39results about How to "Does not affect pouring" patented technology

The invention relates to a method and a device for keeping molten steel clean in casting of a continuous casting ladle. When the ladle is cast, a slide water port is opened; a drainage agent flows out from the slide water port, flows onto a casting cap by a long water port of a middle ladle, and flows into a recoverer for recovery along the upper surface of the casting cap; after the drainage agent flows, the molten steel flows down; one part of the molten steel mixed with the drainage agent flows into the drainage agent recoverer along the upper surface of the casting cap; then, the casting cap is corroded by the molten steel for leaking, and the molten steel flows down; after one pot of steel is cast, the long water port is pulled out from the molten steel to deviate from the surface of middle ladle slag; a slag separator is pressed into the molten steel of the middle ladle through middle ladle slag; the side wall of the slag separator is pressed into the molten steel to stop the middle ladle slag from entering the slag separator; and the recoverer is replaced for casting a next ladle. The method and the device have the following advantages: the whole structure is simple; the operation is convenient; the drainage agent and the middle ladle slag can be effectively prevented from mixing into the molten steel of the middle ladle in casting of the ladle; the inclusion in steel is reduced; the steel quality is stable; and the variety quality is stable.

The invention belongs to the field of medical instruments, and particularly relates to an improved structure of a cryopreserved tube. The improved structure comprises a tube body and a tube cap, wherein the tube cap is connected with the tube body in an inner rotating manner; the tube cap is provided with an external thread; a tube opening of the tube body is provided with an internal thread; the internal thread is an internal thread section or an internal thread point provided with a notch therebetween. The cryopreserved tube provided by the invention is good in sealing effect, does not influence the pouring of substances inside the tube, is easy to screw, high in strength, has a mark classification function, saves the material, and is low in manufacturing cost.

The invention discloses an unsupported disassembly-free concrete hole forming method. The method comprises the following steps: carrying out on-site lofting on the size of a concrete hole according toa design drawing and a concrete pouring construction condition; simply reinforcing a thermal insulation material according to the field setting-out size in combination with the thickness of the thermal insulation material under the condition of not occupying the boundary line of the hole size structure; setting out the size of a water outlet bag according to the actual size of the concrete hole,and laying the water outlet bag into the hole thermal insulation material; arranging a plurality of refrigeration instruments in the water bag in the hole thermal preservation material, introducing water into the water bag to a certain volume, starting refrigeration equipment, and refrigerating water in the water bag to be in an icing state through the refrigeration instruments in the water bag; according to the concrete construction progress outside the hole, slowly filling the remaining volume of the water bag with water, and gradually filling full the water bag to ensure that the icing bodydoes not occupy the boundary line of the hole size structure; and after the concrete around the holes reaches the mold stripping age, shutting down the freezing equipment, the ice gradually melting into water, and taking out the thermal preservation material.

The invention relates to a fermenting grains turning-over device used for vinegar production. The fermenting grains turning-over devices are arranged above a fermenting vat, each fermenting grains turning-over device comprises a support plate, plug boards are respectively arranged at the left and right sides of the support plate, a plurality of rotating shafts are inserted to and arranged on eachplug board, one end of each rotating shaft is further spirally connected with a rotating block, a plurality of rotating pieces are arranged on each rotating shaft, a rotating disk driven to rotate bya motor is arranged below the support plate, a plurality of stirring rods are arranged below the rotating disk, and a plurality of material driving blocks are arranged on each stirring rod. The devicedisclosed by the invention is simple in structure, reasonable and novel in design, convenient in operation, capable of effectively completing stirring to vinegar fermenting grains, and suitable for being put into production in middle and small-sized enterprises, and thus increasing the working efficiency.

The invention discloses an inner diaphragm type concrete-filled steel pipe transfer node structure and a construction method thereof, wherein an inner diaphragm type steel pipe concrete transfer node structure includes a pillar, a slanted column and a socket for connecting the slanted column to the pillar There is a section on the inclined column, and the section includes a cross section. The receiving frame is fixedly arranged inside the pillar and is located at the top of the pillar. The receiving frame includes a lower inner partition and a vertical inner rib, and the vertical inner rib is fixed on the On the lower inner partition, the shape of the vertical inner rib corresponds to the cross-sectional shape of the oblique column, and the oblique column is fixed to the vertical inner rib through the section. The invention combines the advantages of the steel pipe concrete and inclined column conversion structure, and has the advantages of direct force transmission, high bearing capacity, small component cross-sectional size, favorable use of building space, no need for formwork, less on-site welding workload, and guaranteed construction quality, etc. advantage. The two slanted columns and the beam system constitute a triangular force transmission mode, and have good resistance to lateral forces.

The invention relates to the field of structural engineering in civil engineering, in particular to a hollow sandwich filled steel tubular column-a steel beam connection adopting a one-way fastening bolt. The one-way fastening bolt component passes through an inner steel tube and an outer steel tube on one side, one end of an end plate component is abutted against the wall of the outer hollow sandwich filled steel tube, and an inner steel tube and an outer steel tube on the other side are connected with a steel beam. During construction, the inner steel tubes and the outer steel tubes are preserved with holes; then the bolt component passes through the end plate and the holes on the steel tubes and is screwed; and finally, sandwich concrete is poured to finish the construction of the connection. The connection has definite force transmission, reliable performance, convenient construction and good economy and is suitable for high-rise and large-span buildings and other relevant buildings.