JPH029433A - Method for feeding mixing water to oscillating mixer - Google Patents

Abstract

PURPOSE:To decrease small agglomerations and involvement of air to facilitate mixing and dispersion by causing dusts produced during mixing in a mixer to be absorbed into the mixing water through a discharge pipe while the mixing water is stored in a liquid feed vessel with a feed water port being closed by a sealing plug. CONSTITUTION:Mixing water 29 to which mixing agents for increasing viscosity and water reduction agents, etc., have been added is stored in a liquid feed vessel A mounted on the upper case of a mixer, with its feed water port 22 being closed. A damper 15 is opened to feed measured cement and fine aggregate into a flexible section 7 and thereafter the damper 15 is closed to effect mixing without feeding water, during which dusts produced thereby is absorbed into the mixing water through a discharge ports 18, following which an open- close plate 21 for feed water hole is raised to open the feed water port 22, whereby viscous mortar is produced and thereafter the damper 15 is opened and carbon fibers are thrown thereinto to be dispersed and mixed uniformly into the mortar and further secondary mixing water is supplied thereto to produce composite mortar having a predetermined consistency, thus preventing scattering of the dusts.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a method for supplying mixed water to a mixer by applying a rocking motion to the bottom of a flexible portion of the mixer.

<Prior art> A flexible bottom is attached to a tilting rotary disk provided on a tilting crank which is rotated by a vertical drive shaft, and a flexible bottom is attached to the bottom of a container fixed to a conventional aircraft body. When mixing by shaking the head of the tilted rotary plate, input various materials to be mixed from the opening of the container with the upper end of the VCrt open. Mixing water is supplied into the mixer for mixing.

<Problems to be solved by the invention> In recent years, the development of new materials based on cement has made remarkable progress, and the properties required for products have become increasingly complex and diverse, such as lightweight and high strength (bending, tensile). products are produced.

Materials with large differences in specific gravity and short carbon fibers,
When adding and mixing alkali-resistant glass fibers, etc., add the materials to be mixed and the mixing water (input water, admixture) to a certain degree and add moisture. If the mixture contains less water, the diameter of the single fibers will be 8~
Carbon fibers with a specific gravity of about 1.2 to 1.9, especially flocculent VC, aggregate into small lumps or dumplings, and alkali-resistant glass fibers untie and form single fibers, VCIk. Due to dripping or damage, the desired mixing cannot be achieved. Therefore, do not put in the mixed material all at once, and perform rocking motion with the top opening open. After repeatedly checking the dispersion state and fluidity of the materials, we mix them together with the rest of the water.

Dust from the upper opening 815 rises from the upper surface opening 815, making the working environment extremely bad.In addition, in the case of materials with high viscosity or low surface tension, air tends to be drawn into the mixture from the ii-b part, making it especially When mixing VC fiber materials, powders with large surface areas, etc., problems occur when air is mixed into -rfl waves. <Means for Solving the Invention> Therefore, the method for supplying mixed water of the present invention In this method, various materials are fed into the mixer through the input pipe connected to the connecting crank of the liquid supply container in which mixed water is retained, and then the flexible part is swung for dry kneading. By blocking the water supply hole with mixed water or a sealing plug, the dust that flies up during dry kneading is forcibly removed through the exhaust hole provided in the exhaust pipe.
9 and adsorbed to the mixed water in the liquid supply container to prevent the powder layer from scattering.

In addition, depending on the dry kneading and mixing time of the various materials to be mixed, water is distributed evenly in the form of threads into the mixing container from the bottom of the container (many water supply holes provided) to create a fluid state with uniform water content and easy dispersion. Since the additive material is introduced directly into the mixer, there are fewer small lumps and breakage of the fibers, and the entrainment of air from the VC opening during mixing is extremely reduced.

<Function> The mixed water accumulated in the liquid supply container and the water supply hole are blocked with a sealing plug, and the dust generated during mixer mixing is adsorbed to the mixed water through the m'r exhaust pipe, and the dust is scattered. Prevent and also mix water? By distributing water in the form of threads inside the mixer, short fibers and fragile materials added to the main material are prevented from being damaged, and mixing and dispersion is facilitated by reducing the entrainment of small lumps and air. It is.

<Example> Fig. 1 is a partial longitudinal sectional front view of an oscillating stirring mixer showing an embodiment of the present invention, and Figs. 2 and 3 are empty, f1! FIG. 3 is a partially longitudinal front view of the liquid supply container showing the water supply situation and the water supply distribution situation.

Figure 5 is an enlarged view showing the opening and closing of the water supply hole. 01 is Um
A rotating frame 2 is installed on the left and right side frames of the body frame about a horizontal axis 1'.

The rotating frame 2 has an opening on its upper surface for protruding into a box for supporting the container 3, and a liquid supply container A is removably placed on the stainless steel peripheral edge 9Vc of the container 3.

At the center of the liquid supply container A, a bellows-type flexible via 14 connected from the lower end of the input hole 13 is connected to a connecting crank 16 and opened.
- is attached to the cross beam provided with the VCC membrane at the bottom of the upper case, and the drive shaft 5' of the motor protrudes into the lower center of the upper case and faces directly upward.A tilted crank 6 is attached to this drive shaft to rotate under its own pressure. ing.

Now, the method of supplying mixed water to a mixer according to the present invention will be described with reference to an embodiment of a composite mortar containing carbon fibers. What does the mixed water referred to here at VC include in addition to liquid admixtures, admixtures and additives in powder form? This shall include those dissolved in input water.

First of all, to enhance the dispersion effect of VC carbon #JM1, V
A thickening admixture (trade name: methylcellulose) is dissolved in the input water, and a predetermined amount of mixed water 29 with 1 ton of water reducing agent added is poured into the water supply hole 22 at the periphery of the upper case of the mixer. 15Vc is stored in the liquid supply container A placed on it.

Next, put the material meter into the bellows vibrator 14'? After opening the connecting flange 16 of the liquid supply container that is integrally connected, the cement and fine aggregate containers that have been weighed in advance according to the recipe table are opened, and the weighed materials are transferred to the bellows pipe. It passes through 14° Kuura 17Y and is fed into the flexible part 7 of the mixer.

At this time, the outer sleeve 19 of the front tube is kept at a fixed position so that the official material does not leak out from the exhaust hole 18, so that the exhaust hole 18 is closed.

Then, close the f/par 15 again, support the exhaust hole 18 of the outer sleeve 19 with the spring 24Vc, and circulate the air through both exhaust holes 18, and then pour the mixed water 2 that has been measured in advance
9 from the water supply port 25 of the water supply hole opening/closing plate 21 to the liquid supply container A
Turn on Vc and then operate the oscillating mixer? When starting and performing 7 dry kneading, various materials in the mixer are accelerated/diffused and mixed in the direction of the tom.

The dust generated in the mixing container due to this is removed from the water supply hole 2.
2 and 7 are blocked, the food particles will soon pass through the front cylinder 17 and be adsorbed into the mixed water through the exhaust hole 18 of the outer sleeve.

While repeating this ajVC and adsorbing it to the water surface without scattering it to the surroundings, the 9 removable fork 2 (9) is completed.
When the water supply hole opening/closing plate 21 is raised, the sealing plug 23
The water supply hole 22, which had been blocked by When water is supplied to the position, lower the water supply hole opening/closing plate 21 and close the sealing plug 2 again.
When the water supply hole is closed in step 3, when the primary mixed water has finished spraying, Vcr
i The mixed water increases the water content of the mortar, resulting in a highly fluid and sticky mortar 32.

As the fluidity increases, the generation of dust gradually decreases and almost no dust is generated.

Next, when Gumper 15 is opened and short cotton-like carbon fibers are introduced into the mixer, the carbon fibers adsorbed by the highly fluid mortar are drawn into the movable mortar with high viscosity and high circumferential speed, and are disintegrated one after another into single fibers. It is evenly dispersed and mixed into the mortar while being mixed.And finally, a water supply hole is installed to supply the remaining secondary mixed water? When the mixer is opened again and mixed water is sprinkled inside the mixer, a composite mortar with a predetermined consistency in which carbon ash is evenly dispersed and mixed is created.

When the mixing is finished, stop the operation of MePf- and mix the mixed composite mortar? For discharging, the container 3 is raised from the upper cylindrical body 8 to a standby position where the container 3 can be turned over by lifting it with a hook 20 (attaching and removing the surroundings to the liquid supply container shown in FIG. 3).

Next, when the reversing handle 12 shown in FIG. After stopping the operation, turn the handle 12 in the opposite direction to return the rotating frame to the 2tLEq position, and then move the liquid supply container A, which was waiting in the standby position, by lowering the attaching/detaching fork 20 and moving around the container 3. When the lid of the 9VC is placed, the bellows pipe will also return to its original position. Then, after opening the bar 15 of the connecting flange 16, for the next mixing, the various materials measured by the scale are put into the flexible part of the mixer, and the above-mentioned mixing operation is repeated. .

On the other hand, the carbon fiber-containing composite mortar discharged into the receiving container is sent to a molding process and made into a product.

Above is the carbon fiber mortar using the oscillating stirring mixer according to the present invention! We have explained one example of how to supply mixed water to the mixer during mixing, but depending on the type of the base material of the mixed material, the type of fiber material to be added, the admixture, the degree of softness and hardness of the mixture, and the recipe The time required for rocking rotation speed, mixing time, dry kneading, and water supply time differs greatly. Therefore, unlike aggregates and alkali-resistant glass fibers, which are weak and easily damaged, they untie, bend, or break. Is it possible to add the ingredients just before the end of mixing and disperse them in a short time, or to supply water and spray at the same time as dry kneading starts? For mixtures that require water supply over a long period of time, the diameter of the water supply hole in liquid supply container A may be changed, or the water supply time may be changed. It is advisable to appropriately select the mixed water supply method according to the materials to be used, such as by interposing a perforated plate 26 for adjustment so as to obtain a water supply time corresponding to the mixed substance. Dispersant and water reducer for water sound.

A humidified state with a moisture content of - can be obtained by spraying water approximately evenly onto the material being mixed from the water supply hole of the liquid supply container, which stores mixed water in which admixture materials such as thickeners are dissolved. Even carbon fibers with extremely fine fiber diameters and fibers with light specific gravity can be uniformly dispersed without agglomerating into small lumps.

Also, since the water supply hole is in the base, there is less dust scattering and less air being drawn into the mixing process.

[Brief explanation of the drawing]

FIG. 1 is a partially longitudinal front view showing an embodiment of the present invention;
Fig. 3 and Fig. 3 are partially vertical front views showing the dry kneading situation and the water supplying situation, and Fig. 4 is a partially vertical front view of the swinging mixer with the inverted nine liquid supply container raised. Figure 5 is a diagram showing the opening and closing of the water supply hole, Figure 6 is a detailed diagram of the exhaust hole, Figure 7 is an example of an adjustment plate that adjusts the water supply time, and Figure 8 is a diagram showing the conventional water supply situation. This is the cause shown. A...Liquid supply container, 10...Stirring bar, 11...Adjustment bolt, 13...Rubber 7-ru, 15... f pumper 18...
Exhaust hole, 23...Sealing plug, 27...Carbon collar, 28...Water supply hose.

Claims (3)

[Claims] (1) In a method in which the mixing tank of a mixer has a rigid upper part and a flexible part below, and the bottom of the flexible part is given a rocking motion for mixing, the upper rigid part A liquid supply container that also serves to prevent dust from scattering is removably placed on the periphery, and mixed water is retained in the liquid supply container so that dust generated during mixing is adsorbed to the mixed water. A method for supplying mixed water to a mixer, characterized by uniformly distributing the mixed water into the mixer during dry kneading or after completion of dry kneading. (2) A method for supplying mixed water to an oscillating mixer according to claim 1, characterized in that the mixed water is divided into primary water and secondary water and then distributed. (3) A method for supplying mixed water to a mixer according to claim 1 or 2, characterized in that the water supply time is adjusted by interposing a perforated plate for adjusting the water amount for adjusting the water supply time of the mixer.