Diesel engine tail gas particulate matter purification equipment

Abstract

The invention discloses diesel engine tail gas particulate matter purification equipment, and relates to the technical field of tail gas purification. The diesel engine tail gas particulate matter purification equipment comprises a purification box and a particulate matter treatment mechanism, an air outlet pipe is installed on the side of the top of the purification box, an air inlet mechanism is installed at the end, away from the air outlet pipe, of the top of the purification box, and the particulate matter treatment mechanism comprises a volute shell and a flow guide assembly; the top of the volute shell and the side of the top of an inner cavity of the purification box are fixedly installed, the flow guide assembly is installed at an air outlet in the surface of the volute shell, a first rectangular hole is formed in the bottom of the volute shell, and a drainage plate is fixedly connected to the side of the inner cavity of the volute shell; a first warped plate, a second warped plate and a third warped plate are sequentially and fixedly mounted at the bottom of the inner cavity of the volute shell and close to the first rectangular hole, so that the purpose of uniform purification is achieved, gas-liquid contact is enhanced, uniform purification is facilitated, residues are not prone to occurring, the purification effect is good, and safety and reliability are achieved.

Description

Technical Field

[0001] This invention relates to the field of exhaust gas purification technology, specifically to a diesel engine exhaust particulate matter purification device. Background Technology

[0002] Diesel engine exhaust emissions have become a key focus of environmental protection engineering. Nitrogen oxides and particulate matter are the main pollutants in diesel engine exhaust. Catalytic reduction technology is the mainstream method for treating nitrogen oxides. By injecting a solution into the exhaust gas, ammonia gas is generated as a reducing agent, converting nitrogen oxides into harmless nitrogen and water, reducing environmental pollution and benefiting human health. Therefore, diesel engine exhaust treatment is necessary.

[0003] Currently, in existing diesel engine exhaust purification methods, the reaction reagents remain stationary, resulting in short contact time between the exhaust gas and the reaction reagents. This causes residual harmful gases to escape, affecting the overall purification effect of the exhaust gas. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention is implemented through the following technical solution:

[0005] A diesel engine exhaust particulate matter purification device, comprising:

[0006] A purification box, and a drain pipe installed at the bottom of the purification box, an air outlet pipe installed on the side of the top of the purification box, and an air inlet mechanism installed at the top of the purification box and at the end away from the air outlet pipe.

[0007] A particulate matter treatment mechanism is used to purify diesel engine exhaust gas, and the particulate matter treatment mechanism is installed in the middle of the inner cavity of the purification box.

[0008] The particulate matter treatment mechanism includes a volute housing and a flow guiding assembly. The top of the volute housing is fixedly installed on the side of the top of the inner cavity of the purification chamber. The flow guiding assembly is installed at the air outlet on the surface of the volute housing. A first rectangular hole is opened at the bottom of the volute housing. A flow guide plate is fixedly connected to the side of the inner cavity of the volute housing. A first rocker plate, a second rocker plate, and a third rocker plate are sequentially fixedly installed at the bottom of the inner cavity of the volute housing near the first rectangular hole. Under the guidance of the flow guide plate, the diesel engine exhaust gas is blown towards the bottom of the inner cavity of the volute housing. The reaction reagent in the inner cavity of the purification chamber enters the interior of the volute housing through the first rectangular hole, so that the exhaust gas can fully contact the reaction reagent, thereby absorbing the particulate matter carried in the exhaust gas and treating the particulate impurities.

[0009] Preferably, there are three first rectangular holes, and the three first rectangular holes are evenly distributed at the bottom of the volute shell. The guide plate is arc-shaped, and the first, second, and third rocker plates are all arc-shaped. The first and second rocker plates are located in the reaction reagent inside the purification chamber. With the guide plate guiding the exhaust gas, and under the guidance of the first, second, and third rocker plates, the exhaust gas blows the reaction reagent upward and rolls it up, causing bubbles to rise and increasing the contact time between the exhaust gas and the reaction reagent. The repeated rolling and falling of the reaction reagent can increase the contact area between the exhaust gas and the reaction reagent, thereby helping to uniformly purify the exhaust gas and reduce the emission of harmful gases.

[0010] By utilizing the first rectangular hole at the bottom, particulate impurities will fall down from the first rectangular hole. Furthermore, the first, second, and third rocker plates are arc-shaped, which can block the first rectangular hole, making it difficult for particulate impurities to flow back.

[0011] Preferably, the airflow guiding assembly includes an airflow guide hood and a T-shaped plate. The airflow guide hood is fixedly installed at the air outlet on the surface of the volute housing. The top of the T-shaped plate is fixedly installed to the middle of the top of the purification chamber cavity by screws. An air outlet bucket is installed at the bottom of the airflow guide hood. The opening of the air outlet bucket faces upward. A second rectangular hole is opened at the bottom of the air outlet bucket. As the airflow exits from the air outlet of the volute housing, it is guided by the airflow guide hood to drift out from the air outlet bucket. The opening of the air outlet bucket gradually increases from bottom to top, which slows down the gas flow and plays a role in slowing down the flow, thereby facilitating the subsequent spraying treatment of the gas.

[0012] Preferably, the air outlet, the flow guide, and the volute are connected, and the second rectangular holes are evenly distributed at the bottom of the air outlet.

[0013] Preferably, the air intake mechanism includes a support cylinder and a connecting cylinder. The top and bottom of the support cylinder are fixedly installed to the top of the purification box and the end away from the air outlet pipe by screws. The support cylinder is installed directly above the air inlet on the top of the volute housing. The connecting cylinder is detachably fixedly installed on the top of the support cylinder. A first washer is installed on the top of the connecting cylinder. A second washer is installed between the bottom of the support cylinder and the top of the purification box. An opening and closing assembly is installed between the inner cavity of the support cylinder and the inner cavity of the connecting cylinder.

[0014] Preferably, the connecting cylinder is installed directly above the support cylinder, the first washer and the second washer are both made of rubber, and the inner cavities of the support cylinder and the connecting cylinder are both conical.

[0015] Preferably, the opening and closing assembly includes a double-headed conical elastic cylinder, which is installed between the inner cavity of the support cylinder and the inner cavity of the connecting cylinder. A first sealing ring is fixedly connected to the conical surface at the bottom of the double-headed conical elastic cylinder, and a second sealing ring is fixedly connected to the conical surface at the top of the double-headed conical elastic cylinder. A tension spring is fixedly connected to the middle of the inner cavity of the double-headed conical elastic cylinder, and a conical sealing block is fixedly connected to the bottom end of the tension spring. The second gasket is squeezed by the support cylinder, so that the second gasket fits tightly with the top of the support cylinder and the purification box, and the first gasket seals the top of the connecting cylinder. At the same time, the clamping force between the support cylinder and the connecting cylinder compresses the double-headed conical elastic cylinder, and compresses the first and second sealing rings, thereby sealing the connection and preventing leakage.

[0016] Preferably, the axis at the center of the double-headed conical elastic cylinder coincides with the central axis at the middle of the support cylinder and the central axis at the middle of the connecting cylinder. The conical surface on the outer side of the conical sealing block fits into the inner cavity of the support cylinder. As the exhaust gas pressure applies a blowing force to the conical sealing block, the conical sealing block moves downward and the tension spring is stretched. By disengaging the conical sealing block from the inner cavity of the support cylinder, the interior of the support cylinder can be opened, allowing the exhaust gas to flow smoothly.

[0017] When the exhaust gas stops being delivered, the blowing force of the exhaust gas on the conical sealing block disappears, and under the elastic tension of the tension spring, the conical sealing block moves upward and embeds into the inside of the support cylinder, thus sealing the support cylinder and preventing the exhaust gas from flowing back, thereby playing a check valve function.

[0018] Preferably, a spraying mechanism is installed at the top of the inner cavity of the purification chamber, away from the volute shell. The spraying mechanism includes a circular track and a pump body. The circular track is fixedly installed at the top of the inner cavity of the purification chamber and directly below the air outlet pipe. The pump body is fixedly installed on the side of the surface of the purification chamber. A bent pipe is connected to the liquid outlet at the top of the pump body. The top end of the bent pipe penetrates the surface of the purification chamber and extends into its interior. A rotating connector is installed at the liquid outlet at the top of the bent pipe. A cross-shaped nozzle is installed at the bottom of the rotating connector. A ball bearing is rolled at the end of the cross-shaped nozzle. A trumpet-shaped nozzle is installed on the surface of the cross-shaped nozzle. Using the suction of the pump body, part of the reaction reagent in the purification chamber is drawn out. Under the transport of the bent pipe, the reaction reagent enters the interior of the cross-shaped nozzle. The reaction reagent is sprayed from the trumpet-shaped nozzle onto the gas discharged upward from the air outlet. The reaction reagent is sprayed from top to bottom, while the gas floats from bottom to top. The two move in opposite directions, which facilitates the re-treatment of residual suspended dust and harmful gases in the gas.

[0019] Preferably, the cross-shaped nozzle is connected to the bent pipe, the spherical surface of the ball bearing fits into the inner cavity of the circular track, the horn-shaped nozzles are evenly distributed on the surface of the cross-shaped nozzle, and the horn-shaped nozzles are installed at an angle. As the reaction reagent is sprayed from the horn-shaped nozzle, and combined with the angled installation of the horn-shaped nozzle, the horn-shaped nozzle is subjected to a reverse pushing force from the sprayed reaction reagent through action and reaction forces. The cross-shaped nozzle is rotated and connected to the rotating connector. By utilizing the rolling of the ball bearing, the coefficient of friction is reduced, which allows the cross-shaped nozzle to drive the horn-shaped nozzle to rotate rapidly. The rotary spraying method avoids dead zones.

[0020] This invention provides a diesel engine exhaust particulate matter purification device. It has the following beneficial effects:

[0021] I. This diesel engine exhaust particulate matter purification equipment, under the guidance of the diversion plate, causes the diesel engine exhaust gas to be blown towards the bottom of the volute housing cavity, and the reaction reagent in the purification chamber enters the interior of the volute housing through the first rectangular hole, so that the exhaust gas can fully contact the reaction reagent, thereby absorbing the particulate matter carried in the exhaust gas and treating the particulate impurities.

[0022] II. This diesel engine exhaust particulate matter purification equipment, with the guide plate guiding the exhaust gas, and under the guidance of the first, second and third rocker plates, causes the exhaust gas to blow the reaction reagent upward and roll, causing bubbles to rise, increasing the contact time between the exhaust gas and the reaction reagent. By utilizing the reciprocating rolling and falling of the reaction reagent, the contact area between the exhaust gas and the reaction reagent can be increased, thereby helping to uniformly purify the exhaust gas and reduce the emission of harmful gases.

[0023] Third, the diesel engine exhaust particulate matter purification equipment utilizes the first rectangular hole at the bottom position, where particulate impurities will fall. They fall downwards from the first rectangular hole, and the first, second, and third rocker plates are arc-shaped, which can block the first rectangular hole, making it difficult for particulate impurities to flow back.

[0024] IV. The diesel engine exhaust particulate matter purification equipment, as the airflow is discharged from the outlet of the volute casing, and under the guidance of the guide shroud, the airflow drifts out from the outlet bucket. The opening of the outlet bucket gradually increases from bottom to top, which slows down the gas flow and plays a role in slowing down the flow, thereby facilitating the subsequent spraying treatment of the gas.

[0025] 5. In this diesel engine exhaust particulate matter purification equipment, the second gasket is squeezed by the support cylinder, so that the second gasket is tightly fitted to the support cylinder and the top of the purification box, and the first gasket seals the top of the connecting cylinder. At the same time, the clamping force between the support cylinder and the connecting cylinder is used to squeeze the double-headed conical elastic cylinder, and squeeze the first sealing ring and the second sealing ring, thereby sealing the connection and making it less likely to leak.

[0026] VI. In this diesel engine exhaust particulate matter purification equipment, when the exhaust gas stops being transported, the blowing force of the exhaust gas on the conical sealing block disappears, and under the elastic tension of the tension spring, the conical sealing block moves upward and embeds into the inside of the support cylinder, thus sealing the support cylinder and preventing the exhaust gas from flowing back, thereby playing a backflow prevention role.

[0027] 7. This diesel engine exhaust particulate matter purification equipment utilizes a reaction reagent that enters the interior of a cross-shaped nozzle. The reaction reagent is sprayed from the horn-shaped nozzle onto the upward-discharged gas from the outlet bucket. The reaction reagent is sprayed from top to bottom, while the gas rises from bottom to top, and the two move in opposite directions, which facilitates the further treatment of residual suspended dust and harmful gases in the gas.

[0028] 8. This diesel engine exhaust particulate matter purification equipment uses action and reaction forces to cause the horn-shaped nozzle to be pushed by the sprayed reaction reagent. The rotating connector connects the cross-shaped nozzle to the rotating nozzle. By using the rolling of the ball bearings, the coefficient of friction is reduced, which allows the cross-shaped nozzle to drive the horn-shaped nozzle to rotate rapidly. The rotating spraying method makes it less likely to have dead angles. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of the diesel engine exhaust particulate matter purification equipment of the present invention;

[0030] Figure 2 This is a schematic diagram of the internal structure of the diesel engine exhaust particulate matter purification device of the present invention.

[0031] Figure 3 This is a schematic diagram of the connection structure between the particulate matter treatment mechanism and the purification box of the present invention;

[0032] Figure 4 This is a schematic diagram of the disassembled structure of the flow guiding component and the volute housing of the present invention;

[0033] Figure 5 This is a schematic diagram of the internal structure of the volute shell cross-section of the present invention;

[0034] Figure 6 This is a schematic diagram of the connection structure between the air intake mechanism and the purification box of the present invention;

[0035] Figure 7 This is a schematic diagram of the internal structure of the support cylinder cross-section of the present invention;

[0036] Figure 8 This is a schematic diagram of the overall disassembled structure of the air intake mechanism of the present invention;

[0037] Figure 9 This is a schematic diagram of the connection structure between the spray mechanism and the purification box of the present invention.

[0038] In the diagram: 1. Purification box; 2. Air inlet mechanism; 3. Air outlet pipe; 4. Sewage pipe; 5. Particulate matter treatment mechanism; 6. Spraying mechanism; 21. Support cylinder; 22. Connecting cylinder; 23. First washer; 24. Second washer; 25. Opening and closing assembly; 251. Double-headed conical elastic cylinder; 252. First sealing ring; 253. Second sealing ring; 254. Tension spring; 255. Conical sealing block; 51. Volute housing; 52. Flow guiding assembly; 53. First rectangular hole; 54. Flow guide plate; 55. First rocker plate; 56. Second rocker plate; 57. Third rocker plate; 521. Flow guide cover; 522. T-shaped plate; 523. Air outlet hopper; 524. Second rectangular hole; 61. Circular track; 62. Pump body; 63. Bent pipe; 64. Rotary connector; 65. Cross-shaped nozzle; 66. Ball bearing; 67. Horn-shaped nozzle. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] For the first embodiment, please refer to... Figure 1-5 The present invention provides a technical solution:

[0041] A diesel engine exhaust particulate matter purification device, comprising:

[0042] Purification box 1, and a drain pipe 4 installed at the bottom of purification box 1, an air outlet pipe 3 installed on the side of the top of purification box 1, and an air inlet mechanism 2 installed on the top of purification box 1 and at the end away from the air outlet pipe 3.

[0043] Particulate matter treatment unit 5 is used to purify diesel engine exhaust gas. Particulate matter treatment unit 5 is installed in the middle of the inner cavity of the purification box 1.

[0044] The particulate matter treatment mechanism 5 includes a volute housing 51 and a flow guiding assembly 52. ​​The top of the volute housing 51 is fixedly installed on the side of the top of the inner cavity of the purification box 1. The flow guiding assembly 52 is installed at the air outlet on the surface of the volute housing 51. A first rectangular hole 53 is opened at the bottom of the volute housing 51. A flow guiding plate 54 is fixedly connected to the side of the inner cavity of the volute housing 51. A first rocker plate 55, a second rocker plate 56, and a third rocker plate 57 are fixedly installed in sequence at the bottom of the inner cavity of the volute housing 51 and near the first rectangular hole 53. When the diesel exhaust gas enters the interior of the volute housing 51, under the guidance of the flow guiding plate 54, the diesel exhaust gas is blown towards the bottom of the inner cavity of the volute housing 51. The reaction reagent in the inner cavity of the purification box 1 enters the interior of the volute housing 51 through the first rectangular hole 53, so that the exhaust gas can fully contact the reaction reagent and absorb the particulate matter carried in the exhaust gas.

[0045] There are three first rectangular holes 53, and the three first rectangular holes 53 are evenly distributed at the bottom of the volute shell 51. The guide plate 54 is arc-shaped, and the first rocker plate 55, the second rocker plate 56 and the third rocker plate 57 are all arc-shaped.

[0046] The first rocker plate 55 and the second rocker plate 56 are located in the reaction reagent inside the purification chamber 1. With the flow guide plate 54 guiding the tail gas, and under the guidance of the first rocker plate 55, the second rocker plate 56 and the third rocker plate 57, the tail gas blows the reaction reagent upward and rolls, causing the bubbles to rise, increasing the contact time between the tail gas and the reaction reagent. The reaction reagent rolls and falls back down, which can increase the contact area between the tail gas and the reaction reagent and promote uniform purification of the tail gas.

[0047] With the first rectangular hole 53 located at the bottom, particulate impurities will fall down from the first rectangular hole 53. Furthermore, the first rocker plate 55, the second rocker plate 56, and the third rocker plate 57 are arc-shaped, which can block the first rectangular hole 53, making it difficult for particulate impurities to flow back.

[0048] The airflow guiding assembly 52 includes an airflow guide shroud 521 and a T-shaped plate 522. The airflow guide shroud 521 is fixedly installed at the air outlet on the surface of the volute housing 51. The top of the T-shaped plate 522 is fixedly installed at the middle of the top of the inner cavity of the purification box 1 by screws. An air outlet 523 is installed at the bottom of the airflow guide shroud 521. The opening of the air outlet 523 faces upward. A second rectangular hole 524 is opened at the bottom of the air outlet 523. As the airflow is discharged from the air outlet of the volute housing 51, under the guidance of the airflow guide shroud 521, the airflow drifts out from the air outlet 523. The opening of the air outlet 523 gradually increases from bottom to top, which slows down the gas flow.

[0049] The air outlet 523, the flow guide 521 and the volute housing 51 are connected, and the second rectangular holes 524 are evenly distributed at the bottom of the air outlet 523.

[0050] The second embodiment is based on the first embodiment; please refer to [link / reference]. Figures 1 to 8 As shown:

[0051] The air intake mechanism 2 includes a support cylinder 21 and a connecting cylinder 22. The top and bottom of the support cylinder 21 are fixedly installed to the top of the purification box 1 and the end away from the air outlet pipe 3 by screws. The support cylinder 21 is installed directly above the air inlet on the top of the volute housing 51. The connecting cylinder 22 is detachably fixedly installed on the top of the support cylinder 21. A first washer 23 is installed on the top of the connecting cylinder 22. A second washer 24 is installed between the bottom of the support cylinder 21 and the top of the purification box 1. An opening and closing assembly 25 is installed between the inner cavity of the support cylinder 21 and the inner cavity of the connecting cylinder 22. The second washer 24 is squeezed by the support cylinder 21, so that the second washer 24 is tightly fitted with the support cylinder 21 and the top of the purification box 1. The first washer 23 seals the top of the connecting cylinder 22. At the same time, the clamping force between the support cylinder 21 and the connecting cylinder 22 is used to squeeze the double-headed conical elastic cylinder 251 and squeeze the first sealing ring 252 and the second sealing ring 253. The connection is sealed and leakage is not likely to occur.

[0052] The connecting cylinder 22 is installed directly above the support cylinder 21. The first washer 23 and the second washer 24 are both made of rubber. The inner cavities of the support cylinder 21 and the connecting cylinder 22 are both conical.

[0053] The opening and closing assembly 25 includes a double-headed conical elastic cylinder 251, which is installed between the inner cavity of the support cylinder 21 and the inner cavity of the connecting cylinder 22. A first sealing ring 252 is fixedly connected to the conical surface at the bottom of the double-headed conical elastic cylinder 251, and a second sealing ring 253 is fixedly connected to the conical surface at the top of the double-headed conical elastic cylinder 251. A tension spring 254 is fixedly connected to the middle of the inner cavity of the double-headed conical elastic cylinder 251, and a conical sealing block 255 is fixedly connected to the bottom end of the tension spring 254.

[0054] As the exhaust gas pressure applies a blowing force to the conical sealing block 255, the conical sealing block 255 moves downward, and the tension spring 254 is stretched. By disengaging the conical sealing block 255 from the inner cavity of the support cylinder 21, the interior of the support cylinder 21 can be opened, allowing the exhaust gas to flow smoothly. When the exhaust gas stops being delivered, the blowing force of the exhaust gas on the conical sealing block 255 disappears, and under the elastic tension of the tension spring 254, the conical sealing block 255 moves upward and embeds into the interior of the support cylinder 21, thus sealing the support cylinder 21 and preventing the exhaust gas from flowing back.

[0055] The axis at the center of the double-headed conical elastic cylinder 251 coincides with the central axis at the middle of the support cylinder 21 and the central axis at the middle of the connecting cylinder 22. The conical surface on the outer side of the conical sealing block 255 fits into the inner cavity of the support cylinder 21.

[0056] The third embodiment is based on the first and second embodiments; please refer to [link / reference]. Figures 1 to 9 As shown:

[0057] A spray mechanism 6 is installed at the top of the inner cavity of the purification chamber 1, away from the volute housing 51. The spray mechanism 6 includes a circular track 61 and a pump body 62. The circular track 61 is fixedly installed at the top of the inner cavity of the purification chamber 1 and is located directly below the air outlet pipe 3. The pump body 62 is fixedly installed on the side of the surface of the purification chamber 1. A bent pipe 63 is connected to the liquid outlet at the top of the pump body 62. The top end of the bent pipe 63 penetrates the surface of the purification chamber 1 and extends into its interior. A rotating connector 64 is installed at the liquid outlet at the top of the bent pipe 63. A cross-shaped nozzle 65 is installed at the bottom of the rotating connector 64. A ball bearing 66 is rolled at the end of the cross-shaped nozzle 65, and a trumpet-shaped nozzle 67 is installed on the surface of the cross-shaped nozzle 65. When the operator starts the pump body 62, the pump body 62 uses suction to draw out part of the reaction reagent in the purification box 1. Under the transportation of the bent pipe 63, the reaction reagent enters the interior of the cross-shaped nozzle 65. The reaction reagent is sprayed from the trumpet-shaped nozzle 67 into the gas discharged upward from the gas outlet 523. The reaction reagent is sprayed from top to bottom, while the gas floats from bottom to top. The two move in opposite directions, which further treats the residual suspended dust and harmful gases in the gas.

[0058] The cross-shaped nozzle 65 is connected to the bent pipe 63. The spherical surface of the ball bearing 66 fits into the inner cavity of the circular track 61. The horn-shaped nozzles 67 are evenly distributed on the surface of the cross-shaped nozzle 65. The horn-shaped nozzles 67 are installed at an angle. The liquid inlet end of the pump body 62 passes through the purification box 1 and extends into its interior. As the reaction reagent is sprayed out from the horn-shaped nozzle 67, and combined with the angled installation of the horn-shaped nozzle 67, the horn-shaped nozzle 67 is pushed by the reaction reagent through action and reaction forces. The cross-shaped nozzle 65 is rotated and connected to the rotating connector 64. By utilizing the rolling of the ball bearing 66, the coefficient of friction is reduced, which allows the cross-shaped nozzle 65 to drive the horn-shaped nozzle 67 to rotate rapidly. Through the rotary spray, dead zones are less likely to occur.

[0059] When in use, the staff first injects an appropriate amount of reaction reagent into the purification box 1, and the first rocker plate 55, the second rocker plate 56 and the second rectangular hole 524 are all inside the reaction reagent.

[0060] At this time, the intake mechanism 2 is installed on the top of the purification box 1, the first gasket 23 is placed on the top of the connecting cylinder 22, and the top of the connecting cylinder 22 is connected to the exhaust port of the diesel engine.

[0061] As diesel engine exhaust gas is input from the connecting cylinder 22, it is compressed by the support cylinder 21 to make the second gasket 24 fit tightly against the support cylinder 21 and the top of the purification box 1. The first gasket 23 seals the top of the connecting cylinder 22. At the same time, the clamping force between the support cylinder 21 and the connecting cylinder 22 is used to compress the double-headed conical elastic cylinder 251, and compress the first sealing ring 252 and the second sealing ring 253. The connection is sealed and leakage is not likely to occur.

[0062] At the same time, as the exhaust gas pressure applies a blowing force to the conical sealing block 255, the conical sealing block 255 moves downward and the tension spring 254 is stretched. By disengaging the conical sealing block 255 from the inner cavity of the support cylinder 21, the interior of the support cylinder 21 can be opened, allowing the exhaust gas to flow smoothly.

[0063] When the diesel engine exhaust gas enters the interior of the volute housing 51, and is guided by the guide plate 54, the diesel engine exhaust gas is blown towards the bottom of the inner cavity of the volute housing 51. The reaction reagent in the inner cavity of the purification box 1 enters the interior of the volute housing 51 through the first rectangular hole 53, so that the exhaust gas can come into full contact with the reaction reagent and the particulate matter carried in the exhaust gas can be absorbed.

[0064] Furthermore, the first rocker plate 55 and the second rocker plate 56 are located in the reaction reagent inside the purification chamber 1. With the flow guide plate 54 guiding the tail gas, and under the guidance of the first rocker plate 55, the second rocker plate 56 and the third rocker plate 57, the tail gas blows the reaction reagent upward and rolls, causing the bubbles to rise, increasing the contact time between the tail gas and the reaction reagent. The reaction reagent rolls and falls repeatedly, which can increase the contact area between the tail gas and the reaction reagent and promote uniform purification of the tail gas.

[0065] And by utilizing the first rectangular hole 53 at the bottom position, particulate impurities will fall down from the first rectangular hole 53. And by using the first rocker plate 55, the second rocker plate 56 and the third rocker plate 57 which are arc-shaped, the first rectangular hole 53 can be blocked, and particulate impurities are less likely to flow back.

[0066] As the airflow is discharged from the outlet of the volute housing 51, and guided by the flow guide shroud 521, the airflow drifts out from the outlet 523, and the opening of the outlet 523 gradually increases from bottom to top, thus slowing down the gas flow.

[0067] Furthermore, the staff turned on the pump body 62 to operate, using the suction of the pump body 62 to suck out some of the reaction reagent in the purification box 1, and under the transportation of the bent pipe 63, the reaction reagent entered the interior of the cross-shaped nozzle 65. The reaction reagent was sprayed from the trumpet-shaped nozzle 67 into the gas discharged upward from the gas outlet 523. The reaction reagent was sprayed from top to bottom, while the gas floated from bottom to top. The two moved in opposite directions, which further treated the residual suspended dust and harmful gases in the gas.

[0068] As the reaction reagent is sprayed from the horn-shaped nozzle 67, and combined with the horn-shaped nozzle 67 being installed at an angle, the horn-shaped nozzle 67 is subjected to the reverse thrust of the sprayed reaction reagent through action and reaction forces. The rotating connector 64 is connected to the cross-shaped nozzle 65. The rolling of the ball 66 reduces the coefficient of friction, which allows the cross-shaped nozzle 65 to drive the horn-shaped nozzle 67 to rotate rapidly. Through the rotating spray, dead zones are less likely to occur.

[0069] At this time, the gas discharged from the diesel engine after treatment continues to move upward under the action of gas pressure and is discharged from the exhaust pipe 3. After the diesel engine exhaust gas treatment is completed, the sewage in the purification tank 1 can be discharged through the drain pipe 4.

[0070] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0071] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A diesel engine exhaust particulate matter purification device, characterized in that, include: Purification box (1), and drain pipe (4) installed at the bottom of purification box (1), air outlet pipe (3) installed on the side of the top of purification box (1), and air inlet mechanism (2) installed at the top of purification box (1) and away from air outlet pipe (3). Particulate matter treatment mechanism (5), the particulate matter treatment mechanism (5) is used to purify diesel engine exhaust gas, the particulate matter treatment mechanism (5) is installed in the middle of the inner cavity of the purification box (1); The particulate matter treatment mechanism (5) includes a volute housing (51) and a flow guiding component (52). The top of the volute housing (51) is fixedly installed at the side of the top of the inner cavity of the purification box (1). The flow guiding component (52) is installed at the air outlet on the surface of the volute housing (51). A first rectangular hole (53) is opened at the bottom of the volute housing (51). A flow guiding plate (54) is fixedly connected at the side of the inner cavity of the volute housing (51). A first rocker plate (55), a second rocker plate (56), and a third rocker plate (57) are fixedly installed in sequence at the bottom of the inner cavity of the volute housing (51) and near the first rectangular hole (53).

2. The diesel engine exhaust particulate matter purification equipment according to claim 1, characterized in that: There are three first rectangular holes (53), and the three first rectangular holes (53) are evenly distributed at the bottom of the volute shell (51). The drainage plate (54) is arc-shaped, and the first rocker (55), the second rocker (56) and the third rocker (57) are all arc-shaped.

3. The diesel engine exhaust particulate matter purification equipment according to claim 1, characterized in that: The flow guiding assembly (52) includes a flow guiding hood (521) and a T-shaped plate (522). The flow guiding hood (521) is fixedly installed at the air outlet on the surface of the volute housing (51). The top of the T-shaped plate (522) is fixedly installed at the middle of the top of the inner cavity of the purification box (1) by screws. An air outlet hopper (523) is installed at the bottom of the flow guiding hood (521). The opening of the air outlet hopper (523) is upward. A second rectangular hole (524) is opened at the bottom of the air outlet hopper (523).

4. The diesel engine exhaust particulate matter purification equipment according to claim 3, characterized in that: The air outlet (523), the flow guide (521) and the volute shell (51) are connected, and the second rectangular hole (524) is evenly distributed at the bottom of the air outlet (523).

5. The diesel engine exhaust particulate matter purification equipment according to claim 1, characterized in that: The air intake mechanism (2) includes a support cylinder (21) and a connecting cylinder (22). The top and bottom of the support cylinder (21) are fixedly installed to the top of the purification box (1) and away from the air outlet pipe (3) by screws. The support cylinder (21) is installed directly above the air inlet on the top of the volute housing (51). The connecting cylinder (22) is detachably fixedly installed on the top of the support cylinder (21). A first washer (23) is installed on the top of the connecting cylinder (22). A second washer (24) is installed between the bottom of the support cylinder (21) and the top of the purification box (1). An opening and closing assembly (25) is installed between the inner cavity of the support cylinder (21) and the inner cavity of the connecting cylinder (22).

6. The diesel engine exhaust particulate matter purification device according to claim 5, characterized in that: The connecting cylinder (22) is installed directly above the support cylinder (21). The first washer (23) and the second washer (24) are both made of rubber. The inner cavity of the support cylinder (21) and the inner cavity of the connecting cylinder (22) are both conical.

7. The diesel engine exhaust particulate matter purification device according to claim 5, characterized in that: The opening and closing assembly (25) includes a double-headed conical elastic cylinder (251), which is installed between the inner cavity of the support cylinder (21) and the inner cavity of the connecting cylinder (22). A first sealing ring (252) is fixedly connected to the conical surface at the bottom of the double-headed conical elastic cylinder (251), and a second sealing ring (253) is fixedly connected to the conical surface at the top of the double-headed conical elastic cylinder (251). A tension spring (254) is fixedly connected to the middle of the inner cavity of the double-headed conical elastic cylinder (251), and a conical sealing block (255) is fixedly connected to the bottom end of the tension spring (254).

8. The diesel engine exhaust particulate matter purification device according to claim 7, characterized in that: The axis at the center of the double-headed conical elastic cylinder (251) coincides with the central axis at the middle of the support cylinder (21) and the central axis at the middle of the connecting cylinder (22). The conical surface on the outer side of the conical sealing block (255) fits into the inner cavity of the support cylinder (21).

9. The diesel engine exhaust particulate matter purification device according to claim 1, characterized in that: A spray mechanism (6) is installed at the top of the inner cavity of the purification box (1) and at the end away from the volute shell (51). The spray mechanism (6) includes a circular track (61) and a pump body (62). The circular track (61) is fixedly installed at the top of the inner cavity of the purification box (1). The circular track (61) is installed directly below the air outlet pipe (3). The pump body (62) is fixedly installed on the side of the surface of the purification box (1). A bent pipe (63) is connected to the liquid outlet at the top of the pump body (62). The top end of the bent pipe (63) penetrates the surface of the purification box (1) and extends into its interior. A rotating connector (64) is installed at the liquid outlet at the top of the bent pipe (63). A cross-shaped nozzle (65) is installed at the bottom of the rotating connector (64). A ball bearing (66) is rolled at the end of the cross-shaped nozzle (65). A trumpet-shaped nozzle (67) is installed on the surface of the cross-shaped nozzle (65).

10. A diesel engine exhaust particulate matter purification device according to claim 9, characterized in that: The cross-shaped nozzle (65) is connected to the bent pipe (63), the spherical surface of the ball (66) fits into the inner cavity of the circular track (61), the horn-shaped nozzle (67) is evenly distributed on the surface of the cross-shaped nozzle (65), the horn-shaped nozzle (67) is installed at an angle, and the liquid inlet end of the pump body (62) penetrates the purification box (1) and extends into its interior.

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