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104results about How to "Perfect process" patented technology

Treatment method of oily sludge

The invention relates to a treatment method of oily sludge, which is particularly suitable for oily sludge generated during the sewage treatment process of a refinery plant. The method comprises the following steps: after centrifugal dewatering, the oily sludge is dehydrated through rotary dehydration equipment under the control of a certain negative pressure and a certain temperature, so as to destroy the water, oil and solid stable system in the oily sludge; parts of oil and water in the oily sludge are distilled out; the coke generated after dehydration is extracted with a solvent; after extraction, the material undergoes the solid-liquid separation; the separated liquid phase is delivered to a delayed coking device; the separated solid phase is dehydrated to form the residues that meet the discharge standards for solids; and the wastewater generated during the process is biochemically treated and then discharged after reaching the discharge standards. The invention is mainly characterized in that the sludge treatment process is short, the speeds and the efficiencies of sludge dehydration and extraction are high, the effect is good, the operational condition is moderate, the energy consumption is reduced, the oily sludge treatment effect is good, and the operating maintenance of the equipment is simple.
Owner:PETROCHINA CO LTD

Passive smart lock system

InactiveCN103489245ASolve too manySolve the problem of easy duplication of keysIndividual entry/exit registersAccess managementMobile phone
The invention provides a passive smart lock system, comprising a background system, a mobile phone and an electronic lock, wherein the electronic lock is arranged on a door of a locked object. The passive smart lock system is characterized in that the mobile phone and the electronic lock are provided with NFC (near field communication) chips; the electronic lock also comprises a control chip, an electromagnetic valve, a power supply device and a spring bolt; each NFC chip controls the electromagnetic valve through the control chip; the electromagnetic valve controls the spring bolt; the background system is provided with a signal output end for transmitting a signal to the mobile phone, and is also provided with a signal receiving end for receiving the signal from the locked object; each lock is provided with the NFC chip, so as to achieve identity authentication of each lock. The problems of overlarge number of keys, easy duplication of the keys, difficult key transmission, absence of authority differentiation in an unlocking process, absence of an unlocking record and the like are effectively solved; the passive smart lock system can remotely authorize. Therefore, an effective technical means is provided for strengthening personnel access management and equipment operation management, and improving the work efficiency.
Owner:SUZHOU NEW DACHENG TECH DEV

Flue gas desulfurization method and device

The invention discloses a flue gas desulfurization method. The method is characterized by comprising the following steps of: 1) washing and cooling: washing and cooling the flue gas entering a desulfurization tower; 2) separation: separating the dust-containing solid-liquid mixture obtained in the step 1) into dust, ammonium salt granules and ammonium sulfate-containing aqueous solution; 3) absorption: spraying a desulfurizing agent to the purified flue gas obtained in the step 1), and performing gas-liquid countercurrent contact; 4) demisting: removing dust, mist foam and liquid drops entrained in the gas through a demister; and 5) condensation: delivering the gas from the demister to a condensation device, condensing the gas and discharging the condensed gas. The invention also discloses a desulfurization device for the flue gas desulfurization method. The desulfurization device comprises the condensation device, the desulfurization tower, an oxidation device, a desulfurizing agent supply device and a water supply device. The method provided by the invention purifies the flue gas; the discharged gas contains little water, dust and ammonia; byproducts such as ammonium sulfite, ammonium sulfate and the like can be produced; and equipment cost and operating cost for desorption and hydrolysis of urea waste solution are saved at the same time.
Owner:山东华鲁恒升集团德化设计研究有限公司

Braille printing technology

The invention relates to a braille printing technology, comprising the following steps: professional braille typesetting, that is, the automation of letter input, compilation, typesetting, inspection, collation and even output of the braille in the publishing process is realized through the professional braille and the Chinese characters comparison compilation and typesetting system provided by the Chinese braille computer system; film outputting - the laser typesetting machine is used for putting out the braille symbol in the graphic form; silk screen forme curing - the tension is controlled within 0.8-1.1 (N / cm), the adopted mesh number is 40-60 meshes / centimeters, extrusion coating is 12-16 layers with a 0.2 - 0.5mm thickness; preparing printing ink with uv varnish material and thickener; page making up and adjusting; oil layer extrusion coating; infrared heating and leveling; ultraviolet uv solidifying. The braille printing technology is rapid in print speed, good in printed letters and adhesion of patterns, colorless and transparent, press resistant, wear resistant, low in cost, etc. The braille can be directly printed on reading matters with letters. The double-side printing can be performed and the printing quality is not affected. The ideal braille printing effect can be acquired. The printing can be performed on the ordinary printing materials. The printing carrier of the braille is widened.
Owner:张小文

Inner loop liquefaction biological reaction apparatus for wastewater treatment

The invention relates to an internal circulation fluidized bioreactor used for the sewage treatment, a pool body thereof is internally provided with a fluidized aerobic reaction zone, a settlement collecting area and an anoxic reaction zone, the bottom of the pool body is provided with an aeration device, the top part of the settlement collecting area is provided with a yielding aqueduct, the anoxic reaction zone is internally led with a water inlet pipe, the top part of the anoxic reaction zone is provided with an exhaust pipe, and the bottom of the anoxic reaction zone is provided with a water distribution pipe which communicates with the anoxic reaction zone and the fluidized aerobic reaction zone. The fluidized aerobic reaction zone is internally provided with a vertical partition board which divides the reaction zone into two zones, gaps communicated with the two zones are arranged on the partition board at intervals, and the aeration device is positioned outside the partition board. Compared with the prior art, the pool body is divided into the anoxic reaction area, the fluidized aerobic reaction zone, and the settlement collecting area, a biological reaction, a mud-water separation, and a sludge return flow systems of the sewage are combined organically, the sewage purification effect is good, the partition board divides the position of the original aerobic zone into two positions, so as to cause the aeration range to be small, the oxygen utilization ratio to be improved, and the aeration effect to be greatly increased.
Owner:ZHEJIANG DEAN TECH

Top-mounted assembly technology of camshaft cylinder cover assembly

The invention relates to a top-mounted assembly technology of camshaft cylinder cover assembly. The assembly technology mainly comprises steps arranging an air gate valve rod on the cylinder cover in a pressing mode, installing an intake valve and an exhaust valve, measuring deflection of the intake valve and the exhaust valve, installing an intake valve spring, an exhaust valve spring, an exhaust valve inner spring, a valve spring seat and a valve collet, detecting quality of the installation of the valve collet, detecting the valve collet patting, detecting leakage of the valve collet, installing components such as an intermediate gear assembly and a thrust plate in correct timing, installing components such as an oil injector assembly, tightening an oil injector press plate bolt and a middle gland nut, detecting extending quantity of the oil injector assembly and transferring and offline of qualified products of a cylinder cover assembly and the like. The top-mounted assembly technology of the camshaft cylinder cover assembly is saved in equipment investment and working position arrangement. Control ability is effectively improved in the process of assembly quality. The installation of components and parts of the bottleneck operation is optimized, the technological process is reasonably distributed, the requirement of quantity production is met, and the cycle time of the whole line is in 130s.
Owner:CHINA FIRST AUTOMOBILE

Energy-storage-type high-efficient washing disinfector and control method thereof

The invention discloses an energy-storage-type high-efficient washing disinfector and a control method thereof, and belongs to the field of technical equipment of cleaning of disinfectors. The energy-storage-type high-efficient washing disinfector comprises a washing bin which is connected with a water inlet pipe, and is characterized by further comprising a steam mechanism and a heat exchange mechanism; the heat exchange mechanism is connected with a water inlet pipe; a water drainage port of the steam mechanism communicates with the washing bin; a vent hole of the steam mechanism separatelycommunicates with the washing bin and the heat exchange mechanism; the outlet end of the heat exchange mechanism communicates with the washing bin; a sewage drainage port is arranged on the washing bin; a jetting device is arranged between the steam mechanism and the washing bin; a steam pressure detection mechanism and a steam water level detection mechanism are arranged in the steam mechanism; and a safety valve is arranged on the outlet end of the steam mechanism. By adopting the energy-storage-type high-efficient washing disinfector, a water heating pipe and an air heating box can be prevented from dry burning and catching fire; heating time of a circulation period is reduced; working efficiency is improved; the drying effect is good; heating elements are decreased; the failure rate islowered; and cost is lowered.
Owner:SHINVA MEDICAL INSTR CO LTD
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