DD207161A1 - DEVICE FOR CLEANING HORIZONTALLY LEADING DRAIN LINES - Google Patents

Abstract

The invention relates to a device for cleaning horizontally located outflow lines, in particular extremely heavily structured sewers and sewers in concrete works. It is the object of the invention to minimize capital expenditure while avoiding physically heavy work in restoring operational drainage pipes. The object is to develop a transportable, safe and easy-to-use device that achieves a high cleaning effect on drain lines, which are completely or partially zugestzt by cement or Betonzuschlagstoffablagerungen with low operating and material costs, the Funktionsfaehigkeit the cleaned Restores lines. According to the invention, the device consists of an oil-hydraulic system in which the cleaning device is secured against unintentional roll-back by extendable support cylinders and the drive of the milling head takes place with simultaneous advance by means of a feed cylinder. The centric guidance is achieved by adjustable guide rollers. The special design of the milling head with cutting blades and knife holder ensures the best cutting and milling effect over the entire pipe cross-section and prevents jamming and damage to the pipe.

Description

Y-

Title of the invention

Device for cleaning horizontal drainage pipes

The invention relates to a device for the cleaning of horizontal outflow lines, especially of extremely heavily encrusted sewers and sewers in concrete plants.

Characteristic of the known technical solutions

There are known pipe cleaning device with the help of winches, by means of scratches, brushes, Longen, chains, abrasives {steel gravel or shavings), gases, nozzles, spirals and in accordance with VVP 79697 loose by means of flexible disks deposits of pipe inner walls and remove.

Furthermore, according to DE-OS 25 10 487 milling heads are known to perform with flexible elements with the aid of winding a pipe cleaning.

All these known methods and devices have in common that their use only in moderate deposits in drain lines, preferably in soft, mud-like substances, promising. If, however, pipes or channels z. B. with sedimented cement deposits or similar extremely hard encrustations partially or even completely added to fail the conventional devices due to their basic structure and their mode of action. For example, the

2-4910 1 8

well-known pull-through pipe cleaner "pig" with extremely hard encrustations, as they are found in drain pipes of concrete works, Kraftwerkers U ^ ä., Can only be used successfully if the cross-sectional narrowing amounts to not more than 5 % of the clear Rohrdurchaiessers. , 100% added drain lines must be pruned and re-laid with high capital expenditure, which is not only associated with heavy physical work, but also with high material and energy consumption and production restrictions during the construction period.

Object of the invention

It is the object of the invention to eliminate the physically heavy work and to minimize the cost of rebuilding functioning drainage lines,

Explanation of the essence of the invention

The invention has for its object to develop a device by means of which by cement or, concrete aggregate deposits wholly or partially added pipes or channels with low operating costs and low material consumption, a high cleaning effect is achieved, which ensures the re-commissioning and functionality of the purified drain line , The device should be portable, safe and easy to use and ready to use.

According to the invention, the device for cleaning drain lines and channels consists of a hydraulic system in such a way that the entire cleaning device is secured by means of extendable support cylinders against accidental skirts during the cleaning process and the drive of the milling head under simultaneous advance by means of feed cylinder. The centric guide within the pipe to be cleaned is ensured by adjustable guide rollers, which are each in the l20 ° position.

.. - 3 -. £

The device according to the invention is located during the cleaning process

-Outside aer AbfluSleitung '

: ... electric motor. :. '· .. ·' '.

• Hydraulic track , . ' , / ·.

... control unit (electric switch and directional control valve). _β '. Oruckiaanosneter. , ".... ....".

, Hose reel - inside the drain pipe:

_n Milling head with two or more cutter blades and knife holder. '' ... '.';''...:'. .. - _: '' \. \ .- '/. .- '.'. ν '. , Centering device in front of the hydraulic rotor or between feed and locking device

:, 'Hydraulic motor. ; · .; · .- ,, ... , ·. ·. ',', Throttle and check valves _β Feed cylinder with guide pin _β Locking device with Klesam pieces

I .öse · ''. .: ';'. , '. V-. · '"·..' ^: - '". ". '''' ^: ''. ''..:..'"'. The two parts of the appliance are functionally connected to each other by means of flexible / nachfuhrbare lines for water.'9 and oil 7,

The invention will be explained below with reference to a Ausföhryngsbeispiel »The accompanying drawings show Fig. 1 cleaning device in the starting position Fig. 2 Reinigungsvorrichtyng in working position Fig. 3 Frцsmesser and knife holder

The cutting knives 1 of the device according to the invention are clamped in a knife holder 2 "The force of the hydraulic rotor 8." Is. "Ube.r its stub axle, which is double stored within the bearing bush 3 / transferred to the knife holder 2 · The feed cylinder 12 / the means Bearing 10 and bearing - 'bolt 11 is hingedly connected to the hydraulic motor 8, has to stabilize the feed motion two Föhrungsbolzen 13 and a locking unit 14 * The Hslteplatte 15, on the one hand the Föhrungsbolzen 13 receives $ on the other hand also serves to attach the piston rod of the feed cylinder 12 and the cylinder holder 16, The cylinder holder 17 located on the cylinder holder 17, Zy-

Linde heads 18, piston rods 19 and Druckstucke 20 guarantee the vertical locking of the cleaning device * The centric guide within the pipeline is ensured by roller holder 5 and Förhrungsrollen 6. For the purpose of line cleaning of incrustations, the cleaning device is introduced against the Rohrgefille in the discharge line in the starting position. In this case, the piston rods of the feed cylinder 12 and the locking device 19 retracted »By pressing the directional control valve, the pressurization of the following device subsystems takes place side by side. Lock - Feed unit - Milling unit

By extending the piston rods 19, the device is locked. At the same time, the hydraulic motor 8 is put into operation. .V-. ... '-. ; A controllable throttle valve controls the slow extension of the piston rod of the feed cylinder 12. The device is now in working position * The feed cylinder 12 is fully extended, the milling head rotates and continuously carries the The cutting and milling action of the cutting blade 1 covers the entire line cross-section in the thrust direction.

The cutting blades 1 have a trapezoidal cross-section, with the narrow side facing the pipe wall «The knife holder 2 is passed with parallel and evenly spaced from the axis staggered grooves for receiving the cutting blade 1. ^: V /. ' V ^: .:. /: .. ^V-V. [ .: V. ·: The firm twisting of the cutting blade 1 with the knife holder 2 is achieved by screw connections.

Clamped into the knife holder 2, the end faces of the milling cutters 1 form an obtuse angle relative to each other. Tungsten carbide flakes are distributed indissolubly evenly distributed over the entire length of the forehead, resulting in a regular toothing 4. ^ V- '-. "· /'." V '. '..' v '. -V '·:. ^; The cut edges of the carbide tips are parallel to the face of the cutting blade 1. This results in an undercut on the outer edges.

, ::. - ⁶ - .499 UV 8

Due to the special design of the milling head, jamming is prevented. _{G The} shredding of the loosened deposits is largely prevented, guaranteed and a damage to the pipe avoided.

When the milling unit is put into operation, water δ is removed via a hose line. ' (Rinsing) the. supplied mechanically dissolved Inkrittelurtgen «,. -The discharge, of the "water" Raumgut Gestuchieches is inevitably mad Regarding the sense of gravity · With the beginning of the .Error process the rising working pressure readable via a * .Druckmanometer * is displayed «• After reaching the. snax, push rod feed roller 12 turns, the milling head 1 free from the surface to be cleared; Deposits, signaled ablesbareDruckminderung a © manometer which then brought 'the termination of the milling process _e ". * ..' The. Wegeventil.wird in starting position, thus interrupting the pressure of feed and Frlisein-.heif * The 'operation of the directional valve in ent »Opposite direction is retracted above a skirting valve of Vorschubezylinder.12 ^ at the same time the Arretiereinrichtong is released.

In this case, there is a relative forward movement of the cleaning device "The hydraulic motor 8 is thereby out of service" set.

The renewed power stroke begins with the extension of the locking device. After locking, the operation is again carried out by the milling head drive and feed movement »The length of the cleaning section is determined once by standardized discharge line length between the * 'cleaning slots and, secondly, by the lingual of the hydraulic and flushing lines.

The cleaning process is supported by unwinding the milled out deposits by means of water.

After completion uer work, the removal of the cleaning device from the cleaning slot is given in "to the cleaned effluent line opens"

The hydraulic and spool lines are removed from the cleaning device »,

In case of accidents, however, the cleaning device via a towline, which is attached to the eyelet 21, pulled backwards out of the cleaned pipe or channel. The use of erfindungsgenääßen cleaning device ensures a considerable saving of working time and the removal of physically heavy work by restoring functional drain lines without general replacement of the pipes. The invention is characterized in particular by the fact that. .: \ '.- ·.;'''^;: \:. ''. , '· ^; : ''. '. ^:: '- .; , '. ; , ,. . ".-

- Their use is possible with extrera hard encrustations and with partially, completely to completely added lines

the cleaning effect achieved is very high,

the operating effort is extremely low,

the recovery and operational efficiency of the cleaned effluent lines are ensured;

- damage to the pipes to be cleaned is avoided by the special design of the breakfast knife «

The dimensioning of the cleaning device is the nominal diameter of the drain lines to be cleaned while maintaining the V.'irkprinzips to adjust.

Claims (1)

Device for cleaning discharge lines with hydraulic motor and feed cylinder of known design, characterized in that guide pins (13), feed cylinder (12) and cylinder holder (16) are rigidly fastened to a holding plate (15), a locking device comprising cylinder holder (16), cylinder liners ( 17), cylinder heads (18), piston rods (19) and printing blocks (20) and a knife holder (2) parallel and at a uniform distance from the axis staggered grooves for receiving cutting blades (1) which clamped by means of screw with this firm are that the cutting blades (1) frontally have a uniform toothing (4), are undercut the flanks and form the front sides to each other an obtuse angle « For this JL pages drawings