JP2510046B2 - Continuous suction type dust collecting dust recovery device with suction box - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a continuous suction type dust collecting dust collecting apparatus using a suction box, and more particularly to a dust collecting apparatus for a bag filter type dust collecting machine having a plurality of bag chambers.

[0002]

2. Description of the Related Art In a bag filter type dust collector, dust in a dust collecting gas is captured by a filter cloth and the dust is stored in a primary hopper (for example, JP-A-57-207522).
JP-A-57-207523). In a dust collector having a plurality of bag chambers, in order to recover the dust in the primary hopper, conventionally, (1) as shown in FIG. 3, a fixed amount cut-out valve 3 below the primary hopper 2 provided below the bag chamber 1 is used. At conveyor 4
The dust is quantitatively discharged into the secondary hopper 5, transported into the secondary hopper 5, stored, and then collected by the suction wheel 6. (2) While sucking with the suction wheel 6 as shown in FIG.
The outside air is taken out by the constant amount cut-out valve 3 for each chamber by the suction force of the suction wheel 6 and discharged to the suction nozzle 7 for mixing with the dust to be collected. (3) The suction wheel 6 is directly connected to the primary hopper, and the suction wheel 6 is replaced for each chamber and collected. It was carried out by the method of.

[0003]

In the above method (1), dust clogging is likely to occur in the quantitative cut-out valve 3 and the conveyor 4, a reduction in operation rate and labor required for the clogging are required. However, there is a problem in that maintenance costs are required due to its complexity. In the method of (2), as in the case of (1), the fixed amount cut-out valve 3 is clogged with dust, and the suction nozzle 7 introduces the outside air by the suction force of the suction wheel 6 to mix with the dust. ,
There is a problem that the balance of mixing with the dust discharged from the fixed amount cut-out valve 3 is lost, the dust is clogged in the suction nozzle 7, and the dust is clogged, which lowers the operation rate and requires labor for processing when clogged. . In the method (3), since the suction port of the suction wheel 6 is manually reconnected to each hopper, there is a problem that it requires a long working time and poor workability.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the deterioration of the operating rate due to the dust clogging, the improvement of the workability, and the improvement of the maintainability in the above-mentioned prior art. were provided each primary hopper at the bottom of the bug chamber, here after primary reserving the dust, the dust collector dust collecting device for sucking recovering dust suction wheel through the transport pipe, respectively the bottom of each primary hopper the suction box is provided, and a transportation pipeline and the suction box communicates with transport branch pipe having a switching valve, air still inside each of the outlet side of the suction box the suction box
Communicates with the air inlet and the primary hopper
Hopper pressure introduction port is provided that, in the transportation pipeline under the transportation pipeline
A pressure gauge in the vicinity of the flow side suction port is for summarized as continuous suction type dust collector dust collecting device by the suction box, characterized in that the auxiliary air inlet and provided respectively on the most upstream side of the transportation pipeline.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG.
2 is a schematic diagram illustrating the present invention, and FIG. 2 is a schematic diagram illustrating a main part structure of the present invention. As shown in FIG. 1 and FIG. 2, the present invention provides primary hoppers 2A, 2B, ... Under a plurality of bag chambers 1A, 1B ,. After the primary storage, the transportation pipe 8 having the suction port 9 at the end is communicated with the hose 18 of the suction wheel 6 through the suction port 9, and the dust is sucked and collected by the suction wheel 6. In the device, suction boxes 10A, 10B, ... Are respectively provided under the primary hoppers 2A, 2B, ..., and a suction pipe 10A, 10B, ... and a transportation pipe 8 are provided with switching valves 13A, 13B ,. 17A, 17B,
... communicated with each suction boxes 10A, 10B, ... out of
On the mouth side , inside the suction boxes 10A, 10B, ...
Air blowing opening 11A to blow the air to force, 11B, ...
When the primary hopper 2A, 2B, hopper pressure guide <br/> inlet 12A for communicating ... two, 12B, ... and provided, transport arrangement for the transportation pipeline 8
A pressure gauge 14 is provided near the suction port 9 on the downstream side of the pipe 8.
The auxiliary air introducing port 16 is provided on the most upstream side.

The dust collection according to the present invention is performed as follows. The hose 18 of the suction wheel 6 is connected to the suction port 9 provided in the transportation pipe 8 to start suction. When suction is started, the switching valve 13 is opened for one room, for example, only 13A, and at the same time, air is blown.
By forcibly feeds that air from the write port 11A, the dust in the primary hopper 2A is good discharging property is mixed with air. Further, by opening the switching valve 13A, the suction force of the suction wheel 6 is transmitted to the suction box 10A,
Dust is sucked through the transport pipe 8 and the primary hopper 2A
Collect the dust inside. When the dust in the hopper 2A becomes empty, the display of the pressure gauge 14 becomes low, so that it is possible to confirm that the dust collection is completed. At that time, the switching valve 13 of the primary hopper 2A that has completed the collection is closed, and the next primary The dust in the hopper, for example, 2B is collected by the same procedure.
The primary hopper 2 in all rooms is operated by remote control of the operation of the switching valve 13 or by automatic operation of judging from the pressure indication value of the pressure gauge 14.
The dust in A, 2B, ... Is continuously collected.

When the indication value of the pressure gauge 14 becomes higher than that during the suction work, it is judged that the transportation pipe 8 is clogged, and the auxiliary air introducing port 16 installed in the transportation pipe 8 is opened to introduce the outside air. However, by increasing the fluidity of the dust in the transportation pipe 8, dust clogging in the transportation pipe 8 is prevented. When the indicated value of the pressure gauge 14 becomes normal, the auxiliary air inlet is automatically closed.

The air blowing ports 11A, 11B, ... Are arranged so that air is blown into the suction boxes 10A, 10B, ..., and the air blowing valves 15A, 15B ,. Then blow in the air. The dust in the primary hoppers 2A, 2B, ... naturally falls into the suction boxes 10A, 10B, ... And is agitated by the air sent from the air blowing ports 11A, 11B ,. . In addition, the hopper pressure introduction port 12
By arranging A, 12B, ... At appropriate positions rearward of the air blowing ports 11A, 11B, dust clogging near the outlets of the suction boxes 10A, 10B ,. Hopper pressure inlet is primary hopper 2
The air pressure inside and the air pressure inside the suction box 10 become uniform
It is installed like this.
Will be easier.

By this apparatus, air is forcibly blown in the suction box and the switching valve is opened while stirring the dust so that the suction wheel sucks the dust. Also,
By remotely operating the switching valve installed in each room, it is possible to continuously collect dust in each hopper.

[0010]

EFFECTS OF THE INVENTION According to the present invention, (1) it is possible to prevent the occurrence of dust clogging in the dust collecting apparatus and improve the operating rate. (2) It is possible to continuously collect dust in each chamber simply by operating the valves remotely, and it is possible to shorten the working time and improve the workability. (3) Since the device configuration is simplified, the maintainability is excellent, and the equipment cost at the time of new installation is lower than that of the conventional technology. The effect of is obtained.

[Brief description of drawings]

FIG. 1 is a schematic diagram illustrating the present invention.

FIG. 2 is a schematic diagram illustrating a main part structure of the present invention.

FIG. 3 is a diagram showing a conventional technique.

FIG. 4 is a diagram showing a conventional technique.

[Explanation of symbols]

1 Bag Room 2 Primary Hopper 3 Fixed-quantity Cut-out Valve 4 Conveyor 5 Secondary Hopper 6 Suction Wheel 7 Suction Nozzle 8 Transport Piping 9 Suction Port 10 Suction Box 11 Air Inlet 12 Hopper Pressure Inlet 13 Switching Valve 14 Pressure Gauge 15 Air Inlet Valve 16 Auxiliary air inlet

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shigeru Enomoto 1 Kimitsu, Kimitsu-shi, Chiba Nippon Steel Co., Ltd. Inside the Kimitsu Works (72) Hidehiro Kashiwamura 1-Kimizu, Kimitsu, Chiba Shin-Nihon Kimitsu Steel Works Ltd.

Claims (1)

(57) [Claims] 1. A provided respectively primary hopper at the bottom of the plurality continuously arranged a bug chamber, here After primary reservoir dust, transportation pipeline collected dust collecting device for sucking recovering dust suction wheel through the In each of the primary hoppers, a suction box is provided, and each suction box and the transportation pipe are connected by a transportation branch pipe having a switching valve. Further , air is provided in the suction box at the outlet side of each suction box.
Communicates with the air inlet and the primary hopper
Hopper pressure introduction port is provided that, in the transportation pipeline under the transportation pipeline
A pressure gauge in the vicinity of the flow side suction opening, transporting the continuous suction type dust collector dust collecting device by the suction box, characterized in that provided most upstream of the auxiliary air inlets each pipe.