DE102004002626A1 - Libra - Google Patents

Abstract

The invention relates to a balance, which is designed as a movable scale in mills, silos or the like. The balance is a SWA / SWT balance (1, 4) in the form of a pipe scale, wherein at least the weighing container (13) is movably suspended.

Description

The The invention relates to a movably arranged SWA / SWT balance, in particular in silo facilities, mills or similar.

scales are generally stationary installed to motion-induced errors to minimize the measurement result. However, this requires that the balance not only in product promotion is integrated, but that usually an additional funding costs arises and / or several scales must be installed.

Out EP-A-0039097 also discloses a scale with a large weighing container, the arranged on rails above a silo arrangement movable is. The product infeed is followed by a screening device containing the Product must pass to then fall into the weighing container.

at another movable scale according to EP-A-0794476, which also can be moved on rails, with multiple component container with adjustable outlet are provided. Below this component container is a large collection and weighing container arranged. Above the big weighing container is a smaller weighing container provided, the analog linear to the large weighing container is arranged movable. Both weighing containers are under the, in series arranged component containers method.

moveable Scales according to the prior art have a very large height and are sufficient Reason of the open construction today sanitation requirements only conditionally. The weighing accuracy is too low especially for small components.

Of the Invention is therefore an object of the invention to provide a scale, which is movable and with the disadvantages of the prior art avoidable are. The object is solved with the features of the claim. advantageous Embodiments are disclosed in the subclaims.

Intended is a scale attached to a carrier or the like is hung linearly movable. The balance is one Libra to the automatic weigh respectively. Totalize (SWA / SWT balance).

The Product dosing is carried out in the weighing container by means of a metering element, advantageously by a metering slide. Below the weighing container and can be coupled to this at least one sump, for example, with lock discharge or provided pneumatic discharge.

On The reason for the balance electronics is also a safe product tracking possible.

With Such a scale arrangement, it is possible with a movable Libra a variety of silos or component containers too operate and handle product batches flexibly, for example in feed or rice mills. They are high weighing and Dosing accuracy achievable.

The Invention is hereinafter in an embodiment with reference to a Drawing described in more detail. In the drawing show the

1 : a schematic representation of a movable scale

2 : a movable scale with pneumatic product conveying

3 a side view of the representation according to 2 ,

In a rice mill, movable scales are used in the brown rice silo, in the white rice silo and in the finished product silo. Their use is explained using the example of the storage of white rice. Polished rice arrives in intermediate depots 2 and from there into a movable scale 1 (SWA / SWT balance) in the design of a pipe scale, where desired batch or batch quantities of individual products (differently polished or ground rice) are weighed. The weighed quantities enter the silos 3 and can be recalled from there with complete product traceability. On request, batches of specific characteristics from the silos 3 in another, the silos 3 downstream movable scale 4 (SWA / SWT balance) are weighed and this batch passes through an intermediate depot 5 on a, not shown color grading machine.

each weighed batch is recorded and all values are displayed in the scale or mill control stored.

The scales 1 . 4 are on rails 10 on rollers 11 stored suspended. The roles 11 are with a high-speed drive 12 provided, which allows a high travel speed with high positioning accuracy. The actual weighing container 13 is suspended or supported in the usual way on bending bars or the like, which ensures a high weighing accuracy with gravimetric dosing.

Product dosing is free-flowing or supported by a discharge aid from the intermediate depot 2 respectively. silo 3 via a tightly coupled dosing into the weighing container 13 , After weighing, the rice enters a tightly coupled outlet container 15 , from where the batch by means of conveying air of a transmitter pneumatics in the pipe string 16 a color sorting machine is supplied.

scales 1 . 4 are disclosed, for example, in EP-B-256222, EP-B-217895 or EP-B-466857.

basics Advantages of such an arrangement are that defined Batches resp. Transfer batches of rice to the next processing stage can be. Contamination with other products is avoided and rice processing can still be done with high flexibility and high accuracy. The pneumatic transport is also compared to mechanical advancement the rice break minimizes.

The Invention is not limited to this embodiment.

1

Libra

2

escrow

3

silo

4

Libra

5

escrow

10

runner

11

role

12

drive

13

weighing

15

leaking containers

16

tubing

Claims (5)

Scale, which is arranged movably in mills, silo installations or the like, wherein at least one weighing container of the balance is suspended or supported on weighing elements, characterized in that the balance is a SWA / SWT balance ( 1 . 4 ). Scales according to claim 1, characterized in that at least the weighing container ( 13 ) is suspended movable. Balance according to claim 1 or 2, characterized that they provide with a pneumatic discharge of the product to be weighed is provided. Balance according to at least one of claims 1 to 3, characterized in that it is designed as a pipe scale. Use of a SWA / SWT balance ( 1 . 4 ) as a movable scale in mills, silos or the like.