CN101966517A - Variable motion trail screening method and vibrating mesh screen - Google Patents
Variable motion trail screening method and vibrating mesh screen Download PDFInfo
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- CN101966517A CN101966517A CN2009102173254A CN200910217325A CN101966517A CN 101966517 A CN101966517 A CN 101966517A CN 2009102173254 A CN2009102173254 A CN 2009102173254A CN 200910217325 A CN200910217325 A CN 200910217325A CN 101966517 A CN101966517 A CN 101966517A
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Abstract
The invention discloses a variable motion trail screening method and a vibrating mesh screen, and belongs to the field of vibrating and screening machinery. The method is used for improving the screening efficiency of difficulty screened materials and the treatment capability. A screen vibrating device mainly consists of a vibration exciter and a vibrating arm, wherein the vibration exciter is arranged on the lateral surface of a screen box; the vibrating arm is positioned below a screen; and a plurality of groups of screen vibrating devices are arranged in turn along the longitudinal direction of the screen box. From the feeding end to the discharge end of the screen box, the vibration amplitudes of the vibration exciters of the plurality of groups of screen vibrating devices are gradually decreased from high to low, gradually increased from low to high, equal or unequal, and the vibration frequencies of the vibration exciters of the plurality of groups of screen vibrating devices are gradually decreased from high to low, gradually increased from low to high, the same or different. Materials on the screen surface pass through the screen surface according to the relative change of the vibration amplitude and the vibration frequency and the motion trails of different vibration strengths. The change rules of the vibration amplitude and the frequency of the vibration exciters of the vibrating mesh screen can be determined according to different materials so that the difficulty screened materials are effectively screened and the treatment capability of the vibrating mesh screen is improved. The method is applied to various vibrating mesh screens for grading the difficulty screened materials.
Description
Technical field
The invention belongs to the vibration screening machinery field, the amplitude that mainly relates to the vibration sieve screen cloth is relative variation with vibration frequency, can effectively improve the change movement locus method for sieving and the vibration sieve of vibratory sieve disposal ability and screening efficiency.
Background technology
Vibration sieve normally adopts the high-frequency electromagnetic vibrator, drives the screen cloth dither by parts such as vibrating arm, rubber torsion spring, shaker arm and rubber caps, reaches the purpose of screening material.Because the amplitude of each group electromagnetic vibrator is identical with operating frequency, so the amplitude of whole group screen cloth also is identical with vibration frequency substantially.Has the ginseng little and power consumption advantage such as low of weight of shaking.But for some difficult screened materials, the perhaps screening of the thicker material of the bed of material on the compass screen surface, because the relative motion between the material particles is less, Zuo Yong chance is few each other, tends to occur solid accumulation or the not smooth problem of material walking, influences the screening of material.
Summary of the invention
The purpose of this invention is to provide a kind of change movement locus method for sieving and vibration sieve, the change movement locus that the relative variation of this vibration sieve by screen cloth amplitude and vibration frequency produces is realized the screening to material, can improve the disposal ability and the screening efficiency of vibration sieve effectively.
The present invention is achieved by the following measures, and becoming the movement locus method for sieving is that many group screen cloth vibrating devices are installed on the screen box of vibratory sieve, and each organizes screen cloth vibrating device vertically being arranged in order at screen box.From the feeding end of screen box to discharge end, each is organized the amplitude of screen cloth vibrating device vibrator and descendingly successively decreases, ascendingly increases progressively, equates or unequal, each organize the vibration frequency of screen cloth vibrating device vibrator successively decrease from high to low, increase progressively from low to high, identical or inequality.Each organizes the variation of arranging in pairs or groups regularly of the amplitude of screen cloth vibrating device and vibration frequency, material forms the movement locus of amplitude and vibration frequency increasing or decreasing rule on compass screen surface, perhaps form amplitude and vibration frequency is unequal, material becomes the movement locus of turbulent flow or fluidized state, makes the material on the compass screen surface pass through compass screen surface with the relative variation of amplitude and vibration frequency and the movement locus of oscillation intensity variation.
A kind of vibration sieve of realizing becoming the movement locus method for sieving, mainly by screen box, screen cloth, frame with organize screen cloth vibrating device etc. more and form, screen box is installed on the frame by vibration absorber.It is characterized in that: the screen cloth vibrating device mainly is made up of vibrator and shaker arm, and vibrator is arranged on the side of screen box, shaker arm be positioned at screen cloth below, organize screen cloth vibrating device vertically being arranged in order along screen box more.From the feeding end of screen box to discharge end, each is organized the amplitude of screen cloth vibrating device vibrator and descendingly successively decreases, ascendingly increases progressively, equates or unequal, each organize the vibration frequency of screen cloth vibrating device vibrator successively decrease from high to low, increase progressively from low to high, identical or inequality.
Except each amplitude of organizing screen cloth vibrating device vibrator equates, outside the identical prior art of vibration frequency, by screen cloth vibrating device vibrator amplitude and vibration frequency change,, can be combined into installation arrangement mode with the lower screen cloth vibrating device according to the needs of sieving technology:
A, from the feeding end of screen box to discharge end, each organizes descending the successively decreasing of amplitude of screen cloth vibrating device vibrator, vibration frequency is successively decreased from high to low or is increased progressively from low to high;
B, from the feeding end of screen box to discharge end, each organizes descending the successively decreasing of amplitude of screen cloth vibrating device vibrator, vibration frequency is identical or inequality;
C, from the feeding end of screen box to discharge end, each organizes ascending the increasing progressively of amplitude of screen cloth vibrating device vibrator, vibration frequency is successively decreased from high to low or is increased progressively from low to high;
D, from the feeding end of screen box to discharge end, each organizes ascending the increasing progressively of amplitude of screen cloth vibrating device vibrator, vibration frequency is identical or inequality;
E, from the feeding end of screen box to discharge end, it is unequal that each organizes the amplitude of screen cloth vibrating device vibrator, vibration frequency is successively decreased from high to low or is increased progressively from low to high;
F, from the feeding end of screen box to discharge end, it is unequal that each organizes the amplitude of screen cloth vibrating device vibrator, vibration frequency is identical or inequality;
G, from the feeding end of screen box to discharge end, each amplitude of organizing screen cloth vibrating device vibrator equates that vibration frequency is successively decreased from high to low or increased progressively from low to high;
Perhaps h, from the feeding end of screen box to discharge end, each amplitude of organizing screen cloth vibrating device vibrator equates that vibration frequency is inequality.
Different according to the composition of material and ratio, organize that the screen cloth vibrating device arranges longitudinally along screen box can be equidistant or not equidistant more.According to the needs of screen area, the quantity of screen cloth vibrating device can be 2-9 group, is made up of two vibrators for every group, is installed in the both sides of screen box, also can be made up of a vibrator, is installed in a side of screen box.
The vibrator of screen cloth vibrating device is realized by electromagnetic vibrator, eccentric mass vibrator or vibrating motor.The eccentric mass vibrator is eccentric shaft or eccentric block formula vibrator, and is provided with additional eccentric block formula eccentric mass adjusting device.
During vibration sieve work, because the amplitude of each group screen cloth vibrating device and vibration frequency can reasonably combined regularly variations, material can form the movement locus of amplitude and vibration frequency increasing or decreasing rule on compass screen surface, also amplitude can be formed and vibration frequency is unequal, material becomes the movement locus of turbulent flow or fluidized state, makes the material on the compass screen surface pass through compass screen surface with the relative variation of amplitude and vibration frequency and the movement locus of oscillation intensity variation.
The invention has the beneficial effects as follows, oscillation amplitude change is not only arranged, and vibration frequency change is arranged because the vibration mode of vibration sieve screen cloth is to design according to the needs that sieve material.So the adaptability of screen(ing) machine is more intense, can be combined into the vibration sieve of the change movement locus of multiple screen movement form, adopt the method that becomes movement locus to sieve to material.Material no longer is clocklike to move on compass screen surface, but under the effect of the dual variation of amplitude and vibration frequency, repeatedly produces collision and seethes, and makes the effectively saturating sieve of difficult screened material improve the disposal ability and the screening efficiency of vibration sieve.Can be applicable to the various vibration sieves that difficult screened material carried out classification.
Description of drawings
Accompanying drawing is a structural representation of the present invention, and 1 is that screen box, 2 is that screen cloth, 3 is that screen cloth vibrating device, 4 is frame and vibration absorber among the figure, and A is that screen box feeding end, B are the screen box discharge end.
The specific embodiment
Below in conjunction with the description of drawings embodiments of the invention, becoming the movement locus vibration sieve is the capital equipment of realizing becoming the movement locus sieve method.Mainly be made up of screen box 1, screen cloth 2, frame 4 and four groups of screen cloth vibrating devices 3 etc., screen box 1 is installed on the frame by vibration absorber.Screen cloth vibrating device 3 mainly is made up of vibrator and shaker arm, and vibrator is two electromagnetic vibrators, is arranged on the side of screen box 1, shaker arm be positioned at screen cloth 2 below, organize the vertical equidistant arrangement of screen cloth vibrating device 3 along screen box 1 more.From the feeding end A of screen box to discharge end B, each is organized the amplitude of screen cloth vibrating device 3 vibrators and descendingly successively decreases, ascendingly increases progressively, equates or unequal, each organize the vibration frequency of screen cloth vibrating device 3 vibrators successively decrease from high to low, increase progressively from low to high, identical or inequality.
According to screen cloth vibrating device 3 vibrator amplitudes and vibration frequency change rule, below respectively to organize embodiment be screen cloth vibrating device 3 from the feeding end A of screen box 1 to discharge end B installation arrangement mode:
1, vibration sieve has four groups of screen cloth vibrating devices, and when each amplitude of organizing the screen cloth vibrating device successively decreased from 12mm to 8mm, vibration frequency was successively decreased from 50Hz to 40Hz;
2, vibration sieve has four groups of screen cloth vibrating devices, and when each amplitude of organizing the screen cloth vibrating device successively decreased from 12mm to 8mm, vibration frequency was that 40Hz 45Hz 38Hz and 50Hz are inequality;
3, vibration sieve has four groups of screen cloth vibrating devices, and when each amplitude of organizing the screen cloth vibrating device increased progressively from 8mm to 12mm, vibration frequency was successively decreased from 50Hz to 40Hz;
4, vibration sieve has four groups of screen cloth vibrating devices, and when each amplitude of organizing the screen cloth vibrating device increased progressively from 8mm to 12mm, vibration frequency was 40Hz;
5, vibration sieve has four groups of screen cloth vibrating devices, and each amplitude of organizing the screen cloth vibrating device is that 12mm, 9mm, 11mm and 10mm are unequal, and vibration frequency is successively decreased from 50Hz to 40Hz;
6, vibration sieve has four groups of screen cloth vibrating devices, and each amplitude of organizing the screen cloth vibrating device is that 12mm, 9mm, 11mm and 10mm are unequal, and vibration frequency is that 40Hz 45Hz 38Hz and 50Hz are inequality;
7, vibration sieve has four groups of screen cloth vibrating devices, and each amplitude of organizing the screen cloth vibrating device is 10mm, and vibration frequency increases progressively from 40Hz to 50Hz;
8, vibration sieve has four groups of screen cloth vibrating devices, and each amplitude of organizing the screen cloth vibrating device is 10mm, and vibration frequency is that 40Hz, 45Hz, 38Hz and 50Hz are inequality.
Claims (5)
1. one kind becomes the movement locus method for sieving, it is characterized in that: many group screen cloth vibrating devices are installed on the screen box of vibratory sieve, and each organizes screen cloth vibrating device vertically being arranged in order at screen box; From the feeding end of screen box (1) to discharge end, each is organized the amplitude of screen cloth vibrating device (3) vibrator and descendingly successively decreases, ascendingly increases progressively, equates or unequal, each organize the vibration frequency of screen cloth vibrating device (3) vibrator successively decrease from high to low, increase progressively from low to high, identical or inequality; Each organizes the variation of arranging in pairs or groups regularly of the amplitude of screen cloth vibrating device (3) and vibration frequency, material is gone up the movement locus that forms amplitude and vibration frequency increasing or decreasing rule at compass screen surface (2), perhaps form amplitude or vibration frequency is unequal, material becomes the movement locus of turbulent flow or fluidized state, makes the material on the compass screen surface (2) pass through compass screen surface with the relative variation of amplitude and vibration frequency and the movement locus of oscillation intensity variation.
2. vibration sieve of realizing the described change movement locus of claim 1 method for sieving, mainly by screen box, screen cloth, frame with organize the screen cloth vibrating device more and form, screen box is installed on the frame by vibration absorber, it is characterized in that: screen cloth vibrating device (3) mainly is made up of vibrator and shaker arm, vibrator is arranged on the side of screen box (1), shaker arm be positioned at screen cloth (2) below; Many group screen cloth vibrating devices (3) vertically being arranged in order along screen box;
According to the amplitude and the vibration frequency change of screen cloth vibrating device (3) vibrator, to discharge end B, the arrangement mounting means of screen cloth vibrating device is from the feeding end A of screen box:
A, from the feeding end of screen box to discharge end, each organizes descending the successively decreasing of amplitude of screen cloth vibrating device vibrator, vibration frequency is successively decreased from high to low or is increased progressively from low to high;
B, from the feeding end of screen box to discharge end, each organizes descending the successively decreasing of amplitude of screen cloth vibrating device vibrator, vibration frequency is identical or inequality;
C, from the feeding end of screen box to discharge end, each organizes ascending the increasing progressively of amplitude of screen cloth vibrating device vibrator, vibration frequency is successively decreased from high to low or is increased progressively from low to high;
D, from the feeding end of screen box to discharge end, each organizes ascending the increasing progressively of amplitude of screen cloth vibrating device vibrator, vibration frequency is identical or inequality;
E, from the feeding end of screen box to discharge end, it is unequal that each organizes the amplitude of screen cloth vibrating device vibrator, vibration frequency is successively decreased from high to low or is increased progressively from low to high;
F, from the feeding end of screen box to discharge end, it is unequal that each organizes the amplitude of screen cloth vibrating device vibrator, vibration frequency is identical or inequality;
G, from the feeding end of screen box to discharge end, each amplitude of organizing screen cloth vibrating device vibrator equates that vibration frequency is successively decreased from high to low or increased progressively from low to high;
Perhaps h, from the feeding end of screen box to discharge end, each amplitude of organizing screen cloth vibrating device vibrator equates that vibration frequency is inequality.
3. change movement locus vibration sieve according to claim 2 is characterized in that: it is equidistant or not equidistant organizing that screen cloth vibrating device (3) arranges longitudinally along screen box (1) more; The quantity of screen cloth vibrating device (3) is 2-9 group, is made up of two vibrators for every group, is installed in the both sides of screen box, also can be made up of a vibrator, is installed in a side of screen box.
4. change movement locus vibration sieve according to claim 2 is characterized in that: the vibrator of screen cloth vibrating device (3) is realized by electromagnetic vibrator, eccentric mass vibrator or vibrating motor.
5. change movement locus vibration sieve according to claim 4 is characterized in that: the eccentric mass vibrator is eccentric shaft or eccentric block formula vibrator, and is provided with additional eccentric block formula eccentric mass adjusting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102173254A CN101966517A (en) | 2009-12-30 | 2009-12-30 | Variable motion trail screening method and vibrating mesh screen |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102173254A CN101966517A (en) | 2009-12-30 | 2009-12-30 | Variable motion trail screening method and vibrating mesh screen |
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| CN101966517A true CN101966517A (en) | 2011-02-09 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102632192A (en) * | 2011-03-23 | 2012-08-15 | 如皋市大生线路器材有限公司 | Investment casting shell breaking and classified-screening method |
| CN109731780A (en) * | 2019-01-18 | 2019-05-10 | 福建南方路面机械有限公司 | A kind of Multi-frequency vibration sieve subset |
| CN113333275A (en) * | 2021-06-02 | 2021-09-03 | 新乡市胜宇机电有限公司 | Material screening system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1962088A (en) * | 2005-11-12 | 2007-05-16 | 鞍山市重型矿山机器厂 | Multi-unit combined vibration screen |
| CN101310872A (en) * | 2007-05-22 | 2008-11-26 | 杨永柱 | Triaxiale self-synchronizing elliptical vibrating screen |
-
2009
- 2009-12-30 CN CN2009102173254A patent/CN101966517A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1962088A (en) * | 2005-11-12 | 2007-05-16 | 鞍山市重型矿山机器厂 | Multi-unit combined vibration screen |
| CN101310872A (en) * | 2007-05-22 | 2008-11-26 | 杨永柱 | Triaxiale self-synchronizing elliptical vibrating screen |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102632192A (en) * | 2011-03-23 | 2012-08-15 | 如皋市大生线路器材有限公司 | Investment casting shell breaking and classified-screening method |
| CN109731780A (en) * | 2019-01-18 | 2019-05-10 | 福建南方路面机械有限公司 | A kind of Multi-frequency vibration sieve subset |
| CN109731780B (en) * | 2019-01-18 | 2024-03-19 | 福建南方路面机械股份有限公司 | Multifrequency vibration screening equipment |
| CN113333275A (en) * | 2021-06-02 | 2021-09-03 | 新乡市胜宇机电有限公司 | Material screening system |
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Application publication date: 20110209 |