34results about How to "Controllable heating" patented technology

A microwave sintering method of a coated superfine sulphide selenide cadmium red pigment for ceramic glaze is characterized in that sulphide selenide cadmium powder [CdSexS[1-x]-SiO2] coated with silica is used; 0.2-0.8 per mill by weight of sodium hexametaphosphate or OP-10 dispersant or sodium dodecyl benzene sulfonate is added before sintering; the microwave sintering mode is adopted, wherein the microwave frequency is 250MHz-250GHz, the microwave sintering temperature is 800-1500 DEG C, the sintering time is 0-10hr; and the pigment is discharged from the furnace after temperature preservation. Compared with the prior art, the method has the following advantages: the aggregation phenomenon of the coated pigment can be effectively prevented in the sintering process and the manufacturingcost is low.

The invention discloses a method for detoxification of citrus by utilizing microwaves, and belongs to the technical field of microwave application. The method is characterized in that during microwave pretreatment, the microwave irradiation frequency is 1.0 GHz-3.0 GHz, the power is 100-900 W, the microwave irradiation time is 5-20 seconds, then pausing is carried out for 10-30 seconds, repetitive operation is carried out 3-10 times, the temperature of each part of the citrus is increased to 40-45 DEG C, and the constant temperature is maintained for 30-60 seconds; then it is adjusted that the microwave irradiation frequency is 350 MHz-950 MHz, the power is 1,000-3,000 W, the microwave irradiation time is 3-10 seconds, then pausing is carried out for 20-60 seconds, repetitive operation is carried out 5-20 times, the temperature of each part of the citrus is increased to 50-55 DEG C, the constant temperature is maintained for 1-5 minutes, and citrus detoxification is carried out by utilizing the microwaves. The method for detoxification of the citrus by utilizing the microwaves can make each part of the citrus reach the fatal temperature of candidatus liberibacter more quickly and evenly, and a tree body is not affected; under the non-thermal effect of a microwave electromagnetic field, nucleic acid, protein and other molecules in the candidatus liberibacter are easy to denature and inactivate to achieve double sterilization effects; the detoxificated citrus through the microwaves are detected by adopting GB / T 28062-2011 <Real-Time Fluorescence PCR Detection Method of Candidatus Liberibacter>, and the negative conversion ratio of the candidatus liberibacter is greater than or equal to 82%. The method is an efficient, quick and environment-friendly citrus detoxification method.

A two-stage circulating fluidized bed reaction-regeneration system and method for preparing aromatics from synthesis gas, comprising an aromatization reactor and a catalyst regeneration reactor, the two are connected to each other through pipelines, and the aromatization reactor includes a first The catalyst loading area and the second catalyst loading area; the catalyst regeneration reactor includes the fourth catalyst loading area and the third catalyst loading area, and the hydrocarbon synthesis catalyst and the aromatization catalyst are filled in the aromatization reactor, and under the action of air flow, The hydrocarbon synthesis catalyst mainly stays in the lower area, and the aromatization catalyst mainly stays in the upper area, and it is announced that after the aromatization catalyst is deactivated, it first enters the low-temperature low-oxygen zone of the catalyst regeneration reactor, and then enters its high-temperature high-oxygen zone. The regeneration method of the zone, the invention realizes the control of different temperatures, and reduces the design difficulty of the catalyst.

The invention discloses a gearbox lubricating and cooling system which is characterized in that a gearbox is provided with an external oil tank, and the gearbox lubricating and cooling system comprises a first separation device and a second separation device, the first separating device and the second separating device divide an oil cavity of the gearbox and an oil cavity of the external oil tank into at least two sub-oil pools which are communicated with each other respectively. And the heating device is arranged in the sub oil pool. The heating device and mechanical loss of a transmission structure in the gearbox are used for independently heating all the sub-oil pools, the preheating efficiency of lubricating oil is improved, and the energy consumption for preheating the lubricating oil of the gearbox is reduced.

The invention relates to a diesel heating device for a vehicle. The diesel heating device for the vehicle is used for heating diesel by utilizing heat of tail gas of the vehicle, and is formed by connecting a tail gas heat collecting and exchanging box with a tail gas flow control box, wherein the tail gas heat collecting and exchanging box is provided with a plurality of concentric radial heat pipes; and the tail gas flow control box is provided with two guide flow control plates which are symmetrically arranged, have a flow guiding effect and effects of a valve, and can relatively rotate synchronously within a range of 60 degrees. An exhaust channel port of the diesel heating device can be directly connected with an exhaust channel of an engine of the vehicle, can circularly rotate around the center of the exhaust channel of the engine to be arranged in optional directions, and is connected to a fuel supply system of the engine through a fuel tube joint, when the engine works, fuel can be heated by the heat of tail gas discharged from the engine, and diesel is sufficiently isolated from the tail gas of the exhaust channel in the structure. The flowing direction and the flow of the tail gas are regulated and controlled in a stepless manner by operating an adjusting plate driving mechanism, and during running of the diesel heating device, the temperature of the fuel, input of the device or running stop are controlled. The safety of the diesel heating device is improved, and heating temperature and heating time are controllable. The diesel heating device for the vehicle can be a normal facility of the vehicle, and is not required to be detached in summers, and by the diesel heating device, the vehicle can continue using low-grade diesel in winters.

The invention discloses a method for preparing a titanium-niobium-zirconium-based hydroxyapatite biocomposite material, which belongs to the field of biomaterial preparation. The composite material prepared by the invention adopts the titanium-niobium-zirconium alloy as a matrix, and the hydroxyapatite is bioceramics; the mass of the hydroxyapatite is 10-25% of that of the titanium alloy. Its preparation process is as follows: put hydroxyapatite and titanium alloy powder into a ball mill jar, seal it with alcohol and evacuate to 20-30Pa, and dry it in a vacuum drying oven after ball milling for 6-8 hours; put the dried powder into Graphite molds are formed by cold pressing, and finally spark plasma sintering is used. During the sintering process, the sintering temperature is controlled at 1100°C~1200°C, and the temperature is first heated to 1000°C at a heating rate of 100°C / min, and then heated to 25~50°C / min. The sintering temperature is kept warm, the holding time is 6-10min, and the pressure is 50-60MPa; the biocomposite material prepared by the present invention has an elastic modulus of 25.4-45GPa, and has both excellent mechanical properties and biocompatibility; the method of the present invention is simple in process , Low preparation cost.

The invention discloses a heat-controllable energy-saving environment-friendly fuel furnace. The fuel furnace comprises a fuel furnace shell and a temperature sensor arranged in the fuel furnace shell, wherein side baffles are fixedly connected to two sides of the top of the fuel furnace shell, a rear side baffle is fixedly connected between the two side baffles at the top of the fuel furnace shell, cooking ranges are fixedly connected between the rear side baffle and the two side baffles on two sides on the top of the fuel furnace shell, and switches are arranged on the front surface, corresponding to the cooking ranges, of the fuel furnace shell. The heat-controllable energy-saving environment-friendly fuel furnace belongs to the technical field of energy-saving environment-friendly fuelfurnaces. According to the heat-controllable energy-saving environment-friendly fuel furnace, the problem that the heat cannot be controlled by virtue of an existing energy-saving environment-friendly fuel furnace is solved, the situation that the heat produced by the energy-saving environment-friendly fuel furnace cannot be controlled according to the use demands is well avoided, the use of a user is greatly facilitated, and the normal use effect is guaranteed.

The invention discloses a concentric thin-walled steel pipe welding machine, which comprises a vertically arranged welding column with a cylindrical outer wall, used to cover two welded steel pipes, and a plurality of horizontally arranged welding columns centered on the central axis of the welding column The welding heads are distributed in a circular array to realize simultaneous gathering and dispersing; the welding heads and the welding columns are respectively connected to the positive and negative poles of the power supply. When all the welding heads are gathered around the central axis of the welding column at the same time until the front end of the welding head is in contact with the welded steel pipe located on the periphery, the welding head is connected to the welding column through the welded steel pipe, the circuit is closed, and the resistance heat at the welding point is used to realize Electric welding of the welded steel pipe; the above-mentioned concentric thin-walled steel pipe welding machine can adjust the heat generated at the welding place by controlling the size of the welding current and the length of time the welding head contacts the welded steel pipe, so as to avoid the welded steel pipe being worn out due to excessive heat at the welding place through.