7results about How to "Improve dehydration rate" patented technology

This invention discloses a composite dewatering agent for sludge dewatering in wastewater treatment and its preparation method, belonging to the field of sludge treatment technology. The composite dewatering agent comprises, by weight, the following raw materials: 30-50 parts chitosan-acetylcysteine-modified coal gangue, 20-40 parts cationic starch-modified fly ash fiber, and 1-3 parts nonionic surfactant. The composite dewatering agent of this invention, comprising chitosan-acetylcysteine-modified coal gangue, cationic starch-modified fly ash fiber, and nonionic surfactant, significantly improves the sludge dewatering rate through the synergistic effect of each component, utilizing multiple mechanisms such as charge neutralization, adsorption bridging, and the release of bound water through extracellular polymer destruction. This invention fully utilizes solid waste and natural materials in the preparation of the composite dewatering agent, achieving resource utilization of solid waste while avoiding residual pollution from traditional polyacrylamide flocculants and reducing environmental hazards.

This invention relates to a spatial multi-layer ultra-high pressure belt dewatering system and method, comprising a main frame, a feeding device, a feeding device, a filter belt, a filter belt traction machine, a filter press hydraulic press, a hydraulic station, and a controller. The feeding device, feeding device, filter belt traction machine, and filter press hydraulic press are connected and installed on the main frame; the output end of the feeding device is connected and installed above the feeding device. The dewatering method includes starting the equipment, feeding, filter press dewatering, and unloading. This invention offers higher dewatering efficiency and lower cost, making it a more effective organic waste dewatering device for reducing pollution and carbon emissions.

The application discloses a tap water plant sludge dewatering and discharging device and belongs to the technical field of sludge treatment. The device comprises a lifting bottom plate, the upper surface of the lifting bottom plate is provided with a filtering mechanism, the filtering mechanism comprises a filtering assembly for playing a dewatering filtering role on sludge, a plugging assembly for driving the filtering assembly to rotate and playing a regulating role on the opening and closing state of the bottom opening end of the filtering assembly, and a pressurizing assembly for playing a compression role on the sludge in cooperation with the filtering assembly, the pressurizing assembly is arranged at the top of the filtering assembly, and the plugging assembly is arranged at the bottom of the filtering assembly. The filtering assembly comprises a second limiting support disc. Through the cooperation of multiple structures, centrifugal dewatering and extrusion dewatering are performed on the sludge. Through the cooperation of the two dewatering modes, rapid and sufficient dewatering of the sludge is realized, and the application can automatically and rapidly discharge the dewatered sludge.

This invention relates to a method for shelling camellia oleifera fruits. The method involves using a low-temperature airflow to treat the fruits, causing the fruit's hilum to crack at a distance of 2-10 mm. Mechanically assisted shelling is then performed, followed by sieving to obtain camellia oleifera seeds. The low-temperature airflow refers to an airflow with a temperature ≤50℃. This invention provides a novel approach to shelling camellia oleifera fruits, and the described process promotes shelling more gently and effectively.

The present application relates to the technical field of petroleum chemical industry, and particularly relates to a biochemical composite demulsifier, which comprises a microbial demulsifier and a chemical demulsifier, wherein the microbial demulsifier is prepared from a fermentation liquor of pseudomonas aeruginosa, and the chemical demulsifier is a mixture of trimethylolpropane polyether and epoxy polyether, and has the advantages of excellent demulsification effect and low cost.

The utility model belongs to the technical field of menthol processing, and particularly relates to a menthol grading dehydration device which comprises a dehydration box body, a supporting ring plate is fixedly connected to the top end of the dehydration box body, a rotating ring plate is rotatably connected to the inner wall of the supporting ring plate, and a mounting plate is rotatably connected to the inner wall of the rotating ring plate. An exhaust assembly is fixedly connected to the mounting plate, and the supporting ring plate and the mounting plate are fixed through a frame rod; according to the menthol dehydration device, a rotating ring plate, a partition plate, a rotating plate, a storage box and an electromagnetic heater form an assembly capable of performing multi-stage heating on menthol, so that the content of water vapor in a dehydration cavity can be continuously reduced when the menthol is subjected to multi-stage dehydration in each cavity, and the content of water vapor in the dehydration cavity can be continuously reduced when the menthol is subjected to multi-stage dehydration. The amount of water vapor in each cavity can be continuously reduced, so that the menthol dehydration efficiency and dehydration rate are higher, and the menthol dehydration effect is facilitated.

This utility model discloses a solid-liquid separation device for alfalfa fermentation, including a support rod with a pressing assembly at the top. The pressing assembly includes a mounting frame with a material cylinder fixedly connected to its inner wall. A hydraulic rod is fixedly installed inside the top cover, and a pressure plate is fixedly connected to the movable end of the hydraulic rod. A funnel is rotatably connected to the inner walls of two auxiliary supports. One side of the reinforcing rib is fixedly connected to the movable end of the hydraulic rod. This utility model relates to the technical field of solid-liquid separation equipment. After a certain period of time, the servo motor is turned off to stop the funnel from rotating. Then, the hydraulic rod is restarted to drive the pressure plate down, thus pressing the material in the funnel to completely squeeze out any residual liquid and improve the dehydration rate. The liquid falls from the outlet of the conical hood onto the surface of the conical sleeve. Since the surface of the conical sleeve is curved, the liquid also slides into the annular collection box for collection.