30 results about "Solid fuel fire" patented technology

A thermally efficiency regenerative air preheater 250 extracts more thermal energy from the flue gas exiting a solid fuel fired furnace 26 by employing an alkaline injection system 276. This mitigates acid fouling by selectively injecting different sized alkaline particles 275 into the air preheater 250. Small particles provide nucleation sites for condensation and neutralization of acid vapors. Large particles are injected to contact and selectively adhere to the heat exchange elements 542 and neutralize liquid acid that condenses there. When the deposit accumulation exceeds a threshold, the apparatus generates and utilizes a higher relative percentage of large particles. Similarly, a larger relative percentage of small particles are used in other cases. Mitigation of the fouling conditions permits the redesign of the air preheater 250 to achieve the transfer of more heat from the flue resulting in a lower flue gas outlet temperature without excessive fouling.

The invention provides a device for detecting solid fuel combustion products at different space positions on line. The combustion products at different axial and radial positions of solid fuel flame can be sampled by adjusting the position of the pointed end of a conical probe relative to the solid fuel flame; a two-dimensional movable platform is used, and richer and more accurate space distribution information of the solid fuel combustion products can be obtained more conveniently and flexibly, which is beneficial for learning combustion chemical reaction mechanism of the solid fuel and optimizing the combustion products; the axial and radial positions of the conical probe located on the solid fuel flame can be controlled more accurately through a driver and a controller, and sampling and detecting accuracy and convenience are further improved; multiple inorganic substances and multiple organic substances including light dydrocarbon and polycyclic aromatic hydrocarbon can be conveniently and fast detected in real time on line by using a six-way valve, an analytical instrument and other devices to obtain qualitative and quantitative analysis results.

The invention relates to a method for preparing zeolite FAU / mullite and LTA / mullite composite zeolite hollow microspheres by inducing in-situ hydrothermal crystallization with fly ash hollow microspheres as raw materials. Fly ash is the fine dust emitted by coal-fired power plants and other solid fuels, and the discharged solid waste contains a large number of glass bodies with hollow structures, called fly ash hollow microspheres. In the present invention, two different small particle zeolites, FAU or LTA, are used as crystal seeds, and are hydrothermally crystallized in an aluminum-containing or aluminum-free NaOH alkali solution, so that the active silicon-aluminum component in the fly ash hollow microspheres is crystallized into zeolite , while the inert mullite cannot be converted, and the original hollow structure is maintained, so that the composite hollow microspheres supported by the outer layer of dense zeolite membrane and the inner layer of mullite macropores are prepared.

Method for combusting a solid phase fuel, where the fuel is caused, by the help of a non-pneumatic feeding means (11), to be fed to an inlet opening (lla) in a burner device (10), where the burner device (10) is caused to comprise a first inlet (13a) for the oxidant through which an oxidant is caused to flow via a first supply conduit (13). The invention is characterised in that the first inlet (13a) for oxidant is caused to be arranged in the form of a first opening arranged by the inlet opening, through which the oxidant is caused to flow out, through a burner pipe (16) and out through a burner orifice (17) to a combustion space (18), so that the oxidant by ejector action causes the fuel to be conveyed through the burner pipe and out through the burner orifice (17), and in that water vapour is added to the oxi not dant before the oxidant reacts with the fuel.

The invention relates to the technical field of boiler equipment, in particular to a solid fuel gasification incineration boiler. The solid fuel gasification incineration boiler is simple in structure, few in arranged heated faces and capable of saving investment cost and operation cost, and the boiler is environmentally friendly and efficient. A feeding hopper is connected with a hearth, the hearth comprises a front arch, a first rear arch and a second rear arch which are sequentially and obliquely arranged, the first rear arch is lower than the front arch and the second rear arch, a core combustion area is formed by the front arch and the first rear arch, a smoke internal circulation loop is formed by the first rear arch and the second rear arch, and a clearance is reserved between the lower end of the first rear arch and the second rear arch. An air distribution bed is arranged at the position, below the inclined face of the lower portion of the first rear arch, of the bottom of the hearth, the lower end of the air distribution bed is connected with an air chamber, and a main combustion area is formed by the front arch at the upper end of the first rear arch and the second rear arch. A hearth outlet is connected with a cyclone separator, the particle outlet end of the cyclone separator is connected with one end of a loop flue, the smoke outlet end of the cyclone separator is connected with a tail flue, and the other end of the loop flue is connected with the smoke internal circulation loop.