A dust filtering and collecting device for filtering and collecting fugitive charged dust

Abstract

This utility model relates to the technical field of dust removal equipment, and its purpose is to provide a dust collection and suppression device for filtration of escaping charged dust, including a filtration and dust collection component and a dust suppression and dust collection component. The filtration and dust collection component includes a filter groove installed at the end of each group of anode plates, the filter groove being formed by pressing a perforated plate. The dust suppression and dust collection component includes a dust collection plate installed at the end of a grooved electrode plate inside the exhaust gas chamber away from the outlet side of the exhaust gas chamber, the dust collection plate being formed by pressing a perforated plate. This utility model, by adding a filtration and dust collection component at the end of the electric field and a dust suppression and dust collection component in the exhaust gas chamber, not only increases the effective dust collection area through the cooperation of the filtration and dust collection components, but also captures some of the escaped charged dust in the electric field, effectively intercepting secondary dust generated during cleaning, and significantly improving dust removal efficiency.

Description

Technical Field

[0001] This utility model relates to the field of dust removal equipment technology, and in particular to a dust suppression and collection device for filtering and collecting escaping charged dust. Background Technology

[0002] In existing charged dust treatment technologies, traditional electrostatic precipitators, while capable of capturing dust from flue gas to a certain extent, suffer from several problems during actual operation. Firstly, dust escape is significant at the end of the electric field; some dust particles, after passing through the electric field area, fail to be effectively captured and are directly discharged due to the high flue gas velocity, hindering further improvement in dust removal efficiency. Secondly, during the rapping cleaning process, captured dust is re-energized by the rapping force, creating secondary dust that re-enters the flue gas, further reducing the dust removal effect. Furthermore, the collection area of ​​existing equipment is relatively limited, making it difficult to meet increasingly stringent environmental protection requirements and the demand for highly efficient dust capture. Utility Model Content

[0003] The purpose of this invention is to provide a dust suppression and collection device for filtration of escaping charged dust, in order to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A dust suppression and collection device for filtration of escaping charged dust includes a filtration and collection assembly and a dust suppression and collection assembly. The filtration and collection assembly includes a filter groove installed at the end of each group of anode plates. The filter groove is formed by pressing a perforated plate, and both ends of the filter groove are bent toward the anode plate. A gap is left between the sidewalls of the two ends of the filter groove and the sidewall of the electric field region. The dust suppression and collection assembly includes a dust collection plate installed in the exhaust gas box. The dust collection plate is formed by pressing a perforated plate and is fixedly installed at the end of the grooved electrode plate away from the outlet of the exhaust gas box.

[0006] The filter tank is fixedly installed on the anode plate array by a filter tank bracket and a pad.

[0007] The filter tank support includes a support rod, with a horizontal plate and a vertical plate fixedly installed at both ends of the support rod, the horizontal plate and the vertical plate being perpendicular to each other and having the same width.

[0008] The support rod, horizontal plate, and vertical plate are all provided with through holes at their centers.

[0009] Both ends of the horizontal and vertical plates are provided with bolt mounting holes.

[0010] The bending angle at both ends of the filter tank is 90°.

[0011] The filter tank and the anode plate row share the same vibration cleaning method.

[0012] The dust collection plate is fixedly installed on the flat steel on the channel-shaped electrode plate by angle steel and sleeve.

[0013] The dust collection plate and the grooved electrode plate share the same vibration cleaning method.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0015] This invention adds a filter dust collection component at the end of the electric field and a dust suppression dust collection component in the exhaust gas box. Through the cooperation of the filter dust collection component and the dust suppression dust collection component, not only is the effective dust collection area increased, but also some of the charged dust that escapes in the electric field can be captured. This effectively intercepts secondary dust caused by dust removal and significantly improves dust removal efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the filter and dust collection component in an embodiment of this utility model.

[0017] Figure 2 This is an embodiment of the present utility model. Figure 1 A schematic diagram of the cross-sectional structure at point AA.

[0018] Figure 3 This is a side view of the filter support in an embodiment of this utility model.

[0019] Figure 4 This is a front view of the filter tank support in an embodiment of this utility model.

[0020] Figure 5 This is an embodiment of the present utility model. Figure 2 A schematic diagram of the cross-sectional structure at point BB.

[0021] Figure 6 This is a schematic diagram of the structure of the pad in an embodiment of this utility model.

[0022] Figure 7 This is a front view of the filter tank in an embodiment of this utility model.

[0023] Figure 8 This is a side view of the filter tank in an embodiment of this utility model.

[0024] Figure 9 This is a front view of the dust suppression and collection component in an embodiment of this utility model.

[0025] Figure 10 This is a top view of the dust suppression and collection component in an embodiment of this utility model.

[0026] Figure 11 This is a side view of the dust suppression and collection component in an embodiment of this utility model.

[0027] Figure 12This is a schematic diagram of the structure of dust collection plate I in this embodiment of the present invention.

[0028] Figure 13 This is an embodiment of the present utility model. Figure 11 A magnified schematic diagram of the structure at point A in the middle.

[0029] Figure 14 This is an embodiment of the present utility model. Figure 11 A magnified schematic diagram of the structure at point B in the middle.

[0030] Figure 15 This is an embodiment of the present utility model. Figure 11 A magnified schematic diagram of the structure at point C.

[0031] Figure 16 This is an embodiment of the present utility model. Figure 10 A magnified schematic diagram of the structure at point D.

[0032] Figure 17 This is a schematic diagram of the flat steel structure in an embodiment of this utility model.

[0033] Attached figures and their names: Filter tank 1, Filter tank support 2, Pad 3, Dust collection plate I 4, Flat steel 5, Dust collection plate II 6, Sleeve 7, Angle steel 8, Horizontal plate 201, Support rod 202, Vertical plate 203, Through hole 204. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0036] like Figure 1-8 As shown, the present invention provides a dust filtration, suppression and collection device for evaporative charged dust, which includes a dust filtration and collection component and a dust suppression and collection component. The dust filtration and collection component is located at the end of the electric field and includes a filter tank 1 installed at the end of each group of anode plates. The filter tank 1 and the anode plates share the same vibration cleaning mechanism.

[0037] The two ends of the filter tank 1 are bent towards the anode plate array at a bending angle of 90°. Gaps are left between the sidewalls of the filter tank 1 and the sidewalls of the electric field region to allow flue gas to pass through. The filter tank 1 is fixedly installed on the anode plate array via a filter tank support 2 and a pad 3. The filter tank support 2 includes a support rod 202, with a horizontal plate 201 and a vertical plate 203 fixedly installed at both ends of the support rod 202. The horizontal plate 201 and the vertical plate 203 are perpendicular to each other and have the same width. Through holes 204 are provided at the center of the support rod 202, the horizontal plate 201, and the vertical plate 203. Bolt mounting holes are provided at both ends of the horizontal plate 201 and the vertical plate 203. The pad 3 is located outside the filter tank 1, facilitating the fixing of the filter tank 1 to the filter tank support 2 via bolts.

[0038] like Figure 2 As shown, dust particles in the dust-laden flue gas are acted upon by the electric field force. When passing through the electric field region, they tend to approach the dust-collecting plates, and when exiting the electric field region, they are basically within the radiation range of filter tank 1. Filter tank 1 is formed by pressing a thin-perforated plate, which, while allowing flow, blocks part of the flue gas, causing flue gas backflow and effectively extending the flue gas residence time, thus ensuring the re-collection of dust. At the same time, each row of plates increases the dust collection area by approximately 5.6㎡ (single-sided, calculated based on a 15m electric field height). Therefore, the addition of the filter dust collection component increases the dust collection area and extends the residence time of the flue gas in the electric field region, which is more conducive to the collection of charged dust and can effectively improve the dust removal efficiency.

[0039] like Figure 9-17 As shown, the dust suppression and collection assembly includes a dust collection plate formed by pressing a thin perforated plate, located at the end of the grooved electrode plate inside the exhaust gas box away from the outlet side of the exhaust gas box, connected to the grooved electrode plate, and sharing the rapping dust removal with the grooved electrode plate.

[0040] The dust collection plate includes a dust collection plate I4 located at the top and a dust collection plate II6 located at the bottom. The dust collection plate I4 and the dust collection plate II6 have the same structure and are both fixedly installed on the flat steel 5 on the channel-shaped electrode plate by angle steel 8 and sleeve 7. The rapping mechanism is located between the dust collection plate I4 and the dust collection plate II6.

[0041] The dust suppression and collection components are mainly used to collect dust escaping from the electric field and secondary dust generated during the rapping cleaning process. The dust collection plate is formed by pressing thin perforated plates, which not only plays a certain role in equalizing the flow but also has a certain effect on blocking and capturing dust generated by secondary dust and dust escaping from the electric field area. At the same time, each smoke box increases the dust collection area by approximately 114㎡ (relative to a 300MW dust collector). Therefore, the addition of dust suppression and collection components not only increases the dust collection area but also suppresses secondary dust, which is more conducive to the re-capture of dust and improves the dust removal efficiency.

Claims

1. A dust suppression and collection device for filtering and collecting egress charged dust, characterized in that: Includes filtration and dust collection components and dust suppression and dust collection components; The dust collection assembly includes a filter tank (1) installed at the end of each group of anode plates. The filter tank (1) is formed by pressing a perforated plate. Both ends of the filter tank (1) are bent toward the anode plate. There is a gap between the side walls of the two ends of the filter tank (1) and the side walls of the electric field region. The dust suppression and collection assembly includes a dust collection plate installed inside the exhaust gas box. The dust collection plate is formed by pressing a perforated plate and is fixedly installed at one end of the grooved electrode plate away from the outlet side of the exhaust gas box.

2. The dust suppression and collection device for filtration of escaping charged dust according to claim 1, characterized in that: The filter tank (1) is fixedly installed on the anode plate array by the filter tank bracket (2) and the pad (3).

3. The dust suppression and collection device for filtration of escaping charged dust according to claim 2, characterized in that: The filter support (2) includes a support rod (202), with a horizontal plate (201) and a vertical plate (203) fixedly installed at both ends of the support rod (202). The horizontal plate (201) and the vertical plate (203) are perpendicular to each other and have the same width.

4. The dust suppression and collection device for filtration of escaping charged dust according to claim 3, characterized in that: The support rod (202), the horizontal plate (201) and the vertical plate (203) are all provided with through holes (204) at their centers.

5. The dust suppression and collection device for filtration of escaping charged dust according to claim 4, characterized in that: Both ends of the horizontal plate (201) and the vertical plate (203) are provided with bolt mounting holes.

6. The dust suppression and collection device for filtration of escaping charged dust according to claim 5, characterized in that: The bending angle at both ends of the filter tank 1 is 90°.

7. The dust suppression and collection device for filtration of escaping charged dust according to claim 6, characterized in that: The filter tank (1) and the anode plate row share the same vibration cleaning method.

8. The dust suppression and collection device for filtration of escaping charged dust according to claim 1, characterized in that: The dust collection plate is fixedly installed on the flat steel (5) on the channel-shaped electrode plate by angle steel (8) and sleeve (7).

9. The dust suppression and collection device for filtration of escaping charged dust according to claim 8, characterized in that: The dust collection plate and the grooved electrode plate share the same vibration cleaning method.

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