DE2636851A1 - Hard rubber compsn. for filter press plates and frames - of natural rubber and SBR with aluminium silicate - Google Patents

Hard rubber compsn. for filter press plates and frames - of natural rubber and SBR with aluminium silicate

Info

Publication number
DE2636851A1
DE2636851A1 DE19762636851 DE2636851A DE2636851A1 DE 2636851 A1 DE2636851 A1 DE 2636851A1 DE 19762636851 DE19762636851 DE 19762636851 DE 2636851 A DE2636851 A DE 2636851A DE 2636851 A1 DE2636851 A1 DE 2636851A1
Authority
DE
Germany
Prior art keywords
rubber
frames
acid
sbr
natural rubber
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.)
Ceased
Application number
DE19762636851
Other languages
German (de)
Inventor
Andrei Dipl Ing Mesea
Gheorghe Nedelcu
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.)
INDEPENDENTA SIBIU INTREPRINDE
Original Assignee
INDEPENDENTA SIBIU INTREPRINDE
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 INDEPENDENTA SIBIU INTREPRINDE filed Critical INDEPENDENTA SIBIU INTREPRINDE
Priority to DE19762636851 priority Critical patent/DE2636851A1/en
Publication of DE2636851A1 publication Critical patent/DE2636851A1/en
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
    • B01D25/001—Making filtering elements not provided for elsewhere
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
    • B01D25/12—Filter presses, i.e. of the plate or plate and frame type
    • B01D25/21—Plate and frame presses
    • B01D25/215—Construction of the filter plates, frames
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L21/00—Compositions of unspecified rubbers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L45/00—Compositions of homopolymers or copolymers of compounds having no unsaturated aliphatic radicals in side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic or in a heterocyclic ring system; Compositions of derivatives of such polymers
    • C08L45/02—Compositions of homopolymers or copolymers of compounds having no unsaturated aliphatic radicals in side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic or in a heterocyclic ring system; Compositions of derivatives of such polymers of coumarone-indene polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L7/00—Compositions of natural rubber

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Filtration Of Liquid (AREA)
  • Filtering Materials (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

Rubber compsn. for moulding of plates and frames for filter presses, contg. natural rubber 32%, SBR 21.35%, coumarone resin 1.6%, Al silicate 37%, mineral oil 19.25% zinc oxide 2.67%, stearic acid 1.61%, sulphur 1.22%, di-p-chlorophenyl acid 0.53% and MBT 0.75%. Amount of metal and wt. of the plates and frames are much less than with cast iron components. They are long-lasting, easily manipulated in the filtering process, do not deform under load and are resistant to acids and alkalis. They are economical to mfr., with short production times, and not subject to breakage.

Description

Mischung für Gummiplatten und -rahmen für FilterpressenMixture for rubber sheets and frames for filter presses

sowie Verfahren zu ihrer Herstellung DieErfindung betrifft eine Mischung zur Herstellung von Gummiplatten und -rahmen für Filterpressen sowie ein Verfahren zu deren Herstellung. and methods of making them. The invention relates to a mixture for the production of rubber plates and frames for filter presses and a process for their production.

Verschiedene Arten von Filterelementen sind bekannt. Es gibt Filterelemente, deren Platten und Rahmen aus Holz, Gußeisen, Kunststoff oder Weichgummi mit Stahleinlage hergestellt sind. Bei Filteniementen aus Gußeisen ist es nachteilig, daß sie durch ihr großes Gewicht sehr schwer zu handhaben sind und auch, daß sie bruchanfällig sind. Ihre Herstellungskosten sind hoch. Filterelemente aus Holz sind dort wenig brauchbar, wo das Filtergut Säuren oder Laugen enthält. Filterelemente aus Kunststoff sind in der Herstellung teuer, je nach dem verwendeten Kunststoff haben sie auch andere Nachteile. Filterelemente, die aus Weichgummi mit einem Stahlgerüst als Einlage hergestellt sind, haben den Nachteil, daß sich ihre Filterfläche während des Pressens durch Verformen von Kanälen verringert.Various types of filter elements are known. There are filter elements their panels and frames made of wood, cast iron, plastic or soft rubber with a steel insert are made. When Filteniementen made of cast iron, it is disadvantageous that they through their great weight are very difficult to handle and also that they are prone to breakage are. Their manufacturing costs are high. There are few filter elements made of wood useful where the filter material has acids or contains alkalis. Filter elements made of plastic are expensive to manufacture, depending on the plastic used they also have other disadvantages. Filter elements made from soft rubber with a steel frame are made as an insert, have the disadvantage that their filter surface during of pressing by deforming channels is reduced.

Die Erfindung vermeidet diese Nachteile. Es ist die Aufgabe der Erfindung, ein relativ preiswert herstellbares, gegen die Einwirkung von Säuren und Laugen wenig empfindliches, bruchunanfälles, sich kaum verformendes Filterelement zu schaffen.The invention avoids these disadvantages. It is the object of the invention a relatively inexpensive one that can be produced against the effects of acids and alkalis to create a filter element that is not very sensitive, does not break easily and is hardly deforming.

Die Erfindung besteht darin, daß die Filterplatten und Jilterrahmen aus einer Mischung folgender Zusamiensetzung: 32% natürlicher Kautschuk 21,35Z künstlicher Kautschuk (Butadienstyrolkautschuk) 1,6Z Kuiaronharz 37X Aluninium-Silikat 19,25Z mineralisches öl 2,672 Zinkoxyd 1,612 Stearinsäure 1,22Z Schwefel 0,532 Di-p-Chlorphenyl-Sä#re (Bis-p-Chlorfenil-Säure) 0,7% Merkaptobenzothiazol durch Vulkanisation unter Druck hergestellt werden, indem nach zehn Minuten die Prelmatrize zum ersten Mal ntlffiftet wird, nach weiteren zehn Minuten ein zweites Mal entlüftet wird und anschließend unter Druck vierzig Minuten lang vulkanisiert wird.The invention consists in that the filter plates and Jilterrahmen from a mixture of the following composition: 32% natural rubber 21.35Z artificial Rubber (butadiene styrene rubber) 1.6Z Kuiaron resin 37X aluminum silicate 19.25Z mineral oil 2.672 zinc oxide 1.612 stearic acid 1.22Z sulfur 0.532 di-p-chlorophenyl acid (Bis-p-chlorfenil acid) 0.7% mercaptobenzothiazole by vulcanization under pressure can be made by lifting the pre-mold for the first time after ten minutes will, is vented a second time after a further ten minutes and then under Pressure is vulcanized for forty minutes.

Das Wesen der vorliegenden Erfindung ist anhand eines in der Zeichnung schematisch dargestellten Ausführungsbeispieles näher erläutert. Es zeigen: Fig. 1 eine Gesamtansicht der Filterplatte und einen Schnitt längs der Linie A-A in Vergrößerung sowie in vargrößerter Darstellung eine Ecke der Platte.The essence of the present invention is based on one in the drawing schematically illustrated embodiment explained in more detail. They show: Fig. 1 shows an overall view of the filter plate and a section along the line A-A in enlargement as well as a corner of the plate in an enlarged view.

Fig. 2 eine Gesamtansicht des Rahmens sowie einen Schnitt längs der Linie B-B in vergrößerter Darstellung.Fig. 2 is an overall view of the frame and a section along the Line B-B in an enlarged view.

Fig. 3 eineAnsicht des Matrizenunterteiles für die Vulkanisation.Fig. 3 is a view of the die base for vulcanization.

Man bereitet ein Gemisch folgender Zusammensetzung (Gewichtsprozente): 32% natürlicher Kautschuk 21,35% künstlicher Kautschuk (Butadienstyrolkautschuk) 1,6% Kumaronharz 37% Aluminium-Silikat 19,25Z mineralisches öl 2,67Z Zinko#y.1 1,61% Stearinsäure 1,22% Schwefel 0,53% Di-p-Chlorphenyl-Säure (Bis-p-Chlorfenil-Säure) 0,75% Merkaptobenzothiazol Die Masse wird gemischt und zu Platten von einer Dicke von 8 bis 10 mm gewalzt. Diese Platten werden in Streifen von 60 bis 80 mm Breite geschnitten. Für die Herstellung der Platten nach Fig. 1 wird eine Masse von 34 kg und fllr den Rahmen wird eine Masse von 30 kg benutzt.Prepare a mixture of the following composition (percentages by weight): 32% natural rubber 21.35% artificial rubber (butadiene styrene rubber) 1.6% coumarone resin 37% aluminum silicate 19.25Z mineral oil 2.67Z Zinko # y.1 1.61% Stearic acid 1.22% sulfur 0.53% di-p-chlorophenyl acid (bis-p-chlorfenil acid) 0.75% mercaptobenzothiazole The mass is mixed and made into plates rolled from a thickness of 8 to 10 mm. These plates come in strips of 60 cut to a width of 80 mm. For the production of the plates according to FIG. 1, a A weight of 34 kg and a weight of 30 kg for the frame.

Für die Herstellung benötigt man eine 1.500 Tonnen-Vulkanisationspresse. Damit man sowohl eine Platte als auch einen Rahmen gleichzeitig herstellen kann, befestigt man entsprechende Matrizen auf einer derartigen Presse.A 1,500 ton vulcanization press is required for production. So that you can make both a panel and a frame at the same time, appropriate dies are attached to such a press.

Die Matrize für die Vulkanisation der Platte nach Fig. 1 ist mit einem aus drei Teilen bestehenden Metalltei#ersehen, um die Aussparung a herstellen zu kennen. Die geschnittenen Streifen werden in den unteren Teil der Matritze eingelegt, wobei der Metallkeil festgehalten wird.The die for the vulcanization of the plate according to Fig. 1 is with a made of three pieces of metal # in order to produce the recess a know. The cut strips are placed in the lower part of the die, holding the metal wedge in place.

Dann wird über die geschnittenen Gummistreifen eine Metallverstärkung gelegt. Sodann wir4ine neue Schicht geschnittener Gummistreifen eingelegt und mit diesen die Metallverstärkung bedeckt. In ähnlicher Weise wird die Matrize für den Rahmen gemäß Fig. 2 mit Gummistreifen beschickt. Auch hier ist ein aus drei Teilen bestehender konischer Metallkeil vorgesehen, um die Aussparung b zu bilden.Ausserdem sinQnoch acht Stützstifte vorgesehen, die die Metallverstärkung festhalten, welche inden Rahmen eingepreßt wird. Diese soll eine entsprechende Festigkeit des Rahmens sichern. Die Stützdtifte müssen so ausgelegt sein, daß sie den Preßdruck aushalten.Then a metal reinforcement is placed over the cut rubber strips placed. Then we put in a new layer of cut rubber strips and take it with them this is covered by the metal reinforcement. Similarly, the die for the Frame according to FIG. 2 loaded with rubber strips. Again, it's one of three parts existing conical metal wedge provided to form the recess b Eight support pins are also provided to hold the metal reinforcement in place is pressed into the frame. This should give the frame a corresponding strength to back up. The support pins must be designed so that they can withstand the pressure.

Nach dem ersten Pressen wird nach 10 Minuten die Matrize zum erstenMal entlüftet, um die Bildung von Luftblasen zu verhindern. Diese Entlüftung wird nach zehn Minuten wiederholt. Dann wird die Matrize wieder gepreßt und vierzig Minuten lang vulkanisiert. Nach der Durchrührung dieser Vorgänge werden die Platten und Rahmen aus der Matrize herausgenommen, entgratet und gekühlt.After the first pressing, after 10 minutes the die becomes the first time vented to prevent air bubbles from forming. This venting is after repeated ten minutes. Then the die is pressed again and Fourty Vulcanized for minutes. After these operations are carried out, the panels and frame removed from the die, deburred and cooled.

Das Gummi der so erhaltenen Filterelemente weist eine Bruchdehnung von 130 bis 150%, eine Zugfestigkeit von 2 90 bis 93 kg/cm², eine Shorehärte 90 bis 93, eine Elastizitrat von 25%, einen Modul von 100Z bei 98 kg/cm² und ein spezifisches Gewicht von 1,18 auf. Die Filterelemente sind laugenfest bis zu einer Konzentration von 10% Na O H.The rubber of the filter elements obtained in this way has an elongation at break from 130 to 150%, a tensile strength of 2 90 to 93 kg / cm², a Shore hardness of 90 to 93, an elasticity of 25%, a modulus of 100Z at 98 kg / cm² and a specific Weight of 1.18 on. The filter elements are alkali-resistant up to one concentration of 10% Na O H.

Die Gummiplatten und -rahmen nach der Erfindung haben folgende Vorteile: -Einsparung von Metall -längere#:Lebensdauer -leichte Bedienbarkeit im Laufe der Filterprozesse - geringe Herstellungszeiten.The rubber sheets and frames according to the invention have the following advantages: -Saving of metal -longer #: service life -easy operability in the course of the Filter processes - short manufacturing times.

LeerseiteBlank page

Claims (2)

patentansprüche: 1. Gummimischung für die Herstellung von Gummiplatten und Gummirahmen als Filterelemente für Filterpressen, gekennzeichnet durch 32% natürlicher Kautschuk 21,35X künstlicher Kautschuk (Butadlenstyrolkautschuk) 1,6X Kumaronharz 37X Aluminium-Silikat 19,25Z mineralisches 61 2,672 Zinkoxyd 1,612 Stearinsäure 1,222 Schwefel 0,532 Di-p-Chlorphenyl-SSure (Bis-p-Chlorfenil-Säure) 0,75% Nerkaptobenzothiazol.Patent claims: 1. Rubber compound for the production of rubber sheets and rubber frames as filter elements for filter presses, characterized by 32% more natural Rubber 21.35X artificial rubber (butadlene styrene rubber) 1.6X coumarone resin 37X aluminum silicate 19.25Z mineral 61 2.672 zinc oxide 1.612 stearic acid 1.222 sulfur 0.532 di-p-chlorophenyl-S-acid (bis-p-chlorfenil-acid) 0.75% nerkaptobenzothiazole. 2. Verfahren zur Herstellung von Gunmiplatten und Gummirahmen als Filterelemente für Filterpressen, dadurch gekennzeichnet, daß man ein Gemisch folgender Zusammensetzung bereitet: 32% natürlicher Kautschuk 21,352 künstlicher Kautschuk (Butadienstyrolkautschuk) 1,6X Kumaronharz 37X Aluminium-Silikat 19,25% mineralisches öl 2,67% Zinkoxyd 1,61% Stearinsäure 1,22% Schwefel 0,53% Di-p-Chlorphenyl-Säure (Bis-p-Chlorfenil-Säure) 0,75Z Xerkaptobenzothiazol, daß mandieses Gemisch in Matrizen einer Vulkanisationspresse zusammen mit Metalleinlagen einlegt, zehn Minuten preßt, dann entlilftet,nach weiteren zehn Minuten Pressens die Entlüftungwiederholt und anschließend unter Druck vierzig Minuten lang vulkanisiert.2. Process for the production of gun plates and rubber frames as Filter elements for filter presses, characterized in that a mixture of the following Composition prepares: 32% natural rubber 21,352 artificial rubber (Butadiene styrene rubber) 1.6X coumarone resin 37X aluminum silicate 19.25% mineral oil 2.67% zinc oxide 1.61% stearic acid 1.22% sulfur 0.53% di-p-chlorophenyl acid (Bis-p-chlorfenil acid) 0.75Z xerkaptobenzothiazole, that this mixture in matrices insert a vulcanization press together with metal inserts, press for ten minutes, then vented, after a further ten minutes of pressing the venting is repeated and then vulcanized under pressure for forty minutes.
DE19762636851 1976-08-16 1976-08-16 Hard rubber compsn. for filter press plates and frames - of natural rubber and SBR with aluminium silicate Ceased DE2636851A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19762636851 DE2636851A1 (en) 1976-08-16 1976-08-16 Hard rubber compsn. for filter press plates and frames - of natural rubber and SBR with aluminium silicate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762636851 DE2636851A1 (en) 1976-08-16 1976-08-16 Hard rubber compsn. for filter press plates and frames - of natural rubber and SBR with aluminium silicate

Publications (1)

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DE2636851A1 true DE2636851A1 (en) 1978-02-23

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103816718A (en) * 2013-12-31 2014-05-28 广东省第二中医院 Bacteriostatic air filtering material made from rhizoma coptidis-nanometre zinc oxide ultra-fine fibre glass
CN116983725A (en) * 2023-09-27 2023-11-03 力顿机械(福建)有限公司 High-strength filter plate and preparation method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103816718A (en) * 2013-12-31 2014-05-28 广东省第二中医院 Bacteriostatic air filtering material made from rhizoma coptidis-nanometre zinc oxide ultra-fine fibre glass
CN116983725A (en) * 2023-09-27 2023-11-03 力顿机械(福建)有限公司 High-strength filter plate and preparation method thereof
CN116983725B (en) * 2023-09-27 2023-12-05 力顿机械(福建)有限公司 High-strength filter plate and preparation method thereof

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