Coal-fired flue gas adsorption equipment

Abstract

The present invention discloses a coal-fired flue gas adsorption device, which relates to the technical field of coal-fired flue gas adsorption. In the present invention, since the two groups of assembly pipes are fixedly connected to the hose, a spiral pipe, a filter element and an air guide cover are provided inside the assembly pipe, both ends of the spiral pipe pass through the assembly pipe and are connected to a hot water tank, the spiral pipe is wrapped around the outer periphery of the filter element, a transition cavity is provided at the gap between the spiral pipe and the filter element, the air guide cover is fixedly installed on one side of the filter element, the filter element is connected to the transition cavity, and the filter element is connected to the air guide cover, so the coal-fired flue gas will remain in the transition cavity after entering the assembly pipe, and cold water will be input into the spiral pipe through the hot water tank. The condensed water formed on the spiral pipe will initially adsorb the flue gas dust, and then the flue gas will enter the filter element through the air inlet and the first adapter ring for filtration, and then be output from the filter element to the air outlet to achieve secondary filtration. In the process, the adsorption of smoke dust and the filtration of smoke are fully reacted, and the gas treatment effect is good.

Description

Technical Field

[0001] The invention relates to the technical field of coal-fired flue gas adsorption, in particular to coal-fired flue gas adsorption equipment. Background Art

[0002] Coal flue gas refers to the gases and solid particulates produced when organic matter, minerals, and moisture in the coal react with oxygen during the combustion process. This flue gas contains not only harmful substances but also some components of the coal itself and is emitted directly into the atmosphere. The composition and emission characteristics of coal flue gas are generally affected by factors such as combustion conditions, coal type, and combustion equipment.

[0003] The composition of coal-fired flue gas is relatively complex, mainly including the following categories:

[0004] Gaseous pollutants:

[0005] Sulfur dioxide (SO2): Sulfur-containing minerals in coal react with oxygen to produce sulfur dioxide, a major air pollutant that can cause acid rain.

[0006] Nitrogen oxides (NOx): During the coal combustion process, nitrogen in the air reacts with oxygen at high temperatures to produce nitrogen oxides, mainly including nitric oxide (NO) and nitrogen dioxide (NO2). They are an important source of air pollution and participate in ozone production.

[0007] Carbon dioxide (CO2): The carbon in coal combines with oxygen during combustion to form carbon dioxide, which is one of the greenhouse gases and has a significant impact on climate change.

[0008] Carbon monoxide (CO): Carbon monoxide produced by incomplete combustion is a toxic gas.

[0009] Volatile organic compounds (VOCs): Some organic compounds are emitted during coal combustion, which may contain benzene, methane, etc.

[0010] Particulate matter:

[0011] PM: Solid particulate matter produced during coal combustion, primarily incompletely burned coal dust, minerals, and carbon particles. PM is a major component of air pollution and poses a significant health hazard.

[0012] Ash: Mineral components contained in coal (such as silicon, aluminum, iron, calcium, etc.) are converted into ash during the combustion process and are also emitted in the form of particulate matter.

[0013] Acid gases:

[0014] Hydrogen chloride (HCl) and hydrogen fluoride (HF): These are gases produced when burning coal containing chlorine and fluoride.

[0015] Hydrogen sulfide (H2S): When the sulfur content in coal is high, a small amount of hydrogen sulfide may also be produced.

[0016] Other harmful gases:

[0017] Including ammonia (NH3), hydrocarbons, hydrogen cyanide, etc., especially under some special conditions or when using low-quality coal, more of these harmful gases will be produced

[0018] Existing technologies for adsorbing coal-fired flue gas usually use multiple chemical materials (such as chemical reagents or activated carbon, etc.) for adsorption, which leads to a long adsorption process and high adsorption costs, and there is room for improvement. Summary of the Invention

[0019] The purpose of the present invention is to provide a coal-fired flue gas adsorption device to solve the problems raised in the above background technology.

[0020] To achieve the above-mentioned object, the present invention provides the following technical solution: a coal-fired flue gas adsorption device, comprising an assembly tube and a hose, two sets of the assembly tubes being fixedly connected to the hose, a spiral tube, a filter element, and an air guide cover being provided inside the assembly tube, both ends of the spiral tube passing through the assembly tube and being connected to a hot water tank, the spiral tube wrapping around the outer circumference of the filter element, a transition cavity being defined in the gap between the spiral tube and the filter element, the air guide cover being fixedly mounted on one side of the filter element, the filter element being connected to the transition cavity, and the filter element being connected to the air guide cover;

[0021] The air guide cover includes a transition track, a first adapter ring and a second adapter ring, the first adapter ring and the second adapter ring are both fixedly connected to the air guide cover, the transition track is communicated with the transition cavity, an air inlet is formed on one side of the transition track, an air duct is formed on one side of the second adapter ring, the air inlet is communicated with the air duct, the transition cavity is communicated with the transition track, the transition track is communicated with the air inlet, and the air duct is communicated with the filter element;

[0022] An air outlet is provided inside the air guide cover, and the filter element is connected to the air outlet;

[0023] After the coal-fired flue gas enters the assembly pipe, it will remain in the transition cavity, and cold water will be input into the spiral pipe through the hot water tank. The condensed water formed on the spiral pipe will initially adsorb the flue gas dust. The flue gas will then enter the filter element through the air inlet and the first adapter ring for filtration, and then be output from the filter element to the air outlet (94) for secondary filtration.

[0024] As a further solution of the present invention: a coal-fired flue gas adsorption device, wherein an air outlet is opened inside the air guide cover, and the filter element is connected to the air outlet.

[0025] As a further solution of the present invention: a coal-fired flue gas adsorption device, the hot water tank is fixedly installed on one side of the assembly pipe, and the hot water tank is fixedly connected to the spiral pipe through a hot water pipe.

[0026] As a further solution of the present invention: a coal-fired flue gas adsorption device, wherein a filter element hoop seat is fixedly connected to a side of the filter element away from the air guide cover, and the filter element hoop seat is expansion-connected to the assembly pipe.

[0027] As a further solution of the present invention: a coal-fired flue gas adsorption device, the bending assembly includes a first hinge, a connecting rod and a second hinge, the second hinge is fixedly connected to the assembly pipe, one end of the connecting rod is rotatably connected to the second hinge, and the other end of the connecting rod is rotatably connected to the first hinge.

[0028] As a further solution of the present invention: a coal-fired flue gas adsorption device, the bending assembly includes a first hinge, a connecting rod and a second hinge, the second hinge is fixedly connected to the assembly pipe, one end of the connecting rod is rotatably connected to the second hinge, and the other end of the connecting rod is rotatably connected to the first hinge.

[0029] As a further solution of the present invention: a coal-fired flue gas adsorption device, the filter element hoop seat includes a seat body and a seat groove, the pipe cover includes a cover body and a cover block, the cover body is adapted to the seat body, and the cover block is adapted to the seat groove.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. Since the two groups of assembly pipes are fixedly connected to the hose, a spiral tube, a filter element and an air guide cover are provided inside the assembly pipe, both ends of the spiral tube pass through the assembly pipe and are connected to a hot water tank, the spiral tube covers the outer periphery of the filter element, a transition chamber is provided at the gap between the spiral tube and the filter element, the air guide cover is fixedly installed on one side of the filter element, the filter element is connected to the transition chamber, and the filter element is connected to the air guide cover, so the coal-fired flue gas will remain in the transition chamber after entering the assembly pipe, and cold water will be input into the spiral tube through the hot water tank. The condensed water formed on the spiral tube will initially adsorb the flue gas dust, and then the flue gas will enter the filter element through the air inlet and the first adapter ring for filtration, and then be output from the filter element to the air outlet to realize secondary filtration. In the process, the adsorption of smoke dust and the filtration of smoke are fully reacted, and the gas treatment effect is good;

[0032] 2. Since the two sets of assembly pipes are hinged by a bending assembly, specifically, the second hinge is fixedly connected to the assembly pipe, one end of the connecting rod is rotatably connected to the second hinge, and the other end of the connecting rod is rotatably connected to the first hinge, the two sets of assembly pipes can be offset according to the position requirements of the pipeline interface;

[0033] 3. Since the pipe cover is adapted to the filter element hoop seat, specifically the cover body is adapted to the seat body, and the cover block is adapted to the seat groove, the pipeline can be well sealed before or after use to prevent the entry of miscellaneous air. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the overall structure of a coal-fired flue gas adsorption device of the present invention;

[0035] Figure 2 This is a cross-sectional view of an assembly pipe in a coal-fired flue gas adsorption device according to the present invention;

[0036] Figure 3 This is a second cross-sectional diagram of an assembly pipe in a coal-fired flue gas adsorption device according to the present invention;

[0037] Figure 4 This is a schematic diagram of the structure of an air guide cover in a coal-fired flue gas adsorption device of the present invention;

[0038] Figure 5 This is the third cross-sectional diagram of an assembly pipe in a coal-fired flue gas adsorption device of the present invention;

[0039] In the figure: 1. Assembly pipe; 2. Hose; 3. Pipe cover; 31. Cover body; 32. Cover block; 4. Spiral tube; 5. Hot water tank; 6. Hot water pipe; 7. Bending assembly; 71. First hinge; 72. Connecting rod; 73. Second hinge; 8. Filter element; 9. Air guide cover; 91. Transition track; 92. First adapter ring; 93. Second adapter ring; 94. Air outlet; 95. Air inlet; 96. Air inlet; 10. Filter element hoop seat; 101. Seat body; 102. Seat groove; 11. Transition cavity. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and should not be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected, detachably connected, or connected in one piece; they can be mechanically connected or electrically connected; they can be directly connected, or indirectly connected through an intermediate medium, or they can be internal connections between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following describes an embodiment of the present invention based on its overall structure.

[0042] In an embodiment of the present invention, a coal-fired flue gas adsorption device includes an assembly tube 1 and a hose 2. Two groups of the assembly tubes 1 are fixedly connected to the hose 2. A spiral tube 4, a filter element 8 and an air guide cover 9 are provided inside the assembly tube 1. Both ends of the spiral tube 4 pass through the assembly tube 1 and are connected to a hot water tank 5. The spiral tube 4 is wrapped around the outer periphery of the filter element 8. A transition cavity 11 is provided in the gap between the spiral tube 4 and the filter element 8. The air guide cover 9 is fixedly installed on one side of the filter element 8. The filter element 8 is connected to the transition cavity 11, and the filter element 8 is connected to the air guide cover 9.

[0043] Since the two groups of assembly pipes 1 are fixedly connected to the hose 2, a spiral tube 4, a filter element 8 and an air guide cover 9 are provided inside the assembly pipe 1. Both ends of the spiral tube 4 pass through the assembly pipe 1 and are connected to the hot water tank 5. The spiral tube 4 is coated on the outer periphery of the filter element 8. A transition chamber 11 is opened at the gap between the spiral tube 4 and the filter element 8. The air guide cover 9 is fixedly installed on one side of the filter element 8. The filter element 8 is communicated with the transition chamber 11. The filter element 8 is communicated with the air guide cover 9. Therefore, the coal-fired flue gas will remain in the transition chamber 11 after entering the assembly pipe 1, and cold water will be input into the spiral tube 4 through the hot water tank 5. The condensed water formed on the spiral tube 4 will initially adsorb the flue gas dust. Subsequently, the flue gas will enter the filter element 8 through the air inlet 95 and the first adapter ring 92 for filtration, and then be output from the filter element 8 to the air outlet 94 to achieve secondary filtration. During the process, the adsorption of smoke dust and the filtration of smoke are fully reacted, and the gas treatment effect is good.

[0044] As a further solution of the present invention: a coal-fired flue gas adsorption device, the air guide cover 9 includes a transition track 91, a first adapter ring 92 and a second adapter ring 93, the first adapter ring 92 and the second adapter ring 93 are both fixedly connected to the air guide cover 9, the transition track 91 is connected to the transition chamber 11, an air inlet 95 is provided on one side of the transition track 91, an air duct 96 is provided on one side of the second adapter ring 93, the air inlet 95 is connected to the air duct 96, the transition chamber 11 is connected to the transition track 91, the transition track 91 is connected to the air inlet 95, and the air duct 96 is connected to the filter element 8.

[0045] As a further solution of the present invention: a coal-fired flue gas adsorption device, the interior of the air guide cover 9 is provided with an air outlet 94 , and the filter element 8 is communicated with the air outlet 94 .

[0046] As a further solution of the present invention: a coal-fired flue gas adsorption device further includes a bending component 7, and the two groups of assembly pipes 1 are hinged through the bending component 7.

[0047] Since the two groups of assembly tubes 1 are hinged through the bending component 7, specifically the second hinge 73 is fixedly connected to the assembly tube 1, one end of the connecting rod 72 is rotatably connected to the second hinge 73, and the other end of the connecting rod 72 is rotatably connected to the first hinge 71, the two groups of assembly tubes 1 can be offset and connected according to the pipeline interface position requirements.

[0048] As a further solution of the present invention: a coal-fired flue gas adsorption device, the hot water tank 5 is fixedly installed on one side of the assembly pipe 1, and the hot water tank 5 is fixedly connected to the spiral tube 4 through the hot water pipe 6.

[0049] As a further solution of the present invention: a coal-fired flue gas adsorption device, the filter element 8 is fixedly connected to a filter element hoop seat 10 on the side away from the air guide cover 9, and the filter element hoop seat 10 is expanded to the assembly pipe 1.

[0050] As a further solution of the present invention: a coal-fired flue gas adsorption device, the bending component 7 includes a first hinge 71, a connecting rod 72 and a second hinge 73, the second hinge 73 is fixedly connected to the assembly pipe 1, one end of the connecting rod 72 is rotatably connected to the second hinge 73, and the other end of the connecting rod 72 is rotatably connected to the first hinge 71.

[0051] As a further solution of the present invention: a coal-fired flue gas adsorption device further includes a pipe cover 3, and the pipe cover 3 is adapted to the filter element hoop seat 10.

[0052] As a further solution of the present invention: a coal-fired flue gas adsorption device, the filter element hoop seat 10 includes a seat body 101 and a seat groove 102, the pipe cover 3 includes a cover body 31 and a cover block 32, the cover body 31 is adapted to the seat body 101, and the cover block 32 is adapted to the seat groove 102.

[0053] Since the pipe cover 3 is adapted to the filter element hoop seat 10, specifically the cover body 31 is adapted to the seat body 101, and the cover block 32 is adapted to the seat groove 102, the pipeline can be well sealed before or after use to prevent foreign air from entering.

[0054] The working principle of the present invention is as follows: since the two groups of assembly pipes 1 are fixedly connected to the hose 2, a spiral tube 4, a filter element 8 and an air guide cover 9 are provided inside the assembly pipe 1, and both ends of the spiral tube 4 pass through the assembly pipe 1 and are connected to the hot water tank 5. The spiral tube 4 covers the outer periphery of the filter element 8, and a transition chamber 11 is opened at the gap between the spiral tube 4 and the filter element 8. The air guide cover 9 is fixedly installed on one side of the filter element 8, and the filter element 8 is communicated with the transition chamber 11. The filter element 8 is communicated with the air guide cover 9, so the coal-fired flue gas will remain in the transition chamber 11 after entering the assembly pipe 1, and cold water is input into the spiral tube 4 through the hot water tank 5. The condensed water formed on the spiral tube 4 will initially adsorb the flue gas dust, and then the flue gas will enter the filter element 8 through the air inlet 95 and the first adapter ring 92 for filtration, and then be output from the filter element 8 to the air outlet 94 to achieve secondary filtration. In the process, the adsorption of smoke dust and the filtration of smoke are fully reacted, and the gas treatment effect is good.

[0055] Since the two groups of assembly tubes 1 are hinged through the bending component 7, specifically the second hinge 73 is fixedly connected to the assembly tube 1, one end of the connecting rod 72 is rotatably connected to the second hinge 73, and the other end of the connecting rod 72 is rotatably connected to the first hinge 71, the two groups of assembly tubes 1 can be offset and connected according to the pipeline interface position requirements.

[0056] Since the pipe cover 3 is adapted to the filter element hoop seat 10, specifically the cover body 31 is adapted to the seat body 101, and the cover block 32 is adapted to the seat groove 102, the pipeline can be well sealed before or after use to prevent foreign air from entering.

[0057] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A coal-fired flue gas adsorption device, characterized in that: It comprises an assembly tube (1) and a hose (2), two groups of the assembly tubes (1) are fixedly connected to the hose (2), a spiral tube (4), a filter element (8) and an air guide cover (9) are provided inside the assembly tube (1), both ends of the spiral tube (4) pass through the assembly tube (1) and are connected to a hot water tank (5), the spiral tube (4) is wrapped around the outer periphery of the filter element (8), a transition cavity (11) is provided at the gap between the spiral tube (4) and the filter element (8), the air guide cover (9) is fixedly mounted on one side of the filter element (8), the filter element (8) is connected to the transition cavity (11), and the filter element (8) is connected to the air guide cover (9); The air guide cover (9) includes a transition track (91), a first adapter ring (92) and a second adapter ring (93), the first adapter ring (92) and the second adapter ring (93) are both fixedly connected to the air guide cover (9), the transition track (91) is communicated with the transition chamber (11), an air inlet (95) is provided on one side of the transition track (91), an air duct (96) is provided on one side of the second adapter ring (93), the air inlet (95) is communicated with the air duct (96), the transition chamber (11) is communicated with the transition track (91), the transition track (91) is communicated with the air inlet (95), and the air duct (96) is communicated with the filter element (8); An air outlet hole (94) is provided inside the air guide cover (9), and the filter element (8) is in communication with the air outlet hole (94); After the coal-fired flue gas enters the assembly pipe (1), it will remain in the transition chamber (11), and cold water will be input into the spiral tube (4) through the hot water tank (5). The condensed water formed on the spiral tube (4) will initially adsorb the flue gas dust. Then, the flue gas will enter the filter element (8) through the air inlet (95) and the first adapter ring (92) for filtration, and then be output from the filter element (8) to the air outlet (94) to achieve secondary filtration.

2. The coal-fired flue gas adsorption device according to claim 1, characterized in that: It also includes a bending component (7), and the two groups of assembly tubes (1) are hinged through the bending component (7).

3. The coal-fired flue gas adsorption device according to claim 2, characterized in that: The hot water tank (5) is fixedly mounted on one side of the assembly pipe (1), and the hot water tank (5) is fixedly connected to the spiral pipe (4) via a hot water pipe (6).

4. The coal-fired flue gas adsorption device according to claim 3, characterized in that: A filter element hoop seat (10) is fixedly connected to the side of the filter element (8) away from the air guide cover (9), and the filter element hoop seat (10) is expansion-connected to the assembly pipe (1).

5. The coal-fired flue gas adsorption device according to claim 4, characterized in that: The bending assembly (7) comprises a first hinge (71), a connecting rod (72) and a second hinge (73), wherein the second hinge (73) is fixedly connected to the assembly tube (1), one end of the connecting rod (72) is rotatably connected to the second hinge (73), and the other end of the connecting rod (72) is rotatably connected to the first hinge (71).

6. The coal-fired flue gas adsorption device according to claim 5, characterized in that: It also includes a pipe cover (3), which is compatible with the filter element hoop seat (10).

7. The coal-fired flue gas adsorption device according to claim 6, characterized in that: The filter element hoop seat (10) comprises a seat body (101) and a seat groove (102); the pipe cover (3) comprises a cover body (31) and a cover block (32); the cover body (31) is adapted to the seat body (101), and the cover block (32) is adapted to the seat groove (102).

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