JP4237917B2 - Dust removal equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a dust removal facility used for removing contaminants flowing into a sewage treatment plant, a relay pumping station, a drainage station, and the like.
[0002]
[Prior art]
In a sewage treatment plant, a relay pumping plant, a drainage plant site, etc., a dust removal facility is provided to remove contaminants that flow in with the inflowing water.
[0003]
As an example, the dust removal equipment provided in the drainage station is shown in FIG. 3. As shown in FIG. 3, the belt surface is formed as a fine mesh structure in the middle of the elongated water channel 3 extending from the position of the inflow gate 1 to the position of the sand basin 2. In addition, a fine dust removal conveyor 5 having a large number of rakes 4 attached at a required interval in the longitudinal direction is arranged at a required inclination angle in the vertical direction so that the lower half side is submerged and the upper half side protrudes above the water channel 3. In addition, the periphery of the upper half portion of the dust removing conveyor 5 is covered with a cover casing 6, and a discharge port 7 that opens downward is provided at the upper end of the cover casing 6. A hopper-like chute 8 is provided continuously to drop and supply the foreign substances toward the carry-out conveyor 9 as an installed carry-out device, and the foreign substances flowing into the water channel 3 together with the drainage from the upstream side are removed. And scooped by rake 4 Beya 5, dust is dropped from the upper end of the conveyor 5 through the discharge port 7, is guided on the discharge conveyor 9 by chute 8, it is constituted such that it is carried out to the off-board by discharge conveyor 9. Reference numeral 10 denotes a bypass passage of the inflow gate 1 part, and 11 denotes a discharge pump installed in the sand basin 2.
[0004]
[Problems to be solved by the invention]
However, in the above dust removal equipment, the fine dust removal conveyor 5 is adopted, and the size and installation interval of the chute 8 and the carry-out conveyor 9 are set so as to correspond to the small dust that is picked up by the fine dust removal conveyor 5. For this reason, when large contaminants are scooped up by the dust removal conveyor 5, a clogging phenomenon may occur in the chute 8 part or the carry-out conveyor 9 depending on the shape and size of the large contaminants. In particular, in the case of a long object, it is likely to be in a suspended state in the chute 8, and each time it is necessary to open and remove the cover of the side plate of the cover casing 6, it is necessary to manage and maintain the facility as a whole. The above problem will occur.
[0005]
In order to solve the above problems, it is conceivable to install a coarse dust removal equipment upstream of the fine dust removal conveyor 5, but there are problems in terms of installation location, maintenance problems, or economical. Because of the problem, only the fine dust removal conveyor 5 is often installed.
[0006]
In view of this, the present invention is intended to enable sorting and carrying out large and small contaminants scooped up by a fine dust removal conveyor without causing clogging.
[0007]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention provides a dust removing conveyor in which a fine dust removing conveyor is arranged in a vertical direction at a required inclination angle so that the lower half side is submerged in the middle of a water channel through which drainage flows. The upper half of the cover casing is surrounded by a cover casing, and a discharge port and a chute continuous with the discharge port are provided below the upper end of the cover casing. In the dust removal equipment that drops to the discharge port and guides it to the carry-out device through the chute, the upper end side rear plate of the cover casing is provided with an outlet for large contaminants, and the lower end edge of the outlet has the above-mentioned A catcher plate that is sized so as to extend over a required area above the discharge port is pivotally supported so as to be rotatable in the vertical direction, and an actuator for rotating the catcher plate in the vertical direction is capped. In addition, a sensor is installed at the required position of the upper end of the cover casing to detect large contaminants that have been scooped up by the dust removal conveyor and carried to the vicinity of the upper end. Based on this, the controller is configured to send an operation command to the actuator.
[0008]
When large contaminants are picked up by the dust removal conveyor and carried near the upper end, they are detected by a sensor, and an operation command is sent from the controller to the actuator based on that signal. When the large contaminants are dropped and received by the catcher plate afterward, the catcher plate is displaced upright by the operation of the actuator, and the large contaminants are automatically passed through the outlet. Are taken out.
[0009]
Also, instead of an actuator that operates in response to an operation command from the controller based on a signal from the sensor, a manual jack is provided, and the catcher plate is rotated by manually operating the manual jack. Manufacturing costs and running costs can be reduced.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0011]
1 (a), (b), and (c) show an embodiment of the present invention. In the dust removing apparatus having the same configuration as shown in FIG. 3, the fine dust removing conveyor 5 passes through the upper end portion. A large foreign substance take-out device 13 is provided which receives the large foreign substances 12 falling before reaching the chute 8 and sorts them out of the cover casing 6 and carries them out.
[0012]
Referring to FIG. 1 (B) and (C), the large foreign matter take-out device 13 will be described in detail. The upper side of the upper discharge port 7 of the cover casing 6 that surrounds the upper half side of the dust removal conveyor 5 is shown in FIGS. A large contaminant outlet 14 is provided on the upper end side rear plate 6a of the cover casing 6 facing the downstream side of the water channel 3 along the left-right direction as the conveyor width direction. 14, a catcher plate 15 formed in a grid lattice shape having a coarse mesh as a length that can project a required amount above the discharge port 7 is arranged along the left-right direction on the inner side of the lower end edge of the discharge port 7. The shaft 16 protruded in the left and right direction at both ends of the base portion of the plate 15 is supported by a bracket 17 fixed to the inner side surface of the upper end side rear surface plate 6a of the cover casing 6, and in the vicinity of the shaft 16 portions at both ends. Operation lever 18 are attached at right angles, and the front end portions of the respective operation levers 18 are projected out of the cover casing 6 through the through holes 19 provided in the upper rear side plate 6a of the cover casing 6, and the front end portions of the respective operation levers 18 are provided. Further, the rod 20a end of the electric cylinder 20 as an actuator installed downward is connected to the outer surface of the upper end side rear plate 6a of the cover casing 6, respectively, and the catcher is operated via the operation lever 18 by the expansion / contraction operation of both the electric cylinders 20. The plate 15 can be rotated in the vertical direction with the shafts 16 at both ends as fulcrums, and the large contaminants 12 scooped up by the rake 4 of the dust removing conveyor 5 are immediately before passing the upper end of the conveyor. Thus, the photoelectric sensor 21 is installed at a required position of the side plate 6b of the cover casing 6, and the signal of the photoelectric sensor 21 is Is provided with a controller 22 for giving an operation command to the electric cylinder 20, and when the large foreign matter 12 is detected by the photoelectric sensor 21, the catcher plate 15 is protruded above the discharge port 7 for a predetermined time. By making it stand so as to face the outlet 14, the large contaminants 12 that have passed through the upper end of the dust removal conveyor 5 and dropped are received by the catcher plate 15, and carried out of the cover casing 6 through the outlet 14. This is a configuration that can be used.
[0013]
When the dust removal conveyor 5 is in operation, the basic posture is that the catcher plate 15 is erected as shown by a two-dot chain line in FIG. Therefore, when small impurities flow into the water channel 3 and arrive at the position of the dust removal conveyor 5, the upper end of the dust removal conveyor 5 is scooped up by the rake 4 as in the conventional method shown in FIG. By being passed through the section, it is dropped to the discharge port 7 and guided to the carry-out conveyor 9 by the chute 8 and carried out. At this time, since the position of the photoelectric sensor 21 is set so as not to detect small impurities, an operation command is not sent from the controller 22 to the electric cylinder 20.
[0014]
On the other hand, when the large contaminants 12 flow into the water channel 3 and arrive at the position of the dust removing conveyor 5, they are scooped up by the rake 4, but the scooped large contaminants 12 are near the upper end of the dust removing conveyor 5. When it reaches, the presence of the photoelectric sensor 21 is detected, so that an operation command is sent from the controller 22 to the electric cylinder 20. In this case, when the rod 20a of the electric cylinder 20 in the extended state is contracted, the catcher plate 15 located at the two-dot chain line in FIG. Since it protrudes to a required area above the outlet 7, the large foreign matter 12 that has dropped through the upper end of the dust removal conveyor 5 is received by the catcher plate 15. At this time, the small foreign matter located before and after the large foreign matter 12 and the small foreign matter attached to the large foreign matter 12 are empty in the area in front of the catcher plate 15 or in the catcher plate 15 itself. And then dropped into the chute 8. Thereafter, the rod 20a of the electric cylinder 20 is extended by an operation command from the controller 22, whereby the catcher plate 15 is erected, whereby the large contaminant 12 on the catcher plate 15 is covered. It is carried out of the cover casing 6 through the outlet 14 of the casing 6. Therefore, the clogging phenomenon of the chute 8 and the carry-out conveyor 9 due to the large foreign matter 12 can be prevented in advance.
[0015]
As described above, the large dust removing device 13 is installed near the upper end of the fine dust removing conveyor 5 so that the large dust 12 and the small dust can be sorted and carried out. Therefore, compared to the case where coarse dust removal equipment is installed, the entire dust removal equipment can be reduced in manufacturing and construction costs, can be reduced in size, can be easily maintained, and can be operated automatically. Management is also easy.
[0016]
Next, FIG. 2 shows another embodiment of the present invention. In the same configuration as shown in FIGS. 1 (a), (b) and (c), the photoelectric sensor 21 and the controller 22 are unnecessary, and Instead of the electric cylinder 20 as an actuator, a manual jack 24 is installed in which the rod 24a moves up and down by rotating the handle 23.
[0017]
In the case of the embodiment of FIG. 2, when an operator monitors the vicinity of the upper end of the dust removal conveyor 5 through the outlet 14 and confirms that the large foreign matter 12 has been scooped up, By rotating the handle 23 in a required direction, the catcher plate 15 is displaced and overhangs to the upper area of the discharge port 7. After receiving the large contaminant 12 by the catcher plate 15, the handle 23 is By rotating in the reverse direction, the catcher plate 15 is erected and the large contaminants 12 are taken out from the outlet 14. According to this embodiment, the manufacturing cost and running cost can be made lower than in the case of the embodiment shown in FIGS.
[0018]
In the embodiment shown in FIGS. 1A, 1B and 1C, the electric cylinder 20 is used as an actuator for operating the catcher plate 15, but a hydraulic cylinder, an air cylinder, etc. In addition, the actuator may be installed only on one side depending on the right and left width size of the catcher plate 15, and other sensors may be used in place of the photoelectric sensor 21, and the present invention. Of course, various changes can be made without departing from the scope of the present invention.
[0019]
【The invention's effect】
As described above, according to the dust removal equipment of the present invention, a fine dust removal conveyor is arranged in the vertical direction at a required inclination angle so that the lower half side is submerged in the middle of the water channel through which the drainage flows. The upper half of the dust removal conveyor is surrounded by a cover casing, and a discharge port and a chute continuous with the discharge port are provided below the upper end of the cover casing. In the dust removal equipment which is dropped from the section to the discharge port and led to the carry-out device through the chute, an outlet for large foreign matters is provided on the upper end side rear plate of the cover casing, and the lower end edge of the outlet An actuator for pivotally supporting a catcher plate having a size capable of projecting above a required area above the discharge port so as to be rotatable in the vertical direction and rotating the catcher plate in the vertical direction. A sensor is connected to the catcher plate, and a sensor is installed at the required position of the upper end of the cover casing to detect large contaminants that are scooped up by the dust removal conveyor and carried to the vicinity of the upper end. Since the controller is configured to send an operation command to the actuator based on the above, when a large-sized foreign object is lifted up by the dust removal conveyor, the actuator is operated by a command from the controller based on the sensor signal. The catcher plate overhangs the upper area of the discharge port and is displaced to receive large contaminants, and then the catcher plate is displaced upright to automatically sort out large contaminants through the outlet. Therefore, the clogging of the chute and the unloading device due to large foreign matters can be prevented in advance, Compared to the case where an eye dust removal facility is installed, the entire facility can be reduced in manufacturing cost and construction cost, can be made compact, and maintenance and operation management can be easily performed. In place of the actuator that operates in response to the operation command from the controller based on the signal from the sensor, a manual jack is provided, and the catcher plate is rotated by the manual jack. It exhibits excellent effects such as lower running costs.
[Brief description of the drawings]
FIG. 1 shows an embodiment of the dust removal equipment of the present invention. (A) is a schematic side view of the whole, (B) is an enlarged view of part A in (A), and (C) is in (B). It is a BB direction arrow directional view.
FIG. 2 is a partially enlarged view showing another embodiment of the present invention.
FIG. 3 is a schematic side view showing an example of a conventional dust removal equipment.
[Explanation of symbols]
3 Waterway 5 Dust removal conveyor 6 Cover casing 6a Upper end side rear plate 7 Discharge port 8 Chute 9 Unloading conveyor (unloading device)
12 Large foreign matter 14 Take-out port 15 Catcher plate 16 Shaft 20 Electric cylinder (actuator)
21 Photoelectric sensor (sensor)
22 Controller 24 Manual jack

Claims (2)

A fine dust removal conveyor is arranged in the vertical direction at a required inclination angle so that the lower half side is submerged in the middle of the water channel for drainage, and the upper half side of the dust removal conveyor is surrounded by a cover casing, In addition, a discharge port and a chute continuous with the discharge port are provided on the lower side of the upper end of the cover casing, and the foreign matter scooped up by the dust removal conveyor is dropped from the upper end of the dust removal conveyor to the discharge port, and is guided to the unloading device through the chute. In such a dust removal facility, the upper end side rear plate of the cover casing is provided with an outlet for large-sized foreign matters, and the lower end edge of the outlet has a size that can be extended to a required area above the outlet. The catcher plate is pivotally supported so as to be rotatable in the vertical direction, and an actuator for rotating the catcher plate in the vertical direction is connected to the catcher plate. A control is installed at the required position of the upper end of the sing to detect large contaminants that are picked up by the dust removal conveyor and carried to the vicinity of the upper end, and an operation command is sent to the actuator based on the signal from the sensor A dust removal facility characterized by having a configuration comprising a vessel. 2. The dust removal equipment according to claim 1, wherein a manual jack is provided in place of the actuator that operates in response to an operation command from the controller based on a signal from the sensor, and the catcher plate is rotated by the manual jack.

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