CN104785437A - Bar type vibration screen - Google Patents
Bar type vibration screen Download PDFInfo
- Publication number
- CN104785437A CN104785437A CN201510156598.8A CN201510156598A CN104785437A CN 104785437 A CN104785437 A CN 104785437A CN 201510156598 A CN201510156598 A CN 201510156598A CN 104785437 A CN104785437 A CN 104785437A
- Authority
- CN
- China
- Prior art keywords
- sieve
- bar
- rod
- screen
- parallel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
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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
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- 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
Abstract
The invention provides a bar type vibration screen. The bar type vibration screen comprises a base, a rack, a spring, a screen body, a vibration exciter and bar screen bodies, wherein the bar screen bodies are installed in the screen body, and the at least two bar screen bodies are arranged in the flowing direction of materials in the shape of stairs; each bar screen body comprises a beam, an upper-layer screen piece and a lower-layer screen piece. Each upper-layer screen piece is composed of a short bar and a long bar, one end of the short bar and one end of the long bar are fixed to the corresponding beam through elastic materials, and the other end of the short bar and the other end of the long bar are cantilevers. The short bars and the long bars are arranged in a spaced mode; the long bars are arranged in parallel, and the short bars turn up relative to the plane formed by the parallel long bars. Each lower-layer screen piece is composed of a lower-layer bar with one end fixed to the corresponding beam through an elastic material, and the other end of the lower-layer bar is a cantilever. The lower-layer bars are arranged in parallel, and the bar cantilever ends of the bar screen bodies are inclined downwards. The vibration screen is high in screening efficiency and screening precision, and the screen cannot be blocked easily.
Description
Technical field
The present invention relates to a kind of screening plant being applied to field of metallurgy, be specifically related to the Bar strip type vibratory sieve that a kind of screening precision is high.
Background technology
Bar strip type vibratory sieve is a kind of conventional material screening instrument, and rod sieve has screening efficiency advantage that is very high, not easily plug-hole, but has the more material being greater than gradational boundary through under sieve falls into sieve, and its precision is very poor.
Summary of the invention
The present invention is directed to the problems of the prior art, the Bar strip type vibratory sieve that a kind of screening precision is high, efficiency is high is provided.
The present invention is achieved by the following technical solutions:
A kind of Bar strip type vibratory sieve, include base, frame, spring, sieve nest, vibrator and rod sieve, described frame is fixedly mounted on described base, described spring fitting is in described frame, described sieve nest is supported on described spring, and described vibrator is arranged on described sieve nest, and it is inner that described rod sieve is arranged on described sieve nest, it is characterized in that: described rod sieve has two at least, flow to stepped setting by material; Described bar screen attached bag draws together crossbeam, upper strata sieve and lower floor's sieve; Described upper strata sieve is fixed on stub bar on crossbeam by one end by elastomeric material and long rod forms; The other end cantilever of described stub bar and described long rod, described stub bar and described long rod are alternately; Described long rod is arranged in parallel, and the plane that described stub bar is formed relative to described long rod arranged in parallel is upturned; Lower floor's rod that described lower floor sieve is fixed on described crossbeam by elastomeric material by one end forms, and described lower floor rod other end cantilever, described lower floor rod is arranged in parallel, and the rod cantilever end of described rod sieve is downward-sloping.
More specifically, described stub bar tilts angle relative to the plane that described long rod arranged in parallel is formed is 1-3 °.
More specifically, described vibrator has two, does rightabout rotation.
More specifically, described stub bar is identical with described long rod diameter; Described lower floor rod diameter is different, and length is also different.
During Bar strip type vibratory sieve work of the present invention, two motors drives two groups of vibrators to do rightabout rotation, the exciting force produced offsets on two groups of exciter system lines of centres, and superposes formation resonance in the perpendicular direction with joint efforts, by the barycenter of sieve nest.The exciting force produced is delivered on sieve nest, thus makes whole vibratory sieve produce Biaxial linear vibration.
Rod produces harmonic motion under the effect of vibrator, and actual vibration direction is not vertical with rod, because amount of deflection swings, is have certain angle with rod.When shaker vibration intensity is certain, the stub bar of tilting ensure that sling movement made by the superiors' material, that is: give large granular materials one " springboard ".Sieve is flexible, has secondary vibration characteristic, and sieve is that this characteristic is very beneficial for the layering of sieve material by stepped distribution from level to level.The material group be made up of the particle that granularity is different is when sieve makes sling movement, large granular materials is owing to having larger throwing intensity with sieve is close, more farther than the distance of granule throwing, from upper strata sieve throwing to lower floor's sieve, form granule rear, bulky grain is front.Easily upspring by the rod tilted in the process fallen compared with the material of coarsegrain, the material of smaller particle size easily fall into material bed below, accelerate material layering in screening process.Move forward like this, granule below will move in the gap below bulky grain above, thus forms granule in point layer status of bottom bulky grain on upper strata, and granule contacts with sieve, thus thoroughly sieves.
Beneficial effect:
1, easily upspring by the stub bar tilted in the process fallen compared with the material of coarsegrain, the material of smaller particle size easily falls into below the bed of material, accelerates material layering in screening process, improves screening efficiency and screening precision.
2, the cantilever end of rod produces secondary vibration under sieve nest vibration with material impact, and upwards to vibrate, produces blocking-proof result thus and to the strong loose effect of material.
Accompanying drawing explanation
fig. 1:a kind of Bar strip type Structure of Vibrating Screen schematic diagram of the present invention;
fig. 2: the rod sieve top view in structure of the present invention;
fig. 3:rod sieve side view in structure of the present invention;
fig. 4:large granular materials and the small particles material motion conditions schematic diagram in sieve.
Detailed description of the invention
The present invention is set forth further below by detailed description of the invention.
As shown in Figure 1, for sieving the vibratory sieve of high basicity sinter, include base 1, frame 2, spring 3, sieve nest 4, vibrator 5 and sieve 6, frame 2 is fixedly mounted on base 1, spring 3 is arranged on support 2, sieve nest 4 is supported on spring 3, and vibrator 5 is arranged on sieve nest 4, and it is inner that described sieve 6 is arranged on described sieve nest 4; Sieve 6 has 9, flowing to stepped and being inclined relative to horizontal setting by material.Employ three kinds of different sieves 6 in the present embodiment, its concrete structure and screening result as follows:
1, upper strata rod sieve, lower floor's comb sieve.
Upper strata rod sieve rod be arranged in parallel, gap 12mm; Lower floor's comb, gap 6mm, through the charging powder about 3.21% of statistics sintering deposit granular size at 0-6 ㎜.
2, dual-layer Parallel rod vibratory sieve.
Upper strata sieve is fixed on stub bar arranged in parallel on crossbeam by one end by elastomeric material and long rod forms alternately, gap 6mm, the long 308mm of long rod, the long 285mm of stub bar, and both are 8mm by diameter; Lower floor's sieve is made up of rod different in size arranged in parallel, and its diameter is 4mm, rod gap 4mm.
Sampling is tracked into stove granular size accounting situation, in table 1.
Table 1 dual-layer Parallel rod bolting fed to boiler particle accounting situation
Obtain conclusion by table 1: screening result is unstable, fluctuation is comparatively large, and to be 0-6 ㎜ charging powder content be granular size, maximum: 9.51%, minimum: 2.06%, average: 3.76%.
3, the double-deck rod vibratory sieve of stub tilting.
The bar screen this time used obtains for dual-layer Parallel rod vibratory sieve recited above being carried out transformation, as shown in Figure 2, namely upper strata sieve is fixed on stub bar 7 arranged in parallel on crossbeam 9 by one end by elastomeric material and long rod 8 forms alternately, gap 6mm, the long 308mm of long rod 8, the long 285mm of stub bar 7, both are 8mm by diameter; Lower floor's sieve is made up of rod different in size arranged in parallel, and its diameter is 4mm, rod gap 4mm.
Concrete remodeling method is tilted by the stub bar 7 in the sieve of upper strata, and shown in Fig. 3, the angle that the plane that stub bar 7 is formed relative to long rod 8 tilts is b, and in the present embodiment, angle b is 2 °.As described in Figure 4, during screening operation, bulky grain 10 material is owing to having larger throwing intensity with sieve is close, more farther than the distance of granule 11 throwing, through the screening of multilayer sieve, granule 11 can be formed in point layer status of bottom bulky grain 10 on upper strata, improve screening efficiency and precision.
Sampling is tracked into stove granular size accounting situation, in table 2.
The double-deck rod bolting fed to boiler particle accounting situation that table 2 stub tilts
Reached a conclusion by table 2: screening result is more stable, to be 0-6 ㎜ charging powder accounting situation be granular size, maximum: 2.76%, minimum: 2.20%, average: 2.45%.
4, economic benefit calculation
The intensity improving furnace charge according to " BF Technology in Bao Steel handbook " 1.1.1.4 illustrates with optimizing in granularmetric composition: domestic statistics show: the powder entering furnace size < 6 ㎜ reduces by 1%, the capacity factor of a blast furnace improves 0.4%-1.0%, and coke ratio reduces by 0.5%.So, from the charging powder 3.2% of original sintering deposit granular size at 0-6 ㎜, be reduced to 2.5%, reduce 0.7%.Measuring and calculating: the capacity factor of a blast furnace is by raising 0.5%-0.7%, and coke ratio will reduce: 0.25%.At present, 1#, 2# capacity factor of a blast furnace of Hong Xing Steel stock Co., Ltd of Jiu Gang group is 2.2, and so usage factor is by raising about 2.4, and day is increased production: 560 tons of pig iron, and annual volume increase is at about 200,000 tons.Coke ratio reduces by 1.025 kgs/tonne of iron, current 1#, 2# blast furnace daily output pig iron 6500 tons, and day reduces by 6.66 tons, coke, and Jiao falls in the whole year: 2398.5 tons, according to the calculating of 1000 yuan, coke per ton, and annual reduction pig iron cost: about 2398500 yuan.
Claims (4)
1. a Bar strip type vibratory sieve, include base (1), frame (2), spring (3), sieve nest (4), vibrator (5) and rod sieve (6), described frame (2) is fixedly mounted on described base (1), described spring (3) is arranged in described frame (2), described sieve nest (4) is supported on described spring (3), described vibrator (5) is arranged on described sieve nest (4), it is inner that described rod sieve (6) is arranged on described sieve nest (4), it is characterized in that: described rod sieve (6) has two at least, stepped setting is flowed to by material, described rod sieve (6) comprises crossbeam (9), upper strata sieve and lower floor's sieve, described upper strata sieve is fixed on stub bar (7) on crossbeam (9) by one end by elastomeric material and long rod (8) forms, the other end cantilever of described stub bar (7) and described long rod (8), described stub bar (7) and described long rod (8) are alternately, described long rod (8) is arranged in parallel, and the plane that described stub bar (8) is formed relative to described long rod (8) arranged in parallel is upturned, lower floor's rod that described lower floor sieve is fixed on described crossbeam (9) by elastomeric material by one end forms, described lower floor rod other end cantilever, and described lower floor rod is arranged in parallel, and the rod cantilever end of described rod sieve (6) is downward-sloping.
2. a kind of Bar strip type vibratory sieve as claimed in claim 1, is characterized in that: it is 1-3 ° that described stub bar (7) tilts angle relative to the plane that described long rod (8) arranged in parallel is formed.
3. a kind of Bar strip type vibratory sieve as claimed in claim 1 or 2, is characterized in that: described vibrator (5) has two, does rightabout rotation.
4. a kind of Bar strip type vibratory sieve as described in claim 1-3 any one, is characterized in that: described stub bar (7) is identical with described long rod (8) diameter; Described lower floor rod diameter is different, and length is also different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510156598.8A CN104785437A (en) | 2015-04-03 | 2015-04-03 | Bar type vibration screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510156598.8A CN104785437A (en) | 2015-04-03 | 2015-04-03 | Bar type vibration screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104785437A true CN104785437A (en) | 2015-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510156598.8A Pending CN104785437A (en) | 2015-04-03 | 2015-04-03 | Bar type vibration screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104785437A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107442401A (en) * | 2017-09-01 | 2017-12-08 | 济南大学 | A kind of double mass anti-resonance vibrating sifter |
| CN110464037A (en) * | 2018-07-25 | 2019-11-19 | 秦皇岛烟草机械有限责任公司 | A kind of loose group's of the solution device of pipe tobacco |
| CN111992488A (en) * | 2020-09-17 | 2020-11-27 | 济南中燃科技发展有限公司 | Composite vibrating screen screening device and vibrating screen |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2292617Y (en) * | 1996-06-18 | 1998-09-30 | 北京科技大学 | Segregation distributor for oscillating riddle |
| CN2332499Y (en) * | 1998-05-25 | 1999-08-11 | 孙功民 | Multilayer cantilever screen mesh |
| CN2520218Y (en) * | 2002-02-06 | 2002-11-13 | 孙功民 | Compound double-layer cantilever screen mesh |
| CN2780360Y (en) * | 2005-04-19 | 2006-05-17 | 孙功民 | Cantilever screen |
| CN201482725U (en) * | 2009-08-31 | 2010-05-26 | 宝山钢铁股份有限公司 | Multi-angle combined sieve mesh |
| CN201644383U (en) * | 2010-04-13 | 2010-11-24 | 河南省金特振动机械有限公司 | Wide-side large-scale vibrating screen |
| CN203955511U (en) * | 2014-05-16 | 2014-11-26 | 武汉摩林翰机电设备有限公司 | A kind of high-precision vibrating screen |
| CN204974409U (en) * | 2015-04-03 | 2016-01-20 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Rod formula shale shaker |
-
2015
- 2015-04-03 CN CN201510156598.8A patent/CN104785437A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2292617Y (en) * | 1996-06-18 | 1998-09-30 | 北京科技大学 | Segregation distributor for oscillating riddle |
| CN2332499Y (en) * | 1998-05-25 | 1999-08-11 | 孙功民 | Multilayer cantilever screen mesh |
| CN2520218Y (en) * | 2002-02-06 | 2002-11-13 | 孙功民 | Compound double-layer cantilever screen mesh |
| CN2780360Y (en) * | 2005-04-19 | 2006-05-17 | 孙功民 | Cantilever screen |
| CN201482725U (en) * | 2009-08-31 | 2010-05-26 | 宝山钢铁股份有限公司 | Multi-angle combined sieve mesh |
| CN201644383U (en) * | 2010-04-13 | 2010-11-24 | 河南省金特振动机械有限公司 | Wide-side large-scale vibrating screen |
| CN203955511U (en) * | 2014-05-16 | 2014-11-26 | 武汉摩林翰机电设备有限公司 | A kind of high-precision vibrating screen |
| CN204974409U (en) * | 2015-04-03 | 2016-01-20 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Rod formula shale shaker |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107442401A (en) * | 2017-09-01 | 2017-12-08 | 济南大学 | A kind of double mass anti-resonance vibrating sifter |
| CN107442401B (en) * | 2017-09-01 | 2023-05-26 | 济南大学 | Double-mass anti-resonance vibrating screen |
| CN110464037A (en) * | 2018-07-25 | 2019-11-19 | 秦皇岛烟草机械有限责任公司 | A kind of loose group's of the solution device of pipe tobacco |
| CN111992488A (en) * | 2020-09-17 | 2020-11-27 | 济南中燃科技发展有限公司 | Composite vibrating screen screening device and vibrating screen |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150722 |