitrification device, a deaerator, and an industrial steam header. The molten salt thermal energy storage system includes a first flue gas heating path, a second flue gas heating path, and a molten salt thermal energy storage path. The coal-fired power generation system provides electricity to the molten salt thermal energy storage path, high-temperature molten salt provides a heat source for the first flue gas heating path, and high-temperature steam provides a heat source for the second flue gas heating path. The high-temperature steam is obtained by heating condensate with high-temperature molten salt. This invention adds two methods of heating flue gas for energy release: high-temperature molten salt and high-temperature steam. This avoids the imbalance between the input and output energy of the molten salt thermal energy storage system when the steam demand is insufficient, and reduces the cost of the thermal energy storage molten salt and investment. This invention uses molten salt energy storage to increase the flue gas temperature, ensuring the denitrification capability of the unit during low-load operation.

The present application relates to the technical field of flue gas purification, and discloses a high-temperature flue gas dust removal and denitration device, which comprises a flue gas inlet section, a dust removal and denitration reaction zone, an inertial collision dust removal zone, a clean flue gas chamber and a flue gas outlet section. The arrangement of the dust removal and denitration reaction zone, the inertial collision dust removal zone, the clean flue gas chamber and the flue gas outlet section meets the processing path of the flue gas entering from the flue gas inlet section, i.e. the flue gas enters the dust removal and denitration reaction zone from the flue gas inlet section, is subjected to primary treatment in the dust removal and denitration reaction zone, enters the inertial collision dust removal zone, is subjected to collision and dust removal in the inertial collision dust removal zone, is indirectly returned to the dust removal and denitration reaction zone, is subjected to secondary treatment in the dust removal and denitration reaction zone, enters the clean flue gas chamber, and is finally discharged from the clean flue gas chamber to the outside from the flue gas outlet section. The present application can make the flue gas treatment pass through three-stage dust removal and two-stage denitration by setting the flue gas processing path, and has the advantages of excellent dust removal and denitration effect and saving of production cost required by enterprises.

The present invention relates to the field of chemical smelting technology, and specifically to a row-type light-burned magnesium oxide calcining system, including crushing equipment, calcining furnace, dust removal equipment and denitration equipment; the denitration equipment includes a rotating shell and a catalytic component; a channel for flue gas flow is provided in the rotating shell; a plurality of catalytic components are provided, which are arranged in sequence along the extension direction of the channel; each catalytic component includes a catalytic plate and a guide plate arranged in sequence, and the catalytic plate is located on the air inlet side of the guide plate; the catalytic plate includes an outer ring part, an intermediate ring and a catalytic part arranged in sequence from the outside to the inside; the guide plate includes a mounting ring and an inner plate arranged in sequence from the outside to the inside and rotatably matched. A first through hole and a second through hole are respectively provided on the catalytic plate and the guide plate of each catalytic component, which are staggered from each other, and the positions of the first through hole and the second through hole at different positions of the catalytic component are changed, so that the flue gas passes through the catalytic plate in different directions when the catalytic component is in different positions, thereby improving the utilization efficiency of the catalyst in the catalytic part.

The invention discloses a tailwater denitrification device, which belongs to the technical field of tailwater treatment, and includes a vertical flow artificial wetland and a denitrification reactor. The vertical flow artificial wetland includes a carrying container, which is divided into an upper chamber and a lower chamber by a perforated partition plate. A planting soil layer, an iron-carbon filler layer and a zeolite particle layer are sequentially arranged in the upper chamber, a micro-electrolysis device is buried in the zeolite particle layer, a wetland water inlet and a wetland water outlet are arranged in the upper chamber, and a wetland mud outlet is arranged at the bottom of the lower chamber; the denitrification reactor includes an outer cylinder and an inner cylinder; an outer cylinder water inlet and an outer cylinder mud outlet are arranged on the outer cylinder, an outer cylinder water outlet is arranged between the top of the outer cylinder and the top of the inner cylinder, an inner cylinder water inlet, an inner cylinder water outlet and an inner cylinder mud outlet are arranged on the inner cylinder, and a perforated cover plate is installed at the inner cylinder water inlet. The vertical flow artificial wetland and the denitrification reactor are synergistically treated, which can significantly improve the denitrification effect, and promote the small volume and short purification cycle of the vertical flow artificial wetland and the denitrification reactor.