30results about How to "Reduce the difficulty of operation control" patented technology

The invention relates to a method for high-temperature corrosion protection by utilizing self reaction products, in particular to anticorrosive technology for a combustion tower in production technology for preparing phosphoric anhydride or thermal phosphoric acid by combustion of yellow phosphorus. The method is to utilize the reaction products generated in the production process of preparing the phosphoric anhydride by combustion of the yellow phosphorus to realize high-temperature corrosion protection. The method is characterized by comprising: a, air pumped into the combustion tower at normal temperature and pressure is non-dried air at normal temperature and pressure; b, the wall surface of the combustion tower is cooled to reduce the temperature of the wall surface of the combustion tower during production of the phosphoric anhydride by combustion of the yellow phosphorus, and the temperature of the wall surface of the combustion tower is controlled to be less than 490 DEG C; and c, conjunctival matters are formed on the tower wall during combustion of the yellow phosphorus. Various technological conditions required by the method are easy to realize, and the actual control difficulty is small. Moreover, the method can also reduce the energy consumption and the production cost, is suitable to be applied in mass industrial production, and has great promotion value.

The invention discloses a packaging box with a 3D effect and a production method thereof. According to the packaging box with the 3D effect, a color layer is coated with a light oil layer, pearl powder is arranged in the light oil layer and distributed in a preset rule, the distribution of the pearl powder is changed through press-printing of a 3D pattern plate, and therefore a pattern with a 3D effect is formed. All materials needed by production are degradable print materials and cannot pollute the environment. Meanwhile, raster sheets for attaching are not needed, cost is reduced, operation control difficulty is lowered, and the packaging box has good market application and popularization prospects.

The invention discloses a process of calcium carbonate carbon balls for converter or electric furnace steel tapping deoxidation. Lime stones are grinded to powder with a particle size below 1 mm, are uniformly mixed with graphite carbons with a carbon content of 90%, and are pressed to calcium carbonate carbon balls with a diameter of 30 mm by a dry powder ball press, wherein the adding proportion of the lime stones is 93 mass% of the carbon balls; the adding proportion of the graphite carbons is 7 mass% of the carbon balls; the carbon content in the calcium carbonate carbon balls is controlled at 6 mass%; and in the steel tapping process of an electric furnace or a converter after smelting, 1.5 kg carbon balls are added in each tonnage of steel.

The invention belongs to the technical field of battery manufacturing, and particularly relates to film pasting equipment. The film pasting equipment comprises a rack, two film pressing rollers and two film feeding mechanisms; the rack is provided with a feeding channel and a discharging channel, and a film pasting channel is arranged between the feeding channel and the discharging channel; the two film feeding mechanisms are located on the upper side and the lower side of the film pasting channel respectively; a film pasting opening is formed between the two film pressing rollers; and the film pasting channel penetrates through the film pasting opening. The feeding channel conveys a bare material to the film pasting opening, the two film conveying mechanisms convey insulating films to the film pasting opening respectively, the two film pressing rollers press and paste the insulating films to the front face and the back face of the bare material, and therefore the films are pasted on the front face and the back face of the bare material at the same time, the insulating films can be pasted on the front face and the back face of the bare material without turning over the bare material in the film pasting process, the film pasting equipment does not need to be provided with an overturning mechanism, and therefore the structure of the film pasting equipment is simpler, the equipment operation control difficulty is reduced, and as the procedure of overturning the bare material is omitted, the film pasting efficiency is improved.

The invention discloses a generation method of synchronous fixed-frequency current phasors in a full-inverter type microgrid. A GPS satellite timing signal is used as a global synchronous reference signal so as to control the synchronous current phasors, which are constant in output frequency and coincident in phase, of all schedulable distributed power inverters in the microgrid; according to a microgrid distributed power current-voltage droop control strategy, a current amplitude instruction is generated, a complete current phasor reference instruction is obtained with the combination of a phase instruction generated according to the global synchronous reference signal, and the amplitudes of the output current phasors of the schedulable inverters are adjusted, so that the network voltageoperates within a qualified range, and a synchronous fixed-frequency current source microgrid is formed. In the generation method, the advantages that the amplitude, the frequency and the phase of the output voltage (current) of the inverters are flexibly controllable are given full play to, and the control over the operation of the microgrid is simplified into a single voltage control, so that the operation control difficulty of the full-inverter type microgrid is obviously reduced.

The invention relates to the technical field of ceramics, in particular to a method for quick glazing of a ceramic multicolor glaze. The method can greatly reduce the operation control difficulty, simplify the technological process and improve production efficiency, stabilize the product quality and reduce the production cost, and can ensure clear patterns and smooth lines. The method for quick glazing of a ceramic multicolor glaze provided by the invention includes the steps of: 1) preparation of water-based wax; 2) glazing; 3) waxing; 4) cleaning after curing of water-based wax; and 5) repeating the step 2)-step 4).

The invention discloses a combustible solid waste pyrolysis device and a pyrolysis method. The pyrolysis device comprises a fluidized bed pyrolysis reactor and a fluidized bed combustion reactor whichadopt heat carrier bed material interactive circulation. Combustible solid waste fuel is pyrolyzed in the fluidized bed pyrolysis reactor, and a heat carrier bed material overflows and is sent to thecombustion reactor through a star-shaped return feeder; the heat carrier bed material is heated again by utilizing heat released by pyrolysis oil gas combustion in the combustion reactor; and the heated heat carrier bed material enters the pyrolysis reactor again through a fluidized bed return feeder. Heat generated by combustion is transmitted to a pyrolysis process by utilizing interactive circulation of the heat carrier bed material between the two reactors, so that the problem of non-uniform temperature in reactors caused by heat transfer of conventional reactors is solved; the star-shaped return feeder for pyrolysis material returning achieves a good sealing effect, the fluidized bed material return feeder for combustion material returning avoids high oxidation and deformation of mechanical moving parts, and meanwhile the solid circulation flux can be controlled.

The invention discloses a backpressure steam turbine regenerative system with a small steam turbine and a design method of thermodynamic equilibrium of the backpressure type steam turbine regenerative system. The backpressure type steam turbine regenerative system at least comprises a backpressure type steam turbine, an auxiliary device which is connected with the backpressure type steam turbine and used for heating and deoxidizing supplemented water and returned water of the regenerative system, a water supply power device used for providing power for the supplemented water and the returned water of the system to enable the the supplemented water and the returned water to circularly flow in the regenerative system, the small steam turbine connected with the back pressure type steam turbine and used for driving the water supply power device, and a condenser connected with the small steam turbine. The condenser serves as steam exhaust condensing equipment of the small steam turbine and further serves as primary deoxidizing and heating equipment of the the supplemented water and the returned water of the whole regenerative system, steam exhaust of the small steam turbine serves as a deoxidizing steam source of the steam condenser and is completely used for deoxidizing and heating the supplemented water and the returned water of the system, the heat exchange temperature difference is reduced, no cold end loss exists, and the system efficiency is improved.

The invention provides virtual-real combination and man-machine interaction underwater remote control robot manipulator operation system and method. The system comprises a mother ship, a computer, a display, a three-dimensional somatosensory camera, an underwater robot, a manipulator and an umbilical cable. A virtual manipulator which is completely the same as the underwater entity manipulator is constructed and displayed on a screen, the three-dimensional somatosensory camera is used for capturing limb actions of arms and hands of an operator, the action intention is reflected to the virtual manipulator on the screen, the virtual manipulator is caused to stretch back and forth, move left and right and grasp, and the joint angle of the virtual manipulator is caused to change. The steps from the second step to the fourth step are continuously repeated till the operation task is completed. According to the underwater remote control robot manipulator operation method, the operation difficulty of the operator is reduced, the operation efficiency and the operation precision are improved, and the operation method has obvious advantages compared with an original method.