JPH0312350Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a vertical separation device that uses centrifugal force to separate, for example, dust-containing gas into clean gas and dust.

(Prior Art) Conventionally, a cyclone 40 is a typical device that uses this type of centrifugal force to separate dust-containing gas into clean gas and dust, and its configuration is as shown in FIG. A cyclone body is constituted by a cylindrical part 41 and a conical part 42 continuous thereto, an inlet pipe 43 is provided in the tangential direction above the cylindrical part 41, and an outlet pipe 44 is provided in the center of the upper part of the cylindrical part. The conical portion 4 is provided to extend within the portion 41 .
A take-out pipe 45 and a dust collection box 46 are provided at the lower end of the dust collector 2 .

(Problem to be Solved) However, with this conventional cyclone 40, when the dust-containing gas to be treated is introduced into the cylindrical part 41 from the inlet pipe 43 in the tangential direction, it becomes a descending swirling flow R1 and the cylindrical part 41 and descends the conical part 42. During this descending process, the dust in the dust-containing gas is deposited on the vessel wall due to centrifugal force, and due to the weight and downward swirling flow, it descends along the vessel wall and is deposited in the dust collection box 46. The direction of this descending swirling flow R1 is reversed at the lower end of the conical portion 42 to become an ascending swirling flow R2, which passes through the center of the descending swirling flow R1 and is discharged from the outlet pipe 44 to the outside of the cyclone 40. ,
When the upward swirling flow R2 is generated, there is a problem in that the dust is discharged along with the same airflow R2, and the separation effect is significantly reduced.Therefore, there are problems such as the need to increase the volume of the dust collection box. .

(Means for solving the problems) The present invention was made to solve the above-mentioned conventional problems, and its purpose is to provide a vertical separation device that can significantly improve the separation process of dust. ,
The gist is that a cylindrical part is provided at the top of an outer cylinder of a predetermined diameter,
An outlet pipe extending into the cylindrical part is provided at the center of the upper part of the cylindrical part, and an inflow pipe is provided in a part of the outer periphery of the cylindrical part for introducing the dust-containing gas in a tangential direction to impart a swirling motion. , a conical tubular first cyclone body having a predetermined length continuous to the cylindrical portion; a large diameter portion having a predetermined length on the lower side of the first cyclone body; and a lower opening of the first cyclone body. A second cyclone section is provided, which is made up of a plurality of conical tube-shaped cyclone bodies, each having a smaller diameter section and a larger diameter section, and the upper cyclone section of the second cyclone section is attached to the lower outer periphery of the first cyclone body at a predetermined distance. The lower cyclone body is fitted externally with the larger diameter side of the upper cyclone body with a predetermined fitting distance, and
The large diameter portion of each cyclone body is sequentially and continuously disposed on the inner wall surface of the outer cylinder with a predetermined gap, and the large diameter portion of each cyclone body is successively fitted onto the outer cylinder with a predetermined gap, so as to prevent the swirling flow from the cylindrical portion from moving outward. A wall part is formed on which floating dust can be deposited by the tertiary swirl flow generated in the outer cylinder, and the lower part of the outer cylinder has a substantially conical shape with a predetermined distance from the inner periphery of the outer cylinder. The present invention relates to a vertical separation device characterized by having a configuration in which a wall plate is provided.

(Embodiment) Next, an embodiment of the present invention will be described with reference to the drawings. In the figure, 1 is the entire vertical separation device, and the device 1 is mounted on a stand 2 and erected on the stand 2. It is composed of a separation frame 6. A dust collection hopper 3 is attached to this frame 2, and the hopper 3
The outlet 4 at the bottom end has a slide valve 5 that can be opened and closed.
is mounted on the hopper 3, and a separation frame 6 is mounted on the hopper 3.

Reference numeral 7 denotes an outer cylinder of the above-mentioned separation frame 6, which has a predetermined diameter and height, and an outlet pipe 9 of a predetermined diameter in the center of a lid part 8 attached to the upper end for leading out clean gas. is formed to extend inward of the outer cylinder 7 by a predetermined length 1. Further, a cylindrical part 10 is formed within a length L1 from the upper part of the outer cylinder 7, and a first cyclone body 11 having a conical tube shape and having a predetermined length L2 is continuously provided at the lower part of this cylindrical part 10. . Further, a second cyclone part 12 is formed on the lower side of the first cyclone body 11 over a predetermined range L3 as shown in the figure, and a plurality of second cyclone parts 12 (in this example, three parts are used). It is composed of cyclone bodies 13, 14, and 15 having the same shape as shown in the example). Each of the cyclone bodies 13, 14, 15 is formed in the shape of a conical tube having a large diameter d1, a small diameter d2, and a height L4.
The cyclone body 13 is attached to the outer cylinder 7 through a plurality of attachment pieces 16 with a gap t1 on the lower side thereof, and the large diameter d1 side of the cyclone body 13 is attached to the inner peripheral surface of the outer cylinder 7. The small diameter side of the lower part of the first cyclone body 11 extends by a dimension 2 from the small diameter side d2 of the cyclone body 13. Further, the large diameter d1 side of the cyclone body 14 is externally fitted to the small diameter d2 side of the cyclone body 13 with a fitting margin of 3 at a distance t1, and the large diameter d1 side is externally fitted to the small diameter d2 side of the cyclone body 13. It is attached by a mounting piece 16 at a distance t2 from the circumferential surface. Further, the lowermost cyclone body 15 is also attached in the same way, and this first
A cyclone S having a length LA is formed by the cyclone main body 11 and the second cyclone portion 12.
Further, an inlet pipe 17 is formed in the upper part of the cylindrical part 10 to introduce the dust-containing gas into the cylindrical part 10 in a tangential direction to give a swirling motion. Furthermore, reference numeral 18 denotes a cutting board provided at a predetermined distance from the cyclone body 15 on the lower side, and is formed in a substantially conical shape, and its outer periphery has a predetermined distance from the inner circumferential wall of the outer cylinder 7. installed.

Next, the operation and effects of this embodiment configured as described above will be explained.

Now, the separation device 1 of this example is provided with a cylindrical part 10 at the upper part of an outer cylinder 7 having a predetermined diameter, and an outlet pipe 9 extending into the cylindrical part 10 with a predetermined length 1 at the center of the upper part of the cylindrical part 10. At the same time, an inflow pipe 17 is provided on a part of the outer circumference of the cylindrical portion 10 to introduce the dust-containing gas in a tangential direction to give a swirling motion, and a conical pipe of a predetermined length L2 is provided continuously to the cylindrical portion 10. The tubular first cyclone body 11 and the lower part of the first cyclone body 11 have a large diameter part d1 having a predetermined length L4 and a small diameter part d having a larger diameter than the lower opening of the first cyclone body 11.
Three conical tube-shaped cyclone bodies 1 consisting of 2
A second cyclone part 12 consisting of 3, 14, and 15 is provided, and the upper cyclone body 13 of the second cyclone part 12 is fitted onto the lower outer periphery of the first cyclone main body 11 with a predetermined distance t1, The lower cyclone bodies 14 and 15 are the upper cyclone bodies 13 and 14.
The large diameter d1 side of the cyclone body 13, 14, 15 is sequentially fitted onto the small diameter d2 side with a predetermined fitting allowance 3 and a predetermined distance t1, and the large diameter d1 side of each cyclone body 13, 14, 15 is externally fitted. Floating dust D2 is generated by the tertiary swirling flow R3 that is successively arranged on the inner wall surface of the cylinder 7 with a predetermined interval t2 and generated from the cylindrical portion 10 on the outside of the swirling flow R1.
The outer cylinder 7
At the lower side of the outer cylinder 7, a substantially conical wall plate 18 is provided with a predetermined distance from the inner periphery of the outer cylinder 7. Therefore, at a predetermined speed, the inflow pipe 17
The dust-containing gas introduced into the cylindrical part 10 flows tangentially into the cylindrical part 10 and becomes a spiral descending swirling flow R1, which flows into the cylindrical part 10 and the first cyclone main body 1 which is continuous therewith.
1 as shown by the solid line in the figure. When this descending swirling flow R1 exits the first cyclone main body 11, it descends inside the second cyclone section 13, which has a slightly larger diameter, with a slightly slower swirling speed.
It descends while maintaining the descending swirling flow R1 in the cyclone body 11, and when it reaches the jamb plate 18, the descending swirling flow reverses its direction and becomes an ascending swirling flow R2,
The upward swirling flow R2 passes through the center of the descending swirling flow R1 and is discharged from the outlet pipe 9 to the outside of the separation frame 6 as a clean airflow. Therefore, the large dust D1 in the dust-containing gas introduced from the inflow pipe 17 first
Most of the dust D1 is deposited on the inner circumferential surface of the cylindrical part 10 and the first cyclone main body due to centrifugal force, and this large dust D1 is caused by its own weight and descending swirling flow R.
1, the large dust D1 descends downward to the side of the jamb plate 18, and the large dust D1 is guided to the inclined surface of the jamb plate 18 by the swirling force of the descending swirling flow R1, and collides with the outer cylinder 7. It is deposited in the hopper 3 from the middle.

Further, the swirling speed of the swirling flow exiting the first cyclone body 11 is slightly reduced by the cyclone bodies 14 and 15 of the second cyclone section 12 which are disposed in succession. ，
15, the remaining dust is sequentially deposited, and these remaining dust are descended by the descending swirling flow R1 and deposited in the hopper 3. In addition, a gently swirling tertiary swirl flow R3 is generated on the outer periphery of this descending swirl flow R1, and fine dust D2 is swirled in a suspended state riding on this tertiary swirl flow R3. The dust D2 is accumulated on the inner circumference of the outer cylinder 7 in a rising shape, and when it reaches the second cyclone part 12, this fine dust D2 is deposited on the inner circumferential surface of the lower cyclone body 15 and the inside of the cyclone bodies 14, 13. The fine dust D2 is accumulated on the circumferential surface in a rising manner, and the accumulated fine dust D2 is pushed up from the interval t1 and falls downward from the interval t2, and is deposited in the hopper 3.

As described above, according to this example, the large dust D1 is separated into the descending swirling flow R1 that becomes the mainstream by the cylindrical part 10 and the first cyclone main body 11, and furthermore, the second cyclone main body 11 continues to the second cyclone main body 11.
The remaining dust can be separated by the cyclone section 12, and a tertiary swirling flow R3 is generated around the outer periphery of this descending swirling flow R1, and fine dust D2 floating inside the outer cylinder 7 is removed from the outer cylinder 7. The lower inner peripheral surface of the cyclone body 1 of the second cyclone part 12
3, 14, and 15 in an upright manner, and at the bottom of the outer cylinder, it separates in a peeling manner and falls into the hopper 3. In addition, in the second cyclone section 12, fine dust D2 is deposited from the gap t1. It is pushed up and dropped downward from the interval t2, so that separation processing can be performed at a high efficiency. Further, when the descending swirling flow R1 reaches the boundary plate 18, the dust descending on the same swirling flow R1 moves to the boundary plate 18 due to the swirling force.
Since the dust is guided by the inclined surface of 8 and falls from the gap between it and the outer cylinder 7 to the hopper 3, there is almost no accumulation of dust on the edge plate 18. rising swirling flow R
2, the amount of dust emitted can be significantly reduced, and the separation effect can be significantly enhanced. Also,
By providing this baffle plate 18, conventionally a large hopper was required, but since this baffle plate 18 evens out the upper surface of the accumulated dust, the volume of the hopper 3 can be reduced. It has many features.

In the above embodiment, a slide valve 5 is provided at the outlet 4 of the hopper 3, and the separated dust is removed by opening and closing the slide valve 5.
As shown in FIG. 4, an air transportation device 20 may be provided. That is, this device 20 is attached to the outlet 4 of the hopper 3 or the outlet 4 of a funnel-shaped receiving part formed at the bottom of the separation frame 6, and the lower part of the outlet 4 has a predetermined length. At the same time, a slide valve 5 is attached to the outlet pipe 21 in the vicinity of the outlet 4, and a shutter plate 5a slidably provided on the slide valve 5 has the outlet pipe 21 attached thereto. A hole 5b that matches the inner diameter of the shutter plate 5a is provided through the shutter plate 5a, and a rod 23 of an operating cylinder 22 is attached to one end of the shutter plate 5a so that the extraction pipe 21 can be opened and closed by the operation of the operating cylinder 22. Also,
The lower end of the take-out pipe 21 is inserted into a transport box 28, and a rotary valve 24 is provided at the lower side of the take-out pipe 21, and a rotating shaft 26 of the rotary cylinder 25 is used to open and close the lower opening of the take-out pipe 21. A shutter plate 27 is attached to allow the pipe section 21 between the slide valve 5 and the rotary valve 24 to
A is formed to accommodate a predetermined amount of dust. Further, a feed pipe 29 of a predetermined length is formed extending horizontally from a part of the lower part of the transport box 28, and a transport pipe 30 is connected to the feed pipe 29.

Further, although not shown, an air nozzle 31 connected to an air source is provided on the side of the transport box 28 facing the feed pipe 29. Therefore, in this transport device 20, when the operating cylinder 22 is operated to open the extraction pipe 21, a predetermined amount of dust is accommodated in the pipe section 21a, and the operating cylinder 22 is operated to close the upper part of the pipe section 21a. The rotary valve 24 is operated to open the lower part of the pipe portion 21a, and the dust is dropped into the box 28. Then, at the same time as the rotary valve 24 closes the pipe portion 21a, air is ejected from the air nozzle 31, thereby sending the dust to the feed pipe 29 side, and the dust is carried on the air and transported to, for example, a back filter.

Therefore, for example, when dust is taken out from the hopper 3 to another container, the dust is scattered, but by adding this transportation device 20, the dust can be easily transported without being scattered.

(Effect of the invention) Now, the present invention provides a cylindrical part at the upper part of an outer cylinder of a predetermined diameter, provides an outlet pipe extending into the cylindrical part at the center of the upper part of the cylindrical part, and a part of the outer circumference of the cylindrical part. An inflow pipe is provided in the cylindrical part to introduce dust-containing gas in a tangential direction to give a swirling motion, and a conical first cyclone body having a predetermined length and a lower part of the first cyclone body are connected to the cylindrical part. A second cyclone section is provided on the side, which is made up of a plurality of conical tube-shaped cyclone bodies having a predetermined length and consisting of a large diameter section and a small diameter section larger in diameter than the lower opening of the first cyclone body. The upper cyclone body of the second cyclone section is connected to the first cyclone body.
The lower cyclone body is fitted onto the outer periphery of the lower part of the cyclone body with a predetermined gap, and the lower cyclone body has its large diameter side fitted onto the smaller diameter side of the upper cyclone body with a predetermined fitting margin and a predetermined gap. and the large-diameter portions of each cyclone body are sequentially and continuously disposed on the inner wall surface of the outer cylinder with a predetermined distance, so that the swirling flow from the cylindrical portion is generated outside the cylindrical portion. A wall part is formed on which floating dust can be deposited by a tertiary swirl flow, and a substantially conical wall plate is provided on the lower side of the outer cylinder with a predetermined distance from the inner periphery of the outer cylinder. With this structure, the cylindrical part and the first cyclone body separate large dust particles as a descending swirling flow that becomes the mainstream, and the second cyclone part continuous to the first cyclone body separates the remaining dust. In addition, a tertiary swirl flow is generated on the outer periphery of this descending swirl flow, and the fine dust floating in the outer cylinder is removed from the lower inner peripheral surface of the outer cylinder and each cyclone in the second cyclone section. The dust is deposited on the inner circumferential surface of the body in a rising shape, and at the bottom of the outer cylinder, it separates in a peeling manner and falls into the hopper.In addition, in the second cyclone part, fine dust is pushed up from between the cyclone bodies. The material is then dropped downward from the gap between it and the outer cylinder, making it possible to perform separation processing with high efficiency.

In addition, when the descending swirling flow reaches the jamb board, the dust descending on the swirling flow is guided by the swirling force to the slope of the jamb board and falls into the hopper from the gap between it and the outer cylinder. Almost no dust accumulates on the sill plate, and therefore, the amount of dust that is discharged by riding the upward swirling flow that reverses and rises from this sill plate can be significantly reduced, resulting in a significant separation effect. It can be high. In addition, by providing this cutting board, a large hopper was required in the past, but since the top surface of the accumulated dust is leveled out by this cutting board, the volume of the hopper can be reduced, making it possible to reduce the size of the hopper vertically. This is an extremely practical idea as a mold separation device.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is an overall view of a vertical separation device, Fig. 2 is a vertical sectional view of a separating frame, Fig. 3 is a plan view, and Fig. 4 is a diagram of a dust transport device. A partially cutaway front view, FIG. 5, shows a conventional example. 1... Vertical separation device, 6... Separation frame body, 7... Outer cylinder,
9... Outlet pipe, 10... Cylindrical part, 11... First cyclone body, 12... Second cyclone part, 13, 14,
15... cyclone body, 17... inflow pipe, 18... wall plate, t1, t2... = interval, R1... descending swirl flow, R
2... Rising swirl flow, R3... Tertiary swirl flow.

Claims (1)

[Scope of utility model registration request] A cylindrical part is provided at the top of an outer cylinder of a predetermined diameter, an outlet pipe is provided at the center of the upper part of the cylindrical part and extends into the cylindrical part, and a dust-containing gas is introduced tangentially into a part of the outer periphery of the cylindrical part. A conical first cyclone body having a predetermined length continuous to the cylindrical portion and a predetermined length on the lower side of the first cyclone body are provided. A second cyclone section is provided, which is made up of a plurality of conical tube-shaped cyclone bodies, each of which has a large diameter section and a small diameter section that is larger in diameter than the lower opening of the first cyclone body, and the upper cyclone body of the second cyclone section is The lower cyclone body is fitted onto the outer periphery of the lower part of the first cyclone body with a predetermined gap, and the lower cyclone body is fitted with its large diameter side on the small diameter side of the upper cyclone body with a predetermined fitting margin and a predetermined gap. The large-diameter portions of each cyclone body are sequentially and continuously disposed on the inner wall surface of the outer cylinder with a predetermined distance, and the large-diameter portions of each cyclone body are successively disposed on the inner wall surface of the outer cylinder with a predetermined distance from each other so that the swirling flow originates from the cylindrical portion on the outside. A wall portion is formed on which floating dust can be deposited by the generated tertiary swirl flow, and a substantially conical wall is provided on the lower side of the outer cylinder with a predetermined distance from the inner periphery of the outer cylinder. A vertical separation device with a plate structure.