Half-dry desulfurization device for hazardous waste incineration flue gas

Abstract

The utility model discloses a semi-dry desulfurization device for hazardous waste incineration flue gas, which comprises a rotating mechanism, the rotating mechanism is mounted at the top of a desulfurization tower, a first gear on the rotating mechanism is fixedly connected with a connecting pipe, the bottom of the connecting pipe is fixedly connected with a spraying box, and a second gear on the rotating mechanism is fixedly connected with the spraying box. And the rotating mechanism drives the spraying box to rotate at the top of the desulfurizing tower. A rotating mechanism is mounted at the top of a desulfurizing tower, so that a rotating driving part on the rotating mechanism drives a second gear to rotate, the second gear drives a first gear in meshed connection to rotate, a connecting pipe fixedly provided with the first gear rotates, and a spraying box fixedly mounted at the bottom of the connecting pipe rotates in the desulfurizing tower; the spraying box is provided with a plurality of spraying holes, so that alkali liquor is uniformly sprayed out from the spraying holes formed in the bottom of the spraying box, the alkali liquor uniformly reacts with flue gas in the desulfurization tower, and the desulfurization efficiency and the desulfurization quality of the semi-dry desulfurization device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hazardous waste purification and treatment, in particular to a semi-dry desulfurization device for hazardous waste incineration flue gas. Background Art

[0002] Hazardous waste contains a large amount of organic matter and nitrogen, sulfur, phosphorus and halogen elements, which will produce dioxins, dust and SO during the incineration process. 2 , HCl, HF, NO, NO 2 In order to remove these toxic gases before the flue gas is discharged, it is necessary to purify the flue gas. Semi-dry desulfurization is a common process in flue gas treatment. In the semi-dry desulfurization process, the pre-prepared alkali solution is generally sprayed into the desulfurization tower through a nozzle to react with the acidic substances in the flue gas to form desulfurized flue gas. The desulfurized flue gas is then sent to the chimney for discharge after bag dust removal.

[0003] In the existing semi-dry desulfurization device for hazardous waste incineration flue gas, the spray box is fixed and no rotating mechanism is provided, so that the rotating mechanism can drive the nozzle installed on the spray box to rotatably input the alkali solution into the desulfurization tower. At the same time, the flue gas in the desulfurization tower cannot stay for a long time during the rising process, so that the flue gas can fully contact with the alkali solution, which affects the semi-dry desulfurization efficiency and desulfurization quality of the hazardous waste incineration flue gas. Utility Model Content

[0004] In view of the above-mentioned defects or shortcomings in the prior art, it is desired to provide a semi-dry desulfurization device for hazardous waste incineration flue gas, which is used to solve the technical problems that the spray box on the existing semi-dry desulfurization device is fixed and no rotating mechanism is provided, so that the rotating mechanism can drive the nozzle installed on the spray box to rotatably input the alkali solution into the desulfurization tower, and at the same time, the flue gas in the desulfurization tower cannot stay for a long time during the rising process, so that the flue gas can fully contact with the alkali solution, thereby affecting the semi-dry desulfurization efficiency and desulfurization quality of the hazardous waste incineration flue gas.

[0005] According to the technical solution provided in the embodiment of the present application, a semi-dry desulfurization device for hazardous waste incineration flue gas includes a rotating mechanism installed at the top of a desulfurization tower, and a first gear on the rotating mechanism is fixedly connected to a connecting pipe, and the bottom of the connecting pipe is fixedly connected to a spray box, so that the rotating mechanism drives the spray box to rotate at the top of the desulfurization tower;

[0006] The spray box is an arc-shaped structural plate, and a plurality of fan plates are fixedly installed on the bottom of the spray box, so that after the rotating mechanism drives the plurality of fan plates to rotate, the airflow generated by the plurality of fan plates convects with the flue gas in the desulfurization tower, so that the flue gas can stay in the desulfurization tower for a long time.

[0007] Furthermore, the rotating mechanism includes a rotating driving member, a second gear and a first gear, the first gear is meshedly connected to the second gear, and the second gear is fixedly connected to the output end of the rotating driving member, so that the rotating driving member drives the connecting pipe fixedly mounted with the first gear to rotate.

[0008] Furthermore, the top of the connecting pipe is fixedly connected to the feeding pipe, so that the feeding pipe can input the alkali solution into the connecting pipe, so that the alkali solution enters the spray box from the connecting pipe.

[0009] Furthermore, a spray chamber is provided on the spray box, the spray chamber is fixedly connected to the connecting pipe, and a plurality of spray holes are provided at the bottom of the spray box so that the alkali solution is sprayed out from the plurality of spray holes.

[0010] Furthermore, a plurality of the fan plates are arranged in parallel and at intervals at the bottom of the spray box.

[0011] Furthermore, a smoke inlet pipe is fixedly connected to the side of the desulfurization tower, so that the smoke generated by the incineration of hazardous waste enters the desulfurization tower from the smoke inlet pipe, and a discharge pipe is fixedly connected to the bottom of the desulfurization tower, and the discharge pipe is used to discharge the solid particles after the reaction.

[0012] In summary, the beneficial effects of this application are:

[0013] 1. By installing a rotating mechanism on the top of the desulfurization tower, the rotating driving member on the rotating mechanism drives the second gear to rotate, so that the second gear drives the meshing first gear to rotate, so that the connecting pipe fixedly installed with the first gear rotates, so that the spray box fixedly installed at the bottom of the connecting pipe rotates in the desulfurization tower, so that the alkali solution is evenly sprayed from a plurality of spray holes arranged at the bottom of the spray box, so that the alkali solution reacts evenly with the flue gas in the desulfurization tower, and the desulfurization efficiency and desulfurization quality of the semi-dry desulfurization device are improved;

[0014] Second, by installing several fan plates at the bottom of the spray box on the desulfurization tower, when the rotating mechanism drives the spray box to rotate, several parallel and spaced fan plates rotate, so that the airflow generated by the rotation of the fan plates and the flue gas rising from the desulfurization tower produce convection, so that the flue gas stays in the desulfurization tower for a long time, so that the flue gas and the alkali solution are fully mixed, thereby improving the desulfurization efficiency and desulfurization quality of the semi-dry desulfurization device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the adjustment mechanism of the utility model;

[0019] Figure 4 This is a schematic diagram of the bottom structure of the spray box of the utility model.

[0020] Numbers in the figure: rotating mechanism-100, first gear-110, rotating driving member-120, second gear-130, desulfurization tower-200, connecting pipe-300, spray box-400, fan plate-410, spray chamber-420, spray hole-430, feed pipe-500, smoke inlet pipe-600, discharge pipe-700. DETAILED DESCRIPTION

[0021] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings.

[0022] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] A semi-dry desulfurization device for hazardous waste incineration flue gas, the structure of which is as follows Figure 1-Figure 4 As shown, it includes a rotating mechanism 100, which is installed on the top of the desulfurization tower 200, and the first gear 110 on the rotating mechanism 100 is fixedly connected to the connecting pipe 300, and the bottom of the connecting pipe 300 is fixedly connected to the spray box 400, so that the rotating mechanism 100 drives the spray box 400 to rotate at the top of the desulfurization tower 200; the spray box 400 is an arc-shaped structural plate, and a plurality of fan plates 410 are also fixedly installed at the bottom of the spray box 400, so that after the rotating mechanism 100 drives the plurality of fan plates 410 to rotate, the airflow generated by the plurality of fan plates 410 convects with the flue gas in the desulfurization tower 200, so that the flue gas can stay in the desulfurization tower 200 for a long time.

[0024] During use, the flue gas generated by the incineration of hazardous waste enters the desulfurization tower 200 from the exhaust pipe 600, so that the rotating drive member 120 on the rotating mechanism 100 is started, so that the rotating mechanism 100 drives the spray box 400 to rotate in the desulfurization tower 200, so that the alkali solution enters the spray box 400 from the infusion pipe 500, and is sprayed out from a plurality of spray holes 430 provided on the spray box 400, so that the alkali solution is evenly mixed with the flue gas in the desulfurization tower 200, and a plurality of fan plates 410 are also provided at the bottom of the spray box 400, so that after the rotating mechanism 100 drives the plurality of fan plates 410 to rotate, the airflow generated by the plurality of fan plates 410 is convected with the flue gas in the desulfurization tower 200, so that the flue gas can stay in the desulfurization tower 200 for a long time, so that the flue gas and the alkali solution are fully mixed, thereby improving the desulfurization efficiency and desulfurization quality of the semi-dry desulfurization device.

[0025] As a preferred embodiment, please refer to Figure 2 and Figure 3 The rotating mechanism 100 includes a rotating driving member 120, a second gear 130 and a first gear 110. The first gear 110 is meshedly connected to the second gear 130, and the second gear 130 is fixedly connected to the output end of the rotating driving member 120, so that the rotating driving member 120 drives the second gear 130 to rotate, so that the first gear 110 meshedly connected to the second gear 130 rotates, so that the connecting pipe 300 fixedly installed with the first gear 110 rotates, so that the spray box 400 fixedly connected to the bottom of the connecting pipe 300 rotates.

[0026] As a preferred embodiment, please refer to Figure 1 and Figure 2 The top of the connecting pipe 300 is fixedly connected to the feeding pipe 500 so that the feeding pipe 500 feeds the alkali solution into the connecting pipe 300, so that the alkali solution enters the spray box 400 from the connecting pipe 300.

[0027] As a preferred embodiment, please refer to Figure 2 and Figure 3 A spray chamber 420 is also provided on the spray box 400, and the spray chamber 420 is fixedly connected to the connecting pipe 300, and a plurality of spray holes 430 are also provided at the bottom of the spray box 400, so that the alkali solution is sprayed out from the plurality of spray holes 430, so that the alkali solution reacts with the flue gas in the desulfurization tower 200 for neutralization.

[0028] As a preferred embodiment, please refer to Figure 4A plurality of fan plates 410 are arranged in parallel and at intervals at the bottom of the spray box 400, so that after the rotating driving member 120 on the rotating mechanism 100 drives the spray box 400 to rotate, the plurality of fan plates 410 fixedly connected to the bottom of the spray box 400 are driven to rotate, so that the plurality of fan plates 410 will make the airflow in the desulfurization tower 200 flow downward, so that the rising flue gas and the airflow are in convection, and stay in the desulfurization tower 200 for a long time, so that the alkali solution and the flue gas are fully mixed and reacted.

[0029] As a preferred embodiment, please refer to Figure 1 and Figure 2 A smoke inlet pipe 600 is fixedly connected to the side of the desulfurization tower 200, so that the smoke generated by the incineration of hazardous waste enters the desulfurization tower 200 from the smoke inlet pipe 600, and a discharge pipe 700 is fixedly connected to the bottom of the desulfurization tower 200, and the discharge pipe 700 is used to discharge the solid particles after the reaction.

[0030] The working principle of the utility model is:

[0031] When in use, the flue gas generated by the incineration of hazardous waste enters the desulfurization tower 200 from the smoke exhaust pipe 600, so that the rotating driving member 120 on the rotating mechanism 100 is started, so that the rotating driving member 120 drives the second gear 130 to rotate, so that the second gear 130 drives the meshing connected first gear 110 to rotate, so that the connecting pipe 300 fixedly installed with the first gear 110 is rotated, so that the spray box 400 fixedly installed at the bottom of the connecting pipe 300 is rotated in the desulfurization tower 200, so that the alkali solution is evenly sprayed from the spray box 400 at the bottom. A plurality of spray holes 430 are used to spray, so that the alkali solution can react evenly with the flue gas in the desulfurization tower 200, thereby improving the desulfurization efficiency and desulfurization quality of the semi-dry desulfurization device, and a plurality of fan plates 410 are also provided at the bottom of the spray box 400, so that after the rotating mechanism 100 drives the plurality of fan plates 410 to rotate, the airflow generated by the plurality of fan plates 410 is convected with the flue gas in the desulfurization tower 200, so that the flue gas can stay in the desulfurization tower 200 for a long time, so that the flue gas and the alkali solution are fully mixed, thereby improving the desulfurization efficiency and desulfurization quality of the semi-dry desulfurization device.

[0032] The above description is only an explanation of the preferred embodiments of the present application and the technical principles and other schemes used. At the same time, the scope of the utility model involved in the present application is not limited to the technical scheme formed by a specific combination of the above technical features, but also includes other technical schemes formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) to form a technical scheme.

Claims

1. A semi-dry desulfurization device for hazardous waste incineration flue gas, characterized by: It comprises a rotating mechanism (100) which is installed on the top of a desulfurization tower (200), and a first gear (110) on the rotating mechanism (100) is fixedly connected to a connecting pipe (300), and a bottom of the connecting pipe (300) is fixedly connected to a spray box (400), so that the rotating mechanism (100) drives the spray box (400) to rotate on the top of the desulfurization tower (200); The spray box (400) is an arc-shaped structural plate, and a plurality of fan plates (410) are fixedly installed at the bottom of the spray box (400), so that after the rotating mechanism (100) drives the plurality of fan plates (410) to rotate, the airflow generated by the plurality of fan plates (410) convects with the flue gas in the desulfurization tower (200), so that the flue gas can stay in the desulfurization tower (200) for a long time.

2. The semi-dry desulfurization device for hazardous waste incineration flue gas according to claim 1 is characterized by: The rotating mechanism (100) comprises a rotating driving member (120), a second gear (130) and a first gear (110), wherein the first gear (110) is meshedly connected with the second gear (130), and the second gear (130) is fixedly connected with an output end of the rotating driving member (120), so that the rotating driving member (120) drives the connecting pipe (300) on which the first gear (110) is fixedly mounted to rotate.

3. The semi-dry desulfurization device for hazardous waste incineration flue gas according to claim 2 is characterized by: The top of the connecting pipe (300) is fixedly connected to the feeding pipe (500), so that the feeding pipe (500) feeds the alkali solution into the connecting pipe (300), so that the alkali solution enters the spray box (400) from the connecting pipe (300).

4. The semi-dry desulfurization device for hazardous waste incineration flue gas according to claim 1 is characterized by: The spray box (400) is also provided with a spray chamber (420), the spray chamber (420) is fixedly connected to the connecting pipe (300), and a plurality of spray holes (430) are also provided at the bottom of the spray box (400), so that the alkali solution is sprayed out from the plurality of spray holes (430).

5. The semi-dry desulfurization device for hazardous waste incineration flue gas according to claim 1 is characterized by: A plurality of the fan plates (410) are arranged in parallel and at intervals at the bottom of the spray box (400).

6. The semi-dry desulfurization device for hazardous waste incineration flue gas according to claim 1 is characterized by: A smoke inlet pipe (600) is fixedly connected to the side of the desulfurization tower (200) so that smoke generated by the incineration of hazardous waste enters the desulfurization tower (200) from the smoke inlet pipe (600), and a discharge pipe (700) is fixedly connected to the bottom of the desulfurization tower (200), and the discharge pipe (700) is used to discharge solid particles after the reaction.

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