KR100351332B1 - Pumping method of contractility mortar - Google Patents

Abstract

The present invention relates to a pumping method of shrinkable mortar,

The upper and lower suction pipes are installed in series at the outlet side of the branched suction guide tube to suck and discharge the shrinkable mortar into the lower cylinder by the retraction action of the cylinder rod operating in the opposite direction, and the shrinkable mortar discharged from the lower suction pipe is The cylinder rods of the upper suction pipes installed in series so as to operate opposite to each other on the upper side thereof retreat to suck and discharge the shrinking mortar into the upper cylinder, and the lower suction pipe sucks the shrinking mortar and the upper suction pipe shrinks the mortar. By in charge of the discharge of

The shrinkable mortar can be pumped effectively according to the height and distance of the work site, improving work efficiency, minimizing work time and manpower, and pumping various materials including shrinkable mortar. It can be greatly expanded, and the pulsation phenomenon and clogging phenomenon are prevented at the time of working, so that it is possible to improve product quality and maximize workability.

Description

PUMPING METHOD OF CONTRACTILITY MORTAR}

The present invention relates to a method of pumping shrinkable mortar, more specifically, mortar contracted by pressure, such as mortar mixed with crushed foamed resin or mortar generating bubbles, for high-speed or long-distance pumping at various construction sites. In particular, since mortar can be pumped without regard to the height and distance of the work site, it is possible to realize the convenience of work, the time required and the minimization of manpower. It can be extended, and the pulsation phenomenon is eliminated during the pumping operation to improve quality and work.

In general, shrinkable mortar is also called shrinkable concrete or polyconcrete. It is used for placing insulation and soundproofing effect on the floor or wall of apartment, building, etc. Volume% is mixed with an appropriate amount of water, cement and sand are mixed with an appropriate amount of water, and a foaming agent is mixed therein to form bubbles, and rock wool is mixed.

The shrinkable concrete mixed with the foamed resin is used to crush the foamed resin discarded after the use of various packaging materials and fillers to the required standard, so that it is possible to obtain environmental pollution prevention and resource recycling effects as well as insulation and sound insulation effects. It is noted that it is excellent and the most noticeable building material, and the use of the shrinking mortar is actively promoted in buildings and houses that are newly constructed.

Figure 1 illustrates a typical configuration of a conventional mortar pumping device, the suction guide tube (1) for introducing the mortar from the hopper (not shown), and are respectively installed on both sides of the end of the suction guide tube (1) A pair of suction pipes 2 in which the jersey bolts 21 are rolled up, a pair of discharge pipes 3 provided on the suction pipes 2 and having a jersey bolt 31, and the suction guide pipes 1 And up and down valve pipes 4 and 4 'respectively provided between the suction pipe 2 and the discharge pipe 3, and the weight ball valves 5 and 5' inserted and opened to open and close the valve pipes 4 and 4 '. ), A cylinder 6 and a cylinder rod 61 that are rolled on one side of the suction pipe 2, a connecting pipe 7, a discharge pipe 8, and an injection hole that are sequentially connected to the upper end of the discharge pipe 3. 9) and a power transmission mechanism 10 for moving the cylinder rod 61 back and forth.

In the conventional mortar pumping device having such a configuration, as shown in FIG. 2A, when the cylinder rod 61 is retracted, a vacuum pressure is generated inside the cylinder 6, so that the lower weight ball valve 5 ′ is the lower valve tube 4 ′. ), The mortar is sucked into the cylinder (6) through the suction guide tube (1), wherein the upper weight ball valve (5) to maintain the upper valve tube (4) closed by its own weight do.

When the cylinder rod 61 is advanced from the maximum retracted position, at this time, as shown in Fig. 2b, the lower weight ball valve 5 'is in contact with the lower valve tube 4' by the mortar pressure. The suction guide pipe 1 is prevented from flowing out, and at the same time, the upper weight ball valve 5 is pushed up from the upper valve pipe 4 and ascends into the discharge pipe 3 so that the connection pipe 7 and The mortar is discharged to the working position through the discharge pipe 8 and the injection hole 9.

The operation proceeds in such a manner that two cylinders 6 installed in both suction pipes 2 configured in parallel move relative to each other and pressurize the mortar.

However, such a conventional mortar pumping device has been pointed out that the pumping of the shrinkable mortar is impossible.

That is, when the shrinking mortar is initially introduced in the state as shown in FIG. 2A and discharged in the state as shown in FIG. 2B, the foamed resin or bubbles constituting the shrinkable mortar are contracted in the suction pipe 2 by the discharge pressure. In addition, the contraction does not push up the weight ball valve 5 to open it, as well as the weight ball valve 5 is displaced first by the contraction of the shrinkable mortar remaining inside the injection hole 9. At the same time, the shrinkable mortar remaining in the suction pipe 2 is reduced and is re-introduced into the cylinder 6 when the suction operation is performed in the state as shown in FIG. 2A, and the suction of the cylinder 6 is prevented. Leads to volume reduction.

Such a phenomenon becomes more severe as the pressure between the injection holes 9 in the discharge pipe 3 increases, leading to an inhalation and pumping incapacity, and consequently, it is impossible to pump the shrinkable mortar in a high working position or far away.

Therefore, it is not only possible to pump shrinkable mortar in a high-rise building or a relatively long distance, but it is also possible to pump shrinkable mortar at a low position or at a close distance, but in this case, the pumping efficiency is extremely reduced, making it difficult to actually use. It is.

In view of the above problems, the present invention enables pumping of shrinkable mortar contracted by compression according to the height and distance of the work site, thereby realizing work convenience, minimizing work time and manpower, and shrinking mortar as well as general mortar. Its purpose is to provide a pumping method for shrinkable mortar that can significantly expand the range and use of the equipment by allowing the pumping of highly viscous materials such as sludge in rivers and wastewater plants.

In order to effectively achieve the above object, the present invention provides a method of pumping shrinkable mortar, wherein the upper and lower suction pipes are respectively installed in series at both ends of the branched suction guide tube, so that the shrinkable mortar is moved into the lower cylinder by the retraction action of the cylinder rods which act in opposite directions. Suction and discharge, and the shrinkable mortar discharged from the lower suction pipe is sucked and discharged into the upper cylinder by the retraction action of the cylinder rod of the upper suction pipe respectively installed so as to oppose each other on the upper portion, The lower suction pipes interacted with each other so that the pumping could be carried out constantly regardless of the shrinkage rate of the shrinkable mortar or the pumping load.

1 is a schematic configuration example of a conventional pumping device.

2 is a functional diagram of a conventional pumping device,

a) is a mortar suction section.

b) is a sectional view of the mortar discharge state.

3 is an explanatory view of the operation of the pumping device to which the present invention is applied,

a) is a sectional view of the mortar suction and discharge state.

b) is a sectional view of the discharged state of the suction mortar.

-Explanation of the symbols for the main parts of the drawings-

1: suction suction pipe 2a: lower suction pipe

2b: upper suction pipe 3: discharge pipe

4,4 ', 4a, 4b, 4c: Valve pipe 5,5', 5a, 5b, 5c: Weight ball valve

6a: lower cylinder 6b: upper cylinder

7: connector 21,21a, 21b, 31: jersey bolt

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, in which like parts and members are denoted by like reference numerals.

3 is a conceptual diagram illustrating the operation of the shrinkable mortar pumping apparatus according to the present invention, and includes a lower suction pipe 2a including a jersey bolt 21a at the end of the suction guide tube 1 for introducing the shrinkable mortar from the hopper. ), A valve tube 4a and a weight ball valve 5a are installed therein, and a lower cylinder 6a including a cylinder rod 61a is provided on one side of the lower suction pipe 2a.

The cylinder (6a) and the cylinder rod (61a) can be selected and configured mechanically or hydraulically, it is preferable to comprise a hydraulic cylinder for easy operation and maintenance.

An upper suction pipe 2b including a jersey bolt 21b is installed at an upper portion of the lower suction pipe 2a, and a valve tube 4b and a weight ball valve 5b are installed therein, and an upper suction pipe 2b. On one side of the upper cylinder 6b including the cylinder rod 61b is installed.

The upper and lower cylinders 6a and 6b are connected to each other in a mechanism, such as a hydraulic circuit, so that the upper cylinder rod 61b moves backward so that the lower cylinder rod 61a moves forward.

A discharge pipe 3 including a jersey bolt 31 is installed at an upper portion of the upper suction pipe 2b, and a valve tube 4c and a weight ball valve 5c are installed therein.

The upper part of the discharge pipe (3) is connected to the connection pipe (7), between the suction guide pipe (1) and the connection pipe (7) upper and lower suction pipes (2a, 2b) and discharge pipe (connected in series) 3) are connected in parallel.

Referring to the pumping method of the present invention shrinkable mortar according to such a configuration, first, when the cylinder rod 61a of the lower cylinder (6a) is reversed, as shown in Figure 3a, a suction force is generated inside the lower cylinder (6a) Since the valve 5a opens the valve tube 4a, the shrinkable mortar is sucked into the lower cylinder 6a through the suction guide tube 1.

At this time, the cylinder rod 61b of the upper cylinder 6b moves forward to press the shrinkable mortar inside the upper cylinder 6b, and accordingly, the weight ball valve 5b is opened by the pressure inside the upper suction pipe 2b. Closing of 4b prevents the shrinkable mortar from flowing backward to the lower suction pipe 2a, and at the same time, the weight ball valve 5c of the discharge pipe 3 opens the valve pipe 4c by the pressure of the shrinkable mortar. .

Therefore, the shrinkable mortar pushed out through the discharge pipe 3 is discharged and transported to the work site through the connection pipe 7.

This operation is the result of the upper and lower cylinders 6a and 6b perform opposite operations, and thus share the role, that is, the lower cylinder 6a is responsible for the suction of the shrinkable mortar and the upper cylinder 6b is responsible for the discharge of the shrinkable mortar. Appears.

In addition, when the lower cylinder rod 61a is advanced to press the contractile mortar inside the lower cylinder 6a as in the state of FIG. 3B, the weight ball valve 5a is connected to the valve tube by the pressure inside the lower suction tube 2a. Closing 4a prevents the shrinking mortar from flowing back to the suction guide tube 1 side, and at the same time, the upper cylinder rod 61b moves backward to generate suction force inside the upper cylinder 6b.

In this case, since the weight ball valve 5c of the discharge pipe 3 closes the valve pipe 4c, the possibility of backflow of the shrinkable mortar remaining in the discharge pipe 3 and the connection pipe 7 is eliminated.

On the other hand, when the internal pressure of the lower suction pipe (2a) and the suction force of the upper suction pipe (2b) increases in relation to the operation, the weight ball valve (5b) located between the upper, lower suction pipes (2a, 2b) is a jersey bolt Since the valve tube 4b is opened to the position where it is in contact with the 21b, the shrinkable mortar inside the lower cylinder 6a is transferred into the upper cylinder 6b without being compressed at all.

Here, the series of operations described above describe the process of feeding the shrinkable mortar from the upper and lower suction pipes 2a and 2b and the discharge pipe 3 connected in series, and the end of the suction guide pipe 1 branches and Upper and lower suction pipes 2a and 2b and discharge pipes 3 are respectively installed in parallel at both ends, and the discharge pipes 3 discharge the shrinkable mortars alternately through one connection pipe 7, so that the shrinkable mortars Is discharged continuously without pulsation.

As described above, the present invention capable of pumping shrinkable mortar can supply the shrinkable mortar by connecting the discharge pipe according to the height and distance of the pouring site, which essentially feeds the shrinkable mortar sucked from the lower cylinder 6a into the upper cylinder 6b. At the same time as the upper cylinder (6b) and actively suction the shrinkage mortar by lowering the internal pressure of the lower cylinder (6a) is possible by minimizing the shrinkage of the mortar, thereby maximizing the suction and discharge capacity, that is, pumping capacity Represented by

In addition, the upper and lower cylinders (6a, 6b) is responsible for the suction and discharge of the shrinkable mortar, respectively, so that the pumping caused by the contraction, relaxation and backflow of the shrinkable mortar when the suction and discharge process is repeatedly performed in one cylinder Incapacity can also be actively prevented.

As described above, according to the present invention, the shrinkable mortar can be effectively pumped according to the height and distance of the work site, thereby improving work efficiency, minimizing work time and manpower, and pumping various materials including shrinkable mortar. The scope of use and use can be greatly expanded, and pulsation phenomenon and clogging phenomenon are prevented during the work progress, which can improve product quality and maximize workability.

Claims (1)

One side is coupled to the suction guide tube, the other side is coupled to the coupling pipe in the mortar pumping device is configured in parallel, the inlet side is coupled to the outlet of the suction guide tube 1 via the valve tube 4a, the outlet side is The lower cylinder 6a coupled to the inlet of the upper cylinder via the valve tube 4b, the inlet side is coupled to the outlet of the lower cylinder 6a, and the outlet side is discharged via the valve tube 4c. The upper cylinder 6b coupled in series to the inlet), the inlet side is coupled to the outlet of the upper cylinder 6b, the outlet side is composed of a discharge tube (3) coupled to the inlet of the connecting pipe (7), When the cylinder 6a and the upper cylinder 6b act in opposition to each other and the cylinder rod 61a of the lower cylinder 6a moves backward, suction force is generated inside the lower cylinder 6a so that the weight ball valve 5a is opened. The tube 4a is opened so that the shrinkable mortar (6a) is sucked into the interior, At this time, the cylinder rod 61b of the upper cylinder 6b is advanced to pressurize the shrinking mortar inside the upper cylinder 6b, and accordingly, the weight ball valve 5b is opened by the pressure inside the upper suction pipe 2b. The tube 4b is closed to prevent the shrinkage mortar from flowing back to the lower suction tube 2a, and at the same time the weight ball valve 5c of the discharge tube 3 opens the valve tube 4c by the pressure of the shrinkage mortar. Accordingly, the shrinkable mortar pushed out through the discharge pipe 3 is continuously discharged through the connecting pipe 7 to the work site to prevent the pumping impairment due to shrinkage and backflow of the shrinkable mortar. Method of pumping mortar.