DE1927501U - PIPE CLEANING DEVICE ON CONCRETE PUMPS. - Google Patents

Description

The invention relates to a pipe cleaning device Concrete pumps, in which the rear piston chamber is driven by a suction

: v and pressure pipe with a water storage tank or with [

·; the public supply line is connected. |

ι '·' S "

It is known per se to provide concrete pumps with a Linrichtung, by means of which the space behind the concrete delivery piston is selected

[■: ■ rinsing with water continuously at the end of operation. Usually

I v / ird while advancing the piston via a pipe or hose

:; pipe water from a storage tank into the relevant room

Vi sucked in. When the piston returns, it pushes the water back into the container. Painful substances in the water

;; | settle on the bottom of the container. around after finishing

! ΐ of the concrete pumping process, also those still in the conveying pipe

if pipes to convey the residual concrete amount to the point of use

^: l dern are in a specially prepared conveying pipe section

] Foam rubber balls or other sealing parts introduced and the

11 The line is connected to the pump through a special slide

f ΐ

I over locked.

ί?; On the side of the sealing parts facing away from the residual concrete column

Il is then either compressed air generated by a compressor

il

If or pressurized water generated by a separate water pump

f ψ- I Ik,

59a, 3. 1927 501. Urban Society with Limited Liability, Stanzwerk und Maschinenfabiik, Velbert (Rhld.) · | Pipe cleaning device on concrete pumps. May 29, 65th JU 4S69. (T. 5; line 2)

flow into the delivery line. Pressurized water or compressed air sciiief'l Now practice the sealant with the xtest concrete column facing outwards. The disadvantage of the known devices is therefore the fact that that to promote the amount of residual concrete contained in the delivery pipe At the point of consumption, a separate pump is required in each case to generate pressure for the specific medium

ί is what makes the concrete pump more complex and expensive

Manufacturing is.

The object of the invention is to eliminate the specified deficiency and to provide a pipe cleaning device in the simplest possible way to create, which without the use of a separate pump, the conveyance of the residual concrete in the delivery pipes to the outside.

This object is achieved according to the invention in that in the

: the rear piston chamber with the water reservoir or with i

a public supply line connecting suction and pressure

• a multi-way valve is interposed in the pipe, which ^! in its normal position allows continuous flushing of the piston chamber and when the valve channels are switched when the piston returns, the water sucked in by the piston conveys via a pipeline into the concrete delivery pipeline, which was previously shut off by a slide valve, directly behind the sealant classified in the same.

In order to shut off the water delivery to the concrete delivery pipe on the one hand in a normal position of the multi-way valve and on the other hand a return of the valve when the valve is switched ^; ; The water to the storage tank must be shut off according to the

59a, 3. 1927 501. Urban limited liability company, stamping plant and machine factory. Velbert (RhId.). | Pipe cleaning equipment on concrete pumps. May 29, 65. U 4869. (T. 5; line 2)

1P - Ex. 65

Invention in the one leading from the reusable valve to the concrete Porder pipe Pressure pipe a check valve, and in a separate one, the valve with the suction and pressure pipe or with the storage tank connecting suction pipe a check valve interposed. Due to the inventive design of the pipe cleaning device the advantage is achieved that a separate pump for cleaning the concrete delivery pipe is saved, since the cleaning according to the invention can only be achieved by diverting the water flow by changing over a multi-way valve, the one for pushing out The pressure required for the residual concrete column is generated by the concrete pump that continues to run.

The subject of the invention is on the drawing, for example shown schematically, namely shows:

Fig. 1 is a longitudinal section through the concrete pump with the pipe cleaning device with normal valve setting for continuous flushing of the rear piston chamber and Pig. 2 shows the same longitudinal section as FIG. 1, but with the valve switched over for cleaning the concrete delivery pipe. The application is based on a concrete pump known per se, FIG. 1 showing the continuous flushing process known per se of the rear piston chamber 1 shows. This process takes place in such a way that when the piston 2 runs through a pipeline 3 water is sucked into the piston chamber 1 from the reservoir 4 or directly from a public supply line. When the piston 2 returns, it pushes the water back into the container 4, with the fines in the water Put it on the bottom of the container. In the suction and pressure line 3

59a, 3. 1927 501. Urban society with limited liability, Staiizwerk und Maschinenfabrik, Velbert (RhId.). !

Pipe cleaning device on concrete pumping

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a multi-way valve 5 is also interposed, vvie from Fig. clearly, with the normal setting of the valve, its passage channel allows the water to flow through unhindered. In order to clean the concrete Pörderrohrea with the help of the concrete pump To be able to make, the multi-way valve 5 is switched over «. As FIG. 2 shows that the suction pipe 3 to the piston chamber 1 is shut off. The valve passage channels then take one of these A position that when the piston is advanced, the water is sucked into the rear piston chamber via a separate, with the Allow suction and pressure pipe 3 or pipe 6 connected directly to the reservoir. In the pipe 6 is a Check valve 7 installed, which inevitably closes when the piston returns, so that the water does not return to the Reservoir 4 can flow back. The water is now printed in a pressure line 8, which was previously through a Slide 9 shut off concrete delivery pipe 10, directly behind the sealing means 11 (balls made of foam rubber or the like.) opens. The sealants then press the residual concrete column 12 to the outside to the point of use. During this process, the water cannot return to the storage tank flow, since the check valve 7 inevitably closes when the pressure line 8 is open. But that also applies to the suction process Water in the pressure pipe 8 is not sucked back with it, a check valve 13 is also built into this pipe, which during the Sufag process causes the water to flow back into the koi-ben area. inevitably locks.

Claims (2)

59a 5. 1927 501. Urban limited company j. Stanzv.erk and I toaschmentabrsk, Viiberf (RhM.). J Rohrreinigungseirarrichtung an Betonmim- n. May 29, 65. U 4869. (ΐ. 5; line 2) Protective claims? 1. Pipe cleaning device on concrete pumps, in which the rear Basket space through a suction and pressure pipe with a water storage tank or is connected to the public supply line, characterized in that in the suction and pressure pipe (3) a multi-way valve (5) is interposed, which in its normal position, the continuous flushing of the piston chamber (l) permitted and when changing the valve channels when the piston (2) returns, the water sucked in by the piston Via a pressure line (8) into the concrete delivery pipe (10), which was previously shut off by a slide (9), immediately behind the promotes sealing means (11) arranged in the same. 2. Pipe cleaning device according to claim 1, characterized in that that in the pressure pipe (8) leading from the multi-way valve (5) to the concrete delivery pipe (10) a check valve (13) »as well as in one separate, the valve (5) with the suction and pressure pipe (3) or with the water storage tank (4) directly connecting the suction pipe (6) a check valve (7) is interposed.