3results about How to "Offset damage" patented technology

This utility model discloses a highly applicable continuous reaction overflow tank, comprising a set of multi-stage series reaction tanks (1), with adjacent reaction tanks (1) connected by an overflow pipe (2). Each reaction tank (1) is provided with a feed inlet (3) and a stirring device (4). The reaction tank (1) is also provided with a flow guiding device (5) that cooperates with the overflow port (11a). The flow guiding device (5) includes a flow guiding hood (51), which is closed at the upper end and open at the lower end. Inside the hood, a set of cross-arranged flow guiding plates (52) are provided from bottom to top, so that the inner cavity of the flow guiding hood (51) forms an S-shaped flow guiding channel (53). The advantages of this utility model are that it avoids the direct impact of the feed on the overflow port, offsets the damage of the overflow pipe to the flow field, satisfies the requirements of uniform material mixing and reaction, achieves continuous reaction, improves production efficiency and reaction effect, and reduces the content of valuable metal lithium ions in the waste residue.

A joint structure of an assembled rectangular tunnel lining and an installation method thereof, comprising a tunnel section and a rectangular tunnel segment, wherein the tunnel section is formed by splicing a plurality of rectangular tunnel segments, and the radial cross-section of the tunnel section is rectangular, wherein the rectangular tunnel segment is formed by placing the end face of a rectangular tunnel segment prefabricated with a cylindrical connecting steel column hole upward, vertically, inserting a connecting steel column, adding an adhesive material into the steel column hole, and placing the end face of a rectangular tunnel segment prefabricated with a truncated cone-shaped connecting steel column hole downward, butting and assembling downward, and under the dual action of the joint and the connecting steel column, the upper and lower rectangular tunnel segments are tightly assembled into a whole. The present invention has the advantages of high on-site assembly accuracy, easy control, fast construction, small workload, small impact on the surrounding environment, and environmental protection, and can effectively reduce the construction period and cost in assembled tunnel projects.

The invention discloses a device, a machine tool and a method for restraining composite material drilling damage through negative pressure, solves the problem that in the prior art, damage is prone to occurring in the composite material machining process, and has the beneficial effect of avoiding composite material damage, and according to the specific scheme, the device for restraining composite material drilling damage through negative pressure comprises a shell; the shell supports the cutter clamping piece, the cutter clamping piece is used for installing the hollow drill, the hollow drill is exposed out of the shell, the cutter clamping piece drives the hollow drill to rotate relative to the shell, the shell is independently connected with the vacuum generator and the air generator, the shell is hollow, and the cutter clamping piece is communicated with the interior of the shell and the interior of the hollow drill. When the vacuum generator works, air at the position of the hollow drill is exhausted through the shell and the cutter clamping piece so that upward pulling force can be provided for a composite material to avoid drill hole damage, and air generated when the air generator works is used for blowing away cut materials at the position of the hollow drill.