FR2475028A1 - DEVICE FOR THE MECHANICAL PURIFICATION OF WATER - Google Patents

Abstract

THE DEVICE IS VERY ECONOMICAL AND LOW BIGGER. IT INCLUDES A ROTATING RAKE CONSTITUTED BY A SUPPORT 2 CARRYING SEVERAL ANNULAR DISCS ENGAGING WITH A FIXED CLEANER 7 WHOSE TIP 8 SHAPES A TEETH IN ENGAGED WITH THE ROTATING RAKE. THIS DEVICE THUS INCLUDES A MINIMUM NUMBER OF ORGANS.

Description

DEVICE FOR THE MECHANICAL PURIFICATION OF WATER

  The present invention relates to a mechanical purification device

  water, this device consisting of a rake and a rake cleaner.

  Mechanical water purification installations consisting of a stationary flat rake and a rake cleaner moving along this flat rake are already known. The rake cleaners have been established in particular in the form of claw carriages or rake lifting devices. Apart from the fact that some

  rake cleaners already require a very complicated construction, their operation

  It requires different additional bodies to produce advance movements.

  lifting, lowering, opening and closing.

  These prior water purification plants are expensive in construction and require a lot of space and, in general, are very expensive. The present invention proposes to establish a mechanical water purification device comprising a rake and a rake cleaner more character

economic.

  The problem thus posed is solved by providing a rake cleaner

  fixed and a rake moving along this rake cleaner.

  This gives a mechanical water purification device characterized by a small number of members, a simple construction and collected while requiring only monitoring and reduced handling, according to an advantageous embodiment of the invention , the rake compicid a support carrying several annular disks

  q k * are engaged with the rake cleaner.

  According to another aspect of the invention, it is advantageous to give the active portion of the rake cleaner directed towards the rake a certain amount of weight.

  to the direction of advancement of the rotating rake with a slight bulge to the outside.

  The collected impurities can thus slide very easily along the cleaner of

rake to the evacuation.

  The invention will now be described in more detail with reference to the accompanying drawings which show an embodiment thereof. In these drawings: FIG. 1 is a diametral section of a water purification device

according to the invention.

  Fig. 2 is a cross section along the line A-A of FIG. 1 The rake designated by the reference 1 is constituted by a support 2 carrying a plurality of annular disks 3. This support 2 comprises several spokes 4, spacers 5 and a drive shaft 6. The rake 1 can rotate in the direction of the arrow drawn in FIG. 2. The rake cleaner 7 has at its end looking

  the rake, a tooth 8 which engages with the annular discs 3 of the rake 1.

  - 2 - This rake cleaner 7 has in its portion 9 directed towards the rake a certain obliquity relative to the direction of rotation of the rake, this portion being slightly curved outwardly. The rake cleaner 7 is held stationary by an arm

  and by the ring Il surrounding peripherally the bottom of the Cylindrical envelope 12.

  The arrows in FIG. 1 indicate the direction of flow of the water to be purified and the purified water. When impurities are deposited at any point of the rake 1, they are driven by the latter to the cleaner of

  rake 7 which evacuates them along the convex surface in 9.

_475028

Claims (3)

  1. Device for the mechanical purification of water comprising a rake and a rake cleaner characterized by a fixed rake cleaner and a rake   turning past this rake cleaner.   2. Device according to claim 1 characterized in that the rake is constituted by a support carrying a plurality of annular discs including uhacun comes into engagement with the lettoyeur.   3. Device according to claim 1 or claim 2 characterized in that the active portion of the rake cleaner has a certain obliquity with respect to the direction of advance of the rake with a slight convexity to outside.