CN201482581U

CN201482581U - Novel adjustable bottom flow hydraulic cyclone

Info

Publication number: CN201482581U
Application number: CN2009201687237U
Authority: CN
Inventors: 黄山
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-08-05
Filing date: 2009-08-05
Publication date: 2010-05-26
Anticipated expiration: 2019-08-05

Abstract

The utility model relates to a novel adjustable bottom flow hydraulic cyclone, which solves the problems of bottom flow opening blockage, overflow coarse loss and low adaptability to the mineral pulp feeding change of the ordinary hydraulic cyclone. The utility model is characterized in that an upper body is made into a cylinder (2), the middle section is made into a conical body (4), the lower part is made into a bell-mouthed bottom flow section (5) with the symmetrical upper part and lower part, the upper body, the middle section and the lower part are connected for forming a cone bell-mouthed conical cylinder cyclone, the outer side of the cylinder (2) is provided with a feeding opening (1), the inner top of the cylinder (2) is provided with an outer upper cone inner cylinder overflow pipe (3), and a center bottom flow opening adjustable device (6) is arranged in a bell mouth of the bottom flow section (5). The utility model has the advantages that the overflow concentration and the coarse loss amount in the overflow can be reduced, the goal of stabilizing the bottom flow concentration can be reached, in addition, the bottom flow is not easy to be blocked, and the separation efficiency of the cyclone is improved. The utility model is suitable for realizing the solid-liquid separation operation such as grading, concentration, purification, mud removal and the like of solid granules.

Description

The adjustable hydrocyclone of a kind of novel underflow

Affiliated technical field:

The utility model belongs to coal mine machinery manufacturing technology field, be specifically related to the adjustable hydrocyclone of the novel underflow of a kind of industry, be adapted in the fields such as mining industry, environmental protection, chemical industry, food with the classification that realizes solid particle, concentrate, Separation of Solid and Liquid operations such as purification, desliming.

Background technology:

Present common hydrocyclone exists mainly that underflow tap diameter and underflow materials concentration can not onlinely be regulated, underflow opening easily stops up, overflow easily run thick, to the fluctuation of ore pulp pan feeding (mainly referring to feed pressure, concentration) change adaptability strong, exist air column shape and size unstable and defective such as can not regulate.Even regulate the underflow tap diameter size, owing to be subjected to the restriction of underflow density requirement, its adjustable range is also very limited, can not well satisfy to obtain higher underflow density, and the double requirements of lower effluent concentration is arranged again simultaneously.

Summary of the invention:

The purpose of this utility model is exactly for overcoming above deficiency, a kind of effluent concentration that under the underflow density situation close, fully reduces that provides with common hydrocyclone, reduce overflow and run thick phenomenon, strengthen the adjustable hydrocyclone of a kind of novel underflow simultaneously the fluctuation of pan feeding ore pulp.

The utility model is to realize like this, the setting of the adjustable hydrocyclone structure of described a kind of novel underflow is that a cone horn mouth cylinder is set, top is set to cylinder (2), interruption is set to cone (4), underflow section (5) is set to symmetrical horn mouth up and down, it is characterized in that cylinder (2) arranged outside has feeding mouth (1), inner top is provided with outer upper cone inner cylinder benefit stream pipe (3), is provided with center bottom head piece tunable arrangement (6) in the horn mouth of underflow section (5).Operation principle: ore pulp feeds cyclone with certain pressure along tangent line, under the constraint of cyclone inwall, ore pulp is done external spiral motion downwards at a high speed, because the continuous contraction of awl section bore, the discharge of underflow opening is restricted, be folded to when making the downward ore pulp for the helical movement of a part near arriving underflow opening and upwards do the inside spin motion, finally discharge from overfall.At the centrifugal force of rotation liquid stream with radially under the resistance acting in conjunction; solid particle can the layering according to its granularity (density) difference; the particle that granularity is big and density is high is in outermost layer; discharge from underflow opening with external spiral stream; the particle that fine size and density are little is positioned at the innermost layer; discharge from overfall with rising inside spin liquid stream, the mediate particle of state of granularity and density will be positioned at the middle part of cyclone, at random enter underflow or overflow.

1. the particular design of pan feeding section, the pan feeding section has adopted the camber line enter material way, and the about side of feeding pipe is all tangent with the cyclone cylindrical tube, and the feeding mouth cross section is rectangle and is the convergent mouth.Make ore pulp being that energy loss in the whole process of moving along the cyclone spiral inner wall is lower than common cyclone by the rectilinear motion transition, under same feed pressure, can obtain bigger centrifugal force, therefore help improving separating effect;

2. the overflow pipe external diameter adopts pyramidal structure (cone angle is 1～10 °), and from top cover down, external diameter increases gradually, and internal diameter is a column structure.Like this, from top to bottom, spacing between overflow pipe external diameter and cyclone shell of column cylindrical shell is just constantly shunk, can remedy in rotary course the centrifugal intensity that the loss owing to energy causes like this and weaken, keep centrifugal intensity relatively stable, simultaneously, the existence of overflow pipe tapering, can also play certain effect to liquid stream, help solid particle and enter outer eddy flow, reach and reduce effluent concentration and reduce the thick purpose of race to the guiding of cyclone wall.

3. the design of underflow section adopt to increase underflow bore (the underflow bore is 1.2～2 times of common cyclone), and it should be that the awl awl connects that the awl post of underflow opening is connected, and helps reducing between solid particle the frictional resistance between resistance and particle and wall mutually.

4. underflow opening adjusting device, it is axis with the cyclone center line that this device is positioned at underflow section below, link to each other with underflow section external diameter by bolt, the lifting of bolt can make adjusting device move up and down along central shaft, both play the size of regulating the underflow bore, and can play the stable effect of maintenance center air column shape and size again.

Such design both can reduce to run thick quantity in effluent concentration and the overflow, can reach the purpose of stablizing underflow density again, and because the underflow bore becomes big, underflow also is not easy to stop up.Improved efficiency of hydrocyclone greatly.

The adjustable hydrocyclone of a kind of novel underflow of this practical shape, it is close with common hydrocyclone to have a underflow density, but effluent concentration can reduce by 10～15%, run thick phenomenon minimizing 5%, and underflow density is relatively stable, and fluctuation range is ± 5%.In pan feeding concentration is under the situation of 150g/l, feed pressure 0.07Mpa, and effluent concentration is 40g/l, the good effect of underflow density 700g/l.

Description of drawings:

Accompanying drawing is the adjustable hydrocyclone structure chart of a kind of novel underflow

Among the figure: 1. feeding mouth, 2. cylindrical section, 3. outer upper cone inner cylinder benefit stream pipe, 4. conical section, 5. underflow section, 6. center bottom head piece tunable arrangement

The specific embodiment:

The present invention is described in further detail below in conjunction with accompanying drawing embodiment, as the adjustable hydrocyclone of the described a kind of novel underflow of accompanying drawing, the structure setting is that the upper body is set to cylinder (2), the disconnected cone (4) that is set in stage casing, the bottom is set to cone horn mouth circular cone tube cyclone of symmetrical horn mouth underflow section (5) composition up and down, in cylinder (2) arranged outside feeding mouth (1) is arranged, upper cone inner cylinder benefit stream pipe (3) outside being provided with in the middle part of pushing up in cylinder (2) is provided with center bottom head piece tunable arrangement (6) during the horn mouth of underflow section (5) is interior.

Claims

1. adjustable hydrocyclone of novel underflow, the structure setting is that the upper body is provided with a cylinder (2), the stage casing is set to cone (4), the bottom is set to cone horn mouth circular cone tube cyclone of symmetrical horn mouth underflow section (5) composition up and down, it is characterized in that cylinder (2) arranged outside has feeding mouth (1), inner top is provided with outer upper cone inner cylinder benefit stream pipe (3), is provided with center bottom head piece tunable arrangement (6) in the horn mouth of underflow section (5).