401 results about "Mud pump" patented technology

The invention belongs to the technical field of slurry pumping and discharging, and particularly relates to height-adjustable slurry pumping and discharging equipment which comprises two sets of inclined supporting rods. Each group of inclined supporting rods are arranged in a splayed shape; a mounting ring is fixedly connected to the top end of the inclined supporting rod; a cross rod is arranged on an inner ring between the two groups of mounting rings; the outer ring of the middle part of the cross rod is fixedly connected with a hanging lug; a chain block is hung on the hanging lug; a slurry pump is hung at the bottom of a lifting hook of the chain block; when the liquid level of mud in a mud pit fluctuates, an operator can adjust the lifting of the mud pump only by operating the chain block, so that the tedious procedures of binding, hoisting out, lowering and the like of a steel wire rope in a traditional mode are avoided, the non-operation waiting time is greatly shortened, and the construction continuity is ensured; meanwhile, the height of the slurry pump is adjusted in time, damage to the slurry pump is greatly avoided, the whole adjusting process is simple, an operator can independently complete the adjusting process, dependence on cooperation of multiple persons is reduced, and labor cost is saved.

The invention provides a drilling control method and system for a self-propelled complex drill bit, and the method comprises the steps: setting a rated cutting torque through obtaining roadbed soil, hydraulic power and geometric parameters, calculating the total propulsion resistance based on the roadbed strength to control the axial jacking force, and carrying out the safety verification of the drag force; calculating a critical flow velocity according to the characteristics of the drilling slag to adjust the discharge capacity and negative pressure of the slurry pump so as to determine an operation boundary; drilling and deslagging are cooperatively executed under the boundary, and the trajectory is corrected by combining a PID algorithm and the propulsion speed is optimized based on the theoretical mechanical drilling speed. According to the method, the technical problems that existing trenchless construction depends on experience to set parameters, scientific quantitative calculation of the slag discharge flow speed and the safety drag force is lacked, and then pipe cable blockage and drainage pipe damage are caused can be solved, and full-system cooperative efficient control of drilling, propelling, slag discharge and guiding based on multi-field coupling calculation is achieved.

The utility model relates to the technical field of mud pump trucks, in particular to mud pump truck pipeline anti-blocking equipment which comprises a truck body, the truck body comprises a base, a pump body is fixedly installed on the surface of the base, a feeding pipe is fixedly connected to the surface of the pump body, and a discharging pipe is fixedly connected to the surface of the pump body. Through the arrangement of the filter plate, large impurity particles in slurry can be intercepted, the large impurity particles can be filtered out, the situation that the large impurity particles enter the pump body and the inner side of the conveying pipeline, and consequently the pump body and the conveying pipeline are blocked can be avoided, the conveying effect of the pump body can be guaranteed, and the service life of the pump body is prolonged. And meanwhile, the screw rod rotates and drives the insertion rod to move, insertion and separation of the insertion rod and the insertion groove can be achieved, limiting and limiting releasing of the mounting rod are facilitated, then cleaning or replacement of the filter plate is facilitated, and therefore the filtering effect of the filter plate on large impurity particles can be guaranteed.

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 automatic hard well shut-in method and system integrated with a petroleum drilling machine control system, and relates to the technical field of petroleum drilling machine well control. According to the method, the drilling working condition is monitored in real time, an overflow trigger index is calculated, the overflow risk in a shaft is judged, and a hard well shut-in process is started after an alarm is given; the position of a hook and the position of a drill rod joint are monitored in real time, a winch safety stop index is calculated, whether the operation state of the winch is safe or not is judged, the hook is automatically moved to the optimal stop point, and the winch is braked; top drive and slurry pump linkage control is started, a top drive and slurry pump linkage control coefficient is calculated, whether the static working condition before well control is met or not is judged, and equipment is stopped or a strategy is executed accordingly; monitoring the action of the blowout preventer and the state of the hydraulic system, calculating the consistency index of the action of the blowout preventer, judging whether the action of the blowout preventer meets the well shut-in requirement or not, and giving a strategy if the action does not meet the well shut-in requirement; real-time judgment of the overflow risk and automatic hard shut-in of the well can be achieved, the safety of the well mouth is guaranteed, and the risk of manual misoperation is reduced.

The invention is suitable for the technical field of engineering investigation, and provides an engineering investigation digital drilling machine based on the Internet of Things sensing technology and a big data service system.The digital drilling machine comprises a drill tower, a hydraulic standard penetration piece, a slurry pump, an integrated operation table, a double-clamping structure, a power head, monitoring equipment and other assemblies; linkage and data interaction of all the assemblies are achieved through a controller special for engineering machinery. The big data service system covers three aspects of a data architecture, a core algorithm and a security mechanism, the data architecture comprises an edge computing layer and a cloud analysis layer, the core algorithm comprises a drilling efficiency prediction model and equipment health degree evaluation, and the security mechanism comprises data encryption and access control. The big data service system provides intelligent decision support and service for engineering investigation, and the engineering investigation efficiency and quality are effectively improved.

The invention provides a self-adaptive control method and system for equipment operation parameters, and relates to the technical field of self-adaptive control of oil field operation parameters, and the method comprises the steps: obtaining multi-source data such as structure displacement, process state parameters, component analysis data and fluid performance parameters to evaluate a current process stable state, and outputting a state quantized value; then, in combination with the component analysis data, the state quantized value and the current value of the fluid performance parameter, a pre-trained decision model is used for analysis and decision making, and an expected target value which the fluid performance parameter should reach is generated; and finally, the expected value serves as a leading target, feedback of process state parameters is sensed in real time, operation parameters of key process execution mechanisms such as a drilling machine and a slurry pump are dynamically adjusted through a self-adaptive control algorithm, conversion from passive response to active optimization in the drilling process can be achieved, and the well wall stability and the drilling efficiency are effectively improved.

Herein are described methods and systems for characterizing noise and noise level in pressure measurements in a downhole pressure testing operation in formation testing while drilling. The pressure measurements are acquired using a formation testing tool disposed on a drill string. The methods include drilling a borehole, extending the one or more probes into an inner surface of the borehole, performing a pressure testing operation with a first mud pump rate, wherein the pressure testing operation comprises a drawdown period and a build up period, decreasing the first mud pump rate to a second mud pump rate while measuring pressure during the build up period, decreasing the second mud pump rate to a third mud pump rate while measuring pressure during the build up period, and calculating a noise associated with pore pressure measurements during the first pressure testing operation.

The embodiment of the invention provides a riverway dredging flow control method and system, and relates to the technical field of riverway dredging flow control, the method comprises the steps that operation data of a riverway dredging system are collected, and the operation data comprise a flow meter feedback value, mud pump operation parameters, pipeline pressure, valve opening and mud concentration; based on the operation data, the abnormal types of the river dredging system are recognized, and the abnormal types comprise flowmeter measurement errors, valve mechanical response hysteresis and slurry rheological characteristic anomalies; and adjusting a control strategy according to the exception type. The river dredging operation efficiency, the equipment safety and the environmental protection level can be improved.

The invention discloses a method for treating gangue through paste-slurry combined filling under the condition of a cut-off type roof, which specifically comprises the following steps: obtaining the yield and particle size distribution of mine gangue according to a product balance table for guiding a paste filling system, an underground coal gangue separation system and a slurry filling system; filling spacing is dynamically adjusted according to the lithology of the roof, the filling spacing is determined by controlling the number of intervals of the supports, it is guaranteed that a paste roof-contacted supporting roof rock stratum collapses, and a stable slurry filling space is constructed; gangue in a ground gangue bin enters a slurry filling system and automatically flows to a slurry pump to be pumped to the position above a working face along a filling pipeline, vertical drilling is constructed in an underground goaf to the position above a slurry filling space, and the filling pipeline is arranged to complete filling; the large-scale disposal of all gangues above and below the mine is completed according to continuous and sequential circulation of mine excavation. By means of paste-slurry filling combined operation, all underground filling treatment of underground gangue solid waste of the million-ton level is achieved, support to a top plate is reinforced through paste-slurry combination, and mine pressure is effectively weakened.

The invention provides a dredger sensor health state diagnosis method and system, and belongs to the technical field of ship equipment health management.The dredger sensor health state diagnosis method comprises the following steps that N recent continuous sampling points are selected, a data mean value and a standard deviation in a sliding window are calculated, and a threshold confidence interval is defined; if the current sampling value continuously falls into the threshold confidence interval for M times; data such as mud pump power, mud density, pressure and flow velocity are collected in real time through the data collection unit, the mean value and the standard deviation are analyzed and calculated through the signal preprocessing unit, and then the fault type is judged in combination with the dynamic threshold value adaptation module, the soil texture classification strategy module and the redundancy check module. Alarm signals such as disconnection, water inflow and border crossing are triggered according to priorities through an alarm output unit, and the problems of mismatching of static thresholds, poor soil adaptability, high false alarm rate and the like in the prior art are solved by utilizing dynamic threshold adjustment, multi-dimensional data fusion and redundancy check mechanisms.

The invention relates to an automatic dredging control method based on target parameters of a trailing suction dredger, which comprises the following steps of: setting target parameters of dredging and loading operation to be controlled under a dredging and loading working condition, and constructing a dredger according to a construction path planned by a system; the system jointly controls dredging operation equipment such as a steering engine, a propeller, a rake arm winch, an active rake head, a wave compensator, a high-pressure flushing pump and an underwater / cabin mud pump to achieve dredging and driving integrated dredging and cabin loading operation, and in the dredging and cabin loading process, the controlled equipment is always kept to stably operate at a set target parameter value. Therefore, efficient automatic dredging operation of the trailing suction hopper dredger is achieved. According to the method, the target parameters of the dredging and loading operation are set, the controlled equipment is always kept to stably operate at the set target parameter values in the dredging and loading process, and efficient automatic dredging operation of the trailing suction hopper dredger is achieved.

The invention relates to an automatic dredging control method for economic yield of a trailing suction dredger, which comprises the following steps of: under a dredging loading working condition, acquiring the ratio of concentration and flow velocity to oil consumption of a loading pipeline according to historical data of concentration and flow velocity and oil consumption of the loading pipeline in construction; the concentration and flow rate target values of the loading pipeline with the most economic benefits under the working condition are determined in a mode of taking the maximum ratio, and the ship navigational speed, the rake head angle, the rake head cutting depth, the wave compensator pressure, the high-pressure flushing pressure and the dredge pump rotating speed are automatically controlled according to the target values; and meanwhile, the steering engine and the propeller are jointly controlled to realize automatic dredging and loading operation of the dredger according to a planned path, so that the dredging yield is stabilized near the economic yield, and the efficient automatic dredging and loading operation of the trailing suction dredger with the best economic benefit is realized. According to the method, it can be guaranteed that the optimal ratio of economic output to cost input can be obtained in automatic dredging and loading operation conducted under the economic output, and therefore economic benefits are greatly improved.

The utility model relates to a novel clean rainwater recycling pool which comprises a sedimentation pool communicated with initial rainwater, a mud pump is arranged at the bottom of the sedimentation pool, and an outlet pipeline of the mud pump is communicated with the outside; the oil separation tank is separated from the sedimentation tank through a partition plate which is longitudinally arranged, a first electric valve and a submersible sewage pump are arranged at the bottom of the side wall of the oil separation tank, and an outlet pipeline of the submersible sewage pump is communicated with the outside; the clean water tank is a closed tank and communicated with the oil separation tank through a first electric valve, a submersible pump is arranged at the bottom of the clean water tank, and an outlet pipeline of the submersible pump is communicated with the outside. Sediment in initial rainwater can be settled, greasy dirt in the initial rainwater floats upwards to the surface layer, lower clear liquid in the rainwater can be discharged into the clear water pool, finally clean rainwater is stored, and the clean rainwater is prevented from being polluted by dust due to the closed design. The sedimentation tank, the oil separation tank and the clean water tank are of an integrated structure, the construction cost of the rainwater tank is saved, meanwhile, the structure is tighter, and the occupied space is small.

The invention relates to the technical field of mud liquid level monitoring, and discloses a drilling mud liquid level monitoring and alarming device which comprises a drilling mud pool, the drilling mud pool is used for an oil and gas field drilling fluid circulating system, the drilling mud pool receives and deposits drilling fluid returned from a wellhead, and the drilling fluid is recycled by a mud pump after being treated; the monitoring module comprises a bearing frame, a liquid level monitoring assembly, a fluctuation response assembly and a cleaning control assembly; and the cleaning control assembly is associated with the fluctuation response assembly and the liquid level monitoring assembly and is configured to drive the cleaning control assembly to work so as to clean the surface of the receiving end of the photoelectric liquid level sensor when the fluctuation response assembly acts in response to fluctuation. Through the fluctuation response assembly and the cleaning control assembly, automatic cleaning of the liquid level monitoring assembly is achieved, and the problem that monitoring data are inaccurate or even invalid due to the fact that a traditional sensor is prone to contamination in a severe mud environment is effectively solved.

The invention relates to the field of well drilling, in particular to a cleaning method and cleaning slurry.The cleaning method comprises the steps that cleaning slurries with different viscosities are pumped in through a slurry pump to conduct circulating cleaning on a borehole, and the cleaning process of each circulating period sequentially comprises the three stages of thick slurry cleaning, thin slurry cleaning and thick slurry cleaning, the thick slurry is clean slurry with the Markov funnel viscosity of 300-800, and the thin slurry is clean slurry with the Markov funnel viscosity of 80-200 s. The cleaning slurry takes well slurry as base slurry and comprises sulfonated lignite, polypropylene fibers, high-softening-point emulsified asphalt, 800-mesh superfine calcium, 1200-mesh superfine calcium, polyanionic cellulose and 2500-mesh superfine calcium. The process is simple, the flushing and carrying effects on rock debris and falling blocks of different sizes are good, and the consumption of cleaning liquid is small.

The utility model relates to the technical field of sawing machines, one embodiment of the utility model provides a slurry pump piston rod sawing machine with an auxiliary blanking device, the slurry pump piston rod sawing machine comprises a workbench, and further comprises a machining frame, a blanking box, a limiting frame, a material pushing assembly, a clamp, a blanking frame and a beating mechanism, the machining frame is arranged on the upper side of the workbench, and a blanking opening is formed in the machining frame; a discharging opening is formed in the lower side of the machining frame, a discharging box is arranged on the lower side of the machining frame and communicates with the discharging opening, the limiting frame is installed on the upper side of the machining frame and covers the outer side of the discharging opening, and a pushing assembly is arranged on the upper side of the machining frame and used for pushing materials into the discharging opening. By means of the technical scheme, the sawing machine for machining the piston rod of the slurry pump is used for solving the technical problems that when a sawing machine for machining the piston rod of the slurry pump in the prior art conducts blanking on cut materials, workers usually need to conduct blanking on the materials manually, the blanking speed is low, the working efficiency is poor, and certain potential safety hazards exist.

The invention belongs to the technical field of nuclear power, and particularly relates to a geological drilling rig water brake adjusting system and method. According to the system, the slurry pump spraying water pump is connected with the drilling machine water brake, so that the slurry pump spraying water pump has two purposes, the water brake system of the drilling machine does not need to be independently connected with the water pump again, and conciseness and high efficiency of a drilling production site are achieved. In addition, a three-way valve and a throttling valve are arranged in a circulating system, the flow of the system is adjusted, the purpose of adjusting the water brake descending speed is achieved, the drilling tool descending speed is increased, and the safety in the drilling tool descending process is effectively guaranteed.

The dredger mud conveying pipe with the filtering device comprises a main connecting pipe, a cleaning pipe and a filtering assembly, the mud conveying pipe is provided with a disconnection position, and annular plates are arranged at the two ends of the disconnection position of the mud conveying pipe; the two ends of the main connecting pipe are hermetically and rotationally connected with the periphery of the annular plate; the cleaning pipe is a square pipeline, the width of the cleaning pipe is matched with the outer diameter of the main connecting pipe, the axis of the cleaning pipe perpendicularly intersects with the axis of the main connecting pipe, one end of the cleaning pipe is connected with the main connecting pipe in a sealed mode, a sealing cover is arranged at the other end of the cleaning pipe, and one side of the cleaning pipe is parallel to the annular plate on one side. The filtering assembly is arranged in the main connecting pipe and used for preventing large-size impurities from passing through. According to the utility model, the problem that large-size sundries enter the mud conveying pipe is solved, and the situation that the mud pump is damaged by the large-size sundries is avoided.

The invention discloses a water-rich karst stratum earth pressure balance shield tail sealing system protection method, which is characterized in that a metal fender (7) tool is designed below a connecting bridge (4) to form a movable slag collecting pit (8), pumped foreign matters are prevented from flowing to a shield tail along with sewage, and the water-rich karst stratum earth pressure balance shield tail sealing system is protected. The trolley (5) synchronously moves forwards when the track extends, a vacuum slag suction tank (9) is arranged on the trolley (5), sludge in the area of the trolley (5) is sucked into the sludge tank through negative pressure, and then the sludge is conveyed to a belt conveyor (6) from the other end to be conveyed out of a tunnel; a metal and rubber combined fender (7) is designed in a shield tail area to prevent shield tail sludge from entering a shield tail brush, the metal and rubber combined fender (7) is installed on the end face of a duct piece (3) and fixed through a main jacking oil cylinder, cleaning is conducted through a sludge pump and manual work before assembly, after the shield tail area is cleaned up, a retraction oil cylinder is used for synchronously removing the fender (7), and after the duct piece (3) is assembled, reinstallation is conducted to enter the next cycle operation.

This utility model discloses a PCCP pipe winding and slurry impregnation device, belonging to the field of PCCP pipe production technology. It includes a tank, a stirrer, and a slurry coating rack. An opening is provided at the top of the tank, and the stirrer is installed at the bottom. The slurry coating rack is mounted on the tank and has several pulley sets, each including at least one pulley. At least one pulley set is located at the bottom of the tank. The winding wire passes through several pulleys and is wound onto the rotating PCCP pipe wall through the opening. This invention solves the technical problems of uneven slurry application on the steel wire surface, high labor costs, and high energy consumption in the traditional winding and slurry coating process, which relies on manual spraying using a mud pump.

The invention relates to the technical field of drilling equipment, and discloses a cluster hollow coring device based on a small-diameter motor, the cluster hollow coring device comprises a drill bit, a plurality of screw motors, a slurry pump, a plurality of cardan shafts, a reversing assembly and a transmission shaft, the plurality of screw motors are distributed around the axis of the drill bit at intervals; the slurry pump is communicated with all the screw motors and is used for conveying drilling fluid to all the screw motors; each universal shaft is connected with an output shaft of the corresponding screw motor; the reversing assembly is connected with all the universal shafts; the transmission shaft is connected with the drill and the reversing assembly. The reversing assembly is used for converting output power of the multiple screw motors into input power of the transmission shaft. A single large-diameter screw motor is replaced by a plurality of small-diameter screw motors, and the rotor core shift distance of the small-diameter screw motor is smaller, so that the core shift vibration generated during working is reduced, the wear degree of the rotor can be effectively reduced, the failure of a pressure chamber of the motor is avoided, and the service life is prolonged.

The utility model discloses a rocker arm device for ship mud pumping equipment, and relates to the field of bridge construction. The rocker arm device comprises a rocker arm unit, a reinforcing unit is arranged on the rocker arm unit, the rocker arm unit comprises a supporting column, a rotating arm and a folding arm, the supporting column is fixedly installed on a ship body, the rotating arm is arranged above the supporting column, one end of the folding arm is rotationally connected with the front end of the rotating arm, and the reinforcing unit comprises a connecting base, a connecting rod and a fixing disc. The connecting base is slidably connected to the supporting column, the connecting rods are arranged on the two sides of the connecting base, and the fixing disc is movably connected to the bottom ends of the connecting rods. According to the rocker arm device, the connecting base slides on the supporting column, then the connecting rods on the two sides are driven to be unfolded outwards, the fixing disc is driven to move outwards, the fixing disc is always connected with a ship body, then the rocker arm is reinforced, and the unfolding angles of the connecting rods on the two sides can be adjusted according to adjustment of the pumping height; and the rocker arm is always in the most stable state.

The invention relates to the technical field of water treatment equipment, in particular to an inclined pipe cleaning method and device. The travelling crane is provided with a mud pump, the mud pump is used for lowering the liquid level of the sedimentation tank to be above the tops of the inclined pipes and maintaining a covering water layer above the tops of the inclined pipes within a preset height range, the travelling crane moves in the arrangement direction of the inclined pipes, and the travelling crane is provided with an air inlet pipe; the aeration pipe is communicated with the air inlet pipe, a plurality of exhaust holes are formed in the pipe wall of the aeration pipe in the axis direction of the aeration pipe, the axes of the exhaust holes are parallel to the axis of the inclined pipe, and the aeration pipe is located below the inclined pipe. According to the inclined pipe cleaning device, the inclined pipe can be cleaned while the structural stability of the inclined pipe is ensured.

The hydraulic engineering desilting device comprises a ship body, a mounting frame is fixedly mounted on the upper surface of the rear side of the ship body, and connecting rods are connected to the two sides of the mounting frame. By using the height adjusting mechanism, the reciprocating mechanism, the stirring mechanism and the mud pumping mechanism, the desilting efficiency and quality can be remarkably improved. Through cooperative work of the height adjusting mechanism and the reciprocating mechanism, the sludge scraping mechanism can be flexibly adjusted according to the actual sludge depth and go deep into the bottom of a sludge layer to work, meanwhile, the stirring mechanism scatters the sludge through gear transmission, the dredging range is expanded, the sludge removing process is accelerated, and therefore the dredging period is greatly shortened, and the dredging efficiency is improved. And the engineering cost is reduced. Besides, the stirring mechanism is matched with the sludge pumping mechanism, so that comprehensive and deep cleaning of the sludge is ensured, the common problem of incomplete dredging in a traditional dredging method is avoided, and the water body and the ecological environment are effectively protected from being affected by secondary pollution of residual sludge.

The invention discloses a movable slurry box in-groove-in-box combined desanding circulating slurry system and a construction method. The system comprises a volume-adjustable movable slurry box which is composed of a bottom plate, a longitudinal plate, a transverse partition plate and a waterproof groove and can be used as a multifunctional slurry storage device such as a waste water box and a circulating slurry box. Slurry in the construction groove section is conveyed to the rotational flow vibration coarse screen slag remover through an air compressor and a slurry pump to be subjected to coarse sand filtration, the slurry obtained after preliminary sand removal enters the circulating slurry box, the slurry and sand are suspended through stirring of the spiral stirring machine, then the slurry is conveyed to the rotational flow vibration fine screen slag remover, and fine sand and muck are separated; the purified slurry is mixed and regenerated in a slurry mixing box, and is returned to a construction groove section for reuse after being qualified. During construction, the box body can be assembled and adjusted in size according to groove section requirements, and is disassembled and moved to adjacent groove sections for repeated use along with construction propulsion. The in-groove and in-box combined desanding of the slurry is realized, the repeated utilization rate of the slurry is improved, and leakage pollution is avoided.

The present application relates to the technical field of mud pump, particularly relates to a double-cylinder double-feeding energy-saving plunger mud pump, which comprises a fixed base, a piston cylinder is bolted on the upper end of the fixed base, a communication pipeline is connected to the piston cylinder, an output pipe is connected to one end of the communication pipeline, a connecting sleeve is connected to the other end of the communication pipeline, and an input pipe is arranged on the lower side of the connecting sleeve. The double-cylinder double-feeding energy-saving plunger mud pump can automatically sense the change of mud pressure, drive the input pipe to revolve around the connecting sleeve, quickly adjust the feeding position when the filter screen is completely blocked, avoid the influence of long-time pipe blockage on construction efficiency, and does not need manual adjustment. When the filter screen is partially blocked, the change of pressure triggers the automatic cleaning mechanism, drives the input pipe to rotate, the fixed scraper rod can scrape the filter screen to remove the blockage, and the time cost of manual cleaning is reduced.

The invention discloses a multi-joint cutter suction device for environment-friendly dredging of river sediment, which relates to the technical field of environmental protection, and comprises a suction acquisition assembly for forming a suction flow field through a suction head and introducing sludge slurry into a suction pipeline; the long-distance sludge discharging and conveying assembly is used for continuously conveying sludge slurry to a rear-end treatment end along a sludge discharging main pipeline after the sludge slurry is pressurized by a slurry pump, and the sludge discharging main pipeline comprises an anti-arch high-point section; the anti-arch accumulated gas isolating and pumping and discharging assembly is used for guiding the accumulated gas into the buffer space and pumping and discharging the buffer space to eliminate the accumulated gas of the anti-arch when the accumulated gas occurs at the high-point section of the anti-arch; according to the invention, an air plug isolation buffer branch, a liquid phase one-way back-filling branch and a pump outlet shunt-driven jet air exhaust branch are constructed between a suction side and a main conveying link, and a state machine method based on pressure-flow characteristics is matched, so that isolation buffer and self-energy air exhaust self-healing of an air plug are realized.

This invention provides a mud pump and a method for configuring its flushing parameters. The mud pump includes two inlet guide pipes arranged symmetrically around the center line of the impeller. One end of each inlet guide pipe is connected to the suction flushing chamber and forms an inlet on the front cover; the other end is connected to an external water source. The length direction of the inlet guide pipe is aligned with the tangential direction of the suction flushing chamber. The water flow direction from the inlet guide pipe to the inlet is aligned with the rotation direction of the impeller, which reduces the impact of the flushing water flow on the rotating water flow in the suction flushing chamber and reduces wear on the mud pump's flow-through components. The mud pump flushing parameter configuration method is based on the impeller diameter D. 叶 The values ​​of mud pump speed n and mud pump head H are calculated using empirical formulas to obtain appropriate flushing flow rate and flushing pressure, preventing mud from flowing back into the gap between the impeller and the wear-resistant liner, improving the stability of mud pump operation, and contributing to the smooth progress of construction.

The utility model discloses an impurity removal device for an impregnation tank for cord thread impregnation, which belongs to the technical field of impurity removal of impregnation tanks and is technically characterized by comprising an impregnation tank main body and a reflux tank main body fixedly connected to the surface of the impregnation tank main body, a flow guide hole is formed in the impregnation tank main body, and the flow guide hole is communicated with the reflux tank main body. A separation groove is formed in the gum dipping box main body, the separation groove communicates with the flow guide hole, separation of sundries and gum is achieved through a chain wheel A, a chain wheel B, a chain and a filter screen, the problem that due to the fact that sundries exist in the gum, the gum on the surface of a cord thread is not evenly smeared is solved, and a mud pump, a collecting pipe and a discharging pipe are arranged, so that the gum dipping box is convenient to use. The glue dipping box has the advantages that filtered glue is discharged into the glue dipping box body again, waste caused by the fact that the glue is not prone to being recycled is solved, impurity removal of the glue is accelerated by arranging a baffle and an extrusion plate, and the problem that the glue cannot be separated from impurities in time due to the viscosity of the glue during impurity removal is solved.