Electric dust remover capable of efficiently collecting dust

Abstract

The invention discloses an efficient dust collection electric precipitator which comprises a shell, a flue gas channel, cathode wires, conventional anode plates, special-shaped anode plates and dust collection flanges, the flue gas channel is formed in the shell, and the cathode wires and the conventional anode plates are alternately arranged in the flue gas channel; special-shaped anode plates are arranged at the positions, close to an outlet of the flue gas channel, of the conventional anode plates side by side, dust collection flanges are symmetrically arranged at the tail ends of the special-shaped anode plates, reentrainment of dust generated in the vibrating process of the anode plates can be effectively restrained, the effective dust collection area of the anode plates is increased, and therefore the dust removal efficiency of the anode plates is improved; the discharge requirements of the electric precipitator are met.

Description

Technical Field

[0001] The present invention relates to the technical field of electric precipitators, in particular to the technical field of electric precipitators with high-efficiency dust collection. Background Art

[0002] Electrostatic precipitator is one of the most widely used gas dust removal methods. When dust-containing gas passes through a high-voltage electric field, it is electrically separated. After the dust particles combine with negative ions and carry negative charges, they tend to discharge and deposit on the anode surface. The anode plate is the core component of the electrostatic precipitator. A high-voltage electric field is formed between the cathode line of the anode plate connected to the high-voltage DC power supply and the grounded anode plate. Due to corona discharge at the cathode, the gas is ionized, and the negatively charged gas ions move toward the anode plate under the action of the electric field force. When they collide with dust particles during movement, the dust particles are negatively charged. The charged dust particles also move toward the anode under the action of the electric field force. After reaching the anode, they release negative charges and are deposited on the anode plate. The purified gas is discharged out of the dust collector. When the anode plate of the electrostatic precipitator is vibrated, a large amount of dust attached to the anode plate falls into the ash hopper. At the same time, some finer dust is easily brought into the electrostatic precipitator by the flue gas flow, resulting in a significant increase in the dust concentration of the electrostatic precipitator when the anode plate is vibrated, which cannot meet the emission requirements. Summary of the invention

[0003] The purpose of the present invention is to solve the problems in the prior art and to propose an electrostatic precipitator with high dust collection efficiency, which can effectively suppress the secondary dust generated during the vibration of the anode plate, increase the effective dust collection area of ​​the anode plate, thereby improving the dust removal efficiency of the anode plate and meeting the emission requirements of the electrostatic precipitator.

[0004] To achieve the above-mentioned purpose, the present invention proposes an electrostatic precipitator with high-efficiency dust collection, including a shell, a flue gas channel, a cathode wire, a conventional anode plate, a special-shaped anode plate and a dust collecting dam, wherein a flue gas channel is arranged in the shell, cathode wires and conventional anode plates are alternately arranged in the flue gas channel, special-shaped anode plates are arranged side by side on the conventional anode plates near the outlet of the flue gas channel, and dust collecting dams are symmetrically arranged at the ends of the special-shaped anode plates.

[0005] Preferably, the conventional anode plate and the special-shaped anode plate are arranged parallel to each other, and the airflow direction of the conventional anode plate and the flue gas channel are parallel to each other.

[0006] Preferably, the conventional anode plate is a C480 anode plate.

[0007] Preferably, there are multiple conventional anode plates, and adjacent conventional anode plates are arranged parallel to each other. The conventional anode plates form multiple parallel anode rows in the flue gas channel, and special-shaped anode plates are arranged at the ends of the anode rows.

[0008] Preferably, the conventional anode plates are symmetrically provided with bending grooves at the front and rear ends thereof, there are a plurality of conventional anode plates, and the bending grooves of adjacent conventional anode plates have openings facing opposite directions.

[0009] Preferably, the special-shaped anode plate and the conventional anode plate are of the same shape and size, and the dust collecting baffle is an L-shaped baffle.

[0010] Preferably, a plurality of dust guide holes are evenly arranged on the plate surface of the dust collecting dam of the special-shaped anode plate.

[0011] Preferably, an arc-shaped inner hook edge is provided at the opening position of the bending groove.

[0012] Beneficial effects of the present invention: The present invention combines the shell, flue gas channel, cathode wire, conventional anode plate, special-shaped anode plate and dust collecting dam together. After experimental optimization, the special-shaped anode plate at the end of the conventional anode plate can effectively suppress the secondary dust generated during the vibration of the anode plate. The collected dust can flow into the ash hopper along the bending groove, which increases the effective dust collecting area of ​​the anode plate, thereby improving the dust removal efficiency of the anode plate and meeting the emission requirements of the electrostatic precipitator.

[0013] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the main structure of the electric precipitator with high efficiency dust collection of the present invention; Figure 2 It is a schematic diagram of the main cross-sectional structure of the electric precipitator with high efficiency dust collection of the present invention; Figure 3 It is a partial I enlarged structural schematic diagram of the electric precipitator with high efficiency dust collection of the present invention; Figure 4 It is a schematic structural diagram of the A direction of the special-shaped anode plate embodiment 1 of the electric precipitator with high efficiency dust collection of the present invention; Figure 5 It is a schematic diagram of the structure in the direction A of the second embodiment of the special-shaped anode plate of the electrostatic precipitator with high-efficiency dust collection of the present invention.

[0015] In the figure: 1-shell, 2-smoke channel, 3-cathode wire, 4-conventional anode plate, 5-special-shaped anode plate, 6-dust collecting rib, 7-bending groove, 8-arc inner hook edge. DETAILED DESCRIPTION

[0016] Example 1: See Figure 1 , Figure 2 , Figure 3 and Figure 4The invention discloses an electrostatic precipitator with high efficiency dust collection, comprising a shell 1, a flue gas channel 2, a cathode line 3, a conventional anode plate 4, a special-shaped anode plate 5 and a dust collecting rib 6. The shell 1 is provided with a flue gas channel 2, the flue gas channel 2 is provided with cathode lines 3 and conventional anode plates 4 alternately, the conventional anode plates 4 are provided with special-shaped anode plates 5 side by side near the outlet of the flue gas channel 2, the end of the special-shaped anode plate 5 is symmetrically provided with a dust collecting rib 6, the conventional anode plate 4 and the special-shaped anode plate 5 are provided in parallel with each other, the airflow direction of the conventional anode plate 4 and the flue gas channel 2 is parallel to each other, and the conventional anode plate 4 is C48 0 anode plate, there are multiple conventional anode plates 4, adjacent conventional anode plates 4 are arranged parallel to each other, the conventional anode plates 4 form multiple parallel anode rows in the flue gas channel 2, and the ends of the anode rows are provided with special-shaped anode plates 5, and the front and rear ends of the conventional anode plates 4 are symmetrically provided with bending grooves 7, there are multiple conventional anode plates 4, the bending grooves 7 of adjacent conventional anode plates 4 open in opposite directions, the special-shaped anode plates 5 and the conventional anode plates 4 have the same shape and size, the dust collecting baffle 6 is an L-shaped baffle, and the opening position of the bending groove 7 is provided with an arc-shaped inner hook edge 8.

[0017] Example 2: See Figure 1 , Figure 2 , Figure 3 and Figure 5 The invention discloses an electrostatic precipitator with high efficiency dust collection, comprising a shell 1, a flue gas channel 2, a cathode line 3, a conventional anode plate 4, a special-shaped anode plate 5 and a dust collecting rib 6. The shell 1 is provided with a flue gas channel 2, the flue gas channel 2 is provided with cathode lines 3 and conventional anode plates 4 alternately, the conventional anode plates 4 are provided with special-shaped anode plates 5 side by side near the outlet of the flue gas channel 2, the ends of the special-shaped anode plates 5 are symmetrically provided with dust collecting ribs 6, the conventional anode plates 4 and the special-shaped anode plates 5 are provided in parallel with each other, the airflow directions of the conventional anode plates 4 and the flue gas channel 2 are parallel to each other, the conventional anode plates 4 are C480 anode plates, the number of the conventional anode plates 4 is There are multiple conventional anode plates 4, adjacent conventional anode plates 4 are arranged parallel to each other, the conventional anode plates 4 form multiple parallel anode rows in the flue gas channel 2, and special-shaped anode plates 5 are arranged at the ends of the anode rows, and bending grooves 7 are symmetrically arranged at the front and rear ends of the conventional anode plates 4. There are multiple conventional anode plates 4, and the bending grooves 7 of adjacent conventional anode plates 4 open in opposite directions. The special-shaped anode plates 5 and the conventional anode plates 4 have the same shape and size, and the dust collecting baffle 6 is an L-shaped baffle, and a plurality of dust guide holes are evenly arranged on the plate surface of the dust collecting baffle 6 of the special-shaped anode plate 5, and an arc-shaped inner hook edge 8 is arranged at the opening position of the bending groove 7.

[0018] The present invention combines a shell 1, a flue gas channel 2, a cathode line 3, a conventional anode plate 4, a special-shaped anode plate 5 and a dust collecting dam 6 together. After experimental optimization, the special-shaped anode plate 5 at the end of the conventional anode plate 4 can effectively suppress the secondary dust generated during the vibration of the anode plate. The collected dust can flow into the ash hopper along the bending groove 7, thereby increasing the effective dust collecting area of ​​the anode plate, thereby improving the dust removal efficiency of the anode plate and meeting the emission requirements of the electrostatic precipitator.

[0019] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention belongs to the protection scope of the present invention.

Claims

1. An electrostatic precipitator with high dust collection efficiency, characterized by: The invention comprises a shell (1), a smoke channel (2), a cathode wire (3), a conventional anode plate (4), a special-shaped anode plate (5) and a dust collecting rib (6), wherein the shell (1) is provided with a smoke channel (2), the smoke channel (2) is provided with cathode wires (3) and conventional anode plates (4) alternately, the conventional anode plates (4) are provided with special-shaped anode plates (5) side by side near the exit of the smoke channel (2), and the ends of the special-shaped anode plates (5) are symmetrically provided with dust collecting ribs (6).

2. The high-efficiency dust collecting electric precipitator according to claim 1, characterized in that: The conventional anode plate (4) and the special-shaped anode plate (5) are arranged parallel to each other, and the airflow directions of the conventional anode plate (4) and the flue gas channel (2) are parallel to each other.

3. The high-efficiency dust collecting electric precipitator according to claim 1, characterized in that: The conventional anode plate (4) is a C480 anode plate.

4. The high-efficiency dust collecting electric precipitator according to claim 1, characterized in that: There are a plurality of conventional anode plates (4), and adjacent conventional anode plates (4) are arranged parallel to each other. The conventional anode plates (4) form a plurality of mutually parallel anode rows in the flue gas channel (2), and special-shaped anode plates (5) are arranged at the ends of the anode rows.

5. The high-efficiency dust collecting electric precipitator according to claim 1, characterized in that: The conventional anode plate (4) is symmetrically provided with bending grooves (7) at the front and rear ends. There are a plurality of conventional anode plates (4), and the bending grooves (7) of adjacent conventional anode plates (4) open in opposite directions.

6. The high-efficiency dust collecting electric precipitator according to claim 1, characterized in that: The special-shaped anode plate (5) and the conventional anode plate (4) have the same shape and size, and the dust collecting baffle (6) is an L-shaped baffle.

7. The high-efficiency dust collecting electric precipitator according to claim 1, characterized in that: A plurality of dust guide holes are evenly arranged on the plate surface of the dust collecting dam (6) of the special-shaped anode plate (5).

8. The high-efficiency dust collecting electric precipitator according to claim 1, characterized in that: An arc-shaped inner hook edge (8) is provided at the opening position of the bending groove (7).

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