54results about How to "Easy to retrofit and install" patented technology

The invention relates to a lightning protection method by grounding the nearest point of a signal feeder port, which comprises a nearest grounding point of the signal feeder port, a down lead, an insulating material and a metal grounding plate, wherein one end of the down lead is connected with the nearest grounding point of the signal feeder port, the other end is connected with a grounding body, a housing of a system device is isolated with the ground by using the insulating material, a layer of the metal grounding plate is laid below the insulating material, the metal plate is connected with the grounding body, and the sizes of the metal plate and the insulating material are at least larger than the contactable human-machine distance. The lightning protection method has the benefits of eliminating a bleeder dissipation current channel formed by lightning potential introduced from a power supply and a signal interface through the housing at the lower part of a machine device and the ground, leading the ground potential of the housing at the lower part of the device to suspend by leading the housing at the lower part of the device to be insulated and isolated with the ground, eliminating the probability of leading the external lightning potential to form lightning current and pass through in the system device, leading the place within a certain range below the system device to form the isopotential surface through the metal plate by utilizing the metal plate laid below the insulating plate and further ensuring the personal safety of staff walking on the system device. The method has high protection reliability and maintenance-free property and can simultaneously effectively reduce the mounting cost and the construction cost of the system.

The invention relates to a coal bunker wall vibrating device which is characterized in that a fixing base plate (10) is welded on the inner wall of a bunker wall (12), holes are correspondingly formed on the fixing base plate (10) and the bunker wall (12), a middle sleeve (11) is placed in the holes, a vibration connecting rod (7) is placed in the middle sleeve (11), one end of the vibration connecting rod (7) is provided with a vibrating plate (8), the vibrating plate (8) is fixed on the vibration connecting rod (7) by nuts (9), a vibration motor (1) and a vibration motor base (2) are connected with the other end of the vibration connecting rod (7) by fixed pins (3), a puller spring (6) is arranged outside of the vibration connecting rod (7), the puller spring (6) is fixed by puller nuts (4) and a spring collar (5), and the puller spring (6) is used for amplifying vibration amplitude of the vibration motor (1), so that the vibrating plate (8) in the bunker vibrates in a reciprocating way. The device provided by the invention has simple structure and can be transformed, installed and regulated conveniently; and compared with the prior art, the device has substantial characteristics and progress, can effectively solve the problems of material binding and material blockage in the bunker, and has strong practicability.

The invention belongs to the technical field of metallurgy purification, and particularly relates to a method and equipment for directional solidification and purification of polycrystalline silicon through taking tailing. According to the method, under the inert gas shielding environment, abluent silicon is melted so as to carry out directional solidification; ingot pulling is stopped when solidification is completed by 85-90%, a graphite tube is stretched into surplus melt silicon, then inert gas is led into a vacuum chamber, so that the surplus melt silicon enters the graphite pipe under the action of pressure difference and ingot pulling is continuously carried out, after the upper end of a crucible leaves a heating area, the water cooled crucible is stretched below the graphite tube, inert gas is stopped being led into the vacuum chamber, the vacuum chamber is vacuumed, the surplus melt silicon in the graphite tube falls into the water cooled crucible to be cooled and solidified; the power is cut off so as to stop heating, and cast ingot solidified in a crucible is silicon cast ingot of high purity. Due to the method, back-diffusion of impurity is prevented, technology processes are reduced, and the yield of cast ingot is improved. The equipment is convenient to improve and install, is easy to operate, can effectively remove impurities accumulated at the tail of the cast ingot, saves production period and cost, and is applicable to industrial production.

The invention discloses a device and a method for purifying and recovering the tail gas of a benzene-hydrogenation truck. The device comprises a tail-gas fan, N absorbing tanks, a purified-gas discharging pipeline, a desorbed-steam input pipeline, a benzene-containing steam discharging pipeline, a condensation cooler, an oil-water separating groove and a benzene storage groove, wherein the tail-gas fan is used for introducing benzene-containing tail gas escaping from a truck opening in the benzene-hydrogenation process into the N absorbing tanks; all benzene-containing tail gas feeding holes of the N absorbing tanks are respectively connected with an outlet of the tail-gas fan and are internally and respectively provided with an absorbing agent; the purified-gas discharging pipeline is connected with purified-gas discharging holes of the N absorbing tanks; the desorbing-steam input pipeline is connected with desorbing-steam feeding holes of the N absorbing tanks; the benzene-containing steam discharging pipeline is connected with benzene-containing steam discharging holes of the N absorbing tanks; an inlet of the condensation cooler is connected with an outlet of the benzene-containing steam discharging pipeline; the oil-water separating groove is connected with an outlet of the condensation cooler; the benzene storage groove is connected with an oil outlet of the oil-water separating groove. The device disclosed by the invention is simple in structure, convenient in modification and installation, convenient in adjustment, good in purifying effect, high in recovery efficiency and low in cost.

The invention belongs to the technical field of metallurgical purification, and especially relates to a method and an apparatus of induced inversion solidification. The method comprises the following steps of: in the vacuum environment, heating the cleaned silicon material until the silicon material is completely melted and directionally solidified; when 80-90% of solidification is completed, rotating the crucible so that the silicon melt of the upper layer is gathered towards the sidewalls of the crucible under the action of the centrifugal force, and simultaneously blowing an inert gas to the center of the top of the left silicon melt of the upper layer so that the left silicon melt of the upper layer is gathered towards the sidewalls from the center of the crucible under the action of the gas flow and quickly solidified inversely, and is completely solidified at the sidewalls of the crucible; after the whole silicon ingot is cooled, removing the cast ingot of the upper layer obtained through solidification on the sidewalls of the crucible, so as to obtain the left cast ingot as the high-purity silicon cast ingot. The apparatus provided by the invention is added with the functions of crucible rotation and blowing on the basis of the previous solidification apparatus. The method and the apparatus provided by the invention have the advantages that back-diffusion of impurities is reduced, the yield of the cast ingot is improved, the process links are reduced and the energy consumption is reduced; the equipment is convenient to reform and mount; the impurities enriched at the tail part of the cast ingot are effectively removed; and the production cycle and the production cost are saved.

The invention discloses a safety type liquid level height and liquid level potential comprehensive testing device, and particularly relates to the field of electrostatic safety protection in the storage, transportation, loading and unloading processes of petrochemical engineering liquid materials. The safety type liquid level height and liquid level potential comprehensive testing device comprisesa shell, an upper cover; an electrostatic sensitive probe unit and a liquid level height sensing probe unit are arranged on the shell, the electrostatic sensitive probe unit can be a non-contact micro electro mechanical system (MEMS) electrostatic sensitive probe unit, and a signal processing and control unit is arranged in the shell. The electrostatic sensitive probe unit and the liquid level height sensing probe unit are in electric control connection with the signal processing and control unit. The shell comprises a square body, a cylindrical head extends out of one end face of the squarebody, the signal processing and control unit is located in the square body, and the electrostatic sensitive probe unit and the liquid level height sensing probe unit are located on the head. The tailend of the head is provided with a thread at one end, and when the device works, the head is screwed on a storage tank through a thread to be connected with the storage tank.

The invention relates to a negative pressure ammonia distillation process and a negative pressure ammonia distillation device for residual ammonia water in coking production. A venturi tube is arranged at the ammonia steam inlet of a desulfurizing tower; and the bottom of an ammonia distillation tower is provided with an ammonia distillation wastewater / circulating ammonia water heat exchanger andan ammonia distillation wastewater circulating pump. The ammonia distillation wastewater / circulating ammonia water heat exchanger and the ammonia distillation wastewater circulating pump are started,so that heat of circulating ammonia water is brought in the ammonia distillation tower by ammonia distillation wastewater; when the temperature of the top of the ammonia distillation tower is between60 and 80 DEG C, a desulfurizing solution pipeline valve of the venturi tube is opened, and ammonia steam is sucked into the desulfurizing tower; meanwhile, a residual ammonia water pump and an ammonia distillation wastewater pump are started, the residual ammonia water enters the ammonia distillation tower through the heat exchanger, and the ammonia distillation wastewater at the bottom of the tower flows through the heat exchanger and an ammonia distillation wastewater cooler and is subjected to biochemical treatment. The process is simple, equipment has a reasonable structure and is convenient to install and adjust, energy consumption can be effectively reduced, and the ammonia distillation wastewater index is stabilized.

The invention discloses wall-mounted disinfection equipment. The comprises a wall-mounted shell which is provided with an air inlet and an air outlet, a fan, a negative ion generator and a disinfecting device; an air channel is formed in the wall-mounted shell; the air channel communicates with each of the air inlet and the air outlet; the fan is mounted in the wall-mounted shell and is positionedin the air channel; the negative ion generator is mounted at the air inlet; and the disinfecting device is mounted at the air outlet. The wall-mounted disinfection equipment disclosed by the invention provides the equipment which performs disinfection with regard to elevator closed air.

The invention discloses a product recognition exclusive system and method. The invention relates to a refrigerator door body movement mechanism which comprises an integrated assembly, the integrated assembly is formed by a plastic shell wrapping the movement mechanism and a lens module in a sealed mode, the integrated assembly is installed in the middle of double-layer glass of a refrigerator doorbody, and the integrated assembly can be installed vertically, transversely and obliquely so as to achieve better recognition of products. The integrated assembly comprises a main control board, anda connecting wire extends out of the integrated assembly and is electrically connected with the main control board; the image processing module comprises an image processing server and is used for receiving the images shot by the lens module, analyzing the images, recognizing the characteristics of the stored products, calculating the quantity, comparing the set products in the database and givinga matching result feedback alarm; the system comprises a product management server for managing product storage equipment. The product recognition exclusive system is simple and exquisite in structural design, low in manufacturing cost, easy to install and high in recognition success rate.

The invention relates to a gravity-flow type efflux technology of condensate of a coal gas primary cooler, a liquid flow direction selector is arranged on an upper-section oil return pipeline, two ends of the liquid flow direction selector are communicated with a cross-pipe primary cooler and a circulating oil tank respectively, an automatic regulating valve is series-connected at the end of connecting the liquid flow direction selector with the cross-pipe primary cooler through a pipeline, and the two ends of the automatic regulating valve are communicated with the cross-pipe primary cooler and a mechanized settling tank respectively; the mounting position of the liquid flow direction selector is higher than a horizontal part of the upper-section oil return pipeline; the automatic regulating valve is sequentially connected with a PLC program controller, a liquid level meter and the circulating oil tank by using signal lines; and the automatic efflux of the condensate can be realized by utilizing the height difference between the upper-section oil return pipeline and the mechanized settling tank and the liquid flow direction selector, thereby reducing loads of a circulating spray pump, stabilizing the circulating spray volume and simultaneously utilizing the automatic regulating valve for regulating the efflux volume for further controlling the liquid level of the circulating oil tank. The gravity-flow type efflux technology has simple structure, and convenient mounting and regulation, and can effectively reduce the energy consumption, stabilize the operation of the primary cooler and avoid the environmental pollution.

The invention relates to the field of flue gas emission of industrial furnaces, in particular to an insertion type flue gas flow measuring method and device in an excessive air burning environment. According to the insertion type flue gas flow measuring method based on detection of an oxygen content, contents of all components and the flow of a fuel are input from an input end of a data processing device; the theoretical air ratio, the theoretical flue gas, the theoretical air amount and the theoretical flue gas amount of the fuel are obtained through calculation; the oxygen content in the flue gas is obtained through detection of a measurement probe of an oxygen content detection device; and finally, the actual flue gas flow is calculated. The insertion type flue gas flow measuring device based on the detection of the oxygen content comprises the data processing device and the oxygen content detection device, wherein the measurement probe in the oxygen content detection device stretches into a flue gas emission pipe. According to the method and the device, the flue gas flow is calculated according to the components, the flow of the fuel and the oxygen content in the flue gas, and installation and arrangement are facilitated; and the convenient and feasible measuring device and measuring method are provided for measuring the flow of flue gas in a conventional flue gas emission pipe without flow detection.

The invention provides a mechanical device for assisting old people to get up and down. The device includes a bed frame, a driving mechanism, a transmission mechanism, a leg plate one-way locking mechanism and a supporting rod resetting mechanism, and the bed frame includes a vertical plate, a floor plate, a bottom plate, a bed seat and a steering bearing; and the floor plate is connected with thevertical plate, the bottom plate is connected with the second end part of the vertical plate to form a bed body connection part, and the bed body connection part can be connected with an external bedbody. The driving mechanism is a power source of the device and adopts a turbine worm rod structure, and motor steering is controlled to control worm rod steering to realize the entire process of turning of a bed body and standing up and flat lying; the transmission mechanism uses a four-bar mechanism; the leg plate one-way locking mechanism uses meshing of a first one-way bearing, a cam, a gearand a rack to realize locking, and the rack moves under the action of motors to realize hooking and loosening of a hook; and in the mechanical stretching and lifting process of the supporting rod resetting mechanism, a seat plate can be always kept in a horizontal state to hold people to lift the people up.

The invention discloses a beam-pumping unit brake locking device and a using method. The device comprises a speed reducer and a shell, wherein the speed reducer is provided with a shell body, an inclined embedded groove is formed in the shell body, the inclined embedded groove is connected with an upper sliding groove and a lower sliding groove, the bottom of the front half part of the inclined embedded groove is connected with a groove, the groove is adhesively connected with a flat magnetic plate, a sliding magnetic plate is installed at the back half part of the inclined embedded groove, anupper insertion plate is connected with the sliding magnetic plate, the upper insertion plate is inserted into the upper sliding groove and can slide, the sliding magnetic plate is connected with a lower insertion plate, and the lower insertion plate is inserted into the lower sliding groove and can slide; the shell body is provided with a brake groove, a triangular brake plug-in is arranged inside the brake groove, the speed reducer is provided with an output shaft, a brake disc is fixedly connected to the outer side of the output shaft, a set of triangular brake sockets are formed around the circumference of the brake disc, and the triangular brake plug-in is inserted into the triangular brake sockets to fix the output shaft. The locking device is used for beam-pumping unit braking.

This application belongs to the technical field of substations, and provides an online monitoring device and method for a comprehensive alarm unit of GIS equipment in a substation. The device includes: a control module, an output module, an input module and a power supply module. The output module sends a test electrical signal to the monitored integrated alarm unit. If the control module receives the feedback electrical signal through the input module, it considers that the integrated alarm unit is working normally; Alarm. According to the state of the electric signal, the application can realize online monitoring whether the operation of the comprehensive alarm unit is abnormal, and it is convenient to directly modify and install the stock comprehensive alarm unit; the monitoring device can be fixed by screws and simple buckle wiring can be completed The installation in the GIS equipment control cabinet is simple.

The invention belongs to the technical field of metallurgy purification, and particularly relates to a method and equipment for directional solidification and purification of polycrystalline silicon through taking tailing by a quartz tube. According to the method, under inert gas environment, silicon is melt and then is cooled to pull ingot; when solidification is completed by 85-90%, the quartz tube is stretched into the surplus melt silicon, vacuumizing is stopped, inert gas is led in, the surplus melt silicon enters the quartz tube under the action of pressure difference, ingot pulling is continuously carried out, after the upper end of a crucible leaves a heating area, a tailing collection box is stretched below the quartz tube with a point; the power is cut off so as to stop heating, melt silicon in the quartz tube expands, then the quartz tube cracks and falls into the tailing collection box, and cast ingot of high purity in the crucible is obtained. Due to the method, back-diffusion of impurity is prevented, technology processes are reduced, and the yield of cast ingot is improved. The equipment is convenient to improve and install, is simple to operate, can effectively remove impurities accumulated at the tail of the cast ingot, save production period and cost, and is applicable to industrial production.

The invention relates to a light oil tank circulating slag flushing device. A circulating slag flushing branch circuit is externally connected to a light oil tank feeding pipeline, and comprises a first circulating slag flushing pump, a benzene slag sedimentation tank and a second circulating slag flushing pump, wherein the first circulating slag flushing pump, the benzene slag sedimentation tank and the second circulating slag flushing pump are connected together in series through pipelines; an inlet of the first circulating slag flushing pump is communicated with the light oil tank feeding pipeline, and the benzene slag sedimentation tank is a horizontal sealed tank; a slag baffle is longitudinally arranged inside the benzene slag sedimentation tank, and the area in the benzene slag sedimentation tank is divided by the slag baffle into a benzene slag sedimentation area and a clear oil product area; a benzene outlet is connected with a benzene slag pipeline, and the benzene slag pipeline is communicated with a pipeline located between the first circulating slag flushing pump and the light oil tank feeding pipeline. The light oil tank circulating slag flushing device is simple in structure and convenient to improve, install and operate; storage tank circulating slag flushing cleaning is conducted regularly, accumulation of benzene slag in a storage tank is reduced, the continuous service cycle of the storage tank is prolonged, and stable operation of a follow-up processing system is guaranteed.