Combustible and explosive dust removal device

Abstract

The utility model belongs to flue gas treatment technical field, concretely relates to an inflammable and explosive dust removal device, including dust remover main part, control system, real -time monitoring system and flame -retardant emergency cooling system, real -time monitoring system is used for monitoring the operation parameter situation of dust remover main part, flame -retardant emergency cooling system is used for cooling and flame -retardant to dust remover main part, control system with real -time monitoring system and flame -retardant emergency cooling system connection is used for receiving the signal of real -time monitoring system and controls the start -stop of flame -retardant emergency cooling system. The inflammable and explosive dust removal device of the application, through the collaborative operation of real -time monitoring system and flame -retardant emergency cooling system, can significantly reduce the risk of spontaneous combustion caused by high temperature dust heat accumulation on the surface of filter bag, effectively avoid filter bag damage, thereby greatly improve the safety of high temperature inflammable and explosive dust treatment process.

Description

Technical Field

[0001] This utility model relates to the technical field of flue gas treatment equipment, specifically to a flammable and explosive dust removal device. Background Technology

[0002] Baghouse dust collectors are highly efficient dry dust collection devices. With their superior dust removal performance, especially their extremely high collection efficiency for fine dust, they have become one of the most widely used and reliable devices in industrial flue gas purification technology. As the core component of a baghouse dust collector, the material, shape, and manufacturing process of the filter bag must be strictly selected according to the operating conditions to avoid filter bag damage or "bag clogging," thereby ensuring the long-term, efficient, and stable operation of the system.

[0003] In recent years, with increasingly stringent environmental protection requirements, the deep treatment of high-temperature dust-laden flue gas has become commonplace. Fine dust in the flue gas not only interferes with the stable operation of subsequent processes but also poses a potential risk of combustion and explosion, threatening equipment and personnel safety. Therefore, traditional baghouse dust collectors are typically used for pretreatment before the flue gas enters the deep treatment unit. However, after fine dust in high-temperature flue gas adheres to the surface of the filter bags, it easily leads to localized temperature increases due to heat accumulation. When the temperature reaches the dust's ignition point, it can easily ignite spontaneously or even explode, causing irreversible damage to the filter bags and significantly shortening the service life of the baghouse dust collector, severely impacting dust removal efficiency and production safety. Clearly, traditional ordinary baghouse dust collectors are no longer adequate for the actual working conditions of high-temperature, flammable, and explosive dust. Therefore, this application aims to provide a new high-temperature flammable and explosive dust removal device. Utility Model Content

[0004] The purpose of this invention is to address some shortcomings of existing technologies by providing a flammable and explosive dust removal device, which is particularly suitable for the treatment of high-temperature dusty flue gas.

[0005] The technical solution of this utility model is: a flammable and explosive dust removal device, including a dust collector body, a control system, a real-time monitoring system, and a flame-retardant emergency cooling system; the real-time monitoring system is used to monitor the operating parameters of the dust collector body; the flame-retardant emergency cooling system is used to cool and flame-retard the dust collector body; the control system is connected to the real-time monitoring system and the flame-retardant emergency cooling system, and is used to receive signals from the real-time monitoring system and control the start and stop of the flame-retardant emergency cooling system.

[0006] Furthermore, the dust collector body includes a housing, filter bags, a dust removal system, and a dust hopper; the left and right ends of the housing are respectively provided with a flue gas inlet and a flue gas outlet; the filter bags are disposed inside the housing; the dust removal system is disposed at the top of the housing; and the dust hopper is disposed at the bottom of the housing. The dust removal system includes nozzles from which compressed air is sprayed to clean the filter bags. Each filter bag is provided with a dust hopper below it, and a discharge valve is provided at the lower end of the dust hopper.

[0007] Furthermore, filter bags can be selected from PTFE material or metal material, depending on actual needs.

[0008] Furthermore, the real-time monitoring system includes multiple temperature measuring devices, which are respectively installed in various parts of the housing to comprehensively measure the temperature of the dust collector body.

[0009] Furthermore, temperature measuring devices are arranged at the flue gas inlet, flue gas outlet, and sides of the enclosure. Preferably, no fewer than nine temperature measuring devices are arranged on the sides of the enclosure in a matrix configuration of top, middle, bottom, left, middle, and right.

[0010] Furthermore, the real-time monitoring system also includes observation windows located on the side of the housing, allowing for real-time monitoring of the interior. The number and location of these windows correspond one-to-one with the filter bags. Preferably, the real-time monitoring system also includes devices for measuring other physical parameters such as pressure and flow rate.

[0011] Furthermore, the flame-retardant emergency cooling system includes at least one of the following: a gas flame-retardant cooling system and a water flame-retardant cooling system.

[0012] Furthermore, the gas flame-retardant cooling system includes multiple gas nozzles for injecting flame-retardant gas into the chamber; the flame-retardant gas is one or more of N2, CO2, or inert gases. After the flame-retardant gas is introduced, it not only produces a cooling effect but also reduces the O2 concentration in the flue gas, providing a dual flame-retardant effect on flammable and explosive dust.

[0013] Furthermore, the water-based flame-retardant cooling system includes multiple atomizing nozzles for spraying fire-fighting water into the chamber. The system employs refined dual-fluid atomizing nozzles, the number of which can be adjusted according to the projected area of ​​the filter bags to ensure complete coverage. After the atomized water is sprayed, the heat in the high-temperature flue gas is absorbed, the temperature inside the chamber decreases, and the dust adhering to the filter bags gradually releases heat, preventing excessive temperature from causing spontaneous combustion of the dust.

[0014] Furthermore, the flame-retardant emergency cooling system is equipped with a temperature control interlock device, which is set to immediately start the flame-retardant emergency cooling system after receiving an over-temperature signal from the real-time monitoring system; and is set to stop the flame-retardant emergency cooling system only after the system temperature drops below the safe threshold and the observation window confirms that there are no abnormalities inside the box.

[0015] Compared with existing technologies, the beneficial effects of this utility model are as follows: The flammable and explosive dust removal device of this application, through the coordinated operation of a real-time monitoring system and a flame-retardant emergency cooling system, can significantly reduce the risk of spontaneous combustion caused by high-temperature dust heat accumulation on the surface of the filter bag, effectively preventing filter bag damage, thereby greatly improving the safety of the high-temperature flammable and explosive dust treatment process. Furthermore, the device can also integrate automatic operation and remote monitoring functions, further enhancing the convenience of operation and the efficiency of operation management. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this utility model; In the diagram: 1. Housing; 11. Flue gas inlet; 12. Flue gas outlet; 2. Filter bag; 3. Ash cleaning system; 4. Ash hopper; 51. Temperature measuring device; 52. Observation window; 61. Gas nozzle; 62. Atomizing nozzle; 7. Discharge valve. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to specific embodiments. Methods or functional components not specifically described in the embodiments are all prior art. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Example

[0018] like Figure 1 As shown, this embodiment is a flammable and explosive dust removal device, including a dust collector body, a control system, a real-time monitoring system, and a flame-retardant emergency cooling system; the real-time monitoring system is used to monitor the operating parameters of the dust collector body; the flame-retardant emergency cooling system is used to cool and flame-retard the dust collector body; the control system is connected to the real-time monitoring system and the flame-retardant emergency cooling system, and is used to receive signals from the real-time monitoring system and control the start and stop of the flame-retardant emergency cooling system.

[0019] In this embodiment, the dust collector body includes a housing 1, filter bags 2, a dust removal system 3, and a dust hopper 4. The housing 1 has a flue gas inlet 11 and a flue gas outlet 12 at its left and right ends, respectively. The filter bags 2 are disposed inside the housing 1. The filter bags 2 can be made of PTFE material or metal material, depending on actual needs. The dust removal system 3 is located at the top of the housing 1. The dust removal system 3 includes nozzles and an air storage tank. Compressed air from the air storage tank can be sprayed from the nozzles to clean the filter bags 2 inside the housing 1. The dust hopper 4 is located at the bottom of the housing 1, and a discharge valve 7 is provided at the lower end of the dust hopper 4. When the dust in the dust hopper 4 reaches a certain amount, the discharge valve 7 is opened to discharge it.

[0020] In this embodiment, the real-time monitoring system includes multiple temperature measuring devices 51, which are respectively installed at various locations within the housing 1 to comprehensively measure the temperature of the dust collector body. The temperature measuring devices 51 are arranged on the pipes connected to the flue gas inlet 11 and the flue gas outlet 12, as well as on the sides of the housing 1. Specifically, nine temperature measuring devices 51 are arranged on the sides of the housing 1 in a matrix configuration of top, middle, bottom, left, middle, and right. In this embodiment, the temperature measuring devices 51 can be thermocouples or other existing temperature measuring mechanisms.

[0021] In this embodiment, the real-time monitoring system also includes observation windows 52 located on the side of the housing 1. These windows allow for real-time monitoring of the interior of the housing 1 (mainly the filter bags 2), and the number and location of each observation window correspond one-to-one with the filter bags 2. In this embodiment, the real-time monitoring system also includes a pressure measuring device, which can also be installed on the pipes connected to the flue gas inlet 11 and the flue gas outlet 12.

[0022] In this embodiment, the flame-retardant emergency cooling system includes both a gas flame-retardant cooling system and a water flame-retardant cooling system. The gas flame-retardant cooling system includes multiple gas nozzles 61, which are located at the flue gas inlet 11. The gas nozzles 61 are connected to a flame-retardant gas storage tank. The gas nozzles 61 are used to spray flame-retardant gas into the housing 1. The flame-retardant gas is one or more of N2, CO2, or an inert gas. When the flame-retardant gas is introduced, it reduces the O2 concentration in the flue gas while producing a cooling effect, providing a dual flame-retardant effect on flammable and explosive dust. The water flame-retardant cooling system includes multiple atomizing nozzles 62, which are located in the upper part of the inner cavity of the housing 1. The atomizing nozzles 62 are connected to a fire water pipe and are used to spray fire water into the housing 1. The water flame retardant cooling system uses a fine dual-fluid atomizing nozzle 62. The number of nozzles is set according to the projected area of ​​the filter bag 2 to ensure full coverage. After the atomized water is sprayed in, the heat in the high-temperature flue gas is absorbed, the temperature inside the box 1 drops, and the dust attached to the filter bag 2 gradually releases heat, thereby avoiding excessive temperature and dust spontaneous combustion.

[0023] In some embodiments, the flame-retardant emergency cooling system may be configured with a temperature control interlock device, which can start and stop the system according to real-time temperature feedback. Specifically, it is set to start the flame-retardant emergency cooling system immediately after receiving an over-temperature signal from the real-time monitoring system; and it is set to stop the flame-retardant emergency cooling system only after the system temperature drops below the safety threshold and is manually confirmed by the observation window 52 that there are no abnormalities inside the box 1.

[0024] In practical use, the flammable and explosive dust removal device in this embodiment is installed before the relevant deep flue gas treatment unit, so that the high-temperature flue gas is first treated by the flammable and explosive dust removal device in this embodiment before entering other deep treatment units, thereby improving the safety of the entire flue gas treatment system.

[0025] The above are only some embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various combinations and modifications of the aforementioned technical features. Any improvements, modifications, equivalent substitutions, or applications of the structure or method of the present utility model to other fields to achieve the same effect without departing from the spirit and scope of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A flammable and explosive dust removal device, comprising a dust collector body, characterized in that: It also includes a control system, a real-time monitoring system, and a flame-retardant emergency cooling system; The real-time monitoring system is used to monitor the operating parameters of the dust collector body; The flame-retardant emergency cooling system is used to cool and retard the main body of the dust collector. The control system is connected to the real-time monitoring system and the flame-retardant emergency cooling system, and is used to receive signals from the real-time monitoring system and control the start and stop of the flame-retardant emergency cooling system.

2. The flammable and explosive dust removal device according to claim 1, characterized in that: The dust collector body includes a housing, filter bags, a dust removal system, and a dust hopper; the left and right ends of the housing are respectively provided with a flue gas inlet and a flue gas outlet; the filter bags are placed inside the housing; the dust removal system is placed at the top of the housing; and the dust hopper is placed at the bottom of the housing.

3. The flammable and explosive dust removal device according to claim 2, characterized in that: The real-time monitoring system includes multiple temperature measuring devices, which are respectively installed in various parts of the housing to comprehensively measure the temperature of the dust collector body.

4. The flammable and explosive dust removal device according to claim 3, characterized in that: The temperature measuring device is arranged at the flue gas inlet, flue gas outlet, and on the side of the box.

5. The flammable and explosive dust removal device according to claim 3, characterized in that: The side of the enclosure is equipped with no fewer than nine temperature measuring devices, arranged in a matrix pattern of top, middle, bottom and left, middle and right.

6. The flammable and explosive dust removal device according to claim 3, characterized in that: The real-time monitoring system also includes an observation window located on the side of the enclosure, and further includes a pressure measuring device and a flow measuring device.

7. The flammable and explosive dust removal device according to claim 1, characterized in that: The flame-retardant emergency cooling system includes at least one of a gas flame-retardant cooling system and a water flame-retardant cooling system.

8. The flammable and explosive dust removal device according to claim 7, characterized in that: The gas flame-retardant cooling system includes multiple gas nozzles, which are used to spray flame-retardant gas into the chamber; the flame-retardant gas is one or more of N2, CO2 or inert gas.

9. The flammable and explosive dust removal device according to claim 7, characterized in that: The water-based flame-retardant cooling system includes multiple atomizing nozzles for spraying fire-fighting water into the enclosure.

10. The flammable and explosive dust removal device according to claim 7, characterized in that: The flame-retardant emergency cooling system is equipped with a temperature control interlock device, which is set to immediately start the flame-retardant emergency cooling system after receiving an over-temperature signal from the real-time monitoring system; and is set to stop the flame-retardant emergency cooling system only after the system temperature drops below the safe threshold and the observation window confirms that there are no abnormalities inside the box.

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