CN216538969U - Ash conveying fault emergency switching system of dry dedusting electrostatic precipitator - Google Patents
Ash conveying fault emergency switching system of dry dedusting electrostatic precipitator Download PDFInfo
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- CN216538969U CN216538969U CN202122627422.XU CN202122627422U CN216538969U CN 216538969 U CN216538969 U CN 216538969U CN 202122627422 U CN202122627422 U CN 202122627422U CN 216538969 U CN216538969 U CN 216538969U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
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Abstract
The utility model provides an ash conveying fault emergency switching system of dry dedusting electrostatic precipitator, including the ash discharge pipe, the accident push-pull valve, the two pendulum valves of accident, the ash storage tank, the dolly, weighing sensor, laser range finder, set up urgent ash discharge mouth and installation ash discharge pipe in the bottom of the built-in ash conveyor of electrostatic precipitator, accident push-pull valve and the two pendulum valves of accident are installed on the ash discharge pipe, the ash storage tank is on the dolly, the dolly operation is in the below of the built-in ash conveyor of electrostatic precipitator, weighing sensor is installed to the bottom of ash storage tank, be provided with laser range finder on the stroke route of dolly, weighing sensor, laser range finder, the accident push-pull valve, the two pendulum valves of accident and dolly motor are connected with control system PLC electricity. When the ash conveying system of the electrostatic dust collector fails, the system is automatically switched to the emergency switching system, so that the new system can be replaced in time after the ash conveying system fails, fine ash in the dust collector can be discharged and recovered in time, and the normal operation of the dust collector is ensured.
Description
Technical Field
The utility model relates to the technical field of metallurgy, in particular to an ash conveying fault emergency switching system of a dry-method dust removal electrostatic precipitator.
Background
In recent years, a converter smelting primary flue gas purification dry dedusting technology is in domestic rise and rapid development, and the dry dedusting has the advantages of low equipment operation power, high dedusting efficiency, easy dust recovery and the like, and is favored by domestic iron and steel enterprises. However, in the practical application of domestic iron and steel enterprises, the dry dust removal technology electrostatic precipitator fine ash conveying system has more faults, is positioned below the electrostatic precipitator and mainly comprises mechanical conveying equipment such as an electric precipitator belly zipper machine, a gate valve, a double-flap valve, a secondary chain conveyor, a bucket elevator conveyor and the like. The failure causes mainly include: the device is used for blocking dust of a fine dust conveying system, blocking a gate valve, breaking a double-pendulum valve, breaking a chain type scraper conveyor and a bucket elevator chain, when all transmission parts are blocked, a large amount of dust is accumulated in the dust conveying system and cannot be removed below an electric dust collector, the accumulated dust is treated by stopping production, closing a gas recovery system, replacing air in the dust collector and waiting for the temperature of the dust collector to be naturally cooled to below 50 ℃, the treatment process period is long, the starting rate of the device is greatly influenced, and the enterprise benefit is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an ash conveying fault emergency switching system of a dry dust removal electrostatic dust collector, wherein a set of accident switching device is arranged below the electrostatic dust collector and on the front side of a fine ash double-pendulum valve, a set of accident ash receiving trolley and a control system are designed on the lower portion of the electrostatic dust collector, the trolley consists of a transverse trolley and an ash storage tank, a vertical bell mouth is arranged above the ash storage tank, when the fine ash conveying system of the electrostatic dust collector fails, the ash conveying system is switched emergently, and a new system can discharge and recover dust in time, so that the normal operation of the dust collector is ensured.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a dry process dust removal electrostatic precipitator defeated grey trouble emergency switching system, includes row's ash pipe, accident push-pull valve, the two pendulum valves of accident, storage ash jar, dolly, weighing sensor, laser range finder, sets up urgent ash discharge mouth and installation row's ash pipe in electrostatic precipitator embeds the bottom of ash transporter, accident push-pull valve and the two pendulum valves of accident are installed on row's ash pipe, the storage ash jar is on the dolly, the dolly operation is in the below of the built-in ash transporter of electrostatic precipitator, weighing sensor is installed to the bottom of storage ash jar be provided with laser range finder on the stroke route of dolly, weighing sensor, laser range finder, accident push-pull valve, the two pendulum valves of accident and dolly motor are connected with control system PLC electricity.
And a track is laid below the ash discharge pipe, and the trolley runs on the track.
The ash storage tank is provided with a lifting lug.
And the ash inlet at the upper end of the ash storage tank is a vertical bell mouth.
Compared with the prior art, the utility model has the beneficial effects that:
according to the ash conveying fault emergency switching system for the dry dedusting electrostatic dust collector, when the ash conveying system of the electrostatic dust collector fails, the system is automatically switched to the emergency switching system, so that a new system can be replaced in time after the ash conveying system fails, fine ash in the dust collector can be discharged and recovered in time, and the normal operation of the dust collector is guaranteed. The problems that after the ash conveying system fails, the treatment process period is long and the starting rate of equipment is reduced are effectively solved, and the electrostatic dust collection system plays a certain role in improving the stable operation of the electrostatic dust collection system.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an electrical schematic diagram of a PLC control system of the present invention;
FIG. 3 is an electrical schematic diagram of the trolley motor control of the present invention.
In the figure: 1. the device comprises an ash storage tank, 2 an accident gate valve, 3 an accident double-swing valve, 4 an electrostatic dust collector, 5 a fine ash gate valve, 6 a fine ash external ash conveying machine, 7 a fine ash double-swing valve, 8 an internal ash conveying machine, 9 an ash discharge pipe, 10 a trolley, 11 a weighing sensor, 12 a rail and 13 a laser ranging sensor.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1-3, the system for switching ash conveying faults of the dry dedusting electrostatic precipitator comprises an ash discharge pipe 9, an accident gate valve 2, an accident double-swing valve 3, an ash storage tank 1, a trolley 10, a weighing sensor 11 and a laser range finder 13, wherein an emergency ash discharge port is formed in the bottom of an ash conveying machine 8 arranged in the electrostatic precipitator 4, the ash discharge pipe 9 is installed on the ash discharge pipe 9, the accident gate valve 2 and the accident double-swing valve 3 are installed on the trolley 10, the trolley 10 runs below the ash conveying machine 8 arranged in the electrostatic precipitator 4, the weighing sensor 11 is installed at the bottom of the ash storage tank 1, the laser range finder 13 is arranged on a stroke path of the trolley 10, and the weighing sensor 11, the laser range finder 13, the accident gate valve 2, the accident double-swing valve 3 and a trolley 10 motor are electrically connected with a control system PLC.
A track 12 is laid below the ash discharge pipe 9, and the trolley 10 runs on the track 12.
The ash storage tank 1 is provided with a lifting lug.
And the ash inlet at the upper end of the ash storage tank 1 is a vertical bell mouth.
The utility model designs an emergency ash discharging device below an electrostatic dust collector 4, which consists of an emergency action accident gate valve 2 and an accident double-swing valve 3. The emergency action accident gate valve 2 and the accident double-swing valve 3 are connected into a PLC control system by taking valve position detection signals as input signals and taking valve control signals of the accident gate valve 2 and the accident double-swing valve 3 as output signals. The trolley motor is controlled in a frequency conversion mode, the position of the trolley 10 is detected by using a laser range finder 13 (the model is a laser range finder-LMD 2430-A), the trolley 10 is controlled to run back and forth, and a position detection signal and a trolley control signal are connected into a PLC system. The trolley is provided with a weighing sensor 11 (type: weighing sensor-CZL-YB-11) of the ash storage tank 1, and the weighing sensor is used for detecting the weight of the ash storage tank 1, and the maximum weight of the ash storage tank 1 cannot exceed an allowable value.
A fault signal of an ash conveying system of the electrostatic dust collector and a production signal of the converter are accessed into the PLC system; and outputting an operation signal of the emergency switching system, and performing interlocking control on the ash conveying system and the emergency switching system to avoid simultaneous actions of the two systems.
The emergency switching system sets a manual/automatic operation mode, when the fault signal of the ash conveying system of the electrostatic dust collector is 1 in the automatic operation mode, the trolley 10 carrying the ash storage tank 1 automatically operates to the position below the accident double-swing valve 3 from an initial position (an ash storage tank lifting position), and during operation, the trolley realizes acceleration and deceleration control according to an actual detection position; after the trolley is in place, the accident gate valve 2 is automatically opened, and after 10 seconds, the accident double-swing valve 3 starts to act, and two valve plates which are arranged in series in the accident double-swing valve 3 are alternately opened and closed, so that one valve plate is ensured to be normally closed. The dust exhaust system is isolated from the atmosphere.
The ash storage tank weighing system monitors the weight of the ash storage tank 1 in real time, when the weight of the ash storage tank 1 exceeds a preset alarm value, a system picture gives an alarm, an alarm located on the site gives an alarm to prompt, and the accident gate valve 2 and the accident double-pendulum valve 3 are automatically closed. And clicking a tank replacing operation button according to the production condition on site, enabling the trolley 10 to move to a lifting position, clicking a completion confirmation button on site after the ash storage tank 1 is replaced, and enabling the trolley 10 loaded with the ash storage tank 1 to move to the position below the accident double-swing valve 3 from an initial position (ash storage tank lifting position).
Claims (4)
1. The utility model provides a dry process dust removal electrostatic precipitator defeated grey trouble emergency switching system which characterized in that, including row's ash pipe, accident push-pull valve, accident double pendulum valve, ash storage tank, dolly, weighing sensor, laser range finder, set up urgent ash discharge opening and installation row's ash pipe in the bottom of the built-in ash conveyor of electrostatic precipitator, accident push-pull valve and accident double pendulum valve are installed on row's ash pipe, the ash storage tank is on the dolly, the dolly operation is in the below of the built-in ash conveyor of electrostatic precipitator, weighing sensor is installed to the bottom of ash storage tank be provided with laser range finder on the stroke route of dolly, weighing sensor, laser range finder, accident push-pull valve, accident double pendulum valve and dolly motor are connected with control system PLC electricity.
2. The ash conveying failure emergency switching system of the dry dedusting electrostatic precipitator as claimed in claim 1, wherein a rail is laid below the ash discharge pipe, and the trolley runs on the rail.
3. The ash conveying fault emergency switching system of the dry dedusting electrostatic precipitator of claim 1, wherein a lifting lug is arranged on the ash storage tank.
4. The ash conveying failure emergency switching system of the dry dedusting electrostatic precipitator as claimed in claim 1, wherein the ash inlet at the upper end of the ash storage tank is a vertical bell mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122627422.XU CN216538969U (en) | 2021-10-29 | 2021-10-29 | Ash conveying fault emergency switching system of dry dedusting electrostatic precipitator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122627422.XU CN216538969U (en) | 2021-10-29 | 2021-10-29 | Ash conveying fault emergency switching system of dry dedusting electrostatic precipitator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216538969U true CN216538969U (en) | 2022-05-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122627422.XU Active CN216538969U (en) | 2021-10-29 | 2021-10-29 | Ash conveying fault emergency switching system of dry dedusting electrostatic precipitator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216538969U (en) |
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2021
- 2021-10-29 CN CN202122627422.XU patent/CN216538969U/en active Active
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