Waste gas treatment equipment

Abstract

The invention provides waste gas treatment equipment, and relates to the technical field of waste gas treatment, and the waste gas treatment equipment comprises: a housing having a gas inlet and a gas outlet which can communicate with each other; the first filter screen is arranged on a communicating path of the air inlet and the air outlet; an anode and a cathode are arranged in the electric treatment box; a through-wall porcelain insulator is also arranged in the electric treatment box; the porcelain bottle fixing device is used for fixing a wall-through porcelain bottle; the insulating cover is installed on the porcelain bottle fixing device, and the wall-through porcelain bottle is located in the insulating cover; the insulating cover is provided with a purification channel for waste gas circulation, and an electric field between the cathode and the anode is located in the purification channel; waste gas can firstly pass through the first filter screen and then enter the electric treatment box through the gas outlet; and a forced evaporation fan is arranged on the insulating cover. After the waste gas is purified by the first filter screen, the content of particulate matters is reduced, so that on one hand, the treatment load of the ionization purification mechanism at the rear end is reduced, and on the other hand, the formation of attachments on the electric isolator is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas treatment, and in particular to a waste gas treatment device. Background Art

[0002] The waste gas treatment equipment uses ionization technology. In actual application, the waste gas molecules in the waste gas are ionized by the electric field generated between the positive and negative electrodes, so that the dust, oil, inorganic salts, etc. in the waste gas are negatively charged and move to the anode under the action of the electric field to be collected. The positive and negative electrodes are separated by insulators, which are part of the through-the-wall porcelain bottle.

[0003] However, when the exhaust gas passes through the electric field, the particulate matter in the exhaust gas easily adheres to the insulator to form attachments; due to limited space, the discharge distance between the cathode and anode is very short; under the influence of the attachments, the dielectric strength of the insulator is significantly reduced, resulting in frequent flashover and creepage phenomena on the insulator, which needs to be improved. Summary of the invention

[0004] In view of the above situation, the present invention provides an exhaust gas treatment device, which aims to solve the technical problems that when the exhaust gas passes through the electric field, the particulate matter in the exhaust gas is easily attached to the insulator to form attachments; due to the limited space, the discharge distance between the cathode and the anode is very short; under the influence of the attachments, the dielectric strength of the insulator is significantly reduced, resulting in frequent flashover and creepage phenomena on the insulator.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] The present invention provides an exhaust gas treatment device, comprising:

[0007] A housing having an air inlet and an air outlet that are communicable with each other;

[0008] A first filter screen is arranged on a communication path between the air inlet and the air outlet;

[0009] The electric treatment box has an anode and a cathode arranged therein; the electric treatment box is also provided with:

[0010] The through-the-wall porcelain bottle comprises an insulator, wherein a plurality of insulators are connected in series to form a hollow structure having a central channel; a cathode is arranged at the top of the through-the-wall porcelain bottle, and a cathode discharge wire is connected to the cathode, and the cathode discharge wire is introduced into the central channel from the bottom of the through-the-wall porcelain bottle, and the bottom of the through-the-wall porcelain bottle can be inserted into a porcelain bottle fixing device;

[0011] A porcelain bottle fixing device, connected with an anode discharge wire, used to fix the through-wall porcelain bottle;

[0012] The insulating cover is installed on the porcelain bottle fixing device, and the through-wall porcelain bottle is located in the insulating cover; the insulating cover has a purification channel for the exhaust gas to flow, and the electric field between the cathode and the anode is located in the purification channel;

[0013] Among them, the exhaust gas can first pass through the first filter and then enter the electrical processing box from the air outlet; a forced evaporation fan is arranged on the insulating cover.

[0014] In some embodiments of the present invention, the porcelain bottle fixing device includes a metal bottom plate, and the metal bottom plate is connected to the anode discharge wire.

[0015] In some embodiments of the present invention, a guard plate is disposed around the metal bottom plate, and the guard plate and the metal bottom plate together form a groove;

[0016] The insulating cover is plugged into the groove; four insulating pillars are respectively arranged at four corners of the groove, and the four insulating pillars are in pressure contact with the inner wall of the insulating cover.

[0017] In some embodiments of the present invention, a second filter screen and an adsorption screen are also included. The mesh number of the second filter screen is greater than the mesh number of the first filter screen. The adsorption screen is used to adsorb harmful gases in the exhaust gas. The exhaust gas can flow through the first filter screen, the second filter screen and the adsorption screen in sequence.

[0018] In some embodiments of the present invention, the support tube is transversely arranged in the shell, one end of the support tube extends outside the shell and is rigidly connected to the inlet end of the electrical processing box; the support tube has a first air hole and a second air hole, the first air hole is located between the first filter screen and the second filter screen, and the second air hole is located between the second filter screen and the adsorption screen;

[0019] The first connecting sleeve can be slidably sleeved on the support tube in a transverse manner; the first filter screen is connected to the first connecting sleeve; an extension portion is connected to one end of the first connecting sleeve close to the second filter screen, and the extension portion or the first connecting sleeve can block the first air hole;

[0020] The second connecting sleeve can be slidably sleeved on the supporting tube in a transverse manner; the second filter screen is connected to the second connecting sleeve; a first valve structure for preventing or allowing exhaust gas to pass through the second filter screen is arranged on a side of the second filter screen facing the air inlet; the second connecting sleeve can block the second air hole;

[0021] A third connecting sleeve is sleeved on the support pipe; the adsorption net is connected to the third connecting sleeve; a second valve structure for preventing or allowing the exhaust gas to pass through the adsorption net is arranged on a side of the adsorption net facing the air inlet;

[0022] Wherein, in the process of moving the first connecting sleeve and the second connecting sleeve left and right, the first air hole and the second air hole can be opened or closed;

[0023] When the first air hole and the second air hole are both opened and the first valve structure is closed, the flow path of the exhaust gas is to flow through the air inlet, the first filter, the first air hole, the support pipe and the purification channel in sequence, which is the first flow path;

[0024] When the first air hole is closed and the second air hole is opened, and the first valve structure is opened and the second valve structure is closed, the flow path of the exhaust gas is to flow through the air inlet, the first filter screen, the second filter screen, the second air hole, the support pipe and the purification channel in sequence, which is the second flow path;

[0025] When the first air hole and the second air hole are both closed and the first valve structure and the second valve structure are opened, the flow path of the exhaust gas is to flow through the air inlet, the first filter, the second filter, the adsorption net, the air outlet and the purification channel in sequence, which is the third flow path.

[0026] In some embodiments of the present invention, the third connecting sleeve can be slidably sleeved on the support tube in a transverse manner, and the first connecting sleeve, the second connecting sleeve and the third connecting sleeve are connected by bolts; further comprising:

[0027] An electromagnet is arranged on the right inner wall of the shell;

[0028] An iron ring is located on the left side of the electromagnet and connected to the right end of the third connecting sleeve, and the iron ring is used in conjunction with the electromagnet;

[0029] A spring, one end of which is connected to the left inner wall of the housing, and the other end of which is connected to the left end of the first connecting sleeve;

[0030] Among them, when the exhaust gas flows along the first flow path, the electromagnet is de-energized and the first filter is located at the leftmost end of the path when it moves left and right; when the exhaust gas flows along the second flow path, the electromagnet is passed with current A1; when the exhaust gas flows along the third flow path, the electromagnet is passed with current A2, A2 is greater than A1, and the first filter is located at the rightmost end of the path when it moves left and right.

[0031] In some embodiments of the present invention, it is detected whether there is attachment on the insulator and the current of the electromagnet is adjusted according to the volume of the attachment to switch the flow path of the exhaust gas.

[0032] In some embodiments of the present invention, when it is detected that there is attachment on the insulator or the exhaust gas flow rate in the purification channel is lower than the lower limit, the power of the forced evaporation fan is first increased. If it is still not restored or improved, the electromagnet is cycled multiple times to perform the following process while the equipment continues to purify the exhaust gas: the electromagnet is first passed with current A2 and then powered off.

[0033] In some embodiments of the present invention, a notch is provided on the lower side of the shell, an openable and closable sealing door is provided at the notch, and the first filter screen, the second filter screen and the adsorption screen can all be aligned with the notch; further comprising:

[0034] The first annular mounting plate has an inner side connected to the first connecting sleeve and an outer side in sliding contact with the inner wall of the shell; the first mounting plate has a plurality of first through holes; the first filter screen is fan-shaped, and a plurality of first filter screens are adsorbed on the first mounting plate by magnets.

[0035] In some embodiments of the present invention, it further includes:

[0036] The second mounting plate is annular, the inner side of which is connected to the second connecting sleeve, and the outer side is in sliding contact with the inner wall of the shell; the second filter screen is fan-shaped, and a plurality of second filter screens are adsorbed on the second mounting plate by magnets; the second mounting plate is provided with a plurality of second through holes, and a plurality of first fan-shaped elastic sheets are arranged in a ring array in the second through holes, and the non-arc edges of two adjacent first fan-shaped elastic sheets can contact or separate with each other due to changes in air pressure;

[0037] The third mounting plate is annular, and its inner side is connected to the third connecting sleeve, and its outer side is in sliding contact with the inner wall of the shell; the adsorption net is fan-shaped, and multiple adsorption nets are adsorbed on the third mounting plate by magnets; the third mounting plate is provided with a plurality of third through holes, and a plurality of second fan-shaped elastic sheets are arranged in an annular array inside the third through holes, and the non-arc edges of two adjacent second fan-shaped elastic sheets can contact or separate with each other due to changes in air pressure.

[0038] The embodiments of the present invention have at least the following advantages or beneficial effects:

[0039] 1. Under the action of the electric field, the exhaust gas molecules and dust inside the insulation cover will carry the electrons in the electric field, move to the anode and be captured. Turn on the forced evaporation fan. Under the action of the forced evaporation fan, the gas flow rate inside the insulation cover increases and the air pressure decreases, thereby pressing the exhaust gas into the insulation cover. On the one hand, this greatly accelerates the air circulation efficiency in the purification channel and can blow the dust that has not yet attached to the insulator out of the insulation cover to reduce the attachment on the insulator. On the other hand, it accelerates the evaporation of water vapor in the exhaust gas. While protecting the cathode discharge line, it can effectively prevent the water vapor in the exhaust gas from combining with dust to form attachments on the insulator.

[0040] 2. After the exhaust gas enters the shell from the air inlet, it first passes through the first filter and then enters the electric treatment box from the air outlet for electric treatment and purification. After the exhaust gas is purified by the first filter, the content of particulate matter is reduced, which reduces the processing load of the rear-end ionization purification mechanism on the one hand, and helps to reduce the formation of attachments on the electric isolator on the other hand.

[0041] 3. By combining the above two methods, the attachments on the surface of the insulator are effectively reduced, making it less likely for flashover and creepage to occur on the insulator.

[0042] Other features and advantages of the present invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practicing the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0044] Figure 1 It is a schematic diagram of the electrical isolator structure;

[0045] Figure 2 This is a schematic diagram of the structure of the porcelain bottle fixing device;

[0046] Figure 3 This is a schematic diagram of the structure of a wall-penetrating porcelain bottle;

[0047] Figure 4 This is the layout diagram of 8 electrical isolators arranged in the electrical processing box.

[0048] Figure 5 This is a schematic diagram of the appearance of the exhaust gas treatment equipment;

[0049] Figure 6 This is a schematic diagram of the interior of the exhaust gas treatment equipment;

[0050] Figure 7 It is a structural diagram of the primary processing mechanism;

[0051] Figure 8 for Figure 7 A structural diagram of the left side of the first mounting plate;

[0052] Fig. 9 for Figure 7 Schematic diagram of the structure on the left side of the second mounting plate.

[0053] icon:

[0054] 0-electric isolator, 11-porcelain bottle fixing device, 111-metal bottom plate, 1111-installation through hole, 1112-placement hole, 1113-first positioning hole, 1114-fixing bolt, 112-guard plate, 113-square tube, 12-insulating support, 2-insulating cover, 21-purification channel, 3-forced evaporation fan, 4-through-wall porcelain bottle, 41-cathode, 42-installation base, 421-second positioning hole, 43-insulator, 51-anode discharge wire, 52-cathode discharge wire, 6-electric treatment box,

[0055] 71-shell, 711-air inlet, 712-air outlet, 713-check valve, 714-notch, 715-sealing door, 72-first filter screen, 73-support tube, 731-first air hole, 732-second air hole, 74-first connecting sleeve, 741-extension portion, 75-second connecting sleeve, 76-third connecting sleeve, 77-first flow path, 78-second flow path, 79-third flow path, 81-electromagnet, 82-iron ring, 83-spring, 84-first mounting plate, 841-first through hole, 842-connecting hole, 85-second mounting plate, 851-second through hole, 852-first valve structure, 853-first fan-shaped elastic sheet, 86-third mounting plate, 861-third through hole, 862-second valve structure, 91-second filter screen, 92-adsorption screen. DETAILED DESCRIPTION

[0056] In the following, only some exemplary embodiments are briefly described. As those skilled in the art can realize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the embodiments of the present invention.

[0057] In the description of the embodiments of the present invention, it should be understood that the terms "center", "lateral", "up", "down", "left", "right", "top", "bottom", "inside", "outside", "axial", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the embodiments of the present invention.

[0058] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0059] “Several” means one or more than one, unless otherwise clearly and specifically defined.

[0060] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0061] The embodiments of the present invention are described in detail below.

[0062] Example 1

[0063] See also Figure 1 to Figure 9 , this embodiment provides an exhaust gas treatment device, including a primary treatment mechanism, an ionization purification mechanism and an electrical isolator 0.

[0064] The primary treatment mechanism preliminarily purifies the exhaust gas by filtering, or filtering and adsorption. The primary treatment mechanism includes a housing 71 and a first filter screen 72 .

[0065] The shell 71 has an air inlet 711 and an air outlet 712 which are communicable with each other, and the air outlet 712 is connected to the inlet end of the ionization purification mechanism (ie, the inlet end of the electrical treatment box 6 ).

[0066] The first filter 72 is disposed on a communication path between the air inlet 711 and the air outlet 712 .

[0067] After the exhaust gas enters the housing 71 from the air inlet 711, it flows along the communication path and passes through the first filter 72, and then enters the ionization purification mechanism from the air outlet 712 for electrical treatment and purification. After the exhaust gas is purified by the primary treatment mechanism, the content of particulate matter is reduced, which reduces the processing load of the rear ionization purification mechanism on the one hand, and helps to reduce the formation of attachments on the electrical isolator 0 on the other hand.

[0068] The ionization purification mechanism includes an electric treatment box 6, in which an anode and a cathode 41 are arranged at intervals. An electric field for ionizing the exhaust gas can be formed between the anode and the cathode 41. An air outlet 712 on the housing 71 is connected to the inlet end of the ionization purification mechanism, and a check valve 713 is arranged at the air outlet 712.

[0069] The electric isolator 0 is located in the electric processing box 6 and is used to isolate the anode and the cathode 41. The electric isolator 0 includes a through-wall porcelain bottle 4, a porcelain bottle fixing device 11, an insulating support 12 and an insulating cover 2.

[0070] The through-wall porcelain bottle 4 includes a disc-shaped insulator 43, and a plurality of insulators 43 are connected in series to form a hollow structure with a central channel. The cathode 41 is arranged at the top of the through-wall porcelain bottle 4, and the cathode 41 is connected to a cathode discharge wire 52, and the cathode discharge wire 52 is introduced into the central channel from the bottom of the through-wall porcelain bottle 4, and the bottom of the through-wall porcelain bottle 4 can be inserted into the porcelain bottle fixing device 11. A disc-shaped mounting base 42 is arranged near the bottom of the through-wall porcelain bottle 4, and the mounting base 42 is used to limit the depth of the bottom of the through-wall porcelain bottle 4 inserted into the porcelain bottle fixing device 11. A plurality of first positioning holes 1113 are provided on the mounting base 42 along the circumferential direction of the axis of the through-wall porcelain bottle 4.

[0071] The diameter of the insulator 43 of the through-wall porcelain bottle 4 is 160 mm, the envelope length of the insulator 43 in the axial direction is greater than 1800 mm, the interval between the insulators 43 is 40 mm, the wall thickness of the insulator 43 is greater than 20 mm, and the central channel diameter is 40 mm.

[0072] The porcelain bottle fixing device 11 is made of anti-corrosion and anti-rust metal material and comprises two square metal bottom plates 111 arranged up and down, and the metal bottom plates 111 are provided with a guard plate 112, a mounting through hole 1111, a placement hole 1112 and a second positioning hole 421.

[0073] The metal bottom plate 111 is used as an anode and is connected to the anode discharge wire 51 . A protective plate 112 is arranged around the metal bottom plate 111 . The protective plate 112 and the metal bottom plate 111 together form a groove. The openings of the grooves on the two metal bottom plates 111 face opposite directions.

[0074] Each of the four corners of the metal bottom plate 111 has a square mounting through hole 1111 ; the two metal bottom plates 111 are connected by four square tubes 113 , and the outer dimensions of the square tubes 113 match the dimensions of the mounting through holes 1111 .

[0075] The placement hole 1112 is located at the center of the metal bottom plate 111 and is used to be plugged into the bottom of the wall-penetrating porcelain bottle 4 .

[0076] The plurality of second positioning holes 421 are evenly distributed along the circumferential direction of the placement hole 1112 and are provided with corresponding fixing bolts 1114. When the axis of the mounting base 42 coincides with the center of the metal bottom plate 111, the second positioning holes 421 correspond to the first positioning holes 1113 one by one and can be connected by the fixing bolts 1114, so that the through-wall porcelain bottle 4 and the porcelain bottle fixing device 11 are fixed together.

[0077] The insulating support 12 is plugged into the square tube 113 , and the outer dimensions of the insulating support 12 match the inner dimensions of the square tube 113 . There are four insulating support 12 .

[0078] The insulating cover 2 is plugged into the groove. After the insulating cover 2 is installed, the through-wall porcelain bottle 4 is located in the insulating cover 2, and the four insulating pillars 12 are in pressure contact with the inner wall of the insulating cover 2 to form positioning and limiting. The insulating cover 2 has a purification channel 21 for exhaust gas circulation, and the electric field between the cathode 41 and the anode is located in the purification channel 21.

[0079] A forced evaporation fan 3 is fixed on the insulation cover 2, and the forced evaporation fan 3 is used to accelerate the airflow in the purification channel 21 to quickly discharge the exhaust gas out of the insulation cover 2. The air volume of the forced evaporation fan 3 is greater than 5m³ / min.

[0080] There are two insulating covers 2, and the two insulating covers 2 are respectively plugged into a groove. In other implementation scenarios, there can be only one insulating cover 2. In this embodiment, 8 electrical isolators 0 are arranged in the electrical processing box 6, with a total of 16 forced evaporation fans 3. The orientation and distribution position of the purification channel 21 on the insulating cover 2 are set as needed.

[0081] Under the action of the electric field, the exhaust gas molecules and dust inside the insulating cover 2 will carry the electrons in the electric field, move to the anode and be captured. The forced evaporation fan 3 is turned on. Under the action of the forced evaporation fan 3, the gas flow rate inside the insulating cover 2 increases and the air pressure decreases, thereby pressing the exhaust gas into the insulating cover 2. On the one hand, this greatly accelerates the air circulation efficiency in the purification channel 21, and can blow the dust that has not yet attached to the insulator 43 out of the insulating cover 2 to reduce the attachment on the insulator 43. On the other hand, it accelerates the evaporation of water vapor in the exhaust gas, and while protecting the cathode discharge line 52, it can effectively prevent the water vapor in the exhaust gas from combining with the dust to form attachments on the insulator 43.

[0082] Example 2

[0083] See also Figure 1 to Figure 9 In this embodiment, the primary treatment mechanism further includes a second filter screen 91 and an adsorption screen 92. The mesh number of the second filter screen 91 is greater than the mesh number of the first filter screen 72. The adsorption screen 92 is used to adsorb harmful gases in the exhaust gas. The exhaust gas can flow through the first filter screen 72, the second filter screen 91 and the adsorption screen 92 in sequence to perform multi-stage treatment on the exhaust gas and reduce dust entering the ionization purification mechanism and the electrical isolator 0.

[0084] The primary processing mechanism further includes a support tube 73 , a first connecting sleeve 74 , a second connecting sleeve 75 and a third connecting sleeve 76 .

[0085] The support tube 73 is horizontally arranged in the shell 71, and one end of the support tube 73 extends outside the shell 71 and is rigidly connected to the inlet end of the ionization purification mechanism; the support tube 73 has a first air hole 731 and a second air hole 732, the first air hole 731 is located between the first filter screen 72 and the second filter screen 91, and the second air hole 732 is located between the second filter screen 91 and the adsorption screen 92.

[0086] The first connecting sleeve 74 can be laterally slidably mounted on the support tube 73; the first filter screen 72 is connected to the first connecting sleeve 74; the first connecting sleeve 74 is connected to an end close to the second filter screen 91 with an extension portion 741, and the extension portion 741 or the first connecting sleeve 74 can block the first air hole 731.

[0087] The second connecting sleeve 75 can be slidably sleeved on the supporting tube 73 in a transverse manner; the second filter screen 91 is connected to the second connecting sleeve 75; a first valve structure 852 is provided on the side of the second filter screen 91 facing the air inlet 711 for preventing or allowing the exhaust gas to pass through the second filter screen 91. The second connecting sleeve 75 can block the second air hole 732.

[0088] The third connecting sleeve 76 is sleeved on the supporting tube 73 ; the adsorption net 92 is connected to the third connecting sleeve 76 ; a second valve structure 862 for preventing or allowing exhaust gas to pass through the adsorption net 92 is provided on the side of the adsorption net 92 facing the air inlet 711 .

[0089] The first connecting sleeve 74 and the second connecting sleeve 75 can move left and right synchronously; after the first connecting sleeve 74 and the second connecting sleeve 75 are synchronously moved rightward by a first predetermined distance, the first air hole 731 is blocked by the extension part 741, and the second air hole 732 is not blocked by the second connecting sleeve 75; after the first connecting sleeve 74 and the second connecting sleeve 75 are synchronously moved rightward by a second predetermined distance, the first air hole 731 is blocked by the first connecting sleeve 74, and the second air hole 732 is blocked by the second connecting sleeve 75. After the first connecting sleeve 74 and the second connecting sleeve 75 are synchronously moved leftward by the second predetermined distance, the first air hole 731 is blocked by the extension part 741, and the second air hole 732 is not blocked by the second connecting sleeve 75; after the first connecting sleeve 74 and the second connecting sleeve 75 are synchronously moved leftward by the first predetermined distance, the first air hole 731 is not blocked by the first connecting sleeve 74 and the extension part 741, and the second air hole 732 is not blocked by the second connecting sleeve 75. That is, in the process of synchronously moving the first connecting sleeve 74 and the second connecting sleeve 75 left and right, the first air hole 731 and the second air hole 732 can be opened or closed.

[0090] When the first air hole 731 and the second air hole 732 are both opened and the first valve structure 852 is closed, the exhaust gas flows through the air inlet 711 , the first filter 72 , the first air hole 731 , the support tube 73 and the purification channel 21 in sequence, which is the first flow path 77 .

[0091] When the first air hole 731 is closed and the second air hole 732 is opened, and the first valve structure 852 is opened and the second valve structure 862 is closed, the exhaust gas flows through the air inlet 711, the first filter 72, the second filter 91, the second air hole 732, the support tube 73 and the purification channel 21 in sequence, which is the second flow path 78.

[0092] When the first air hole 731 and the second air hole 732 are both closed and the first valve structure 852 and the second valve structure 862 are opened, the exhaust gas flows through the air inlet 711, the first filter 72, the second filter 91, the adsorption net 92, the air outlet 712 and the purification channel 21 in sequence, which is the third flow path 79.

[0093] When the exhaust gas flows along the first flow path 77 , the second flow path 78 , and the third flow path 79 , respectively, the purification effect is improved sequentially.

[0094] In combination with the above content, taking into account that some exhaust gases have low dust content and low harmful gas content, it is not always necessary to use the second filter 91 for filtering and the adsorption net 92 for adsorption. When treating the exhaust gas, this embodiment can selectively use the second filter 91 and the adsorption net 92. This helps to extend the replacement cycle of the second filter 91 and the adsorption net 92.

[0095] In order to facilitate the synchronous left and right movement of the first connecting sleeve 74 and the second connecting sleeve 75, the third connecting sleeve 76 can be laterally slidably mounted on the support tube 73, and the first connecting sleeve 74, the second connecting sleeve 75 and the third connecting sleeve 76 are connected in series by bolts and other connecting parts; in addition, the primary processing mechanism also includes an electromagnet 81, an iron ring 82 and a spring 83.

[0096] The electromagnet 81 is provided on the right inner wall of the housing 71 .

[0097] The iron ring 82 is located on the left side of the electromagnet 81 and is connected to the right end of the third connecting sleeve 76 . The iron ring 82 is used in conjunction with the electromagnet 81 .

[0098] One end of the spring 83 is connected to the left inner wall of the housing 71 , and the other end is connected to the left end of the first connecting sleeve 74 .

[0099] When the exhaust gas flows along the first flow path 77, the electromagnet 81 is de-energized and the first filter 72 is located at the leftmost end of the path when the exhaust gas moves left and right; when the exhaust gas flows along the second flow path 78, the electromagnet 81 is energized by a current A1; when the exhaust gas flows along the third flow path 79, the electromagnet 81 is energized by a current A2, which is greater than A1, and the first filter 72 is located at the rightmost end of the path when the exhaust gas moves left and right.

[0100] With the above solution, after the electromagnet 81 is powered on, the iron ring 82 is attracted by the magnetic force and drives the third connecting sleeve 76, the second connecting sleeve 75, and the first connecting sleeve 74 to move rightward, thereby synchronously moving the first connecting sleeve 74 and the second connecting sleeve 75 to move rightward; after the electromagnet 81 is powered off, under the action of the restoring force of the spring 83, the third connecting sleeve 76, the second connecting sleeve 75, and the first connecting sleeve 74 move leftward to the initial position, in which state, the first air hole 731 and the second air hole 732 are both open;

[0101] The presence of attachments on the insulator 43 can be detected by using a camera or other equipment. When the presence of attachments on the insulator 43 is detected by using a camera or other equipment, the flow path of the exhaust gas can be switched by adjusting the current of the electromagnet 81 according to the size of the attachments, for example, the first flow path 77 can be switched to the second flow path 78 or the third flow path 79, so as to improve the purification effect, reduce the continued increase and accumulation of attachments on the insulator 43, and can be used in conjunction with the impact method mentioned below to clean the surface of the insulator 43;

[0102] When the camera detects that there is attachment on the insulator 43 or the sensor detects that the exhaust gas flow rate in the purification channel 21 is lower than the lower limit, it means that the first filter 72, the second filter 91 and the adsorption net 92 may be seriously blocked. At this time, the power of the 16 forced evaporation fans 3 can be increased for a short time. If it is still not restored or improved, the electromagnet 81 is cycled for multiple times (such as three times) while the equipment continues to purify the exhaust gas to perform the following process: first pass the maximum current (A2) to the electromagnet 81 and then cut off the power. After the power is cut off, the spring 83 reset force is used to shake off and knock off the blockage on the first filter 72, the second filter 91 and the adsorption net 92 (collision can be configured in the shell 71). The falling obstruction will fall on the inner side of the sealing door 715. When the sealing door 715 is subsequently opened for maintenance, replacement of components, etc., the obstruction can be discharged, which facilitates the cleaning of the inside of the housing 71. When the spring 83 is not compressed, the first connecting sleeve 74 and the second connecting sleeve 75 can respectively block the first air hole 731 and the second air hole 732, so that the first air hole 731 and the second air hole 732 are closed when the above-mentioned impact occurs, and the dust generated after the impact cannot enter the support tube 73 through the first air hole 731 and the second air hole 732. The dust is not easy to enter the purification channel 21 at the rear end and is not easy to adhere to the insulator 43. In addition, the vibration generated by the impact can be partially transmitted to the insulator 43, which is more conducive to maintaining the cleanliness of the surface of the insulator 43.

[0103] In order to facilitate the disassembly, assembly and replacement of the first filter screen 72, the second filter screen 91 and the adsorption screen 92, a notch 714 is provided on the lower side of the shell 71, and an openable and closable sealing door 715 is provided at the notch 714. The first filter screen 72, the second filter screen 91 and the adsorption screen 92 can all be aligned with the notch 714; in addition, the primary processing mechanism also includes a first mounting plate 84, a second mounting plate 85 and a third mounting plate 86.

[0104] The first mounting plate 84 is annular, with the inner side of the first mounting plate 84 connected to the first connecting sleeve 74 and the outer side in sliding contact with the inner wall of the shell 71; the first mounting plate 84 has a plurality of first through holes 841; the first filter screen 72 is fan-shaped, and a plurality of first filter screens 72 are adsorbed on the first mounting plate 84 by magnets, which facilitates disassembly, assembly and replacement.

[0105] The second mounting plate 85 is annular, the inner side of the second mounting plate 85 is connected to the second connecting sleeve 75, and the outer side is in sliding contact with the inner wall of the housing 71; the second filter screen 91 is fan-shaped, and multiple second filter screens 91 are adsorbed on the second mounting plate 85 by magnets, which facilitates disassembly and replacement. In this embodiment, there are two second filter screens 91 in a fan shape (the angle of the fan is 160°).

[0106] In order to facilitate the exhaust gas to pass through the second filter 91, the second mounting plate 85 is provided with a plurality of second through holes 851, and a plurality of first fan-shaped elastic sheets 853 are arranged in a circular array in the second through hole 851. The non-arc edges of two adjacent first fan-shaped elastic sheets 853 can contact or separate with each other due to the change of air pressure, thereby realizing the opening and closing of the second through hole 851. That is, these first fan-shaped elastic sheets 853 together constitute the aforementioned first valve structure 852. Based on this first valve structure 852, when the first air hole 731 is opened, since the gas can enter the first air hole 731, the air pressure is low and it is not easy to push open the first fan-shaped elastic sheet 853, and the first valve structure 852 is also in a closed state; when the first air hole 731 is closed, since the gas cannot enter the first air hole 731, the air pressure rises and pushes open the first fan-shaped elastic sheet 853, and the first valve structure 852 is also in an open state.

[0107] The third mounting plate 86 is annular, the inner side of the third mounting plate 86 is connected to the third connecting sleeve 76, and the outer side is in sliding contact with the inner wall of the housing 71; the adsorption net 92 is fan-shaped, and multiple adsorption nets 92 are adsorbed on the third mounting plate 86 by magnets, which facilitates disassembly and replacement. In this embodiment, there are two adsorption nets 92 in a fan shape (the angle of the fan is 160°).

[0108] In order to facilitate the exhaust gas to pass through the adsorption net 92, the third mounting plate 86 has a plurality of third through holes 861, and a plurality of second fan-shaped elastic sheets are arranged in a circular array in the third through hole 861. The non-arc edges of two adjacent second fan-shaped elastic sheets can contact or separate with each other due to the change of air pressure, thereby realizing the opening and closing of the third through hole 861. That is, these second fan-shaped elastic sheets together constitute the aforementioned second valve structure 862. Based on this second valve structure 862, when the first air hole 731 is closed and the second air hole 732 is opened, the gas cannot enter the first air hole 731. As the air pressure increases, the first fan-shaped elastic sheet 853 is pushed open, and the first valve structure 852 is also in an open state. The exhaust gas passes through the second filter 91 and enters the second air hole 732; when the first air hole 731 is closed and the second air hole 732 is closed, the gas cannot enter the first air hole 731 and the first air hole 731, and the first valve structure 852 and the first valve structure 852 are opened as the exhaust gas pressure increases.

[0109] In order to facilitate connecting the first connecting sleeve 74, the second connecting sleeve 75 and the third connecting sleeve 76 in series by connecting parts such as bolts, the first mounting plate 84, the second mounting plate 85 and the third mounting plate 86 all have connecting holes 842, and the connecting holes 842 are equipped with longer bolts. The bolts pass through multiple connecting holes 842 to connect the first mounting plate 84, the second mounting plate 85 and the third mounting plate 86 in series.

[0110] In combination with the above, when it is necessary to replace the first filter screen 72, the second filter screen 91 and / or the adsorption screen 92, firstly, the electromagnetic valve is powered off, so that the first filter screen 72, the second filter screen 91 and the adsorption screen 92 return to the initial position and align with the notch 714, then the sealing door 715 is opened, and the first mounting plate 84, the second mounting plate 85 and the third mounting plate 86 are rotated, so that the fan-shaped first filter screen 72, the second filter screen 91 and / or the adsorption screen 92 are aligned with the notch 714, and then the disassembly and replacement operation can be completed quickly. In addition, since the first mounting plate 84, the second mounting plate 85 and the third mounting plate 86 are connected by bolts, the rotation of the three is carried out simultaneously. Through this arrangement, after the first mounting plate 84 and the first filter screen 72 are rotated once, the second filter screen 91 and the adsorption screen 92 are also rotated once, which is convenient for replacing the second filter screen 91 and the adsorption screen 92 while replacing the first filter screen 72, and reducing the number of adjustments.

[0111] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. In the absence of conflicts, the embodiments of the present application and the features in the embodiments may be arbitrarily combined with each other. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A waste gas treatment device, characterized in that: include: A housing having an air inlet and an air outlet that are communicable with each other; A first filter screen is arranged on a communication path between the air inlet and the air outlet; An electric treatment box is provided with an anode and a cathode at intervals therein; the electric treatment box is also provided with: A through-the-wall porcelain bottle, comprising an insulator, wherein a plurality of the through-the-wall porcelain bottles are connected in series to form a hollow structure having a central channel; the cathode is arranged on the top of the through-the-wall porcelain bottle, the cathode is connected to a cathode discharge wire, the cathode discharge wire is introduced into the central channel from the bottom of the through-the-wall porcelain bottle, and the bottom of the through-the-wall porcelain bottle can be inserted into the porcelain bottle fixing device; A porcelain bottle fixing device, connected with an anode discharge wire and used for fixing the through-wall porcelain bottle; An insulating cover is installed on the porcelain bottle fixing device, and the through-wall porcelain bottle is located in the insulating cover; the insulating cover has a purification channel for exhaust gas to flow, and the electric field between the cathode and the anode is located in the purification channel; Wherein, the exhaust gas can first pass through the first filter and then enter the electrical processing box through the air outlet; a forced evaporation fan is arranged on the insulating cover.

2. The exhaust gas treatment equipment according to claim 1, characterized in that: The porcelain bottle fixing device comprises a metal bottom plate, and the metal bottom plate is connected to the anode discharge wire.

3. The exhaust gas treatment equipment according to claim 2, characterized in that: The metal bottom plate is provided with a guard plate around its periphery, and the guard plate and the metal bottom plate together form a groove; The insulating cover is plugged into the groove; four insulating pillars are respectively arranged at the four corners of the groove, and the four insulating pillars are in pressure contact with the inner wall of the insulating cover.

4. The exhaust gas treatment equipment according to claim 1, characterized in that: It also includes a second filter screen and an adsorption screen. The mesh number of the second filter screen is greater than the mesh number of the first filter screen. The adsorption screen is used to adsorb harmful gases in the exhaust gas. The exhaust gas can flow through the first filter screen, the second filter screen and the adsorption screen in sequence.

5. The exhaust gas treatment equipment according to claim 4, characterized in that: Also includes: A support tube is transversely arranged in the shell, one end of which extends outside the shell and is rigidly connected to the inlet end of the electrical processing box; the support tube has a first air hole and a second air hole, the first air hole is located between the first filter screen and the second filter screen, and the second air hole is located between the second filter screen and the adsorption screen; A first connecting sleeve is slidably mounted on the supporting tube in a transverse manner; the first filter screen is connected to the first connecting sleeve; an extension portion is connected to one end of the first connecting sleeve close to the second filter screen, and the extension portion or the first connecting sleeve can block the first air hole; a second connecting sleeve, which can be slidably sleeved on the supporting tube in a transverse direction; the second filter screen is connected to the second connecting sleeve; a first valve structure for preventing or allowing exhaust gas to pass through the second filter screen is provided on a side of the second filter screen facing the air inlet; the second connecting sleeve can block the second air hole; a third connecting sleeve, which is sleeved on the supporting tube; the adsorption net is connected to the third connecting sleeve; a second valve structure for preventing or allowing exhaust gas to pass through the adsorption net is provided on a side of the adsorption net facing the air inlet; Wherein, in the process of moving the first connecting sleeve and the second connecting sleeve left and right, the first air hole and the second air hole can be opened or closed; When the first air hole and the second air hole are both opened and the first valve structure is closed, the flow path of the exhaust gas is to flow through the air inlet, the first filter, the first air hole, the support pipe and the purification channel in sequence, which is the first flow path; When the first air hole is closed and the second air hole is opened, and the first valve structure is opened and the second valve structure is closed, the flow path of the exhaust gas is to flow through the air inlet, the first filter screen, the second filter screen, the second air hole, the support pipe and the purification channel in sequence, which is the second flow path; When the first air hole and the second air hole are both closed and the first valve structure and the second valve structure are opened, the flow path of the exhaust gas is to flow through the air inlet, the first filter, the second filter, the adsorption net, the air outlet and the purification channel in sequence, which is the third flow path.

6. The exhaust gas treatment equipment according to claim 5, characterized in that: The third connecting sleeve can be slidably sleeved on the supporting tube in a transverse manner, and the first connecting sleeve, the second connecting sleeve and the third connecting sleeve are connected by bolts; and further comprising: An electromagnet, arranged on the right inner wall of the housing; An iron ring, located on the left side of the electromagnet and connected to the right end of the third connecting sleeve, the iron ring is used in conjunction with the electromagnet; A spring, one end of which is connected to the left inner wall of the housing, and the other end of which is connected to the left end of the first connecting sleeve; Among them, when the exhaust gas flows along the first flow path, the electromagnet is de-energized, and the first filter is located at the leftmost end of the path when it moves left and right; when the exhaust gas flows along the second flow path, the electromagnet is passed with current A1; when the exhaust gas flows along the third flow path, the electromagnet is passed with current A2, A2 is greater than A1, and the first filter is located at the rightmost end of the path when it moves left and right.

7. The exhaust gas treatment equipment according to claim 6, characterized in that: It is detected whether there is attachment on the insulator and the current of the electromagnet is adjusted according to the volume of the attachment to switch the flow path of the exhaust gas.

8. The exhaust gas treatment equipment according to claim 7, characterized in that: When it is detected that there is attachment on the insulator or the exhaust gas flow rate in the purification channel is lower than the lower limit, the power of the forced evaporation fan is first increased. If it is still not restored or improved, the electromagnet is cycled multiple times to perform the following process while the equipment continues to purify the exhaust gas: the electromagnet is first passed with current A2 and then powered off.

9. The exhaust gas treatment equipment according to any one of claims 5 to 8, characterized in that: The lower side of the shell is provided with a notch, the notch is provided with an openable and closable sealing door, the first filter screen, the second filter screen and the adsorption screen can all be aligned with the notch; and further comprising: The first mounting plate is annular, and its inner side is connected to the first connecting sleeve, and its outer side is in sliding contact with the inner wall of the shell; the first mounting plate is provided with a plurality of first through holes; the first filter screen is fan-shaped, and a plurality of the first filter screens are adsorbed on the first mounting plate by magnets.

10. The exhaust gas treatment equipment according to claim 9, characterized in that: Also includes: The second mounting plate is annular, the inner side of which is connected to the second connecting sleeve, and the outer side is in sliding contact with the inner wall of the shell; the second filter screen is fan-shaped, and a plurality of the second filter screens are adsorbed on the second mounting plate by magnets; the second mounting plate is provided with a plurality of second through holes, and a plurality of first fan-shaped elastic sheets are arranged in a circular array in the second through holes, and the non-arc edges of two adjacent first fan-shaped elastic sheets can contact or separate with each other due to changes in air pressure; The third mounting plate is annular, and its inner side is connected to the third connecting sleeve, and its outer side is in sliding contact with the inner wall of the shell; the adsorption net is fan-shaped, and multiple adsorption nets are adsorbed on the third mounting plate by magnets; the third mounting plate is provided with a plurality of third through holes, and a plurality of second fan-shaped elastic sheets are arranged in an annular array inside the third through holes, and the non-arc edges of two adjacent second fan-shaped elastic sheets can contact or separate from each other due to changes in air pressure.

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