Exhaust inlet for waste gas treatment

Abstract

The utility model provides an exhaust inlet for waste gas treatment, which comprises a shell, an opening and closing door with a double-layer screen plate-shaped structure is connected to an opening on the front side of the shell, filter cotton is arranged between the two layers of screen plates, and a guide plate is vertically arranged in the shell and between an upper side plate and a lower side plate. Limiting protruding strips are fixedly connected to the positions, corresponding to the rear sides of the flow guide plates, of the upper side plate, the lower side plate, the left side plate and the right side plate, the rear side walls of the flow guide plates abut against the front sides of the limiting protruding strips, and U-shaped limiting pieces capable of adjusting the positions in the front-back direction are fixedly connected to the positions, corresponding to the front sides of the flow guide plates, of the upper side plate, the lower side plate, the left side plate and the right side plate in an inserted mode. The front side wall of the flow guide plate abuts against the rear side of the limiting piece, a flow guide through groove is formed in the flow guide plate, and an air outlet corresponding to the rear portion of the flow guide plate is formed in the upper side plate. The waste gas treatment device has the beneficial effects that the collected waste gas can be preliminarily filtered, impurities such as particulate matters in the waste gas can be filtered out, and the service life and the treatment efficiency of subsequent waste gas treatment equipment are effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste gas treatment, in particular to an air suction port for waste gas treatment. Background Art

[0002] In waste gas collection technology, the air intake is usually a pipe opening designed for waste gas collection. Waste gas collection is only carried out through pipelines, and the waste gas filtration is entirely dependent on the waste gas treatment equipment at the next level connected to the collection pipeline, which increases the working intensity of the lower-level waste gas treatment equipment, affects the service life of the equipment, and further affects the efficiency of the entire waste gas treatment system. Utility Model Content

[0003] In view of this, the utility model aims to overcome the deficiencies of the above-mentioned problems in the prior art and proposes an air suction port for exhaust gas treatment.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] An air suction port for exhaust gas treatment comprises a shell, an opening is arranged on the front side of the shell, and an opening and closing door is connected to the opening on the front side of the shell, and the opening and closing door is a double-layer mesh plate structure, and filter cotton is arranged between the two layers of mesh plates, and a guide plate is vertically arranged between the upper side plate and the lower side plate inside the shell, and limiting convex strips are fixedly connected to the upper side plate, the lower side plate, the left side plate and the right side plate at the rear side corresponding to the guide plate, and the rear side wall of the guide plate abuts the front side of the limiting convex strip, and U-shaped limiting pieces that can adjust their positions along the front and back are inserted and fixed at the front side of the guide plate corresponding to the upper side plate, the lower side plate, the left side plate and the right side plate, and the front side wall of the guide plate abuts the rear side of the limiting piece, a guide flow groove is arranged on the guide plate, and an air outlet corresponding to the rear of the guide plate is arranged on the upper side plate.

[0006] Furthermore, a plurality of groups of mounting holes distributed along the thickness direction of the shell are evenly opened on the upper side plate, the lower side plate, the left side plate and the right side plate, and each limiting member is inserted and fixed in a corresponding group of mounting holes.

[0007] Furthermore, the rods on both sides of the limiting member pass through the corresponding mounting holes, and sealing rings are connected between the mounting holes, and blocking blocks are provided in other mounting holes.

[0008] Furthermore, a frame with an inverted L-shaped cross section is protruded outward around the front opening of the shell, and the opening and closing door is arranged on the inner side of the frame.

[0009] Furthermore, there are two opening and closing doors, and a connecting beam is vertically fixed in the middle of the upper and lower sides of the frame. The outer end of each opening and closing door is hinged to the inner side of the frame, and the inner end is fixed with multiple locking blocks. The locking blocks on the two opening and closing doors are staggered, and a handle is fixed on the connecting beam corresponding to each locking block, and each handle can be rotatably engaged in the corresponding locking block.

[0010] Furthermore, a plurality of positioning blocks are evenly fixed to the outside of the frame, each of the positioning blocks is provided with a slot, an L-shaped plug-in block is plugged into the slot, and the horizontal section of the plug-in block is located outside the positioning block, the vertical section is plugged into the slot, and is fixed to the opening and closing door by a bolt and nut pair.

[0011] Furthermore, the locking block includes a fixed portion installed on the inner end surface of the opening and closing door and an inverted L-shaped blocking portion located in front of the fixed portion and integrally formed with the fixed portion. The handle includes a mounting portion installed on the connecting beam and a hand-holding portion rotatably connected to the front side of the mounting portion, and a clamping portion is fixedly connected to the hand-holding portion, and the clamping portion can be clamped in the blocking portion.

[0012] Furthermore, the rear side plate of the shell is arranged to tilt upward and backward from bottom to top.

[0013] Furthermore, there are multiple guide grooves, which are evenly arranged on the guide plate.

[0014] Furthermore, supporting feet are provided at the four corners of the bottom of the shell.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] The exhaust gas treatment air intake described in the utility model is arranged as a shell structure, and the opening on the front side of the shell is arranged as an opening and closing door with filter cotton, so as to facilitate the installation of the guide plate inside the shell, and the opening and closing door is arranged as a double-layer mesh plate structure, and filter cotton is sandwiched between the two mesh plates, so as to increase the air intake surface as much as possible and ensure the installation stability of the filter cotton; in addition, the rear side of the guide plate is positioned by a limiting convex strip, and the front side is positioned by a plurality of U-shaped limiting members, so as to facilitate the installation and replacement of the guide plate, and the guide plates of different thicknesses can be replaced according to the requirements of different air flow rates, and the position of the limiting members can be adjusted to position the guide plates; the air intake port can perform preliminary filtration on the collected exhaust gas, filter out impurities such as particulate matter in the exhaust gas, and effectively improve the service life and treatment efficiency of subsequent exhaust gas treatment equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the structure of the air suction port for waste gas treatment according to an embodiment of the utility model;

[0019] Figure 2 This is a cross-sectional view of the air intake port for waste gas treatment according to an embodiment of the utility model;

[0020] Figure 3 for Figure 1 A partial enlarged view of the middle A;

[0021] Figure 4 for Figure 1 A partial enlarged view of point B in the middle;

[0022] Figure 5 for Figure 2 A partial enlarged view of point C in the middle.

[0023] Description of reference numerals:

[0024] 1. Shell; 101. Air outlet; 102. Limiting convex strip; 103. Rear side plate; 104. Connecting beam; 105. Mounting hole; 106. Frame; 2. Opening and closing door; 201. Mesh plate; 202. Filter cotton; 3. Guide plate; 301. Guide groove; 4. Limiting piece; 5. Hinge; 6. Locking block; 601. Fixing part; 602. Blocking part; 7. Handle; 701. Mounting part; 702. Hand-held part; 703. Clamping part; 8. Positioning block; 801. Clamping slot; 9. Plug-in block; 10. Bolt and nut pair; 11. Fixing pin; 12. Support foot. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0026] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 an indirect connection 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 the present invention can be understood by specific circumstances.

[0028] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0029] As shown in the figure, an air inlet for exhaust gas treatment includes a shell 1, the front side of the shell 1 is opened, and an opening and closing door 2 is connected to the front side opening of the shell 1, and the opening and closing door 2 is a double-layer mesh plate 201-shaped structure, and a filter cotton 202 ( Figure 1 (not drawn in the figure), a guide plate 3 is vertically arranged between the upper side plate and the lower side plate inside the shell 1, and a limiting convex strip 102 is fixedly connected to the upper side plate, the lower side plate, the left side plate and the right side plate at the rear side corresponding to the guide plate 3, the rear side wall of the guide plate 3 abuts the front side of the limiting convex strip 102, and a U-shaped limiting piece 4 capable of adjusting the position forward and backward is inserted and fixed at the front side of the guide plate 3 corresponding to the upper side plate, the lower side plate, the left side plate and the right side plate, the front side wall of the guide plate 3 abuts the rear side of the limiting piece 4, a guide flow groove 301 is opened on the guide plate 3, and an air outlet 101 corresponding to the rear of the guide plate 3 is provided on the upper side plate. In this embodiment, the air intake port is set as a shell 1 structure, and the opening on the front side of the shell 1 is set as an opening and closing door 2 with filter cotton 202, which is convenient for installing the guide plate 3 inside the shell 1, and the opening and closing door 2 is set as a double-layer mesh plate 201 structure, and filter cotton 202 is sandwiched between the two mesh plates 201, so as to increase the air inlet surface as much as possible and ensure the installation stability of the filter cotton 202; in addition, the rear side of the guide plate 3 is positioned by a limiting convex strip 102, and the front side is positioned by multiple U-shaped limiting members 4, which is convenient for installing and replacing the guide plate 3. Since the depths of the guide grooves 301 on the guide plates 3 of different thicknesses are different, the air flow velocities discharged from the air outlet 101 will be different. Therefore, the guide plates 3 of different thicknesses can be replaced according to different air flow rate requirements, and the position of the limiting member 4 can be adjusted to position the guide plate 3.

[0030] Multiple groups of mounting holes 105 distributed along the thickness direction of the shell 1 are evenly opened on the upper side plate, the lower side plate, the left side plate and the right side plate, and each limiter 4 is inserted and fixed in a corresponding group of mounting holes 105 .

[0031] The rods on both sides of the limiter 4 pass through the corresponding mounting holes 105, and a sealing ring is connected between the mounting holes 105 and the mounting holes 105. The limiter 4 is fixed in the mounting hole 105 by the sealing ring, so that the limiter 4 is not easy to be pulled out, and a rubber sealing block (not shown in the figure) is provided in the other mounting holes 105 to prevent the airflow in the housing 1 from leaking directly from the mounting holes 105 without passing through the guide plate 3. In this embodiment, the corresponding mounting holes 105 are selected according to the thickness of the guide plate 3 to install the limiter 4. When other mounting holes 105 are selected for installation, it is only necessary to remove the corresponding sealing block to install the limiter 4, and at the same time, the mounting hole 105 where the limiter 4 was originally installed is blocked by the sealing block. Moreover, in the present embodiment, the cross-sectional dimensions of the rods on both sides of the limit member 4 are similar to the cross-sectional dimensions of the mounting hole 105, and the sealing ring used is relatively thin, so there is no need to use a thicker sealing ring for sealing. Therefore, the sealing ring can play the role of fixing the limit member 4, and the limit member 4 will not have a significant forward and backward shaking. In addition, the airflow enters the shell 1 from the opening and closing door 2 in front of the guide plate 3 and flows backward, and the airflow behind the guide plate 3 flows toward the air outlet 101 on the upper side. That is to say, even if there is an impact force decomposed toward the guide plate 3, the impact force of the airflow on the rear side is offset by the greater impact force of the airflow on the front side of the guide plate 3, that is, the guide plate 3 will not easily tilt forward, and thus will not push the limit member 4 forward, further laying a foundation for the stability of the limit member 4.

[0032] A frame 106 with an inverted L-shaped cross section is protruded outward around the front opening of the shell 1 , and the opening and closing door 2 is arranged on the inner side of the frame 106 .

[0033] There are two opening and closing doors 2, and a connecting beam 104 is vertically fixed in the middle of the upper and lower sides of the frame 106. The outer end of each opening and closing door 2 is hinged to the inner side of the frame 106 through a hinge 5, and the inner end is fixed with multiple locking blocks 6, and the locking blocks 6 on the two opening and closing doors 2 are staggered. A handle 7 is fixed on the connecting beam 104 corresponding to each locking block 6, and each handle 7 can be rotatably engaged in the corresponding locking block 6.

[0034] A plurality of positioning blocks 8 are evenly fixed to the outside of the frame 106, and each positioning block 8 is provided with a slot 801, in which an L-shaped plug-in block 9 is plugged, and the horizontal section of the plug-in block 9 is located outside the positioning block 8, and the vertical section is plugged into the slot 801, and is fixed to the opening and closing door 2 by a bolt and nut pair 10. In this embodiment, the structure of additional positioning blocks 8 and plug-in blocks 9 further positions the opening and closing door 2, avoids the situation that one end sinks after long-term use, improves the installation stability, and avoids the situation that the handle 7 and the locking block 6 are accidentally separated, and the opening and closing door 2 is directly turned outward.

[0035] The locking block 6 includes a fixing portion 601 installed on the inner end surface of the opening and closing door 2 and an inverted L-shaped blocking portion 602 located at the front side of the fixing portion 601 and integrally formed with the fixing portion 601. The handle 7 includes a mounting portion 701 installed on the connecting beam 104 and a hand-held portion 702 rotatably connected to the front side of the mounting portion 701. A clamping portion 703 is fixedly connected to the hand-held portion 702, and the clamping portion 703 can be clamped in the blocking portion 602. In this embodiment, the operator rotates the hand-held portion 702 to drive the clamping portion 703 so that the end of the clamping portion 703 slides from the lower side of the blocking portion 602 into the blocking portion 602, that is, the clamping of the handle 7 is completed. When the opening and closing door 2 needs to be opened, the hand-held portion 702 is rotated in the opposite direction to drive the clamping portion 703 to move out from the lower side of the blocking portion 602.

[0036] The rear side plate 103 of the housing 1 is tilted upward and backward from bottom to further guide the flow, ensuring that the air flow is greater closer to the air outlet 101, making it easier for the air flow on the lower side to flow to the air outlet 101.

[0037] There are multiple flow guide grooves 301 , which are evenly arranged on the guide plate 3 .

[0038] Support legs 12 are provided at the four corners of the bottom of the housing 1 .

[0039] In this embodiment, the upper side plate, the lower side plate, the left side plate, the right side plate and the rear side plate 103 are welded and fixed together to form a cover body, and of course, they can also be integrally cast.

[0040] In this embodiment, the opening and closing door 2 includes two mesh plates 201 structures, and the filter cotton 202 is sandwiched between the two mesh plates 201. The upper edges of the two mesh plates 201 are fixed by a fixing pin 11, and the two mesh plates 201 are further fixed together by a bolt and nut pair 10 while fixing the plug-in block 9. This structure not only ensures the stability of the opening and closing door 2, but also facilitates the later replacement of the filter cotton 202.

[0041] The working process of this embodiment is as follows:

[0042] The air intake port is connected to the pipe at the front end of the exhaust gas treatment system, that is, the pipe is connected to the air outlet 101. The exhaust gas enters the shell 1 through the opening and closing door 2, and is preliminarily filtered by the filter cotton 202 in the opening and closing door 2. The exhaust gas entering the shell 1 changes its flow rate through the guide groove 301 on the guide plate 3, enters the rear area of ​​the guide plate 3, and is finally discharged through the air outlet 101, and flows into the subsequent exhaust gas treatment equipment or system through the pipe connected to the air outlet 101.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An air suction port for waste gas treatment, characterized in that: The utility model comprises a shell body, an opening is arranged on the front side of the shell body, and an opening and closing door is connected to the opening on the front side of the shell body, and the opening and closing door is a double-layer mesh plate structure, and filter cotton is arranged between the two layers of mesh plates, and a guide plate is vertically arranged between the upper side plate and the lower side plate inside the shell body, and limiting convex strips are fixedly connected to the upper side plate, the lower side plate, the left side plate and the right side plate at the rear side corresponding to the guide plate, and the rear side wall of the guide plate abuts the front side of the limiting convex strip, and a U-shaped limiting piece which can adjust the position along the front and back is inserted and fixed at the front side of the guide plate corresponding to the upper side plate, the lower side plate, the left side plate and the right side plate, and the front side wall of the guide plate abuts the rear side of the limiting piece, a guide flow groove is arranged on the guide plate, and an air outlet corresponding to the rear of the guide plate is arranged on the upper side plate.

2. The exhaust gas treatment air inlet according to claim 1, characterized in that: A plurality of groups of mounting holes distributed along the thickness direction of the shell are evenly opened on the upper side plate, the lower side plate, the left side plate and the right side plate, and each limiting member is plugged and fixed in a corresponding group of mounting holes.

3. The exhaust gas treatment air inlet according to claim 2, characterized in that: The rods on both sides of the limiting member pass through the corresponding mounting holes, and sealing rings are connected between the mounting holes, and blocking blocks are arranged in the remaining mounting holes.

4. The exhaust gas treatment air inlet according to claim 1, characterized in that: A frame with an inverted L-shaped cross section is protruded outward around the opening of the front side of the shell, and the opening and closing door is arranged on the inner side of the frame.

5. The exhaust gas treatment air inlet according to claim 4, characterized in that: There are two opening and closing doors, and a connecting beam is vertically fixed in the middle of the upper and lower sides of the frame. The outer end of each opening and closing door is hinged to the inner side of the frame, and the inner end is fixed with multiple locking blocks. The locking blocks on the two opening and closing doors are staggered, and a handle is fixed on the connecting beam corresponding to each locking block, and each handle can be rotated and engaged in the corresponding locking block.

6. The exhaust gas treatment air inlet according to claim 5, characterized in that: A plurality of positioning blocks are evenly fixed on the outside of the frame, each of which is provided with a slot in which an L-shaped plug-in block is plugged, and the horizontal section of the plug-in block is located outside the positioning block, and the vertical section is plugged in the slot and fixed to the opening and closing door by a bolt and nut pair.

7. The exhaust gas treatment air inlet according to claim 5, characterized in that: The locking block includes a fixing portion installed on the inner end surface of the opening and closing door and an inverted L-shaped blocking portion located in front of the fixing portion and integrally formed with the fixing portion. The handle includes a mounting portion installed on a connecting beam and a hand-holding portion rotatably connected to the front side of the mounting portion, and a clamping portion is fixedly connected to the hand-holding portion, which can be clamped in the blocking portion.

8. The exhaust gas treatment air inlet according to claim 1, characterized in that: The rear side plate of the shell body is arranged to be tilted upward and backward from bottom to top.

9. The exhaust gas treatment air inlet according to claim 1, characterized in that: There are multiple guide grooves, which are evenly arranged on the guide plate.

10. The exhaust gas treatment air inlet according to claim 1, characterized in that: Support feet are arranged at the four corners of the bottom of the shell.

Images