10results about How to "Prolong settling time" patented technology

The invention discloses a safe wastewater collection box for environmental monitoring, and relates to the technical field of safe wastewater collection boxes, the safe wastewater collection box comprises a precipitation treatment structure, and the precipitation treatment structure comprises a top cover, a bottom cover and a bottom cover, one end of the containing cylinder is fixedly connected to the supporting base, the outer surface of the containing cylinder is attached to the inner surface of the pretreatment cylinder, and the opening direction of the other end of the containing cylinder is the same as the opening direction of the pretreatment cylinder; the outer surface of the inclined plate precipitation piece is attached to the inner surface of the pretreatment cylinder, the push-scraper is connected to the inclined surface of the inclined plate precipitation piece in an attached and sliding mode, and the bearing ring is fixedly connected to the dead center of the inclined plate precipitation piece and located below the push-scraper. The sewage discharge groove of the accommodating cylinder is cleaned and discharged in time, so that accumulation and re-suspension of sediments in the pretreatment cylinder are avoided.

The utility model discloses an automatic surface water monitoring system, which comprises a sampling module for sampling a water body and conveying the sampled water body, and is characterized by comprising a precipitation module and a first measurement module which are connected with the sampling module, and a conveying module arranged on the precipitation module, and the second measuring module is connected with the precipitation module through a conveying module. The sedimentation time of the sampling water body in the second sedimentation tank is prolonged according to the turbidity of the water body, the turbidity of the sampling water body is further reduced, the influence on the total phosphorus measuring unit in the second measuring module is reduced, and the data accuracy of the total phosphorus measuring unit is improved.

This utility model discloses a thickener foam elimination structure, comprising: a thickener treatment tank, a rake frame arranged within the thickener treatment tank, and multiple sets of scraper components vertically supported on the rake frame. The multiple sets of scraper components are arranged sequentially and at intervals along the circumference of the treatment tank, moving in response to the fluctuations in the slurry surface within the thickener treatment tank, thereby scraping the mineralized foam in the thickener treatment tank towards the center and causing it to accumulate. A thickener bridge is also erected above the thickener treatment tank, and a spray system is mounted on the thickener bridge. The spray system is used to spray the supernatant from the upper layer of the thickener treatment tank or externally supplied washing water onto the mineralized foam, driving the mineralized foam towards the center of the thickener treatment tank and simultaneously defoaming the foam. This novel structure effectively reduces processing costs, prevents mineralized foam from overflowing outwards through overflow outlets located on the outer periphery of the thickener treatment tank, and significantly reduces the amount of defoamed mineral particles carried away by the overflow.

The utility model belongs to water treatment technical field, specifically discloses a perforated folded plate for sedimentation tank and the sedimentation tank of oblique installation perforated folded plate. The perforated folded plate is the plate -like structure of undulating extension and includes at least three folded plate tops of undulating top end and three folded plate bottoms of undulating bottom end, and the folded plate top of perforated folded plate is adjacent to the folded plate bottom and is provided with a plurality of folded plate holes on or close to the folded plate top. The water inlet and the water outlet of the sedimentation tank are separately arranged in the lower part and the upper part of the pool body, a folded plate support is fixed above the water inlet in the pool body, a plurality of aforementioned perforated folded plates are obliquely arranged on the folded plate support in the pool body, the folded plate top of the perforated folded plate faces upwards and the folded plate bottom faces downwards. The perforated folded plate top of the utility model is provided with the folded plate hole, and the sewage can flow upwards through the folded plate hole, which not only can increase the sedimentation area, but also can realize automatic sludge discharge, has the characteristics of simple structure, wide application range, high sedimentation efficiency and automatic sludge discharge.

The invention discloses a method for reducing chromium content in metal chromium smelting slag, and relates to a method for reducing chromium content in smelting slag, which comprises the following steps: uniformly mixing chrome green, aluminum powder, sodium chlorate, fluorite and a flux machine for 30 minutes, putting into a cast iron furnace shell, paving a bottom with magnesite bricks in the furnace shell, making a sand nest with fine magnesite, and after the mixture is put, projecting the middle of the top charge surface, and then making the top of the middle convex part into a nest shape, putting a thin or thin magnesium rod and sodium chlorate into the nest, igniting the thin or thin magnesium rod, carrying out ignition reaction, cooling for 24 hours after the reaction is finished, lifting a furnace shell, separating slag from chromium, sampling and analyzing slag components. The fluorite and the flux H are added, technological conditions are changed, the melting point of the system is reduced, the viscosity of the system is reduced, the reduction reaction time is prolonged, the metal chromium settling time is prolonged, finally, the chromium content of the smelting slag is reduced, and the utilization rate of chromium resources is increased.

The shale oil treatment system comprises an oil collecting assembly, a plurality of oil tanks, an oil intercepting and draining assembly, an oil distributing assembly and a residual oil recycling assembly. The oil collecting assembly is respectively communicated with the oil tanks, and the oil tanks are arranged in parallel; a bottom water outlet of the oil tank is communicated with the oil intercepting and water draining assembly; an oil outlet in the bottom of the oil tank is communicated with one end of the oil distributing assembly, and the other end of the oil distributing assembly is communicated with the loading crane pipe. The shale oil treatment system further comprises a dosing assembly which is communicated with the oil collecting assembly. The invention further provides a shale oil treatment method. The oil-water separation device has the beneficial effects that the dosing assembly is additionally arranged, in the crude oil treatment process, especially in the fracturing fluid flowback stage at the initial stage of exploitation, a demulsifying agent is injected into the oil collecting pipeline, so that the agent and the water-containing crude oil are fully mixed and contacted, the purposes of efficient demulsification and rapid oil-water separation are achieved, and the oil-water separation efficiency is high.

The present invention provides a concentrator feeding device with energy dissipation, dilution, dispersion and degassing functions, comprising a concentrator tank, a feed pipe, a central spindle of the concentrator and a drive motor for driving the central spindle to rotate, and is characterized in that it comprises a feeding mixing box, and the feeding mixing box is suspended below the central operating platform of the concentrator through hangers welded at equal angles on the outer side of its upper part; a rotating sleeve is also provided above the central operating platform of the concentrator, and a dilution system, an energy dissipation, degassing system and a dispersion system are provided in the feeding mixing box. The advantages of the present invention are that the ore is stably fed from the center of the concentrator and passes through the concentrator feeding device, which greatly improves the concentrating effect of the concentrator under the same conditions, and the structure is simple and reasonable.

The application discloses a kind of copper smelting slag wastewater treatment with sedimentation device, comprising: from left to right sequentially arranged filter part, buffer part and sedimentation part;Rotatable filter cylinder is equipped in the filter part, extraction pump is arranged in the filter part and located in the inside of filter cylinder, and the filter cylinder is used to filter the sewage of inlet pipe entrance.This application, the wastewater in the inside of inlet pipe can continuously fall into the filter cavity located in the top of filter cylinder, then be filtered by the filter screen of cylinder, carry out primary screening, screen the large particles of metal and floating impurities in wastewater, then fall into slag discharge mechanism along with the rotation of filter cylinder, for collection and subsequent processing, and the equipment can obtain the stratification of supernatant and precipitate according to the feedback of turbidity analyzer, and adjust the height of drain pipe, so that it is located in the middle of the stratification of supernatant and precipitate, avoid disturbing supernatant that has been precipitated in the process of drainage, and prolong the precipitation time.

The present invention provides an integrated water purification device, including a water inlet pipe and a base, wherein the right side of the water inlet pipe is fixedly connected to a sedimentation tank, the bottom of the sedimentation tank is fixedly connected to the top of the base, and the right side of the sedimentation tank is fixedly connected to a filter; the rear side of the filter is fixedly connected to a backwashing device, the right side of the filter is fixedly connected to a disinfection device, and the bottom of the disinfection device is fixedly connected to the top of the base; the top of the water inlet pipe is fixedly connected to a quantitative structure, the front side of the quantitative structure is fixedly connected to a dispersion structure, and the dispersion structure is located on the right side of the water inlet pipe; and a sealing structure is provided at the bottom of the sedimentation tank. The present invention solves the problems of inconvenience of adding coagulants in existing integrated water purification devices and cumbersome sludge treatment inside the sedimentation tank by arranging a water inlet pipe, a base, a sedimentation tank, a filter, a backwashing device, a disinfection device, a quantitative structure, a dispersion structure, a sealing structure and a linkage structure.

The present invention relates to a vertical multi-pass co-current flow sedimentation separation device, comprising a box, in which a plurality of sedimentation separation units connected in sequence and in opposite directions are arranged in the height direction, the structure of the sedimentation separation unit comprises a sedimentation plate arranged downwardly in a horizontal direction, the upstream side and both sides of which are in contact with the inner wall of the box, the two adjacent sedimentation plates are inclined in opposite directions, a sediment collection tank and a vertical overflow baffle are arranged at the edge of the downstream side of the sedimentation plate, and a sediment discharge pipe is connected to the collection tank; a liquid inlet pipe and a liquid outlet pipe are respectively arranged at the top and bottom of the box, and the mixture flows through different units in sequence for sedimentation separation after entering from the inlet pipe. The light phase and the heavy phase flow in the same direction, which solves the disturbance problem between the light and heavy phases caused by increasing the sedimentation area with multi-layer partitions, reduces the floor space of the sedimentation equipment, and improves the sedimentation separation efficiency.