Exhaust pipe for waste gas treatment

Abstract

The utility model relates to the technical field of exhaust pipes, in particular to a waste gas treatment exhaust pipe. According to the technical scheme, the exhaust pipe comprises an exhaust pipe body and further comprises an extension pipe connected to the gas outlet end, a gas inlet hole facing the gas outlet direction is formed in the side wall of the extension pipe, and waste gas is diluted and cooled before being exhausted; the protruding blocks annularly support the protective pipe arranged on the outer side of the exhaust pipe body and the outer side of the extension pipe in a sleeving mode. And the filter plate is arranged at the air outlet end of the extension pipe and is axially limited and fixed at the air outlet end of the extension pipe through a lock plate assembly. According to the exhaust pipe, the extension pipe is fixedly connected to the gas outlet end of the exhaust pipe body, the multiple gas inlet holes are formed in the side wall of the extension pipe, treated high-temperature waste gas is preliminarily diluted and cooled in the extension pipe before being exhausted, and the situation that high-temperature dry matter directly exhausted to the outside burns is avoided; the lock plate assembly is arranged between the filter plate and the convex block, so that the filter plate is prevented from falling off or loosening under the action of exhaust gas flow.

Description

Technical Field

[0001] The present application relates to the technical field of exhaust pipes, and in particular to an exhaust pipe for treating waste gas. Background Art

[0002] Waste gas refers to harmful or toxic gases that humans emit during life or in the process of living. Industrial waste gas in particular will seriously pollute the environment and affect human health. Therefore, the waste gas will be treated before being discharged. There are many ways to treat waste gas, and combustion treatment is a commonly used method in industry. The temperature of the waste gas after combustion treatment is very high, and there may be a small amount of particulate matter in the waste gas. When the particulate matter is discharged at high temperature, it will encounter oxygen in the air and spontaneously ignite and produce sparks. There are certain safety hazards. Therefore, the existing waste gas exhaust pipe will be equipped with a particle filter structure inside it. Prevent particulate matter from spontaneously igniting in the air.

[0003] However, when the existing exhaust pipe discharges the high-temperature gas, if there are dry objects near the exhaust pipe, such as dead grass, the high-temperature gas will be directly discharged into the air-assisted oxygen environment after being filtered, which will still cause certain safety hazards. In addition, the filter structure in the exhaust pipe is prone to fall off or loosen under the long-term air pressure. Utility Model Content

[0004] The purpose of this application is to point out in light of the background technology that there are still certain safety hazards when high-temperature gas is directly discharged into an air-assisted oxygen environment after filtration, and that the filter structure in the exhaust pipe is prone to falling off or loosening under the action of long-term air pressure, and to propose an exhaust pipe for waste gas treatment.

[0005] The technical solution of the present application is: an exhaust gas treatment exhaust pipe, including an exhaust pipe body, and also including:

[0006] An extension pipe connected to the gas outlet end, the side wall of which is provided with an air inlet hole facing the gas outlet, so as to dilute and cool the high-temperature exhaust gas before it is discharged;

[0007] A protective pipe is annularly supported by a plurality of protrusions and sleeved on the outside of the exhaust pipe body and the extension pipe;

[0008] A filter plate is installed at the air outlet end of the extension pipe, and the filter plate is axially limited and fixed at the air outlet end of the extension pipe through a locking plate assembly.

[0009] Preferably, there is a certain distance between the protection pipe and the exhaust pipe body and the extension pipe, and a plurality of ventilation holes are provided on the side wall of the protection pipe.

[0010] Preferably, the plurality of vent holes are arranged in a ring shape, and the plurality of vent holes are arranged at one end of the protection tube away from the air outlet pipe.

[0011] Preferably, the filter plate is mounted on the air outlet end of the extension tube, and the filter plate is a mesh structure.

[0012] The locking plate assembly comprises two groups of extension blocks fixedly connected to the edge of the outer wall of the filter plate, and the two groups of extension blocks are distributed in a ring shape;

[0013] The side walls in the same direction of the circumference of one end of one group of extension blocks away from the filter plate are fixedly connected with a docking plate, and the two docking plates are fixed to the corresponding group of protrusions by bolts.

[0014] Preferably, one end of the other group of extension blocks away from the filter plate is fixedly connected to a control block, and the control block faces the exhaust pipe body;

[0015] The control block is fixedly connected to the end of the exhaust pipe body, and the limiting block cooperates with the protrusion to complete the axial limiting of the filter plate.

[0016] Preferably, a limiting groove is provided on the side wall of the protrusion, the limiting block is arranged on the inner end side wall of the control block, and when the filter plate is clamped in the air outlet port of the extension tube, the limiting block is inserted into the limiting groove.

[0017] Preferably, the limit block is fixedly connected to the inner end of the control block, and when the filter plate is fitly clamped in the air outlet port of the extension tube, the limit block abuts against the inner wall of the protrusion.

[0018] Compared with the prior art, this application has the following beneficial technical effects:

[0019] The present application fixes an extension pipe to the outlet end of the exhaust pipe body, and opens a plurality of air inlet holes on the side wall of the extension pipe, and the air inlet holes are arranged obliquely toward the exhaust direction. When the exhaust gas is discharged, under the action of the airflow, the external air will enter the interior of the extension pipe through the plurality of air inlet holes, and the treated high-temperature exhaust gas will be initially diluted and cooled inside the extension pipe before being discharged, so as to avoid the situation where the high-temperature exhaust gas is directly discharged and burns with the external dry material, thereby avoiding the safety hazard of exhaust gas discharge;

[0020] By arranging a locking plate assembly between the filter plate and the protrusion, the locking plate assembly can play a further limiting role in the axial direction, thereby preventing the filter plate from falling off or loosening under the action of the exhaust gas discharge flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a stereoscopic view of an exhaust gas treatment exhaust pipe;

[0022] Figure 2 It is a structural schematic diagram of the first embodiment of the control block in this application;

[0023] Figure 3It is a structural diagram of the second embodiment of the control block in this application;

[0024] Figure 4 yes Figure 1 Enlarged structural diagram at A in the middle.

[0025] Reference numerals: 1, exhaust pipe body; 2, protection pipe; 3, bump; 4, vent hole; 5, extension pipe; 6, air inlet hole; 7, filter plate;

[0026] 8. Lock plate assembly; 801. Extension block; 802. Limiting groove; 803. Control block; 804. Limiting block; 805. Docking plate; 806. Bolt. DETAILED DESCRIPTION

[0027] The technical solution of the present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] The components of the embodiments of the present application generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed, but merely represents the selected embodiments of the present application.

[0029] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0030] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships 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 orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0031] In the description of this application, it should be noted that, 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 the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] Example

[0033] like Figure 1-4 As shown, an exhaust pipe for waste gas treatment proposed in the present application includes an exhaust pipe body 1, and also includes an extension pipe 5 connected to the outlet end. The side wall of the extension pipe 5 is provided with an air inlet hole 6 facing the outlet side, so as to dilute and cool the exhaust gas before discharging the high-temperature exhaust gas. By tilting the air inlet end of the air inlet hole 6 toward the exhaust port, the external air can enter the extension pipe 5 more smoothly under the action of the exhaust gas discharge airflow, so as to achieve a better cooling effect before the exhaust gas is discharged.

[0034] It also includes a protective tube 2 which is annularly supported by a plurality of protrusions 3 and is sleeved on the outside of the exhaust pipe body 1 and the extension pipe 5. There is a certain distance between the protective tube 2 and the exhaust pipe body 1 and the extension pipe 5. Both sides of the protective tube 2 are in a through-state, and a plurality of ventilation holes 4 are opened on the side wall of the protective tube 2. The plurality of ventilation holes 4 are annularly arranged, and the plurality of ventilation holes 4 are arranged at one end of the protective tube 2 away from the exhaust pipe, so that external air can smoothly enter the protective tube 2, and then smoothly enter the extension pipe 5, and can prevent exhaust gas from leaking through the ventilation holes 4; the setting of the protective tube 2 can play a role in safety protection of the exhaust pipe.

[0035] Among them, the output end of the extension tube 5 is connected to a filter plate 7, which is clamped at the air outlet end of the extension tube 5, and the filter plate 7 is a mesh structure, which filters particulate matter in the exhaust gas, and the filter plate 7 is axially limited and fixed at the air outlet end of the extension tube 5 by a locking plate assembly 8. The filter plate 7 can be regularly disassembled for cleaning to ensure the filtering effect and avoid long-term accumulation of particulate matter to cause blockage of the filter plate 7.

[0036] Specifically, refer to Figure 2 and Figure 4 , the locking plate assembly 8 includes two groups of extension blocks 801 fixedly connected to the edge of the outer wall of the filter plate 7, and the two groups of extension blocks 801 are distributed in a ring shape. One end of one group of extension blocks 801 away from the filter plate 7 is fixedly connected to the same-direction side wall of the circumference, and the two docking plates 805 are fixed to the corresponding group of protrusions 3 by bolts 806. The two docking plates 805 and the corresponding two protrusions 3 are respectively provided with threaded holes and threaded grooves. The other group of extension blocks 801 is fixedly connected to the end away from the filter plate 7 with a control block 803, and the control block 803 faces the exhaust pipe body 1. The control block 803 is fixedly connected to the end of the exhaust pipe body 1 with a limiting block 804, and the limiting block 804 cooperates with the protrusion 3 to complete the axial limitation of the filter plate 7. Combined with Figure 2 The side wall of the protrusion 3 is provided with a limiting groove 802, and the limiting block 804 is arranged on the inner end side wall of the control block 803, and when the filter plate 7 is clamped in the air outlet port of the extension tube 5, the limiting block 804 is inserted into the limiting groove 802 to complete the axial limitation of the filter plate 7.

[0037] Combination Figure 3 There is another embodiment of the control block 803, in which the limit block 802 is fixedly connected to the inner end of the control block 803, and when the filter plate 7 is fitted and clamped in the air outlet port of the extension tube 5, the limit block 804 contacts the inner wall of the protrusion 3, thereby completing the axial limitation of the filter plate 7.

[0038] The working principle of this embodiment is as follows: the exhaust pipe is connected to one end of the exhaust gas combustion treatment equipment, and the exhaust gas after combustion is discharged outward through the exhaust pipe body 1. The present application connects the extension pipe 5 to the exhaust end of the exhaust pipe body 1, and opens a plurality of air inlet holes 6 on the side wall of the extension pipe 5. The air inlet holes 6 are inclined toward the exhaust direction. When the exhaust gas is discharged, under the action of the airflow, the external air will enter the extension pipe 5 through the plurality of air inlet holes 6. The extension pipe 5 will enter a part of the air. The entry of air can reduce the temperature of the exhaust gas, and then it is filtered through the filter plate 7 and discharged outward, avoiding the situation where the high temperature is directly discharged and burns with the external dry material, thereby avoiding the safety hazard of exhaust gas discharge. The setting of the protective pipe 2 can protect the exhaust pipe body 1 and the extension pipe 5, and prevent workers from touching the exhaust pipe body 1 and the extension pipe 5 and causing burns. Furthermore, the filter plate 7 and the protrusion 3 are fixed by the locking plate assembly 8. In specific operation, the filter plate 7 is first clamped on the air outlet port of the extension tube 5. When the filter plate 7 is inserted, the limiting block 804 is staggered from the protrusion 3. After the filter plate 7 is inserted, the filter plate 7 is rotated by a certain angle so that the two limiting blocks 804 are respectively inserted into the corresponding two limiting grooves 802. At this time, the threaded hole on the docking plate 805 is aligned with the threaded groove on the corresponding protrusion 3, and the two bolts 806 are tightened to fix the filter plate 7. Due to the provision of two limiting blocks 804, the filter plate 7 can be further limited, preventing the filter plate 7 from being separated from the extension tube 5 or becoming loose under the pressure of the airflow, and significantly improving the stability of the installation of the filter plate 7.

[0039] The above-mentioned specific embodiments are merely preferred embodiments of the present application. Based on the technical solutions of the present application and the relevant inspirations of the above-mentioned embodiments, those skilled in the art may make various alternative improvements and combinations to the above-mentioned specific embodiments. The above-mentioned specific embodiments are merely explanations of the present application, and they are not limitations of the present application.

Claims

1. An exhaust gas treatment exhaust pipe, comprising an exhaust pipe body (1), characterized in that: Also includes: An extension pipe (5) connected to the gas outlet end, wherein the side wall of the extension pipe (5) is provided with an air inlet hole (6) facing the gas outlet, so as to dilute and cool the high-temperature exhaust gas before it is discharged; A protective pipe (2) is annularly supported and sleeved on the outside of the exhaust pipe body (1) and the extension pipe (5) by means of a plurality of protrusions (3); A filter plate (7) is mounted on the air outlet end of the extension tube (5), wherein the filter plate (7) is axially limited and fixed on the air outlet end of the extension tube (5) by a locking plate assembly (8).

2. The exhaust pipe for treating waste gas according to claim 1, characterized in that: There is a certain distance between the protection tube (2), the exhaust pipe body (1) and the extension tube (5), and a plurality of ventilation holes (4) are provided on the side wall of the protection tube (2).

3. The exhaust gas treatment exhaust pipe according to claim 2, characterized in that: The plurality of vent holes (4) are arranged in a ring shape, and the plurality of vent holes (4) are arranged at an end of the protection tube (2) away from the air outlet tube.

4. The exhaust gas treatment exhaust pipe according to claim 1, characterized in that: The filter plate (7) is mounted on the air outlet end of the extension tube (5), and the filter plate (7) is a mesh structure. The locking plate assembly (8) comprises two groups of extension blocks (801) fixedly connected to the edge of the outer wall of the filter plate (7), and the two groups of extension blocks (801) are distributed in a ring shape; The circumferential side walls of one end of a group of extension blocks (801) away from the filter plate (7) are fixedly connected to a docking plate (805) in the same direction, and the two docking plates (805) are fixed to the corresponding group of protrusions (3) by bolts (806).

5. The exhaust gas treatment exhaust pipe according to claim 4, characterized in that: The ends of the other group of extension blocks (801) away from the filter plate (7) are all fixedly connected to a control block (803), and the control block (803) faces the exhaust pipe body (1); The control block (803) is fixedly connected to a limiting block (804) at the end facing the exhaust pipe body (1); the limiting block (804) cooperates with the protrusion (3) to complete the axial limiting of the filter plate (7).

6. The exhaust gas treatment exhaust pipe according to claim 5, characterized in that: The side wall of the protrusion (3) is provided with a limiting groove (802), the limiting block (804) is arranged on the inner end side wall of the control block (803), and when the filter plate (7) is clamped in the air outlet port of the extension tube (5), the limiting block (804) is inserted into the limiting groove (802).

7. The exhaust gas treatment exhaust pipe according to claim 5, characterized in that: The limit block (804) is fixedly connected to the inner end of the control block (803), and when the filter plate (7) is fitted and clamped in the air outlet port of the extension tube (5), the limit block (804) contacts the inner wall of the protrusion (3).

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