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 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 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.

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.