JPH0416216B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a method and apparatus for dispersing granules, liquid, etc., for uniformly dispersing materials such as granules, liquid, etc. inside a cylindrical container. be.

[Prior art and its problems]

For example, in steel mills, cousk is sprinkled as a heat insulating material on the top surface of hot metal received in a cylindrical hot metal ladle. This cosk must be spread evenly so that a coske layer of a certain thickness is formed 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 was it difficult to uniformly spread the coke, but there were also problems in that the work efficiency was poor and the labor burden on the workers was large, and there were also problems in terms of safety and environmental health.

The present invention has been made in view of the above circumstances, and it is possible to uniformly and quickly spread cousk onto the hot metal in the hot metal ladle, and also allows filling of various materials such as adsorbents and ion exchange resins in the reaction tank. It is an object of the present invention to provide a method and apparatus for dispersing granules, liquids, etc. that can be widely applied to uniformly dispersing various liquid materials, charging powder and granules into silos, etc.

[Means for solving problems]

The method of the present invention is a method for dispersing granules, liquids, etc., which uniformly disperses materials such as granules, 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 at a constant speed. The device of the present invention is configured to drop and supply the above-mentioned material in a quantitative manner onto the plate, and to scatter the material by flowing down from the dispersion hole of the dispersion plate. A material supply device is disposed below the material supply device, and a plurality of dispersion holes of equal length are provided below the material supply device and extend radially from a portion having a plan view shape toward the outer circumference, and the material supply device A scattering plate is disposed on the upper part of which the material is received and flows down from the scattering hole, and the scattering plate is provided with a rotating means for rotating the scattering plate at a constant speed in a horizontal direction around the area. It is composed of

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 a plan view. It is the shape.

[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, 1 is a cylindrical container such as a hot metal pot containing hot metal, and is open at the top. The spraying device according to the present invention uniformly sprays granular material A such as coke onto a circular sprayed surface 2 such as the upper surface of hot metal inside the container 1, and is designed to uniformly spread granular material A such as coke on a circular surface 2 to be sprayed such as the upper surface of hot metal inside the container 1. It is fixedly installed on the floor 3 of the floor, and is supplied from the material supply device 4 while being rotated in the horizontal direction by a material supply device 4 which quantitatively drops and supplies the granular material A, and a rotating means 5. The granules A are received in the upper part and flowed down from the dispersion hole 6a,
It is mainly composed of a scattering plate 6 that sprays 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 has an inverted conical shape on the lower side, and is suspended by a plurality of supporting members 8a coaxially with the lower part of the storage hopper 7. It consists of a small capacity weighing hopper 8. and,
A rotary discharge device 9 is provided at the lower outlet of the storage hopper 7, and the weighing hopper 8
A damper 10 that is opened and closed by a cylinder 10a is provided at the lower discharge port of the weighing hopper 8, and each load cell 1 is provided in the middle of each support member 8a of the weighing hopper 8.
1 is interposed, and these load cells 1
1 allows a fixed amount of granular material A to be taken out from the storage hopper 7 into the weighing hopper 8. 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 on the floor 3 above the container 1.

On the other hand, the rotation means 5 rotates through the opening 3 of the floor 3.
It is provided in a. That is, the opening 3 in the floor 3
A is fixedly provided with an annular support 13 having a predetermined width and coaxial with the container 1.
A circular rail 14 is laid on the upper inner peripheral edge of the rail. 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
It is rotatably supported by being rotatably placed on the top. 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 drive device 19 is provided, and the rotary table 15 is rotated at a constant speed in the circumferential direction by the operation of the drive 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 is an inverted polygonal pyramid (inverted octagonal pyramid in the figure)
It is plate-shaped, and its center (top) O
is on a vertical axis passing through the center of the surface to be spread 2, and the outer peripheral edge (upper edge) has a polygonal shape (octagonal shape) larger than the surface to be spread 2 in plan view. and,
A guide plate 6b is disposed around the outer peripheral edge, and dispersion holes 6a extending from the center O toward the outer peripheral edge are formed in the ridge lines of the inverted polygonal pyramid. These dispersion holes 6a have the same horizontal component length (plane length) in the plan view, and in this embodiment, are approximately equal to the radius of the dispersion surface 2, and the width thereof is smaller than the particle diameter of the granules A. It is formed to be sufficiently large. 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 the granules A 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 drive device 19 is activated to rotate the rotary table 15 in the circumferential direction around its axis, thereby moving the spreading plate 6 together with the upper guide plate 21 around the vertical axis passing through the center of the surface 2 to be spread. It is rotated at a constant speed in the horizontal direction as shown by the arrow in Figure 2. Simultaneously with the rotation of the scattering plate 6, the damper 10 is opened to quantitatively drop and supply the above-mentioned amount of the granular material A stored in the weighing hopper 8. Then, the granules A are supplied to the top of the upper guide plate 21 through the guide chute 12, are evenly distributed in the circumferential direction from the top, slide down, and are evenly spread over the outer periphery of the scattering plate 6 from the lower edge of the outer periphery. to fall.
Then, the slanted upper surface of the inverted polygonal pyramid-shaped dispersion plate 6 slides down in the direction of inclination as shown by the chain line in FIG. The particles fall almost evenly in the longitudinal direction and are scattered onto the surface 2 to be sprayed. Here, the dispersion holes 6a of the dispersion plate 6 have a plurality of equal horizontal components extending radially from a center O located on a vertical axis passing through the center of the surface to be disseminated 2 toward the outer periphery. and is rotated at a constant speed in the horizontal direction around its center O, so that the granules A falling from the dispersion holes 6a of the dispersion plate 6 are uniformly dispersed over the entire surface of the dispersion target surface 2. .

In addition, in the above, the scattering plate 6 and the upper guide plate 2
1, the respective inclination angles α ₁ and α ₂ , the number of revolutions N, and the falling supply amount Q of the granular material A should be determined through actual machine tests, etc., and are subject to various conditions such as the type and properties of the granular material A. For example, if the granular material A is coke with a particle size of 3 to 4 cm, α ₁ = α ₂ = 35°, N = 4.8 rpm, and the falling feed rate Q is: It is preferable that the number of rotations per rotation of the scattering plate 6 is about 133.

In addition, in the above, the inverted polygonal pyramid scattering plate 6 is
The granular material A is quantitatively supplied to the outer periphery of the scattering plate,
and continuously flows down the slope of the dispersion plate into the dispersion holes 6.
If it falls from a, it does not need to be a right polygonal pyramid, and the outer peripheral edge (upper edge) of the scattering plate 6
The plan view shape of is also not necessarily 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 O in the plan view.

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

FIG. 5 shows a second embodiment, in which an annular chute 2 having an annular supply port is used instead of the upper guide plate 21 in the first embodiment.
4 is disposed above the scattering plate 6, and the granules A from the material supply device 4 are evenly dropped and supplied onto the outer circumference of the scattering plate 6 through the annular chute 24. In FIG. 5, reference numeral 25 denotes opening/closing plates which close the supply ports of the annular chute 24 when assembled in plurality, and are opened and closed by respective cylinders 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. The guide plate 27 also has the same plan view shape as the upper guide plate 27, but is shaped like a horizontal flat plate. A vibrating device 28 for vibrating the dispersing plate 26 is attached to the dispersing plate 26. This vibration device 28 moves a magnetic metal vibration member 28b biased in a predetermined direction by a leaf spring 28a, for example.
An electromagnet 28 that is energized and de-energized by an alternating current supplied via a slip ring 28c.
d, the vibration excitation member 28b is moved up and down by suction or release of suction, and the dispersion plate 26 is vibrated together with the upper guide plate 27.
The vibrating member 28b is attached to the scattering plate 26.
The plate spring 28a and the electromagnet 28
The device body 28f with d attached has a bracket of 28g.
It is fixed to the required fixed part via. In this embodiment, the scattering plate 26 is vibrated by the vibrator 28 and rotated in the circumferential direction by the rotating means 5, and the granules A are dropped from the weighing hopper 8 through the guide chute 12 onto the center of the upper guide plate 27. supply 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.
Since the scattering plate 26 is also vibrating at the same time, the granules A move toward the center thereof, fall through the scattering holes 26a, and are scattered onto the surface 2 to be sprayed. Note that the vibration device 28 is not a required fixed part, but a dispersion plate 26.
It may be fixed to itself or to the upper guide plate 27 itself. 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 scattering plate 6 of the first embodiment, there may be cases where it is difficult for the granules A to flow down on the scattering plate 6, or there is a need to increase the scattering 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 spreading surface, a spreading 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 embodiment, the material supply device of the present invention is composed of the storage hopper 7 and the weighing hopper 8, but it may also be composed only of the storage hopper 7 and the discharging device 9 provided at its lower part. Any material that can quantitatively supply the material to the center of the 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 dispersed through the above-mentioned scattering holes of the scattering plate, so that the material is dispersed all at once. The material can be spread evenly and quickly over a wide area, and the device has a simple structure and does not require large operating power.

[Brief explanation of drawings]

Figures 1 to 4 show one embodiment of the present invention, in which Figure 1 is an overall cross-sectional view of the spraying device, Figure 2 is a cross-sectional view taken along the - arrow in Figure 1, and Figure 3 is a scattering plate. FIG. 4 is a perspective view showing a part of FIG. 2,
In addition, Fig. 5 is a partial view showing the second embodiment, Figs. 6 and 7 show the third embodiment, Fig. 6 is an overall cross-sectional view, and Fig. 7 is an enlarged view of the vibration device part. FIG. 2... Surface to be spread, A... Granular body, 4... Material supply device, 5... Rotating means, 6, 26... Spreading plate,
6a, 26a...dispersion hole.

Claims (1)

[Scope of Claims] 1. In a method for dispersing granules, liquids, etc., for uniformly dispersing materials such as granules, liquids, etc., a plurality of particles of equal length extending radially from a certain area in a plan view toward the outer periphery. While rotating a scattering plate equipped with a scattering hole at a constant speed in the horizontal direction around that part, the above-mentioned material is quantitatively dropped and supplied onto the outer periphery of the scattering plate, and the above-mentioned material is supplied through the scattering hole of the scattering plate. A method for dispersing granular materials, liquids, etc., characterized by dispersing the material by flowing it down. 2. In a dispersion device for particles, liquids, etc. that uniformly disperses materials such as particles, liquids, etc., a material supply device that drops the material quantitatively is disposed, and below the material supply device, there is a plan view. A scattering plate is provided with a plurality of scattering holes of equal length extending radially from a portion having a certain shape toward an outer circumference, and receiving the material dropped from the material supply device at the upper part and causing it to flow down from the scattering holes. A device for dispersing granules, liquids, etc., characterized in that the dispersion plate is provided with a rotating means for rotating the dispersion plate in a horizontal direction at a constant speed around the dispersion plate.