7 results about "Back burning" patented technology

The utility model discloses a fuel steam boiler, which belongs to the field of steam boilers, and comprises a boiler barrel, and a combustion chamber, a reversal chamber, a first smoke tube assembly, a smoke box and a second smoke tube assembly which are arranged in the boiler barrel, and a feed port and a smoke outlet are formed on the boiler barrel; one side of the reversal chamber is communicated with the first smoke pipe assembly, the other end of the first smoke pipe assembly is communicated with the smoke box, the other end of the smoke box is connected with the second smoke pipe assembly, and the other end of the second smoke pipe assembly is communicated with the smoke outlet. According to the fuel steam boiler, the secondary air inlets, the air blower and the induced draft fan are arranged on the left side and the right side of the hearth of the boiler barrel, so that combustibles can be fully burnt out, heat efficiency is improved, and emission of pollutants is reduced; and meanwhile, through the three-return-stroke design, a downstream combustion structure is formed, and the combustion efficiency and the heat transfer efficiency are greatly improved.

The utility model discloses a kind of hot desorption tail gas back burning device, it is related to soil remediation and waste gas processing technical field, including back burning device ontology, the inside of the back burning device ontology is provided with first air mixing section, ignition combustion section and second air mixing section, tail gas inlet is set in the side above the back burning device ontology, fresh air inlet is provided in the other side above the back burning device ontology.The utility model is extracted by hot desorption to organic waste gas and is sent to combustion chamber incineration, so that it does not need to use conventional adsorption, oxidation and so on to process organic pollution waste gas, so as to not produce secondary pollution, and some combustible organic pollutants combustion can produce heat value, which is just available to provide for the contaminated soil to be repaired heating, can reduce the use amount of natural gas or liquefied petroleum gas, more efficient and energy saving.

The invention relates to a segmented moving type back burning device and a using method thereof.The segmented moving type back burning device comprises two sets of segmented transferring portals which are correspondingly arranged and a plurality of supporting roller devices, a flame back burning device is arranged below the supporting roller devices, and a baking gun is arranged on the flame back burning device; each segmented transfer portal frame comprises a ground track and a portal frame capable of moving along the ground track, transverse transfer trolleys corresponding to the supporting roller devices in number are arranged on the portal frames, and each transverse transfer trolley is provided with a longitudinal clamping head capable of ascending and descending; longitudinal clamping heads on the two sets of segmented transfer portals are applied one by one to clamp the two ends of each segmented longitudinal workpiece, the flame back burning device is adjusted to move to the position below the corresponding segmented longitudinal workpiece, the baking gun ignites to conduct back burning operation, the two sets of portals move in order, and therefore back burning operation of the segmented longitudinal workpieces is completed. According to the structure, back burning operation of a plurality of segmented longitudinal bone workpieces can be carried out at a time, the working efficiency is improved, the manual operation intensity is reduced, the back burning process is accurate and controllable, and the automation degree is high.

The utility model relates to the technical field of cutting torch equipment, and improves the operation safety of a cutting torch device in the prior art. The cutting torch device comprises a gas inlet pipe assembly which is configured to be connected with an external gas source and convey combustible gas and combustion-supporting gas; the mixed gas chamber is connected with the gas inlet pipe assembly and is used for realizing gas premixing and pressure balance; one end of the jet pipe assembly is connected with the outlet end of the mixed gas chamber, and a nozzle is formed in the other end and used for accelerating flowing of the mixed gas and forming stable jet flow; the one-way valve is arranged on the jet pipe assembly and used for preventing gas from flowing reversely and maintaining the system pressure stable; and the fire arresting piece is arranged on the air inlet pipe assembly and the jet pipe assembly and used for preventing flame burn-back. The device is high in integration level, forms a multiple safety protection mechanism, and remarkably reduces the operation risk.

The invention relates to a workpiece fixing type automatic segmented back burning device and a using method thereof.The workpiece fixing type automatic segmented back burning device comprises a workpiece containing area and a back burning execution area, a plurality of supporting devices and a plurality of segmented jacking devices are arranged in the workpiece containing area, and the supporting devices and the segmented jacking devices are used for containing segmented longitudinal bone workpieces; the supporting devices and the segmented jacking devices are arranged in a spaced mode. The back burning execution area is provided with a flame back burning device and a detection door frame matched with the flame back burning device, the flame back burning device comprises a ground rail and a cross beam, and the cross beam is provided with a movable transverse trolley and a flame baking gun. In the implementation process, the supporting device and the segmented jacking device are matched together, the purposes of supporting and controlling lifting of the segmented longitudinal bone workpiece on the supporting device and the segmented jacking device are achieved, the segmented longitudinal bone workpiece is matched with the flame baking gun in position, and the effect of efficient back burning operation is achieved. The flame baking guns correspond to the welding seams of the segmented longitudinal bone workpieces one to one, so that the rapid and efficient back burning effect is achieved, the efficiency is improved, and the manual labor amount is reduced.

The application discloses a multi-return stroke gas boiler and relates to the technical field of gas boilers; the multi-return stroke gas boiler comprises a furnace cylinder, front and rear smoke boxes riveted to the two sides of the furnace cylinder, a furnace bellow arranged in the furnace cylinder, and a back burning chamber fixedly connected to the right side of the furnace bellow; first and second return stroke pipes are movably connected between the back burning chamber and the front smoke box and between the front and rear smoke boxes, respectively; a igniter is movably connected to the left side of the front smoke box; and the front and rear smoke boxes are internally provided with a heat uniformity assembly for assisting smoke flow and increasing the heating uniformity of the return stroke pipes; the capsule extrusion provides power for the smoke, ensures the smooth flow of the smoke in the second return stroke pipe, and drives the driving cylinder to move synchronously when the push plate reciprocates left and right, the driving cylinder drives the sliding block to slide in the sliding groove, thereby driving the first and second return stroke pipes to rotate, so that the hot area of the return stroke pipe is in contact with the cold water area of the soft water, the contact area of the return stroke pipe and the soft water is increased, and the heating efficiency of the soft water is improved.

A combined combustion and after-combustion method in which combustion gases are generated in a main combustion zone 10, the combustion gases 17 are evacuated from the main combustion zone 10 and introduced into an after-combustion zone 19 where the combustion gases 17 are subjected to after-combustion and after-combustion gas 23 is obtained which is evacuated from the after-combustion zone 19, in which a first level of one or more combustible substances is monitored in the combustion gases 17 evacuated from the main combustion zone 10 and / or a second level of one or more combustible substances in the after-combustion gases 23 evacuated from the after-combustion zone 19, in which a control signal is generated based on the monitored level(s) and in which the injection rate of after-combustion oxidant or the stoichiometric excess of after-combustion oxidant with respect to the fuel is regulated afterburner based on said control signal.