Desulfurization and denitrification integrated purification device for waste gas

Abstract

The utility model discloses a waste gas desulfurization and denitrification integrated purification device in the technical field of waste gas treatment, which comprises a treatment tank body, a ladder assembly fixedly mounted at the rear end of the treatment tank body, a flow guide mechanism arranged on the left side of the treatment tank body, a circulating treatment mechanism arranged on the right side of the treatment tank body, and a liquid injection pipe fixedly mounted at the upper end of the treatment tank body, the desulfurization and denitrification integrated purification device for the waste gas is composed of a treatment tank body, a ladder assembly, a flow guide mechanism and a circulating treatment mechanism, the flow guide mechanism is communicated with a waste gas conveying end and used for directly installing the purification device at a waste gas generating end, and then the effect of rapidly treating sulfur and nitrate in the waste gas in the waste gas conveying process is achieved; the circulating treatment mechanism adopts a plurality of atomizing nozzles to spray an alkaline solution, so that the waste gas is more completely contacted with the alkaline solution, and a more efficient waste gas treatment effect is realized; and the circulating treatment mechanism can recycle the alkaline solution, so that the waste of the alkaline solution is reduced, and the use cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to a waste gas desulfurization and denitration integrated purification device. Background Art

[0002] Waste gas refers to gases generated during the production process, equipment operation or daily activities, and are generally considered to be harmful to the environment. These gases may contain various organic and inorganic substances, solid particles and harmful microorganisms, etc. They can come from industrial production emissions, vehicle exhaust, household combustion activities, chemical product use and other aspects; waste gas desulfurization and denitrification refers to a technology that treats waste gas emitted during industrial production to remove harmful gases such as sulfur dioxide and nitrogen oxides. These harmful gases mainly come from the burning of fossil fuels such as coal, oil and natural gas, as well as metal smelting, chemical production and other processes.

[0003] The patent document with application number CN202322212087.6 discloses an integrated purification device for waste gas desulfurization and denitrification, which includes a base, the top of the base is fixedly connected to a desulfurization device body, the top of the base is fixedly connected to a denitrification device body on a side deviating from the desulfurization device body, and the top of the base is fixedly connected to a spray device body on a side deviating from the denitrification device body. Based on the search of the above patents and in combination with the integrated purification device for waste gas desulfurization and denitrification in the prior art, it is found that when the integrated purification device for waste gas desulfurization and denitrification is used, in the process of denitrification using an alkaline solution, the desulfurization and denitrification reaction cannot be fully carried out due to insufficient gas-liquid contact, thereby affecting the overall treatment efficiency. This problem is particularly prominent in the waste gas treatment environment of high temperature, high pressure and fast flow. Utility Model Content

[0004] The purpose of the utility model is to provide an integrated exhaust gas desulfurization and denitrification purification device to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an integrated purification device for waste gas desulfurization and denitrification, comprising a treatment tank body, a ladder frame is fixedly installed at the rear end of the treatment tank body, a flow guide mechanism is arranged on the left side of the treatment tank body, and a circulating treatment mechanism is arranged on the right side of the treatment tank body, the circulating treatment mechanism comprises an injection pipe, a liquid collection pipe and an atomizing nozzle, an injection pipe is fixedly installed at the upper end of the treatment tank body, a liquid collection pipe is fixedly installed at the lower end of the liquid injection pipe, an atomizing nozzle is fixedly installed on the outer wall of the liquid collection pipe, and six groups of atomizing nozzles are evenly plugged into the liquid collection pipe with the midpoint of the liquid collection pipe as the axis.

[0006] Optionally, the circulation treatment mechanism further includes a pipe support, a recovery pipe, a circulation pump, a mounting seat, a body support and a liquid exchange pipe, and the pipe support is fixedly installed on the right end of the treatment tank body.

[0007] Optionally, a recovery pipe is fixedly mounted on the pipe bracket, and the recovery pipe is inserted into the processing tank body.

[0008] Optionally, one end of the recovery pipe away from the processing tank body is fixedly connected to a circulation pump, and the circulation pump is fixedly connected to the injection pipe.

[0009] Optionally, a mounting seat is provided above the pipe support, an organism support is fixedly mounted on the upper end of the mounting seat, and a liquid exchange pipe is fixedly mounted on the lower end of the processing tank.

[0010] Optionally, the flow guiding mechanism includes a first connecting seat, a first air pipe, a second connecting seat, a second air pipe and a partition, the first connecting seat is fixedly installed on the left end of the processing tank body, and the first air pipe is fixedly installed on the left end of the first connecting seat.

[0011] Optionally, a second connecting seat is fixedly installed at the front end of the processing tank body, a second air pipe is fixedly installed at the front end of the second connecting seat, and a partition is fixedly installed inside the processing tank body.

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

[0013] 1. In the utility model, a flow guiding mechanism is provided, which includes a first connecting seat, a first air pipe, a second connecting seat, a second air pipe, and a partition. The first connecting seat and the second connecting seat are respectively used to connect the exhaust gas delivery pipeline, the first air pipe and the second air pipe are respectively used to guide the exhaust gas to enter and leave the treatment tank body, and the partition is used to form a specific flow path in the treatment tank body to guide the exhaust gas to rotate and flow in the treatment tank body to increase the gas-liquid contact opportunity. The exhaust gas realizes rotational flow in the treatment tank body, effectively increases the gas-liquid contact area, and promotes the desulfurization and denitrification reactions. The layout of the first air pipe and the second air pipe is reasonable, so that the exhaust gas can smoothly enter and leave the treatment tank body, ensuring the continuity and stability of the entire purification process.

[0014] 2. In the utility model, a circulating treatment mechanism is provided, which includes a pipe support, a recovery pipe, a circulation pump, an injection pipe, a mounting seat, a body support, a liquid collection pipe, an atomizing nozzle and a liquid exchange pipe. The circulation pump is used to pump the alkaline solution from the recovery pipe to the injection pipe and the liquid collection pipe, and then spray it out through the atomizing nozzle. The liquid exchange pipe is used to regularly replace or regenerate the alkaline solution. The efficient operation of the circulation pump ensures that the alkaline solution can be quickly and evenly distributed in the treatment tank body, greatly improving the desulfurization and denitrification efficiency. The atomizing nozzle enables the alkaline solution to form fine droplets, increases the contact area with the exhaust gas, and improves the reaction rate and efficiency. Through the arrangement of the recovery pipe and the circulation pump, the recycling of the alkaline solution is realized, the consumption of the solution is reduced, and the operating cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model in a three-dimensional front view;

[0016] Figure 2 It is a schematic structural diagram of the utility model in a plane front view;

[0017] Figure 3 This is a schematic diagram of the structure of the three-dimensional rear view of the utility model;

[0018] Figure 4 The structure of the utility model is schematically shown in a three-dimensional cutaway view. Figure 1 ;

[0019] Figure 5 The structure of the utility model is shown in a three-dimensional cutaway view. Figure 2 .

[0020] In the figure: 1. treatment tank; 2. ladder frame; 3. flow guide mechanism; 301. first connecting seat; 302. first air pipe; 303. second connecting seat; 304. second air pipe; 305. partition; 4. circulation treatment mechanism; 401. pipe support; 402. recovery pipe; 403. circulation pump; 404. injection pipe; 405. mounting seat; 406. body support; 407. liquid collection pipe; 408. atomizing nozzle; 409. liquid exchange pipe. DETAILED DESCRIPTION

[0021] 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.

[0022] 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.

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figures 1 to 5In the embodiment of the utility model, an integrated purification device for desulfurization and denitrification of waste gas includes a treatment tank body 1, a ladder frame 2 is fixedly installed at the rear end of the treatment tank body 1, a flow guide mechanism 3 is arranged on the left side of the treatment tank body 1, and a circulating treatment mechanism 4 is arranged on the right side of the treatment tank body 1. The circulating treatment mechanism 4 includes an injection pipe 404, a liquid collection pipe 407 and an atomizing nozzle 408. The upper end of the treatment tank body 1 is fixedly installed with an injection pipe 404, the lower end of the injection pipe 404 is fixedly installed with a liquid collection pipe 407, and an atomizing nozzle 408 is fixedly installed on the outer wall of the liquid collection pipe 407. Six groups of atomizing nozzles 408 are evenly plugged into the liquid collection pipe 407 with the midpoint of the liquid collection pipe 407 as the axis. The circulating treatment mechanism 4 also includes a pipe bracket 401, a recovery pipe 402, a circulation pump 403, a mounting seat 405, a body bracket 406 and a liquid exchange pipe 409. The treatment tank body 1 is fixedly installed with a pipe support 401 at the right end, and a recovery pipe 402 is fixedly installed on the pipe support 401. The recovery pipe 402 is plugged into the treatment tank body 1, and the end of the recovery pipe 402 away from the treatment tank body 1 is fixedly connected with a circulation pump 403, and the circulation pump 403 is fixedly connected with the injection pipe 404. A mounting seat 405 is arranged above the pipe support 401, and an organic support 406 is fixedly installed on the upper end of the mounting seat 405. A liquid exchange pipe 409 is fixedly installed at the lower end of the treatment tank body 1; the first air pipe 302 guides the exhaust gas into the treatment tank body 1, and the second air pipe 304 guides the exhaust gas to leave the treatment tank body 1. The partition 305 is used to form a specific flow path in the treatment tank body 1, and guides the exhaust gas to rotate and flow in the treatment tank body 1. The design of the rotating flow significantly improves the gas-liquid contact efficiency and promotes the desulfurization and denitrification reaction.

[0025] The flow guiding mechanism 3 includes a first connecting seat 301, a first air pipe 302, a second connecting seat 303, a second air pipe 304 and a partition 305. The first connecting seat 301 is fixedly installed at the left end of the processing tank body 1, the first air pipe 302 is fixedly installed at the left end of the first connecting seat 301, the second connecting seat 303 is fixedly installed at the front end of the processing tank body 1, the second air pipe 304 is fixedly installed at the front end of the second connecting seat 303, and the partition 305 is fixedly installed inside the processing tank body 1; the pipeline support 401 ensures the safety and stability of the pipeline, and the recovery pipe 40 2 is used to recover the alkaline solution from the treatment tank 1 to the circulation pump 403, effectively collecting the unreacted and unreacted solution after use, reducing the waste of the solution and improving the overall economic benefits. The circulation pump 403 is used to pump the alkaline solution from the recovery pipe 402 to the injection pipe 404 and the liquid collection pipe 407. The atomizing nozzle 408 is used to atomize the alkaline solution to increase the contact area with the exhaust gas. Through the atomizing nozzle 408, the efficient utilization and circulation of the solution are realized, and the desulfurization and denitrification efficiency is improved. The liquid replacement pipe 409 is used to regularly replace or regenerate the alkaline solution.

[0026] The working principle of the utility model is as follows: the integrated purification device for desulfurization and denitration of exhaust gas is composed of a treatment tank body 1, a ladder frame 2, a guide mechanism 3 and a circulating treatment mechanism 4. Before using the integrated purification device for desulfurization and denitration of exhaust gas, it is necessary to pre-connect the first air pipe 302 and the second air pipe 304 in the guide mechanism 3 to the exhaust gas delivery pipeline, connect the circulation pump 403 to the power supply and the control terminal, and pre-store an alkaline solution in the lower layer of the treatment tank body 1. When using the integrated purification device for desulfurization and denitration of exhaust gas, the exhaust gas is input into the treatment tank body 1 through the first air pipe 302 and output through the second air pipe 304. In this process, the circulating treatment mechanism 4 is started, and the circulating pump 403 inside the circulating treatment mechanism 4 transfers the alkaline solution through the recovery pipe 402. It is pumped into the injection pipe 404 and the collection pipe 407, and then atomized and sprayed out through six groups of atomizing nozzles 408, covering the entire space of the treatment tank 1, so that the alkaline solution is fully in contact with the exhaust gas, a chemical reaction occurs, and corresponding water and salts are produced; in summary, the guide mechanism 3 is connected to the exhaust gas delivery end, and is used to directly install the purification device on the exhaust gas generation end, thereby achieving the effect of quickly treating sulfur and nitrate in the exhaust gas during the exhaust gas transportation process, and the circulating treatment mechanism 4 adopts multiple atomizing nozzles 408 to spray the alkaline solution, so that the exhaust gas is more completely in contact with the alkaline solution, thereby achieving a more efficient exhaust gas treatment effect; and the circulating treatment mechanism 4 can also recycle the alkaline solution, reduce the waste of the alkaline solution, and reduce the cost of use.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated exhaust gas desulfurization and denitrification purification device, comprising a treatment tank body (1), a ladder frame (2) being fixedly mounted at the rear end of the treatment tank body (1), characterized in that: A flow guide mechanism (3) is arranged on the left side of the processing tank body (1), and a circulation type processing mechanism (4) is arranged on the right side of the processing tank body (1). The circulation type processing mechanism (4) comprises a liquid injection pipe (404), a liquid collection pipe (407) and an atomizing nozzle (408). The liquid injection pipe (404) is fixedly installed on the upper end of the processing tank body (1), and the liquid collection pipe (407) is fixedly installed on the lower end of the liquid injection pipe (404). The atomizing nozzle (408) is fixedly installed on the outer wall of the liquid collection pipe (407). Six groups of the atomizing nozzles (408) are evenly plugged into the liquid collection pipe (407) with the midpoint of the liquid collection pipe (407) as the axis.

2. The integrated exhaust gas desulfurization and denitrification purification device according to claim 1, characterized in that: The circulating treatment mechanism (4) further comprises a pipe support (401), a recovery pipe (402), a circulation pump (403), a mounting seat (405), a body support (406) and a liquid exchange pipe (409), and the pipe support (401) is fixedly mounted on the right end of the treatment tank body (1).

3. The integrated exhaust gas desulfurization and denitrification purification device according to claim 2 is characterized in that: A recovery pipe (402) is fixedly mounted on the pipe support (401), and the recovery pipe (402) is plugged into the processing tank (1).

4. The integrated exhaust gas desulfurization and denitrification purification device according to claim 3 is characterized in that: One end of the recovery pipe (402) away from the treatment tank (1) is fixedly connected to a circulation pump (403), and the circulation pump (403) is fixedly connected to the injection pipe (404).

5. The integrated exhaust gas desulfurization and denitrification purification device according to claim 4, characterized in that: A mounting seat (405) is arranged above the pipeline support (401), an organism support (406) is fixedly mounted on the upper end of the mounting seat (405), and a liquid replacement pipe (409) is fixedly mounted on the lower end of the processing tank (1).

6. The integrated exhaust gas desulfurization and denitrification purification device according to claim 1, characterized in that: The flow guiding mechanism (3) comprises a first connecting seat (301), a first air pipe (302), a second connecting seat (303), a second air pipe (304) and a partition (305); the first connecting seat (301) is fixedly mounted on the left end of the processing tank body (1); and the first air pipe (302) is fixedly mounted on the left end of the first connecting seat (301).

7. The integrated exhaust gas desulfurization and denitrification purification device according to claim 6, characterized in that: A second connecting seat (303) is fixedly mounted on the front end of the processing tank body (1), a second air pipe (304) is fixedly mounted on the front end of the second connecting seat (303), and a partition plate (305) is fixedly mounted inside the processing tank body (1).

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