CN2136072Y - Vortex circulation-type separator for liquid and solid - Google Patents

Abstract

The utility model relates to a vortex circular-flow type separator for liquid and solid, which is formed by that concentric inner and outer cylinder bodies divide the interior of the separator into a primary separation zone, a circular flow passage, and a secondary separation zone. The upper end of the outer cylinder body is longer than the upper end of the inner cylinder body, and is provided with a flange or a closure head. A central overflow pipe passes the flange or the closure head to extend into the outer cylinder body. An inlet pipe passes through the outer cylinder body and tangentially connected in the inner cylinder body. The lower end of the outer cylinder body is provided with a conical cylinder body. The lower part of the conical cylinder body is provided with a bottom-flow discharge pipe and a bottom-flow adjusting ring. The separator can separate the solid and the liquid, the separator has a separation effect on liquid and liquid, and on gas and solid besides. The separator has the advantages of novel structure, short liquid flow path, high separation efficiency, large treating quantity, low pressure drop, convenient operation, and high stability.

Description

Vortex circulation-type separator for liquid and solid

The utility model relates to a kind ofly makes the spiral liquid circulation liquid-solid separator that the centrifugal force that is divided into first separation district, circulation channel and secondary separation district three parts in device and relied on the fluid rotation to be produced by inside and outside cylindrical shell is separated the different liquid-solid two-phase of density with metal material through machining process.

Existing conventional type cyclone is the cylinder conical structure, and the top is a direct tube section, connects tapering down and be 9-20 ° cone.The cyclone top center is provided with the overflow pipe that an end stretches into some distances in the cyclone.During operation, the feed liquid that contains solid particle (heavy decentralized photo) tangentially enters straight barrel from the separator top.Because the fluid-flow rate that tangentially enters is very fast, in cyclone, forms rotational flow at a high speed, and enter cone downwards along the wall rotation.The centrifugal action that fluid rotation is produced is got rid of the solid particle in the feed liquid to wall, is compiled in cone base then and discharges.After liquid-solid mixture enters cone, have only small amount of liquid to discharge from underflow with solid particle, most liquid is owing to flow section constantly reduces to be compiled in the axle center, then along the rotation of separator axis upwards, discharge from the top overflow pipe, thereby liquid-solid two-phase is separated.Since in the conventional type cyclone, formed Yan Bianbi from top to bottom with along the axle center from bottom to top two vortexs, fluid flow path is long, velocity gradient is big, thereby pressure drop is big, the energy consumption height.Cyclone diameter is excessive, the mobility status generation marked change of device inner fluid, needed fluid rotary speed in the time of can not guaranteeing to separate, and easily produce the short circuit between the rise and fall vortex, separative efficiency is descended significantly, so its diameter generally is no more than 500mm, so need many parallel operations when treating capacity is big.Because liquid form and the speed speed that depends on inlet fluid of fluid in device, when the fluctuation of inlet velocity or flow velocity are low, separative efficiency sharply descends, and flow velocity is when increasing, the operation pressure drop is sharply risen, so shortcoming such as the conventional type cyclone exists also that operational stability is poor, elasticity is little and enlarge-effect is remarkable.

It is big that goal of the invention of the present utility model is to overcome existing conventional type cyclone fluid-pressure drop, the energy consumption height, operating flexibility and treating capacity are little, enlarge-effect significantly reaches the shortcoming of operational stability difference, it is simple, easy for operation to seek a kind of novel structure of design and manufacture, and fluid shear stress and pressure drop are little, energy consumption is low, and stable Qiang And has the spiral liquid circulation liquid-solid separator of big operating flexibility.

In order to realize the foregoing invention purpose, the utility model main body adopts metal material to make the sleeve cone structure, be in the middle annular space that leaves certain distance of inside and outside cylindrical shell of concentric, the inner tube of inside and outside two cylindrical shells bracing frame is connected and is concentric one, the upper end of inside and outside cylindrical shell is not or not same plane, be that inner barrel is lower than the outer cylinder body certain distance, the outer cylinder body upper end is shaped on flange or end socket, be shaped on the center overflow pipe at flange or end socket center, the center overflow pipe stretches into certain distance in the outer cylinder body but does not insert inner barrel, be shaped on scavenge pipe in outer cylinder body one side, the opposite side bottom is passed outer cylinder body and is tangentially inserted inner barrel and be shaped on inlet tube; Connect with the footpath conic tube in outer cylinder body lower end system, its underpart is shaped on the underflow delivery pipe and with the underflow adjustable ring of tapering.During lock out operation, feed liquid enters inner barrel and does the rotation ascending motion with tangential manner from inner barrel lower inlet pipe, after feed liquid enters inner barrel, because cross section sudden enlargement, upwards the axial velocity that flows reduces, and contained bigger solid particle directly sinks to the conic tube bottom in the charging under the gravity effect; The solid particle of intermediate diameters owing to centrifugal action is thrown toward the inner core body wall, enters conic tube along the sedimentation of inner core body wall then when doing the rotation ascending motion with liquid; Less solid particle is thrown toward the annular space between inside and outside cylindrical shell after screwing out the inner barrel upper end with fluid, enters conic tube under together with partially liq circulation.Fluid is done the rotation descending motion in conic tube, make circulation and under less solid particle and liquid in conic tube, obtain secondary separation, the liquid that is separated returns inner barrel along the rotation of conic tube axis, final solid particle is discharged by the underflow delivery pipe at conic tube bottom enrichment And, thereby liquid-solid two-phase is separated.

The utility model compared with prior art has novel structure, and glide path is short, and current gradient is little, and shear stress is little in the fluid, the little efficient height of pressure drop, outstanding advantage such as energy consumption is low, and enlarge-effect is little, and treating capacity is big, and the strong and elasticity of operational stability is big.

Fig. 1 is the cross section structure schematic diagram of the utility model.

When implementing, adopt the utility model metal material to finish through machining process, its main body top is the inside and outside sleeve structure, the bottom is a cone structure, inner barrel 3 will be divided into first separation district, circulation channel and secondary separation district three parts in the whole device, center overflow pipe 1, outer cylinder body 2, inner barrel 3, conic tube 5, underflow delivery pipe 6 and underflow adjustable ring 7 are co-located in same axle center.Stay annular space at regular intervals to constitute circulation channel in the middle of inner barrel 3 and the outer cylinder body 2, two cylindrical shells are fixed with one by bracing frame 8, bracing frame 8 adopts the welding of multiple spot band steel, uniform 2～5 bracing frames 8 on inlet tube 4 axis cross section of living in, a uniform 3-6 bracing frame 8 on 10～100mm plane, the upper surface of distance inner barrel 3 should have certain angle in order to avoid influence the flow pattern of liquid in the annular space when bracing frame 8 of employing band steel and the welding of two cylindrical shells again.The upper end of inner barrel 3 and outer cylinder body 2 is not in same plane, be that inner barrel 3 is shorter than outer cylinder body 2 certain distances, the diameter of outer cylinder body 2 is 11～15 times of diameter of inner barrel 3, inner barrel 3 is main Disengagement zone of cyclone, it is the first separation district, inner barrel adopts the garden barrel structure, also can adopt cone structure.Can open a plurality of tangential discharge grooves 12 of system around the top of inner barrel 3, make heavy dispersion separated in inner barrel 3 rise to forward position, top letdown tank 12 and flow to annular space in rotation, thereby reduce the concentration of cyclone top-heavy decentralized photo, help the reduction of pressure drop and the raising of efficient.Be shaped on tack flange 11 or end socket 10 in outer cylinder body 2 upper ends with holding screw, be shaped on tubular center, garden overflow pipe 1 at the center of flange 11 or end socket 10, its lower port stretches in the outer cylinder body 2 but is not less than plane, inner barrel 3 upper surface.The diameter of center overflow pipe 1 is 02～05 times of inner barrel 3 diameters; Because to thickness or when easily the fouling system separates, equipment long-time running or misoperation can produce reducing of annular space or stop up, thereby be shaped on scavenge pipe 9 in the upper side of outer cylinder body 2, so that clean the thing dirt, scavenge pipe 9 and outer cylinder body 2 are tangent and downward 10 °～30 ° inclination angle, its diameter are arranged is 005～05 times of inner barrel 3 diameters; Pass outer cylinder body 2 levels or be inclined upwardly and tangentially insert inner barrel 3 and be shaped on inlet tube 4 at the bottom of outer cylinder body 2 opposite side, its diameter is 02～05 times of inner barrel 3 diameters, and inlet tube 4 is except that the shape of the garden of employing, and also can adopt length-width ratio is the rectangular section tube of 3:1.

Adopt welding manner to connect in outer cylinder body 2 lower ends and be shaped on conic tube 5, because conic tube 5 is second Disengagement zone, for improving the rotary speed of conic tube 5 inner fluids, certain-length in the conic tube 5 can be inserted in the lower end of inner barrel 3, but the barrel of insertion end should have certain chamfering, the cone angle of conic tube 5 is in 5 °～45 °, its underpart is shaped on underflow delivery pipe 6, underflow delivery pipe 6 adopts flange to connect And can set up the flange cone structure between both connect underflow adjustable ring 7 with conic tube 5, the diameter of underflow delivery pipe 6 is identical with the back cut diameter of underflow adjustable ring 7, is generally 005～05 times of inner barrel 3 diameters.The underflow adjustable ring 7 that adopts special wear-resistant metal material to manufacture can increase the operating flexibility of equipment and satisfy the requirement of solid concentration in the underflow and regulate the underflow discharge capacity, and the back of being convenient to wear and tear is changed.

Experimental result shows that the utility model adopts vertical or the inclination certain angle all has the identical separation effect by dress, and the series connection use can improve total separating effect; Except liquid-solid two-phase was separated, liquid liquid is separated for it and gas solid separation all has similar mechanism and effect.

Claims (4)

1, a kind of parts compositions of making through machining with metal material such as inner barrel, outer cylinder body, conic tube, underflow delivery pipe, underflow adjustable ring and inlet tube, center overflow pipe that mainly contain are used for the spiral liquid circulation liquid-solid separator that liquid-solid two-phase separates, it is characterized in that concentric and the middle inside and outside cylindrical shell that leaves spacing will be divided into first separation district, circulation channel and secondary separation district in the whole device, inside and outside two cylindrical shells are connected by bracing frame and are concentric body; Connect with the footpath conic tube in outer cylinder body lower end system, the underflow delivery pipe is adopted flange to connect to be shaped on and with the underflow adjustable ring of tapering in its underpart.

2, spiral liquid circulation liquid-solid separator according to claim 1 is characterized in that passing outer cylinder body lower end one side and tangentially inserts inner barrel and be shaped on inlet tube, and the center overflow pipe stretches into the outer cylinder body group and do not insert inner barrel from the top; Can open a plurality of tangential discharge grooves of system on inner barrel top all around, so that heavy dispersion flows to annular space before rotation rises to the top.

3, spiral liquid circulation liquid-solid separator according to claim 1, it is characterized in that the outer cylinder body upper end is shaped on tack flange or end socket with holding screw, the outer cylinder body upper side tangentially is connected to outer cylinder body downwards with 10-30 ° of inclination angle and is shaped on scavenge pipe, so that in time clean the dirt in the annular space.

4, spiral liquid circulation liquid-solid separator according to claim 1, it is characterized in that center overflow pipe, inner barrel, outer cylinder body, conic tube, underflow delivery pipe and underflow adjustable ring are co-located in same axle center, its each parts diameter proportion is: outer cylinder body is 11-15 a times of inner barrel diameter; Center overflow pipe and inlet tube are 02-05 times of inner barrel diameter; The last bore of scavenge pipe and underflow delivery pipe and underflow adjustable ring is 005-05 a times of inner barrel diameter.

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