48results about "Sedimentation tanks" patented technology

One or two continuous recirculation loops are utilized for the well-site equipment that separates produced fluids into sand, liquid, and gas during drill out and flow back that occurs after fracturing a subterranean formation. When one recirculation loop is utilized, the recirculation loop continuously recirculates fluid between the recirculation chamber of the disclosed sand removal apparatus and a shaker device. When two recirculation loops are utilized, the first recirculation loop continuously recirculates fluid between a recirculation chamber of the disclosed sand removal apparatus and a shaker device, and the second recirculation loop continuously recirculates fluid between the recirculation chamber and a gas separator.

The invention discloses a sewage treatment system in shield construction of a subway tunnel, which relates to the technical field of sewage treatment and comprises an equipment bridge secondary sedimentation tank, a sixth trolley secondary sedimentation tank, a fifth trolley secondary sedimentation tank, a wellhead three-stage sedimentation tank and a ground three-stage sedimentation tank which are sequentially connected together through pipelines from front to back, sewage collected at the shield tail passes through the equipment bridge secondary sedimentation tank, the sixth trolley secondary sedimentation tank, the fifth trolley secondary sedimentation tank, the wellhead three-stage sedimentation tank and the ground three-stage sedimentation tank. According to the sewage treatment system in shield construction of the subway tunnel, graded sedimentation of silt is achieved through a five-stage sedimentation system, compared with a traditional single-stage sedimentation mode, the silt carrying amount is remarkably reduced, the risk that a blow-off pipeline is blocked is effectively avoided, in addition, through the combined mode of annular water film protection and self-rotating spray head breaking, secondary pollution in the desilting process is prevented, and the sewage treatment efficiency is improved. And the sludge crushing efficiency is improved.

To provide a waste water treatment method and a waste water treatment apparatus.SOLUTION: A method includes a first flocculation sedimentation step and a second flocculation sedimentation step. The first flocculation sedimentation step includes stages of: generating primary treatment water by allowing waste water including fluorine and phosphorus to pass through a first flocculation reaction tank; generating secondary treatment water by allowing the primary treatment water to pass through a second flocculation reaction tank; generating tertiary treatment water by allowing the primary treatment water to pass through a third flocculation reaction tank; generating quaternary treatment water by allowing the tertiary treatment water to pass through a fourth flocculation reaction tank; and generating quinary treatment water and a sludge by allowing the quaternary treatment water to pass through a first settling tank. The second flocculation sedimentation step includes stages of: generating senary treatment water by allowing the quinary treatment water to pass through a fifth flocculation reaction tank; generating septenary treatment water by allowing the senary treatment water to pass through a sixth flocculation reaction tank; generating octonary treatment water by allowing the septenary treatment water to pass through a seventh flocculation reaction tank; and generating nonary treatment water and a sludge by allowing the octonary treatment water to pass through a second settling tank.SELECTED DRAWING: Figure 1

This invention discloses a layered, decelerating phase change separator, comprising: a hollow cylinder with a first liquid outlet at the top and a second liquid outlet at the bottom; an inlet pipe extending through the cylinder; an outlet hole on the outer wall of the inlet pipe; multiple phase-separating structures installed in the inlet pipe and disposed within the cylinder; the multiple phase-separating structures are spaced apart along the length of the inlet pipe; each phase-separating structure includes a bend, and at least one bend in the phase-separating structure located at the bottom of the cylinder has a through hole penetrating the phase-separating structure; a guide pipe connected to the phase-separating structure; the guide pipe extends downward to the bottom of the cylinder, and its two ends are respectively connected to the through hole and the second liquid outlet. The layered, decelerating phase change separator according to this invention can achieve efficient phase separation of the phase change absorbent.

A neutralization / water separation tank for an esterified product according to an embodiment of the present invention for achieving the above object includes: a neutralization part in which a crude product mixture containing alcohol and an ester compound, a neutralizing agent, and water are put to produce a neutralized mixture; a water separation part which divides the neutralized mixture into a floating layer and an aqueous layer; a first partition wall which extends upward from a bottom surface to provide an upper passage and by which the neutralization part and the water separation part are partitioned; and a second partition wall which extends downward from a ceiling to provide a lower passage, wherein the water separation part includes: a first water separation part into which the neutralized mixture is introduced from the neutralization part through the upper passage; and a second water separation part into which the neutralized mixture is introduced from the first water separation part through the lower passage, wherein the first water separation part and the second water separation part are partitioned by the second partition wall.

The invention belongs to the field of sludge resource utilization, and particularly relates to a high-speed train excrement collector wastewater sludge reduction and resource utilization device, system and method. The device comprises a septic tank and a sludge fermentation tank which are sequentially connected, the interior of the septic tank is of a grid structure, a water inlet pipe and a water outlet pipe are arranged on the upper portion of the side wall of the septic tank, and a water ejector used for collecting sludge in different grids of the septic tank is further arranged above the septic tank; the bottom of the sludge fermentation tank is provided with an inclined bottom wall and a fermentation tank inner spray head used for spraying sludge upwards, the sludge fermentation tank is internally provided with a division baffle used for limiting the sludge from flowing along a turn-back type flowing path, and a sludge flowing and settling channel is formed between the division baffle and the inclined bottom wall. According to the method, resource utilization of the excrement collection type wastewater sludge is realized, the treatment cost of the sludge is saved, the potential risk of the sludge to the environment is reduced, sludge reduction and resource utilization are realized, the number of equipment is reduced, the operation cost is low, the operation is simple, and the raw materials are cheap.

Device (200) for cleaning grey water containing particulate material, comprising a container (201) in turn comprising a water entry (202); a slurry exit (204); a cleansed water exit (203); and a sedimentation volume (220). The invention is characterised in that the container further comprises a flocculant provision means, arranged to add a flocculant (212) to grey water entering via the water entry, so that grey water having entered said sedimentation volume after such adding contains said flocculant, in that the flocculant provision means comprises a vertical chute (213) arranged to convey, via gravity, said grey water from an upper part of said container to be released via an open lower end (215) of the chute into said sedimentation volume at a height of at the most 1 m above a bottom (221) of said sedimentation volume, the chute having a cross-sectional area of at least 0.1 m2. The invention also relates to a method.

The present invention relates to the technical field of sewage treatment, and particularly relates to a regulating reservoir for sewage treatment, which has the function of fishing floating objects, always pumps the relatively clean sewage near the liquid surface, reduces the agitation and scouring of the sludge deposited at the bottom, has high water regulation efficiency and good usability; it includes a primary pool, an inlet pipe is installed on the primary pool, and regulating chamber one is communicated with regulating chamber two; it also includes a floating tank, a collection tank, a sludge pump one, a front baffle, a turning motor and a fishing rake. The floating tank floats on the sewage liquid surface in the secondary pool. The floating tank is provided with an overflow tank and a collection tank. The sludge pump one is installed on the floating tank, and the inlet pipe of the sludge pump one extends into the bottom of the overflow tank. Multiple overflow tank holes are arranged in the upper part of the front baffle, and the overflow tank holes extend below the sewage liquid surface. The turning motor is installed on the collection tank, the output shaft of the turning motor is connected with the fishing rake, and multiple rake teeth are arranged on one side of the fishing rake, and the multiple rake teeth respectively extend into the multiple overflow tank holes of the front baffle.

The invention discloses a wobble plate core of a wobble plate thickener, which belongs to the technical field of wobble plate thickeners and comprises a wobble plate and wobble plate unit supporting strips, the wobble plate and the wobble plate unit supporting strips are connected in a joggle joint mode, the wobble plate unit supporting strips support the wobble plate and form a wobble plate sedimentation unit, and the wobble plate sedimentation unit is connected with the wobble plate through a connecting piece. The inclined plate is of a flat plate structure formed by a modified polymer polypropylene plate, the inclined plate unit supporting strips are of a frame structure formed by modified polyvinyl chloride, and each inclined plate unit supporting strip comprises a side edge strip structure and a middle partition strip structure. According to the technical scheme, the inclined plate core has various properties of strength, toughness, corrosion resistance, high temperature resistance, acid and alkali resistance and the like, the adaptability of the inclined plate core to treatment of materials with different characteristics is achieved, the service life of the inclined plate core is guaranteed, meanwhile, the materials can be prevented from being bonded on the surface of the inclined plate, and the inclined plate core can be produced according to requirements.

The rainwater treatment device may include a direct-current sedimentation device having a treatment channel defined by a pair of angled plates provided at a supplementary angle between the angled plates and disposed between a front baffle and a rear baffle. The front baffle has a treatment channel opening, and the rear baffle has a treatment channel outlet. Under normal flow rates, rainwater flows in a direct-current pattern into the inlet, then into the inlet chamber, through the treatment channel opening into the treatment channel, through the treatment channel outlet into the outlet chamber, and deposits are dropped from the suspension through an opening at the bottom of the pair of angled plates and out of the direct-current sedimentation device.

Land-based treatment plant (10) for purifying wastewater from aquaculture facilities, comprising a cleaning basin (12) with inlet (14) for wastewater from one or more aquaculture facilities and outlet (16) for discharge of purified water. The cleaning basin (12) comprises a flow rectifier (24) located downstream of said inlet (14) for waste water, which flow rectifier (24) is adapted to unidirect a low-speed water flow into a sedimentation chamber (18) in the cleaning basin (12), and that a bottom (18a) in the sedimentation chamber (18) comprises filter orifices (28), as particles, related to their sinking speed, fall towards the bottom (18a) and are drawn towards the filter orifices (28), whereupon sludge / sludgy water is collected in an underlying collection chute (30) connected to a sedimentation tank (32) arranged for receiving said sludge / sludgy water.

The invention discloses a combined three-stage sedimentation tank and a working method, and belongs to the technical field of construction wastewater treatment. The combined type three-stage sedimentation tank comprises a first column of tank bins and a second column of tank bins, water inlet holes are formed in the front ends of the two columns of tank bins, water outlet holes are formed in the tail ends of the two columns of tank bins, the first column of tank bins are composed of three chambers which are connected in series, and the second column of tank bins are single tank bins. Drainage holes are formed between the three chambers of the first column of tank bins and the single tank bin, drainage holes are also formed among the three chambers, and all the water inlet holes, the water outlet holes and the drainage holes are provided with water stop valves. According to the combined type three-stage sedimentation tank, through the multi-bin conversion design, online alternate operation can be achieved, uninterrupted continuous operation of the whole sedimentation system is guaranteed, whole-line discharging stopping is avoided, the remarkable energy-saving effect is achieved, and the requirement for green construction is met.

One or two continuous recirculation loops are utilized for the well-site equipment that separates produced fluids into sand, liquid, and gas during drill out and flow back that occurs after fracturing a subterranean formation. When one recirculation loop is utilized, the recirculation loop continuously recirculates fluid between the recirculation chamber of the disclosed sand removal apparatus and a shaker device. When two recirculation loops are utilized, the first recirculation loop continuously recirculates fluid between a recirculation chamber of the disclosed sand removal apparatus and a shaker device, and the second recirculation loop continuously recirculates fluid between the recirculation chamber and a gas separator.

The invention relates to a wastewater treatment method and a wastewater treatment device. The disclosed wastewater treatment method comprises a first coagulative precipitation process and a second coagulative precipitation process which are continuously performed, and the first coagulative precipitation process comprises the following steps: wastewater passes through a first coagulative reaction tank to generate primary treatment water S10-2; enabling the primary treated water to pass through a third coagulation reaction tank to generate tertiary treated water S10-4; enabling the tertiary treated water to pass through a fourth coagulation reaction tank to generate quaternary treated water S10-6; the fourth-stage treated water passes through a first sedimentation tank to generate fifth-stage treated water and sludge S10-8; the second coagulating sedimentation process comprises the following steps: passing the fifth-stage treated water through a fifth coagulating reaction tank to generate sixth-stage treated water S20-2; enabling the sixth-stage treated water to pass through a seventh coagulation reaction tank to generate eighth-stage treated water S20-4; and enabling the eight-stage treated water to pass through a second sedimentation tank to generate nine-stage treated water and sludge S20-6.

A stormwater treatment device may include a crossflow settling device having a treatment channel defined by a front baffle, a rear baffle, and a pairs angled plates provided at supplementary angles therebetween and disposed between the front baffle and the rear baffle, the front baffle having a treatment channel opening and the rear baffle having a treatment channel outlet. Under normal flow, stormwater flows into the inlet and into the inlet chamber, into the treatment channel via the treatment channel opening, into the outlet chamber via the treatment channel outlet in a crossflow pattern causing the sediment to fall out of suspension, and out of the crossflow setting device through openings at the bottom of the pairs of angled plates.

The present invention relates to the technical field of wastewater sedimentation, and specifically discloses a modular multi-stage sedimentation tank and an assembly method. The modular multi-stage sedimentation tank includes multiple groups of tank one with the same structure and connected in sequence, and tank two connected and communicated with tank one; the tank one includes a bottom plate one, two groups of side plates one arranged in parallel and installed on the bottom plate, and an end plate one located between the two groups of side plates one and respectively connected to the two groups of side plates one; the end plate one and the two groups of side plates one cooperate to form a cavity one with an opening on the side away from the end plate one; in adjacent two groups of tank one, the end plate one of one group of tank one is installed at the opening of the other group of tank one and cooperates to form a sedimentation cavity one. And its assembly method is also disclosed. The present invention can be freely assembled according to the need of construction wastewater sedimentation, greatly improving the demand for construction wastewater sedimentation. At the same time, it can be assembled on the construction site, making transportation more convenient. After use, it can be stored and recycled with a high turnover rate.

A cleaning system includes a planar material beneath a soiled grow table. The planar material is non-porous except for a drain. Above the planar material is a plate layer including at least two layers of runners arranged in a grid where each successive layer is offset at an angle with respect to the grid of a previous layer. The plate layer rests upon the non-porous material. An upper layer covers the plate layer and has a plurality of holes. A roller table is provided for slideably supporting the grow table. Nozzles are positioned over the grow table and is / are interfaced to a pump for receiving and spraying liquid from the pump downwardly towards the grow table. The liquid and impurities (e.g., soil, leaves) fall to the upper layer and through the plurality of holes for cleaning and filtering the liquid before the liquid is returned to the pump.

The invention relates to a three-stage sedimentation tank system capable of fully automatically discharging sewage. The three-stage sedimentation tank system comprises a first sedimentation tank, a second sedimentation tank and a third sedimentation tank which are connected in sequence, the horizontal conveying pipelines are arranged at the bottoms of the sedimentation tanks and are communicated with the interiors of the sedimentation tanks; the horizontal spiral conveyer is arranged in the horizontal conveying pipeline; the vertical conveying pipeline is arranged on the outer side of the third sedimentation tank and is in sealed connection with the horizontal conveying pipeline; the vertical screw conveyor is arranged in the vertical conveying pipeline and is in transmission connection with the horizontal screw conveyor; the self-suction type non-clogging sewage pump is arranged at the top of the third sedimentation tank and is connected with the vertical screw conveyer; the sediment surface height sensing devices are arranged on the inner walls of the sedimentation tanks and are used for detecting the heights of sediment surfaces in the first sedimentation tank, the second sedimentation tank and the third sedimentation tank. According to the invention, the height of the sediment surface in each sedimentation tank can be rapidly detected in time through the arranged sediment surface height sensing device, so that the self-suction type non-clogging sewage pump can be started in time to discharge sediment.

The method for treating wastewater includes a first flocculation-and-sedimentation process and a second flocculation-and-sedimentation process, wherein the first flocculation-and-sedimentation process include: passing wastewater through a first flocculation reaction tank; passing the first treated water through a third flocculation reaction tank; passing the third treated water through a fourth flocculation reaction tank; and passing the fourth treated water through a first sedimentation tank to generate fifth treated water and sludge, and the second flocculation-and-sedimentation process include: passing the fifth treated water through a fifth flocculation reaction tank to generate sixth treated water; passing the sixth treated water through a sixth flocculation reaction tank to generate sixth treated water; passing the sixth treated water through a seventh flocculation reaction tank to generate eighth treated water; and passing the eighth treated water through a second sedimentation tank to generate ninth treated water and sludge.

A stormwater treatment device may include a crossflow settling device having a treatment channel defined by a front baffle, a rear baffle, and a pairs angled plates provided at supplementary angles therebetween and disposed between the front baffle and the rear baffle, the front baffle having a treatment channel opening and the rear baffle having a treatment channel outlet. Under normal flow, stormwater flows into the inlet and into the inlet chamber, into the treatment channel via the treatment channel opening, into the outlet chamber via the treatment channel outlet in a crossflow pattern causing the sediment to fall out of suspension, and out of the crossflow setting device through openings at the bottom of the pairs of angled plates.

The invention discloses a multi-stage cutting fluid filtering device for metal processing, which is connected in a cutting fluid circulation loop of applicable equipment, and comprises a rough filtering unit, a fine filtering unit, a temperature adjusting unit, a temperature control unit and a monitoring system which are connected in sequence, and each unit comprises a settling tank and a filter screen box arranged in the settling tank, a magnetic attraction structure is arranged in each filter screen box, the temperature adjusting unit and the temperature control unit are provided with a temperature adjusting device and a temperature control device respectively, and the monitoring system controls the temperature adjusting device and the temperature control device in a grading mode according to temperature detection values. The integrated design of series connection of four stages of modular settling tanks is adopted, the purification efficiency is remarkably improved through cooperation of gradient adsorption and triple filtration, the content of metal components in the cutting fluid is reduced by 30% or above compared with a traditional single-stage purification system, and the purification efficiency is improved by 25%; through innovative graded temperature control, the temperature fluctuation of output cutting fluid is smaller than or equal to + / -0.5 DEG C, the precision is improved by two times compared with that of a traditional system, and energy consumption is reduced by 15%.

The invention relates to the technical field of desilting basins, in particular to a tandem type funnel-shaped desilting basin which comprises a plurality of basin bodies composed of short arc-shaped basin walls, long arc-shaped basin walls and conical basin bottom walls, conveying channels are connected to intervals of the ends of the basin bodies and used for communicating the adjacent basin bodies, and the bottoms of the conical basin bottom walls are communicated with a desilting mechanism. The sand discharging mechanism comprises a sand storage bin, a first ball valve, a second ball valve and other components, part of the conveying channels are provided with acceleration pumps, the sand discharging mechanism is further provided with a driving motor, related transmission components and the like, and the diameters of the pool bodies are sequentially increased in the water flow direction. According to the device, the purposes of effectively achieving silt separation treatment, facilitating silt discharging and storage and improving the desilting efficiency and the treatment effect are achieved.

One or two continuous recirculation loops are utilized for the well-site equipment that separates produced fluids into sand, liquid, and gas during drill out and flow back that occurs after fracturing a subterranean formation. When one recirculation loop is utilized, the recirculation loop continuously recirculates fluid between the recirculation chamber of the disclosed sand removal apparatus and a shaker device. When two recirculation loops are utilized, the first recirculation loop continuously recirculates fluid between a recirculation chamber of the disclosed sand removal apparatus and a shaker device, and the second recirculation loop continuously recirculates fluid between the recirculation chamber and a gas separator.

A lamina (1) for a purifier having a plate (5), the plate (5) having linear longitudinal ribs (10) extending from an upper end portion (5a) of the plate (5) to a lower end edge (5d) thereof, linear longitudinal folds (15) having wings (40) and interposed between each pair of the ribs to form a protrusion (30) with a V-shaped wall protruding in the sagittal direction (S), an upper end transverse fold (20) in the upper end portion (5a) defining a flat portion (20a) extending rearward in the sagittal direction (S) to the upper end edge (5c), and a lower end transverse fold (60) curved rearward in the sagittal direction (S).

Disclosed is a lamella (1) for a clarifier, comprising a plate (5) provided with: longitudinal straight ribs (10) extending from the top part (5a) of the plate (5) to the bottom edge (5d), and longitudinal straight folds (15) provided with wings (40) and which are interposed between each pair of ribs (10) to form projections (30) with V-shaped walls that project in the sagittal direction (S); a top transverse fold (20) provided in the top part (5a), which defines a flat portion (20a) extending backwards towards a top edge (5c); and a bottom transverse fold (60) that curves the bottom part (5b) backwards.

A method for collecting mill scale from a hot rolling mill is provided. The hot rolling mill includes a flume. The method includes transporting mill scale particles in wastewater, retrieving the wastewater from a flume of the hot rolling mill and separating the mill scale particles from the wastewater using a separator. A hot rolling mill and a method for retrofitting a hot rolling mill are also provided.

The present invention discloses a continuous ethylene selective polymerization device and method. The device and method feed ethylene through a feed nozzle arranged on the wall of the reactor and regularly wash the polymer attachments on the inner surface of the reactor with a high-pressure solvent jet; the reaction liquid after quenching is subjected to two-stage sedimentation, and the upper clear liquid directly enters the subsequent distillation separation unit, thereby realizing continuous operation; the slurry with high insoluble content in the lower layer after precipitation and concentration is discharged from the system in a centralized manner, and then solid-liquid separation is performed, thereby avoiding the problems of easy filter blockage, ineffective backwashing, frequent switching, difficult cleaning, and influence on continuous operation when filtering directly in a continuous and high-pressure system. The present invention provides a solution to the insoluble ethylene polymers produced by side reactions during continuous ethylene selective polymerization, thereby realizing long-term continuous and stable operation of the device.

A lamella for a clarifier, including a plate provided with longitudinal straight ribs extending from the top part of the plate to the bottom edge, and longitudinal straight folds provided with wings and which are interposed between each pair of ribs to form projections with V-shaped walls that project in the sagittal direction. A top transverse fold provided in the top part, which defines a flat portion extending backwards towards a top edge. A bottom transverse fold that curves the bottom part backwards.

The invention relates to the related technical field of slurry circulation tanks, in particular to a slurry circulation tank which comprises a circulation tank body and a dredging mechanism, the circulation tank body is of a rectangular box body structure, a liquid inlet is formed in the front side end face of the circulation tank body, and a liquid outlet is formed in the rear side end face of the circulation tank body; a first-stage sludge accumulation hopper, a second-stage sludge accumulation hopper, a third-stage sludge accumulation hopper and a fourth-stage sludge accumulation hopper are integrally formed on the bottom surface of the circulating tank body and are all arranged in a hopper shape; the first-stage silt accumulation hopper, the second-stage silt accumulation hopper, the third-stage silt accumulation hopper and the fourth-stage silt accumulation hopper are arranged on the bottom face of the circulating tank body, and the desilting mechanism is formed by combining a silt accumulation pipe, a piston, a telescopic air cylinder, a first-stage sealing plate and a second-stage sealing plate, so that the desilting mechanism can achieve continuous desilting work; and the water content in the discharged sludge can be reduced, so that the utilization rate of water can be effectively improved while the dredging effect is ensured.

A neutralization / water separation tank for an esterified product including: a neutralization part in which a crude product mixture containing alcohol and an ester compound, a neutralizing agent, and water are put to produce a neutralized mixture; a water separation part which divides the neutralized mixture into a floating layer and an aqueous layer; a first partition wall which extends upward from a bottom surface to provide an upper passage and by which the neutralization part and the water separation part are partitioned; and a second partition wall which extends downward from a ceiling to provide a lower passage, wherein the water separation part includes: a first water separation part into which the neutralized mixture is introduced from the neutralization part through the upper passage; and a second water separation part into which the neutralized mixture is introduced from the first water separation part through the lower passage, wherein the first water separation part and the second water separation part are partitioned by the second partition wall.