18results about How to "Economically reasonable" patented technology

The invention relates to the technical field of mine hoisting equipment, in particular to a multi-level delay-free multifunctional mine hoisting signal system which is characterized in that when the system is used, underground personnel only need to press a going middle section number key on a horizontal middle section signal device, and dotting is carried out after tank taking; a signal dispatcher can clearly see complex lifting information, sends a destination instruction to a lifting driver through mouse operation, and sends a dotting authorization instruction to a horizontal signal worker; the elevator driver operates according to the destination instruction and the dotting signal, the complete design concept enables the operation of the whole lifting signal to be simplified, and from the view of the using effect, the signal system has the advantages of being simple in operation of each link, safe, reliable, stable in operation, convenient to maintain, economical, reasonable, suitable for multi-level lifting and the like, is well received by users, and is worthy of popularization and application. Good popularization and application prospects are realized.

The utility model relates to an embedded-steel-bar-free connecting structure of a newly-added concrete wall body and an existing column, and belongs to the technical field of buildings. The side face section increasing columns are connected with newly-added concrete walls on the two outer sides of the existing frame column. Newly-added horizontally-distributed steel bars are arranged on the two sides of the side face section increasing column respectively, bypass the two sides of the existing frame column respectively, are anchored in the side face section increasing column in a crossed mode and then stretch into a newly-added concrete wall. The problems that according to a traditional method, the number of steel bar planting drill holes is large, and damage to a frame column of an existing structure is large are solved.

The utility model provides a production line for treating organic peroxide sewage, which relates to the field of sewage treatment and sequentially comprises an adjusting tank, a coagulative precipitation tank, a hydrolysis acidification tank, an A / O tank, an MBBR (moving bed biofilm reactor) tank, an MBR (membrane bioreactor) tank, a COD (chemical oxygen demand) separation device and an adsorption device. A water outlet of the regulating tank is communicated with a water inlet of the coagulative precipitation tank, and a water outlet of the coagulative precipitation tank is communicated with a water inlet of the hydrolysis acidification tank; a water outlet of the hydrolysis acidification pool is communicated with a water inlet of the anoxic pool, a water outlet of the anoxic pool is communicated with a water inlet of the aerobic pool, a water outlet of the aerobic pool is communicated with a water inlet of the MBBR pool, a water outlet of the MBBR pool is communicated with a water inlet of the MBR pool, a water outlet of the MBR pool is communicated with a water inlet of the water producing pool, and a water outlet of the water producing pool is communicated with a water inlet of the COD separation device through a water outlet pipe; a water outlet of the COD separation device is communicated with a water inlet of the adsorption device, and a concentrated water port is communicated with the ozone catalysis device. The device has the beneficial effect of effectively treating the organic peroxide sewage.

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.

The invention discloses a method for recycling shale gas skid-mounted equipment. The method comprises the following steps: S1, collecting data; s2, equipment classification: classifying old equipment one by one according to equipment types, use conditions, specifications and models and pressure vessel types, and establishing an identity information list; the equipment is classified by combining the value of the equipment, whether the equipment information is complete and the appearance detection result; s3, returning the equipment to a factory; s4, making a preliminary maintenance and transformation scheme; s5, dismounting the equipment; s6, cleaning and derusting; s7, equipment detection; s8, formulating a specific maintenance and transformation scheme; s9, equipment maintenance and transformation; s10, detecting after maintenance; s11, reassembling the equipment; s12, carrying out overall detection; s13, anti-corrosion paint spraying; s14, performing evaluation after multiplexing; according to the scheme, equipment is repeatedly utilized in combination with a new capacity construction plan, the construction period of a new project can be shortened, and the overall benefit of the project is improved.

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 relates to a quick formwork-erecting-free construction method for a newly-built sandwich structure of an existing multi-storey plant, which comprises the following steps of: mounting a support beam on an existing frame column of the existing multi-storey plant corresponding to the position of the newly-built sandwich structure to be constructed; a plurality of connecting beams are vertically connected between every two adjacent supporting beams; a steel plate is laid on the supporting beam, and the periphery of the steel plate is folded upwards to serve as a side mold of concrete to be poured; a reinforcing mesh is laid on the steel plate; and concrete is poured on the steel plate to form a newly-built sandwich structure. According to the construction method, large machines are not needed in the construction process, the influence on production and operation of an existing plant is low, much labor input is saved, the procedures of steel bar binding and formwork dismantling in traditional engineering concrete structure construction are omitted, the construction production progress under the condition that the space of a reconstruction project is limited is greatly improved, meanwhile, design is ingenious, and the construction cost is low. The structure is simple, economical and reasonable.

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 present invention provides a method for predicting the strength of deep-sea surface sediments based on a random forest algorithm, and uses computational fluid dynamics simulation to obtain the dimensionless penetration resistance coefficient acting on the T-Bar during the T-bar penetration into deep-sea surface sediments under different strengths, different rate effect parameters and different T-bar interface contact conditions. The dimensionless penetration resistance coefficient under the multi-parameter coupling effect is analyzed and trained by the random forest algorithm, and a multi-parameter evaluation method for predicting the dimensionless penetration resistance coefficient of deep-sea sediments is established.

The present invention relates to the field of revetment construction in water source protection areas, and in particular to an ecological revetment in a water source protection area and a construction method thereof. The ecological revetment includes a primary revetment arranged below the beach elevation, a secondary revetment arranged above the beach elevation, and an ecological sewage interception and grass-planting ditch arranged between the primary revetment and the secondary revetment. The ecological sewage interception and grass-planting ditch is in the shape of a U-shaped groove and is arranged on one side of the second foundation close to the primary revetment. Compared with other reinforcement methods, the ecological revetment of the present invention has the advantages of short construction time, large reinforcement depth, good reinforcement quality, and significant economic benefits. In particular, the ecological sewage interception and grass-planting ditch specially arranged in the present invention not only improves the functional effects of the revetment in retaining soil, filtering, and draining, but also improves the ecological and cultural landscape of the revetment.

The invention discloses an energy dissipation and shock absorption node applied to an assembled concrete frame structure, belonging to the field of building structure technology and structural shock absorption. The node is a hinged node, composed of a connecting steel plate, a pin shaft and a pad. The connecting steel plate can rotate with the pin shaft as the center of a circle to increase the deformation capacity of the node. Polytetrafluoroethylene is arranged between the pad and the steel plate to prevent the node from being damaged by friction. Energy dissipation and shock absorption devices are installed above and below the pin shaft. Metal rubber is the main shock absorption component. The metal rubber is placed in a bushing. An extrusion plate is arranged on the beam. The metal rubber can be squeezed by the extrusion plate and the friction between the metal rubber and the bushing can be used to consume part of the energy generated by the earthquake. The invention has a simple structure, and all parts and accessories can be prefabricated in a factory, which is easy to replace, economical and reasonable, has a good shock absorption protection effect, a high safety factor, good structural durability, and can be used for a long time.

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.

The invention belongs to the technical field of surrounding rock stability control, and particularly relates to a stress regulation and control roadway protection method for mining stopping line roadway driving pre-grouting reinforcement, which comprises the following steps of: driving a newly-dug roadway between a mining stopping line of a working face and a protected main roadway; multiple groups of grouting holes are constructed in the two sides of the newly-dug roadway; superfine cement paste is injected into the surrounding rocks on the two sides through the grouting holes, and a corresponding surrounding rock grouting reinforcement range is formed; and after the working face is pushed to the mining stopping line, a support removing channel is formed, and surrounding rocks on the top and the sides of the support removing channel are both located within the grouting reinforcement range. According to the method, the stopping line support removing channel and the main roadway protection coal pillar are reinforced at the same time, the bearing capacity of the coal pillar is enhanced, an effective supporting effect on an overlying rock stratum can be achieved, and mining-induced stress transfer caused by crushing of the coal pillar is avoided; on the other hand, the newly-dug roadway absorbs a considerable part of energy through self deformation, and the pressure relief effect is achieved. Through combination of pressure control and pressure relief, stress regulation and control are achieved, and then the main roadway is protected.

The present invention discloses a prefabricated foundation in a shield tunnel, including a prefabricated concrete foundation, characterized in that: the prefabricated concrete foundation is provided with a horizontally arranged foundation top surface and a foundation bottom surface, one side of which is a foundation arc surface arranged corresponding to the pipe segment, and the other side is a foundation vertical surface, the prefabricated concrete foundation is provided with a reserved bolt hole, the reserved bolt hole extends from the foundation top surface to the foundation arc surface, and a reserved hand hole is arranged on the foundation top surface near the reserved bolt hole; a caulking chamfer is arranged at the junction of the foundation top surface and the foundation arc surface, and a reserved steel bar matched with the pipe segment is arranged below the foundation bottom surface. On the one hand, the present invention avoids the previous process of planting a large number of steel bars on the pipe segment during the construction of the shield tunnel foundation, and reduces the damage to the pipe segment structure; on the other hand, it avoids the erection of a large number of templates for foundation construction, increases construction efficiency, and improves the prefabrication assembly rate of the shield tunnel; the structure is easy to install, the connection is firm, the construction is fast, and it is economical and reasonable.

The utility model provides a gate reverse supporting device with a pressure relief function. The gate reverse supporting device comprises a gate groove slide way and a gate reverse supporting piece. The gate reverse supporting piece comprises a sliding block, a sliding block box, a support, a limiting block, a compression type spring and a rotating piece. When the compression type spring is naturally not subjected to external force, the end of the sliding block extends out of the sliding block box, and in the working state, the sliding block is clamped in the downstream side position of the door groove sliding way. The limiting block is fixed to the support and located on the upstream side of the sliding block box, and the sliding block box is limited to rotate towards the upstream side around the rotating piece. The self-adaptive pressure relief device has the advantages of safety, reliability, economy, reasonability and self-adaptive operation, and when the water pressure on the downstream side is larger than the water pressure on the upstream side and reaches a design value, the gate overcomes the resistance of a spring of the supporting device to move towards the upstream side, so that the water pressure on the downstream side is automatically and timely relieved, and the self-adaptive pressure relief function is achieved through the pure mechanical principle.