JPH07116496A - Water supply - Google Patents

Abstract

(57) [Abstract] [Purpose] Even if the amount of water supply is increased, it is difficult for the amount of water supply to vary across the width of the water supply device. [Configuration] First storage tank 5 for storing water 3 from a water supply source 4
And a second storage tank 6 for storing the water 3 overflowing from the first storage tank 5 over the first dam plate 5a is connected to the first storage tank 5 and can communicate with the second storage tank 6. The water 3 which is provided with the communication part 6a and stores the water 3 flowing in from the second storage tank 6 through the communication part 6a and which has passed the second dam plate 7a
The third storage tank 7 that overflows the manufacturing belt 2 over the width direction is continuously provided to the second storage tank 6, and the first dam plate 5
The height (C) of a is set to be substantially the same as the outer dimension (B) in the depth direction from the first storage tank 5 to the third storage tank 7, and the height (A) of the second dam plate 7a is set. , 1/3 to 5 / of the outer dimension (B) in the depth direction from the first storage tank 5 to the third storage tank 7
The value is set to 6 times.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water supply device for supplying water to a dry material in a manufacturing process of a dry manufacturing method such as a roofing material and a wall material, and more specifically, it is mounted on a manufacturing belt. The present invention relates to a water supply device for supplying water for curing on a powdery hydraulic material conveyed in a state.

[0002]

2. Description of the Related Art When a water supply device of this type is installed in a dry manufacturing line, the width of the device is determined by the manufacturing belt, and the depth of the device is as shown in FIG. Since it is provided on the upper part of the manufacturing belt 2, it is determined in consideration of not taking a large plane space. Further, the height of the device is set so that the amount of water overflowed from the device is not disturbed. In such a technical background, conventionally, as a water supply device of this type, as shown in FIG. 4, a first storage tank 25 for storing the water 3 from the water supply source 4 is provided, and the water is supplied from the first storage tank 25. A second storage tank 26 that stores the water 3 that overflows beyond the first barrier plate 25a is provided continuously to the first storage tank 25, and includes a communication portion 26a that can communicate with the second storage tank 26, and The third storage tank 27 that stores the water 3 flowing from the second storage tank 26 through the communication portion 26a and overflows the water 3 that has passed over the second barrier plate 27a onto the manufacturing belt 2 in the width direction. The second weir plate 2 is provided continuously to the second storage tank 26.
The ratio of the height (A) of 7a, the outer dimension (B) in the depth direction from the first storage tank 25 to the third storage tank 27, and the height (C) of the first dam plate 25a. , A: B: C = 1:
Some were set to 3.1: 1.1.

[0003]

According to the above-mentioned conventional water supply device, when supplying a normal water supply amount (for example, about 800 liters per hour), it is possible to supply water substantially evenly in the width direction. However, for example, in order to increase the production speed in the dry production method, for example, when the amount of water supply per unit time is increased to about 1.4 times (1100 liters / hour) of the normal amount, the water supply device is There is a problem that the flow of water is disturbed and the amount of water supply in the width direction of the water supply device varies with the disturbance. If the amount of water supplied in the width direction varies, for example, the water content of the hydraulic material on the manufacturing belt becomes uneven, which may adversely affect the physical properties of the product.

Therefore, in view of the above-mentioned drawbacks, an object of the present invention is to provide a water supply device in which variations in the water supply amount across the width direction of the water supply device do not easily occur even if the water supply amount is increased.

[0005]

To achieve this object, the water supply device of the present invention is characterized in that a first storage tank for storing water from a water supply source is provided, and the first storage tank is connected to the first weir. A second storage tank for storing water that overflows beyond the plate is provided continuously with the first storage tank, and has a communication portion that is capable of communicating with the second storage tank, and the second storage tank is provided through the communication portion. While accommodating water flowing from the tank, a third accommodating tank that overflows the water over the second weir plate over the manufacturing belt in the width direction is continuously provided in the second accommodating tank, The height (C) is set to substantially the same value as the outer dimension (B) in the depth direction from the first storage tank to the third storage tank, and the height (A) of the second dam plate is set to Outer dimension (B) in the depth direction from the first storage tank to the third storage tank
1/3 times to 5/6 times the value.

[0006]

According to the characteristic configuration of the water supply device of the present invention, the first storage tank, the second storage tank, and the third storage tank are connected in the depth direction,
Since the height (C) of the first dam plate is set to be approximately the same as the outer dimension (B) in the depth direction from the first storage tank to the third storage tank, the first storage tank It is possible to increase the capacity of the first storage tank as compared with the conventional one without increasing the outer dimension in the depth direction from the first storage tank to the third storage tank, and as a result, the amount of water supplied from the water supply source. The cushioning property with respect to is improved, and it becomes possible to overflow water from the first dam plate in a more uniform state.

Further, the height (A) of the second barrier plate is 1/3 to 5/6 times the outer dimension (B) in the depth direction from the first storage tank to the third storage tank. Since it is set to a value, the flow path length in the second storage tank / third storage tank does not increase without overflowing the second barrier plate and unnecessarily increasing the drop of water supplied onto the manufacturing belt. It is possible to realize an increase in water supply and to supply water in a stable state.

As a result, it is possible to increase the amount of water supply per unit time while maintaining a stable amount of water supply in the width direction without changing the plane space, as compared with the conventional one.

[0009]

Therefore, according to the water supply device of the present invention, even if the amount of water supply is increased, it is possible to prevent variations in the amount of water supply across the width of the water supply device, and to reduce the quality of the product on the production line. It is possible to improve the operating rate and productivity in the absence of this.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. In the drawings, the parts indicated by the same reference numerals as those in the conventional example indicate the same or corresponding parts.

FIG. 2 shows a production line R for a fiber-reinforced cement board for roof, which is equipped with the water supply device T of this embodiment.
Manufacturing in which a material supplying device 1 for supplying a powdery hydraulic material M composed of cement, silica, reinforcing fibers or the like in a dry state is provided, and the powdery hydraulic material M supplied from the material supplying device 1 is received and conveyed in a line. The belt 2 is provided and the manufacturing belt 2 is provided.
The water supply device T is installed in the upper part of the.

The powdery hydraulic material M is placed on the manufacturing belt 2 with a substantially uniform thickness distribution, and in that state, the manufacturing belt 2 conveys the manufacturing line R to the water supply device T.
When approaching the lower part of the above, the hardening reaction is accelerated by receiving a substantially uniform supply amount of water 3 from the water supply device T in the width direction of the manufacturing belt 2. And press / cutting /
After undergoing various post-treatments such as curing and painting, it is commercialized as a fiber-reinforced cement board for roof.

As shown in FIG. 1, the water supply device T is constructed by integrally assembling metal plates in a box shape,
The first storage tank 5 for storing the water 3 from the water supply source 4 is provided, and the second storage tank 6 for storing the water overflowing from the first storage tank 5 over the first dam plate 5a is the first storage tank. Tank 5
Is connected to the lower part of the second storage tank 6 and is provided with a communication portion 6a capable of communicating with the second storage tank 6, and stores the water 3 flowing in from the second storage tank 6 through the communication portion 6a. A third storage tank 7 that overflows the water 3 that has passed over the plate 7a onto the manufacturing belt 2 in the width direction is connected to the lower portion of the second storage tank 6, and the height C of the first dam plate 5 is set. , The outer dimension B in the depth direction from the first storage tank 5 to the third storage tank 7 is set to be approximately the same value, and the height A of the second dam plate 7a is set from the first storage tank 5 to the above. The value is set to about 5/6 times the outer dimension B in the depth direction up to the third storage tank 7. Although not shown in the drawing, the water supply device T is supported and fixed at a fixed position by a fixing member that is fixed to the upper portion of the manufacturing belt 2 so as to be separated from the manufacturing belt 2 by a predetermined distance.

The height A of the second weir plate 7a, the outer dimension B in the depth direction from the first storage tank 5 to the third storage tank 7, and the height C of the first weir plate 5 The following is a detailed description of: and A: B: C = 2.5: 3.2: 3.

A plurality of V-shaped notches 8 having a notch shape are continuously provided along the width direction of the manufacturing belt 2 at the upper end of the second dam plate 7a. By providing the cutout portion 8, the overflow flow rate of water that exceeds the second dam plate 7 a can be dispersed substantially evenly in the width direction of the manufacturing belt 2. Incidentally, when the second barrier plate 7a is formed in a straight line without providing the cutout portion 8 at the upper end portion,
The water flowing over the second weir plate 7a is affected by the flow resistance with the side wall of the water supply device, so that the flow rate becomes smaller toward the side wall side, and the overflow flow rate tends to become nonuniform. Further, between the lower end portion of the second barrier plate 7a and the manufacturing belt 2,
A guide plate 9 that guides the overflow flow onto the powdery hydraulic material M is integrally provided in a state of being connected to the second dam plate 7a. At the lower end of the guide plate 9, a belt-like felt 10 extending in the width direction of the manufacturing belt 2.
Further, vertical grooves 11 are separately provided on the water flow lower surfaces of the second dam plate 7a and the guide plate 9 from the groove lower end of each notch 8 to the felt 10. Therefore, the water flowing down from the cutout portion 8 is guided to the felt 10 through the vertical groove 11 and permeates down in the felt 10, and is adjusted to have a uniform flow amount along the width direction of the manufacturing belt 2. In this state, the powdery hydraulic material M is supplied.

In the water supply device T of this embodiment, the results of measuring the amounts of water dispersed in the respective cutouts 8 are shown in FIG.
Shown in. In addition, as a comparative example, the measurement results of the conventional water supply device are also shown. However, the amount of water supplied to the water supply device is 1150 liters per hour, and seven cutouts 8 are continuously provided in the width direction.

As can be seen from this result, according to the water supply apparatus of the present embodiment, the water supply amount having a substantially uniform distribution is secured along the width direction.

[Other Embodiment] Another embodiment will be described below.

The water supply apparatus of the present invention is not limited to one in which each of the first, second, and third storage tanks described in the above embodiment is provided, but a plurality of storage tanks are connected in series. May be

It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a perspective view showing a water supply device according to an embodiment.

FIG. 2 is a schematic diagram showing a production line of an example.

FIG. 3 is a diagram showing a water supply amount measurement result of the water supply device according to the embodiment.

FIG. 4 is a schematic diagram showing a conventional water supply device.

[Explanation of symbols]

 2 Manufacturing belt 3 Water 4 Water supply source 5 First storage tank 5a First weir plate 6 Second storage tank 6a Communication part 7 Third storage tank 7a Second weir plate M Powdery hydraulic material

Claims (1)

[Claims] 1. A water supply device for supplying water (3) for curing onto a powdery hydraulic material (M) conveyed while being placed on a manufacturing belt (2). A first storage tank (5) for storing water (3) from the water supply source (4) is provided, and the first weir plate (5) is provided from the first storage tank (5).
A second storage tank (6) for storing water that overflows beyond a) is provided continuously with the first storage tank (5), and a communication part (6a) that can communicate with the second storage tank (6). And the second storage tank (6) through the communication part (6a).
The second weir plate (7)
A third storage tank (7) for overflowing the water (3) exceeding the width a) onto the manufacturing belt (2) in the width direction is connected to the second storage tank (6), and the first dam plate (7) is provided. 5a)
(C) is set to a value approximately equal to the outer dimension (B) in the depth direction from the first storage tank (5) to the third storage tank (7), and the second weir plate (7a) ) Height (A) is set to a value that is 1/3 to 5/6 times the outer dimension (B) in the depth direction from the first storage tank (5) to the third storage tank (7). The water supply device that has been.