31results about How to "Rapid drainage" patented technology

The invention discloses a high-efficiency vertical seepage drainage device for a tailings pond, which comprises a seepage drainage pipe (1) and a connecting pipe (2). The seepage drainage pipe (1) is vertically arranged in the tailings pond and passes through the connecting pipe (2) Connected with the hidden drainage pipe and the drainage chute of the tailings pond or directly lead out of the pond, the seepage drainage pipe (1) consists of a pipe body (3) with a plurality of through holes (31) in the center, and a covering pipe The filter cloth (4) and the fixed net (5) on the outer circumference of the body (3) constitute. The present invention vertically arranges seepage drainage pipes with through-holes on the inner wall and outer covering filter cloths in the tailings dam, so that the tailings are funnel-shaped to discharge seepage at about 45° along the drainage pipes, and the seepage drainage area increases with the accumulation of tailings. Gradually increase, the closer to the seepage pipe, the better the effect, so as to effectively reduce the infiltration line in the vertical direction and ensure the safety of the tailings pond. Compared with the traditional horizontal seepage discharge pipe, the seepage discharge pipe of the present invention is more resistant to pressure and less prone to bending, and can also be used as a horizontal seepage discharge pipe, and can also be used in combination with the horizontal seepage discharge pipe.

The invention provides a sinking type foundation pit dewatering and draining system. The sinking type foundation pit dewatering and draining system mainly comprises water collecting wells, dewateringwells, blind ditches and open ditches. The water collecting wells are arranged at every corner of the foundation pit. The open ditches are formed in the periphery of the bottom of the foundation pit.Adjacent two water collecting wells are connected by one open ditch. The dewatering wells are uniformly formed in the foundation pit according to on-site requirements. The well openings of the dewatering wells are lower than the bottom plate of the foundation pit. The blind ditches extend in a cross shape with the dewatering wells as the centers. The blind ditches extending from adjacent dewatering wells are connected. The blind ditches extending to the periphery of the foundation pit are connected with the open ditches. In this way, a network of crisscrossing ditches is formed. The dewateringand draining system can well solve the problems that draining of the foundation pit is slow and draining is difficult. The draining efficiency is high. The sinking type dewatering and draining systemdoes not influence running of construction machines in the foundation pit. Construction efficiency and continuity can be guaranteed. The invention further provides a construction method and an application method of the dewatering and draining system.

The invention relates to the field of long-distance water supply trucks. Aiming at the problems that in the prior art, a power system of a water pump is complex in structure, huge in volume and large in energy loss, and the pump is easy to damage, the invention provides a power system which comprises an engine, a proportional displacement variable pump, a security / unloading valve, a switching valve, a hydraulic motor, a filter, an oil tank and a hydraulic oil pipeline, wherein the proportional displacement variable pump is driven by the engine, the security / unloading valve and the switching valve are connected with an oil outlet of the proportional displacement variable pump and connected in parallel to each other, and the hydraulic motor is connected with an outlet of the switching valve and drives a water pump; when the switching valve is closed and the security / unloading valve plays a role of an unloading valve, an oil feeding pipeline of the hydraulic motor is closed; and when the switching valve is opened and the security / unloading valve plays a role of a security valve, the rotating speed of the hydraulic motor finally controls the rotating speed of the water pump through adjusting the displacement of the proportional displacement variable pump, and then the working condition of the water pump is adjusted. Through the adoption of the proportional displacement variable pump, the displacement of the proportional displacement variable pump can be automatically adjusted according to a preset program based on the changes of the working condition, thus the technical problems in the prior art are solved.

The invention provides a packaging support structure and a light-emitting device comprising a packaging support structure. The packaging support structure comprises a shell, wherein the shell comprises a light emitting surface, a backlight surface, a bottom surface and a groove; and a conductive support, which is partially wrapped by the shell and comprises a first pin and a second pin which are separated from each other, wherein the first pin and the second pin each comprise an electrode part and a bending part, and the electrode parts are exposed out of the shell through the groove, and thebending part and the electrode parts extend outwards to the outside of the shell and are bent towards the bottom surface of the shell. One of the first pin and the second pin further comprises a heatdissipation part, and the heat dissipation part extends outwards from the electrode part and is exposed out of the backlight surface of the shell. The packaging support structure provided by the embodiment achieves the effects of reducing loading errors and effectively eliminating heat energy.