JP2019107614A - Method and device for mixing and kneading granule/powder and liquid, and normal temperature asphalt material - Google Patents

Abstract

To provide a mixing and kneading method by which granule/powder and a liquid can be uniformly mixed and kneaded without consumption of physical energy and without possibility of pollution of ambient environment.SOLUTION: A prescribed resin-made sealed bag (1), which has flexibility and comprises a leakage prevention valve (3) which prevents leakage of a content to the exterior, is used. A specified quantity of granules (5) and powders are previously encapsulated in the resin-made sealed bag (1). A liquid is added into the resin-made sealed bag (1) via the leakage prevention valve (3), and the resin-made sealed bag (1) is shaken, whereby the granules (5)/powders and the liquid are mixed and kneaded. In the meantime, shaking is performed in such a manner that the resin-made sealed bag (1) is inputted into a rotary drum (9) of which a rotation axis is inclined and on an inner peripheral surface of which plural projections (24) are provided, and the rotary drum (9) is rotated.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a method and apparatus for adding a small amount of liquid similarly to a relatively small amount of granular material / powder and mixing and kneading the same, and an asphalt emulsion is added to the aggregate and mixed · Granules and powders suitable for use in the method of obtaining a room temperature asphalt mixture for paving, adding water to fine aggregate and Portland cement and mixing and kneading to obtain mortar The present invention relates to a kneading method and a mixing and kneading apparatus.

  It is practiced in various fields in the industry to add a predetermined amount of liquid to solid matter such as granular material and powder, mix and knead it, and obtain a uniform mixture, for example, normal temperature for pavement Asphalt mixtures, mortars and the like can be mentioned. The cold asphalt mixture for paving is obtained by adding a predetermined amount of asphalt emulsion to the aggregate which is a granular material and the powdery additive which is added if necessary, and mixing and kneading it. As is well known in the art, asphalt emulsions are composed of bituminous substances such as natural asphalt and petroleum asphalt, water, and emulsifiers such as various surfactants and clays, and the bituminous substances are emulsified and stably liquid at room temperature. It has become. When such an asphalt emulsion is added to the aggregate and appropriately mixed and kneaded, the individual aggregate is covered with the asphalt emulsion. That is, an asphalt mixture is obtained. Such asphalt mixture is filled and compacted in repairing a damaged part of paved road, etc., and bitumen of asphalt emulsion and moisture are separated, and asphalt mixture is hardened with bitumen as a binder. That is, paved roads are repaired. In addition, in order to accelerate the strength and speed of hardening, a filler is added to the aggregate as described in Patent Documents 1 and 2, etc., or a hydraulic inorganic material such as Portland cement is added as an additive in advance. Or a predetermined polymer may be added. On the other hand, mortar is obtained by adding a predetermined amount of water to a fine aggregate such as sand and a cement such as portland cement, and mixing and kneading the mixture, as conventionally known. When the hydration reaction proceeds, it begins to harden after a predetermined time, and strength develops.

Unexamined-Japanese-Patent No. 11-12016 gazette Japanese Patent Application Laid-Open No. 11-280012

  Of the cold asphalt mixture for paving, to which a predetermined additive is added, or mortar, a liquid asphalt emulsion or water is added and mixing / kneading starts a curing reaction. Therefore, these can not be stored in the state of being mixed and kneaded in advance, and it is necessary to mix and knead immediately before using. When mixing and kneading such a mixture, that is, solid matter such as granular material and powder, and liquid, a special mixer is used. This is because it is necessary to uniformly knead in a short time, and the granular material / powder and liquid are charged into the mixer, and the mixer is rotated to forcibly mix and knead. However, there are also problems to be solved regarding the use of the mixer. Mixers have the problem of having to be cleaned after use. For example, when a dedicated mixer is provided as in a batcher plant and mortars of a large number of lots are continuously produced, mixing and kneading can be carried out continuously, so the number of cleaning of the mixer can be reduced. However, depending on the construction site, only a small amount of cold asphalt mixture or mortar may be required. In such a case, a small mixer must be installed at the construction site, and mixing / kneading must be performed, and cleaning must be performed each time mixing / kneading. There is a problem that the cleaning of the mixer is complicated. Furthermore, the water after cleaning, that is, the cleaning drainage needs to be treated as industrial waste, and the cost is increased.

  By the way, for example, with regard to a cold asphalt mixture, if it is a relatively small amount, a product which can be mixed and kneaded by human power is provided as a product. This product is sold as a set of a resin bag containing a predetermined amount of a mixture of granular aggregate and a powdery additive and a bottle containing an asphalt emulsion. The plastic bag is provided in an open state, and when producing a cold asphalt mixture, a bottled asphalt emulsion is injected through the opening. That is, the asphalt emulsion is added to the mixture of aggregate and additives. Close the opening of the plastic bag and hold it by hand to prevent the contents from popping out of the opening. Keep the hand held, lift the plastic bag and shake it vigorously in the air. Ie shake. Then, the mixture of granular aggregate, powdery additive and asphalt emulsion are mixed and kneaded to obtain a cold asphalt mixture. If you use such a product, you will not use a mixer. Therefore, there is no need to wash and it is excellent. However, since it is necessary to mix and knead it manually, it requires physical strength, and the degree of mixing and kneading varies depending on the worker. In other words, it can not be guaranteed whether they are uniformly mixed and kneaded. When the hand holding the opening is released during the shake, the contents may scatter and dust may be scattered to contaminate the surrounding environment. Furthermore, there is a weight limitation for manual mixing and kneading, and the limit is about 5 kg. There are similar problems other than cold asphalt mixtures. For example, if the amount of mortar is relatively small, the mixture can be easily obtained by charging the material and the kneading water into a bucket and mixing and kneading the mixture with a long hand mixer. However, cleaning of the bucket and hand mixer is required. Also, as the dust flies around, there is also the possibility of polluting the surrounding environment, as in the case of the production of the cold asphalt mixture described above. In other words, the problem is recognized.

  An object of the present invention is to provide a method of adding a liquid to particles / powder and mixing / kneading it, and a mixing / kneading apparatus, which solve the problems as described above. Specifically, when a liquid is added to and mixed and kneaded with particles and powder, the physical strength is not consumed, and uniform mixing and kneading can be performed, and there is no risk of contaminating the surrounding environment. It is an object of the present invention to provide a mixing / kneading method which does not need to wash the mixer and does not generate washing drainage, and a mixing / kneading apparatus which can carry out such a method.

  The present invention is directed to a method of mixing / kneading particles / powder and liquid, but in order to achieve the above object, a leak-proof valve having flexibility and preventing leakage of contents to the outside A predetermined amount of granular material or powder is sealed in advance in the resin sealing bag using the predetermined resin sealing bag provided. The liquid is added to the inside of the resin-made sealed bag through a leak prevention valve, and the resin-made sealed bag is shaken to mix and knead the particles or powder with the liquid.

Thus, in order to achieve the above object, according to the first aspect of the present invention, there is provided a predetermined resin sealing bag having flexibility and a leakproof valve for preventing leakage of contents to the outside. A predetermined amount of granular material or powder is enclosed, a predetermined liquid is added to the resin-made sealed bag via the leak prevention valve, the resin-made sealed bag is shaken, and the granular material or the powder is mixed. The method is a method of mixing and kneading particles, powder and liquid by mixing and kneading the mixture and the liquid.
The invention according to claim 2 relates to the method according to claim 1, wherein the shake is provided in a predetermined rotating drum having a rotating shaft inclined and a plurality of projections provided on an inner peripheral surface thereof. A method of mixing / kneading particles / powder and liquid is characterized in that the resin sealing bag is accommodated and the rotation drum is rotated.

The invention according to claim 3 is characterized in that the granular material or the powder is shaken by shaking a resin sealing bag in which the granular material or powder is enclosed and a predetermined liquid is injected and sealed in a liquid tight manner. A mixing / kneading apparatus for mixing / kneading the liquid and the liquid, wherein the mixing / kneading apparatus includes a rotary drum in which the resin-made sealed bag is placed, and the rotary drum has a predetermined rotational axis with respect to a horizontal direction. The mixing / kneading apparatus is configured as a mixing / kneading apparatus of a granular material / powder and a liquid characterized in that a plurality of predetermined protrusions are provided on the inner peripheral surface of the liquid material.
The invention according to claim 4 is the mixing / kneading apparatus according to claim 3, wherein the projections have a rounded surface, and the apparatus is configured as a mixing / kneading apparatus for particles / powder and liquid. Be done.
The invention according to claim 5 is the mixing / kneading apparatus according to claim 3 or 4, wherein the rotating drum has a flat cylindrical shape and the upper surface of the cylinder is closed by a predetermined lid. A ring having a diameter smaller than the inner diameter of the rotary drum in the vicinity of the opening in the rotary drum, whereby the ring is inserted into the rotary drum when the lid is opened The resin-made sealed bag is configured not to pop out from the opening, and it is configured as a mixing / kneading apparatus for particles / powder and liquid.
The invention according to claim 6 is a cold asphalt in which the aggregate which is a granular material and the asphalt emulsion are separately provided, and when used, they are mixed and kneaded to obtain a cold asphalt mixture. In the material, the aggregate is contained in a predetermined flexible resin sealing bag, and the resin sealing bag is provided with a cylindrical leakproof valve with a predetermined length of resin film. And said leakproof valve is adapted to inject said asphalt emulsion into said resinous sealed bag and to prevent the contents in said resinous sealed bag from leaking to the outside. It is configured as a characteristic cold asphalt material.

  As described above, according to the present invention, a predetermined amount of granular material or powder is sealed in advance in a predetermined resin sealing bag having flexibility and a leak preventing valve for preventing the contents from leaking to the outside. A predetermined liquid is added to the inside of the resin-made sealed bag through the leak prevention valve, and the resin-made sealed bag is shaken to mix and knead the particles and the powder and the liquid. That is, by shaking the resin-made sealed bag, the contents, that is, the granular body or powder and the liquid are mixed and kneaded. Therefore, the contents do not leak to the outside at the time of shaking, and mixing and kneading can be performed without contaminating the surrounding environment. In addition, since mixing and kneading do not use a mixer, washing of the mixer is unnecessary, and washing and drainage is not generated. According to another aspect of the invention, the shake rotates the rotary drum by housing the resin sealing bag in a predetermined rotary drum, the rotary shaft of which is inclined and the inner circumferential surface is provided with a plurality of projections. As a result, it is possible to uniformly mix and knead without exhausting physical strength. Furthermore, the weight constraints that occur when manually shaking are alleviated. According to another invention, since the plurality of projections provided on the inner circumferential surface of the rotating drum are rounded, there is no risk of the bag breaking even if the resin sealing bag collides with the projections, and the shake is performed safely. it can. And, according to the invention of the mixing / kneading apparatus which is another invention, the rotary drum has a flat cylindrical shape and the upper surface of the cylinder is an opening which is closed by a predetermined lid. A ring smaller in diameter than the inner diameter of the rotating drum is provided in the vicinity of the opening in the inside, so that the resin-made sealed bag placed in the rotating drum does not protrude from the opening when the lid is opened. ing. Since the ring prevents the resin sealing bag from popping out of the opening, the worker can easily work. In addition, it is also prevented that the resin sealing bag is pinched when the lid is closed. According to yet another invention, a cold asphalt material wherein granular aggregate and asphalt emulsion are separately provided, such that when used they are mixed and kneaded to obtain a cold asphalt mixture The aggregate is placed in a predetermined flexible resin sealing bag, and the resin sealing bag is provided with a tubular leak prevention valve with a predetermined length of resin film, The leak prevention valve is adapted to inject the asphalt emulsion into the resin-made sealed bag and to prevent the contents in the resin-made sealed bag from leaking to the outside. Thus, since a cold asphalt material is provided, when obtaining a cold asphalt mixture, it can be obtained by injecting an asphalt emulsion into a resin-made sealed bag and shaking the resin-made sealed bag. Since no mixer is used, there is no need for cleaning, no industrial waste is generated, and a cold asphalt mixture can be easily produced.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing a resin-made sealing bag according to an embodiment of the present invention, wherein (A) is a perspective view of a resin-made sealing bag containing an aggregate which is a material of a room temperature asphalt mixing section for paving; ) Is an enlarged perspective view of the leak prevention valve provided in the resin sealing bag. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 shows a mixing / kneading apparatus according to an embodiment of the present invention, wherein (a) is a side view of the mixing / kneading apparatus, (b) is a front view of the mixing / kneading apparatus, and (c) is mixing -It is the front view seen about the rotating shaft provided in the kneading apparatus in the rotating shaft direction. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the method of obtaining the normal temperature asphalt mixture for paving using the mixing / kneading apparatus which concerns on embodiment of this invention, The (a)-(e) is a front view which shows a mixing * kneading apparatus in each process. It is.

  Hereinafter, embodiments of the present invention will be described. The method of mixing / kneading particles / powder and liquid according to the present embodiment is a method of efficiently and uniformly mixing a relatively small amount of particles or powder and a relatively small amount of liquid similarly. It can be applied to various particles, powders and liquids. As a typical application example thereof, there can be mentioned a method for producing a cold asphalt mixture used for paving, and the material, that is, cold asphalt material, is an aggregate which is a granular body, an additive which is a powder, and a liquid It consists of an asphalt emulsion. These can be mixed and kneaded by the mixing and kneading method according to the embodiment of the present invention to obtain a cold asphalt mixture. The present embodiment will be described below by taking a cold asphalt mixture as an example.

  The method of mixing / kneading the granular material / powder and liquid according to the present embodiment uses the resin-made sealed bag 1 according to the present embodiment having the structure unique to the present invention. Although the resin sealing bag 1 is shown in FIG. 1A, it is composed of a plastic bag having high flexibility and flexibility, in which particles, powder and liquid are contained. It has sufficient strength not to break even if it is shaken violently in the condition or relatively strong impact from the outside. The resin sealing bag 1 is composed of a bag body 2 and a leak preventing valve 3 described in detail below. The bag body 2 can be formed, for example, from polyethylene terephthalate and polyethylene, and can be formed from nylon and polyethylene, or from polypropylene and polyethylene, when formed from a multilayer plastic film, and is a single-phase plastic film When formed from high-pressure low-density polyethylene or linear low-density polyethylene. Further, since the leak prevention valve 3 does not require high strength but requires relatively high flexibility, it is formed of a single layer plastic film such as high pressure low density polyethylene or linear low density polyethylene.

  In the upper portion of the bag body 2, an opening 2a having a predetermined width is provided. The width of the opening 2a is narrowed, and the leak prevention valve 3 is liquid-tightly fixed to the opening 2a. The leakproof valve 3 is composed of two rectangular resin sheets, which are overlapped as shown in the enlarged view of FIG. It is welded and integrated into the strip. The thin bands indicated by reference numerals 3a and 3a are the welded portions, and the leak prevention valve 3 is thereby formed in a flat cylindrical shape whose upper and lower sides are open. Since this cylindrical resin sheet is fixed to the opening 2a on the outer peripheral surface, the cylinder is crushed and has a shape in which two resin sheets overlap. The cylinder is crushed, but since the resin sheet is open at the top and bottom, when a funnel is inserted inside this cylindrical resin sheet, the liquid is injected from the outside into the resin sealing bag 1 Can. However, when the funnel is removed, the resin sheet has high flexibility, so the cylinder is crushed and flattened, and the inside and the outside of the resin sealing bag 1 are substantially sealed in a fluid tight manner. This prevents the contents in the resin sealing bag 1 from leaking to the outside. In the resin-made sealed bag 1 according to the present embodiment configured as described above, the aggregate 5 which is a part of the normal temperature asphalt material and the additive added as necessary are put in advance. . That is, the granular material and the powder are put in advance in the resin-made sealed bag 1.

  Next, the mixing and kneading apparatus 7 according to the present embodiment will be described. The mixing / kneading apparatus 7 comprises an apparatus main body 8 and a rotating drum 9 as shown in (A) and (A) of FIG. In the present embodiment, the device body 8 has a height of about 40 cm, and a drive mechanism for rotating the rotating drum 9 therein, that is, the motor 11 and the rotation transmission mechanism 12, and a battery 13 for supplying power to the motor 11. And are provided. Although not shown, a controller for controlling these drive mechanisms is provided, and when operated from the operation panel 15 provided on the side of the apparatus main body 8, the rotary drum 9 is rotated at a desired rotational speed. It can be made to At the top of the apparatus body 9, handles 16, 16 for conveying the mixing / kneading apparatus 7 are provided on the left and right. Among the grips 16, 16, one of the grips 16 is provided with a clip 19 via a predetermined spring 18 so that the resin sealing bag 1 can be lifted.

  The rotary drum 9 is inclined so that its rotation axis is slightly upward from the horizontal direction, and in the present embodiment, it is approximately 15 degrees from the horizontal direction. The rotating drum 9 is composed of a cylindrical drum body 21 having an open upper surface, and a disc-like lid 22 for closing the opening of the drum body 21. Since the rotation axis is inclined, the opening of the drum body 21 is Is slightly upward. Therefore, when the resin-made sealing bag 1 is taken in and out of the drum main body 21 from an opening part, it is a structure which is easy to put in and out. FIG. 2C shows a view of the drum main body 21 from the opening with the lid 22 removed, but the inner peripheral surface of the drum main body 21 has a plurality of projections 24, 24. , ... are provided. In the present embodiment, the projections 24, 24, ... have a cylindrical shape. More specifically, the protrusions 24 project in the center direction from the inner peripheral surface of the drum main body 21 by a predetermined height, and the protruding end surfaces are formed into curved surfaces such as dividing a cylinder into two. Three such projections 24 are equally provided. That is, they are disposed uniformly in the rotational direction of the drum main body 21, that is, the central angles are separated from each other by 120 degrees. When rotating the rotary drum 9 with the resin-made sealed bag 1 inserted, the resin-made sealed bag 1 is pushed up to a predetermined height by the projections 24, 24,... When it falls, it will collide with other projections 24, 24,. The end faces of the projections 24 are formed in a curved surface so that the resin sealing bag 1 is not damaged. A ring 25 slightly smaller in diameter than the inner diameter of the drum main body 21 is fixed to the top of such projections 24, 24,. The ring 25 is located just in the vicinity of the opening of the drum main body 21. When the lid 22 is opened with the resin-made sealed bag 1 inserted in the rotary drum 9, the resin-made sealed bag 1 is dropped. It is supposed to interfere. The lid 22 can be fixed by predetermined fixing means 26 in a state where the opening of the drum main body 21 is closed.

  A method of obtaining a cold asphalt mixture by the method of mixing / kneading particles, powder and liquid according to the present embodiment will be described. The resin-made sealed bag 1 in which the aggregate 5 and the like are put in advance is placed on the side of the mixing / kneading apparatus 7 as shown in FIG. 3A, and the upper part of the resin-made sealed bag 1 is placed. Suspend with clip 19 Then, the resin-made sealed bag 1 is in an upright state. As shown in FIG. 3A, the funnel 28 is inserted into the leakproof valve 3 of the resin sealing bag 1. The tip of the funnel 28 penetrates from below the cylindrical resin sheet of the leakproof valve 3. In this state, a predetermined amount of asphalt emulsion is poured into the resin sealing bag 1 through the funnel 28. That is, an asphalt emulsion is added to the aggregate 5 and the like. When the injection is complete, the funnel 28 is withdrawn from the leakproof valve 3. The cylindrical resin sheet of the leak prevention valve 3 is crushed, and the inside and the outside of the resin sealing bag 1 are substantially shut off. Since the asphalt emulsion is added with the resin seal bag 1 standing by the clip 19, an appropriate amount of air also enters the resin seal bag 1 at this time. By containing a predetermined amount of air, the mixing and kneading described below can be carried out efficiently and uniformly.

  The resin sealing bag 1 is removed from the clip 19 and put in the inside of the drum main body 21 in a state in which the lid 22 is opened as shown in FIG. 3 (c). In the resin-made sealed bag 1, aggregate 5 before mixing and kneading, asphalt emulsion, etc. are contained, and there is some fluidity. However, since the ring body 25 is provided in the vicinity of the opening of the drum body 21, the resin sealing bag 1 is prevented from falling from the opening. The drum body 21 is closed by the lid 22. The rotating drum 9 is rotated at a predetermined number of rotations. Then, the resin-made sealed bag 1 is pushed up by the projections 24, 24, ... as shown in FIG. The resin sealing bag 1 pushed up to a predetermined height falls within the rotary drum 9 and collides with the other projections 24, 24. The resin sealing bag 1 is shaken and pushed up and down repeatedly by the projections 24, 24,. As a result, the aggregate in the resin-made sealed bag 1 and the asphalt emulsion are mixed and kneaded. Since the resin sealing bag 1 has sufficient strength and the leak preventing valve 3 maintains liquid tightness, the contents of the resin sealing bag 1 do not flow out and stick to the inside of the rotary drum 9. When the rotary drum 9 is rotated for a predetermined time, the rotation is stopped. Alternatively, a timer function may be provided in the mixing / kneading apparatus 7, the necessary rotation time may be set, and the rotation of the rotary drum 9 may be automatically stopped by time up. The lid 22 is opened to take out the resin-made sealed bag 1. When the resin-made sealed bag 1 is opened by a cutter, a cold asphalt mixture is obtained. Alternatively, a V-shaped notch may be provided in advance at a predetermined position of the resin sealing bag 1, and the notch may be opened and opened.

  In the mixing and kneading apparatus 7 according to the present embodiment, there is a preferable numerical value range. For example, although the inclination angle of the rotation axis of the rotary drum 9 is about 15 degrees from the horizontal, this angle is preferably 0 to 15 degrees. When the angle is increased, the resin sealing bag 1 is less likely to drop when the rotary drum 9 is rotated, and the efficiency of mixing and kneading is reduced. The rotational speed of the rotary drum 9 should be such that the resin-made sealed bag 1 is pushed up and dropped within the rotary drum 9, and if the rotational speed is made too large, the resin-made sealed bag 1 by centrifugal force Does not fall and mixing and kneading are not properly performed. The number of revolutions varies depending on the size of the rotary drum 9, but if the diameter is 36 cm, 44 to 56 revolutions / minute is preferable. The size of the rotary drum 9 and the size of the resin-made sealed bag 1 also have an appropriate range, and the entire volume of the resin-made sealed bag 1 containing contents and air is 45 to 50 of the volume of the rotary drum 9 It should be 87%. At this time, it is preferable that the volume of the contents excluding air in the resin-made sealed bag 1 be 30 to 60% of the volume of the rotary drum 9, and the volume of air in the resin-made sealed bag 1 is Preferably, the volume of the rotary drum 9 is 8 to 35%.

  The method of mixing / kneading the granular material / powder and liquid according to the present embodiment can be variously modified. For example, although it has been described that the resin sealing bag 1 is put in the rotary drum 9 to shake, the resin sealing bag 1 may be put in a container which swings up and down or to the left and right to shake. Alternatively, the resin sealing bag 1 may be shaken by tapping the resin sealing bag 1 from outside with a plurality of relatively soft rods. In any case, the shaking should be carried out by mechanical force, and the particles, powder and liquid can be uniformly mixed and kneaded in a short time. However, it is also possible to perform the shake manually rather than by mechanical force. Since there is no risk of leakage of the contents of the resin sealing bag 1 according to the present embodiment, it is not necessary to hold the opening when lifting it and shaking it vertically and horizontally. Other variations are also possible. In the present embodiment, a cold bituminous mixture has been described as an example of the method of mixing / kneading the granular material / powder and liquid, but the invention can also be applied to, for example, a method of manufacturing mortar. When manufacturing mortar, fine aggregate and Portland cement are put in the resin-made sealed bag 1 beforehand. When mortar is required, a predetermined amount of water is injected into the resin-made sealed bag 1 through the leak prevention valve 3. When the resin sealing bag 1 is shaken by the rotary drum 9, a mortar is obtained.

DESCRIPTION OF SYMBOLS 1 resin-made sealing bag 2 bag main body 3 leak prevention valve 5 aggregate 7 mixing / kneading apparatus 8 apparatus main body 9 rotating drum 16 grip 18 spring 19 clip 21 drum main body 22 lid 24 protrusion 25 ring 26 fixing means

Claims (6)

  A predetermined amount of granular material or powder is enclosed in a predetermined amount in a predetermined resin-made sealing bag having flexibility and a leak preventing valve for preventing the contents from leaking to the outside, and the predetermined liquid is leaked. Granules / Powders / Liquids added to the resin-sealed bags via a prevention valve, and the said resin-sealed bags are shaken to mix and knead the granules or the powder and the liquid. Kneading method.   2. The method according to claim 1, wherein the shake is accommodated in a predetermined rotary drum, the rotary shaft of which is inclined and the inner circumferential surface is provided with a plurality of projections. A method for mixing and kneading particles, powder and liquid, characterized by carrying out by rotating the rotating drum. Shake the resin-made sealed bag in which the granular material and the powder are enclosed and a predetermined liquid is injected and the liquid tight seal is performed, and the granular material and the powder and the liquid are mixed and kneaded. A mixing / kneading apparatus,
The mixing / kneading apparatus includes a rotating drum in which the resin-made sealed bag is placed, and the rotating drum is inclined at a predetermined angle with respect to the horizontal axis, and a plurality of predetermined protrusions are formed on the inner circumferential surface A mixing / kneading apparatus for particles / powder and liquid, characterized in that it is provided.   The mixing / kneading apparatus according to claim 3, wherein the surface of the projection is rounded.   The mixing and kneading apparatus according to claim 3 or 4, wherein the rotating drum has a flat cylindrical shape and the upper surface of the cylinder is an opening closed by a predetermined lid, and the rotating drum A ring smaller in diameter than the inner diameter of the rotating drum is provided inside the opening near the opening, whereby the resin sealing bag inserted into the rotating drum when the lid is opened is the opening A mixing / kneading apparatus for mixing particles / powder and liquid characterized in that it does not fly out of the container. A cold asphalt material wherein granular aggregate and asphalt emulsion are separately provided, such that when used they are mixed and kneaded to obtain a cold asphalt mixture,
The aggregate is contained in a predetermined flexible resin-made sealing bag, and the resin-made sealing bag is provided with a tubular leakproof valve with a predetermined length of a resinous film to prevent the leakage The valve is adapted to inject the asphalt emulsion into the resin-sealed bag and to prevent the contents in the resin-sealed bag from leaking to the outside. material.

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