JPS60178006A - Method and device for preparing and executing cement kneadedmaterial such as concrete - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and apparatus for adjusting cement mixed materials such as concrete, and a comparatively simple and compact configuration for controlling material mixing and mixing of cement mixed materials such as in tunnels. The present invention aims to provide a method and an apparatus for effectively and appropriately carrying out the double mixing method and spraying to obtain a rational mixer. It is.

The adjustment and construction of cement mixtures such as concrete has been widely practiced for a long time, but when mixing and adjusting the mix of such mixtures for industrial purposes, aggregate, In particular, it is necessary to appropriately determine the mixing ratio of fine aggregate and cement powder, the amount of water added to these aggregates and cement powder, etc., in order to obtain a rational mixture. If they cannot be obtained properly, separation, pleating, workability, and other construction conditions cannot be obtained appropriately, and the construction must be uneconomical. Therefore, in order to avoid these disadvantages and to adjust the mix of mixed materials with industrially uniform characteristic values, it is necessary for specialized engineers to carefully perform measurement operations and control the mix adjustment. From an industrial perspective, crosstalk adjustment including operation management must be done by machines. By the way, with regard to the above-mentioned blend adjustment, it is necessary to reduce each material by 1, and following the 81st generation, the mixing machine I1 is charged, there is no driving sound, and the kneading obtained in this way is , the object is sent to the construction mechanism for construction, but for this series of operations it is essential to use magnets and other electrical equipment and use electrical signals to send to those electrical equipment. (This type of mixed-air equipment system can malfunction under humid conditions such as inside tunnels.) This type of equipment is highly prone to water damage, and the use of water for hunting is a must for this species. The frequency of failures is high when adjusting the kneaded material. In addition, when adjusting the composition as described above, it is essential to charge the Ci valley charge in an amount of =F as in a crosstalk mechanism, but such a total of 1! Regarding charging, each material is first charged into a hopper at the top of the rock platform, then dropped into a weighing device to be weighed, and then fed into the mixing mechanism below, under conditions that utilize gravity. Although this type of mechanism is preferable for operation in a tunnel, it is inconvenient to operate inside a tunnel or within a building floor, as it forces the user to use Takayasu Tsutomu for sake. Of course, it is also possible to operate the above-mentioned weighing equipment on the bottom or floor of the tunnel in the same way as the crosstalk mechanism without using multiple layers as described above, but in order to do so, it is necessary to send the material once discharged from the equipment upward again. This necessitates equipment to be loaded into the next mechanism, and requires an all-in-one system to operate the equipment, complicating its configuration and increasing the possibility of electrical failures as described above. It is inevitable that this will lead to an increase in sexuality. Of course, it is also possible to mix the mixture outside the tunnel and mix it with two people, but in this case, there is a risk of time loss due to a slight mistake in the underground work, and a water oxidation reaction may occur in the mixed concrete. Appropriate construction will not be possible. Therefore, it is most preferable to adjust the kneaded material according to the progress of the work in a mine, etc., and this is the reason why appropriate construction can be carried out smoothly.

The present invention was developed after repeated efforts in view of the above-mentioned circumstances.
Each material for preparing a cement mixture such as concrete is transported to the construction site by a material transport means divided into batches, and all batches of each material are cut out from the material transport means. This paper proposes a method for adjusting cement crosstalk such as concrete, which is characterized by sequentially supplying it to a type crosstalk means and a construction means to adjust the crosstalk and apply it, and spraying means can be used as the construction means. Also, for kneading, add a part of the blended water and mix it, then add the cement powder and mix it further.
The remainder of the formulation water can then be added to continue cross-talking. Further, in the present invention, there is provided a material transport means provided with a material receiving hopper for preparing a cement mixture such as concrete divided into each batch, and a cross-conducting means formed separately from the material transport means, and a construction method. have the means,
The present invention proposes an apparatus for controlling mixed materials such as concrete and cement, which is characterized in that a cutting means is provided for the material receiving hopper in the material conveying means, and the cutting means is connected to the mixing means described above. .

That is, specific embodiments of the present invention will be described with reference to the attached drawings.The present invention includes a material conveying means A as shown in FIG.
The vehicle body 2o equipped with wheels 21 is a truck-shaped conveyance means, and the hopper 1 mounted on this is a storage section 1a, ib, etc., which is divided into batches.
...1n is formed by dividing it by material, and in the illustrated one, there are aggregate storage parts 1a/, 1a", ib', 1b" in the center.
, , , , 1 n/, 1'n"f: Cement storage portions 1a"', 1b"'... on both sides.
1n"' are provided oppositely, but either one of these cement storage parts may be used as a storage part for other additives (water reducing agent, air entrainment agent, etc.).Aggregate storage parts 1a', 1
a", 1b', 1b"...In', in" may be divided into one part as a fine aggregate accommodating part and the other as a coarse aggregate accommodating part. It is possible to store the aggregate and coarse aggregate in a mixed state in both.However, at the bottom of the hopper 1 as described above, the storage portions ia, ib...
A cutting means 18 is provided along the arrangement direction of the hoppers 1 and 18, which is shaped like a belt conveyor.
Each of the storage chambers 1a, 1b, . . . 1n is provided with a damper 11,113 as shown in FIG. That is, the relatively large cylinder 12 is placed in the housing portion 13'', 1b.
"'...1n"' is for opening and closing each of the cylinders 13 and 11. The operating rod of the cylinder 13 is connected to the damper 11, and a damper 118 is provided at the tip of the damper 11.
and the housing portions 1a/, 1b'...
...Small protrusion 14 that joins and closes the bottom front of 1n/
are formed at the tip of the damper 11a, and housing portions 1a/, 1b'...1n/ or 1a", 1b
It locks and closes the front partition wall of ", . . . 1n", and the housing portions 1a', 1b' . . . 1
A small protrusion 15 is formed on the front side of the damper 11at to hold it in the pulled out position, and as shown in Fig. 2, the cylinder 12 is retracted and the cylinder 13 is extended. In this case, the damper 11.11a closes the bottom of each housing part, but when only the cylinder 12 extends from this state, the damper 11 slides and closes the bottom of each housing part 1a',
1b' . . . 1n' are opened to throw out the stored aggregate, and the small protrusions 14 are locked to the damper 118. Furthermore, when the cylinder 13 is retracted in this state, the damper 118 also slides together with the damper 11 to open the housing portion 1a"' or 1b"' . . . 1n"'.

Regarding closing, there is another locking part 15 on the front side of the damper 11.
is provided, and when the damper 11 is extended, the damper 11a is also extended and the respective housing portions are closed.

For the material conveying means A as described above, a crossing means B as shown in FIG. The cut material is received in the crosstalk chamber 2. A water tank 22 and an admixture tank 23 are connected to the mixing room 2 via a metering mechanism 24, and in this embodiment, a first pump 25, a second pump 25.
25a are attached, and pumped water from these pumps 25 and 25a is introduced into the crosstalk room 2 via the respective metering mechanisms. The admixture in the admixture tank 23 is appropriately guided to the mixing chamber 2 by a pump 26.

The kneading chamber 2i-1: is a batch type, in which the raw materials and water supplied as described above are mixed, and the auJ port 28 is provided with a continuous transfer means 28 such as a screw conveyor. The continuous transfer means 28 has a storage tank 29f on the base end side, which stores the cement mixture to be formed and discharged in batches, and sequentially and continuously sends out the mixed cement.

The construction means C may generally be a chute in the case of simply pouring. The one shown in Fig. 3 shows a case where a spraying mechanism, which has become increasingly popular in recent years, is adopted as a construction means, and for this purpose, a Kotsubrella F-30 is attached and a nozzle part 31 is installed in series. Then, the mixed materials sequentially supplied as described above are fed under pressure from the compressor 30 to the high-pressure air nozzle section 31, and spraying is carried out. Particularly when carrying out the double mixing method as described in section 7 above, the blended water from the water tank 22 is introduced into the vicinity of this nozzle part 31 through the port 32, that is, in the mixing room 2, only the primary water is mixed. Regarding the supply of materials to the mixing chamber 2, firstly, only the damper 11 in FIG. The primary water is allowed to adhere evenly to the entire aggregate, and then the damper 118''k is opened and cement powder is charged and kneaded, resulting in a mixture of aggregate and cement powder made only of primary water.

It is clear that if this mixed material is sent to the nozzle section and sprayed while adding secondary water, spraying work can be achieved by double mixing.

However, in the present invention, the above-mentioned cross-talking means B is formed separately from the material conveying means A, and a predetermined material composition relationship is accurately obtained in relation to the cutting-out mechanism 18, and the cross-wiring means B itself is continuous. Regardless of the method, it is possible to simply accept a predetermined amount of divided raw materials as a batch type, making it sufficiently compact. It is also possible to carry out construction using the wet method using light spectroscopy.

In other words, even if the entire amount of blended water is added in the mixing chamber 2 and the mixing material is highly viscous, the distance between the mixing chamber 2 and the spray nozzle 31 may be approximately 1.0 to 71j, or at least within 50 m. The restrictions on pumping distance under the Act will be lifted. Note that if the mixed water is added only through the hose 32, a dry method can also be carried out.

Since the material transport means A is a transport means such as a vehicle or a trolley, the charging of materials into the hopper 1 described above must be carried out at a location such as a raw material yard that is sufficiently far away from the construction site. Obviously, this charging takes place from the sand storage tank 41, the gravel storage tank 42 and the cement storage tank 43 via metering devices 44,45. The specific equipment for charging such materials is a through hole shown in FIG. 4.5, in which the above-mentioned storage tank 41.
42 and 43 are provided, and a measuring device 44 or 45 is positioned between the material conveying means A and the storage tanks 41 to 43, and measures the material lifted and supplied to the storage tanks 4N41 to 43 by the conveyor 49. and charge it. Of course, the measurement can be carried out by weight, but it is also possible to follow the volumetric method, and the one shown is based on this volumetric method, and the measuring device 44, 45 is about 0.5 m3. The material transport means A is moved along the length direction of the material transport means A by a rail 47 as shown in FIG. By moving along the direction, each storage section 1a in the material conveying means A as described above is removed from the discharge port at the bottom of the scale.
/ to 1n' or 1a/ to 1a"'. The chute 48 charges both sand from the storage tank 41 and gravel from the storage tank 42 into the measuring device 44 or 45. do.

The material conveying means A shown in FIG. 4.5 is of the form of a trolley that runs on rails, and the material conveying means A1, the kneading means B, and the construction means C using the trolleys that run on such rails are separately provided in a sixth embodiment. ~8. That is, the fact that each material is divided into batches in the material conveying means A is similar to that shown in Figs. 1 to 3, but in the one shown in Figs. The above-mentioned housing parts 1a', 1a", 1b',
1bt/ ,, ,,, i n', 1n" and 13"
′, 1a”/ ,,, ,・.

1n"' and 1n"' are arranged, and each accommodation section is located on a narrow carriage, so that it can appropriately enter into narrow tunnels, but the other structural relationships are as follows. 1
- Same as the one in Figure 3.

As shown in FIGS. 7 and 8, an operating cylinder 19 is provided for each housing section to open and close the damper or gate provided at the bottom of each housing section. It opens and closes as appropriate according to the instructions of

The crosstalk means B is fed by the cutout means 18, and the front end of the cutout means 18 is lifted upward and dropped into the crosstalk chamber 2, but the configuration of the crosstalk means B itself is as follows.
It may be similar to the one in Figure 3.

As for the construction means C, any spraying means may be used, and other pouring means, pouring means, etc. may also be used.

Further, the present invention can be implemented as shown in FIG. In other words, whereas what is shown in Figures 1 to 3 shows the full width and length of hopper 1 divided into batches, in the case of this Figure 9, the half-load of hopper 1 is divided into batches. The remaining half-load is stored in a storage section 111. which is not partitioned into batches. IQ, and the housing section 1 a/, l b' divided in this way
------・I n' and 1a", 1b"...1
0'' is the same as above that sand and cement are stored separately, and the first belt conveyor 188t is connected to the bottom of the sand and cement.
- Generally, fine aggregates such as sand and coarse aggregates such as gravel and crushed stones are stored in the provided and undivided storage portions tp and tq, which are transferred to the second belt conveyor 18b.
e and cut out. The first belt conveyor 18a is connected to the crosstalk means 2 and is connected to the first to third belt conveyors described above.
As in the case shown in the figure, the cross-conducting operation is applied to each batch, and the second belt conveyor 18b delivers a predetermined amount depending on the opening degree of the damper provided on the delivery side of the storage portions ip, 1(l). This is air-powered through the dry pressure-feeding means 5, and sent to the construction means C, such as a spray nozzle, together with the mixed particles pumped from the kneading means 2, to perform the desired construction. It is clear that by adopting this, the configuration of a part of the hopper provided like a trolley can be made relatively simple, and moreover, the storage sections 1 a/, 1 b/ . . . 1 Cut out using n/ and 1a", 1b"...1n",
By using a highly precisely kneaded material in the mixing means 2, the same effects as described above can be obtained.

In addition, in the case shown in FIG. 9, if a smaller and simpler one is particularly desired, as shown in FIG.
It is possible to omit the partitions for each batch of cement powder.
0kg) is placed in the storage bag, so in this case, the packaging bag itself containing a predetermined amount is used for weighing purposes, and the predetermined number of visual bags is The amount of cement is automatically measured by charging the cement according to the amount of cement.
...1 The amount of sand to be cut out by n/ may be determined for each batch. That is, in this case, each housing section ia', lb'...1 n/ and 1a'', 1
By making it possible to select an appropriate opening state of the damper 11 at the bottom without fully closing or fully opening the belt conveyor 18a as a cutting means. By driving, it is possible to obtain a good compositional relationship. Predetermined amount of cement for each batch
It is also clear that the number of ffl bags may be determined and implemented.

According to the present invention as explained above, materials for preparing cement mixed materials such as concrete are carried to the construction site by means of material conveyance classified into batches, and the materials are sequentially transferred to batch type mixed materials at the construction site. Since it is supplied and mixed, there is no need to measure or mix the materials at the construction site.In other words, the material can be accurately mixed by cutting out and kneading the materials from the compartments for each batch. It is possible to easily and appropriately obtain the mixed wires, and it is possible to easily and appropriately obtain the mixed wires, not only for general mixers, but also for preparing the mixers using a special and rational double mixing method, or for spraying them. In conjunction with this, it is possible to simplify and compact the mechanism at the construction site and make it easier to operate, thereby achieving efficient and accurate construction. Since it is not transported to a site, it can always respond immediately to the situation at the site without any time loss, and it can perform preferable construction without deteriorating the quality characteristics of concrete, etc., so it is highly effective industrially.
It is J.

[Brief explanation of the drawing]

The drawings show embodiments of the present invention, and FIG. 1 is a perspective view showing one example of the explant conveyance means according to the present invention, and FIG.
Fig. 3 is an explanatory view of each means according to the present invention at 1°Ci; Fig. 4 is a side view of one example of the charging means; Fig. 21rJ5 is a front view of the same, Fig. 6 is a plan view showing another embodiment of each means according to the present invention, Fig. 7 is a side view thereof, and Fig. 8 is a partial view of the hopper. The front view, FIG. 9, and FIG. 7M10 are respectively plan views showing other embodiments of the line-by-row transfer means according to the present invention. In these drawings, 1 is a hopper, 1 a,
1 b, 1 c-...-1n are the storage chambers, 111
1a', l/, 1t5.1 f, 1 b#, , ,
,, 川1 d, I II', i n#u'cO) Accommodation-H12tj [JH! , 3 is the construction part 111, lla is the damper, 12.13 is the operation cylinder, 14.15.
16 is a small protrusion, 18.18a, 1llb are cutting means,
22td water IX tank, 23 is a mixing Oki J tank, 24 is a metering tank, 25, 25a, 26 are pumps, 28 is a transfer means, aO is a compressor 81 is a spray nozzle. Patent Applicant Envoy Toba Inventor Ito Tobu Dokai 1) Sei - No. 4 Rη

Claims (1)

[Scope of Claims] 1. Materials for adjusting cement mixed substances such as concrete are delivered to the construction site by means of material transport means divided into batches, and each material cut out from the material transport means is processed in batches. 1. A construction method for preparing a cement mixed material such as concrete, which comprises sequentially supplying the material to a mixing means and a construction means to adjust the mixing and then constructing the material. 2. A method for adjusting and constructing cement mixed materials such as concrete as set forth in claim 1, which uses a spraying means as a construction means together with a kneading means, adjusts the crosstalk by the crosstalk means, and then sends it to the spraying means for spraying construction. . 3. Adding aggregate and a part of blended water to the kneading means, performing a mixing operation, adding cement powder and further mixing, and then adding the remaining blended water to continue mixing. Adjustment construction method for cement mixed materials such as concrete described in Section 1. 4. A material transporting means provided with a material receiving hopper for preparing a cement mixture such as concrete divided into each batch, and a kneading means and a construction means formed separately from the material transporting means, 1. An apparatus for adjusting and constructing cement mixed materials such as concrete, characterized in that a cutting means is provided for a material receiving hopper in a material conveying means, and the cutting means is connected to the above-mentioned mixing means. 5 It has a spraying means as a construction means as well as a kneading means,
Concrete or the like according to claim 4, wherein the mixed material discharged from the mixing means is received in a storage chamber formed at the base end of the continuous transfer means, and connected to the spraying means via the continuous transfer means. Adjustment equipment for cement mixture. 6. A construction device for adjusting a cement mixture such as concrete as set forth in either claim 4 or 5, in which the material conveying means, kneading means, and spraying means are automatically operated on the same operation panel. . 7. The apparatus for preparing cement mixture A such as concrete according to claim 4, wherein the material conveying means, the mixing means and the spraying means are respectively provided on separate carts. 8. The construction equipment for adjusting a cement mixture such as concrete according to claim 4, wherein the material conveyance means is provided on a self-propelled vehicle body such as a truck (6°