41results about How to "Avoid direct burning" patented technology

The invention relates to a process and a device for recovering and recycling protective gas of a bell-type bright annealing furnace. The process comprises the following steps of: performing cooling and condensation of oil and gas in refluxing protective gas of a bell-type bright annealing furnace group; allowing the cooled and condensed protective gas to enter a water separator to remove most of water and oil; allowing the cooled protective gas from which the oil and the gas are removed to enter a preceding stage buffer tank; after the protective gas is buffered by the preceding stage buffer tank, pressurizing by using a roots blower; allowing the pressurized protective gas to enter an oil absorption device to remove oil and enter a deaerator to remove oxygen; reacting in the deaerator to generate water and discharge heat; cooling the protective gas by using a cooler and removing water from the protective gas by using a condenser; allowing the cooled and dehydrated protective gas to enter the water separator to separate water; allowing the protective gas to enter an absorption regeneration drying device for removing water and impurities deeply; and performing decompression and voltage stabilization on the purified gas by using a post-stage buffering tank and then supplying the purified gas to the bell-type bright annealing furnace group. Through the process and the device, the refluxing protective gas of the bell-type bright annealing furnace group is recovered and purified and enters the annealing furnace to be recycled as the protective gas again.

The invention discloses a corrugated metallic sheath inorganic mineral insulated cable and a manufacturing method thereof. The cable consists of an inner cable core, an insulating layer winding the outside of the cable core, and an outermost metallic sheath; the cable core is formed by twisting a bundle of copper wires, the insulating layer is an inorganic mineral insulated tape, the metallic sheath is a copper corrugated tube, corrugation of the copper corrugated tube has upper peaks and lower valleys, the cable core, the insulating layer and the copper corrugated tube have the same length, and the surface of the copper corrugated tube is provided with a welding seam with the same length of the copper corrugated tub along the axial direction. As the cable takes a corrugated shape, the cable is easy to be bent and mounted in a laying field, which lowers the construction cost, can prevent a cable conductor and the insulating layer from being directly burnt by flame, prevents a phase and phase conductor from short circuit, and prevents elevators and fire fighting devices from being incapable of operating without power supply, thus obtaining precious time to facilitate persons to escape in time, and reduce property loss.

The invention relates to a distributed energy resource waste heat utilization system which comprises a gas turbine generator set, a steam turbine generator set and a waste heat boiler. The system is characterized in that an exhaust end of a gas turbine is communicated with a gas inlet end of the waste heat boiler, and a steam output end of the waste heat boiler is connected with a steam inlet end of a steam turbine, so that a gas turbine waste heat utilization loop is formed; a steam outlet end of the steam turbine is connected with a water inlet end of the waste heat boiler sequentially by a condenser and a water feed pump, so that a steam turbine waste heat utilization loop is formed; a hot water heat exchanger is arranged at the tail end of the waste heat boiler; a water outlet end of the hot water heat exchanger is connected with a water inlet end of a natural gas heating unit by a hot water supply mother pipe, and a water return end of the hot water heat exchanger is connected with a water outlet end of the natural gas heating unit by a hot water return mother pipe, so that a waste heat cyclic utilization loop of the gas turbine generator set and the steam turbine generator set can be formed. The distributed energy resource waste heat utilization system can be used for solving the problems that a natural gas heating mechanism is high in energy consumption and poor in safety in the prior art, and has the beneficial effects of utilizing the flue gas of the waste heat boiler, reducing the system energy consumption and reducing the flue gas emission.

The invention discloses a dicyclopentadiene-cyclopentene copolymer and a preparation method thereof. With the total weight of the copolymer as a reference, the copolymer contains 1-10wt% of cyclopentene structural units, and 90-99wt% of dicyclopentadiene structural units. The dicyclopentadiene-cyclopentene copolymer provided by the invention has high polymerization conversion rate. A prepared product has no odor, good heat resistance, and especially excellent impact resistance. With the preparation method, the impact resistance of the material is improved from approximately 100J/m of a prior polycyclopentene diene homopolymer material to 300-400J/m. The material can be used as various impact-resistant engineering materials.

The invention relates to a reflective heated waste rubber and waste plastic thermal cracking device. The device comprises a feeder, a cracking chamber and two spiral cracking devices. The spiral cracking devices are vertically arranged. Two combustion furnaces are respectively arranged on both sides of the lower part of the cracking chamber. Separators are respectively arranged in a vertical direction outside the spiral cracking devices in the cracking chamber. The separators and inner walls on both sides of the cracking chamber form reflective hot air ducts, respectively. Hot air channels are reserved on the upper parts. Compared with conventional cracking devices, the reflective heated waste rubber and waste plastic thermal cracking device provided by the invention is high in degree of automation, large in production capacity and low in manufacturing cost which is half of that of conventional rotary furnaces, and the daily production capacity is twice as much as that of the conventional rotary furnaces. The spiral cracking device is prevented from being directly burned by flame, the upmost spiral cracking device is heated first to reach the higher temperature required by a feeding part. The reflective heated waste rubber and waste plastic thermal cracking device heats uniformly and has high thermal cracking efficiency. Retention time of hot air in the furnace is prolonged, so that the heat is adequately used, and the energy sources are saved. The reflective heated waste rubber and waste plastic thermal cracking device is in totally-enclosed continuous production and low in labor intensity, and no secondary pollution is generated.

The invention relates to a continuous annealing furnace with a shielding gas recovery function. The continuous annealing furnace comprises a furnace body, and a shielding gas recycling device used for purifying the shielding gas discharged from the furnace body and feeding the shielding gas back into the furnace body for recycling, wherein the shielding gas inlet of the shielding gas recycling device is connected with the shielding gas outlet of the furnace body; and the shielding gas outlet of the shielding gas recycling device is connected with the shielding gas inlet of the furnace body. The shielding gas recycling device comprises an impurity filtering unit, an oxygen filtering unit, a water filtering unit and a control system, wherein the impurity filtering unit is used for filtering solid impurities in the shielding gas; the oxygen filtering unit is used for filtering oxygen in the shielding gas; the water filtering unit is used for filtering water in the shielding gas; and the control system is respectively in signal connection with the impurity filtering unit, the oxygen filtering unit and the water filtering unit. According to the continuous annealing furnace disclosed by the invention, the shielding gas can be fully utilized, the energy is saved, and the continuous annealing furnace adapts to the development direction of energy conservation and emission reduction and has obvious economic benefits and social benefits.

The invention discloses a mixed gas combustor, relating to a gas combustor. The mixed gas combustor comprises two channels which are embedded inside and outside, a combustion air channel is arranged on the periphery and a fuel channel is arranged in the center, a burner nozzle is formed on the front end of the combustion air channel, and the front end of the fuel channel is provided with a spraying orifice for enabling fuel in the fuel channel to be radially outwards spirally spayed. The invention aims at providing the novel gas combustor, which has better stable combustion while combusting low-heat-value gas fuel with large flow, can not cause nozzle burning and coking problems while combusting high-heat-value gas fuel with small flow, and can combust a mixed fuel of a low-heat-value gas fuel and a high-heat-value gas fuel.

The invention discloses a coal slime drying treatment device, belongs to the field of coal slime drying. The problems of non-uniform heating of coal slime, overheating decomposition of an outer layerand insufficient drying of an inner layer in the prior art are solved. The device comprises a concentration unit, a filter pressing unit and a slivering drying unit which are sequentially connected, wherein the slivering drying unit comprises an extrusion assembly, a drying assembly located below the extrusion assembly and a slivering pore plate located between the extrusion assembly and the drying assembly, and the extrusion assembly comprises an extrusion cylinder and a piston located in the extrusion cylinder; the drying assembly comprises a drying cylinder and a gas supply unit used for providing drying gas for the interior of the drying cylinder; a space between a piston in the extrusion cylinder and the slivering pore plate is an extrusion cavity, the interior of the drying cylinderis a drying cavity, the extrusion cavity communicates with a feeding pipe, and the drying cylinder is communicated with a discharging pipe. The device disclosed by the invention can be used for concentration, filter pressing, slivering and drying of coal slime.

The invention discloses an integrated downdraft biomass gasification power generation system, belongs to the technical field of biomass gasification power generation, and particularly relates to an integrated downdraft biomass gasification power generation system and method. The system comprises a hopper, a reactor, a slag barrel, a cyclone dust remover, an air preheater, an activated carbon adsorber, a gas fan, a torch, an air fan, a gas generator set, a pipeline, a ladder and a base, and is characterized in that the hopper, the air preheater, the cyclone dust remover, the slag barrel and thereactor are coupled into a compact whole, so that the heat efficiency of the whole system is greatly improved. The system is suitable for gasifying straw particles, wood chips, crushed coconut shellsand other carbonaceous biomass materials to generate combustible gas, and the combustible gas is conveyed into a gas engine to be combusted to push the engine to drive a generator to generate electric energy. The system is compact in structure, high in universality, high in energy utilization rate, reliable, convenient to use and easy to operate.

The invention discloses a biomass gasifier with a preheating recovery function. The biomass gasifier comprises a pyrolyzing furnace, wherein a grate is arranged in the pyrolyzing furnace, a feeding port is arranged at the position, above the grate, of the pyrolyzing furnace, a sealed feeder is arranged at the feeding port in a matched mode, a discharging port is arranged at the position, below thegrate, of the pyrolyzing furnace, and a sealed discharger is arranged at the position of the discharging port in a matched mode; the biomass gasifier further comprises an oxygen-free medium-temperature gas source mechanism which is arranged outside the pyrolyzing furnace and supplies smoke to the pyrolyzing furnace; a combustible gas collector is further arranged in the pyrolyzing furnace; and apreheating sleeve is arranged outside the sealed feeder in a sleeving mode, a preheating pipe set is arranged at the position of the preheating sleeve, a cooling sleeve is arranged outside the sealeddischarger in a sleeving mode, a cooling pipe set is arranged at the position of the cooling sleeve, a water inlet/outlet of the preheating pipe set is connected with a heating path of a heat exchanger, and a water inlet/outlet of the cooling pipe set is connected with a cooling path of the heat exchanger. According to the biomass gasifier, a combustor provides an oxygen-free medium-temperature heat source for the pyrolyzing furnace, preheating recovery of carbon slag can be realized, and resourceful and integrated utilization is realized.