JPS58160281A - Bunker - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a bunker for the rounding of particularly bulk bulk materials, such as filter cakes, with a lower discharge device in the form of a horizontal conveyor.

The residual liquid produced in the water purification plant must be pressurized with a filter press to form a filter cake KL, and then the cake must be conveyed via a horizontal conveyor to a cake sump and then to a combustion furnace through a cake bunker. Such filter cakes have a strong tendency to form bulky bulk material and thus form bridging inward of the bunker, making it difficult to fill or blocking the i9. They can often only be maintained by manual means. In this case, the large pieces of lIK in the filter case encouraged the formation of bridges, and subdivision alone did not lead to improvement.

German Publication No. 2 450 3 314' (from which a device for preparing water purification plant residues is known), in which a rectangular elongated bunker whose entire bottom is formed by a collveyor is provided with a container end wall immediately above the discharge end. A breaking device is placed nearby which destroys the residue, resulting in a product resembling bulk material. This breaking device consists of nine rolls arranged one above the other, the two lower rolls rotating oppositely in the conveying direction. However, such rotating rolls are relatively prone to breakdowns, especially in conjunction with the filter cake, and can only be repaired by rounding, which is difficult to clean inside the bunker, and by tedious and expensive assembly operations.
i9 can be exchanged. Furthermore, such a breaking device is relatively expensive and structurally complex. Furthermore, experiments have shown that, especially in the case of filter cakes, comminution alone does not effectively prevent the formation of bridges and that the comminuted filter cake material must be further relaxed to form circles.

An object of the invention is to create a bunker for bulk bulk materials, which is advantageously avoided in the formation of bridges, yet is simple in construction, purposeful and failure-prone.

To solve this linear layer, especially in the ninth bunker of bulk bulk materials, which has a downward discharge device in the form of a horizontal conveyor, it is possible according to the invention to subdivide the material in the bunker above the horizontal conveyor. In order to do this, it is sufficient to arrange at least one cutting body with cutting edges oriented opposite to the conveying direction of the horizontal conveyor. The cutting body can then have an increasing section along the conveying direction of the horizontal conveyor in order to loosen the material.

The cutting blades subdivide the filter cake above the horizontal conveyor into a shearing force that is applied to the filter cake, and at the same time removes cake condensation, particularly at the outlet end face of the bunker housing. That is, the forces that hitherto led to the condensation of the cake are now used to advantage in cutting off the main cake.

Further features of the bunker and cutting blade according to the invention can be found in the embodiment sections 3 to 9.

□Hereinafter, embodiments of the present invention will be explained with reference to the drawings.

The bunker 1 shown in FIG. 1 is arranged below the filter cake brace 2 and can have the dead section shown in FIGS. 2a, 2b and 2C. A draft chain conveyor 3 is installed below the bunker 1 to discharge the filter cake.
A horizontal conveyor in the form of is arranged. For functional reasons, it is expedient for the draft chain conveyor 5Fi to be narrower than the respective bunker above it. If a bunker with a relatively large effective volume must be used, a large number of conveyors 5 are used side by side in a wide bunker, as shown in FIG.

In order to prevent the filter cake present in the bunker 1 from forming bridges, a cutting plate is arranged inside the bunker, as shown in FIGS. It faces the conveyance direction of the chain conveyor 3. As can be seen from FIG. 3, it is expedient to provide each draft chain conveyor 3 with a holding plate 5, which stabilizes the cutting plate 4 and additionally causes relaxation of the material to be cut.

It is expedient to fasten the cutting plate 4 to the side wall of the bunker 1.

A rounded form of the cutting body, which is particularly easy to attach to the bunker outlet, is shown in FIG. aI4, in which case the cutting body consists of a number of ropes 7 or wires. The cutting loga is
The seven-chain chain is tensioned perpendicularly to the conveying direction of the conveyor S in a plane parallel to the plane of the draft chains between the walls of the bunker 1 and has a sufficiently small thickness to achieve a cutting action.

In order to achieve improved cutting and relaxing effects, the cutting rope can have a length line that gradually increases in the lateral direction of the conveyor 3, and /i. The cutting rope can be arranged obliquely to the conveying direction of the draft chain conveyor 5.

It goes without saying that depending on the size of the bunker and the properties of the material, many cutting bodies can be arranged along the length of the draft chain conveyor.

As is clear from FIG. 6, it is also possible to arrange the cutting plate 4 at an increasing angle relative to the conveying direction of the draft conveyor. The corresponding angular position is shown in FIG. 7 for the cutting wire 7, which in this case also has an angle with respect to the lateral direction of the draft conveyor 3, as already mentioned according to FIGS. 5a and 5b. can be taken. This oblique positioning with respect to the conveying direction allows the perpendicular force components of the conveyed material to have a cutting and loosening effect on the conveyed filter cake with the aid of the cutting body.

In the bunker 1 shown in Figures 8a and 6b, the cutting plate 4 has a portion 4a that is diagonal to the conveying direction and a portion 4b that is diagonal to the lateral direction of the draft conveyor.
Tokaranasi is fixed to a vertical bangka wall. The two sections 4a and 4b can be connected to each other by means of a 1W weld or the like, and the filter cake conveyed can be cut and loosened particularly effectively by these two sections.

It is expedient to arrange the cutting body or bodies generally in the area of the bunker outlet, that is to say above the horizontal conveyor, at a relatively small distance. However, cut ~
The optimum height of the body depends on the bunker configuration and the constrained maximum bridging zone (K), and can be easily ascertained (by experiment).

[Brief explanation of the drawing]

Figure 1 is a schematic front view of a bunker according to Honjitsu 8AK with horizontal conveyor, Figures 2 &, 21), 2 (4) are cross-sectional views suitable for the purpose of the bunker according to Figure 1, Figures 5 & 5b are
Schematic front view and cross-sectional view of a cutting plate according to the invention for installing a bunker according to the figures; FIG. 4 is a schematic illustration of a bunker with a cutting rope according to the invention; FIGS. 5a and 5b show an alternative cutting rope arrangement. Schematic sectional view and plan view of the bunker with the sixth
Figure 7 is a schematic front view of another example of a cutting plate, Figure 7 is a schematic front view of another example of a cutting rope, and Figures 13a and 8b are schematic cross-sectional views and cutting lines of a bunker with another arrangement of cutting plates. It is a sectional view along B-H. 1... Bunker 5... Horizontal conveyor 4.7... Cutting agent Hikaru Esaki! ,! j , , , (,,+
1.15, -J-μ Fig. 1 2 Fig. 20 Fig. 2b Fig. 30 Fig. 3b Fig. 4 3

Claims (1)

[Claims] (1) having a lower discharge device in the form of a horizontal conveyor;
In the bunker for bulk bulk material, the bunker (1)
is arranged above the horizontal conveyor (5) at least one cutting body (4, 7) having nine cutting blades oriented opposite to the conveying direction of the horizontal conveyor for subdividing the material. A banca characterized by: 2. Bunker according to claim 1, wherein the cutting body ('t') has an increasing portion along the direction of conveyance of the horizontal conveyor (5) in a rounding that relaxes the material. (5) The cutting blade of the cutting body (4, 7) is a horizontal conveyor (3)
A bunker according to claim 1, which extends substantially obliquely to KjU. (4) The cutting blade of the cutting body ('+') is a horizontal conveyor (5)
2. A bunker according to claim 1, which extends obliquely to the conveyance direction. (5) A bunker according to any one of claims 1 to 4, wherein the cutting edge has a length that increases in the lateral direction of the horizontal conveyor. (6) Claim 1, wherein a similar number of cutting bodies are provided front and back at intervals in the length direction of the horizontal conveyor.
The banker described in any one of paragraphs to paragraphs 5 to 5. (7) The bunker according to any one of claims 1 to 6, wherein the plurality of cutting bodies are composed of cutting plates (4). (8) A bunker according to claim 7, wherein the cutting plate (4) has a groove connected to the cutting blade and increasing in the conveying direction of the horizontal conveyor (3). (9) One i9 plurality of cutting bodies consisting of nine ropes (7) tensioned with nine wires having a slight thickness sufficient to achieve the cutting action; Banca described in any one of items up to 6.