22results about "Sedimentation tanks" patented technology

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.

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.

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 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 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.

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.

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.

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.

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 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.

In a sedimentation device for material contained in liquid, in particular rainwater, with a sedimentation insert (12) having a height axis (26) which is inserted into a shaft element (13) in the operating position, wherein the sedimentation insert (12) has an inlet chamber (18) which is bounded by an inlet chamber side wall (20) equipped with at least one lateral inlet opening (19) and has an outlet opening (23) on its underside, and wherein the sedimentation insert (12) has an outlet chamber (28) adjoining the inlet chamber (18) which is bounded by an outlet chamber side wall equipped with at least one lateral outlet opening (24) such that a liquid flow generated in a flow direction (25) from the inlet opening (19) to the outlet opening (24) exits at the outlet opening (24),The inlet chamber (18) is equipped with a surface separation device (39) for separating impurities floating on the liquid surface of the liquid flowing into the inlet chamber (18).

In a first aspect, the present invention relates to a tank comprising: one or more chambers separated from each other by a weir; an inlet opening into a first one of the chambers; an outlet, the outlet leading into the last chamber of the chambers; a discharge portion associated with each of the chambers, the inlet and each of the discharge portions having a valve, each of the valves being individually actuatable between an open position and a closed position; a plurality of spray nozzles arranged to spray a fluid onto an inner surface of each of the chambers; a fluid tube arranged to provide fluid to each spray nozzle, a flow control member, and a control module connected to the fluid tube flow control member and each valve. A library of cans is also provided, each comprising a plurality of chambers, and kits for retrofitting existing cans.

An esterification product neutralization / water separation apparatus according to an embodiment of the present invention for solving the above problems includes: a neutralization tank into which an unrefined product mixture containing an alcohol and an ester compound, a neutralizing agent, and water are introduced to form a neutralized mixture; a water separation tank disposed below the neutralization tank and separating the neutralized mixture into a floating layer and an aqueous layer; a partition wall extending downward from the ceiling of the water separation tank to form a lower passage in the water separation tank; and a transfer line for transferring the neutralized mixture from the neutralization tank to the water separation tank, wherein the water separation tank includes a first water separation section into which the neutralized mixture flows from the neutralization tank via the transfer line; and a second water separation section into which the neutralized mixture flows from the first water separation section via the lower passage, and the first and second water separation sections are separated by the partition wall.

The invention relates to a sedimentation device for material contained in liquid, in particular precipitation water, comprising a sedimentation insert (12) which has a vertical axis (26) and which, in the position of use, is inserted in a shaft element (13), the sedimentation insert (12) having an inlet chamber (18) which is delimited by an inlet-chamber side wall (20) equipped with at least one lateral inlet opening (19) and which has an exit opening (23) at the bottom of the inlet chamber, and the sedimentation insert (12) having an outlet chamber (28) which adjoins the inlet chamber (18) and which is delimited in such a way by an outlet-chamber side wall equipped with at least one lateral outlet opening (24) that a liquid flow generated in a through-flow direction (25) from the inlet opening (19) to the discharge opening (24) exits at the discharge opening (24). According to the invention, the inlet chamber (18) is assigned a surface deposition device (39) for the deposition of contaminants floating in the region of the liquid surface of the liquid flowing into the inlet chamber (18).

The stormwater treatment device can include a cross-flow settling device having a treatment channel defined by a front baffle, a rear baffle, and a pair of inclined plates disposed at complementary angles 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, through the treatment channel opening into the treatment channel, through the treatment channel outlet into the outlet chamber in a cross-flow pattern, causing sediment to fall out of suspension and flow out of the cross-flow settling device through openings in the bottom of the pair of inclined plates.

A separator system and method may provide a four-way separator that may separate a material and remove a hazardous material. The hazardous material may include gas and sand that may be removed by the four-way separator. The separator system and method may further provide a main unit that may include three chambers or recirculation hoppers, an auger sand extractor, and a strap tank. The separator system and method may provide a faster rig-up time and may be exclusively driven by hydraulics.

The invention discloses a lateral flow shallow pool sedimentation template with a mud-water separation mechanism and a combined device thereof. The shallow pool sedimentation template consists of a plurality of groups of shallow pool sedimentation units which are arranged in sequence, the right side plates of all the shallow pool sedimentation units are sequentially connected on the same inclined plane to form a whole template inclined pool bottom of the mud collection pool, and the included angle between the right side plates and the vertical line is 3-10 degrees; the combined device is formed by installing a plurality of groups of shallow pool sedimentation templates in a sedimentation operation area above a mud collecting hopper in parallel; the lateral flow sedimentation shallow pool of each shallow pool sedimentation template and the mud-water separation mechanism are arranged on the same side, and the length of each pipe cavity is arranged along the water flow direction; a template mud collecting pool is formed by a gap between two adjacent groups of shallow pool sedimentation templates and is communicated with a plurality of adjacent groups of energy cutting seams C and a mud collecting hopper below the energy cutting seams C; the head ends and the tail ends of the mud-water separation mechanisms and the template mud collection pool are sealed by baffles, the head ends of the lateral flow sedimentation shallow pools are communicated with the water inlet area, and the tail ends of the lateral flow sedimentation shallow pools are communicated with the clear water area; the mud-water separation is thorough.

A bypass separator 30 for separating contaminants such as hydrocarbons and particulates from water. The separator comprises an inlet 12 connected to a first chamber 13 and a second chamber 17 connected to an outlet 28. A first flow path connects the first chamber to the second chamber and a second flow path connects the second chamber to the outlet. There is a third flow path connecting the first chamber to the outlet with a relief valve 36 in the third flow path. The third flow path enables bypass of inflowing water during high flow conditions such as heavy rain and storms.

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