CN218359940U

CN218359940U - Novel electric dust remover with conductive filter tanks

Info

Publication number: CN218359940U
Application number: CN202220867670.3U
Authority: CN
Inventors: 章荣发; 赖荣泉; 黄文�
Original assignee: Fujian Xinlong Environmental Protection Co ltd
Current assignee: Fujian Xinlong Environmental Protection Co ltd
Priority date: 2022-04-03
Filing date: 2022-04-03
Publication date: 2023-01-24
Anticipated expiration: 2032-04-03

Abstract

A novel electric dust collector with a conductive filter tank comprises a shell and more than two high-efficiency electric fields; each high-efficiency electric field comprises a plurality of first cathode wire groups, a plurality of first anode plate rows and a row of air-permeable conductive filter cells arranged at the downstream of the first cathode wire groups; each conductive filter cell comprises one or a plurality of metal wire meshes or porous foam metal plates with metal sealing edges fixedly arranged at the edges of the conductive filter cells which are connected up and down; one to three auxiliary electrode tubes connected with the first cathode wire set positioned right in front of the conductive filter cells are arranged between any two adjacent left and right conductive filter cells; the discharge property of the auxiliary electrode tube is significantly weaker than that of the first cathode line. In a channel between any two adjacent left and right conductive filter cells, dust in the airflow can continue or start to be charged; at the same time, the charged and positively charged dusts migrate toward the corresponding conductive filter cell and the auxiliary electrode tube, respectively, and a part of the charged and positively charged dusts are deposited on the surfaces thereof, respectively.

Description

Novel electric dust remover with conductive filter tanks

Technical Field

The utility model relates to an electric precipitation technical field especially relates to a new-type electrically conductive filter cell electrostatic precipitator.

Background

In a high-voltage electric field of the electric dust collector, a large amount of electrons and positive ions are generated through corona discharge; when the dust meets the dust in the flue gas in the process of moving towards the heteropolar electrode, the dust becomes negatively charged dust or positively charged dust; then, the negatively and positively charged dusts respectively tend to the anode and the cathode under the action of the electric field force, and most of the negatively and positively charged dusts are respectively deposited on the anode and the cathode, thereby realizing the purpose of purifying the flue gas.

When the dust-containing flue gas travels to the section of any electric field inlet in the electric dust collector, the dust concentration distribution at each electric field channel inlet is approximately uniform; however, when the dust-containing flue gas travels to the end of each electric field channel, the flue gas closer to the surface of the anode plate has a higher dust concentration, while the flue gas farther from the surface of the anode plate has a lower dust concentration. Obviously, most of the dust escaping from the electric field escapes along the surface of the anode plate at the rear of the electric field. Thus, some people have placed a row of air permeable conductive filter cells downstream of the anode plate rows of several electric fields of an electric precipitator. Because the air inlets of the conductive filter tanks face the air outlet end of the anode plate positioned right in front of the conductive filter tanks, most of charged dust escaping from the surface of the anode plate at the rear part of the electric field and most of secondary raised dust generated when the anode plate at the upstream of the conductive filter tanks is used for discharging dust by rapping can enter the conductive filter tanks along with the air flow, and then the charged dust is effectively collected under the dual actions of electrostatic adsorption and interception filtration, so that the concentration of the dust at the outlet of the electric fields and the electric dust remover is obviously reduced.

Because a part of dust, especially PM2.5 dust, entering through the air inlet of the conductive filter cell along with the air flow can pass through the conductive filter cell with air permeability along with the air flow and escape to the next electric field or the outlet end of the electric dust collector; in addition, when the conductive filter cells and the anode plate rows located at the upstream of the conductive filter cells are subjected to rapping dust removal, a part of secondary dust generated can escape to the next electric field or the outlet end of the electric dust collector along with the airflow from the channel between the left and right adjacent conductive filter cells in the conductive filter cells, so that the concentration of the smoke dust at the outlet of the electric dust collector with the conventional conductive filter cells is still a little higher, namely, the dust removal efficiency of the electric dust collector with the conventional conductive filter cells is still to be improved.

Therefore, how to significantly improve the collection efficiency of the conductive filter cell for the charged dust escaping from the surface of the anode plate along the rear part of the electric field and the secondary dust generated when the conductive filter cell and the anode plate row located at the upstream of the conductive filter cell are rapped for dust removal is a technical problem which needs to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model provides a new-type electrically conductive filter cell electrostatic precipitator, aim at improve the electrically conductive filter cell to the electric charge dust that escapes along the anode plate surface at electric field rear portion with when arranging the positive plate that shakes to electrically conductive filter cell and be located its upper reaches and shake the entrapment efficiency of the secondary raise dust that produces when shaking the deashing to improve electrically conductive filter cell electrostatic precipitator's dust collection efficiency remarkably.

The utility model adopts the following technical proposal:

a novel electric dust remover with a conductive filter tank comprises a shell and more than two high-efficiency electric fields; each high-efficiency electric field comprises a plurality of first cathode line groups, a plurality of first anode plate rows and a row of air-permeable conductive filter cells arranged at the downstream of the first cathode line groups; each first cathode line group comprises a plurality of first cathode lines; a plurality of first cathode wires of the first cathode wire set are arranged between any two left and right adjacent first anode plate rows of the plurality of first anode plate rows; the air inlet of each conductive filter tank in the row of conductive filter tanks faces the air outlet end of the first anode plate positioned right in front of the conductive filter tank; each conductive filter cell in the row of conductive filter cells comprises one or a plurality of metal wire meshes or porous foam metal plates with metal edge seals fixedly arranged at the edges of the conductive filter cells which are connected up and down; one to three auxiliary electrode tubes connected with the first cathode wire set positioned right in front of the conductive filter cells are arranged between any two left and right adjacent conductive filter cells in the row of conductive filter cells; the outer wall of the auxiliary electrode tube is smooth, and the cross section of the auxiliary electrode tube is circular or nearly circular or oval; the discharge property of the auxiliary electrode tube is significantly weaker than that of the first cathode line.

Preferably, the one to three auxiliary electrode tubes are fixedly connected to a first cathode frame on which the first cathode line group located right in front thereof is mounted, or are fixedly mounted on the same first cathode frame together with the first cathode line group located right in front thereof.

Preferably, the wall thickness of the auxiliary electrode tube is between 1.0mm and 3.5 mm; the equivalent diameter of the auxiliary electrode tube is between 16mm and 48 mm.

Preferably, two transverse connecting rods parallel to the air inlet of the conductive filter tank are horizontally arranged in the conductive filter tank, wherein one transverse connecting rod is close to the upper edge of the air inlet, and the other transverse connecting rod is close to the lower edge of the air inlet; the left end and the right end of the transverse connecting rod are respectively welded with the left side and the right side of the conductive filter tank.

Preferably, an auxiliary dust collecting plate connected with each first anode plate row or a cylindrical porous blowing dust cleaning pipe is vertically arranged at the downstream of each first anode plate row;

the arrangement direction of the auxiliary dust collecting plate is parallel to the arrangement direction of the first anode plate positioned right in front of the auxiliary dust collecting plate; the auxiliary dust collecting plate is made of 1Cr18Ni9; the thickness of the auxiliary dust collecting plate is between 1.5mm and 2.0mm; the width of the wind-proof ditches at the two sides of the auxiliary dust collecting plate is equal to or close to that of the wind-proof ditches at the two sides of the first anode plate;

the front wind-proof groove of the auxiliary dust collecting plate is fixedly connected with the rear wind-proof groove of the first anode plate, and the rear wind-proof groove of the auxiliary dust collecting plate is fixedly connected with the rear end of the corresponding conductive filter tank;

the lower end of the auxiliary dust collecting plate is fixedly connected with an auxiliary fixing plate; the lower end of the auxiliary fixing plate is welded on the rear part of the dowel bar of the rapping bar of the corresponding first anode plate row, or the lower end of the auxiliary fixing plate is welded on an auxiliary dowel bar, and the front end of the auxiliary dowel bar is welded with the rear end of the dowel bar of the rapping bar of the corresponding first anode plate row;

the porous blowing ash removal pipe is vertically arranged in the conductive filter tank which is positioned at the downstream of the first anode plate row right in front of the porous blowing ash removal pipe; the porous blowing dust removal pipe is provided with a plurality of areas provided with dust blowing holes at equal intervals along the height direction; a plurality of dust blowing holes are symmetrically arranged in the left and right of each area provided with the dust blowing holes; the air outlets of the dust blowing holes face the conductive filter tank.

Preferably, the upper end edge and the lower end edge of the wire mesh or the porous foam metal plate are respectively and fixedly provided with a horizontally arranged high-position groove-shaped metal sealing edge and a low-position groove-shaped metal sealing edge which is structurally symmetrical with the high-position groove-shaped metal sealing edge, and the left front side edge and the right front side edge of the wire mesh or the porous foam metal plate are respectively and fixedly provided with a left front side strip-shaped metal sealing edge and a right front side strip-shaped metal sealing edge which is structurally symmetrical with the left front side strip-shaped metal sealing edge and the right front side strip-shaped metal sealing edge; the upper end of the left front side strip-shaped metal seal edge and the upper end of the right front side strip-shaped metal seal edge are respectively welded with the left front end and the right front end of the high-position groove-shaped metal seal edge, and the lower ends of the left front side strip-shaped metal seal edge and the right front end of the low-position groove-shaped metal seal edge are respectively welded with the left front end and the right front end of the low-position groove-shaped metal seal edge; in each conductive filter tank, each high-position groove-shaped metal sealing edge is welded with one low-position groove-shaped metal sealing edge vertically adjacent to the high-position groove-shaped metal sealing edge.

Preferably, the cross section of the metal wire mesh or the porous foam metal plate is U-shaped or V-shaped, or a trapezoidal groove.

Preferably, the wire mesh is formed by weaving or welding a plurality of stainless steel wires or a plurality of manganese-nickel alloy fibers;

the wire mesh has an open area ratio of 30 to 80% and an equivalent diameter of mesh of 1 to 5mm; the thickness of the porous foam metal plate is between 10mm and 30 mm; the porosity of the porous metal foam sheet is between 50% and 90%.

Preferably, at least in the high-efficiency electric field, another row of conductive filter cells is arranged behind the row of conductive filter cells; the air inlet of each conductive filter cell in the other row of conductive filter cells is parallel to the air inlet of any conductive filter cell in the row of conductive filter cells and faces the auxiliary electrode tube or the first cathode frame located right in front of the conductive filter cell.

Preferably, a plurality of common electric fields are arranged at the upstream of the more than two high-efficiency electric fields; the common electric field comprises a plurality of second cathode line groups and a plurality of second anode plate rows, and the second cathode line groups are correspondingly arranged in the electric field channels one by one.

The utility model provides an in every high-efficient electric field of new-type electrically conductive filter cell electrostatic precipitator, along the most lotus electric dust that escapes on the first anode plate surface at high-efficient electric field rear portion, and right produced most secondary raise dust when a plurality of first anode plate row shakes and beats the deashing all can get into the setting along with the air current and be in one row of a plurality of first anode plate row low reaches has the electrically conductive filter cell of gas permeability, and wherein every electrically conductive filter cell all includes a plurality of edges that meet all fixed wire mesh or the porous foam metal sheet that is provided with the metal banding about or to by its entrapment effectively under electrostatic absorption and the filterable dual function of interception.

One to three auxiliary electrode tubes which are connected with the first cathode line group positioned right in front of the first cathode line group and have smooth outer walls are arranged between any two adjacent left and right conductive filter cells in the row of conductive filter cells, so that negative high-voltage electricity is applied to the first cathode line group and the auxiliary electrode tubes at the same time. Therefore, the charged dust which does not escape along the surface of the first anode plate at the rear part of the high-efficiency electric field, the dust which passes through the conductive filter cells along with the airflow and a part of secondary dust generated when the rows of the plurality of first anode plates and the row of the conductive filter cells are rapped for ash removal can continue to be charged or start to be charged after entering a channel between any two adjacent left and right conductive filter cells in the row of the conductive filter cells; meanwhile, the negatively and positively charged dust respectively migrates towards the corresponding conductive filter cell and the auxiliary electrode tube under the action of the electric field force, and a part of the negatively and positively charged dust is respectively deposited on the side part of the corresponding conductive filter cell (note: the outer side of a part of the metal sealing edge of the conductive filter cell) and the surface of the corresponding auxiliary electrode tube. Therefore, the plurality of auxiliary electrode tubes are arranged, the outlet smoke concentration of each high-efficiency electric field can be obviously reduced without specially equipping the auxiliary electrode tubes and the conductive filter cells with high-voltage power supply devices, and the dust removal efficiency of the novel conductive filter cell electric dust remover is obviously improved.

In addition, because the edges of the metal wire mesh or the porous foam metal plate of the conductive filter cell are fixedly provided with the metal sealing edges, the rigidity of the conductive filter cell can be obviously enhanced, and the conductive filter cell is convenient to install and/or assemble. In addition, because the metal sealing edges are directly and fixedly arranged on the edges of the metal wire mesh or the porous foam metal plate, no other connecting parts are required to be added, and the thickness of the part of the metal sealing edge fixedly arranged outside the edges of the metal wire mesh or the porous foam metal plate is smaller, the metal sealing edge only slightly reduces the distance between the conductive filter cell and the auxiliary electrode tube adjacent to the conductive filter cell, and naturally, the metal sealing edge has little or no adverse effect on the breakdown voltage and the operating voltage of the high-efficiency electric field.

Furthermore, because the one to three auxiliary electrode tubes are fixedly connected with a first cathode frame provided with a first cathode line group positioned right ahead of the auxiliary electrode tubes, or are fixedly arranged on the same first cathode frame together with the first cathode line group positioned right ahead of the auxiliary electrode tubes, a special suspension device and a rapping dust removal device for the auxiliary electrode tubes can be saved, so that the manufacturing cost of the electric dust remover is further reduced, and the auxiliary electrode tubes are firmly and fixedly arranged on a cathode system of the electric dust remover, so that the probability that the auxiliary electrode tubes break (or called broken lines) and cause short circuit of the high-efficiency electric field is remarkably reduced, and when the cathode system of the electric dust remover is rapped for dust removal, the auxiliary electrode tubes can obtain proper large rapping acceleration as the first cathode lines of the first cathode line group positioned right ahead of the auxiliary electrode tubes, and obtain good dust removal effect.

Furthermore, the thickness of the tube wall of the auxiliary electrode tube with the circular or nearly circular or oval cross section is between 1.0mm and 3.5mm, and the equivalent diameter is between 16mm and 48mm, so that the surface area of the auxiliary electrode tube per meter is larger, and the mass (unit: kilogram) of the auxiliary electrode tube per meter is smaller, that is, the area of the auxiliary electrode tube per meter for collecting positively charged dust is larger, and the mass of the auxiliary electrode tube per meter is smaller. Therefore, the auxiliary electrode tube and the novel electric filter tank electric dust remover have higher cost performance.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.

Fig. 2 is a partial enlarged view at I in fig. 1.

Fig. 3 is a partial enlarged view at II in fig. 2.

Fig. 4 is a schematic view of the installation manner of the first row of auxiliary dust collecting plates and the two rows of conductive filter cells in the first high-efficiency electric field according to the first embodiment of the present invention.

Fig. 5 is a schematic structural view of another conductive filter cell according to the first embodiment of the present invention.

Fig. 6 is a schematic structural diagram of a second embodiment of the present invention.

Fig. 7 is a partial enlarged view at III in fig. 6.

Fig. 8 is a partial enlarged view at IV in fig. 6.

Fig. 9 is a partially enlarged view of V in fig. 7.

Fig. 10 is a schematic view of the installation manner of one row of auxiliary dust collecting plates and two rows of conductive filter cells in the second high-efficiency electric field according to the second embodiment of the present invention.

Fig. 11 is a schematic structural view of another conductive filter cell according to a second embodiment of the present invention.

Detailed Description

In order to make the objects and technical solutions of the present invention clearer, the contents of the present invention will be further described below with reference to the accompanying drawings and embodiments.

First embodiment

As shown in fig. 1-5, the utility model provides a new-type electrically conductive filter cell electrostatic precipitator, including inlet fume box 10, casing 20, first high-efficient electric field, the high-efficient electric field of second and outlet fume box 70, wherein first high-efficient electric field and the high-efficient electric field of second are equipped with high voltage power supply unit 81, high voltage power supply unit 82 respectively.

Each high-efficiency electric field comprises eight first cathode line groups 30 and nine first anode plate rows 40 which are arranged in parallel and alternately, and a row of auxiliary dust collecting plates and a row of conductive filter tanks which are arranged behind the nine first anode plate rows 40, and also comprises another row of conductive filter tanks which are arranged behind the row of conductive filter tanks and eight porous blowing dust removing pipes 56 which are fixedly arranged in the conductive filter tanks, wherein the distance b between any two adjacent first cathode line groups 30 on the left and right is 400mm. Each conductive filter cell 50 in the two rows of conductive filter cells comprises a plurality of metal wire meshes 51 which are connected up and down and are fixedly provided with metal sealing edges at the edges; moreover, two auxiliary electrode tubes 32 connected to the first cathode line set 30 located right in front of any two left and right adjacent conductive filter cells 50 in the row of conductive filter cells are disposed between the two adjacent conductive filter cells 50 — naturally, each high-efficiency electric field does not need to be specially equipped with a set of high-voltage power supply device for the auxiliary electrode tubes 32 and the conductive filter cells 50.

Each first anode plate row 40 includes eight first anode plates 41, and a plurality of limiting clamps 43 are disposed between any two front and rear adjacent first anode plates 41, wherein each limiting clamp 43 is fixed on the wind-proof trench of one first anode plate 41 through two bolts, two nuts and two washers. The upper end of each first anode plate 41 is fixedly connected with a first hanging plate (note: not shown in the figure) positioned right above the first anode plate through two bolts, two nuts, two conical spring washers and two large washers respectively, each first hanging plate is fixedly connected with a hanging steel plate (note: not shown in the figure) of a first anode plate hanging beam, and the lower end of each first anode plate 41 is fixedly connected with a first fixing plate (note: not shown in the figure) of the first anode rapping rod 42 positioned right below the first anode plate through two bolts, two nuts, two conical spring washers and two large washers. All the bolts and the nuts are firmly welded by spot welding after being screwed so as to avoid the problems of loose connection and even nut falling off.

The row of conductive filter cells comprises nine conductive filter cells 50; the air inlet of each conductive filter cell 50 faces the air outlet of the first anode plate 41 directly in front of and connected to the same, so as to effectively trap the charged dust escaping along the surface of the first anode plate 41 behind the high-efficiency electric field. The metal seal edge fixedly arranged at the edge of the upper end behind the conductive filter tank 50, namely the rear end of the high-position groove-shaped metal seal edge (I) positioned at the top end of the conductive filter tank 50, is fixedly connected (preferably welded) with a filter tank hanging plate 59 provided with a round hole in the middle, wherein the round hole is positioned above and behind the conductive filter tank 50; the installation direction of the filter tank hanging plate 59 is parallel to the installation direction of the first anode plate 41; the conductive filter cell 50 is suspended on a pair of filter cell lifting lugs 21 fixedly arranged on the top plate of the shell 20 through a filter cell hanging plate 59, a bolt, a nut and a gasket which are connected with the conductive filter cell 50, wherein the two filter cell lifting lugs 21 are respectively arranged on the left side and the right side of the filter cell hanging plate 59, and a transverse waist-shaped hole is respectively arranged in the middle of each filter cell lifting lug 21 so as to facilitate the movement of the bolt, thereby obviously improving the vibration acceleration of the conductive filter cell 50 and the first anode plate row 40 (note: when the conductive filter cell 50 and the first anode plate row 40 are vibrated to clean dust). It should be noted that all the bolts and nuts must be spot welded firmly after being tightened, so as not to cause the problems of loose connection and even nut falling.

A first cathode line group 30 is disposed between any two left and right adjacent first anode plate rows 40 of the nine first anode plate rows 40, and the sixteen first cathode lines 31 of the first cathode line group 30 are fixedly mounted on a first cathode frame 33 together.

Two auxiliary electrode tubes 32 connected to the first cathode line set 30 located right in front of any two adjacent left and right conductive filter cells 50 of the nine conductive filter cells 50 are disposed between the two adjacent left and right conductive filter cells 50, so that negative high voltage is applied to the first cathode line set 30 and the auxiliary electrode tubes 32 at the same time. The outer wall of the auxiliary electrode tube 32 is smooth, the tube wall thickness is 2.0mm, and the equivalent diameter is equal to 20mm (note: 40mm can be changed).

The first cathode line 31 is a CS10A needle-punched line, the diameter of the main body (i.e., round steel) thereof is equal to 8mm, and a plurality of line needles having conical needle points are mounted on the main body thereof. Of course, the first cathode line 31 may be changed to other fishbone needle lines or V _H The wire or the sawtooth prickle wire or the tubular prickle wire can be adopted, and the star-shaped wire or the hemp wire or the CW09A wave wire can be also adopted as the second high-efficiency electric field.

The cross section of the auxiliary electrode tube 32 is circular (note: the cross section can be changed to be nearly circular, and the part with larger curvature of the nearly circular shape faces the air inlet smoke box 10 or the air outlet smoke box 70), the center of the circle is located on the symmetrical center line of the first cathode line group 30, the outer wall of the auxiliary electrode tube 32 is smooth, the first cathode line 31 is provided with a plurality of line needles with conical needle points, and the equivalent diameter of the line needles is significantly larger than the main body diameter of the first cathode line 31, so the discharge performance of the auxiliary electrode tube 32 is significantly weaker than that of the first cathode line 31.

Therefore, although the distance between the two auxiliary electrode tubes 32 and the two conductive filter cells 50 located on the left and right sides thereof is slightly smaller than the distance between the sixteen first cathode lines 31 and the two first anode plate rows 40 located on the left and right sides thereof, the breakdown voltage and the operating voltage of the two high-efficiency electric fields are not reduced by disposing the two auxiliary electrode tubes 32 between any two left and right adjacent conductive filter cells 50. Naturally, the two auxiliary electrode tubes 32 do not reduce the efficiency of the first anode plate row 40 in collecting the charged dust in the air flow nor the two conductive filter cells 50 on the left and right sides and the conductive filter cell 50 directly behind.

The two auxiliary electrode tubes 32 are fixedly connected to a first cathode frame 33 on which the first cathode line group 30 is mounted directly in front thereof via horizontal connection tubes 34 having good electrical conductivity. For example, each horizontal connection pipe 34 has a semicircular recess formed at its front end and welded to the rear side of the first cathode frame 33, and two through holes formed at its rear end, and the two auxiliary electrode pipes 32 are welded to the rear side after passing through the two through holes — naturally, the two auxiliary electrode pipes 32 are electrically connected to the first cathode line group 30 located right in front of the first cathode line group. This method of connecting the auxiliary electrode tubes 32 to a first cathode frame 33 on which a first cathode line group 30 is installed directly in front of it can be applied to both a newly constructed electric precipitator project and an old electric precipitator project.

Thus, the auxiliary electrode tube 32 is fixedly connected to the first cathode frame 33, which not only saves a suspension device and a rapping dust-cleaning device special for the auxiliary electrode tube 32, thereby further reducing the manufacturing cost of the electric dust collector, but also can ensure that the auxiliary electrode tube 32 is more firmly and fixedly connected to a cathode system of the electric dust collector, thereby remarkably reducing the probability that the auxiliary electrode tube 32 is broken (or called broken) and causes the short circuit of the high-efficiency electric field; moreover, when the cathode system of the electric dust collector is subjected to rapping dust removal, the two auxiliary electrode tubes 32 can obtain a proper large rapping acceleration and obtain a good dust removal effect like sixteen first cathode wires 31 of the first cathode wire group 30 positioned right in front of the two auxiliary electrode tubes. In addition, it is not necessary to specially provide the auxiliary electrode tube 32 and the conductive filter cell 50 with a high voltage power supply.

In any of the above high-efficiency electric fields, the other row of conductive filter cells includes eight conductive filter cells 50, wherein the air inlet of each conductive filter cell 50 is parallel to the air inlet of any conductive filter cell 50 in the row of conductive filter cells and faces the auxiliary electrode tube 32 directly in front of the conductive filter cell, so as to effectively capture the charged dust escaping from the passage between any left and right adjacent conductive filter cells 50 in the row of conductive filter cells along with the air flow. Of course, the distance between each conductive filter cell 50 of the other row of conductive filter cells and the auxiliary electrode tube 32 and the horizontal connecting tubes 34 located right in front of the conductive filter cell should be slightly greater than or equal to the distance between the two auxiliary electrode tubes 32 and the two conductive filter cells 50 located on the left and right sides of the two auxiliary electrode tubes 32.

Because two auxiliary electrode tubes 32 connected with the first cathode wire set 30 located right in front of any two left and right adjacent conductive filter cells 50 in the row of conductive filter cells are arranged between any two left and right adjacent conductive filter cells 50 in the row of conductive filter cells, charged dust which does not escape along the surface of the first anode plate 41 behind the high-efficiency electric field, dust which escapes from meshes of the wire mesh 51 of the conductive filter cell 50 along with the air flow, and a part of secondary raise dust generated when the row of conductive filter cells is rapped for dust removal can continue to be charged or start to be charged after entering a channel between any two left and right adjacent conductive filter cells 50 in the row of conductive filter cells; meanwhile, the negatively and positively charged dusts migrate toward the corresponding conductive filter cell 50 and the auxiliary electrode tube 32, respectively, under the action of the electric field force, and a portion of the negatively and positively charged dusts will be deposited on the side portion of the corresponding conductive filter cell 50 (note: the outer side including a portion of the metal seal edge thereof) and the surface of the corresponding auxiliary electrode tube 32, respectively.

In addition, the auxiliary electrode tubes 32 can also be increased remarkably, and the electrostatic adsorption effect of the other row of conductive filter cells on the charged dust can be enhanced remarkably as the airflow escapes from the channel between any two adjacent left and right conductive filter cells 50 in the row of conductive filter cells and then enters the charged amount of the charged dust in the other row of conductive filter cells along with the airflow.

In summary, in any of the above high-efficiency electric fields, the arrangement of the plurality of auxiliary electrode tubes 32 can significantly reduce the dust concentration of the outlet flue gas of the corresponding high-efficiency electric field, thereby significantly improving the dust removal efficiency of the novel electric precipitator with conductive filter troughs.

The row of auxiliary dust collecting plates has nine auxiliary dust collecting plates 60. The rear wind-proof groove of the last first anode plate 41 in each first anode plate row 40 is fixedly connected with the front wind-proof groove of an auxiliary dust collecting plate 60 vertically arranged right behind the rear wind-proof groove through a plurality of bolts 62, a plurality of nuts and a plurality of washers; the installation direction of the auxiliary dust collecting plate 60 is parallel to the installation direction of the first anode plate 41; the rear windproof communication of the auxiliary dust collecting plate 60 is fixedly connected with the rear ends of a plurality of high-position groove-shaped metal sealing edges (I) and/or the rear ends of a plurality of low-position groove-shaped metal sealing edges (I) 52 of the conductive filter tank 50 positioned right behind the front windproof groove of the auxiliary dust collecting plate through a plurality of bolts 62, a plurality of nuts, a plurality of conical spring washers and a plurality of large washers. All the bolts 62 and nuts are spot welded firmly after being tightened, so that the problem that the connection is loosened and even the nuts fall off is avoided.

The lower end of the auxiliary dust collecting plate 60 is connected with an auxiliary fixing plate 61 through two bolts, two nuts, two conical spring washers and two large washers (note: not shown in the figure), and all the bolts and the nuts are firmly welded by spot welding after being screwed so as to avoid the problems of loose connection and even nut falling; two bolt holes (note: not shown in the figure) are formed in the upper portion of the auxiliary fixing plate 61; the lower end of the auxiliary fixing plate 61 is welded to the rear of the dowel bar 42 of the rapping bar of one of the first anode plate rows 40 located directly below it.

It should be noted that the ends of the force-transmitting rods 42 of the rapping rods of each first anode plate row 40 are close to the air outlet end of the auxiliary dust collecting plate 60 located directly above the same (note: their rear wind-proof grooves), while the ends of the force-transmitting rods of the rapping rods of the conventional anode plate row are close to the air outlet end of the anode plate located at the rearmost (note: when the anode rapping shaft is located in front of the anode plate row). Obviously, when the total width of the anode plate rows is equal, the length of the force transmission rod 42 of the rapping bar of each first anode plate row 40 is approximately greater than the length of the force transmission rod of the rapping bar of a common anode plate row by the width of one auxiliary dust collecting plate 60.

The auxiliary dust collecting plate 60 is made of 1Cr18Ni9; the thickness of the auxiliary dust collecting plate 60 is equal to 1.5mm; the width of the wind-proof groove on both sides of the auxiliary dust-collecting plate 60 is close to (note: allowed to be changed to be equal to) the width of the wind-proof groove on both sides of the first anode plate 41, so that the auxiliary dust-collecting plate 60 is fixedly connected with the first anode plate 41.

Obviously, the nine auxiliary dust collecting plates 60 can also collect a part of the charged dust which escapes along the surface of the first anode plate 41 at the rear part of the high-efficiency electric field and then enters the conductive filter cells 50 along with the airflow. In addition, by means of the nine auxiliary dust collecting plates 60, the nine auxiliary fixing plates 61 and the transmission rods 42 of the rapping rods of the nine first anode plate rows 40, the conductive filter cells 50 in the row of conductive filter cells are respectively and fixedly connected with the first anode plate row 40 positioned right in front of the conductive filter cells, so that the stability of the conductive filter cells 50 is enhanced, and the conductive filter cells 50 can obtain a proper rapping acceleration when the first anode plate row 40 positioned right in front of the conductive filter cells is rapped to perform rapping dust removal.

In each conductive filter cell 50 of the other row of conductive filter cells, a perforated cylindrical soot blowing pipe 56 is vertically disposed. A plurality of areas provided with dust blowing holes are arranged at equal intervals along the height direction of the porous blowing dust removing pipe 56; a plurality of dust blowing holes are symmetrically formed in the left and right of each area provided with the dust blowing holes; the air outlets of the dust blowing holes face the conductive filter tank 50. Of course, a cylindrical porous dust blowing and cleaning pipe 56 may be vertically disposed in each conductive filter cell 50 in the row of conductive filter cells — then, nine auxiliary dust collecting plates 60 connected thereto cannot be disposed behind the nine first anode plate rows 40 in a one-to-one correspondence.

The rear end of each conductive filter cell 50 in the other row of conductive filter cells is fixedly connected with a longitudinal connecting piece 55, preferably, the rear ends of a plurality of high-position groove-shaped metal sealing edges (I) and a plurality of low-position groove-shaped metal sealing edges (I) 52 of each conductive filter cell 50 are welded with the longitudinal connecting piece 55; a cylindrical cell rapping anvil 58 is also welded to the bottom end of each longitudinal connecting member 55. In addition, a transverse angle steel 22 parallel to the air inlet is arranged behind the eight conductive filter cells 50 of the other row of conductive filter cells; the upper ends of the eight longitudinal connecting pieces 55 are also welded with the vertical edges of the transverse angle steel 22; the left and right ends of the transverse angle steel 22 are respectively fixed to the left and right side plates of the housing 20, and the top ends of the vertical edges are welded to the top plate of the housing 20.

In summary, the mounting method of the eight conductive filter cells 50 in the other row of conductive filter cells is slightly different from the mounting method of the nine conductive filter cells 50 in the one row of conductive filter cells; however, the structure of each conductive filter cell 50 in the two rows of conductive filter cells is the same. The structure of the conductive filter cell 50 will be described in detail below.

Each conductive filter cell 50 comprises a plurality of metal wire meshes 51 which are connected up and down and provided with metal sealing edges at the edges; the wire mesh 51 is formed by weaving or welding a plurality of stainless steel wires or a plurality of manganese-nickel alloy fibers. However, each piece of conductive filter cell 50 may instead comprise a wire mesh (I) having a large area and having metal seals fixed to its edges. Of course, each piece of wire-net 51 and the wire-net (I) may be made by splicing a plurality of pieces of wire-nets having a relatively small area.

The edges of each wire mesh 51 of the conductive filter cell 50 are all fixedly provided with metal sealing edges, so that the rigidity of the conductive filter cell 50 can be obviously enhanced, and the conductive filter cell 50 is convenient to mount and assemble. Although the metal edge seal causes the distance between the conductive filter cell 50 and the adjacent auxiliary electrode tube 32 to be slightly smaller, the metal edge seal has little or no adverse effect on the breakdown voltage and the operating voltage of the two high-efficiency electric fields because when a relatively independent small electric field is formed by the conductive filter cell 50 and the adjacent auxiliary electrode tube 32, the small distance between the conductive filter cell 50 and the adjacent auxiliary electrode tube only slightly reduces the breakdown voltage of the relatively independent small electric field, but does not lower than or is slightly lower than the breakdown voltage of a relatively independent large electric field formed by the first anode plate row 40 and the first cathode wire group 30.

The wire mesh 51 has an opening ratio of 30 to 80% and an equivalent diameter of mesh of 1 to 5mm; the wire net 51 has a U-shaped cross section. The upper end edge and the lower end edge of the wire mesh 51 are respectively and fixedly provided with a horizontally arranged high-position groove-shaped metal sealing edge (I) and a low-position groove-shaped metal sealing edge (I) 52 which is structurally symmetrical with the high-position groove-shaped metal sealing edge, and the left front side edge and the right front side edge of the wire mesh are respectively and fixedly provided with a left front side strip-shaped metal sealing edge (I) and a right front side strip-shaped metal sealing edge (I) 53 which is structurally symmetrical with the left front side edge and the right front side edge of the wire mesh; the upper end of the left front side strip-shaped metal seal edge (I) and the upper end of the right front side strip-shaped metal seal edge (I) 53 are in butt welding with the left front end and the right front end of the high groove-shaped metal seal edge (I) respectively, the lower ends of the left front end and the right front end of the low groove-shaped metal seal edge (I) 52 are in butt welding with each other, and all butt welding seams are flush with the surface.

In each conductive filter cell 50, each high groove-shaped metal seal edge (one) is welded with a low groove-shaped metal seal edge (one) 52 which is vertically adjacent to the high groove-shaped metal seal edge (one) through butt welding to enable the surfaces of butt weld joints to be flush, and each left front side strip-shaped metal seal edge (one) and each right front side strip-shaped metal seal edge (one) 53 are respectively welded with another left front side strip-shaped metal seal edge (one) and another right front side strip-shaped metal seal edge (one) 53 which are vertically adjacent to the high groove-shaped metal seal edge (one) through butt welding to enable the surfaces of the butt weld joints to be flush. In addition, the rear ends of the high-position groove-shaped metal sealing edges (I) and the rear ends of the low-position groove-shaped metal sealing edges (I) 52 of each conductive filter tank 50 are fixedly connected with the rear windproof groove of the corresponding auxiliary dust collecting plate 60 through a plurality of bolts 62, a plurality of nuts, a plurality of conical spring washers and a plurality of large washers respectively. All the bolts 62 and nuts are spot welded firmly after being tightened, so that the problem that the connection is loosened and even the nuts fall off is avoided.

Two transverse connecting rods 54 parallel to the air inlet of each conductive filter cell 50 are horizontally arranged in each conductive filter cell 50, wherein one transverse connecting rod 54 is close to the upper edge of the air inlet, and the other transverse connecting rod 54 is close to the lower edge of the air inlet; the left and right ends of each transverse connecting rod 54 are respectively welded with the corresponding left front side strip-shaped metal sealing edge (I) and the corresponding right front side strip-shaped metal sealing edge (I) 53.

The cross section of the wire net 51 may instead be trapezoidal in groove (or V-shaped). The angle alpha between the left part and the right part of the metal wire mesh with the trapezoidal groove in the cross section is 25 degrees, and can be changed into a certain value (such as 45 degrees) between 20 degrees and 50 degrees, so as to improve the collection efficiency of the left part and the right part on the charged dust entering the conductive filter cell. Like the wire mesh 51 with the U-shaped cross section, the upper end edge and the lower end edge of the wire mesh with the trapezoidal groove (or V-shaped) cross section are respectively and fixedly provided with a horizontally arranged high-position groove-shaped metal seal edge (ii) and a low-position groove-shaped metal seal edge (ii) which is structurally symmetrical with the high-position groove-shaped metal seal edge (ii), and the left front side edge and the right front side edge are respectively and fixedly provided with a left front side strip-shaped metal seal edge (ii) and a right front side strip-shaped metal seal edge (ii) which is structurally symmetrical with the left front side strip-shaped metal seal edge (ii), as shown in fig. 5; moreover, the connection modes of the upper groove-shaped metal seal edge (two) and the lower groove-shaped metal seal edge (two) and the left front side strip-shaped metal seal edge (two) (or the right front side strip-shaped metal seal edge (two)) are basically the same as the connection modes of the upper groove-shaped metal seal edge (one) and the lower groove-shaped metal seal edge (one) 52 of the wire mesh 51 and the left front side strip-shaped metal seal edge (one) (or the right front side strip-shaped metal seal edge (one) 53). In particular, in the metal wire mesh, a front end lap plate is respectively added at the welding part of the left front side strip-shaped metal edge sealing (II) and the right front side strip-shaped metal edge sealing (II) with the high-position groove-shaped metal edge sealing (II) (note that the height of the front end lap plate is slightly less than that of the high-position groove-shaped metal edge sealing (II)), and a front end lap plate is also respectively added at the welding part of the left front side strip-shaped metal edge sealing (II) and the right front side strip-shaped metal edge sealing (II) with the low-position groove-shaped metal edge sealing (II) and is welded together.

In each conductive filter cell provided with a metal wire mesh with a trapezoidal groove (or V-shaped) cross section, each high-position groove-shaped metal seal edge (II) is welded with one low-position groove-shaped metal seal edge (II) which is adjacent to the high-position groove-shaped metal seal edge up and down, a plurality of horizontally-arranged groove-shaped lap plates (note: the height of the high-position groove-shaped metal seal edge (II) is about 1.6 times of the height of the high-position groove-shaped metal seal edge) are additionally arranged in the conductive filter cell, then lap welding is carried out, and each front-end lap plate is butt-welded with the other front-end lap plate which is adjacent to the high-position groove-shaped metal seal edge (II) up and down. It should be noted that the left and right front ends of each of the strap members are butt-welded to a respective one of the strap members located in front of the strap member.

In order to timely perform rapping dust removal on the cathode and anode systems of each high-efficiency electric field, one row of conductive filter cells and the other row of conductive filter cells, each high-efficiency electric field is also provided with a set of anode side rapping dust removal device comprising an anode rapping rotating shaft 45 and nine anode overall hammers 44, a set of cathode side rapping dust removal device (note: shown in the attached figure) comprising eight cathode overall hammers and positioned above the anode side rapping dust removal device, and a set of filter cell side rapping dust removal device specially configured for the other row of conductive filter cells, wherein the filter cell side rapping dust removal device comprises a filter cell rapping rotating shaft and eight filter cell overall hammers 57.

The volumes of the anode monoblock hammers 44 and said cathode monoblock hammers are both significantly larger than the volume of the filter-tank monoblock hammers 57, and the projected areas of the anode monoblock hammers 44 and said cathode monoblock hammers on the plane perpendicular to the filter-tank rapping rotation axis are both significantly larger than the projected area of the filter-tank monoblock hammers 57 on the plane perpendicular to the filter-tank rapping rotation axis, so as to avoid that too large rapping acceleration is generated on the conductive filter tank 50 when the filter-tank monoblock hammers 57 hit the filter-tank rapping anvils 58.

By properly striking each anode rapping anvil by each anode integrated hammer 44 in the anode side rapping ash removal device, most of the dust accumulated on the first anode plate row 40 and the conductive filter cell 50 and the auxiliary dust collecting plate 60 arranged right behind the first anode plate row can be simultaneously removed. And the rapping anvils 58 of each filter cell are timely struck by the integral hammers 57 of each filter cell in the ash removal device by rapping the side parts of the filter cells, so that most of dust accumulated on each conductive filter cell 50 in the other row of conductive filter cells can be removed. Moreover, after the other row of conductive filter cells is rapped to perform ash removal, the eight porous blowing ash removal pipes 56 can be used for correspondingly blowing ash removal to the eight conductive filter cells 50 one by one, so as to remove the dust remained on the eight conductive filter cells 50 more cleanly.

Second embodiment

As shown in fig. 6-11, the utility model provides a new-type electrically conductive filter cell electrostatic precipitator, including the smoke box 10' that admits air, casing 20', first high-efficient electric field, the high-efficient electric field of second and the smoke box 70' of giving vent to anger, wherein first high-efficient electric field and the high-efficient electric field of second are equipped with high voltage power supply unit 81', high voltage power supply unit 82' respectively.

The first high-efficiency electric field and the second high-efficiency electric field both comprise eight first cathode line groups 30 'and nine first anode plate rows 40' which are arranged in parallel and alternately, and a row of auxiliary dust collecting plates and a row of conductive filter tanks are arranged behind the nine first anode plate rows 40', wherein the distance B between any two first cathode line groups 30' which are adjacent left and right is 450mm. In addition, the second efficient electric field further comprises another row of conductive filter cells arranged behind the one row of conductive filter cells. Each conductive filter cell 50 'in each row of conductive filter cells comprises a plurality of porous foam metal plates 51' which are connected up and down and provided with metal sealing edges at the edges; moreover, an auxiliary electrode tube 32' connected to the first cathode line set 30' located right in front of the auxiliary electrode tube is disposed between any two left and right adjacent conductive filter cells 50' in the row of conductive filter cells-naturally, each high-efficiency electric field does not need to be specially provided with a set of high-voltage power supply device for the auxiliary electrode tube 32' and the conductive filter cell 50'.

Each first anode plate row 40 'comprises eight first anode plates 41', and a plurality of limiting clamps 43 'are arranged between any two front and back adjacent first anode plates 41', wherein each limiting clamp 43 'is fixed on the wind-proof ditch of one first anode plate 41' through two bolts, two nuts and two washers respectively. The upper end of each first anode plate 41' is fixedly connected with a first hanging plate (note: not shown in the figure) positioned right above the first anode plate through two bolts, two nuts, two conical spring washers and two large washers, each first hanging plate is fixedly connected with a hanging steel plate (note: not shown in the figure) of a first anode plate hanging beam, and the lower end of each first anode plate 41' is fixedly connected with a first fixing plate (note: not shown in the figure) of the first anode rapping rod 42' positioned right below the first anode plate through two bolts, two nuts, two conical spring washers and two large washers. All the bolts and the nuts are firmly welded by spot welding after being screwed so as to avoid the problems of loose connection and even nut falling off.

The row of conductive filter cells comprises nine conductive filter cells 50'; the air inlet of each conductive filter cell 50' faces the air outlet of the first anode plate 41' directly in front of and connected to the conductive filter cell, so as to effectively trap the charged dust escaping along the surface of the first anode plate 41' behind the high-efficiency electric field. The metal sealing edge fixedly arranged at the edge of the upper end behind the conductive filter cell 50', namely the rear end of the high-position groove-shaped metal sealing edge (I) positioned at the top end of the conductive filter cell is fixedly connected (injection: preferably welded) with a filter cell hanging plate 59' with a round hole in the middle, wherein the round hole is positioned at the upper rear part of the conductive filter cell 50'; the installation direction of the filter tank hanging plate 59 'is parallel to the installation direction of the first anode plate 41'; the conductive filter cell 50 'is suspended on a pair of filter cell lifting lugs 21' fixedly mounted on the top plate of the shell 20 'through a filter cell hanging plate 59', a bolt, a nut and a gasket connected with the conductive filter cell 50', wherein the two filter cell lifting lugs 21' are respectively arranged on the left side and the right side of the filter cell hanging plate 59', and a transverse kidney-shaped hole is respectively arranged in the middle of each filter cell lifting lug 21' so as to facilitate the bolt to move, thereby obviously improving the vibration acceleration of the conductive filter cell 50 'and the first anode plate row 40' (note: when the conductive filter cell 50 'and the first anode plate row 40' are vibrated to clean dust). It should be noted that all the bolts and nuts must be spot welded firmly after being tightened, so as not to cause the problems of loose connection and even nut falling.

A first cathode line group 30 'including sixteen first cathode lines 31' is disposed between any two first anode plate rows 40 'adjacent to each other left and right of the nine first anode plate rows 40'.

Between any two adjacent conductive filter cells 50 'in the nine conductive filter cells 50', an auxiliary electrode tube 32 'connected to the first cathode line group 30' located right in front thereof is disposed — so that negative high voltage is applied to the first cathode line group 30 'and the auxiliary electrode tube 32' at the same time. The auxiliary electrode tube 32' has a smooth outer wall with a wall thickness of 2.8mm and an equivalent diameter equal to 30mm.

The first cathode wire 31' is a CS10B needle-punched wire, the diameter of the main body (note: round steel) thereof is equal to 8mm, and a plurality of wire needles are mounted on the main body thereof. Of course, the first cathode line 31' may be changed to other fishbone needle line or VH line, or sawtooth barbed line or tubular barbed line, and the second high-efficiency electric field may be star-shaped line or hemp line, or CW09A wave line.

The auxiliary electrode tube 32' has an elliptical cross-section (note: the cross-section may be changed to be a nearly circular shape, and the portion of the nearly circular shape having a larger curvature is toward the inlet smoke box 10' or the outlet smoke box 70 '), and the major axis of the elliptical cross-section is located on the center line of symmetry of the first cathode line group 30', and the outer wall of the auxiliary electrode tube 32' is relatively smooth, and the first cathode line 31' is provided with a plurality of wire needles, and the equivalent diameter thereof is equal to 30mm, which is significantly larger than the main diameter of the first cathode line 31', so that the discharge performance of the auxiliary electrode tube 32' is significantly weaker than that of the first cathode line 31 '.

Therefore, although the distance between the auxiliary electrode tube 32 'and the two conductive filter cells 50' located at the left and right sides thereof is slightly smaller than the distance between the sixteen first cathode lines 31 'and the two first anode plate rows 40' located at the left and right sides thereof, the breakdown voltage and the operating voltage of the two high-efficiency electric fields are not reduced by disposing an auxiliary electrode tube 32 'between any two left and right adjacent conductive filter cells 50'. Naturally, this auxiliary electrode tube 32 'does not reduce the efficiency of the first anode plate row 40' and the two electrically conductive filter cells 50 'located on the left and right sides thereof for collecting the charged dust in the air flow, nor does it reduce the efficiency of the electrically conductive filter cells 50' located directly behind and disposed in the second high-efficiency electric field for collecting the charged dust in the air flow.

In the first high-efficiency field, the auxiliary electrode tube 32 'is fixedly connected to a first cathode frame 33' of the first cathode line group 30 'directly in front of the auxiliary electrode tube by means of pieces of horizontal connecting rods 34' (i.e., solid) having good electrical conductivity. For example, each horizontal connecting rod 34' is formed with a semicircular recess at its front and rear ends, and the front and rear ends are welded to the rear side of the first cathode frame 33' and the auxiliary electrode tube 32', respectively — naturally, the auxiliary electrode tube 32' is also electrically connected to a first cathode line group 30' located right in front thereof. It should be noted that, if the first cathode frame 33 'and the auxiliary electrode tube 32' are connected by a plurality of horizontal connecting tubes as in the first embodiment, the distance between the horizontal connecting tubes and the two first anode plate rows 40 located at the left and right sides thereof is slightly smaller than the distance between the horizontal connecting rods 34 'and the two first anode plate rows 40' located at the left and right sides thereof — obviously, it is relatively unfavorable for increasing the breakdown voltage and the operating voltage of the first high-efficiency electric field. This method of connecting the auxiliary electrode tube 32' to a first cathode frame 33' of a first cathode line set 30' installed directly in front of it can be applied to both a new electric precipitator project and a retrofit old electric precipitator project.

Thus, the auxiliary electrode tube 32' is fixedly connected to the first cathode frame 33', which not only saves a suspension device and a rapping dust-cleaning device special for the auxiliary electrode tube 32', thereby further reducing the manufacturing cost of the electric dust collector, but also can ensure that the auxiliary electrode tube 32' is more firmly and fixedly connected to a cathode system of the electric dust collector, thereby remarkably reducing the probability that the auxiliary electrode tube 32' is broken (or called broken) and causes the short circuit of the high-efficiency electric field; moreover, when the cathode system of the electric dust collector is rapped to remove ash, the auxiliary electrode tube 32' can obtain a proper rapping acceleration and obtain a good ash removal effect like sixteen first cathode wires 31' of the first cathode wire group 30' positioned right in front of the auxiliary electrode tube. In addition, it is not necessary to specially provide the auxiliary electrode tube 32 'and the conductive filter cell 50' with a high voltage power supply.

It should be noted that, in the second high-efficiency electric field, the auxiliary electrode tube 32 'is fixedly mounted on the same first cathode frame 33 "(note: its width is significantly larger than the width of the first cathode frame 33' in the first high-efficiency electric field) together with the sixteen first cathode wires 31 'of the first cathode wire group 30' located right in front of the auxiliary electrode tube, so as to be conveniently mounted on the construction site; moreover, a suspension device and a rapping dust-cleaning device special for the auxiliary electrode tube 32' can be saved, thereby further reducing the manufacturing cost of the electric dust collector. In addition, it is not necessary to specially provide the auxiliary electrode tube 32 'and the conductive filter cell 50' with a high voltage power supply. In addition, the auxiliary electrode tubes 32' installed in the second high-efficiency electric field have lower probability of breaking (or breaking) and causing short circuit of the high-efficiency electric field than those auxiliary electrode tubes 32' installed in the first high-efficiency electric field, and the auxiliary electrode tubes 32' obtain higher rapping acceleration and achieve better ash removal effect. Of course, the method of fixedly mounting the auxiliary electrode tube 32' and the plurality of first cathode wires 31' of the first cathode wire group 30' directly in front of the auxiliary electrode tube on the same first cathode frame 33 ″ can be applied to both a new electric precipitator project and an old electric precipitator project.

In the second high-efficiency electric field, another purposely arranged row of the conductive filter cells comprises eight conductive filter cells 50', wherein the air inlet of each conductive filter cell 50' is parallel to the air inlet of any conductive filter cell 50 'in the row of the conductive filter cells and faces to the first cathode frame 33 ″ positioned right in front of the conductive filter cell, so as to effectively trap the charged dust escaping from the passage between any two left and right adjacent conductive filter cells 50' in the row of the conductive filter cells along with the air flow. Of course, the distance between each conductive filter cell 50 'of the other row of conductive filter cells and the first cathode frame 33 ″ located right in front thereof should be slightly greater than or equal to the distance between the auxiliary electrode tube 32' and the two conductive filter cells 50 'located on the left and right sides of the auxiliary electrode tube 32'.

Because an auxiliary electrode tube 32 'connected with the first cathode wire set 30' positioned right in front of any two left and right adjacent conductive filter cells 50 'in the row of conductive filter cells is arranged between any two left and right adjacent conductive filter cells 50', the charged dust which does not escape along the surface of the first anode plate 41 'at the rear part of the high-efficiency electric field, the dust which escapes along with the air flow from the pores of the porous foam metal plate 51' of the conductive filter cell 50', and a part of secondary raised dust generated when the row of conductive filter cells is rapped for dust removal can continue to be charged or start to be charged after entering the channel between any two left and right adjacent conductive filter cells 50' in the row of conductive filter cells; meanwhile, the negatively and positively charged dusts migrate toward the corresponding conductive filter cell 50 'and the auxiliary electrode tube 32' respectively under the action of the electric field force, and a part of the negatively and positively charged dusts will be deposited on the side portion of the corresponding conductive filter cell 50 '(note: the outer side including a part of the metal sealing edge thereof) and the surface of the corresponding auxiliary electrode tube 32', respectively.

In addition, the auxiliary electrode tubes 32 'can also be increased remarkably, and the electrostatic adsorption effect of the other row of conductive filter cells on the charged dust can be enhanced remarkably as the airflow escapes from the channel between any two adjacent left and right conductive filter cells 50' in the row of conductive filter cells and then enters the charged amount of the charged dust in the other row of conductive filter cells along with the airflow.

In conclusion, in any of the above high-efficiency electric fields, the arrangement of the plurality of auxiliary electrode tubes 32' can significantly reduce the dust concentration of the outlet flue gas of the corresponding high-efficiency electric field, thereby significantly improving the dust removal efficiency of the novel electric precipitator with conductive filter troughs.

The one row of auxiliary dust collecting plates has nine auxiliary dust collecting plates 60'. The rear wind-proof groove of the last first anode plate 41 'in each first anode plate row 40' is fixedly connected with the front wind-proof groove of an auxiliary dust collecting plate 60 'vertically arranged right behind the rear wind-proof groove through a plurality of bolts 62', a plurality of nuts and a plurality of washers; the arrangement direction of the auxiliary dust collecting plate 60 'is parallel to the arrangement direction of the first anode plate 41'; the rear windproof channel of the auxiliary dust collecting plate 60 'is fixedly connected with the rear ends of a plurality of high-position groove-shaped metal sealing edges (I) and/or the rear ends of a plurality of low-position groove-shaped metal sealing edges (I) 52' of the conductive filter groove 50 'positioned right behind the windproof channel at the front side of the auxiliary dust collecting plate through a plurality of bolts 62', a plurality of nuts, a plurality of conical spring washers and a plurality of large washers. All of the bolts 62' and nuts are spot welded together after being tightened to avoid the problems of loose connections and even nut falling.

The lower end of the auxiliary dust collecting plate 60 'is connected with an auxiliary fixing plate 61' through two bolts, two nuts, two conical spring washers and two large washers (note: not shown in the figure), and all the bolts and the nuts are firmly welded by spot welding after being screwed so as to avoid the problems of loose connection and even nut falling; two bolt holes (note: not shown in the figure) are formed in the upper portion of the auxiliary fixing plate 61'; the lower end of the auxiliary fixing plate 61 'is welded on the auxiliary dowel bar 63'; the front end of the auxiliary dowel bar 63' is welded with the rear end of the dowel bar 42' of the rapping bar of the first anode plate row 40 '.

The auxiliary dust collecting plate 60' is made of 1Cr18Ni9; the thickness of the auxiliary dust collecting plate 60' is equal to 2.0mm; the width of the wind-proof groove at both sides of the auxiliary dust-collecting plate 60 'is close to the width of the wind-proof groove at both sides of the first anode plate 41' so that the auxiliary dust-collecting plate 60 'is fixedly connected with the first anode plate 41'.

Obviously, the nine auxiliary dust collecting plates 60' can also capture a part of the charged dust which escapes along the surface of the first anode plate 41' at the rear of the high-efficiency electric field and then enters the conductive filter cell 50' along with the airflow. In addition, by means of the nine auxiliary dust collecting plates 60', nine auxiliary fixing plates 61' and nine auxiliary force transmission rods 63', and the force transmission rods 42' of the rapping rods of the first anode plate row 40', the conductive filter cells 50' in the row of conductive filter cells are respectively fixed and connected with the first anode plate row 40 'positioned right in front of the conductive filter cells, so that the stability of the conductive filter cells 50' is enhanced, and the conductive filter cells 50 'can obtain a proper large rapping acceleration when the row of first anode plate row 41' positioned right in front of the conductive filter cells is rapped for ash removal.

Of course, a vertically arranged multi-hole blowing dust pipe can be added in each conductive filter cell 50' in the other row of conductive filter cells according to the first embodiment. In addition, a vertically arranged porous blowing dust cleaning pipe can be arranged in each conductive filter cell 50' in the row of conductive filter cells, and each porous blowing dust cleaning pipe is positioned right behind a corresponding first anode plate row 40', so that nine auxiliary dust collecting plates 60' connected with the first anode plate rows 40' cannot be arranged right behind the nine first anode plate rows 40' in a one-to-one correspondence manner. The multi-hole blowing dust removal pipe is cylindrical, and a plurality of areas provided with dust blowing holes are arranged at equal intervals along the height direction of the multi-hole blowing dust removal pipe; a plurality of dust blowing holes are symmetrically arranged in the left and right of each area provided with the dust blowing holes; the air outlets of the plurality of dust blowing holes are all towards the corresponding piece of conductive filter tank 50'.

The rear end of each conductive filter cell 50' in the other row of conductive filter cells is fixedly connected with a longitudinal connecting piece 55' — preferably, the rear ends of a plurality of high-level groove-shaped metal sealing edges (one) and a plurality of low-level groove-shaped metal sealing edges (one) 52' of each conductive filter cell 50' are welded with the longitudinal connecting piece 55 '; the bottom end of each longitudinal connecting member 55 'is also welded with a cylindrical filter tank rapping anvil 58'. In addition, a transverse angle steel 22 'parallel to the air inlet is arranged behind the eight conductive filter cells 50' of the other row of conductive filter cells; the upper ends of the eight longitudinal connectors 55 'are also welded with the vertical edges of the transverse angle steels 22'; the left and right ends of the horizontal angle steel 22' are respectively fixed with the left and right side plates of the shell 20', and the top ends of the vertical edges are welded with the top plate of the shell 20 '.

In summary, the mounting method of the eight conductive filter cells 50 'of the other row of conductive filter cells is slightly different from the mounting method of the nine conductive filter cells 50' of the one row of conductive filter cells; however, the structure of each conductive filter cell 50' in the two rows of conductive filter cells is the same. The structure of the conductive filter cell 50' will be described in detail below.

Each conductive filter cell 50 'includes a plurality of metal foam plates 51' with metal sealing edges fixedly disposed on the edges thereof. However, each conductive filter cell 50' may instead comprise a porous metal foam sheet (I) having a large surface area and having edges both fixedly provided with a metal edge seal. Of course, each expanded metal foam sheet 51' and the expanded metal foam sheet (I) may be made by joining a plurality of expanded metal foam sheets having a relatively small surface area.

The edges of each porous foam metal plate 51 'of the conductive filter cell 50' are all fixedly provided with metal sealing edges, so that the rigidity of the conductive filter cell 50 'can be obviously enhanced, and the conductive filter cell 50' is convenient to mount and assemble. Although the metal edge seal causes the distance between the conductive filter cell 50 'and the adjacent auxiliary electrode tube 32' to be slightly smaller, the metal edge seal has little or no adverse effect on the breakdown voltage and the operating voltage of the two high-efficiency electric fields because when a relatively independent small electric field is formed by the conductive filter cell 50 'and the adjacent auxiliary electrode tube 32', etc., the slightly smaller distance between the two high-efficiency electric field and the adjacent auxiliary electrode tube only slightly reduces the breakdown voltage of the relatively independent small electric field, but does not lower the breakdown voltage of a relatively independent large electric field formed by the first anode plate row 40 'and the first cathode wire group 30', etc., or only slightly lower the breakdown voltage of the relatively independent large electric field than the latter.

The expanded metal 51' is made of at least one of the following materials: iron, cobalt, nickel, copper, zinc; the thickness of the porous metal foam sheet 51' is between 10mm and 30mm, and the porosity thereof is between 50% and 90%; the cross section of the porous foam metal plate 51' is V-shaped; the angle β between the left and right portions of the expanded metal sheet 51 'is 25 °, but may be changed to a certain value (e.g., 35 °) between 20 ° and 50 ° to improve the efficiency of the left and right portions in collecting the charged dust entering the conductive filter 50', see fig. 9.

The upper end edge and the lower end edge of the porous foam metal plate 51' are respectively and fixedly provided with a horizontally arranged high-position groove-shaped metal sealing edge (I) and a low-position groove-shaped metal sealing edge (I) 52' which is structurally symmetrical with the high-position groove-shaped metal sealing edge, and the left front side edge and the right front side edge of the porous foam metal plate are respectively and fixedly provided with a left front side strip-shaped metal sealing edge (I) and a right front side strip-shaped metal sealing edge (I) 53' which is structurally symmetrical with the left front side strip-shaped metal sealing edge and the right front side strip-shaped metal sealing edge (I); the upper end of the left front side strip-shaped metal seal edge (I) and the upper end of the right front side strip-shaped metal seal edge (I) 53 'are respectively in butt welding with the left front end and the right front end of the high groove-shaped metal seal edge (I), the lower ends of the left front side strip-shaped metal seal edge (I) and the right front end of the low groove-shaped metal seal edge (I) 52' are respectively in butt welding, and all butt welding seams are flush with the surface.

In each conductive filter cell 50', each high-level groove-shaped metal seal edge (one) is welded with a low-level groove-shaped metal seal edge (one) 52' vertically adjacent to the high-level groove-shaped metal seal edge (one), the surfaces of butt weld joints are leveled through butt welding, and each left front side strip-shaped metal seal edge (one) and each right front side strip-shaped metal seal edge (one) 53' are respectively welded with another left front side strip-shaped metal seal edge (one) and another right front side strip-shaped metal seal edge (one) 53' vertically adjacent to the left front side strip-shaped metal seal edge (one) and the other right front side strip-shaped metal seal edge (one) 53', the surfaces of the butt weld joints are leveled through butt welding. Further, it should be noted that: in the row of conductive filter cells, the rear end of the high-position groove-shaped metal sealing edge (I) and the rear end of the low-position groove-shaped metal sealing edge (I) 52 'of each conductive filter cell 50' are fixedly connected with the rear wind-prevention groove of the corresponding auxiliary dust collection plate 60 'through a plurality of bolts 62', a plurality of nuts, a plurality of conical spring washers and a plurality of large washers respectively. All the bolts 62' and nuts are spot-welded firmly after being tightened, so that the problem that the connection is loosened and even the nuts fall off is avoided.

Two transverse connecting rods 54 'parallel to the air inlet of each conductive filter cell 50' are horizontally arranged, wherein one transverse connecting rod 54 'is close to the upper edge of the air inlet, and the other transverse connecting rod 54' is close to the lower edge of the air inlet; the left and right ends of each transverse connecting rod 54 'are respectively welded with a corresponding left front side strip-shaped metal sealing edge (I) and a corresponding right front side strip-shaped metal sealing edge (I) 53'.

The cross section of the expanded metal 51' may instead be trapezoidal (or U-shaped). The angle gamma between the left part and the right part of the porous foam metal plate with the trapezoidal groove in the cross section is 25 degrees, and can be changed into a certain value (such as 45 degrees) between 20 degrees and 50 degrees, so that the collection efficiency of the left part and the right part of the porous foam metal plate on charged dust entering the conductive filter cell is improved. Like the porous metal foam plate 51' having a V-shaped cross section, the upper end edge and the lower end edge of the porous metal foam plate having a trapezoidal groove (or U-shaped cross section) are respectively and fixedly provided with a horizontally arranged high-position groove-shaped metal seal edge (ii) and a low-position groove-shaped metal seal edge (ii) having a structural symmetry with the same, and the left front side edge and the right front side edge thereof are respectively and fixedly provided with a left front side strip-shaped metal seal edge (ii) and a right front side strip-shaped metal seal edge (ii) having a structural symmetry with the same, see fig. 11; moreover, the connection modes of the upper groove-shaped metal seal edge (two) and the lower groove-shaped metal seal edge (two) and the left front side strip-shaped metal seal edge (two) (or the right front side strip-shaped metal seal edge (two)) are the same as the connection modes of the upper groove-shaped metal seal edge (one) and the lower groove-shaped metal seal edge (one) 52' of the porous foam metal plate 51' and the left front side strip-shaped metal seal edge (one) (or the right front side strip-shaped metal seal edge (one) 53 ').

In each conductive filter tank provided with a porous foam metal plate with a trapezoidal groove (or V-shaped) cross section, each high-position groove-shaped metal seal edge (II) is welded with one low-position groove-shaped metal seal edge (II) which is vertically adjacent to the high-position groove-shaped metal seal edge (II), the surfaces of butt welding seams are leveled through butt welding, and each left front side strip-shaped metal seal edge (II) and each right front side strip-shaped metal seal edge (II) are respectively welded with the other left front side strip-shaped metal seal edge (II) and the other right front side strip-shaped metal seal edge (II) which are vertically adjacent to the left front side strip-shaped metal seal edge (II) and the other right front side strip-shaped metal seal edge (II), and the surfaces of the butt welding seams are leveled through butt welding.

In order to timely perform rapping dust removal on the cathode and anode systems of each high-efficiency electric field, one row of conductive filter cells and the other row of conductive filter cells specially arranged in the second high-efficiency electric field, each high-efficiency electric field is also provided with a set of anode side rapping dust removal device comprising an anode rapping rotating shaft 45 'and nine anode integral hammers 44', and a set of cathode side rapping dust removal device which is positioned above the anode side rapping dust removal device and comprises eight cathode integral hammers (note: in the attached figure); in addition, in the second high-efficiency electric field, a set of filter tank side part rapping dust cleaning device is specially equipped for the other row of conductive filter tanks. The filter tank side rapping dust-cleaning device comprises a filter tank rapping rotating shaft and eight filter tank integral hammers 57'.

The volumes of the anode monoblock 44' and said cathode monoblock are both significantly larger than the volume of the filter cell monoblock 57', and the projected areas of the anode monoblock 44' and said cathode monoblock on the plane perpendicular to the axis of rotation of the filter cell rapping are both significantly larger than the projected areas of the filter cell monoblock 57' on the plane perpendicular to the axis of rotation of the filter cell rapping, in order to avoid too large rapping accelerations on the conductive filter cell 50' when the filter cell monoblock 57' strikes the filter cell rapping anvil 58'.

By properly striking each anode rapping anvil by each anode integrated hammer 44 'in the anode side rapping ash removal device, most of the dust deposited on the first anode plate row 40' and the conductive filter cell 50 'and the auxiliary dust collecting plate 60' arranged right behind the first anode plate row can be simultaneously removed. And the rapping anvils 58' of all the filter cells are timely struck by the integral hammers 57' of all the filter cells in the ash removal device through the side part of the filter cells, so that most of dust accumulated on all the conductive filter cells 50' in the other row of conductive filter cells can be removed.

Finally, supplementary explanation is given for six points:

firstly, if the inlet flue gas dust concentration of the first high-efficient electric field in one embodiment is higher, we can add a plurality of ordinary electric fields and/or a plurality of high-efficient electric fields on the two high-efficient electric field upper reaches after properly prolonging the length of the shell thereof, so that the outlet flue gas dust concentration of the electric dust remover meets the strict environmental protection requirement. The common electric field comprises a plurality of second cathode line groups and a plurality of second anode plate rows, and the second cathode line groups are respectively arranged in the electric field channels in a one-to-one correspondence mode.

Secondly, if the inlet flue gas of the first high-efficiency electric field in one embodiment has a low dust concentration, one or two of the conductive filter cells in the other row of the high-efficiency electric field can be omitted, and the length of the shell can be shortened properly.

Thirdly, the principle and structure of the conventional method known to those skilled in the art adopted in the present invention can be known to those skilled in the art through relevant technical books or through conventional experimental methods, such as: first anode plate row, first negative pole line and negative and positive poles lateral part in the high-efficient electric field shake and beat ash removal device's structure and mounting method, the structure and the mounting method of the negative and positive pole system of ordinary electric field are prior art, the utility model discloses no longer give unnecessary details.

Fourth, directional terms mentioned in the embodiments of the present invention, such as "upper", "lower", "front", "rear", "left", "right", etc., refer to the direction of the drawings only, and are not intended to limit the scope of the present invention. Further, the shapes and sizes of the respective components in the drawings do not reflect actual sizes and proportions, but merely illustrate the contents of the respective embodiments of the present invention.

The terms "connected," "connected," and "connected" are to be construed broadly and include, for example, fixed, removable, and integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Sixthly, the above-mentioned preferred embodiments further explain the purpose, technical scheme and beneficial effects of the present invention in detail. It should be understood that the above-mentioned embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiments, all according to the technical spirit of the present invention, still belong to the scope of the present invention.

Claims

1. A novel electric dust remover with a conductive filter tank comprises a shell and more than two high-efficiency electric fields; each high-efficiency electric field comprises a plurality of first cathode wire groups, a plurality of first anode plate rows and a row of air-permeable conductive filter cells arranged at the downstream of the first cathode wire groups; each first cathode line group comprises a plurality of first cathode lines; a plurality of first cathode wires of the first cathode wire set are arranged between any two left and right adjacent first anode plate rows of the plurality of first anode plate rows; the air inlet of every electrically conductive filter cell in a row of electrically conductive filter cells all gives vent to anger the end towards the first anode plate that is located its dead ahead, its characterized in that: each conductive filter cell in the row of conductive filter cells comprises one or a plurality of metal wire meshes or porous foam metal plates with metal edge seals fixedly arranged on the edges of the conductive filter cells which are connected up and down; one to three auxiliary electrode tubes connected with the first cathode wire set positioned right in front of the conductive filter cells are arranged between any two left and right adjacent conductive filter cells in the row of conductive filter cells; the outer wall of the auxiliary electrode tube is smooth, and the cross section of the auxiliary electrode tube is circular or nearly circular or oval; the discharge property of the auxiliary electrode tube is significantly weaker than that of the first cathode line.

2. The novel electric dust collector with the conductive filter tanks as claimed in claim 1, which is characterized in that: the one to three auxiliary electrode tubes are fixedly connected with one first cathode frame provided with one first cathode line group positioned right in front of the auxiliary electrode tubes, or are fixedly arranged on the same first cathode frame together with the one first cathode line group positioned right in front of the auxiliary electrode tubes.

3. The novel electric dust collector with the conductive filter tanks as claimed in claim 1, which is characterized in that: the thickness of the tube wall of the auxiliary electrode tube is between 1.0mm and 3.5 mm; the equivalent diameter of the auxiliary electrode tube is between 16mm and 48 mm.

4. The novel electric dust remover with the conductive filter tanks as claimed in claim 1, is characterized in that: two transverse connecting rods parallel to the air inlet of the conductive filter tank are horizontally arranged in the conductive filter tank, wherein one transverse connecting rod is close to the upper edge of the air inlet, and the other transverse connecting rod is close to the lower edge of the air inlet; the left end and the right end of the transverse connecting rod are respectively welded with the left side and the right side of the conductive filter tank.

5. The novel electric dust collector with the conductive filter tanks as claimed in claim 1, which is characterized in that: an auxiliary dust collecting plate connected with the first anode plate row or a cylindrical porous blowing dust cleaning pipe is vertically arranged at the downstream of each first anode plate row;

the arrangement direction of the auxiliary dust collecting plate is parallel to the arrangement direction of the first anode plate positioned right in front of the auxiliary dust collecting plate; the auxiliary dust collecting plate is made of 1Cr18Ni9; the thickness of the auxiliary dust collecting plate is between 1.5mm and 2.0mm; the width of the windproof grooves on the two sides of the auxiliary dust collecting plate is equal to or close to that of the windproof grooves on the two sides of the first anode plate;

the front wind-proof ditch of the auxiliary dust collecting plate is fixedly connected with the rear wind-proof ditch of the first anode plate, and the rear wind-proof ditch of the auxiliary dust collecting plate is fixedly connected with the rear end of the corresponding conductive filter tank;

6. The novel electric dust collector with the conductive filter tanks as claimed in claim 1, which is characterized in that: the upper end edge and the lower end edge of the metal wire mesh or the porous foam metal plate are respectively and fixedly provided with a horizontally arranged high-position groove-shaped metal sealing edge and a low-position groove-shaped metal sealing edge which is structurally symmetrical with the high-position groove-shaped metal sealing edge, and the left front side edge and the right front side edge of the metal wire mesh or the porous foam metal plate are respectively and fixedly provided with a left front side strip-shaped metal sealing edge and a right front side strip-shaped metal sealing edge which is structurally symmetrical with the left front side strip-shaped metal sealing edge and the right front side strip-shaped metal sealing edge; the upper end of the left front side strip-shaped metal seal edge and the upper end of the right front side strip-shaped metal seal edge are respectively welded with the left front end and the right front end of the high-position groove-shaped metal seal edge, and the lower ends of the left front side strip-shaped metal seal edge and the right front end of the low-position groove-shaped metal seal edge are respectively welded with the left front end and the right front end of the low-position groove-shaped metal seal edge; in each conductive filter tank, each high-position groove-shaped metal sealing edge is welded with one low-position groove-shaped metal sealing edge vertically adjacent to the high-position groove-shaped metal sealing edge.

7. The novel electric dust collector with the conductive filter tanks as claimed in claim 1, which is characterized in that: the cross section of the metal wire mesh or the porous foam metal plate is U-shaped or V-shaped or a trapezoidal groove.

8. The novel electric dust collector with the conductive filter tanks as claimed in claim 1, which is characterized in that: the wire mesh is formed by weaving or welding a plurality of stainless steel wires or a plurality of manganese-nickel alloy fibers;

9. The novel electric dust collector with the conductive filter tanks as claimed in any one of claims 1 to 8, which is characterized in that: in at least one high-efficiency electric field, another row of conductive filter cells are arranged behind the row of conductive filter cells; the air inlet of each conductive filter cell in the other row of conductive filter cells is parallel to the air inlet of any conductive filter cell in the row of conductive filter cells and faces the auxiliary electrode tube or the first cathode frame located right in front of the conductive filter cell.

10. The novel electric dust collector with the conductive filter tanks as claimed in any one of claims 1 to 8, which is characterized in that: a plurality of common electric fields are arranged at the upstream of the more than two high-efficiency electric fields; the common electric field comprises a plurality of second cathode line groups and a plurality of second anode plate rows, and the second cathode line groups are correspondingly arranged in the electric field channels one by one.