CN110280404B - Cyclone classification device - Google Patents
Cyclone classification device Download PDFInfo
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- CN110280404B CN110280404B CN201910655372.0A CN201910655372A CN110280404B CN 110280404 B CN110280404 B CN 110280404B CN 201910655372 A CN201910655372 A CN 201910655372A CN 110280404 B CN110280404 B CN 110280404B
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- 238000012216 screening Methods 0.000 claims abstract description 32
- 239000011362 coarse particle Substances 0.000 claims description 36
- 239000010419 fine particle Substances 0.000 claims description 27
- 238000003466 welding Methods 0.000 claims description 3
- 230000007480 spreading Effects 0.000 claims description 2
- 239000002245 particle Substances 0.000 abstract description 7
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 239000004576 sand Substances 0.000 abstract description 6
- 230000000903 blocking effect Effects 0.000 abstract description 5
- 125000004122 cyclic group Chemical group 0.000 abstract description 3
- 230000005284 excitation Effects 0.000 abstract description 3
- 239000002002 slurry Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000009471 action Effects 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/02—Construction of inlets by which the vortex flow is generated, e.g. tangential admission, the fluid flow being forced to follow a downward path by spirally wound bulkheads, or with slightly downwardly-directed tangential admission
- B04C5/06—Axial inlets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/08—Vortex chamber constructions
- B04C5/10—Vortex chamber constructions with perforated walls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/08—Vortex chamber constructions
- B04C5/103—Bodies or members, e.g. bulkheads, guides, in the vortex chamber
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Combined Means For Separation Of Solids (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
The invention discloses a cyclone classifying device which comprises a supporting frame, a rotating device, a screening device, a vibrating device, a supporting shell and a driving device. The support frame is used for supporting rotating device, screening plant, support shell and drive arrangement, and screening plant is located the support shell, and screening plant inside top is fixed with the rotating device of coaxial line, and rotating device is driven by drive arrangement, and vibrating device is located screening plant upper portion below, provides excitation power for screening plant's vibration, and drive arrangement is located rotating device's top, provides power for rotating device's rotation. The invention can effectively avoid the phenomena of screen blocking and sand returning and fine inclusion, lighten the cyclic load, reduce the energy consumption, effectively improve the classification precision and the classification efficiency of the coarse and fine ore pulp particles, and has the advantages of small occupied area, easy operation, low cost and the like.
Description
Technical Field
The invention relates to the technical field of cyclone separation, in particular to a cyclone classification device.
Background
The classifying equipment is widely applied to separation of ore materials, coal and other materials, and has the functions of separating coarse particles, returning the coarse particles to the ball mill for regrinding, and separating fine particles by a separating system, wherein in the classifying process, the fine particles are often increased in circulating sand returning caused by inaccurate classifying precision and low classifying efficiency, the circulating and ore grinding loads are increased, the fine particle materials enter the ball mill again and are forced to excessively dissociate, so that coarse particle undergrinding, fine particle overgrinding and other problems are caused, the separating operation is not facilitated, and the recovery rate of useful minerals is reduced. Therefore, improving the grading precision and the grading efficiency of the equipment is a problem to be solved urgently, the coarse fraction content of the selected particles can be reduced by improving the grading precision, the particle grading is optimized, the reduction of sand return fine inclusion is facilitated by improving the grading efficiency, the cyclic load is reduced, the ore grinding cost and energy consumption are reduced, and the like.
In nonferrous metal beneficiation processes, the following classification equipment are common: (1) classifying by a screen: the method is precisely classified according to granularity, and is characterized by high classification precision, easy blocking of holes of a screen, serious abrasion and the like; (2) hydraulic classification: fuzzy classification according to sedimentation speed, and is characterized by simple structure, low operation cost, large occupied area, low classification precision, low classification efficiency and the like; (3) centrifugal classification: the fuzzy classification according to radial speed difference is characterized in that: the floor area is small, the treatment capacity is large, the grading efficiency is high, the grading precision is low, the energy consumption is high, the sand settling nozzle is easy to block, the use condition is strict, the cost is high, and the like; (4) screening combined with hydraulic classification: the combination of the particle size classification and the sedimentation (centrifugation) speed differential stage is characterized in that: high classification precision, high classification efficiency, low treatment capacity, high energy consumption, strict use conditions and the like.
In order to solve the problems of classification efficiency and classification accuracy of classification equipment, some solutions have been proposed in the prior patent literature. The Chinese patent with application number 201810131344.4 discloses a cyclone classification column and use it to classify pulp coarse and fine particles, and the device is classified through the screen cloth, can realize the cyclone classification of coarse particle and fine particle two products, can improve classification accuracy and classification efficiency to a certain extent, but adopts the tubular screen cloth, can't avoid the stifled hole problem of screen cloth, and coarse particle is directly discharged after the primary classification simultaneously, can not be in the inclusion of fine particle in the coarse particle. The Chinese patent with application number 201010105921.6 discloses a three-product cyclone classifying screen, the device is composed of a cylindrical guide cylinder, a cyclone cylindrical cylinder and a cyclone conical cylinder, the cyclone classifying of three products can be realized, fine particles are screened by the aid of pressure difference of the outer cyclone of a side wall under a strong centrifugal force field, circulation coarse running near the side wall and a top cover of the cyclone is eliminated, the upper limit rate in overflow and the lower limit rate in underflow are effectively controlled, classifying efficiency and handling capacity of the cyclone are improved, the screen is not prevented from blocking holes, and fine particles are inevitably mixed in coarse particles which are directly discharged.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the cyclone classification device with the vibration function, so as to prevent the phenomena of screen hole blocking and sand return and fine inclusion, reduce the cyclic load, the cost and the energy consumption, improve the classification precision and the classification efficiency of the coarse and fine ore pulp particles and overcome the defects of the prior art.
The technical problems to be solved by the invention are realized by adopting the following technical scheme.
A cyclone classifying device comprises a supporting frame, a rotating device, a screening device, a vibrating device, a supporting shell and a driving device. The screening device is positioned in the supporting shell, the top of the screening device is placed in an annular groove at the top of the supporting shell, and the bottom of the screening device is fixedly connected with the lower supporting frame; the top of the rotating device is fixedly connected with a driving device, the vibrating device is positioned below the upper part of the screening device, the middle lower part of the supporting shell is fixedly connected with the lower supporting frame, and the driving device is positioned above the top of the rotating device and fixedly connected with the upper supporting frame.
The upper support frame and the lower support frame are used for supporting the driving device, the supporting shell, the screening device and the rotating device. The upper support frame is located above the lower support frame, is connected with the lower support frame through welding, the upper end of the lower support frame is fixed on the column section below the support shell, and the lower end of the lower support frame is fixed on the ground through four support legs.
The rotating device comprises a rotating shaft, a blade shaft sleeve, a blade, a bearing and a bearing seat. The lower part of the rotating shaft is provided with a blade shaft sleeve with the same axis, and blades are arranged on the blade shaft sleeve; the rotating shaft and the blade shaft sleeve are fixedly connected through bolts, the rotating shaft is driven by the driving device, the upper part of the rotating shaft penetrates through a central through hole in the top of the supporting shell and then is mounted on the upper supporting frame through a bearing and a bearing seat through a fastener bolt, the bearing is used for supporting and fixing the rotating shaft, and the bearing seat is used for fixing and mounting the bearing.
The screening device comprises an inverted truncated cone-shaped screen, a cone section body and a guide shell. The upper part of the top of the inverted circular table-shaped screen is provided with an upper fixing frame which is arranged in a ring-shaped groove at the top of the supporting shell and used for placing and fixing the top of the inverted circular table-shaped screen, a rotating shaft and a blade shaft sleeve are coaxial, the lower part of the bottom of the inverted circular table-shaped screen is provided with a lower fixing frame which is used for placing and fixing the bottom of the inverted circular table-shaped screen, support bars parallel to the inverted circular table-shaped screen are uniformly fixed between the upper fixing frame and the lower fixing frame, the inverted circular table-shaped screen is fixedly connected with the support bars through bolts, and the support bars are 4-6; the lower fixing frame is fixedly provided with a circular positioning boss which is coaxial with the inverted circular table-shaped screen, a strip-shaped supporting bar is fixed below the circular positioning boss, the circular positioning boss is arranged at the joint of the middle part of the six supporting cross bars and the top of the cone section body, the strip-shaped supporting bar consists of six supporting cross bars which are on the same horizontal plane and uniformly spread outwards from the center, the spreading end of the cross bars is connected with the inner circle of the upper part of the lower fixing frame through bolts, and the circular positioning boss is fixedly connected with the strip-shaped supporting bar through bolts; the cone section body comprises an upper cone section body and a lower cone section body, the upper part of the upper cone section body is connected with a lower fixing frame through bolts, the bottom of the upper cone section body is arranged below a connecting plate and is connected with the connecting plate through bolts, the upper cone section body and the lower cone section body are fixedly connected through bolts, the bottom pipeline of the lower cone section body is divided into two coarse particle outlet pipelines, one coarse particle outlet pipeline is provided with a first valve for controlling the discharge of coarse particles, the coarse particle outlet pipeline is provided with a second valve, the right side of the second valve is provided with a circulating pump, the pipeline on the right side of the circulating pump is communicated with a second feeding port for circulating classification of coarse particles, and fine particles are prevented from being mixed in the coarse particles and discharged; the top of the guide shell is arranged on the outer side of the inverted circular table-shaped screen, extends along the bottom of the inverted circular table-shaped screen towards the top direction and is lower than meshes at the bottom of the inverted circular table-shaped screen, and the bottom of the guide shell is positioned above a coarse particle outlet pipeline at the bottom of the lower cone section.
The vibration device comprises a vibration motor, a telescopic supporting leg and a connecting plate. The top of the telescopic support leg is connected with the lower fixing frame through a ball hinge, the bottom of the telescopic support leg is fixedly connected with the connecting plate through bolts, four telescopic support legs are uniformly distributed between the lower fixing frame and the connecting plate, and the telescopic support leg adopts a double-acting hydraulic cylinder or a double-acting electric hydraulic cylinder or a double-acting air cylinder; the vibration motor has four, and specification model is the same completely, and even fixed mounting is in the mount bottom down, provides vibration excitation power for screening plant's vibration, and the connecting plate is arranged in the annular groove on direction shell upper portion.
The support shell comprises a first feed inlet, a second feed inlet and a shell. The first feeding port is arranged on the left side of the top of the shell, the second feeding port is arranged on the right side of the top of the shell, the shell is divided into four parts, each part is fixedly connected through bolts, the bottom of the shell is a fine particle outlet pipeline, and a third valve is arranged at the bottom of the fine particle outlet pipeline and used for controlling the discharge of fine particles; the driving device is a motor.
The blade is of a flat plate type structure, and comprises three sections along the length direction, wherein a trapezoid section is close to the root, a semicircular arc section is arranged at the tip, an arc section is arranged at the middle part, the tip inclines downwards by 8-15 degrees relative to the root, and the horizontal distance between the tip of the blade and the inverted circular-table-shaped screen is 4-6 cm.
Three blades are uniformly arranged on the same circumferential layer of the blade shaft sleeve, 8-12 layers of blades are arranged along the axial direction of the blade shaft sleeve, the odd-layer blades and the even-layer blades are arranged in a staggered manner, the angles of 6 blade roots of the adjacent odd-layer blade roots and the even-layer blade roots are more than or equal to 360 degrees, the splashing of ore pulp particles is prevented, the interval between each layer of blades is 4-8 cm, and the angle of the blade root is the angle formed by the blade root and the axis of the blade shaft sleeve.
When the cyclone separating device is used, a power switch is turned on, a frequency converter button of a rotary motor is rotated, the rotating speed of a rotating shaft is adjusted, a vibrating motor is started at the same time, slurry to be separated enters a reverse truncated cone-shaped screen from a feed inlet at a certain speed under a certain pressure, the slurry level is lower than the top end of the reverse truncated cone-shaped screen by 5-10 cm, the slurry rotates at a high speed in a cyclone separating cavity formed by a blade sleeve, a blade and the rotating shaft, fine particles move leftwards and rightwards through meshes of the reverse truncated cone-shaped screen under the action of the blade rotating at the high speed, coarse particles move downwards along the wall under the action of the blade rotating at the high speed, in order to prevent the fine particles from being mixed in the coarse particles, when the coarse particles move downwards along the wall, a second valve is opened, a circulating pump is started, the just separated coarse particles are put into the reverse truncated cone-shaped screen for separation until the fine particles mixed in the coarse particles are separated completely, then the second valve is closed, and the first valve is started, and the coarse particles are discharged; opening a third valve to discharge the fine particles; after classification is completed, stopping adding slurry into the feed inlet, supplementing water from the feed inlet, keeping the liquid level balance, stopping water inlet until clear water is in the classification device, and waiting for water to flow out; and rotating a frequency converter button of the motor, adjusting the rotating speed of the rotating shaft to 0, closing the vibrating motor, closing the power switch, and adjusting the first valve, the second valve and the third valve to a closed state.
Compared with the prior art, the cyclone classification device has the advantages that compared with hydraulic classification equipment and centrifugal classification equipment, the cyclone classification device can effectively avoid sand return and fine inclusion, lighten the circulating load, reduce the energy consumption, and has the characteristics of high classification precision, high classification efficiency and the like; compared with screen classifying equipment, the screen classifying equipment can effectively avoid the occurrence of the phenomenon of screen blocking, has the advantages of small occupied area, easy operation, low cost and the like, and can overcome the defects of the prior art.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the lower fixing frame of the present invention;
FIG. 3 is a schematic diagram of a vibration device according to the present invention;
fig. 4 is a schematic view of a blade structure according to the present invention.
Detailed Description
The invention is further described below with reference to specific embodiments and illustrations in order to make the technical means, the creation features, the achievement of the purpose and the effect achieved by the invention easy to understand.
As shown in fig. 1, a cyclone classifying device comprises a supporting frame 1, a rotating device 2, a screening device 3, a vibrating device 4, a supporting shell 5 and a driving device 6. The screening device 3 is positioned in the supporting shell 5, the top of the screening device 3 is placed in an annular groove at the top of the supporting shell 5, and the bottom of the screening device is fixedly connected with the lower supporting frame 12; the inside top of screening plant 3 be fixed with the rotary device 2 of coaxial line, the top and the drive arrangement 6 of rotary device 2 link firmly, vibrating device 4 be located screening plant 3 upper portion below, the well lower part of support shell 5 link firmly with lower carriage 12, drive arrangement 6 be located the top of rotary device 2, link firmly with upper carriage 11.
As shown in fig. 1, the upper support frame 11 and the lower support frame 12 are used for supporting the driving device 6, the support housing 5, the screening device 3 and the rotating device 2. The upper support frame 11 is located above the lower support frame 12, and is connected with the lower support frame 12 through welding, the upper end of the lower support frame 12 is fixed on a column section below the middle of the support shell 5, and the lower end of the lower support frame 12 is fixed on the ground through four support legs.
As shown in fig. 1 and 4, the rotating device 2 includes a rotating shaft 21, a blade bushing 22, a blade 23, a bearing 24, and a bearing housing 25. Wherein, the lower part of the rotating shaft 21 is provided with a vane shaft sleeve 22 with the same axis, and vanes 23 are arranged on the vane shaft sleeve 22; the rotating shaft 21 and the blade shaft sleeve 22 are fixedly connected through bolts, the rotating shaft 21 is driven by the driving device 6, the upper part of the rotating shaft 21 passes through a central through hole at the top of the supporting shell 5 and then is mounted on the upper supporting frame 11 through a bearing 24 and a bearing seat 25 through a fastener bolt, the bearing 24 is used for supporting and fixing the rotating shaft 21, and the bearing seat 25 is used for fixing and mounting the bearing 24.
As shown in fig. 1, 2 and 3, the screening device 3 comprises an inverted cone-shaped screen 31, a cone 32 and a guiding shell 33. The upper fixing frame 311 is arranged above the top of the inverted circular table-shaped screen 31 and is arranged in an annular groove at the top of the supporting shell 5 and is used for placing and fixing the top of the inverted circular table-shaped screen 31, the rotating shaft 21 and the blade shaft sleeve 22 are coaxial, the lower fixing frame 312 is arranged below the bottom of the inverted circular table-shaped screen 31 and is used for placing and fixing the bottom of the inverted circular table-shaped screen 31, supporting bars 3111 which are parallel to the inverted circular table-shaped screen 31 are uniformly fixed between the upper fixing frame 311 and the lower fixing frame 312, the inverted circular table-shaped screen 31 is fixedly connected with the supporting bars 3111 through bolts, four supporting bars 3111 are arranged on the lower fixing frame 312, a circular positioning boss 313 which is coaxial with the inverted circular table-shaped screen 31 is fixedly arranged below the circular positioning boss 313, the circular positioning boss 313 is arranged at the joint of the middle part of six supporting cross bars and the top of the cone 32, the circular positioning boss 313 is composed of six supporting cross bars which are uniformly dispersed outwards from the center, the upper end of each supporting bar is fixedly connected with the upper end of each supporting bar through the circular boss 313 through the corresponding circular boss 314; the cone section 32 comprises an upper cone section 321 and a lower cone section 322, the upper part of the upper cone section 321 is connected with the lower fixing frame 312 through bolts, the bottom of the upper cone section 321 is arranged below the connecting plate 43 and is connected with the connecting plate 43 through bolts, the upper cone section 321 and the lower cone section 322 are fixedly connected through bolts, the bottom pipeline of the lower cone section 322 is divided into two, one is a coarse particle outlet pipeline, the other is a coarse particle circulating pipeline, a first valve 3221 is arranged on the coarse particle outlet pipeline and used for controlling the discharge of coarse particles, a second valve 3222 is arranged on the coarse particle circulating pipeline, a circulating pump 3223 is arranged on the right side of the second valve 3222, and the pipeline on the right side of the circulating pump 3223 is communicated with the second feed inlet 52 and is used for circulating classification of coarse particles so as to prevent fine particles from being mixed in the coarse particles and being discharged; the top of the guiding shell 33 is arranged outside the inverted circular-cone-shaped screen 31, extends along the bottom of the inverted circular-cone-shaped screen 31 towards the top direction and is lower than the meshes of the bottom of the inverted circular-cone-shaped screen 31, and the bottom of the guiding shell 33 is positioned above the coarse particle outlet pipeline at the bottom of the lower cone 322.
As shown in fig. 1 and 3, the vibration device 4 includes a vibration motor 41, a telescopic leg 42, and a connection plate 43. The top of the telescopic support leg 42 is connected with the lower fixing frame 312 through a ball hinge, the bottom of the telescopic support leg 42 is fixedly connected with the connecting plate 43 through bolts, four telescopic support legs 42 are uniformly distributed between the lower fixing frame 312 and the connecting plate 43, and the telescopic support leg 42 adopts a double-acting hydraulic cylinder or a double-acting electric hydraulic cylinder or a double-acting air cylinder; the four vibrating motors 41 are identical in specification and model number, are uniformly and fixedly arranged at the bottom of the lower fixing frame 312, provide excitation power for vibration of the screening device 3, and are arranged in annular grooves at the upper part of the guide shell 33.
As shown in fig. 1, the support housing 5 includes a first feed port 51, a second feed port 52, and a shell 53. The first feeding port 51 is arranged on the left side of the top of the shell 53, the second feeding port 52 is arranged on the right side of the top of the shell 53, the shell 53 is divided into four parts, each part is fixedly connected through bolts, a fine particle outlet pipeline 531 is arranged at the bottom of the shell 53, and a third valve 5311 is arranged at the bottom of the fine particle outlet pipeline 531 and used for controlling fine particle discharge; the driving device 6 is a motor.
As shown in fig. 1 and 4, the blade 23 is in a flat plate type structure, and comprises three sections along the length direction, wherein a trapezoid section is close to the root, a tip is in a semicircular arc shape, an arc section is in the middle, the tip of the blade 23 is inclined downwards by 8-15 degrees relative to the root, and the horizontal distance between the tip of the blade 23 and the inverted-cone-shaped screen 31 is 4-6 cm.
As shown in fig. 1, three blades 23 are uniformly arranged on the same circumferential layer of the blade bushing 22, 8-12 layers of blades 23 are arranged along the axial direction of the blade bushing 22, the odd-layer blades 23 and the even-layer blades 23 are arranged in a staggered manner, the root angle of 6 blades 23 is larger than or equal to 360 degrees between the root of each layer of adjacent odd-layer blades 23 and the root of each layer of even-layer blades 23, the splashing of ore pulp particles is prevented, the interval between each layer of blades 23 is 4-8 cm, and the root angle of each blade 23 refers to the angle formed by the root of each blade 23 and the axis of the blade bushing 22.
When the cyclone separator is used, a power switch is turned on, a frequency converter button of a rotary motor 6 is turned on, the rotating speed of a rotary shaft 21 is regulated, a vibration motor 41 is started, slurry to be separated enters a reverse truncated cone-shaped screen 31 from a first feed port 51 at a certain speed under a certain pressure, the slurry level is lower than the top end of the reverse truncated cone-shaped screen 31 by 5-10 cm, the slurry rotates at a high speed in a cyclone separation cavity formed by a blade shaft sleeve 22, a blade 23 and the rotary shaft 21, fine particles move leftwards and rightwards through meshes of the reverse truncated cone-shaped screen 31 under the action of the blade 23 rotating at a high speed, coarse particles move downwards along the wall under the action of the blade 23 rotating at a high speed, in order to prevent the fine particles from being mixed in the coarse particles, a second valve 3222 is opened and a circulating pump 3223 is started when the coarse particles move downwards along the wall, the coarse particles just separated enter the reverse truncated cone-shaped screen 31 through the second feed port 52 to be separated again until the fine particles mixed in the coarse particles are separated by the maximum, then the second valve 3222 is closed, and the first valve 3221 is started, and the coarse particles are discharged; the third valve 5311 is opened to discharge fine particles; after classification, stopping adding slurry to the first feed inlet 51, adding water from the first feed inlet 51, keeping the liquid level balance, stopping water feeding until the interior of the screening device 3 is clear water, and waiting for water to flow out; the rotating motor 6 frequency converter button adjusts the rotation speed of the rotation shaft 21 to 0, turns off the vibration motor 41, turns off the power switch, and adjusts the first valve 3221, the second valve 3222, and the third valve 5311 to the closed state.
In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides a cyclone classification device, includes support frame, rotary device, screening plant, vibrating device, support shell and drive arrangement, its characterized in that: the screening device is positioned in the supporting shell, the top of the screening device is placed in an annular groove at the top of the supporting shell, and the bottom of the screening device is fixedly connected with the lower supporting frame; the upper part of the inside of the screening device is fixedly provided with a rotating device with a coaxial line, the top of the rotating device is fixedly connected with a driving device, the vibrating device is positioned below the upper part of the screening device, the middle lower part of the supporting shell is fixedly connected with a lower supporting frame, and the driving device is positioned above the top of the rotating device and fixedly connected with an upper supporting frame;
the upper support frame is positioned above the lower support frame, is connected with the lower support frame through welding, the driving device is fixed on the upper support frame, the upper end of the lower support frame is fixed at the lower part of the support shell, and the lower end of the lower support frame is fixed on the ground through four support legs;
the rotating device consists of a rotating shaft, a blade shaft sleeve, blades, a bearing and a bearing seat, wherein the lower part of the rotating shaft is provided with the blade shaft sleeve with the same axis, and the blades are arranged on the blade shaft sleeve; the rotating shaft is fixedly connected with the blade shaft sleeve through bolts, the rotating shaft is driven by the driving device, and the upper part of the rotating shaft penetrates through a central through hole at the top of the supporting shell and is mounted on the upper supporting frame through a bearing and a bearing seat through a fastener bolt;
the screening device consists of an inverted circular table-shaped screen, a cone section body and a guide shell, wherein an upper fixing frame is arranged above the top of the inverted circular table-shaped screen and is arranged in an annular groove at the top of a supporting shell, a lower fixing frame is arranged below the bottom of the inverted circular table-shaped screen, a supporting bar parallel to the inverted circular table-shaped screen is fixed between the upper fixing frame and the lower fixing frame, the inverted circular table-shaped screen is fixedly connected with the supporting bar through a bolt, an annular positioning boss coaxial with the inverted circular table-shaped screen is fixed on the lower fixing frame, and a bar supporting bar is fixed below the annular positioning boss; the circular positioning boss is arranged at the joint of the middle parts of the six supporting crossbars and the top of the cone section body; the top of the guide shell is arranged at the outer side of the inverted circular table-shaped screen, extends along the bottom of the inverted circular table-shaped screen towards the top direction and is lower than meshes at the bottom of the inverted circular table-shaped screen; the cone section body comprises an upper cone section body and a lower cone section body, the upper part of the upper cone section body is connected with the lower fixing frame through bolts, the bottom of the upper cone section body is arranged below the connecting plate and is connected with the connecting plate through bolts, and the upper cone section body is fixedly connected with the lower cone section body through bolts; the bottom of the guide shell is positioned above the coarse particle outlet pipeline at the bottom of the lower cone section body;
the vibrating device consists of a vibrating motor, telescopic supporting legs and a connecting plate, wherein the top of each telescopic supporting leg is connected with the lower fixing frame through a ball hinge, the bottom of each telescopic supporting leg is fixedly connected with the connecting plate through bolts, and four telescopic supporting legs are uniformly distributed between the lower fixing frame and the connecting plate; the four vibrating motors are uniformly and fixedly arranged at the bottom of the lower fixing frame, and the connecting plates are arranged in annular grooves at the upper part of the guide shell;
the support shell consists of a first feeding hole, a second feeding hole and a shell, wherein the first feeding hole is arranged on the left side of the top of the shell; the second feeding hole is arranged on the right side of the top of the shell.
2. A cyclone classification apparatus as claimed in claim 1, wherein: the blade is of a flat plate type structure, and comprises three sections along the length direction, wherein a trapezoid section is close to the root, a semicircular arc section is arranged at the tip, an arc section is arranged at the middle part, the tip inclines downwards by 8-15 degrees relative to the root, and the horizontal distance between the tip of the blade and the inverted circular-table-shaped screen is 4-6 cm.
3. A cyclone classification apparatus as claimed in claim 1, wherein: three blades are uniformly arranged on the same circumferential layer of the blade shaft sleeve, 8-12 layers of blades are arranged along the axial direction of the blade shaft sleeve, the odd-layer blades and the even-layer blades are arranged in a staggered manner, 6 blade root angles of the adjacent odd-layer blade roots and the even-layer blade roots are more than or equal to 360 degrees, the distance between each layer of blades is 4-8 cm, and the blade root angle refers to the angle formed by the blade roots and the axis of the blade shaft sleeve.
4. A cyclone classification apparatus as claimed in claim 1, wherein: the strip-shaped supporting bar consists of six supporting cross bars which are on the same horizontal plane and uniformly spread outwards from the center, the spreading ends of the cross bars are connected with the inner circle of the bottom of the inverted circular table-shaped screen mesh through bolts, and the circular positioning boss is fixedly connected with the strip-shaped supporting bar through bolts; the number of the supporting bars is 4-6.
5. A cyclone classification apparatus as claimed in claim 1, wherein: the bottom pipeline of lower cone section body divide into two, one is coarse grain outlet pipe, and another is coarse grain circulation pipeline, coarse grain outlet pipe on install first valve, install the second valve on the coarse grain circulation pipeline, the circulating pump is installed on the right side of second valve, the pipeline on circulating pump right side is linked together with the second feed inlet.
6. A cyclone classification apparatus as claimed in claim 1, wherein: the shell is divided into four parts, each part is fixedly connected through bolts, the bottom of the shell is a fine particle outlet pipeline, and a third valve is arranged at the bottom of the fine particle outlet pipeline.
7. A cyclone classification apparatus as claimed in claim 1, wherein: the four vibration motors are identical in specification and model, and the telescopic support leg adopts a double-acting hydraulic cylinder or a double-acting electric hydraulic cylinder or a double-acting air cylinder.
8. A cyclone classification apparatus as claimed in claim 1, wherein: the driving device is a motor.
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| CN201910655372.0A CN110280404B (en) | 2019-07-19 | 2019-07-19 | Cyclone classification device |
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| CN110280404B true CN110280404B (en) | 2024-01-30 |
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| KR102317123B1 (en) * | 2019-11-22 | 2021-10-22 | 에스케이씨솔믹스 주식회사 | Classifying and purifying apparatus of solid blowing agent and classifying and purifying method of solid blowing agent |
| CN111715419B (en) * | 2020-07-20 | 2024-04-05 | 安徽理工大学 | Combined type grading sedimentation device |
| CN115193598B (en) * | 2022-07-14 | 2024-01-26 | 安徽理工大学 | Coal slime classification equipment with active and passive compound turbulent vortex multistage reinforcement |
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