Electric precipitation ash conveying system
By designing a dust removal of ash -removal and ash transmission system including ash bucket, warehouse pump, ash -mortar pipeline, gas supply pipeline, pressure monitoring device and controller, solve the ash accumulation of ash blocking pipes, monitoring methods in the traditional electric dust collector The problem of high energy consumption has realized the monitoring and transportation control of high -efficiency and low power ash.
Patent Information
- Application Number
- CN202420096374.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-16
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-01-16
AI Technical Summary
Traditional electrostatic precipitators are prone to accumulation of dust and pipe blockage. The monitoring method cannot accurately determine the ash level of the ash bucket, the ash energy consumption is high and the pipeline wears severely.
A dust removal system is designed, including ash buckets, pumps, ash -mortar pipes, gas supply pipelines, pressure monitoring devices and controllers. Monitor the internal pressure of the gray bucket through the pressure monitoring device. When the preset value is reached, the control warehouse pump and valve are turned on to achieve efficient transportation of the ash accumulation, and the ash mitigation pipeline is prevented from blocking the ash pipeline through regular anti -blowing pipes.
Effectively avoid the blocking of the ash -seeking road, reduce the energy consumption when transporting ash, reduce the wear of the pipeline, and increase the accurate monitoring and control of the ash level height.
Smart Images
Figure CN222401832U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of electrostatic precipitator, and in particular to an electrostatic precipitator ash conveying system. Background Art
[0002] An electrostatic precipitator is a device for purifying dusty gases, also known as an electrostatic precipitator, and is usually used in the ash hopper cleaning operation of an economizer.
[0003] At present, the traditional electrostatic precipitator is to pass high voltage direct current through two metal dust collecting electrodes and corona electrodes with large difference in curvature radius to form an electrostatic field sufficient to ionize the gas, so that the electrons, anions and cations generated after the gas ionization are adsorbed on the dust passing through the electric field, so that the dust acquires electric charge and obtains charged dust. Under the action of the electric field force, the charged dust moves to the electrode with opposite electric polarity and deposits on the electrode to achieve the purpose of separating dust and gas. The accumulated dust on the electrode falls off to the ash hopper after vibration, and the accumulated dust in the ash hopper is then transported to the ash storage through the ash conveying system.
[0004] However, the traditional electrostatic precipitator has the following technical problems:
[0005] 1. Dust accumulation and pipe clogging are likely to occur;
[0006] 2. The monitoring method is single, and it is impossible to accurately and efficiently judge the ash level in the ash hopper, resulting in high energy consumption for ash transportation;
[0007] 3. The ash conveying process is frequent, resulting in increased pipe wear. Utility Model Content
[0008] In view of the above problems, the present application provides an electrostatic precipitator and ash conveying system, which can realize high-efficiency and low-power consumption dust removal operation for the economizer ash hopper.
[0009] To achieve the purpose of this application, this application provides the following technical solutions:
[0010] The present application provides an electrostatic precipitator ash conveying system, comprising: an ash hopper, a silo pump, an ash conveying pipeline, an air supply pipeline, a pressure monitoring device, a controller and an ash storage bin;
[0011] The ash hopper is connected to the silo pump, and the silo pump is connected to the ash storage bin through the ash conveying pipeline;
[0012] The pressure monitoring device is embedded in the pressure monitoring point on the inner wall of the ash hopper and is used to monitor the internal pressure of the ash;
[0013] The air supply pipeline is connected to the silo pump through a first pipeline;
[0014] The controller is connected to the pressure monitoring device and the silo pump, and when the pressure value measured by the pressure monitoring device reaches a preset pressure value, the pneumatic plug door of the silo pump is controlled to open.
[0015] In a possible implementation, the air supply pipeline is connected to the ash conveying pipeline through a second pipeline.
[0016] In a possible implementation, the first pipeline has a first valve, and the first valve is connected to the controller. When the pressure value measured by the pressure monitoring device reaches a preset pressure value, the first valve is controlled to open.
[0017] In a possible implementation manner, the second pipeline has a second valve.
[0018] In a possible implementation, there are a plurality of second pipelines, and each of the second pipelines is arranged at the same interval.
[0019] In a possible implementation, the pressure monitoring point is located at the lower part of the inner wall of the ash hopper.
[0020] In a possible implementation, the pressure monitoring device is a pressure transmitter, and the opening direction of the pressure transmitter is downward.
[0021] In a possible implementation, the silo pump is connected to the ash conveying pipeline via a discharge valve.
[0022] In a possible implementation, the second valve is a solenoid valve, which is used for manual control of opening.
[0023] In a possible implementation, the second valve is an automatic plug valve, which is used to automatically open according to a preset time interval to automatically purge the ash conveying pipeline.
[0024] Beneficial effects:
[0025] The present application provides an electrostatic precipitator ash conveying system, which can avoid blockage of the ash conveying pipeline through timed backblowing, and can stop conveying when there is no ash in the ash hopper to reduce energy consumption, ensure that each conveying is full-pipe conveying, and reduce the number of wear times and wear speed. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] The accompanying drawings are used to provide a further understanding of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation to the present application.
[0027] Figure 1 A schematic diagram of the structure of an electrostatic precipitator and ash conveying system provided in an embodiment of the present application.
[0028] Figure numerals: 1-ash hopper; 2-silo pump; 3-ash conveying pipeline; 4-air supply pipeline; 5-pressure monitoring device; 6-controller; 7-ash storage bin. DETAILED DESCRIPTION
[0029] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the drawings in this application. Obviously, the described embodiments are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0030] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features; in the description of this application, unless otherwise specified, "plurality" means two or more.
[0031] Example 1
[0032] Figure 1 An electrostatic precipitator ash conveying system provided in an embodiment of the present application comprises: an ash hopper 1, a bin pump 2, an ash conveying pipeline 3, an air supply pipeline 4, a pressure monitoring device 5, a controller 6 and an ash storage bin 7;
[0033] The ash hopper 1 is connected to the silo pump 2, and the silo pump 2 is connected to the ash storage bin 7 through the ash conveying pipeline 3;
[0034] The pressure monitoring device 5 is embedded in the pressure monitoring point on the inner wall of the ash hopper 1 and is used to monitor the internal pressure of the ash hopper 1;
[0035] The air supply pipeline 4 is connected to the silo pump 2 through a first pipeline;
[0036] The controller 6 is connected to the pressure monitoring device 5 and the silo pump 2. When the pressure value measured by the pressure monitoring device 5 reaches a preset pressure value, the pneumatic gate of the silo pump 2 is controlled to open.
[0037] Among them, the electrostatic precipitator ash conveying system also includes: an ash collection device, including: an electrode group, a vibration mechanism; the motor group is two metal dust collecting electrodes and a corona electrode with a large difference in curvature radius. When high-voltage direct current is passed, an electrostatic field is formed to adsorb dust and deposit it on the electrode to achieve the purpose of separating dust and gas. The ash on the electrode falls off into the ash hopper after vibration.
[0038] Optionally, the controller 6 is connected to the pressure monitoring device 5 and the silo pump 2 by electrical connection or wireless connection.
[0039] Optionally, the preset pressure value is set according to the pressure value at the pressure monitoring point when the ash conveying pipeline 3 achieves full pipe transportation.
[0040] Optionally, the controller 6 controls the pneumatic plug door of the silo pump 2 to open, and closes the pneumatic plug door of the silo pump 2 after the opening time reaches a preset time.
[0041] Optionally, the controller is any one or more of a DCS controller and a DLC controller.
[0042] In a possible implementation, the air supply pipeline 4 is connected to the ash conveying pipeline 3 through a second pipeline.
[0043] In a possible implementation, the first pipeline has a first valve, and the first valve is connected to the controller 6. When the pressure value measured by the pressure monitoring device 5 reaches a preset pressure value, the first valve is controlled to open.
[0044] Optionally, the controller 6 controls the first valve to open, and closes the first valve after the opening time reaches a preset time.
[0045] In a possible implementation, the second pipeline has a second valve.
[0046] In a possible implementation, there are a plurality of second pipelines, each of which is arranged at the same interval. This implementation can realize backflushing of various parts of the ash conveying pipeline 3 to prevent the ash conveying pipeline 3 from being blocked.
[0047] In a possible implementation, the pressure monitoring point is located at the lower part of the inner wall of the ash hopper 1 .
[0048] Optionally, the pressure monitoring point is located on the inner wall 1.2 meters above the discharge port of the ash hopper 1.
[0049] In a possible implementation, the pressure monitoring device 5 is a pressure transmitter, and the opening direction of the pressure transmitter is downward to prevent dust blockage.
[0050] In a possible implementation, the silo pump 2 is connected to the ash conveying pipeline 3 via a discharge valve.
[0051] In a possible implementation, the second valve is a solenoid valve for manually controlling the opening. This implementation can be used to backflush the ash conveying pipeline 3 to prevent the ash conveying pipeline 3 from being blocked.
[0052] In a possible implementation, the second valve is an automatic plug valve, which is used to automatically open according to a preset time interval to automatically purge the ash conveying pipeline. This implementation can achieve automatic and timed backblowing of the ash conveying pipeline 3 to prevent the ash conveying pipeline 3 from being blocked.
[0053] Working principle:
[0054] A preset pressure value is set, and after the accumulated ash on the electrode is vibrated and falls off into the ash hopper 1, when the pressure monitoring device 5 detects that the pressure value is greater than or equal to the preset pressure value, the pneumatic plug door of the silo pump 2 is controlled to open, and the first valve is controlled to open, and the opening time reaches the preset time and then closes, and the accumulated ash in the ash hopper 1 is transported to the ash storage 7 through the ash conveying pipeline 3. The automatic plug valve is automatically opened according to the preset time interval, and the ash conveying pipeline is automatically purged to prevent the ash conveying pipeline 3 from being blocked.
[0055] In the several embodiments provided in the present application, it should be understood that the disclosed systems, modules and methods can be implemented in other ways. For example, the module embodiments described above are only schematic, for example, the division of units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, modules or units, which can be electrical, mechanical or other forms.
[0056] The above embodiments are only used to illustrate the technical solution of the present application, but not to limit it. The present application is not limited to the exact structure described above and illustrated in the accompanying drawings, and it cannot be determined that the specific implementation of the present application is limited to these descriptions. For ordinary technicians in the technical field to which the present application belongs, various changes and modifications made without departing from the concept of the present application should be deemed to belong to the protection scope of the present application.
Claims
1. An electrostatic precipitator ash conveying system, characterized in that: include: Ash hopper (1), silo pump (2), ash conveying pipeline (3), air supply pipeline (4), pressure monitoring device (5), controller (6) and ash storage bin (7); The ash hopper (1) is in communication with the silo pump (2), and the silo pump (2) is in communication with the ash storage bin (7) via the ash conveying pipeline (3); The pressure monitoring device (5) is embedded in a pressure monitoring point on the inner wall of the ash hopper (1) and is used to monitor the internal pressure of the ash hopper (1); The air supply pipeline (4) is connected to the silo pump (2) through a first pipeline; The controller (6) is connected to the pressure monitoring device (5) and the silo pump (2), and when the pressure value measured by the pressure monitoring device (5) reaches a preset pressure value, the pneumatic gate of the silo pump (2) is controlled to open.
2. The electrostatic precipitator ash conveying system according to claim 1, characterized in that: The air supply pipeline (4) is connected to the ash conveying pipeline (3) via a second pipeline.
3. The electrostatic precipitator ash conveying system according to claim 1, characterized in that: The first pipeline has a first valve, which is connected to the controller (6). When the pressure value measured by the pressure monitoring device (5) reaches a preset pressure value, the first valve is controlled to open.
4. The electrostatic precipitator ash conveying system according to claim 2, characterized in that: The second conduit has a second valve.
5. The electrostatic precipitator ash conveying system according to claim 4, characterized in that: There are a plurality of second pipelines, and each of the second pipelines is arranged at the same interval.
6. The electrostatic precipitator ash conveying system according to claim 1, characterized in that: The pressure monitoring point is located at the lower part of the inner wall of the ash hopper (1).
7. The electrostatic precipitator ash conveying system according to claim 1, characterized in that: The pressure monitoring device (5) is a pressure transmitter, and the opening direction of the pressure transmitter is downward.
8. The electrostatic precipitator ash conveying system according to claim 1, characterized in that: The silo pump (2) is connected to the ash conveying pipeline (3) via a discharge valve.
9. The electrostatic precipitator ash conveying system according to claim 4, characterized in that: The second valve is a solenoid valve, which is used for manual control of opening.
10. The electrostatic precipitator ash conveying system according to claim 4, characterized in that: The second valve is an automatic plug valve, which is used to automatically open according to a preset time interval to automatically purge the ash conveying pipeline.