CN220573100U - Desulfurizing device and tail gas treatment equipment - Google Patents

Abstract

The application provides a desulfurization device and tail gas treatment equipment. The desulfurization device comprises a shell, a desulfurization mechanism, an air inlet pipe and an air outlet pipe, wherein an air inlet is formed at one end of the air inlet pipe, an air outlet is formed at one end of the air outlet pipe, a containing cavity is formed in the shell, the air inlet, the containing cavity and the air outlet are sequentially communicated, and the desulfurization mechanism is arranged in the containing cavity; the desulfurization mechanism comprises a corrugated component and a temperature control component, the corrugated component is arranged in the accommodating cavity, a desulfurization reaction channel is formed in the corrugated component, the desulfurization reaction channel is respectively communicated with the air inlet pipe and the air outlet pipe, a heating cavity is formed between the corrugated component and the inner wall of the accommodating cavity, and the temperature control component is arranged in the heating cavity. The desulfurization device improves the desulfurization effect of tail gas.

Description

Desulfurizing device and tail gas treatment equipment

Technical Field

The utility model relates to the technical field of tail gas treatment equipment, in particular to a desulfurization device and tail gas treatment equipment.

Background

The main pollutant in the tail gas generated in the sulfuric acid production process is sulfur dioxide, the tail gas is treated to treat the sulfur dioxide therein, the main treatment method at present is an ammonia acid method, the tail gas is introduced into ammonia water, the chemical properties of the ammonia water and the sulfur dioxide are utilized to enable the ammonia water and the sulfur dioxide to react to form ammonium sulfite and ammonium bisulfide, and then the decomposition and the neutralization treatment are carried out.

The existing tail gas treatment equipment is a desulfurization device for desulfurizing tail gas, as disclosed in Chinese patent CN204799088U, and comprises a main tail gas pipe connected to the inner bottom wall of a desulfurization tower, a liquid inlet pipe and a water inlet pipe connected to the main tail gas pipe, a water inlet pipe connected to the desulfurization tower, a liquid outlet pipe connected to the inner bottom wall of the desulfurization tower, and a circulating pump connected to a mixer through a pipeline, wherein the mixer is connected to a primary oxidation tank through a pipeline and connected to a secondary oxidation tank; however, when the desulfurization device is used for desulfurizing the tail gas, the contact time of the tail gas and ammonia water is short, the reaction temperature does not reach the optimal temperature required by the desulfurization reaction, the desulfurization reaction is incomplete, and the desulfurization effect of the tail gas is reduced.

Disclosure of Invention

The utility model aims to solve the problem of poor tail gas desulfurization effect and provides a desulfurization device and tail gas treatment equipment with good tail gas desulfurization effect.

The aim of the utility model is realized by the following technical scheme:

the desulfurization device comprises a shell, a desulfurization mechanism, an air inlet pipe and an air outlet pipe, wherein an air inlet is formed at one end of the air inlet pipe, an air outlet is formed at one end of the air outlet pipe, a containing cavity is formed in the shell, the air inlet, the containing cavity and the air outlet are sequentially communicated, and the desulfurization mechanism is arranged in the containing cavity;

the desulfurization mechanism comprises a corrugated component and a temperature control component, wherein the corrugated component is arranged in the accommodating cavity, a desulfurization reaction channel is formed in the corrugated component, the desulfurization reaction channel is respectively communicated with the air inlet pipe and the air outlet pipe, a heating cavity is formed between the corrugated component and the inner wall of the accommodating cavity, the temperature control component is arranged in the heating cavity, and the temperature control component is used for controlling the temperature in the desulfurization reaction channel.

In one embodiment, the desulfurization device further comprises an air inlet hopper and an air outlet hopper, wherein the air inlet hopper is arranged between the air inlet pipe and the shell, and the air outlet hopper is arranged between the air inlet pipe and the shell; the air inlet hopper is provided with an air inlet cavity communicated with the air inlet pipe, and the cross section area of the air inlet cavity is gradually increased in the direction from the air inlet pipe to the shell; the air outlet hopper is provided with an air outlet cavity communicated with the air outlet pipe, the cross section area of the air outlet cavity gradually decreases gradually in the direction from the shell to the air outlet pipe, and the air inlet cavity and the air outlet cavity are respectively communicated with the desulfurization reaction channel; the air inlet is formed at one end of the air inlet pipe, which is far away from the air inlet hopper.

In one embodiment, the desulfurization device further comprises a central pipeline, the diameter of the central pipeline is smaller than that of the air inlet pipe, the central pipeline is arranged in the air inlet pipe, one end of the central pipeline is fixed in the air inlet, the other end of the central pipeline extends in the air inlet cavity, and the heights of the air inlet and the air outlet are higher than those of the shell.

In one embodiment, the desulfurization device further comprises a slow flow rod assembly, the slow flow rod assembly is arranged in the air outlet hopper, a plurality of slow flow gaps are formed in the slow flow rod assembly, and each slow flow gap is communicated with the air outlet pipe.

In one embodiment, the corrugated plate assembly comprises a plurality of corrugated plates, the corrugated plates are arranged in the accommodating cavity at equal intervals in the vertical direction, one desulfurization reaction channel is formed between every two adjacent corrugated plates, the uppermost corrugated plate is connected to the inner top wall of the accommodating cavity, and the lowermost corrugated plate is connected to the inner bottom wall of the accommodating cavity.

In one embodiment, the temperature control assembly comprises a first temperature control rod and a second temperature control rod, the first temperature control rod is arranged between the corrugated plate at the uppermost side and the inner wall of the accommodating cavity, and the second temperature control rod is arranged between the corrugated plate at the lowermost side and the inner wall of the accommodating cavity.

In one embodiment, the corrugated plate at the uppermost side and the inner top wall of the accommodating cavity enclose a plurality of first heating cavities, the number of the first temperature control rods is a plurality of, and the plurality of first temperature control rods are arranged in the plurality of first heating cavities in a one-to-one correspondence manner.

In one embodiment, the corrugated plate at the lowest side and the inner bottom wall of the accommodating cavity enclose a plurality of second heating cavities, the number of the second temperature control rods is a plurality of, and the plurality of second temperature control rods are arranged in the plurality of second heating cavities in a one-to-one correspondence manner.

In one embodiment, the housing further comprises a first blocking plate and a second blocking plate; the first heating cavity adjacent to the air inlet pipe is communicated with the air inlet pipe, the first plugging plate is arranged between the first heating cavity and the air inlet pipe, and the first plugging plate is respectively connected with the corrugated plate at the lowest side and the inner bottom wall of the accommodating cavity;

the second heating cavity adjacent to the air outlet pipe is communicated with the air outlet pipe, the second plugging plate is arranged between the second heating cavity and the air outlet pipe, and the second plugging plate is respectively connected with the corrugated plate at the uppermost side and the inner top wall of the accommodating cavity.

In one embodiment, the desulfurization device further comprises a base, wherein the base is fixedly connected with the shell, and the base is arranged at the lower end of the shell.

An exhaust gas treatment apparatus comprising a desulfurization device according to any one of the embodiments described above.

The present utility model includes, but is not limited to, the following advantages over the prior art:

1) In the desulfurization device, the air inlet, the accommodating cavity and the air outlet are sequentially communicated, and the desulfurization mechanism is arranged in the accommodating cavity and is used for removing sulfur-containing components in the tail gas so as to achieve the purpose of desulfurizing the tail gas;

2) Because a desulfurization reaction channel is formed between every two adjacent corrugated plates and is respectively communicated with the air inlet and the air outlet, the distance of the tail gas passing through the accommodating cavity is prolonged, the reaction contact time of the tail gas and ammonia water is prolonged, and the desulfurization reaction effect is improved;

3) The temperature control components are arranged at two sides of the desulfurization reaction channel of the corrugated component, and are used for regulating and controlling the temperature in the desulfurization reaction channel so as to ensure that the optimal temperature for the reaction between sulfur and ammonia water is reached in the desulfurization reaction channel, further, sulfur components in the tail gas can fully react with the ammonia water, and the desulfurization effect of the tail gas is improved;

4) The gas inlet cavity and the gas outlet cavity are both communicated with the desulfurization reaction channel, so that tail gas can slowly enter the desulfurization reaction channel through the gas inlet cavity and slowly exhaust the desulfurization reaction channel through the gas outlet cavity, the reaction contact time of the tail gas and ammonia water is prolonged, and the desulfurization reaction effect is improved;

5) The central pipeline is arranged in the air inlet pipe, the diameter of the central pipeline is smaller than that of the air inlet pipe, the reaction contact time of tail gas and ammonia water is prolonged, and the desulfurization reaction effect is improved;

6) The slow flow rod assembly is arranged in the air outlet cavity, the slow flow rod assembly is arranged adjacent to the air outlet, a plurality of slow flow gaps are formed in the slow flow rod assembly, each slow flow gap is communicated with the air outlet, the flow speed of tail gas passing through the air outlet cavity is slowed down, and then the contact time between the tail gas and ammonia water is prolonged.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view showing a structure of a desulfurization apparatus according to an embodiment;

FIG. 2 is a schematic view showing an internal structure of the desulfurization apparatus shown in FIG. 1;

FIG. 3 is a schematic view showing another internal structure of the desulfurization apparatus shown in FIG. 1;

fig. 4 is a schematic view showing a partial structure of the desulfurization apparatus shown in fig. 1.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the utility model. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 4, the desulfurization apparatus 10 of an embodiment includes a housing 100, a desulfurization mechanism 200, an air inlet pipe 500, and an air outlet pipe 700. An air inlet 510 is formed at one end of the air inlet pipe 500, and an air outlet 710 is formed at one end of the air outlet pipe 700. The housing 100 is formed with a receiving chamber 110, and the air inlet 510, the receiving chamber 110 and the air outlet 710 are sequentially communicated, and the desulfurization mechanism 200 is disposed in the receiving chamber 110. In this embodiment, the air inlet pipe 600 is formed with an air inlet 510, the air outlet pipe 700 is formed with an air outlet 710, so that the exhaust gas can enter the accommodating cavity 110 through the air inlet 510, and the exhaust gas in the accommodating cavity 110 is discharged through the air outlet 710, the desulfurization mechanism 200 is used for removing sulfur-containing components in the exhaust gas, and the desulfurization mechanism 200 is disposed in the accommodating cavity 110, so that the exhaust gas achieves the desulfurization effect.

Further, the desulfurization mechanism 200 includes a bellows assembly 210 and a temperature control assembly 220, the bellows assembly 210 is disposed in the accommodating cavity 110, the bellows assembly 210 is formed with a desulfurization reaction channel 212, the desulfurization reaction channel 212 is respectively communicated with the air inlet pipe 500 and the air outlet pipe, that is, the desulfurization reaction channel 212 is respectively communicated with the air inlet 510 and the air outlet 710, so as to prolong the distance of the tail gas passing through the accommodating cavity 110, and further prolong the contact time of the tail gas and the ammonia water. A heating chamber 210a is formed between the corrugated component 210 and the inner wall of the accommodating chamber 110, a temperature control component 220 is disposed in the heating chamber, and the temperature control component 220 is used for controlling the temperature in the desulfurization reaction channel 212, so that the optimal temperature for the reaction between sulfur and ammonia water is reached in the desulfurization reaction channel 212. It should be noted that, the method of adjusting the temperature in the desulfurization reaction channel 212 by the temperature control assembly 220 belongs to the prior art, and will not be described herein.

In this embodiment, when the exhaust gas needs to be treated, firstly, ammonia water is injected into the accommodating chamber 110 from the gas outlet 710 until the ammonia water fills the entire accommodating chamber 110; then, the tail gas is injected from the air inlet 510, and after the tail gas enters the desulfurization reaction channel 212 through the air inlet 510, the desulfurization device 10 controls the temperature control assembly 220 to adjust the temperature in the desulfurization reaction channel 212 so that the temperature in the desulfurization reaction channel 212 reaches the optimal temperature for the reaction of ammonia water and sulfur; finally, the sulfur component in the tail gas reacts with the ammonia water and reaches the gas outlet 710 through the desulfurization reaction channel 212, and the tail gas from which the sulfur component is removed is discharged from the gas outlet 710.

In the desulfurization device 10, since the air inlet 510, the accommodating chamber 110 and the air outlet 710 are sequentially communicated, the desulfurization mechanism 200 is used for removing sulfur-containing components in the tail gas, so that the tail gas achieves the purpose of desulfurization, and the desulfurization mechanism 200 is disposed in the accommodating chamber 110; because the desulfurization reaction channel 212 is formed on the corrugated component 210, and the desulfurization reaction channel 212 is respectively communicated with the air inlet 510 and the air outlet 710, so as to prolong the distance of the tail gas passing through the accommodating cavity 110, further prolong the contact time of the tail gas and ammonia water, the temperature control component 220 regulates and controls the temperature in the desulfurization reaction channel 212, so that the optimal temperature for the reaction between sulfur and ammonia water is reached in the desulfurization reaction channel 212, further the sulfur component in the tail gas can fully react with the ammonia water, and the desulfurization effect of the tail gas is improved.

As shown in fig. 1, in one embodiment, the desulfurization device 10 further includes an air inlet hopper 300 and an air outlet hopper 400, the air inlet hopper 300 is disposed between the air inlet pipe 500 and the housing 100, and the air outlet hopper 400 is disposed between the air inlet pipe 500 and the housing 100, so that the air inlet hopper 300 and the air outlet hopper 400 are respectively and fixedly connected to two end sides of the housing 100.

As shown in fig. 1 to 2, in one of the embodiments, the intake bucket 300 is formed with an intake chamber 310 communicating with an intake pipe 500, and the cross-sectional area of the intake chamber 310 gradually increases in the direction of the intake pipe 500 to the housing 100. The air outlet hopper 400 is formed with an air outlet cavity 410 communicated with the air outlet pipe 700, and the cross-sectional area of the air outlet cavity 410 gradually decreases gradually in the direction from the shell 100 to the air outlet pipe 700, so that the speed of the tail gas flowing out of the air outlet hopper 400 can be slowed down. In this embodiment, the air inlet chamber 310 and the air outlet chamber 410 are both communicated with the desulfurization reaction channel 212, and the air inlet 510 is formed at one end of the air inlet pipe 500 far away from the air inlet hopper 300, so that the tail gas can slowly enter the desulfurization reaction channel 212 through the air inlet chamber 310, reduce the vortex formed when the tail gas enters the accommodating chamber, and slowly exhaust the desulfurization reaction channel 212 through the air outlet chamber 410.

As shown in fig. 1 to 2, in one embodiment, the desulfurization apparatus 10 further includes a central pipe 600, the diameter of the central pipe 600 is smaller than that of the intake pipe 500, the central pipe 600 is disposed in the intake pipe 500, one end of the intake pipe 600 is fixed in the intake port 510, and the other end of the central pipe 600 extends in the intake chamber 310. The diameter of the central pipe 600 is smaller than that of the air inlet pipe 500, that is, the diameter of the central pipe 600 is smaller, and the central pipe 600 can slow down the rate of the exhaust gas entering the air inlet chamber 310, thereby prolonging the reaction contact time between the exhaust gas and the ammonia water. Also, the central pipe 600 is disposed in the air inlet pipe 500, the central pipe 600 communicates with the air inlet chamber 310 so that the exhaust gas can enter the air inlet chamber 310 through the central pipe 600, and the air outlet pipe 700 communicates with the air outlet chamber 410 so that the exhaust gas can be discharged from the air outlet chamber 410 through the air outlet pipe 700. In the present embodiment, the end of the central duct 600 located outside the accommodation chamber communicates with the air inlet 510, and the central duct 600 communicates with the air inlet chamber 310. Specifically, the air intake pipe 500 is sleeved on the air intake pipe 600, so that the air intake pipe 600 is reliably supported and fixed on the inner side of the air intake pipe 500, and the air intake pipe 600 is further stably and fixedly connected to the housing 100.

In one embodiment, the air inlet 510 is formed at an end of the central pipe 600 away from the air inlet funnel 300, so that the exhaust gas enters the central pipe 600 from the air inlet 510, and the air outlet 710 is formed at an end of the air outlet pipe 700 away from the air outlet funnel 400, so that the exhaust gas is discharged from the air outlet pipe 700 through the air outlet 710.

As shown in fig. 4, in one embodiment, the desulfurization apparatus 10 further includes a fixing member 800, where the fixing member 800 is disposed at the air inlet 510, and the fixing member 800 is used for fixedly connecting the central pipe 600 and the air inlet 500, so that the central pipe 600 is fixed on the air inlet 500.

As shown in fig. 1 to 2, in one embodiment, the air inlet 510 and the air outlet 710 are disposed at a height higher than the height of the housing 100, so as to avoid the ammonia water from being discharged from the air outlet 710 or the air inlet 510 when filling the accommodating chamber 110.

As shown in fig. 1 to 3, in one embodiment, the desulfurization apparatus 10 further includes a slow flow rod assembly 900, the slow flow rod assembly 900 is disposed in the air outlet cavity 410, and the slow flow rod assembly 900 is disposed adjacent to the air outlet 710, and a plurality of slow flow gaps 910 are formed in the slow flow rod assembly 900, each slow flow gap 910 is communicated with the air outlet pipeline 700, so that the flow rate of the tail gas passing through the air outlet cavity 410 is slowed down, and the contact time between the tail gas and the ammonia water is further prolonged. In this embodiment, the flow-retarding rod assembly 900 includes a plurality of flow-retarding rods arranged side by side, and a flow-retarding gap 910 is formed between two adjacent flow-retarding rods.

As shown in fig. 1 to 2, in one embodiment, the corrugated assembly 210 includes a plurality of corrugated plates 211, the corrugated plates 211 are arranged in the accommodating cavity 110 at equal intervals in the vertical direction, a desulfurization reaction channel 212 is formed between every two adjacent corrugated plates 211, the corrugated plate 211 at the uppermost side is welded to the inner top wall of the accommodating cavity 110, and the corrugated plate 211 at the lowermost side is welded to the inner bottom wall of the accommodating cavity 110, so that the tail gas is better dispersed through the accommodating cavity 110, and the reaction contact time between the tail gas and the ammonia water is prolonged and the reaction uniformity is better.

As shown in fig. 1 to 2, in one embodiment, the temperature control assembly 220 includes a first temperature control rod 221 and a second temperature control rod 222, the first temperature control rod 221 is disposed between the corrugated plate 211 located at the uppermost side and the inner wall of the accommodating cavity 110, and the second temperature control rod 222 is disposed between the corrugated plate 211 located at the lowermost side and the inner wall of the accommodating cavity 110, so that the temperature control assembly 220 can adjust the temperature in the desulfurization reaction channel 212, and the problem that the first temperature control rod 221 and the second temperature control rod 222 are disposed between two adjacent corrugated plates 211 to block the flow of the tail gas is avoided, so that the tail gas can better pass through the corrugated assembly. In the present embodiment, the first temperature control rod 221 and the second temperature control rod 222 are disposed in the heating chamber 210 a.

As shown in fig. 1 to 2, in one embodiment, the corrugated plate 211 at the uppermost side and the inner top wall of the accommodating cavity 110 enclose a plurality of first heating cavities 213, the number of the first temperature control rods 221 is plural, and the plurality of first temperature control rods 221 are disposed in the plurality of first heating cavities 213 in a one-to-one correspondence manner, so that the first temperature control rods 221 can better regulate the temperature in the desulfurization reaction channel 212. In this embodiment, the heating chamber 210a includes a plurality of first heating chambers 213, and the plurality of first heating chambers 213 are disposed at intervals along the length direction of the housing, so that heat generated by the plurality of first temperature control rods 221 better acts on the corrugated assembly.

As shown in fig. 1 to 2, in one embodiment, the corrugated plate 211 at the lowest side and the inner bottom wall of the accommodating cavity 110 enclose a plurality of second heating cavities 214, the number of the second temperature control rods 222 is plural, and the plurality of second temperature control rods 222 are disposed in the plurality of second heating cavities 214 in a one-to-one correspondence, so that the second temperature control rods 222 can better regulate the temperature in the desulfurization reaction channel 212. In the present embodiment, the heating chamber 210a further includes a plurality of second heating chambers 214, and the plurality of second heating chambers 214 are disposed at intervals along the length direction of the housing, so that heat generated by the plurality of second temperature control rods 222 better acts on the corrugated assembly.

As shown in fig. 1 to 2, in one embodiment, the housing 100 further includes a first plugging plate 120 and a second plugging plate 130; the first heating cavity 213 adjacent to the air inlet pipe 500 is communicated with the air inlet pipe 500, the first plugging plate 120 is arranged between the first heating cavity 213 and the air inlet pipe 500, and the first plugging plate 120 is respectively connected with the corrugated plate 211 positioned at the lowest side and the inner bottom wall of the accommodating cavity 110, so that ammonia water in the desulfurization reaction channel 212 is prevented from entering the heating cavity.

As shown in fig. 1 to 2, in one embodiment, the second heating chamber 214 adjacent to the air outlet pipe 700 is communicated with the air outlet pipe 700, the second plugging plate 130 is disposed between the second heating chamber 214 and the air outlet pipe 700, and the second plugging plate 130 is respectively connected to the corrugated plate 211 at the uppermost side and the inner top wall of the accommodating chamber 110, so that ammonia water in the desulfurization reaction channel is prevented from entering the heating chamber.

As shown in fig. 1, in one embodiment, the desulfurization device 10 further includes a base 1000, where the base 1000 is fixedly connected to the housing 100, and the base 1000 is disposed at a lower end of the housing 100, so that the base 1000 can support the housing 100.

The application also provides tail gas treatment equipment, which comprises the desulfurization device in any embodiment.

The present utility model includes, but is not limited to, the following advantages over the prior art:

1) In the desulfurization device 10, since the housing 100 is formed with the air inlet 510, the accommodating cavity 110 and the air outlet 710 that are sequentially communicated, the desulfurization mechanism 200 is disposed in the accommodating cavity 110, and the desulfurization mechanism 200 is used for removing sulfur-containing components in the tail gas, so that the tail gas achieves the purpose of desulfurization;

2) Because a desulfurization reaction channel 212 is formed between every two adjacent corrugated plates 211 and is respectively communicated with the air inlet 510 and the air outlet 710, the distance of the tail gas passing through the accommodating cavity 110 is prolonged, the reaction contact time of the tail gas and ammonia water is prolonged, and the desulfurization reaction effect is improved;

3) The temperature control assembly 220 is used for regulating and controlling the temperature in the desulfurization reaction channel 212, so that the optimal temperature for the reaction between sulfur and ammonia water in the desulfurization reaction channel 212 is reached, further, sulfur components in the tail gas can fully react with the ammonia water, and the desulfurization effect of the tail gas is improved;

4) The air inlet cavity 310 and the air outlet cavity 410 are both communicated with the desulfurization reaction channel 212, so that tail gas can slowly enter the desulfurization reaction channel 212 through the air inlet cavity 310 and slowly discharge the desulfurization reaction channel 212 through the air outlet cavity 410, the reaction contact time of the tail gas and ammonia water is prolonged, and the desulfurization reaction effect is improved;

5) The central pipeline 600 is arranged in the air inlet pipe 500, the diameter of the central pipeline 600 is smaller than that of the air inlet pipe 500, the reaction contact time of tail gas and ammonia water is prolonged, and the desulfurization reaction effect is improved;

6) The slow flow rod assembly 900 is arranged in the air outlet cavity 410, and the slow flow rod assembly 900 is arranged adjacent to the air outlet 710, a plurality of slow flow gaps 910 are formed in the slow flow rod assembly 900, each slow flow gap 910 is communicated with the air outlet 710, the flow rate of tail gas passing through the air outlet cavity 410 is slowed down, and then the contact time between the tail gas and ammonia water is prolonged.

The foregoing examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. The utility model provides a desulfurization device (10), its characterized in that includes casing (100), desulfurization mechanism (200), intake pipe (500) and outlet duct (700), the one end of intake pipe (500) is formed with air inlet (510), the one end of outlet duct (700) is formed with gas outlet (710), casing (100) is formed with holds chamber (110), air inlet (510), hold chamber (110) and gas outlet (710) communicate in proper order, desulfurization mechanism (200) set up in hold chamber (110);

the desulfurization mechanism (200) comprises a corrugated component (210) and a temperature control component (220), the corrugated component (210) is arranged in the accommodating cavity (110), a desulfurization reaction channel (212) is formed in the corrugated component (210), the desulfurization reaction channel (212) is respectively communicated with the air inlet pipe (500) and the air outlet pipe (700), a heating cavity (210 a) is formed between the corrugated component (210) and the inner wall of the accommodating cavity (110), the temperature control component (220) is arranged in the heating cavity (210 a), and the temperature control component (220) is used for controlling the temperature in the desulfurization reaction channel (212).

2. The desulfurization device (10) according to claim 1, wherein the desulfurization device (10) further comprises an air inlet hopper (300) and an air outlet hopper (400), the air inlet hopper (300) being disposed between the air inlet pipe (500) and the housing (100), the air outlet hopper (400) being disposed between the air outlet pipe (700) and the housing (100); the intake hopper (300) is formed with an intake chamber (310) communicating with an intake pipe (500), the cross-sectional area of the intake chamber (310) gradually increasing in the direction from the intake pipe (500) to the housing (100); the air outlet hopper (400) is provided with an air outlet cavity (410) communicated with the air outlet pipe (700), the cross section area of the air outlet cavity (410) gradually decreases gradually in the direction from the shell (100) to the air outlet pipe (700), and the air inlet cavity (310) and the air outlet cavity (410) are respectively communicated with the desulfurization reaction channel (212); the air inlet (510) is formed at one end of the air inlet pipe (500) away from the air inlet hopper (300).

3. The desulfurization device (10) according to claim 2, characterized in that the desulfurization device (10) further comprises a central pipe (600), the diameter of the central pipe (600) is smaller than the diameter of the intake pipe (500), the central pipe (600) is disposed in the intake pipe (500), one end of the central pipe (600) is fixed in the intake port (510), the other end of the central pipe (600) extends in the intake chamber (310),

the height of the air inlet (510) and the air outlet (710) is higher than the height of the shell (100).

4. The desulfurization unit (10) of claim 2, wherein the desulfurization unit (10) further comprises a slow flow rod assembly (900), the slow flow rod assembly (900) being disposed in the air outlet hopper (400), the slow flow rod assembly (900) being formed with a plurality of slow flow gaps, each slow flow gap being in communication with the air outlet pipe (700).

5. The desulfurization apparatus (10) according to claim 1, wherein said corrugated member (210) comprises a plurality of corrugated plates (211), a plurality of said corrugated plates (211) being disposed in said housing chamber (110) in a vertically equidistant arrangement, one said desulfurization reaction channel (212) being formed between each adjacent two of said corrugated plates (211), said corrugated plate (211) located at the uppermost side being connected to an inner top wall of said housing chamber (110), said corrugated plate (211) located at the lowermost side being connected to an inner bottom wall of said housing chamber (110); the temperature control assembly (220) comprises a first temperature control rod (221) and a second temperature control rod (222), the first temperature control rod (221) is arranged between the corrugated plate (211) at the uppermost side and the inner wall of the accommodating cavity (110), and the second temperature control rod (222) is arranged between the corrugated plate (211) at the lowermost side and the inner wall of the accommodating cavity (110).

6. The desulfurization device (10) according to claim 5, wherein a plurality of first heating chambers (213) are defined by the uppermost corrugated plate (211) and the inner top wall of the accommodating chamber (110), the number of the first temperature control rods (221) is plural, and the plurality of first temperature control rods (221) are disposed in the plurality of first heating chambers (213) in a one-to-one correspondence.

7. The desulfurization device (10) according to claim 6, wherein a plurality of second heating chambers (214) are defined by the corrugated plate (211) located at the lowest side and the inner bottom wall of the accommodating chamber (110), the number of the second temperature control rods (222) is plural, and the plurality of second temperature control rods (222) are disposed in the plurality of second heating chambers (214) in a one-to-one correspondence.

8. The desulfurization device (10) of claim 7, wherein the housing (100) further comprises a first block plate (120) and a second block plate (130); the first heating cavity (213) adjacent to the air inlet pipe (500) is communicated with the air inlet pipe (500), the first plugging plate (120) is arranged between the first heating cavity (213) and the air inlet pipe (500), and the first plugging plate (120) is respectively connected with the corrugated plate (211) at the lowest side and the inner bottom wall of the accommodating cavity (110);

the second heating cavity (214) adjacent to the air outlet pipe (700) is communicated with the air outlet pipe (700), the second plugging plate (130) is arranged between the second heating cavity (214) and the air outlet pipe (700), and the second plugging plate (130) is respectively connected to the corrugated plate (211) at the uppermost side and the inner top wall of the accommodating cavity (110).

9. The desulfurization device (10) according to claim 1, wherein the desulfurization device (10) further comprises a base (1000), the base (1000) is fixedly connected with the housing (100), and the base (1000) is disposed at the lower end of the housing (100).

10. An exhaust gas treatment apparatus, characterized by comprising a desulfurization device (10) according to any one of claims 1 to 9.