CN100591420C - Superfine cavitated target type water jet mill - Google Patents
Superfine cavitated target type water jet mill Download PDFInfo
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- CN100591420C CN100591420C CN200810197131A CN200810197131A CN100591420C CN 100591420 C CN100591420 C CN 100591420C CN 200810197131 A CN200810197131 A CN 200810197131A CN 200810197131 A CN200810197131 A CN 200810197131A CN 100591420 C CN100591420 C CN 100591420C
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Abstract
The invention relates to a solid material crushing device, in particular to a superfine cavitation target type water-jet mill which is characterized by comprising a hopper, a cavity of the mill, a granularity regulating plate, a jet mixing accelerating part, an impact regulating target body and a stand, wherein the hopper is fixed on the upper end of the cavity of the mill and is communicated withan injection cavity of the cavity of the mill; the bottom of the cavity of the mill is fixed on the stand; a diffusion mixing pipe of the jet mixing accelerating part is fixed in a cavity of a diffusion mixing pipe positioning seat in the cavity of the mill; a nozzle mouth of a cavitation nozzle is positioned in an input port of a diffusion mixing pore channel; the impact regulating target body is positioned on the left of an output port of the diffusion mixing pipe of the jet mixing accelerating part; the granularity regulating plate is arranged on the position of an output end of a gradually varied channel with an arc section and a grading discharge hole in the cavity of the mill; and the grading discharge hole of the cavity of the mill is communicated with the output end of the gradually varied channel. The superfine cavitation target type water-jet mill has the characteristics of high utilization rate of crushing energy and easy regulation of granularity.
Description
Technical field
The invention belongs to field of powder engineering, be specifically related to the solid material reducing mechanism.
Background technology
Water-jet technology is a new technology that grows up gradually the sixties in 20th century, by water jet exploitation originally, progressively develop into fields such as water jet cleaning, cutting, to the mid-80, Missouri, USA-roller (Missour-Rilla) university's rock mechanics and blasting technique research center, at first utilize high-pressure water jet to carry out timber, waste paper pulp-making, treatment of Municipal Solid Waste, and the pulverizing of coal and mineral test, thereby begun the research of high-pressure water jet crushing technology, and paid more and more attention.High-pressure water jet is pulverized the positive paid more and more attention of this new technology, has viewpoint to think, high-pressure water jet is pulverized with ultrasonic wave and pulverized and hot crushing technology, may be an innovative technology in the 21 century comminution engineering.
Though the water jet crushing technology has been showed good prospects for application, this Study on Technology also progressively turns to commercial development to use from experiment.But, it is very few that present domestic external enwergy is applied to industrial water jet reducing mechanism, the development of water jet crushing technology is restricted, its main cause be existing water jet reducing mechanism that is that all right technically is ripe, and the water jet granularity control of pulverizing and the exploitation of new and effective water jet reducing mechanism relatively lag behind.
Existing water jet reducing mechanism is divided into three kinds of forms both at home and abroad: directly the water jet current grind (Straight Water Jet); Preceding mixed material jet current mills (DIA Jet); Back mixed material jet current mills (Abrasive Entrained WaterJet).Wherein:
1. the water jet double-disk pulverizer of U.S. Missouri-Rilla university development (directly water jet current mill) is used for the pulverizing of coal.Its operation principle is: upper and lower disk is respectively by motor-driven, and can independently adjust the relative velocity of disk.When coal feeds the crusher chamber that two disks constitute by one and the coaxial mounted feed pipe of top disc, centrifugal force gets rid of coal cinder to the disc surfaces of rotating outwardly, directly inject gap between two disks by the water jet of the nozzle on motor-driven swivel head ejection, impact the coal that is subjected to Mechanical Crushing between two disks.Passed through the slit ejaculation of grading after pulverizing less than the coal particle of granularity requirements, bulky grain is then further pulverized in crushing chamber.
The rotating jet grinding machine of the 2. Italian DIMM of University of Cagliari laboratory development (directly water jet current mill) is used for the pulverizing of coal.Its operation principle is: have one to be with the spray gun of two nozzles in rotation above the circular small opening that the annular wall of crusher chamber and conical centre form.The material that adds is fallen material after the bullet bottom enters crusher chamber and forces fragmentation by small opening, again be positioned at following shock plate and carry out impact comminution again.Another kind of directly water fluid jet grind device for coal similarly is: water jet through swivel joint by the coal grain in the nozzle directive container, container is closed, the coal grain was constantly impacted by water jet in the extremely short time, and under turbulent flow and the effect of cavitation erosion effect, the coal grain is pulverized.
1. above-mentioned and 2. two kinds of water jet reducing mechanisms, owing to adopted motor-driven rotational structure in various degree, make reducing mechanism too complicated, and bring wearing and tearing and problems such as water under high pressure sealing, its water jet impact strength is limited, being used to be easy to the pulverizing of the coal of cleavage, also is the initial stage structure of water fluid jet grind.
3. preceding mixed material jet current mill, the ultra-fine water jet reducing mechanism of delaminating of German AKW company and Denmark Lang Ni company (APVRASNNIEA/S) is arranged, its operation principle is: water under high pressure is divided into two the tunnel, wherein one the tunnel enter the fluidization chamber of high pressure storage tank bottom through choke valve, make the local fluidization of jar interior material, obtain the initial velocity that flows simultaneously.Another road water under high pressure enters mixing chamber, and fully mix with material slurry from the fluidization chamber, mixed slurries are transported to nozzle and are accelerated, and the material in the feed liquid is subjected to the rubbing action of nozzle wall and partly is sheared pulverizing, and further pulverize to the target body bump.
4. fine homogenizing device (preceding mixed material jet current mill), its operation principle is: make particle slurry ultra-fine or that delaminate be among the high pressure in fluid bed and produce homogenising by high-pressure installation pressurization, when slurry arrives tiny nozzle, extrude, be injected on the target body with the speed of hundreds of meters of per seconds.Because the mutual fricting shearing of particle slurry when extruding, slurry is extruded the cavitation erosion effect that pressure reduction suddenly in back is produced in addition, and particle slurry is injected in the powerful impulsive force that target body produces, make by ultra-fine particle of delaminating along cleavage between crystal layer or fault location explosion, thereby realize ultra-fine purpose of delaminating.
3. above-mentioned and 4. two kinds of ultra-fine water jet reducing mechanisms of delaminating (preceding mixed material jet current mill), though obtain higher energy efficiency, but complex structure, cost height, can not work continuously, each charging is limited, productivity ratio is low, and nozzle stops up and wearing and tearing easily, so be applicable to the pulverizing soft, and less material of raw material granularity.
5. back mixed material water fluid jet grind, its operation principle is: water under high pressure is converted into high-speed water jet through nozzle, and produces high vacuum in mixing chamber, the granule materials in the feed arrangement is sucked mixing chamber and sneaks in the water jet.In so-called collimator, water jet rock breaking becomes a large amount of water droplets, forms the PARALLEL FLOW section, and continuous and particle bumps, and the speed of granule materials is fully improved, and the collision of the particle of high-speed motion and target body causes pulverizing then.
6. self-vibration formula water fluid jet grind (back mixed material jet current mill), its operation principle is: solid jet is changed into the impact type jet of pressure fluctuation, and the high-speed water jet that water under high pressure forms through top nozzle is injected the vibration chamber, and material is sucked.Because the collar vortex that self-vibration forms stream has aggravated cavitation.When particle is sucked into the vibration chamber, also air has been brought into the vibration chamber and promoted cavitation.Jet and mixing of materials after down nozzle enter amplifier, formed the pulse cavitating jet of gas, solid, liquid three-phase.From the material particles of amplifier ejection bump mutually pulverizing chamber, and under the synergy of the erosion effect of the water hammer effect of pulsing jet, cavitation and water wedge effect, material is able to be pulverized.
5. above-mentioned and 6. hybrid jet mill structure is simple after two kinds, operation is put just, can work continuously, treating capacity is big, but also exist material particles and high-speed water jet undercompounding to some extent, the not high and problems such as classification and granularity control of energy efficiency.
Summary of the invention
The object of the present invention is to provide the high ultra-fine cavitated target type water fluid jet grind of a kind of capacity usage ratio.
To achieve these goals, the technical solution used in the present invention is: ultra-fine cavitated target type water fluid jet grind is characterized in that it comprises hopper, grinding machine cavity, granularity adjustable plate, sprays the acceleration portion of mixing, regulates and impact target body, support; Hopper is fixed on the upper end of grinding machine cavity, and hopper communicates with the ejection cavity of grinding machine cavity; The bottom of grinding machine cavity is fixed on the support;
Spraying the diffusion mixing tube that mixes acceleration portion is fixed in the diffusion mixing tube positioning seat chamber of grinding machine cavity, be provided with diffusion in the diffusion mixing tube and mix the duct, the input port that diffusion mixes the duct communicates with ejection cavity, and the delivery outlet that diffusion mixes the duct communicates with the input of the circular section gradual change runner of grinding machine cavity; The jet hole of cavitating nozzle is positioned at the input port that diffusion mixes the duct; Regulate the left side that the target body that impacts target body is positioned at the delivery outlet that sprays the diffusion mixing tube that mixes acceleration portion; Output, the classification discharge gate place of the circular section gradual change runner of grinding machine cavity are provided with the granularity adjustable plate, and the granularity adjustable plate is positioned at ejection cavity, and the adjusting rod of granularity adjustable plate and granularity adjuster is hinged; The classification discharge gate of grinding machine cavity communicates with the output of circular section gradual change runner.
The invention has the beneficial effects as follows (comparing) with existing water jet reducing mechanism:
1, the collision friction pulverization that the water jet cavitation is degraded, the water wedge stretches and diffusion mixes, and the target body compound wet method super-fine that is used for solid material of impact friction pulverization that is obstructed is pulverized the capacity usage ratio height.
2, eddy current centrifugal classification and inertia impact classification are effective to granularity control in the wet method crushing process, are convenient to granularity control.
3, more effectively be implemented in the wet method crushing process,, water fluid jet grind cleavage crush efficiency be significantly improved with impact, stretching and denudation pulverizing force mechanism to solid material.
But the granularity of 4 continuous control milling products, and ten minutes is realized the grating adjustment to product granularity easily.
5, can in crushing process, in time the material impurities be separated, realize the synchronization job of pulverizing and sorting.
6, be applicable to the nonmetallic mineral that cleavage fissure is stronger, pulverize, be particularly useful for the ultra-fine grinding of pearl mica raw material as the wet method super-fine of materials such as mica, kaolin, graphite, talcum.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the left view (external structure) of Fig. 1;
Fig. 3 is the vertical view (external structure) of Fig. 1;
Fig. 4 is along the cutaway view of E-E line among Fig. 1;
Fig. 5 is the structural representation of grinding machine cavity A of the present invention;
Fig. 6 is the left view (external structure) of Fig. 5;
Fig. 7 is along the cutaway view of F-F line among Fig. 5;
Fig. 8 is that the present invention sprays the structural representation that mixes the acceleration B of portion;
Fig. 9 is the structural representation of cavitating nozzle 8 of the present invention;
Figure 10 is the left view of Fig. 9;
Figure 11 is the right view of Fig. 9;
Figure 12 is the structural representation of the self-excitation stem stem 25 of cavitating nozzle 8 of the present invention;
Figure 13 is the left view (external structure) of Figure 12;
Figure 14 is that the present invention regulates the structural representation that impacts target body C;
Among the figure: A-grinding machine cavity; B-sprays the acceleration portion of mixing; C-regulates and impacts target body; The D-support; The 1-hopper; 2-circular section gradual change runner; The 3-overfall; 4-classification discharge gate; 5-granularity adjustable plate; 6-granularity adjuster; 7-spreads mixing tube; The 8-cavitating nozzle; The 9-ejection cavity; The first separation of 10-impurity is taken over; The secondary separation of 11-impurity is taken over; 12-granularity adjuster interface; 13-nozzle carrier socket; 14-diffusion mixing tube positioning seat chamber; 15-regulates and impacts target body cover for seat interface; 16-grinds door; 17-grinds hinge; The 18-door handle; 19-impurity secondary separation slit; 20-impurity first separation slit; The 21-nozzle seat ring; The 22-gland; 23-nozzle injection distance adjustment nut; The 24-cut-out governing is taken over; 25-nozzle self-excitation stem stem; 26-regulates and impacts the target body gland; 27-target body adjusting rod; 28-target body cover for seat; The 29-target body.
The specific embodiment
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, ultra-fine cavitated target type water fluid jet grind, it comprises hopper 1, grinding machine cavity A, granularity adjustable plate 5, granularity adjuster 6, impurity first separation adapter 10, impurity secondary separation adapter 11, mill door 16, mill hinge 17, door handle 18, the injection mixing acceleration B of portion, regulates and impact target body C, support D; Hopper 1 is fixed on the upper end (passing through bolting) of grinding machine cavity A, and hopper 1 communicates with the ejection cavity 9 of grinding machine cavity A; The bottom of grinding machine cavity A is fixed on support D and goes up (passing through bolting); Impurity first separation adapter 10, impurity secondary separation are taken over 11 and are welded on respectively on the mill door 16;
Output, classification discharge gate 4 places of the circular section gradual change runner 2 of grinding machine cavity A are provided with granularity adjustable plate 5, and granularity adjustable plate 5 is positioned at ejection cavity 9, and granularity adjustable plate 5 is hinged with the adjusting rod of granularity adjuster 6; Granularity adjuster 6 comprises body, adjusting rod, handle, adjusting rod is provided with external screw thread, body is provided with screw, the left part of body is fixed in the granularity adjuster interface 12 of grinding machine cavity A, the left end of adjusting rod revolved the screw on the body and passed adjusting rod hole and the granularity adjustable plate 5 of grinding machine cavity A hinged, and the right-hand member of adjusting rod is provided with handle.Rotary handle, the adjusting rod move left and right, the slit of the output of granularity adjustable plate 5 and circular section gradual change runner 2 dwindles and becomes big, thus but the granularity of continuous control milling product.
The leading flank of grinding machine cavity A is provided with mill door 16, and an end of mill door 16 is hinged with grinding machine cavity A by mill hinge 17, and mill door 16 is provided with door handle 18.
As Fig. 1, Fig. 5, Fig. 6, shown in Figure 7, described grinding machine cavity A is provided with circular section gradual change runner 2, overfall 3, classification discharge gate 4, ejection cavity 9, granularity adjuster interface 12, nozzle carrier socket 13, diffusion mixing tube positioning seat chamber 14, regulate and impact target body cover for seat interface 15, impurity secondary separation slit 19, impurity first separation slit 20, ejection cavity 9 is positioned at the right part of grinding machine cavity A, and { with Fig. 1 is standard, the left side is a left side, the right is right, the top is last, the below is down, after in the paper being, paper is preceding (being the right side among Fig. 2) outward }, the upper end of ejection cavity 9 is openend (openend communicates with hopper 1), the top of ejection cavity 9 communicates with overfall 3, and overfall 3 is positioned at the top of classification discharge gate 4; The input of circular section gradual change runner 2 is wide end and the left part that is positioned at grinding machine cavity A, the output of circular section gradual change runner 2 (promptly terminal) communicates for narrow end and with ejection cavity 9, the input of circular section gradual change runner 2 respectively with diffusion mixing tube positioning seat chamber 14, regulating impact target body cover for seat interface 15 communicates, diffusion mixing tube positioning seat chamber 14 is positioned at the right side of the input of circular section gradual change runner 2, regulate and impact the left side that target body cover for seat interface 15 is positioned at the input of circular section gradual change runner 2, the center line in diffusion mixing tube positioning seat chamber 14 is coaxial with the center line of regulating impact target body cover for seat interface 15; Diffusion mixing tube positioning seat chamber 14 communicates with the bottom of ejection cavity 9, the lower end of ejection cavity 9 is taken over 10 by impurity first separation slit 20 and impurity first separation and is communicated, and take over 11 by impurity secondary separation slit 19 and impurity secondary separation and communicates at the end of the input of circular section gradual change runner 2; Classification discharge gate 4 is positioned at the output of circular section gradual change runner 2, and classification discharge gate 4 communicates with the output of circular section gradual change runner 2; Granularity adjuster interface 12, nozzle carrier socket 13 lay respectively at the right side of ejection cavity 9, nozzle carrier socket 13 communicates with ejection cavity 9, granularity adjuster interface 12 is communicated with ejection cavity 9 by the adjusting rod hole, and the center line of nozzle carrier socket 13 is coaxial with the center line in diffusion mixing tube positioning seat chamber 14; The top of described circular section gradual change runner 2 is that the external arc of R1 and interior circular arc that radius is R2 are formed by radius, external arc and the different centre points of interior circular arc, the R1 value is 50～58 times of jet hole diameter d of cavitating nozzle 8, and the R2 value is 36～45 times of jet hole diameter d of cavitating nozzle 8; The bottom of circular section gradual change runner 2 is an input.
As Fig. 1, Fig. 8, Fig. 9, Figure 10, shown in Figure 11, the described injection mixing acceleration B of portion takes over 24 by diffusion mixing tube 7, cavitating nozzle 8, nozzle seat ring 21, gland 22, nozzle injection distance adjustment nut 23 and cut-out governing and forms; Diffusion mixing tube 7 is fixed on the diffusion mixing tube positioning seat chamber 14 interior (by bolting) of grinding machine cavity A, be provided with diffusion in the diffusion mixing tube 7 and mix the duct, the middle part that diffusion mixes the duct is a throat, diffusion mixes the input port diameter in duct greater than the delivery outlet diameter, diffusion mixes the delivery outlet diameter in duct greater than throat diameter, the input port that diffusion mixes the duct communicates with ejection cavity 9, and the delivery outlet that diffusion mixes the duct communicates with the input of the circular section gradual change runner 2 of grinding machine cavity A; The jet hole of cavitating nozzle 8 is positioned at the input port that diffusion mixes the duct, cavitating nozzle 8 is threaded with the left part of cut-out governing adapter 24, the middle part of cut-out governing adapter 24 is threaded on the nozzle seat ring 21, the left part of nozzle seat ring 21 is positioned at the nozzle carrier socket 13 of grinding machine cavity A, nozzle seat ring 21 is fixedlyed connected (by bolting) with grinding machine cavity A, cut-out governing is taken in 24 and is provided with aquaporin, aquaporin communicates with cavitating nozzle 8, diffusion mixing tube 7, cavitating nozzle 8, nozzle seat ring 21, it is coaxial that cut-out governing takes over 24,24 the right part nozzle injection distance adjustment nut 23 (diffusion mixing tube 7 can be regulated by nozzle injection distance adjustment nut 23 with the distance of cavitating nozzle 8) that is threaded is taken in cut-out governing, gland 22 is enclosed within cut-out governing and takes on 24, and gland 22 is between nozzle seat ring 21 and nozzle injection distance adjustment nut 23; The throat section diameter D1 of described diffusion mixing tube 7 is 2～3.5 times of jet hole diameter d of cavitating nozzle 8, the delivery outlet diameter of section D2 of diffusion mixing tube 7 is 4～7.5 times of jet hole diameter d of cavitating nozzle 8, and the length L of diffusion mixing tube 7 is 55～90 times of jet hole diameter d of cavitating nozzle 8.As shown in Figure 12 and Figure 13, cavitating nozzle 8 nested inside have nozzle self-excitation stem stem 25, the diameter of the jet hole diameter d of cavitating nozzle 8 and nozzle self-excitation stem stem 25 is by ultra-fine cavitated target type water fluid jet grind crushed work pressure and flow decision, crushed work pressure 12～40MPa.
As Fig. 1, shown in Figure 14, regulating impact target body C is made up of adjusting impact target body gland 26, target body adjusting rod 27, target body cover for seat 28, target body 29, target body 29 is positioned at the target body sliding cavity of target body cover for seat 28, and target body 29 is positioned at the left side of the delivery outlet that sprays the diffusion mixing tube 7 that mixes the acceleration B of portion; The right part of target body adjusting rod 27 is threaded with target body 29, the left part of target body adjusting rod 27 is provided with radially limited block, radially limited block is positioned at the radially stopper slot of target body cover for seat 28 left ends (restriction target body adjusting rod 27 moves radially, can only rotate), the left end of target body adjusting rod 27 passes the target body adjusting rod hole of regulate impacting on the target body gland 26, regulates to impact target body gland 26 and fixedly connected (by bolting) with the left end of target body cover for seat 28; The right part of target body cover for seat 28 is positioned at the adjusting of grinding machine cavity A and impacts target body cover for seat interface 15, and target body cover for seat 28 is fixedlyed connected (by bolting) with grinding machine cavity A.Target body 29 can move along axis target body cover for seat 28 in by rotation target body adjusting rod 27, and the adjusting range value that makes target body 29 shock surfaces and the impact distance J in the delivery outlet cross section of spreading mixing tube 7 is 1.5～6 times of jet hole diameter d of cavitating nozzle 8.
Ultra-fine cavitated target type water fluid jet grind of the present invention is pulverized the cavitation denudation of high-speed water jets and diffusion mixing tube mixed film friction effect and the target body compound wet method super-fine that is used for solid material of percussion that is obstructed; Classification is effective to granularity control in the wet method crushing process with on impurity separates with inertia impact with the eddy current centrifugal classification, and its strengthening principle and control structure are different from existing various water fluid jet grind fully.When material when hopper feeds ejection cavity, the high-speed water jet that cavitating nozzle produces sucks the material injection in the diffusion mixing tube and quickens, because the self-priming effect of cavitating nozzle, fluid pressure is lower than liquid phase saturated vapour pressure value in the high-speed jet regional area, produce liquid gasification phenomenon, when particle during near to or in contact with the bubble of crumbling and fall, under the denudation of cavitation erosion pressure, material is subjected to stretch and water wedge tension force and pulverizing; Simultaneously, material grinding acts in the diffusion mixing tube accelerator and is strengthened because of colliding the friction that reaches with the runner wall mutually; When material rushes at target body at a high speed, impact further pulverizing because of being obstructed at last.Material after repeatedly pulverizing is accelerated in circular section gradual change runner with current and imports the classification discharge gate, under the inertia force effect, thinner material is discharged from grinding machine, and thicker material is thrown back ejection cavity by the granularity adjustable plate, continues to pulverize after granularity meets the requirements and discharges as product.
Claims (9)
1. ultra-fine cavitated target type water fluid jet grind is characterized in that it comprises hopper (1), grinding machine cavity (A), granularity adjustable plate (5), sprays the acceleration portion (B) of mixing, regulates and impact target body (C), support (D); Hopper (1) is fixed on the upper end of grinding machine cavity (A), and hopper (1) communicates with the ejection cavity (9) of grinding machine cavity (A); The bottom of grinding machine cavity (A) is fixed on the support (D);
Spraying the diffusion mixing tube (7) that mixes acceleration portion (B) is fixed in the diffusion mixing tube positioning seat chamber (14) of grinding machine cavity (A), be provided with diffusion in the diffusion mixing tube (7) and mix the duct, the input port that diffusion mixes the duct communicates with ejection cavity (9), and the delivery outlet that diffusion mixes the duct communicates with the input of the circular section gradual change runner (2) of grinding machine cavity (A); The jet hole of cavitating nozzle (8) is positioned at the input port that diffusion mixes the duct; Regulate the left side that the target body (29) that impacts target body (C) is positioned at the delivery outlet that sprays the diffusion mixing tube (7) that mixes acceleration portion (B); Output, the classification discharge gate (4) of the circular section gradual change runner (2) of grinding machine cavity (A) locate to be provided with granularity adjustable plate (5), and granularity adjustable plate (5) is positioned at ejection cavity (9), and granularity adjustable plate (5) is hinged with the adjusting rod of granularity adjuster (6); The classification discharge gate (4) of grinding machine cavity (A) communicates with the output of circular section gradual change runner (2).
2. ultra-fine cavitated target type water fluid jet grind according to claim 1, it is characterized in that: the middle part in the diffusion mixing duct of diffusion mixing tube (7) is a throat, diffusion mixes the input port diameter in duct greater than the delivery outlet diameter, and diffusion mixes the delivery outlet diameter in duct greater than throat diameter.
3. ultra-fine cavitated target type water fluid jet grind according to claim 1, it is characterized in that: described grinding machine cavity (A) is provided with circular section gradual change runner (2), overfall (3), classification discharge gate (4), ejection cavity (9), granularity adjuster interface (12), nozzle carrier socket (13), diffusion mixing tube positioning seat chamber (14), regulate and impact target body cover for seat interface (15), impurity secondary separation slit (19), impurity first separation slit (20), ejection cavity (9) is positioned at the right part of grinding machine cavity (A), the upper end of ejection cavity (9) is an openend, the top of ejection cavity (9) communicates with overfall (3), and overfall (3) is positioned at the top of classification discharge gate (4); The input of circular section gradual change runner (2) is wide end and the left part that is positioned at grinding machine cavity (A), the output of circular section gradual change runner (2) is narrow end and communicates with ejection cavity (9), the input of circular section gradual change runner (2) respectively with the diffusion mixing tube positioning seat chamber (14), regulating impact target body cover for seat interface (15) communicates, diffusion mixing tube positioning seat chamber (14) is positioned at the right side of the input of circular section gradual change runner (2), regulate and impact the left side that target body cover for seat interface (15) is positioned at the input of circular section gradual change runner (2), the center line in diffusion mixing tube positioning seat chamber (14) is coaxial with the center line of regulating impact target body cover for seat interface (15); Diffusion mixing tube positioning seat chamber (14) communicates with the bottom of ejection cavity (9), the lower end of ejection cavity (9) is taken over (10) by impurity first separation slit (20) and impurity first separation and is communicated, and take over (11) by impurity secondary separation slit (19) and impurity secondary separation and communicates at the end of the input of circular section gradual change runner (2); Classification discharge gate (4) is positioned at the output of circular section gradual change runner (2); Granularity adjuster interface (12), nozzle carrier socket (13) lay respectively at the right side of ejection cavity (9), nozzle carrier socket (13) communicates with ejection cavity (9), granularity adjuster interface (12) is communicated with ejection cavity (9) by the adjusting rod hole, and the center line of nozzle carrier socket (13) is coaxial with the center line in diffusion mixing tube positioning seat chamber (14).
4. ultra-fine cavitated target type water fluid jet grind according to claim 3, it is characterized in that: the top of described circular section gradual change runner (2) is that the external arc of R1 and interior circular arc that radius is R2 are formed by radius, external arc and the different centre points of interior circular arc, the R1 value is 50～58 times of jet hole diameter d of cavitating nozzle (8), and the R2 value is 36～45 times of jet hole diameter d of cavitating nozzle (8); The bottom of circular section gradual change runner (2) is an input.
5. ultra-fine cavitated target type water fluid jet grind according to claim 1 is characterized in that: described injection mixing acceleration portion (B) takes over (24) by diffusion mixing tube (7), cavitating nozzle (8), nozzle seat ring (21), gland (22), nozzle injection distance adjustment nut (23) and cut-out governing and forms; Cavitating nozzle (8) is threaded with the left part that (24) are taken in cut-out governing, the middle part that (24) are taken in cut-out governing is threaded on the nozzle seat ring (21), the left part of nozzle seat ring (21) is positioned at the nozzle carrier socket (13) of grinding machine cavity (A), nozzle seat ring (21) is fixedlyed connected with grinding machine cavity (A), cut-out governing is taken in (24) and is provided with aquaporin, aquaporin communicates with cavitating nozzle (8), diffusion mixing tube (7), cavitating nozzle (8), nozzle seat ring (21), (24) are taken in cut-out governing is coaxial, the right part that (24) are taken in the cut-out governing nozzle injection distance adjustment nut (23) that has been threaded, gland (22) is enclosed within cut-out governing and takes on (24), and gland (22) is positioned between nozzle seat ring (21) and the nozzle injection distance adjustment nut (23).
6. ultra-fine cavitated target type water fluid jet grind according to claim 5, it is characterized in that: the throat section diameter D1 in the diffusion mixing duct of described diffusion mixing tube (7) is 2～3.5 times of jet hole diameter d of cavitating nozzle (8), the delivery outlet diameter of section D2 of diffusion mixing tube (7) is 4～7.5 times of jet hole diameter d of cavitating nozzle (8), and the length L of diffusion mixing tube (7) is 55～90 times of jet hole diameter d of cavitating nozzle (8).
7. ultra-fine cavitated target type water fluid jet grind according to claim 5 is characterized in that: described cavitating nozzle (8) nested inside has nozzle self-excitation stem stem (25).
8. ultra-fine cavitated target type water fluid jet grind according to claim 1, it is characterized in that: regulate impact target body (C) and be made up of adjusting impact target body gland (26), target body adjusting rod (27), target body cover for seat (28), target body (29), target body (29) is positioned at the target body sliding cavity of target body cover for seat (28); The right part of target body adjusting rod (27) is threaded with target body (29), the left part of target body adjusting rod (27) is provided with radially limited block, radially limited block is positioned at the radially stopper slot of target body cover for seat (28) left end, the left end of target body adjusting rod (27) passes regulates the target body adjusting rod hole of impacting on the target body gland (26), regulates impact target body gland (26) and fixedlys connected with the left end of target body cover for seat (28); The right part of target body cover for seat (28) is positioned at the adjusting of grinding machine cavity (A) and impacts target body cover for seat interface (15), and target body cover for seat (28) is fixedlyed connected with grinding machine cavity (A).
9. ultra-fine cavitated target type water fluid jet grind according to claim 1, it is characterized in that: the leading flank of grinding machine cavity (A) is provided with mill door (16), one end of mill door (16) is hinged by mill hinge (17) and grinding machine cavity (A), and mill door (16) is provided with door handle (18).
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| CN105251592B (en) * | 2015-10-31 | 2017-10-31 | 武汉纽威晨创科技发展股份有限公司 | A kind of water fluid jet grind for plant ultra-fine grinding |
| CN106179667B (en) * | 2016-07-18 | 2018-01-12 | 吉林市新大科机电技术有限责任公司 | Fine powder air-flow grinding machine |
| CN112081798B (en) * | 2020-09-08 | 2022-01-11 | 武汉理工大学 | Vortex ring generator based on centrifugation and electromagnetic ejection |
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2008
- 2008-09-28 CN CN200810197131A patent/CN100591420C/en not_active Expired - Fee Related
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| 高压水射流粉碎技术的现状. 付，胜，段，雄，高云鹏.煤炭科学技术，第29 卷第1 期. 2001 |
| 高压水射流粉碎技术的现状. 付胜，段雄，高云鹏.煤炭科学技术，第29卷第1期. 2001 * |
| 高压水射流超细粉碎技术的研究与应用. 宫伟力，安里千.中 国 粉 体 技 术，第7 卷第3期. 2001 |
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| CN101367060A (en) | 2009-02-18 |
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