40 results about "Slurry transport" patented technology

The invention relates to the field of open caisson construction equipment, in particular to a vertical shaft tunneling robot and a press-in type open caisson soil borrowing device.The vertical shaft tunneling robot comprises a rack and a vertical shaft tunneling mechanism, a vertical shaft tunneling front-back driving mechanism is arranged between the rack and the vertical shaft tunneling mechanism, and the vertical shaft tunneling front-back driving mechanism comprises a front-back driving cylinder; a vertical shaft tunneling mechanism is arranged on the machine frame, a slurry conveying mechanism is arranged on the vertical shaft tunneling mechanism, a sliding ring underwater protection mechanism is arranged between an excavation mounting seat and an excavation rotating seat, and a machine frame rotating mechanism and a rotating locking mechanism are arranged on the machine frame. The press-in type open caisson soil taking device comprises an open caisson, and an open caisson pressing-down driving mechanism is arranged on the outer side of the open caisson. The vertical shaft tunneling robot is arranged in the open caisson, the annular fixing base is connected with the inner wall of the open caisson in an up-down sliding mode through the guide wheels and the guide sliding ways, the open caisson downward-pressing driving mechanism comprises a center-penetrating hydraulic cylinder, a supporting frame, a steel strand and an uplift pile, and the vertical shaft tunneling robot is novel in structure, large in excavation range, high in flexibility, good in stability, high in working efficiency and low in cost.

The utility model relates to the technical field of flue gas treatment, in particular to an adjustable rotational flow desulfurization tower, which comprises a tower body, a gas inlet, a gas outlet, a gas inlet pipe, a gas outlet pipe, a gas inlet pipe and a gas outlet pipe, the rotational flow generating layer is arranged above the air inlet; the spraying layer is arranged above the rotational flow generating layer; the demisting layer is arranged below the air outlet; and the slurry layer is arranged at the bottom of the tower body and conveys slurry to the spraying layer through a circulating pipeline. According to the adjustable rotational flow desulfurizing tower provided by the utility model, the flue gas can form rotational flow through the multi-stage rotational flow blade group, and the formed rotational flow is longitudinally reinforced through the arc-shaped plate, so that the rotational flow can overcome the internal resistance of the desulfurizing tower and quickly run to the spraying layer to react with slurry, and the desulfurizing efficiency and the desulfurizing effect are effectively improved.

The utility model provides a large-displacement light slurry conveying reciprocating pump set, which belongs to the technical field of reciprocating pumps and comprises a profile steel base, a filling system, a slurry conveying pump, a transmission shaft, a driving motor, a plunger lubricating system and a power end lubricating system. The filling system is located on the outer side of the profile steel base, the slurry conveying pump, the driving motor, the plunger lubricating system and the power end lubricating system are all installed on the profile steel base, the filling system is connected with the slurry conveying pump through a pipeline, and the driving motor is connected with an input shaft of the slurry conveying pump through a transmission shaft. According to the large-displacement light slurry conveying reciprocating pump set, the slurry conveying pump, the driving motor, the plunger lubricating system and the power end lubricating system are all integrated on the profile steel base, and the driving motor is connected with the input shaft of the slurry conveying pump through the transmission shaft, so that the structure between the slurry conveying pump and the driving motor is more compact; and the size of the slurry conveying pump set is effectively reduced.

This invention discloses a method for stabilizing waste slurry from tunnel boring machines (TBMs), belonging to the field of construction waste disposal. The method adjusts the pH of the pre-dehydrated flocculated slurry to 7.5-8.5, and simultaneously adds konjac glucomannan, trisodium citrate, and low-grade diatomaceous earth under stirring. These three components react simultaneously in a one-pot process under alkaline conditions to form a rigid-flexible interpenetrating network structure, resulting in a stabilized slurry that does not leak free water under transport vibration conditions. This invention utilizes the synergistic effect of the cross-linking regulation of konjac glucomannan and trisodium citrate, and the rigid support of low-grade diatomaceous earth, effectively solving the problem of water seepage and leakage caused by vibration during slurry transportation. This invention features a simple process, rapid reaction, and uses all naturally sourced materials with good environmental compatibility. The treated slurry can be directly utilized as a resource, meeting the requirements of green construction.

The utility model discloses a slurry conveying assembly and a coal yard fire preventing and extinguishing device, the slurry conveying assembly comprises a slurry conveying pipe, one end of the slurry conveying pipe is suitable for being connected with a slurry spraying outlet of a slurry spraying pump, and the other end of the slurry conveying pipe is suitable for being connected with a spraying gun or a grouting pipe; a high-pressure gas inlet is formed in the pipe wall of one end of the slurry conveying pipe; the high-pressure gas control valve is arranged at the high-pressure gas inlet and used for controlling opening and closing of the high-pressure gas inlet, and the high-pressure gas inlet is suitable for being communicated with a high-pressure gas source through the high-pressure gas control valve. According to the slurry conveying assembly disclosed by the embodiment of the utility model, the slurry conveying pipe can be purged by utilizing high-pressure gas after flushing is finished, so that residual water in the slurry conveying pipe can be discharged in time, and further blockage caused by freezing in the slurry conveying pipe is avoided.

The invention relates to a device and method for increasing the concentration of slurry in a pipeline, the device comprises an outer pipeline, an inner pipeline, a flange connecting assembly and a monitoring system, a plurality of overflow holes are uniformly distributed in the pipe wall of the outer pipeline, and the overflow holes are communicated with a residual water treatment device through a diversion pipeline; the inner pipeline is coaxially nested in the outer pipeline; the flange connecting assemblies are symmetrically arranged at the two ends of the device and used for achieving sealed connection of the inner pipeline and the slurry conveying pipeline. The monitoring system is integrated on a slurry conveying pipeline at the inlet end and the outlet end of the device, comprises an electromagnetic flowmeter and a pressure transmitter, and is used for collecting slurry flow velocity and pipeline pressure data in real time; the invention has the advantages that: through a double-layer pipeline structure (an outer pipeline and a filter cloth inner pipeline) and dynamic pressure regulation and control, synchronous dehydration in the conveying process is realized, meanwhile, the concentration in the slurry conveying process is synchronously increased, the problems of large occupied area and low efficiency of the traditional concentration tank are solved, and the concentration tank has remarkable economic and environment-friendly benefits.

A system and method for comprehensive and efficient utilization of metal mine tailings by classification, the system includes a coarse sand commercial utilization subsystem, a wastewater recycling subsystem and a fine-grained slurry filling subsystem. The method is as follows: the tailings slurry of the ore dressing plant is directly introduced into a hydrocyclone for solid-liquid separation, the coarse sand is dehydrated and naturally air-dried to form construction sand for sale, the fine-grained slurry is discharged after two-stage centrifugation, the wastewater is treated and supplied to the ore dressing plant, the concentrated fine-grained slurry formed by centrifugation is introduced into a buffer tank or a fine-grained slurry transport vehicle for temporary storage, the fine-grained slurry temporarily stored in the buffer tank or the fine-grained slurry transport vehicle is introduced into a first slurry mixer, and at the same time, the binder in the binder silo is also introduced into the first slurry mixer through a double-tube screw feeder, and the filling slurry is prepared in the first slurry mixer; the preliminarily prepared filling slurry is introduced into the second slurry mixer again, and the second slurry mixer deeply stirs the filling slurry, and finally the filling slurry is transported to the underground mining site through a slurry pump.

The utility model relates to the technical field of sludge solidification treatment, in particular to a simple and convenient movable sludge solidification treatment machine which comprises a slurry spraying pipeline, a vibrating screen, a spiral stirring rod, a lifting supporting seat, a filter pressing plate, wheels, a stepping motor and a brushless motor. A slurry conveying pipeline is connected to the right side of the injection pipe, a vibrating screen is arranged below the injection pipe and connected with the box body in a hinged mode, a stepping motor is fixedly assembled on the vibrating screen, a spiral stirring rod is installed on the right inner side of a middle box chamber of the curing machine, and a brushless motor arranged on the right outer side of the middle box chamber provides power for the spiral stirring rod. Filter pressing plates are arranged on the two sides of the inner side of the lower box chamber. According to the simple and convenient movable sludge solidification processor, sludge vibration screening, stirring and filter pressing integration can be achieved, gravel obtained after vibration screening can be recycled, the design structure is simple and convenient, wheels are installed at the bottom, and the sludge solidification processor can be conveniently transported to a sludge treatment site.

The present invention discloses an ice slurry cold storage device with an integrated ice storage and ice melting pipeline structure, which belongs to the technical field of cold storage equipment. It includes a tank body for storing energy storage medium; a column, including an inner casing and an outer casing, the upper and lower ends of the column are respectively provided with an upper ice melting water distributor and a lower ice melting water distributor, and an ice melting return pipe; connected to the outer casing; an ice storage inlet pipe, connected to the inner casing; the inner casing is an ice storage channel and is connected to the inner pipeline, and the space between the inner casing and the outer casing is an ice melting channel and is connected to the outer pipeline. Through the present invention, when the inner casing and the inner pipeline are frozen during the process of transporting ice slurry, the frozen position can be immediately melted by introducing ice melting medium into the outer pipeline, ensuring the smooth flow of the entire ice slurry transport pipeline, thereby improving the working efficiency of the entire ice storage device.

The invention discloses a dredger simulation method and system based on an instantaneous excavation yield and a transient flow theory, and belongs to the technical field of dredging, the dredger simulation method comprises an excavation simulation model which is constructed based on three-dimensional real terrain parameters and excavation parameters and simulates a dredged soil excavation process by using the real-time excavation parameters; the excavation parameters comprise the cutter suction dredger reamer outline, the transverse moving speed, the buried depth, the forward moving distance, the original terrain and the earthwork collapse after the excavation reamer is moved; the coupling module is used for comparing the real-time excavating and dredging earthwork volume output by the excavating simulation model with the maximum conveying and dredging earthwork volume of the conveying equipment, and selecting a smaller value between the two as a coupling parameter of the conveying simulation model; the conveying simulation model is constructed on the basis of conveying equipment parameters, and the coupling parameters output by the coupling module are used as input to simulate the slurry conveying process; the conveying equipment comprises a dredge pump, a suction pipeline connected to the inlet end of the dredge pump and a sludge discharge pipeline connected to the outlet end of the dredge pump.

The utility model discloses a system for automatically adjusting slurry concentration, which comprises a stirring barrel, an on-line concentration detection device mounted on the inner bottom surface of the stirring barrel, an overflow port arranged at the top end of the side wall of the stirring barrel, a filter plate fixedly connected in the overflow port, a filtrate storage box arranged on the outer side of the overflow port, and a filtrate pipeline communicated with the output end of the filtrate storage box, a water outlet of the filtrate pipeline is communicated with an inlet of the water tank, an outlet of the water tank is communicated with an inlet of the make-up pump, and a water make-up pipeline is communicated between an outlet of the make-up pump and an inlet of the input end of the filtrate storage box. The online concentration monitoring device has the advantages that when the slurry concentration deviates from a set value in the slurry conveying process, online concentration monitoring is achieved by arranging the online concentration detection device in the stirring barrel, water drainage or water supplement is achieved through the filtrate storage box on the side portion, real-time adjustment of the water-solid ratio in the stirring barrel is achieved, and the stirring efficiency is improved. The hysteresis of adjusting the water-solid ratio at the source is eliminated, the instability of the slurry concentration is effectively reduced, and the slurry preparation cost is reduced.

The utility model relates to the technical field of sludge treatment, in particular to a slurry concentration pipeline which comprises a main pipeline, a first concentration device, a second concentration device and a positive and negative pressure generating device, the first concentration device comprises a first water pumping pipe, partial section of the first water pumping pipe is arranged in the main pipeline, and a through hole is formed in the section, arranged in the main pipeline, of the first water pumping pipe; the section, arranged in the main pipeline, of the first water pumping pipe is sleeved with a first geotextile pipe bag so that the first geotextile pipe bag can cover the through hole. The second concentration device comprises a concentration branch pipe and a second water pumping pipe, the input end of the concentration branch pipe is communicated with the main pipeline, and the communication position is located on the side, close to a pipeline outlet, of the first geotextile pipe bag. According to the slurry concentration pipeline, the slurry is dewatered while being conveyed, the slurry dewatering time is effectively shortened, the dewatering efficiency is improved, and the technical problems that an existing slurry conveying mode is high in conveying cost, large in environmental influence, long in slurry dewatering time and low in efficiency are solved.

The utility model relates to the field of open caisson construction equipment, in particular to a vertical shaft tunneling robot and a press-in type open caisson soil borrowing device.The vertical shaft tunneling robot comprises a rack and a vertical shaft tunneling mechanism, a vertical shaft tunneling front-back driving mechanism is arranged between the rack and the vertical shaft tunneling mechanism, and the vertical shaft tunneling front-back driving mechanism comprises a front-back driving cylinder; a vertical shaft tunneling mechanism is arranged on the machine frame, a slurry conveying mechanism is arranged on the vertical shaft tunneling mechanism, a sliding ring underwater protection mechanism is arranged between an excavation mounting seat and an excavation rotating seat, and a machine frame rotating mechanism and a rotating locking mechanism are arranged on the machine frame. The press-in type open caisson soil taking device comprises an open caisson, and an open caisson pressing-down driving mechanism is arranged on the outer side of the open caisson. The vertical shaft tunneling robot is arranged in the open caisson, the annular fixing base is connected with the inner wall of the open caisson in an up-and-down sliding mode through the guide wheels and the guide sliding ways, the open caisson downward-pressing driving mechanism comprises a center-penetrating hydraulic cylinder, a supporting frame, a steel strand and an uplift pile, and the vertical shaft tunneling robot is large in excavation range, high in flexibility, good in stability, high in working efficiency and low in cost.

The polishing pad includes a textile layer, a compressible layer, and a water-impermeable layer disposed between the textile layer and the compressible layer, which reduces slurry usage by improving slurry transport and does not require diamond conditioning to maintain slurry transport.

The utility model relates to the technical field of soft soil foundation construction, in particular to a cement mixing pile capable of preventing grout overflowing. The device comprises an inner drill rod, an outer drill rod arranged on the inner drill rod in a sleeving mode, a drill bit fixedly connected to the lower end of the inner drill rod and rotary excavating blades fixedly connected to the outer side wall of the outer drill rod, the inner drill rod and the outer drill rod are arranged on a driving box, and a driving mechanism for driving the inner drill rod and the outer drill rod to rotate relatively is arranged in the driving box; a slurry storage cavity is formed between the inner drill rod and the outer drill rod, a slurry spraying outlet is formed between the lower end of the outer drill rod and the drill bit, and a slurry conveying pipe communicated with the slurry storage cavity is arranged between the inner drill rod and the outer drill rod. The device can reduce the disturbance of the stirring blades to the soil and avoid the phenomenon of slurry overflowing.

The utility model provides a shaping slurry preparing and pouring system. The system comprises a primary mud pool, a mud adjusting pool and a shaping mud mixing pool which are sequentially connected in a pipeline conveying mode. A first stirring device is arranged in the slurry adjusting tank, and a second stirring device is arranged in the shaping slurry mixing tank; a plurality of shaping slurry mixing pools are arranged in parallel, and a first valve and a second valve are respectively arranged on pipelines for connecting the inlet end and the outlet end of each shaping slurry mixing pool. By means of the system, construction site muck can be utilized in a resource mode on site, collaborative absorption of the site muck is achieved, the slurry transportation cost is saved, and continuous and efficient pouring can be achieved.

The utility model discloses a drilling fluid slurry unloading and transferring device, and relates to the technical field of drilling fluid slurry. The drilling fluid slurry unloading and transferring device comprises a rack, a slurry inlet and slag pump, a slurry screening machine, a circulation slurry storage box and a slurry outlet and slag pump are arranged on the rack, an outlet of the slurry inlet and slag pump is communicated with a slurry inlet of the slurry screening machine, and a solid phase outlet of the slurry screening machine is formed in one side of the rack. A slurry outlet of the slurry screening machine is communicated with an inner cavity of a circulation slurry storage box arranged below the slurry screening machine, and the inner cavity of the circulation slurry storage box is further communicated with an inlet of a slurry discharging and slag slurry pump. The device can replace an existing passive unloading mode that a tank body inclines and depends on self-weight flow guiding of the slurry, the unloading efficiency of the slurry transport vehicle is remarkably improved, meanwhile, the unloaded drilling fluid slurry can be screened, solid-phase particles exceeding the standard are screened out, the performance of the drilling fluid slurry is improved, and the service life of the drilling fluid transport vehicle is prolonged. The influence on subsequent drilling operation caused by performance degradation of the drilling fluid slurry is avoided.

The utility model discloses a muck transporting and distributing device suitable for a multi-mode shield tunneling machine, and belongs to the technical field of tunnel construction. The device comprises a spiral conveyor, an unearthing gate, a dry residue conveying mechanism and a slurry conveying mechanism, the dry slag conveying mechanism comprises a dry slag conveying assembly, a first material distributing machine, a second material distributing machine and a transport vehicle. The dry slag conveying assembly is arranged above the first material distributor; each of the first material distributor and the second material distributor comprises two material distribution outlets; the second material distributor is arranged below each material distribution outlet of the first material distributor, and the transport vehicle is arranged below each material distribution outlet of the second material distributor; the slurry conveying mechanism comprises screening equipment used for separating dry residues and sewage, and the screening equipment discharges the separated dry residues to the dry residue conveying assembly. When modes of the shield tunneling machine are switched, the shield tunneling machine adapts to muck transportation of different stratums, and tunneling efficiency and safety are improved.

This utility model discloses a slurry transport pipeline, including a conveying pipe with a blockage-clearing mechanism installed on it. The blockage-clearing mechanism includes a main pipe, a filter screen, a drain pipe, and a collection tank. A branch pipe is connected to the main pipe, and an end cap is installed at the end of the branch pipe. A vibration mechanism is installed on the end cap. The filter screen is installed inside the branch pipe, with one end of the filter screen located inside the main pipe. The drain pipe is installed on the end cap and connected to the branch pipe, with a drain valve installed on the drain pipe. The collection tank is located below the branch pipe, with one end of the drain pipe located inside the collection tank. The end cap is connected to the branch pipe by several bolts, facilitating the removal of the end cap for filter screen replacement. The vibration mechanism includes a rotating shaft rotatably connected to the end cap. This utility model adds a blockage-clearing mechanism to filter out large particles in the slurry that have not been crushed, thereby reducing the probability of slurry pipeline blockage, ensuring stable slurry transport, and minimizing the impact on nonwoven fabric production.

The invention discloses an absorption tower slurry supply system which comprises a slurry supply unit, the slurry supply unit comprises a slurry supply pump, a flowmeter and bypass units which are sequentially arranged, the bypass units correspond to slurry circulating pumps one by one, the bypass units are connected to the slurry circulating pumps at outlets of the slurry supply pumps, and slurry is directly conveyed to an absorption tower through the slurry circulating pumps. The device has the beneficial effects that the outlet of the limestone slurry supply pump is connected with the emergency reserved port bypassing to the inlet of the slurry circulating pump, so that limestone slurry is conveyed to the spraying layer through the slurry circulating pump to directly react with sulfur dioxide in flue gas, and the situation that the original limestone slurry is firstly mixed with absorption tower slurry and then is conveyed to the spraying layer through the slurry circulating pump to cause sulfur dioxide in the flue gas is avoided; the concentration of limestone slurry in slurry conveyed by the slurry circulating pump is increased, the mixing time is shortened, and the limestone slurry directly participates in reaction, so that the concentration of sulfur dioxide at a chimney outlet is reduced, and the desulfurization efficiency is improved.

A slurry filtering device includes a housing including a slurry accommodation portion inside to which a slurry is supplied, a plurality of filters received respectively in a plurality of divided spaces of the slurry accommodation portion and configured to filter at least some of particles in the slurry, and a slurry transport line connecting the plurality of divided spaces to supply the slurry to each divided space in a sequential order.

This invention provides a pressurized sealing device and method for slurry transport pipelines. The sealing device includes a repair pipe, two sets of drive systems disposed at both ends of the repair pipe, and two sets of pipe-clamping and fixing mechanisms. The repair pipe is fitted over the leak area of ​​the damaged pipe, and at least two sets of sealing strips are provided between the repair pipe and the damaged pipe. The leak area of ​​the damaged pipe to be sealed is located between at least two sets of sealing strips. The drive system includes multiple sets of second hydraulic cylinders, each set of second hydraulic cylinders having one end hinged to a pipe-clamping frame and the other end hinged to a corresponding force-bearing seat on the repair pipe. The two sets of pipe-clamping and fixing mechanisms provide positioning gripping points on both sides of the leak point in the slurry transport pipeline, providing force points for the second hydraulic cylinders. The repair pipe covers the damaged slurry transport pipeline, and the sealing operation of the pipeline transport system is completed under the drive of the second hydraulic cylinders. This invention can complete pressurized sealing operations of slurry transport pipelines, preventing pipeline blockage and ensuring the safety of the slurry transport system.

The invention relates to the technical field of slurry treatment, and discloses a slurry treatment device, which comprises: a reaction mechanism for a chemical reaction process of slurry; the transfer mechanism is positioned on one side of the reaction mechanism and is used for transporting the slurry subjected to the chemical reaction; the screening mechanism is located on one side of the transfer mechanism and used for slurry treatment and solid-liquid separation, the screening mechanism comprises a stirring assembly and a separation assembly, the stirring assembly is installed at the bottom of the transfer mechanism and used for slurry stirring, and the separation assembly is installed at the bottom of the stirring assembly and used for solid-liquid separation of slurry. By arranging the primary crushing mechanism comprising the treatment roller, large-particle impurities in slurry can be effectively ground and crushed, the problem of equipment blockage caused by large particles in the subsequent solid-liquid separation link is avoided from the source, the stability and the treatment capacity of continuous operation of the system are remarkably improved, and the service life of the system is prolonged. The defect that frequent shutdown cleaning is needed due to blockage in a traditional mechanical dehydration method is overcome.

The invention relates to the technical field of rock-fill damming grouting, in particular to an intelligent movable grouting device for composite slurry rock-fill damming and a construction method.The intelligent movable grouting device comprises a movable trolley, a driving mechanism, a controller and a slurry storage cylinder are arranged on the movable trolley, and a slurry conveying main pipe is connected to the slurry storage cylinder; the grout storage cylinder is used for spraying grout to the rockfill material through the grout conveying main pipe, the driving mechanism is used for driving the moving trolley to move, the controller is connected with the driving mechanism, and the controller adjusts driving parameters of the driving mechanism according to the grouting amount needed by a rolling area and the grouting speed of the grout conveying main pipe. And the grouting amount is not smaller than the grouting amount required by the rolling area after the mobile vehicle travels once in the rolling area. The intelligent movable grouting device is convenient to move, can be flexibly arranged, and is suitable for grouting requirements of different areas and construction conditions of narrow space in the filling process of a high rock-fill dam or a soft rock-fill dam.

A polishing pad comprising a textile layer, a compressible layer, and a water impermeable layer disposed between the textile layer and the compressible layer. The polishing pad reduces slurry use by improving slurry transport and requires no diamond conditioning to maintain slurry transport.

The invention discloses a filling pump starting drainage cavity system and a drainage anti-blocking process, and relates to the technical field of mine slurry filling, the drainage cavity system is used for disposing coal-based solid waste, recycling pressed coal resources and controlling ground surface settlement of a goaf, and the drainage cavity system is installed between a filling pump and a filling pipeline. The drainage cavity system comprises a stirring mechanism, a monitoring system and a water injection mechanism, the system can dynamically dilute high-solid-content slurry, solve the problem of particle deposition, reduce the pipe blocking rate and achieve three-stage control of full opening, slow closing and stopping, the water injection rate is accurately adjusted through the synergistic effect of a main valve and an adjusting valve, the slurry concentration is stably transited from low to high, and the water injection efficiency is improved. The anti-blocking process is combined with a drainage cavity system to achieve dynamic stabilization of the flowing state of slurry in a pipeline, the method is composed of the three stages of low-concentration slurry pre-pumping, slurry concentration gradual transition and high-concentration stable conveying, it is ensured that conveyed high-solid-content slurry is in a stable flowing state, and pipe blocking accidents in the starting process of a filling pump are avoided.

The embodiment of the present application provides a kind of pipeline blockage monitoring method and system for hydrometallurgy slurry conveying, belong to pressure measurement and pipeline blockage monitoring technical field.The method comprises: collecting multi-point pressure signal along slurry pipeline, extracting pressure pulsation amplitude and phase feature in pump fundamental frequency and frequency multiplication range based on the multi-point pressure signal, to establish along pulsation transmission sequence;Determine equivalent along impedance based on the along pulsation transmission sequence and reference condition contrast, and output the initial judgment result for representing blockage risk;Flow temperature and viscosity estimation parameter are introduced based on the initial judgment result, and impedance threshold value is rheologically revised, and high-frequency phase difference is extracted in elbow section to update candidate blockage position;Based on the updated candidate blockage position and the impedance threshold value after revision, phase stability index is fused, and current blockage evaluation result is generated and output.The present application scheme can realize early accurate positioning and stable discrimination of slurry pipeline blockage under complex conditions.

The present invention relates to the technical field of tunnel construction equipment, and specifically to an automatic grouting equipment for tunnel construction, comprising: a slurry storage tank; a support base; a cement pump, wherein the cement pump is arranged at the outside of the slurry storage tank and is fixedly connected to the support base, the input end of the cement pump is connected to the slurry storage tank, and the output end is connected to a slurry delivery pipe; a positioning grouting unit, wherein the positioning grouting unit is arranged at the outside of the slurry storage tank, connected to the support base, and connected to the other end of the slurry delivery pipe; an automatic stirring unit, wherein the automatic stirring unit is connected to the slurry storage tank and to the positioning grouting unit; wherein the positioning grouting unit comprises: a multi-directional synchronous adjustment component, a movable grouting component and a synchronous energy supply component, and by providing the positioning grouting unit, the grouting position can be synchronously adjusted horizontally, vertically and at an angle, thereby completing the positioning grouting, and can also realize automatic stirring of the concrete located inside the slurry storage tank during the grouting process, thereby realizing continuous grouting and improving the processing efficiency.

The present invention relates to a thermoplastic material, wherein the thermoplastic material comprises an ethylene-based polymer material, wherein the ethylene-based polymer material has a Vicat softening temperature of ≥50°C measured according to ISO 306 (2013), method A50, and a weight loss of ≤0.50% by weight measured on a compression molded sheet according to ISO 15527 (2010), Annex B, using a silica sand / water slurry with a mass ratio of 3:2, a test duration of 7 hours. The present invention also relates to a slurry transport pipe comprising the thermoplastic material as its inner layer or consisting of the thermoplastic material.

The present invention provides a pipeline scale removal device, comprising: a plurality of descaling disc groups connected in series, wherein each descaling disc group includes multiple descaling discs, each of which has a curved surface on one side and a flat surface on the other. The thickness of the curved surface of the descaling disc gradually decreases from the center to the edge. All descaling discs in each descaling disc group are arranged in series in the same direction and on the same axis, with intervals, so that the curved surfaces are all on the side facing the ore slurry. Furthermore, the outer diameters of all descaling discs gradually decrease along the direction of ore slurry transport. The device advances by relying on the thrust of the ore slurry itself, requiring no additional power, and can easily overcome obstacles, preventing clogging of the pipeline scale removal device. The scale layer is gradually removed from the inner layer to the outer layer with equal thickness, ensuring smooth cleaning. Reserved gaps provide multiple flow channels for the removed dirt, ensuring smooth cleaning.