CN114932015A

CN114932015A - Adopt horizontal electrostatic precipitator of CW type anode plate

Info

Publication number: CN114932015A
Application number: CN202210623824.9A
Authority: CN
Inventors: 张育春; 王军惠; 冯景龙
Original assignee: Xi'an Pengyuan Metallurgical Equipment Co ltd
Current assignee: Xi'an Pengyuan Metallurgical Equipment Co ltd
Priority date: 2022-06-03
Filing date: 2022-06-03
Publication date: 2022-08-23

Abstract

The invention discloses a horizontal electric dust collector adopting a CW-type anode plate, wherein wind-proof grooves on two sides of the CW-type anode plate are symmetrically rolled, polar plates are mutually buckled, connected and suspended, and the current density of the polar plates is uniform; each anode plate of the electric dust remover adopting the CW type anode plate is correspondingly matched with 3 corona wires, so that the dust removal efficiency is obviously improved under the same working condition compared with the electric dust remover adopting the Z type, C type and W type anode plates; the CW-type anode plate is clamped between two flat steels serving as rapping rods, and fixing blocks are arranged in the concave parts of the two flat steels and the anode plate, so that the contact area between the anode plate and the clamping flat steel is increased by the fixing blocks, and the impact resistance of a joint is improved; one end of the clamping flat steel is welded with a vibration head, and the other end of the clamping flat steel is welded together by a head sealing plate; when the vibrating plate is vibrated to remove ash, the vibrating force can be uniformly transmitted to the CW type anode plate, so that the ash removal effect is ensured, the connection mode can also effectively prevent the electrode plate from deforming and breaking, and the working stability and reliability are improved.

Description

Adopt horizontal electrostatic precipitator of CW type anode plate

Technical Field

The invention relates to the field of electric dust collectors, in particular to a horizontal electric dust collector adopting a CW type anode plate.

Background

The electric dust remover has the advantages of high dust removal efficiency, small resistance loss, large smoke treatment capacity, capability of treating high-temperature smoke and the like, and is widely applied to industries such as metallurgy, electric power, chemical industry, building materials and the like. The electric dust collector mainly comprises an electric part and a body part. The body portion mainly comprises the following components: support steel construction, import and export loudspeaker, casing, cathode system, positive pole system, ash bucket, stair platform etc.. The whole dust removal process of the flue gas is carried out in the electric dust remover, so that the structure of the body has direct influence on the performance of the electric dust remover. The type of the anode plate and the arrangement and matching type of the corona wire are decisive for the use reliability and the dust removal efficiency of the electric dust remover. At present, the anode plate type adopted by the electric dust collector is mainly three, which are respectively: z type, C type, W type (ZT 24 type). These three types of anode plates present different degrees of problems due to their construction: for example, the wind-proof grooves on two sides of the Z-shaped anode plate are reversely rolled and are easy to distort and deform; single-piece suspension is adopted, so that bending deformation is easy to occur; each anode plate corresponds to 1 corona wire, and the current density distribution is uneven. For example, the C-shaped anode plate has the advantages that the windproof grooves on two sides are symmetrically rolled, and the C-shaped anode plate is hung in a single piece, is not easy to twist, but is easy to bend and deform. For example, the W-shaped (ZT 24-shaped) anode plate has wind-proof grooves on two sides which are reversely rolled, and is easy to distort and deform; the polar plates are mutually connected and suspended in a buckling manner, and the current density of the polar plates is uniform. The horizontal electric dust remover adopting the anode plates has the problems of higher failure rate, reduced dust removal efficiency in use and poor reliability.

Disclosure of Invention

In order to solve the problems, the invention discloses a horizontal electric dust collector adopting a CW type anode plate. The CW type anode plate is characterized in that: the two wind-proof ditches are symmetrically rolled, the rigidity is good, the strength is high, and the deformation at high temperature is extremely small; the polar plates are mutually connected and suspended in a buckling manner, and the current density of the polar plates is uniform and close to an ideal state. Adopt every anode plate of horizontal electrostatic precipitator of CW type anode plate to correspond and match 3 corona wires, compare and adopt every anode plate of the electrostatic precipitator of Z type, C type anode plate and only correspond and match 1 corona wire and adopt every anode plate of the electrostatic precipitator of W type (ZT 24 type) anode plate to correspond and match 2 corona wires, produced corona current will be a lot of higher, and corona current's size plays the primary role to the good or bad of dust removal effect. Therefore, the dust removal efficiency of the horizontal electric dust remover adopting the CW type anode plate under the same working condition is obviously improved; in addition, the CW type anode plate is clamped between two flat steels serving as rapping rods by the horizontal electric dust collector adopting the CW type anode plate, and the fixing blocks are arranged at the concave parts of the two flat steels and the anode plate, so that the contact area of the anode plate and the clamping flat steel is increased by the fixing blocks, and the impact resistance of the joint is improved; the rapping head is welded at one end of the clamping flat steel, and the other end of the clamping flat steel is welded together by a sealing head plate; when the vibrating plate is used for vibrating and cleaning ash, the vibrating force can be uniformly transmitted to the CW type anode plate, the ash cleaning effect is ensured, and the connection mode can also effectively prevent the deformation and the fracture of the anode plate.

The invention has the advantages that the work stability and reliability of the horizontal electric dust remover adopting the CW-type anode plate are greatly improved, the dust removal efficiency is obviously improved, the service life of the anode plate is relatively prolonged, and the maintenance cost of the electric dust remover is reduced.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a cross-sectional view of a CW-type anode plate.

FIG. 2 is a schematic view of the connection of a CW-type anode plate with a vibrating head, a fixed block and a flat steel.

Fig. 3 is a schematic view of a combined discharge electrode frame.

Fig. 4 is a view taken along direction a of fig. 3.

Fig. 5 is a schematic diagram of the positions of each CW-type anode plate corresponding to 3 corona wires.

In the figure: 1. the device comprises a head plate, 2 parts of a CW-type anode plate, 3 parts of a fixed block, 4 parts of a flange bolt, 5 parts of a first flat steel, 6 parts of a second flat steel, 7 parts of a spring washer, 8 parts of a first hexagon nut, 9 parts of a rapping head, 10 parts of a combined discharge electrode frame, 11 parts of corona wires, 12 parts of a second hexagon nut, 13 parts of a flat washer, 14 parts of discharge needles, 15 parts of an electric dust collector side plate, 16 parts of a first wind shield and 17 parts of a second wind shield.

Detailed Description

The embodiments of the present invention will be described in conjunction with the accompanying drawings, and it should be understood that the embodiments described herein are only for the purpose of illustrating and explaining the present invention, and are not intended to limit the present invention.

As shown in fig. 1: the CW type anode plate (2) is in a symmetrical structure in the width direction, and two ends are provided with windproof grooves. The wind-proof ditch has two functions, namely, preventing dust from escaping and playing a role in connection. In the electric dust collector, the wind-proof groove rings of the adjacent anode plates are buckled with each other (as shown in fig. 2), and a certain gap is reserved between the wind-proof grooves. The connection type of the ring buckling can effectively prevent the deformation of the polar plates (rows), and the clearance between the wind-proof ditches plays a certain compensation role for the deformation caused by high temperature. Six symmetrically rolled grooves are formed in the CW type anode plate (2) in the width direction, the grooves have a strengthening effect on the rigidity of the anode plate, and the deformation of the anode plate in the length direction can be effectively reduced. The width of the CW type anode plate (2) is 510mm, the length of the wind-proof grooves at the two ends is 22mm, and the length can be determined according to other structural parameters of the horizontal electric dust remover.

As shown in fig. 2: the windproof groove rings between adjacent CW type anode plates (2) are buckled and connected into an electrode plate row; the fixed block (3) is arranged between the second flat steel (6) and the CW-type anode plate (2) and the first flat steel (5) or between the first flat steel (5) and the CW-type anode plate (2) and the second flat steel (6); the flange face bolt (4), the spring washer (7) and the first hexagonal nut (8) are used for connecting the second flat steel (6), the fixed block (3), the CW-type anode plate (2) and the first flat steel (5) together in a threaded connection mode or connecting the first flat steel (5), the fixed block (3), the CW-type anode plate (2) and the second flat steel (6) together; the fixed block (3) increases the contact area of the joint and improves the impact resistance of the joint.

As shown in fig. 3: the two ends of each corona wire (11) are provided with external threads, the corona wires are arranged on the combined discharge electrode frame (10) in a threaded connection mode through second hexagonal nuts (12) and flat washers (13), the center distance between every two adjacent corona wires (11) is 160mm, and the center distance corresponds to the center distance of 160mm between grooves on the two sides of the CW-type anode plate (2). Fig. 4 is a view from the direction a of fig. 3, and fig. 3 shows only a portion of the combined discharge electrode frame (10) whose actual width and height match the structure and dimensions of the rest of the electrostatic precipitator.

As shown in fig. 5: the discharge needle (14) is welded on the corona wire (11), the long end of the discharge needle faces to the recess of the CW type anode plate (2) and is opposite to the center line of the width of the discharge needle; the short end of the anode plate faces the convex part of the CW type anode plate (2) and is opposite to the center line of the width of the anode plate; first deep bead (16) are installed at the outer end that leans on outer CW type anode plate (2), and on electrostatic precipitator curb plate (15) that second deep bead (17) were installed, two deep beads can prevent that the dust edgewise from escaping, are favorable to improving dust collection efficiency.

Finally, it should be noted that: in the description of the present invention, the terms "first" and "second" are based on the orientations or positional relationships shown in the drawings, are for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referenced components must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention; in addition, the term "mounted" is only used to illustrate the combination of the related components, and is not limited to any way such as screwing, welding, etc., and is not to be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise specifically stated or limited, the connection types (such as threaded connection or welding) between the related components are only common connection types, and are not intended to limit what connection types are used in actual design and manufacture. Also, it is possible for those skilled in the art to understand the specific meaning of the above coupling pattern in the present invention according to the specific situation.

Although the present invention has been described in detail with reference to the above-mentioned embodiments, it will be apparent to those skilled in the art that modifications may be made to the technical solutions described in the above-mentioned embodiments, or some technical features may be substituted equally. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an adopt horizontal electrostatic precipitator of CW type anode plate which characterized in that: the combined type electric precipitator comprises a sealing head plate (1), a CW type anode plate (2), a fixing block (3), a flange face bolt (4), a first flat steel (5), a second flat steel (6), a spring washer (7), a first hexagon nut (8), a rapping head (9), a combined discharge electrode frame (10), a corona wire (11), a second hexagon nut (12), a flat washer (13), a discharge needle (14), an electric precipitator side plate (15), a first wind shield (16) and a second wind shield (17).

2. The horizontal electric dust collector adopting the CW type anode plate is characterized in that the wind-proof groove rings of the adjacent CW type anode plate (2) are buckled and connected into an electrode plate row in the electric dust collector, the CW type anode plate (2) is clamped between two first flat steels (5) and two second flat steels (6) which are used as rapping rods, fixing blocks (3) are arranged at the concave parts of the two flat steels and the anode plate, a rapping head (9) is welded at one end for clamping the flat steels, and the other ends for clamping the flat steels are welded together by a head sealing plate (1); the corona wire (11) is arranged on the combined discharge electrode frame (10); the discharge needle (14) is welded on the corona wire (11), and the long end and the short end of the discharge needle respectively face the concave part and the convex part of the CW-type anode plate (2) and are opposite to the center line of the width of the discharge needle; the first wind shield (16) is arranged at the outer end of the CW type anode plate (2) which is the outermost, and the second wind shield (17) is arranged on the side plate (15) of the electric dust collector.

3. The horizontal electric dust collector adopting the CW type anode plate is characterized in that the CW type anode plate (2) is symmetrical in the width direction, wind-proof grooves are formed at two ends of the CW type anode plate, and six symmetrically rolled grooves are formed in the width direction.

4. The horizontal electric dust collector adopting the CW type anode plate is characterized in that the CW type anode plate (2) has the width of 510mm and the length dimension of the wind-proof grooves at two ends of 22 mm.

5. The horizontal electric dust collector adopting CW type anode plates is characterized in that the wind-proof grooves of the adjacent anode plates (2) are buckled with each other in a ring manner, and a certain gap is reserved between the wind-proof grooves.

6. The horizontal electric dust collector adopting the CW type anode plate is characterized in that each anode plate of the horizontal electric dust collector adopting the CW type anode plate (2) is correspondingly matched with 3 corona wires (11) arranged on a combined discharge electrode frame (10).

7. The horizontal electric dust collector adopting the CW type anode plate is characterized in that the discharge needles (14) are welded on the corona wire (11), the long ends of the discharge needles face the concave part of the CW type anode plate (2) and are opposite to the center line of the width of the discharge needles; the short end faces the convex part of the CW type anode plate (2) and is opposite to the center line of the width.

8. The horizontal electric dust collector adopting the CW type anode plate is characterized in that a first wind screen (16) is installed at the outer end of the outermost CW type anode plate (2), and a second wind screen (17) is installed on a side plate (15) of the electric dust collector.