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

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 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 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.