31results about How to "Guaranteed operating rate" patented technology

The invention provides a method for obtaining the concoction soft component of high-grade road asphalt, which comprises the following steps that: deasphalted oil produced by a solvent deasphalting process enters an extraction tower from the lower part of the extraction tower, a solvent enters the extraction tower from the upper part of the extraction tower, and the deasphalted oil and the solvent contact adversely in the extraction tower for carrying out extraction; raffinate oil is obtained after raffinate extracted from the top of the extraction tower is separated from the solvent; and extract oil is obtained after an extract extracted from the bottom of the extraction tower is separated from the solvent, and is used as the concoction soft component of the high-grade road asphalt. The invention can solve the problem that the deoiled hard asphalt of the solvent deasphalting process is difficult to utilize, and makes full use of the deoiled hard asphalt with low additional value to produce the high-grade road asphalt with high additional value; and meanwhile, the invention can improve the property of the deasphalted oil and provides a raw material with better performance for a subsequent processing process.

The invention relates to a filter pressing technology and control system. The filter pressing technology and control system comprises filter pressing machine sets, a feeding system, a flushing water system, a material discharging and liquid draining system, a compressed air system and an electrical control system, and is characterized in that a plurality of groups of feeding pumps are arranged at the outlet of a feeding stirring groove of the feeding system, each feeding pump is connected with each filter pressing machine in each filter pressing machine set through a spherical reversing check valve, a plurality of flushing water pumps are arranged at the outlet of a flushing water tank of the flushing water system, each filter pressing machine set share one flushing water pump, flushing water inlet pipes in each filter pressing machine set are connected to flushing water pump water outlet pipes in parallel, an air storage tank for an instrument and an air storage tank for blowing and drying are arranged at the outlet of an air compressor of the compressed air system, blowing and drying air inlet pipes of the filter pressing machines are connected to the outlet pipeline of the air storage tank for blowing and drying in parallel, and air inlet pipes for the instrument of the filter pressing machines are connected to the outlet pipeline of air handling equipment in parallel. The system is low in equipment and capital construction investment, high in operation rate, simple to operate and high in degree of automation.

The invention discloses a rolling mill housing with surface hardened layers. The rolling mill housing with the surface hardened layers comprises a housing body, wherein a window is formed in the housing body. A first working surface corresponding to a lower yoke contacting position of the housing and a second working surface corresponding to a sliding plate contacting position are arranged on a frame wall of the window, and the first working surface and the second working surface are both provided with surface hardened layers. A third working surface corresponding to a screw-down nut contacting position is further arranged on the frame wall of the window and a fourth working surface corresponding to an upper yoke contacting position of the housing and a fifth working surface corresponding to a working roller bending roller balance device contacting position are further arranged. The third, the fourth and the fifth working surface are provided with surface hardened layers. The rolling mill housing with the surface hardened layers protects the working surfaces of the housing and reduces the increasing of a gap of the rolling mill due to injury of the housing surface, the rolling mill is stable in working, impact is reduced, and probability of torsional vibration of a transmission system is reduced. In addition, the service life is prolonged, cost of online repair when a defect occurs is reduced, servicing time is reduced, servicing cost is reduced, and operation rate and economic benefit are improved.

The invention discloses a rotary RTO rotating valve and a heat storage type organic waste gas incineration furnace. The rotary RTO rotating valve comprises a stator, a rotor and an air separation area; an inner cylinder of the stator and an inner cylinder of the rotor are connected through an inner cylinder seal soft connecting module; and an outer cylinder of the stator and an outer cylinder of the rotor are connected through an outer cylinder seal soft connecting module. The lower stator and rotor are not hardly fitted in synchronous rotating operation; through this structure, the wear of outer cylinder sealing rings and inner cylinder sealing rings is delayed, and the service life is prolonged; and through adding of the seal soft connecting mechanisms, the manual maintenance convenienceis greatly improved.

The invention provides a material circulating system for dry desulfurization. The material circulating system at least comprises an ash hopper, an aerating box, a chute and a pin pump. A discharging port of the ash hopper is connected with the top face of the aerating box and further provided with a gate valve. One side of the aerating box is connected with the chute through a material discharging pipe which is provided with a material circulating valve, and the other side of the aerating box is connected with the pin pump through an ash discharging pipe which is provided with an ash discharging pneumatic valve. The material discharging pipe is formed by connecting a transverse pipe and a vertical pipe, the transverse pipe is connected with the side wall of the aerating box, the vertical pipe is connected with the chute, a blockage removing hole is formed in the side wall of the vertical pipe, and the central line of the blockage removing hole coincides with the central line of the transverse pipe. The blockage removing hole is detachably provided with a sealing cover. Blockage removing can be completed online through the blockage removing hole, the maintenance time is shortened, and thus emission of atmospheric pollutants can be reduced to the maximum while the running rate of a desulfurization system is ensured.

The invention relates to a separation technology of ground surface skarn type hematite. The technology is characterized by comprising coarse breaking work, ore washing desliming and dry and wet separation work, medium breaking work, wet type screening work and continuous two-segment water removal and grading work. According to the technology, grade of raw ore with 53 to 55% iron grade can be improved to 58% successfully without grinding and separation, the comprehensive concentrate recycling rate can reach 73 to 77%, the comprehensive iron recovery rate is much higher than the 70% recovery rate of traditional hematite mineral separation, the good mineral separation index is obtained, and in order to obtain the higher earnings, the guarantee is provided. The raw ore is subject to effectivedesliming, the slurry blockage problem can be solved, and two kinds of produced raw materials of smelting and sintering ores can be directly transported outwards.

The invention discloses a by-pass metal removing device. The by-pass metal removing device comprises a first metal detector, a control cabinet, a driving mechanism, a metal removing mechanism, a metal discharging part and a second metal detector; the first metal detector is used for detecting metal impurities on a conveying track and sends first alarm signals; the control cabinet receives the first alarm signals and sends first control commands to the driving mechanism; the driving mechanism drives the metal removing mechanism to move according to the first control commands, so that a conveying path of the metal removing mechanism is separated from the conveying track, and the metal impurities are conveyed along the conveying path of the metal removing mechanism and fall into the metal discharging part; the second metal detector is used for detecting the metal impurities falling into the metal discharging part and sends second alarm signals; the control cabinet receives the second alarm signals and sends second control commands to the driving mechanism; and the driving mechanism drives the metal removing mechanism to move according to the second control commands, so that the conveying path of the metal removing mechanism overlaps with the conveying track.

The invention discloses a furnace type cooling and heat exchange device for sintered ores and relates to the technical field of cooling devices of sintered ores. A single-roll crusher is arranged at an outlet of a sintering machine, a flap valve is arranged under the single-roll crusher, the bottom of the flap valve is arranged at the connection position of a furnace cooling system chute and an annular cooling system chute / a belt cooling system chute, the flap valve can be switched between the furnace cooling system chute and the annular cooling system chute / the belt cooling system chute, a hot vibration screen also serves as the bottom wall of the furnace cooling system chute, a hot return mine chute is connected under the hot vibration screen and is connected with the annular cooling system chute / the belt cooling system chute, an outlet of the furnace cooling system chute is connected with one end of a chain-scraper conveyor, the other end of the chain-scraper conveyor is connected with a fire door of a cooling furnace, and a heat-insulating cover is arranged above the chain-scraper conveyor. By the aid of the device, the cooling effect and the waste heat utilization ratio of sintered ores are effectively improved, and the furnace cooling system device can be arranged in a remote distance without being limited by fields.

The invention provides a mine intelligent iron removal system and an iron removal method. When the metal detector detects that a metal object passes through the feeding belt, the metal detector sendsan iron arrival signal to a controller; the controller controls an iron removal mechanism to accelerate firstly; when the speed is increased to be the same as that of the feeding belt, materials are grabbed; at the moment, the iron removal mechanism and the feeding belt are relatively static; the problem that the metal object cannot be grabbed since the feeding belt and the iron removal mechanismmove in the material grabbing process of the iron removal mechanism. Moreover, due to the fact that a traditional magnetic iron removal principle is not adopted, non-ferromagnetic metal or weakly magnetic metal such as high manganese steel, alloy steel and stainless steel can be effectively removed, and metal objects on the middle lower portion and the lower portion of a material layer of the beltconveyor and large metal objects on the middle portion and the lower portion of the material layer of the belt conveyor can be removed. The adaptability to metal objects is high, and the problems offrequent shutdown and manual picking-out of the belt conveyor due to incomplete iron removal of a traditional magnetic iron remover are solved.