1935 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.

The invention relates to the technical field of dredge pump performance analysis, and discloses a numerical simulation and model test-based dredge pump performance analysis method, which comprises the following steps of: planning an analysis process, and determining numerical simulation (dredge pump internal flow field simulation) and model test contents (actually measured performance data under different working conditions); determining working condition types according to design parameters and working conditions; generating a performance analysis process set and determining an execution sequence; generating a simulation parameter setting list and a test scheme list of each working condition; and associating the data to generate an overall scheme. The method further relates to working condition analysis boundary determination, working condition type subdivision, dynamic adjustment of the process, test rule optimization, database construction and the like. According to the method, comprehensive and accurate analysis of the dredge pump performance is achieved through multi-dimensional data integration and a dynamic mechanism, the analysis efficiency and reliability are improved, and the method is suitable for evaluation and optimization of the dredge pump performance.

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 discloses an automatic control method based on artificial intelligence, relates to the technical field of petroleum drilling, and is applied to a slurry pump. The method comprises the following steps: acquiring a slurry pump, determining fluid pulsation characteristics, mechanical wear characteristics and pump efficiency loss characteristics of the slurry pump according to a preset multi-physics field coupling model so as to construct a multi-modal characteristic vector, then generating an initial control instruction based on a preset fuzzy RBF neural network model, and finally verifying and correcting the initial control instruction based on a digital twinborn model so as to obtain a digital twinborn model. And generating a final control instruction to adjust the working state of the slurry pump according to the final control instruction, thereby realizing real-time monitoring and intelligent control of the running state of the slurry pump, being independent of artificial experience, improving timeliness and accuracy of slurry pump control, and further improving efficiency and safety of drilling operation.

The invention relates to an intelligent masonry robot for an underground roadway. The engineering truck comprises a guniting engineering truck and a masonry engineering truck, the guniting engineering truck comprises a mining pickup truck, a stirrer and a slurry pump, and the masonry engineering truck comprises a crawler walking part, a diesel engine pump station, an anti-explosion electric box, a navigation bridge, an auxiliary mechanical arm, a brick placing platform, special bricks and a masonry mechanical arm. The guniting engineering vehicle and the masonry engineering vehicle can operate independently and cooperate with each other during masonry. The auxiliary mechanical arm places a special claw on the brick placing platform, the masonry mechanical arm grabs special bricks above the brick placing platform, mortar is smeared on the special bricks at the position of the mortar spraying nozzle through cooperation of all levels of arms and the mechanical claw at the tail end, the special bricks are built in a roadway, and integration of mortar spraying, mortar coating and bricklaying is achieved under the assistance of the roadway wall structure parameter real-time detection technology. The construction method has the advantages that a traditional manual masonry mode is replaced, and the construction method has the advantages of being good in maneuverability, high in adaptability, high in masonry efficiency, good in sealing effect and high in gas and CO blocking capacity.

The grouting device for hydraulic engineering construction relates to the technical field of hydraulic engineering grouting and comprises a base, a stirring mechanism is arranged in the middle of the top of the base, a slurry pumping mechanism is arranged at one end of the top of the base, a push rod is arranged at the other end of the top of the base, and a switch panel is detachably connected to the middle of the top of the push rod. By arranging the stirring blades, slurry in the stirring tank can be stirred by utilizing the stirring blades, the purpose of cleaning the inner wall of the stirring tank can be achieved by arranging the spiral scraping plate and the conical vortex plate, and by arranging the air pump, air in the stirring tank can be pumped out, so that negative pressure is formed in the stirring tank; and after an electric control valve is adjusted, pumped air can enter the stirring tank from an air return pipe and is sprayed out from a spray head by utilizing high-speed airflow, the slurry on the surfaces of the stirring blades is further cleaned, and the purpose of preventing the slurry from being adhered to the interior of the device is achieved.

The invention provides a method for regulating and controlling technical parameters in a continuous preparation process of a filling material, and relates to the technical field of mine filling automatic control. According to the method, aiming at the condition that the material level of the stirrer is in a safety interval, pumping pressure-stirrer material level double-rate interval control is adopted, that is, the material level of the stirrer is maintained in a safety range required by a process, and meanwhile, the pumping pressure for conveying a filling material required by underground filling is ensured; after the pumping pressure and the material level of the stirrer are both stable, aiming at the condition that the concentration of the slurry pump is not in a set concentration range, adopting concentration fuzzy PID control, and adjusting the concentration of the slurry pump until the concentration is stable in the set range; aiming at the conditions that the concentration of a slurry pump is in a set concentration range and the frequency of a stirrer is in a normal operation range, torque fuzzy PID control is adopted, the frequency of the stirrer is adjusted, and energy conservation and emission reduction are achieved on the premise that the shear stress of a filling material is stabilized.

The invention relates to the technical field of resistivity method geophysical prospecting detection, and discloses a soil reinforcement effect detection device and method based on electrical resistance tomography. The technical problems that in the prior art, an electrode device is difficult to cover the whole pile body, so that an imaging result has certain limitation, and the electrode device is difficult to adapt to pile bodies of different sizes and shapes are solved. The device comprises a rotary spray irrigation pile, a high-pressure slurry pump and an air compressor, the rotary spray irrigation pile comprises a pipe wall and a grouting pipe, a plurality of electrodes are arranged on the outer side of the pipe wall at intervals, an electrode line channel is arranged on the inner side of the pipe wall, and the electrodes are connected through a wire penetrating through the electrode line channel to form an electrode measurement network. The device has the advantages that the reinforcing process of the rotary spray irrigation pile is monitored in real time, and the physical characteristics of foundation soil or a reinforcing body are accurately analyzed.

The invention discloses a method for calculating carbon emission of a trailing suction dredger. The method comprises the steps that S1, the shaft power of a dredge pump is calculated; s2, calculating the shaft power of the high-pressure flushing pump; s3, calculating the main propulsion power of the trailing suction dredger; s4, drag head resistance power is calculated; step S5, forming a ship total power calculation model according to the power calculation results of the step S1 to the step S4, inputting a construction state, process parameters, a construction section and construction time, calculating the instantaneous total power of the ship, and further calculating carbon emission; s6, integrating the calculation model, and calculating the carbon emission of the construction period; s7, the construction periods of different construction sections of the channel are measured and calculated; and S8, arranging different ships for construction in different construction sections according to the calculated construction periods of the different construction sections, and calculating the comprehensive total carbon emission of the fleet in the different construction sections. The dredging efficiency is greatly improved, the energy consumption is reduced, and the carbon emission is reduced.

The device comprises a permeable steel casing, a drilling machine and a counter-force frame, the permeable steel casing is provided with a permeable steel casing window and a permeable hole, a base is arranged at the bottom of the drilling machine, the drilling machine can be installed in the permeable steel casing through the base, and the counter-force frame is connected with the permeable steel casing window. And a turntable is arranged on the base. The high-pressure jet flow soil sampling rod on the drilling machine can rotate by 360 degrees, spouted high-pressure water makes raised soil below a bottom plate into slurry, the slurry is discharged into the permeable steel casing and pumped out of the ground through a slurry pump, a raised area of the bottom plate is emptied and then pressurized through a jack to restore to the original position, the slurry is replaced with the cement slurry, and a new bottom plate bearing layer is formed after reinforcement. The permeable steel casing for soil sampling is transformed into the dewatering well, the underground water level is controlled below the bottom surface of the basement bottom plate all the time through linkage of the automatic water level gauge and the water pump, and the problem that the underground water level of the basement bottom plate swells in extreme weather to cause damage and failure of an anti-floating structure again is solved.

The invention discloses a comprehensive silt treatment method for a water conservancy project, and belongs to the field of silt treatment. A comprehensive silt treatment method for a water conservancy project comprises the following steps that firstly, treatment equipment is moved to the position of silt to be treated, and the silt is pumped into the treatment equipment through an underflow pump; 2, the treatment equipment can stir the silt, so that floating objects attached to the silt are separated from the silt; thirdly, the separated floating objects can float on the liquid level, and the treatment equipment can fish and collect the floating objects; 4, the size of the discharging position of the floating object is adjusted according to the height of the liquid level, the discharging speed of the sediment is adjusted, and the height of the liquid level is controlled; the problems that floating objects in silt are inconvenient to treat, separation of impurities such as stones is affected, silt recycling is not facilitated, the dehydration efficiency is low, and the conveying cost is high can be solved.

The invention relates to the technical field of bridge foundation construction, and particularly discloses a pile foundation cleaning method and a construction method.According to the cleaning method, before concrete is poured into a pile group cast-in-place pile, a slurry pumping and discharging device is adopted for conducting slurry replacement and hole cleaning on a pile hole, and the slurry pumping and discharging device comprises a rotary hydraulic pump and a slurry pumping and sucking steel pipe; the rotary hydraulic pump is connected with the hydraulic pump station through a hydraulic pump pipe, a stirring head is arranged on the rotary hydraulic pump, an air supply pipe used for supplying air into the mud suction steel pipe is arranged on the mud suction steel pipe, sediment is rotationally cut through the stirring head, an air compressor is used for supplying air to form a mud pumping and discharging path, and then sediment is cleaned after being settled. Not only are the construction quality and the construction efficiency improved, but also the construction safety is greatly improved.

The invention relates to the technical field of screening equipment, and provides a dewatering screen for sand-mud separation, the dewatering screen comprises a base, a screen box and a vibration motor, the screen box is mounted on the base through a plurality of rubber springs, and the vibration motor is mounted on the screen box; a first-level screen and a second-level screen are arranged in the screen box from bottom to top in a supporting mode, and meshes of the second-level screen are smaller than those of the first-level screen. A first muddy water collecting tank is arranged on the base, and a swirler is further arranged on the base in a supporting manner; a cyclone bottom flow port is located above the feeding end of the second-stage screen, a first slurry pump is arranged on one side of the first muddy water collecting tank, the water inlet end of the first slurry pump is communicated with the first muddy water collecting tank, and the water outlet end of the first slurry pump is communicated with a tangential feeding port of the cyclone. According to the recycling device, small-particle-size gravel in muddy water generated by the dewatering screen is recycled, and resource waste is effectively reduced.

The invention discloses a mining inorganic material grouting reinforcement device and a using method, and relates to the technical field of grouting equipment, the mining inorganic material grouting reinforcement device comprises a grouting cylinder and further comprises a stirring device, a slurry inlet is formed in the top of the grouting cylinder, a slurry pump is fixedly installed on the circumferential surface of the grouting cylinder, a slurry pumping pipe is arranged between the grouting cylinder and the slurry pump, and a slurry pump is arranged in the slurry pumping pipe. The stirring device comprises a servo motor, a rotating rod, a hollow rod, a stabilizing ring, an L-shaped rod, an extrusion rod, a stabilizing block, a supporting ring and a vibration groove, the hollow rod moves downwards to reset to drive the stabilizing ring and the L-shaped rod to move downwards to reset, and the L-shaped rod moves in a reciprocating mode to stir grout at the bottom of the grouting barrel; and by pushing overlarge solid particles, a channel at the joint can be ensured to be unblocked, and blockage and shielding of the solid particles are reduced, so that continuous flowing of slurry is ensured, and the uniformity and efficiency of grouting are improved.

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 pump shaft polishing device of the slurry pump comprises a supporting plate, one side of the supporting plate is fixedly connected with a fixed frame, the side, located on the fixed frame, of the supporting plate is connected with a movable frame in a sliding mode, and the opposite side walls of the fixed frame and the movable frame are each provided with a three-jaw chuck. The three-jaw chuck rotating shaft located on one side of the fixed frame is connected with a driving motor, the driving motor is fixedly connected with the fixed frame, a pump shaft is arranged between the two three-jaw chucks, and a driving mechanism used for driving the movable frame to move is arranged on the side, close to the movable frame, of the supporting plate. According to the pump shaft polishing device, pump shafts of different sizes and lengths can be horizontally fixed in the polishing process through movement of the movable frame, meanwhile, the feeding and discharging process of the pump shafts is facilitated, the pump shafts can be conveniently adjusted in the polishing stroke by being matched with the bearing frame to drive the polishing plate to move, and the polishing efficiency of the pump shafts is improved.

The utility model discloses a slurry pump spraying device which comprises a water tank, a spraying pump and a spraying main pipe, the input end of the spraying pump is connected with the water tank, the output end of the spraying pump is connected with the spraying main pipe through a water conveying pipe, and a plurality of spraying branch pipes corresponding to a slurry pump cylinder sleeve are arranged on the spraying main pipe in the length direction. According to the slurry pump cooling device, water in the water tank is conveyed to the spraying main pipe through the spraying pump, then is distributed to spraying points through the spraying branch pipes corresponding to a slurry pump cylinder sleeve, and is sprayed to the slurry pump cylinder sleeve through linkage of the rotating shaft, the connecting rod, the gear and the rack. The direction and the spraying angle of the auxiliary spraying head are accurately adjusted, an operator can easily adjust the spraying direction according to the actual situation through knob operation of a screw rod in the driving structure, the use flexibility and convenience are improved, and an effective cooling and cleaning means is provided for different working condition requirements.

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 invention provides a digital twinning method for a mud pump for well drilling, which relates to the technical field of mud pumps, and comprises the following steps: aiming at the structural characteristics of the mud pump for well drilling, constructing a mud pump static model comprising a power end static model, a fluid end static model and an auxiliary static model; based on the slurry pump static model, well drilling production real-time data and slurry pump operation real-time data in the well drilling process are accessed to build a slurry pump database; and performing data driving on the slurry pump static model according to the data types of the drilling production real-time data and the slurry pump operation real-time data to obtain a slurry pump digital twinborn model which is in virtual-real synchronization with the real-time drilling process. The performance of the slurry pump can be improved, the maintenance cost is reduced, non-planned shutdown is reduced, and a foundation is laid for predictability of the slurry pump.

The invention belongs to the technical field of heavy slurry pumps, and particularly relates to a heavy slurry pump shell adopting a replaceable structure, the heavy slurry pump shell comprises a base and a rotating mechanism, the rotating mechanism is arranged above the base and comprises a connector, a rotating bearing, a rotating ring and a pump shaft, and the output end of the pump shaft is provided with a pressure reducing sleeve and an impeller; the pump further comprises a pump shell assembly and a protection assembly, the pump shell assembly comprises a pump body and a pump cover which are detachably connected through a locking mechanism, and the protection assembly comprises a rear protection plate and a front protection plate which are detachably connected through a fastener. The pressure reduction sleeve is connected with the pump body and the rear protection plate in a clamped mode, the protection assembly and the pump shell assembly are fixed through the locking mechanism and the fastener, the internal structure can be rapidly disassembled and assembled, the internal structure can be conveniently and independently replaced, the maintenance cost can be effectively reduced, and the working efficiency can be effectively improved. And meanwhile, by replacing the internal structure, the aging of the equipment can be effectively delayed.

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 discloses a complex geological foundation open caisson structure and a construction method thereof, and relates to the technical field of open caisson construction.The open caisson structure comprises an open caisson device, a lifting device and a slurry pump, and the open caisson device is an auxiliary construction device; the soil pressing structure and the soil cutting structure of the open caisson device can treat the land around the inner wall of the open caisson wall during construction, during construction, the lifting device places the open caisson device into the poured open caisson wall, the open caisson device can flatten the land around the blade foot of the open caisson wall, and the open caisson wall can be well poured into the open caisson wall. Loads borne by all parts of the blade foot are the same, deviation of the open caisson wall during descending is avoided, the land around the blade foot can be evenly excavated, underground muddy water can be pumped out through the mud pump, underground construction is prevented from being affected, and after the open caisson wall descends to the preset elevation, the lifting device takes the open caisson structure out of the open caisson wall, and the open caisson wall is lifted to the preset elevation. And then the open caisson wall is subjected to bottom sealing.

The invention discloses an underground coal mine large-diameter directional drilling system and a hole forming method. The system comprises a directional drill bit, a single-bend screw motor, a non-magnetic drilling tool, a packing cross short section, a double-wall drilling rod and a double-channel water injection and slag discharge device which are connected in sequence, and a mud pulse measurement-while-drilling instrument is arranged in the non-magnetic drilling tool; the packing crossed short section comprises a short section body and a limiting connector which are connected, and the outer wall of the short section body is sleeved with a sliding sleeve. A double-wall drill rod local reverse circulation mode is adopted for deslagging, compared with a conventional direct circulation mode, the circulating water amount needed for deslagging is greatly reduced, the water supply and pollution discharge requirements of a directional drilling site are greatly reduced, the rated discharge capacity and power of a matched slurry pump are greatly reduced, circulating water flows in an annular channel and a center channel of the double-wall drill rod, and the water supply efficiency is greatly improved. The overflow section is not influenced by the hole wall stratum, the reverse circulation flow deslagging efficiency is high, the cleaning effect in the hole is good, and the technical problems that the amount of circulating flushing liquid needed by a conventional large-diameter directional hole drilling system is large, and the hole wall stability maintaining capacity is poor are solved.

The invention belongs to the field of slurry pumps, and particularly relates to a high-efficiency and high-output slurry pump which comprises an impeller arranged in a pump body, a rotating shaft connected with a hub of the impeller and used for driving the impeller to rotate, and a filler box arranged on the rotating shaft and used for preventing leakage of the pump body. The impeller is provided with a feeding end face and a feeding port located in the front side of the feeding end face, the feeding end face is provided with a flow dividing sleeve coaxial with the feeding port and a flow guiding cone located in the flow dividing sleeve, and the flow guiding cone protrudes towards the feeding port. The fixed end of the flow dividing sleeve is fixedly connected with the feeding end face, the overhanging length of the overhanging end is larger than the protruding length of the drainage cone, first spiral channels are formed in the inner side wall and the outer side wall of the flow dividing sleeve, and a set of flow dividing channels communicated with the first spiral channels are formed in the fixed end of the flow dividing sleeve. The slurry pump can effectively reduce the impact wear of the slurry to the impeller and improve the output performance of the slurry pump.

The invention relates to the technical field of data analysis, and discloses a slurry pump fault detection and service life prediction system and method based on big data. According to the method, firstly, a slurry pump vibration signal is obtained, an abnormal vibration signal is detected and deleted, and then noise reduction processing is conducted on the slurry pump vibration signal; secondly, after the denoised slurry pump vibration signal is subjected to segmented aggregation approximation and Grubby angle field processing, a slurry pump vibration signal image is generated, the characteristics of the slurry pump vibration signal image are extracted, a convolutional neural network is trained, convolutional neural network parameters are optimized based on an electric eel foraging optimization algorithm, a convolutional neural network recognition model is obtained, and a recognition result of the convolutional neural network is obtained; fault detection of the slurry pump is realized; and decomposing the IMF component of the slurry pump vibration signal, training the LSTM neural network to obtain an LSTM neural network prediction model, and outputting a slurry pump life prediction value. The purposes of fault detection and service life prediction are achieved by processing the vibration signal of the slurry pump, and the method is accurate and objective.

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.

A mining submersible slurry pump with stirring and crushing functions comprises a pump body and an impeller, a rotating shaft for driving the impeller to rotate is rotatably arranged in the pump body, a filter cylinder is arranged at a water inlet of the pump body through a detachable structure, the rotating shaft extends into the filter cylinder and is provided with a moving cutter through a fixed structure, and the filter cylinder is provided with a static cutter through a sliding structure. According to the mining submersible slurry pump, the stirring function, the crushing function, the shearing function and the automatic tensioning function of the movable cutter and the static cutter are integrated at the bottom of the pump body, the technological process is simplified, and the occupied area of equipment is reduced; the synergistic effect of the stirring assembly, the crushing assembly and the shearing assembly is optimized, the treatment capacity of complex ore pulp containing large-particle ore, coal cinder, silt, ropes, fibers and the like is improved, and the operation and maintenance cost is reduced.

The utility model relates to the technical field of shield tunneling machine slurry discharging, in particular to a shield tunneling machine slurry discharging mechanism which comprises a shield tunneling machine body and a slurry discharging mechanism body, the slurry discharging mechanism body comprises a slurry bin pipeline, an air cushion bin pipeline, a shell, a three-way ball, a rotating unit, a slurry discharging pipeline, a filter screen and a slurry pump, and the shield tunneling machine body is provided with a slurry bin and an air cushion bin. The three-way ball body is provided with three through holes, when the shield tunneling machine is located in a soft soil stratum without rock, the muddy water bin pipeline and the air cushion bin pipeline are opened for slurry discharging, the slurry discharging efficiency is improved, when the shield tunneling machine is located in the stratum with rock, the rotating unit is started to drive the three-way ball body to rotate, then the muddy water bin pipeline is closed, and slurry discharging is conducted only through the air cushion bin pipeline. Meanwhile, the filter screen filters stones, abrasion to the slurry pump is avoided, slurry reaches the slurry pump through the through hole of the three-way ball body and the slurry discharging pipeline, and therefore the slurry discharging requirements of the shield tunneling machine under different construction stratum conditions can be met, and the slurry discharging bin position is adjusted according to environment changes.

The present application discloses a headbox for papermaking, comprising a base for providing support force, a pulp discharging mechanism arranged on the base and used to assist pulp to be sprayed onto a paper forming net, the pulp discharging mechanism comprising a pulp discharging box, an upper lip plate and a lower lip plate are arranged inside the pulp discharging box, a lip for pulp discharging is formed between the upper lip plate and the lower lip plate, a pulp discharging mechanism for extracting excess accumulated pulp is arranged on the side of the pulp discharging box near the lip, a scraper for blocking excess pulp is connected to the side wall of the pulp discharging box, the pulp discharging mechanism comprises a bottom plate, a vertical plate is fixedly connected to the bottom plate, a plurality of transmission components for taking away excess pulp are arranged between the bottom plate and the scraper, the transmission components comprise a plurality of rollers, the same group of rollers are connected to the same belt for transmission, a water bucket for containing pulp is fixedly connected to the side of the belt away from the roller, and a driving mechanism for driving the roller to rotate is arranged in the extraction groove. The pulp accumulation is reduced, and the influence on paper forming is reduced.

The invention belongs to the technical field of testing, and particularly relates to a multi-pollutant co-processing monitoring system of desulfurization equipment. The system comprises a processor, a desulfurization effect monitoring module, an equipment operation feedback module, a matching judgment module, a preprocessing analysis module and a regulation and control optimization module. The desulfurization effect monitoring module synchronously collects sulfur and nitrogen oxide content and dust concentration data in tail gas, the treatment effect is evaluated through a comprehensive deviation value, and the equipment operation feedback module calculates the equipment comprehensive treatment capacity value in combination with operation data of an air compressor and a slurry pump. The matching judgment module evaluates the matching degree of the processing capacity and the multi-pollutant load and generates a regulation and control signal, the preprocessing analysis module evaluates the preprocessing effect and generates an optimization instruction, the regulation and control optimization module generates an optimal regulation and control parameter set based on a multi-target optimization algorithm, and the processor dynamically adjusts a weight threshold and executes fault diagnosis. And comprehensive evaluation and cooperative regulation and control of the sulfur, nitrogen oxide and dust treatment effect are realized.