41results about How to "Increase the settlement area" patented technology

The invention relates to a liquid-liquid extraction mixer-settler and an extraction method and an application thereof. The mixer-settler comprises a mixing chamber and a clarifying chamber, wherein the side in the clarifying chamber near the mixing chamber is provided with a guide pipe which extends to the tail end of the clarifying chamber from an outlet of the mixing chamber; and at least the upper part or the lower part of the guide pipe in the clarifying chamber is transversely and fixedly provided with a wedge-shaped body. As the upper part and / or the lower part of the guide pipe in the clarifying chamber is fixedly provided with the wedge-shaped body, not only is the storage amount of organic phases in the settling chamber reduced, but also a large light-heavy two-phase settling area is provided so that the clarifying phase-splitting time is prolonged, and the clarifying separation effect is remarkable for an easily-emulsifying system or a system with larger viscosity; and the mixer-settler provided by the invention can be used for single-stage continuous extraction operation or multi-stage series-connected countercurrent continuous extraction operation.

The invention discloses a radial flow sedimentation tank with multi-layer settling plates, which belongs to the technical field of agricultural engineering. The technical solution includes the main body of the settling tank, the sump and clear water pipe arranged on the upper part of the main body of the settling tank, the water inlet pipe arranged at the lower part of the main body of the settling tank, the water distribution cylinder with water outlet holes, the mud discharge bucket, the sludge pipe, etc., and is characterized in that In the main body of the settling tank, multiple layers of settling plates are set up and down. Each layer of settling plates is a round or edge table with an angle with the horizontal plane, that is, each layer of settling plates is a slope with a high outer edge and a low center. The present invention introduces multi-layer settling plates into the settling tank, which increases the settling area per unit volume and improves the volume utilization rate of the settling tank; the settling plate can prevent the short flow that is easy to form in the general radial flow settling tank; without moving parts, it improves settling conditions. It reduces the occupied area, reduces the infrastructure cost, and the operation and maintenance cost is low.

The invention provides a wastewater treatment method for wet regeneration of mixed casting waste sand. First, the wastewater is demulsified, and then the suspended matter with larger particles in the wastewater is flocculated in a spiral flocculation tank with an inorganic flocculant, and then an organic flocculant is used to The flocculant flocculates the suspended solids with small particles, and passes through the inclined tube settling tank for static settlement. The floc layer formed by compression at the bottom is pumped out by the sludge pump at the bottom of the settling tank, flocculated with organic flocculant again, and finally concentrated by belt type vacuum filter Integrated machine treatment, the moisture content of the sludge coming out of the filter cake outlet of the belt-type concentrated vacuum filter press integrated machine is below 40%; while the overflow supernatant of the inclined tube settling tank and the clear water outlet The clean water meets the requirements of production circulation water and the standard of direct discharge.

The invention discloses a wet process continuous classifying device and method for flaky grains. The wet process continuous classifying device comprises a bottom end material accumulating section, a fluidization section, an inclined ascending flow section, a reducing ascending flow section and a closed-loop flow constant value feedback control system. A liquid-solid fluidized bed of the fluidization section is a sealed cavity, and a fluid distributor is arranged at the bottom in the cavity. The bottom of the fluid distributor is connected with a feeding pipe. The fluid distributor is composed of a distribution plate and a conical cavity. A gap of 10-100 mm exists between the distribution plate and the inner surface of a box of the fluidization section. During classifying, prepared suspension liquid is conveyed through a centrifugal pump to flow through the fluid distributor to enter the fluidization section, the grains are sequentially classified through the fluidization section, the inclined ascending flow section and the reducing ascending flow section, small grain suspension fluid overflows from a top end overflow pipe, and after a material seal is formed by large grains on the equipment material accumulating section, the large grains are output from a screw discharger. The wet process continuous classifying device and method have the beneficial effects that operation is stable, continuous production is achieved, the automation degree is high, the processing amount is large per unit occupied area, the product grain fineness distribution is narrow, and the production cost is low.

A centrifugal machine for clarifying liquid technically features that its drum-type overflow segment of clarified liquid has a hollow conic structure, the part of spiral conveyer, which is relative to said overflow segment, has no spiral blade, and the dregs are centrifugally pushed toward the dregs discharge segment and then are delivered to dregs outlet by spiral blades.

The invention relates to a novel slow-flow efficient thickener. The novel slow-flow efficient thickener comprises a tank body, a degassing tank, a central feed blending barrel, a motor transmission device, a rake rack lifting device, a slow-flow device, an overflow weir, a rake rack, a feeding device and a vertical shaft; the vertical shaft is arranged in the middle of the tank body; the verticalshaft passes through the central feed blending barrel, the rake rack is fixed at one end of the vertical shaft, and the other end of the vertical shaft is connected with the rake rack lifting device;the rake rack lifting device is connected with the motor transmission device, and a scraper is connected on the rake rack; the degassing tank is connected with the feeding device, and the feeding device is connected with the central feed blending barrel; and the central feed blending barrel is connected with the slow-flow device, and the slow-flow device is connected with the overflow weir. Compared with the traditional thickener, the novel slow-flow efficient thickener has high processing capability and low flow turbidity, and improves the discharging concentration.

The invention discloses a continuous settling tank which comprises a shell, wherein the shell is provided with a circular cylinder at the upper part and a conical cylinder at the lower part; an overflow weir is arranged in the circular cylinder; an underflow outlet is arranged at the bottom of the conical cylinder; an arch-shaped feeding slot is arranged in the circular cylinder of the shell; the arch-shaped feeding slot comprises the inner side wall of the circular cylinder, a flat wall plate, a grid distributing plate and a baseboard; the grid distributing plate is arranged under the flat wall plate; upper and lower ends of the grid distributing plate are respectively fixedly connected to the flat wall plate and the baseboard; a plurality of porous guiding vanes are symmetrically and obliquely arranged outside the flat wall plate; gaps are reserved between the guiding vanes and the flat wall plate; and a rotary rake is arranged on the conical cylinder at the lower part of the shell. By using the continuous settling tank provided by the invention, the maximum settling area is supplied as much as possible, an interior space of equipment is efficiently utilized, a settling separating effect is improved, and the loss of solid materials such as catalyst can be reduced.

The invention discloses a viscous oil fission viscosity reduction treatment device, and belongs to the field of oil exploitation. In-well mixed liquid is received by a centrifugal machine, oil-water separation is performed for the mixed liquid, viscous oil from the centrifugal machine is received by a buffer tank and injected into a booster pump and boosted, the viscous oil is heated through a high-temperature heat exchanger, pyrolysis, fission and viscosity reduction of the viscous oil are performed by a pyrolysis and fission furnace, so that the viscous oil from the pyrolysis and fission furnace is received by a pressure reduction device, pressure reduction is performed for the viscous oil, the viscous oil from the pressure reduction device is received by an air cooling tower and cooled, and the viscous oil from the air cooling tower is received by a separator and separated to obtain heavy oil and non-congealable oil. The treatment device solves the technical problems that part wells do not have thin oil to blend and production benefits are poor as thin oil blending cost is high in the prior art.