69 results about "Settling" patented technology

The invention belongs to the technical field of sediment particle size monitoring, and particularly relates to a sediment particle size monitoring device for river flow monitoring, which comprises at least three conical barrels sequentially sleeved from left to right, and the outer barrel wall of the conical barrels sequentially sleeved from left to right is in non-contact design with the other outer barrel wall. Meshes formed in the cylinder wall of the conical cylinder located on the left side are located in the conical cylinder located on the right side, the diameters of the meshes formed in the cylinder walls of the three conical cylinders from left to right are sequentially decreased, and a particle size monitoring assembly is detachably installed at the cylinder opening of the conical cylinder located on the leftmost side through a supporting mechanism; the at least three conical barrels are installed in a river channel to be monitored in a settling mode through the supporting settling assemblies. The monitoring device provided by the invention not only can be used for monitoring the particle size of the sediment particles mixed in the river, but also can be used for collecting and sampling the monitored sediment particles in a grading manner, so that the application range of the monitoring device provided by the invention can be widened.

The invention relates to the technical field of foundations or underground or underwater structures, in particular to an offshore wind turbine single pile foundation anti-scouring stabilizing device which comprises a single pile body, a buffering assembly and a stabilizing assembly, and the buffering assembly is arranged outside the single pile body in a sleeving mode; a settling hemisphere is arranged in the stabilizing assembly, the spherical surface of the settling hemisphere is located on one side of a seabed, the bottom of the buffering assembly is coaxially connected with the upper surface of the settling hemisphere, the bottom of the single pile body penetrates through the settling hemisphere and then is inserted into the seabed, and an adjusting disc is movably connected to the outer upper surface of the settling hemisphere. A plurality of drainage plates are evenly connected to the outer portion of the adjusting disc at intervals and inserted into the seabed. The problem that long-term stable supporting of the single pile body cannot be effectively guaranteed in the prior art is solved.

The invention relates to filtering and settling combined equipment in the technical field of spiral discharging, in particular to filtering and settling combined equipment of a horizontal concentration filtering spiral discharging centrifugal machine. The device comprises a centrifugal device, a feed opening is formed in the top of the centrifugal device close to one end, and a discharge opening is formed in the bottom of the centrifugal device close to the other end; a settling assembly is fixedly arranged at the end part of the discharge hole; and a filtering assembly is arranged at one end of the settling assembly. The settling assembly is used for filtering the clarified liquid flowing out of the discharging opening, meanwhile, the filtering height in the settling assembly is adjusted along with the gravity of impurities intercepted in the clarified liquid, and when too many impurities are intercepted, the blocked impurities are automatically discharged; the filtering assembly is used for carrying out secondary filtering on the clarified liquid at the filtering part in the settling assembly, the filtering assembly is also used for separating and collecting the clarified liquid and impurities in the secondary filtering, and meanwhile, the filtering assembly is freely disassembled at the end part of the settling assembly, so that the filtering assembly is convenient to clean.

The utility model discloses flocculant-free high-temperature settling equipment, which belongs to the technical field of high-temperature settling and comprises a settling tank, and a central feeding well is arranged in the settling tank. A plurality of nozzles are distributed on the edge of the central feeding well, and each nozzle is connected with a feeding pipe; a feeding hole extending out of the side part of the settling tank is formed in the outer end of the feeding pipe; the center of the settling tank is connected with a stirring shaft, and the stirring shaft extends to the lower part of the settling tank through the central feeding well; the lower end of the stirring shaft is connected with a raking machine; and the stirring shaft is connected with a conical fluid director below the bottom opening position of the central feeding well. The device disclosed by the utility model can directly and quickly settle without temperature and pressure reduction operation and addition of settling promoters such as a flocculating agent and the like, so that the production cost is reduced, the organic flocculating agent is prevented from entering a production system to cause organic matters to pollute production materials, and the energy consumption is reduced.

The invention relates to a magnetic coagulation and sedimentation integrated device carrying a magnetic sedimentation technology. The magnetic coagulation and sedimentation integrated device comprises a water inlet reaction zone, an inclined tube sedimentation zone, a magnetic sedimentation zone, an oxidation zone and a magnetic recovery assembly, the water inlet reaction area comprises a water inlet reaction area first grid, a water inlet reaction area second grid, a water inlet reaction area third grid and a water inlet pipe; the inclined tube settling zone comprises an upper-layer long inclined tube, a lower-layer short inclined tube, a water outlet groove and a water inlet channel; the magnetic settling area comprises a traveling sludge discharging machine, an electromagnet and a mud baffle on the electromagnet; the oxidation zone comprises a first oxidation zone grid, a second oxidation zone grid, a third oxidation zone grid and a water outlet pipe; the magnetic recovery assembly comprises a magnetic separator, a high shearing machine, a sludge return pipe and a sludge discharge pipe. Compared with the prior art, the magnetic coagulation sedimentation, magnetic sedimentation, magnetic seed recovery and tail water oxidation technologies are integrated, the coagulation time is greatly shortened, and the starting time and the sedimentation time of the sedimentation device are shortened; the precipitation effect is improved; the sludge moisture content is reduced; the magnetic seed recovery rate is high.

The utility model relates to the technical field of settling ponds, in particular to a settling pond for industrial sewage heavy metal treatment, which comprises a settling pond, two guide rods are arranged in an inner cavity of the settling pond, a sliding plate is slidably sleeved outside the two guide rods, a stirring component is arranged on the sliding plate, supports are arranged on two sides of the outer wall of the settling pond, and the two sides of the outer wall of the settling pond are respectively provided with a stirring component. Traction assemblies are arranged in inner cavities of the two supports, fixing plates are arranged on the left side and the right side of the top end of the sliding plate correspondingly, the two traction assemblies are fixedly connected with the two fixing plates correspondingly, wheels are arranged at the four corners of the bottom end of the sedimentation tank correspondingly, and a plurality of connecting plates are arranged on the outer wall of the sedimentation tank. The sedimentation tank for industrial sewage heavy metal treatment solves the problems that a heavy metal sedimentation tank in the prior art is not provided with stirring equipment in the actual use process, sulfide and sewage added into the sedimentation tank cannot be mixed and stirred in the actual use process, and the heavy metal sedimentation time is long.

The invention relates to an aeration tank sludge sedimentation ratio prediction method and device based on autoregression decoding. The method comprises the following steps: arranging a sludge sedimentation observation container communicated with an aeration tank; introducing the mixed liquid of the aeration tank into an observation container, and capturing an image frame sequence of the mixed liquid in the observation container from a standing starting stage to a free settling stage; cleaning an observation container and discharging waste liquid, inputting an acquired image frame sequence into a sludge sedimentation ratio prediction model based on ResNet and autoregressive Transformer at the same time to obtain a predicted 30-minute sedimentation dynamic curve, and introducing a causal mask multi-head attention mechanism during prediction; and the prediction process is repeated after the aeration tank mixed liquid is introduced again. According to the method, the 30-minute SV value can be accurately predicted by capturing the short-time dynamic rule at the initial stage of sludge sedimentation, so that the response speed and accuracy of SV value monitoring are improved, and a support is provided for rapid and accurate regulation and control of a sewage treatment process.

This invention relates to the field of concentration devices, specifically to a high-efficiency, non-powered concentration device, comprising: a device body and an artificial platform fixedly installed on the top of the device body; and a water inlet fixedly located in the middle of the artificial platform, the lower end of which penetrates the artificial platform and extends into the interior of the device body. This invention, by setting a flow-stabilizing section (preferably a fan-shaped honeycomb filter) arranged circumferentially along the inner wall of the device body, enables the core solid-liquid separation process of this device to be achieved entirely through gravity settling and structural rectification. On the one hand, this creates a relatively static and stable hydraulic environment for the settling of solid particles, significantly reducing the interference of turbulence and short-circuiting on the settling process, thereby greatly improving the solid-liquid separation efficiency, especially the ability to capture fine particles. This results in low turbidity and clear water in the overflow supernatant, which can be directly reused in the production process, achieving efficient recycling of water resources. On the other hand, the overall energy consumption is extremely low, and the operating cost is significantly reduced.

The present disclosure relates to a downhole multi-stage spiral nested oil-water fine separation device; the device comprises a spiral settling module and a fine separation module; the spiral settling module utilizes a spiral flow channel to separate oil-water two-phase by cyclone layering, to make the central oil phase enter the upper oil pipe coupling from the oil phase outlet, and part of the water phase enters the coalescence plate below the settling separation area; the fine separation module performs secondary fine separation on the liquid phase containing a small amount of oil phase after separation by the spiral settling module, the separated oil phase is combined with the settled oil phase through the overflow pipe, and the separated water phase is discharged into the lower oil pipe coupling through the water phase outlet on the inverted cone. In the embodiment of the present disclosure, the coalescence unit comprising a plurality of coalescence plates is located inside the primary separation area, realizing the combination of cyclone, settling and coalescence in a small space, and the structure is simple and the energy loss is small, which is suitable for completing multi-stage fine separation of oil-water two-phase in the wellbore.

The present application relates to the technical field of coal slime dewatering, and discloses a stepless overflow liquid level adjusting device for a horizontal settling centrifuge, which comprises an end cover, a plurality of overflow ports on the end cover, a weir plate, an impeller disc and an adjusting gear, the weir plate has a plurality of weir plates corresponding to the number of the overflow ports, the weir plates are slidably arranged on the end cover and used for controlling the opening degree of the overflow ports, the weir plate bottom is provided with engaging teeth, a vortex sliding groove is formed on one side of the surface of the impeller disc, the vortex sliding groove is matched with the engaging teeth, the circumferential surface of the impeller disc is provided with gear teeth, and the adjusting gear is rotatably arranged on the end cover and matched with the gear teeth. Through the above technical scheme, the problems of complicated operation and low precision in adjusting the overflow liquid level height in the prior art are solved.

The utility model discloses a device for improving the efficiency of a horizontal flow precipitation separation process based on turbulent laminar flow and shallow pool precipitation, which relates to the technical field of water purification treatment and comprises a bottom fixing support fixedly connected to the bottom of an inverted V-shaped folded plate, and a side fixing support fixedly connected to the side of the inverted V-shaped folded plate. According to the device for improving the efficiency of the horizontal flow precipitation separation process based on turbulent laminar flow and shallow pool precipitation, n layers of inverted V-shaped folded plates are arranged in the horizontal flow pool in the water depth direction, so that the pool depth forms n + 1 layers, a multi-layer parallel horizontal flow precipitation pool is formed, according to the shallow pool precipitation theory, the precipitation efficiency can be improved to n + 1 times compared with that of a conventional horizontal flow pool, and the efficiency of the horizontal flow precipitation separation process is improved. One or more layers of inverted V-shaped folded plates are mounted close to the bottom of the pond, so that the hydraulic flow state of the bottom of the pond is changed, the hydraulic turbulence at the bottom is reduced, the Reynolds number is reduced, and the water flow at the bottom tends to laminar flow, thereby inhibiting the bottom mud from floating due to turbulence. The stability of the precipitation effect is ensured. And secondary muddy water return of the precipitated water is avoided.

This utility model relates to the field of sedimentation device technology and discloses a self-cleaning sedimentation device, including two base plates. Three rows of connecting plates are arranged inside the two base plates on the side close to each other. Multiple inclined plates are fixedly connected to the side of each group of three connecting plates that are close to each other. The side of each group of two connecting plates that are far from each other is fixedly connected to the side of each group of two base plates that are close to each other. By setting three rows of connecting plates between the two base plates and fixing multiple inclined plates between each group of three connecting plates, and fixing multiple equidistant guide plates on the two inclined surfaces of the outer surface of the inclined plates, the particle settling distance can be shortened from several meters to several centimeters, which greatly increases the sedimentation area, reduces turbulence interference, guides the particle sliding path, increases the probability of particle collision, enhances the contact flocculation effect, promotes the formation of larger flocs and dynamic sludge layers, achieves efficient solid-liquid separation, and avoids the problems of low efficiency caused by long settling paths and water turbulence in traditional devices.

The invention relates to the technical field of coal slime water treatment, in particular to a method for measuring coal slime flocculation and settling velocity based on FBRM and PVM. The measuring method comprises the steps that coal slime water is placed in the sedimentation pipe, the observation hole is formed in the sedimentation pipe, the FBRM online particle instrument monitors the particle size and number distribution of coal slime particles at the height corresponding to the observation hole in the sedimentation process in real time through the observation hole, the sedimentation speed is calculated, and the particle video microscope PVM records a coal slime floc image through the observation hole. According to the method, the floccule form and the settling velocity in the coal slime water can be accurately measured in real time, errors and manual operation errors caused by off-line microscope analysis are avoided, the measurement precision is improved, and real-time synchronous association between the size change of the coal slime floccules and the settling velocity is achieved.

The utility model relates to the technical field of water purification plant canal transformation, in particular to a horizontal flow sedimentation tank which comprises a tank body and a flow collecting type sedimentation assembly, the flow collecting type sedimentation assembly comprises a water inlet cavity, a sedimentation cavity, a placement cavity, a water outlet cavity and a drainage cavity, the water inlet cavity is fixedly connected with the tank body and located on one side of the interior of the tank body, and the sedimentation cavity is fixedly connected with the tank body and located on the other side of the interior of the tank body. The water inlet cavity is fixedly connected with the pond body and located in the pond body, the sedimentation cavity is formed in one side of the water inlet cavity, the placement cavity is fixedly connected with the pond body and located in the pond body, the placement cavity is formed in the side, away from the water inlet cavity, of the sedimentation cavity, the water outlet cavity is fixedly connected with the pond body, the water outlet cavity is formed in the side, away from the sedimentation cavity, of the placement cavity, and the drainage cavity is fixedly connected with the pond body. The drainage cavity is formed in one side, far away from the placement cavity, of the water outlet cavity, and the flow-concentrating sedimentation assembly is additionally arranged, so that the problem that an existing horizontal flow sedimentation tank cannot effectively reach an expected critical settling velocity due to the critical settling velocity of particles is effectively solved.

The invention relates to the technical field of coal flotation, and particularly discloses a flotation tailing treatment method for strengthening middling coal sedimentation and rapid separation. According to the method, aiming at the problems of large fine coal ash fluctuation and low middling coal recovery rate caused by middling coal entrainment in the existing flotation process, a roughing-scavenging-concentration three-section separation process is coupled with a middling coal reflux concentration technology. Tailings generated by three-section flotation are specially treated, and sedimentation and aggregation of middling coal particles are strengthened by adding a flocculating agent into the tailings and introducing a middling coal separation hopper with an optimized structure; by improving the underflow discharging mode of the separation hopper, high-concentration medium coal slurry is rapidly discharged, and overflow returns to the scavenging section to recover residual clean coal. According to the method, stable control over the clean coal product quality and synchronous increase of the middling coal recovery rate are achieved, the technical bottleneck of a traditional mixing separation process is solved, and economic benefits are remarkable.

The invention belongs to the technical field of iron separation production, and particularly relates to an online mud layer interface measurement algorithm which comprises the following steps: S1, calculating layered reference conductivity including clear liquid layer reference conductivity, settling layer reference conductivity and mud layer reference conductivity; s2, judging whether a difference value between the reference conductivity of the clear liquid layer and the reference conductivity of the settling layer is greater than 2 or not so as to judge whether a mud layer and the settling layer exist in the settling tank or not, and calculating the position of the mud layer; s3, after the mud layer is calculated through the conductivity, the mud layer is calculated through pressure in an auxiliary mode, and the auxiliary measurement logic is as follows: when the first buoyancy becomes large, it is judged that clear liquid is entered; if the buoyancy increases for the second time and continuously increases, it is judged that the water enters the settling layer; after the buoyancy change is stable for the second time, entering the mud layer is judged. The invention can solve the problems that the conductivity basic value is small, the change fluctuation of different working conditions is large, and the boundary layer cannot be distinguished through the simple absolute value of the conductivity and the increase and decrease of the conductivity when the conductivity is measured by an online mud layer interface measuring device.

The utility model relates to the technical field of sedimentation tanks, and discloses a sedimentation tank with an efficient solid-liquid separation function, which comprises a sedimentation tank, and a water distribution component and a cleaning component are connected in the sedimentation tank; the water inlet distribution assembly comprises a flow stabilizing plate, a mounting groove is formed in one side of the settling box, the flow stabilizing plate slides in the mounting groove, and multiple groups of flow guide holes penetrate through the flow stabilizing plate; compared with the prior art, the sedimentation tank has the advantages that water flow can be uniformly distributed into the sedimentation tank, the impact of the water flow on a sedimentation area is reduced, a stable hydraulic condition is created for solid-liquid separation, and the separation stability of the sedimentation tank with the efficient solid-liquid separation function is improved; sludge deposited at the bottom of the settling tank can be removed in time, it is avoided that sludge accumulation occupies the effective volume, it is avoided that a solid-liquid separation path is blocked due to the fact that a sludge layer is too thick, and the separation efficiency of the settling pond with the efficient solid-liquid separation function is improved.

An air inlet (2) is tangentially formed in one side of the outer wall of the top of a spiral air inlet pipe (1), and the bottom of the spiral air inlet pipe (1) is connected with a cone (3); the bottom of the cone (3) is connected with an ash hopper (4), an air outlet (5) is formed in the middle of the upper end of the spiral air inlet pipe (1), an overflow cylinder (7) is communicated with the inner top of the spiral air inlet pipe (1), namely the lower side of the air outlet (5), and the lower end of the overflow cylinder (7) is communicated with an upturning cylinder (9) through an inner cylinder (8); a rotational flow cover (11) is arranged on the lower portion in the cone (3), namely the lower side of the lower port of the upturning cylinder (9), a synchronous impeller (13) is arranged in the lower port of the upturning cylinder (9), and the rotational flow cover (11) and the synchronous impeller (13) are coaxially connected through a connecting shaft rod (12). Solid particles in air flow are separated on line step by step through the outer rotational flow annular settling space and the inner rotational flow pressure reduction ascending space, backmixing is greatly restrained, rotational flow multi-link continuous separation is achieved, and ash deposition is prevented.

The invention discloses a device and a method for evaluating the separation effect of calcium sulfate in activated sludge, and relates to the field of mineral processing. The device comprises a feeding unit, a separation unit and a data acquisition and control unit. The method comprises the following steps: characterizing the property of the activated sludge; centrifugally settling the activated sludge under different flows, collecting settled sand in a container, drying, weighing, calculating the yield, and detecting the content of calcium sulfate at each stage; determining the most appropriate centrifugal acceleration according to the maximum difference between the calcium sulfate retention rate and the sludge content; and establishing a model according to the centrifugal acceleration, the operation parameters and the structure parameters of the cyclone and the corresponding particle size at the axial speed zero-speed enveloping surface, defining that the corresponding particle size at the position greater than the radius of the axial speed zero-speed enveloping surface enters the underflow, and predicting the underflow yield of the industrial cyclone in separating the calcium sulfate in the sludge under the centrifugal acceleration. According to the invention, the quick separation of the activated sludge and calcium sulfate mixture and the pre-guidance and optimization of the industrial cyclone are realized.

The utility model relates to a multi-channel liquid treatment device, which aims to solve the technical problems that sediments in a sediment box need to be scraped one by one and the operation is troublesome at present, and comprises the sediment box, a plurality of liquid pump bodies are arranged on the periphery of the sediment box, the liquid pump bodies are connected with the sediment box through pipelines, and the liquid pump bodies are connected with the sediment box through pipelines. The device further comprises a track and a scraping structure. The two rails are symmetrically and fixedly arranged on the two sides of the inner bottom wall of the settling box; the scraping structure is arranged between the two rails; the scraping structure comprises a transverse plate, a sliding block and a scraping strip; the two sliding blocks are fixedly arranged at the two ends of the bottom side of the transverse plate correspondingly. The sliding block is in sliding fit with a sliding groove formed in the rail. The scraping strip is arranged below the transverse plate; wherein the scraping strip is in contact fit with the inner bottom wall of the sedimentation tank, and the sedimentation tank has the advantages that sediments are integrally scraped along the inner bottom wall of the sedimentation tank, and the sedimentation tank is more efficient and convenient.

The utility model relates to the technical field of water treatment simulation, in particular to an adjustable multifunctional pilot test water treatment simulation device which comprises a settling tank and a mixing tank, an overflow port connected with the mixing tank is formed in one side of the top end of the settling tank, and a water outlet is formed in the side, away from the overflow port, of the top end of the settling tank. A water inlet pipe is arranged on one side of the mixing box, a metering pump used for accurately adding chemicals is arranged at the top end of the mixing box, two symmetrical sliding positioning pieces are installed on the inner side of the top end of the settling box, a plurality of baffles arranged at intervals are installed on the sliding positioning pieces, and a transparent side window is arranged on one side of the bottom end of the settling box. According to the utility model, the baffles with different numbers and intervals are arranged in the sediment box, and the baffles on the two sliding positioning pieces can form a continuous water flow movement channel, so that a tester can observe and record the sediment distribution condition from the outer surface of the side window.

The multifunctional barrage with the low water head, the sand setting function and the sand discharging function comprises a barrage body and a water inlet groove, the bottom of the water inlet groove comprises a first horizontal slope, a reverse slope and a second horizontal slope, and the top of the barrage body is provided with a sand discharging part and a water collecting part. The sand discharging part comprises two sand discharging valves and a water flow channel communicating the upstream and downstream of the barrage and vertically penetrating through the water inlet groove, the sand discharging valves are arranged on the two sides, located in the width direction of the water inlet groove, of the water flow channel and used for controlling water flow to enter the water collecting part or the downstream, and the two sand discharging valves are arranged at the top of the current stone-laying retaining wall close to the first horizontal slope; the water inlet groove and the sand discharging part are arranged at the top of the dam body, the reverse slope is arranged at the bottom of the water inlet groove, deposition of mud and sand at the water inlet can be reduced, the mud and sand are accumulated towards one side of the sand discharging part, meanwhile, the sand discharging part is provided with the sand discharging valve and the water flowing channel, and the deposited mud and sand can be discharged. The barrage has good sand setting and sand discharging functions, and daily management and protection are facilitated.

The invention relates to the technical field of crude oil dehydration methods and devices, in particular to a divergent coalescence double-rectifying-plate efficient dehydration device and method.Crude oil flows rightwards in a coalescence area in an S shape, namely S-shaped divergent flow channels are formed among coalescence balls distributed at intervals in a matrix mode in the fluid flowing direction, and when the crude oil flows through the S-shaped divergent flow channels, the crude oil flows through the S-shaped divergent flow channels under the action of buoyancy, and the crude oil is separated from the coalescence balls. Large oil drops formed by collision gradually float to the top of the coalescence area and then enter the settling area for settling separation. According to the divergent coalescence double-rectifying-plate efficient dehydration device, the S-shaped divergent flow channel is designed, large oil drops formed by collision can gradually float upwards to the top of a coalescence area under the action of buoyancy, fluid flow is not limited in a fixed flow channel space formed by different layers of corrugated plates any more, and therefore the collision probability of the oil drops is greatly increased, and meanwhile, the oil drops are prevented from falling off. Double rectifying plates are designed, the effect of rectifying, energy dissipation and vortex reduction is utilized, disordered flow in a settlement area is eliminated to the maximum extent, and separation and settlement time is shortened.

The utility model relates to the technical field of medical biology, and provides a flushing fluid purifying and stirring device which comprises a stirring tank, the outer surface of the stirring tank is fixedly connected with a supporting plate, the top end of the supporting plate is fixedly connected with a sediment box, the outer surface of the sediment box is fixedly connected with a water suction pump, a groove is formed in the bottom of the inner wall of the sediment box, and the bottom of the inner wall of the sediment box is fixedly connected with a water pump. The bottom of the outer surface of the groove is fixedly connected with two waste material pipes, and one-way valves are arranged in the two waste material pipes. When the device is used, flushing fluid is poured into the settling tank for settling, and after settling is carried out for a certain time, sediment can be settled at the bottom of the settling tank; then an electric push rod is started through an external power supply, the electric push rod pushes a cleaning plate to move at the bottom of the settling box, at the moment, sediments can be pushed into a groove, and after the sediments in the settling box are pumped out, a one-way valve can be rotated, so that the sediments are discharged from a waste material pipe.

The invention belongs to the technical field of oilfield water treatment, and particularly relates to a coagulating sedimentation device and method for oilfield produced water. The coagulating sedimentation device comprises a sedimentation box, a filter box and a dosing device are mounted at the top of the sedimentation box and are both communicated with the sedimentation box, a cutting pump is mounted at the top of the filter box, and an outlet of the cutting pump is communicated with the filter box. The oilfield produced water can be cut through the cutting pump, blockage of follow-up equipment due to too large impurities is avoided, water flow can be preliminarily filtered through the first filter plate, and the filtering effect of the oilfield produced water is improved. The dosing device can control the capacity of the adjusting box, and the usage amount of the flocculant is controlled according to the water flow capacity in the settling box. By arranging the lifting air cylinder, the height of the oilfield produced water drainage pipe can be adjusted, and a guarantee is provided for the precipitation filtering effect of oilfield produced water; precipitated impurities of oilfield produced water can be discharged out of the settling box through the dirt collecting groove and the auger mechanism, cleaning is convenient, and labor is saved.

The utility model provides a self-circulation rapid muddy water purification device, which belongs to the technical field of water treatment devices and comprises a main body, a first annular piece, a second annular piece and a third annular piece, the area between the second annular piece and the inner wall of the main body forms a settling area, and the area between the third annular piece and the inner wall of the main body and the outer side of the second annular piece forms a mud and sand settling area; an inlet of the mud and sand settling area is communicated with an external sewage source, and a sand body outlet of the mud and sand settling area is communicated with the outside of the main body; an outlet of the sludge concentration area is communicated with an inlet of the settling area; according to the scheme, after external sewage enters the mud and sand settling area, mud and sand in a water body are settled into the mud and sand settling area, the water body subjected to sand removal enters the sludge concentration area, and the water body subjected to sludge concentration enters the settling area.

The utility model discloses a stacked type sedimentation tank. The stacked type sedimentation tank comprises a sedimentation hopper main body, a plurality of groups of stacking modules are mounted at the top of the sedimentation hopper main body in a stacking manner, each stacking module comprises a tank body arranged at the top of the sedimentation hopper main body, a plurality of groups of inclined plates are mounted on two sides in the tank body, and split connecting flanges are arranged at the upper end and the lower end of the tank body; according to the utility model, the plurality of groups of stacking modules are mounted at the top of the sedimentation hopper main body in a stacking manner, so that the vertical space can be fully utilized, and due to the multi-layer accumulation design, the sedimentation area and the treatment space of the sedimentation tank are obviously increased under the condition that the occupied area of the sedimentation tank is not changed; the settling pond can contain more sewage and perform solid-liquid separation at the same time, so that the treatment capacity is greatly improved, the problem that the occupied area is too large when a traditional settling pond is used for treating large-flow sewage is effectively solved, the manufacturing and transportation cost can be reduced through the modular design, and then use by personnel is facilitated.

The invention provides a raw water pretreatment system which comprises a flocculation zone, a plug flow zone, a settling zone and a filtering zone which are communicated in sequence, the settling zone comprises a settling pond, a sediment discharging device and a sediment discharging auxiliary device, the sediment discharging device is located at the bottom of the settling pond, the sediment discharging auxiliary device is located in the settling pond, and the bottom of the inner side of the settling pond is of a hopper-shaped structure; the sediment discharge auxiliary device comprises a placing cavity, a connecting cavity, a rotating motor, a rotating roller, a plurality of sliding rods, a moving block, a plurality of springs, a plurality of connecting rods, a connecting block and a separator, and the placing cavity is located at the top of the inner side of the sedimentation tank and connected with the sedimentation tank. According to the invention, the bottom and the upper part of the sedimentation tank are effectively separated in the sediment discharge process by arranging the display board of the separator, so that sediment resuspension and disturbance caused by water flow or discharge operation are avoided, and sediment discharge is more sufficient.

The invention relates to the technical field of iron phosphate production, in particular to a ferrous settling tank which comprises a rack, a circular barrel and a conical barrel, the conical barrel is mounted on the rack, the top of the conical barrel is connected to the bottom of the circular barrel, and an annular support is arranged on the peripheral side of the bottom of the circular barrel. The annular support is provided with a power mechanism doing circular motion around the central axis of the circular barrel, a rotating part is arranged on the inner side wall of the bottom of the circular barrel, and an electromagnetic attraction assembly is arranged between the rotating part and the power mechanism and used for enabling the moving power mechanism to drive the rotating part. A filtering counterweight part is movably arranged at the inner bottom of the conical barrel; and a scraper strip is arranged between the rotating part and the filtering counterweight part. According to the ferrous settling tank, the power mechanism is started to drive the scraper strip to rotate along the inner circumferential inclined wall of the conical barrel, sediments attached to the inner circumferential inclined wall of the conical barrel are automatically cleaned, workers do not need to enter the settling tank for cleaning work, and the ferrous settling tank is time-saving, labor-saving and safe.

A novel method for preventing natural gas gathering and transportation freezing blockage comprises the following steps that (1) firstly, gas-liquid mixed fluid at a well head is subjected to basic phase separation through a separator, gas enters a gas channel, and liquid drops are separated out through rectification and gravity settling; liquid enters the liquid space, bubbles are separated out, and meanwhile, under the gravity condition, gas flows out of the gas outlet after liquid drops are removed through the mist catcher before the gas leaves the separator; (2) after the gas leaves the separator, methanol is continuously added in a dropwise manner, the mass percent concentration of the added methanol is 15-20%, and the addition amount of the methanol is related to the saturated water content in the natural gas; and (3) a filling mode: filling from the rear end of the separator, and continuously filling for 24 hours. By adopting the method, the problem of freezing blockage is solved, normal production of the gas well is prevented from being influenced by freezing blockage, and the gas production efficiency is improved.