999 results about "Slurry pump" patented technology

The invention relates to the technical field of vibration monitoring, in particular to a slurry pump motion monitoring management system based on data analysis, which comprises a multi-source acquisition module, a period judgment module, a trend focusing module and a dynamic management and control module. According to the method, vibration data are collected through a three-axis acceleration sensor, a fundamental frequency amplitude is extracted through FFT, time-frequency characteristics and periodic distribution are fused in combination with an extreme value interval sequence, the data representation dimension is enhanced, the rising slope is processed through moving average, the periodic variation is calculated, random noise is restrained, and trend continuity is enhanced. Monotonicity test is combined with dynamic threshold judgment to improve anomaly recognition sensitivity; a sliding window is used for segmenting multi-cycle data; a sudden change interval is positioned based on a pressure amplification rate second derivative; the limitation of a frequency domain on transient feature recognition is broken through, a pressure amplification rate three-dimensional vector is constructed, cosine similarity is calculated, and a working condition difference degree is quantified to dynamically bind a maintenance instruction; and closed-loop feedback is formed to improve the early warning and decision matching degree.

A pump side part for use with a centrifugal slurry pump for pumping a fluid mixture containing particulate matter, the pump side part comprising a main body having a main axis, the main body including a side wall section which extends laterally with respect to the main axis and has opposite facing first and second sides, a plurality of formations on a surface of the second side including an inner formation and an outer formation in spaced relation to the inner formation, the formations being configured so that in use the formations generate a flow of the fluid mixture across the surface which detaches from the surface the particulate matter adjacent thereto.

The invention relates to the technical field of welding, and provides slurry pump shell welding equipment which comprises a mechanical arm, a welding gun and a workbench, and further comprises at least two moving tables, a clamping seat, a profiling self-adaptive clamp system, a preheating part and a slow cooling system, and the welding gun is mounted at the movable end of the mechanical arm; the clamping seat is rotatably arranged on the moving table, the profiling self-adaptive clamp system is installed on the clamping seat and used for adaptively clamping the inner side and the outer side of a slurry pump shell, and the preheating part is installed at a welding gun and used for locally and precisely preheating the welding position. The slow cooling system and the profiling self-adaption clamp system are matched to conduct heat preservation and slow cooling on the slurry pump shell after welding, the slow cooling system comprises a heating bin and an air supply pipe, the heating bin is installed on a clamping base, and a heater and a draught fan are installed in the heating bin. According to the technical scheme, the technical problem that in the prior art, the preheating effect and the post-welding heat preservation and slow cooling effect are poor is solved.

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 invention provides a hydraulic engineering desilting device convenient to clean, and relates to the technical field of hydraulic engineering desilting, the hydraulic engineering desilting device convenient to clean comprises a main supporting frame, a main slurry conveying pump, side reamer supports and a side connecting frame, the lower portion of the main supporting frame is fixedly connected with the main slurry conveying pump, and the side reamer supports are arranged on the two sides of the main supporting frame; the upper portion of the side reamer support is in axial sliding connection with the side connecting frame, the upper portion of the main supporting frame is rotationally connected with a lower connecting rotating frame in the circumferential direction, the main supporting frame is fixedly connected with an upper sliding groove disc above the lower connecting rotating frame, and outer arc-shaped sliding grooves are formed in the two sides of the upper sliding groove disc. The main supporting frame is rotationally connected with an upper connecting rotating frame in the circumferential direction above the upper sliding groove disc. The distance between the side reamer support and the main slurry conveying pump is changed, the situation that machine halt is caused due to the fact that stones are clamped between the main slurry conveying pump and the reamer rotating head is reduced, and the problem that due to the design of the fixed distance between the reamer and the suction opening, the stones with the large particle size are prone to being clamped between the reamer and the suction opening, and equipment overload machine halt is caused is solved.

The invention belongs to the technical field of slurry pumps, and particularly relates to a high-efficiency energy-saving slurry pump capable of converting applicable use environments, which comprises a base, a mounting table is mounted on one side of the base, a driving motor is mounted on the mounting table, a driving wheel is mounted at the output end of the driving motor, and the driving wheel is connected with a driven wheel through a belt; the main shaft can be matched with the clutch assembly to drive the impeller assembly to rotate, the electric telescopic rod can drive the moving frame to move, the moving frame can drive the clutch plate to move when moving, the corresponding impeller assembly can be driven to rotate when the clutch plate makes contact with the friction plate, and the impeller assembly can be driven to rotate when the clutch plate is away from the friction plate. When the main shaft rotates, the impeller assemblies are not driven to rotate, the impeller assemblies made of different materials can be driven to rotate according to the use environment, slurry conveying is achieved, the multiple impeller assemblies can be driven to rotate at the same time through cooperation of the main shaft and the clutch assembly, and the slurry extraction efficiency is improved.

The invention relates to the technical field of slurry pumps, and particularly discloses a slurry pump experimental device, which comprises a pump body experimental unit, a slurry pump experimental unit and a slurry pump experimental unit, the slurry supply unit is located on the input side of the slurry pump and used for conveying slurry to the slurry pump; the slurry backflow unit is located on the output side of the slurry pump and used for recycling the slurry pumped out by the slurry pump and enabling the slurry to flow back to the slurry supply unit; solid particles are intercepted through the separation disc, the height of the separation disc is adjusted according to preset solid content parameters, and the states of slurry with different solid particle contents can be accurately simulated; the viscosity of the slurry can be quickly adjusted by utilizing the heating tank and the stirring piece in combination with preset viscosity parameters, so that the configuration of the slurry with different viscosities is realized; by adjusting the state of the slurry pumping piece, the slurry solid content simulation state and the slurry viscosity simulation state can be flexibly switched, so that the test requirements of the slurry pump under various simulation working conditions are met.

The invention discloses a submarine pipeline laying device, and belongs to the technical field of submarine pipeline laying, the submarine pipeline laying device comprises a sand box, a mixed fluid pressurization conveying assembly and a vibration transmission assembly, the bottom of the sand box is provided with a slag outlet pipe, the outer surface of the slag outlet pipe is connected with a slag slurry pump, a pipeline is installed in a submarine groove, and the upper surface of the pipeline is movably connected with a pipe bag; through mutual cooperation of the water reducing agent tank, the water reducing agent pipe, the flow meter, the flocculant tank, the flocculant pipe and the water pump II, a water reducing agent and a flocculant can be accurately conveyed into the sand box, the flowability of the water reducing agent and the flocculant is ensured, and a mixture of seawater, coarse sand, the flocculant and the water reducing agent can be pumped into the pipe bag through the slurry pump; the flowing and impact of the liquid can drive the tube bag to vibrate, and then drive the vibration rod, the vibration piece, the vibration ball and the non-Newtonian fluid balls in the hole grooves to vibrate, so that the vibration of the tube bag is accelerated, the mixture is prevented from caking, and all corners of the tube bag are uniformly filled with the mixture.

A wear-resistant ceramic composite metal slurry pump for mineral processing. The slurry pump comprises a bracket (1), a bearing assembly (2), a stuffing box (3), a pump casing (4), and wetted parts; the wetted parts include a front liner (5), a rear liner (6), a throat bushing (7), and an impeller (8); the front liner (5), the rear liner (6), the throat bushing (7), and the impeller (8) each adopt a composite structure in which ceramic blocks are bonded to metal, and the ceramic blocks are bonded to a metal framework in wear-prone areas of the wetted parts by means of an adhesive.

The present invention relates to the technical field of data analysis, and discloses a slurry pump fault detection and life prediction system and method based on big data. The present invention first obtains the slurry pump vibration signal, detects the abnormal vibration signal and deletes the abnormal vibration signal, and then performs noise reduction processing on the slurry pump vibration signal; secondly, the slurry pump vibration signal after noise reduction is processed by segmented aggregation approximation and Gram angle field to generate a slurry pump vibration signal image, and extracts the slurry pump vibration signal image features, trains a convolutional neural network, and optimizes the convolutional neural network parameters based on the electric eel foraging optimization algorithm to obtain a convolutional neural network recognition model to achieve slurry pump fault detection; then, the slurry pump vibration signal IMF component is decomposed, the LSTM neural network is trained, the LSTM neural network prediction model is obtained, and the slurry pump life prediction value is output. The present invention achieves the purpose of fault detection and life prediction by processing the slurry pump vibration signal, and the method is accurate and objective.

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 discloses a digital diaphragm wall closed-loop pouring system and construction method.The digital diaphragm wall closed-loop pouring system comprises a concrete supply device, a central integrated control machine and at least one pouring unit electrically connected with the central integrated control machine, and each pouring unit comprises a pouring mechanism, a slurry pumping mechanism and the central integrated control machine; an active pressure pouring technology is adopted, continuous and controllable extra power is provided for concrete flowing through a pressurizing mechanism such as a concrete pump or an air pressure pressurizing system, and a traditional pouring mode purely depending on concrete gravity is replaced. By means of the basic change, the concrete in the guide pipe can actively overcome larger mud static pressure and pipeline resistance, and therefore the technical problems that due to the fact that the burial depth is too large, the concrete cannot flow out smoothly, the pipe is blocked, and even a pile is broken are thoroughly solved.

The utility model discloses a system for rapid dehydration treatment and recycling of shield slurry, which relates to the technical field of slurry treatment, and is characterized in that a slurry pool, a stirring pool, a storage pool and the like are arranged on a shield construction site, the slurry is dewatered and changed into muck through the steps of pumping water by a slurry pump, adding a gel breaker for stirring and the like, and then the muck is transported to a stacking yard for fermentation; and treating by a mud-stone separator, a screening device and the like, mixing with aggregate, adding a medicament, and stirring to form a consolidated material. The system can quickly reduce the water content of the slurry, effectively remove pathogenic bacteria and peculiar smell, realize refined dehydration and efficient resource utilization, reduce the transportation cost, reasonably utilize the site, and better meet the requirements of shield slurry treatment and resource utilization in projects such as subway construction.

The invention relates to the technical field of coating die head control methods, in particular to an ML-based coating die head and slurry pump feedforward prediction control method, which comprises the following steps: collecting coating process parameters in real time to construct an input feature vector; a PID control algorithm is used for calculating the basic adjusting quantity according to the partition surface density deviation and the average surface density deviation; inputting the basic adjustment quantity and the input feature vector into a machine learning prediction model to obtain a surface density change prediction value; calculating a prediction trust coefficient in combination with historical prediction accuracy, and generating a feed-forward correction quantity based on the deviation between a surface density change prediction value and a target value and the prediction trust coefficient; and superposing the basic regulation quantity calculated by the PID control algorithm and the feedforward correction quantity, and then outputting a final control instruction. According to the method, through feedforward fusion of machine learning prediction and PID control, the hysteresis quality of traditional PID control is effectively overcome, waste materials caused by abnormal surface density are reduced, and the stability and consistency (the CPK value is higher and the COV value is lower) of the coating process are remarkably improved.

The invention relates to a slurry pump impeller and a manufacturing method thereof, and belongs to the technical field of pump impellers. The slurry pump impeller comprises a metal core bar and a plurality of blades. The metal core bar comprises a pair of first cover plates and a plurality of supporting pieces. The pair of first cover plates are oppositely arranged along a first direction; the supporting sheet is located between the pair of first cover plates, and the supporting sheet is fixedly connected with the cover plates; each blade is provided with a root part and an end part along the length direction; the multiple blades are arranged in a circumferential array with the first direction as the axis. The root part is closer to the axis of the plurality of blades than the end part; the supporting sheets penetrate through the blades, and the supporting sheets support the blades; the support sheet is configured to be closer to the end part among the end part and the root part; and the plurality of blades are in one-to-one correspondence with the plurality of supporting sheets. The slurry pump impeller provided by the embodiment of the invention has relatively long service life.

The invention discloses a mining wear-resistant ceramic composite metal slurry pump. The slurry pump comprises a bracket, a bearing assembly, a stuffing box, a pump shell and an overflowing part. The overflowing piece comprises a front protective plate, a rear protective plate, a protective sleeve and an impeller; the front protective plate, the rear protective plate, the protective sleeve, the impeller and other overflowing pieces are all of a composite structure formed by bonding ceramic blocks to metal, and the ceramic blocks are bonded to metal frameworks of the easy-to-wear areas of the overflowing pieces through adhesives. The invention further provides a preparation method of the composite material of the ceramic block bonded with the metal. According to the ceramic composite metal slurry pump, the abrasion resistance and corrosion resistance of ceramic are exerted, the partitioning design solves the problems that silicon carbide ceramic is difficult to be large and large in brittleness, the ceramic blocks can be independently replaced, the maintenance cost is low, and the ceramic composite metal slurry pump is particularly suitable for conveying media containing solid particles and corrosivity in mineral separation, metallurgy, chemical engineering and the like.

The utility model provides a slurry shield machine slurry testing system which comprises a storage tank, a slurry pumping assembly, a slurry testing assembly, a pipeline, a funnel and a first measuring flask arranged on one side of a support, a second measuring flask arranged on the other side of the support, the funnel is located above the first measuring flask, a first screen is arranged in the funnel, and a funnel opening and closing electric ball valve is arranged at the bottom of the funnel. A first measuring flask is supported on an electronic weighing instrument, a second measuring flask is flush with the first measuring flask, a laser tester is arranged on a support and is aligned with a set scale on a funnel, a capacitance proximity switch is arranged below the funnel, and a clamping ring is an open-close type clamping ring which is rotatably arranged on the support. According to the automatic sampling device, automatic sampling and automatic detection can be achieved, time and labor are saved, efficiency is high, accuracy and reproducibility are good, and shield construction can be better guided.

The invention belongs to the field of slurry pump sheath machining, and particularly relates to a tool for a vertical lathe and a clamping method.The tool comprises a chuck, a clamp, an extension device and a driving device.The chuck is installed on the vertical lathe, the driving device is installed in the chuck, a groove is formed in the surface of the chuck, and the extension device is arranged in the groove. The driving device is provided with a groove, the clamp penetrates through the groove to be connected with the driving device and is connected to the chuck in a sliding mode, the extending device is fixedly connected to the end of the clamp, a workpiece is arranged on the chuck, and the extending device is connected with the side portion of the workpiece in an abutting mode. Compared with a traditional clamp, the clamp has the advantages that the height is increased, a large-size slurry pump sheath can be better clamped, a traditional clamp heightening mode is replaced, manpower is saved, efficiency is improved, reference can be provided for centering adjustment of the sheath, and a more convenient and accurate centering mode is provided.

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 utility model relates to the field of spraying and feeding equipment, and discloses organic slurry spraying and feeding equipment which comprises a weighing table, a plurality of weighing sensors are fixedly arranged on the lower end face of the weighing table, a slurry pump machine is fixedly arranged on one side of the upper end face of the weighing table, and moving mechanisms are fixedly arranged on the two sides of the upper end face of the weighing table. And a slurry conveying hose is wound at the upper end of one of the two moving mechanisms. According to the utility model, during use, the slurry pump machine is arranged at the upper end of the weighing platform, and when organic slurry enters the slurry pump machine, the slurry pump machine can convey the organic slurry into the slurry conveying hose wound on one of the two moving mechanisms; due to the fact that the slurry pump machine, the moving mechanism and the slurry conveying hose are all arranged on the weighing platform, and a plurality of weighing sensors are arranged at the lower end of the weighing platform, a worker can conduct weighing and calculate the weight of feeding every time when feeding every time.

The utility model discloses a sea sand cleaning system based on micro-nano bubble, including micro-nano bubble generating device, sand-water mixing device, slurry pump, whirlcone, delivery pipeline and screening device, micro-nano bubble generating device is provided in the one side of sand-water mixing device, the sand-water mixing device passes through the slurry pump and is communicated with whirlcone, the delivery pipeline passes through the whirlcone, the delivery pipeline passes through the delivery pipeline, the screening device passes through the delivery pipeline, the delivery pipeline passes through the delivery pipeline, the delivery pipeline passes through the delivery pipeline. The screening device is arranged below the swirler, and the micro-nano bubble generating device, the sand-water mixing device, the slurry pump and the swirler are sequentially communicated through a conveying pipeline; through mutual cooperation of the micro-nano bubble generating device, the sand-water mixing device, the slurry pump, the cyclone, the conveying pipeline and the screening device, sea sand is cleaned by utilizing the characteristics of micro-nano bubbles, and chloride ions, pollutants and the like attached to the surface, tiny gaps and deep layers in the sea sand are stripped out, so that the efficient and sufficient cleaning effect is achieved.

The utility model discloses a wear-resistant ceramic composite metal sheath, which comprises a sheath ceramic block and a sheath metal shell, and the sheath ceramic block is fixed inside the sheath metal shell. The sheath ceramic blocks are divided into one or more sheath ceramic blocks along the circumferential direction of the sheath metal shell and cover an overflowing surface or an easy-to-wear area in the sheath; the easy-to-wear area refers to an area where the linear velocity of fluid near the sheath is greater than 20m / s and / or backflow is generated; the radial height of the sheath ceramic block does not exceed 300mm; the width of the outer diameter of the sheath ceramic block does not exceed 300mm; the thickness of the sheath ceramic block ranges from 15 mm to 30 mm. The utility model further discloses a slurry pump comprising the wear-resistant ceramic composite metal sheath.

The invention provides a disassembly-free maintenance high-temperature slurry oil pump and a maintenance method thereof, and aims to solve the problems that an impeller of an existing high-temperature slurry oil pump usually adopts an impeller wear ring for wear-resistant protection, on one hand, the impeller wear ring is possibly loosened due to thermal expansion difference or material occlusion tendency, and on the other hand, when the impeller wear ring is abraded and needs to be replaced, the impeller wear ring is damaged. And parts such as a bearing box body, a pump cover, an inner pump cover and the like need to be completely disassembled. According to the high-temperature slurry oil pump capable of being maintained without disassembly, the wear-resistant surface is integrally arranged on the surface of the impeller to replace an impeller wear ring, and the problem that when the impeller wear ring is replaced, the whole pump part needs to be disassembled is solved; besides, a plurality of adjusting blocks are arranged between the bearing box and the bearing box body in the circumferential direction and matched with the wear-resistant surface of the impeller, so that when the sealing gap between the impeller and the wear-resistant volute becomes large, the sealing gap between the impeller and the wear-resistant volute can return to the standard sealing gap value only by disassembling the adjusting blocks and adjusting the thickness of the adjusting blocks, and the maintenance time is greatly shortened.

The invention discloses a superfine grinding and cooling process for producing a kaolin raw material. The superfine grinding and cooling process comprises the following steps: (1) pulping; (2) front-section wet grinding; (3) cooling: pumping the slurry A in the step (2) into a cooling tower for cooling through a slurry pump at the flow rate of 30-70m < 3 > / h to obtain slurry B with the temperature of 30-45 DEG C and the mass concentration of 35-45%; and (4) carrying out rear-section wet grinding. The superfine grinding and cooling process for producing the kaolin raw material has the beneficial effects that the particle collision requirement of superfine grinding is met, the consumption of a dispersing agent is reduced due to low temperature, the total consumption of the dispersing agent is finally reduced, the use cost of the raw material is further reduced, the service life of rear-section wet grinding equipment is prolonged, the maintenance cost is reduced, and the service life of the kaolin raw material is prolonged. And the granularity D92 of the slurry is less than 2 microns, less impurities are introduced, and the qualified rate of the product is more than 95%.

The application provides a slurry pump flow passage component life monitoring system, belonging to the technical field of slurry pump monitoring, comprising a monitoring unit, a gap adjusting unit and a control unit, the monitoring unit comprising a plurality of first ultrasonic sensors arranged on a front guard plate and facing an impeller, for emitting, receiving and generating sound wave data; the gap adjusting unit is used for driving the impeller to move axially to adjust the flow passage gap between the impeller and the front guard plate; the control unit is electrically connected with the first ultrasonic sensors and the gap adjusting unit, receives the sound wave data to calculate the real-time value of the residual wall thickness of the front guard plate and the flow passage gap, and controls the gap adjusting unit to adjust the flow passage gap to a preset minimum threshold value when the real-time value exceeds the maximum value of the gap range threshold value. The slurry pump flow passage component life monitoring system provided by the application realizes real-time monitoring of the wear state of the flow passage component, life judgment and intelligent adjustment of the gap under normal operation of the slurry pump, and forms a complete monitoring and adjustment closed loop.

The utility model relates to the technical field of pipeline desilting, and discloses a desilting device of a drainage pipe network, which comprises a pontoon part and a high-pressure nozzle part arranged at the front end of the pontoon part, two ends of the pontoon part are connected with traction ropes, and the traction rope at the front end is connected with a winding device on the ground. The floating pontoon part is dragged and driven by the winding device to move in the pipeline, traction force is sufficient, meanwhile, the traction rope at the rear end is connected with the booster pump parts, the booster pump parts are connected through the pipeline, the booster pump parts close to the floating pontoon part are connected with the slurry pump through the pipeline, and the pipeline between inspection wells with large intervals can be dredged; and the booster pump part is arranged to ensure sufficient pumping force, sludge in the pipeline is conveniently pumped to the ground, the efficiency is greatly improved, the high-pressure nozzle part is arranged at the front end of the floating boat part, and the high-pressure nozzle part can scatter a sludge layer in the pipeline, so that the slurry pump can better perform sludge suction operation, and the dredging effect on the pipeline is improved.

The invention discloses a shaped sludge water baffle collecting device and a construction method thereof, and relates to the technical field of municipal bridge foundation engineering, and the shaped sludge water baffle collecting device specifically comprises I-type sludge water baffles and II-type sludge water baffles, and the I-type sludge water baffles and the II-type sludge water baffles are alternately spliced; and a sludge collecting water tank is spliced between the I-type sludge water baffle and the II-type sludge water baffle, is connected with a movable slurry pumping pump and is used for discharging sludge water in the sludge collecting water tank. According to the shaped sludge water baffle collecting device, a continuous closed water retaining system is formed, muddy water in a construction area is prevented from overflowing, and sewage can be collected and treated in time.

The utility model relates to the technical field of slurry pumps, and discloses a slurry pump capable of preventing an impeller from being blocked, which comprises a pump body, the impeller is rotatably connected in the pump body, the left side of the impeller is connected with a mounting piece through a fixing assembly, a sealing assembly is arranged between the impeller and the mounting piece, the left side of the mounting piece is fixedly connected with a plug connector, and the plug connector is fixedly connected with a plug connector. A connecting piece is arranged on the left side of the inserting piece, connecting grooves are formed in the outer wall of the connecting piece and the outer wall of the inserting piece, and the connecting piece and the inserting piece are fixedly connected by inserting fixing screws into the connecting grooves. According to the utility model, through the cooperation of the extrusion plate, the spring, the fixing bolt and the like, the sealing ring II and the sealing ring III can be tightly fixed, particles are effectively prevented from entering the connecting part of the mounting piece and the impeller, the blocking condition of the impeller is effectively reduced, the impeller mounting mode is relatively simple and convenient to operate, all parts are tightly and stably connected, and the pump body can be kept in a good closed state; the efficient slurry treatment process is ensured.

The application relates to the technical field of pipeline cleaning, and aims at the problem that concrete accumulations affect the drainage of drainage pipelines, and provides a municipal drainage pipeline foreign matter breaking and cleaning device under complex geological conditions, which comprises a movable chassis, a breaking assembly and a cleaning assembly; the breaking assembly comprises a plurality of high-pressure water guns arranged at the front end of the movable chassis; the cleaning assembly comprises a slurry pump arranged on the movable chassis; the slurry pump is connected with a water inlet pipe and a water outlet pipe; the water inlet pipe extends out of the front end of the movable chassis and is vertically arranged downwards. The application has the effect of conveniently cleaning the concrete accumulations in the drainage pipelines.