40results about How to "Increase effective production time" patented technology

The invention provides a constant-temperature inducing maize-borer oophagous trichogrammae diapause storage method. The collected maize-borer oophagous trichogrammaes which have developed to the ovum telophase from the middle larva stage adopt constant-temperature inducing maize-borer oophagous trichogrammae diapause, and are stored under a specific temperature and humidity, and the development of the maize-borer oophagous trichogrammae is restored by changing the prior temperature to use. The method is applicable to oophagous trichogrammae breeding by using small gelechiid ovum; the technology matches large-scale oophagous trichogrammae production; the method is applicable to long-term production and storage of maize-borer oophagous trichogrammaes; thereby, sufficient maize-borer oophagous trichogrammaes are prepared for pest control, and the method can also be used to store breeding maize-borer oophagous trichogrammaes.

The invention relates to a method for preparing a vulcanization type gasoline hydrogenation upgrading catalyst. Gasoline hydrogenation catalysts are treated by vulcanizing agents with multiple sulfur ions and organic nitride which is used as a passivator at the low temperatures, active components in the gasoline hydrogenation catalysts comprise a type or a plurality of types of Mo and W of VI B groups and Co and Ni of VIII B groups, and stabilizers comprise a type or a plurality of types of Zn and Cd of II B groups, Na and K of I A groups and rare earth metal La and Ce. The method has the advantages that cascade full vulcanization can be carried out on metal oxide or precursors of the metal oxide, and strong acidic sites in ZSM-5 molecular sieve composite carriers can be selectively passivated; the vulcanization type gasoline hydrogenation upgrading catalyst prepared by the aid of the method is short in on-stream time, high in hydrogenation and olefin reduction upgrading activity, selectivity, carbon deposition resistance and liquid yield and low in octane number loss, and accordingly the method and the vulcanization type gasoline hydrogenation upgrading catalyst are particularly applicable to producing clean gasoline components from inferiorly catalytically cracked gasoline by means of hydrogenation and olefin reduction upgrading at a low cost.

This invention provides a method and a device for separating waste alkali of cyclohexane oxidation liquid by a spiral-flow coalescence serial combination technology, which separates it in three steps in gravity sedimentation tank, a cyclone separator and a coalescence separator to separate it completely, which overcomes the shortcomings of gravity deposition method and the coalescence separation method and prolongs the effective production time of alkyl distillation tower greatly.

The invention relates to a method of producing monochlorophthalic anhydride by liquid-phase continuous oxidization, using monochloro-ortho-xylene as raw material, using cobalt acetate and manganese acetate as catalyst, using acetylene tetrachloride and hydrogen bromide as accelerant, feeding the above materials in proportion into a multistage serial stirring reaction kettle, and at a certain pressure and temperature, simultaneously charging compressed air to make the liquid-phase continuous oxidization reaction so as to make monochlorophthalic acid, which passes through a medium jar to a flash vaporization tank for temperature and pressure reduction, then obtaining crude anhydride by a multistage serial anhydride-forming reaction kettle dehydrating and deacidifying, continuously rectifying to obtain refined anhydride, and finally flaking to make the finished product. The waste residues are continuously discharged. The acetic acid is rectified and circulates. It adopts multistage serial stirring reaction kettle and multiage anhydride-forming reaction kettle, and the continuity of the reacting steps does not require repeated pressure boost, and temperature increase, and the production indicator is stable.

The invention relates to a pressurized rocking frame of a ring spinning frame drafting system. The pressurized rocking frame comprises a rocking frame base and a rocking frame body, wherein the rocking frame body is arranged on the rocking frame base. The pressurized rocking frame further comprises multiple air cylinder pressurizing devices, wherein the multiple air cylinder pressurizing devices are arranged and installed on the rocking frame body and comprise assembling supports, air cylinders, pistons with rods, pressurizing rods and holding jaws. The assembling supports are fixed on the rocking frame body through bolts, the air cylinders are fixed on the assembling supports, the piston ends of the pistons with the rods are arranged in the air cylinders, the other end of each of the pistons with the rods are arranged above the pressurizing rods, the pressurizing rods are located under the air cylinder, the holding jaws are arranged on the pressurizing rods, and the air cylinders of the air cylinder pressurizing devices are respectively provided with an independent air pressure source connecting end. By adopting the pressurized rocking frame, the consistency of pressurized pressure of each rocking frame set is improved, unified pressure regulation and stepless pressure regulation of the same pressurized positions of all of rocking frames of a whole machine can be achieved, and the spinning quality is improved. In addition, the production efficiency is effectively improved, and the labor intensity is reduced.

The invention provides a granulator comprising double tubular reactors. A main beam is arranged on the upper part of the granulator. A No.1 tubular reactor and a No.2 tubular reactor are respectively arranged on the two opposite sides of the granulator. According to the No.1 tubular reactor, an ammonia distributor is inserted into a granulator feed layer through a plow-type steel part welded on the main beam. A liquid ammonia delivery pipe is arranged on the end of the No.1 tubular reactor positioned on the outer side of the granulator. According to the No.2 tubular reactor, an ammonia distributor is inserted into a granulator feed layer through a plow-type steel part welded on the main beam. A liquid ammonia delivery pipe is arranged on the end of the No.2 tubular reactor positioned on the outer side of the granulator. A washing liquid circulation tank is respectively connected to the upper parts of the No.1 tubular reactor and the No.2 tubular reactor through tubular reactor feeding pumps. The working pressure of the equipment is lower than that of single tubular reactors. A blocking frequency is substantially reduced. Single tubular reactor purging frequency is reduced to once per shift. A cylinder scale phenomenon close to a spray point is inhibited.

The present invention relates to a process and an apparatus for separating and recovering the waste alkali from a cyclohexane oxidation solution, and provides a process and an apparatus for separating and recovering the waste alkali from a cyclohexane oxidation solution. According to the invention, a gradient combination of the gravity separation technique, the vortex separation technique and the coalescence separation technique is used to carry out fine separation of the waste alkali liquor from the cyclohexane oxidation solution. The purified cyclohexane oxidation solution is fed into a down-stream apparatus. Most of the waste alkali liquor thus separated is recycled, while the remaining is expelled. The expelled waste alkali liquor is incinerated in an incinerator, followed by recovering the molten species using a pneumatic pulverization process. According to the invention, the content of Na⁺ in the cyclohexane oxidation solution fed into the alkane tower can be lowered to less than 3 mg/L, and the molten species resulting from incineration can be recovered 100%. Thus, risk of environmental pollution by the waste alkali liquor is substantially eliminated. While the invention is well suited to separate and recover the waste alkali liquor from a cyclohexane oxidation solution, it may be adapted to other chemical engineering systems for separating and recovering waste alkali liquor as well.

The invention relates to the field of vapor deposition and discloses continuous vapor deposition equipment. The equipment comprises a main cavity, a linear evaporation source located in the main cavity, a linear crucible bearing platform for bearing a linear crucible and a lifting unit and further comprises two linear crucible vacuum transfer cavities and carrying units located in the linear crucible vacuum transfer cavities correspondingly. The linear crucible vacuum transfer cavities are used for storing the linear crucible bearing platform. The carrying units are used for transferring the linear crucible bearing platform between the linear crucible vacuum transfer cavities and the lifting unit. The lifting unit is used for enabling the linear crucible platform to be separated from or beplaced into the linear evaporation source. The linear crucible vacuum transfer cavities and the main cavity are provided with independent vaccumizing devices correspondingly. By the adoption of the technical scheme, product performance is improved, effective production time of the equipment is prolonged, and the purpose of long-time continuous production is achieved.

The invention discloses a well drilling method and device, and belongs to the field of oil exploitation. The well drilling method comprises the following steps that (1) a guide assembly is connected, the guide assembly is tripped into a designated position of a casing pipe, and the guide assembly comprises an oil pipe and a guider; (2) a trepanning unit is lowered into the oil pipe through a continuous pipe, a trepanning drill bit of the trepanning unit is made to punch the casing pipe through the guider so that a first through hole can be formed, and the diameter of the trepanning drill bit ranges from 30 mm to 80 mm; (3) a drilling unit is lowered into the oil pipe through a continuous pipe, a drilling bit of the drilling unit is made to penetrate through the guider and the first through hole to punch the stratum so as to form a horizontal well hole, the diameter of the drilling bit is not larger than that of the trepanning bit, drilling fluid circulates in the drilling bit, and the horizontal well hole is formed in the oil pipe. The pressure of the drilling fluid is 40 to 60 Mpa.

The invention belongs to the field of printer ink cartridges, and relates to a heat-seal positioning system of a printer ink cartridge. The heat-seal positioning system comprises a shell, and is characterized in that the shell is provided with an inlet and outlet, a cavity is arranged in the shell, the shell is provided with a short round hole, a long cylinder is arranged in the short round hole in a sliding manner, a connecting spring is connected between the long cylinder and the shell, a motor is fixedly arranged on the upper side of the shell, a U-shaped metal plate is fixedly arranged on the upper surface of the cavity, and fixing rods are fixedly arranged on the lower surface of the cavity in an annular array mode. When the printer ink box powder filling production is carried out, accurate positioning is carried out on the contact surface, which is in contact with the ink box, of a triangular chuck-like mechanism of the ink box, the ink box is treated by adopting a heating and sealing mode at the powder filling position, and the ink box powder can be effectively prevented from flowing out.

The invention relates to a flow control screen for an oil well. The flow control screen has adjustable flow conductivity. The flow control screen includes one or more fluid valves each having a respective predetermined opening threshold and configured to open to open a corresponding fluid channel when a fluid pressure difference between a fluid pressure of a first side of the fluid valve and a fluid pressure of a second side of the fluid valve is greater than or equal to the respective predetermined opening threshold. The invention also relates to an oil well structure with the flow control screen, a method for operating the oil well structure and a method for modifying the oil well structure.