DE1924081A1 - Processing device for chemical ingredients - Google Patents

Description

PATENT LAWYERS

dr. ing. Π. NO THANKS · dipl.-ing. H. HAUCK · difl.-fhys. W. SCHMITZ

HAMBURG-MUNICH ZPSTELUJNGSANSCHRIFT: HAMBURG 36 · NED E HWALL 11

TBI-. 3β 74 28 AND 36 41 15

TELE ( IK.NEGEDAPATENT HAMBCHG

BORG-WARMEH CORPORATION Munich ia · mozartstr. 23

200 South Michigan Avenue ^m " ⁸ ' ^88e . -

TEI ₁ BQR. NEQBDAPATBNT MUNICH GHICAGO, Illinois 60604 (USA)

, May 9, 1969

Chemical ingredient processing device

The invention relates to a device in which chemical ingredients are processed by are mixed together before the resulting mixture is poured or fed to another deformation process is, and in particular to the part of such a device in which the control of the processing and the Mixing process of the chemical ingredients itself takes place, with such a device of course also storage container and means for circulating the chemical ingredients. The invention is e.g. B. with all the Techniques dealing with the manufacture of articles from polyurethane polymers are very useful. Devices of the type just generally described for

chemical mixing are available in the market and are now in the manufacture of polyurethane products

used. In such devices, the chemical ingredients are allowed to circulate through the system if they are not

909848/1011

■■■■■■■ ■ '■ - - 2 -

ÖAD ORIGINAL

Mixing head are fed, where aas tables takes place. The purpose of this circulation is that that. System kept in such operational readiness is that the MZiüüiiiägXaiöi chemicals without complying a "warm-up" time before the Liischkopf is operated can be fed to this. When the mixing chamber is to be put into use as desired, valve means must change the operating mode from the circulating mode of operation to the supply or dispensing mode of operation switch over while the chemicals are being mixed in the kischkammer, the system has to switch back in the meantime be converted to the circulation mode. In the.

Use of the known devices often arise problems that z. B. relate to the unreliability of the operation of these devices by e.g. B. an unusable mixture arises and this must be drained at the end or at the beginning or at both times of a mixing process. An unusable mixture can e.g. B. always arise when all chemical ingredients, after the inflow to fill up the mixing chamber has been released, do not immediately start to flow at their optimal inflow rate, or if, in the same way, the inflow of the ingredients does not stop immediately after the inflow blocking command * In addition can the * known devices often not reliably a ^Ci: Leakage of the chemical components and their mixture "

909848/1011 - 3 -

BATH ORIGINAL

at any point other than in the mixing head.

Such unplanned mixing can be great in the overall system

prevent this from causing damage. It is difficult / given such machines usually operated for a considerable amount of time, during which a number of cyclical changes from the Feeding operation to the circulation operation and vice versa. Necessarily join the Sealants under these circumstances severe wear and tear

ung
appear on. The use of the devices belonging to the prior art is also undesirable for another reason, because some of the heat generated by various parts during operation of the machine can reach the mixing chamber and interfere with the regulation of the temperature in the mixing chamber; this is particularly harmful because precise control of the temperature is absolutely necessary for the operation of the mixing head, since even the smallest temperature fluctuations can have disproportionately serious poles. In addition, when using prior art devices, there is a tendency for these devices to take in an excessive amount of air during the mixing cycle, so that undesirable air bubbles are sometimes found in the cast products as a result of the air being rejected by the mixture will. In the known devices used for the purpose described, only a step-shaped control was possible,

909848/1011 " ⁴ "

. to control the flow of chemicals into the mixing chamber control, and the precise overall regulation of the inflow of materials, which only with a constantly changing Control device is possible, was beyond the capabilities of such devices.

It is the object of the invention to provide a device for Use when mixing chemical ingredients to provide precise control of the feed and the Temperature is possible for successful operation such a device is necessary. A device for the constant change of the inflow opening width for chemical supply is shown in an embodiment with the task of leakage prevention is tolerable. The influences of scattering temperatures are controlled by the sensitive mixing chamber kept away and air entrapment in the mixture is prevented if so desired. Of the utmost importance in solving the object of the invention is the novel

Valve, with the help of which the system changes from the state in to which the chemicals are fed to the mixing chamber, can be converted into the working state of circulation. By means of the new type of valve provided here, all chemical ingredients can be admitted at the same time to be started; the possibility of leakage losses and 'unplanned mixing of chemicals are avoided' In addition, another feature of the invention is that

90ÖÖ48 / 1011

when switching from one state to the other means are provided by means of which the valve openings can be flushed with a solvent or airj this puts the mixing head in a standby state for Maintained error-free operation when the supply of chemical ingredients from the inlet mode to the Circulation mode is switched.

How the stated goals of the invention, but also others, are achieved is shown when considering the attached Drawings clearly. Show it:

Fig. 1 is a plan view of the mixing head arrangement

Pig. Figure 2 is a section along line 2-2 of Pig. 1 to illustrate the internal structure of Mixing head arrangement

Pig. 3 is a section along line 3-3 in Pig. 2;

Pig. Figure 4 is a section along line 4-4 in Pig. 3 |

Pig. 5 is a section along line 5-5 in Pig. 2;

Pig. 6 is a section along line 6-6 in Pig. 5y

Pig. 7 is an enlarged view of part of FIG

909848/1011

■■ :: ■. ■■■.,. - 6 -

Mixing head shown in Fig. 2 and with the bracket A is indicated;

Fig. 8 is a side view of the base plate, which in this figure without the remaining components of the entire Mixing head assembly is shown, the direction of view being indicated by line 8-8 in FIG Figo 1 is indicated}

Figure 9 is a top plan view of the base plate of Figure 8j

Fig. 10 is a section taken on line 10-10 in Fig. 8;

Fig. 11 is a section taken on line 11-11 in Fig. 8;

Figure 12 is a section taken on line 12-12 in Figure 8;

Fig. 13 is a plan view of a flat surface of a portion of the orifice plate separated from the The arrangement of Figures 2 and 7 is shown;

FIG. H is a plan view of the other flat surface of the portion of the orifice plate shown in FIG will be shown;

FIG. 15 is a sectional view of that shown in FIG Orifice plate along line 15-15 of the

9098487.-1 01 T

Mg. 2;

16 shows a plan view of the seal shown in FIG. 13 with the arrangement of the openings in FIG Orifice plate, which is placed on the seal and drawn in dashed lines, for Representation of the case in which the orifice plate is in the inflow position over the seal;

Fig. 17 is a plan view of the seal which corresponds to the plan view in Fig. 16 except that in In this case, the orifice plate is arranged over the seal that the arrangement is in circulation mode; and

18 shows a longitudinal section through an admission opening the line 18-18 in FIG. 10.

The arrangement shown as a whole in FIGS. 1 and 2 can be referred to as a mixing head 10. In the motor housing 11 a motor of known type is arranged, which corresponds to the position of the shift lever on a control panel 11a is working. The motor rotates a shaft 12 to which a ring gear 13 is attached. The ring gear 13 is made of a suitable one Material worked with a low thermal conductivity, so that no heat is conducted from the motor to the mixing chamber can that is described below? thereby can

9098 40/1011

the temperature conditions in such a mixing chamber can be set precisely.

The main drive shaft 14 of the mixing head 10 ends in

with
a pinion 15, the teeth of which mesh with those of the ring gear 13, so that when the ring gear 13 rotates, the pinion 15 and the main drive shaft 14 rotate.

A hub portion of the ring gear 13 runs in Belt 17, whereby drive means for a tachometer for controlling the operation of the mixing head are present are.

The task of the main drive shaft 14 is to provide a rotating force for a bucket 22. Die Blade 22 is arranged in the blade housing or the mixing chamber 23. V / how best to get out of the Pig. 2 see can, the blade 22 is provided with spiral ribs 24 in the outer wall, the kneading of the chemical Serving components which are introduced into the mixing chamber 23 through valve and opening means, the will be described in more detail later.

When the blade 22 is rotated, such chemical Ingredients mixed and processed together and

909848/1011 - 9 -

finally pushed out of the mixing head through the opening 25, because the spiral ribs have a downward slope. The removable nozzle 26 of a new type is at the outlet of the mixing chamber arranged. The nozzle has an upwardly sloping upper surface 27 and because of this arrangement the mixed and kneaded material after reaching the bottom of the paddle move up and in Towards the center of the mixing chamber 23 around the opening 25, from which it is then pushed out «When using a modified shape of the mixing head, modified in that the material mixed in the chamber spreads over the before exiting the mixing head

Surface 27 must move up, the efficiency of the mixer is improved and the incorporation of air in reduces the chemicals mixed as they pass through the mixer. After considering the mixing device and their drive will now be described the valve and opening means that the inflow of Enable and control chemicals in the mixing chamber. There are three separate inlet channels 28, 29 and 30 for Chemicals provided through which three separate chemicals can be added to the mixing chamber, these channels being formed in the orifice plate 31 are. Of course, those shown in Figures 9 to 12 and characterized by the edge surfaces of the base

909846 / 1Ö11 - 10 -

IS! 4OSi

-ICf-

plate 51 extending channels on söicheä stoppeit. The channels are about three with sloping ^; threaded inlet ports 28a, 29a and 50a accessible. Because the drawings have become considerably more complicated and it is not necessary to an understanding of the invention, the means for supplying chemicals to channels 28, 29 and 50 are not specifically shown, although it will of course be understood that such means are pumps and tubes exist, which exist between the corresponding openings 28a, 29a and 50a and / a corresponding storage container for the chemical to be fed, the pipelines being fastened to each of the screw-threaded openings 28a, 29a and 50a by means of suitable rewinding fittings, which because of the usual Design are not shown.

Each of the inlet channels 28, 29 and 50 in the base plate 51 has a corresponding second channel 52, 55 and 54 » each of the latter being used whenever there is a leak of chemicals from the mixing head is not desired, but rather the chemical constituents should circulate in the system as desired; the channels 52, 55 and 54 are therefore referred to as circulation channels. Again, the channels 52, 55 and 54 are of course blocked on the edge surfaces of the base plate 51 and with a corresponding screw thread

90984 8/1011

BATH ORIGINAL

Outlet openings 32a, 33a and 34a accessible. In addition, conventional pipes (not shown) are attached to the openings 32a, 33a and 34a by means of screw fittings
serve to return the chemicals from the channels 32, 33 and 34 to the storage containers for the corresponding chemicals.

The base plate 31 of the mixing head arrangement is arranged horizontally, and the inlet channels 28, 29 and 30 and also the circulation channels 32, 33 and 34 are in the base plate
drilled horizontally so that when placed horizontally
the base plate 31, the channels also extend in the horizontal direction. The base plate 31 is also drilled through in the vertical direction, so that the ends of each channel just mentioned are connected to the top of the base plate 31. Thus, the channels 28, 29 and 30 for the inlet of the chemicals end in vertically extending holes 38, 39 and 40. (Compare iig. 8 and 9). Similarly, the holes 41, 42 and 43 connect the top of the base plate 31 to the ends of the circulation channels 32, 33 and 34.

A closer inspection of FIG. 9 shows that the inlet channels and the circulation channels for the chemicals
can be combined in pairs, the pairs from channels 28 and 32, 29 and 33 and 30 and 34 being

9 0 9 Ö Λ a / 1 01 1 "" ¹² "

. stand. Each of these pairs has a hole that extends all the way through the base plate 31 from the top

Underside extends, and each of these holes is one Orifice, the corresponding orifices with the reference numerals 47 »48 and 49 are provided. In the following the term "opening" is used both as a label for the holes as well as for the orifices used.

In addition to the inlet and circulation ducts in the ground
Plate 31 is a different system of channels which have been drilled in the base plate 31 at a different height, as FIGS. 8, 11 and 12 clearly show. This second channel system 50 is intended to carry a solvent or air that is to be introduced into the first system for flushing purposes, as will become clear later. Of course, the solvent or air are alternately admitted into the system 50 depending on the position of a common valve used for this purpose, which is not shown. A branch 50a of the channel system 50 ends in a hole 51 which opens towards the top of the base plate 31 and is located in the immediate vicinity of the orifice 47. A similar opening 52 at the end of the branch channel 50b of the channel system 50 is provided in the vicinity of the orifice 48, while an opening 53 at the end of a branch channel 50c in close proximity to the orifice

909848 / 1G11 - 13 -

opening '49 is planned. There is also an inlet port . 54 is provided, which connects the top of the base plate 31 • with the channel system 50 and through which the solution · medium or air can be introduced. While the special Means for supplying the solvent or air to the inlet port 54 are not shown it is understandable that these means consist of conventional tubes and known fittings that are used for fastening of the tubes at the opening are necessary, and valve devices of the known type, which are necessary for the inlet of Solvent or air can be drawn into the opening.

In addition to the metering openings 47, 48, 49, which extend in the vertical direction through the base plate 31, a fourth opening 59 is provided, which likewise corresponds to this description. Through this opening 59, air for core formation can be admitted into the mixing chamber 23 at the same time that chemicals are admitted into the mixing chamber through the orifices 47, 48 and 49 · Sin duct 60 with an inlet opening 61 which communicates with the top of the The base plate 31 has a flange hole 62 which connects the channel 60 for core formation to another channel 63 at a different height in the base plate 31, the channel 63 ending in an opening 64 which opens towards the Upper

900841/1 old -14-

side of the base plate 31 opens. The hole 64 is in close proximity to the opening 59. In addition, a branch channel ends 50d of the channel system 50 in an opening 65 which is close to the opening 59 and the hole 64.

A "! Teflon" seal 70 is glued to the top of the base plate 31 using suitable adhesives 70a. the Gasket 70 is provided with holes that correspond to the corresponding holes and openings in the base plate 31, as they have just been described. No separate reference symbols are used for the openings in the seal 70 but the openings in the sealing washer are denoted by the same reference numerals as the openings and holes in the base plate 31 «The top surface of the" Teflon "gasket 70 faces the Orifice plate 71 out.

The opening plate 71, which is preferably made of corrosion-free Steel is made, provides the valve means by means of which the flow of the chemicals, the solvent and the air through the various flow channels described so far can. The opening plate 71 can occupy two different stables. In the first position there is one revolution of chemicals reached through the system, and an air and / or solvent purge stream can flow through the orifices

- 15 V

47 »48 and 49 and through the opening 59 are passed. When the orifice plate 71 is in its other position is located, the chemicals are through the inflow openings 47, 48 and 49 let into the mixing chamber 23, and air for core formation can also enter the through the opening 59 Mixing chamber can be let in. The following discussion will begin with the relationship between the openings in the "Teflon" seal 70 and the orifice plate 71, then the structure of the orifice plate 71 and finally it is shown how the orifice plate 71 controls the orientation of the chemical flows in one of the causes both ways of working.

To facilitate the discussion, the various openings in the base plate 70 and thus in the "Teflon" seal 70 are divided into different groups and assigned to the openings in the opening plate 71. In this way, openings 38, 41, 47 and 51 in ¹¹ Teflon "seal 70 can be grouped 1, openings 39, 42, and 52 as group 2, openings 40, 43, 49 and 53 as group 3 and the openings 59, 64, 65 are referred to as group 4. The orifice plate 71 has openings which are in some relationship to those in the "Teflon" gasket 70 and which can also be divided into groups, the corresponding relationship between the opening groups in the orifice plate 71 and the groups in the gasket 70 by prime numbers

909848 / 1Q1 1

BATH ORIGINAL

Is marked with digits. Therefore, the group T · on the orifice plate consists of the openings 38a, 38b, 47a, 47b and 51a, the group 2 'consists of the openings 39a, 39b, / 48a, 48b and 52a, the group 3' consists of the openings 40a, 40b , 49a, 49b and 53ä and the group 4 · of the openings 59a, 59b, 64a and 65a. The openings in each of the groups on the orifice plate are sub-grouped by a pair of kidney-shaped grooves. In group 1 ^r the grooves are denoted by 72 and 73, in group 2 ¹ by 74 and 75, in group ^ ¹ by 76 and 77, and in group 4 ^{f there} is only a single groove 78.

A "quad ring" is inserted into each of the grooves 72 to 78 (an endless band of resilient material, whose Cross-section is approximately square), the quad rings all having the reference number 79. Any quad ring serves to seal the openings it encloses and the other openings in seal 70 and in the Orifice plate 71 so that leakage will not occur anywhere can where this is not permitted. EtLe materials, from which the opposing surfaces of the seal and the orifice plate 71 play an important role Role for the effective seal against j & efer losses by means of the quad rings. The coefficient of friction of the quad rings relative to the material of the orifice plate must be greater than the coefficient of friction relative to that

9 0984 8/1011 - 17 -

, Iff ,.
his B £ eke nictit gleiefesiaMg .iiber # i & tot

UEfe

on »entente toi distributed aondera äaiiu & $ £ $$». on; © pie :. page

Tt «ja 4 ¥ OÄ« feflon ^ $ ίϊτ 4ia BieÄtu ^ g,? Ö iless materials

these ,

The opening plate Ti. Taestelit au # - awei file :, eiaea feil 71a, dtarck which the ö ^ fsuagea ge "botot wiJ? D and. In the bottom of which the channels are laid out (compare Sig" t3 "ad 14) * and one egg andurcnliototeii iCeil 7tti, the * s0liließen to ¥ ei of channels used, so that these under the Ofeeriläaiie the -....! YerMndeii run orifice plate Xq of Yerkundöffnungsplatte 71 ,, you nacii deia sietieren the ropes 71a and 71 "b together are they in group? * the openings 47a and 3a through a sana lying below the surface! 85 runs, while a channel 84 connects the openings 38a and 58b, a channel running under the surface 85 connects the Sooner 4 ^ b and 51a., Xn group.2 * builds in. Channel 88 a connection between the openings 33a and 48a beneath the surface, resting: a channel 89, ...-. in the same way the, openings. 3Sa and 39b * and a channel: 9Ό connects the openings, 48b and 52a miteiaandea *. --- ..

In Group 3}: connecting a untejr & ft * $ ^ QbeEfläen channel 93 AEIE openings 40a and 49a 'wänrena a channel 94

BATH ORIGINAL

Openings 4Qa veaiäL 4Gb and eis Canal 95 the openings mad 53a ^ teiiiasoeK ^ inKrliiiidet ^. SIn J22i *, ei? äea *

9S Teriaiifeiiäei * - \ Eaitail TsaÄtEöeii 4ie öffiasm ^ eaa 59a in. Sanif ^ «# ** aaf äluaiiöfea ®e; ise seMIieSt äer JE ^ ial VQQ the public a S9% oaui S5a.

_; asf the lig * 2 uiad 15, where £ ie ls * zt € a? e as; .. "diircii you .ii.g * 2 öargest ^ ilt is, am..die Jtocj ^ ämuag,

latte in dent iüseüisjfKf to a "fzazreigem" ^ jcd clear "that the opening gap plate It in direct. J-laugh—. _T fcoatakt with the biciitang 70 and arranged essentially in the upper part of the vessel T04 . vqxl this surrounds. · - is (the Öifnangaplatte 71 is shown in the sig. 15 onne Oberfläciienenteileiten because the purpose of the J ¹ Ig., T5.;. ■ ", ._. the representation of the relationship of the orifice plate 71 in their two Positions with respect to the mixing head). The main shaft 14 passes through the center of the orifice plate Jl therethrough and is surrounded by a bearing sleeve 1Q5 "A

106 of a thrust bearing lies on the basis of £ .deäc

since © the orifice plate 71 on * and the thrust bearing, ü & t ■ -. a downward force on the smooth opening; .- .. -. 71 from "because the upper side of the upper race 107 of the thrust bearing ^ a peder t08 a pressure_ from0ib.t * where the run-up ring sirifitr seita in direct contact with aen. _? - ■ rollers 1Ö9 of the directional bearing are stationary «. The ^ roles: tO9; to run; on the surface of the thrust bearing plate 106 »,. ".-. -

BATH ORIGINAL

With particular reference to Figure 15, it becomes It is clear that the orifice plate 71 is provided with a slot 113 is provided and these slots 113 a 'bottom surface 114 having. A lever 115 is on the bottom surface 114 of the Slot 113 and thus attached to the opening plate 71. The handle 115 is not what is commonly used Aid for changing the position of the opening plate 71, but only serves as a handle in emergencies. Normally the position of the orifice plate is changed by an arm 116 driven by a hydraulic piston-cylinder drive 117 can be actuated. The hydraulic piston-cylinder drive 117 is controlled by conventional, not shown actuating magnets, these by on the Control panel 11a arranged switch with exciter current

can be supplied. When the orifice plate 71 is in the Pig. 15 is the position shown by uninterrupted lines, the opening plate is in the feed position, that is, the chemicals are admitted into the mixing chamber 23. The other position (shown in dashed lines) of the orifice plate 71 is reached when the arm 116 is moved in the ^{direction of the arrow marked with the word "Circulation 11.} When the orifice plate 71 reaches the rest position after such a movement, the flow of chemicals into the mixing chamber ceases and the chemicals circulate through the system and a solvent is available to flush the openings in the

309848 / tG «- - 20 -

BATH ORIGINAL

awx: TerXB & arog ,,. ale · Eonfler ^ "EcrglUcSiSiffil; ksrra a

dMrntigeOfflbrt. «Exnlexu. St fir. «Ftter ^η 3! ΒΟσπ * ^ 4ϊ1« ΜϊππΒ- and 'dwr

- <& $ &'■ piece JSt. «Err · ZTilawiCörtBEünag- TJeiEtoäet, - WiTu ^- . in. the v VB ea'zeiigi '... * mr. MfcnlAoiie W «± ae- we * ist dar Elg» 17 düser · Be-sBiieäaTOOg- awiisciiBnr dew. öirsErClÄciiBn. ΐ »βίΒί» ΟΓ ± βΙτΒΤΓ ,. wemr s ± .B * t. ctäje- ÖJC! CiiMngepl «itrte iaa. dtear Utalaairst ^ lliBas' is located. · You 'Kig .. HS: aioeJä .. · υ »T & g ,. 1T β ± η €

ni », dt ± w zelgssn ^, nrl« you Teatrircliietlierrani. ± n. iecterr «B3J Τ3.« Μαπ. BiögUicJieii SüaHsrngiffll · der Öf 71 mite ± nHauieir vtrrbojiäan. e ± nd * Di "Etcaftl" and ÖJTItraiigtra, Ai "in dbm: KLg ^- ., T ^! 6 to *. 17 with darahgeüemden Idmien äargeatelXt fllBdV. are those that appear in the ¹ TeUOn "poem 70 and ftoKfife- las:« tar 5 * tmiI & I «fcte: Jt auBgwMIdwt eladt di * WBtSb lämölaas: in. « Itkb · öfSnamgeylacfct * 71 «dnd ndrfc

# βπα Si ^ tJJl ftler

jar. XXgv lifr gsaEEÄigt ,, ttaäEairnSSe-tf ,, eteht j, «dt« H ffer

κϋί · «Iswnr der

3H, ₍ ^ ^- an * ^ - iUr dia ChemUcelien ^ waliel

Vtoxfeltedänxg: "StarcÄ, Ci * E" aÄI "uist" r Λ * τ OttvxrfXäot "Ave

_T BB and

Di "SinleMITauÄgc 6 * st" ht TOS "r the channel 99 en1r" rd "r Oberfljftche the üfarnangeplatt" in Texbindung ■ 1t d "r dStnvms 59 ·" in "Üelrt ,. The openings 38b, 39b

- 21 -

COPY
_BA D ORIGINAL

and 40b in the orifice plate, as well as the circulation openings ^ 41, 42 and 43 are not used., In this. Position .._ _> . _i .y _{i of} the orifice plate 71 are on. similarly the opening ^, 65 in the "Teflon" - ^ seal. 70: and the openings 59b and 65a in the opening plate 71 unused ·, ^ ,. _: .; ■ .,,

If the opening plate : ·. in 'the wi , shown in iigv 17. s ^; Is circulated, the openings 47a * y * .48a and 49a in the opening plate are not used, while all other openings in the "Teflon" seal in groups: 1, 2 and 3 are used. In group 4 of the. For openings in the "Teflon" seal, opening 64 is not used, while openings 59a and 64a in the orifice plate are also not used. . <:: ■■ ¹ ^ '

One can see, and it is very important to point out-

indicate that neither in the run-in nor in the circumferential position of the opening plate, nor during the movement aua or in one of the positions, any of the openings either in the "Teflon" -Diohtung "or in the opening plate are never outside of the grooves 72 to 78 limited ~ areas moved, with quad slots being introduced into the grooves. This means that upon the occurrence of a leak from any of these openings the leakage losses AUOH to a "from"'limited such grooves enclosed area and never via fine carried out such limit will be ¹ ^

9Ö9aA8 / 1011 ^ -22- COPY

BATH

an opening should move beyond a quad fiing.

So far we have only generally referred to the orifices 47 »4b and 49 in connection with the supply of Chemicals to the mixing chamber 23 referred to. The fig.

shows one orifice in more detail as an example, for all others. Such metering openings consist of openings guided through the base plate 31 and provided with screw threads. The opening is divided into an upper part 121 of larger diameter and a lower part 122 of smaller diameter. In the Zmaefi · _., Opening a needle valve 123 is provided, which consists of a needle valve head 124 and a tapering part.

It can be seen that the needle valve head 124 is rectangular and is not circular in shape, and is therefore on either side of such a head after being screwed in an opening remains free in the larger diameter part 121 of the orifice, so that a Chemical on either side of such a head can enter and through the orifice can reach the mixing chamber. The inflow rate of the. Chemical through the orifice is made by interacting of the needle valve 123 and a "Teflon" sleeve, which is screwed into the orifice from below will. Depending on the position of the "Teflon"

9.0 * 9 * 8-i JgJ) I v. -23-

~ ~ BAD ORIGINAL

i ^

BAD OWGiNAL

Claims (1)

Claims Processing device for chemical ingredients with at least one device for circulating a chemical ingredient and a chemical processing chamber, characterized by a base or closure plate (31) which closes one end of the processing chamber (23) and one with openings (38, 39, 40, 41, 42, 43, '47, 48, 49) provided with flat surface, said in the plate the openings means (28, 32, 29, 33, 30, 34, 126) / for the passage of chemicals close through a rotatable orifice plate (71) which is a flat surface formed opposite the flat surface of the closure plate (31) and has openings (38a, 38b, 47a, 39a, 39b, 48a, 40a, 40b, 49a) which close the passage channels (83, 84, 88, 89, 93, 94) formed in the opening plate (71) below its surface in order to selectively connect the openings in the closure plate (31) so that the chemical ingredients are either directed into the processing chamber (23) or the circulation device, through self-contained grooves (72 to 78) on one of the flat surfaces, with the grooves Enclose at least one of the openings present in the surface in question by means of closed ones resilient band means (79) in the self-contained grooves (72 to 78), whereby an undesirable leakage loss chemical ingredients between the openings in the basic 909848/1011 - 25 - or closure plate (31) can be avoided. - 2. Device according to claim 1, characterized in that the openings in the flat surface of the closure plate (31) include a first opening (38 $ 39; 40) which terminates an inflow channel (28; 29-30), a second Opening (41; 42 $ 43) which has a circulation channel (32; 33; 34), and a third opening (47; 48; 49), the inlet means into the processing chamber (23) decides, and that a pair (38a, 38b; 39a, 39b; 40a, 40b) of the openings in the flat surface of the orifice plate (71) the ends of one under the. Surface of the orifice plate (71) extending channel. (84; 89; 94) decides to connect the first and second openings when the opening plate (71) is in the Position for feeding chemical ingredients into the circulator, and that another pair (38a, 47a; 39a, 48a; 40a, 49a) of the openings in the flat surface of the closure plate (71) the ends of a channel (83; 88; 93) extending below the surface of the orifice plate for connecting the first and third Openings closes when the orifice plate (71) is in position for the passage of chemical ingredients located in the processing chamber (23). 3. Apparatus according to claim «3%, characterized in that * 909848V1O11 - 26 - the first, second and third openings each have a group (1j2; 3) of openings (38, 41, 47; 39, 42, 48; 40, 43, 49) in the flat surface of the "closing plate (31) and that in the flat surface of the opening plate (71) further openings (47b; 48b; 49b) are provided, and that each pair of opening pairs (3 & a, 38b; 39a, 39b; 40a, 40b) with another pair (47a, 47b; 48a, 48b; 49a, 49b) of the'opening pairs a group of pairs of openings (1'j 2'j 3 ') in the flat surface of the orifice plate (71), there being a plurality of these groups in each of the flat surfaces. 4. Device according to one of claims 1 to 3, characterized in that the openings in the closure plate (31) include fourth openings (51; 52; 53) defining an inlet channel system (50) for a flushing agent, and further openings (51a, 52a, 53a) are provided in the flat surface of the opening plate (71) and that a pair (47b, 51a; 48d, 52a; 49b, 53a) of the openings in the flat surface of the orifice plate (71) the ends a channel (85j 9Oj 95) formed below the surface of the orifice plate (71) for connecting the third (47; 48; 49) and fourth openings (51} 52; 53) decides, when the orifice plate (71) is in a position in which chemical ingredients are introduced into the circulation device. 9098A8 / 101 1 - 27 - BATH ORIGINAL 5. Apparatus according to claim 4-, characterized in that the self-contained ITuts (72 to 77) in the flat surface the orifice plate (71) are formed and a self-contained groove (73; 75; 77) is provided, one of the pairs of openings (40a, 40b} 39a, 39b; 38a, 38b) and another self-contained hat (72; 74; 76) at least one subgroup (47a, 47b, 51a; 48a, 48b; 52a; 49a, 49b, 53a). 6. Apparatus according to claim 5, characterized in that the self-contained groove (73), which encloses one of the pairs of openings (38a, 38b), also the second Opening (41) in the flat surface of the closure plate (31) when the orifice plate (71) is in one of its possible positions. 7. Apparatus according to claim 1 to 6, characterized in that rotatable mixing devices (22) in the processing chamber (23) with drive means (11) for transmission of torsional forces on the mixing devices (22), and that gear means (13) made of plastic material are arranged between the drive means (11) and the processing chamber (23). 8. The device according to claim 7, characterized in that the transmission means (13) made of plastic material for a · 909-848 / 10-11 - 28 - direct rotary drive by the drive means (11) are arranged and a drive shaft (H) is provided is on which a pinion (15) and the mixing device (22) are attached, the gear means (13) from Plastic material are arranged between the drive means (11) and the combustion chamber and with the Pinion (15) is in engagement. 9. Apparatus according to claim 1 to 8, characterized by at least one opening provided with a thread (47-48-49) which passes through the shutter plate (31) and towards the processing chamber (23). opens, a needle valve (123) in the opening which has a substantially rectangular head part (124) and has a tapered body part (123), and through an externally threaded sleeve (126) in the internally threaded opening, whereby an inlet opening into the processing chamber (23) is provided, which is continuously variable in its inlet cross-section. 10. Device according to one of claims 1 to 9, characterized by a rotatable mixing device (22) in the processing chamber (23), an outlet opening (25) from the chamber and an upwardly rising one Area (27) in the vicinity of the outlet opening (25), whereby 809848/1011 " ²⁹ " 192408t the mixed material into an upward one Movement is forced to close the outlet opening (25) prior to exiting the processing chamber (23) reach. 11 .. Device according to claim 1 to 10, characterized by a replaceable nozzle (26), with the top rising surface (27) a part of the interchangeable area Nozzles (26). 12. Apparatus for processing chemical ingredients with a mixing chamber for the chemicals and one Outlet opening for the processed chemicals, characterized in that the inlet into the outlet opening (25) out of the mixing chamber (23) / that of the chemical mixture a change in the direction of movement within the mixing chamber (23) as it passes into the outlet opening (25) imposes. * oVs 4 avtim-