Waste gas treatment device capable of recycling waste heat

Abstract

The waste gas treatment device comprises an installation bottom plate, a spraying box is fixedly installed on the upper surface of the installation bottom plate, a liquid storage box is fixedly installed on the upper surface of the spraying box, and a liquid extraction pump is fixedly installed on the inner top wall of the spraying box. The input end of the infusion pump penetrates through the spraying box and extends into the liquid storage box, the output end of the infusion pump fixedly communicates with a spraying disc, a filtering cover is fixedly installed on the upper surface of the mounting bottom plate, and a dust filtering plate, a sulfur dioxide filtering plate, a nitrogen oxide filtering plate and an activated carbon filtering plate are fixedly installed on the inner ring of the filtering cover. And an access cover is fixedly mounted on the upper surface of the filter cover. According to the waste gas treatment device capable of recycling the waste heat, a dust filtering plate and a sulfur dioxide filtering plate are arranged in the filtering cover and are matched with a nitrogen oxide filtering plate and an activated carbon filtering plate, so that waste gas can be subjected to multiple filtering treatment, and the filtering treatment effect on the waste gas is improved.

Description

Technical Field

[0001] The utility model relates to the field of waste gas treatment, in particular to a waste gas treatment device for waste heat reuse. Background Technique

[0002] Waste gas treatment refers to the pre-treatment of waste gas generated in industrial sites and factory workshops before external discharge to meet the national standards for external discharge of waste gas.

[0003] At present, after the waste heat of waste gas is reused, the waste gas needs to be treated again. The Chinese patent with the publication number CN217818265U discloses a waste gas treatment device for waste heat reuse of high-temperature waste gas, which relates to the technical field of waste gas treatment. It includes a base, and a purification box and a heat exchange box are installed on the top of the base. A sewage discharge pipe is opened at the bottom of the purification box, an exhaust port is opened at the top of the purification box, an air inlet channel is opened at the bottom of the heat exchange box, and an air outlet channel is opened at the top of the heat exchange box. However, in the above patent, only the waste gas can be filtered through a filter plate, and it is difficult to perform multiple filtrations on the waste gas after spraying, reducing the filtration treatment effect of the waste gas. Therefore, we propose a waste gas treatment device for waste heat reuse to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a waste gas treatment device for waste heat reuse to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A waste gas treatment device for waste heat reuse includes a mounting base plate. A spraying box is fixedly installed on the upper surface of the mounting base plate. A liquid storage tank is fixedly installed on the upper surface of the spraying box. A liquid pumping pump is fixedly installed on the inner top wall of the spraying box. The input end of the liquid pumping pump penetrates through the spraying box and extends into the interior of the liquid storage tank. The output end of the liquid pumping pump is fixedly communicated with a spraying disc. A filtering cover is fixedly installed on the upper surface of the mounting base plate. A dust filtering plate, a sulfur dioxide filtering plate, a nitrogen oxide filtering plate and an activated carbon filtering plate are respectively fixedly installed in the inner ring of the filtering cover. A maintenance cover is fixedly installed on the upper surface of the filtering cover. An air suction fan is fixedly installed on the inner top wall of the maintenance cover. A connecting pipe is arranged inside the filtering cover. The front end of the connecting pipe penetrates through the filtering cover and the spraying box in sequence and extends into the interior of the spraying box. A controller is fixedly installed on the front surface of the spraying box.

[0007] In a further embodiment, two fixing blocks are fixedly connected to the inner top wall of the spraying box, and the bottom surfaces of the two fixing blocks are fixedly connected to the upper surface of the spraying disc.

[0008] In a further embodiment, a ventilation pipe is fixedly communicated with the upper surface of the liquid storage tank, and a one-way valve is fixedly communicated with the outer surface of the ventilation pipe.

[0009] In a further embodiment, a liquid injection hole is formed in the upper surface of the liquid storage tank, and a sealing plug is threadedly connected to the inner wall of the liquid injection hole.

[0010] In a further embodiment, an exhaust hood is fixedly communicated with the upper surface of the inspection cover, and a protective net plate is threadedly connected to the inner ring of the exhaust hood.

[0011] In a further embodiment, a connecting head is arranged above the mounting base plate. The right end of the connecting head penetrates through the spray box and extends into the interior of the spray box. Two mounting holes are formed in the upper surface of the mounting base plate.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] Through the provided liquid storage tank and in cooperation with the liquid extraction pump and the spray disc, the present device can make the spray liquid spray and treat the waste gas inside the spray box. At the same time, by using the cooperation of the suction fan and the connecting pipe, the gas after spraying can be extracted and discharged inside the filter hood, which will accelerate the flow rate during waste gas treatment. Through the dust filter plate and sulfur dioxide filter plate arranged inside the filter hood and in cooperation with the nitrogen oxide filter plate and the activated carbon filter plate, the waste gas can be subjected to multiple filtration treatments, improving the filtration treatment effect on the waste gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the front view of the waste gas treatment device for waste heat reuse.

[0015] Figure 2 It is a cross-sectional view of the front view of the waste gas treatment device for waste heat reuse.

[0016] Figure 3 It is a cross-sectional view of the side view of the waste gas treatment device for waste heat reuse.

[0017] Figure 4 It is a cross-sectional view of the front view of the liquid storage tank in the waste gas treatment device for waste heat reuse.

[0018] In the figure: 1, mounting base plate; 2, spray box; 3, liquid storage tank; 4, liquid extraction pump; 5, spray disc; 6, connecting pipe; 7, suction fan; 8, exhaust hood; 9, activated carbon filter plate; 10, inspection cover; 11, nitrogen oxide filter plate; 12, sulfur dioxide filter plate; 13, dust filter plate; 14, protective net plate; 15, liquid injection hole; 16, sealing plug; 17, ventilation pipe; 18, one-way valve; 19, connecting head; 20, fixing block; 21, filter hood; 22, mounting hole; 23, controller. Detailed implementation mode

[0019] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is 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 should not be construed as a limitation to 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 specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "plurality" is two or more.

[0020] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-4, in the present utility model, an exhaust gas treatment device for waste heat reuse includes a mounting base plate 1. A spray box 2 is fixedly installed on the upper surface of the mounting base plate 1. A liquid storage tank 3 is fixedly installed on the upper surface of the spray box 2. A liquid extraction pump 4 is fixedly installed on the inner top wall of the spray box 2. The input end of the liquid extraction pump 4 penetrates through the spray box 2 and extends into the interior of the liquid storage tank 3. The output end of the liquid extraction pump 4 is fixedly communicated with a spray disc 5. A filter cover 21 is fixedly installed on the upper surface of the mounting base plate 1. A dust filter plate 13, a sulfur dioxide filter plate 12, a nitrogen oxide filter plate 11, and an activated carbon filter plate 9 are respectively fixedly installed inside the inner ring of the filter cover 21. An inspection cover 10 is fixedly installed on the upper surface of the filter cover 21. An air suction fan 7 is fixedly installed on the inner top wall of the inspection cover 10. A connecting pipe 6 is provided inside the filter cover 21. The front end of the connecting pipe 6 penetrates through the filter cover 21 and the spray box 2 in sequence and extends into the interior of the spray box 2. A controller 23 is fixedly installed on the front surface of the spray box 2. Through the cooperation of the air suction fan 7 and the connecting pipe 6, the gas after spraying can be extracted and discharged inside the filter cover 21, which will accelerate the flow rate during exhaust gas treatment.

[0023] In a further embodiment, two fixing blocks 20 are fixedly connected to the inner top wall of the spray box 2. The bottom surfaces of the two fixing blocks 20 are fixedly connected to the upper surface of the spray disc 5. A ventilation pipe 17 is fixedly communicated with the upper surface of the liquid storage tank 3. A check valve 18 is fixedly communicated with the outer surface of the ventilation pipe 17. A liquid injection hole 15 is opened on the upper surface of the liquid storage tank 3. A sealing plug 16 is threadedly connected to the inner wall of the liquid injection hole 15. The spray disc 5 can be fixed by the fixing blocks 20, which will make the spray disc 5 more firm. By using the cooperation of the ventilation pipe 17 and the check valve 18, it plays a role in ventilating the interior of the liquid storage tank 3. By using the setting of the liquid injection hole 15, it is convenient to inject the spray liquid.

[0024] In a further embodiment, an exhaust hood 8 is fixedly communicated with the upper surface of the inspection cover 10. A protective net plate 14 is threadedly connected to the inner ring of the exhaust hood 8. A connecting head 19 is provided above the mounting base plate 1. The right end of the connecting head 19 penetrates through the spray box 2 and extends into the interior of the spray box 2. Two groups of mounting holes 22 are opened on the upper surface of the mounting base plate 1. Through the exhaust hood 8 and the protective net plate 14, the treated gas can be discharged. By using the setting of the connecting head 19, it is convenient to be connected and installed with the exhaust gas pipeline after waste heat recovery.

[0025] The working principle of the present utility model is as follows: First, connect the connecting head 19 to the exhaust gas pipeline after waste heat recovery. Then, inject the spraying liquid into the interior of the liquid storage tank 3. Next, use the connecting head 19 to discharge the exhaust gas into the interior of the spraying tank 2, and start the liquid extraction pump 4 to operate, which can extract the spraying liquid and spray it downward through the spraying disc 5, and will spray-treat the exhaust gas. Then, utilize the suction force generated by the suction fan 7 to extract the sprayed gas through the connecting pipe 6 and discharge it inside the filter cover 21, and it will be subjected to multiple filtration treatments through the dust filter plate 13, sulfur dioxide filter plate 12, nitrogen oxide filter plate 11, and activated carbon filter plate 9, and finally discharged through the exhaust hood 8.

[0026] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0027] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A waste gas treatment device for waste heat recycling, characterized in that: The invention comprises a mounting base plate (1), a spray box (2) being fixedly mounted on the upper surface of the mounting base plate (1), a liquid storage box (3) being fixedly mounted on the upper surface of the spray box (2), a liquid extraction pump (4) being fixedly mounted on the inner top wall of the spray box (2), an input end of the liquid extraction pump (4) passing through the spray box (2) and extending into the interior of the liquid storage box (3), an output end of the liquid extraction pump (4) being fixedly connected to a spray plate (5), a filter cover (21) being fixedly mounted on the upper surface of the mounting base plate (1), and an inner ring of the filter cover (21) being fixedly mounted respectively. A dust filter plate (13), a sulfur dioxide filter plate (12), a nitrogen oxide filter plate (11) and an activated carbon filter plate (9) are installed; an inspection cover (10) is fixedly installed on the upper surface of the filter cover (21); a suction fan (7) is fixedly installed on the inner top wall of the inspection cover (10); a connecting pipe (6) is provided inside the filter cover (21); the front end of the connecting pipe (6) passes through the filter cover (21) and the spray box (2) in sequence and extends to the inside of the spray box (2); a controller (23) is fixedly installed on the front of the spray box (2).

2. The waste gas treatment device for waste heat recycling according to claim 1 is characterized in that: Two fixing blocks (20) are fixedly connected to the inner top wall of the spray box (2), and the bottom surfaces of the two fixing blocks (20) are fixedly connected to the upper surface of the spray plate (5).

3. The waste gas treatment device for waste heat recycling according to claim 1 is characterized in that: The upper surface of the liquid storage tank (3) is fixedly connected to a vent pipe (17), and the outer surface of the vent pipe (17) is fixedly connected to a one-way valve (18).

4. The waste gas treatment device for waste heat recycling according to claim 1 is characterized in that: A liquid injection hole (15) is provided on the upper surface of the liquid storage box (3), and a sealing plug (16) is threadedly connected to the inner wall of the liquid injection hole (15).

5. The waste gas treatment device for waste heat recycling according to claim 1 is characterized in that: The upper surface of the inspection cover (10) is fixedly connected to an exhaust hood (8), and the inner ring of the exhaust hood (8) is threadedly connected to a protective mesh plate (14).

6. The waste gas treatment device for waste heat recycling according to claim 1, characterized in that: A connecting head (19) is provided above the installation base plate (1), the right end of the connecting head (19) passes through the spray box (2) and extends to the interior of the spray box (2), and two groups of installation holes (22) are provided on the upper surface of the installation base plate (1).

Images