5results about How to "No escape" patented technology

The invention relates to a light-weight pressure-maintaining gas-maintaining coring device for a deep coal mine and a using method, the coring device comprises an outer pipe, a center rod, a core barrel, a pressure-maintaining controller, a clamp spring and a core falling prevention device, the lower end of the outer pipe is connected with a coring drill bit, the lower end of the center rod is connected with the core barrel, and the core falling prevention device and the clamp spring are installed at the lower end of the core barrel; the core falling prevention device is positioned below the clamp spring and above the coring drill bit; the core falling prevention device comprises a plurality of discs arranged in the circumferential direction and an elastic piece used for driving the multiple discs to be folded and closed towards the middle. The core falling prevention device is added, so that the equipment has a core falling prevention function, and when the rock core is broken by the snap spring, the core falling prevention device can effectively prevent a coal sample from falling out of the rock core barrel, and the heart taking rate is increased.

This utility model relates to the technical field of spray dust suppression devices, and discloses a spray dust suppression device for a roadheader. It includes a threaded head, a water supply pipe fixedly installed at the bottom of the threaded head, a branch pipe fixedly installed at the bottom of the water supply pipe, and a three-stage mist particle covering dust suppression mechanism fixedly installed at the end of the branch pipe away from the water supply pipe. This roadheader spray dust suppression device, through its three-stage mist particle covering dust suppression mechanism, utilizes three high-pressure atomizing nozzles (a first, second, and third nozzles) with different angles and layouts. High-pressure atomizing nozzle a first nozzle blocks upward-rising dust, high-pressure atomizing nozzle a second nozzle captures dust escaping from the edges, and high-pressure atomizing nozzle a third nozzle forms a three-dimensional interception barrier. The three nozzles complement each other in their coverage, effectively covering and suppressing dust in the area above and to the sides of the conveyor belt, while simultaneously blocking dust escape channels, thus improving the overall dust suppression efficiency of the roadheader's transport section.

The present invention relates to an embolization microcatheter, comprising: a delivery section having a delivery cavity; an embolization section, one end near the distal end is recessed towards the embolization cavity of the embolization section and forms a pressure relief portion having a pressure relief hole; one end of the embolization section near the proximal end is sleeved on one end of the delivery section near the distal end, and the embolization cavity is communicated with the delivery cavity; during embolization, an embolization material is continuously injected into the embolization cavity through the delivery cavity, the pressure relief portion bulges outwards in a direction away from the embolization cavity, and then the embolization section gradually expands from the direction of the distal end towards the direction of the proximal end, and promotes the separation of the embolization section from the delivery section to achieve the purpose of embolizing blood vessels. When the embolization cavity is filled with the embolization material, the embolization material will squeeze the wall of the embolization cavity and increase the diameter of the wall of the embolization cavity, thereby promoting the separation of the embolization section from the delivery section to achieve the purpose of embolizing the target blood vessel jointly by the embolization section and the embolization material.

The utility model belongs to the technical field of conveying, and particularly relates to a ton label integrated bag opening station which comprises an installation frame, a bag opening device and a bag opening device. The feeding bin is arranged on the mounting frame, a label bag feeding opening is formed in the side edge of the feeding bin, and a ton bag feeding opening is formed in the top of the feeding bin; the negative pressure filtering mechanism is inserted into the feeding bin and is arranged close to the label bag feeding opening; the flapping mechanism is arranged on the mounting frame and located above the ton bag feeding opening; the control module is electrically connected with the negative pressure filtering mechanism and the flapping mechanism; according to the ton-label integrated bag opening station, the label bag feeding opening is formed in the side edge of the feeding bin, and the ton bag feeding opening is formed in the top of the feeding bin, so that the feeding bin can be matched with material bags with the specifications of ton bags and label belts; meanwhile, the negative pressure filtering mechanism is arranged, so that dust dissipation is avoided when the label bag feeding opening is used; and the flapping mechanism is arranged to help the materials to fall off when the ton bag feeding port is used.

The application discloses a cutting synergist for liquefied petroleum gas and a preparation method thereof, and belongs to the technical field of cutting synergists. The cutting synergist is prepared by mixing the following components with the mass content: an alkyl ferrocene mixture 5-8%, n-octane 6-10%, ethylene glycol monoethyl ether 8-10%, isooctyl nitrate 10-15%, acetone 15-25%, and 200# solvent oil 25-45%. The application is a high-efficiency energy-saving synergist for cutting liquefied petroleum gas, and the performance of the liquefied petroleum gas after the addition of the synergist can reach and exceed the cutting performance level of the original petroleum gas and acetylene gas, and the liquefied petroleum gas can completely replace acetylene gas, natural gas and pure propane to be used as industrial gas for metal cutting. The product performance exceeds that of natural gas, industrial propane and the same kind of synergists on the market, and has a wide application prospect, and is a great breakthrough of industrial gas in the industrial field of China.