7results about How to "Easy to ignite" patented technology

This invention belongs to the field of iron and steel metallurgy technology, specifically relating to a staged combustion system and process for a gas boiler. The system includes a burner connected to the gas boiler, a combustion-supporting gas structure, and a combustion-supporting air structure. The burner includes a combustion stabilizing plate, located at the front end of the burner and connected to the gas boiler. The combustion stabilizing plate has three layers of staged ignition units evenly arranged around its center: an inner layer, a middle layer, and an outer layer. The middle layer ignition unit includes multiple externally mixed combustion nozzles, where combustion-supporting air and gas mix outside the combustion stabilizing plate. The outer layer ignition unit includes multiple internally mixed combustion nozzles, where combustion-supporting air and gas mix inside the combustion stabilizing plate. The combustion-supporting gas structure provides fuel to the burner, and the combustion-supporting air structure provides combustion-supporting air to the burner. This invention effectively achieves complete combustion of the gas, reduces nitrogen oxide production, and provides a stable flame, demonstrating good performance in terms of safety, environmental protection, and efficiency.

The present application relates to the technical field of boiler combustion and discloses a multi-stage coal powder burner, which comprises an outer combustion cylinder, an inner combustion cylinder, an adjuster and a combustion stabilizer, the inner combustion cylinder is arranged inside the outer combustion cylinder, a channel is formed between the outer combustion cylinder and the inner combustion cylinder, the adjuster is connected with the outer combustion cylinder, the adjuster is used for guiding mixed gas flow, the mixed gas flow can be divided into a first-stage gas flow flowing through the inner combustion cylinder and a second-stage gas flow flowing through the channel, the adjuster is used for adjusting the flow of the first-stage gas flow and the second-stage gas flow, the combustion stabilizer is connected with the inner combustion cylinder, the combustion stabilizer is provided with a flame spout, the flame spout is arranged in the inner combustion cylinder and is used for spouting a flame to ignite the first-stage gas flow and the second-stage gas flow step by step. The multi-stage coal powder burner of the present application can adapt to different coal types to realize rapid ignition and stable and sufficient combustion.

This invention relates to a biomass gasification system and method with dust removal function, including a gasifier, a burner, a raw material supply module, and a dust collection device. The raw material supply module is used to transport pulverized green waste or other biomass raw materials to the gasifier for gasification to generate biomass fuel gas. The inlet of the dust collection device is located near the outlet of the raw material supply module, and is used to extract dust entrained during the process of the raw material falling into the gasifier. The dust includes sawdust, glue fragments, and other lightweight combustible particles. The outlet of the dust collection device is connected to the oxygen supply path of the burner, and is used to introduce the dust into the burner to mix and burn with the biomass fuel gas. This invention, by constructing a closed-loop path of "dust extraction-reburning," can significantly reduce coking in the gasifier, improve gasification efficiency and burner temperature rise rate, achieve efficient recovery and utilization of dust energy, and enhance the overall operational stability and thermal output efficiency of the system.

This utility model discloses a long plasma processing chamber structure, relating to the technical field of ion processing chamber devices. It includes a main chamber with three interconnected cavities inside. Three integrated plates are provided on the top surface of the main chamber. Weight-reducing holes are provided at the upper and lower ends between adjacent cavities, and a light-passing shaft fixing hole is provided in the middle between adjacent cavities. This utility model, through the cooperation of the collecting plate and the burner pressure plate, facilitates the simultaneous spraying of ions in different directions, enabling rapid object processing and improving the device's object processing capability. The cooperation between the high-voltage line inlet and the cavity facilitates the ignition of the internal mixed gas, allowing for better control of ion spray and improving the device's precise control over object processing. This device enhances both object processing capability and ion spray control.

The application discloses a diesel oxidation catalyst for reducing N2O emission and a preparation method thereof. First and second catalytic coating layers of the catalyst are continuously coated on a carrier in sections, a third catalytic coating layer is located on the upper layer of the first catalytic coating layer, and a fourth catalytic coating layer is located on the upper layer of the second catalytic coating layer. The first and second catalytic coating layers are used for purifying HC / CO pollutants and oxidizing NOx into NO2. The third noble metal active component of the third catalytic coating layer is composed of Pt or a mixture of Pt and Pd, and the ratio of Pt / Pd is 5:1-1:0. The fourth noble metal active component of the fourth catalytic coating layer is one or more of Pt, Pd, Rh and Ru. The third catalytic coating layer is used for reducing the selectivity of the DOC catalyst to N2O when oxidizing NH3 and the selectivity to N2O when the HC-SCR reaction is performed. The fourth catalytic coating layer adopts a coating layer with N2O decomposition capacity, and the N2O selectively generated in the upstream section is decomposed into N2. The catalyst coating layers are mutually cooperative, have basic DOC catalytic performance, and can reduce N2O emission.

The application provides a single W coated oxide loaded boron fuel and a preparation method. The oxide loaded boron fuel is Bi2O3 / B or V2O5 / B. The surface layer of the single W coated oxide loaded boron fuel is a single W film. The inner layer is B. The middle layer between the W film and B is Bi2O3 particles or V2O5 particles. The application adopts an atomic layer deposition method to deposit a single metal W film on the surface of Bi2O3 / B and V2O5 / B to anchor the Bi2O3 and V2O5 particles, and to prevent the agglomeration and growth of the Bi2O3 and V2O5 particles at high temperatures. The deposition of W in the application makes the ignition of the composite fuel easier, and can increase the heat release of the composite fuel. The preparation method adopted in the application has high control precision, is easy to realize industrialization, and shows a good application prospect in the field of high-energy solid fuel modification.

This utility model discloses a biomass co-firing burner, relating to the field of biomass co-firing power generation technology. It includes a central air duct, a biomass primary air duct, an inner secondary air duct, an elbow, a pulverized coal concentration separation device, a pulverized coal dilute phase primary air duct, a pulverized coal dense phase primary air duct, a middle secondary air duct, an outer secondary air duct, a secondary air diffuser and a middle secondary air cyclone separator, a pulverized coal flame stabilizer, a pulverized coal dilute phase primary air duct cyclone separator, an inner secondary air cyclone separator, a biomass flame stabilizer, an igniter, and a pulverized coal concentration separation adjustment rod. The air ducts, from the center outwards, are: central air duct, biomass primary air duct, inner secondary air duct, pulverized coal dilute phase primary air duct, pulverized coal dense phase primary air duct, middle secondary air duct, and outer secondary air duct. This utility model fully utilizes the advantages of biomass fuel—high volatile content and easy ignition—by igniting the biomass first, significantly reducing ignition costs.