Boiler waste gas treatment device

Abstract

The utility model discloses a boiler waste gas treatment device, which belongs to the technical field of waste gas treatment and comprises a treatment box, a smoke inlet pipe inserted into the treatment box from the bottom end of the treatment box and an exhaust port arranged at the top of the treatment box. And one end of the liquid spraying pipe extends to the outer side of the treatment box. According to the waste gas treatment device, the flow guide cover is arranged at the top end of the smoke inlet pipe, and the atomization spray head communicated with the liquid spray pipe is arranged in the flow guide cover, so that in the waste gas treatment process, the waste gas can be in contact with atomized treatment liquid firstly for primary treatment, and in addition, air holes are formed in the bottom of the flow guide cover; the gas holes are located below the treatment liquid at the bottom in the treatment box, and gas can enter the treatment liquid after being discharged from the gas holes, so that the contact area with the treatment liquid is increased, and the waste gas treatment effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a waste gas treatment device, in particular to a boiler waste gas treatment device, belongs to waste gas treatment technical field. BACKGROUND

[0002] In the prior art, such as the application number for 202310302570.5, a boiler waste gas treatment device is disclosed, in order to solve the problem that the contact time of flue gas and treatment liquid is short and the volume of water droplets in the process of treatment liquid spraying is too large and the reaction is not sufficient when the water droplets contact the flue gas, by adding connecting shaft, turbulence fan and straight gear structure on the spraying frame, the turbulence fan can be driven to rotate by the meshing between the straight gear and the external gear ring during the rotation of the spraying frame, the turbulence fan can break the water flow during rotation, which can make the treatment liquid more refined to contact the flue gas, thereby increasing the reaction efficiency, additionally, the float ball, sealing plate and connecting rod structure are arranged in the inside of the liquid discharge pipe, when the flue gas is treated, the sprayed treatment liquid is stored at the bottom of the treatment box, when the height of the treatment liquid reaches a certain height, the float ball can drive the sealing plate to move, which can discharge the liquid at the bottom of the treatment box, thereby effectively increasing the residence time of the liquid in the treatment box, which can effectively increase the reaction time and avoid the waste of treatment liquid.

[0003] The above-mentioned application still has some deficiencies:

[0004] The treatment liquid is collected at the bottom of the treatment box, and the height of the liquid surface is lower than the discharge height of the flue gas, although the effect of the turbulence fan can control the downward movement when the flue gas flows out, it can only contact the surface of the treatment liquid, the contact area is small, and the treatment effect of the waste gas is not good.

[0005] Therefore, the boiler waste gas treatment device is designed to optimize the above-mentioned problems. CONTENT OF THE UTILITY MODEL

[0006] The main purpose of the utility model is to provide a boiler waste gas treatment device to solve the problems raised in the background art.

[0007] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0008] The utility model provides a boiler exhaust gas treatment device, including processing box, from the bottom end of processing box inserts into the inside of processing box and the exhaust port of opening in the top of processing box, the top of inlet pipe is equipped with the fairwater, the inside of fairwater is transversely installed with liquid injection pipe, and one end of liquid injection pipe extends to the outside of processing box, and the below of one end of liquid injection pipe in the inside of fairwater is evenly installed with atomizing nozzle, and the bottom of processing box is equipped with processing liquid, and the bottom of fairwater is below processing liquid, and the bottom of fairwater is evenly opened with air hole along the circumference, and the outside of fairwater is equipped with the turbulence mechanism, and the bottom of processing box is equipped with the sediment discharge mechanism.

[0009] Preferably, the top end of the exhaust port is provided with a cover, and the inner top of the processing box and below the exhaust port is provided with a baffle demister.

[0010] Preferably, the outside of the processing box is vertically provided with a transparent window, and the transparent window is provided with a liquid level line.

[0011] Preferably, the turbulence mechanism comprises a floating plate, a vertical rod, a lever, a strip-shaped slot and a limiting rod, the floating plate floats on the surface of the processing liquid and is located outside the fairwater, the bottom of the floating plate is evenly provided with the vertical rod, the bottom end of the vertical rod is hingedly installed with the lever, the limiting rod is vertically installed on the floating plate of the side of the vertical rod, the limiting rod respectively passes through the inside of the lever, and the lever is provided with the strip-shaped slot matched with the limiting rod.

[0012] Preferably, the shape of the floating plate is a circular ring, the fairwater passes through the inside of the floating plate, and the floating plate and the fairwater are vertically and slidably connected.

[0013] Preferably, the sediment discharge mechanism comprises a mounting slot, a piston, a spring, a slide rod and a flow guide hole, the mounting slot is evenly provided in the bottom end of the processing box, the inside of the mounting slot is vertically and slidably provided with the piston, the bottom of the piston and the bottom end of the mounting slot are provided with the spring, the bottom of the piston is vertically fixed with the slide rod, the slide rod is slidably connected with the processing box, and the side of the mounting slot is provided with the flow guide hole communicated with the bottom of the processing box.

[0014] Preferably, the bottom of the processing box is fixed with an annular collecting groove, the bottom end of the plurality of flow guide holes is communicated with the inside of the annular collecting groove, and the side of the annular collecting groove is provided with a drainage pipe.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] 1. The utility model discloses a boiler exhaust gas treatment device, including processing box, from the bottom end of processing box inserts into the inside of processing box and the exhaust port of opening in the top of processing box, the top of inlet pipe is equipped with the fairwater, the inside of fairwater is transversely installed with liquid injection pipe, and one end of liquid injection pipe extends to the outside of processing box, and the below of one end of liquid injection pipe in the inside of fairwater is evenly installed with atomizing nozzle, and the bottom of processing box is equipped with processing liquid, and the bottom of fairwater is below processing liquid, and the bottom of fairwater is evenly opened with air hole along the circumference, and the outside of fairwater is equipped with the turbulence mechanism, and the bottom of processing box is equipped with the sediment discharge mechanism.

[0017] 2、The utility model discloses a turbulence mechanism that is formed by the float plate, vertical rod, push plate, strip groove and limiting rod which are arranged outside the fairing, the float plate is located above the processing liquid at the bottom of the processing box, when the exhaust gas is discharged from the processing liquid, the up-and-down shaking of the float plate is controlled, the up-and-down shaking of the float plate drives the swing of the push plate, the flowability of the processing liquid is increased, and the contact effect of the processing liquid and the exhaust gas is improved again, in addition, the turbulence process does not need power drive, and the utility is more energy-saving. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the front view of the utility model;

[0019] Figure 2 It is the front view of the utility model;

[0020] Figure 3 It is the Figure 1 Enlarged view of A place in the middle;

[0021] Figure 4 It is the Figure 1 Enlarged view of B place in the middle.

[0022] Fig. 1, the smoke inlet pipe;

[0023] 2, the processing box;201, the exhaust port;

[0024] 3, the fairing;

[0025] 4, liquid injection pipe;401, atomizing nozzle;

[0026] 5, air hole;

[0027] 6, turbulence mechanism;601, float plate;602, vertical rod;603, push plate;604, strip groove;605, limiting rod;

[0028] 7, sediment discharge mechanism;701, mounting groove;702, piston;703, spring;704, sliding rod;705, flow guide hole;706, annular collection groove. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantage of the utility model embodiment more clear, the technical scheme in the utility model embodiment will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment.

[0030] Therefore, the following detailed description of the embodiments of the present application is not intended to limit the scope of the claimed application, but merely to represent some embodiments of the application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0031] It should be noted that the embodiments in the present application and the features and technical solutions in the embodiments can be combined with each other without conflict.

[0032] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0033] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product is used, or the orientation or positional relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", etc. are only used for differentiation, and cannot be understood as indicating or implying relative importance.

[0034] Embodiment 1

[0035] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , the present embodiment proposes a boiler exhaust gas treatment device, which comprises a treatment box 2, a smoke inlet pipe 1 inserted into the inside of the treatment box 2 from the bottom end of the treatment box 2, and an exhaust port 201 opened at the top of the treatment box 2. The top end of the smoke inlet pipe 1 is provided with a flow guide cover 3, the inside of the flow guide cover 3 is transversely provided with a liquid injection pipe 4, one end of the liquid injection pipe 4 extends to the outside of the treatment box 2, and the liquid injection pipe 4 is uniformly provided with atomizing nozzles 401 below the inside end of the flow guide cover 3. The inner bottom of the treatment box 2 is provided with a treatment liquid, the bottom end of the flow guide cover 3 is below the treatment liquid, the bottom of the flow guide cover 3 is uniformly provided with air holes 5 in the circumferential direction, the outside of the flow guide cover 3 is provided with a flow disturbing mechanism 6, and the bottom of the treatment box 2 is provided with a sediment discharge mechanism 7.

[0036] Before use, a certain amount of treatment liquid is first injected into the inside of the treatment box 2, and the treatment liquid covers the air holes 5. When in use, the exhaust gas generated by the boiler first enters the inside of the flow guide cover 3, the treatment liquid passes through the liquid injection pipe 4 and is sprayed out through the atomizing nozzle 401. After atomization, the treatment liquid first contacts the exhaust gas to perform a preliminary reaction. Then, the exhaust gas passes through the air holes 5 and enters the inside of the treatment liquid below to perform a secondary reaction. After the exhaust gas enters the inside of the treatment liquid, the treatment liquid is stirred by the flow disturbing mechanism 6 to increase the flowability of the treatment liquid, so as to improve the treatment effect with the exhaust gas. The atomized treatment liquid enters the bottom of the treatment box 2 together with the exhaust gas. The amount of the treatment liquid at the bottom of the treatment box 2 is increased. In addition, the impurities in the exhaust gas also precipitate to the bottom of the treatment box 2. After the amount of the treatment liquid is increased to a certain amount, the bottom impurities and the increased treatment liquid are discharged by the sediment discharge mechanism 7 to ensure that the amount of the treatment liquid is fixed.

[0037] Embodiment 2

[0038] The scheme in Embodiment 1 is further introduced in combination with a specific working mode, and details are described below.

[0039] As shown in Figure 1 , as a preferred embodiment, on the basis of the above mode, further, the top end of the exhaust port 201 is provided with a cover, and the inner top of the treatment box 2 and located below the exhaust port 201 is provided with a baffle demister. After the exhaust gas passes through the treatment liquid, the breaking of the bubbles will produce a certain amount of water mist. At this time, the baffle on the baffle demister guides and changes the direction of the airflow. The liquid droplets in the gas lose kinetic energy when they hit the baffle and settle down, thereby achieving the purpose of demisting.

[0040] As shown in Figure 2 , as a preferred embodiment, on the basis of the above mode, further, a transparent window is vertically provided on the outside of the treatment box 2, and a liquid level line is provided on the transparent window, which can facilitate observation of the amount of treatment liquid in the treatment box 2 during use.

[0041] As shown in Figure 3 , as a preferred embodiment, on the basis of the above mode, further, the flow disturbing mechanism 6 includes a floating plate 601, a vertical rod 602, a push plate 603, a strip-shaped groove 604, and a limiting rod 605. The floating plate 601 floats on the surface of the treatment liquid and is located outside the flow guide cover 3. The bottom of the floating plate 601 is uniformly provided with the vertical rod 602. The bottom end of the vertical rod 602 is hingedly installed with the push plate 603. The limiting rod 605 is vertically installed on the floating plate 601 at the side of the vertical rod 602. The limiting rod 605 respectively passes through the inside of the push plate 603. The push plate 603 is provided with the strip-shaped groove 604 matched with the limiting rod 605.

[0042] When the gas is discharged from the air hole 5, the bubbles will float upwards and exert an upward force on the floating plate 601. When the floating plate 601 moves upwards, the supporting force of the liquid on the floating plate 601 decreases, and the floating plate 601 will move downwards due to the effect of gravity, thus the floating plate 601 will move up and down. The up and down movement of the floating plate 601 will drive the push plate 603 to move up and down, and the push plate 603 is limited by the limiting rod 605, thus the push plate 603 will swing when moving up and down, so as to increase the flow of the liquid in the treatment liquid.

[0043] As shown in Figure 3 , as a preferred embodiment, on the basis of the above-mentioned mode, further, the shape of the floating plate 601 is a circular ring, the flow guide cover 3 passes through the inside of the floating plate 601, and the floating plate 601 is vertically and slidingly connected with the flow guide cover 3. The floating plate 601 is limited by the flow guide cover 3 during use, so as to ensure the up and down floating effect of the floating plate 601.

[0044] As shown in Figure 4 , as a preferred embodiment, on the basis of the above-mentioned mode, further, the sediment discharge mechanism 7 comprises a mounting groove 701, a piston 702, a spring 703, a sliding rod 704 and a flow guide hole 705. The mounting groove 701 is evenly arranged at the inner bottom end of the treatment tank 2, the piston 702 is vertically and slidingly arranged in the inside of the mounting groove 701, the spring 703 is arranged between the bottom of the piston 702 and the bottom end of the mounting groove 701, the sliding rod 704 is vertically and fixedly arranged at the bottom of the piston 702, the sliding rod 704 is slidingly connected with the treatment tank 2, and the flow guide hole 705 is arranged at the side of the mounting groove 701 and communicated with the inner bottom of the treatment tank 2.

[0045] During use, the treatment liquid in the treatment tank 2 will exert a certain downward pressure on the piston 702. When the downward pressure is small, the piston 702 will block the flow guide hole 705. When the treatment liquid and the sediment at the bottom of the treatment tank 2 increase, the downward pressure on the piston 702 increases, the piston 702 moves downwards and compresses the spring 703, and the excess treatment liquid and sediment at the bottom of the treatment tank 2 are discharged through the flow guide hole 705.

[0046] As shown in Figure 1 and Figure 4 , as a preferred embodiment, on the basis of the above-mentioned mode, further, the bottom of the treatment tank 2 is fixedly provided with a ring-shaped collecting groove 706, the bottom end of each group of flow guide holes 705 is communicated with the inside of the ring-shaped collecting groove 706, and the side of the ring-shaped collecting groove 706 is provided with a drainage pipe. The liquid discharged from the flow guide hole 705 is collected by the ring-shaped collecting groove 706 and then discharged from the drainage pipe.

[0047] Example 3

[0048] The schemes in Embodiment 1 and Embodiment 2 are further described below in combination with specific working modes, and details are described below:

[0049] Before use, a certain amount of treatment liquid is first injected into the inside of the treatment box 2, and the treatment liquid covers the air holes 5. When in use, the exhaust gas generated by the boiler first enters the inside of the flow guide cover 3, the treatment liquid passes through the liquid injection pipe 4 and is sprayed out through the atomizing spray head 401. After atomization, the treatment liquid first contacts the exhaust gas to perform a preliminary reaction. Then, the exhaust gas passes through the air holes 5 and enters the inside of the treatment liquid below to perform a secondary reaction. After the exhaust gas enters the inside of the treatment liquid, the bubbles will float upwards to exert an upward force on the floating plate 601. When the floating plate 601 moves upwards, the support force of the liquid on the floating plate 601 decreases, and the floating plate 601 will move downwards again due to the action of gravity. Therefore, the floating plate 601 will appear to sway up and down. The upward and downward movement of the floating plate 601 will drive the push plate 603 to move up and down. Since the push plate 603 is limited by the limiting rod 605, the push plate 603 will appear to swing when moving up and down, so as to increase the flow of the liquid in the treatment liquid. In addition, in the process of use, the treatment liquid in the treatment box 2 will exert a certain downward pressure on the piston 702. When the downward pressure is small, the piston 702 will block the flow guide hole 705 at this time. When the treatment liquid and the sediment at the bottom of the treatment box 2 increase, the downward pressure on the piston 702 increases at this time. The piston 702 will move downwards and compress the spring 703. The excess treatment liquid and sediment at the bottom of the treatment box 2 will be discharged through the flow guide hole 705.

[0050] The above is only further embodiments of the present application, but the protection scope of the present application is not limited thereto. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and concept of the present application within the scope disclosed by the present application, which shall be within the protection scope of the present application.

Claims

1. A boiler flue gas treatment device, comprising a treatment box (2), a flue gas inlet pipe (1) inserted into the inside of the treatment box (2) from the bottom end of the treatment box (2), and an exhaust port (201) opened at the top of the treatment box (2), characterized in that: The top end of the smoke inlet pipe (1) is provided with a fairing (3), the inside of the fairing (3) is transversely provided with a liquid injection pipe (4), one end of the liquid injection pipe (4) extends to the outside of the treatment box (2), the lower end of the inside of the fairing (3) is uniformly provided with an atomizing nozzle (401), the bottom of the inside of the treatment box (2) is provided with a treatment liquid, the bottom of the fairing (3) is below the treatment liquid, the bottom of the fairing (3) is uniformly provided with air holes (5) in the circumferential direction, the outside of the fairing (3) is provided with a turbulence mechanism (6), and the bottom of the treatment box (2) is provided with a sediment discharge mechanism (7).

2. The boiler exhaust treatment apparatus according to claim 1, characterized by: The top end of the exhaust port (201) is provided with a cover, and the inner top of the treatment box (2) and below the exhaust port (201) is provided with a baffle demister.

3. The boiler exhaust treatment apparatus according to claim 1, characterized by: The outside of the treatment box (2) is vertically provided with a transparent window, and the transparent window is provided with a liquid level line.

4. The boiler exhaust treatment apparatus according to claim 1, characterized by: The turbulence mechanism (6) comprises a floating plate (601), a vertical rod (602), a push plate (603), a strip-shaped groove (604) and a limiting rod (605), the floating plate (601) floats on the surface of the treatment liquid and is located outside the fairing (3), the bottom of the floating plate (601) is uniformly provided with the vertical rod (602), the bottom end of the vertical rod (602) is hingedly provided with the push plate (603), the floating plate (601) on the side of the vertical rod (602) is vertically provided with the limiting rod (605), the limiting rod (605) respectively passes through the inside of the push plate (603), and the push plate (603) is provided with the strip-shaped groove (604) matched with the limiting rod (605).

5. The boiler flue gas treatment apparatus according to claim 4, characterized in that: The shape of the floating plate (601) is a circular ring, the fairing (3) passes through the inside of the floating plate (601), and the floating plate (601) and the fairing (3) are vertically and slidably connected.

6. The boiler exhaust treatment apparatus according to claim 1 or 4, characterized by: The sediment discharge mechanism (7) comprises a mounting groove (701), a piston (702), a spring (703), a sliding rod (704) and a flow guide hole (705), the mounting groove (701) is uniformly provided at the inner bottom end of the treatment box (2), the inside of the mounting groove (701) is vertically and slidably provided with the piston (702), the bottom of the piston (702) and the bottom end of the mounting groove (701) are provided with the spring (703), the bottom of the piston (702) is vertically fixed with the sliding rod (704), the sliding rod (704) and the treatment box (2) are slidably connected, and the side of the mounting groove (701) is provided with the flow guide hole (705) communicated with the bottom of the treatment box (2).

7. The boiler flue gas treatment apparatus according to claim 6, characterized in that: The bottom of the treatment box (2) is fixedly provided with an annular collecting groove (706), the bottom of the flow guide hole (705) is communicated with the inside of the annular collecting groove (706), and the side of the annular collecting groove (706) is provided with a drainage pipe.

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