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40results about How to "Increase flame length" patented technology

Process nozzle and system for gasifying water coal slurry and application thereof

The invention provides a process nozzle and a system for gasifying water coal slurry. The process nozzle comprises a first oxygen channel, a water coal slurry channel, a second oxygen channel, a first cooling water jacket and a cooling water coil, wherein the first oxygen channel comprises a first oxygen channel inlet and a first oxygen channel outlet; the water coal slurry channel comprises at least one water coal slurry channel inlet and a water coal slurry channel outlet; the second oxygen channel comprises a second oxygen channel inlet and a second oxygen channel outlet; the first cooling water jacket comprises a first cooling water jacket inlet and a first cooling water jacket outlet; and the cooling water coil comprises a cooling water coil inlet and a cooling water coil outlet. The process nozzle is characterized in that: the first oxygen channel is positioned at the central position of the process nozzle; the water coal slurry channel is positioned between the first oxygen channel and the second oxygen channel and surrounds the periphery of the first oxygen channel; and the second oxygen channel surrounds the periphery of the water coal slurry channel. The process nozzle reduces the length of combustion flame more effectively, reduces the ablation of flame on a refractory brick, promotes the mixing and atomization of water coal slurry and oxygen and improves gasification efficiency.
Owner:CHNA ENERGY INVESTMENT CORP LTD +1

Fuel step adding apparatus of glass melter total oxygen combustion

The invention provides a hierarchical adding device for total-oxygen combustion fuel of glass melting furnaces. The device mainly comprises a main fuel pipe (2), a combustion-supporting oxygen pipe (7), a main burner (11), minor fuel pipes (12), as well as valves which are connected with the bodies of the combustion-supporting oxygen pipe (7), the main fuel pipe and the minor fuel pipes and play a certain role in controlling and regulating, wherein the main burner (11) has a casing-type structure and is sleeved with the body of the right part of the main fuel pipe (2); two minor fuel pipes (12) are provided, are symmetrically distributed on two sides of the main burner (11), and are parallel to the main burner; and the right end of the body of the combustion-supporting oxygen pipe (7) is connected and communicated with the main burner through a bent pipe. The device regulates the length, coverage area, temperature and other parameters of flame by adjusting the amount of fuel used between the main burner and the two minor fuel pipes so as to ensure the complete combustion of the fuel, has the advantages of saving energy, reducing emission, benefiting environmental protection and the like, and is especially applicable to total-oxygen combustion glass melting furnaces which takes natural gas as fuel.
Owner:WUHAN UNIV OF TECH

High-temperature flue gas multi-stage backflow low-nitrogen combustor and combustion method thereof

The invention discloses a high-temperature flue gas multi-stage backflow low-nitrogen combustor and a combustion method thereof. The combustor comprises a shell, a fuel main pipe and a combustion head, wherein the fuel main pipe is arranged in the shell, and an air channel is formed between the fuel main pipe and the shell; the combustion head comprises a connecting pipe, a secondary fuel pipe, aprimary fuel pipe, a secondary fuel distribution ring pipe and a rotational flow disc; the secondary fuel distribution ring pipe is arranged on the periphery of the rotational flow disc in a concentric circle mode, and the secondary fuel distribution ring pipe and the rotational flow disc jointly serve as an outlet of the combustion head; and vortex plates are arranged on the inner wall surface ofthe front end of the shell, and the vortex plates are arranged at flue gas backflow holes in a one-to-one correspondence mode. Primary air and fuel gas enter the combustor through the air channel andthe fuel main pipe correspondingly; and the fuel gas is divided into primary fuel gas and secondary fuel gas through the primary fuel pipe and the secondary fuel pipe correspondingly. The primary fuel gas forms an on-duty flame at the center of the rotational flow disc. The secondary fuel gas and air form high-speed jet flow, and high-temperature flue gas is entrained to form multi-stage backflow. The high-temperature flue gas multi-stage backflow low-nitrogen combustor has the advantages of fuel grading, flame dispersion, low NOx combustion and the like.
Owner:TSINGHUA UNIV

Supercritical hydrothermal combustion device and method

A supercritical hydrothermal combustion device comprises a device body serving as a combustion chamber. A hydrothermal flame generator is arranged on the side face of the upper portion of the device body. Multiple high-pressure organic slurry nozzles and multiple high-pressure oxidizing agent nozzles are arranged on the hydrothermal flame generator. Igniters are arranged at outlets of the nozzles.A supercritical thermal fluid guide pipe penetrates into the device body from the top face of the device body. A residue slurry outlet is formed in the bottom of the device body. A residue separationassembly is arranged at the bottom of the supercritical thermal fluid guide pipe. Solid-phase residues generated by combustion of the hydrothermal flame generator and part of liquid phase products flow out from the residue slurry outlet, the rest of liquid phase products enter the supercritical thermal fluid guide pipe after being filtered by the residue separation assembly and flow out from a supercritical thermal fluid outlet at the top of the supercritical thermal fluid guide pipe, and the rough separation process of solid-phase and liquid-phase products is achieved. By means of the supercritical hydrothermal combustion device, rapid ignition, stable and clean combustion and afterburnt residue and flow efficient separation of fossil fuel (such as coal), urban / industrial sludge and other solid-phase or solid bearing fuel are achieved.
Owner:XI AN JIAOTONG UNIV

Multi-channel dense-thin separation type single cone burner and using method thereof

The invention relates to a multi-channel dense-thin separation type single cone burner and a using method thereof. The burner comprises a pulverized coal supply mechanism, a transition channel, a multi-stage air assembly, at least one deflector, a combustion stabilizing chamber and a rectifying chamber, wherein the multi-stage air assembly comprises N air ducts, the Nth air duct is connected withthe combustion stabilizing chamber and the rectifying chamber sequentially, the pulverized coal supply mechanism comprises an air and pulverized coal pipe and a reach-lean separator, the air and pulverized coal pipe communicates with the combustion stabilizing chamber, the reach-lean separator is detachably connected to the air and pulverized coal pipe, and the transition channel is arranged at aninterval in the first air duct; each air duct is of a double-layer hollow structure, and one end of at least one deflector is inserted into the corresponding air duct; and at least one direct flow channel is formed between each deflector and the combustion stabilizing chamber, a flare is formed at the other end of each deflector, and the angle of each flare is the same as that of the combustion stabilizing chamber. Air can be divided into N strands to enter a burner body, turbulence intensity at the airflow boundary is high, the mixing speed of air and pulverized coal is increased, the pulverized coal is stably ignited, and high-efficiency and low-nitrogen burning of the pulverized coal can also be ensured.
Owner:CHINA COAL RES INST CCRI ENERGY SAVING TECH CO LTD

Decarbonization method and device for diesel engine exhaust gas carbon granule collector

The invention discloses decarbonization method and device for a diesel engine exhaust gas carbon granule collector (Diesel Particulate Filter, DPF). The decarbonization method comprises the steps of producing an oxyhydrogen gas through water electrolysis, mixing the oxyhydrogen gas with methyl alcohol subjected to ultrasonic atomization, combusting under the control of an automatic methyl alcohol,ejecting through a fire nozzle, utilizing an induced draft fan on the back part of a DPF rotating work table for forming an air channel, enabling an induced draft fan for combusting and cleaning theinner wall of the carbon granule collector, combusting and melting carbon deposits on the inner wall of the carbon granule collector by utilizing the catalytic combustion characteristics of activatedhydrogen ions and hydroxyl ions, and discharging under the washout of moisture formed after hydroxyl ion combustion. The decarbonization method provided by the invention has the advantages of high decarbonization efficiency, no damage on the inner wall of the carbon granule collector, low us cost, no pollution on the environment and the like. The device provided by the invention comprises an oxyhydrogen gas oxyhydrogen gas system, a methyl alcohol ultrasonic atomization device, a three-way connector, an automatic igniter, a combustion nozzle, the DPF rotating work table, the induced draft fanand an electrical control device.
Owner:湖南冠拓科技股份有限公司

Process nozzle and system for gasifying water coal slurry and application thereof

The invention provides a process nozzle and a system for gasifying water coal slurry. The process nozzle comprises a first oxygen channel, a water coal slurry channel, a second oxygen channel, a first cooling water jacket and a cooling water coil, wherein the first oxygen channel comprises a first oxygen channel inlet and a first oxygen channel outlet; the water coal slurry channel comprises at least one water coal slurry channel inlet and a water coal slurry channel outlet; the second oxygen channel comprises a second oxygen channel inlet and a second oxygen channel outlet; the first cooling water jacket comprises a first cooling water jacket inlet and a first cooling water jacket outlet; and the cooling water coil comprises a cooling water coil inlet and a cooling water coil outlet. The process nozzle is characterized in that: the first oxygen channel is positioned at the central position of the process nozzle; the water coal slurry channel is positioned between the first oxygen channel and the second oxygen channel and surrounds the periphery of the first oxygen channel; and the second oxygen channel surrounds the periphery of the water coal slurry channel. The process nozzle reduces the length of combustion flame more effectively, reduces the ablation of flame on a refractory brick, promotes the mixing and atomization of water coal slurry and oxygen and improves gasification efficiency.
Owner:CHNA ENERGY INVESTMENT CORP LTD +1

Fuel step adding apparatus of glass melter total oxygen combustion

The invention provides a hierarchical adding device for total-oxygen combustion fuel of glass melting furnaces. The device mainly comprises a main fuel pipe (2), a combustion-supporting oxygen pipe (7), a main burner (11), minor fuel pipes (12), as well as valves which are connected with the bodies of the combustion-supporting oxygen pipe (7), the main fuel pipe and the minor fuel pipes and play a certain role in controlling and regulating, wherein the main burner (11) has a casing-type structure and is sleeved with the body of the right part of the main fuel pipe (2); two minor fuel pipes (12) are provided, are symmetrically distributed on two sides of the main burner (11), and are parallel to the main burner; and the right end of the body of the combustion-supporting oxygen pipe (7) is connected and communicated with the main burner through a bent pipe. The device regulates the length, coverage area, temperature and other parameters of flame by adjusting the amount of fuel used between the main burner and the two minor fuel pipes so as to ensure the complete combustion of the fuel, has the advantages of saving energy, reducing emission, benefiting environmental protection and the like, and is especially applicable to total-oxygen combustion glass melting furnaces which takes natural gas as fuel.
Owner:WUHAN UNIV OF TECH

A kind of multi-oxygen oblique flame burning method and burning device of flat glass melting furnace

The invention relates to an oxygen-rich inclined-flame combustion method of a flat glass melting furnace and a combustion device. The combustion device comprises a feeder nose, a melting part, a neck and a cooling part. A breast wall is arranged outside the melting part. The breast wall, close to left and right sides of the feeder nose, is provided with smoke vents. Several oxygen-rich inclined-flame combustors are arranged at intervals at left and right sides of the breast wall. The included angle between flame of the oxygen-rich inclined-flame combustors and the breast wall is 30-150 degrees. Each oxygen-rich inclined-flame combustor contains a spray gun and a burner block, wherein the spray gun comprises an oxygen spray gun and a fuel spray gun. The oxygen-rich inclined-flame combustor also comprises a control part which adopts subsection control. According to a temperature curve of a glass melting furnace, distribution ratio of each section of combustor for conveying fuel is set. By an oxygen-rich inclined-flame combustion mode, temperature field and airflow field inside the glass melting furnace are optimized, heat exchange efficiency can be enhanced, erosion of exhaust gas to furnace crown is minimized, and service life of the glass melting furnace is prolonged.
Owner:王立臣
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