127 results about "Slurry pipeline" patented technology

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 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.

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 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 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.

The utility model relates to the technical field of compound fertilizer production, in particular to a compound fertilizer slurry filtering device and a high-tower granulation device. The compound fertilizer slurry filtering device comprises a filter and a slag discharging device, the filter comprises a first shell, a feeding pipe and a discharging pipe are connected to the first shell, the filter is used for being connected to a slurry pipeline through the feeding pipe and the discharging pipe, a filtering piece is arranged in the first shell, and the slag discharging device is arranged in the filtering piece. The filtering piece is located between the feeding pipe and the discharging pipe so as to filter out filter residues in slurry; the residue discharging device comprises a second shell, a spiral blade and a driving assembly, one end of the spiral blade is located in the second shell, the other end of the spiral blade is located in the first shell, the driving assembly is used for driving the spiral blade to rotate so as to convey filter residues on the filtering part to the second shell, and the second shell is provided with a residue discharging opening used for discharging the filter residues. Impurities in the slurry can be filtered out by the filter, and the filtered impurities can be continuously discharged by the deslagging device; impurities in the filtered compound fertilizer slurry are reduced, and the spray head is not easy to block.

The application relates to a pressure-adjustable curtain grouting device. The pressure-adjustable curtain grouting device comprises a storage box for slurry stirring, a connecting structure, a slurry pipeline with a switch valve connected to the storage box, a pressure-adjusting pump connected to the slurry pipeline, a jetting pipeline for curtain grouting connected to the pressure-adjusting pump, the jetting pipeline comprising a first pipeline and a second pipeline, one end of the first pipeline being connected to the pressure-adjusting pump, the other end of the first pipeline being in communication with the second pipeline through a connecting structure for adding auxiliary materials into the jetting pipeline, an auxiliary material pipeline with a pump being arranged in communication with one side of the connecting structure, and an auxiliary material mixing box being in communication with the auxiliary material pipeline. The application can timely change the properties or concentration of the currently jetted slurry, timely eliminate the adverse effects of slurry spouting or large slurry consumption, and simultaneously carry out auxiliary material and slurry grouting only by mixing the auxiliary material, so that the construction efficiency is greatly improved.

The utility model relates to a pipeline cleaning push ball with spiral scraper, including cylinder, the cylinder surface fixedly arranged with cylinder spiral scraper, the cylinder front end fixedly arranged with spheroid end face, the spheroid end face surface fixedly arranged with spheroid end face spiral scraper, the application increases spiral scraper at spheroid end face, and rotation power advances better and faster to complete pipeline cleaning, and the cleaning degree is improved greatly, and effectively solve the slurry pipeline residual and push ball efficiency problem.

The utility model discloses an isolator for a hot ore pulp pipeline, relates to the technical field of conveying diaphragm pumps of the hot ore pulp pipeline, and aims to solve the problems that an existing isolator is prone to mechanical abrasion and poor in impact resistance due to the lack of elastic buffering. Wear-resistant sleeves are coaxially embedded in central assembly holes of the isolation sheets, a plurality of isolation sheets are arranged in parallel in the axial direction to form an isolation sheet group, flanges are arranged on the two axial sides of the isolation sheet group, the isolation sheet group and the flanges are arranged in a penetrating mode through screws and are matched with nuts to be locked into a whole, and flange cushions are bonded to the axial outer sides of the flanges through vulcanization. According to the utility model, the outer side of the flange is bonded with the flange cushion made of the fluororubber material through vulcanization, so that the impact force generated when the isolator reciprocates to the stop block along the pipeline guide rod can be buffered, the hard contact abrasion between the isolator and the stop block is reduced, and meanwhile, the contact abrasion between the isolator and guide equipment in the pipeline is reduced.

This application provides an automatic continuous measurement method for the flowability of filler materials, comprising the following steps: Step S1, connecting the continuous measurement equipment, including: a first branch and a second branch connected in parallel; a third branch simultaneously connected to the ends of the first and second branches; Step S2, powder preparation; Step S3, automatic batching and slurry preparation, including adjusting the pipeline status, the pipeline status including: slurry preparation mode; water addition mode; and slurry discharge mode; Step S4, leveling work using the automatic flowability measurement device; Step S5, automatic sampling using the automatic flowability measurement device; Step S6, automatic flowability measurement; Step S7, cleaning and resetting the test plate; Step S8, cleaning the pipeline and the continuous measurement equipment. The automatic continuous flowability measurement method involved in this application can achieve high-frequency and accurate monitoring of flowability under long-distance, high-temperature conditions, and its slurry pipeline design can significantly improve the efficiency of multi-ratio tests, meeting the needs of large-scale laboratory testing.

The invention provides a midline ore drawing and damming method for a tailing pond. The method comprises the steps that a downstream blocking dam and an initial dam are constructed, and the dam top is leveled; the transportation device is controlled to carry the swirler and the slurry pipeline to move on the dam crest along the central axis of the initial dam, meanwhile, tailing slurry is conveyed into the swirler through the slurry pipeline and classified through the swirler, the classified coarse sand is used for impacting and damming to form a secondary sub-dam, and fine sand is discharged into the tailing pond; and the dam crest is piled up in the mode that the central axis is not changed, after the dam crest is leveled, the transportation device is controlled to reciprocate along the central axis of the secondary sub-dam, and the operation is repeated to construct the multi-stage sub-dam. According to the midline ore drawing and damming method for the tailings pond, traditional fixed-point impact damming is changed into movable impact damming, so that the impact range is wider, impact sediment distribution is more uniform, the ore drawing efficiency is greatly improved, the ore drawing difficulty is reduced, the number of needed excavators is small, and the cost can be greatly reduced.

The application relates to the technical field of garbage incineration treatment, in particular to a slurry pipeline line structure and a flue gas treatment system applying the same. The slurry pipeline line structure comprises a first slurry pipeline structure, which comprises a main pipeline and a U-shaped pipeline arranged upwardly and protruding; the top of the U-shaped pipeline is higher than the main pipeline, two pipeline ports of the U-shaped pipeline downwardly protruding are connected with two pipeline interfaces on one side of the main pipeline, a loop is formed, and at least one branch pipeline connected with an atomizer is arranged on the main pipeline. The slurry pipeline line structure and the flue gas treatment system applying the same improve the stability of atomizer operation and solve the technical problem of slurry breakage of the atomizer.

The utility model relates to a flue gas desulfurization technical field, it is a kind of coal powder boiler desulfurization device using PTA inorganic sludge, it includes including sludge pretreatment unit, sludge treatment unit, desulfurization slurry preparation tank, desulfurization tower, boiler, dust catcher and chimney, softening pool left side feed end fixed communication has a plurality of sewage inlet pipeline, softening pool discharge end and sedimentation tank feed end fixed communication has sedimentation tank feed pipeline;Sludge storage tank discharge end and between desulfurization slurry preparation tank fixed communication has slurry pipeline;Boiler exhaust end and dust catcher communication dust inlet pipeline;Dust catcher outlet and desulfurization tower lower part communication has dust after flue gas pipeline;Desulfurization slurry preparation tank discharge end and desulfurization tower upper part liquid inlet end between fixed communication has desulfurization slurry pipeline.The utility model is reasonable and compact in structure, convenient to use, its use PTA inorganic sludge has realized the desulfurization of boiler flue gas, and processing efficiency is high, and operating cost is low, with environmental protection, labour saving, simple, efficient characteristics.

The utility model discloses a device for accurately measuring the density of a desulfurizing absorption tower, and relates to the field of power equipment. The device comprises a vertical pipe communicated with a slurry conveying pipeline, the vertical pipe is communicated with an inclined pipe inclining upwards, a control valve and a top cover are arranged at the two ends of the inclined pipe respectively, a densimeter and the top cover are fixedly installed, and a probe of the densimeter extends into the inclined pipe; the upper end and the lower end of the outer side wall of the inclined pipe are communicated with a water inlet pipe and a water outlet pipe respectively, the water inlet pipe and the water outlet pipe are communicated with a water inlet valve and a water outlet pulse valve respectively, and the water outlet pipe is further communicated with an air inlet valve. The inclined tube cleaning device has the beneficial effects that various cleaning modes are applied to the interior of the inclined tube after the inclined tube is closed, so that the cleaning effect on the inclined tube is improved, the problem of slurry accumulation is solved, and the measurement accuracy of the densimeter is ensured.

The present application relates to the technical field of shield machine, especially a device for extending tunnel pipeline of slurry machine, comprising a shield trolley support structure frame, a transverse guide rail is installed inside the shield trolley support structure frame, a travelling trolley is movably installed on the transverse guide rail, and a slurry conveying pipeline is connected to the shield trolley support structure frame through the travelling trolley. The device for extending tunnel pipeline of slurry machine utilizes the zigzag and movable characteristics of the cooperation between the steel pipe and the pipe clamp, connects multiple steel pipes together through the pipe clamp, and arranges the steel pipes on a travelling beam through the travelling trolley, which is similar to a bending ruler. The steel pipe is bent in a V shape when the slurry pipe is extended, so as to realize the extension and retraction of the slurry pipeline. The side-hung type pressurized material crushing mechanism is arranged at the connecting end of the pipe clamp, which can not only crush the sand and stone blocks in the slurry in the pipeline, but also increase the conveying efficiency of the crushing end through the auxiliary pressurizing system, so as to improve the internal material guiding and crushing effect.

The production device comprises a first reaction zone, a second reaction zone, a third reaction zone, a fourth reaction zone, a fifth reaction zone and a sixth reaction zone which are sequentially arranged in the flowing direction of reaction liquid and are communicated with one another, and a first slurry return pipeline is arranged between the second reaction zone and the sixth reaction zone; and a second slurry return pipeline is arranged between the third reaction zone and the fifth reaction zone. According to the invention, slurry in the sixth reaction zone is returned to the second reaction zone through two reflux pipelines to carry out well-crystallized crystal nucleuses, and carried SO4 < 2-> consumes calcium ions and is adsorbed on the crystal nucleuses, so that crystal growth is facilitated; the slurry in the fifth reaction zone returns to the third reaction zone and is mixed with the added sulfur-phosphorus mixed acid to dilute the concentration of SO4 < 2->, and when the slurry is further reacted with the phosphoric ore slurry, the condition of oversaturation is avoided.

This invention belongs to the field of physical simulation and monitoring technology for oil and gas field fracturing, and relates to a multifunctional testing device and method for foamed cement slurry. The device includes a testing mechanism connected to a slurry preparation mechanism via a high-pressure slurry pipeline. The testing mechanism includes a testing vessel, an inner cylinder, a piston, and a pressure measurement and control component. The inner cylinder is located inside the testing vessel, and the piston is slidably connected to the inner wall of the inner cylinder. The piston divides the inner cylinder into an upper pressurization chamber and a lower testing chamber. The upper pressurization chamber is used to contain pressurized fluid, and the lower testing chamber is used to contain foamed cement slurry. The pressure measurement and control component is connected to the top of the testing vessel. This invention achieves high-pressure closed-loop slurry preparation through a magnetic drive component, and achieves pressurized transfer and multifunctional testing through the cooperation of a floating piston, a back pressure valve, and a precision pressure pump. It effectively solves the problems of existing technologies, such as the disconnect between slurry preparation and testing conditions, the single function of the testing device and the limited temperature and pressure simulation range, and the insufficient testing accuracy caused by the testing method not being adapted to the characteristics of foamed cement slurry.

The utility model discloses a slurry conveying device for eliminating bubbles in a slurry feeding pipeline. The slurry conveying device comprises a pre-papermaking slurry pump, the slurry feeding pipeline, an exhaust valve, a slurry feeding flow valve and a slurry feeding pump, the sizing pipeline is used for conveying sizing agent and comprises a first sizing channel, a U-shaped channel and a second sizing channel; the first sizing channel, the U-shaped channel and the second sizing channel are sequentially connected into a whole; an outlet of the pre-papermaking pulp pump is connected with an inlet of the first sizing channel; the exhaust valve and the sizing flow valve are arranged on the second sizing channel; an outlet of the second sizing channel is connected with an inlet of the sizing pump; when the sizing agent passes through the U-shaped channel, bubbles in the sizing agent gradually float on the surface of the sizing agent and are discharged through the exhaust valve on the second sizing channel, so that the bubbles in the sizing agent are eliminated, and no bubbles exist. According to the slurry conveying device, bubbles mixed in the slurry feeding pipeline can be reduced, the stability of the slurry feeding flow is enhanced, the paper breaking frequency is reduced, the production efficiency is improved, and slurry waste and environmental pollution are reduced.

The utility model relates to the technical field of PVC (polyvinyl chloride) slurry filtration, in particular to a PVC suspension polymerization discharging, filtering and cleaning device, which comprises a PVC polymerization kettle, a slurry filter, a slurry intermediate treatment device, a centrifugal machine, a mother liquor tank and a nitrogen buffer tank, a second slurry pipeline is communicated between the slurry filter and the slurry intermediate treatment device, a third slurry pipeline is communicated between the slurry intermediate treatment device and the centrifugal machine, the centrifugal machine is communicated with a filter cake conveying device, and a mother liquor pipeline is communicated between the centrifugal machine and the mother liquor tank; a first backwashing pipeline is communicated between the mother liquor tank and the slurry filter; and a nitrogen purging pipeline is communicated between the nitrogen buffer tank and the slurry filter. The PVC slurry filtering device is reasonable and compact in structure and convenient to use, the PVC slurry filtering efficiency is improved, and the safety productivity of enterprises is also improved.

The application belongs to the field of hydraulic devices, and discloses a mud mixing system, a control method thereof, a storage medium and a controller. The mud mixing system comprises a hydraulic circuit, a throttling flow path and a switching device. A motor and an oil pump are arranged on the hydraulic circuit. The throttling flow path is provided with a throttle valve. The switching device switches the outlet of the motor to be communicated with the throttling flow path or the inlet of the oil pump. After the pressure collision phenomenon occurs, the oil pump is controlled to stop oil supply, the oil liquid driven by the motor is guided to the throttling flow path through the switching device, the damage of the oil pump caused by the oil liquid is avoided, the output of the oil liquid of the motor is gradually adjusted through the throttle valve, the motor is gradually stopped until it is stopped, the damage of the oil pump caused by the sudden closing of the oil pump is avoided, and the excessive output of the mud is avoided to cause the excessive pressure in the mud pipeline and damage the pipeline.

An improved desulfurization slurry pump inlet filtering device comprises a filtering device, a lime slurry pump and a slurry pipeline. The filtering device comprises a turbulent flow cover which is of a hollow flat-top cone structure, the top face of the turbulent flow cover is communicated with a discharge pipe, and a double-end flange pipe is arranged on the bottom face of the turbulent flow cover and composed of an inlet pipe, a second flange and a third flange, the end face, close to the turbulence cover, of the second flange extends to form a secondary turbulence structure in the axis direction of the inlet pipe. The turbulent flow cover of the flat-top cone structure is provided, two layers of turbulent flow are achieved, gathered calcium hydroxide can be evenly dispersed, the filter screen is arranged at the tail end of the turbulent flow cover to emphatically filter limestone raw material impurities, the limestone impurities can be filtered, and therefore the service life of the whole system is remarkably prolonged.

This invention belongs to the field of tunnel boring machine (TBM) technology, specifically relating to a variable-model TBM assembly method. The method includes the following steps: S1. When the TBM is used as an earth pressure balance (EPB) TBM, the front shield flange is connected to the middle shield, the sealing door on stiffener plate one is closed, and a sealed chamber is formed between stiffener plate one, the face plate, and the front shield partition; a screw conveyor is installed on the screw conveyor base for transporting excavated soil; S2. If the EPB TBM is to be converted to a slurry balance TBM, the screw conveyor is first removed, and a slurry partition is installed between the front shield flange and the middle shield. At this time, the sealing door on stiffener plate one is opened, and a sealed cavity is formed between stiffener plate three, the slurry partition, and the front shield partition, serving as an air cushion chamber for the slurry shield; a slurry discharge pipe base is installed on the screw conveyor base and connected to a slurry pipeline for slurry discharge. This invention allows for convenient conversion between EPB and slurry balance TBMs without the need for a newly manufactured front shield.

The utility model relates to the field of slurry pipeline transportation and filtering, disclose a self -cleaning slurry filter. The filter includes casing and sets up filter screen in the casing, the filter screen will casing inner chamber divide into opposite two side areas, casing corresponds filter screen both sides respectively set up feed valve and discharge valve, casing bottom sets up the residue valve, and the washing water inlet valve is set up in the casing top, the emptying blow -off valve group is set up to one side of the casing near feed valve, and the residue blow -off valve group is set up to one side of the casing near discharge valve, and the pressure gauge is set up to one side of the casing top near feed valve. The emptying blow -off valve group and residue blow -off valve group are along the casing surface multiple point planar distribution, cooperate washing water inlet valve and residue valve to realize the in -situ cleaning of filter screen and the discharge of the sediment in the casing. The utility model has the advantages of simple structure, easy maintenance, reduces the risk of introducing metal particles by internal rotating mechanism, and is suitable for the filtration of high cleanliness scenes such as lithium battery slurry.

The invention discloses a pipe extension process of a slurry shield tunneling machine, which adopts a pipe extension device including a tee pipe, an outer sleeve pipe, an extension pipe, a sealing element, a driving device and a blocking ball. After adopting the structure and process of the pipe extension device, the slurry does not need to be transported, the mechanism is simple, the economy is good, the operation and maintenance are convenient, the slurry pipeline in the tunnel is blocked by the blocking ball, the leakage of the slurry can be effectively avoided, the slurry pollution of the tunnel is reduced, the labor intensity and time cost of manual cleaning are reduced; in addition, the damage of the blocking ball in the movement process is avoided by using the characteristics of the extension sleeve pipe, compared with other ball type pipe extension devices, the mechanism is simple, the sealing is reliable, the sub-components are convenient to maintain and other significant advantages, and the defects of other ball type pipe extension devices such as sealing damage, valve ball damage, valve cavity easy to be blocked and high cost are overcome.

The utility model relates to the technical field of mud separation device, concretely to a mud water shield machine big particle size stone block separation equipment, including mud pipeline, jar and be used for connecting mud pipeline and jar's mud communication pipe, mud pipeline left and right two ends are opened with the inlet and outlet of slurry respectively, the second observation window and third observation window are opened respectively on mud pipeline, the stone block collection cover is arranged on the jar, the first observation window is opened on the jar, the stone block filter mechanism and separation mechanism are arranged on mud pipeline, the separation mechanism position corresponds with mud communication pipe, through the hydraulic drive and gear transmission design of extension part in separation mechanism, can prevent the stone block jam, can realize the efficient separation effect similar centrifugal separation, the cooperation of separation mechanism and stone block filter mechanism, adapt to the construction demand under different geological conditions, significantly improve the adaptability of equipment to complex working condition.

The application discloses a kind of slurry shield small space multi-interval fixed-point slurry pipeline extension system and construction method, solve the existing tunnel construction curvature, insufficient space and need to start well under the condition of whole start-up, slurry pipeline extension difficult, not adapt to multiple construction interval, slurry pipeline is in the same side requirement problem.The slurry pipeline extension system of the application, including the slurry pipeline extension device being arranged at the wellhead of start well and the slurry pipeline support device being laid in the tunnel being excavated;Slurry pipeline extension device is arranged at the initial end of slurry pipeline support device, and slurry pipeline support device bears slurry pipe and moves synchronously with shield machine;Slurry pipeline support device can be adapted to slurry pipeline extension device in multiple directions in the tunnel being excavated respectively, to complete multi-interval slurry pipeline extension with start well position as fixed point center.The application reduces the total length of trailer by arranging slurry pipeline extension device at the wellhead of start well, and meets the whole start-up requirement of minimum start well by fully utilizing tunnel space.

The utility model relates to the technical field of construction equipment, in particular to a wall gypsum slurry smearing device which comprises a main slurry pipeline, a plurality of sets of main slurry nozzles are installed on one side of the main slurry pipeline, and a slurry supply connector is installed on the other side of the main slurry pipeline. A set of connecting bottom plates are installed in the middle of the bottom of the main slurry pipeline, hydraulic rods are installed on the two sides of the bottom end of each connecting bottom plate, extension assemblies are installed on the two sides of the bottom of the main slurry pipeline, the movable ends of the hydraulic rods are connected with the side edges of the extension assemblies, and auxiliary slurry pipelines are installed at the bottoms of the extension assemblies. The extending assembly is matched with the main slurry pipeline to form a new smearing operation range, gypsum slurry can be quickly smeared on a wall, the uniform thickness is kept after the gypsum slurry is smeared on the wall, the trowelling procedure is reduced, and the problem that the follow-up trowelling operation is affected by slurry drying in a manual smearing mode is solved.

This invention provides a slurry pipeline pigging device, comprising a cleaning mechanism, a feeding mechanism, a slurry feeding mechanism, a slurry delivery mechanism, and a discharge mechanism. The cleaning mechanism includes a cleaning chamber and a pigging ball. The feeding mechanism, the slurry delivery mechanism, and the discharge mechanism are all connected to the cleaning chamber. The feeding mechanism is connected to the slurry delivery mechanism. The pigging ball can slide into the cleaning chamber and seal and isolate the cleaning chamber from the slurry delivery mechanism. The feeding mechanism is used to introduce gas and / or liquid into the cleaning chamber to clean the pigging ball inside the cleaning chamber. The gas and liquid inside the cleaning chamber are discharged through the discharge mechanism. Alternatively, the feeding mechanism can introduce gas and / or liquid to push the pigging ball into the slurry delivery mechanism. The slurry feeding mechanism is used to introduce slurry into the slurry delivery mechanism, and the slurry delivery mechanism is used to convey the slurry. The pigging ball is conveyed within the slurry delivery mechanism by means of gas / liquid / slurry to clean the slurry delivery mechanism.

This invention discloses a wear-resistant and corrosion-resistant composite structure for desulfurization slurry pipelines, including a desulfurization slurry pipeline body. The desulfurization slurry pipeline body has an internal wear-resistant composite mechanism and an external protective and early warning mechanism. In this invention, the wear-resistant composite mechanism provides long-term protection and structural reinforcement for the pipeline's inner wall. A steel-lined rubber composite pipe is fixed to the inner wall of the desulfurization slurry pipeline body. Utilizing the complementary properties of steel strength and rubber elasticity, the carbon steel skeleton bears the system pressure, while the inner rubber lining, with its high elasticity and chemical stability, converts the cutting wear of solid particles in the slurry into elastic deformation absorption, significantly improving wear resistance and corrosion resistance. The reinforcing skeleton embedded in the inner wall enhances the bonding strength between the lining layer and the pipe body, effectively preventing peeling.