6results about How to "Cause blockage" patented technology

This invention provides a high-temperature heat treatment device and method for the mass production of catalysts for fuel cell water electrolyzers. The tubular furnace has a feed pipe at its inlet end, and multiple atomizing nozzles communicating with the feed pipe are located inside the furnace. An inner lining forming the heat treatment zone within the furnace is provided inside, with a storage compartment between the lining and the furnace body. The lining has multiple micropores communicating with the storage compartment. A discharge pipe is sealed and fixed at the end of the furnace body away from the feed pipe, communicating with the storage compartment. The atomizing nozzles penetrate the lining and communicate with the heat treatment zone. Multiple air guide pipes penetrating the furnace body and the lining are located at the bottom of the furnace. This invention rapidly dries the atomized powder at high temperature, and then utilizes the presence of morphological airflow combined with ultrasonic oscillation to effectively prevent the catalyst from re-agglomerating during the mass heat treatment process, thereby achieving mass and continuous heat treatment and avoiding undesirable phenomena such as insufficient catalyst heat treatment during the heat treatment stage.

The present application relates to the technical field of nuclear power, and especially relates to a seawater erosion resistant composite coating and a preparation method thereof. The composite coating comprises a high-entropy alloy layer and an epoxy resin layer coated on the high-entropy alloy layer. The preparation method comprises the following steps: step one, spraying a mixed powder coating on a substrate by using a low-pressure cold spraying method; step two, in-situ synthesizing a high-entropy alloy coating by remelting the mixed powder coating by induction; and step three, coating an epoxy resin layer on the high-entropy alloy layer. The coating formed by the present application has good sealing property and strong corrosion resistance, and is suitable for a seawater cooling system of a nuclear power plant.

The utility model relates to the technical field of hydraulic engineering, and discloses an efficient desilting device for hydraulic engineering, which comprises a desilting vehicle, a blow-off pipe is arranged on one side of the desilting vehicle, a replacement mechanism is arranged on one side of the blow-off pipe, an adjusting mechanism is arranged on one side of the replacement mechanism, and a processing mechanism is arranged on one side of the adjusting mechanism. According to the efficient desilting device for the water conservancy project, by arranging the treatment mechanism, in the working process of efficient desilting of the water conservancy project through the efficient desilting device for the water conservancy project, large garbage substances in the silt can be crushed through a crushing wheel, and the situation that in the working process of efficient desilting of the water conservancy project, the large garbage substances are crushed is avoided; due to the fact that more other impurities are contained in the sludge at the water conservancy project, when the sludge is efficiently removed, the interior of the efficient dredging device is blocked, subsequent cleaning of the sludge at the water conservancy project is affected, and then the practicability of the efficient dredging device is greatly reduced.

The invention relates to the technical field of metal part machining, and particularly discloses a spraying process pretreatment method for a high-corrosion-resistance metal part in fitness equipment. The spraying process pretreatment method comprises the steps that a base is included, and a storage mechanism is arranged on one side of a spraying box; the storage mechanism comprises a storage barrel, a driving motor is fixed to the top of the supporting frame, a driving frame is fixed to the output end of the driving motor, a mounting rod is fixed in the supporting frame, a swing frame is rotatably mounted on the outer wall of the mounting rod, and a connecting column is slidably mounted in the swing frame; a rotating frame is rotationally mounted at the bottom end of the connecting column, and the bottom end of the rotating frame is fixedly connected with the top end of a stirring frame; according to the electrostatic spraying device, the paint can be prevented from precipitating during placement through the storage mechanism, so that layering during spraying is avoided, the paint can be uniformly sprayed, a nozzle of the electrostatic spraying gun is prevented from being blocked, and the spraying effect and efficiency are improved.

The utility model discloses a vertical column forming device for a compact shelf, which relates to the technical field of compact shelf processing and comprises a vertical column forming component, a vertical column forming component and a vertical column forming component. The oil collecting mechanism comprises a storage box, an observation window, a limiting frame, a sponge mat, a connecting hose, an oil pump and an output pipe; the storage box is fixedly arranged at the top of the front face of the base, the observation window is fixedly embedded in the right side of the front face of the storage box, the limiting frame is fixedly arranged at the top of the inner side of the storage box, the sponge mat is placed at the top of the limiting frame, and the connecting hose fixedly penetrates through the right side of the bottom of the storage box. The oil pump is arranged on the connecting hose and fixedly connected with the storage box. According to the anti-rust oil collecting device, the storage box can be directly used for collecting dripping anti-rust oil, follow-up manual transfer is not needed, meanwhile, blockage of the connecting hose caused by foreign matter can be avoided, and the anti-rust oil collecting device is more convenient in actual use.

The utility model discloses a semi-fixed buoy type ditch ecological water purification device, which relates to the technical field of ecological purification, and comprises a fixed vertical rod, an ecological buoy, a buoyancy component and a growth substrate, the ecological buoy is sleeved on the fixed vertical rod in a sliding manner, the bottom of the ecological buoy is sealed, and the top of the ecological buoy is open; buoyancy parts are arranged at the bottoms of the ecological buoys, growth matrixes are contained in the ecological buoys, water permeable holes are formed in bottom plates of the ecological buoys, water purification plants are planted on the growth matrixes, and the lower ends of the fixing vertical rods are fixed to the bottom of the ditch. The semi-fixed float type ecological water purification device for the ditch can meet the ecological water purification function in the ditch with any width, does not damage the original ditch structure and cause ditch blockage, and is economical, reasonable, scientific and efficient.