7results about How to "Economically reasonable" patented technology

The invention relates to the technical field of concrete dams, in particular to a concrete dam deep crack comprehensive treatment method which comprises the following steps: firstly, drilling a crack stopping hole in the tail end of a crack to prevent the crack from extending; then slotting along the crack, burying an exhaust pipe, and sealing the crack; then, deep reinforcement and anti-seepage treatment are carried out step by step, specifically, grouting seam penetrating holes are drilled, superfine cement grout is poured, chemical grouting seam penetrating holes are drilled in the upstream face, and epoxidation chemical grout is poured; then, an SR anti-seepage cover plate is pasted on the upstream face crack area; and finally, integrally spraying a polyurea coating. By means of the multi-layer treatment process combining structure reinforcement and flexible seepage prevention from inside to outside, the reliability and durability of crack treatment are remarkably improved, the dam face can be kept uniform and attractive in appearance, and the method has the advantages of being reliable in technology, economical and reasonable.

This utility model relates to a road pile support structure adjacent to multiple high-voltage power towers. It includes a first retaining wall installed on one side of the road adjacent to the multiple high-voltage power towers and located at the road edge line between the tops of the road cutting slopes at both ends. Second retaining walls are respectively installed within the first retaining wall between two adjacent high-voltage power towers and on the side of the road cutting slope near both ends. Crown beams are installed at the top of both the first and second retaining walls. Tie beams are respectively installed between the second retaining wall between two adjacent high-voltage power towers and the first retaining walls located on both sides of the second retaining wall. Tie beams are also installed between the second retaining wall on the side of the road cutting slope near both ends and the first retaining wall. This utility model, by setting up the first and second retaining walls and coordinating with tie beams to form a combined support system, is easy to operate, highly safe, and economical, ensuring the safety of the power towers and surrounding areas.

The utility model relates to a mud monitoring and early warning system for drilling. The utility model discloses a mud pump, first high -pressure rubber pipe, electromagnetic flowmeter, display, check valve, second high -pressure rubber pipe and drill rod, the mud pump is passed first high -pressure rubber pipe with electromagnetic flowmeter intercommunication, and electromagnetic flowmeter is connected with display, and electromagnetic flowmeter is connected with check valve through flange, and check valve is connected with second high -pressure rubber pipe, and second high -pressure rubber pipe is connected with drill rod. The electromagnetic flowmeter and display set up between drill rod and mud pump can carry out monitoring and early warning to the real -time flow data of the mud passing. The utility model has the advantages of simple structure, economic reason, reusability and wide popularization prospect.

This disclosure relates to the field of mineral processing technology and provides a method for efficiently recovering zirconium, hafnium, and titanium from paleoriver-lacustrine zircon-hafnium placer deposits. The method includes: pre-treating the paleoriver-lacustrine zircon-hafnium placer ore, performing gravity separation pre-enrichment, grinding, desulfurization flotation, weak magnetic separation, and strong magnetic separation to obtain strong magnetic separation concentrate and strong magnetic separation tailings; performing gravity separation on the strong magnetic separation tailings to obtain zirconium-hafnium concentrate and gravity-separated zirconium-hafnium tailings; classifying the strong magnetic separation concentrate to obtain coarse-grained concentrate and fine-grained concentrate; performing coarse-grained gravity separation on the coarse-grained concentrate to obtain gravity-separated titanium pre-enriched concentrate and gravity-separated titanium pre-enriched tailings; performing fine-grained strong magnetic separation on the fine-grained concentrate to obtain magnetically separated titanium pre-enriched concentrate and magnetically separated titanium pre-enriched tailings; and combining the gravity-separated titanium pre-enriched concentrate and the magnetically separated titanium pre-enriched concentrate for titanium flotation to obtain ilmenite concentrate and titanium flotation tailings. The method disclosed herein enables the synergistic enrichment and efficient recovery of zirconium, hafnium, and titanium in novel paleofluvial lacustrine zircon-hafnium placer deposits.

The invention discloses a microjet continuous synthesis process of triazole. The method comprises the following steps: preheating formamide, keeping hydrazine hydrate at normal temperature, continuously conveying hydrazine hydrate to a microjet mixing reactor through independent feeding channels according to a molar ratio of 4: 1 to 6: 1, and carrying out high-speed jet mixing and reaction in a mixing cavity; continuously conveying a reaction product to a buffer heat preservation tank for heat preservation reaction; and rectifying to recover formamide for recycling, and crystallizing a tower bottom material to obtain a triazole product. According to the invention, the whole-process continuous production of triazole synthesis is realized, so that the product quality is stable, the batch-to-batch fluctuation is small, the occupied area of equipment is reduced by about 80%, and the automation degree is high. By implementing the method disclosed by the invention, a high-quality triazole product with the yield of more than or equal to 95%, the purity of more than or equal to 99% and the content of 4-aminotriazole by-products of less than or equal to 1% can be produced, the pharmaceutical-grade standard requirements are completely met, and a new process route which is advanced in technology, economical, reasonable and environment-friendly is provided for industrial production of triazole.

The application discloses a rectangular tube single-layer net shell connecting node structure and a construction method thereof, and comprises a supporting core column, a plurality of variable-diameter corbels, two face plates and two side plates which are oppositely arranged, the width of the face plate gradually decreases from a wide end to a narrow end, the same side of the two face plates oppositely extends to form a slant flange, the slant flange is arranged outwardly, the side plate is connected to the slant flange on the same side of the two face plates, the outer diameter of the thick diameter end of the variable-diameter corbel close to the narrow end is larger than that of the thin diameter section of the variable-diameter corbel far from the narrow end, the narrow end and the slant flange are connected to the supporting core column, the plurality of variable-diameter corbels are arranged along the circumferential direction of the supporting core column, the adjacent two variable-diameter corbels are connected, the thin diameter end is connected to a rod piece, and the face plates of the adjacent at least two variable-diameter corbels at one end of the supporting core column are integrally bent and formed into a steel plate. The application solves the problems of difficult processing and installation of the space structure connecting node of the plurality of rod pieces of the single-layer net shell structure system.