CN107971137B

CN107971137B - Rapping device for negative plate of electric dust collector

Info

Publication number: CN107971137B
Application number: CN201711340758.XA
Authority: CN
Inventors: 赵永丽; 陈培根; 沈运超; 吕腾腾; 张艳; 张枝景; 孟坤; 夏成昊; 卢仁博
Original assignee: Anhui Yiyi Environmental Protection Equipment Co ltd
Current assignee: Anhui Yiyi Environmental Protection Engineering Co ltd
Priority date: 2017-12-14
Filing date: 2017-12-14
Publication date: 2020-04-21
Anticipated expiration: 2037-12-14
Also published as: CN107971137A

Abstract

The invention relates to the technical field of electric precipitators, in particular to a negative plate rapping device of an electric precipitator, wherein a connecting frame used for connecting a cathode wire component is arranged in the horizontal direction of a cathode frame, and the rapping device raps the connecting frame for deashing through a power device; each connecting frame is provided with a rapping device, effective dust removal can be achieved only by small force, the contact point of each rapping can be changed, and rapping deformation in the long-term rapping process can be avoided, so that the service life of the rapping device is prolonged; after passing through the airflow distribution plate of the electric dust collector, the dust particles at the lower part of the cathode wire component are slightly coarse, the acceleration of the vibration lower part of the vibration device on the connecting frame is slightly large, and even if the lower part of the dust is crushed, the secondary flying is also smaller due to the coarse particles, and the secondary flying is smaller in the whole dust cleaning process.

Description

Rapping device for negative plate of electric dust collector

The technical field is as follows:

the invention relates to the technical field of electric precipitators, in particular to a cathode plate rapping device of an electric precipitator.

Background art:

at present, charged dust in flue gas of an electric dust collector moves towards a grounding electrode under the action of electric field force and is continuously deposited on a cathode line to gradually form thicker and thicker dust. If the deposited dust layer is too thick, the discharge performance of the electrode is reduced, the corona current is reduced, and dust collection is not facilitated. Back corona is also caused for high specific resistance dust, resulting in a decrease in the dust removal efficiency of the electrostatic precipitator. Therefore, the electric dust collector needs to clean dust in time after running for a period of time.

The existing electric dust remover mainly carries out dust removal in a top or bottom mechanical vibration mode, and mainly comprises a suspension beam, a support plate, a fixed beam, a positioning beam and at least two rows of vertical cathode wires, wherein at least two cathode wires are arranged in each row, the top end of each row of cathode wires is respectively fixed with a horizontal suspension beam, a horizontal support beam is fixed on the suspension beam and is vertical to the suspension beam, a horizontal support plate is fixed on the support beam, and a top vibration mechanism is arranged on the support plate; the lower extreme of negative pole line is fixed with an at least horizontally fixed beam, the fixed beam is perpendicular with the face of negative plate, has the horizontally locating beam at the front end cover of fixed beam, the locating beam is located the place ahead of foremost row negative pole line, installs bottom rapping mechanism in the front of locating beam, and this bottom rapping mechanism is the same with top rapping mechanism structure. Traditional rapping mechanism can only shake the deashing in top or bottom, but when rapping mechanism shakes and beats, the dynamics of shaking the vibrations can attenuate along with the transmission of distance, want to clear away the dust that is located negative plate intermediate position and distal end often needs great dynamics of shaking the vibrations, can shake the dust layer garrulous, cause the secondary raise dust, the clean requirement of deashing of satisfying that can not be better, the deashing efficiency has been reduced, if the dynamics of shaking the vibrations is less, can not make the dust layer break away from the negative plate, lead to removing dust thoroughly, the deashing efficiency has been reduced, cause the serious deposition in negative pole line surface.

The invention content is as follows:

the invention aims to solve the technical problem of providing a negative plate rapping device of an electric dust collector.

The technical problem to be solved by the invention is realized by adopting the following technical scheme: a negative plate rapping device of an electric dust collector, which comprises a cathode wire hanging rack and a cathode wire lower hanging rack which are parallel and horizontally arranged, the four ends of the cathode line hanging rack and the cathode line lower hanging rack are respectively and correspondingly connected and fixed through the fixing plate, a cathode wire component is vertically arranged between the cathode wire hanging rack and the cathode wire lower hanging rack, a connecting rack used for connecting the cathode wire component is horizontally arranged on the fixing plate, the cathode wire components are uniformly fixed between the cathode wire hanging rack and the connecting rack, between the connecting rack and between the connecting rack and the cathode wire lower hanging rack, the peripheral surface formed by enclosing the fixed plate, the cathode wire hanging rack and the cathode wire lower hanging rack is provided with a rotating shaft for arranging a vibrating device, the both ends of pivot rotate respectively and set up on the fixed plate, pivot level set up and the pivot setting in the link top, rapping device shake the link deashing via power device.

Preferably, the rapping device comprises a pair of mounting plates which are parallel to each other, the lower ends of the mounting plates are rotatably provided with hammers, the upper ends of the mounting plates are connected with a rotating shaft, and the hammers are used for rapping the lower connecting frame under the action of a power device.

Preferably, the power device is a rapping motor arranged on the fixed plate, and the output end of the rapping motor drives the rotating shaft to rotate through a power supply.

Preferably, the rotating shaft comprises an electric ceramic rotating shaft and a vibrating shaft with two ends connected with the electric ceramic rotating shaft.

Preferably, the connecting frame is of a uniform grid-shaped structure.

Compared with the prior art, the invention has the beneficial effects that:

1. the connecting frame for placing the rapping device is arranged between the cathode wire hanging frame and the cathode wire lower hanging frame, the rapping device is arranged on the connecting frame, the rapping points are more, the rapping force of each point is smaller, the rapping force of the whole frame is more uniform, the deformation of the rapping contact point is smaller, the force transmission and effectiveness are better, and the phenomenon that the rapping devices are arranged at two ends of the electric dust collector only in the prior art to cause larger and non-uniform rapping force is avoided;

2. each connecting frame is provided with a plurality of rapping devices, so that effective ash removal can be achieved only by small force, the deformation of the hammerhead is small due to small stress, the hammerhead can rotate, the contact point of rapping can be changed every time, the rapping deformation in the long-term rapping process can be avoided, and the service life of the rapping devices is prolonged;

3. after passing through electrostatic precipitator airflow distribution board, the upper and lower ash deposition of negative pole line part is even basically, and lower part dust granule is slightly thick, and rapping device shakes on the link and shakes the lower part acceleration slightly big, even the dust is hit the bits of broken glass in the lower part, because the granule is thick, the secondary flies upward also less, and lies in the negative pole line part deposition of lower part and massively whereabouts, and whole deashing process secondary process flies upward less.

Description of the drawings:

FIG. 1 is a schematic diagram of the inventive structure;

FIG. 2 is a schematic view of the assembly structure of the rotating shaft and the rapping device in accordance with the present invention;

FIG. 3 is a schematic view of the assembly structure of the power unit, the rotating shaft and the rapping device in accordance with the present invention;

in the figure: 1-cathode line hanging rack; 2-cathode line lower hanging rack; 3, fixing a plate; 4-a cathode line member; 5-a connecting frame; 6-a rotating shaft; 61-rapping shaft; 62-an electric porcelain rotating shaft; 7-a rapping device; 71-a mounting plate; 72-hammer head; 8-a power device.

The specific implementation mode is as follows:

in order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further clarified below by combining the specific drawings and the embodiments.

The first embodiment is as follows:

as shown in figure 1, an electrostatic precipitator negative plate rapping device, including the cathode ray stores pylon 1 and the lower stores pylon 2 of cathode ray that are parallel to each other and the level sets up, cathode ray stores pylon 1 and the lower stores pylon 2 of cathode ray correspond via fixed plate 3 respectively and connect fixedly, be equipped with negative pole line part 4 under cathode ray stores pylon 1 and the cathode ray between stores pylon 2 perpendicularly, negative pole line part both ends are equipped with the connecting hole, fixed plate 3 is gone up the level welded fastening and is had the link 5 that is used for connecting negative pole line part 4, connecting hole that negative pole line part 4 was equipped with through both ends is even fixes between cathode ray stores pylon 1 and link 5, between link 5 and the lower stores pylon 2 of cathode ray, fixed plate 3, be equipped with the pivot 6 that is used for installing vibrating device 7 on the peripheral surface that stores pylon 2 encloses and closes formation under cathode ray stores pylon 1 and the cathode ray, the both ends of pivot 6 are passed through the bearing and are set up the bearing frame that rotates respectively The rotating shaft 6 is horizontally arranged, the rotating shaft 6 is positioned above the connecting frame 5, and the rapping device 7 raps the connecting frame 5 through the power device 8 to perform ash removal.

The mechanism of rapping of prior art can only shake at both ends and shake the deashing, but when the mechanism of rapping along with both ends shakes and beats, the dynamics of shaking and beating can attenuate along with the transmission of distance, want to clear away the dust that is located the negative pole line intermediate position often needs great dynamics of shaking and beating, can shake the dust layer garrulous, cause the secondary raise dust, the clean requirement of the deashing of satisfying that can not be better, the deashing efficiency has been reduced, if the dynamics of shaking and beating is less, can not make the dust layer break away from the negative pole line, lead to removing dust thoroughly, the deashing efficiency has been reduced, cause the serious deposition in negative plate surface. According to the cathode plate rapping device of the electric dust collector, the connecting frame 5 for placing the rapping device 7 is arranged between the cathode wire hanging frame 1 and the cathode wire lower hanging frame 2, the rapping devices 7 are arranged on the connecting frame 5, the number of rapping points is large, the rapping force of each point is small, the rapping force of the whole frame is uniform, the deformation of rapping contact points is small, the force transmission and effectiveness are good, and the phenomenon that the rapping force is large and uneven due to the fact that the rapping devices are only arranged at the two ends of the electric dust collector in the prior art is avoided; each connecting frame is provided with a plurality of rapping devices 7, so that effective ash removal can be achieved only by small force, the deformation of the hammerhead 72 is small due to small stress, the hammerhead 72 can rotate, the contact point of each rapping can be changed, the rapping deformation in the long-term rapping process can be avoided, and the service life of the rapping devices 7 is prolonged; after passing through electrostatic precipitator airflow distribution board, the upper and lower ash deposition of negative pole line part 4 is even basically, and lower part dust granule is slightly thick, and the rapping device 7 is beaten on link 5 and is beaten 4 lower parts accelerations of negative pole line part and slightly big, even the dust is beaten the bits of broken glass, because the granule is thick, the secondary flies upward also less, and lies in the 4 deposition slabbing whereabouts of negative pole line part of lower part, and whole deashing process secondary process flies upward less.

As shown in fig. 2 and 3, the rapping device 7 comprises a pair of mounting plates 71 which are parallel to each other, the lower ends of the mounting plates 71 are rotatably connected with the hammers 72 through pin shafts, the upper ends of the mounting plates 71 are connected with the rotating shafts 6, and the hammers 72 vibrate the lower connecting frame 5 through the action of the power device 8, so that more rapping devices 7 are arranged, more rapping points are arranged, the rapping force of each point is smaller, the rapping force ratio of the whole frame is more uniform, the deformation of the rapping contact point is smaller, the force transmission and the effectiveness are better, and the phenomenon that the rapping force is larger and non-uniform because the rapping devices are only arranged at the two ends of the electric precipitator in the prior art is;

as shown in fig. 1 and 3, the power device 8 comprises a rapping motor arranged on the fixed plate 3, the output end of the rapping motor drives the rotating shaft 6 to rotate via the power supply, so that the rotating shaft 6 is driven to rotate by the rapping motor, and the rapping device 8 positioned on the rotating shaft 6 is driven to rotate, so that the hammer head 72 raps on the connecting frame 5, and the ash removal effect is achieved.

As shown in fig. 1 and 3, the rotating shaft 6 includes an electric porcelain rotating shaft 62 and a rapping shaft 61 connected with the electric porcelain rotating shaft 62 at both ends, so that the electric porcelain rotating shaft 62 is provided to perform a transmission and insulation function.

Example two:

as shown in fig. 1, the structure of this embodiment is substantially the same as that of the embodiment, and the description of the same parts is omitted, except that: the link 5 is even latticed structure, and latticed structure can make more convenient when equipment negative pole line part 4, and simultaneously, the negative pole line part 4 after the equipment distributes evenly, promotion deashing effect that can be very big.

The foregoing shows and describes the general principles, essential features, and inventive features of this invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An electrostatic precipitator negative plate rapping device, includes that the negative pole line stores pylon (1) and the lower stores pylon of negative pole line (2) that are parallel to each other and the level set up, under negative pole line stores pylon (1) and the negative pole line stores pylon (2) four ends correspond through fixed plate (3) respectively and connect fixedly, under negative pole line stores pylon (1) and the negative pole line stores pylon (2) between be equipped with negative pole line part (4) perpendicularly, its characterized in that, fixed plate (3) go up the level and be equipped with link (5) that are used for connecting negative pole line part (4), negative pole line part (4) even fix between negative pole line stores pylon (1) and link (5), between link (5) and under negative pole line stores pylon (2), fixed plate (3), negative pole line stores pylon (1) and the lower stores pylon of negative pole line (2) connect the periphery surface that forms and be equipped with the pivot that is used for arranging vibrating device (6), the two ends of the rotating shaft (6) are respectively and rotatably arranged on the fixed plate (3), the rotating shaft (6) is horizontally arranged, the rotating shaft (6) is arranged above the connecting frame (5), and the rapping device (7) raps the connecting frame (5) for deashing through a power device (8);

the connecting frame (5) is of a uniform latticed structure.

2. An electrostatic precipitator cathode plate rapping device in accordance with claim 1, wherein said rapping device (7) comprises a pair of mounting plates (71) parallel to each other, said mounting plates (71) lower end rotate and are provided with hammers (72), said mounting plates (71) upper end connect with the rotating shaft (6), said hammers (72) act via the power device (8) to shake down the connection frame (5).

3. An electrostatic precipitator cathode plate rapping device in accordance with claim 2, wherein said power device (8) is a rapping motor disposed on the fixed plate (3), and the output end of said rapping motor is rotated by a power source driving the rotating shaft (6).

4. An electrostatic precipitator cathode plate rapping device in accordance with claim 3, wherein said shaft (6) comprises an electroceramic shaft (62) and a rapping shaft (61) having both ends connected to the electroceramic shaft (62).