JPH10238746A - Smut recovering facility in stack - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily recover smut by preventing scattering public nuisance of the smut in the case of internally cleaning a stack. SOLUTION: The smut sucked together with the air from the stack 1 and exhausted to a recovery tank 4 by a blower 7 is adhered to water droplets injected from an injection unit 11, stored at a bottom of the tank 4, and recovered by a recovering unit 19. Further, small smut retained in the air is adhered to baffle plates 16, 17 in a bent channel 18, recovered and only the air from which the smut is removed is externally exhausted from an exhaust port 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a recovery facility for recovering smut in a chimney.

[0002]

2. Description of the Related Art Conventionally, a large amount of smut (soot, ash, coal powder, etc.) accumulates at the bottom of a chimney as a result of cleaning the inside of the chimney. .

[0003]

However, in the above-mentioned conventional type, a large amount of dust is discharged from the manhole at the lower end of the chimney or the top of the chimney and scatters into the air when cleaning the inside of the chimney and packing the smut. Problem has occurred. In addition, since the smut packing operation is performed in a bad environment, the operator is forced to perform difficult operations in terms of safety and health.

Accordingly, an object of the present invention is to provide a smut collection facility in a chimney capable of preventing smut scattering pollution caused by cleaning the inside of the chimney and easily collecting the smut. It is intended for.

[0005]

Means for Solving the Problems To achieve the above-mentioned object, an invention according to claim 1 of the present invention is a recovery facility for recovering smut accumulated in a chimney, wherein A discharge device that sucks the smut in the chimney together with air and discharges the smut in the chimney to the collection tank arranged on the downstream side is connected to the opening formed at the lower end, and is connected to the collection tank and the downstream end of the discharge device. An inflow port, an exhaust port for exhausting the air flowing into the collection tank from the inflow port to the outside, and an injection device for injecting water into the air flowing from the inflow port to the exhaust port,
A collecting device for collecting the smut collected at the bottom of the collecting tank.

According to this, the smut in the chimney is sucked together with the air by the operation of the discharge device, is discharged from the opening of the chimney through the inflow port into the collection tank, and water is injected from the injection device in the collection tank. And mixed with water. as a result,
The smut contained in the air discharged into the collection tank from the inflow port adheres to water droplets, collects at the bottom of the collection tank, and is collected by the collection device. The air from which the smut has been removed in the recovery tank is exhausted from the exhaust port to the outside. In this way, the smut sucked together with the air can be separated into air and smut in the collection tank, and the smut can be collected and only the air can be exhausted to the outside. And from the chimney top can be prevented from flying into the air.

According to a second aspect of the present invention, a baffle plate for bending a flow path of air in the recovery tank is provided in the recovery tank, and the injection device is provided with an air flowing through the bent flow path bent by the baffle plate. And injecting water into the air flowing upstream of the bent flow path.

[0008] According to this, the smut is sucked together with the air, discharged into the collection tank, and water is injected from the injection device in the collection tank and mixed with the water. As a result, the smut contained in the air adheres to the water droplets, accumulates at the bottom of the collection tank, and is collected by the collection device. At this stage, even if a small amount of smut remains in the air, when the air subsequently flows through the curved flow path, the smut remaining in the air adheres to the surface of the baffle plate, and the water sprayed from the spray device Then, it is washed down from the surface of the baffle plate and collected at the bottom of the collecting tank, and collected by the collecting device. Thereby, the smut contained in the air can be almost completely recovered, and the recovery rate of the smut can be improved.

The invention according to claim 3 is characterized in that the recovery device comprises a recovery pipe provided at the bottom of the recovery tank and a recovery valve provided in the recovery pipe. Things.

[0010] According to this, by opening the collection valve, the smut accumulated at the bottom of the collection tank is collected through the collection pipe. The invention according to claim 4 is characterized in that the collection tank is mounted on a self-propelled vehicle.

According to this, since the collection tank can be easily moved by running the vehicle, the smut collection equipment can be moved easily and quickly, and the work for collecting the smut from a plurality of chimneys is performed. Time can be reduced.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2, reference numeral 1 denotes a chimney, and a smut collection facility 2 is used for cleaning the inside of the chimney 1. Hereinafter, the configuration of the smut collection facility 2 will be described.

The ash outlet 3, which is an opening formed at the lower end of the chimney 1, has a discharge device 5 that sucks the smut in the chimney 1 together with air and discharges the smut into a collection tank 4 arranged downstream. Is connected. That is, the discharging device 5
The air blower 7 includes a blower 7 detachably attached to the ash outlet 3 via a flange 6, and a flexible bellows-type duct 8 connected to the downstream side of the blower 7.

The recovery tank 4 is formed in a rectangular box shape, and an inlet 9 is formed on an upstream side surface of the recovery tank 4, and an exhaust port 10 is formed on a downstream upper surface of the recovery tank 4. The downstream end of the duct 8 is detachably connected to the inlet 9.
As a result, the air that has flowed in from the inflow port 9 is collected in the recovery tank 4.
The air is exhausted from the exhaust port 10 to the outside through the inside.

The recovery tank 4 is provided with an injector 11 for injecting water from above into the air flowing from the inlet 9 to the outlet 10. That is, the spraying device 11 includes a plurality of shower nozzles 12a, 12b, 12c having a large number of spray holes (not shown), and a water supply pipe 1 for supplying water to each of the shower nozzles 12a, 12b, 12c.
3 and a pump 15 that sucks water in the water supply tank 14 and discharges the water to the water supply pipe 13. The shower nozzles 12a, 12b, and 12c are arranged in three sets from the upstream side to the downstream side in the collection tank 4 and arranged in pairs in the width direction. The water in the water supply tank 14 is mixed with possible soda (sodium hydroxide), which is an example of a neutralizing agent.

A plurality of upper baffles 16 for bending the air flow path in the recovery tank 4 up and down are provided downstream in the recovery tank 4.
And a lower baffle plate 17 are provided. These baffle plates 16 and 17 are alternately mounted in a state where the upper part is inclined to the upstream side, and the baffle plates 16 and 17 form a bent flow path 18 in the recovery tank 4. And among the plurality of shower nozzle portions 12a, 12b, and 12c, the pair of shower nozzle portions 12c on the most downstream side are located above the bent flow path 18, and the remaining shower nozzle portions 12a, 12b
12 b is located on the upstream side of the bent flow path 18.

The recovery tank 4 has a bent channel 1 of the recovery tank 4.
The first to collect the smut accumulated at the bottom on the upstream side from 8
A recovery device 19 and a second recovery device 20 that recovers smut accumulated at the bottom of the recovery tank 4 below the bent channel 18 are provided. The first recovery device 19 includes a first recovery pipe 21 provided at the bottom of the recovery tank 4 and a first recovery valve 22 provided in the first recovery pipe 21. Similarly, the second recovery device 20 includes a second recovery pipe 23 provided at the bottom of the recovery tank 4 and a second recovery valve 24 provided in the second recovery pipe 23. I have.

The collection tank 4 includes a self-propelled truck 25.
It is mounted on a loading platform 26 of an example of a vehicle via a receiving platform 27. Hereinafter, the operation of the above configuration will be described.

When collecting the smut deposited on the bottom of the chimney 1 with the cleaning of the inside of the chimney 1,
The blower 7 of the smut recovery facility 2 is attached to the ash outlet 3. Then, by driving the pump 15, water in the water supply tank 14 is jetted from the shower nozzles 12 a, 12 b, and 12 c through the water supply pipe 13. further,
By driving the blower 7, the smut in the chimney 1 is sucked together with the air, flows from the ash outlet 3 through the duct 8, and is discharged through the inlet 9 into the collection tank 4.

As a result, the water jetted from the shower nozzles 12a and 12b and the air containing the smut are mixed in the collection tank 4, and as a result, the smut contained in the air adheres to the water droplets and is collected. Collect at the bottom of the tank 4.

At this stage, even if a small amount of smut remains in the air, when the air subsequently flows through the curved flow path 18, the smut remaining in the air is disturbed by each of the baffles 16 and 17.
Shower nozzle portion 12 attached to the surface of
The water sprayed from c flows down from the surfaces of the baffle plates 16 and 17 and accumulates at the bottom of the recovery tank 4. Furthermore, the bent channel 1
At the same time, the effect that smut slightly contained in the air flowing through the tank 8 directly adheres to the water droplets jetted from the shower nozzle portion 12c and accumulates at the bottom of the collection tank 4 is generated.

Then, the air flowing through the curved flow path 18 is exhausted from the exhaust port 10 to the outside. Further, by opening the first collection valve 22 and the second collection valve 24 periodically, the smut accumulated at the bottom of the collection tank 4 is removed together with water by the first collection valve 4.
It is collected through the collection pipe 21 and the second collection pipe 23, bagged, and treated as industrial waste. At this time, it is confirmed that the collected smut is neutralized by the possible soda mixed in the water supply tank 14.

As described above, the smut sucked together with the air can be separated into the air and the smut in the collection tank 4, and the smut can be collected and only the air can be exhausted to the outside. It is possible to prevent the air from flying from the mouth 3 or the top of the chimney 1 into the air. Furthermore, the collection tank 4
In the inside, the smut slightly remaining in the air is
The smut contained in the air can be almost completely collected because the smut can be collected above, and the smut collection rate can be improved.

After the duct 8 is removed from the inlet 9 and the upstream portion of the water supply pipe 13 is removed, the collection tank 4 can be easily moved by running the truck 25. Can be easily and quickly moved, and the work time for collecting the smut from the plurality of chimneys 1 can be reduced.

In the above embodiment, the blower 7 and the recovery tank 4
The inflow port 9 is connected to the bellows-type duct 8 which can be bent, so that even if the position of the collection tank 4 is shifted from the front of the ash outlet 3, the duct 8 is curved and the position of the collection tank 4 is changed. The shift is absorbed.

In the above embodiment, the ash outlet 3 of the chimney 1
Although the blower 7 which is the tip of the smut recovery equipment 2 is attached to the chimney 1, it may be attached to the manhole of the chimney 1. In the above embodiment, the blower 7 is provided at the upstream end of the duct 8, but may be provided in the middle of the duct 8 or at the downstream end of the duct 8.

In the above-described embodiment, the pump 15 and the water supply tank 14 are installed on the ground side. However, the pump 15 and the water supply tank 14 may be installed together with the recovery tank 4 on the carrier 26 of the truck 25 so as to be movable.

[0028]

As described above, according to the first aspect of the present invention, the air flowing into the recovery tank from the inflow port is mixed with the water injected from the injection device. The smut contained in the air adheres to the water droplets and accumulates at the bottom of the collection tank, and is collected by the collection device. Also,
The air from which the smut has been removed in the recovery tank is exhausted to the outside through an exhaust port. In this way, the smut sucked together with the air can be separated into air and smut in the collection tank, and the smut can be collected and only the air can be exhausted to the outside. And from the chimney top can be prevented from flying into the air.

According to the second aspect of the present invention, when the air flows through the curved flow path, the smut slightly remaining in the air adheres to the surface of the baffle plate and is further sprayed with water from the spray device. Since it is dropped from the surface and collected at the bottom of the collection tank and collected by the collection device, smut contained in the air can be almost completely collected, and the smut collection rate can be improved.

According to the third aspect of the invention, by opening the collection valve, the smut accumulated at the bottom of the collection tank is collected through the collection pipe. According to the invention described in claim 4, the collection tank can be easily moved by running the vehicle, so that the smut collection equipment can be moved easily and quickly, and the smut is collected from a plurality of chimneys. Work time can be reduced.

[Brief description of the drawings]

FIG. 1 is a partially cutaway side view of a smut recovery facility in a chimney according to an embodiment of the present invention.

FIG. 2 is a plan view of the smut recovery facility in the chimney.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Chimney 2 Smut collection equipment 3 Ash discharge opening (opening) 4 Collection tank 5 Discharge device 9 Inflow port 10 Exhaust port 11 Injection device 16, 17 Baffle plate 18 Curved flow path 19, 20 Collection device 21, 23 Collection pipe 22 , 24 Collection valve 25 Truck (vehicle)

Claims (4)

[Claims] 1. A collection facility for collecting smut accumulated in a chimney, wherein the smut in the chimney is sucked together with air and disposed on a downstream side in an opening formed in a lower end portion of the chimney. A discharge device connected to a downstream end of the discharge device, an exhaust port for exhausting air flowing into the collection tank from the inflow port to the outside, and an inflow port connected to the collection tank. A smut recovery facility in a chimney, comprising: an injection device for injecting water into air flowing from the outlet to an exhaust port; and a recovery device for recovering smut collected at the bottom of the recovery tank. 2. A recovery tank is provided with a baffle plate for bending an air flow path in the recovery tank, and the injection device includes: an air flowing through the bending flow path bent by the baffle plate; 2. A smut recovery facility in a chimney according to claim 1, wherein water is injected into air flowing further upstream than the water. 3. The collecting device according to claim 1, wherein the collecting device includes a collecting pipe provided at a bottom of the collecting tank and a collecting valve provided at the collecting pipe. 2. A smut recovery facility in the chimney according to 2. 4. The smut recovery facility in a chimney according to claim 1, wherein the recovery tank is mounted on a self-propelled vehicle.