4results about How to "Solve silt" patented technology

The water filling and sand disturbing integrated gate structure comprises a hollow screw rod, the upper end of the hollow screw rod is connected with a high-pressure water / gas conveying device, and the lower end of the hollow screw rod is connected with a gate through a long hole extending in the vertical direction; the hollow screw rod can drive the gate to move up and down under the action of the driving device; a pressurizing water seal system is arranged on the periphery of the gate panel, and a gate sand disturbing system is further arranged on the gate panel. The pressurizing water seal system comprises a water seal structure and a pressurizing pipeline connected with the water seal structure, the pressurizing pipeline is connected with the hollow screw through a second high-pressure hose, a first one-way valve and a reversing water filling valve are sequentially arranged on the pressurizing pipeline in the pressurizing direction, and opening and closing of the reversing water filling valve are achieved through vertical movement of the hollow screw. The device is simple and compact in structure, has the core functions of transmitting opening and closing force and conveying water and gas, and achieves the dual purposes of water seal water filling and gate sand disturbing.

This invention relates to a modular, anti-siltation bottom aquaculture device. The device includes an aquaculture module and an anti-siltation module. The aquaculture module has a cubic frame structure, within which several shellfish aquaculture cages or ropes are installed. The anti-siltation module includes several flip-up plates spaced apart on the lower plane of the cubic frame structure of the aquaculture module. This invention can be customized to suit the seabed characteristics of different sea areas, and each device is an independent aquaculture space, facilitating processing, transportation, assembly, and deployment. It is highly practical and effectively reduces labor and transportation costs. The anti-siltation module has a simple structure and can freely switch between deployment and harvesting states, effectively solving the siltation problem in bottom aquaculture. To increase service life, an anti-corrosion module can be added, fixing sacrificial anodes to the aquaculture module. This invention significantly reduces aquaculture costs and enables large-scale, green, and ecological shellfish aquaculture in bottom sea areas, demonstrating strong applicability and economic viability.

The application discloses a kind of natural microhabitat mimic eel ecological nest and indoor circulating water integrated aquaculture method, belong to special aquatic facilities breeding field.Ecological nest is modularization detachable structure, from top to bottom includes: upper biological water purification layer, middle layer bionical habitat layer and lower layer pollution collection and flow guide layer, upper biological water purification layer is mixed by diatomite, porous volcanic rock and biological carrier according to 2:1:1, and aquatic plants are planted;Middle layer bionical habitat layer is equipped with graded curved corridor with inner diameter of 8-10mm and 16-20mm;Lower layer pollution collection and flow guide layer is equipped with 1.5° inclined flow guide groove, hollow bottom hole and sewage outlet at bottom, and nest material is biobased composite material made of plant fiber, degradable plastic and diatomite according to 3:5:2.The application realizes habitat, prevents residual killing, water purification, automatic sewage integration, and the survival rate of eels cultured by the ecological nest is 92.3%, the residual killing rate is only 2.1%, ammonia nitrogen is less than or equal to 0.2mg / L, unit output is increased by 42%, and water replenishment amount is reduced by 65%.

The utility model relates to the technical field of drainage devices, in particular to a building anti-blocking rainwater drainage device which comprises a drainage pipe, a filter screen is arranged at the input end of the drainage pipe, a support is arranged at the input end of the drainage pipe, a rotating column is rotationally connected to the middle of the support through a bearing, and a fixing plate is arranged at the left end of the rotating column. An elastic assembly is arranged at the left end of the fixing plate, and a scraping plate is arranged at the left end of the elastic assembly. According to the building anti-blocking rainwater drainage device, a motor is started to drive a driving belt wheel to rotate, then under the transmission effect of a belt, a driven belt wheel can drive a rotating column, a fixing plate, a telescopic rod, a telescopic cylinder and a scraping plate to rotate, then the scraping plate can scrape impurities on a filter screen, and the situation that a drainage pipe is blocked is avoided; the problems that in the prior art, a rainwater drainage pipe is often blocked, so that rainwater cannot be smoothly drained, and rainwater deposition is caused are solved.