JP3831869B2 - Ready-mixed concrete processing equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a ready-mixed concrete processing apparatus for processing fresh concrete when it remains in a construction site.
[0002]
[Prior art]
It has been a long time since environmental issues have been screamed in recent years. Especially in the construction industry, the treatment of industrial waste has become very important and is a problem today.
For example, when a structure is formed from concrete, the ready-mixed concrete may be left over, and the concrete mixer truck that has been transported may be washed at the construction site. The surplus or washed away ready-mixed concrete must be processed.
[0003]
As a conventional ready-mixed concrete processing apparatus for processing such ready-mixed concrete, one described in Japanese Patent Application Laid-Open No. 60-27965 is known. As described in the right column, lines 32 to 37 of this publication gazette, the ready-mixed concrete processing apparatus 1 “When processing the remaining ready-mixed concrete, first, it is rough at the same position on the ground surface as the car wash. After primary recovery of coarse aggregate such as gravel using the aggregate recovery device, water containing the remaining fine aggregate is sent to the fine aggregate recovery device for secondary recovery of fine aggregate such as sand. "Let's do it."
[0004]
Therefore, as shown in FIG. 5, the conventional ready-mixed concrete processing apparatus described in Japanese Patent Application Laid-Open No. 60-27965 includes a primary recovery apparatus 2 that recovers gravel and a secondary recovery apparatus 5 that recovers sand. It becomes a large-sized device that must be installed at a distant location, and the components of the ready-mixed concrete after removing the gravel are once settled in the first sewage tank 3, and the first sewage tank 3 and the secondary recovery device 5 It is necessary to connect the sand pump 4 between them.
[0005]
Moreover, this conventional ready-mixed concrete processing device is very difficult to bring in a plurality of large-scale devices and water tanks as described above when performing tunnel construction where the construction site is in a remote mountainous area or the like. In addition, the cost for transportation and installation is high. It was also difficult to secure the installation location.
[0006]
Further, in the above conventional treatment apparatus, the water containing the remaining sludge (cement hydrate) is introduced into the second sewage tank 6 and then does not contain sludge via a large sewage treatment apparatus (not shown). It becomes treated water and is stored in the water tank. Then, as described in the 40th line of the left column of page 2 to the first line of the right column, the stored treated water is partially pumped after ground water or industrial water is added. Then, after being used to wash the inside of the tank of the mixer truck 7 to become muddy water, it is thrown into the primary recovery device 2 again. However, this requires not only a large amount of water, but also the cement adheres to the separation means of the primary recovery device 2 or the secondary recovery device 5 and solidifies, so that clogging is likely to occur.
[0007]
[Problems to be solved by the invention]
In view of the above points, the present invention is a compact processing device that is convenient to carry to a construction site, and is used without causing clogging in gravel and sand separating means even in places where there is no water supply facility. An object of the present invention is to provide a ready-mixed concrete processing apparatus.
[0008]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, first, the means taken by the invention according to claim 1 will be described with reference numerals used in the description of embodiments described later.
“The base 11 is provided with a primary receiving tank 13 provided with a screen 13a for separating gravel using water and a secondary receiving tank 14 provided with a screen 14a for separating sand using water. In the ready-mixed concrete processing apparatus 10 configured to separate the gravel and sand from the ready-mixed concrete supplied to the primary and secondary receiving tanks 13 and 14, the primary receiving tank 13 is placed in the secondary receiving tank 14 at a predetermined interval. A processing tank 15 is configured by being integrated in an open state, and the processing tank 15 is pivotally supported on the base 11 by a single horizontal shaft 12 so that the processing tank 15 faces upward. When the feed port 15a faces the ready-mixed concrete supply port 16a and the treatment tank 15 is rotated by the horizontal shaft 12 , the discharge of each of the primary receiving tank 13 and the secondary receiving tank 14 is performed. Exit 1 a, 15a and is opposed to each of the discharging means side 22, 22, gravel and sand and in fresh concrete processing apparatus 10 ", which is characterized in that the so that to discharge the respective discharge means 22 and 22 are separated is there.
[0009]
That is, when the gravel processing apparatus 10 separates gravel and sand from the remaining ready-mixed concrete after the structure is formed with concrete, first, water and ready-mixed concrete are put into the primary receiving tank 13 to separate the gravel. Further, the sand is removed by putting it in the secondary receiving tank 14, but since the primary receiving tank 13 is integrally incorporated in the secondary receiving tank 14 by one horizontal shaft 12, separation of gravel and sand removal are performed. Separation can be performed continuously in the compact processing tank 15.
[0010]
In addition, since gravel is separated and remains on the screen 13a of the primary receiving tank and sand is separated and remains on the screen 14a of the secondary receiving tank, the gravel and sand are also discharged to the processing means 15 to the discharge means side. Just by moving, gravel and sand can be discharged separately.
[0011]
Therefore, this ready-mixed concrete processing apparatus 10 has the advantage that the process which isolate | separates gravel and sand from the supplied ready-mixed concrete can be collectively performed with one compact apparatus.
[0012]
Further, the means taken by the invention according to claim 2 will be described with reference numerals used in the description of the embodiment described later, with regard to the ready-mixed concrete processing apparatus 10 which is the invention according to claim 1,
“After installing the water tank 17 for storing treated water after removing gravel and sand and the liquid cyclone 18 on the base 11, the treated water in the water tank 17 is passed through the liquid cyclone 18, The screens 13a and 14a installed in the primary receiving tank 13 or the secondary receiving tank 14 are used as cleaning water for cleaning. "
It is.
[0013]
That is, this ready-mixed concrete processing apparatus 10 adds the treated water from which sand and gravel have been removed to the hydrocyclone in addition to the advantage of the above-mentioned claim 1 to remove the cement component, and the primary screen or secondary. Since the screen is reused as washing water, it is natural that it is difficult to obtain the water because it is possible to wash away the cement components adhering to the gravel and sand separated in the primary screen or secondary screen. Therefore, it can be used in a mountainous area.
[0014]
In other words, since the ready-mixed concrete processing apparatus 10 according to claim 2 reuses washing water, gravel from ready-mixed concrete and the like even in places where there is no water supply and sufficient water. The work of separating sand can be performed sufficiently, and there is an advantage that each screen is not clogged.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a front view of a ready-mixed concrete processing apparatus according to the present invention, and FIG. 2 is a plan view.
[0016]
In this ready-mixed concrete processing apparatus 10, a horizontal axis 12 is installed at the approximate center of a base 11. As apparent from FIG. 2, the secondary receiving tank 14 is wider and larger than the primary receiving tank 13, and the primary receiving tank 13 is integrated with the primary receiving tank 13 at a predetermined interval in the secondary receiving tank 14. Thus, the processing tank 15 is formed by being integrated, and the processing tank 15 is pivotally supported by the horizontal shaft 12 so as to be rotatable.
[0017]
And the receiving chute | shoot 16 which receives the wash water which finished washing | cleaning the supplied ready-mixed concrete or ready-mixed concrete is installed in the base 11 upper part. Further, when the ready-mixed concrete is supplied from the supply port 16a of the receiving chute 16, the processing tank 15 is pivotally supported on the horizontal shaft 12 so that the supply port 16a faces the charging port 15a of the processing tank 15 described above. It is.
[0018]
Accordingly, when the ready-mixed concrete is dropped from the ready-mixed concrete supply port 16a of the receiving chute 16, the primary receiving tank 13 catches this.
[0019]
The primary receiving tank 13 is provided with a primary screen 13a through which other than gravel passes. Since the eyes of the primary screen 13a are 3 mm square, gravel larger than this can be separated onto the primary screen 13a.
[0020]
And the passage hole 13c is vacant in the predetermined position of the bottom wall 13b of the primary receiving tank 13, and fresh concrete components other than gravel separated from this passage hole 13c by the primary screen 13a fall into the opening of the secondary receiving tank 14. It is.
[0021]
Moreover, the secondary receiving tank 14 is provided with a secondary screen 14a through which other than sand passes. Since the eyes of the secondary screen 14a are 1 mm square, sand larger than this can be separated onto the secondary screen 14a.
[0022]
And the passage hole 14c is vacant also in the predetermined position of the bottom wall 14b of the secondary receiving tank 14, and the treated water after gravel and sand are removed from this passage hole 14c falls to the water storage tank 17. It has become.
[0023]
In addition, a liquid cyclone 18 is installed on the base 11, and a sand pump 19 connects the water tank 17 and the liquid cyclone 18. As shown in FIG. 1, the water further purified by the hydrocyclone 18 is directly supplied from above the secondary screen 14a of the secondary receiving tank 14, or the primary screen 13a or the secondary screen described above. The sand or cement sprayed from the nozzle 20 installed above the next screen 14a and adhered to the eyes of the primary screen 13a or the secondary screen 14a is washed away by water pressure.
[0024]
The horizontal shaft 12 is connected to a telescopic jack 21. By extending the jack 21, the horizontal shaft 12 and the treatment tank 15 connected thereto are rotated. Then, gravel and sand fall from the rotated processing tank 15 to the respective discharge means 22 and 22 and are discharged out of the apparatus 10.
[0025]
As the jack 21, either a hydraulic jack or an electric jack may be used. As shown in FIG. 3, the tip of the jack 21 and the horizontal shaft 12 are connected by a link 21 a.
[0026]
As described above, when ready-mixed concrete is supplied from the supply port 16a of the receiving chute 16, the processing tank 15 is pivotally supported on the horizontal shaft 12 so that the supply port 16a faces the charging port 15a of the processing tank 15. At this time, the jack 21 is in a contracted state.
[0027]
Further, when discharging gravel on the primary screen 13a of the processing tank 15 and sand on the secondary screen 14a to the discharging means 22, 22, the discharge port 15a of the processing tank 15 is directed to the discharging means 22, 22 side. The horizontal shaft 12 is rotated by setting the above-described jack 21 in an extended state so as to face each other.
[0028]
And as shown in FIG. 4, the discharge means 22 and 22 are comprised from the belt conveyor installed in 2 rows, and are inclined upwards toward the back from the front of the base 11 lower space of the ready-mixed concrete processing apparatus 10. As shown in FIG. The rear end protrudes out of the device 10.
[0029]
In addition, it cannot be overemphasized that various embodiment can be taken in the range which does not deviate from the meaning of this invention. For example, in the above-described embodiment, the treatment of sludge water separated by a hydrocyclone is not mentioned, but if the installation location can be secured, a muddy water treatment device is installed, and the treated water separated thereby is generated. It is good also as a structure utilized as washing | cleaning water for wash | cleaning the primary screen 13a or the secondary screen 14a of the concrete processing apparatus 10. FIG.
[0030]
【The invention's effect】
The invention of claim 1 is provided with a primary receiving tank provided with a screen for separating gravel using water and a secondary receiving tank provided with a screen for separating sand using water. In the ready-mixed concrete processing apparatus that separates the gravel and sand from the ready-mixed concrete supplied to the primary and secondary receiving tanks, the primary receiving tank is opened at a predetermined interval in the secondary receiving tank. When the processing tank is pivotally supported on the base by a single horizontal axis and the processing tank is directed upward, the inlet is connected to the raw tank. When facing the concrete supply port and rotating the treatment tank on the horizontal axis , the discharge port of each of the primary receiving tank and the secondary receiving tank is opposed to the respective discharging means side, and gravel and sand in so that to the separated discharge in each discharge means Therefore, it is not necessary to secure a vast installation space for installing multiple processing equipment as in the case of conventional ready-mixed concrete processing equipment, and it is convenient and compact to carry to the construction site. It can be used as a concrete processing apparatus.
[0031]
In the invention of claim 2, a water tank for storing treated water after removing gravel and sand and a liquid cyclone are installed on the base, and the treated water in the water tank is passed through the liquid cyclone. Since it is characterized by the fact that it is used as washing water for washing the screen installed in the primary receiving tank or the secondary receiving tank, it is the primary means for separating gravel and sand even in places where there is no water supply facility Since the screen or the secondary screen can be used without causing clogging, it can be operated continuously, and a ready-mixed concrete processing apparatus capable of improving the processing capacity can be obtained.
[Brief description of the drawings]
FIG. 1 is a front view of a ready-mixed concrete processing apparatus according to the present invention.
FIG. 2 is a plan view of the ready-mixed concrete processing apparatus according to the present invention.
FIG. 3 is an explanatory view showing a state in which the jack of the ready-mixed concrete processing apparatus according to the present invention is extended.
FIG. 4 is a right side view of the ready-mixed concrete processing apparatus according to the present invention.
FIG. 5 is an explanatory view showing a conventional ready-mixed concrete processing apparatus.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Raw concrete processing apparatus 2 Primary collection | recovery apparatus 3 1st sewage tank 4 Sand pump 5 Secondary collection | recovery apparatus 6 2nd sewage tank 10 Raw concrete treatment apparatus 11 Base 12 Horizontal axis 13 Primary receiving tank 13a Primary screen 13c, 14c Passing hole 14 Secondary receiving tank 14a Secondary screen 15 Treatment tank 16 Receiving chute 17 Water storage tank 18 Hydrocyclone 19 Sand pump 20 Nozzle 21 Jack 22 Discharging means

Claims (2)

The base is provided with a primary receiving tank with a screen for separating gravel using water and a secondary receiving tank with a screen for separating sand using water, and these primary and secondary receiving tanks In the ready-mixed concrete processing apparatus configured to separate the gravel and sand from the supplied ready-mixed concrete,
The primary receiving tank is integrally incorporated in the secondary receiving tank with a predetermined interval therebetween to form a processing tank, and the processing tank is pivotally supported on the base by a single horizontal axis. do it,
When the treatment tank is directed upward, its input port faces the ready-mixed concrete supply port, and when the treatment tank is rotated on the horizontal axis , each of the primary receiving tank and the secondary receiving tank are opposed to the discharge port to each discharging means side, ready-mixed processing apparatus being characterized in that the so that to discharge the respective discharge means separates the gravel and sand. In the base, a water tank for storing treated water after removing gravel and sand, and a hydrocyclone are installed,
The treated water in the water tank is used as cleaning water for cleaning a screen installed in a primary receiving tank or a secondary receiving tank after passing through the hydrocyclone. Concrete processing equipment.

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