JP2010184166A - Electric dust collector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method of holding grounding electrode plates without breaking them even if they are made from a brittle material such as ceramic to allow them to stably exhibit the dust collection capability by placing them with a predetermined distance apart and by preventing the generation of a strain therein. <P>SOLUTION: There is provided an electric dust collector including a plurality of discharge electrodes 1 to which a high voltage is applied, a plurality of grounding electrode plates 2 each facing the corresponding discharge electrode 1 via air present therebetween, and a frame 3. The plurality of the discharge plates 1 and the plurality of the grounding electrode plates 2 are each alternately disposed. The frame 3 is constituted of a first frame 6 that holds a plurality of elastic members 4 and a plurality of abutment members 5, and of a second frame 7 that holds the first frame 6. The plurality of the grounding electrode plates 2 are disposed with a predetermined distance apart from each other and are each interposed between and held by the adjacent elastic member 4 and the abutment member 5. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an electric dust collector for collecting airborne particulate matter and cleaning the air.

  Conventionally, this type of electrostatic precipitator is known as follows, and will be described with reference to FIG. 5 (for example, see Patent Document 1).

  As shown in the figure, a plurality of dust collection electrodes 51 and discharge electrodes 52 are alternately arranged with a predetermined interval, and a high voltage is applied to the discharge electrodes 51 to cause corona discharge generated between the dust collection electrodes 51. The suspended particulate matter in the air is charged and collected by Coulomb force. In order to maintain a predetermined distance between the dust collection electrode 51 and the discharge electrode 52, the plurality of dust collection electrodes are supported by the first support rod 53, and the interval adjusting member 54 is arranged between the adjacent dust collection electrodes. The first support rod 53 is passed through the first support rod 53 and tightened with screws from both ends to be fixed at a predetermined interval. Similarly, the plurality of discharge electrodes 52 are supported by the second support rod 55, and are passed through the second support rod 55 so that the gap adjusting member 54 is between the adjacent discharge electrodes 52, and from both ends of the second support rod 55. It is fixed at a predetermined interval by tightening the screws. The first support bar 53 is not in contact with the discharge electrode 52, and the second support bar 55 is not in contact with the dust collection electrode 51.

In this way, the dust collection electrode and the discharge electrode are kept at a predetermined interval.
JP 2006-7112 A

  In such a conventional electrostatic precipitator, since the first support rod or the second support rod is tightened with screws from both ends, the tightening causes distortion in the dust collecting electrode plate or discharge electrode plate, and dust collection. There will be variations in the distance between the electrode plate and the discharge electrode plate. Further, when the dust collecting electrode plate is a brittle material such as ceramics, there is a possibility that the ceramics may be destroyed if the compressive force by tightening with screws is large. In addition, when fixing with screws from both sides of the second support rod supporting the discharge electrode plate, it is necessary to finely adjust the position of the screw so that the distance between the collector electrode plate and the discharge electrode plate is equal. In other words, even if the screw positions are slightly shifted, the intervals are not uniform. Furthermore, there is an error in the length of each component of the spacing adjusting member, and when a plurality of such components are stacked, a gap is generated in the spacing between the dust collecting electrode plate and the discharge electrode plate. As described above, when the predetermined interval cannot be maintained, abnormal spark discharge or short circuit occurs, and the dust collection performance of the electric dust collector cannot be exhibited stably.

  In addition, corona discharge is strong in places where the interval is narrow, and corona discharge is weak in places where the interval is wide, resulting in variations in the amount of charge on the suspended particulate matter, and dust collection performance deteriorates.

  In addition, in the conventional fixing method, when only one dust collecting electrode plate near the center is to be taken out during maintenance, etc., it is necessary to unscrew the screws one by one, which takes time and labor. .

  The present invention solves such a conventional problem, and it is possible to laminate a dust collecting electrode plate and a discharge electrode plate at a predetermined interval, the dust collecting performance is stable, and the dust collecting electrode plate An object of the present invention is to provide an electric dust collector that can be fixed without cracking even in the case of a material such as brittle ceramics, and at the same time, can easily take out a dust collecting electrode plate in a short time.

  In order to achieve the above object, an electrostatic precipitator according to the present invention comprises an electric discharge electrode to which a high voltage is applied, a grounding electrode plate facing the discharge electrode through air, and a frame. In the dust collector, a plurality of the discharge electrodes and the ground electrode plates are alternately arranged, and the frame body fixes a first frame to which an elastic member and a patch are fixed, and the first frame. It is constituted by a second frame, and the grounding electrode plate is fixed by being sandwiched between the elastic member and the abutting tool at a predetermined interval.

  By this means, it is possible to fix and laminate the ground electrode plate at a predetermined interval, and it can be fixed without causing distortion in the ground electrode plate, and further, the compression force due to extra tightening is not applied to the ground electrode plate, Even when the ground electrode plate is made of a material such as brittle ceramics, an electric dust collector can be obtained which can be fixed without cracking, and at the same time, one ground electrode plate can be easily attached or detached.

  Another means is that there are a plurality of fixing portions of the grounding electrode plate, a plurality of elastic members are brought into contact with one surface of the grounding electrode plate, and a plurality of pads are brought into contact with the other surface of the grounding electrode plate.

  By this means, the dust collecting electrode plate and the discharge electrode plate can be stacked with a predetermined interval, and the dust collecting performance can be stably exhibited.

  Another means is to fix a plurality of first frames on both sides of the second frame.

  By this means, the number of ground plates can be increased, and the dust collection performance can be improved.

  According to another means, at least one of the elastic member and the patch is made of metal.

  By this means, it becomes possible to flow a current during corona discharge using at least one of an elastic member and a patch, and it is not necessary to provide a separate current path, and the apparatus can be downsized.

  Another means is that the ground electrode plate is provided with a conductive layer having electrical conductivity and a resistance layer having an electrical resistance value on the surface of the ceramic substrate having electrical insulation, and the portion where the elastic member and the conductive layer are in contact with each other is The width of the conductive layer is wider than the width of the elastic member, and both sides of the elastic member are within the range of the conductive layer.

  By this means, even when the elastic member is not in parallel with the ground electrode plate but in contact with the slant, it can be reliably in contact with the conductive layer on the ceramic substrate, and corona discharge is generated and dust collection performance is stabilized. Can be demonstrated.

  According to another means, at least one of the elastic member and the contact tool is in contact with two adjacent grounding electrode plates at the same time.

  By this means, the number of parts used for the elastic member and the patch can be reduced to half, and the time required for attaching and detaching the elastic member and the patch during assembly or maintenance can be shortened.

  The other means is provided with a fixing hole for fixing the first frame, the elastic member, and the abutment tool to each other, and at least one of the fixing holes is a long hole.

  By this means, it becomes possible to fix the elastic member and the application tool at a predetermined position, and the ground electrode plate can be provided at a predetermined interval, and the dust collection performance can be stably exhibited.

  According to another means, a hole by burring is provided in the abutting tool in order to fix the abutting tool and the first frame.

  By this means, the abutment tool and the first frame can be easily fixed, the mounting / removing time can be shortened, and a nut is not required for fixing, so that the weight can be reduced. .

  In another means, at least one of the elastic member and the patch is fixed to the first frame by a rivet.

  By this means, even if the ground electrode plate vibrates due to the wind speed during operation of the electrostatic precipitator, the rivet will not loosen, it can be securely fixed over a long period of time, and the dust collection performance will be demonstrated stably. Can do.

  In another means, a frame fixing hole for fixing the first frame and the second frame is provided, and at least one of the frame fixing holes is a long hole.

  By this means, the first frame can be reliably fixed at a predetermined position, so that the position of the ground electrode plate can be reliably determined and the dust collection performance can be stably exhibited.

  Another means is to fix the first frame and the second frame by welding.

  By this means, the gap between the second frame and the ground electrode plate can be reduced, and the apparatus can be reduced in size.

  Another means is that the first frame and the second frame are made of aluminum.

  By this means, the weight of the apparatus can be reduced.

  Another means is that the first frame and the second frame are fixed by rivets.

  By this means, the first frame and the second frame can be securely fixed and are not easily loosened, so that the dust collection performance can be stably exhibited.

  Another means is that the ground electrode plate is composed of a plurality of ceramic substrates, and the connecting portions of the two ceramic substrates are connected by a metal connecting plate so that the conductive layers on the surfaces of the ceramic substrates are electrically connected to each other. It is a thing.

  By this means, even if one of the two sheets is not electrically grounded, if the other of the two sheets is electrically grounded, both of the two sheets are grounded by the connecting plate. Therefore, it can be reliably grounded and dust collection performance can be stably exhibited.

  Another means is to provide a stopper on the first frame to position the ground electrode plate.

  By this means, when deciding the position of the ground electrode plate, it is possible to easily position by simply inserting the ground electrode plate until it hits the stopper, reducing the assembly time and stabilizing the dust collection performance. It can be demonstrated.

  Another means is that the partition plate is fixed to the frame body after the ground electrode plate is inserted so that the ground electrode plate is not shifted to the outside of the frame body.

  By this means, even during operation of the electrostatic precipitator, the position of the ground electrode plate is not shifted, and the dust collection performance can be stably exhibited.

  According to the present invention, the dust collecting electrode plate and the discharge electrode plate can be laminated at a predetermined interval, the dust collecting performance is stable, and the dust collecting electrode plate is cracked even in the case of a material such as a brittle ceramic. It is possible to provide an electric dust collector that can be fixed without any trouble and at the same time can easily take out the dust collecting electrode plate in a short time.

  The invention according to claim 1 of the present invention is an electric dust collector comprising a discharge electrode to which a high voltage is applied, a grounding electrode plate facing the discharge electrode through air, and a frame. The discharge electrode and the grounding electrode plate are alternately arranged, and the frame is constituted by a first frame to which an elastic member and a patch are fixed, and a second frame for fixing the first frame. The grounding electrode plate is fixed by being sandwiched between the elastic member and the abutting device at a predetermined interval, and the grounding electrode plate can be fixed and laminated at a predetermined interval. The plate can be fixed without causing distortion, and since the compression force due to excessive tightening is not applied to the ground electrode plate, even if the ground plate is made of a material such as brittle ceramic, it can be fixed without cracking, and at the same time, the ground electrode Easily attach one board An effect that can be or Disconnect.

  According to the second aspect of the present invention, there are a plurality of fixing portions of the grounding electrode plate, a plurality of elastic members are brought into contact with one surface of the grounding electrode plate, and a plurality of pads are brought into contact with the other surface of the grounding electrode plate. Therefore, the dust collector electrode plate and the discharge electrode plate can be stacked with a predetermined interval, and the dust collecting performance can be exhibited stably.

  According to the third aspect of the present invention, a plurality of first frames are fixed to both sides of the second frame, the number of ground plates can be increased, and dust collection performance can be improved. It has the action.

  The invention according to claim 4 of the present invention is such that at least one of the elastic member and the brace is made of metal, and at least one of the elastic member or the brace is used to generate a current during corona discharge. It is possible to flow, and it is not necessary to provide a separate current path, and the apparatus can be downsized.

  According to a fifth aspect of the present invention, the ground electrode plate is provided with a conductive layer having electrical conductivity and a resistance layer having electrical resistance on the surface of the ceramic substrate having electrical insulation, and the elastic member and the conductive layer are provided. The width of the conductive layer is larger than the width of the elastic member, and both sides of the elastic member are within the range of the conductive layer, and the elastic member is parallel to the ground electrode plate. Even when contact is made obliquely without contact, the conductive layer on the ceramic substrate can be reliably contacted, so that corona discharge is generated and dust collection performance can be stably exhibited.

  The invention according to claim 6 of the present invention is such that at least one of the elastic member and the contactor is in contact with two adjacent grounding electrode plates at the same time, and the number of parts used for the elastic member and the contactor is reduced. It becomes possible to reduce it to half, and it has the effect that the time required for attaching and detaching the elastic member and the patch during assembly or maintenance can be shortened.

  According to a seventh aspect of the present invention, there is provided a fixing hole for fixing the first frame, the elastic member, and the abutment tool to each other, and at least one of the fixing holes is an elongated hole, It becomes possible to fix the member and the abutting tool at a predetermined position. In addition, the ground electrode plate can be provided at a predetermined interval, and the dust collection performance can be stably exhibited.

  The invention according to claim 8 of the present invention is such that a hole by burring is provided in the abutment to secure the abutment and the first frame, and the abutment and the first frame can be easily fixed. In addition to shortening the time for attachment / detachment, it is possible to reduce the weight because a nut is not required for fixing.

  According to the ninth aspect of the present invention, at least one of the elastic member and the patch is fixed to the first frame by a rivet, and the grounding electrode plate vibrates due to the wind speed during operation of the electric dust collector. Even in this case, the rivet does not loosen and can be securely fixed over a long period of time, and has the effect of stably exhibiting dust collection performance.

  According to a tenth aspect of the present invention, a frame fixing hole for fixing the first frame and the second frame is provided, and at least one of the frame fixing holes is an elongated hole, and the first frame is securely attached. Therefore, the position of the grounding electrode plate is reliably determined, and the dust collection performance can be stably exhibited.

  According to the eleventh aspect of the present invention, the first frame and the second frame are fixed by welding, the gap between the second frame and the grounding electrode plate can be reduced, and the apparatus can be downsized. It has the effect that it becomes possible.

  According to a twelfth aspect of the present invention, the first frame and the second frame are made of aluminum, and have the effect of reducing the weight of the apparatus.

  In the thirteenth aspect of the present invention, the first frame and the second frame are fixed by rivets, and the first frame and the second frame can be securely fixed and are less likely to loosen. It has the effect | action that a performance can be exhibited stably.

  According to a fourteenth aspect of the present invention, the grounding electrode plate is composed of a plurality of ceramic substrates, and the connecting portions of the two ceramic substrates are made of metal so that the conductive layers on the surfaces of the ceramic substrates are electrically connected to each other. If one of the two sheets is not electrically grounded, if the other of the two sheets is electrically grounded, the coupling plate Both of them are grounded, so that they can be reliably grounded, and the dust collection performance can be stably exhibited.

  According to the fifteenth aspect of the present invention, a stopper is provided on the first frame to position the grounding electrode plate. When determining the position of the grounding electrode plate, the grounding electrode plate is inserted until it hits the stopper. Thus, the positioning can be easily performed, the assembling time can be shortened, and the dust collection performance can be stably exhibited.

  According to the sixteenth aspect of the present invention, the partition plate is fixed to the frame body after the ground electrode plate is inserted so that the ground electrode plate is not shifted to the outside of the frame body, and during operation of the electric dust collector However, the position of the ground electrode plate is not displaced, and the dust collection performance can be stably exhibited.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
FIG. 1 is a perspective configuration diagram of the present embodiment, and is an electric dust collector including a grounding electrode plate 2 and a frame 3 that are opposed to a discharge electrode 1 through air. A plurality of the ground electrode plates 2 are alternately arranged, and the frame 3 is constituted by a first frame 6 to which the elastic member 4 and the abutment 5 are fixed, and a second frame 7 to which the first frame 6 is fixed. The ground electrode plate 2 is used as one ground electrode plate 2 by connecting two plates by a connecting plate 8. The ground electrode plate 2 may be composed of a single plate.

  In the present embodiment, the material of each part is as follows. The first frame 6, the second frame 7, the elastic member 4, the abutment tool 5, and the connecting plate 8 are made of stainless steel, and the ground electrode plate 2 is made of ceramics mainly made of alumina. This embodiment shows an example. For example, the patch 5 may be a resin.

FIG. 2 illustrates the surface state of the ground electrode plate 2, in which an electrically conductive layer 21 and a resistance layer 22 having an electric resistance value are provided on both surfaces. The surface resistivity of the conductive layer 21 is 10 Ω / □ or less, and the surface resistivity of the resistance layer 22 is 10 ⁶ to 10 ¹⁰ Ω / □.

  In the above configuration, a high voltage (−10 kV in the present embodiment) is applied to the discharge electrode 1 from a high voltage power supply (not shown), and the conductive layer 21 of the grounding electrode plate 2 is electrically connected to the elastic member or the fitting 5. The first frame 6 and the second frame 7 are connected to the ground.

  Since corona discharge occurs between the discharge electrode 1 and the ground electrode plate 2, particulate matter suspended in the air is charged by the corona discharge when passing between the discharge electrode 1 and the ground electrode plate 2. The charged particles generate a Coulomb force by the electric field and are collected on the ground electrode plate 2.

  The perspective configuration diagram shown in FIG. 1 is a charging unit that charges the particulate matter suspended in the air, and the collection efficiency can be further improved by providing a dust collection unit on the downstream side. The dust collecting portion is formed by alternately laminating a plurality of electrode plates to which a high voltage is applied and an electrode plate connected to the ground. Corona discharge does not occur, and an electric field is generated between the electrode plates.

  In the frame 3, the first frame 6 and the second frame 7 are fixed by bolts and nuts using the frame fixing holes 9. In the present embodiment, the frame fixing hole 9 of the second frame 7 is a long hole so that the mounting position of the first frame 6 can be finely adjusted. The grounding electrode plate 2 is fixed by using two first frames 6 in the Z direction, but has two sets of first frames 6 in the Y direction of the second frame 7. The ground plate 2 is fixed. The second frame 7 may be only one set instead of two sets in the Y direction.

  At this time, the tips of the plurality of needles 10 on both sides of the discharge electrode 1 are directed toward the ground electrode plate 2 on both sides (Y direction). As a result, corona discharge can be performed on each of them, and dust collection performance is improved.

  The feature of this embodiment is that the grounding electrode plate 2 is fixed with a predetermined interval by the elastic member 4 and the abutting tool 5.

  As shown in FIG. 1, the first frame 6 is provided with fixing holes 11 for fixing the elastic member 4 and the abutment 5 at a predetermined interval, and the fixing holes 11 are elongated holes in the X direction of FIG. Thus, the distance between the elastic member and the patch 5 can be finely adjusted one by one. In the present embodiment, the predetermined interval is such that the interval between adjacent grounding electrode plates 2 is 40 mm. Since the predetermined interval can always be maintained, the dust collection performance can be stably exhibited.

  The abutment tool 5 is provided with a hole by burring, so that it is not necessary to use a nut, and the weight is reduced.

  FIG. 3 is a detailed view of the elastic member 4 and the abutment 5 part. The elastic member 4 is formed in a leaf spring shape, and is disposed on both sides (upper and lower sides in FIG. 1) of the ground electrode plate 2 as shown in FIG. Therefore, a member that receives this is the patch 5.

  By fixing the grounding electrode plate 2 in this way, it is possible to reliably fix the space between the grounding electrode plates 2 at a predetermined interval without generating distortion. Furthermore, even if only one grounding electrode plate 2 is used, it can be easily removed simply by pulling it out.

  Further, even when the grounding electrode plate 2 is a ceramic substrate as in the present embodiment, the grounding electrode plate 2 is passed one by one through a conventional support rod and the interval is adjusted by the interval adjusting member. In the method of fixing with screws from both sides, there is a possibility that a brittle material such as ceramic may be broken by the compressive force generated by tightening the screws.

  Further, since the support rod is one part constituting the frame 3, when the frame 3 is twisted, the ground electrode plate 2 is also twisted and cracked if the ground electrode plate 2 is made of a brittle material.

  In the present embodiment, since the grounding electrode plates 2 are fixed one by one by the elastic member 4 and the abutting tool 5, it is possible to prevent a compression force due to screw tightening and cracking due to twisting. Further, vibration generated when air flows between the ground electrode plates 2 can be absorbed by the elastic member 4, and cracking due to vibration can be prevented.

  Here, in the conductive layer 21 on the ceramic substrate, the portion that contacts the elastic member 4 is inclined even if the portion that contacts the ground electrode plate 2 is slightly deformed (for example, not parallel to the ground electrode plate 2). Even in this case, the width of the conductive layer 21 is made wider than the width of the elastic member 4 (shown by a dotted line in FIG. 2) so as to ensure conduction. With this configuration, the ground electrode plate can be reliably grounded, corona discharge can be reliably generated, and dust collection performance can be stably exhibited.

  Further, the elastic member 4 and the abutment tool 5 are simultaneously in contact with the adjacent grounding electrode plate 2 as a single unit, and the number of parts is larger than when the elastic member 4 and the abutting tool 5 are used for each grounding electrode plate 2. Since it suffices to halve, the time required for attaching / detaching the elastic member 4 and the patch 5 can be shortened.

  Further, the grounding electrode plate 2 has one surface in contact with the elastic member 4 and the other surface is in contact with the abutment tool 5, and on the same surface, the elastic member 4 on one side and the abutment device 5 on the other side are not fixed. . This is to securely fix the position of the ground electrode plate 2. When one end of the same surface of the ground electrode plate 2 is fixed by the elastic member 4 and the other end is fixed by the abutment tool 5, moment force is applied to the ground electrode plate 2. As a result, the interval between the ground electrode plates 2 is not parallel, and the interval varies.

  In the positioning method of the grounding electrode plate 2 in the Y direction shown in FIG. 1, the position is determined by the stopper 12 provided in the first frame 6.

  In the present embodiment, the stopper 12 is formed in an L shape integrally with the first frame 6, and the number of parts can be reduced. At the same time, the first frame is an L shape, so that the rigidity is improved and the rigidity of the entire frame body is increased. Will improve.

  Since the stopper 12 alone may be displaced to the outside of the frame 3, the position of the ground electrode plate 2 can be determined by fixing the partition plate 13 to the frame body 3 after the ground electrode plate 2 is inserted as shown in FIG. Is fixed and stable dust collection performance can be demonstrated.

(Embodiment 2)
In the present embodiment, the material of the first frame 6, the second frame 7, the elastic member 4, and the abutting tool 5 shown in FIG. 1 is aluminum. As a result, the weight of the apparatus can be reduced, and the work can be easily taken in and out and the workability can be improved.

  In the present embodiment, the elastic member 4 or the patch 5 and the first frame 6 are fixed by rivets. The first frame 6 and the second frame 7 are also fixed by rivets. By riveting, it is possible to securely fix each other, there is less looseness in use compared to screwing, the position of the grounding electrode plate 2 does not change in the long term, and dust collection performance can be demonstrated stably. it can.

(Embodiment 3)
FIG. 4 is a detailed view showing the present embodiment, in which the first frame 6 and the second frame 7 are fixed by welding.

  As shown in FIG. 3, in the case of screwing or riveting, a screw or rivet is placed between the second frame 7 and the abutment 5 that fixes the ground electrode plate 2 closest to the second frame 7. A gap must be provided between the second frame 7 and the patch 5.

  However, as shown in FIG. 4, if the first frame 6 and the second frame 7 are fixed by welding, it is not necessary to provide such a gap, and the apparatus can be miniaturized.

  As described above, a plurality of discharge electrodes 1 and grounding electrode plates 2 are alternately arranged, and the frame is composed of the first frame 6 to which the elastic member and the application tool are fixed, and the second frame to which the first frame 6 is fixed. The ground electrode plate 2 is constituted by a frame 7 and is fixed by being sandwiched between the elastic member 4 and the abutting tool 5 with a predetermined interval. The ground electrode plate 2 can be fixed and laminated at a predetermined interval. Yes, it can be fixed without causing distortion in the grounding electrode plate 2, and since the compression force due to excessive tightening is not applied to the grounding electrode plate 2, it can be fixed without cracking even when the grounding electrode plate 2 is made of a material such as brittle ceramics. In addition, it is possible to provide an electric dust collector that is effective in that one grounding electrode plate 2 can be easily attached or detached.

  The present invention is effective as an air cleaning method when trapping suspended particulate matter in the air, and dust collection performance is achieved by fixing the grounding electrode plate 2 with an elastic member 4 and a patch 5 at a predetermined interval. Providing an electrostatic precipitator that can be reliably fixed even if the grounding electrode plate 2 is made of a brittle material such as ceramics because the grounding electrode plate 2 is not subjected to a strong compressive force. It is.

The perspective block diagram of the electric dust collector which shows Embodiment 1, 2 of this invention Detailed view of the ground plate Detailed view of the fixed part Detailed view of fixed portion showing Embodiment 3 of the present invention Configuration diagram showing a conventional electrostatic precipitator

DESCRIPTION OF SYMBOLS 1 Discharge electrode 2 Grounding electrode plate 3 Frame body 4 Elastic member 5 Attenuator 6 1st frame 7 2nd frame 8 Connecting plate 9 Frame fixing hole 10 Needle 11 Fixing hole 12 Stopper 13 Partition plate 21 Conductive layer 22 Resistance layer

Claims (16)

An electric dust collector comprising a discharge electrode to which a high voltage is applied, a grounding electrode plate facing the discharge electrode through air, and a frame, the discharge electrode, and the grounding electrode plate And the frame body includes a first frame to which an elastic member and a patch are fixed, and a second frame to fix the first frame, and the ground electrode plate is spaced at a predetermined interval. An electric dust collector characterized in that it is vacated and fixed between the elastic member and the abutment tool. 2. The electricity according to claim 1, wherein there are a plurality of fixing portions of the ground electrode plate, a plurality of elastic members are brought into contact with one surface of the ground electrode plate, and a plurality of pads are brought into contact with the other surface of the ground electrode plate. Dust collector. 3. The electrostatic precipitator according to claim 1, wherein a plurality of first frames are fixed to both sides of the second frame. 4. The electric dust collector according to claim 1, wherein at least one of the elastic member and the patch is made of metal. The ground electrode plate is provided with a conductive layer having electrical conductivity and a resistance layer having an electrical resistance value on the surface of an electrically insulating ceramic substrate. 5. The electrostatic precipitator according to claim 1, wherein the width of the conductive layer is wider, and both sides of the elastic member are within the range of the conductive layer. 6. The electric dust collector according to claim 1, wherein at least one of the elastic member and the abutting tool is simultaneously in contact with two adjacent grounding electrode plates. 7. The electric current collector according to claim 1, wherein a fixing hole for fixing the first frame, the elastic member, and the patch is provided, and at least one of the fixing holes is an elongated hole. Jin machine. The electric dust collector according to any one of claims 1 to 7, wherein a hole by burring is provided in the brace for fixing the brace and the first frame. The electric dust collector according to claim 1, wherein at least one of the elastic member and the patch is fixed to the first frame by a rivet. 10. The electrostatic precipitator according to claim 1, wherein a frame fixing hole for fixing the first frame and the second frame is provided, and at least one of the frame fixing holes is a long hole. The electric dust collector according to claim 1, wherein the first frame and the second frame are fixed by welding. The electric dust collector according to any one of claims 1 to 11, wherein the first frame and the second frame are made of aluminum. The electric dust collector according to any one of claims 1 to 12, wherein the first frame and the second frame are fixed by rivets. The ground electrode plate is composed of a plurality of ceramic substrates, and the connecting portions of the two ceramic substrates are connected by a metal connecting plate so that the conductive layers on the surfaces of the ceramic substrates are electrically connected to each other. The electric dust collector according to claim 1. The electric dust collector according to claim 1, wherein a stopper is provided on the first frame to position the ground electrode plate. The electrostatic precipitator according to any one of claims 1 to 15, wherein the partition plate 13 is fixed to the frame body after the ground electrode plate is inserted so that the ground electrode plate is not shifted to the outside of the frame body.

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