EP1897627A2 - Crible, en particulier un crible à résonance spécifique pour des mélanges difficilement séparables, comme les mélanges de sable et d'huile lourde - Google Patents

Crible, en particulier un crible à résonance spécifique pour des mélanges difficilement séparables, comme les mélanges de sable et d'huile lourde Download PDF

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Publication number
EP1897627A2
EP1897627A2 EP07016980A EP07016980A EP1897627A2 EP 1897627 A2 EP1897627 A2 EP 1897627A2 EP 07016980 A EP07016980 A EP 07016980A EP 07016980 A EP07016980 A EP 07016980A EP 1897627 A2 EP1897627 A2 EP 1897627A2
Authority
EP
European Patent Office
Prior art keywords
screening machine
machine according
energy storage
frame
base
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.)
Granted
Application number
EP07016980A
Other languages
German (de)
English (en)
Other versions
EP1897627B1 (fr
EP1897627A3 (fr
Inventor
Ralph Naberg
Udo Artur Zöllner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Paul GmbH and Co KG
Pohl GmbH and Co KG
Original Assignee
Paul GmbH and Co KG
Pohl GmbH and Co KG
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Paul GmbH and Co KG, Pohl GmbH and Co KG filed Critical Paul GmbH and Co KG
Publication of EP1897627A2 publication Critical patent/EP1897627A2/fr
Publication of EP1897627A3 publication Critical patent/EP1897627A3/fr
Application granted granted Critical
Publication of EP1897627B1 publication Critical patent/EP1897627B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens

Definitions

  • the invention relates to a screening machine, in particular specific resonance screening machine for difficult to separate mixtures, such as heavy oil-sand mixtures.
  • screening machines whose sieve acceleration reaches a maximum of 6.35 g.
  • screening machines usually have a screen box as an oscillating mass, which is mounted on damping springs swinging against the floor. The screen vibration is achieved by flanged on the screen box unbalance motors.
  • a high, also referred to as Siebkennziffer K V screening acceleration is particularly necessary for the fine squeezing, are pressed in the low-mass particles that are thrown upwards due to the Siebschwingung, upon relapse in the direction of their counter-sieve through the separating openings.
  • the maximum sieving index which is known to be reached, is a maximum of 6.35 g, which is too low for the mentioned heavy oil-sand mixtures.
  • the sieve acceleration or sieving index of a screening machine should be designed so that the average sieve rotation angle range is approximately 360 ° or integer multiples thereof. This is necessary so that the falling Goodteilchen hits the screen bottom at the moment when it has reached its maximum counter-speed upwards.
  • the maximum relative impact velocity between particles and sieve plate is a high degree of separation of very fine solid particles, for example, from very high viscosity media.
  • the invention leaves the hitherto practiced direct acceleration of the screen box by its oscillating storage relative to the floor and the directly mounted on it unbalance motors. Furthermore, energy storage springs are used for energy transmission between the vibration partners, which no longer have the mechanical limitations of Antschpuffem, guide elements and link arms between the vibration partners, as for example in the DE 11 87 897 A or DE 68 11 940 U the case is. This was the reason that screening machines according to the prior art to a K V - were limited value of about 5 g to 6 g.
  • the approach according to the invention provides for the combination of two oscillating masses, namely the actual oscillating mass in the form of the sieve box and a counterbalancing mass in the form of the base bearing frame which oscillates via damping springs in relation to the erection floor is stored.
  • the basic idea behind this design is to accelerate the base frame as an excitation mass to approx. 3 g and, in conjunction with the energy storage spring assemblies, increase the acceleration of the sieve box due to its directional vibration in the absolute range of 10 g. This acceleration breaks down into a K V value of about 9.5 g due to the inclination of the angle of oscillation on the sieve bottom.
  • energy storage springs while double helical spring assemblies are used, which can work very energy efficient because low-damping and with greatly increased forces. This effect can be dramatically enhanced by a bias of the coil springs.
  • Fig. 1 the sieve plate of a screening machine is indicated by dash-dotted lines, the one symbolized by the solid line sinusoidal oscillation performs.
  • the maximum speed of the sieve bottom in the vertical direction is at the zero crossing of the Siebschwingung.
  • Siebtechnisch makes sense only the upward zero crossing.
  • Dashed line in Fig. 1 is the parabola of particles x for increasing sieve codes with the values 3.2 g; 6.35 g and 9.5 g applied.
  • the throw depends on the actual machine acceleration K as well as the throw angle ⁇ and the screen inclination ⁇ .
  • the screening machine shown in FIGS. 2 to 5 has the fundamental constructive ability to achieve such a high screen index.
  • As a basic design element it has a base frame 1, damping springs 2, a base bearing frame 3, a sieve box 4, unbalance motors 6, and energy storage spring assemblies 5 arranged between the base frame 3 and the sieve box 4.
  • rear damping springs 2 are supported by a foot 7 on the rear transverse strut 8 of the base frame 1.
  • a vertically above support bridge 9 is erected on the horizontal traverse 10 a vertically acting piston-cylinder drive 11 is arranged.
  • a height-adjustable lifting frame 13 is suspended, at the lower cross-beam 14, the two front damping springs 2 of the base bearing frame 3 are supported.
  • the coupling of the four damping springs 2 to the base support frame 3 is in each case via a pivot bearing 15, the pivot axis extends horizontally in the transverse direction.
  • the base support frame 3 itself is essentially composed of two cheeks which form the longitudinal sides 16, 17 and two cheeks which connect them transversely at the ends and which form the transverse sides 18, 19. Due to the thus delimited frame opening of the base storage frame 3, passing through the sieve plate 20 of the sieve box 4 fine screenings fall down and be transported by a transport mechanism not shown here.
  • the screen box 4 which corresponds essentially to the base bearing frame 3 in its ground plan, is bounded on two longitudinal sides 21, 22 and the rear transverse side 23 by vertical cheeks with reference to FIG. At the front transverse side 24 of the sieve box 4 is open, so that there is not passed through the sieve tray 20 through coarse screenings can be led away from the sieve plate 20.
  • the sieve bottom 20 itself is formed by staggered, lined sieve inserts 25, whose nets, not shown, have a mesh width of, for example, 5 ⁇ m, as required for the separation of fine sand from oil silt.
  • the screen box 4 is fastened via eight energy storage spring assemblies 5, which are distributed over its longitudinal sides 21, 22, with a vertical spacing permitting the screen vibration above the base bearing frame 3.
  • These energy storage spring assemblies 5 are each formed by a double spring assembly consisting of coaxial pairs, head 29 at head 30 juxtaposed coil springs 26, 27, wherein the screen box 4 respectively with a box-fixed bearing 28 between the pairs associated heads 29, 30 of the coil springs 26, 27 is clamped.
  • Each bearing 28 is formed by a bearing bracket 31 with a laterally projecting from the sieve box clamping bearing flange 32.
  • the coil springs 26, 27 are under a bias, which allows an increase in the vibration amplitude of the sieve box 4 by three times that of the base bearing frame 3. This achieves the desired high K v value of 9.5 g.
  • the latter has on its longitudinal sides 16, 17, laterally projecting support brackets 33, on each of which the lower coil springs 26 rest.
  • support brackets 33 projects in Fig. 3 indicated by dashed lines, rigidly coupled thereto support rod 34 upwards, on the free end of a lid-like counter-holder 35 is placed.
  • the support rod 34 passes through the clamping bearing flange 32 of the bearing bracket 31 of the screen box 4 under lateral clearance.
  • each energy storage spring assembly 5 is clamped between this chuck bearing flange 32 and the anvil 35.
  • Fig. 3 are the energy storage spring assemblies 5 with their spring direction 36 at a small acute angle ⁇ of an optimal manner about 20 ° to the vertical, which defines the throw angle of the sieve box 4.
  • the joint line of the unbalance motors 6 is aligned in the same direction as the spring assemblies 5. Due to the height-adjustable lifting frame 13 of the screen tilt angle can be set as such.

Landscapes

  • Combined Means For Separation Of Solids (AREA)
  • Vibration Prevention Devices (AREA)
EP07016980A 2006-09-07 2007-08-30 Crible, en particulier un crible à résonance spécifique pour des mélanges difficilement séparables, comme les mélanges de sable et d'huile lourde Not-in-force EP1897627B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006041989A DE102006041989B4 (de) 2006-09-07 2006-09-07 Siebmaschine insbesondere für schwer trennbare Gemische, wie Schweröl-Sand-Gemische

Publications (3)

Publication Number Publication Date
EP1897627A2 true EP1897627A2 (fr) 2008-03-12
EP1897627A3 EP1897627A3 (fr) 2010-01-06
EP1897627B1 EP1897627B1 (fr) 2012-08-15

Family

ID=38805651

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07016980A Not-in-force EP1897627B1 (fr) 2006-09-07 2007-08-30 Crible, en particulier un crible à résonance spécifique pour des mélanges difficilement séparables, comme les mélanges de sable et d'huile lourde

Country Status (4)

Country Link
US (1) US20080217219A1 (fr)
EP (1) EP1897627B1 (fr)
DE (1) DE102006041989B4 (fr)
ES (1) ES2391787T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102225392A (zh) * 2011-04-08 2011-10-26 鞍山重型矿山机器股份有限公司 智能防堵孔振动筛
CN101690929B (zh) * 2009-09-29 2012-07-18 东北大学 一种四机驱动自同步振动筛及结构参数确定方法
CN103302022A (zh) * 2013-05-31 2013-09-18 吉铨精密机械(苏州)有限公司 一种多层分选直线式振动筛
WO2017202929A1 (fr) 2016-05-25 2017-11-30 Dynamic Screening Systems Limited Machine à tamiser permettant de tamiser un matériau selon la taille

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009009092A1 (de) 2009-02-14 2010-08-26 Zöllner, Thorsten Siebboden zum Einbau in Siebmaschinen
US8915375B2 (en) * 2010-11-08 2014-12-23 Terex Usa, Llc Vibrating screen suspension systems
CN102671856A (zh) * 2011-02-21 2012-09-19 李卓 一种强振筛
CN102671857A (zh) * 2011-03-13 2012-09-19 李卓 一种双质体共振筛
CN103769363B (zh) * 2014-02-20 2015-11-25 唐山陆凯科技有限公司 一种改进的共振式振动筛
CN103990598B (zh) * 2014-06-16 2015-12-30 鞍山市万瑞矿山设备制造有限公司 双电机启动连杆式共振筛
CN106925513A (zh) * 2015-12-30 2017-07-07 奥瑞（天津）工业技术有限公司 新型振动筛激振器
CN107150104A (zh) * 2016-03-02 2017-09-12 科华控股股份有限公司 一种3d打印机加砂过滤顺畅和减少振动噪声的过滤网架
CN105855165A (zh) * 2016-06-21 2016-08-17 江苏金宝重工有限公司 一种石料振动筛
US10456809B1 (en) * 2017-03-28 2019-10-29 Conrad Leon Nagel Vibrating screen for an inlet hopper of a conveyor
CN114013914A (zh) * 2021-11-30 2022-02-08 徐州宏武纳米科技有限公司 一种高效的碳化硅冶炼出料设备

Citations (2)

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Publication number Priority date Publication date Assignee Title
DE628949C (de) 1932-04-21 1936-11-27 Georg Heinrich Schieferstein Foerderung von Massengut durch schwingende Siebe oder Rinnen
US2353492A (en) 1942-01-16 1944-07-11 John C O'connor Vibration producing mechanism

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US3032175A (en) * 1958-02-26 1962-05-01 Cleveland Vibrator Co Vibrated conveyor
US3112653A (en) * 1958-11-28 1963-12-03 Chain Belt Co Amplitude control of constant speed vibratory equipment
DE1812372A1 (de) * 1968-12-03 1970-06-18 Franz Liesenklas Resonanz-Siebmaschine mit Oberwellenerregung
DE6811940U (de) * 1968-12-18 1974-09-05 Haver & Boecker Siebmaschine
US4017060A (en) * 1971-12-09 1977-04-12 International Combustion Australia Limited Tuned vibratory feeders
US4040303A (en) * 1975-09-05 1977-08-09 Fmc Corporation Two mass vibratory material handling apparatus and methods of manufacturing and fine tuning the same
US4082657A (en) * 1976-01-19 1978-04-04 Gage Ernest L Separator apparatus
DE3322012A1 (de) * 1983-06-18 1984-12-20 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Siebmaschine
US4795552A (en) * 1987-04-24 1989-01-03 Telsmith, Inc. Natural frequency vibrating screen
DE3716664A1 (de) * 1987-05-19 1988-12-01 Buehler Miag Gmbh Auslesemaschine fuer koerniges gut
US5279425A (en) * 1992-06-04 1994-01-18 Botos Alex M Stackable screen module arrangement
AUPQ931100A0 (en) * 2000-08-09 2000-08-31 Ludowici Mineral Processing Equipment Pty Ltd Screening apparatus
US6669026B2 (en) * 2000-11-01 2003-12-30 Ohio Central Steel Company Portable screening plant with displaceable eccentric
US6382424B1 (en) * 2001-04-03 2002-05-07 Christopher J. Bolton Portable screening device and method
GB0122852D0 (en) * 2001-09-21 2001-11-14 Russel Finex Seiving apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE628949C (de) 1932-04-21 1936-11-27 Georg Heinrich Schieferstein Foerderung von Massengut durch schwingende Siebe oder Rinnen
US2353492A (en) 1942-01-16 1944-07-11 John C O'connor Vibration producing mechanism

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101690929B (zh) * 2009-09-29 2012-07-18 东北大学 一种四机驱动自同步振动筛及结构参数确定方法
CN102225392A (zh) * 2011-04-08 2011-10-26 鞍山重型矿山机器股份有限公司 智能防堵孔振动筛
CN103302022A (zh) * 2013-05-31 2013-09-18 吉铨精密机械(苏州)有限公司 一种多层分选直线式振动筛
WO2017202929A1 (fr) 2016-05-25 2017-11-30 Dynamic Screening Systems Limited Machine à tamiser permettant de tamiser un matériau selon la taille
US11141760B2 (en) 2016-05-25 2021-10-12 Finbawn Ltd Screening machine for screening material according to size
AU2017269489B2 (en) * 2016-05-25 2022-04-21 Finbawn Ltd A screening machine for screening material according to size

Also Published As

Publication number Publication date
EP1897627B1 (fr) 2012-08-15
DE102006041989B4 (de) 2009-06-04
EP1897627A3 (fr) 2010-01-06
DE102006041989A1 (de) 2008-03-27
ES2391787T3 (es) 2012-11-29
US20080217219A1 (en) 2008-09-11

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