Flue gas treatment device
By increasing the contact surface between flue gas and water and using the principle of synergistic interaction between magneto and liquid, the problem of removing particulate matter and pollutants in flue gas in electric furnaces and boilers is solved, and efficient purification of flue gas and environmental protection and energy-saving effects are achieved.
Patent Information
- Application Number
- CN202420666670.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-02
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-04-02
AI Technical Summary
The prior art is difficult to effectively remove particulate matter and pollutants in the flue gas emitted by electric furnaces and boilers, resulting in environmental pollution.
By increasing the contact surface between flue gas and water, the principle of magnetic and liquid synergistic action is used to magnetize water, enhance the wetting effect, and deposit suspended particles, thereby achieving dust removal and desulfurization.
It has achieved efficient purification of flue gas, significantly reduced particulate matter emissions, and has the effect of environmental protection and energy conservation and emission reduction.
Smart Images
Figure CN222266567U_ABST
Abstract
Description
Technical Field
[0001] The present application generally relates to the field of air purification technology, and more specifically, the present application relates to a flue gas treatment device. Background Art
[0002] Atmospheric pollutants emitted by electric furnaces and boilers cause great harm to the surrounding environment, so the technology of removing particulate matter from dust-laden gases to reduce their emission into the atmosphere is becoming increasingly important.
[0003] Therefore, there is a need for a flue gas treatment device that can effectively purify flue gas. Utility Model Content
[0004] In order to solve the above technical problems, this application is proposed. The embodiment of this application provides a flue gas treatment device, which can promote the full dissolution and neutralization of flue gas and water by increasing the contact surface between flue gas and aqueous solution, achieve dust removal and desulfurization of dust collector, and has a significant environmental protection effect on industrial waste gas treatment and energy saving and emission reduction.
[0005] According to an exemplary embodiment, a flue gas treatment device is provided, comprising: a closed shell, on which a cooling water inlet and a cooling water outlet are provided on the side wall of the shell, as well as a smoke inlet on the side wall of the shell and a smoke outlet on the wall of the shell, a liquid cavity for containing liquid being formed inside the shell; a smoke cooling box in an annular, partially annular or spiral shape, located inside the closed shell and connected to the smoke inlet; and a smoke purification unit, which is connected to the smoke cooling box and is used for purifying the smoke from the smoke cooling box and is connected to the smoke outlet.
[0006] In one example, the flue gas purification unit has a flue gas inlet pipe connected to the flue gas cooling box and connected to the flue gas purification unit at an angle of 40 degrees, 50 degrees, 60 degrees or any angle between 40 degrees and 60 degrees to the vertical direction.
[0007] In one example, the flue gas purification unit has a flue gas purification tank and a flue gas water inlet pipe, the flue gas purification tank contains water to purify the flue gas, and the flue gas water purification pipe is connected to the flue gas purification tank to supply water to the flue gas purification tank.
[0008] In one example, the flue gas treatment device further includes a magnetic device, at least a portion of which is disposed outside the flue gas water inlet pipe. In this example, the magnetic device is used to magnetize water and the magnetized water is used as a filter element to purify the flue gas from the flue gas cooling box in the flue gas purification unit. In addition, a portion of the magnetic device may also be disposed in the liquid chamber.
[0009] In one example, the flue gas treatment device also has a sewage discharge unit, which measures the waste gas and waste water in the liquid chamber and automatically discharges them in a quantitative manner from the shell; the closed shell also has a sewage discharge port, which is connected to the sewage discharge unit; the flue gas purification unit has a sewage discharge port, which is connected to the sewage discharge port of the closed shell and the sewage discharge unit.
[0010] In one example, the sewage unit has a sewage meter and a valve.
[0011] In one example, the flue gas treatment device further includes a flue gas cooling box automatic cleaning unit, which is disposed on the flue gas cooling box and automatically cleans the wall surface of the flue gas cooling box.
[0012] In one example, the flue gas cooling box automatic cleaning unit comprises an inner cleaning component located at the inner side of the flue gas cooling box; and a driving mechanism connected to the inner cleaning component.
[0013] In one example, the flue gas cooling box automatic cleaning unit further comprises an outer cleaning component located outside the flue gas cooling box, and the inner cleaning component and the outer cleaning component are connected in a manner that they can move together.
[0014] In one example, the flue gas cooling box automatic cleaning unit has an inner cleaning component located on the inner side of the flue gas cooling box; an outer cleaning component located on the outer side of the flue gas cooling box; and a driving mechanism that connects the outer cleaning component, and the outer cleaning component and the inner cleaning component are connected in a manner that allows them to move together.
[0015] In another example, the flue gas cooling box automatic cleaning unit has an inner cleaning component located on the inner side of the flue gas cooling box; an inner driving mechanism located on the inner side of the flue gas cooling box and connected to the inner cleaning component; an outer cleaning component located on the outer side of the flue gas cooling box; and an outer driving mechanism located on the outer side of the flue gas cooling box and connected to the outer cleaning component.
[0016] Compared with the prior art, the flue gas treatment device according to the embodiment of the present application can allow the flue gas to pass through the flue gas cooling box, and the heat carried by the flue gas is transferred to the cooling water in the liquid cavity in the closed shell, so as to make full use of the industrial waste heat carried by the flue gas; after passing through the flue gas cooling box, the flue gas passes through the flue gas water inlet pipe into the liquid cavity, and the suspended particles in the flue gas are deposited in the magnetized water, thereby achieving the purpose of filtering and dust removal. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 A three-dimensional schematic diagram of a flue gas treatment device according to an embodiment of the present application is shown.
[0018] Figure 2 Shows Figure 1 A side view of a flue gas treatment device;
[0019] Figure 3 Shows Figure 2 Schematic cross-sectional view of a flue gas treatment device.
[0020] Figure 4 A schematic diagram of the assembly of a flue gas cooling box and a flue gas purification unit of a flue gas treatment device according to an embodiment of the present application is shown. DETAILED DESCRIPTION
[0021] The basic concept of the present application is to apply the principle that dust has wettability, that is, after the suspended particles are combined with liquid (for example, water), their volume becomes larger and their mass will also increase, so that they are easily deposited and removed.
[0022] Specifically, considering that in industrial waste gas (i.e., flue gas), liquid-soluble (e.g., water-soluble) substances such as NH3, NO x Pollutant gases such as (nitrogen oxide-based gases) are easily absorbed or attached to the surface of particles. Since these pollutants are easily soluble in water, they can be easily filtered out by water. In addition, even the suspended fine particles in the flue gas that are insoluble in water will be wetted by water. After the wetted suspended fine particles absorb water, their volume increases and their mass increases, making them easy to filter out, so as to fully purify the flue gas.
[0023] Therefore, in an embodiment of the present application, a flue gas treatment device is provided, which can effectively utilize the principle of magnetic liquid synergy to remove suspended particulate matter in the flue gas by magnetizing the liquid.
[0024] Specifically, by using a magnetic device to magnetize liquid (for example, water), when the flue gas flows and drives the water to flip up and down, the charged particles such as hydronium ions in the water interact with the magnetic dipole in the magnetic field, turning them into a metastable structure of smaller water "molecular clusters". The ability to moisten various particles in the flue gas is enhanced, and the activity of the particles in the flue gas is also enhanced, making them easier to deposit, so that the particles become larger in size and less active after being moistened, and thus can be removed.
[0025] Various exemplary embodiments of the present application will be described below with reference to the accompanying drawings.
[0026] Figure 1 A three-dimensional schematic diagram of a flue gas treatment device 100 according to an embodiment of the present application is shown. Figure 2 and 3 They are shown respectively Figure 1 Side view and cross-sectional view of the flue gas treatment device shown. Figure 4 Shows Figure 1 The schematic diagram of the assembly of the flue gas cooling box and the flue gas purification unit is shown.
[0027] like Figure 1-4 As shown, the flue gas treatment device 100 includes a housing 110, a magnetic device 120, a flue gas cooling box 130, a flue gas purification unit 140, a sewage discharge unit and a flue gas cooling box automatic cleaning unit.
[0028] The shell 110 is closed and cylindrical or in any shape. A cooling water inlet 111 and a cooling water outlet 112 are respectively provided on the upper and lower sides of the side wall of the shell 110 for the inlet and outlet of cooling water, so that the cooling water enters and exits the liquid cavity 115 through the cooling water inlet 111 and the cooling water outlet 112, so that the water in the liquid cavity 115 does not evaporate. A smoke inlet 113 is also provided on the side wall of the shell 110, and a smoke outlet 114 is provided on the top wall of the shell 110 for the inlet and outlet of smoke. The shell 110 forms a liquid cavity 115 inside. A sewage outlet 116 is provided on the lower side or bottom wall of the side wall of the shell 110 for discharging dirt in the liquid cavity 115 inside the shell 110, such as particulate matter and water filtered out from the smoke.
[0029] The flue gas cooling box 130 is annular, partially annular or spiral, and is located in the liquid cavity 115, and is at least partially immersed in the water in the liquid cavity 115, so that the flue gas is fully cooled in the cooling water. For example, the temperature of the flue gas entering the flue gas cooling box 130 is expected to be 200°C, and after being fully cooled by the flue gas cooling box 130, the temperature drops to about 80°C. The flue gas cooling box 130 is connected to the flue gas inlet 113 on one hand, and is connected to the flue gas purification unit 140 on the other hand.
[0030] The flue gas purification unit 140 includes a flue gas inlet pipe 141 , a flue gas purification tank 142 and a flue gas water inlet pipe 143 .
[0031] The flue gas cooling box 130 is connected to the flue gas purification tank 142 through the flue gas inlet pipe 141. The flue gas inlet pipe 141 is connected to the flue gas purification tank 142 at any angle between 40 degrees and 60 degrees from the vertical direction, such as 40 degrees, 50 degrees or 60 degrees. The flue gas enters the water in the flue gas purification tank 142 from the flue gas cooling box 130 through the flue gas inlet pipe 141, and is purified by the water in the flue gas purification tank 142.
[0032] The flue gas water inlet pipe 143 passes through the shell 110 and extends to the outside of the shell 110 for supplying water to the flue gas purification tank 142 .
[0033] The flue gas purification tank 142 has a sewage outlet for discharging suspended particulate matter deposited in the flue gas purification tank 142 out of the flue gas purification tank 142 .
[0034] The magnetic device 120 is, for example, a magnetic sheet, at least a portion of which can be disposed outside the housing 110 and outside the flue gas water inlet pipe 143. The magnetic device 120 can also be partially disposed in the liquid chamber 115 inside the housing 110 and disposed outside the cooling water inlet 111. The magnetic device 120 magnetizes the cooling water in the cooling water inlet 111 and / or the water in the flue gas water inlet pipe 143. In this way, the cooling water entering the liquid chamber 115 and / or the water entering the flue gas purification tank 142 of the flue gas purification unit 140 is magnetized by the magnetic device 120, so as to prevent scale from being generated in the relevant pipelines, thereby achieving the effect of protecting the equipment.
[0035] The sewage discharge unit is located at the sewage discharge port 116 of the housing 110 and is connected to the sewage discharge port 116 of the housing 110 and the sewage discharge port of the flue gas purification unit 140. The sewage discharge unit has a sewage meter and a valve. The sewage meter measures the sedimentation height or mass of the sewage and activates the valve to discharge the sewage from the liquid chamber 115 when a certain threshold is reached.
[0036] The drain unit is located in the liquid chamber 115. However, the drain unit may also be located outside the liquid chamber 115, or partly in the liquid chamber 115 and partly outside the liquid chamber 115, as required.
[0037] The flue gas cooling box automatic cleaning unit is disposed on the flue gas cooling box 130 and automatically cleans the wall surface of the flue gas cooling box 130 , for example, the inner wall surface and / or the outer wall surface of the flue gas cooling box 130 .
[0038] In one example, the flue gas cooling box automatic cleaning unit comprises an inner cleaning component, which is located inside the flue gas cooling box 130 and is used to clean the inner wall surface of the flue gas cooling box 130; and a driving mechanism, which is connected to the inner cleaning component and is used to drive the inner cleaning component to move along the inner wall surface of the flue gas cooling box 130. The cleaning component can be, for example, a scraper. The driving mechanism can be, for example, a motor.
[0039] In another example, the flue gas cooling box automatic cleaning unit also has an outer cleaning component, which is located on the outside of the flue gas cooling box 130 and is used to clean the outer wall of the flue gas cooling box 130, and the outer cleaning component can be connected to the inner cleaning component in a manner that allows them to move together, such as magnetically connected, so that when the driving mechanism drives the inner cleaning component to move, the outer cleaning component moves together with the inner cleaning component.
[0040] In another example, the flue gas cooling box automatic cleaning unit has an inner cleaning component located on the inner side of the flue gas cooling box 130; an outer cleaning component located on the outer side of the flue gas cooling box 130; and a driving mechanism, which is connected to the outer cleaning component, and the outer cleaning component and the inner cleaning component are connected in a manner that they can move together, so that the outer cleaning component drives the inner cleaning component to move together when driven by the driving mechanism.
[0041] In another example, the flue gas cooling box automatic cleaning unit has an inner cleaning component located on the inner side of the flue gas cooling box 130; and an inner driving mechanism located on the inner side of the flue gas cooling box 130 and connected to the inner cleaning component; an outer cleaning component located on the outer side of the flue gas cooling box 130; and an outer driving mechanism located on the outer side of the flue gas cooling box and connected to the outer cleaning component.
[0042] In summary, in the flue gas treatment device of the present application, cooling water enters the liquid cavity 115 of the shell 110 through the cooling water inlet 111; industrial waste gas (i.e., flue gas) enters the flue gas cooling box 130 through the flue gas inlet 113, and after being fully cooled by the cooling water in the liquid cavity 115, enters the flue gas purification tank 142 through the flue gas inlet pipe 141. In the flue gas purification tank 142, under the action of magnetic water, the suspended particles in the flue gas are deposited on the bottom wall of the shell flue gas purification tank 142, and the purified gas leaves the shell 110 through the flue gas outlet 114. The cooling water in the liquid cavity 115 leaves the shell 110 through the cooling water outlet 112 after reaching a certain temperature. The present application has a simple structure, a significant dust removal effect, and a good application prospect.
[0043] Some embodiments of the present application have been described above. It should be understood that the present application is not limited to these embodiments, but various modifications, changes and substitutions can be made. For example, the interface described above can adopt various suitable interfaces in the prior art, as long as the requirements of sealing or ventilation are met. The scope of the present application is defined by the attached claims and their equivalents.
Claims
1. A flue gas treatment device, characterized in that: include: A closed shell is provided with a cooling water inlet and a cooling water outlet located on the side wall of the shell, a smoke inlet located on the side wall of the shell and a smoke outlet located on the wall of the shell, and a liquid cavity for containing liquid is formed inside the closed shell; a flue gas cooling box, which is annular, partially annular or spiral, and is located inside the closed shell and connected to the flue gas inlet; as well as A flue gas purification unit is connected to the flue gas cooling box, is used for purifying the flue gas from the flue gas cooling box, and is connected to the flue gas outlet.
2. The flue gas treatment device according to claim 1, characterized in that: The flue gas purification unit has a flue gas inlet pipe connected to the flue gas cooling box and connected to the flue gas purification unit at an angle of 40 degrees, 50 degrees, 60 degrees or any angle between 40 degrees and 60 degrees to the vertical direction.
3. The flue gas treatment device according to claim 1, characterized in that: The flue gas purification unit comprises a flue gas purification tank and a flue gas water inlet pipe. The flue gas purification tank contains water for purifying flue gas. The flue gas water inlet pipe is connected with the flue gas purification tank to supply water to the flue gas purification tank.
4. The flue gas treatment device according to claim 3, characterized in that: The flue gas treatment device further comprises a magnetic device, at least a part of which is arranged in the liquid cavity or outside the flue gas water inlet pipe.
5. The flue gas treatment device according to claim 1, characterized in that: The fume treatment device further comprises a sewage discharge unit, which measures the sewage in the liquid chamber and discharges the sewage from the housing in a quantitative and automatic manner; The closed shell also has a sewage outlet, which is connected to the sewage discharge unit; The flue gas purification unit has a sewage outlet, which is connected with the sewage outlet of the closed shell and the sewage outlet unit.
6. The flue gas treatment device according to claim 5, characterized in that: The sewage unit has a sewage measuring meter and a valve.
7. The flue gas treatment device according to claim 1, characterized in that: Also includes: The flue gas cooling box automatic cleaning unit is arranged on the flue gas cooling box and automatically cleans the wall surface of the flue gas cooling box.
8. The flue gas treatment device according to claim 7, characterized in that: The flue gas cooling box automatic cleaning unit comprises an inner cleaning component located at the inner side of the flue gas cooling box; and a driving mechanism connected to the inner cleaning component.
9. The flue gas treatment device according to claim 8, characterized in that: The flue gas cooling box automatic cleaning unit further comprises an outer cleaning component located outside the flue gas cooling box, and the inner cleaning component and the outer cleaning component are connected in a manner that they can move together.
10. The flue gas treatment device according to claim 7, characterized in that: The flue gas cooling box automatic cleaning unit comprises an inner cleaning component located on the inner side of the flue gas cooling box; an outer cleaning component located on the outer side of the flue gas cooling box; and a driving mechanism connected to the outer cleaning component, wherein the outer cleaning component and the inner cleaning component are connected in a manner that they can move together.