DE602110C - Self-cleaning vibrating sieve - Google Patents

Self-cleaning vibrating sieve

Info

Publication number
DE602110C
DE602110C DESCH96204D DESC096204D DE602110C DE 602110 C DE602110 C DE 602110C DE SCH96204 D DESCH96204 D DE SCH96204D DE SC096204 D DESC096204 D DE SC096204D DE 602110 C DE602110 C DE 602110C
Authority
DE
Germany
Prior art keywords
linings
screen
self
sieve
cleaning
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.)
Expired
Application number
DESCH96204D
Other languages
German (de)
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.)
Darmstadt Maschf GmbH
Carl Schenck AG
Original Assignee
Darmstadt Maschf GmbH
Carl Schenck Eisengiesserei und Maschinenfabrick Darmstadt GmbH
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.)
Filing date
Publication date
Application filed by Darmstadt Maschf GmbH, Carl Schenck Eisengiesserei und Maschinenfabrick Darmstadt GmbH filed Critical Darmstadt Maschf GmbH
Priority to DESCH96204D priority Critical patent/DE602110C/en
Application granted granted Critical
Publication of DE602110C publication Critical patent/DE602110C/en
Expired legal-status Critical Current

Links

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
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/50—Cleaning
    • 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

Landscapes

  • Combined Means For Separation Of Solids (AREA)

Description

Selbstreinigendes Schwingsieb Zwecks selbsttätiger Reinigung von Schwingsiebbelägen während des Betriebs ist vorgeschlagen worden, zwei Siebbeläge übereinander anzuordnen, die infolge der Schwingung des Siebrahmens zu gewissen Schwingungsausschlägen relativ zu den Schwingungen des Siebrahmens veranlaßt werden. Es ist vorgeschlagen worden, hierbei Siebgewebe von verschiedenen Eigenschwingungszahlen zu benutzen, die entweder durch den gespannten oder ungespannten Zustand des Siebbelags und bzw. oder durch die verschiedenen Drahtstärken der beiden Siebe hervorgerufen wurden. Zu diesem Zweck konnten die beiden Siebbeläge durch eine an sich bekannte Spannvorrichtung gemeinsam gespannt werden. Es ist hierbei aber unmöglich, die resultierenden Eigenbewegungen des ganzen Siebbodens und die gewünschte Relativbewegung der beiden Beläge zueinander nach Belieben, und zwar entsprechend den jeweiligen Bedürfnissen, etwa, der Beschaffenheit und Feuchtigkeit des Materials usw., einzustellen.-Nach dem Erfindungsgedanken sollen diese Nachteile dadurch vermieden werden, daß jeder der übereinanderliegenden Siebbeläge mittels einer besonderen an sich bekannten Spannvorrichtung unabhängig von der Spannung des anderen Siebbelags gespannt werden kann. Man hat durch diese Anordnung die resultierende Bewegung des ganzen Sieb-Bodens vollkommen in der Hand. Man kann beispielsweise durch entsprechende Spannung eines jeden ,Siebbelags die Ausschläge desselben in genauester Weise regeln und gleichzeitig ein beliebiges Verhältnis der Eigenschwingungszahlen der Siebböden zueinander einhalten. Beispielsweise kann das Tragsieb sehr straff gespannt, die Spannung des Nutzsiebes dagegen vermindert werden und umgekehrt, so daß beide Gewebe während der Arbeitsschwingung sich gegenseitig berühren. Die Spannung kann auch so vorgesehen werden, daß nicht eine Berührung der Siebgewebe selbst, sondern nur eine derartige Annäherung stattlindet, daß in den Älaschen steckengebliebenes Überkorn durch den anderen Siebbelag wieder herausgeschleudert wird.Self-cleaning vibrating screen For automatic cleaning of vibrating screen coverings During operation, it has been suggested to arrange two screen linings on top of each other, due to the vibration of the screen frame to certain vibration deflections relative caused to the vibrations of the sieve frame. It has been suggested to use screen mesh of different natural frequencies, either by the tensioned or untensioned state of the screen lining and / or by the different wire sizes of the two screens were caused. To this The purpose of the two screen linings could be through a known clamping device be tensioned together. However, it is impossible here to determine the resulting proper movements of the entire sieve bottom and the desired relative movement of the two linings to one another at will, according to the respective needs, for example, the nature and moisture of the material, etc., according to the idea of the invention these disadvantages are avoided in that each of the superimposed screen linings by means of a special tensioning device known per se, independent of the tension of the other screen lining can be tensioned. With this arrangement you have the resulting one Movement of the whole sieve bottom completely in your hand. One can for example by corresponding tension of each, screen lining the deflections of the same in regulate the most precise way and at the same time any ratio of the natural frequencies of the sieve trays to each other. For example, the strainer can be very tight tensioned, the tension of the utility screen, on the other hand, reduced and vice versa, see above that both tissues touch each other during the working oscillation. The voltage can also be provided in such a way that there is no contact with the screen fabric itself, but only such a rapprochement takes place that something got stuck in the lashes Oversized grain is thrown out again through the other screen cloth.

Die Ausbildung der Spannvorrichtung als solche spielt bei dem Erfindungsgedanken keine Rolle. Es lassen sich hierfür die meisten Anordnungen bekannter Spannvorrichtungen benutzen, sofern sie so ausgebildet sind, daß sie die Spannung des anderen Siebgewebes in keiner Weise beeinflussen.The design of the clamping device as such plays a role in the idea of the invention not matter. Most arrangements of known clamping devices can be used for this purpose use, provided they are designed so that they take the tension of the other screen mesh in no way affect.

An Stelle zweier Siebbeläge können auch mehrere Siebbeläge angeordnet werden, wobei die Maschenweite der darunterliegenden Siebgewebe zweckmäßig zunimmt.Instead of two screen linings, several screen linings can also be arranged the mesh size of the underlying screen fabric increases appropriately.

Claims (1)

PATENTANSPRUCH: Selbstreinigendes Schwingsieb, bei dem der oder die Siebböden aus mehreren derartig unmittelbar übereinanderliegenden Siebbelägen bestehen, daß ein Gegeneinanderschlagen der Beläge stattfindet, dadurch gekennzeichnet, daß die Spannung dieser Siebbeläge vollkommen unabhängig voneinander durch an sich bekannte Spannvorrichtungen erfolgt, so daß die Schwingungseigenschaften der einzelnen Beläge und ihr Verhältnis zueinander bei jeder Antriebsfrequenz zum Zweck der Reinigung der Siebbeläge beliebig und zweckmäßig eingestellt werden können. PATENT CLAIM: Self-cleaning vibrating screen, in which the sieve tray or trays consist of several sieve linings that are directly above one another in such a way that the linings hit each other, characterized in that the tensioning of these sieve linings takes place completely independently of one another by tensioning devices known per se, so that the vibration properties of the individual Linings and their relationship to one another at any drive frequency for the purpose of cleaning the screen linings can be adjusted as desired and expediently.
DESCH96204D 1931-12-04 1931-12-04 Self-cleaning vibrating sieve Expired DE602110C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DESCH96204D DE602110C (en) 1931-12-04 1931-12-04 Self-cleaning vibrating sieve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH96204D DE602110C (en) 1931-12-04 1931-12-04 Self-cleaning vibrating sieve

Publications (1)

Publication Number Publication Date
DE602110C true DE602110C (en) 1934-09-01

Family

ID=7445830

Family Applications (1)

Application Number Title Priority Date Filing Date
DESCH96204D Expired DE602110C (en) 1931-12-04 1931-12-04 Self-cleaning vibrating sieve

Country Status (1)

Country Link
DE (1) DE602110C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1036782B (en) * 1954-10-22 1958-08-21 Gerhard Hoppe Dipl Ing Sieve bottom for vibrating sieves, especially for sieving fine coal
DE1072868B (en) * 1960-01-07 Hein, Lehmann £k Co Aktiengesellschaft, Dusseldorf Vibrating sieve, especially for wet fine material
DE3013737A1 (en) * 1980-04-10 1981-10-22 Hein Lehmann Ag Screening appts. for lumpy difficult-to-sieve material - has flexible double mat with larger openings over vibrating sieve mat to prevent clogging
EP0169698A2 (en) * 1984-07-21 1986-01-29 Thule United Limited Improvements in filtering screens

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1072868B (en) * 1960-01-07 Hein, Lehmann £k Co Aktiengesellschaft, Dusseldorf Vibrating sieve, especially for wet fine material
DE1036782B (en) * 1954-10-22 1958-08-21 Gerhard Hoppe Dipl Ing Sieve bottom for vibrating sieves, especially for sieving fine coal
DE3013737A1 (en) * 1980-04-10 1981-10-22 Hein Lehmann Ag Screening appts. for lumpy difficult-to-sieve material - has flexible double mat with larger openings over vibrating sieve mat to prevent clogging
EP0169698A2 (en) * 1984-07-21 1986-01-29 Thule United Limited Improvements in filtering screens
EP0169698A3 (en) * 1984-07-21 1988-05-25 Thule United Limited Improvements in filtering screens and methods of production thereof

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