275 results about "Slurry pipeline" patented technology

The invention discloses a slurry flow velocity measurement method, device and system for a slurry pump, and relates to the technical field of slurry flow velocity measurement, and the method comprises the steps: employing an ultrasonic transducer to transmit an ultrasonic signal to a slurry pipeline and receive a reflection signal, and obtaining ultrasonic propagation data; constructing a slurry flow velocity profile model according to the ultrasonic propagation data, and calculating slurry flow velocity and solid phase concentration distribution based on the slurry flow velocity profile model; and based on the slurry flow velocity and the solid-phase concentration distribution, rheological correction is conducted by combining the slurry flow state, and the actual slurry flow velocity of the slurry pump is obtained. According to the method, the non-Newtonian characteristic and the solid-phase migration effect of the slurry are considered in the measurement process, a rheological parameter dynamic correction mechanism based on the Reynolds number is established, and the measurement precision under the working conditions of high-sand-content and high-density slurry is improved compared with a traditional method.

The embodiment of the invention provides a pipeline blockage monitoring method and system for wet metallurgy slurry conveying, and belongs to the technical field of pressure measurement and pipeline blockage monitoring. The method comprises the following steps: collecting multi-point pressure signals along a slurry pipeline, and extracting pressure pulsation amplitudes and phase characteristics in a pump fundamental frequency and frequency multiplication range based on the multi-point pressure signals so as to establish an on-way pulsation transmission sequence; determining equivalent on-way impedance based on comparison between the on-way pulse transmission sequence and a reference working condition, and outputting an initial judgment result for representing a blockage risk; flow temperature and viscosity estimation parameters are introduced based on the initial judgment result to carry out rheological correction on an impedance threshold value, and a high-frequency phase difference is extracted at an elbow section to update a candidate blockage position; and based on the updated candidate blockage position and the corrected impedance threshold, fusing a phase stability index, and generating and outputting a current blockage evaluation result. According to the scheme, early-stage accurate positioning and stable judgment of slurry pipeline blockage can be achieved under complex working conditions.

The invention relates to a slurry pipeline ball pushing system and method. The pipeline cleaning device comprises a ball serving device, the ball serving device comprises a ball pushing device, a ventilation device and a cleaning device, the ball pushing device is used for pushing pipeline cleaning balls into a conveying pipeline, the ball pushing device and the conveying pipeline are in interference fit, the ventilation device pushes the pipeline cleaning balls to move in the conveying pipeline through compressed air, and the cleaning device is used for cleaning and blow-drying the pipeline cleaning balls; the closed ball changing device is detachably connected to the conveying pipeline; the detection device comprises a detection cavity, and when the pipeline cleaning balls enter the detection cavity, the detection device judges whether the pipeline cleaning balls are damaged or not in an air pressure detection mode; and the ball receiving device is used for receiving the pipeline cleaning balls, can reversely push the pipeline cleaning balls back to the ball serving device, and can push the pipeline cleaning balls into the closed ball changing device when detecting that the pipeline cleaning balls are damaged. The pipeline cleaning efficiency is improved, and the service life of the small pipeline cleaning balls is prolonged.

The invention relates to the technical field of tunnels and underground engineering, and discloses a large-section tunnel underpass surface and building structure ground surface micro-settlement control method. The method comprises the steps that ground surface settlement generated by tunnel excavation, ground surface settlement generated by group pipe superposition and ground surface settlement generated by soil body over-consolidation are calculated, and the sum of the three is the total ground surface settlement of a large-section tunnel underpass surface and a building structure; the ground surface settlement is controlled by adjusting the values of the pipe-roofing rigidity and the supporting rigidity; the ground surface settlement is controlled by adjusting the number of pipe roofs; ground surface settlement is controlled by adjusting the value of grouting pressure, a lubricating slurry pipeline system is arranged in a pipe, and nozzle systems are evenly arranged on the periphery of the pipe wall. And corresponding underground water control measures are made for different stratums according to ground surface settlement generated by soil body over-consolidation. The invention provides an effective method and means for controlling the underpass surface of the large-section tunnel and the ground surface micro-settlement of the building, and is beneficial to ensuring the tunnel construction, the safe operation of airplanes and high-speed rails and the stability of the building.

The invention discloses an extremely water-rich sandy gravel stratum localized grouting and water plugging test system and method, and relates to the technical field of grouting simulation systems.The test system comprises a sandy gravel stratum simulation module which comprises a plurality of vertically-arranged model boxes with different diameters, and the model boxes are filled with sandy gravel media; the localized grouting module comprises a slurry storage tank, a slurry conveying pipeline, a ball and a telescopic grouting sleeve which are connected in sequence; the constant-temperature water supply module is used for creating an extremely water-rich environment for the sandy gravel medium; the data acquisition module comprises a pressure sensor and a flow sensor; the data analysis module is electrically connected with the data acquisition module and comprises a pressure analysis module and a flow analysis module; effective simulation of stratums with different scales is realized through the sandy gravel stratum simulation system, and meanwhile, during numerical simulation, the slurry concentration is diluted due to the influence of a water-rich environment, and a slurry density field is introduced, so that the processes of slurry permeation and splitting in the grouting process are comprehensively analyzed.

The utility model provides secondary aluminum ash denitrification treatment equipment. The secondary aluminum ash denitrification treatment equipment comprises a grinding device, a slurry pipeline, a gas-liquid separator and a gas collecting pipeline, the slurry pipeline is provided with a slurry inlet end and a slurry outlet end, and the slurry inlet end and the slurry outlet end are both communicated with the grinding device; the gas-liquid separator is arranged on the slurry pipeline and is used for separating gas generated by hydrolysis reaction of the secondary aluminum ash and water; and the gas collecting pipeline is communicated with the gas-liquid separator and is used for collecting gas generated by hydrolysis reaction of the secondary aluminum ash and water. According to the method, wrapping layers on the surfaces of aluminum nitride particles are stripped through the grinding effect, the hydrolysis reaction is continuously and efficiently carried out, the particle size of slurry particles can gradually become smaller in the grinding process, rapid proceeding of the hydrolysis reaction is better facilitated, gas is collected into a gas collecting pipeline in time, the reaction can be carried out in the forward direction, and the reaction efficiency is improved. The decomposition rate of aluminum nitride in the secondary aluminum ash is greatly improved, and the reaction time is shortened.

The invention discloses a battery slurry detection device and method, and the device comprises an electromagnetic induction sensor which comprises at least two excitation coils reversely wound on the outer side of a slurry pipeline and at least one induction coil wound on the outer sides of the excitation coils; the electric signal sensor is connected with the induction coil and is used for acquiring an electric signal change value of the induction coil under the condition that the battery slurry flows through the electromagnetic induction sensor from the slurry pipeline; the processor is connected with the electric signal sensor and is used for detecting the content of the magnetic metal particles in the battery slurry according to the electric signal change value; and the power supply is connected with the electromagnetic induction sensor, the electric signal sensor and the processor. According to the method, the electromagnetic induction sensor is arranged on the outer side of the slurry pipeline, and when the battery slurry flows through the electromagnetic induction sensor, the content of the magnetic metal particles in the battery slurry can be obtained according to the electric signal change value.

The utility model relates to an active load adjusting bridge system for a cutter suction dredger. Comprising a bridge frame, the root of the bridge frame is hinged to a cutter suction dredger body, a mud pump assembly and a mud pipeline are installed in the middle of the bridge frame, and a reamer assembly is installed at the end of the bridge frame; a portal frame is installed at the position of a bow of the cutter suction dredger body, a pulley system is installed at the top of the portal frame, a lifting pulley is installed at the top of the end of the bridge frame, a lifting winch is further installed on the cutter suction dredger body, and a lifting steel cable collected and released by the lifting winch is wound on the pulley system and the lifting pulley. And a hydraulic load assembly for exerting an active pushing effect on the bridge frame is further mounted between the cutter suction dredger body and the bridge frame. According to the active load adjusting bridge system for the cutter suction dredger, active load control is applied in a hard soil excavation scene, so that the reamer assembly can effectively feed in a water bottom mud surface, smooth construction is achieved, and excavation construction efficiency is guaranteed.

The invention discloses an efficient dehydration treatment device for waste engineering slurry and a dehydration method of the efficient dehydration treatment device. Relates to the technical field of rapid dehydration of high-water-content waste slurry. The dehydration treatment device comprises a waste slurry pipeline conveying module, a precise dosing module, a multi-stage pipeline mixing and dissolving module and a geotextile tube bag dehydration module which are connected in sequence. Accurate dosing can be achieved according to the water content of the slurry in the slurry sedimentation tank, negative effects on the flocculation effect of the slurry due to too much or too little flocculants are avoided, use of flocculant materials is reduced, the material cost is greatly reduced, meanwhile, the flocculants are arranged, the cationic flocculant YAPAM is adopted as the flocculants, and the flocculation effect of the slurry sedimentation tank is improved. The flocculant has the advantages of small dosage, good flocculation effect, environmental protection and the like. In the flocculating settling process of the slurry, soil particles in the slurry can be rapidly gathered and precipitated through the effects of electric neutralization and adsorption bridging, and the formed floc is stable in structure, large in size and not prone to being broken.

The invention discloses a high-turbidity wastewater treatment system and method.The treatment system comprises a water inlet pipe, a control system, a mud storage tank, a stacked screw machine, a flocculation treatment assembly and a settling pond, the water inlet pipe is connected with the settling pond through the flocculation treatment assembly, and the settling pond is connected with the inlet end of the mud storage tank through a mud pipeline; the outlet end of the mud storage tank is connected with the stacked screw machine through a mud pipeline, the stacked screw machine is connected with the sedimentation tank through a water return pipe, the mud scraper is arranged on the sedimentation tank, and the control system is electrically connected with the mud scraper, the mud storage tank, the stacked screw machine and the flocculation treatment assembly. According to the invention, automatic treatment of high-turbidity raw water is realized, automatic dehydration of sludge and circular treatment of wastewater are realized, the work of manually cleaning sludge in a traditional simple three-grid sedimentation tank is avoided, the technical problems of large workload and unstable treated water outlet are avoided, and the environment and cleanliness of a construction site are greatly improved.

The invention discloses a method for installing a relay pump and discharging slurry in the shield tunneling process, and relates to the field of shield tunneling engineering.The method comprises the steps that when a slurry pipeline system is built, a branch slurry pipe is used at the installation position of the relay pump; after a shield pipe replacement area reaches a relay pump mounting position, a first branch pipe is connected with a slurry inlet of a relay pump to be mounted through a first connecting pipe, a second branch pipe is connected with a slurry outlet of the relay pump through a second connecting pipe, and the slurry pressure, the impeller rotating torque and the vibration strength are monitored according to the monitored slurry pressure, the impeller rotating torque and the vibration strength. Determining whether the relay pump fails or not; after it is determined that the relay pump breaks down, the main control switch is turned on, the first switch and / or the second switch are / is turned off, and the slurry main pipe is switched to conduct slurry discharging work. When the shield tunneling machine conducts tunneling construction, the additionally-arranged relay pump can be merged into a slurry pipeline system, non-stop slurry discharging of a shield is achieved through the relay pump, and the construction efficiency of the shield tunneling machine is improved.

The utility model discloses graphene slurry homogenizing equipment, which is characterized by comprising a distributor, a stirrer, a stirring device, a stirring device, a stirring device and a stirring device, and is characterized in that the distributor is provided with a feeding interface and at least two discharging interfaces; the homogenizing valve is at least composed of a valve body and a plurality of jet generators, an interaction containing cavity is formed in the valve body, the jet generators are arranged around the interaction containing cavity and fixedly connected with the valve body in a detachable mode, and the tail ends of the jet generators are communicated with the corresponding discharging connectors. The front end of the valve body is arranged to face the interaction containing cavity and enables the ejected slurry jet flow to be converged in the interaction containing cavity, and the valve body is provided with an injection channel and an injection channel communicated with the interaction containing cavity; and the heat exchanger is arranged on the slurry pipeline communicated with the ejection channel and is used for cooling the slurry flowing out of the ejection channel. The utility model provides graphene slurry homogenizing equipment which can enable fluid to impact at the pressure of not less than 250MPA and is relatively low in manufacturing cost.

The invention relates to a combined metering method and system for the slag discharge amount of a slurry shield tunneling machine. The method comprises the steps that the slurry change amount in a slurry tank before and after each segment of the slurry shield tunneling machine is tunneled is measured; the muck variation of the muck field in the whole tunneling process of the slurry shield tunneling machine is measured; comprehensively calculating the slag tapping quantity of the real square; calculating an actual check volume according to the specification of the slurry shield tunneling machine; the flow and density of the slurry pipeline in the whole tunneling process are measured in real time, and the real-square deslagging check quantity is calculated; and calculating a first deviation value between the real square check volume and the real square slag discharge quantity, calculating a second deviation value between the real square slag discharge check quantity and the real square slag discharge quantity, and checking the real square slag discharge quantity by judging the first deviation value and the second deviation value. According to the method, a plurality of data sources are integrated, the actual volume deslagging quantity generated in the tunneling process of each ring of duct piece of the slurry shield tunneling machine is calculated more accurately, the actual volume checking volume and the actual volume deslagging checking quantity are used for checking, and the reliability of a measurement result is improved.

The invention discloses a large-diameter slurry shield machine slurry pipeline pipe replacing device and method. The device comprises a pipe replacing trolley, a telescopic pipe device, a driving device, a rear matched trailer, a first pipeline support, a fixing frame and a new slurry pipe, and the pipe replacing trolley is connected with the rear matched trailer and can move back and forth in the length direction of the rear matched trailer; the telescopic pipe device is arranged on the rear matched trailer and supported by the first pipeline support, one end of the telescopic pipe device is connected with the pipe replacing trolley, and the other end of the telescopic pipe device is connected with the fixing frame. The driving device is arranged at the lower part of the pipe replacing trolley; during tunneling, the rear matched trailer drives the pipe replacing trolley to move forwards, the telescopic pipe device stretches out, the pipe replacing trolley moves backwards relative to the rear matched trailer, and when the pipe replacing trolley moves to the tail of the rear section trailer and reaches a pipe replacing distance, tunneling and slurry conveying are stopped, the pipe replacing trolley moves to the initial state, the telescopic pipe device retracts, and a new slurry pipe is replaced. Bend-free connection is achieved, and the pressure loss of a pipeline is small; the structure is simple and operation is convenient.

The invention discloses a slurry shield small-space multi-interval fixed-point slurry pipeline extension system and a construction method, and solves the problems that the existing tunnel construction curvature is small, the space of a starting well is insufficient, the slurry pipeline is difficult to extend under the condition that integral starting is needed, and the requirement that the slurry pipeline is located on the same side under multiple construction intervals is not met. The mud pipeline extending system comprises a mud pipeline extending device arranged at a wellhead of a starting well and a mud pipeline supporting device laid in a tunneling tunnel. The slurry pipeline extending device is arranged at the initial end of the slurry pipeline supporting device, and the slurry pipeline supporting device bears a slurry pipe to synchronously move along with the shield tunneling machine. The slurry pipeline supporting device can be matched with the slurry pipeline extending devices in the tunneling tunnel in multiple directions to complete multi-interval slurry pipeline extension with the position of the starting well as the center of a fixed point. The mud pipeline extending device is arranged at the starting well mouth, the total length of a trailer is reduced, and the overall starting requirement of the extremely small starting well is met by fully utilizing the tunnel space.

The utility model discloses a lithium carbonate washing device which comprises a box type conveying device, a lithium carbonate slurry pipeline, a lithium carbonate slurrying tank, a material transferring pump and a spiral screen centrifugal machine, the box type conveying device comprises a box type filtering belt, a plurality of carrier rollers and two reversing wheels; a plurality of deionized water nozzles are arranged above the box type conveying device; a plurality of vacuumizing devices are arranged in the box type conveying device; a lithium carbonate pulping tank discharging groove is formed in one end of the box type conveying device; a fan-shaped deionized water high-pressure nozzle is arranged at the upper part of the lithium carbonate pulping tank blanking groove, and the lower part is connected with a lithium carbonate pulping tank; and the lithium carbonate pulping tank is connected with the spiral screen centrifugal machine through the transfer pump. According to the lithium carbonate washing device, the novel box type filtering belt is adopted as a filtering and conveying tool, high-pressure washing and stripping are carried out on lithium carbonate for many times in the conveying process, the problems of soluble impurities and viscosity are solved, and the whole device is relatively simple in structure and more suitable for actual production.

The utility model discloses a thickener underflow pipe parallel structure which comprises two ore pulp pipelines which are connected in parallel through a pipe combining device, the two ore pulp pipelines are sequentially provided with an ore discharging opening, an underflow first door and an underflow second door from the front end to the rear end of the flowing direction of ore pulp, and the ore pulp pipelines, the pipe combining device and an underflow third door are arranged on the ore pulp pipelines. A pipe combining device inspection opening is formed in the pipe combining device; the two third underflow doors are respectively connected with an underflow 1 # pump and an underflow 2 # pump; and the underflow first door is in a normally open state. A pipeline in the outlet direction of the pipe combining device is provided with three underflow doors, and a pipeline behind the three underflow doors is connected with an underflow pump. The utility model aims to provide an underflow pipe parallel structure of a thickener, which is applied to underflow pipelines of the thickener, realizes parallel connection of inlet pipelines of double underflow pumps, and reduces thickener pressing accidents caused by pipeline blockage.

The invention discloses slurry balance shield circulation scale experimental equipment under a simulated large-diameter shield working condition. The slurry balance shield circulation scale experimental equipment comprises an experimental bin, a simulated cutterhead stirring system and a circulation system. On one hand, on the basis of slurry balance shield circulation formed by a simulation experiment, the safe migration speed of particles generated by a large-diameter shield and an ultra-large-diameter shield at different geological environment propulsion rates in a slurry pipeline can be determined, so that the shield is guided, the circulation stagnant discharge probability is reduced, and secondary abrasion of accumulated slag to a cutter is reduced; meanwhile, visualized observation is conducted on bottom accumulated slag of a cutterhead muddy water bin in different modes, quantitative calculation and evaluation are conducted on the slag accumulation proportion, and a supporting basis is found for further research on the contribution degree of bottom accumulated slag to peripheral cutter abrasion; and on the other hand, the experimental characteristics of the experimental parameter reduced scale restart state on the conditions such as diameters of particles generated by different geologies, progressive decrease or progressive increase modes of blocks and the like are studied, and continuous synchronization capability is provided for continuous classification of geological particles and block reduced scale experiments.

The invention provides an iron ore filling system. The iron ore filling system comprises a conveying module, a thickening module, a water supply metering module, a cement supply module, a stirring module and a control module. The conveying module is composed of a conveying pipeline, a valve and a spiral conveyor. The thickening module is composed of a deep cone thickener; the water supply metering module comprises a slurry making pump, an overflow water pipe, a slurry making water pipe and a flow meter; the cement supply module is composed of a cement bin and further comprises a tailing slurry pipeline. The stirring module comprises a stirring bin; the deep-cone thickener is additionally arranged and used for thickening tailing slurry, so that the concentration of underflow is increased, the concentration of filling slurry is improved, the quality of a filling body is guaranteed, the influence of mining on the surrounding environment is reduced, the safety of underground operation is improved, and precious mineral resources are recycled to the maximum extent; the problems of collapse and ground pressure caused by the goaf are solved.

The invention discloses an ore pulp conveying pipe network optimization method based on historical data and agent learning, and belongs to the technical field of slurry pipeline conveying. The optimization method comprises the following steps: constructing a mathematical model of the slurry conveying pipe network; constructing a pipe network optimization scheduling model; establishing a Markov decision process; a deep reinforcement learning optimization process; and constructing a target function as a performance index function of the optimization problem. According to the method, a replacement objective function is provided, and the water head and the water age of a pipe network node and the efficiency of a high-pressure diaphragm pump are considered. Compared with other technologies, an accurate dynamic model does not need to be built, excessive starting and stopping of the high-pressure diaphragm pump are avoided, and the service life of a hydraulic element is prolonged. And a feasible solution is provided for the optimization scheduling research of the slurry conveying pipe network.

The utility model relates to the technical field of foundation reinforcement in civil construction engineering, and discloses a building concrete mixing pile which comprises a grouting vehicle, the top of the grouting vehicle is fixedly connected with a power mechanism, the output end of the power mechanism is fixedly connected with a slurry conveying pipeline, the outer wall of the slurry conveying pipeline is fixedly connected with a mixing mechanism, and the mixing mechanism is fixedly connected with the grouting vehicle. A partition plate is fixedly connected to the inner wall of the grouting vehicle, a grouting mechanism is fixedly connected to the top of the partition plate, a controller is arranged outside the grouting vehicle, the stirring mechanism comprises a drill rod, the inner wall of the drill rod is fixedly connected to the outer wall of the slurry conveying pipeline, a first spiral blade is fixedly connected to the outer wall of the drill rod, and a second spiral blade is fixedly connected to the outer wall of the first spiral blade. And the bottom of the drill rod is detachably connected with a stirring head. According to the utility model, the construction quality and efficiency of the concrete mixing pile are ensured, the stable improvement of the foundation reinforcement effect is realized, meanwhile, the construction time and cost are reduced, and the device is suitable for wider geological conditions.

A method and system for recovering, processing, and transporting sand for well fracturing operations. The method and system (i) deliver the sand from a sand source location to a remote site of distribution or use via a sand slurry pipeline which also produces a high level of attrition for liberating clay from the sand, (ii) eliminate the need to use an attrition scrubber for removing the clay, and (iii) reduce fuel consumption and emissions, and provide greater safety, by eliminating the need to transport the sand using trucks which must be driven long distances over hazardous routes.

The invention discloses a circulating slurry online deslagging system for a desulfurization process, and relates to the technical field of liquid deslagging. According to the deslagging system, a filter screen is arranged at an inlet of a circulating slurry pipeline to block large-particle impurities; a deslagging shunting pipe with a built-in functional sieve plate, an air nozzle and a spoiler is arranged at an outlet of a circulating pump, and after circulating slurry is subjected to solid-liquid separation through the deslagging shunting pipe, liquid is conveyed to a desulfurization reactor and finally returns to a desulfurization system; and the solid is conveyed to the online slag removal device for further solid-liquid separation through vibration of the vibrator and scouring of the slurry, the separated slurry flows back to the desulfurization system, the waste slag is conveyed to the waste slag collection box, and finally online slag removal of the circulating slurry is completed.

The present application discloses a kind of slurry pipeline energy dissipation orifice plate, including flange assembly, wear-resistant piece, shell and winding gasket;Flange assembly includes two pieces of flange arranged axially symmetric, flange adopts neck butt welding convex surface type, neck is fixedly sealed with slurry pipeline, and the outer periphery of two flanges is connected by fastening connector;Shell and wear-resistant piece are both hollow annular structure, and the section of both is L type, and the middle annular structure with cavity is formed after being combined, and is clamped in the middle by two flanges, and the diameter of the cavity of two flanges is greater than the diameter of the cavity of middle annular structure;Shell has different thickness, aperture and chamfer, and can realize the close assembly with wear-resistant piece;The inner angle of shell is round angle;Winding gasket is circular, and is arranged on the connecting surface of flange and shell, wear-resistant piece;Also disclose corresponding method and system, through energy dissipation main road and energy dissipation bypass, the flexible selection of commonly used energy dissipation system and standby energy dissipation system can be guaranteed;Reduce blockage, improve the wear resistance and service life of system;Meet the stable operation of energy dissipation station under different working conditions.

The utility model relates to installation technical field especially based on pressure sensor's ice slurry cleaning effect real -time monitoring device, including having first cover and second cover, the first connecting column of connecting first cover and second cover, the first sleeve of being located in the outer wall of first connecting column, the first sliding slot inside containing of first sleeve, the limiting rod of being located in the inside of first sliding slot, the second sliding slot of being located in the outer wall of first connecting column, the limiting block of being located in the outer wall of limiting rod and can along the inside of second sliding slot slide, the first limiting plate of being located in one end of first connecting column, the first elastic member of being located between first cover and second cover, the device realizes ice slurry pipeline flange mouth's tool -free quick assembly and disassembly through limiting assembly and quick -release spare, utilizes elastic member and chute linkage to make limiting rod automatic clamping flange, air bag seal leak -proof, pressure probe is measured along with the installation, and the installation time is greatly shortened, is suitable for a variety of pipe diameter, and the ice slurry cleaning efficiency and safety are significantly improved.

The invention relates to the technical field of slurry pipeline transportation, in particular to a water circulation pulping device and method for long-distance slurry pipeline transportation, and the device comprises a pulping and head end pump station subsystem, a terminal dehydration and pump station subsystem, a plurality of intermediate pump station subsystems, a water return pipeline network, a valve group control system and a system control unit; according to the system, a water circulation closed-loop system is constructed, a valve group control system and a water return pipeline network cooperate, a traditional one-way slurry conveying pipeline is transformed into a two-way switchable circulation system, and a system control unit is assisted for intelligent decision making and scheduling; the terminal dehydrated water does not need to build a traditional water treatment facility for up-to-standard discharge, but returns to the head end through a long distance in a step-by-step reverse pumping or independent continuous conveying mode; the problems that in long-distance slurry pipeline conveying, water resources are consumed in a one-way mode, waste is serious, and the terminal water treatment cost is high are solved, internal closed-loop cyclic utilization of the water resources is achieved, and the water resources are saved.

The invention relates to the technical field of mineral geological exploration equipment, and discloses geological structure drilling equipment for mineral exploration, which comprises a drilling assembly, the drilling assembly comprises a drilling cylinder assembly, a core tool assembly is fixedly sleeved in the drilling cylinder assembly, and the bottom end of the drilling cylinder assembly is fixedly connected with a drill bit assembly. The drill barrel assembly comprises a straight-barrel drilling tool, four feeding ports are formed in the side face of the bottom end of the straight-barrel drilling tool, four slurry pipelines are fixedly connected to the inner side of the straight-barrel drilling tool, flow deflectors are fixedly connected to the bottom ends of the four slurry pipelines, the core tool assembly comprises a coring barrel, four sliding strips are arranged on the side face of the coring barrel, and the flow deflectors are fixedly connected to the bottom ends of the four slurry pipelines. The four sliding strips correspond to the four sliding rails, fixing pieces are fixedly connected to the two sides of the top end of the coring barrel, one ends of the two fixing pieces are fixedly connected to the side face of the connecting rod, and the problems that in the slurry injection process, slurry easily invades a rock core, consequently, mineralized fluid samples are distorted, and coring quality defects are caused are solved.

The utility model discloses a testing device for testing the adhesion amount of a shield synchronous grouting slurry pipeline. The testing device comprises a driving assembly, the slurry storage assembly comprises a slurry storage tank connected with the driving device through a pipeline, a piston arranged in the slurry storage tank and a piston rod arranged in the slurry storage tank in a penetrating mode, and one end of the piston rod is connected with the piston; under the action of the driving device, the piston does piston motion in the slurry storage tank body along the axial direction of the slurry storage tank body; the slurry storage cover is detachably connected with the slurry storage tank; a pressure relief hole is formed in the slurry storage cover; and the detection assembly is connected with the slurry storage cover. The device has the beneficial effects that the slurry adhesion amount can be evaluated, and the test device is simple in structure, simple in principle and convenient to operate.

The present invention relates to the field of tunnel and underground engineering technology, and discloses a method for controlling the surface micro-settlement of the underpass surface and structures of a large-section tunnel. The method includes: calculating the surface settlement caused by tunnel excavation, the surface settlement caused by the superposition of a group of pipes, and the surface settlement caused by the over-consolidation of the soil. The sum of the three is the total surface settlement of the underpass surface and structures of the large-section tunnel; controlling the surface settlement by adjusting the values ​​of the pipe curtain stiffness and the support stiffness; controlling the surface settlement by adjusting the number of pipe curtains; controlling the surface settlement by adjusting the value of the grouting pressure, and arranging a lubricating slurry pipeline system in the pipe and a nozzle system evenly arranged around the pipe wall; formulating corresponding groundwater control measures for different strata according to the surface settlement caused by the over-consolidation of the soil. The present application provides an effective method and means for controlling the surface micro-settlement of the underpass surface and structures of a large-section tunnel, which helps to ensure the safe operation of tunnel construction, airplanes and high-speed railways, and the stability of structures.

The invention discloses a slurry pipeline wall thickness detection and energy dissipation system which comprises a host, a probe module, a support, a temperature compensation sensor, an energy dissipation pore plate and a pressure-bearing shell. An energy dissipation pore plate through which slurry can pass is embedded in the circular hole channel of the pressure-bearing shell; a through mounting hole is formed in the pipe wall on one side of the pressure-bearing shell; the bracket is erected in the mounting hole, and the probe module is mounted on the bracket; the temperature compensation sensor is integrated inside or near the probe module; the host is connected with the probe module and the temperature compensation sensor in a wired or wireless mode, the host dynamically calculates the sound velocity according to the temperature interval by means of sound velocity temperature segmentation fitting, and meanwhile, the wall thickness of the energy dissipation pore plate is detected through electromagnetic coil impedance compensation temperature correction. The purpose of pipeline energy dissipation can be achieved, and the thickness of the energy dissipation pore plate can be detected in real time; the influence of temperature on sound velocity and electromagnetic characteristics is corrected in a wide temperature range, and the temperature adaptability and precision of wall thickness detection are improved.