38results about How to "Increase flue gas temperature" patented technology

The invention relates to a denitration technology, and discloses a denitration device with an economizer re-circulating system for a boiler. The temperature of a water side of an economizer is raised by using the economizer re-circulating system, so that the flue gas temperature of an outlet of the economizer can be raised under the low-load working condition, and requirements on lowermost ammonia spraying under the full-load working condition are met; the flow of the water side of the economizer keeps unchanged or is slightly increased under the control of a circulating pump of the re-circulating system, so that the phenomenon of boiling on the water side of the economizer is avoided, and the economizer can operate safely and stably.

The invention relates to a multi-product cleaning and producing method comprehensive utilization; coal carbon production, power generation by burning coal gangue, cement production, power generation by cement afterheat and wall material production technology are combined in a same industrial symbiont by using industrial symbiosis; optimal configuration between working procedures is realized; processing procedures of raw materials are converted into processing working procedures capable of separating raw materialsand fuels into different material flows and power flows which have different transport directions; mutually beneficial relationship is established between working procedures; a predetermined downstream working procedure is directly capable of digesting ''pollutant'' of an upstream working procedure; each working procedure utilizes different raw material component and different gradient energy source so as to produce multiple products; so that energy and matter flow in a multi-channel manner; and a little-pollution multi-prduct cleaning and producing technology is formed.

The invention relates to a system for preparing cement raw materials from chalk, and in particular to a process system for preparing raw materials from fine powdery chalk materials with high water content. The system comprises a kiln system cooling machine, a draught fan, a hot air furnace, a kiln system preheater, a drying crushing machine, a powder grinding and powder selecting device and a dust collector. In the technical scheme, according to the physical properties of chalk and auxiliary raw materials, the drying and scattering function of the drying crushing machine and the efficient powder grinding function of the powder grinding device are sufficiently achieved; the efficient drying and scattering of the chalk can be realized; meanwhile, auxiliary blocky materials are crushed and dried; the preparation process of high efficiency and low consumption of the raw materials are realized; the system belongs to an energy-saving system for preparing the raw materials from the chalk.

The invention provides a miniature heat regeneration diffusion type uniform combustion device with a combustion room shrunk gradually. The miniature heat regeneration diffusion type uniform combustion device comprises an ignition device, an outer sleeve, an inner sleeve and an upper panel. The inner sleeve is located in the outer sleeve. The combustion room is arranged in the inner sleeve. A preheating and premixing cavity is formed between the inner sleeve and the outer sleeve. The upper panel is arranged at the top end of the outer sleeve. A porous bottom plate is arranged at the lower end of the inner sleeve. The circumferential wall of the lower portion of the inner sleeve is a porous wall. An upper end opening of the inner sleeve serves as an exhaust opening. The combustion room communicates with the preheating and premixing cavity through the porous wall and the porous bottom plate. A plurality of air inlets and gas inlets are evenly distributed in the top end of the side wall of the outer sleeve in the circumferential direction. The combustion room of the miniature heat regeneration diffusion type uniform combustion device is in a reversely-buckled cylindrical inwards-concave horn shape so that fuel in the combustion room can be diffused, and inner combustion and temperature field distribution can be more uniform. According to the miniature heat regeneration diffusion type uniform combustion device, smoke waste heat is utilized, meanwhile, a porous material is adopted for multi-face air feeding, combustion is strengthened, a temperature field is more uniform, and therefore the power of the device is improved.

The invention discloses a flue gas desulfurization system and a desulfurization method thereof. The desulfurization system includes a dust removal booster system, a wet desulfurization system and a dry desulfurization system; The inlet end of the desulfurization system is connected; the outlet end of the wet desulfurization system is connected to the inlet end of the dry desulfurization system. Using the invention to perform desulfurization treatment on sulfur-containing flue gas can synergistically remove various pollutants, and fundamentally eliminate environmental problems caused by wet chimney discharge.

The invention relates to the technical field of sampling, detection and analysis of gas and discloses a flue gas sampling device. For solving the problems of short service life and the like of a sampling pump, the invention provides the following technical scheme. The flue gas sampling device is characterized in that a driving mechanism comprises a gas source machine (104) for providing a gas source and a jet injector (105) for driving flue gas to flow in a drainage manner, wherein air current provided by the gas source machine (104) enters a spray nozzle (105b) from top to bottom and is sprayed out at the lower retracted part of the spray nozzle (105b) so as to form a vacuum trend, thereby attracting sampling gas to enter from the second gas inlet end of the jet injector (105); and two strands of air current is mixed in a hollow-out cavity and is exhausted to the atmosphere through the gas outlet end of the jet injector (105). The invention has the benefits that the jet injector is provided with a movable component without the maintenance, repair and replacement and can work reliably for a long term; the pressure and the flow speed of the sampling gas are stable; the phenomenon that fine particles are blocked can be avoided; and the jet injector made of all metal can bear high temperature of the flue gas.