CN2510162Y - Water-jet superfine crushing apparatus - Google Patents
Water-jet superfine crushing apparatus Download PDFInfo
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- CN2510162Y CN2510162Y CN 01257824 CN01257824U CN2510162Y CN 2510162 Y CN2510162 Y CN 2510162Y CN 01257824 CN01257824 CN 01257824 CN 01257824 U CN01257824 U CN 01257824U CN 2510162 Y CN2510162 Y CN 2510162Y
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- water
- water jet
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- grinding device
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Abstract
The utility model provides a water jet superfine crushing device which employs the technology of high pressure water jet to crush materials. The structure of the utility model is composed of a feeding device, a vibration chamber, an accelerating tube, a crushing chamber, a support base, a chassis and the like. The vibration chamber is provided with a vibration cavity which is composed of a locating ring, a water nozzle element arranged on the front end of the locating ring and a block element arranged on the back end of the locating ring. The utility model fully employs the power of the high pressure water jet generating apparatus and the original impulse excitation to form stable pulses in the vibration chamber, intensifying the crushing effect of materials granules caused by cavitations corrosion, and the utility model is capable of extending the range of materials crushing and increasing the crushing efficiency of the materials granules via adjusting the parameter of the target distance and the like.
Description
The utility model relates to a kind of high pressure water jet that utilizes and carries out the water jet ultrafine grinding device that material is pulverized.
Utilize water-jet technology to carry out the material particles ultra-fine grinding various ways is arranged, a kind of is the reducing mechanism that utilizes the pre-mixed abrasive jet current principle, for example China Mining University's disclosed " superfine homogenizer " (CN2132562), the principle of this technology is: material particles that will be to be pulverized places a pressure pan, water under high pressure is introduced on its top, after material particles fully mixes, control valve output through its underpart, penetrate by abrasive jet with the injection water under high pressure, mix high-velocity fluid and hit target body, material particles is pulverized under percussion.Its advantage is that particle and water under high pressure mix, thereby acceleration effect is preferably arranged, and percussion is obvious; Shortcoming is need often stop in pressure pan to replenish material or to change different pressure pans, therefore can not continuous operation, in addition, its device structure complexity, operation and maintenance difficulty; A kind of is the reducing mechanism that adopts back compound abrasive fluidics, its principle is: material particles to be pulverized places a normal pressure feed bin, it is the termination hybrid chamber down, high-pressure water jet is injected hybrid chamber by nozzle, material particles is sucked jet and make it acceleration by the vacuum ejector action, after quickening, hits accelerating tube target body, cause particle to be pulverized, this technology has simple in structure, the advantage of energy continuous operation, University of Science ﹠ Technology, Beijing's disclosed " water jet ultrafine crusher " (CN2255876) and " self-vibration formula water jet ultrafine crusher " (CN2345284) belong to this device, but these disclosed technique devices are because structural reason at present, also there are following various shortcomings, comprise to form stable impulse hunting that particle can not arrive at the center of jet, acceleration effect is relatively poor, abrasive jet stops up or serious wear easily, and range can't be adjusted, and crushing effect is relatively poor etc.
The purpose of this utility model is for overcoming above-mentioned weak point, propose a kind of based on back compound abrasive fluidics, make full use of the energy of high pressure water jet equipment and original pulse excitation thereof, in vibration chamber, form stable pulse, strengthen the pulverization of cavitation corrasion to material particles, can enlarge the scope of comminuting matter by parameters such as adjustment ranges, improve the water jet ultrafine grinding device of the crush efficiency of material particles.
The utility model is achieved through the following technical solutions.The structure of designed water jet ultrafine grinding device is made up of parts such as feeding device, vibration chamber, accelerating tube, pulverizing chamber, supporting seat and bases.It is characterized in that said vibration chamber has a vibration chamber, constitute by the (operating) water nozzle member of locating ring and its front end and the stop member of its rear end, feeding mouth is arranged at the top of locating ring, this feeding mouth links to each other with the inlet seat of feeding device, the block front end is a taper seat, the circular cone center has an aperture as fluidic channel, link to each other with the catheter proximal end of accelerating tube through the pipe end cover, said pulverizing chamber has a crushing chamber, the rear end of the conduit of accelerating tube extend in the said crushing chamber, has the adjustable target body of a range in the rear end of this crushing chamber.
The vibration chamber of the utility model device is made of the (operating) water nozzle member of locating ring and its front end and the stop member of its rear end, has easy to assembly and adjusts advantage flexibly.
The cone angle of the taper seat of said block front end is θ, and its angular range can be: 60 °≤θ≤120 °, the circular cone center is d as the diameter of the aperture of fluidic channel
1, d
1=3-10d
0, d
0Diameter for water jet nozzle.
The designed vibration chamber of the utility model is by being made of the (operating) water nozzle member of locating ring and its front end and these three members of stop member of its rear end, wherein, the front end of said stop member is a cone, the cylinder that rear end socket one is identical with the nose circle cone diameter, its center has an aperture as fluidic channel, this structure is convenient to install and adjust.
Vibration chamber's structure that the utility model is designed is intended to make full use of the energy of high pressure water jet equipment and original pulse excitation thereof, forms stable pulse in vibration chamber, strengthens the pulverization of cavitation corrasion to material particles.Because the viscous effect and the external disturbance effect of real fluid, water jet enters behind the vibration chamber and on every side fluid generation momentum-exchange from (operating) water nozzle.Have the zone that velocity gradient is high near the jet-core region, in this zone, fluid produces vortex because of shear flow.Because the axisymmetric cause in flow field, eddy current exists and motion downstream with the form of collar vortex.Orderly axisymmetric disturbance (as above-mentioned collar vortex) in the jet shear layer, the pressure oscillation that can produce certain frequency during with the inward flange collision of block, this pressure wave upstream direction backpropagation.When the intrinsic frequency of forcing frequency and chamber is consistent, this perturbation wave will be exaggerated, and make jet and chamber produce resonance.
The high-pressure water jet of the utility model device is produced and introduces (operating) water nozzle by high-pressure hydraulic pump (plunger displacement pump), the water jet itself by the plunger displacement pump supercharging just has certain initial disturbance.For three-throw ram pump, the initial vibration frequency is 3 times of single plunger motion frequency, that is: f
Ini=6 π ω, wherein: f
IniBe the initial vibration frequency, ω is the plunger motion frequency.Rotating speed as drive motors is 1450rpm, then calculates f
Ini=455.53Hz.
Determine the diameter D of locating ring and the length L length of chamber (vibration be the distance of (operating) water nozzle to stop member taper seat center) in vibration chamber according to the frequency principle of correspondence, optimum design is to make its two product satisfy following formula:
Wherein: C
*Be the velocity of sound of water in the multiphase flow, d
0Be the diameter of water jet nozzle, the diameter of the water-jet discharge orifice at promptly said (operating) water nozzle member center.
Like this, because the intrinsic frequency of resonator is consistent with the initial vibration frequency, whole multiphase flow system will be at basic frequency f
IniNear stable, the fierce resonance of generation makes solid jet become pulsing jet.
Pulsing jet has been avoided the generation of water cushion effectively, and the subsequent shot drop can not hit on the water cushion that drop forms in front, has improved impact effects.
As improvement of the present utility model, the intrinsic frequency of the resonator of being made up of (operating) water nozzle member (215), locating ring (26) and block (27) can be the integral multiple of initial vibration frequency.
Generally get D=(10～15) d
0, L=(12～40) d
0
The utility model device is provided with a kind of structure of adjusting the DL value in vibration chamber, promptly at the position, front and back in said vibration chamber forward and backward adjustment ring is set.With the diameter D of locating ring get fixed after, the length L in vibration chamber can be by adjusting ring at the front and back position of (operating) water nozzle member and adjust the back and adjust ring and obtain different combinations at the front and back position of stop member before adjusting.In addition, by the size of adjustment ring vacuum in the front and back position of (operating) water nozzle can also be regulated the vibration chamber before adjusting, thus and the speed (vacuum greatly then charging is fast) of control charging.
The multiple-phase jet that produces from the vibration chamber clashes into target body in the crushing chamber in accelerating tube is injected crushing chamber, and the kinetic energy of material particles is converted into the fresh surface energy, makes the particle pulverizing.
The form of said target body can be plane, outer conical surface or other form, but its material must be high rigidity materials such as high-carbon steel or carbide alloy.Can not cause secondary pollution to powder body material.
The planar target body of outer cone is best target body form, and it can avoid the generation of water cushion effectively, and the subsequent shot drop can not hit on the water cushion that drop forms in front, has improved impact effects.
The range of said target body (range refers to the distance between mixing jet outlet and the target body) is adjustable, so that material particles and target body form stable bump, produces best impact effects.It is that the position is provided with the adjustment pad near target body that the utility model provides a kind of structure of adjusting the target body range, adjusts pad in the target body front-back direction by changing, and can obtain different ranges.
Because accelerating tube is an atmospheric pressure in the outlet of crushing chamber, the mixing jet of compositions such as material particles, bubble, water droplet will spread rapidly, so, when range is excessive, will reduce the head-on collision probability of two strands of jets, reduce crushing effect; Range is too small, then causes the heavy wear of accelerating sections outlet.So there is optimum value in the size of range.Recommending range is 2.5-10 times of d
0, d
0Diameter for water jet nozzle.
For making the material that enters the vibration chamber from inlet seat all obtain in advance pulverizing, so that bigger particle is played certain initial fragmentation, avoid obstruction to feeding mouth, and guarantee have enough air to enter crushing system with material particles, for cavitation provides gas nuclear, to strengthen the cavitation in the crushing system, the utility model also provides a kind of architecture advances to the feeding device that is installed in vibration chamber material inlet seat, promptly in said feeding device, a reciprocating drift is set, the front end of this drift has aperture, and the side has crescent, reaches among the said inlet seat.
This installs said accelerating tube, and its effect mainly is to make material particles accelerated motion under the effect of water under high pressure, the kinetic energy of water jet is converted into the kinetic energy of particle.
The accelerating tube caliber is big more, and the energy density of fluid media (medium) is low more, and water jet is poor more to the acceleration effect of material particles; Caliber is more little, and the energy density of fluid media (medium) is high more, and water jet is good more to the acceleration effect of material particles.Certainly, if when caliber reduces, material particles more easily enters the center of water jet, and is good to the acceleration effect of particle, but the on-way resistance of fluid-mixing also increases, and the water jet energy reduces gradually, and acceleration effect is bad on the contrary.So should select more suitable accelerating tube diameter, recommending the diameter of accelerating tube is 3-7.5 times of d
0, d
0Diameter for water jet nozzle.
In addition, also there is optimum value in accelerating pipe length, accelerating tube is long more, and the incorporation time of water jet and material particles is long more, and acceleration effect is good more, but the on-way resistance of fluid-mixing also increases, the water jet energy reduces gradually, causes acceleration effect to descend, so during the broken machine design of conducting powder, should select more suitable accelerating tube length, recommending accelerating pipe length is 350-700 times of d
0
The structure that the utility model adopted, particularly designed vibration cavity configuration can produce stable pulsing jet, forms stable low-pressure area in pulverizing chamber, be the breeding, come into being, swell and created condition of cavitation bubble, thereby promoted the pulverization of cavitation corrasion particle.The inceptive impulse effect that self-vibration formula water jet ultrafine crusher before this and water jet ultrafine crusher are not considered power source, attempt spontaneously to make jet produce vibration by resonator, but the intrinsic frequency of resonator is a kind of chance phenomenon concerning incoming flow, can not form stable pulsing jet.The utility model is a basis with the frequency of incoming flow, select corresponding vibration chamber parameter, guaranteed the intrinsic frequency in vibration chamber and consistent or its integral multiple of frequency of incoming flow effectively, thereby can produce stable, fierce resonance, made solid jet become pulsing jet.
The utility model has been compared following advantage with existing water jet pulverizer:
1) scope of comminuting matter is wide, is particularly suitable for the pulverizing of crisp rigid particle;
2) install inner movement-less part, few to the secondary pollution of powder body material;
3) by increasing gas nuclear etc., cavitation phenomenon is strengthened, improved crushing effect material particles;
4) can by the range of adjustment target body, thereby reach crushing effect preferably according to the character for the treatment of comminuting matter;
5) pulverization not only is confined to effect of impact, the crush efficiency height;
6) simple in structure, volume is little, can produce continuously, be easy to promote;
7) drift of feeding device can play certain first broken effect to material particles, and material size can suitably relax, and has thoroughly avoided clogging;
8) superfines can keep original shape characteristic.
Be described in further detail below in conjunction with the CONSTRUCTED SPECIFICATION of accompanying drawing embodiment of the present utility model:
Fig. 1 is the overall structure figure of this water jet ultrafine grinding device;
Fig. 2 is the feeding device part-structure figure of this water jet ultrafine grinding device;
Fig. 2 A is the enlarged drawing of the drift head among Fig. 2;
Fig. 3 is the vibration cavity segment structure chart of this water jet ultrafine grinding device;
Fig. 4 is the accelerating tube component portion separation structure figure of this water jet ultrafine grinding device;
Fig. 5 is the pulverizing chamber part-structure figure of this water jet ultrafine grinding device.
As shown in Figure 1, this water jet ultrafine grinding device is made up of feeding device (1), vibration chamber (2), accelerating tube (3), pulverizing chamber (4), supporting seat (5) and base (6) parts; Vibration chamber (2), accelerating tube (3) and pulverizing chamber (4) by about two identical supporting seats (5) be supported on the base (6), guarantee the alignment of whole fluidic channel;
In two supporting seats, left end is a hold-down support, and right supporting seat can slide on base, to satisfy the needs of different length accelerating tube.
In this water jet ultrafine grinding device, high-pressure hydraulic pump is forced into water more than the 50Mpa, through high-pressure rubber pipe, high-pressure pipe connector input vibration chamber, in vibration chamber, fully mix the formation abradant jet with water under high pressure from the material particles of feeding device, after quickening, accelerating tube is transported to pulverizing chamber, in pulverizing chamber, after high-speed jet and target body bump are pulverized, deliver to the cyclone classification device through discharging opening, do not satisfy the anti-hopper of delivering to of particle of granularity requirements, pulverize again.
The primary structure of above-mentioned each building block of this water jet ultrafine grinding device is described below:
Feeding device (1) parts, as shown in Figure 2, form by crankwheel (11), straight pin A (12), crank (13), straight pin B (14), plug (15), guide pin bushing (16), drift (17), hopper (18), inlet seat (19), motor (110), belt pulley (111), feed belt (112), frame (113), decelerator (114) and top cover (115) etc.
Form toggle by motor (110), decelerator (114), crankwheel (11), crank (13) and drift (17) etc., make drift (17) reciprocating in guide pin bushing (16); Straight pin A (12) and straight pin B (14) play position-limiting action to crank (13) and plug (15) respectively; Top cover (115) shields to mechanism; Entire mechanism is fixed on vibration chamber and the supporting seat by inlet seat (19) and frame (113).
The front end of drift (17) has aperture, the side has crescent (171) (shown in Fig. 2 A), its objective is: not only bigger particle is played certain initial fragmentation, avoided obstruction to feeding mouth, and guarantee have enough air to enter crushing system with material particles, for cavitation provides gas nuclear.
Vibration chamber (2) parts, as shown in Figure 3, adjusting ring (28), accelerating tube conduit (31), distance cover (210), compaction plug (211), right end cap (212), clamping sleeve (213), pipe end cover (214), (operating) water nozzle member (215) and left end cap (216) etc. by high-pressure pipe connector (21), nozzle boss (22), preceding adjustment ring (23), cavity (24), feeding mouth (25), locating ring (26), block (27), back forms;
Vibration chamber's cavity (24) is made of locating ring (26), block (27) and (operating) water nozzle member (215), and the feeding mouth in the locating ring (26) is connected with the inlet seat of feeding device;
Water under high pressure enters the vibration chamber through high-pressure pipe connector (21), nozzle boss (22) and (operating) water nozzle (215), the effect of entrainmenting by high-velocity flow sucks jet with material particles by feeding mouth (25), and motion downstream therewith, locating ring (26), block (27) play reflection and resonance effect; By adjusting the position of ring (23), back adjustment ring (28) before adjusting, can form the different vibration chamber of intrinsic frequency, accelerating tube conduit (31) links to each other with block (27) by pipe end cover (214), constitute the passage of multiple-phase jet, right end cap (212) makes clamping sleeve (213) location by distance cover (210); Left end cap (215) and right end cap (212) are fixed on cavity (24) inside with block (27) etc., and compaction plug (211) provides support for conduit (29).
Accelerating tube (3) parts, as shown in Figure 4.Whole accelerating tube conduit (31) is made up of three sections steel pipes, and the diameter of steel pipe and length all can be regulated, and has enlarged the scope of comminuting matter;
Said three sections steel pipes are connected by two cover fixed components, and every cover fixed component is formed by compressing screwed pipe (32), block nut (33), pipe end cover (34), stop washer (35), round nut (36) and screwed pipe (37) etc.; Compress that screwed pipe (32) and screwed pipe (37) are used for supporting and fixing accelerating tube conduit (31), block nut (33), stop washer (35) and round nut (36) etc. to accelerating tube play fastening, loosen effect, pipe end cover (34) assistance seals.Catheter length between two screwed pipes (37) can be adjusted.
Pulverizing chamber (4) parts, as shown in Figure 5, form by left gland (42), left plug screw (4 3), distance cover (44), coupling sleeve (45), right plug screw (46), top cover (47), spy-hole (48), cylinder body (49), cylinder rack (410), right gland (411), adjustment pad (412), target body (413) and discharge nozzle (414) etc.
Multiple-phase jet is injected in the crushing chamber through accelerating tube conduit (31), clash into target body (413), the kinetic energy of material particles is converted into the fresh surface energy, particle is pulverized, adjust pad (412) in target body (413) front-back direction by changing, can obtain different ranges, (range refers to the distance between mixing jet outlet and the target body), left side plug screw (43), distance cover (44), coupling sleeve (45) and right plug screw (46) play location and supporting role to accelerating tube conduit (31), and left gland (42) and right gland (411) are fixed on cylinder body (49) on the cylinder rack (410); By the spy-hole (48) on the top cover (47), can observe the situation in the crushing chamber at any time; Discharge nozzle (414) will be pulverized afterproduct and link to each other with the cyclone classification device.
Use this water jet ultrafine grinding device, by a large amount of pulverizing experiments to materials such as mica, iron scales, confirm that this reducing mechanism can form stable pulsing jet, can produce stable cavitation phenomenon in pulverizing chamber in the vibration chamber, pulverizing output to mica can reach 120kg/ hour (siccative), and the productive rate below-200 orders is more than 40%, productive rate below-325 orders has very high crush efficiency more than 15%.
Claims (9)
1. water jet ultrafine grinding device, comprise feeding device (1), vibration chamber (2), accelerating tube (3), pulverizing chamber (4), supporting seat (5) and base (6), it is characterized in that said vibration chamber (2) has a vibration chamber, constitute by the (operating) water nozzle member (215) of locating ring (26) and its front end and the stop member (217) of its rear end, feeding mouth (25) is arranged at the top of locating ring (26), this feeding mouth links to each other with the inlet seat (19) of feeding device (1), block (217) front end is a taper seat, the circular cone center has an aperture as fluidic channel, link to each other with conduit (31) front end of accelerating tube (3) through pipe end cover (214), said pulverizing chamber (4) has a crushing chamber, the rear end of the conduit of accelerating tube (31) extend in the said crushing chamber, has the adjustable target body of a range (413) in the rear end of this crushing chamber.
2. water jet ultrafine grinding device according to claim 1 is characterized in that the cone angle of the taper seat of said block (217) front end is θ, and 60 °≤θ≤120 °, the circular cone center is d as the diameter of the aperture of fluidic channel
1, d
1=3-10d
0, d
0Diameter for said (operating) water nozzle water-jet discharge orifice.
3. water jet ultrafine grinding device according to claim 1 is characterized in that the diameter D of said locating ring (26) and the length L in vibration chamber are respectively: D=(10～15) d
0, L=(12～40) d
0, d
0Diameter for said (operating) water nozzle water-jet discharge orifice.
4. water jet ultrafine grinding device according to claim 1 and 2 is characterized in that the product of the length L in the diameter D of said locating ring (26) and said vibration chamber satisfies following formula:
Wherein: d
0Be the diameter of (operating) water nozzle water-jet discharge orifice, C
*Be the velocity of sound of water in the multiphase flow, f
IniBe the initial vibration frequency.
5. water jet ultrafine grinding device according to claim 1, the position, front and back that it is characterized in that the vibration chamber of said vibration chamber (2) are respectively equipped with in order to the preceding adjustment ring (23) of the length L of adjusting the vibration chamber and back adjustment and encircle (8).
6. water jet ultrafine grinding device according to claim 1, it is planar to it is characterized in that said target body (413) is outer cone.
7. water jet ultrafine grinding device according to claim 1, the range that it is characterized in that said target body (413) are 2.5-10 times of d
0, d
0Diameter for water jet nozzle.
8. water jet ultrafine grinding device according to claim 1 is characterized in that the rear end of said target body (413) is provided with in order to adjust the adjustment pad (412) of range.
9. water jet ultrafine grinding device according to claim 1, it is characterized in that in the said feeding device (1) a reciprocating drift (17) being arranged, the front end of this drift has aperture, the side has crescent, reaches among the said inlet seat (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01257824 CN2510162Y (en) | 2001-11-06 | 2001-11-06 | Water-jet superfine crushing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01257824 CN2510162Y (en) | 2001-11-06 | 2001-11-06 | Water-jet superfine crushing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2510162Y true CN2510162Y (en) | 2002-09-11 |
Family
ID=33666507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01257824 Expired - Fee Related CN2510162Y (en) | 2001-11-06 | 2001-11-06 | Water-jet superfine crushing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2510162Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100406127C (en) * | 2006-08-30 | 2008-07-30 | 西安理工大学 | Combined hydraulic ultrafine powder grinding device |
| CN107855197A (en) * | 2017-11-10 | 2018-03-30 | 内蒙古科技大学 | A kind of copper mine, Pb-Zn deposits throw tail method |
| CN113145266A (en) * | 2021-05-07 | 2021-07-23 | 嘉兴允儿环保科技有限公司 | Superfine powder preparation system based on fluid is smashed |
-
2001
- 2001-11-06 CN CN 01257824 patent/CN2510162Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100406127C (en) * | 2006-08-30 | 2008-07-30 | 西安理工大学 | Combined hydraulic ultrafine powder grinding device |
| CN107855197A (en) * | 2017-11-10 | 2018-03-30 | 内蒙古科技大学 | A kind of copper mine, Pb-Zn deposits throw tail method |
| CN113145266A (en) * | 2021-05-07 | 2021-07-23 | 嘉兴允儿环保科技有限公司 | Superfine powder preparation system based on fluid is smashed |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |