154 results about "Sedimentation process" patented technology

The invention relates to the technical field of blood separation, in particular to a platelet concentration-based gravity separation system, which comprises a tension disturbance extraction module, a viscosity response positioning module, a sedimentation retarding judgment module, a platelet export judgment module and a concentration layer interface output module. According to the method, real-time extraction of tension change frequency and mutation amplitude is introduced, and a normalization processing mode of disturbance polymerization indexes is combined, so that a mechanical unstable area under tiny disturbance in the blood standing sedimentation process is effectively described, and the sensitive recognition capability on potential layered behavior changes is enhanced. Through continuous tracking of a viscosity behavior curve in a disturbance time period, an accurate time anchor point is provided for judgment of a subsequent liquid column motion state. On the basis of microscopic changes of the liquid column height and the rate, through combined judgment of the acceleration change trend and the attenuation amplitude, the settlement state is distinguished no longer depending on a macroscopic parameter threshold value, but is dynamically regulated and controlled through the change trend and a fluctuation sequence.

The utility model discloses a sewage treatment sludge discharge device with a stirring mechanism, which comprises a top platform, a stirring adjusting component and a self-cleaning component, a support frame is arranged at the top of the top platform, and adjusting motors in the stirring adjusting component are symmetrically arranged at the top of the support frame. A stirring mechanism of the device is composed of a stirring motor, a conveying strip and a stirring frame, the stirring frame is driven by the stirring motor to rotate, a flocculation agent added by a feeding pump is more rapidly mixed in a water body, meanwhile, the position of the stirring frame is adjusted in cooperation with a stirring adjusting assembly, the mixing speed of stirring is increased, the flocculation and sedimentation process is accelerated, and the flocculation and sedimentation efficiency is improved. The sewage treatment efficiency of the device is improved; colloidal particles are condensed into large particles, the large particles settle to the bottom of the water body and become sludge which can be accumulated at the bottom end of the interior of the treatment shell, the deposited sludge is scraped into the sewage draining exit through the self-cleaning assembly to be discharged, the automatic sludge discharging effect is achieved, manual participation in the sludge discharging process is not needed, and the practicability of the device is improved.

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 invention discloses a coal slime water sedimentation treatment method based on dynamic agent addition and intelligent monitoring. The method comprises the following steps: sample collection and pretreatment; pre-preparing a medicament and testing the suitability; adding a dynamic agent; the sedimentation process is optimized; real-time monitoring and feedback control are carried out; and treating after settling and recovering clear liquid. By monitoring the turbidity and the settling time of the slime water in real time and dynamically adjusting the dosage of the medicament, the problems of over-high medicament consumption and non-uniform settling effect caused by fixed medicament dosage in the prior art are effectively solved. And through precise medicament management, the medicament cost is remarkably reduced, and the resource utilization efficiency is improved. Through the design of the multi-stage sedimentation tank and the sectional sedimentation technology, the sedimentation efficiency is improved, the sedimentation space is fully utilized, the sedimentation time is shortened, and an excellent sedimentation effect is achieved. Due to the design of the multi-stage sedimentation tank, the flexibility and adaptability of the sedimentation process are enhanced, the device is suitable for different slime water characteristics, and the overall sedimentation efficiency is improved.

The invention relates to the technical field of intelligent sampling, in particular to an unmanned aerial vehicle water sediment intelligent sampling method and system based on rotational flow sorting, and the method comprises the following steps: collecting disturbance trajectory and rotational flow data, identifying a stable inlet, screening an alignment interval, executing screen mesh alignment, and generating a sampling record. According to the method, stable section calibration is formed by superposing wind speed direction fluctuation and rectifying plate track change, the screening range is locked to an alignment interval in combination with multi-parameter mapping of the rotating speed and the particle density, and the sediment movement state is captured in a layered mode in a deposition layer through a screen; a whole-process sampling sequence is constructed by a collaborative time sequence of rectification action and screen operation, so that real water disturbance characteristics can be dynamically extracted, sediment movement rules can be matched, the sampling trigger response accuracy is improved, and the screening alignment precision under multi-factor coupling is enhanced; the target section is accurately captured under the interlaced interference of the airflow disturbance and the particle settling process, and the particle layered structure is stably kept.

The invention discloses a method for leaching valuable elements in silicate rare earth ore, and belongs to the technical field of rare earth metallurgy. According to the method, the valuable elements in the rare earth concentrate are efficiently leached by adopting the processes of low-temperature sulfating intensified roasting, clinker hydrometallurgy, leached ore pulp flocculation and filter cake washing. The strengthened low-temperature sulfating roasting process avoids the problems of high energy consumption, serious equipment corrosion, low rare earth leaching rate and complex waste gas treatment (SO2 escape) of a traditional process, meanwhile, silicate rare earth ore decomposition is achieved, the effect of a back-end leaching process is remarkably improved, compared with an acid pickling process, the hydrometallurgy process reduces the acid consumption and the wastewater treatment difficulty, and the production cost is reduced. The leaching ore pulp flocculating settling process is beneficial for improving the industrial production efficiency, the filter cake washing process is beneficial for further improving the leaching rate of valuable elements, the silicate rare earth ore concentrate resources are utilized to the maximum extent on the premise of being environmentally friendly, and a technical path is provided for industrial utilization of silicate type rare earth ore.

The invention discloses a riverbed sediment particle analysis method and a related device, and relates to the technical field of hydraulic engineering and sediment testing.The method comprises the steps that firstly, the light intensity penetrating through a preset plane at each moment in a plurality of moments in the riverbed sediment sample sedimentation process is obtained; the preset plane is any one of the horizontal planes except the highest horizontal plane and the lowest horizontal plane in a sample container filled with the riverbed sediment uniformly-mixed suspension, riverbed sediment with different particle sizes in the riverbed sediment sample settles to the preset plane at different settling speeds, and for each particle size, based on the light intensity penetrating through the preset plane at each moment, the light intensity of the riverbed sediment in the riverbed sediment sample is calculated. Calculating to obtain the percentage of the sand weight smaller than the particle size, based on each particle size and the percentage of the sand weight smaller than the particle size, obtaining the grain composition and the grain composition curve, and further calculating the vertical line average grain composition, the section average grain composition and the section average particle size. According to the method, the particle analysis of the riverbed sediment can be accurately completed.

The invention relates to a preparation method and application of high-performance spinnable mesophase pitch based on a hydrogenation modification and segmented thermal sedimentation process, the preparation method comprises the following steps: mixing coal pitch and a hydrogenating agent according to a mass ratio of 1: 3-1: 4, and carrying out high-temperature and high-pressure hydrotreating at 350-450 DEG C to prepare hydrogenated pitch; heating the hydrogenated pitch to 390-420 DEG C in an inert atmosphere, keeping the temperature for 5-8 hours, and naturally cooling to obtain initial mesophase pitch containing an anisotropic phase; grinding the primary mesophase pitch, placing the ground primary mesophase pitch in a graded sedimentation device, preserving heat at 370-400 DEG C for 0.5-3 hours to enrich macromolecular components at the lower part, quickly cooling, and collecting a middle sample to obtain target mesophase pitch suitable for spinning; by accurately controlling the temperature, time and atmosphere, hydrogenation, phase change and graded enrichment of the pitch are realized, and finally the high-quality mesophase pitch for spinning is prepared.

The utility model belongs to the technical field of waste liquid treatment, and particularly relates to a waste liquid decrement treatment device of on-line detection equipment, which comprises a sedimentation tank and waste liquid separation decrement equipment of the on-line detection equipment, two fixing rods are fixedly connected to the top of the sedimentation tank; the two fixing rods are oppositely arranged; electric push rods are fixedly connected to the end parts of the two fixed rods; the output end of the electric push rod is fixedly connected with a first screen; a plurality of push rods are fixedly connected to the bottom of the first net plate; a collecting box is mounted at the bottom of the settling pond; the collection box is arranged in the sedimentation tank; a plurality of supporting rods are fixedly connected to the middle of the collecting box; a second screen is hinged to the middle of the supporting rod; every two second net plates are oppositely arranged; the push rod is arranged at the position corresponding to the second screen plate; a second net plate is opened under enough pressure, and precipitated suspended matters can be effectively collected, so that the efficiency of the precipitation process of the suspended matters in the waste liquid is effectively improved, liquid and the suspended matters in the waste liquid can be effectively separated through a collection box, and the amount reduction condition of the waste liquid can be monitored on line.

The present invention discloses a device and method for simulating the water flow and sedimentation process in a river channel in an arid area. The simulation device comprises an experimental water flume, a river channel simulation component, a first water tank, and a second water tank. At least one drainage outlet is provided at the downstream end of the experimental water flume. The river channel simulation component is arranged in the experimental water flume, and comprises a first simulation layer and a second simulation layer stacked in sequence in an up-down direction. The first simulation layer is paved with finely crushed walnut shells and has a channel with a water inlet near the upstream end and a water outlet near the downstream end. The second simulation layer is paved with gravel. The first water tank is filled with water and is connected to the water inlet of the channel through an inlet pipe. Part of the water flowing into the channel flows to the downstream end, and the other part seeps into the second simulation layer. The second water tank is connected to the drainage outlet of the experimental water flume through the outlet pipe. In this way, the process of the width and depth of a river channel in an arid area decreasing as it moves downstream can be simulated.

The invention discloses a suction anchor and a positioning mechanism thereof. The suction anchor comprises a barrel, a balancing weight, a limiting disc, a first inner pipe, a second inner pipe, a rotating plate, an elastic piece, a clamping piece, a communicating hose and a pull rope. A second inner pipe moving downwards enables a rotating plate to automatically clamp a limiting disc and drive a balancing weight to move upwards, after the balancing weight moves to a high height, the rotating plate makes contact with a T-shaped rod, the bottom of the rotating plate relieves clamping of the limiting disc, and therefore the balancing weight moves downwards, a positioning plate is knocked under the action of the balancing weight, the downward sedimentation process of the whole barrel is accelerated, and the service life of the barrel is prolonged. The injection efficiency is accelerated; meanwhile, an air pump is used for inflating through a communicating hose, so that the balancing weight quickly descends to impact the positioning plate, and the penetration efficiency is further enhanced; the balancing weight knocks the positioning plate under the action of downward movement of gravity and air pressure, on one hand, the barrel rapidly descends, on the other hand, the balancing weight knocks the inserting rod, the inserting rod goes deep into the seabed, and the positioning and stabilizing effect is improved.

The application discloses a ship-mounted in-situ calibration device and method for a seabed suspended sediment concentration profile probe, which comprises a cylindrical water tank main body, an ASM and a support frame thereof, a driving motor, a rotating paddle, a cylindrical support, a water pump and a valve. The method comprises the following steps: horizontally arranging the ASM in the water tank through the support frame; extracting in-situ seawater on the ship deck for calibration by using the water pump; driving the paddle by the motor to uniformly mix the water sample; and extracting the water sample by opening the water extraction valve at different time intervals, wherein the water extraction valve is arranged on the side of the water tank and is consistent with the measurement elevation of the ASM, is used for extracting the water sample at the same elevation of the ASM, and tests the consistency of each sensor of the ASM. The water sample concentration can well cover the in-situ concentration range under normal circumstances by sampling at different time intervals in the static water sedimentation process. The in-situ seawater is extracted on the spot for calibration, so that the difference between the particle size range and the concentration range of the sediment suspension liquid prepared in the laboratory and the actual observation station is avoided.

The utility model discloses an agricultural drinking water pretreatment device which comprises a device shell, a coagulating sedimentation cavity is arranged in the device shell, the coagulating sedimentation cavity comprises a flocculation cavity, a water distribution cavity and a filler cavity, the flocculation cavity and the filler cavity are respectively positioned on two sides of the coagulating sedimentation cavity, a plurality of flocculation plates are arranged in the flocculation cavity, and the water distribution cavity and the filler cavity are respectively positioned on two sides of the coagulating sedimentation cavity. The flocculation plate is provided with a plurality of flocculation holes, the flocculation holes are uniformly distributed in the flocculation plate, the top of the flocculation cavity is provided with a first through hole, the first through hole is connected to the water distribution cavity, and the water distribution cavity is provided with a second through hole and is connected to the filler cavity; through the structures such as the coagulating sedimentation cavity and the flocculation plates, the efficient coagulating sedimentation process is realized, the removal effect of impurities such as suspended solids in drinking water is greatly improved, and the treatment quality of the drinking water is remarkably improved.

The present invention discloses a deep-sea mining plume treatment device and method based on bottom suction flocculation, which includes a bottom suction flocculation tank, a pump suction transfer tank, a spiral bottom suction unit, a primary flocculation spraying unit, a secondary flocculation spraying unit and a control system. The interior of the bottom suction flocculation tank is divided into a flocculation chamber and a bottom suction chamber by a partition board. A plume suction port is arranged outside the bottom suction flocculation tank, and the plume suction port is communicated with the interior of the bottom suction chamber. The spiral bottom suction unit is arranged in the bottom suction flocculation tank, and the pump suction transfer tank is arranged at the upper rear of the bottom suction flocculation tank, and a suction pump is arranged at the upper part of the rear side thereof. The primary flocculation spraying unit includes a first flocculation storage tank and multiple groups of first nozzles, and the first nozzles are arranged at the bottom of the flocculation chamber. The secondary flocculation spraying unit includes a second flocculation storage tank and multiple flocculation spraying pipes, and two groups of second nozzles are arranged on each of the flocculation spraying pipes. The plume collection of the present invention is complete and sufficient, the flocculation and sedimentation processes are carried out continuously, the mixing is fully and evenly, the sedimentation efficiency is high, the generation of secondary plumes is avoided, and a better sedimentation effect is achieved.

The invention relates to the technical field of wastewater treatment, in particular to a coagulating sedimentation medium, a preparation method thereof and a wastewater treatment method. The coagulating sedimentation medium is prepared from the following raw materials in parts by weight: 4 parts of waste for synthesizing cubic zirconia, 0-2 parts of brown aluminum oxide and 0-4 parts of quartz sand. The coagulating sedimentation medium provided by the invention not only has an adsorption effect but also has an acceleration effect on rotational flow sedimentation due to the difference of centrifugal force in the sedimentation process of treating wastewater, so that the sewage treatment time can be shortened, and the water quality fluctuation impact can be coped with.

The invention discloses an antimony and manganese removal water treatment system and method based on feedforward-feedback control, and belongs to the technical field of water treatment. When the antimony concentration of inflow water is abnormal, pH pre-adjustment is carried out through an acid adding device before coagulation, after the pH is precisely reduced to a target value, an iron salt coagulant is added, antimony is removed through coagulation and precipitation procedures, the pH is adjusted back through an alkali adding device before filtration, and it is ensured that the effluent water reaches the standard. And when the manganese concentration of the settled water exceeds the standard, synchronous removal of manganese is realized by utilizing the adsorption effect of specific filter sand in the filter tank. According to the method, the detection device and the control system are integrated, the feed-forward-feedback mechanism is used for optimizing pH regulation and control and agent adding in real time, the problems that in a traditional method, pH control is difficult, low-concentration antimony removal is unstable, the manganese adsorption capacity is limited and the like are effectively solved under the condition that a process unit does not need to be newly added, cooperative, efficient and stable removal of antimony and manganese is achieved, and the method is suitable for large-scale industrial production. And the discharged water continuously meets the limit value requirements of the Sanitary Standard for Drinking Water.

The present invention discloses a flocculation and sedimentation device for recovering electroplating wastewater, which relates to the technical field of wastewater treatment and includes a wastewater treatment tank body; through the arrangement of the upper baffle plate and the lower baffle plate, the flocs are prevented from floating upward. In the flocculation process, a flocculant needs to be added to promote the formation of flocs from pollutants. If the flocs float upward and are discharged with the supernatant liquid, it means that the flocculant is also carried away. Avoiding this situation can make the flocculant play a more sufficient role, reduce the dosage of the flocculant, and thus reduce the treatment cost. In addition, when the flocs can effectively aggregate and settle instead of floating and being lost, the entire flocculation and sedimentation process can be completed faster, avoiding affecting the wastewater treatment efficiency. Additionally, the purpose of the flocculation process is to remove pollutants in the water. If the flocs float into the supernatant liquid and are discharged, it will cause some pollutants not to be completely removed, thus affecting the water quality of the effluent. Avoiding this situation can reduce the residues of pollutants such as suspended solids, organic matter, and heavy metals in the water.

The present invention relates to a method for classifying the genetic types of seepage barriers in deep-sea waterways, and belongs to the technical field of geological exploration for oil and gas field development. The present invention discloses a method for classifying the genetic types of seepage barriers in deep-sea waterways, comprising obtaining the sedimentation process, scale, lithology, distribution location, and gravity flow genetic type of the deep-sea waterway; classifying the genetic types of the seepage barriers in the deep-sea waterway into landslide-induced seepage barriers, debris flow-induced seepage barriers, low-density turbidite-induced seepage barriers, and semi-pelagic sediment-induced seepage barriers based on the gravity flow genetic type of the deep-sea waterway; and further finely classifying the genetic types of the seepage barriers in combination with the lithology, scale, distribution location, and sedimentation process of the seepage barriers. The present invention fills the gap in the classification scheme of the genetic types of seepage barriers within deep-sea waterways, thereby providing important geological basis and guidance for the evaluation of the continuity and connectivity within the reservoirs of deep-sea waterways.

This application relates to the field of water treatment technology and discloses a method for defluoridating fluoride-containing wastewater. The method includes introducing fluoride-containing wastewater from the bottom into a crystalline granulation fluidized bed filled with natural garnet seed crystals, thus fluidizing the seed crystals. Simultaneously, calcium chloride solution and sodium hydroxide solution are pumped in from the side and below to adjust the Ca / F molar ratio and pH value of the reaction system, promoting an induced crystallization reaction between fluoride ions and calcium ions in the aqueous phase on the surface of the garnet seed crystals to precipitate calcium fluoride. After the reaction stabilizes, the treated water is discharged from the top of the bed to obtain defluorinated effluent. This method addresses the homogeneous nucleation phenomenon in the aqueous phase caused by high influent fluoride concentration shocks, and combines this with subsequent coagulation and sedimentation processes to remove suspended particles. This application overcomes the shortcomings of traditional sedimentation methods, which easily generate loose flocs, achieving a stable transfer of fluoride to a dense solid phase, effectively reducing the production of water-containing sludge, and ensuring the quality of the effluent from the defluoridation system under high load fluctuations.

The utility model relates to energy-saving and consumption-reducing equipment for a sewage treatment plant, which comprises a bracket arranged in a sedimentation tank; the rotating disc is rotationally arranged on the support, the rotating disc is provided with a plurality of abutting protrusions, and the abutting protrusions are circumferentially arranged on the rotating disc at intervals; the material storage box is arranged on the bracket, and the material storage box is used for storing a flocculating agent; the sliding plate is arranged on the material storage box in a sliding mode, the material storage box is provided with an abutting protrusion, the sliding plate is used for opening or closing the opening after sliding on the material storage box, the sliding plate is provided with an abutting end, and after the rotating disc rotates on the support, the abutting protrusion is used for abutting against or not abutting against the abutting end. The flocculating agent adding device has the advantages that the problems that in the prior art, stirring needs to be conducted for a long time after flocculating agents are added, certain mechanical equipment needs to be adopted for adding the flocculating agents, and consequently the energy consumption in the sewage treatment and sedimentation process is large are solved.

This invention relates to the field of car wash water treatment technology. The invention provides a car wash water treatment device, comprising a wash bay, a sedimentation tank, a wastewater tank, a cyclone separator, and a clear water tank. The wash bay is used to accommodate cars, wash and clean them, and collect the wash water. The sedimentation tank is connected to the wash bay and is used to accommodate the wash water discharged from the wash bay and to settle impurities in the wash water. The sedimentation tank has an overflow outlet. The wastewater tank is connected to the overflow outlet of the sedimentation tank and can accommodate the wash water overflowing from the overflow outlet. The cyclone separator is connected between the wastewater tank and the clear water tank, and can separate the wash water in the wastewater tank into clear water and transport the clear water to the clear water tank. This technical solution solves the technical problems of poor water purification effect and high energy consumption in the sedimentation process of related car wash water treatment devices.

This invention discloses a method for producing alcohol-based suspensions for produced water, comprising multiple steps including selecting alcohol-based solvents, adding dispersing agents, adding functional solid particles, precisely adjusting the pH value of the system, thorough mixing and homogenization, and filtration and purification. The alcohol-based suspension produced by this invention has uniformly dispersed internal solid particles and a large specific surface area, exhibiting extremely strong adsorption and capture capabilities. It can rapidly adsorb fine suspended particles, emulsified oils, organic impurities, and other pollutants in produced water, showing significant treatment effects on produced water with high solids content and high oil content. The removal rate of suspended solids can reach over 90%, and the removal rate of oil pollutants can reach over 85%, far superior to traditional flocculation and sedimentation processes. The treated water quality can meet discharge standards or be reused.

The invention provides a separation device for gas reservoir exploitation, and belongs to the technical field of gas reservoir exploitation. Comprising a tank body, the top of the tank body is fixedly connected with a feeding pipe and an exhaust pipe, the bottom of the tank body is fixedly connected with a water drainage pipe, an oil drainage pipe and a cooperative driving mechanism, and the cooperative driving mechanism is used for processing emulsion in fluid and connected with the tank body and the feeding pipe. According to the device, the cooperative driving mechanism is arranged, so that fluid can be automatically layered after entering the tank body, the time for mutual sedimentation and layering of a gas phase, an oil phase and a water phase is shortened, the fluid separation efficiency of the device is improved, and before the fluid enters the space between the first partition plate and the second partition plate, emulsion is treated and demulsified, and the separation efficiency is improved. And the fluid is more efficient in the sedimentation process, and the quality of the treated fluid is higher.

The utility model provides a flocculation sedimentation tank for sewage treatment, which belongs to the technical field of sedimentation tanks and comprises a sewage treatment sleeve, the top end of the sewage treatment sleeve is fixedly connected with a first connecting sleeve, and the inner walls of two sides of the first connecting sleeve are rotatably connected with reciprocating screw rods. One side end of the first connecting sleeve is fixedly connected with a second motor, when a convex wheel rotates, a semicircular sleeve is periodically jacked up, the semicircular sleeve slides up and down on the inner wall of the sewage treatment sleeve by virtue of elastic supporting force provided by six springs, and the action is beneficial to loosening and removing blocked impurities adhered in screen meshes of a filter screen; according to the sewage treatment device, the blockage phenomenon is effectively prevented, and meanwhile, the impurity separation effect is enhanced, so that the smooth proceeding of the sewage treatment process is guaranteed, and convenience is provided for subsequent impurity treatment.

The application discloses a flocculation-sedimentation experiment system which can consider the influence of biological factors, wherein, in the flocculation system, the transparent flocculation device is arranged in a flocculation incubator, the flocculation incubator is used for providing controllable water body turbulence, illumination and temperature conditions for a silt flocculation process, and a flocculation body development measuring device is used for measuring the development of the flocculation body in the transparent flocculation device in real time; in the sedimentation system, a transfer device is used for transferring the flocculation body at different development stages in the transparent flocculation device to the transparent sedimentation device for sedimentation, the transparent sedimentation device is arranged in a sedimentation incubator, the sedimentation incubator is used for providing controllable illumination and temperature conditions for the flocculation body sedimentation process, and a sedimentation speed observation device is used for observing the sedimentation speed of the flocculation body in the transparent sedimentation device in real time. The application can consider the influence of biological factors on the silt flocculation and sedimentation process, realize the control of various environmental variables, and accurately simulate the flocculation-sedimentation behavior of the silt population in the silt-containing water body without interference.

The invention provides an ore pulp desliming and desilting beneficiation method and system based on lithium ore. The method comprises the following steps that ore pulp is subjected to ore grinding and grading treatment, and an ore grinding and grading overflow product is obtained; sequentially carrying out multiple times of desliming and desilting operations on the ore grinding and grading overflow products through the hydraulic hydrocyclones for multi-stage desliming, so as to obtain silt tail slurry products and underflow ore slurry products discharged by the hydraulic hydrocyclones for desliming at all stages; and carrying out tailing treatment on the sediment tail slurry product. According to the multistage desliming hydrocyclone, under the multiple centrifugal effects, the purposes of desliming, desilting and beneficiation of ore pulp are achieved in a grading mode, desliming, desilting, stable product quality and large output yield can be achieved in a grading mode, meanwhile, the desliming and desilting quality of the ore pulp after grading can be guaranteed, and on the premise that the beneficiation quality of the ore pulp is guaranteed, the beneficiation quality of the ore pulp is guaranteed. The production goals of high efficiency, energy conservation and environmental protection are achieved, and the explosion risk and the blocking risk of a conveying pipeline and a self-flowing pipeline in the sedimentation process of mineral particles in the high-concentration ore pulp are avoided.

The present invention provides a method and system for numerical simulation of carbonate rock deposition, comprising the following steps: step 1, constructing a planar grid model including multiple grid points based on the actual study area; step 2, obtaining environmental physical parameters, population parameters, and the population size of each grid point at the current deposition simulation time, and determining the current population size of each grid point at the current deposition simulation time based on a Generalized Lotka-Volterra model applicable to multiple species; step 3, determining the carbonate rock deposition thickness based on a carbonate rock vertical yield model; step 4, determining the depositional topography at the previous deposition simulation time, and obtaining the current depositional landform; step 5, using the current depositional landform as the depositional topography at the next deposition simulation time, using the current population size as the population size at the next deposition simulation time, and repeating steps 2 to 4 until the deposition simulation ends. The present invention improves the rationality and accuracy of numerical simulation of carbonate rock deposition.

The utility model belongs to the technical field of sewage treatment, and discloses sewage mud-water separation treatment equipment for ceramic production, which comprises a sewage storage barrel, an annular shell is fixedly connected to the top end in the sewage storage barrel, and a plurality of sections of electric telescopic rods are mounted in the annular shell; a mounting block is fixedly connected to the output end of the multi-section electric telescopic rod, a filtering layer is mounted in the mounting block, a telescopic feeding pipe is fixedly mounted at the top end of the filtering layer, a water outlet valve is mounted at the bottom end of the surface of the sewage storage barrel, and a water flowing pipe is fixedly connected to the end face, away from the sewage storage barrel, of the water outlet valve. The multi-section electric telescopic rod pushes the filter layer to move downwards, so that sediments in sewage are blocked when the filter layer moves downwards, then the filter layer can intercept large-particle suspended solids in the sewage, and the long sedimentation process of the sewage in the sewage treatment equipment is reduced.

The utility model discloses a stepped efficient thickener with a partitioned pretreatment device. Relates to the technical field of solid-liquid separation equipment, and comprises a thickener and a pretreatment device communicated with the thickener, the pretreatment device is used for flocculation, and the thickener is used for sedimentation; the pretreatment device comprises a main body, a stirring device is arranged in the main body, the top of the main body is provided with a liquid inlet chute for materials to enter and a feeding pipe for a flocculant to enter, the bottom of the main body is provided with a discharge port, the side wall of the upper part of the main body is provided with a supernatant overflow port, the middle of the main body is provided with a liquid discharge port, and the liquid discharge port is communicated to the inside of the thickener through a conveying pipeline; according to the efficient thickener, flocculation and sedimentation processes can be carried out in different areas, the thickening efficiency is improved, the occupied area of the thickener and equipment type selection are remarkably reduced, the energy consumption and the environmental influence are further reduced, and the operation flexibility, the maintenance convenience and the like are improved.

The invention relates to the technical field of sewage treatment, and particularly discloses an integrated high-density sedimentation tank with sludge external circulation, which comprises a support bracket, a cavity, a water inlet pipe, a blow-off pipe and a partition plate, and is characterized in that a separation part is arranged outside the cavity, and the separation part generates eddy current in a separation shell through forward and reverse rotation of paddles, so that the separation part is separated from the water inlet pipe and the blow-off pipe; sludge is enriched and concentrated on the surface of the collecting piece, then high-density sludge is sent back to the top of the cavity through a return mechanism to form a sinking sediment blanket, and therefore the sedimentation process of sewage is accelerated, chemical flocculants do not need to be added, the sedimentation speed and efficiency are remarkably improved, and the operation cost is reduced.