FR2628026A1 - FACILITY FOR FEEDING MACHINES WITH PLASTIC CERAMIC MASS BOLTS - Google Patents

Abstract

a) Installation for supplying shaping machines with strands of plastic ceramic masses. b) Installation characterized in that a filtration device 4 consisting of one or more cells, operating on the principle of electro-osmosis, and constituting part of a timed shaping line 10 is connected to a central tank slip 1 via a tubular pipe 3 and a membrane pump 2 connected between the tank and this device, while below the filtration device 4 there is provided a mixer 5 which is directly coupled the vacuum press 6 of a shaping part 9. c) The installation for supplying shaping machines with strands of plastic ceramic masses.

Description

(FRENCH REPUBLIC No of publication: 2 628 026 (to be used only

  for INSTITUTE NATIONAL Reproduction Orders)

PROPERTY = INDUSTRIAL-

  OF INDUSTRIAL PROPERTY - National Registration No .: 89 01526 PARIS

(Int Cl4: B 28 B 15/00.

@ APPLICATION FOR PATENT OF INVENTION Ai

  Filing Date: February 7, 1989. (Applicant (s): VEB THURINGIA SONNEBERG DD.

  () Priority: DD, 3 March 1988, No. WP B 28 B / 311 621-3.

  (Inventor (s): Dagmar Hûlsenberg: Ulrich Knye, Reiner Luthardt, Wolfgang Gernlein, Bernd Heublein: G nter

  Date of the public availability of the Kr ger: Christine Jakob; Uwe Heinold.

  application: BOPI "Patents" No. 36 of 8 September 1989,

  References to other national documents appearing

: Holder (s)

  (Agent (s): Cabinet Herrburger.

  Installation for feeding shaping machines with rolls of plastic ceramic masses.

  (a) Installation to feed forming machines

  with rolls of plastic ceramic masses. 1.

  b) Installation characterized in that a filtration device [4 [o

  4 consisting of one or more cells. operating on:

  principle of electro-osmosis. and constituting part of a clocked line 10 is connected to a central slip tank 1 via a tubular pipe 3

  and a diaphragm pump 2 connected between the tank and.

  q = this device, while below the filter device 4 U: <there is provided a mixer 5 which is directly coupled to the

  vacuum press 6 of a shaping part 9..i ....

  I (c) The installation for feeding shaping machines, "

  with rolls of plastic ceramic masses.

  OCD N c0 N Sale of fascicles at NATIONAL PRINTING 27, rue de la Convention 75732 PARIS CEDEX 15 N oe oL Sales of fascicles at the NATIONAL PRINTING CENTER. 27. rue de la Convention - 75732 PARIS CEDEX 15 "Installation to feed forming machines

  with rolls of plastic ceramic masses. "

  The invention relates to an installation for feeding shaping machines, such as for

  example of lines clocked for the dishes, with.

  rolls of plastic ceramic masses.

  It is known to evacuate under pressure, especially

  shot of slip tanks, ceramic slip

  by means of diaphragm pumps in pres-

  its which are installed in separate premises. The

  Filtration cakes thus obtained are then homo-

  generated in: vacuum presses and shaped to form piles of masses, then stacked on pallets, provisionally stored, and transported

  according to the needs of the different machines

  ge o they are powered manually. These piles of mas-

  they arrive via food gangs

  in the vacuum presses associated with the

  forming machines, for example a timed line for making plates, presses by means of which the mass slabs required for forming are manufactured. The disadvantages of this technology are a very low level of automation, a large footprint and a significant expenditure of energy and manpower. But a particular disadvantage of

  this technology lies mainly in the fact that

  centralization of mass piles, only two to three different humidities of the mass can be achieved, the moisture content in the case of piles of

  too dry masses can no longer be corrected and a human

  mass mimic optimally adapted to the differences

  products is not feasible. Because of this, he

  constantly arrives that masses of loads determine

  are not usable and must be re-used

  prepared. In addition, a mass moisture does not

  in the shaping process and in the subsequent process steps, eg enamel baking, defects in quality, such as

  unformed feet and plate edges

  Doles. The problem posed to the invention is to create

  an installation to supply machines for

  swimming with rolls of plastic ceramic masses,

  this installation allows a level of automation

  higher savings by simultaneously saving

  process, an adaptation of the moisture of the mass to the article to be respectively shaped by allowing an immediate correction of the moisture of the mass, which reduces the expenditure of energy and manpower, and avoids quality defects

during shaping.

  According to the invention, this problem is solved in that a filtration device constituted

  of one or more cells, functioning on the basis of

  of electro-osmosis, and constituting a part

  of a clocked line of shaping is connected to a

  central slurry tank via a tubular pipe, and a diaphragm pump connected between the tank and this device, while below the filtering device there is provided a mixer which is directly coupled to the press

  under vacuum of a shaping part.

  According to another embodiment of the invention,

  it is expected that a cell of the filter device

  It consists of a median part equipped on both sides with anodes, and which delimits on each of its sides a filtration chamber, while on the

  other sides, the delimitation of these fil-

  tion is ensured by shaped terminal parts

  troughs, electrically nonconductive and

  can be moved laterally, which are each equipped with a cathode and a movable filter cloth, while the middle part is provided with a filling port by the slip which is connected by

  via a channel connected to the two chambers

  filters, and the end pieces are

  of filtrate evacuation channels in the

  lower filtration chambers.

  Thanks to the implementation of the

  osmosis under pressure, the dehydration process is accelerated compared to filtration methods

  classics, so that the quantity of ceramic masses

  plastics needed for a timed production line, can be made with a surface of

reduced filtration.

  It is thus possible to dehydrate the bar.

  botin in an off-center manner on each line of

  Connage. This has the great advantage that the quantity

  moisture content of the required mass can be adapted

  for each article under consideration to the capacity

  bit and the process of shaping the manufacturing line.

  cation. The process steps of press filters, mass transport to vacuum presses, mass stacking on pallets, transport of pallets and mass feeding can be eliminated. In fact, the level

  automation is increased, and we get an eco-friendly

  labor and energy. The

  possibility of adapting the humidity to each

  to be manufactured, is accompanied by a decisive improvement

cisive of the quality.

  It is advantageously provided that the mobile filtration fabrics are guided out of the filtration device by rollers, and are attached to

  winding drums. Thus, the filter cakes

  can be extracted automatically and safely from the open filter device and

  in the blender. Advantageously, the anodes are made

  in the form of electro-carbon plates.

  technical or carbon-containing plates. It has been found that filter cakes are easily detached from electrotechnical carbon. In addition, corrosion and wear are extremely reduced

  when, during the implementation of the

  electro-osmosis under pressure, electro-carbon

  technical as anode material.

  The invention will be described in more detail below with the aid of an exemplary embodiment. On the attached drawings:

  FIG. 1 is a diagrammatic representation

  overall diagram of the device according to the invention, - Figure 2 shows in section a device

filtration.

  A central slurry tank 1 is

  related to the different filtration devices 4 by

  through a diaphragm pump 2 and channel

  3. Below the filtration devices 4 are the mixers 5 with the vacuum presses 6, the separator 7 and the mass mixer 8 for feeding the forming part 9 of a clocked line of 10. A cell of

  filtration devices 4 consists of a

  median tie 12 equipped on both sides of anodes 11, and two end pieces 13 in the form of troughs, which delimit with the median portion 12, the chambers of

filtration 14.

  In the lower part of the media room

  12, is the filling orifice 15 by the slip which opens through a connecting channel 16 in

  filtration chambers 14. In the final rooms

  13 are arranged the channels 17 for discharging the filtrate. These end pieces 13 are made in one

  - insulating material, and on them are arranged the

  18. Between the middle part 12 and the parts

  13, are stretched filter fabrics 19.

  These filtering fabrics 19 are guided out of the device

  of filtration 4 above and below, by means of

  20 and they are attached to winding drums.

  21. On the end pieces 13 are articulated

actuating cylinders 22.

  The operating mode of the installation is as follows:

  The diaphragm pump 2 pumps into the reservoir

  see slip 1 the slip through the tubular pipes -3, to send it in filtration devices 4, so that the filtration chambers 14 are filled with slip,

  and put under pressure. At the same time, a tension

  tinue is connected to the anode 11 and the cathode 18 and thus causes dehydration of the slip by electro-osmosis under pressure. The filtrate is then discharged via the filtrate outlet channels 17. When the dehydration has been carried out,

  the valve 23 is closed, the DC voltage is

  and by means of the actuating cylinders 22, the

  terminal parts 13 are distant from the middle part

  12, so that the filter cakes are released

  res for evacuation. When the terminal parts

  13 apart, the filter cakes remain adhered to

  filter tissues 19. Next, these tissues

  19 are wound on the drums of

  rolling 21 lower, thanks to which the filter cakes are moved down with the fabrics

  19, are detached on the lower rollers

  20 empty tissues 19 are then returned to their starting position by means of the upper winding drums 21 and the filtration device is again closed by

actuating cylinders 22.

  After the opening of the valve 23, the process

  The next filtration is initiated, so that a permanent feed of masses into the mixer 5

is guaranteed.

  In the mixer 5, the mass is homogenous

  seized and then brought to the vacuum press 6.

  As it is planned for each part 9 of

  forming a filter device 4 and a mixer

  5 distinct, the desired moisture for the mass

  can be set individually. It is thus possible

  when there are defects in quality,

  immediately correct the moisture of the mass.

Claims (4)

  1.- Installation for feeding shaping machines with rolls of plastic ceramic masses, installation characterized in that a filtration device (4) consisting of one or more   cells, operating on the principle of electro-   osmosis, and constituting a part of a shaped forming line (10) is connected to a central slip tank (1) via a tubular pipe (3) and a connected diaphragm pump (2)   between the reservoir and this device, while   under the filtering device (4) is provided   a mixer (5) which is directly coupled to the pres-   evacuating (6) a forming part (9).   2.- Installation according to claim i in that a cell of the filtration device (4) is constituted by a median portion (12) equipped with both sides of anodes (11), and which delimits on each of its sides a filtration chamber (14), while   on the other sides, the delimitation of these rooms   filtering cups (14) is provided by end pieces (13) in the form of troughs, which are non-conductive   electrically and able to be moved laterally   typically each equipped with a cathode (18) and a movable filter cloth (19), while in the   middle portion (12) there is provided a filling aperture   pleating by the slip (15) which is connected by   via a connecting channel (16) to both.   filter chambers (14) and end pieces (-13) are provided with filtrate outlet channels   (17) in the lower part of the filter chambers tion (14).   3.- Installation according to claim 2,   characterized in that the mobile filtration tissues   the (19) are guided up and down out 26Z8026   of the filtering device (4) by rollers (20)   and are attached to winding drums (21).   4.- Installation according to any of the   claims 1 and 2, characterized in that the ano-   (11) consist of electro-technical carbon plates or plates containing carbon. P1 I / 2 Fig. 1 ._-.., 4 5 6 7 8 91'0 - /!, r 1 1 ' P1 II / 2 Fig. 2 21 19 20 12 20 19 21 _I J ^^ '4 13 13 11 14 2 _ 0..2 2