Flue gas treatment equipment

Abstract

The utility model discloses flue gas treatment equipment. The flue gas treatment equipment comprises a failure adsorption unit transfer chamber, an adsorption chamber and an effective adsorption unit storage chamber from bottom to top, a first valve is arranged between the failure adsorption unit transfer chamber and the adsorption chamber, a second valve is arranged between the adsorption chamber and the effective adsorption unit storage chamber, and the adsorption chamber is provided with a flue gas inlet and a flue gas outlet. A first adsorption area and a second adsorption area are sequentially defined in the adsorption chamber from bottom to top, the flue gas inlet is communicated with the first adsorption area, the flue gas outlet is communicated with the second adsorption area, and the first adsorption area and the second adsorption area are each provided with a supporting piece which is telescopically connected to the inner side of the adsorption chamber in the horizontal direction. An adsorption unit arranged above the supporting piece is arranged in the first adsorption area and / or the second adsorption area, and an adsorbent for adsorbing gaseous pollutants is arranged in the adsorption unit. According to the flue gas treatment equipment disclosed by the utility model, the adsorption unit can be replaced in a working state, and a large amount of waste water cannot be generated.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas treatment, in particular to a flue gas treatment device. Background Art

[0002] Incineration is still considered an effective waste disposal method because it can achieve reduction, harmlessness and energy resource utilization while disposing of waste. With the increasing requirements for harmless waste disposal, incineration will be used more in the future. Since the waste contains a large amount of plastic waste, which contains a large amount of halogen elements such as fluorine, chlorine, and bromine, the flue gas pollutants produced by incineration also contain a large amount of halogens and halides. In addition to causing fluorosis, excessive fluorine can also cause back pain, leg pain, joint stiffness, hunchback, and even paraplegia. The accumulation of chloride ions in the soil will make the soil less permeable, increase the content of heavy metals in water, hinder the diffusion and distribution of oxygen and nutrients, and ultimately affect the normal survival of aquatic organisms. Bromine can cause coughing, dizziness, nausea, and inhibit the central nervous system. Bromate ions can cause nephrotoxicity. Bromate ions have been classified as a potential carcinogen of Class 2B by the International Agency for Research on Cancer.

[0003] As environmental protection requirements become increasingly stringent, the flue gas produced by incineration contains halogen elements and must be treated before being discharged. At present, the treatment of halogen and other acidic gases in flue gas mainly uses alkaline solution wet spraying. This method has high removal efficiency, but it will produce a large amount of wastewater, and the equipment investment cost and operating cost are high. The dry purification process is to spray powdered slaked lime or limestone into the flue. The process flow is simple and does not produce waste liquid. However, when using the dry adsorption process, the equipment needs to replace the adsorbent when the furnace is shut down. Utility Model Content

[0004] The utility model aims to solve one of the technical problems in the related art at least to a certain extent. To this end, one purpose of the utility model is to provide a flue gas treatment device, which can complete the replacement of the adsorption unit in a working state and does not generate a large amount of wastewater.

[0005] In one aspect of the utility model, the utility model proposes a flue gas treatment device. According to an embodiment of the utility model, the flue gas contains gaseous pollutants, and the flue gas treatment device includes a failed adsorption unit transfer chamber, an adsorption chamber and an effective adsorption unit storage chamber from bottom to top, a first valve is provided between the failed adsorption unit transfer chamber and the adsorption chamber, a second valve is provided between the adsorption chamber and the effective adsorption unit storage chamber, the adsorption chamber has a flue gas inlet and a flue gas outlet, a demister is provided at the flue gas inlet, a first adsorption zone and a second adsorption zone are defined in sequence from bottom to top in the adsorption chamber, the flue gas inlet is connected to the first adsorption zone, the flue gas outlet is connected to the second adsorption zone, the first adsorption zone and the second adsorption zone both have a support member that is telescopically connected to the inner side of the adsorption chamber in a horizontal direction, an adsorption unit placed above the support member is provided in the first adsorption zone and / or the second adsorption zone, and an adsorbent for adsorbing the gaseous pollutants is provided in the adsorption unit.

[0006] According to the flue gas treatment equipment of the above-mentioned embodiment of the utility model, a failed adsorption unit transfer chamber, an adsorption chamber and an effective adsorption unit storage chamber are provided, and a first valve is provided between the failed adsorption unit transfer chamber and the adsorption chamber, and a second valve is provided between the adsorption chamber and the effective adsorption unit storage chamber, a first adsorption zone and a second adsorption zone are defined in the adsorption chamber, a support member telescopically connected to the inner side of the adsorption chamber is provided in the first adsorption zone and the second adsorption zone, an adsorption unit is provided above the support member of the first adsorption zone and / or the second adsorption zone, when the adsorption unit does not need to be replaced, the first valve and the second valve are both in a closed state, and the flue gas containing gaseous pollutants is supplied to the adsorption chamber through a demister provided at the flue gas inlet, which can reduce the amount of mist entrained in the flue gas, and an adsorbent is provided in the adsorption unit of the first adsorption zone and / or the second adsorption zone, which can adsorb gaseous pollutants to obtain purified flue gas; when the adsorption unit needs to be replaced, if only the first adsorption zone is provided with an adsorption unit, the effective adsorption unit can be placed in the effective adsorption unit storage chamber, the support member of the second adsorption zone is in an extended state, and the second valve is opened to make the effective adsorption unit descend to the support member of the second adsorption zone. The adsorption unit is placed above the adsorption unit, and then the second valve is closed, so that the effective adsorption unit can be placed in the adsorption chamber in the working state, and then the first valve is opened, and the support member of the first adsorption zone is retracted, so that the adsorption unit in the first adsorption zone is lowered to the failed adsorption unit transfer chamber, so that the adsorption unit to be replaced can be transferred out of the adsorption chamber in the working state, thereby completing the replacement of the adsorption unit in the working state; if only the second adsorption zone is provided with an adsorption unit, the support member of the first adsorption zone can be extended, and the support member of the second adsorption zone can be retracted, so that the adsorption unit in the second adsorption zone is lowered to the first adsorption zone, so that the adsorption unit can be replaced in the working state according to the steps of replacing the adsorption unit when only the first adsorption zone is provided with an adsorption unit; if both the first adsorption zone and the second adsorption zone are provided with adsorption units, the first valve can be opened, and the support member of the first adsorption zone can be retracted, so that the adsorption unit in the first adsorption zone is lowered to the failed adsorption unit transfer chamber, and then the first valve can be closed, so that the adsorption unit can be replaced in the working state according to the steps of replacing the adsorption unit when only the second adsorption zone is provided with an adsorption unit. Therefore, the flue gas treatment equipment of the utility model can complete the replacement of the adsorption unit in the working state without generating a large amount of waste water.

[0007] In addition, the flue gas treatment equipment according to the above embodiment of the utility model may also have the following additional technical features:

[0008] In some embodiments of the present invention, a third adsorption zone is provided between the first adsorption zone and the second adsorption zone, and the third adsorption zone has a support member which is telescopically connected to the inner side of the adsorption chamber along a horizontal direction.

[0009] In some embodiments of the utility model, the third adsorption area is provided with an adsorption unit placed above the support member, thereby further facilitating the removal of gaseous pollutants in the flue gas and preventing the gaseous pollutants from causing harm to the environment and human body.

[0010] In some embodiments of the present invention, the failed adsorption unit transfer chamber has an adsorption unit outlet, and a third valve is provided at the adsorption unit outlet, so that the adsorption unit to be replaced can be transferred out of the failed adsorption unit transfer chamber in the working state.

[0011] In some embodiments of the present invention, the effective adsorption unit storage chamber has an adsorption unit inlet.

[0012] In some embodiments of the utility model, two opposite sides of the inner wall of the flue gas treatment device are provided with slide rails extending in the vertical direction, and the side of the adsorption unit is provided with pulleys respectively slidably connected to the slide rails on both sides of the inner wall of the flue gas treatment device. Thus, the adsorption unit can be smoothly lowered along the slide rails.

[0013] In some embodiments of the present invention, the first valve and the second valve respectively penetrate the slide rail.

[0014] In some embodiments of the present invention, the first valve and the second valve independently include electric gate valves or manual gate valves.

[0015] In some embodiments of the utility model, the first adsorption area and the second adsorption area each have two support members which are respectively connected to opposite sides of the inner wall of the flue gas treatment device in a telescopic manner in the horizontal direction, thereby improving the stability of the operation of the flue gas treatment device.

[0016] In some embodiments of the present invention, the support member includes an electric telescopic pin or a manual telescopic pin.

[0017] In some embodiments of the utility model, the adsorption unit includes a plurality of adsorption components from bottom to top, and the adsorbent is disposed in each of the plurality of adsorption components, thereby facilitating the improvement of flue gas treatment efficiency.

[0018] In some embodiments of the utility model, a plurality of the adsorption components are arranged at intervals, thereby facilitating improving the utilization rate of the adsorbent.

[0019] In some embodiments of the present invention, the distance between two adjacent adsorption components is 50 mm to 100 mm.

[0020] In some embodiments of the utility model, the adsorption component includes a top wall and a bottom wall that are relatively arranged, an annular side wall is provided between the top wall and the bottom wall, the upper end surface of the annular side wall is connected to the top wall, and the lower end surface of the annular side wall is connected to the bottom wall, the top wall and the bottom wall are both provided with mesh holes, and a accommodating cavity is formed between the top wall, the bottom wall and the annular side wall, and the adsorbent is arranged in the accommodating cavity.

[0021] In some embodiments of the present invention, the mesh has an aperture of 1.5 mm to 2 mm.

[0022] In some embodiments of the utility model, a honeycomb grid is provided in the accommodating cavity, and the honeycomb grid divides the accommodating cavity into a plurality of sub-cavities distributed in the horizontal direction, and the adsorbent is provided in the sub-cavity, thereby facilitating improving the flue gas treatment efficiency.

[0023] In some embodiments of the utility model, a gas detector is provided at the flue gas outlet, and the gas detector is used to detect the concentration of gaseous pollutants in the flue gas.

[0024] In some embodiments of the utility model, the flue gas treatment device further includes a DCS control unit, which is respectively connected to the support, the first valve, the second valve and the gas detector, and controls the extension and contraction of the support and the opening and closing of the first valve and the second valve based on the concentration of gaseous pollutants in the flue gas detected by the gas detector. Thus, the adsorption unit can be replaced in the working state.

[0025] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0027] Figure 1 is a schematic diagram of a flue gas treatment device according to an embodiment of the utility model;

[0028] Figure 2 is a schematic diagram of a flue gas treatment device according to another embodiment of the utility model;

[0029] Figure 3 is a schematic diagram of a flue gas treatment device according to another embodiment of the utility model;

[0030] Figure 4 is a schematic diagram of an adsorption unit according to an embodiment of the utility model;

[0031] Figure 5 is a schematic diagram of a flue gas treatment device according to another embodiment of the utility model;

[0032] Figure 6 is a schematic diagram of a flue gas treatment device according to another embodiment of the utility model;

[0033] Figure 7 It is a schematic diagram of a flue gas treatment device according to another embodiment of the utility model.

[0034] Reference numerals:

[0035] 100-failed adsorption unit transfer chamber; 101-adsorption unit outlet; 200-adsorption chamber; 201-smoke inlet; 202-smoke outlet; 203-first adsorption area; 204-second adsorption area; 205-support; 206-adsorption unit; 2060-adsorption assembly; 2061-top wall; 2062-annular side wall; 207-third adsorption area; 208-gas detector; 209-demister; 300-effective adsorption unit storage chamber; 400-first valve; 500-second valve. DETAILED DESCRIPTION

[0036] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0039] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0041] In one aspect of the present invention, the present invention provides a flue gas treatment device. According to an embodiment of the present invention, the flue gas contains gaseous pollutants, referring to Figure 1 The flue gas treatment equipment includes, from bottom to top, a failed adsorption unit transfer chamber 100, an adsorption chamber 200 and a valid adsorption unit storage chamber 300.

[0042] According to the embodiment of the present utility model, referring to Figure 1 , a first valve 400 is provided between the failed adsorption unit transfer chamber 100 and the adsorption chamber 200. Specifically, when the adsorption unit does not need to be replaced, the first valve 400 is in a closed state, which can prevent the flue gas in the adsorption chamber 200 from entering the failed adsorption unit transfer chamber 100; when the adsorption unit needs to be replaced, the first valve 400 can be opened to make the adsorption unit in the adsorption chamber 200 descend to the failed adsorption unit transfer chamber 100, and then the first valve 400 can be closed, so that the adsorption unit to be replaced can be transferred out of the adsorption chamber 200 in the working state.

[0043] According to a specific embodiment of the present invention, referring to Figure 1 The failed adsorption unit transfer chamber 100 has an adsorption unit outlet 101, and a third valve is provided at the adsorption unit outlet 101. Specifically, after the adsorption unit is lowered from the adsorption chamber 200 into the failed adsorption unit transfer chamber 100 and the first valve 400 is closed, the third valve is opened, and the adsorption unit can be taken out of the failed adsorption unit transfer chamber 100 through the adsorption unit outlet 101. At the same time, since the first valve 400 is in a closed state, the flue gas in the adsorption chamber 200 can be prevented from entering the failed adsorption unit transfer chamber 100, thereby, the adsorption unit to be replaced can be transferred out of the failed adsorption unit transfer chamber 100 in a working state.

[0044] It should be noted that when the first valve 400 and the third valve are both closed, a closed cavity can be formed in the failed adsorption unit transfer chamber 100 .

[0045] According to the embodiment of the present utility model, referring to Figure 1-3 A second valve 500 is provided between the adsorption chamber 200 and the effective adsorption unit storage chamber 300. The adsorption chamber 200 has a flue gas inlet 201 and a flue gas outlet 202. A demister 209 is provided at the flue gas inlet 201. A first adsorption zone 203 and a second adsorption zone 204 are defined in sequence from bottom to top in the adsorption chamber 200. The flue gas inlet 201 is connected to the first adsorption zone 203, and the flue gas outlet 202 is connected to the second adsorption zone 204. The first adsorption zone 203 and the second adsorption zone 204 both have a support 205 which is telescopically connected to the inner side of the adsorption chamber 200 in a horizontal direction. An adsorption unit 206 placed above the support 205 is provided in the first adsorption zone 203 and / or the second adsorption zone 204, and an adsorbent for adsorbing gaseous pollutants is provided in the adsorption unit 206.

[0046] Specifically, when there is no need to replace the adsorption unit 206, the second valve 500 is in a closed state, and the flue gas containing gaseous pollutants is supplied to the adsorption chamber 200 through the demister 209 arranged at the flue gas inlet 201, which can reduce the amount of mist entrained in the flue gas. The adsorption unit 206 of the first adsorption zone 203 and / or the second adsorption zone 204 is provided with an adsorbent, which can adsorb the gaseous pollutants to obtain purified flue gas. When the adsorption unit 206 needs to be replaced, if only the first adsorption zone 203 is provided with the adsorption unit 206, the effective adsorption unit 206 can be placed in the effective adsorption unit storage chamber 300, thereby, a small amount of gaseous pollutants entering the effective adsorption unit storage chamber 300 from the adsorption chamber 200 when the second valve 500 is subsequently opened can be adsorbed, and then the support 205 of the second adsorption zone 204 is in an extended state, and the second valve 500 is opened, so that the effective adsorption unit 206 is lowered to above the support 205 of the second adsorption zone 204 and then the second valve 500 is closed, so that the effective adsorption unit 206 can be placed in the adsorption chamber 200 in the working state; then the first valve 400 is opened, and the support 205 of the first adsorption zone 203 is retracted, so that the adsorption unit 206 in the first adsorption zone 203 is lowered to the failed adsorption unit transfer chamber 100, so that the adsorption unit 206 that needs to be replaced can be transferred out of the adsorption chamber 200 in the working state, thereby, the replacement can be completed in the working state. Replacement of the adsorption unit 206; if only the second adsorption zone 204 is provided with the adsorption unit 206, the support member 205 of the first adsorption zone 203 can be extended, and the support member 205 of the second adsorption zone 204 can be retracted to make the adsorption unit 206 of the second adsorption zone 204 descend to the first adsorption zone 203, so that the replacement of the adsorption unit 206 can be completed in the working state according to the steps of replacing the adsorption unit 206 when only the first adsorption zone 203 is provided with the adsorption unit 206; if both the first adsorption zone 203 and the second adsorption zone 204 are provided with the adsorption unit 206, the first valve 400 can be opened, and the support member 205 of the first adsorption zone 203 can be retracted to make the adsorption unit 206 in the first adsorption zone 203 descend to the failed adsorption unit transfer chamber 100, and then the first valve 400 can be closed, so that the replacement of the adsorption unit 206 can be completed in the working state according to the steps of replacing the adsorption unit 206 when only the second adsorption zone 204 is provided with the adsorption unit 206.

[0047] It should be noted that the specific type of the demister 209 is not particularly limited, and those skilled in the art may select it according to actual needs. For example, the demister 209 may include a baffle demister and / or a wire mesh demister.

[0048] According to another specific embodiment of the utility model, the first adsorption area 203 and the second adsorption area 204 each have two support members 205 which are respectively connected to the opposite sides of the inner wall of the flue gas treatment device in a horizontal direction in a telescopic manner. Thus, the adsorption units 206 of the first adsorption area 203 and / or the second adsorption area 204 can be supported by the support members 205 connected to the opposite sides of the inner wall of the flue gas treatment device, thereby improving the uniformity of the force applied to the adsorption units 206 and thus improving the stability of the operation of the flue gas treatment device.

[0049] According to another specific embodiment of the utility model, two opposite sides of the inner wall of the flue gas treatment device may be provided with slide rails extending in the vertical direction, and the side of the adsorption unit 206 may be provided with pulleys respectively slidably connected to the slide rails on both sides of the inner wall of the flue gas treatment device. Thus, the adsorption unit 206 can be smoothly lowered along the slide rails and accurately fall on the support member 205 or fall into the failed adsorption unit transfer chamber 100.

[0050] According to another specific embodiment of the utility model, the first valve 400 and the second valve 500 can respectively pass through the above-mentioned slide rail. Specifically, when the first valve 400 is in an open state, the valve plate of the first valve 400 is located outside the side walls of the failed adsorption unit transfer chamber 100 and the adsorption chamber 200, thereby, the adsorption unit 206 can be smoothly dropped from the adsorption chamber 200 to the failed adsorption unit transfer chamber 100 along the slide rail; when the second valve 500 is in an open state, the valve plate of the second valve 500 is located outside the side walls of the adsorption chamber 200 and the effective adsorption unit storage chamber 300, thereby, the adsorption unit 206 can be smoothly dropped from the effective adsorption unit storage chamber 300 to the adsorption chamber 200 along the slide rail.

[0051] It should be noted that the specific types of the first valve 400, the second valve 500 and the support member 205 are not particularly limited, and those skilled in the art can select them according to actual needs. For example, the first valve 400 and the second valve 500 can each independently include an electric gate valve or a manual gate valve, and the support member 205 can include an electric telescopic pin or a manual telescopic pin.

[0052] According to another specific embodiment of the present utility model, referring to Figure 4 The adsorption unit 206 includes a plurality of adsorption components 2060 from bottom to top, and adsorbents are arranged in the plurality of adsorption components 2060. Thus, it is beneficial to improve the efficiency of replacing the adsorbent, thereby improving the flue gas treatment efficiency.

[0053] According to another specific embodiment of the present utility model, referring to Figure 4The adsorption assembly 2060 may include a top wall 2061 and a bottom wall that are arranged opposite to each other, an annular side wall 2062 is arranged between the top wall 2061 and the bottom wall, the upper end surface of the annular side wall 2062 is connected to the top wall 2061, and the lower end surface of the annular side wall 2062 is connected to the bottom wall, mesh holes are arranged on the top wall 2061 and the bottom wall, and a receiving cavity is formed between the top wall 2061, the bottom wall and the annular side wall 2062, and an adsorbent is arranged in the receiving cavity. It should be noted that the specific type of the adsorbent is not particularly limited, and those skilled in the art can select the adsorbent according to the type of pollutants in the flue gas. For example, for gaseous pollutants including halogens and / or halides, the adsorbent used may include at least one of a deacidifying agent, a halogen absorbing agent and a dehydrating agent. Specifically, the deacidifying agent may include at least one of sodium hydroxide, potassium hydroxide, calcium hydroxide, potassium carbonate, sodium carbonate, potassium bicarbonate and sodium bicarbonate, the halogen absorbing agent may include at least one of hydrotalcite, potassium iodide, sodium iodide and sodium thiosulfate, and the water removing agent may include alumina and / or molecular sieves.

[0054] According to another specific embodiment of the utility model, the size of the mesh holes on the top wall 2061 and the bottom wall is not particularly limited, and those skilled in the art can select according to the particle size of the adsorbent, as long as the adsorbent can be prevented from passing through the top wall 2061 and the bottom wall. For example, the mesh hole size can be 1.5 mm to 2 mm. Furthermore, the top wall 2061 and the bottom wall can be made of stainless steel mesh.

[0055] According to another specific embodiment of the utility model, a honeycomb grid may be provided in the accommodation cavity, and the honeycomb grid divides the accommodation cavity into a plurality of sub-cavities distributed in the horizontal direction, and an adsorbent is provided in the sub-cavity. This is conducive to improving the utilization rate of the adsorbent, thereby facilitating improving the flue gas treatment efficiency. Further, the honeycomb grid may include a plurality of hexagonal meshes, and the side length of each hexagonal mesh may be 10 mm-20 mm.

[0056] According to another specific embodiment of the present utility model, referring to Figure 4 , multiple adsorption components 2060 can be arranged at intervals. This is beneficial to avoid the adsorbent from being crushed due to mutual squeezing, thereby further improving the utilization rate of the adsorbent. Further, the distance d between two adjacent adsorption components can be 50mm to 100mm.

[0057] According to another specific embodiment of the present utility model, referring to Figure 5-7, a third adsorption zone 207 may be provided between the first adsorption zone 203 and the second adsorption zone 204, and the third adsorption zone 207 has a support 205 that is retractably connected to the inner side of the adsorption chamber 200 in the horizontal direction. Specifically, an adsorption unit 206 may be placed on the support 205 of the third adsorption zone 207, which is conducive to reducing the frequency of replacing the adsorption unit 206 and improving the flue gas treatment efficiency, thereby further facilitating the removal of gaseous pollutants in the flue gas and preventing the gaseous pollutants from causing harm to the environment and human body. Furthermore, the third adsorption zone 207 has two supports 205 that are retractably connected to opposite sides of the inner wall of the flue gas treatment device in the horizontal direction.

[0058] Specifically, when the adsorption unit needs to be replaced, if only the first adsorption zone 203 and the third adsorption zone 207 are provided with the adsorption unit 206, the effective adsorption unit 206 can be placed in the effective adsorption unit storage chamber 300, thereby, a small amount of gaseous pollutants entering the effective adsorption unit storage chamber 300 from the adsorption chamber 200 when the second valve 500 is subsequently opened can be adsorbed, and then the support member 205 of the second adsorption zone 204 is in an extended state, and the second valve 500 is opened, so that the effective adsorption unit 206 is lowered to above the support member 205 of the second adsorption zone 204, and then the second valve is closed. The first adsorption unit 206 is placed in the adsorption chamber 200 under working conditions; the first valve 400 is opened, and the support member 205 of the first adsorption zone 203 is retracted, so that the adsorption unit 206 in the first adsorption zone 203 is lowered to the failed adsorption unit transfer chamber 100, so that the adsorption unit 206 to be replaced can be transferred out of the adsorption chamber 200 under working conditions, thereby completing the replacement of the adsorption unit 206 under working conditions; if only the second adsorption zone 204 and the third adsorption zone 207 are provided with adsorption units 206, the first adsorption zone 203 can be made to The support member 205 of the first adsorption zone 203 is in an extended state, and the support member 205 of the third adsorption zone 207 is retracted, so that the adsorption unit 206 of the third adsorption zone 207 is lowered to the first adsorption zone 203, and then the support member 205 of the third adsorption zone 207 is extended, and the support member 205 of the second adsorption zone 204 is retracted, so that the adsorption unit 206 of the second adsorption zone 204 is lowered to the third adsorption zone 207, so that the adsorption unit 206 can be replaced according to the steps of replacing the adsorption unit 206 when only the first adsorption zone 203 and the third adsorption zone 207 are provided with the adsorption unit 206, and the adsorption unit 206 is completed in the working state. Replacement of the adsorption unit 206; if the first adsorption zone 203, the second adsorption zone 204 and the third adsorption zone 207 are all provided with the adsorption unit 206, the first valve 400 can be opened, and the support member 205 of the first adsorption zone 203 can be retracted to make the adsorption unit 206 in the first adsorption zone 203 descend into the failed adsorption unit transfer chamber 100, and then the first valve 400 can be closed, so that the adsorption unit 206 can be replaced in the working state according to the steps of replacing the adsorption unit 206 when only the second adsorption zone 204 and the third adsorption zone 207 are provided with the adsorption unit 206.

[0059] According to another specific embodiment of the present invention, the effective adsorption unit storage chamber 300 may have an adsorption unit inlet. Specifically, the adsorption unit 206 may be placed into the effective adsorption unit storage chamber 300 through the adsorption unit inlet.

[0060] According to the embodiment of the present utility model, referring to Figure 1-3, a gas detector 208 may be provided at the flue gas outlet 202, and the gas detector 208 is used to detect the concentration of gaseous pollutants in the flue gas. Specifically, when the gas detector 208 detects that the concentration of gaseous pollutants in the flue gas at the flue gas outlet 202 reaches 80%-90% of the emission standard, the adsorption unit 206 in the adsorption chamber 200 may be replaced. It should be noted that the specific type of the gas detector 208 is not particularly limited, and those skilled in the art may select the specific type of the gas detector 208 according to the specific type of the gaseous pollutants, as long as the concentration of the gaseous pollutants can be detected.

[0061] According to an embodiment of the utility model, the flue gas treatment equipment may further include a DCS control unit, which is respectively connected to the support 205, the first valve 400, the second valve 500 and the gas detector 208, and controls the extension and retraction of the support 205 and the opening and closing of the first valve 400 and the second valve 500 based on the concentration of gaseous pollutants in the flue gas detected by the gas detector 208. Thus, an effective adsorption unit 206 can be placed in the adsorption chamber 200 in a working state, and the adsorption unit 206 that needs to be replaced can be transferred out of the adsorption chamber 200, thereby completing the replacement of the adsorption unit in a working state.

[0062] Therefore, the flue gas treatment equipment of the utility model can complete the replacement of the adsorption unit in the working state without generating a large amount of waste water.

[0063] For ease of understanding, the method for treating flue gas using the above-mentioned flue gas treatment equipment is described below. According to an embodiment of the utility model, the method for treating flue gas includes: supplying flue gas containing gaseous pollutants to an adsorption chamber 200, and adsorbing the gaseous pollutants to obtain purified flue gas. The method adopts the flue gas treatment equipment of the above-mentioned embodiment, by supplying flue gas containing gaseous pollutants to the adsorption chamber 200, and an adsorbent is provided in the adsorption unit 206 of the first adsorption zone 203 and / or the second adsorption zone 204, so that the gaseous pollutants can be adsorbed, thereby obtaining purified flue gas, and at the same time, the adsorption unit 206 can be replaced in a working state, and a large amount of wastewater will not be generated.

[0064] According to an embodiment of the utility model, both the first adsorption zone 203 and the second adsorption zone 204 are provided with an adsorption unit 206 placed above the support 205. The above-mentioned method for treating flue gas also includes: opening the first valve 400, and retracting the support 205 of the first adsorption zone 203, so that the adsorption unit in the first adsorption zone 203 is lowered to the failed adsorption unit transfer chamber 100; closing the first valve 400, extending the support of the first adsorption zone 203, and retracting the support 205 of the second adsorption zone 204, so that the adsorption unit 206 in the second adsorption zone 204 is lowered to the first adsorption zone 203; placing the effective adsorption unit 206 into the effective adsorption unit storage chamber 300; extending the support 205 of the second adsorption zone 204, and opening the second valve 500, so that the adsorption unit 206 in the effective adsorption unit storage chamber 300 is lowered to the second adsorption zone 204.

[0065] It should be noted that the specific steps for replacing the adsorption unit 206 when only the first adsorption zone 203 is provided with the adsorption unit 206 or only the second adsorption zone 204 is provided with the adsorption unit 206 have been described in detail above and will not be repeated here.

[0066] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0067] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A flue gas treatment device, characterized in that: The flue gas contains gaseous pollutants, and the flue gas treatment equipment includes, from bottom to top, a failed adsorption unit transfer chamber, an adsorption chamber and an effective adsorption unit storage chamber, a first valve is provided between the failed adsorption unit transfer chamber and the adsorption chamber, a second valve is provided between the adsorption chamber and the effective adsorption unit storage chamber, the adsorption chamber has a flue gas inlet and a flue gas outlet, a demister is provided at the flue gas inlet, a first adsorption zone and a second adsorption zone are defined in sequence from bottom to top in the adsorption chamber, the flue gas inlet is connected to the first adsorption zone, the flue gas outlet is connected to the second adsorption zone, the first adsorption zone and the second adsorption zone both have a support member telescopically connected to the inner side of the adsorption chamber in a horizontal direction, an adsorption unit placed above the support member is provided in the first adsorption zone and / or the second adsorption zone, and an adsorbent for adsorbing the gaseous pollutants is provided in the adsorption unit.

2. The flue gas treatment equipment according to claim 1, characterized in that: A third adsorption zone is disposed between the first adsorption zone and the second adsorption zone. The third adsorption zone has a support member that is telescopically connected to the inner side of the adsorption chamber along a horizontal direction.

3. The flue gas treatment equipment according to claim 2, characterized in that: The third adsorption area is provided with an adsorption unit placed above the support member; And / or, the failed adsorption unit transfer chamber has an adsorption unit outlet, and a third valve is provided at the adsorption unit outlet; And / or, the effective adsorption unit storage chamber has an adsorption unit inlet.

4. The flue gas treatment equipment according to claim 1, characterized in that: Slide rails extending in the vertical direction are provided on opposite sides of the inner wall of the flue gas treatment device, and pulleys are provided on the sides of the adsorption unit that are slidably connected to the slide rails on both sides of the inner wall of the flue gas treatment device.

5. The flue gas treatment equipment according to claim 4, characterized in that: The first valve and the second valve pass through the slide rail respectively.

6. The flue gas treatment equipment according to claim 1, characterized in that: The first valve and the second valve independently include electric gate valves or manual gate valves; And / or, the first adsorption zone and the second adsorption zone each have two supporting members which are respectively connected to opposite sides of the inner wall of the flue gas treatment device in a telescopic manner in the horizontal direction; And / or, the support member includes an electric telescopic pin or a manual telescopic pin.

7. The flue gas treatment equipment according to claim 1, characterized in that: The adsorption unit comprises a plurality of adsorption components from bottom to top, and the adsorbent is arranged in each of the plurality of adsorption components.

8. The flue gas treatment equipment according to claim 7, characterized in that: A plurality of the adsorption components are arranged at intervals; And / or, the distance between two adjacent adsorption components is 50 mm to 100 mm; And / or, the adsorption component includes a top wall and a bottom wall arranged opposite to each other, an annular side wall is provided between the top wall and the bottom wall, the upper end surface of the annular side wall is connected to the top wall, and the lower end surface of the annular side wall is connected to the bottom wall, the top wall and the bottom wall are both provided with mesh holes, and a accommodating cavity is formed between the top wall, the bottom wall and the annular side wall, and the adsorbent is arranged in the accommodating cavity.

9. The flue gas treatment equipment according to claim 8, characterized in that: The mesh has a pore size of 1.5 mm to 2 mm; And / or, a honeycomb grid is provided in the accommodating cavity, the honeycomb grid divides the accommodating cavity into a plurality of sub-cavities distributed in a horizontal direction, and the adsorbent is provided in the sub-cavity; And / or, a gas detector is provided at the flue gas outlet, and the gas detector is used to detect the concentration of gaseous pollutants in the flue gas.

10. The flue gas treatment equipment according to claim 9, characterized in that: The flue gas treatment equipment also includes a DCS control unit, which is respectively connected to the support member, the first valve, the second valve and the gas detector, and controls the extension and retraction of the support member and the opening and closing of the first valve and the second valve based on the concentration of gaseous pollutants in the flue gas detected by the gas detector.

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