10results about "Sedimentation tanks" patented technology

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 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.

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%.

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.

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.

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.