FI56936C - DOSERING APPARATUS FOR FOUND MATERIAL - Google Patents

Description

raSr ^ l ΓβΊ MD ANNOUNCEMENT rra ^ n fäTL LBJ (”) UTLÄGGNINGSSKRIFT Ö & 936 C (45) Patent oyörn-tty 12 05 1930 .ÄÄSy Patent meddelat V T ^ (51) Kv.lk. '/ Int.CI.' B 01 F 15/02 ENGLISH —Fl N LAN D (*) Pittnttlhakcmus - Patantaiufikning 7 ^ 0073 (22) Hakamltpllvi - Anseknlngtdag 11+. 01. 76 (23) Primary cloud —Glltlghtttdaf lU.Ol.76 (41) Become public - Bllvlt offentlig 17.07.76

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_ *. (44) Date of dispatch and of issue of the contract. -

Patent- och registrstyrelsen 'Ansökan utligd och utl.skrifUn publicerad 31.01.80 (32) (33) (31) Requested privilege— Begird priority l6.01.75

Denmark-Danmark (DK) 98/75 (71) Poul Ivan Diness, Springstrup, U300 Holbaek, Denmark-Danmark (DK) (72) Palle Vig Andersen, Regstrup, Denmark-Danmark (DK) (7U) Oy Kolster Ab (5U) ) Dispensing device for granular material - Doseringsapparat för kom-formigt material

The invention tests a dispensing device for granular material, in particular a mixing plant for the production of fodder, which device has a housing with an upper inlet for the granular material, a substantially horizontal disc-shaped member located below this opening, which is considerably larger than the inlet, arranged to remove some of the granular material on the disc-shaped member into a container below and the distance between the inlet tub and the disc-shaped member is adjustable.

For various purposes, e.g. mixing plants for the production of feed, there is a need for a dosing device that can perform relatively accurate dosing and has a relatively large capacity range, so that capacity can be changed from relatively large to very small without cumbersome rearrangement and complicated and very expensive equipment.

Banskala Patent Publication No. 1,146,448 discloses a dispensing device of the type disclosed, in which a disc-shaped member is attached to an upwardly projecting shaft which is fortunately connected to a drive motor so that the disc-like member can be rotated by it. The dispensing device consists of a plate fixed to the body of the device so that it protrudes externally radially towards the axis and that its distance from the axis can be adjusted. The dosing plate has an oblique edge, the direction of which mainly corresponds to the conical material accumulation line formed by the hail material on the cloak-like member, and the dosing takes place in such a way that the dosing plate scrapes off some of the material as the conical material accumulates.

Because the material collection on the disc-like member rotates with it, the components are affected by centrifugal force and therefore tend to be ejected from the disc and the centrifugal force changes with rotation speed and granular material type.

The dispensing device according to the present invention is characterized in that the dispensing member consists of at least one relatively thin, substantially horizontal rod attached to a vertical shaft projecting through a central opening in a disk-shaped disc-shaped member and connected to a drive motor for shaft speed adjustment.

In this mxodo of the dosing device, the material accumulation on the plate takes a shape that depends only on the cellular angle of the material and the distance between the slurry-flow opening and the plate, while the rotational speed of the shaft supporting the dosing rod has no effect on the material accumulation. The rotating rod throws some of the granules out of the material collection and then performs the desired dosing. The amount of particles discarded depends on the rotational speed and therefore the dosing can be adjusted by adjusting the rotational speed. By appropriately adjusting the speed of rotation of the dosing rod and the distances between the dosing rod and the inlet and the plate, a very precise dosing can be achieved in a very large capacity range. and it has been found that the dispensing device according to the invention can dispense Anesamma from more than 2000 kg to 5 kg / hour. Dosing could be done alone by adjusting the rotation speed, so the device can be remotely controlled. Since the rotational speed is dependent on the electrical voltage, the display of the dosing quantity can be obtained in a very simple manner by means of electronic measuring devices.

The rotating dosing rod has a very low power requirement, so the device is inexpensive to use and is not very sensitive to vibrations, which is an advantage because quite strong vibrations often occur at the places where the filling devices are used.

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At its most advantageous, the dosing rod can be flexibly flexible * in parts, made of spring steel *, in which case it is able to deliver * if it contains a foreign body * e.g. stones * which are often present in the granules.

As stated in claim 3, the upper end of the shaft may have a horizontal circular plate * from the circumference of which the rod protrudes * preferably tangentially. A solid attachment of the dosing rod to the shaft is achieved and the rod can easily slide through the granular material due to its position. This advantage is achieved in particular in the embodiment according to claim 4.

If a vacuum line is connected to the inside of the housing for conveying the granular material * around the dosing element, a detrimental pressure state * may arise, which, however, is eliminated in the embodiment according to claim 5.

The embodiment according to claim 6 shows a particularly suitable form of the device * in which the entire dosing system can be easily removed from the housing for inspection and cleaning.

The invention will now be described with reference to the drawings * in which Figure 1 shows a side view of a dispensing device according to the invention and partly in section, and Figure 2 shows the same device in a perspective view and partly gutted.

The dispensing device has a housing * which is entirely marked with I and made of welded interconnected plates. The housing has an inlet channel 2 * connected to its horizontal top 3 * At the bottom the housing has an outlet channel 4 with outlets 3 for the dispensed material 7 and a sampling opening 6. .

On the other side of the inlet duct 2 there is an opening 8 * in the plate part 3, which is closed by a cover 9 * with press-up parts 10 * which form shielded inflow channels for conducting air into the housing. Protruding from the second wall of the channel 4 is a plate part 11 * which forms an angle of about 49 ° with the plate part 3. This plate part 11 forms an extension of the lower edge part 12 of the oblique plate part 13. The upper edge part 14 of the plate part 13 is bent * so that it can rest on the plate part 3. The edge part 14 can be fastened to the plate part 3 with a screw * which passes through the holes indicated by the number 13.

Attached to the plate part 13 is a hub 16 * whose axis is not vertical and on which is mounted a tube 17 * which is fastened to it by a screw 18. The height of the tube 17 can thus be adjusted by means of a screw 18.

A sleeve 19 is mounted around the top of the tube 17 by means of a screw 20 & a disc-shaped member 21 * is attached to the sleeve 19, the height of which can thus be adjusted, i.e. adjusted by means of a screw 20.

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The tube 17 is provided at the bottom with a flange 22 to which a support plate 23 for an electric motor 24 is attached, which is operatively connected to the drive shaft 27 by means of a gear 23 and a switch 26 · This is mounted on ball bearings 28 fixed to the tube 17. a circular plate 29 fixed to it by a nut 30.

Attached to the circular plate 29 is a relatively thin rod 31 # which leaves the circular plate towards the circumferential edge of the plate 21 approximately tangentially to the circular plate, but then bends slightly backwards with respect to the direction of rotation of the circular plate, as can be seen in Fig. 2. The rod 31 may be inserted and secured to a bore in the plate 29 which extends like a tendon at the periphery. Instead of one rod 31, there may be two or more rods as needed.

As shown in Fig. 2, the circular plate 29 and the plate 21 together with the drive shaft and the drive motor can be taken out of the housing as a whole, as all parts are mounted on the plate 13 and thus the inspection and placement of the plate 21 with the tube 17 is easy. the metered material can be sampled through the opening 6.

In use, the circular plate 29 with one or more breaks 31 rotates above the stationary plate 21 and the granular material is continuously fed through the inlet opening 2, forming a zone 32 which is more or less full of granular particles. In Figure 1, the boundaries of the zone depending on the cellular or entry angle of the material are indicated by dashed lines.

As the cartridge 31 rotates, particles are thrown into the circumferential space of the plate 21 as these particles slide along the plate portions 7 and 13 down into the outlet channel 4. The number of particles ejected depends on 20 using.

If the duct 4 is connected to a vacuum, then a rash change detrimental to the dosing may occur in the zone 32, but this is prevented because air can be drawn in through the opening 8.

In contrast to most known granular material dispensing devices, the device described has a tendency to become clogged as a bridge is formed from the material.

Due to the rearwardly bent shape of the rod 31, damage to the rod when impacting stones or other foreign objects is avoided.

Claims (6)

Dispensing device for granular material, in particular a mixing plant for preparing feed, which device is such that there is a housing (1) with an inlet opening (2) for the granular material at the top, a substantially horizontal disc-shaped member (21) arranged below the inlet opening, which is substantially larger than the inner inlet (2), and a dispensing member (J1) arranged to remove some of the granular material from the disc-shaped member (21) into a container below and adjustable from the inlet and disc-shaped member, characterized in that the dispensing member (2) 31) consists of at least one relatively thin, substantially horizontal rod attached to a vertical shaft (27) projecting through a central opening in the disc-shaped member (21) formed as a stationary plate and connected to a drive motor (24) having members of the shaft (27). ) to adjust the rotation speed. Device according to Claim 1, characterized in that the rod (31) is resiliently flexible. Device according to Claim 1, characterized in that the housing (1) has one or more openings (8, 10) in the vicinity of the plate (21) for the introduction of air. Device according to Claim 1, characterized in that the shaft (27) supports a horizontal circular plate (29) at its upper end, the circumference of which is preferably tangential to the rod (31). Device according to Claim 1, characterized in that the rod (31) curves backwards in relation to the direction of rotation. 5,56936 Claims Flat J Device according to claim 1, characterized in that the shaft (27) is mounted on a shaft tube (17) to which the plate (21) is height-adjustably attached and which is height-adjustably attached to a hub (16) fixed to the inclined plate (13) * which also supports a drive motor (24) £ the lower edge portion (12) of which rests on the projection (li) of the housing (1), while the upper edge portion (14) of the plate (13) is bent into a horizontal flange resting on the second projection (3) * of the housing 15), such as a screw (to connect the flange to the housing.