CN104826793A - Reciprocating type vertical oscillation electric screening machine and application method thereof - Google Patents
Reciprocating type vertical oscillation electric screening machine and application method thereof Download PDFInfo
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- CN104826793A CN104826793A CN201510240760.4A CN201510240760A CN104826793A CN 104826793 A CN104826793 A CN 104826793A CN 201510240760 A CN201510240760 A CN 201510240760A CN 104826793 A CN104826793 A CN 104826793A
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- screen cloth
- screen
- screening
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- lower bolster
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
- B07B1/34—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens jigging or moving to-and-fro perpendicularly or approximately perpendiculary to the plane of the screen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
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- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses a reciprocating type vertical oscillation electric screening machine and an application method thereof. The reciprocating type vertical oscillation electric screening machine comprises a bearing device, a screen fixing device, a driving device and a screen group device, wherein the bearing device comprises a base, a support spring, a support rod and a slide strut; the screen fixing device comprises a netted tray, a screen fixing post, a screen fixing cross, a horizontal rod, a lower bolster, a lower bolster press bolt, a lower bolster traction piece, a screen linkage rod and a linkage rod sliding ring; the driving device comprises a motor, a motor turntable and a driving rod; the screen group device is formed by at least one group of screen chassis, standard screen and screen cover which are overlapped from bottom to top in sequence; when the screen group device screens, the screen group device is located in a space formed by the screen fixing post, the netted tray and the screen fixing cross. According to the device, the screening efficiency and the screening precision can be both improved, and the various functions, such as single-sample single-stage dry screening, multi-sample single-stage dry screening, single-sample multi-stage dry screening, single-sample single-stage wet screening and single-sample multi-stage wet screening, are simultaneously achieved.
Description
Technical field
The invention belongs to material sieving technology field, relate to a kind of shaking screen extension set, especially reciprocating vertical vibration electric screen grader and using method thereof.
Background technology
In the fields such as agrology, environmental science, agronomy, often needing being sieved by standard screen after the sample comminution such as soil, plant, then just can carry out element chemical examination and chemical analysis; Part Experiment also needs to sieve the solid particulate matter in water sample, and then realizes the objects such as separation, collection or classification.
Present stage, mostly the screening of above experimentation is that personnel manually sieve by experiment, can only process a sample generally at every turn, and screening efficiency is low, and expend time in length; And the amplitude, degree, precision, dynamics etc. of screening affect greatly by experiment operator individual difference, introduce human error, reduce screening precision.A lot of sample screening process easily causes dust to waft in air, has harm after suction to experimenter's health.Wet screening process, mainly through screening of artificially vibrating up and down, due to dynamics and the frequency instability of different experiments operating personnel, causes sample particle (as soil agreegate etc.) to destroy, adds experimental error.
Existing screening plant mostly is main equipment, adapt to factorial praluction, the requirement that experimental analysis is accurate, quantitative, micro-can not be adapted to, and mostly be horizontal reciprocating vibration, when being applied to material sieving technology, when the standard screen aperture be especially equipped with is less, the sample particle more bigger than standard screen aperture used near screen cloth, diameter often blocks standard screen sieve aperture, cause its screening efficiency lower, it is longer to sieve the time used completely, is even difficult to accomplish to sieve completely.
Meanwhile, also there is following problem in existing testing sieve separating device: 1. complex structure, and cost is higher; 2. complex operation, inefficiency; 3. install, dismantle, clean inconvenience; 4. easy-clear is unclean to sieve sample, easily pollutes subsequent sample.
Summary of the invention
The technical problem solved: in order to overcome the deficiency of existing screening plant and oscillation device, reduce the use of human resources in the sample treatment stage, the invention provides a kind of reciprocating vertical vibration electric screen grader and using method thereof, this device can not only improve screening efficiency, and can also screening precision be improved, the several functions such as monocyte sample single-stage dry screen, Multi-example single-stage dry screen, the multistage dry screen of monocyte sample, monocyte sample single-stage wet screening, the multistage wet screening of monocyte sample can be realized simultaneously.
Technical scheme: reciprocating vertical vibration electric screen grader, is made up of bearing device, screen fixing device, drive unit, screen cloth group device, bearing device comprises base, support spring, support bar and slip pole, described support spring is uniformly distributed in the upper surface of base, vertical support bar and slip pole are located at the edge of base, comparatively support bar is closer to base center for slip pole, and slip pole upper end is provided with the trace support ring just connect, screen fixing device comprises netted pallet, vertical rod fixed by screen cloth, screen cloth fixed cross frame, horizon bar, lower bolster, lower bolster compression screw, lower bolster pull tab, screen cloth trace and trace slip ring, described netted pallet is located on support spring, screen cloth trace is located on netted pallet through trace support ring, the top of screen cloth trace is provided with screen cloth trace T-shaped projection, trace slip ring is located at middle part and the bottom of screen cloth trace respectively, and be located on slip pole, at least two screen clothes are fixed vertical rod and are distributed on the edge of netted pallet, screen cloth fixed cross frame and screen cloth are fixed the two ends that vertical rod contacts and are slidably connected, the two ends that vertical rod contacts do not fixed by screen cloth fixed cross frame with screen cloth be horizon bar, lower bolster is connected with by lower bolster pull tab below horizon bar, horizon bar there is the lower bolster compression screw that a group is evenly distributed, drive unit comprises motor, motor rotating disk and drive rod, motor is positioned at the top of support bar, motor rotating disk is connected with the rotating shaft of motor, and motor rotating disk is provided with rotating disk T-shaped projection close to the outer surface of circumference, the two ends of drive rod respectively with screen cloth trace T-shaped projection and rotating disk T-shaped projection hinged, screen cloth group device is made up of at least one group of the screen cloth chassis superposed successively from bottom to top, standard screen and screen cloth lid, and is positioned at screen cloth and fixes within vertical rod, netted pallet and the administrative space of screen cloth fixed cross frame during the screening of screen cloth group device.
Described screen cloth fixed cross frame and screen cloth are fixed the two ends that vertical rod contacts and are provided with Ω shape opening, and screen cloth is fixed vertical rod and be stuck in mouth, Ω shape open outer side has cross fixed screw.
Described motor is provided with speed governing knob.
The adjustable in length of vertical rod, support bar, screen cloth trace, slip pole fixed by described screen cloth.
The part that described netted pallet directly contacts with screen cloth group device with lower bolster is provided with padded coaming.
For wet screening after described netted pallet and standard screen combine, wherein, the outer layer covers padded coaming of netted pallet.
The speed adjustable range of described motor is 0 ~ 300 rev/min, and controlling dry screen rotating speed is 20 ~ 300 revs/min, and wet screening rotating speed is for being no more than 40 revs/min.
Described netted pallet outer ring is bonding jumper framework, and inside is netted or parallel shape; The mesh aperture of its inner mesh portion is 1cm; Or parallel portion spacing is 1cm; Net or the parallel shape structure bar of described netted pallet are formed by the metal wire knitted of outer layer covers padded coaming, or by after metallic plate hollow out, outer layer covers padded coaming; Outer layer covers material selection rubber, latex or silica gel; Wire or metallic plate select irony or steel.
The using method of reciprocating vertical vibration electric screen grader, the step of dry screen is: before screening, is placed on by sample in the standard screen of the superiors, builds screen cloth lid, is placed on by standard screen on screen cloth chassis, composition screen cloth group device; Cross fixed screw is turned on, unscrews lower bolster compression screw, screen cloth fixed cross frame is slid into screen cloth and fixes above vertical rod, screen cloth assembling is seated on netted pallet; Put down screen cloth fixed cross frame to cover in screen cloth, tighten the cross fixed screw at two ends; Tighten lower bolster compression screw, make screen cloth group device be stably fixed on netted pallet; Regulate speed governing knob, start the work of sieving; Situation per sample, regulate motor speed at 20 ~ 300 revs/min, the time is 1 ~ 3min; After screening terminates, close compound vertical vibration electric screen grader by speed governing knob; Vibration is unscrewed cross fixed screw, is carried on screen cloth fixed cross frame, take off screen cloth group device after stopping; By the sample packing in standard screen and screen cloth chassis; With hairbrush, standard screen and screen cloth chassis are cleaned down.
The using method of reciprocating vertical vibration electric screen grader, the step of wet screening is: before screening, is placed on by sample in the standard screen of the superiors, needs to add standard screen according to screening, composition screen cloth group device; Cross fixed screw is turned on, unscrews lower bolster compression screw, screen cloth fixed cross frame is slid into screen cloth and fixes above vertical rod, screen cloth assembling is seated on netted pallet; Put down screen cloth fixed cross frame to cover in screen cloth, tighten the cross fixed screw at two ends; Tighten lower bolster compression screw, ensure that screen cloth group device is stably fixed on netted pallet further; Whole compound vertical vibration electric screen grader is put into tank or bucket; Water filling in tank or bucket, the water surface with the upper edge of just Mei Guo the superiors screen cloth, and is not as the criterion higher than motor; Regulate speed governing knob, start the work of sieving; Situation per sample, regulate motor speed below 40 revs/min, the time is no less than 2min; After screening terminates, close compound vertical vibration electric screen grader by speed governing knob; Vibration is unscrewed cross fixed screw, is carried on screen cloth fixed cross frame, take off screen cloth group device after stopping; By the sample packing in standard screen; With hairbrush and clear water, standard screen is cleaned up.
The attainable function of the present invention and required applicable screen cloth situation as follows:
1, monocyte sample single-stage dry screen
1, screen cloth lid, standard screen 1, screen cloth bottom 1
2, Multi-example single-stage dry screen
N number of sample (N >=2): (1, screen cloth lid, standard screen 1, screen cloth bottom 1) × N
3, the multistage dry screen of monocyte sample
1, screen cloth lid, standard screen N number of (N >=2, according to classification needs, mesh size reduces successively from top to bottom, as being followed successively by 10 orders, 20 orders, 40 orders, 100 orders etc.), screen cloth bottom 1
4, monocyte sample single-stage wet screening
Standard screen 1
5, the multistage wet screening of monocyte sample
Standard screen N number of (N >=2, according to classification needs, mesh size reduces successively from top to bottom, as being followed successively by 10 orders, 20 orders, 40 orders, 100 orders etc.)
Vibration power resources when the present invention works are in electric machine rotation, concrete drive pattern is driven by motor motor turntable rotation, T-shaped projection on motor rotating disk is as driving fulcrum one, kinetic energy is transmitted to drive rod, drive rod further by driving fulcrum two by T-shaped projection short in kinetic energy transmission and screen cloth trace, and then is delivered to whole screen cloth group device and screen fixing device.
As shown in Figure 6, with the diameter of motor rotating disk for R, the distance in rotating disk T-shaped projection and the rotating disk center of circle is r to the enlarged drawing of motor rotating disk, then motor often rotates once, and the amplitude driving lower end screen cloth trace is 2r, with each cycle required time for T.Again, when after the installation of screen cloth group device, when motor rotating disk T-shaped projection is positioned at bottom, the position of screen cloth trace is 0 point, moves upward as positive direction,
Then, the motion of screen cloth trace (comprising screen cloth group device) meets sine trigonometric function equation, and its equation of motion is:
In formula:
T---time of vibration, s; T ∈ [0 ,+∞);
T---electric machine rotation cycle, s;
R---motor dial rotation radius, cm;
Y---vibration displacement, cm; Y ∈ [0,2r];
Be ordinate with y, take t as abscissa, represent a vibration period, represent the radius of gyration with r with T, the equation of motion curve of screen cloth trace as shown in Figure 7.
Beneficial effect:
1, artificial input can be reduced, reduce labour intensity.
2, directly can utilize the standard screen that existing diameter is 10cm and 20cm, screen cloth is without the need to special facture.
3, vertical rod fixed by screen cloth, support bar, screen cloth trace, slip pole can be customized to different length according to actual conditions, can add the operation simultaneously of more standard screen, improve operating efficiency.
4, flexible function is various.By increase and decrease screen cloth quantity, or pass through the combination of screen cloth, screen cloth chassis, screen cloth lid, the several functions such as monocyte sample single-stage dry screen, Multi-example single-stage dry screen, the multistage dry screen of monocyte sample, monocyte sample single-stage wet screening, the multistage wet screening of monocyte sample can be realized.
5, of many uses.Can be used for the screening of the various materials such as soil sample, soil agreegate, plant sample, fertilizer, seed, test drug.
6, both can ensure screening efficiency, the relative fullness of sample particle when can ensure to greatest extent again to sieve, especially during wet screening.
7, use common electric machine, do not use vibrating motor, effectively can reduce noise.
8, all there is colloid padded coaming on netted tray surface and lower bolster surface, both can reinforce screen cloth group device, can reduce again to sieve noise.
9, vertical vibration screening, can improve screening efficiency, accelerates laboratory sample treatment progress.
10, be connected with support spring between base with netted pallet, flexible fastening can be played to screen fixing device and screen cloth group device, oscillatory hollow can be provided for vertical vibration screening again.
11, reduce sample screening error, screening is more complete, and screening effect is more unified.
12, easy to operate.Testing sieve timesharing, screen cloth group device is mainly laid and taken off to action required, and operation is very easy.
13, safe and efficient.Whole screening machine electricity consumption part concentrates on top, reduces the danger of electric leakage to greatest extent, and time especially for wet screening, this point is particularly important.
14, structure is simple, cheap.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described, but present subject matter is not limited to these embodiments, wherein:
Fig. 1 is structure chart of the present invention;
Fig. 2 is front view of the present invention;
Fig. 3 is side view of the present invention;
Fig. 4 is screen cloth group device schematic diagram; A monocyte sample single-stage dry screen screen cloth group in figure, B Multi-example single-stage dry screen screen cloth group, C monocyte sample multistage dry screen screen cloth group, D monocyte sample single-stage wet screening screen cloth group, E monocyte sample multistage wet screening screen cloth group;
Fig. 5 is screen cloth group of the present invention arrangement schematic diagram; In figure, A installs 20cm standard screen top view, and B installs one group of 10cm standard screen top view, and C installs two groups of 10cm standard screen top views, and D installs four groups of 10cm standard screen top views;
Fig. 6 one embodiment of the present of invention;
Fig. 7 is motor rotating disk enlarged diagram of the present invention;
Fig. 8 is equation of motion curve map of the present invention.
In figure:
1. base; 2. support spring; 3. support bar; 4. slip pole; 5. trace support ring; 6. motor; 7. speed governing knob; 8. motor rotating disk; 9. rotating disk T-shaped projection; 10. drive rod; 11. screen cloth trace T-shaped projections; 12. screen cloth traces; 13. trace slip rings; Vertical rod fixed by 14. screen clothes; 15. screen cloth fixed cross framves; 16. horizon bars; 17. lower bolsters; 18. lower bolster compression screws; 19. lower bolster pull tab; 20. cross fixed screws; 21. netted pallets; 22. screen cloth lids; 23. standard screens; 24. screen cloth chassis.
Detailed description of the invention
Following examples further illustrate content of the present invention, but should not be construed as limitation of the present invention.Without departing from the spirit and substance of the case in the present invention, the amendment do the inventive method, step or condition and replacement, all belong to scope of the present invention.If do not specialize, the conventional means that technological means used in embodiment is well known to those skilled in the art.
Embodiment 1
Reciprocating vertical vibration electric screen grader, is made up of bearing device, screen fixing device, drive unit, screen cloth group device, bearing device comprises base 1, support spring 2, support bar 3 and slip pole 4, described support spring 2 is uniformly distributed in the upper surface of base 1, vertical support bar 3 and slip pole 4 are located at the edge of base 1, comparatively support bar 3 is closer to base center for slip pole 4, and slip pole upper end is provided with the trace support ring 5 just connect, screen fixing device comprises netted pallet 21, vertical rod 14 fixed by screen cloth, screen cloth fixed cross frame 15, horizon bar 16, lower bolster 17, lower bolster compression screw 18, lower bolster pull tab 19, screen cloth trace 12 and trace slip ring 13, described netted pallet 21 is located on support spring 2, screen cloth trace 12 is located on netted pallet 21 through trace support ring 5, the top of screen cloth trace 12 is provided with screen cloth trace T-shaped projection 11, trace slip ring 13 is located at middle part and the bottom of screen cloth trace 12 respectively, and be located on slip pole 4, at least two screen clothes are fixed vertical rod 14 and are distributed on the edge of netted pallet 21, screen cloth fixed cross frame 15 and screen cloth are fixed the two ends that vertical rod 14 contacts and are slidably connected, the two ends that vertical rod 14 contacts do not fixed by screen cloth fixed cross frame 15 with screen cloth be horizon bar 16, lower bolster 17 is connected with by lower bolster pull tab 19 below horizon bar 16, horizon bar 16 there is the lower bolster compression screw 18 that a group is evenly distributed, drive unit comprises motor 6, motor rotating disk 8 and drive rod 10, motor 6 is positioned at the top of support bar 3, motor rotating disk 8 is connected with the rotating shaft of motor 6, motor rotating disk 8 is provided with rotating disk T-shaped projection 9 close to the outer surface of circumference, the two ends of drive rod 10 respectively with screen cloth trace T-shaped projection 11 and rotating disk T-shaped projection 9 hinged, screen cloth group device is made up of at least one group of the screen cloth chassis 24 superposed successively from bottom to top, standard screen 23 and screen cloth lid 22, and is positioned at screen cloth and fixes within vertical rod 14, netted pallet 21 and the administrative space of screen cloth fixed cross frame 15 during the screening of screen cloth group device.
Described screen cloth fixed cross frame 15 and screen cloth are fixed the two ends that vertical rod 14 contacts and are provided with Ω shape opening, and screen cloth is fixed vertical rod 14 and be stuck in mouth, Ω shape open outer side has cross fixed screw 20.
Described motor 6 is provided with speed governing knob 7.
The adjustable in length of vertical rod 14, support bar 3, screen cloth trace 12, slip pole 4 fixed by described screen cloth.
The part that described netted pallet 21 directly contacts with screen cloth group device with lower bolster 17 is provided with padded coaming.
For wet screening after described netted pallet 21 combines with standard screen 23, wherein, the outer layer covers padded coaming of netted pallet 21.
The speed adjustable range of described motor is 0 ~ 300 rev/min, and controlling dry screen rotating speed is 20 ~ 300 revs/min, and wet screening rotating speed is for being no more than 40 revs/min.
The using method of reciprocating vertical vibration electric screen grader, the step of dry screen is: before screening, is placed on by sample in the standard screen 23 of the superiors, builds screen cloth lid 22, is placed on by standard screen 23 on screen cloth chassis 24, composition screen cloth group device; Cross fixed screw 20 is turned on, unscrews lower bolster compression screw 18, screen cloth fixed cross frame 15 is slid into screen cloth and fixes above vertical rod 14, screen cloth assembling is seated on netted pallet 21; Put down screen cloth fixed cross frame 15 on screen cloth lid 22, tighten the cross fixed screw 20 at two ends; Tighten lower bolster compression screw 18, make screen cloth group device be stably fixed on netted pallet 21; Regulate speed governing knob 7, start the work of sieving; Situation per sample, regulate motor 6 rotating speed at 20 ~ 300 revs/min, the time is 1 ~ 3min; After screening terminates, close compound vertical vibration electric screen grader by speed governing knob 7; Vibration is unscrewed cross fixed screw 20, is carried on screen cloth fixed cross frame 15, take off screen cloth group device after stopping; By the sample packing in standard screen 23 and screen cloth chassis 24; With hairbrush, standard screen 23 and screen cloth chassis 24 are cleaned down.
The using method of reciprocating vertical vibration electric screen grader, the step of wet screening is: before screening, is placed on by sample in the standard screen 23 of the superiors, needs to add standard screen according to screening, composition screen cloth group device; Cross fixed screw 20 is turned on, unscrews lower bolster compression screw 18, screen cloth fixed cross frame 15 is slid into screen cloth and fixes above vertical rod 14, screen cloth assembling is seated on netted pallet 21; Put down screen cloth fixed cross frame 15 on screen cloth lid 22, tighten the cross fixed screw 20 at two ends; Tighten lower bolster compression screw 18, ensure that screen cloth group device is stably fixed on netted pallet 21 further; Whole compound vertical vibration electric screen grader is put into suitable tank or bucket; Water filling in tank or bucket, the water surface with the upper edge of just Mei Guo the superiors screen cloth, and is not as the criterion higher than motor; Regulate speed governing knob 7, start the work of sieving; According to Wang Xiuying etc., (soil water stability macro aggregate assay method is summarized, China's soil and water conservation science, 2011,9 (3): 106-113) method summed up, in conjunction with sample situation, duration of oscillation is defined as being no less than 2min, and frequency of oscillation is defined as being no more than 40 beats/min, and namely motor 6 rotating speed is no more than 40 revs/min; After screening terminates, close compound vertical vibration electric screen grader by speed governing knob 7; Vibration is unscrewed cross fixed screw 20, is carried on screen cloth fixed cross frame 15, take off screen cloth group device after stopping; By the sample packing in standard screen 23; With hairbrush and clear water, standard screen 23 is cleaned up.
Embodiment 2
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of reciprocating vertical vibration electric screen grader, connect and compose successively primarily of four parts such as bearing device, screen fixing device, drive unit, screen cloth group devices, by increase and decrease screen cloth quantity, or screen cloth coordinates with screen cloth chassis, screen cloth lid etc., in conjunction with external environment condition, the multifunctional efficient screening of material and sample can be realized.Bearing device comprises base 1, support spring 2, support bar 3, slip pole 4 etc.
Base 1 is square-shaped metal plate; At four diagonal angle inner crest face tools, four support springs 2, base 1 and support spring 2 are for just to connect; Base 1 side has vertical support bar 3 and slip pole 4, and slip pole 4 is before front support rod 3, and both and base 1 are all just connect.
Support bar 3 is cuboid metal column, is used for support drive device.
Slip pole 4 is cylindrical thin bar, smooth surface, is used for supporting screen cloth trace 12.There is rigidly connected trace support ring 5 slip pole 4 upper end, and ring set lives screen cloth trace 12, provides support for it when drive rod 10 presses down screen cloth trace 12, makes it keep vertical and is free to slide.
Screen fixing device mainly comprises netted pallet 21, vertical rod 14 fixed by screen cloth, screen cloth fixed cross frame 15, cross fixed screw 20, horizon bar 16, lower bolster 17, lower bolster compression screw 18, lower bolster pull tab 19, screen cloth trace 12, trace slip ring 13 etc.
Netted pallet 21 outer ring is bonding jumper framework, and inside is netted or parallel shape.The mesh aperture of inner mesh portion is 1cm (or parallel portion spacing is 1cm).The net (or parallel strip) of netted pallet 21 is formed by the metal wire knitted of outer layer covers padded coaming, also can by after metallic plate hollow out, outer layer covers padded coaming.Preferably, outer layer covers material can select rubber, latex, silica gel; Preferably, wire or metallic plate can select irony or steel.
Screen cloth fixes vertical rod 14 for elongate cylinder metallic rod, is fixed on netted pallet 21 both sides, with netted pallet 21 for just to connect bottom it.
The two ends that vertical rod 14 contacts fixed by screen cloth fixed cross frame 15 and screen cloth Ω shape opening, may be stuck in screen cloth and fixes in vertical rod 14.Ω shape open outer side has fixed screw 20, is on its lateral line.When cross fixed screw 20 unclamps, screen cloth fixed cross frame 15 can be fixed in vertical rod 14 up and down arbitrarily at screen cloth; When cross fixed screw 20 is tightened, screen cloth fixed cross frame will be fixed on screen cloth and fix in vertical rod 14.Through calculating, the length of two bars in length and breadth of screen cloth fixed cross frame is no less than 30cm.
Horizon bar 16 screen cloth fixed cross frame 15 is not fixed the metallic rod that vertical rod 14 contacts, and has lower bolster 17 below it.Lower bolster 17 is the bonding jumper that there is colloid padded coaming on surface, and both sides have lower bolster pull tab 19 structure to be connected with horizon bar 16, and lower bolster pull tab 19 is elastic sheet metal.Horizon bar 16 there are four lower bolster compression screws 18, form with horizon bar 16 mid point five points being evenly distributed in horizon bar 16.
Screen cloth trace 12 has just been connected on the bonding jumper framework of netted pallet 21, and with support bar 3 homonymy of base 1, in front view of the present invention, the mid point of screen cloth trace 12, slip pole 4, support bar 3 is located along the same line.In three, support bar 3 is the thickest.One horizontal T-shaped smooth structure is arranged at screen cloth trace 12 top, be screen cloth trace T-shaped projection 11, with drive rod lower end annulus hinged form drive fulcrum two.Rigidly connected trace slip ring 13 is arranged in the middle part of screen cloth trace 12 and bottom, is coated with slip pole 4, can ensures that screen cloth trace 12 is vertical and freely up and down slide.
Drive unit comprises the parts such as motor 6, speed governing knob 7, motor rotating disk 8, drive rod 10 and forms.
Motor 6 is positioned at support bar 3 top, and be ordinary electromagnetic induction conductivity, motor 6 electricity consumption is provided by electric wire.
Speed governing knob 7 is positioned at motor 6 side, and use frequency control or variable voltage speed control, for switch and the speed governing of motor 6, can control motor 6 rotating speed at 0 ~ 300 rev/min, it is marked with scale, can realize the fixing quantity of motor 6 rotating speed.
Motor rotating disk 8 is positioned at motor 6 front, and be positive circular metal dish, central point is connected to motor 6 turning cylinder, is with T-shaped smooth structure outward, is rotating disk T-shaped projection 9, with drive rod 10 upper end annulus hinged form drive fulcrum one.According to the mensuration sieve method standard of FHZDZTR0009 soil macro aggregate composition, the distance r value of rotating disk T-shaped projection center and center of turntable is 1.5cm ~ 2cm.
Drive rod 10 for two ends be circulus, one end is articulated with rotating disk T-shaped projection 9, and one end is articulated with screen cloth trace T-shaped projection 11.
Screen cloth group device is primarily of the standard screen 23 of varying number and the formation such as screen cloth lid 22, screen cloth chassis 24.
The concrete combined situation of screen cloth group device and standard screen quantity service condition, experimentally demand determines.By increasing and decreasing standard screen 23 quantity flexibly, or standard screen 23 coordinates with screen cloth lid 22, screen cloth chassis 24 etc., realizes difference in functionality.
Embodiment 3
Dry screen:
Adopt the device in embodiment 1 or 2, structure as shown in Figure 6.Screen cloth group device used as shown in A, B, the C in Fig. 4, but is not limited to the applicable cases of A, B, C.
Two pole lengths in length and breadth of screen cloth fixed cross frame 15 are no less than 30cm, and motor disk diameter is about 4cm.
Experimentally need, choose the standard screen 23 needing aperture, as 10 orders, 20 orders, 40 orders, 60 orders, 100 orders, 270 orders etc.The diameter of standard screen is 10cm or 20cm.Motor disk diameter is about 4cm.
When application diameter is the standard screen of 20cm, can fix one group of screen cloth group in screen cloth group fixture, its schematic top plan view is as shown in the A figure in Fig. 5.When to apply diameter be the standard screen of 10cm, can fix the identical screen cloth groups such as a group, two groups, four groups in screen cloth group fixture, its schematic top plan view is as shown in B, C, the D in Fig. 5.
Close can realize following functions by different screen cloth group device:
(1) monocyte sample single-stage dry screen
1, screen cloth lid, standard screen 1, screen cloth bottom 1
(2) Multi-example single-stage dry screen
N number of sample (N >=2): (1, screen cloth lid, standard screen 1, screen cloth bottom 1) × N
(3) the multistage dry screen of monocyte sample
1, screen cloth lid, standard screen N number of (N >=2, according to classification needs, mesh size reduces successively from top to bottom, as being followed successively by 10 orders, 20 orders, 40 orders, 100 orders, 270 orders etc.), screen cloth bottom 1
Concrete steps:
1, test sieve extension set, ensure safety, guarantee can normally work.
2, before screening, sample (pulverize or grinding, or direct sample etc.) is placed in the standard screen 23 of the superiors, builds screen cloth lid 22, standard screen 23 is placed on screen cloth chassis 24, composition screen cloth group device.
3, cross fixed screw 20 is turned on, unscrew lower bolster compression screw 18, screen cloth fixed cross frame 15 is slid into screen cloth and fixes above vertical rod 14, screen cloth assembling is seated on netted pallet 21.Put down screen cloth fixed cross frame 15 on screen cloth lid 22, tighten the cross fixed screw 20 at two ends.
4, tighten lower bolster compression screw 18, ensure that screen cloth group device is stably fixed on netted pallet 21 further.
5, start speed governing knob 7, start the work of sieving.Situation per sample, regulate motor 6 rotating speed at 20 ~ 300 revs/min, the time is 1 ~ 3min.
6, after screening terminates, screening machine is closed by speed governing knob 7.
7, after stopping, unscrewing cross fixed screw 20, carry on screen cloth fixed cross frame 15, take off screen cloth group device.By the sample packing in standard screen 23 and screen cloth chassis 24.
8, with hairbrush, standard screen 23 and screen cloth chassis 24 are cleaned down.
9,1 ~ 8 process is repeated.
When table 1 the present invention carries out dry screen and the comparative analysis of existing apparatus applicable cases
Embodiment 4
Wet screening:
Adopt the device in embodiment 1 or 2, similar in Fig. 6, but does not comprise screen cloth lid 22 and screen cloth chassis 24.Screen cloth group device used as shown in D, the E in Fig. 4, but is not limited to the applicable cases shown in D, E.
Two pole lengths in length and breadth of screen cloth fixed cross frame 15 are no less than 30cm, and motor disk diameter is about 4cm.
Experimentally need, choose the standard screen 23 needing aperture, as 10 orders, 20 orders, 40 orders, 60 orders, 100 orders, 270 orders etc.The diameter of standard screen is 10cm or 20cm.
When application diameter is the standard screen of 20cm, can fix one group of screen cloth group in screen cloth group fixture, its schematic top plan view is as shown in the A figure in Fig. 5.When to apply diameter be the standard screen of 10cm, can fix the identical screen cloth groups such as a group, two groups, four groups in screen cloth group fixture, its schematic top plan view is as shown in B, C, the D in Fig. 5.
Close can realize following functions by different screen cloth group device:
(1) monocyte sample single-stage wet screening
Standard screen 1
(2) the multistage wet screening of monocyte sample
Standard screen N number of (N >=2, according to classification needs, mesh size reduces successively from top to bottom, as being followed successively by 10 orders, 20 orders, 40 orders, 100 orders etc.)
Concrete steps:
1, test sieve extension set, ensure safety, guarantee can normally work.
2, before screening, sample (pulverize or grinding, or direct sample etc.) is placed in the standard screen 23 of the superiors, needs to add standard screen according to screening, composition screen cloth group device.
3, cross fixed screw 20 is turned on, unscrew lower bolster compression screw 18, screen cloth fixed cross frame 15 is slid into screen cloth and fixes above vertical rod 14, screen cloth assembling is seated on netted pallet 21.Put down screen cloth fixed cross frame 15 on screen cloth lid 22, tighten the cross fixed screw 20 at two ends.
4, tighten lower bolster compression screw 18, ensure that screen cloth group device is stably fixed on netted pallet 21 further.
5, whole screening machine is put into suitable tank or bucket.Water filling in tank or bucket, the water surface with the upper edge of just Mo Guo the superiors screen cloth, and is not as the criterion higher than motor.
6, start speed governing knob 7, start the work of sieving.Situation per sample, regulate motor 6 rotating speed below 40 revs/min, the time is no less than 2min.
7, after screening terminates, screening machine is closed by speed governing knob 7.
8, after vibration stops, unscrewing cross fixed screw 20, carry on screen cloth fixed cross frame 15, take off screen cloth group device.By the sample packing in standard screen 23.
9, with hairbrush and clear water, standard screen 23 is cleaned up.
10,1 ~ 9 process is repeated.
When table 2 the present invention carries out wet screening and the comparative analysis of existing apparatus applicable cases
Claims (10)
1. reciprocating vertical vibration electric screen grader, is characterized in that being made up of bearing device, screen fixing device, drive unit, screen cloth group device, bearing device comprises base (1), support spring (2), support bar (3) and slip pole (4), described support spring (2) is uniformly distributed in the upper surface of base (1), vertical support bar (3) and slip pole (4) are located at the edge of base (1), comparatively support bar (3) is closer to base center for slip pole (4), and slip pole upper end is provided with the trace support ring (5) just connect, screen fixing device comprises netted pallet (21), vertical rod (14) fixed by screen cloth, screen cloth fixed cross frame (15), horizon bar (16), lower bolster (17), lower bolster compression screw (18), lower bolster pull tab (19), screen cloth trace (12) and trace slip ring (13), described netted pallet (21) is located on support spring (2), screen cloth trace (12) is located on netted pallet (21) through trace support ring (5), the top of screen cloth trace (12) is provided with screen cloth trace T-shaped projection (11), trace slip ring (13) is located at middle part and the bottom of screen cloth trace (12) respectively, and be located on slip pole (4), at least two screen clothes are fixed vertical rod (14) and are distributed on the edge of netted pallet (21), screen cloth fixed cross frame (15) and screen cloth are fixed the two ends that vertical rod (14) contacts and are slidably connected, the two ends that vertical rod (14) contacts do not fixed by screen cloth fixed cross frame (15) with screen cloth be horizon bar (16), horizon bar (16) below is connected with lower bolster (17) by lower bolster pull tab (19), the lower bolster compression screw (18) that horizon bar (16) has one group to be evenly distributed, drive unit comprises motor (6), motor rotating disk (8) and drive rod (10), motor (6) is positioned at the top of support bar (3), motor rotating disk (8) is connected with the rotating shaft of motor (6), motor rotating disk (8) is provided with rotating disk T-shaped projection (9) close to the outer surface of circumference, the two ends of drive rod (10) respectively with screen cloth trace T-shaped projection (11) and rotating disk T-shaped projection (9) hinged, screen cloth group device is made up of at least one group of the screen cloth chassis (24) superposed successively from bottom to top, standard screen (23) and screen cloth lid (22), and is positioned at screen cloth and fixes within vertical rod (14), netted pallet (21) and screen cloth fixed cross frame (15) administrative space during the screening of screen cloth group device.
2. reciprocating vertical vibration electric screen grader according to claim 1, it is characterized in that described screen cloth fixed cross frame (15) and screen cloth are fixed the two ends that vertical rod (14) contacts and be provided with Ω shape opening, screen cloth being fixed vertical rod (14) is stuck in mouth, and Ω shape open outer side has cross fixed screw (20).
3. reciprocating vertical vibration electric screen grader according to claim 1, is characterized in that described motor (6) is provided with speed governing knob (7).
4. reciprocating vertical vibration electric screen grader according to claim 1, is characterized in that the adjustable in length of vertical rod (14), support bar (3), screen cloth trace (12), slip pole (4) fixed by described screen cloth.
5. reciprocating vertical vibration electric screen grader according to claim 1, is characterized in that the part that described netted pallet (21) and lower bolster (17) directly contact with screen cloth group device is provided with padded coaming.
6. reciprocating vertical vibration electric screen grader according to claim 1, is characterized in that described netted pallet (21) and standard screen (23) for wet screening after combining, wherein, and the outer layer covers padded coaming of netted pallet (21).
7. reciprocating vertical vibration electric screen grader according to claim 1, is characterized in that the speed adjustable range of described motor is 0 ~ 300 rev/min, and controlling dry screen rotating speed is 20 ~ 300 revs/min, and wet screening rotating speed is for being no more than 40 revs/min.
8. reciprocating vertical vibration electric screen grader according to claim 1, it is characterized in that described netted pallet outer ring is bonding jumper framework, inside is netted or parallel shape; The mesh aperture of its inner mesh portion is 1cm; Or parallel portion spacing is 1cm; Net or the parallel shape structure bar of described netted pallet are formed by the metal wire knitted of outer layer covers padded coaming, or by after metallic plate hollow out, outer layer covers padded coaming; Outer layer covers material selection rubber, latex or silica gel; Wire or metallic plate select irony or steel.
9. according to the using method of the arbitrary described reciprocating vertical vibration electric screen grader of claim 1 ~ 8, it is characterized in that the step of dry screen is: before screening, sample is placed in the standard screen (23) of the superiors, build screen cloth lid (22), standard screen (23) is placed on screen cloth chassis (24), composition screen cloth group device; Cross fixed screw (20) is turned on, unscrews lower bolster compression screw (18), screen cloth fixed cross frame (15) is slid into screen cloth and fix vertical rod (14) top, screen cloth assembling is seated on netted pallet (21); Put down screen cloth fixed cross frame (15) on screen cloth lid (22), tighten the cross fixed screw (20) at two ends; Tighten lower bolster compression screw (18), make screen cloth group device be stably fixed on netted pallet (21); Regulate speed governing knob (7), start the work of sieving; Situation per sample, regulate motor (6) rotating speed at 20 ~ 300 revs/min, the time is 1 ~ 3min; After screening terminates, close compound vertical vibration electric screen grader by speed governing knob (7); Vibration is unscrewed cross fixed screw (20), is carried on screen cloth fixed cross frame (15), take off screen cloth group device after stopping; By the sample packing in standard screen (23) and screen cloth chassis (24); With hairbrush, standard screen (23) and screen cloth chassis (24) are cleaned down.
10. according to the using method of the arbitrary described reciprocating vertical vibration electric screen grader of claim 1 ~ 8, it is characterized in that the step of wet screening is: before screening, sample is placed in the standard screen (23) of the superiors, needs to add standard screen according to screening, composition screen cloth group device; Cross fixed screw (20) is turned on, unscrews lower bolster compression screw (18), screen cloth fixed cross frame (15) is slid into screen cloth and fix vertical rod (14) top, screen cloth assembling is seated on netted pallet (21); Put down screen cloth fixed cross frame (15) on screen cloth lid (22), tighten the cross fixed screw (20) at two ends; Tighten lower bolster compression screw (18), ensure that screen cloth group device is stably fixed on netted pallet (21) further; Whole compound vertical vibration electric screen grader is put into tank or bucket; Water filling in tank or bucket, the water surface with the upper edge of just Mei Guo the superiors screen cloth, and is not as the criterion higher than motor; Regulate speed governing knob (7), start the work of sieving; Situation per sample, regulate motor (6) rotating speed below 40 revs/min, the time is no less than 2min; After screening terminates, close compound vertical vibration electric screen grader by speed governing knob (7); Vibration is unscrewed cross fixed screw (20), is carried on screen cloth fixed cross frame (15), take off screen cloth group device after stopping; By the sample packing in standard screen (23); With hairbrush and clear water, standard screen (23) is cleaned up.
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| CN105107707A (en) * | 2015-09-15 | 2015-12-02 | 三峡大学 | Soil wet screening device and method |
| CN109092465A (en) * | 2018-07-12 | 2018-12-28 | 莱阳六和饲料有限公司 | A kind of feed processing feeding port sieve salt device |
| CN109855400A (en) * | 2019-03-20 | 2019-06-07 | 深圳市信宇人科技股份有限公司 | Warehouse style flexibility rapid draing mould group and drying system |
| CN111790606A (en) * | 2020-06-01 | 2020-10-20 | 中国恩菲工程技术有限公司 | Wet-type screening device for fine-grained materials |
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| CN204656933U (en) * | 2015-05-12 | 2015-09-23 | 中国科学院南京土壤研究所 | Reciprocating vertical vibration electric screen grader |
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| EP0482683A1 (en) * | 1990-10-23 | 1992-04-29 | METALLGESELLSCHAFT Aktiengesellschaft | Method and apparatus for separating a flow of bulk material into fractions of different grain size |
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| CN105107707A (en) * | 2015-09-15 | 2015-12-02 | 三峡大学 | Soil wet screening device and method |
| CN109092465A (en) * | 2018-07-12 | 2018-12-28 | 莱阳六和饲料有限公司 | A kind of feed processing feeding port sieve salt device |
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| CN111790606A (en) * | 2020-06-01 | 2020-10-20 | 中国恩菲工程技术有限公司 | Wet-type screening device for fine-grained materials |
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|---|---|
| CN104826793B (en) | 2016-08-03 |
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