164 results about "Slurry pipeline" patented technology

The embodiment of the invention provides a pipeline blockage monitoring method and system for wet metallurgy slurry conveying, and belongs to the technical field of pressure measurement and pipeline blockage monitoring. The method comprises the following steps: collecting multi-point pressure signals along a slurry pipeline, and extracting pressure pulsation amplitudes and phase characteristics in a pump fundamental frequency and frequency multiplication range based on the multi-point pressure signals so as to establish an on-way pulsation transmission sequence; determining equivalent on-way impedance based on comparison between the on-way pulse transmission sequence and a reference working condition, and outputting an initial judgment result for representing a blockage risk; flow temperature and viscosity estimation parameters are introduced based on the initial judgment result to carry out rheological correction on an impedance threshold value, and a high-frequency phase difference is extracted at an elbow section to update a candidate blockage position; and based on the updated candidate blockage position and the corrected impedance threshold, fusing a phase stability index, and generating and outputting a current blockage evaluation result. According to the scheme, early-stage accurate positioning and stable judgment of slurry pipeline blockage can be achieved under complex working conditions.

The utility model relates to an active load adjusting bridge system for a cutter suction dredger. Comprising a bridge frame, the root of the bridge frame is hinged to a cutter suction dredger body, a mud pump assembly and a mud pipeline are installed in the middle of the bridge frame, and a reamer assembly is installed at the end of the bridge frame; a portal frame is installed at the position of a bow of the cutter suction dredger body, a pulley system is installed at the top of the portal frame, a lifting pulley is installed at the top of the end of the bridge frame, a lifting winch is further installed on the cutter suction dredger body, and a lifting steel cable collected and released by the lifting winch is wound on the pulley system and the lifting pulley. And a hydraulic load assembly for exerting an active pushing effect on the bridge frame is further mounted between the cutter suction dredger body and the bridge frame. According to the active load adjusting bridge system for the cutter suction dredger, active load control is applied in a hard soil excavation scene, so that the reamer assembly can effectively feed in a water bottom mud surface, smooth construction is achieved, and excavation construction efficiency is guaranteed.

The invention discloses an efficient dehydration treatment device for waste engineering slurry and a dehydration method of the efficient dehydration treatment device. Relates to the technical field of rapid dehydration of high-water-content waste slurry. The dehydration treatment device comprises a waste slurry pipeline conveying module, a precise dosing module, a multi-stage pipeline mixing and dissolving module and a geotextile tube bag dehydration module which are connected in sequence. Accurate dosing can be achieved according to the water content of the slurry in the slurry sedimentation tank, negative effects on the flocculation effect of the slurry due to too much or too little flocculants are avoided, use of flocculant materials is reduced, the material cost is greatly reduced, meanwhile, the flocculants are arranged, the cationic flocculant YAPAM is adopted as the flocculants, and the flocculation effect of the slurry sedimentation tank is improved. The flocculant has the advantages of small dosage, good flocculation effect, environmental protection and the like. In the flocculating settling process of the slurry, soil particles in the slurry can be rapidly gathered and precipitated through the effects of electric neutralization and adsorption bridging, and the formed floc is stable in structure, large in size and not prone to being broken.

The utility model relates to the technical field of foundation reinforcement in civil construction engineering, and discloses a building concrete mixing pile which comprises a grouting vehicle, the top of the grouting vehicle is fixedly connected with a power mechanism, the output end of the power mechanism is fixedly connected with a slurry conveying pipeline, the outer wall of the slurry conveying pipeline is fixedly connected with a mixing mechanism, and the mixing mechanism is fixedly connected with the grouting vehicle. A partition plate is fixedly connected to the inner wall of the grouting vehicle, a grouting mechanism is fixedly connected to the top of the partition plate, a controller is arranged outside the grouting vehicle, the stirring mechanism comprises a drill rod, the inner wall of the drill rod is fixedly connected to the outer wall of the slurry conveying pipeline, a first spiral blade is fixedly connected to the outer wall of the drill rod, and a second spiral blade is fixedly connected to the outer wall of the first spiral blade. And the bottom of the drill rod is detachably connected with a stirring head. According to the utility model, the construction quality and efficiency of the concrete mixing pile are ensured, the stable improvement of the foundation reinforcement effect is realized, meanwhile, the construction time and cost are reduced, and the device is suitable for wider geological conditions.

The invention discloses a circulating slurry online deslagging system for a desulfurization process, and relates to the technical field of liquid deslagging. According to the deslagging system, a filter screen is arranged at an inlet of a circulating slurry pipeline to block large-particle impurities; a deslagging shunting pipe with a built-in functional sieve plate, an air nozzle and a spoiler is arranged at an outlet of a circulating pump, and after circulating slurry is subjected to solid-liquid separation through the deslagging shunting pipe, liquid is conveyed to a desulfurization reactor and finally returns to a desulfurization system; and the solid is conveyed to the online slag removal device for further solid-liquid separation through vibration of the vibrator and scouring of the slurry, the separated slurry flows back to the desulfurization system, the waste slag is conveyed to the waste slag collection box, and finally online slag removal of the circulating slurry is completed.

The present application discloses a kind of slurry pipeline energy dissipation orifice plate, including flange assembly, wear-resistant piece, shell and winding gasket;Flange assembly includes two pieces of flange arranged axially symmetric, flange adopts neck butt welding convex surface type, neck is fixedly sealed with slurry pipeline, and the outer periphery of two flanges is connected by fastening connector;Shell and wear-resistant piece are both hollow annular structure, and the section of both is L type, and the middle annular structure with cavity is formed after being combined, and is clamped in the middle by two flanges, and the diameter of the cavity of two flanges is greater than the diameter of the cavity of middle annular structure;Shell has different thickness, aperture and chamfer, and can realize the close assembly with wear-resistant piece;The inner angle of shell is round angle;Winding gasket is circular, and is arranged on the connecting surface of flange and shell, wear-resistant piece;Also disclose corresponding method and system, through energy dissipation main road and energy dissipation bypass, the flexible selection of commonly used energy dissipation system and standby energy dissipation system can be guaranteed;Reduce blockage, improve the wear resistance and service life of system;Meet the stable operation of energy dissipation station under different working conditions.

The invention relates to the technical field of slurry pipeline transportation, in particular to a water circulation pulping device and method for long-distance slurry pipeline transportation, and the device comprises a pulping and head end pump station subsystem, a terminal dehydration and pump station subsystem, a plurality of intermediate pump station subsystems, a water return pipeline network, a valve group control system and a system control unit; according to the system, a water circulation closed-loop system is constructed, a valve group control system and a water return pipeline network cooperate, a traditional one-way slurry conveying pipeline is transformed into a two-way switchable circulation system, and a system control unit is assisted for intelligent decision making and scheduling; the terminal dehydrated water does not need to build a traditional water treatment facility for up-to-standard discharge, but returns to the head end through a long distance in a step-by-step reverse pumping or independent continuous conveying mode; the problems that in long-distance slurry pipeline conveying, water resources are consumed in a one-way mode, waste is serious, and the terminal water treatment cost is high are solved, internal closed-loop cyclic utilization of the water resources is achieved, and the water resources are saved.

The invention relates to the technical field of mineral geological exploration equipment, and discloses geological structure drilling equipment for mineral exploration, which comprises a drilling assembly, the drilling assembly comprises a drilling cylinder assembly, a core tool assembly is fixedly sleeved in the drilling cylinder assembly, and the bottom end of the drilling cylinder assembly is fixedly connected with a drill bit assembly. The drill barrel assembly comprises a straight-barrel drilling tool, four feeding ports are formed in the side face of the bottom end of the straight-barrel drilling tool, four slurry pipelines are fixedly connected to the inner side of the straight-barrel drilling tool, flow deflectors are fixedly connected to the bottom ends of the four slurry pipelines, the core tool assembly comprises a coring barrel, four sliding strips are arranged on the side face of the coring barrel, and the flow deflectors are fixedly connected to the bottom ends of the four slurry pipelines. The four sliding strips correspond to the four sliding rails, fixing pieces are fixedly connected to the two sides of the top end of the coring barrel, one ends of the two fixing pieces are fixedly connected to the side face of the connecting rod, and the problems that in the slurry injection process, slurry easily invades a rock core, consequently, mineralized fluid samples are distorted, and coring quality defects are caused are solved.

The invention discloses a slurry pipeline wall thickness detection and energy dissipation system which comprises a host, a probe module, a support, a temperature compensation sensor, an energy dissipation pore plate and a pressure-bearing shell. An energy dissipation pore plate through which slurry can pass is embedded in the circular hole channel of the pressure-bearing shell; a through mounting hole is formed in the pipe wall on one side of the pressure-bearing shell; the bracket is erected in the mounting hole, and the probe module is mounted on the bracket; the temperature compensation sensor is integrated inside or near the probe module; the host is connected with the probe module and the temperature compensation sensor in a wired or wireless mode, the host dynamically calculates the sound velocity according to the temperature interval by means of sound velocity temperature segmentation fitting, and meanwhile, the wall thickness of the energy dissipation pore plate is detected through electromagnetic coil impedance compensation temperature correction. The purpose of pipeline energy dissipation can be achieved, and the thickness of the energy dissipation pore plate can be detected in real time; the influence of temperature on sound velocity and electromagnetic characteristics is corrected in a wide temperature range, and the temperature adaptability and precision of wall thickness detection are improved.

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

The invention relates to the field of thermal power generating unit energy storage media, and discloses a coal water slurry system for rapid load increasing of a coal-fired unit, and the coal water slurry system is coupled to a pulverized coal furnace of the coal-fired unit. Comprising a water-coal-slurry preparation system, a water-coal-slurry storage system, a water-coal-slurry conveying system and a water-coal-slurry burner which are sequentially connected together through a water-coal-slurry pipeline. The direct-fired pulverizing system of the pulverized coal furnace is coupled with the coal water slurry energy storage system, so that the direct-fired pulverizing system is fully used for providing fuel, energy is quickly released through the energy-stored coal water slurry system, and the load is quickly increased. The load can be increased to a numerical value required by a power grid in a short time, and meanwhile, stable combustion of the boiler is kept.

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

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

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

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

The utility model provides a supporting device for a tunneling machine disassembling and assembling machine, a tunneling machine main machine and a tunneling machine, and belongs to the technical field of tunneling equipment. The supporting device comprises a main supporting frame, and the main supporting frame is provided with a connecting structure detachably connected with a shield body rear partition plate and a hoisting structure used for hoisting the supporting device. The main supporting frame is further provided with a pipe clamp fixing position for fixing a pipe clamp for a mud pipeline, a control box installation position for directly installing an electric control box or an installation plate fixing position for fixing an installation plate for the electric control box, and a valve group installation position for directly installing a hydraulic control valve group or a supporting plate fixing position for fixing a supporting plate for the hydraulic control valve group. According to the utility model, equipment such as an electrical control box, a hydraulic control valve group, a slurry pipeline and the like can be mounted on the supporting device in advance, and then the supporting device is integrally hoisted in place and fixed on a shield body rear partition plate, so that many field fixing operations are omitted, and the mounting efficiency is improved; and the whole supporting device is directly lifted away during disassembly, so that the disassembly efficiency is improved, and the construction cost is reduced.

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

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

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

The invention discloses a maintenance-free online measurement system and method for key parameters of desulfurization slurry of a power plant, an outlet of a desulfurization slurry pipeline is divided into two paths after passing through a desulfurization slurry electromagnetic valve, one path is communicated with an inlet of a ceramic membrane filter, and the other path is communicated with a flushing water pipeline through a conventional flushing water electromagnetic valve; the flushing water pipeline is communicated with a water outlet of the ceramic membrane filter through the backwashing water electromagnetic valve, the water outlet of the ceramic membrane filter is communicated with an inlet of the chloride ion flow cell, and a water outlet of the chloride ion flow cell is communicated with an inlet of the pH flow cell; the pH flow cell is internally provided with a pH selective electrode, the chloride ion flow cell is internally provided with a chloride ion selective electrode, the system and the method can realize real-time measurement of chloride ions and pH of slurry, and the accuracy and the stability are relatively high.

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

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

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

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

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

The invention discloses a gypsum crystallization promoting device, and relates to the technical field of gypsum crystallization, the gypsum crystallization promoting device comprises a desulfurization tower, the lower side of the rear end of the desulfurization tower is communicated with an induced draft fan flue, the upper side of the rear end of the desulfurization tower is penetrated by a circulating slurry pipeline, the upper end of the desulfurization tower is communicated with a chimney flue, and the lower side of the front end of the desulfurization tower is penetrated by an oxidation air pipeline. The lower side of the front end of the desulfurization tower communicates with a slurry discharge pipeline, the slurry discharge pipeline is located on the lower side of the oxidation air pipeline, the front end of the circulating slurry pipeline is connected with a rotating assembly, and the circulating slurry pipeline is connected with a plurality of inclined square wide pipes through the rotating assembly. The desulfurizing agent is diffused and jetted in an umbrella shape. And the spiral turbofan is driven by the fluid to drive the slapping plate to rotate to mechanically slap the desulfurizing agent, so that liquid drops are further refined, the coverage range is expanded, the contact with flue gas is strengthened, and the absorption efficiency of sulfur dioxide is improved.

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

The invention discloses a flue gas pretreatment system for a biomass blending combustion boiler, and belongs to the technical field of environmental protection. The device comprises a flue gas washing tower, a flue gas detergent preparation tank and a slurry treatment system, a flue inlet channel is arranged on the lower portion of the side wall of the flue gas washing tower, a flue gas outlet is formed in the top of the flue gas washing tower, and a rotational flow guide plate, a first spraying washing pipe, a turbulent flow washing assembly, a baffle plate demister and a superfine demister are sequentially installed in the flue gas washing tower from bottom to top. The rotational flow guide plate is located above the inlet flue, a slurry outlet of the flue gas washing tower is communicated with the first spraying washing pipe, the turbulent flow washing assembly and the slurry treatment system through a slurry main pipeline and branch slurry pipelines, and the flue gas washing agent preparation tank is communicated with the branch slurry pipelines. And the flue gas detergent preparation tank pumps a flue gas detergent into the first spray washing pipe and the turbulent flow washing assembly. According to the invention, the biomass blending combustion flue gas is subjected to multi-stage cooperative treatment, so that harmful substances in the flue gas are removed, and the flue gas is more suitable for ammonia desulfurization.

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

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