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Screening grid

A technology of grid screen and screen belt, which is applied in the field of grid screen, can solve the problems of increasing the manufacturing cost and maintenance cost of grid screen, and achieve the effect of reducing manufacturing cost and maintenance cost

Inactive Publication Date: 2007-08-22
阿克塞尔格拉梅尔斯伯杰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Significantly higher manufacturing and maintenance costs of the grids due to having to provide two grid elements of different types

Method used

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Examples

Experimental program
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Embodiment Construction

[0019] The grizzly screen shown in FIG. 1 is used to remove solids, in particular coarse objects, from a liquid flow, such as a waste water flow, flowing in the direction of arrow 2 in a waste ditch 1 . The grizzly screen 3 projects with its lower section into the waste water flow and from there extends obliquely upward beyond the waste water ditch 1 . The grizzly screen has a continuously or intermittently driven screen belt 5 in the direction of the arrow 4, which is guided by a lower 6 and an upper 7 guide wheel which is driven by a (not shown) conveyor belt drive. drive.

[0020] The discharge of solids is by gravity. This can be assisted by a drivable brush roller 8 and optionally by a flushing device (not shown).

[0021] As shown in detail in FIGS. 2 and 3 , the screen belt 5 has two endless chains 9 running via guide wheels 6 , 7 . Between the two endless chains 9 , support bars 10 extend at a defined distance, on which flat side boundary plates 11 are provided dire...

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PUM

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Abstract

The invention relates to a screening grid for discharging solids from a liquid flow. Said grid comprises a driveable screening strip (5) that can be inserted into the liquid flow and comprises two lateral link chains (9) between which carrying rods (10) extend, carrying groups of adjacent screening links (15). All screening links (15) comprise projecting parts (20) that extend respectively only in one direction from a group (14) of screening grids (15), without being overlapped by the projecting parts (20) of the adjacent group (14) of screening links (15). All of the screening links (15) of a group (14) are provided with projecting hooks on the outer side of the screening strip (5).

Description

technical field [0001] The invention relates to a grizzly screen for removing solids from a liquid flow, which has a drivable screen belt which can be inserted into the liquid flow, the screen belt has endless chains on two sides, between which support rods extend , supporting on support rods groups of grizzly elements arranged side by side and at least partially provided with hooks, each group of grizzly elements being arranged on two support rods independently of preceding and following groups of grizzly elements, and The grizzly elements have element protrusions protruding beyond the support rods. Background technique [0002] This grid screen is used to mechanically remove entrained solids above a predetermined particle size from a liquid. Typical areas of application are wastewater purification prior to treatment in clarification plants. [0003] For this purpose, grizzlies or sieves of different constructions are known. These grizzlies usually have a moving screen b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D33/04B07B1/10E02B8/02
CPCE02B8/026B01D33/04B01D33/275
Inventor 阿克塞尔·格拉梅尔斯伯杰
Owner 阿克塞尔格拉梅尔斯伯杰