DE1966233U - DEVICE FOR INDEPENDENT DOSING AND MIXING OF SEVERAL LIQUIDS. - Google Patents

Description

Bran & Lübbe, 2 Hamburg 39, Mühlenkamp 59

Device for automatic. Dosing and mixing of several! Liquids.

In various branches of process engineering is common set the task of metering several liquids in a preset ratio and before entering to mix intimately in a further process step, so as to always have a perfectly homogeneous intermediate product the same composition.

S ¹ Various means are known for solving this problem, including, for example, systems with pre-pressurized storage tanks for the individual components, solenoid valves and a downstream mixing ^{tank 1} with stirring devices, as well as a combination of storage tanks, volume meters, for example rotary piston counters, with contact units and suitable '^ neten control organs as well as downstream mixing and stirring devices. Dosing machines have also found widespread use which are equipped with a number of pump heads corresponding to the number of output components, which are operated by a common drive and the individual liquids - depending on the mixing ratio previously set via the stroke length of the individual dosing pumps - and dispense the stirred tank.

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All of these facilities have the disadvantage of a relative complicated wiring and a line overview, space-consuming arrangement «,

The present inflation concerns one facility for automatic dosing and mixing of two or more liquid components, one with two or more pump heads, preferably leek piston metering pumps, equipped dosing machine 'with suitable mixing devices and one immediately downstream Expansion tank is combined. The above (healing units are mounted on a base frame and result in a extremely compact unit that is also transportable. The new facility is supported by suitable control, Safety and control or switching organs supplemented, the The device also allows fully automatic and practically foolproof operation easy cleaning.

An embodiment of the invention is illustrated by the The attached drawing clarifies this system preferably for the continuous production of lemonade syrup as an intermediate product for packaging and bottling of non-alcoholic soft drinks, but can of course also be used for other drinks and all other dosing and mixing tasks in which two or more liquids are in a certain ratio must be dosed to each other and then mixed without major structural changes.

In the continuous production of lemonade syrup, the following requirements are made:

1.) The various raw materials must be used at all times be measured with great accuracy, with a certain mixing ratio according to the recipe Must be sustained in order to access this

Way to ensure that the end product has a consistent composition and quality ...

2.) Another prerequisite for optimal product quality is a proportioning and mixing of the starting materials As soon as possible before filling in bottles or other containers.

3.) Such levies must be easy to "operate", monitor and to be cleaned.

4.) During the dosing and mixing process, no air must be able to penetrate the liquids.

5.) The buyer of such systems naturally expects cost savings through rationalization effects including personnel cost reductions ο

The new facility meets all of these requirements.

In the example chosen, the starting components are: sugar syrup, lemon syrup, orange base and lemon essence stored in storage containers (2a, Ja, 4a, 5a) while Water is supplied as the fifth starting material via a float pot (1a). The individual "components flow Dosing machine with 5 pump heads (1, 2, 3? -4-, "5) is equipped, which are operated by a common motor (6) via metering pump gear. The individual components are metered in the desired quantity ratio that can be precisely adjusted via the stroke length of the metering pumps and brought together in the mixing section (8), from where the already finished mixture flows into an expansion tank (9), the one with known upper and lower limit contacts for the liquid level, not shown in the drawing is equipped.

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These contacts switch the dispensing machine depending on the Requirement of the filling system depending on the liquid level automatically on and off in the expansion tank. There is a small enough supply of ready-made syrup at all times for loading the automatic milking machines available =

As shown in detail at the pump head (1), each pump head has a suction air chamber (1b) and one therein built-in conductivity limit switch (1c) as product deficiency protection, which means that incorrect dosages are ruled out. This fuse triggers when a The storage container is emptied. The machine is then automatically switched off at the moment and can only restart when the reservoir has been refilled.

There is also a sniffer valve on each of the suction air tanks (1b) (1d) arranged as a vacuum breaker.

The dosing machine with all accessories including the expansion tank is in a compact design on one Base frame (7) mounted.

In addition to setting the mixing ratio by preselecting or adjusting the piston stroke lengths of the individual No operation is required for the pump heads. The facility works fully automatically in cooperation with the downstream filling system.

A great advantage of the new facility is its versatility, based on the above-mentioned starting components, for example, clear lemonade, cloudy orange lemonade or orange fruit juice can be produced.

The setting of the mixing ratio cannot only by hand on the machine, but using a suitable one

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Actuators (actuators, actuating cylinders) can also be operated manually from a remote control room, but also with automatic control, "for example via Information carriers such as punched strips or punch cards for the various possible eeζeptures.

The consistently implemented modular system enables the construction of such dosing and mixing systems of all kinds and size from standardized assemblies «Such systems can also be installed later on without additional space requirements and can be enlarged without any difficulty by adding additional pump heads.

Protection claims

Claims (4)

Protection claims 1. Device for automatic dosing and mixing several liquids, characterized in that one is equipped with two or more pump heads (1-5) Liquid metering machine driven by a common motor (6), a mixing section (8), an expansion tank (9) and the associated safety, monitoring and control devices (1a, 1c, Id etc.) are combined in a compact unit. 2. Device according to claim 1, characterized in that the liquid metering machine with üauchkolbendosierpumpen (1-5) is equipped, their delivery quantities to determine the composition of the product adjustable by hand via the piston stroke length or are adjustable. 3. Device according to claim 1, characterized in that the safety monitoring and control organs for fully automatic operation from upper and lower limit value contacts, float holders (1a) for the liquid level as well as conductivity limit switches (1c) exist as product defect safeguards. 4. Device according to claim 1, characterized in that that the mixing ratio over the EolberJaublengths the individual pump heads on the way. steepness can be adjusted from a control room. ~ - 2 - 5 «. Establishment according to. Claim 1, characterized in that that the mixing ratio can be adjusted by means of an automatic control.