JPS62201663A - Method and device for spreading granular material, liquid or the like - Google Patents

Abstract

PURPOSE:To uniformly disperse and drop a material over the entire part of a circular surface to be spread by providing spreading holes radially extending from a part toward the outside peripheral part and having the same lengths in the plan shape to a spreading plate. CONSTITUTION:The spreading plate 6 of a spreading device is formed to a plate shape of an inverted polypyramid having the center O thereof the vertical axis running the center of the surface to be spread. The plane shape of the outside peripheral edge thereof is formed to a polygonal shape larger than the surface to be spread. Guide plates 6b are circumferentially provided on the outside peripheral edge and scattering holes 6a extending from the center O toward the outside peripheral edge are formed to the parts which are the edge lines of the inverted polypyramid. The holes are formed to the plane shape which is equal in the length of the horizontal components and approximately equal to the radius of the surface to be spread. Such spreading plate 6 is rotated at a specified speed in the horizontal direction by a rotating means and the material is dropped and supplied at a constant rate thereto, then the material is uniformly and quickly spread over a wide range at one time.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method and apparatus for dispersing granules, liquids, etc., for uniformly dispersing materials such as granules, liquids, etc. inside a cylindrical container. be.

(Prior Art and Its Problems) For example, in steel mills, coke is sprinkled as a heat insulating material on the upper surface of hot metal received in a cylindrical hot metal ladle. This coke must be spread evenly to form a coke layer of a certain thickness on the top of the hot metal, but in the past, this work was not mechanized and relied on manual labor. For this reason, not only is it difficult to uniformly spread coke, but there are also problems in that work efficiency is poor and the labor burden on workers is heavy, and there are also problems in terms of safety and environmental health.

The present invention has been made in view of the above circumstances, and provides an adsorbent in a reaction tank that allows coke to be evenly and quickly spread over hot metal in a ladle.

The purpose of the present invention is to provide a method and device for dispersing granules, liquids, etc. that can be widely applied to filling various materials such as ion exchange resins, uniformly distributing various liquid materials, charging powder and granules in silos, etc.

[Means for solving problems]

The method of the present invention is a method of dispersing granules, liquids, etc., in which materials such as granules, liquids, etc. are uniformly dispersed, and includes a plurality of sprays of equal length extending radially from a certain area in a plan view toward the outer periphery. While rotating a scattering plate equipped with holes at a constant speed in the horizontal direction around that part, the above-mentioned material is quantitatively dropped and supplied onto the outer circumference of the scattering plate, and the above-mentioned material is distributed through the scattering holes of the scattering plate. Furthermore, the apparatus of the present invention is provided with a material supply device that drops the material quantitatively, and below the material supply device, there is a plan view shape. A scattering plate is provided with a plurality of dispersion holes of equal length extending radially from the site toward the outer periphery, and receives the material dropped from the material supply device at the upper part and causes the material to flow down from the dispersion holes; The above-mentioned dispersion plate is provided with a rotation means for rotating the dispersion plate in the horizontal direction at a constant speed around the dispersion plate.

Note that the plan view shape of the scattering plate is the shape of the scattering plate that is generated on a plane by projecting the scattering plate from an upward point at infinity, and is the shape of the scattering plate shown in the commonly-called plan view. be.

[Effect]

In the above configuration, the granules are supplied from the material supply device.

When a material such as a liquid is supplied quantitatively, the material falls onto the outer periphery of the spreading plate, moves inward from the outer periphery, flows down from the spreading hole, and falls onto the surface to be spread. The dispersion plate has dispersion holes extending radially from the center of rotation of the dispersion plate toward the outer periphery in a plan view, and has a plurality of horizontal components having equal lengths, and is rotated at a constant speed in the horizontal direction by a rotating means. Therefore, the material is evenly distributed and falls over the entire circular sprayed surface whose radius is the length of the horizontal component of the spray hole.

〔Example〕

Hereinafter, a first embodiment of the apparatus of the present invention will be described with reference to FIGS. 1 to 4.

In the figure, numeral 1 is a cylindrical container made of molten steel or the like containing hot metal, and the top thereof is open. The spraying device according to the present invention uniformly sprays granules such as coke onto a circular sprayed surface 2 such as the upper surface of hot metal inside the container 1,
It is fixedly installed on the floor 3 of the floor above the floor where the container 1 is placed, and is rotated in the horizontal direction by a material supply device 224 that supplies the granular material △ by falling at a constant meter, and a rotation means 5. It is mainly composed of a scattering plate 6 which receives the granular material A supplied from the material supply device 4 at the upper part thereof, causes it to flow down from the scattering hole 6a, and scatters it onto the surface 2 to be sprayed.

The material supply device 4 has an inverted conical shape on the lower side, and is supported by a plurality of support columns 7a so that its center line is coaxial with the axis of the container 1 (vertical axis passing through the center of the surface to be spread 2). A large capacity storage hopper 7 installed on the floor 3,
The lower side has an inverted conical shape, and consists of a small-capacity weighing hopper 8 suspended below the storage hopper 7 by a plurality of supporting members 8a so as to be coaxial therewith. and,
The lower discharge port of the storage hopper 7 is equipped with a rotary discharge device W19, and the lower discharge port of the weighing hopper 8 is equipped with a damper 10 that is opened and closed by a cylinder 10a.
In addition, each load cell 11 is interposed in the middle of each support member 8a of the weighing hopper 8, and a fixed amount of granular material A can be taken out from the storage hopper 7 into the weighing hopper 8 by these load cells 11. It looks like this. Further, in the lower part of the weighing hopper 8, there is a guide chute 12 having an inverted conical shape on the upper side and a vertical cylindrical shape on the lower side. It is fixedly attached by a plurality of brackets 12a facing the discharge port of the weighing hopper 8, and the guide chute 12 is inserted into a circular opening 3a formed in a portion of the floor 3 above the container 1. It is inserted.

On the other hand, the rotating means 5 is provided in the opening 3a of the floor 3. However, the container 1 is placed in the opening 3a of the floor 3.
An annular support stand 13 having a predetermined width and coaxial with the support stand 13 is fixedly provided, and a circular rail 14 is laid on the upper inner peripheral edge of the support stand 13. An annular rotary table 15 is mounted on the rail 14, and a plurality of support wheels 16 are mounted on the rail 14, coaxially with the container 1, surrounding the weighing hopper 8, and mounted on the lower surface at a predetermined pitch in the circumferential direction. 14, and is rotatably supported.

Further, a roller chain 17 is wound around and fixed to the outer peripheral surface of the rotary table 15 in the circumferential direction, while a sprocket 18 meshed with the roller chain 17 is mounted on the upper part of the support base 13. A driving device 19 is provided, and the rotary table 15 is rotated at a constant speed in the circumferential direction by the operation of the driving device 19. The scattering plate 6 is provided on the inner periphery of the lower surface of the rotary table 15 via a plurality of hanging rods 20 .

The above-mentioned scattering plate 6 has a plate shape of a breech pyramid (inverted pyramid in the figure), and its center (top) 0 is on the vertical axis passing through the center of the surface 2 to be spread, and the outer peripheral edge ( The top edge (upper edge) has a polygonal shape (helical shape) larger than the surface 2 to be sprayed. A guide plate 6b is disposed around the outer peripheral edge, and dispersion holes 6a extending from the center 0 toward the outer peripheral edge are formed in the ridgeline of the breech pyramid. These dispersion holes 6a have the same length (horizontal component length and plane length) in the plan view, and in this embodiment, are approximately equal to the radius of the sprayed surface 2, and their width is much larger than the particle diameter of the granules A. It is formed to become larger. Further, above the scattering plate 6, there is a conical upper guide whose outer peripheral edge (lower edge) has a circular plan view shape slightly larger than the spread surface 2 and slightly smaller than the outer peripheral edge of the scattering plate 6. A plate 21 is arranged with its center (top) located on a vertical axis passing through the center of the surface to be spread 2, and one of the plurality of guide plates 22 fixed radially on the upper guide plate 21. The lower ends of the hanging rods 20 are fixed to the lower ends of the hanging rods 20, and the outer ends of these guide plates 22 are fixed to the vicinity of the outer periphery of the scattering plate 6 (corners of the polygon), so that the scattering plates 6 and the upper guide The plates 21 are fixed at intervals. Note that 23 in the figure is a cylindrical hood.

Next, one embodiment of the method of the present invention will be described.

The method of the present invention is suitably carried out using the spraying device configured as described above. That is, in the spraying device configured as described above, first, a fixed amount of granules to be sprayed onto the surface 2 to be sprayed is taken out from the storage hopper 7 and stored in the weighing hopper 8. Next, the driving bag @19 is activated to rotate the rotary table 15 in the circumferential direction around its axis, thereby moving the scattering plate 6 together with the upper guide plate 21 around the vertical axis passing through the center of the surface to be spread 2. It is rotated at a constant speed in the horizontal direction as shown by the arrow in FIG. Simultaneously with the rotation of the scattering plate 6, the granular material A contained in the window 1 contained in the weighing hopper 8 is constantly dropped and supplied by opening the damper 10. Then, the granular material A becomes
It is supplied to the top of the upper guide plate 21 through the guide chute 12, and slides down from the top while being distributed evenly in the circumferential direction, and falls evenly onto the outer periphery of the dispersion plate 6 from the lower edge of the outer periphery.

Then, the inclined upper surface of the breech pyramid-shaped dispersion plate 6 slides down in the direction of the inclination as shown by the chain line in FIG. The particles fall almost evenly and are scattered on the surface 2 to be sprayed. Here, the dispersion holes 6a of the dispersion plate 6 are as follows:
It has a plurality of equal horizontal component lengths extending radially from the center O located on the vertical axis passing through the center of the spread surface 2 toward the outer periphery, and is constant in the horizontal direction around the center 0. Since it is rotated at a high speed, the granules A falling from the dispersion holes 6a of the dispersion plate 6 are uniformly dispersed over the entire surface 2 to be sprayed.

In addition, in the above, each inclination angle α1 of the scattering plate 6 and the upper guide plate 21. α2. The rotational speed N and the falling supply mQ of the granular material A should be determined by actual machine tests, respectively, and the type of the granular material A.

Although it varies depending on various conditions such as properties, when the granular material A is coke with a particle size of 3 to 4 cM, for example, α
1-α2=35°, N=4.8rpm t-1 Also,
The falling supply ff1Q is 1331 per rotation of the scattering plate 6.
It is preferable to set it as approximately.

In addition, in the above, the breech pyramidal scattering plate 6 is such that the granules A are supplied to the outer periphery of the scattering plate at a constant m, and continuously flow down the inclined surface of the scattering plate and fall from the scattering holes 6a. If so, it does not have to be a right polygonal pyramid, and the plan view shape of the outer peripheral edge t8 (fabric part) of the scattering plate 6 does not need to be a regular polygon. Furthermore, the apexes of the triangle located at the center O of the dispersion plate 6 formed by the dispersion holes 6a do not need to be on the same horizontal plane, and it is sufficient that these apexes are located at the center 0 in the plan view.

Next, some other embodiments of the present invention will be described.

FIG. 5 shows a second embodiment. In this embodiment, in place of the upper guide plate 21 in the first embodiment, an annular chute 24 having an annular supply port is installed above the dispersion plate 6. The granular material A from the material supply device @4 is evenly dropped and supplied onto the outer circumference of the scattering plate 6 through the annular chute 24. In addition, in Fig. 5, 25
2 are opening/closing plates that close the supply port of the annular chute 24 in a plurality of assembled state, and are opened and closed by each cylinder 25a.

Further, FIGS. 6 and 7 show a third embodiment, and in this embodiment, the scattering plate 26 has the same plan view shape as the above-mentioned scattering plate 6, but has a horizontal flat plate shape, and has an upper part. Information board 27
Similarly, the plan view shape is the same as that of the upper guide plate 21, but it is in the shape of a horizontal flat plate. Then, the above-mentioned scattering plate 26
A vibrating device 28 is attached to vibrate this.

This vibration device 12B includes an electromagnet 28d that excites and de-energizes a magnetic metal vibration member 28b biased in a predetermined direction by a leaf spring 28a, for example, with an alternating current supplied via a slip ring 28c. By applying suction or releasing suction, the vibrating member 28b is moved up and down to vibrate the scattering plate 26 together with the upper guide plate 27. ,
The dispersion plate 26 is locked by a locking member 28e in a state where rotation is allowed, and the plate spring 28a and electromagnet 28d
The device main body 28f with the attached device is fixed to a required fixing portion via a bracket 28°. In this embodiment, the rotation means 5 is rotated while the dispersion plate 26 is vibrated by the vibrating device 28.
As a result, this is rotated in the circumferential direction, and the granular material A is dropped and fed from the weighing hopper 8 through the guide chute 12 onto the center of the upper guide plate 27. Then, the granular material A spreads radially in the radial direction due to the vibration of the upper guide plate 27, and falls from its outer periphery onto the outer periphery of the scattering plate 26, but since the scattering plate 26 is also vibrating at the same time. The granules A move toward the center, fall through the spray holes 26a, and are sprayed onto the surface 2 to be sprayed. Note that the vibration device 28 may be fixed to the dispersion plate 26 itself or the upper guide plate 27 itself instead of the required fixed part. Further, the current supplied to the vibration device 28 may be taken from two rails of the rotary table 15, for example. Furthermore, when the vibration device 28 is added to the dispersion plate 6 of the first embodiment, it may be difficult for the granules to flow down the dispersion plate 6, or there may be a need to increase the dispersion speed of the granules A. In such a case, the vibrating device 28 can be operated as necessary to promote the flow of the granular material A, which is convenient.

Furthermore, it goes without saying that the present invention is applicable not only to the spraying of the granular material A, but also to the spraying of various liquid materials.

Further, in the first to third embodiments, the explanation was given using a scattering plate whose longest distance from the center in the plan view shape is approximately equal to the radius of the spread surface, but the present invention is not limited thereto. Alternatively, the spreading plate may be moved at a constant speed over a wide spread surface. For example, for an annular spread surface, a dispersion plate rotated by a rotating means such as rotation and revolution may be moved in an annular shape together with a material supply device at a constant speed. By sequentially moving the material according to the shape, the material can be uniformly spread on surfaces of various shapes.

Further, in each of the embodiments, the material supply device of the present invention was configured with the storage hopper 7 and the weighing hopper 8, but it may also be configured with only the storage hopper 7 and a discharge device V: 19 leaking to the lower part of the storage hopper 7. In short, any material that can quantitatively supply the material to the center of the scattering plate may be used.

〔Effect of the invention〕

As explained above, the present invention is capable of rotating a dispersion plate in which a plurality of dispersion holes of equal length are formed radially from the center toward the outer periphery in a plan view in the horizontal direction at a constant speed using a rotating means. , the material such as granules is quantitatively dropped and supplied onto the above-mentioned scattering plate by a material supply device, and the above-mentioned material is caused to flow down and spread through the above-mentioned scattering holes of the scattering plate, so that it can be spread over a wide area at once. The material can be spread evenly and quickly over the area, and the device has a simple structure and does not require large operating power.

[Brief explanation of drawings]

1 to 4 show an embodiment of the present invention,
Figure 1 is an overall sectional view of the spraying device, and Figure 2 is an If diagram of Figure 1.
-II arrow sectional view, FIG. 3 is a perspective view of the scattering plate, FIG. 4 is a perspective view showing a part of FIG. 2, FIG. 5 is a partial view showing the second embodiment, FIG. FIG. 7 shows a third embodiment, FIG. 6 is an overall sectional view, and FIG. 7 is an enlarged sectional view of the vibrator. 2... Spreading surface, A... Granular material, 4.
... Material supply device, 5 ... Rotation means, 6
, 26...Scatter plate, 6a, 26a...
Spray hole.

Claims (2)

[Claims] (1) Granules, granules that uniformly disperse materials such as liquids,
In a method of dispersing liquids, etc., a dispersion plate equipped with a plurality of dispersion holes of equal length extending radially from a certain area in a plan view toward the outer periphery is rotated horizontally at a constant speed around that area. A method for dispersing granules, liquids, etc., characterized in that the above-mentioned material is quantitatively dropped and supplied onto the outer periphery of the dispersion plate, and the above-mentioned material is caused to flow down and dispersed through the dispersion holes of the dispersion plate. (2) Granular materials that uniformly disperse materials such as granular materials and liquids;
In the dispersion device for liquid, etc., a material supply device for quantitatively dropping the material is disposed, and below the material supply device, there are a plurality of equal parts extending radially from a portion having a plan view shape toward the outer circumference. A scattering plate is provided with a scattering hole of a length, and receives the material dropped from the material supply device at the upper part and causes the material to flow down from the scattering hole. A dispersing device for dispersing granules, liquids, etc., characterized in that it is equipped with a rotating means for rotating at a constant speed in the horizontal direction around the center.