JPH1024254A - Dust collecting system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent dust from remaining in clean air discharged from a horizontal cyclone. SOLUTION: The dust collecting system is constituted of a horizontal cyclone A provided with a vortex generating blade 2 for making dust containing air a vortex to collect dust on a cylinder inner wall surface 1b by centrifugal force, a dust containing air discharging port 3 communicating with the cylinder inner wall surface on the downstream side of the vortex generating blade, and a discharging port 4 for discharging air from which dust has been removed from the other end of the cylinder, a first blower B connected to the discharging port 4, a vertical cyclone C in which a suction port 5 for sucking dust containing air discharged from the discharging port 3 therein is formed on an upper end outer periphery 6a of a cylinder 6 in the radial direction thereof to make dust containing air a vortex and cause it to flow downward along the cylinder inner wall surface while dust is collected on the cylinder inner wall surface by centrifugal force and discharge clean air from a discharging port 7 from the cylinder central part, and a second blower D connected to the discharging port 7. In this case, the pressure of dust containing air discharged from the discharging port 3 of the horizontal cyclone A is made >=1.5 times as negative as that of dust containing air flowing in from one end of the cylinder of the horizontal cyclone A.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a dust collection system in which a horizontal cyclone, a vertical cyclone, and a blower are connected in series.

[0002]

2. Description of the Related Art Conventionally, as a dust collection system in which a horizontal cyclone, a vertical cyclone and a blower are connected in tandem, Japanese Patent Publication No.
There was one disclosed in Japanese Patent No. 22022.
This is achieved by connecting a first-stage outlet of a flow distributor having an air inlet to an air inlet of a coarse dust collector (corresponding to a horizontal cyclone), and a dust outlet of the coarse dust collector. Is connected to a dust introduction port of a dust hopper (corresponding to a vertical cyclone), and an exhaust port of the dust hopper from which dust has been removed is connected to a blower, and the blower is connected to the air of the coarse dust collector. Connects to the inlet and discharges coarse dust from the coarse dust discharge port of the dust hopper. A second-stage outlet of the coarse dust collector is connected to an air inlet of a fine dust collector (corresponding to a horizontal cyclone), and a fine dust outlet of the fine dust collector is connected. From the fine dust collector, the air from which the dust is removed from the fine dust collector and the air from which the dust is removed from the coarse dust collector are combined into an airflow mixing and mixing machine, and the combined air is discharged. It is open to the atmosphere.

[0003]

The above-mentioned conventional dust collecting system has a certain dust collecting effect. However, the conventional dust collecting system does not allow the coarse dust collector and the fine dust collector to remove dust from the air. There was a risk that dust would remain. That is, dust collection could not be performed completely. An object of the present invention is to make it possible to completely collect dust in the conventional dust collection system.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention solves the above-mentioned problem.
A vortex generating blade 2 for vortexing the dust-containing air that has flowed in and collecting dust on the cylindrical inner wall 1b by centrifugal force to flow into the cylinder, and a cylindrical inner wall downstream of the vortex generating blade 2 1b, a horizontal cyclone A having a dust-containing air discharge port 3 provided with an air discharge port 4 from which dust is removed from the other end of the cylinder 1, and the horizontal cyclone A
An intake port 5 through which the dust-containing air discharged from the dust-containing air discharge port 3 communicating with the cylindrical inner wall 1b is drawn is provided in the tangential direction of the outer periphery 6a of the upper end of the vertically arranged cylinder 6. A vertical cyclone C configured to vortex and flow dust downward along the cylinder inner wall while collecting dust on the cylinder inner wall by centrifugal force, and to discharge the air from which the dust in the center of the cylinder has been removed through the outlet 7; The vertical cyclone C comprises a blower D connected to a dust-exhausted air outlet 7, and the pressure of the dust-containing air discharged from the dust-containing air outlet 3 of the horizontal cyclone A is determined by the horizontal cyclone. A dust collection system characterized in that the pressure of the dust-containing air flowing from one end of the cylinder 1 of A is set to a negative pressure 1.5 times or more.

[0005] The horizontal cyclone A is configured such that the dust-containing air that has flowed into the inner cylinder 1a of the one-sided cylinder 1 is swirled to collect dust on the inner cylinder wall 1b by centrifugal force. And a cylindrical inner wall 1b on the downstream side of the vortex generating blade 2 of the preceding stage.
And a discharge port 3 for dust-containing air at the preceding stage is provided, and a vortex generation blade 2 'at the next stage is provided in a cylinder downstream of the discharge port 3 for dust-containing air at the previous stage. A discharge port 3 ′ for the next stage of dust-containing air is provided in communication with the cylindrical inner wall 1 b ′ on the downstream side of the blade 2 ′, and several stages of vortex generating blades and a discharge port for the dust-containing air are provided as necessary. The dust collection system is characterized in that the dust-containing air discharged from these discharge ports is sucked into the vertical cyclone C.

[0006] The horizontal cyclone A is configured such that the dust-containing air that has flowed into one end cylinder 1a of the horizontally arranged cylinder 1 is swirled to collect dust on the inner wall 1b of the cylinder by centrifugal force. A vortex flow generating blade 2 for flowing into the inside, a cone-shaped mesh 8 protruding toward the vortex flow generating blade 2 is provided in a cylinder downstream of the vortex flow generating blade 2, and an outer periphery 8a of the cone-shaped mesh 8 is provided. The dust collection system is characterized in that a dust-containing air outlet 3 is provided in communication with the cylindrical inner wall 1b.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the dust collecting system of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a first embodiment of a dust collection system according to the present invention, wherein A is a horizontal cyclone, and dust-containing air flowing into one end inside a cylinder 1a of a cylinder 1 arranged horizontally. Vortex generating blades 2 for vortexing and collecting dust on the cylindrical inner wall 1b by centrifugal force to flow into the cylinder.
Of the dust-containing air 3 communicating with the cylindrical inner wall 1b on the downstream side of the
, And an air outlet 4 from which dust is removed from the other end of the cylinder 1 is provided.

Reference numeral B denotes a first blower connected to the air outlet 4 of the horizontal cyclone A from which dust has been removed. In addition, instead of the first blower B, although not shown, a blower that blows dust-containing air from one end of the cylinder 1 may be provided. C is a vertical cyclone, and the upper end of a cylinder 6 having a vertically arranged suction port 5 through which the dust-containing air discharged from the dust-containing air discharge port 3 communicated with the cylindrical inner wall 1b of the horizontal cyclone A is sucked. Provided in the tangential direction of the outer periphery 6a, vortexing the dust-containing air, collecting dust on the inner wall of the cylinder by centrifugal force and flowing downward along the inner wall of the cylinder, and discharging the dust-free air at the center of the cylinder from the outlet 7 It is configured to be. D is a second blower connected to the air outlet 7 of the vertical cyclone C from which dust has been removed.

A first blower B is connected to a discharge port 4 of the horizontal cyclone A from which dust has been removed, and the vertical cyclone C is connected to a discharge port 3 of the horizontal cyclone A for dust-containing air. Although a dust collection system in which a second blower D is connected to an exhaust port 7 of the vertical cyclone C from which dust has been removed is well known, the present invention is directed to exhausting dust-containing air of the horizontal cyclone A. The pressure of the dust-containing air discharged from the outlet 3 is set to be 1.5 times or more lower than the pressure of the dust-containing air flowing from one end of the cylinder 1 of the horizontal cyclone A. The strength of the negative pressure is 1.5 times or more,
The stronger, the better. In order to make the pressure of the dust-containing air discharged from the dust-containing air outlet 3 of the horizontal cyclone A stronger than the pressure of the dust-containing air flowing from one end of the cylinder 1 of the horizontal cyclone A, as described above, The magnitude of the negative pressure of the second blower D is made larger than the magnitude of the negative pressure of the first blower B. By doing so, no dust remains in the air discharged from the air outlet 4 of the horizontal cyclone A from which the dust has been removed.
If the amount of dust-containing air flowing from one end of the cylinder 1 of the horizontal cyclone A is, for example, 100, the amount of dust-containing air discharged from the outlet 3 of the horizontal cyclone A is 5
The amount of air discharged from the air outlet 4 of the horizontal cyclone A from which dust has been removed is about 95.

FIG. 2 shows a second embodiment of the dust collecting system according to the present invention, particularly a horizontal cyclone A. The horizontal cyclone A is provided with a cylinder 1 disposed at one end of a cylinder 1 disposed horizontally.
a, a vortex-generating blade 2 is provided in the preceding stage for vortexing the dust-containing air that has flowed in and collecting the dust on the cylindrical inner wall 1b by centrifugal force to flow into the cylinder. A dust-containing air discharge port 3 of the preceding stage is provided in communication with the downstream cylindrical inner wall 1b, and a next-stage vortex flow generating blade 2 'is provided in the downstream cylinder of the dust-containing air discharge port 3 of the preceding stage. An exhaust port 3 'for the next stage of dust-containing air is provided in communication with the inner cylindrical wall 1b' on the downstream side of the next stage of the vortex generating blade 2 '. Are provided, and the dust-containing air discharged from these discharge ports is sucked into the vertical cyclone C. By configuring the horizontal cyclone A in this manner, dust that has not been discharged from the dust-containing air discharge port 3 in the preceding stage can be completely discharged from the dust-containing air discharge port 3 ′ in the next stage.

FIG. 3 shows a dust collecting system according to a third embodiment of the present invention, in particular, a horizontal cyclone A. This horizontal cyclone A has a cylinder 1 disposed at one end of a cylinder 1 disposed horizontally.
a, a vortex-generating blade 2 is provided in the preceding stage for vortexing the dust-containing air that has flowed in and collecting the dust on the cylindrical inner wall 1b by centrifugal force to flow into the cylinder. A cone-shaped mesh 8 protruding toward the vortex flow generating blade 2 is provided in a downstream cylinder.
And a discharge port 3 for dust-containing air at the preceding stage is provided so as to communicate with the outer periphery 8a and the cylindrical inner wall 1b. By providing the cone-shaped mesh 8 as described above, the fine dust is condensed by the cone-shaped mesh 8 to become coarse dust, and is discharged from the dust-containing air outlet 3 in the preceding stage. In this embodiment, the cone-shaped mesh 8 is provided only on the downstream side of the vortex generating blade 2 of the preceding stage, but may be provided on the downstream side of the vortex generating blade 2 'of the next stage.

[0012]

According to the first aspect of the present invention, as described above, the dust-containing air that has flowed into the one end cylinder of the laterally arranged cylinder is swirled to separate the dust by the centrifugal force. A swirl generating blade is provided for flowing into the cylinder while being collected on the inner wall, and a discharge port for dust-containing air is provided in communication with the cylindrical inner wall on the downstream side of the swirl generating blade, and dust is removed from the other end of the cylinder. Upper end of a cylinder in which a horizontal cyclone having an air discharge port and a suction port for vertically sucking dust-containing air discharged from a discharge port of the dust-containing air communicating with an inner wall of the cylinder of the horizontal cyclone are vertically arranged. Provided in the tangential direction of the outer periphery, vortexing the dust-containing air, collecting dust on the inner wall of the cylinder by centrifugal force, flowing downward along the inner wall of the cylinder, and discharging the air from the center of the cylinder from which the dust has been removed through the outlet Vertical cyclone and the vertical cyclone And a blower connected to a discharge port of the air from which the dust has been removed. The pressure of the dust-containing air discharged from the discharge port of the dust-containing air of the horizontal cyclone is introduced from one end of the cylinder of the horizontal cyclone. Since the dust collection system has a negative pressure of 1.5 times or more the pressure of the dust-containing air, dust remains in the air discharged from the dust-free air outlet of the horizontal cyclone. I had nothing to do.

According to a second aspect of the present invention, as described above, the horizontal cyclone is configured to vortex the dust-containing air that has flowed into one end of a horizontally disposed cylinder to generate dust. Is provided on the inner wall of the cylinder with the centrifugal force, and the former is provided with a vortex generation blade for flowing into the cylinder. The next-stage vortex-generating blades are provided in the cylinder on the downstream side of the dust-containing air discharge port of the previous stage. A discharge port is provided, and if necessary, several stages of vortex generating blades and a discharge port for dust-containing air are provided, and the dust-containing air discharged from these discharge ports is sucked into a vertical cyclone. Dust that has not been discharged from the dust-air outlet is discharged to the next-stage dust-containing air outlet. It can be completely discharged.

According to a third aspect of the present invention, as described above, the horizontal cyclone is configured to vortex the dust-containing air that has flowed into one end of a horizontally disposed cylinder to generate dust. Vortex flow generating blades for flowing into the cylinder while collecting them on the inner wall of the cylinder by centrifugal force, and a cone-shaped mesh protruding toward the vortex flow generating blade side is provided in a cylinder downstream of the vortex flow generating blades. Since the outlet of the dust-containing air is provided in communication with the outer periphery of the mesh and the inner wall of the cylinder, the fine dust is condensed by the cone-shaped mesh to become coarse dust and is discharged from the outlet of the dust-containing air. In addition, the fine dust is not discharged from the other end of the horizontal cyclone from which the dust is removed.

[Brief description of the drawings]

FIG. 1 is a diagram showing a first embodiment of a dust collection system of the present invention.

FIG. 2 is a sectional view showing a second embodiment of the horizontal cyclone of the dust collection system of the present invention.

FIG. 3 is a sectional view showing a third embodiment of the horizontal cyclone of the dust collection system of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cylinder 1a One end inside a cylinder 1b'1b Cylinder inner wall 2, 2 'Swirl generating blade 3', 3 Dust-containing air outlet 4 Dust-removed air outlet 5 Inlet for dust-containing air to be sucked 6 Vertically arranged cylinder 6a Upper end outer periphery 7 Dust-removed air outlet 8 Conical mesh 8a Outer periphery A Horizontal cyclone B First blower C Vertical cyclone D Second blower

Claims (3)

[Claims] An inside of a cylinder (1) at one end of a cylinder (1) arranged laterally.
a) is provided with a vortex generating blade (2) for vortexing the dust-containing air that has flowed in and collecting dust on the inner wall (1b) of the cylinder by centrifugal force to flow into the cylinder. A discharge port (3) for dust-containing air is provided in communication with the cylindrical inner wall (1b) on the downstream side of 2), and a discharge port (4) for air from which dust has been removed is provided from the other end of the cylinder (1). The configured horizontal cyclone A and a suction port (5) for sucking dust-containing air discharged from a dust-containing air discharge port (3) communicating with a cylindrical inner wall (1b) of the horizontal cyclone A are vertically arranged. Tangential to the outer periphery (6a) of the upper end of the cylinder (6), and vortex the dust-containing air to collect the dust on the inner wall of the cylinder by centrifugal force and flow downward along the inner wall of the cylinder to remove the dust at the center of the cylinder. Vertical cyclone C configured to discharge the removed air from the discharge port (7)
And a blower D connected to a discharge port (7) of the vertical cyclone C from which dust has been removed, and dust-containing air discharged from the dust-containing air discharge port (3) of the horizontal cyclone A. From the one end of the cylinder (1) of the horizontal cyclone A from the pressure of the dust-containing air.
A dust collection system characterized by a negative pressure of 5 times or more. 2. The horizontal cyclone A is configured such that the dust-containing air that has flowed into the cylinder (1a) at one end of a horizontally disposed cylinder (1) is vortexed, and the dust is centrifugally forced into the cylindrical inner wall (1). 1b) is provided with a vortex generating blade (2) at the front stage for flowing into the cylinder while collecting the dust-containing air at the downstream side of the vortex generating blade (2) at the downstream side. The next-stage vortex generating blade (2 ') is provided in the cylinder downstream of the dust-containing air discharge port (3) of the preceding stage, and the next-stage vortex generating blade (2) is provided. ') Downstream of the cylindrical inner wall (1
b ') is provided with a discharge port (3') for dust-containing air at the next stage, and several stages of vortex generating blades and discharge ports for dust-containing air are provided as necessary. 2. The dust collection system according to claim 1, wherein said dust-containing air is sucked into a vertical cyclone C. 3. The horizontal cyclone A is configured such that the dust-containing air that has flowed into the cylinder (1a) at one end of a horizontally disposed cylinder (1) is vortexed, and the dust is centrifugally forced into the cylindrical inner wall (1). Vortex generating blades (2) for flowing into the cylinder while collecting in 1b)
And a cone mesh (8) protruding toward the vortex flow generating blade (2) is provided in a cylinder downstream of the vortex flow generating blade (2), and an outer periphery (8) of the cone mesh (8) is provided.
The dust collection system according to claim 1 or 2, wherein a dust-containing air outlet (3) is provided in communication with a) and the cylindrical inner wall (1b).