CN219244301U - Structure for interlocking of discharging dust removing fan and discharging outlet air valve - Google Patents
Structure for interlocking of discharging dust removing fan and discharging outlet air valve Download PDFInfo
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- CN219244301U CN219244301U CN202320500078.4U CN202320500078U CN219244301U CN 219244301 U CN219244301 U CN 219244301U CN 202320500078 U CN202320500078 U CN 202320500078U CN 219244301 U CN219244301 U CN 219244301U
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- interlocking
- removing fan
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Abstract
The utility model provides a structure of interlocking a furnace outlet dust removing fan and a furnace outlet air valve, and relates to the technical field of furnace outlet dust removing fans. In order to solve the problem that the furnace outlet dust removing fan and the furnace outlet air door are not associated together in the prior art, the furnace outlet dust removing fan always operates at power frequency to cause high energy consumption, the utility model provides a structure for interlocking the furnace outlet dust removing fan and the furnace outlet air door, which is characterized by comprising a pneumatic valve, a frequency converter and a PLC (programmable logic controller), wherein the pneumatic valve is fixedly connected with a valve turning plate of the furnace outlet air door, the frequency converter is arranged on the furnace outlet dust removing fan, the PLC is arranged in a control box, the signal output end of the PLC is electrically connected with the pneumatic valve and the frequency converter, and the switch of the pneumatic valve is controlled by the start-stop interlocking of the furnace outlet dust removing fan. The structure of the interlocking of the furnace outlet dust removal fan and the furnace outlet air valve has the effects of energy conservation and consumption reduction.
Description
Technical Field
The utility model relates to the technical field of furnace outlet dust removal fans, in particular to a structure of interlocking a furnace outlet dust removal fan and a furnace outlet air valve.
Background
The calcium carbide furnace is the main equipment for producing calcium carbide, and generally, each calcium carbide furnace is provided with three furnace outlet dust removal fans, when the calcium carbide is discharged, an operator pulls open a furnace outlet air door with the weight of 50 kg in a high-temperature environment at about 100 ℃, so that the labor intensity of the operator is high and a great potential safety hazard exists in the operation process. In addition, because the furnace outlet dust removing fan is not associated with the furnace outlet air door, no matter whether calcium carbide is discharged or not, the furnace outlet dust removing fan is always in a power frequency running state, so that the electric energy loss is serious.
Disclosure of Invention
The utility model aims to provide a structure for interlocking a furnace outlet dust removing fan and a furnace outlet air valve, so as to solve the problem that the furnace outlet dust removing fan and the furnace outlet air valve are not associated together in the prior art, and the furnace outlet dust removing fan always operates at power frequency to cause high energy consumption.
In order to achieve the above purpose, the present utility model provides the following innovative technical solution:
the utility model provides a structure of dust removal fan of going out of stove and outlet damper interlocking which characterized in that: the device comprises a pneumatic valve, a frequency converter and a PLC controller, wherein the pneumatic valve is fixedly connected with a valve turning plate of a furnace outlet air door, the frequency converter is arranged on a furnace outlet dust removal fan, a signal output end of the PLC controller is electrically connected with the pneumatic valve and the frequency converter, and the switch of the pneumatic valve is controlled by the start and stop interlocking of the furnace outlet dust removal fan.
The PLC controller is fixedly arranged in the control box.
The pneumatic valve comprises a cylinder, a pull rod, a manual zipper and a valve turning plate, wherein the valve turning plate comprises a center shaft fixedly arranged on the valve turning plate, a piston rod of the cylinder is fixedly connected with one end of the manual zipper and one end of the pull rod, the other end of the manual zipper is a free end, the other end of the pull rod is fixedly connected with the center shaft of the valve turning plate, the pull rod is arranged on the outer side of the middle section of an air inlet pipeline of the discharging dust removing fan and is arranged in parallel with the air inlet pipeline, the valve turning plate is movably arranged inside the middle section of the air inlet pipeline of the discharging dust removing fan through the center shaft, and the cylinder is connected with the signal output end of the PLC.
The size of the valve turning plate is adapted to the interior of the air inlet pipeline of the furnace outlet dust removing fan.
Through the technical scheme, the utility model achieves the following technical effects:
1. the manual valve of the outlet air door is changed into a pneumatic valve, and the valve is opened and closed automatically and remotely in normal time, so that the risk of manually opening the outlet air door is reduced, and the operation safety is improved.
2. The pneumatic valve of the furnace outlet air door is interlocked with the furnace outlet dust removing fan, and when the calcium carbide is discharged, the pneumatic valve is opened, and the furnace outlet dust removing fan is started; and after the calcium carbide is discharged, the pneumatic valve is closed, the discharge dust removing fan stops running, the problem of high energy consumption caused by the fact that the existing discharge dust removing fan is always in a power frequency running state is solved, and the effects of energy conservation and consumption reduction are achieved.
Drawings
FIG. 1 is a schematic illustration of a pneumatic valve of the present utility model;
FIG. 2 is a schematic diagram of the connection of the devices of the present utility model;
in the figure: 1-a cylinder; 2-a pull rod; 3-manual zippers; 4-turning plate of valve; 5-power supply; 6-pneumatic valve; 7-a PLC controller; 8-frequency converter; 9-a furnace discharging dust removing fan.
Detailed Description
The following describes the embodiments of the present utility model in further detail with reference to the drawings.
In order to solve the problem that the furnace outlet dust removing fan and the furnace outlet air door are not associated together in the prior art, and the furnace outlet dust removing fan always operates at power frequency to cause high energy consumption, the utility model provides a structure with an interlocking furnace outlet dust removing fan and a furnace outlet air door, which has the effects of energy conservation and consumption reduction.
The manual valve of the furnace outlet air door is modified according to actual conditions, the manual valve is changed into a pneumatic valve 6, the on-off button of the pneumatic valve 6 is directly led to a central control room control box, the pneumatic valve 6 and a frequency converter 8 of a furnace outlet dust removal fan 9 are interlocked through a PLC controller 7, and the PLC controller is connected with a power supply 5 as shown in fig. 2. When the calcium carbide is discharged from any furnace outlet, the switch of the pneumatic valve 6 is interlocked with the frequency converter 8 of the furnace discharging dust removing fan 9, and the frequency converter 8 regulates and controls the start and stop of the furnace discharging dust removing fan 9 by adjusting the frequency.
As shown in fig. 1, the pneumatic valve 6 is composed of a cylinder 1, a pull rod 2, a manual zipper 3 and a valve turning plate 4, the valve turning plate 4 comprises a central shaft fixedly arranged on the valve turning plate 4, a piston rod of the cylinder 1 is fixedly connected with one end of the manual zipper 3 and one end of the pull rod 2 together, the other end of the manual zipper 3 is a free end, the other end of the pull rod 2 is fixedly connected with the central shaft of the valve turning plate 4, the pull rod 2 is arranged outside the middle section of an air inlet pipeline of the discharging dust removing fan 9 and is parallel to the air inlet pipeline, the valve turning plate 4 is movably arranged inside the middle section of the air inlet pipeline of the discharging dust removing fan 9 through the central shaft, and the cylinder 1 is connected with the signal output end of the PLC controller 7.
As shown in fig. 1 and 2, when the calcium carbide is discharged, a pneumatic valve 6 is remotely started by pressing a button on a control box, a valve turning plate 4 is opened by using the pressure of a cylinder 1 so as to open a furnace outlet air door, a PLC controller 7 controls a frequency converter 8 of an interlocking discharging dust removing fan 9 to work after receiving a signal started by the pneumatic valve 6, and the time frequency converter 8 is about 120s from the starting loading frequency to 45Hz, so that the discharging dust removing fan 9 is started and the discharged calcium carbide is rapidly subjected to smoke suction and dust removal; after the calcium carbide is discharged, the pneumatic valve 6 is closed in a delayed mode, and after the PLC 7 receives a signal for closing the pneumatic valve 6, the frequency of the frequency converter 8 which is controlled to be interlocked is reduced to 5Hz, and at the moment, the discharging dust removing fan 9 is stopped.
The PLC controller 7 is commercially available, preferably 6ES7288-1SR20-0AA 1.
The control of the pneumatic valve 6 is classified into manual control and automatic control. When the tapping dust removal fan 9 starts to burn eyes, the change-over switch of the pneumatic valve 6 is controlled to be automatically controlled, the pneumatic valve 6 of the tapping air door is interlocked with the frequency converter 8 of the tapping dust removal fan 9, the pneumatic valve 6 is opened by pressing a valve opening button, the piston rod motion of the air cylinder 1 acts on the pull rod 2, and as the pull rod 2 is fixedly connected with the valve turning plate 4, the motion of the pull rod 2 drives the middle shaft of the valve turning plate 4 to rotate, and then the valve turning plate 4 rotates to open the tapping air door; meanwhile, the pneumatic valve 6 is opened to interlock the start of the discharging dust removing fan 9, and the discharging dust removing fan 9 removes dust from the discharged calcium carbide suction smoke; when the calcium carbide is discharged, the pneumatic valve 6 is closed by pressing a valve closing button in a delayed manner, and the valve turning plate 4 is finally driven to rotate by the movement of the piston rod of the air cylinder 1, so that a furnace outlet air door is closed; at the same time, the pneumatic valve 6 is closed to interlock the shutdown of the furnace discharging dust removing fan 9. In case of failure or power failure of the air cylinder 1, the pull rod 2 is pulled by the manual zipper 3 to rotate the valve turning plate 4, so that the opening or closing of the furnace mouth air door is realized.
Claims (4)
1. The utility model provides a structure of dust removal fan of going out of stove and outlet damper interlocking which characterized in that: the automatic control device comprises a pneumatic valve (6), a frequency converter (8) and a PLC (programmable logic controller) (7), wherein the pneumatic valve (6) is fixedly connected with a valve turning plate (4) of a furnace outlet air door, the frequency converter (8) is arranged on a furnace outlet dust removal fan (9), a signal output end of the PLC (7) is electrically connected with the pneumatic valve (6) and the frequency converter (8), and the pneumatic valve (6) is controlled by the start and stop of the furnace outlet dust removal fan (9).
2. The structure of interlocking a dust removal fan and a tapping valve according to claim 1, wherein: the PLC (7) is fixedly arranged in the control box.
3. The structure of interlocking a dust removal fan and a tapping valve according to claim 1, wherein: the pneumatic valve (6) comprises a cylinder (1), a pull rod (2), a manual zipper (3) and a valve turning plate (4), wherein the valve turning plate (4) comprises a center shaft fixedly arranged on the valve turning plate (4), a piston rod of the cylinder (1) is fixedly connected with one end of the manual zipper (3) and one end of the pull rod (2) together, the other end of the manual zipper (3) is a free end, the other end of the pull rod (2) is fixedly connected with the center shaft of the valve turning plate (4), the pull rod (2) is arranged on the outer side of the middle section of an air inlet pipeline of the furnace outlet dust removing fan (9) and is arranged in parallel with the air inlet pipeline, the valve turning plate (4) is movably arranged inside the middle section of the air inlet pipeline of the furnace outlet dust removing fan (9), and the cylinder (1) is connected with the signal output end of the PLC (7).
4. A structure of interlocking a dust removing fan for a furnace and a furnace outlet air valve according to claim 3, characterized in that: the size of the valve turning plate (4) is matched with the inside of an air inlet pipeline of the furnace discharging dust removing fan (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320500078.4U CN219244301U (en) | 2023-03-15 | 2023-03-15 | Structure for interlocking of discharging dust removing fan and discharging outlet air valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320500078.4U CN219244301U (en) | 2023-03-15 | 2023-03-15 | Structure for interlocking of discharging dust removing fan and discharging outlet air valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219244301U true CN219244301U (en) | 2023-06-23 |
Family
ID=86806196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320500078.4U Active CN219244301U (en) | 2023-03-15 | 2023-03-15 | Structure for interlocking of discharging dust removing fan and discharging outlet air valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219244301U (en) |
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2023
- 2023-03-15 CN CN202320500078.4U patent/CN219244301U/en active Active
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