103results about How to "Good stripping effect" patented technology

The catalytic cracking catalyst contains medium and large pore alumina with average pore size not smaller than 3 nm 5-60 wt%, zeolite 5-60 wt%, adhesive 5-40 wt% and clay 5-85 wt%. The preparation process includes mixing the said materials, spraying, roasting, washing and drying. Compared with conventional catalyst, the catalyst has strengthened heavy oil converting capacity, obviously improved gasoline and coke selectivity and strengthened heavy metal nickel resistance.

The present invention provides one method of raising the efficiency of stripping hydrocarbon converting catalyst and its equipment. According to the present invention, catalyst particle and strippingfluid are made to counterflow through one stripper with at least two layers of stuffing. The stuffing in the stuffing layers is crossed into diamond shaped grid plate parallel to the axis of the stripper. The stripper of the present invention has high efficiency. The present invention is especially suitable for catalytic conversion process of preparing olefin, the smoke impurity content in the regenerating agent is less than 0.05 vol%, and the stripper can be reduced in volume and equipment investment obviously.

A device for tearing and ripping bags comprising a plurality of driven, endless rotary support elements supporting tearing and ripping elements, wherein the rotary support elements are disposed sequentially along the axis of rotation. A plurality of covering and/or stripping elements is in each case disposed at least at one of the neighboring rotary support elements and the covering and/or stripping elements overlap at least in part a sequentially neighboring rotary support element. The covering and/or stripping elements on a rotary support element are aligned with the tangential motion advance direction in order to improve the device for preventing that long, tear-resistant pieces end up in the slot between the rotary support elements and bring the ripping device to a standstill based on a winding-up long tear-resistant pieces. For this purpose, the covering and/or stripping elements are disposed at a distance relative to each other.

The invention discloses a method for selectively extracting and recycling gallium, germanium and indium from sulfuric acid leach liquid of zinc displacement residues. The method includes selectively extracting the germanium from the sulfuric acid leach liquid of the zinc displacement residues by the aid of synergistic extraction systems comprising hydroxamic chelate extraction agents and acidic phosphorus type extraction agents; recycling acid from germanium extraction raffinate by the aid of a diffusion dialysis process and finely adjusting the germanium extraction raffinate until a pH (potential of hydrogen) value of the germanium extraction raffinate is appropriate; selectively extracting the gallium and the indium from the germanium extraction raffinate by the aid of synergistic extraction systems comprising hydroxamic chelate extraction agents and carboxylic acid extraction agents. The method has the advantages that the germanium, the gallium and the indium can be effectively separated from foreign metal ions of iron, zinc, cadmium, nickel, cobalt and the like; the germanium, the gallium and the indium are high in recycling rate, good germanium, gallium, indium and foreign matter separation effects can be realized, technological processes are short, the extraction agents are long in service life and low in loss, and the method is low in cost and easy to industrialize.

The invention relates to a vehicle wire harness girdling and peeling device which comprises a first support plate. Two moving lugs are respectively arranged on the side wall of the first support plate, and a movable screw is arranged between the two moving lugs through a bearing. A moving motor is arranged on the right end of the movable screw through a coupling, and the moving motor is arranged on a motor bracket. A moving block is arranged on the central section of the movable screw through threads, the upper and lower ends of the moving block are symmetrically provided with two moving slide bars, and the two moving slide bars are respectively mounted on two first linear slide rails. The two ends of each first linear slide rail is mounted on the side wall of the first support plate through screws. Four fixing posts are symmetrically welded on the side wall of the moving block, and a mounting plate is welded on the tail end of the four fixing posts. A wire peeling mechanism is arranged on the left side of the side wall of the mounting plate, and a girdling mechanism is arranged on the right side of the side wall of the mounting plate. Integrated processing function of automatically girdling and wire-peeling can be realized during vehicle wire harness processing.

The invention relates to a system and method for preparing coal tar, gas and semi-coke by activating coal gas and flash pyrolysing coal with a solid heat carrier. The system comprises a raw coal primary processing apparatus, a pyrolytic reaction separator, a semi-coke heating separator, a recycling apparatus, a coak tar recovering apparatus and a semi-coke cooling apparatus; a part of semi-coke powder discharged from the pyrolytic reaction separator enters the semi-coke heating separator, high-temperature smoke discharged from the semi-coke heating separator enters the recycling apparatus, the coal tar recovering apparatus produces coal tar and coal gas, and the semi-coke cooling apparatus produces semi-coke. In the existing coal tar preparation method, the coal pyrolytic optimization of the coal is not good, so that the existing coat tar preparation method has the technical problems of low oil yield, high investment and high energy consumption. The system for preparing the coal tar, gas and semi-coke by activating the coal gas and flash pyrolysing the coal with the solid heat carrier is rapid in pyrolysis, rapid in output and rapid in cooling.

The invention relates to a method for producing low-sulfur gasoline by non-hydroforming sulfur and alcohol removal, which comprises the following steps that: (1) gasoline raw materials are fractionated into light and heavy gasoline fractions, the light gasoline fractions are subjected to alkali washing sulfur and alcohol removal, and the heavy gasoline fractions are subjected to hydrogen desulfurization; and (2) the heavy gasoline fractions after the hydrogen desulfurization are introduced into a counter flow contact reactor, sulfur and alcohol removal catalysts are filled in positions under a material inlet of the reactor, steam stripping media which do not contain hydrogen gas are introduced into the bottom of the reactor, liquid phase ingredients of the heavy gasoline fractions in the counter flow reactor are in counter flow contact with the steam stripping media, the regeneration sulfur and alcohol in the materials are decomposed into olefin and hydrogen sulphide on catalysts, the heavy gasoline heavy ingredients after the sulfur and alcohol removal flow out from the tower bottom, heavy gasoline light ingredients, steam stripping media and hydrogen sulphide gas are discharged from the top of the reactor, the heavy gasoline light ingredients after the H2S removal, the heavy gasoline heavy ingredients after the sulfur and alcohol removal and the light gasoline fraction after the alkali washing are mixed to obtain the gasoline products. The gasoline product produced by adopting the method provided by the invention belongs to the gasoline product with the advantages that the sulfur and alcohol content is lower than 3mug/g, the sulfur content meets the Euro IV discharge standard, and in addition, the octane number loss is little.

The invention discloses a crude oil deep drawing process method. Partial pressure reduction slag oil cyclically returns to a position in front of a pressure reduction furnace to be mixed with heavy oil at the bottom of a normal pressure distillation tower for entering a pressure reduction flash distillation tower arranged in front of the pressure reduction furnace, high-temperature hydrogen or nitrogen or overheated steam accounting for 1 percent to 3 percent of the mass of inlet materials is introduced into the tower bottom of the pressure reduction flash distillation tower, the tower top gas phase of the pressure reduction flash distillation tower is converted into a liquid phase to be used as products through heat exchange and condensing, bottom oil of the pressure reduction flash distillation tower is introduced into the pressure reduction distillation tower for pressure reduction distillation after being heated through the pressure reduction furnace, pressure reduction fraction oil is extracted out from the side line of the pressure reduction distillation tower, pressure reduction slag oil is extracted from the tower bottom of the pressure reduction distillation tower, a part of the pressure reduction slag oil is sent out of the device, and a part of the pressure reduction slag oil cyclically returns to the pressure reduction flash distillation tower for recycling. In the method, heat carried by the high-temperature cyclic pressure reduction slag oil and the steam extraction effect of the high-temperature nitrogen are sufficiently utilized, and lighter fraction in the normal bottom oil is evaporated out in the pressure reduction flash distillation tower. The yield of the pressure reduction slag oil is reduced, and in addition, the load of the pressure reduction furnace is reduced.

The invention discloses a crude oil pressure-reduced distillation method and a crude oil pressure-reduced distillation device. A flash tower is arranged between a reduced-pressure furnace and a reduced-pressure distillation tower, an oil transfer line is eliminated, a reduced-pressure distillation raw material is heated in the reduced-pressure furnace and directly enter the flash tower, a small amount of stripping gas is introduced into the flash tower, and the liquid phase, namely flash bottom oil, obtained by gas-liquid separation in the flash tower is introduced into the reduced-pressure distillation tower; and a gas phase, namely flash top gas, discharged from the top of the flash tower is condensed into a liquid phase to be led out of the device. A high-temperature hydrogen or inert gas is introduced into the bottom of the flash tower. When the pressure-reduced distillation method and the pressure-reduced distillation device, in which the flash tower for high-temperature hydrogen or inert gas stripping flash tower is arranged behind the reduced-pressure furnace, are used, the yield of a reduced-pressure fraction oil is increased, the conventional reduced-pressure oil transfer line is not used, the operation load of the reduced-pressure furnace is lowered, and the tower diameter of the reduced-pressure tower can be reduced properly; therefore, equipment investment is reduced, and operation cost is reduced.

The invention discloses a multicomponent fiber carding machine, comprising a feeding mechanism, a carding mechanism, a stripping mechanism and a coiler mechanism. The carding machine is characterizedin that the carding mechanism comprises a cylinder, at least a work roll and wiper roll set, an upper rotating cover board and a front fixed cover board, wherein, one work roll and wiper roll set is provided with a work roll and a wiper roll; a rear carding area is formed between the work roll and wiper roll set and the cylinder, an upper carding area is formed between the upper rotating cover board and the cylinder and a front carding area is formed between the front fixed cover board and the cylinder. Under the premise of ensuring the multicomponent fiber carding effect, the carding machinenot only reduces the space occupied by equipment and greatly lowers the damage rate of the fiber, but also drastically increases the production efficiency.

The invention discloses an ore feeding hopper device which is low in cost, easy to clean and capable of achieving continuous and stable discharging. The ore feeding hopper device comprises a hopper body, wherein the lower end of the hopper body is provided with a discharging port. The ore feeding hopper device further comprises at least two barrier plate layers and at least one stripping device, wherein the barrier plate layers are arranged along the inner circumference of the hopper body by one circle and sequentially arranged in the hopper body from bottom to top in a spaced mode, and the included angle a between the upper surface of each barrier plate layer and the vertical upward direction is smaller than or equal to 90 degrees; the stripping device is installed on the outer wall of the hopper body and can vibrate and/or rap the hopper body so as to enable ore to fall off. The barrier plate layers indirectly improve abrasion resistance of the hopper device, cost is lower, and the hopper device is good in abrasion resistance, easier to manufacture and suitable for application and popularization. The stripping device can guarantee continuity and stability of discharging and meanwhile facilitates cleaning and maintaining of the interior of the hopper device.

The invention relates to a thermal wire stripping apparatus which includes a supporting pedestal which is provided with a wire mechanism and a wire scalding mechanism. The wire mechanism is intended for transporting an electrical wire. The wire scalding mechanism is disposed at a position corresponding to the head end of the wire mechanism, and is intended for clamping a wire sheath of the electrical wire and conducting thermal scalding. The tail end of the wire mechanism is connected to a rotating apparatus which drives the wire mechanism to rotate the electrical wire back and forth. The head end of the wire mechanism is an electrical wire output end, and the tail end is and an electrical wire input end. When the head end of the wire mechanism outputs an electrical wire, and the wire scalding mechanism clamps the electrical wire and thermally scalds the electrical wire, the rotating apparatus drives the wire mechanism to rotate the electrical wire back and forth, such that the wire sheath of the electrical wire is evenly heated at 360 degrees and is fused. According to the invention, the apparatus herein can rotate the electrical wire in the process of thermal stripping, the wire sheath of the electrical wire can be evenly heated at 360 degrees on the wire scalding mechanism and be fused in real sense, thus realizing automatic wire stripping. The apparatus herein has the characteristics of simple design, scientific structure, high automation and excellent wire stripping effects. The apparatus herein can be designated to strip fiber braided wires, can greatly increase production efficiency and is applicable to promotion for enterprises.

The invention relates to a full-automatic waste tire circular-cutting and tire bead cutting and wire stripping system. The system comprises a tire circular-cutting and conveying device, a tire bead carrying device and a tire bead cutting and wire stripping device; the tire circular-cutting and conveying device comprises a front-end conveying mechanism, a rotating carrying mechanism for carrying and assisting in circular cutting, a tire bead circular-cutting mechanism for cutting off tire beads of waste tires and a back-end conveying mechanism for conveying out the waste tires with the tire beads cut; the tire bead carrying device is arranged on one side of a tire bead circular-cutting device, assists the tire bead circular-cutting device in tire bead cutting and conveys the tire beads cuteach time to a tire bead cutting and wire stripping module; the tire bead cutting and wire stripping device comprises a workbench mechanism, a tire bead cutting mechanism, a tire bead pulling mechanism and a tire bead wire stripping mechanism; the tire bead cutting mechanism is arranged on the workbench mechanism and is used for cutting off and leveling the tire beads; the tire bead pulling mechanism is used for conveying the cut and leveled tire beads to the tire bead wire stripping mechanism; and the tire bead wire stripping mechanism is used for stripping steel wires out of the tire beads.The system has the beneficial effects that a relatively perfect waste tire processing system and manner is provided and has the relatively high scientificity and logicality.

The invention discloses a Fischer-Tropsch synthesis system and method. The Fischer-Tropsch synthesis system comprises a slurry bed reactor, a first filtering device, a first separation device, a second separation device and a stripping tower. According to the system and the method, all devices are matched, so that fine catalyst particles in the reactor can be effectively removed, the fine catalyst particles in a discharged product can be effectively separated, a separation process is scientific and reasonable in design, the problems of aggregation of the fine catalyst particles in the slurry bed reactor and difficulty in the separation of the fine catalyst particles in the synthesized product are solved, and the Fischer-Tropsch synthesis system can run continuously and stably.

The invention belongs to the field of bamboo processing, and particularly relates to raw bamboo slitting equipment capable of achieving quick removal of a bamboo joint. The raw bamboo slitting equipment comprises a cylinder, and the barrel is fixedly connected with a cutting shaft; the cutting shaft is provided with a plurality of groups of cutting blades, and the barrel is movably connected witha clamping device; and the clamping device comprises a transmission mechanism and a clamping mechanism. The transmission mechanism is fixedly connected with the clamping mechanism, and the clamping mechanism is rotationally connected with a telescopic blade. According to the raw bamboo slitting equipment capable of achieving quick removal of the bamboo joint, the bamboo joint on the edge of a rawbamboo can be removed to a certain extent in the slitting process, and the processing efficiency of raw bamboo slitting is improved, and the raw bamboo slitting equipment is suitable for promotion widely.

The invention belongs to the technical field of separation and purification of rare earth, and particularly relates to an environment-friendly high-purity cerium dioxide extraction method. The methodcomprises the following steps: (1) extracting: mixing a cerium chloride material liquid and an extracting agent at the volume ratio of 1:(1.2-1.5), extracting, separating, adding hydrotalcite whose weight is 4-6% of the weight of the extracting agent at the same time, conducting ultrasonic dispersion for 20-30 minutes, leaving to stand, then separating, recycling a solid phase, inputting an organic phase into a reextraction procedure; (2) reextracting: taking an oxalic acid solution, wherein the volume of the oxalic acid solution is 1.5-2.0 times the volume of the organic phase, reextracting at the temperature of 50-60 DEG C, conducting ultrasonic dispersion for 20-30 minutes, filtering to obtain a precipitate; (3) oxidizing: firing and oxidizing the obtained precipitate at the temperatureof 1000-1100 DEG C for 12-15 hours, and obtaining the high-purity cerium dioxide. The method abandons the traditional alkaline saponification causing serious ammonia nitrogen pollution, and the artificial hydrotalcite is used to implement ion exchange in the extraction process, so that the balanced acidity of the system is maintained, and the environmental pollution is reduced.