A dosing device for exhaust gas treatment
The innovative design of the snap-fit components and dosing components solves the problems of loose connections and interruptions in the dosing equipment, ensuring the continuity and stability of waste gas treatment and facilitating the disassembly and cleaning of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 郑坚
- Filing Date
- 2025-07-06
- Publication Date
- 2026-06-26
Smart Images

Figure CN224404808U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waste gas treatment technology, and in particular to a dosing device for waste gas treatment. Background Technology
[0002] To reduce the content of harmful substances in exhaust gas and meet emission standards, exhaust gas treatment technology has been widely used. However, existing exhaust gas treatment systems have at least the following drawbacks: 1. Existing dosing equipment for exhaust gas treatment is prone to interruption during the dosing process, thus affecting the continuous process of exhaust gas treatment; 2. The connections of existing dosing equipment for exhaust gas treatment are not secure enough to prevent the chemicals from falling and being wasted during the dosing process. Therefore, we are introducing a new dosing equipment for exhaust gas treatment. Utility Model Content
[0003] The main objective of this invention is to provide a dosing device for waste gas treatment, which can effectively solve the problems in the background art.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0005] A dosing device for treating exhaust gas includes a fixed base plate, an exhaust gas treatment device inserted through the upper end of the fixed base plate, a fixing ring fixedly sleeved on the lower part of the outer surface of the exhaust gas treatment device, support plates fixedly connected to the left and right parts of the outer surface of the exhaust gas treatment device, control valves fixedly connected to the upper ends of the two support plates, and both control valves passing through and fixedly connected to the exhaust gas treatment device. A support pipe is fixedly connected through the upper part of the right end of the control valve on the right side, and a snap-fit assembly is fixedly connected through the upper end of the support pipe. A connecting cover is sleeved on the upper part of the outer surface of the exhaust gas treatment device, and a dosing assembly is fixedly connected through the upper part of the left end of the control valve on the left side.
[0006] The snap-fit assembly includes a support frame, with a first connector fixedly connected to the lower end of the support frame. Limiting rods are fixedly connected to the upper left and upper right parts of the support frame, and the outer surfaces of the two limiting rods are fitted together with the limiting frame. Springs are fixedly connected to the lower left and lower right parts of the limiting frame, and the two springs are respectively fitted with the two limiting rods. The lower ends of the two springs are fixedly connected to the support frame. The first connector is fixedly connected to the support tube.
[0007] Preferably, the dosing assembly includes a connecting pipe, a screw tube is fixedly connected to the upper end of the connecting pipe, a retaining frame is fixedly sleeved on the lower part of the outer surface of the screw tube, a connecting assembly is sleeved on the outer surface of the screw tube, and the connecting pipe is connected to the control valve on the left.
[0008] By adopting the above technical solution, where the card frame is sleeved with the connecting component and the connecting component is threaded with the screw tube, the connecting tube and the connecting component can be connected together to facilitate the subsequent drug supply process.
[0009] Preferably, the connecting assembly includes a tube body, a second connector is fixedly connected to the left end of the tube body, an insert tube is fixedly connected to the lower end of the tube body, a connecting frame is fixedly connected to the upper part of the outer surface of the insert tube, a connecting thread is provided on the inner wall of the connecting frame, and the insert tube and the threaded tube are interlocked.
[0010] By adopting the above technical solution, the tube is inserted into the inner wall of the spiral tube and the connecting thread is threaded onto the outer surface of the spiral tube, which can fix the connection between the connecting tube and the connecting component. The connection between the connecting tube and the connecting component is easy to install and disassemble, which facilitates the subsequent disassembly and cleaning process.
[0011] Preferably, the connecting thread is threaded onto the outer surface of the helical tube.
[0012] Preferably, the connecting frame and the card frame are interlocked.
[0013] Preferably, the connecting cover is located above the two control valves.
[0014] Compared with the prior art, the present invention has the following beneficial effects:
[0015] 1. By setting up a dosing component and a snap-fit component, the No. 2 connector is fixedly connected to the external supply equipment to facilitate the dosing process of the exhaust gas treatment. The temporary dosing tank and the support frame are connected to temporarily supply dosing to the exhaust gas treatment equipment to avoid interruption of the dosing process and improve stability.
[0016] 2. By setting a connecting component on the dosing assembly, the insert tube and the screw tube are inserted and connected, and the connecting thread is sleeved with the thread on the outer surface of the screw tube, so as to fix the connecting tube and the connecting component together, thereby improving the stability of the dosing assembly during the dosing process and preventing the drug from falling off during the dosing process. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of a chemical dosing device for waste gas treatment according to this utility model;
[0018] Figure 2 This is a schematic diagram of the overall structure of the snap-fit assembly of a dosing device for waste gas treatment according to this utility model;
[0019] Figure 3 This is a schematic diagram of the overall structure of the dosing component of a dosing device for waste gas treatment according to this utility model;
[0020] Figure 4This is a schematic diagram of the overall structure of the connecting components of a chemical dosing device for waste gas treatment according to this utility model.
[0021] In the diagram: 1. Fixed base plate; 2. Waste gas treatment equipment; 3. Fixing ring; 4. Support plate; 5. Control valve; 6. Support pipe; 7. Snap-fit assembly; 8. Dosing assembly; 9. Connecting cover; 71. Support frame; 72. Connector No. 1; 73. Limiting rod; 74. Limiting frame; 75. Spring; 81. Connecting pipe; 82. Snap-fit frame; 83. Threaded tube; 84. Connecting assembly; 841. Pipe body; 842. Connector No. 2; 843. Connecting frame; 844. Insert tube; 845. Connecting thread. Detailed Implementation
[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0025] Please see Figure 1-4 This utility model provides a technical solution:
[0026] A dosing device for treating exhaust gas includes a fixed base plate 1, an exhaust gas treatment device 2 inserted through the upper end of the fixed base plate 1, a fixed ring 3 fixedly sleeved on the lower part of the outer surface of the exhaust gas treatment device 2, support plates 4 fixedly connected to the left and right parts of the outer surface of the exhaust gas treatment device 2, control valves 5 fixedly connected to the upper ends of the two support plates 4, and the two control valves 5 are both fixedly connected through the exhaust gas treatment device 2, a support pipe 6 is fixedly connected through the upper right end of the right control valve 5, a snap-fit assembly 7 is fixedly connected through the upper end of the support pipe 6, a connecting cover 9 is sleeved on the upper part of the outer surface of the exhaust gas treatment device 2, and a dosing assembly 8 is fixedly connected through the upper left end of the left control valve 5.
[0027] In this embodiment, the snap-fit assembly 7 includes a support frame 71. A first connector 72 is fixedly connected to the lower end of the support frame 71. Limiting rods 73 are fixedly connected to the upper left and upper right parts of the support frame 71. The outer surfaces of the two limiting rods 73 are fitted together with a limiting frame 74. Springs 75 are fixedly connected to the lower left and lower right parts of the limiting frame 74, and the two springs 75 are respectively fitted with the two limiting rods 73. The lower ends of the two springs 75 are fixedly connected to the support frame 71. The first connector 72 is fixedly connected to the support tube 6.
[0028] The above solution involves using the snap-fit assembly 7 to support the temporary drug supply tank, and using two springs 75 to elastically pull the limiting frame 74, causing the limiting frame 74 to engage with the temporary drug supply tank, thereby limiting and clamping the temporary drug supply tank to prevent it from falling off during drug supply. The temporary drug supply tank facilitates the temporary drug supply process of the entire waste gas treatment equipment 2, preventing interruptions in drug supply during waste gas treatment.
[0029] In this embodiment, the dosing assembly 8 includes a connecting pipe 81, with a threaded tube 83 fixedly connected to the upper end of the connecting pipe 81. A retaining frame 82 is fixedly sleeved on the lower part of the outer surface of the threaded tube 83, and a connecting assembly 84 is sleeved on the outer surface of the threaded tube 83. The connecting pipe 81 is connected to the control valve 5 on the left. The connecting assembly 84 includes a pipe body 841, with a second connector 842 fixedly connected to the left end of the pipe body 841. An insert tube 844 is fixedly connected to the lower end of the pipe body 841. A connecting frame 843 is fixedly connected to the upper part of the outer surface of the insert tube 844. A connecting thread 845 is provided on the inner wall of the connecting frame 843. The insert tube 844 and the threaded tube 83 are interlocked. The connecting thread 845 is threadedly sleeved on the outer surface of the threaded tube 83. The connecting frame 843 is interlocked with the retaining frame 82. The connecting cover 9 is located above the two control valves 5.
[0030] The above scheme involves supplying chemicals to the waste gas treatment equipment 2 through the dosing assembly 8. The insert tube 844 is inserted and connected to the inner wall of the screw tube 83. The connecting thread 845 on the connecting assembly 84 is threaded onto the outer surface of the screw tube 83. This fixes the connection between the connecting tube 81 and the connecting assembly 84, improves the stability of the dosing assembly 8 during the chemical supply process, and prevents the chemicals from falling off during the chemical supply process. Furthermore, the connection between the connecting tube 81 and the connecting assembly 84 is easy to install, disassemble, and remove, facilitating subsequent disassembly and cleaning.
[0031] It should be noted that this utility model is a dosing device for waste gas treatment. During use, firstly, the fixing ring 3 is fixedly connected to the fixing base plate 1 with screws, providing a stable installation foundation for the waste gas treatment device 2, achieving precise positioning of the device, ensuring stability during operation, and preventing shaking from affecting the dosing effect. Regarding the connection and fixing of the dosing component 8, the insertion tube 844 is inserted into the inner wall of the threaded tube 83, and simultaneously, the connecting thread 845 on the connecting component 84 is threaded onto the outer surface of the threaded tube 83. This double connection method enhances the connection strength between the connecting tube 81 and the connecting component 84, effectively preventing drug leakage or falling during dosing, ensuring stable drug supply from the dosing component 8, and the connection structure is convenient for installation and disassembly, facilitating equipment operation. In subsequent cleaning and maintenance, connector 842 is connected to the external dosing equipment to establish a stable dosing channel, continuously replenishing the dosing component 8 with reagents to meet the reagent requirements of the waste gas treatment equipment 2. When the dosing component 8 malfunctions and cannot supply reagents, the temporary dosing tank plays a crucial role. The temporary dosing tank is inserted into the support frame 71 of the snap-fit component 7, and two springs 75 apply elastic tension to the limiting frame 74, so that the limiting frame 74 tightly fits the temporary dosing tank, completing the limiting clamping of the temporary dosing tank and preventing it from falling off during the dosing process. The temporary dosing tank serves as a backup dosing device, taking over the dosing work in a timely manner when the main dosing component fails, avoiding a decrease in treatment effect due to reagent interruption during the waste gas treatment process, and ensuring that the waste gas treatment work can be carried out continuously and stably.
[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A dosing device for treating waste gas, comprising a fixed base plate (1), characterized in that: The upper end of the fixed base plate (1) is connected to the waste gas treatment device (2). The lower part of the outer surface of the waste gas treatment device (2) is fixedly sleeved with a fixing ring (3). The left and right parts of the outer surface of the waste gas treatment device (2) are both fixedly connected with a support plate (4). The upper ends of the two support plates (4) are both fixedly connected with a control valve (5). The two control valves (5) are both fixedly connected to the waste gas treatment device (2). The upper part of the right end of the control valve (5) is fixedly connected with a support pipe (6). The upper end of the support pipe (6) is fixedly connected with a snap-fit assembly (7). The upper part of the outer surface of the waste gas treatment device (2) is sleeved with a connecting cover (9). The upper part of the left end of the control valve (5) is fixedly connected with a dosing assembly (8). The snap-fit assembly (7) includes a support frame (71), with a first connector (72) fixedly connected through the lower end of the support frame (71). Limiting rods (73) are fixedly connected to the upper left and upper right parts of the support frame (71). The outer surfaces of the two limiting rods (73) are fitted together with a limiting frame (74). Springs (75) are fixedly connected to the lower left and lower right parts of the limiting frame (74), and the two springs (75) are respectively fitted with the two limiting rods (73). The lower ends of the two springs (75) are fixedly connected to the support frame (71). The first connector (72) is fixedly connected through the support tube (6).
2. The dosing equipment for waste gas treatment according to claim 1, characterized in that: The dosing assembly (8) includes a connecting pipe (81), with a screw tube (83) fixedly connected to the upper end of the connecting pipe (81), a retaining frame (82) fixedly sleeved on the lower part of the outer surface of the screw tube (83), and a connecting assembly (84) sleeved on the outer surface of the screw tube (83). The connecting pipe (81) is connected to the control valve (5) on the left.
3. The dosing equipment for waste gas treatment according to claim 2, characterized in that: The connecting assembly (84) includes a tube (841), a second connector (842) is fixedly connected to the left end of the tube (841), an insert tube (844) is fixedly connected to the lower end of the tube (841), a connecting frame (843) is fixedly connected to the upper part of the outer surface of the insert tube (844), a connecting thread (845) is provided on the inner wall of the connecting frame (843), and the insert tube (844) is inserted and connected to the threaded tube (83).
4. The dosing equipment for waste gas treatment according to claim 3, characterized in that: The connecting thread (845) is threaded onto the outer surface of the screw tube (83).
5. The dosing equipment for treating waste gas according to claim 3, characterized in that: The connecting frame (843) and the card frame (82) are interlocked.
6. The dosing equipment for waste gas treatment according to claim 1, characterized in that: The connecting cover (9) is located on top of the two control valves (5).