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252results about How to "It will not affect" patented technology

Biological purification method for freshwater aquaculture water environment

ActiveCN102557323AReduce ammonia nitrogen and nitrite nitrogen contentEasy to operateMultistage water/sewage treatmentNutrientNitrite nitrogen
The invention discloses a biological purification method for freshwater aquaculture water environment, which uses more than two of a microbial flocculating agent, a composite microbial preparation, a composite enzyme preparation or a biological floating bed to purify the freshwater aquaculture water environment. The biological flocculating agent is adopted to reduce contents of COD, BOD and SS in culture water and promote the growth of beneficial microbes; the enzymolysis of the composite enzyme preparation is utilized to decompose residual nutrients in the water into micro-molecules; the degradation effect of the composite microbial preparation is utilized to finally transform the micro-molecular nutrients into nitrogen released to air, and aged microbial thalli are removed through the microbial flocculating agent; and the artificial floating bed is utilized to absorb and adsorb nitrogen, phosphorous and organic matters in the culture water. Contents of ammonia nitrogen and nitrite nitrogen in the culture water can be reduced and there are no adverse influences on fish through above processing. The method which has the advantages of simple operation, low cost and substantial effect has obvious economic benefits and social benefits.
Owner:江苏绿科生物技术有限公司

Ultra-temperature high-pressure stop valve

The invention relates to an ultra-temperature high-pressure stop valve comprising a valve body, a valve cover, a valve rod, a valve clack, a valve seat and an operation mechanism, wherein, cooling channels are arranged in the valve rod and the valve clack. The invention is characterized in that at least two groups of sealing surfaces are arranged between the valve clack and the valve seat; the valve clack is provided with an annular notch separating adjacent sealing surfaces, and the two ends of the notch are stuck with the inner wall of a valve seat path to form an insulated tank. The invention has the following beneficial effects: a plurality of groups of sealing surfaces are arranged between the valve clack and the valve seat, and the insulated tank is arranged between two adjacent sealing surfaces; if an outer sealing surface leaks, medium enters the insulated tank but is blocked by the outer sealing surface, so that the heat quantity of medium entering the insulated tank is small; because the insulated tank is near the valve rod and the cooling path of the valve clack, the temperature of the medium entering the insulated tank can be quickly lowered, which effectively ensures that inner sealing surface can be free from being affected by high-temperature and high-pressure medium, and the whole sealing performance of the valve can be improved.
Owner:ZHEJIANG PETROCHEMICAL VALVE CO LTD

Outdoor automatic cleaning garbage can

The invention discloses an outdoor automatic cleaning garbage can having a garbage classification function and belongs to the technical field of garbage can application. The outdoor automatic cleaning garbage can comprises a can body, a controller, a reminder, a cleaning mechanism, a sewage collecting part, a driving motor, and a solar power supplier. A reversible cover is arranged on the can body of the garbage can, and hinged to an edge of the can body. The reversible cover is further connected to the driving motor that is connected to the controller. The reminder is installed on an outer surface of the can body and connected to the controller. The cleaning mechanism is installed in a port of the can body and connected to the driving motor. The driving motor drives the cleaning mechanism to rotate in the can body to clean the interior of the can body. The sewage collecting part is installed at the bottom of the can body. According to the outdoor automatic cleaning garbage can, the cleaning mechanism and the sewage collecting part are arranged on the garbage can, such that the inner wall of the garbage can may be cleaned without splashing of sewage onto the body of a worker, and the problem of sewage splashing when cleaning the garbage can is solved; the garbage can has the advantage of sewage collection, and also has a function of guiding residents to classify and place garbage.
Owner:ANHUI SHENGYUN ENVIRONMENT PROTECTION GRP CO LTD

An unmanned aerial vehicle detection method and an unmanned aerial vehicle detection system

The invention relates to an unmanned aerial vehicle detection method and an unmanned aerial vehicle detection system. The unmanned aerial vehicle detection system comprises a radio detection device which is used for detecting a target unmanned aerial vehicle in a detection range through a radio detection method so as to obtain radio detection information of the target unmanned aerial vehicle; a photoelectric detection device which is used for detecting the target unmanned aerial vehicle in the detection range through a photoelectric detection method so as to obtain photoelectric detection information of the target unmanned aerial vehicle; an information processing apparatus which is electrically connected with the radio detection device and the photoelectric detection device, and is used for receiving the radio detection information of the target unmanned aerial vehicle and the photoelectric detection information of the target unmanned aerial vehicle, and obtaining the comprehensive information of the unmanned aerial vehicle according to the radio detection information and the photoelectric detection information. Through the dual-mode passive detection target unmanned aerial vehicle, the surrounding environment is not influenced.
Owner:BEIJING INST OF ENVIRONMENTAL FEATURES

Reinforced cement machine-made board with three-dimensional cavity fiber structure and production method of board

The invention relates to a reinforced cement machine-made board with a three-dimensional cavity fiber structure and a production method of the board, and particularly relates to a novel building material and product, which adopt a mechanical production process, are high in strength, light in weight and abundant in decorative effect, and are realized by forming a cavity structure by three-dimensional cavity connection bodies and compounding and filling a high-performance anti-cracking cement base material. A product comprises a bottom layer, a three-dimensional fiber cavity layer and a decorative surface layer, wherein the decorative surface layer is made of decorative surface layer mortar; the decorative surface layer is arranged at the upper part of the three-dimensional fiber cavity layer; the decorative surface layer is connected with the three-dimensional fiber cavity layer; the three-dimensional fiber cavity layer is formed by filling high-performance anti-cracking cement slurry into the three-dimensional cavity connection bodies; and the three-dimensional fiber cavity layer is connected with the bottom layer and the bottom layer is made of the high-performance anti-cracking cement slurry. The product is mainly applied to outer wall decoration and indoor engineering construction of buildings, and constructions of roads, bridges and the like with high requirements on the strength and the durability of the cement base material.
Owner:江苏倍立达新材料科技有限公司

Method and device for preventing subway train from running after objects are clamped between door of subway train and platform screen door

The invention provides a method and a device for preventing a subway train from running after objects are clamped between a door of the subway train and a platform screen door, and belongs to the field of emergency safety devices. A door barrier-free automatic detecting interlocking condition and a corresponding automatic detecting device are added on the basis of the train starting safety interlocking conditions for the conventional rail vehicle control system, and are used for detecting whether objects which block light are clamped between two train doors after a train door 'closing' action is finished, a rail transit vehicle is prevented from starting and running after the objects are clamped between a door of the rail transit vehicle and the platform screen door, operation load of a driver can be reduced, the driver can concentrate on driving safely, and injury to passengers due to a 'door rushing' phenomenon can be prevented, station staff can timely and rapidly find out positions of 'door rushing' passengers or the clamped objects, faults can be removed in time, the safety of a whole rail traffic system can be improved, influences due to human factors are reduced, the stay time of the rail transit vehicle at each station can also be shortened, and the operation efficiency of the rail vehicle is improved.
Owner:蔡方舟

Low-temperature exhaust heat concentration system and method utilizing wastewater of thermal power plant

The invention belongs to the technical field of wastewater treatment of a thermal power plant and particularly relates to a low-temperature exhaust heat concentration system and method utilizing wastewater of a thermal power plant. The system comprises a dust removal device, a desulfurizing absorption tower, a wastewater collecting tank, a pretreatment device, a wastewater preheating device and an evaporation concentration tower, wherein the wastewater preheating device preheats pretreated wastewater by use of flue gas heat in a flue between the dust removal device and the desulfurizing absorption tower; the evaporation concentration tower is used for evaporating the preheated wastewater at the low temperature and comprises a tower body, an atomizing device connected with a wastewater outlet of the wastewater preheating device is arranged in the tower body, and multiple filler layers are arranged below the atomizing device and in the tower body; an air inlet is formed in the lower part of the tower body and connected with a blower, and an air outlet is formed in the upper part of the tower body; a wastewater concentration circulating system is arranged at the bottom of the tower body. The system is simple in overall design, reliable to operate, low in operation energy consumption and lower in investment cost and occupies a small area.
Owner:四川苏源环保工程有限公司

Electromagnetic shielding sealing product and manufacturing technology thereof

The invention discloses an electromagnetic shielding sealing product and a manufacturing technology thereof and belongs to the technical field of an electromagnetic shielding material. The electromagnetic shielding sealing product comprises an aluminum alloy framework, wherein an electromagnetic shielding rubber material is arranged on the aluminum alloy framework and comprises the following components in parts by weight: 80-100 parts of methyl vinyl silicone rubber, 50-300 parts of silvering conducive filler, 2-8 parts of DCBP grease and 2-8 parts of a coupling agent; the components are mixed, refined and sheeted and then are compounded and vulcanized with the aluminum alloy framework, so as to acquire the electromagnetic shielding sealing product. The manufacturing technology disclosed by the invention is simple; low-temperature vulcanization is adopted, so that the aluminum alloy framework is not influenced; the shore A hardness of an electromagnetic shielding rubber material on the sealing product surface is not higher than 70 degrees, the volume resistivity is 0.005-0.01 omega.cm and the electromagnetic shielding property is excellent; the precedent of a high-conductive rubber material is started; the blanking of a high-conductive rubber material is filled; the requirements on electromagnetic shielding and sealing property of equipment are met.
Owner:青岛颐科密封材料有限公司

Precision winder for winding yarns

The invention discloses a precision winder for winding yarns. The precision winder comprises an inner cylinder and an outer cylinder, wherein the outer cylinder sleeves outside the inner cylinder; the inner cylinder penetrates through two ends of the outer cylinder; first mounting rings are arranged at the end penetrating through the outer cylinder; a plurality of first mounting holes are formed in each first mounting ring; second mounting rings are arranged at the outer edge of the outer cylinder; movable blocks are articulated with the second mounting rings; second mounting holes are formed in the movable blocks; connection rods are arranged on the movable blocks and the first mounting rings; insertion rods are arranged at two ends of each connection rod respectively; one insertion rod is inserted into a first mounting hole; the other insertion rod is inserted into a second mounting hole; a bracket used for winding yarns is arranged on each movable block; one end of each bracket is fixedly arranged on a movable block of a second mounting ring; the other end of each bracket is fixed to a movable block of the other second mounting ring. Through the precision winder for winding yarns, the required periphery diameter is controlled according to the requirement of actual production; different-sized yarns are conveniently wound; meanwhile, the movable blocks are folded after finishing winding the yarns; the wound yarns in tight state can be released.
Owner:XINCHANG WANSHIFA TEXTILE MACHINERY

Air inflation and exhaust system, additive manufacturing equipment and air inflation and exhaust method

The invention provides an air inflation and exhaust system. The system comprises a sealing device which forms a forming cavity and a flexible device used for keeping and releasing the gas, wherein thesealing device is provided with a gas outlet, a gas inlet, a first through hole and a second through hole, the gas outlet is used for allowing the gas in the forming cavity to be discharged out of the cavity, the gas inlet is used for enabling the inert gas to enter the forming cavity through the gas inlet, the first through hole is used for allowing a part of a access device to be accommodatedin the forming cavity of the sealing device in a sealing mode, and the main body part of the flexible device is arranged in the forming cavity of the sealing device in a sealing mode through the second through hole; and the flexible device is provided with a gas inflation port and a gas extraction port which are used for allowing the gas to be fed and allowing the gas to be extracted respectively,and the gas inflation port and the gas extraction port are positioned outside the sealing device. The invention further provides additive manufacturing equipment and an air inflation and exhaust method.
Owner:北京煜鼎增材制造研究院股份有限公司

Remote control access control system and working method thereof

The invention relates to the field of electronic technology, and more specifically relates to an access control system. The remote control access control system comprises the following parts: a geographical location positioning module, which is used for positioning an automobile terminal and acquiring the geographic coordinate information of the automobile terminal; a first wireless communication module, which is to sending a connection request to a specified object to establish wireless connection; a comparison module, which is used for comparing the geographic coordinate information obtained by the geographical location positioning module with the geographic coordinate information of the access control terminal, and generating corresponding control command to open or close the first wireless communication module; a second wireless communication module, which is used for establishing wireless connection with the successfully matched first wireless communication module; and a control device, which generates an open command to open an access control rolling mill or generates a close command to close the access control rolling mill, based on the wireless connection state or an external command. The invention not only eliminates the card-swiping operation and automobile stop, but also achieves the purpose of saving the cost; and the system is not affected by the environment, so as to realize efficient management of a residential area or a parking lot.
Owner:SPREADTRUM COMM (SHANGHAI) CO LTD

Hard rock bearing platform rope saw cutting device

The invention relates to the technical field of rope saws and discloses a hard rock bearing platform rope saw cutting device which is placed on a bearing platform of a hard rock. The hard rock bearing platform rope saw cutting device comprises a fixed frame fixed to the bearing platform of the hard rock, a rope saw cutting structure longitudinally moving along the fixed frame and a driving structure for driving the fixed frame to move longitudinally. The rope saw cutting structure is provided with a saw rope which is arranged in a longitudinal circulating rotation and used for cutting the hard rock, the saw rope is provided with a cutting section which is horizontally arranged and used for cutting the hard rock, and the cutting section is located on the lower portion of the rope saw cutting structure. The hard rock bearing platform rope saw cutting device is fixed to the bearing platform of the hard rock though the fixed frame, so that the position of the rope saw cutting structure is fixed well, the cutting section of the longitudinally arranged saw rope of the rope saw cutting structure is utilized to cut the hard rock, the driving structure drives the rope saw cutting structure to move longitudinally, the cutting depth requirements are met, the rope saw cutting structure is driven to return, the cutting of the whole hard rock does not need exposed explosion or static explosion, the environment is not affected, and the hard rock bearing platform rope saw cutting device is used anytime anywhere, is low in cost, is not subjected to weather influence and is high in construction efficiency.
Owner:SHENZHEN GONGKAN GEOTECHN GRP +1
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