67 results about "Open treatment" patented technology

The invention relates to an opening treatment method for pipe-roofing continuous perforation. Pipe-roofing opening water-stopping is characterized in that a circular water-stop rubber seal board is disposed at each opening, and a sector rubber pressure board is connected and fastened to an underground structure of each hole through expansion bolts. The rubber seal boards are mutually tangent at the continuous openings and are mutually overlapped to form a whole. A grouting pipe is pre-embedded into an opening structure for water stopping at the juncture inside each opening, and the opening and the structural juncture are filled with grout for water stopping after entry of the grouting pipe into the hole. By the opening treatment method, impact on adjacent pipe roofs can be reduced greatly, the water-stop effect of the openings and the water-stop effect of the juncture of each opening with the pipe roof are enhanced, and the opening treatment method is superior to the traditional methods in terms of technical feasibility, operating efficiency and implementation effect. Presently, the opening treatment method is applied to underground channel pipe roofing at a source N0.33 in the Shanghai bund.

The invention discloses a small-size deep foundation pit supporting structure for pipe jacking construction. The supporting structure is constructed through the steps that firstly, bored perfusion pile rows are constructed around the determined foundation pit position, a high-pressure jet grouting pile row is constructed in a gap formed between every two adjacent bored perfusion pile rows, a side slope is excavated from the ground, an annular crown beam is poured on the tops of the bored perfusion pile rows, asphalt felt is laid between the crown beam and pile bodies, and then a brick wall is built on the top of the crown beam; secondly, a foundation pit is excavated after the crown beam reaches the required strength, and after the foundation building surface meets the construction requirement, the side wall of the foundation pit and an inner lining (the position where a jacking pipe is arranged in a penetrating mode is reserved) of a bottom plate are poured with reinforced concrete; lastly, opening treatment is conducted on the jacking pipe, a second-stage reinforced concrete layer is built on the dismantling face, and after the later-period pipe jacking construction requirements are met, overall supporting structure construction is completed. According to the small-size deep foundation pit supporting structure for pipe jacking construction, a conventional cantilever pile supporting method is broken through, and the supporting structure arranged in the foundation pit in a finite space meets the supporting requirement of a surrounding complex environment; meanwhile, by combining the construction characteristics of pipe jacking construction, basic guarantee conditions are provided for normal and safe construction of pipe jacking engineering.

The invention discloses a device for producing regenerated white cotton of colored cotton textile and its process, where there are two parallel reaction cylinders, there are top and bottom crosswise communicating tail gas pipes on the two reaction cylinders, and each tail gas pipe is installed with a valve, a flow meter and a vacuum pump; there is a UV lamp arranged in each reaction cylinder; another flow meter is installed on each air inlet pipe, and a pressure meter and another vacuum pump are installed on each air outlet pipe; the production process is: firstly humidifying the colored cotton textile to be processed, by steam, to make the water content of the colored cotton textile at 10-25%; making prophase decoloring treatment on the humidified cotton textile by ozone at a concentration of 5-25%; synchronously performing late UV decoloring treatment on the treated cotton textile in an ozone-containing environment to make the cotton textile turn white; and finally making cotton opening treatment on the white cotton textile to make the regenerated white cotton. The invention has the characters of simple process, high production efficiency, no pollution, no damage to cotton spinning material, saving water resources, and safety and reliability in production.

The invention discloses an open treatment method of arsenic in copper ashes and relates to a method for open pre-treatment of harmful arsenic impurities in intermediate material ashes in a copper smelting process. The wet-process open treatment method is characterized in that the treatment process comprises the following steps of: adding copper ashes to a solution containing sodium hypochlorite and sodium hydroxide; carrying out arsenic leaching reaction and filtering to obtain arsenic-removed slag and arsenic-removed solution; and recycling valuable metals including copper, lead, zinc and bismuth of the arsenic-removed slag. The wet-process open treatment method disclosed by the invention can be used for carrying out open treatment on the arsenic in the copper ashes before recycling the valuable metals, so that the subsequent recycling process of valuable metals is facilitated. Meanwhile, a utilization way for residual chlorine absorption liquid waste is found, so that the secondary pollution is avoided. Besides, the wet-process open treatment method for arsenic in the copper ashes is low in process cost and high in arsenic removal rate, and has great significance of improving environment protection, resource control and economical benefits.

Salt or acid solution is stored inside a frac sleeve instead of being pumped from a surface location. A mechanically-actuated valve releases the stored salt or acid solution into the borehole to electrochemically degrade the frac ball and allow it to pass through the seat. The stored fluid can be immediately released upon mechanical actuation or released after a specified delay using an integrated timer. In multiple sleeve applications a first ball shifts a first sleeve to open treatment ports and a second ball shifts a second sleeve to close the treatment port and open screened production ports while releasing the stored material either between the seated objects or above one of the seated objects to initiate the disintegration that will allow objects on both seats to disintegrate and pass through.

The invention provides a complete peeling and separation device with an opening function for lotus seeds. The device includes a shell; a large-particle opening device is fixedly connected to the middle of the top of the shell; a screen is fixedly connected to the lower side of the large-particle opening device inside the shell; the screen is obliquely arranged towards the lower right, and the right part of the screen is provided with a falling through hole; the left side of the falling through hole on the screen is fixedly connected to a first flow guide plate; the first flow guide plate is obliquely arranged towards the lower left, and the left end of the first flow guide plate is connected to a small-particle opening device; the inner side wall of the shell is fixedly connected to a second flow guide plate below the small-particle opening device; the second flow guide plate is funnel-shaped; and a peeling device is fixedly connected to the middle part of the lower side of the secondflow guide plate. The device has the following beneficial effects: firstly: a first rotating shaft drives a first rotating cylinder to rotate, and the first rotating cylinder drives first opening teeth to rotate, and the first opening teeth are exposed from a through groove so as to carry out opening treatment on superficial shells of the lotus seeds.