JPH0629494B2 - Water-saving air circulation type road cleaning vehicle - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a water-saving air circulation type road cleaning vehicle, and in particular, fine powder contained in exhaust gas without being sprayed with dry dust on the road. The present invention relates to a water-saving air circulation type road cleaning vehicle that can efficiently collect dust with a fine dust recovery device.

[Prior Art] Conventionally, this kind of thing is as follows.

The conventional suction-type road surface cleaning vehicle is a method of dust-proofing by water spraying the road surface when cleaning the road surface.

[Problems to be Solved by the Invention] The conventional techniques described above have the following problems.

When dust is prevented by water spraying on the road surface, the fine dust adheres to the road surface and the recovery rate is poor.If water is sprayed in the early winter and early spring, when the dust is generated in cold regions, the road surface freezes and traffic safety is impaired. There was a problem that it was not preferable.

Further, if cleaning is performed without water spraying on the road surface, there is a problem that fine dust among the dust that has been collected and scattered by the gutter brush and that is once collected is discharged into the atmosphere from the exhaust port.

The present application has been made in view of such problems of the conventional technology, and an object of the present application is to provide the following things.

That is, in order to solve the above problems, a water-saving air circulation type road cleaning vehicle having the following mechanism was generated.

[Means for Solving the Problems] In order to achieve the above object, the present invention is as follows.

That is, in the case of the present application, the dust suction hood 2 opening downward at the front position of the gutta brush 1 is communicated with the hopper 9 arranged above through the suction pipe 3 and the suction port 7, The circulation type mud suction device 4 arranged at the rear position of the gutta brush is communicated with the hopper 9 through the mud suction pipe 5 and the suction port 6, and the hopper 9 has an appropriate capacity having a bottom plate having a lower rear side. The upper part is a front partition plate 9A.
The upper chamber 9B is formed via the rear rockwool filter A10, and the buffer plate 8 hung below the rear end of the front partition plate 9A corresponds to the suction port 7 and the suction port 6. The rear chamber 9 in the upper chamber 9B.
B2 and the front chamber 9B1 communicate with each other through a passage 11, a bag filter 12 is arranged in the front chamber 9B1, the bag filter and the blower 14 are connected by a passage 13, and the discharge drawn from the blower 14 is discharged. The lower end opening of the pipe 15 is connected to the circulation type mud suction device 4, and an air filter 32, a small blower 33, and a switching valve 24 are arranged in the middle of the exhaust pipe 16 branched from the discharge pipe 15. The tip thereof is connected to the fine dust collecting device 17, and an exhaust air cushion plate 18 is arranged in the fine dust collecting device 17 so as to correspond to the opening of the exhaust pipe 16, and A fine spray nozzle 19 is provided on the side wall,
A rock wool filter B20 is stretched in a two-stage state at the upper opening of the fine dust collecting device 17, and the vicinity of the bottom of the fine dust collecting device 17 and the hopper 9 are connected by a sludge pipe 22. The tip of the air pipe 25 connected to the switching valve 24 is connected to an air nozzle 26 via a rod cylinder 27.
Is a water-saving air circulation type road cleaning vehicle inserted in the bag filter 12.

[Operation] The dust on the road is blown up by discharging the exhaust gas from the blower 14 from the discharge pipe 15 before and after the suction port in the circulation type mud suction device 4, and through the mud suction pipe 5, the hopper 9 is discharged.
It is transported by air.

In order to prevent dust from blowing through due to inertial force at that time,
The buffer plate 8 relaxes the hopper 9 and promotes sinking and deposition.

Also, the dust wound up by the gutta brush 1 is
It is sucked into the hopper 9 from the dust suction hood 2 through the suction pipe 3.

Large dust that is not deposited and accumulated in the hopper 9 is filtered by the rock wool filter A10.

The large particle size dust that has passed through the rock wool filter A10 passes through the passage 11 and is filtered by the bag filter 12.

Further, the small particle dust passing through the bag filter 12 is sucked into the blower 14 through the passage 13.

The sucked small particle dust is separated by the centrifugal force by the rotation of the blower 14, and the small particle dust is further separated to the outside of the blower and the fine dust is separated to the inside.

The separated small particle dust is transferred to the hopper 9 through the discharge pipe 15 to the hopper 9 together with the dust on the road by air.

On the other hand, the fine powder dust is sucked by the small blower 33 provided in the exhaust pipe 16 and filtered by the air filter 32, and the fine dust that cannot be collected enters the fine dust collector 17 through the intake pipe 16.

The fine dust collected in the fine dust collecting device 17 is decelerated and diffused by the exhaust air cushion plate 18, and at the same time, water is sprayed by the fine spray nozzle 19 provided at an appropriate place on the side wall of the fine dust collecting device 17 to obtain the fine dust collecting device. Fine dust remaining in the air passing through 17 is trapped and settled, and among the water droplets trapped the fine dust, those that do not settle are collected by the rock wool filter B20 of the fine dust collection device 17 and settled on the bottom of the fine dust collection device. Then, the muddy water mixed with the fine dust is sucked and collected into the hopper 9 through the mud discharge pipe 22.

Therefore, clean air that does not include fine dust is discharged into the atmosphere through the rock wool filter B20.

To recover the function when the bag filter 12 is clogged, a bag filter cleaning / reproducing device is installed and the switching valve 2
The air switched by 4 is an air nozzle 26 provided inside the bag filter 12 (discharging side) via an air pipe 25.
The dust that has been ejected from the bag filter 12 and adhered to the bag filter 12 is blown off to clean the bag filter 12.

The air nozzle 26 is moved forward and backward by the rod cylinder 27 to perform surface cleaning of the bag filter 12.

The dust blown off from the dust discharge door 28 to the hopper 9
Will be recovered in.

[Embodiment of the Invention] 1 is a known gutter brush, which is disposed on the lower surface of a known road cleaning vehicle.

Reference numeral 2 denotes a dust suction hood, which opens downward at the front position of the gutta brush and communicates with a hopper 9 arranged above through a suction pipe 3 and a suction port 7.

Reference numeral 4 denotes a circulation type mud suction device arranged at the rear position of the gutta brush, which communicates with a hopper 9 through a mud suction pipe 5 and a suction port 6.

Therefore, the hopper 9 is configured to have an appropriate capacity having a bottom plate whose rear portion is low, and the upper portion is a front partition plate 9A.
The upper chamber 9 through the rear rockwool filter A10
B is formed.

Reference numeral 8 denotes a buffer plate that is hung downward from the rear end of the front partition plate 9A, and this buffer plate corresponds to the suction port 7 and the suction port 6.

Reference numeral 11 denotes the rear chamber 9B2 and the front chamber 9 in the upper chamber 9B.
It is a passage communicating with B1.

12 is a bag filter disposed in the front chamber 9B1,
13 is a passage connecting the bag filter and the blower 14, and 15 is a discharge pipe drawn out from the blower 14,
The lower end opening is connected to the circulation type mud suction device 4.

Reference numeral 16 is an exhaust pipe branched from the discharge pipe 15, and an air filter 32 and a small blower 3 are provided in the middle of the exhaust pipe 16.
3. A switching valve 24 is provided, and its tip is connected to the fine dust collecting device 17.

Reference numeral 18 denotes the exhaust pipe 16 in the fine dust collecting device 17.
Exhaust cushioning plate disposed so as to correspond to the opening of the
Is a fine spray nozzle arranged on the side wall of the fine dust collecting apparatus 17, 21 is a water supply pipe connected to this spray nozzle, 20 is a two-stage state in the upper opening of the fine dust collecting apparatus 17, Rock wool filter B stretched,
Reference numeral 22 is a sludge discharge pipe that connects the vicinity of the bottom of the fine powder dust collecting apparatus 17 and the hopper 9, and 23 is a suction port for this sludge discharge pipe.

Reference numeral 25 is an air pipe connected to the switching valve 24. The tip of the air pipe is connected to an air nozzle 26 via a rod cylinder 27. Further, the air nose 26 is
It is inserted in the above-mentioned bag filter 12.

In the figure, 26A is an air pipe and 26B is a guide.

Reference numeral 28 denotes a dust discharge door provided between the front chamber 9B1 and the hopper 9.

29 is a water tank disposed on the lower surface of the hopper 9;
Is a sludge discharge door provided on the back surface of the hopper 9.

Reference numeral 31 is an inspection door provided on the upper surface of the passage 13.

[Effects of the Invention] Since the present invention is configured as described above, it has the effects described below.

The present invention has the cleaning and dustproof functions with the above-mentioned structure,
The following effects can be obtained.

(1) Since the air circulation type mud suction device blows air from the front and rear of the suction port and raises and sucks dust on the road, cleaning accuracy can be improved without contacting the road surface.

(2) Since the road surface is not sprinkled, the road surface does not freeze in cold regions, and it is possible to operate all year round, including the early winter and early spring season when dust is generated.

(3) By installing a dust suction hood, the dust that is wound up by the gutta brush can be sucked in, and diffusion on the road can be prevented.

(4) A bag filter cleaning / reproducing device is installed to blow off dust adhering to the filter by the blower air.
The filter cleaning and regeneration effect is good, and maintenance is easy.

(5) The exhaust volume is small because it is divided into exhaust and circulation at the blower outlet.

Furthermore, by installing a fine dust collecting device, fine dust contained in the exhaust gas can be captured and the exhaust air can be cleaned.

(6) It is a water-saving type that uses less water than conventional road surface watering.

(7) Since the amount of water used can be reduced, the water tank capacity can be reduced and the effective loading capacity of the hopper can be improved.

Also, when the dust is discharged, it is easy to discharge and the work efficiency is improved because the dust is dry.

[Brief description of drawings]

FIG. 1 is a schematic view of a cleaning dust purification system, FIG. 2 is a conceptual diagram of a water-saving air circulation type road surface cleaning vehicle, FIG. 3 is a perspective view in which a part of a bag filter is cut away, and FIG. Fig. 5 is an explanatory view of the action of the bag filter, Fig. 6 is a perspective view of the fine dust collecting device with one part cut away, and Fig. 7 is a perspective view of the air circulation type mud suction device part. is there. 1 ... Gutta brush, 2 ... Dust suction hood, 3 ... Suction pipe, 4 ... Circulating mud suction device, 5 ... Mud suction pipe, 6 ... Suction port, 7 ... Suction port, 8 ... Buffer plate, 9 ... Hopper, 10 ... Rockwool filter A, 11 ... Passage, 12 ... Bag filter, 13 ... Passage, 14 ... Blower, 15 ... Discharge pipe, 16 ... Exhaust pipe, 17 ...... Fine dust collecting device, 18 …… Exhaust air buffer plate, 19 …… Fine spray nozzle, 20 …… Rockwool filter B, 21 …… Water supply pipe, 22 …… Mud pipe, 23 …… Intake port, 24 ...... Switching valve, 25 …… Air pipe, 26 …… Air nozzle, 27 …… Rod cylinder, 28 …… Dust discharge door, 29 …… Water tank, 30 …… Sludge discharge door, 31 …… Inspection door, 32 …… Air filter, 33 …… Small blower.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Akira Matsumoto 2-1-1 Wakakusa, Oiwake-cho, Yufutsu-gun, Hokkaido (56) References JP-A-61-274003 (JP, A) JP-B-55-45124 (JP, B2)

Claims (1)

[Claims] 1. A dust suction hood 2 opening downward at a front position of the gutta brush 1 is communicated with a hopper 9 arranged above through a suction pipe 3 and a suction port 7, and the gutta brush is provided. The circulation type mud suction device 4 arranged at the rear position of
The hopper 9 is communicated with the hopper 9 through the mud suction pipe 5 and the suction port 6, and the hopper 9 is configured to have an appropriate capacity having a lower bottom plate, and the upper part has a front partition plate 9A and the rear rockwool filter. An upper chamber 9B is formed through A10,
The buffer plate 8 hanging downward from the rear end of the front partition plate 9A is configured to correspond to the suction port 7 and the suction port 6, and the rear chamber 9B2 and the front chamber 9B in the upper chamber 9B.
1, a bag filter 12 is arranged in the front chamber 9B1, a bag filter 12 and a blower 14 are connected by a passage 13, and a lower end of a discharge pipe 15 drawn out from the blower 14 An exhaust pipe 1 whose opening is connected to the circulation type mud suction device 4 and which is branched from the discharge pipe 15
An air filter 32, a small blower 33, and a switching valve 24 are provided in the middle of 6, and the tip of the air filter 32 is connected to a fine dust collecting device 17, and an opening of the exhaust pipe 16 is provided in the fine dust collecting device 17. The exhaust air cushion plate 18 is disposed so as to correspond to the above, the fine spray nozzle 19 is disposed on the side wall portion of the fine dust collecting apparatus 17, and the upper surface opening of the fine dust collecting apparatus 17 has a two-stage state. The rock wool filter B20 is stretched by the
The bottom of 7 and the hopper 9 are communicated with each other by a sludge pipe 22, and the tip of an air pipe 25 connected to the switching valve 24 is connected to an air nozzle 26 via a rod cylinder 27. The nozzle 26 is inserted into the bag filter 12 described above, which is a water-saving air circulation type road surface cleaning vehicle.