Exhaust gas treatment device

Abstract

The utility model discloses an exhaust gas treatment device which comprises a mounting rack, a first-stage filtering bin and a second-stage filtering bin are fixedly mounted at the top of the mounting rack, a sealing top cover is hinged to the top of the first-stage filtering bin, a plurality of filtering plates are clamped in the first-stage filtering bin, and the second-stage filtering bin is hinged to the sealing top cover. A static electricity generating mechanism is fixedly mounted at the top of the secondary filtering bin, and a plurality of static electricity plates matched with the static electricity generating mechanism are fixedly mounted in the secondary filtering bin. According to the exhaust gas treatment device, VOCs waste gas is guided into the device along one end of the first-stage filtering bin, large-particle dust in the waste gas is filtered through multiple sets of filtering plates in the first-stage filtering bin, fine dust in the waste gas is adsorbed through an electrostatic plate in the second-stage filtering bin, dust in the VOCs waste gas is subjected to multi-stage filtering, and the dust in the VOCs waste gas is filtered through multiple sets of filtering plates in the second-stage filtering bin. The content of dust in the waste gas is reduced, and the follow-up treatment speed of the VOCs waste gas is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to an exhaust gas treatment device. Background Art

[0002] Waste gas treatment equipment mainly refers to an environmental protection equipment that uses different process technologies to recycle or remove and reduce harmful components in exhaust gas to protect the environment and purify the air. VOCs gas is generally absorbed by low-volatile or non-volatile solvents, and then separated by the difference in physical properties of VOCs and absorbents. The gas containing VOCs enters the tower from the bottom of the absorption tower, and contacts with the absorbent from the top of the tower in countercurrent during the rising process. The purified gas is discharged from the top of the tower.

[0003] At present, before treating VOCs waste gas, it is necessary to dry filter the VOCs waste gas first. For example, patent No. CN202122120312.4 discloses a VOCs waste gas treatment device and a VOCs waste gas treatment system, which are provided with a primary filter bin, a secondary filter bin, a filter plate, an electrostatic plate, a fan bin, a motor, a fan blade and other structures. The VOCs waste gas is filtered in multiple stages by combining the filter plate with the electrostatic plate. After long-term use, the electrostatic plate is disconnected from the power supply, and the dust can automatically fall into the inner bottom of the secondary filter bin. The motor in the fan bin drives the fan blade to rotate, and the dust in the secondary filter bin can be blown out, so as to clean the dust in the secondary filter bin and the electrostatic plate. The electrostatic plate is powered off and combined with the fan to blow out most of the dust in the secondary filter bin. However, since the dust itself has a certain adsorption effect, a small amount of dust may still adhere to the surface of the electrostatic plate after cleaning, affecting the subsequent adsorption effect of the electrostatic plate on the dust. For this reason, we propose an exhaust gas treatment device to solve the above problems. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides an exhaust gas treatment device, which solves the problems raised in the above background technology.

[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] The utility model provides an exhaust gas treatment device, comprising a mounting frame, a primary filter bin and a secondary filter bin are fixedly mounted on the top of the mounting frame, a sealing top cover is hinged on the top of the primary filter bin, a plurality of filter plates are clamped inside the primary filter bin, and an electrostatic generating mechanism is fixedly mounted on the top of the secondary filter bin;

[0007] A plurality of electrostatic plates cooperating with the electrostatic generating mechanism are fixedly installed inside the secondary filter bin, a driving motor is fixedly installed at one end of the secondary filter bin, and a primary air duct is fixedly connected to the output shaft of the driving motor; a secondary air duct cooperating with the electrostatic plate is fixedly installed on the primary air duct, a plurality of air outlet holes are provided on the secondary air duct, a dust collecting hopper is fixedly installed at the bottom of the secondary filter bin, two groups of air manifolds are fixedly connected to the outside of the primary filter bin, and an air pump cooperating with the primary air duct is fixedly installed on the mounting frame.

[0008] Preferably, a slot cooperating with the filter plate is provided inside the primary filter bin.

[0009] Preferably, a pressure sensor is fixedly mounted on the sealing top cover, and the pressure sensor is located on a side of the sealing top cover close to the secondary filter bin, and the air guide manifold on one side of the secondary filter bin is fixedly connected to the primary filter bin.

[0010] Preferably, the first-level air duct is movably mounted in the middle of the electrostatic plate, a rotating connector is provided at one end of the first-level air duct, and a gas hose is fixedly connected to one end of the rotating connector, and the end of the gas hose away from the rotating connector is fixedly connected to the air outlet of the air pump.

[0011] Preferably, the air outlet holes are located in groups of two on both sides of the electrostatic plate, and the air outlet holes are located on a side of the secondary air guide tube close to the electrostatic plate.

[0012] Preferably, air pipe solenoid valves are fixedly installed on the outside of the two groups of air guide manifolds, and the air pipe solenoid valves can control the on and off of the air guide manifolds.

[0013] Preferably, the dust collecting hopper is a funnel-shaped structure as a whole, and a drain valve is fixedly connected to the bottom end of the dust collecting hopper.

[0014] The utility model provides an exhaust gas treatment device, which has the following beneficial effects:

[0015] The exhaust gas treatment device introduces VOCs waste gas into the device along one end of the primary filter bin, filters large particles of dust in the waste gas through multiple groups of filter plates in the primary filter bin, and adsorbs fine dust in the waste gas through electrostatic plates in the secondary filter bin, performs multi-stage filtration on the dust in the VOCs waste gas, reduces the dust content in the waste gas, and increases the speed of subsequent treatment of the VOCs waste gas.

[0016] The exhaust gas treatment device closes the electrostatic plate to discharge the dust on the electrostatic plate along the dust collecting hopper, starts the air pump to introduce air flow along the air delivery hose to the primary air duct and the secondary air duct, and sprays it along the air outlet, and at the same time drives the primary air duct and the secondary air duct to rotate through the driving motor to spray and clean both sides of the electrostatic plate, thereby improving the cleaning effect of the electrostatic plate and ensuring the subsequent dust adsorption effect of the electrostatic plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model after overall assembly;

[0018] Figure 2 It is a schematic diagram of the structure of the back side of the utility model as a whole;

[0019] Figure 3 This is a structural schematic diagram of the first-level filter bin of the utility model;

[0020] Figure 4 This is a structural schematic diagram of the cross section of the secondary filter bin of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the first-level air guide tube of the utility model;

[0022] Figure 6 It is a schematic diagram of the structure of the exterior of the secondary filter bin of the utility model.

[0023] In the figure: 1. Installation frame; 2. Primary filter chamber; 3. Secondary filter chamber; 4. Sealing top cover; 5. Filter plate; 6. Pressure sensor; 7. Electrostatic plate; 8. Electrostatic generating mechanism; 9. Dust hopper; 10. Driving motor; 11. Primary air duct; 12. Secondary air duct; 13. Air outlet; 14. Rotating connector; 15. Air pump; 16. Air hose; 17. Air manifold; 18. Air pipe solenoid valve. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] See also Figure 1 , Figure 2 The utility model provides an exhaust gas treatment device, including a mounting frame 1, a primary filter bin 2 and a secondary filter bin 3 are fixedly mounted on the top of the mounting frame 1, and a sealing top cover 4 is hinged on the top of the primary filter bin 2;

[0026] A plurality of filter plates 5 are connected to the interior of the primary filter chamber 2, and an electrostatic generating mechanism 8 is fixedly installed on the top of the secondary filter chamber 3;

[0027] Several electrostatic plates 7 cooperating with the electrostatic generating mechanism 8 are fixedly installed inside the secondary filter chamber 3. Large particles of dust in the exhaust gas are filtered through the multiple groups of filter plates 5 in the primary filter chamber 2, and fine dust in the exhaust gas is adsorbed by the electrostatic plates 7 in the secondary filter chamber 3, so that the dust in the VOCs exhaust gas is filtered in multiple stages; it should be explained that the electrostatic plates 7 and the electrostatic generating mechanism 8 are currently common existing technologies, a driving motor 10 is fixedly installed at one end of the secondary filter chamber 3, and a primary air guide pipe 11 is fixedly connected to the output shaft of the driving motor 10;

[0028] At the same time, a secondary air duct 12 that cooperates with the electrostatic plate 7 is fixedly installed on the primary air duct 11, and a plurality of air outlets 13 are opened on the secondary air duct 12; when the purification process is specifically performed, the gas is ejected along the air outlets 13 on the secondary air duct 12, and the surface of the electrostatic plate 7 can be cleaned, and the cleaning effect of the electrostatic plate 7 is improved, and the subsequent dust adsorption effect of the electrostatic plate 7 is guaranteed. At the same time, a dust collecting hopper 9 is fixedly installed at the bottom of the secondary filter bin 3, and two sets of air manifolds 17 are fixedly connected to the outside of the primary filter bin 2, and an air pump 15 that cooperates with the primary air duct 11 is fixedly installed on the mounting frame 1. When the air pump 15 is started, the air flow is introduced into the primary air duct 11 and the secondary air duct 12 along the air delivery hose 16, and ejected along the air outlets 13; at the same time, the primary air duct 11 and the secondary air duct 12 are driven by the driving motor 10 to rotate, and the two sides of the electrostatic plate 7 are ejected and cleaned, and the cleaning effect of the electrostatic plate 7 is improved. The air pump 15 is a common existing technology at present.

[0029] See also Figure 3 In the specific technical scheme of the embodiment of the utility model, a card slot is provided inside the primary filter chamber 2 to cooperate with the filter plate 5, and the filter plate 5 is restricted by the card slot to ensure the stability of the filter plate 5 when working. In the above technical scheme, the number of the filter plates 5 is 3-6 groups, and the large particles of dust in the exhaust gas are filtered by multiple groups of filter plates 5, which is convenient for the subsequent rapid treatment of the exhaust gas.

[0030] See also Figure 4 , 56. In the specific technical scheme of the embodiment of the utility model, a pressure sensor 6 is fixedly installed on the sealing top cover 4. The pressure sensor 6 is a common existing technology at present, and the pressure sensor 6 is located on the side of the sealing top cover 4 close to the secondary filter bin 3. The air guide manifold 17 on one side of the secondary filter bin 3 is fixedly connected to the primary filter bin 2, and the pressure of the rear section of the primary filter bin 2 is detected by the pressure sensor 6; when the pressure of the pressure sensor 6 decreases to a certain value, it indicates that there is a lot of dust on the filter plate 5, and the pressure value can be used to indirectly reflect whether the filter plate 5 needs to be cleaned. The primary air guide pipe 11 is movably sleeved in the middle of the electrostatic plate 7, and a rotating connector 14 is provided at one end of the primary air guide pipe 11, and a gas hose 16 is fixedly connected to one end of the rotating connector 14. The connection is made by rotating the connector 14 to ensure that the secondary air guide pipe 12 is still in a connected state with the gas hose 16 while rotating, so as to supply gas to the primary air guide pipe 11, and the end of the gas hose 16 away from the rotating connector 14 is fixedly connected to the air outlet of the air pump 15.

[0031] Start the air pump 15 to introduce air flow along the air hose 16 to the secondary air duct 12 and the air outlet 13, so as to clean the surface of the electrostatic plate 7. The air outlet 13 is located on both sides of the electrostatic plate 7 in groups of two, and the air outlet 13 is located on the side of the secondary air duct 12 close to the electrostatic plate 7. Then the gas is ejected along the air outlet 13 on the secondary air duct 12, so as to clean the surface of the electrostatic plate 7, thereby improving the cleaning effect of the electrostatic plate 7 and ensuring the subsequent dust adsorption effect of the electrostatic plate 7.

[0032] See also Figure 6 In the specific technical scheme of the embodiment of the utility model, the outside of the two sets of air guide manifolds 17 are fixedly installed with air pipe solenoid valves 18, and the air pipe solenoid valves 18 can control the on and off of the air guide manifolds 17. When cleaning the dust inside the secondary filter bin 3, the two sets of air guide manifolds 17 can be closed by the air pipe solenoid valves 18 to prevent dust from being discharged along the two sets of air guide manifolds 17. The dust hopper 9 is a funnel-shaped structure as a whole, which is convenient for centralized collection of dust.

[0033] The bottom end of the dust hopper 9 is fixedly connected with a drain valve, and the drain valve can be used to control the on and off of the bottom of the dust hopper 9 to facilitate the discharge of dust. At the same time, a dust filter bag can be set at the outlet of the drain valve to collect dust when discharging dust.

[0034] In summary, when the exhaust gas treatment device is in use, the VOCs waste gas is introduced into the first-stage filter chamber 2 along one end of the first-stage filter chamber 2, and the large particles of dust in the VOCs waste gas are filtered through the multiple filter plates 5 inside the first-stage filter chamber 2. The VOCs waste gas filtered by the first-stage filter chamber 2 enters the second-stage filter chamber 3 along the air manifold 17 on one side of the second-stage filter chamber 3, and the electrostatic generating mechanism 8 controls the electrostatic plate 7 to generate static electricity, and the dust in the VOCs waste gas is adsorbed again by the electrostatic plate 7. The VOCs waste gas after two-stage treatment is discharged along the air manifold 17 on the other side of the second-stage filter chamber 3.

[0035] The pressure of the rear section of the filter plate 5 is detected by the pressure sensor 6. When the pressure detected by the pressure sensor 6 decreases to a certain value, the surface of the surface filter plate 5 is clogged with dust, and the sealing top cover 4 is opened to clean the multiple filter plates 5. At the same time, when cleaning the filter plate 5, the static electricity generating mechanism 8 and the static electricity plate 7 are turned off, the air pipe solenoid valve 18 on the two sets of air guide manifolds 17 are turned off, and the drain valve on the dust hopper 9 is opened. The dust on the static electricity plate 7 is discharged along the dust hopper 9, and the air pump 15 is started. The air flow is introduced into the primary air guide pipe 11 and the secondary air guide pipe 12 along the air delivery hose 16, and sprayed out along the air outlet 13. At the same time, the primary air guide pipe 11 and the secondary air guide pipe 12 are driven by the driving motor 10 to rotate, and the two sides of the static electricity plate 7 are sprayed and cleaned, and the surface of the static electricity plate 7 is fully cleaned.

[0036] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating positions or positional relationships are based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operate in a specific position, and therefore cannot be understood as limiting the present invention;

[0037] The terms "first", "second" and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An exhaust gas treatment device, comprising a mounting frame (1), a primary filter chamber (2) and a secondary filter chamber (3) being fixedly mounted on the top of the mounting frame (1), characterized in that: A sealing top cover (4) is hingedly connected to the top of the primary filter bin (2), a plurality of filter plates (5) are clamped inside the primary filter bin (2), and an electrostatic generating mechanism (8) is fixedly installed on the top of the secondary filter bin (3); A plurality of electrostatic plates (7) cooperating with an electrostatic generating mechanism (8) are fixedly installed inside the secondary filtering chamber (3); a driving motor (10) is fixedly installed at one end of the secondary filtering chamber (3); and a primary air guide pipe (11) is fixedly connected to the output shaft of the driving motor (10); A secondary air guide pipe (12) cooperating with the electrostatic plate (7) is fixedly mounted on the primary air guide pipe (11), and a plurality of air outlet holes (13) are provided on the secondary air guide pipe (12); a dust collecting hopper (9) is fixedly mounted on the bottom of the secondary filter bin (3), two groups of air guide manifolds (17) are fixedly connected to the outside of the primary filter bin (2), and an air pump (15) cooperating with the primary air guide pipe (11) is fixedly mounted on the mounting frame (1).

2. An exhaust gas treatment device according to claim 1, characterized in that: The first-level filter chamber (2) is provided with a slot inside thereof which cooperates with the filter plate (5).

3. The exhaust gas treatment device according to claim 1, characterized in that: A pressure sensor (6) is fixedly mounted on the sealing top cover (4), and the pressure sensor (6) is located on a side of the sealing top cover (4) close to the secondary filter chamber (3), and the air guide manifold (17) on one side of the secondary filter chamber (3) is fixedly connected to the primary filter chamber (2).

4. The exhaust gas treatment device according to claim 1, characterized in that: The primary air guide tube (11) is movably mounted on the middle part of the electrostatic plate (7); a rotating connector (14) is provided at one end of the primary air guide tube (11); and a gas delivery hose (16) is fixedly connected to one end of the rotating connector (14); and one end of the gas delivery hose (16) away from the rotating connector (14) is fixedly connected to the gas outlet of the air pump (15).

5. The exhaust gas treatment device according to claim 1, characterized in that: The air outlet holes (13) are located in groups of two on both sides of the electrostatic plate (7), and the air outlet holes (13) are located on one side of the secondary air guide pipe (12) close to the electrostatic plate (7).

6. The exhaust gas treatment device according to claim 1, characterized in that: Air pipe solenoid valves (18) are fixedly installed outside the two groups of air guide manifolds (17), and the air pipe solenoid valves (18) can control the on and off of the air guide manifolds (17).

7. The exhaust gas treatment device according to claim 1, characterized in that: The dust collecting hopper (9) is a funnel-shaped structure as a whole, and a sewage valve is fixedly connected to the bottom end of the dust collecting hopper (9).

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