31results about How to "High underflow concentration" patented technology

The invention relates to a continuous preparation system and a preparation technology of whole grain grade tailing cemented filling slurry. The continuous preparation system mainly comprises a tailing slurry collecting buffer feeding device, a deep-cone thickener, a flocculating agent preparing and adding device, an underflow slag slurry pump, a cementing material storage bin, a cementing material measuring and conveying device, an air compression system, a water supply system, a filling accident pool, a stirring system and a filling slurry output pipeline. The preparation technology comprises the steps of conveying tailing slurry to the tailing slurry collecting buffer feeding device through the slag slurry pump, after reducing the pressure to 0.03 MPa through the collecting buffer feeding device and carrying out energy dissipation, feeding the tailing slurry into the deep-cone thickener, and adding a flocculating agent into the deep-cone thickener according to the principle that for per ton of tailing slurry, every 5 to 20 g of the flocculating agent is added, so as to obtain high-concentration tailing slurry with the concentration of 65 to 75%; and conveying the high-concentration tailing slurry and a cementing material into the stirring system according to the fact that the mass ratio of the high-concentration tailing slurry to the cementing material is 1 to (5 to 40), adding water, stirring, and preparing the mixture into the high-concentration whole grain grade tailing cemented filling slurry with the concentration of 65 to 75%. According to the continuous preparation system and the preparation technology, the system is simple, the automation degree during the preparation process is high, the operation is convenient, and the filling slurry can be continuously prepared.

The invention discloses a retractable hydrocyclone and belongs to multi-phase flow separation equipment. The retractable hydrocyclone comprises a feeding hole, an overflow pipe, a swirling chamber, a separation zone and an underflow pipe, wherein the separation zone is a main separation working part and is characterized by being formed by nested connection of a plurality of column segments with different internal diameters. The length of the separation zone of the hydrocyclone has certain influence on the separation precision. The device can adjust the length of the separation zone of the hydrocyclone according to the separation precision of materials, namely when the concentration requirement of a to-be-separated substance changes, the length of the column segments of the separation zone of the hydrocyclone can be extended or shrunk directly according to requirements to achieve use requirements, without re-designing a new hydrocyclone. The hydrocyclone is increased in handling capacity, improved in separation efficiency, increased in underflow concentration, convenient to adjust and low in cost, and is applicable to separation operations of industries including petroleum, chemical engineering, coal dressing, food, sewage treatment and the like, especially applicable to occasions with requirements for obtaining multi-phase flow substances with different concentrations.

The invention discloses a high-efficiency steady flow and uniform material distribution device for a central drive concentrator, which comprises a steady flow barrel, a conical feeder and a centrifugal feeder, the bottom of the steady flow barrel is equipped with a conical feeder, the steady flow A centrifugal feeder is installed on the outside of the bucket; in the present invention, through the centrifugal feeder, the outer diameter of the steel pipe increases from small to large, the pressure gradually decreases, and the flow rate decreases. Make a tangential movement along the inner wall of the outer cover of the steady flow barrel, and then slow down again through several baffles installed on the supporting steel plate. The feeder distributes the material evenly and enters the thickening tank, which can effectively reduce the speed and kinetic energy of the pulp and prolong the residence time of the pulp in the thickening tank, so as to achieve the purpose of increasing the underflow concentration of the central drive thickener without affecting the deposition effect.

The invention discloses an efficient classification and thickening machine for tailing slurry. The efficient classification and thickening machine comprises a supporting frame, a hopper, a material classifying device, a stirring device, a backflow pipe, an overflow tank and an unloading device. The hopper, the material classifying device, the stirring device, the backflow pipe, the overflow tank and the unloading device are arranged on the supporting frame. The hopper is internally divided into a classifying cavity and a material storing cavity through a partition plate. The material classifying device is arranged in the classifying cavity. The material classifying device comprises a primary material chamber, a secondary material chamber, a fall pressure chamber and a circulation plate. The stirring device comprises a first rotating shaft, a second rotating shaft and a slurry pump. The first rotating shaft and the second rotating shaft are hollow and are each in a cylindrical shape. One end of the first rotating shaft is connected with a motor in a transmission mode, and the other end of the first rotating shaft extends into the material storing cavity sequentially through the fall pressure chamber, the secondary material chamber and the primary material chamber. The first rotating shaft is sleeved with the second rotating shaft. The top end of the backflow pipe is arranged above the circulation plate and is lower than the top of the fall pressure chamber. The unloading device is arranged at the bottom of the material storing cavity and comprises a feed cylinder, a material guide cylinder, a spiral bevel gear and a transmission shaft.

The invention relates to a high-efficient thickener, comprising rakes and a power source consisting of driving motors and reducing mechanisms, wherein the power source has three sets distributed in a triangle shape, the output shaft of the reducing mechanism of each power source is provided with a small gear wheel, the small gear wheel is internally joggled with a rotary supporting disk, the rotary supporting disk is connected with a driving cage top via an external rotary table, the lower end of the driving cage top is fixedly connected with a rotary main shaft, the rakes are fixed at both sides of the rotary main shaft, the section of the rotary main shaft is a square frame, and the middle part of the rotary main shaft is provided with a steel pipe support, the rakes are fixed on both side walls of the rotary main shaft along a diagonal direction of a square frame of the rotary main shaft. The invention overcomes the defects that the ordinary thickener has difficultly guaranteed transmission stationarity and small application range, and the supporting role for the groove wall is eliminated by the central transmission mechanism by means of the above design, thereby improving the use stability of equipment, and being capable of being applied to deep cone groove bodies, and having the advantages of simple and compact structure, high work stability, broad application range and strong reliability.

The invention discloses a feeding well device for a centre drive thickener. A feeding well wall is cylindrical; an annular horizontal outer edge is formed in the lower edge of the feeding well wall; a feeding pipe is connected with the outer side of the feeding well wall; a feeding pipe orifice is positioned below the overflow liquid level of the thickener; an overflow tank is arranged below the feeding pipe orifice; the overflow tank is horizontally distributed in a circle along the inner side of the feeding well wall, and the edges of the overflow tank are equal in heights; a conical guide plate is arranged at a lower outlet of the feeding well wall, the edge of the conical guide plate is connected with the outer edge of the lower edge of the feeding well wall through guide vanes, and the guide vanes are uniformly distributed; a flocculating agent addition tube is arranged on the inner side of the overflow tank; and dilution openings are uniformly formed in the feeding well wall. According to the feeding well, any extra power is not needed, and the energy consumption is reduced; ore pulp is uniformly distributed in the feeding well and flows out of the feeding well from all directions, and the utilization rate of settling area is improved; and moreover, the ore pulp flows out of channels between the guide vanes which form an included angle of 40-50 degrees with the radial direction, so that a settled layer in the thickener is prevented from being impacted, the underflow concentration is high, and the feeding well device is convenient to popularize.

The invention belongs to the field of solid-liquid separation, and concretely discloses an efficient settling device. The efficient settling device comprises a primary settling groove and a secondary settling groove; the height H1 of the primary settling groove is smaller than or equal to 5.0m; the ratio (H2 / D2) of the height H1 to the diameter D1 is smaller than or equal to 0.3; the height H2 of the second settling groove is greater than or equal to 5.0m; the ratio (H2 / D2) of the height H2 to the diameter D2 is greater than or equal to 5; the ratio(D1 / D2) of the diameter D1 of the primary settling groove to the diameter D2 of the secondary settling groove is greater than or equal to 5; a feeding pump is arranged between the primary settling groove and the secondary setting groove; the feeding pump is used for pumping slurry flowing out from a primary bottom flow slurry outlet into the secondary setting groove. The efficient settling device provided by the invention has the advantages that the manufacturing cost is low; the construction difficulty is small; the stability after installation is high; the underflow concentration is high; the setting effect is good.

The invention relates to a novel central feeding cylinder of a thickener. The novel central feeding cylinder comprises a cylinder, a feeding pipe, a baffle plate and a fixed ear plate; the feeding pipe stretches into the central feeding cylinder in the tangential direction of the cylinder in a manner of forming a downward tilt angle of 2 degrees to 3 degrees; the baffle plate perpendicular to the tangential direction of the inner wall of the cylinder is welded on the inner wall of the central feeding cylinder, so as to enable inlet ore slurry to flow through the baffle plate perpendicular to the inner wall of the central feeding cylinder, air emission can be promoted and surplus energy can be dissipated effectively, and the mixing efficiency can be improved; the ore slurry entering the central feeding cylinder can produce turbulent flow after meeting the baffle plate, so as to facilitate the full mixing of the ore slurry and a flocculating agent, therefore, relatively large floccules are formed, the dehydration effect can be improved, and the work efficiency of the thickener can be improved.

The invention discloses a high-efficiency tangentially diverted and stabilized flow device for a central drive concentrator, comprising a tangential feeder, a barrel body, a conical distributor, a diversion plate, a cloth rack, a baffle, a servo motor and a generator , the barrel is electrically connected to one end of the tangential feeder, and a drain plate is installed inside one end of the tangential feeder; in the present invention, the slurry enters the barrel through the tangential feeder, and passes through the drain plate The guiding function makes the slurry move tangentially along the inner wall of the outer block seat of the barrel, and gradually slow down through several baffles in turn, and then flow to the conical distributor through the discharge port and the arc-shaped gap after the speed is reduced , the slurry is evenly distributed, and enters the thickening tank. The central drive thickener efficiently tangentially diverts the incoming material and stabilizes the flow device, which can effectively mix the material, and through the cone distributor, it can disperse the material to achieve the best effect, so that in Under the premise of not affecting the deposition effect, the purpose of increasing the underflow concentration of the central drive thickener is achieved.

The invention provides a deep-cone concentration machine used for acid waste water treatment in non-ferrous metal industry, which comprises a tank body, a bridge frame, a material distributor and a material feeding pipe, wherein the top of the tank body (1) is a cylinder, and the bottom thereof is a cone, the bridge frame (8) spans across the top of the tank body (1), the upper part of the material distributor (3) is fixed on the bridge frame (8), the lower end of the material distributor (3) extends into the cone body part of the tank body (1), the material distributor (3) is in a double-layer structure provided with an outer tube and an inner rube, the upper part of the outer tube (4) of the material distributor is a column body, the lower part of the outer tube (4) is a cone body with a smaller upper part and a larger lower part, the inner tube (5) of the material distributor is divided into several parts: an upper column section (10), an upper cone section (11) with the larger upper part and the smaller lower part, a column-shaped transition section (12) and a lower cone section (13) with the smaller upper part and the larger lower part, the top of the upper column section (10) is provided with an exhaust pipe (9), and the material feeding pipe (6) enters the upper column section (10) of the inner tube of the material distributor along the tangent line. The deep-cone concentration machine has good effect and high efficiency when being used for treating the acid waste water in the non-ferrous metal industry, and in addition, the deep-cone concentration machine has no motive power consumption.

The invention relates to the technical field of mine filling, and specifically discloses a composition for improving the setting effect of solid particles, a thickening synergist containing the same,and a preparation method and applications thereof. The composition comprises following components in parts by weight: 16 to 38 parts of complexing component, 14 to 27 parts of air entraining component, 24 to 51 parts of dispersing component, and 9 to 22 parts of linear ionic polymer component; the dispersing component is composed of maleic acid-acrylic acid copolymer sodium salt, polyethylene glycol monomethyl ether, and sodium of polyaspartic acid according to a mass ratio of (2-4): (1-2): 1; and the mass ratio of the dispersing component to the linear ionic polymer component is 2-3:1. The provided composition can destroy the floccules structure to release free water and increase the solid concentration after settlement; and can be used to increase the concentration of underflow of a thickening machine. All components are mixed and dissolved to prepare a solution with a concentration of 10 to 20%; the preparation method is simple, and the composition is convenient to use.