33results about How to "Realize segmental heating" patented technology

The invention discloses an electromagnetic heating type suction device for heating non-burning cigarettes, which comprises an end cover, a heater and an electromagnetic induction system. Inside the heater is a heating chamber for accommodating heat-not-burning cigarettes. The end cover is detachable, It can be combined and connected to the suction end of the heater; a filter tip is provided on the end cover, and the filter tip communicates with the inner cavity of the heating chamber. The hole communicates with the inner cavity of the heating chamber; the electromagnetic induction system includes a temperature control circuit and an induction coil electrically connected to the temperature control circuit, and the induction coil is wound spirally outside the heating chamber. The invention uses the electromagnetic heating method of the electromagnetic induction system to heat the heating body of the liner, and the tobacco product is heated by the liner, which can increase the heating speed and has high thermal efficiency and fast heating speed. Moreover, the heating is uniform, so that the tobacco products can be fully heated, and the waste caused by insufficient heating of the tobacco products is prevented.

The invention relates to the field of coupling of power plant power generation and clean coal production, and discloses a method and a system for coupling power plant power generation and clean coal production. The method comprises: (1) indirectly heating raw coal by using first flue channel gas from a power plant boiler, and carrying out coal conversion to obtain first flue gas, first pyrolysis gas and converted coal, wherein the final conversion temperature is 500-640 DEG C, and the conversion time is 10-60 min; (2) indirectly heating the converted coal by using second flue channel gas fromthe power plant boiler, and carrying out coal impurity removing to obtain second flue gas, second pyrolysis gas and impurity removed coal, wherein the final impurity removing temperature is 650-750 DEG C, and the impurity removing time is 10-60 min; (3) merging the first flue gas and the second flue gas into return flue gas, feeding into the power plant boiler so as to be used for power generation, merging the first pyrolysis gas and the second pyrolysis gas, and sequentially carrying out combustion and heat exchange; and (4) carrying out dry cooling on the impurity removed coal to obtain clean coal. With the method and the system of the present invention, the normal power generation of the power plant is achieved while the low-grade raw coal is produced into the clean coal.

The invention relates to the field of coupling of power plant power generation and clean coal production, and discloses a method and a system for coupling power plant power generation and clean coal production. The method comprises: (1) directly heating raw coal by using first flue channel gas with a temperature of 800-1200 DEG C from a power plant boiler, and carrying out coal conversion to obtain first raw gas and converted coal, wherein the final conversion temperature of the coal conversion is 500-640 DEG C, and the conversion time is 10-60 min; (2) directly heating the converted coal by using second flue channel gas with a temperature of 800-1200 DEG C from the power plant boiler, and carrying out coal impurity removing to obtain second raw gas and impurity removed coal, wherein the final impurity removing temperature of the coal impurity removing is 650-750 DEG C, and the impurity removing time is 10-60 h; (3) merging the first raw gas and the second raw gas, and carrying out tarremoving to obtain tar and coal gas; (4) combusting the coal gas, carrying out heat exchange, and returning the obtained steam and the tail gas to the power plant boiler so as to be used for power generation; and (5) carrying out dry cooling on the impurity removed coal to obtain clean coal. With the method and the system of the present invention, the normal power generation of the power plant isachieved while the low-grade raw coal is produced into the clean coal.

The invention provides a segmented differential electric heating cable which comprises an upper pump cable and a lower pump cable which are respectively arranged above and below an annular pump in a shaft in a crude oil lifting process, wherein the heating power per meter of the lower pump cable is greater than that of the upper pump cable to form upper and lower segmented differential heating; the heating power of the lower pump cable is at least three times the power per meter of the upper pump cable; the upper pump cable comprises a cable housing and a cable core; the cable core is made of copper; the lower pump cable comprises a cable housing and a cable core; and the cable core is made of nichrome. According to the segmented differential electric heating cable, segmented heating is performed in different positions of the shaft, so that the heating power near the shaft is effectively improved under the condition of constant power consumption, a viscosity reduction effect near the shaft is improved, the defects of the prior art are overcome, and the problem that crude oil in an extremely-viscous block oil well difficultly enters the pump is effectively solved.

The invention discloses a temperature-control ceramic heating piece which is of a plate-shaped structure composed of an upper ceramic piece 1, a middle ceramic piece 2, a lower ceramic piece 3, heating resistors, temperature control resistors, heating leads 6 and temperature control leads 7. The ceramic piece 1, the middle ceramic piece 2 and the lower ceramic piece 3 are sequentially stacked, the heating resistors are multiple in number, each heating resistor is electrically connected with one set of heating leads 6, and the temperature control resistors with the same number are correspondingly arranged. Each temperature control resistor is electrically connected with one set of temperature control leads 7, and the heating resistors and the temperature control resistors are located on the front face and the back face of the middle ceramic piece 2 respectively and are in one-to-one correspondence. According to the temperature-control ceramic heating piece, large-area heating can be achieved, heating efficiency is high, the heating resistors are arranged, and segmented heating and independent temperature control can be selectively achieved.

The invention discloses an oxidation carbonization device of coal-base activated carbon. The device comprises a first external-heating rotary kiln, a second external-heating rotary kiln and a conveyer, wherein a core tube, a plurality of partition boards and a plurality of material grabbing plates are arranged in a first cylinder of the first external-heating rotary kiln. The invention also discloses an oxidation carbonization method by using the oxidation carbonization device. The inside of the first cylinder is divided into a plurality of reaction bins, the material grabbing plates in the reaction bins are adjusted, and the raw material coal formed particles are subjected to preoxidation treatment, thereby effectively reducing the material crushing, and enhancing the yield and strength of the coal formed particles after oxidation carbonization.