DE19800082A1 - Chain conveyor - Google Patents

Abstract

The invention relates to a chain conveyor, used especially for transporting horizontally or at an angle floury or granular mass flows, having at least one delivery opening. The aim of the invention is to configure a delivery opening in such a way that it is easy to clean and requires no maintenance. To this end the invention provides for the delivery opening to be formed by pivoting flaps (8) between which a sealing element (9) is positioned and which together form an even inner surface. The flaps (8) are connected to a crank gear (12) with dead centre lock.

Description

The invention relates to a chain conveyor, in particular a horizontal conveyor for Promotion of granular or powdery material, e.g. B. from or in mills or Silo systems and. The invention is particularly directed to a discharge flap for such a chain conveyor.

For the gentle promotion of mass flows, horizontal and Inclined conveyor as well as steep conveyor used.

Trough chain conveyors for steep loading and unloading are generally known. So be EP-B-25981 writes such a conveyor with a conveyor trough and one Return trough, which is between a pick-up foot and an unloading head stretch as well as with a conveyor chain with bottom open carriers, the runs over a wheel arranged in the unloading head and one in the conveyor trough arranged conveyor run and a return run arranged in the return trough, the drivers are designed as a bracket.

The receiving foot contains a cleaning slide or the like and is open at the bottom. Chain conveyors for the horizontal to inclined conveying of are also known Mass flows with a similar basic structure. They are used to fill Silos, bunkers or for the horizontal conveying of mass products. The Be Movement of the conveyor chain immersed in the product causes a gentle advance upward movement of the entire product mass.

Such horizontal conveyors have at least one discharge for the product discharge opening that is or is opened and closed by means of a slide. Such Outlet or discharge slides are complex in their construction and only have insufficient sanitation conditions.

The object of the invention is to overcome the disadvantages of the prior art  avoid and a generic chain conveyor for horizontal or Inclined conveyance of mass flows to be improved to such an extent that a discharge opening is formed, which ensures good sanitation by covering all moving parts enables and is maintenance-free.

The problem is solved on the basis of the characterizing part of the patent claim. The discharge flap is divided symmetrically and both flap halves are ready can be swung out so that residue-free emptying is possible. The against the Conveyor blades facing the inside of the discharge flap are smooth and between the Flap halves, a sealing element is arranged flat on which the flap half gaps without gaps. For a dust-tight fit of the flap halves against the density element as well as for a controlled opening and closing of the flaps is a Crank mechanism with dead center lock provided. The entire inner surface of the Aus the hatch is smooth and dustproof to the outside. With the flap closed there is no further recesses, so that good sanitation is guaranteed. Which he Solution according to the invention also enables a slim design and is therefore also suitable for tight installation conditions.

In the following, the invention is to be illustrated in an exemplary embodiment using a drawing be described in more detail. In the drawing they show

Fig. 1 shows schematically a part of the chain conveyor

Fig. 2 shows a section AA with the flap closed and

Fig. 3 is a section of FIG. 2 with an opened discharge flap.

A chain conveyor 1 comprises, inter alia, a conveyor chain 2 with a conveyor run 3 and a return run 4 , which extends between a drive sprocket (not shown) and a deflection sprocket 5 . The wing-shaped entrainers 6 trained and continuously rotating in operation conveyor chain 2 is driven by a motor, not shown, via the drive sprocket. The product fed via an opening (not shown ) is conveyed by the drivers 6 along the bottom 7 of the chain conveyor 1 to a discharge opening. This consists of two flaps 8 which can be pivoted about a fulcrum 15 , between which a sealing element 9 is arranged. The flaps 8 in turn are arranged with a drive unit 11 (preferably pneumatic, manually possible) and a crank mechanism 12 within a cover 10 . The surface of the flaps 8 and the sealing element 9 directed against the drivers 6 are smooth, so that there is a flat surface. Product deposits or carry-over are thus avoided. When the flaps 8 are closed, the base 7 has a continuously smooth and flat inner surface.

The crank mechanism 12 works with a dead center lock, wherein guides 14 of the flaps 8 are guided by means of a crank rod 13 . This enables the flaps 8 to be sealed tightly and controlled opening. The smooth inner surfaces of the flaps 8 mentioned further enable a residue-free discharge of product.

The sealing element 9 may be made of metal or be made of an elastic material.

A spring element ensures that the flap 8 rests on the sealing element 9 without play.

The chain conveyor 1 is completely closed and all transitions are cross-sectionally adjusted so that product deposits are avoided.

The chain conveyor 1 serves as a one-way or two-way conveyor with horizontal or inclined conveying direction of the conveyance of floury, coarse or fine-grained, dry products in a compact, uniform product flow.

Reference list

1

Chain conveyor

2nd

Conveyor chain

3rd

Funding strand

4th

Return strand

5

Deflection sprocket

6

Carrier

7

ground

8th

flap

9

Sealing element

10th

cover

11

Drive unit

12th

Crank mechanism

13

Crank rod

14

guide

15

pivot point

Claims (4)

1. Chain conveyor for the horizontal or inclined conveyance of mass flows by means of a conveyor chain ( 2 ) which is provided with drivers ( 6 ) and which rotates between a drive sprocket and a deflection sprocket ( 5 ), whereby a carried product is conveyed to a closable discharge opening is characterized in that the discharge opening by two pivotable Klap pen (8) is formed, abutting the flap (8) at a sealing element (9) and further that the flaps (8) having a crank drive (12) ver with dead-center connected are . 2. Chain conveyor according to claim 1, characterized in that between the flaps ( 8 ) a sealing element ( 9 ) is arranged, which is designed such that in the closed state of the flaps ( 8 ) a continuously smooth (flat) and dustproof inner surface is made . 3. Chain conveyor according to claims 1 and 2, characterized in that the flaps ( 8 ) are symmetrical and are each arranged about a pivot point ( 15 ) pivotable bar. 4. Chain conveyor according to claims 1 to 3, characterized in that an inner bottom ( 16 ) of the chain conveyor ( 1 ) with closed flaps ( 8 ) is consistently flat and smooth.