199results about How to "Raise the initial temperature" patented technology

The invention provides high-temperature expanded polymer microspheres and a preparation method thereof and belongs to expandable particles. The high-temperature expanded polymer microspheres are prepared from a thermoplastic resin shell body and a foaming agent packaged in the shell body, wherein an oil-phase composition composed of a polymerizable monomer and a crosslinking agent can be dispersedinto a water-phase dispersed composition; in the presence of the foaming agent, the polymer microspheres coated with the foaming agent are directly prepared through carrying out suspension polymerization reaction and coating the foaming agent in situ; the high-temperature expanded polymer microspheres are characterized in that the oil-phase composition contains the polymerizable monomer and the crosslinking agent, and also comprises a silane coupling agent; the foaming agent is a mixture of isopentane, isooctane and n-octane; the high-temperature expanded polymer microspheres provided by theinvention have the advantages of complete core-shell structure, uniform grain diameter distribution, high foaming agent coating efficiency, good heat resistance of a shell-layer polymer, relatively high initial temperature in an expansion process, relatively high highest expansion temperature and high foaming ratio, have a relatively wide foam stabilizing temperature range, and are suitable for being applied to a thermoplastic resin, rubber or thermoplastic elastomer foaming and processing technology.

The invention relates to a thermally-expandable polymer microsphere for polyvinyl chloride resin foaming and a preparation method thereof, and belongs to the field of expandable particles. The thermally-expandable polymer microsphere consists of a thermoplastic resin shell and a foaming agent encapsulated in the shell; an oil phase composition composed of a polymerizable monomer and a crosslinkingagent is dispersed in an aqueous phase dispersion composition; and in the presence of the foaming agent, the foaming agent is coated in situ through a suspension polymerization reaction to directly prepare the polymer microsphere coated with the foaming agent. The thermally-expandable polymer microsphere is characterized in that the oil phase composition comprises a silane coupling agent in addition to the polymerizable monomer and the crosslinking agent, and the foaming agent is a mixture of isopentane, isooctane and n-octane. The invention provides a thermally-expandable polymer microspherewhich has the advantages of complete core-shell structure, uniform particle size distribution, high foaming agent coating efficiency, good heat resistance of a shell polymer, high initial temperatureduring expansion, high maximum expansion temperature, high foaming ratio, and wide foam stabilizing temperature range, and is special for foaming polyvinyl chloride resin.

The invention discloses a double-effect cross-flow MVR evaporation and concentration system including a feed liquid flow subsystem, a cross-flow steam compression subsystem and a waste heat recovery subsystem. In the feed liquid flow subsystem, feed liquid is preheated by the waste heat recovery subsystem, and performs primary evaporation after reaching a bubbling point through live steam heating; generated secondary steam is compressed by a primary compressor to serve as a heat source of secondary evaporation; primarily concentrated feed liquid is sent to a secondary evaporator via a primary discharge pump for continuous evaporation and concentration; generated secondary steam is compressed by a secondary compressor to serve as a heat source of primary evaporation, and completion liquid is discharged out of the system via a secondary discharge pump. The feeding speed, the preheating temperature, the circulatory flow and the compressor working pressure difference of the system are under accurate control of a PLC. Compared with a single-effect MVR evaporation and concentration system, the system has the advantages that the steam compressor operation pressure difference is reduced, power consumption is saved by 25%-40%, the evaporation and concentration expenses are reduced and emission of carbon dioxide causing the greenhouse effect is greatly reduced.

The invention relates to a full-boiling cyclone fluidized bed air separating damping machine and a new air separating damping technology. The full-boiling cyclone fluidized bed body arranged in a sealed case is divided into a drying section bed and an air separating section bed, wherein a drying section air compartment and an air separating air compartment are separately arranged below the two beds, a fine granule emission pipe is arranged on the upper side surface of the air separating section bed, and the tail part of the air separating section bed is communicated with a coarse granule emission pipe. The granular material is placed in the sealed case so that a great deal of moisture is taken away effluent gas and then the granular material is separately sent to the fine granule emissionpipe and the coarse granule emission pipe for central emission. The two aims of humidity-regulating and size-grading can be completed on one device, thus the machine and the new technology of the invention are especially suitable to be popularized in the coal moisture conditioning field of the coking industry.

The invention discloses a household intelligent electric oven, which comprises a box body, an insulation layer is arranged on the outer wall of the box body, and a partition board is horizontally arranged on the lower side inside the box body, and the partition board divides the box body into a baking cavity on the upper side and a baking chamber on the upper side. In the installation cavity on the lower side, a turntable is horizontally arranged at the center of the lower side of the box body, and a circular groove is opened at the center of the upper surface of the turntable. The limiting protrusion of the household electric oven of the present invention can effectively eliminate oil fume and reduce pollution during the baking process, can automatically control the baking temperature, improve the baking effect, and drive the food to rotate at a uniform speed during baking, so that The food is baked more evenly. Infrared heating and hot air are used for baking, which improves the baking efficiency, effectively reduces shock, improves stability, and improves the efficiency of heat use, avoids heat loss, and saves energy.

The invention discloses a self-backheating swirling burner for a fuel gas with a low heat value. The structure comprises an outer barrel of a burner, an inner tube of the burner and a swirling generation device, wherein the outer barrel of the burner and the inner tube of the burner are coaxially configured, and the swirling generation device is arranged in the inner tube of the burner. The self-backheating swirling burner is characterized in that combustion air exchanges heat with the high-temperature smoke of a combustion chamber by virtue of an inner pipe wall to improve the temperature of the combustion air; and then after the combustion air enters a mixing chamber to be mixed with the fuel gas with a low heat value, the mixture begins rotating by virtue of the swirling generation device to obviously improve the combustion stability of the fuel gas with a low heat value to realize complete combustion. The burner can be applied to the technical field of thermal power engineering, can fully utilize various types of fuel gases generated in the industrial processes, such as metallurgy, petrochemical industry, biomass pyrogenation, waste gasification treatment and the like, and also can be used for burning a common fuel gas.

The invention provides a wire material laser cladding method. The wire material laser cladding method comprises the following steps that one electrode of a wire material heating device is connected with a workpiece, the other electrode of the wire material heating device is connected with a conductive nozzle, the wire material penetrates through the conductive nozzle and then makes contact with the surface of the workpiece, a laser beam and the wire material are placed in a certain angle with the surface of the workpiece respectively, the wire material heating device is started, the wire material is preheated to a certain temperature, a laser is started, and a laser beam generated by the laser is focused on wire material on the surface the workpiece, the laser energy is absorbed by the wire material, then a molten pool is instantly formed on the surface of the workpiece, the melting pool is controlled to move on the surface of the workpiece according to a preset path and a preset speed, and the laser cladding is completed. According to the method, the initial temperature and the cladding linear speed of the wire material are increased, the temperature of the wire material is increased to be close to the melting point before the wire material enters the laser beam, the wire material can melt to form a molten pool on the surface of the workpiece only by relatively small laser energy and relatively short irradiation time of the laser beam, and the wire cladding efficiency and quality are obviously improved, therefore the method has a wide popularization and application prospect.

The invention provides a semi-closed type timing constant-volume thermodynamic circulation method and a semi-closed type timing constant-volume thermodynamic circulation system of a prime motor. The thermodynamic circulation method comprises six processes, namely multi-compression-stage intercooling, countercurrent heat exchanging, timing constant-volume burning, adiabatic expansion, aftercooling, and carbon dioxide and water removal. Heat-power conversion is achieved in the thermodynamic circulation. In the process of multi-compression-stage intercooling, compression power consumption is lowered; in the process of countercurrent heat exchanging, the enthalpy of an expanded working medium is recovered to participate in thermodynamic circulation; the process of timing constant-volume burning effectively inhibits the generation of harmful pollutants such as HC, CO, PM and NOx; in the process of adiabatic expansion, complete expansion for working is achieved; in the process of aftercooling, the working medium is further cooled to the environment temperature and the expansion ratio in the process of adiabatic expansion is enhanced; in the process of carbon dioxide and water removal, the carbon dioxide and the water generated in the process of timing constant-volume burning are removed; the remaining work mediums participate in the next thermodynamic circulation. By the method and the system, the direction is defined for designing a high-efficiency low-pollutant-emission and high-performance prime motor in the future.

The invention discloses a solar boiler soft water preheating system. The solar boiler soft water preheating system comprises a boiler (1), deoxidizing equipment (2), a soft water box (3) and a solar thermal collector (4), and the solar boiler soft water preheating system is characterized in that the solar thermal collector (4) is connected with a heat storing water box (6) through a hot water pipe (5); and the heat storing water box (6) is connected with the solar thermal collector (4) through a water supplying pipe (7) which is provided with a water supplying pump (8), the hot water pipe (5) and the water supplying pipe (7) are respectively provided with a hot water temperature controller (9) and a water supplying temperature controller (10) which are respectively connected with a central control system, the heat storing water box (6) is connected with the soft water box (3) respectively through a water outlet pump (11) and a water supplementary pump (12), and the soft water box (3) is connected with the deoxidizing equipment (2) and the boiler (1) in sequence through a pipeline. The solar boiler soft water preheating system provided by the invention increases the initial temperature of soft water by utilizing renewable solar energy, is energy-saving and emission-reducing, saves non-renewable resources and reduces environmental pollution.

The invention discloses a preparation method of a prevulcanization type catalyst. The method consists of: taking an oxidation state catalyst, adding an organic solvent and elemental sulfur, conducting heat treatment, then using an appropriate organic assistant to perform aftertreatment on the catalyst, thus obtaining the final prevulcanization type catalyst. The method enables the organic assistant and sulfur to form an organic compound, which does not decompose at low temperature, thus avoiding untimely contact of hydrogen and sulfur during startup activation, release of a hydrogen sulfide gas and the consequent influence on equipment air tightness. After high pressure air sealing, the compound of sulfur and the organic assistant decomposes. Hydrogen and sulfur react, the formed hydrogen sulfide and an active metal undergo catalyst activation in the pores of the catalyst, thus raising the initial temperature of vulcanization. After high pressure air sealing, activation oil is introduced to take away the heat generated by activation timely, thus avoiding temperature runaway of the catalyst bed and ensuring a smooth startup process. The catalyst prepared by the method involved in the invention is applicable to preparation of a petroleum fraction hydrogenation catalyst.

The invention relates to a method for heating steel scrap and increasing the smelting steel scrap ratio. The method comprises the following steps that firstly, the steel scrap is added to a heating furnace body through a feeding opening; secondly, a gas supply device sprays mixed gas formed by mixing air and fuel according to a certain proportion into the heating furnace body through one of regenerative burners, the mixed gas is ignited, and meanwhile an exhaust device sucks waste gas in the heating furnace body through the other regenerative burner and exhausts the waste gas out of the heating furnace body; thirdly, after the mixed gas is heated for a period of time, the functions of the two regenerative burners are converted by adjusting a reversing valve; and fourthly, the steps mentioned above are repeated for 3N times till the steel scrap is heated to the preset temperature, and at the moment, heating is stopped. According to the heating method, the steel scrap in the steel scrap heating furnace is preheated, the initial temperature of the steel scrap entering a converter is increased, the converter temperature rising speed is increased, the smelting efficiency of the converter is improved, the proportion of the steel scrap in the raw materials in the smelting process is increased, and the smelting cost is lowered.

The invention relates to a full-boiling cyclone fluidized bed damping machine and a new damping technology. The full-boiling cyclone fluidized bed body arranged in a sealed case is divided into a drying front section bed and a drying back section bed, wherein a drying front section air compartment and a drying back section air compartment are separately arranged below the two beds, and the tail part of the drying back section bed is communicated with a dried granular material emission pipe. The granular material is placed in the sealed case so that a great deal of moisture is taken away by hot air and then the granular material is sent to the dried granular material emission pipe for central emission, thus the drying effect is complete and uniform and the industrial production is easy to realize. The damping machine and the damping technology of the invention are especially suitable for the coal moisture conditioning field of the coking industry and the brown coal quality upgrading and drying field of the coal industry, and have good economic and social benefits.

The invention discloses a heat pump type seawater desalination apparatus with step preheating, and a control method thereof. The apparatus comprises an evaporative condenser, a finned evaporator, a rolling rotor compressor, an axial flow fan, a primary preheater and a secondary preheater. The apparatus is mainly characterized in that step preheating of seawater is carried out by the primary preheater and the secondary preheater, and heat of freshwater and concentrated seawater is recovered to improve the initial temperature of seawater evaporation and the heat utilization rate of a system; and a sprayer and the evaporative condenser are arranged in a coupling manner, so membrane high-efficiency evaporation of seawater on the surface of the condenser is realized. The apparatus has the characteristics of simple structure, safety, reliability, low running cost, high heat utilization rate and good energy saving effect.

The invention relates to a flue gas waste heat recovery cooker which comprises a combustion chamber arranged in a cooking bench and a combustor located in the combustion chamber. The flue gas waste heat recovery cooker further comprises a heat exchange device for heat exchange between high-temperature flue gas exhausted from the combustion chamber and air. The heat exchange device is provided with a flue gas inlet and an air outlet. The upper portion of the combustion chamber is connected with the flue gas inlet through a pipeline, and the air outlet is communicated with the interior of the combustor. According to the flue gas waste heat recovery cooker, the high-temperature flue gas generated through combustion in the combustion chamber and waste heat on the inner wall of the combustion chamber are used for secondary heating on oxygen-bearing air, so that the initial temperature of oxygen-bearing air entering the combustion chamber is greatly increased, fuel can be saved and the flame temperature can be increased; an interlayer is arranged in a heating cavity, the travel of high-temperature oxygen-bearing air in the heating cavity is increased, and the heat exchange effect of high-temperature oxygen-bearing air is improved; a waste gas treatment device is arranged, waste gas pumped out of an exhaust fan is absorbed and treated through waste gas treatment liquid, zero emission of pollutants is achieved, and environmental protection is achieved.

The invention discloses a preparation method of a vulcanization type catalyst. The method comprises: adopting a dipping solution containing a sulfide precursor of active metal Mo or W and an inorganic salt of Ni or Co to dip a needed catalyst carrier, and then conducting after-treatment under certain vacuum degree and temperature, thus obtaining the vulcanization type catalyst. The method can control vulcanization of the catalyst under an appropriate temperature in a startup activation process, thus avoiding untimely vulcanization of the active metal, release of a hydrogen sulfide gas and the consequent influence on equipment air tightness. Meanwhile, in the after-treatment process, redundant water in catalyst pores are removed to prevent excess water in recycle hydrogen from influencing the catalyst activity during activation and corroding equipment. The catalyst prepared by the method provided in the invention is applicable to preparation of a petroleum fraction hydrogenation catalyst.

The invention relates to a gypsum board drying machine and an application thereof. The drying machine comprises an inlet preheating section, a drying machine first area, a drying machine second ares and a drying machine third area which are sequentially arranged, and further comprises a second heat exchanger, a second preheating fan, a second waste gas fan and a hot air pipeline, wherein the second heat exchanger is arranged at the joint of the drying machine second area and the drying machine third area, the second preheating fan is connected with the second heat exchanger and is used for blowing external air into the second heat exchanger, the second waste gas fan is connected with the drying machine second area and the second heat exchanger and is used for blowing wet hot gas dischargedfrom the drying machine second area into the second heat exchanger, so that the wet heat gas and the external air are subjected to heat exchange in the second heat exchanger, and the hot air pipelineis connected with the inlet preheating section and the second heat exchanger and is arranged to introduce hot air obtained after heat exchange into the inlet preheating section. The gypsum board drying machine has the advantages that the problem of pits in a gypsum board surface can be effectively solved, meanwhile, the production efficiency is improved, the energy consumption is reduced, and theproduction cost is reduced.

The invention relates to a production device for a calcium carbide co-production coking product. The production device comprises a lime kiln, a calcium carbide furnace, a carbonization chamber, coking product separation equipment, hydrogen separation equipment and hydrogenation equipment, wherein a lime outlet is connected with a feed port of the carbonization chamber; a coke outlet of the carbonization chamber is connected with an inlet of the calcium carbide furnace; a coking product outlet of the carbonization chamber and a gas outlet of the calcium carbide furnace are connected to the coking product separation equipment; a gas outlet of the coking product separation equipment is connected to the hydrogen separation equipment, and a liquid outlet is connected to the hydrogenation equipment; a hydrogen outlet of the hydrogen separation equipment is connected to the hydrogenation equipment. A discharge port of the hydrogenation equipment is connected to a product storage tank; and a fuel outlet of the hydrogen separation equipment is connected to a fuel burner of a lime kiln calcining zone. The production device is combined with the lime kiln and carbonization equipment through the calcium carbide furnace, and production of the calcium carbide co-production coking product is realized, so that the transportation cost is saved, the energy is effectively utilized, resource is saved, the production cost of calcium carbide and coking product is reduced, and the economic benefit of the enterprise is increased.

The invention discloses a water power based recycling device for shower wastewater and heat energy. The water power based recycling device is a full-automatic comprehensive recycling device for the shower wastewater, which can save the running water and the energy required by heating water, can reduce the quantity of wastewater effluent and can utilize the water power. The hydraulic energy for discharging shower water is utilized as the energy source for collecting the shower wastewater; the shower wastewater after being filtered is pressurized; the shower wastewater enters a heat exchanger through a pipeline; the heat exchanger is utilized to exchange the heat of the collected shower wastewater at higher temperature with the heat of the low-temperature entering water of a shower system, so as to increase the initial temperature of the low-temperature entering water of the shower system; the cooled shower wastewater flows into a recycled wastewater storage device and is used as a water source for flushing a closestool; the shower wastewater is reused, the running water is saved, the sewage discharge and the energy consumption are reduced, and the purpose of saving the energy source and the running water is achieved; the water power based recycling device is safe and reliable and is convenient to realize; and the water power based recycling device has better economic benefit.

The invention discloses a rice steaming box for steam heat recovery, which comprises a rice steaming box and a water tank. A heat exchange tube is arranged in the water tank, and one end of the heat exchange tube is connected with a steam exhaust pipe of the rice steaming box. There are a water inlet pipe and a water outlet pipe, the water inlet pipe is connected with the external water supply pipe, and the water outlet pipe is connected with the water inlet of the steam generating device of the rice steaming box. The present invention uses the waste heat of the steam discharged from the rice steamer to preheat the water in the water tank, increases the initial temperature of the water entering the heating pipe, reduces the heat required for generating steam, reduces the heat required for generating steam, and improves the Energy efficiency, reducing energy consumption and cost.