Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

30results about How to "Save water and energy" patented technology

Method for recycling waste acid generated in production of sulfuric acid from smelting flue gas

The invention provides a method for recycling waste acid generated in production of sulfuric acid from smelting flue gas. The method comprises the following steps: reducing waste acid by using Fe, performing evaporative crystallization to obtain FeSO4 crystals, enabling FeSO4 crystals to react with filter liquor, sulfuric acid and an oxidant generated in the activation step of producing activated clay from bentonite, so as to obtain polymeric aluminum ferric sulfate; selectively, enabling polymeric aluminum ferric sulfate to react with an organic flocculating agent, so as to obtain an organic-inorganic composite flocculating agent. According to the recycling method, the waste acid generated in the production process of sulfuric acid from smelting flue gas is adopted as a main raw material, and waste heat of smelting flue gas is utilized to produce the activated clay and the organic-inorganic composite flocculating agent which have broad markets in various industries, so that the problems about recovery of waste heat of high-temperature flue gas, treatment of waste acid, and seasonal storage of by-product sulfuric acid are solved; besides, plenty of valuable industrial products can also be produced; therefore, the method has quite high social benefit, environmental benefit and economic benefit.
Owner:BEIJING OTC ENERGY & ENVIRONMENT ENGINEERING PUBLIC LIMITED COMPANY

Full-automatic closed-circuit circular extraction device

The invention discloses a full-automatic closed-circuit circular extraction device. The device comprises a magnetic stirring water bath pot, an evaporation kettle, an extraction kettle, ultrasonic/microwave auxiliary equipment, a condenser, a support frame, a horizontal support, an extraction container and a dual-sealing cover; a support is arranged at the pot bottom; the evaporation kettle is arranged in the pot; a sealing cover and a steam pipe are arranged on the top of the evaporation kettle; a flow guide pipe is arranged between the evaporation kettle and the extraction kettle; the dual-sealing cover comprises an inner cover and an outer cover; the outer cover is fixedly connected with the extraction kettle in a sealing mode; the extraction container is connected with the inner cover in a sealing mode; mesh holes are formed in the extraction container, and a return pipe is arranged on the inner cover; the condenser is fixed to the support frame and comprises a water cooling part, a natural cooling part and a drainage pipe; the drainage pipe is detachably connected with the return pipe in a sealing mode; the natural cooling part is detachably connected with the steam pipe in a sealing mode; the support frame, the magnetic stirring water bath pot and the ultrasonic/microwave auxiliary equipment are arranged on the horizontal support. The whole device is a closed-circuit system, no solvent is lost in the extraction process, and steam in the evaporation kettle serves as driving force for achieving automatic circulation of the whole system.
Owner:ZHENGZHOU UNIV

Cotton knitted fabric dyeing and finishing method and water bath device

The invention provides a cotton knitted fabric dyeing and finishing method and a water bath apparatus. The method comprises: carrying out polishing enzyme inactivation treatment: dipping a cotton knitted fabric in bio-polishing enzyme working solution, firstly heating up, then carrying out heat preservation, and taking out the cotton knitted fabric to carry out inactivation treatment; carrying out dyeing and finishing treatment; after scouring and bleaching the cotton knitted fabric, adding a dye, anhydrous sodium sulphate and sodium carbonate into the bio-polishing enzyme working solution to carry out biological enzyme polishing and dyeing one-bath treatment. The apparatus used by the dyeing and finishing method comprises a pot body and an independent constant-temperature water bath unit in the pot; the constant-temperature water bath unit comprises a water bath tank, a clamping device, a supporting device, a heating device and a control panel. The cotton knitted fabric dyeing and finishing method and the water bath apparatus have the beneficial effects that by the method provided by the invention, a high-quality product can be produced; the apparatus used by the dyeing and finishing method provided by the invention can implement accurate temperature control and is applicable to various diameters of containers.
Owner:南通海林集团有限公司

A kind of resource utilization method of waste acid produced in smelting flue gas to produce sulfuric acid

The invention provides a resource recovery method for waste acid produced in the production of sulfuric acid from smelting flue gas. The method is as follows: reducing the waste acid with Fe, obtaining FeSO4 crystals through evaporation and crystallization, and combining the FeSO4 crystals with bentonite to prepare activated clay. The filtrate produced in the activation step reacts with sulfuric acid and an oxidant to obtain polyaluminum ferric sulfate. Optionally, the polyaluminum ferric sulfate is reacted with an organic flocculant to obtain an organic-inorganic composite flocculant. The resource recovery method uses the waste acid produced in the process of producing sulfuric acid from smelting flue gas as the main raw material, and utilizes the waste heat of smelting flue gas to produce activated clay and organic-inorganic composite flocculants that have a broad market in various industries, solving the problem of high temperature Flue gas waste heat recovery and waste acid treatment problems, while solving the seasonal storage problem of by-product sulfuric acid, can also produce a large number of valuable industrial products, with high social, environmental and economic benefits.
Owner:BEIJING OTC ENERGY & ENVIRONMENT ENGINEERING PUBLIC LIMITED COMPANY

Sequence controller for extraction points

A programmable sequence controller for extraction points and peripheral devices associated therewith for controlling sequences having individual sequence steps comprising open-loop-controlled and / or closed-loop-controlled dispensing of liquid media, the controller comprising a control unit for data processing and for storing and executing selectable sequence programs (2), having a display and a possibility for sequence program selection and a control panel for inputs, as well as interfaces for sensors and interfaces for actuating control members connectable to the control unit. In order to configure and edit the selectable sequence programs (2), the sequence controller has a modular programming surface with module boxes (1) for the individual sequence steps (3), into which settings and criteria for the extraction point in question and peripheral devices associated therewith as well as desired properties of the liquid medium that is to be dispensed or breaks in the dispensing procedure can be input for each sequence step in a corresponding module box (1) via the control panel, and the sequence steps can be strung together in the form of the corresponding module boxes (1) to form a sequence program (2) for the sequence. The invention additionally comprises a method for configuring such a sequence controller, and uses of the programmable sequence controller.
Owner:OBLAMATIK AG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products