Flue gas dust removal device for cogeneration unit

Abstract

The utility model discloses a smoke dust removal device of a cogeneration unit, which relates to the field of smoke dust removal devices and comprises a tank body, an inner cavity is arranged in the tank body, a gas outlet is arranged at the top of the tank body, a gas delivery pipe is arranged on one side of the tank body, and an annular pipe is mounted at one end of the gas delivery pipe. And a plurality of sets of exhaust holes are formed in the two sides of the bottom of the annular pipe, a filter screen is fixed in the tank body, and a plurality of sets of dust removal plates are installed in the tank body. The problems of dust removal of flue gas and flying dust cleaning in industrial production are solved, after the flue gas is injected into the annular pipe through the arranged gas conveying pipe, the flue gas is discharged through the exhaust holes in the two sides of the bottom of the annular pipe and makes contact with dust removal liquid in the tank body, gas can be prevented from being discharged from one gas outlet point due to the arrangement of the exhaust holes, and the dust removal efficiency is improved. The contact between gas and dust removal liquid is increased, and flying dust can be prevented from being enriched on the conical circular truncated cone at the bottom of the inner cavity through exhaust of flue gas.

Description

Technical Field

[0001] This utility model relates to the field of flue gas dust removal devices, specifically a flue gas dust removal device for a combined heat and power unit. Background Technology

[0002] Flue gas dust removal is a crucial step in industrial production to purify flue gas and reduce air pollution. It mainly targets the separation and removal of solid particulate matter (dust) in the flue gas generated during combustion. These particles include not only visible dust but may also contain harmful metal oxides, condensates of acidic gases, and other tiny particles. The purpose of flue gas dust removal is to reduce particulate matter emissions into the atmosphere, protect the environment and human health, and meet increasingly stringent environmental regulations.

[0003] Before starting the flue gas dust collector, check that all components are intact, fasteners are secure, power cords and control systems are functioning properly, and inlet and outlet pipes are correctly connected and leak-free. Then, turn on the power switch, start the dust collector, and gradually adjust the airflow to operate the equipment under a suitable load. During operation, monitor the equipment's status to ensure there are no abnormal sounds or vibrations. Depending on the type of dust collector, perform regular cleaning to maintain dust removal efficiency.

[0004] Existing flue gas dust collectors use wind power for dust removal, which makes it difficult to contain the flue gas and causes it to leak out. In addition, existing flue gas dust collectors require disassembly and re-dust removal when cleaning the accumulated dust, which is not an effective dust removal method. Utility Model Content

[0005] Based on this, the purpose of this utility model is to provide a flue gas dust removal device for cogeneration units to solve the technical problems of dust removal and dust removal in industrial production.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a flue gas dust removal device for a cogeneration unit, comprising a tank, an inner cavity inside the tank, an air outlet at the top of the tank, an air supply pipe on one side of the tank, an annular pipe installed at one end of the air supply pipe, multiple sets of exhaust holes on both sides of the bottom of the annular pipe, a filter screen fixed inside the tank, and multiple sets of dust removal plates installed inside the tank.

[0007] By adopting the above technical solution, the problems of dust removal and dust removal in industrial production are solved. After the flue gas is injected into the annular pipe through the gas delivery pipe, the flue gas is discharged through the exhaust holes on both sides of the bottom of the annular pipe, and comes into contact with the dust removal liquid in the tank. The exhaust holes prevent the gas from being discharged from a single outlet, increasing the contact between the gas and the dust removal liquid. Furthermore, the discharge of the flue gas prevents dust from accumulating on the conical truncated cone at the bottom of the inner cavity. After the flue gas is discharged, it comes into contact with the filter screen and is broken into smaller flue gas bubbles, allowing the dust in the flue gas to further come into contact with the dust removal liquid, achieving the dust removal effect. The flue gas bubbles continue to float in the dust removal liquid and come into contact with the dust removal plates that are inclined inside the tank. The surface of the dust removal plates is provided with fixing protrusions, which break the flue gas bubbles and further enhance the dust removal effect of the device.

[0008] The present invention is further configured such that the bottom of the inner cavity is a conical frustum, a first rotating shaft is movably mounted on the bottom end of the inner wall of the inner cavity, and a scraper is fixed on the outer wall of the first rotating shaft, and the scraper is in contact with the bottom end of the inner wall of the inner cavity.

[0009] By adopting the above technical solution, the bottom is set as a conical truncated cone, which facilitates the collection of fly ash and makes it easy to clean. The scraper that fits against the bottom of the inner wall of the cavity increases the cleaning ability of the fly ash accumulated at the bottom of the inner cavity. Through the push of the scraper, the accumulated fly ash can flow better to the drain pipe and then be discharged.

[0010] The present invention is further configured such that an injection pipe is provided on one side of the tank and a drain pipe is provided on one side of the bottom of the tank.

[0011] By adopting the above technical solution, it is convenient to inject and discharge the dust removal liquid.

[0012] The present invention is further configured such that a first bevel gear is fixed to the end of the first rotating shaft, and a second rotating shaft is movably installed on one side of the bottom of the tank, and a second bevel gear is fixed to the end of the second rotating shaft.

[0013] By adopting the above technical solution, the scraper can be driven to rotate through the transmission between the first and second rotating shafts, thereby achieving the cleaning effect. The first and second rotating shafts are set on one side of the bottom of the tank, and the volume inside the tank is reduced to avoid affecting the liquid removal efficiency.

[0014] The present invention is further configured such that multiple sets of limiting blocks are fixed to the inner wall of the tank, and the limiting blocks are fixedly connected to the annular tube, wherein the diameter of the annular tube is larger than the diameter of the top of the cone at the bottom end of the inner wall of the inner cavity.

[0015] By adopting the above technical solution, the diameter of the annular pipe is larger, which avoids the accumulation of fly ash in the dust removal liquid on the top of the cone and avoids the exhaust port being too close, which would affect the dust removal effect. The multiple sets of limiting blocks fixed on the inner wall provide a supporting effect for the annular pipe, preventing the annular pipe from shaking during operation and causing adverse effects.

[0016] The present invention is further configured such that multiple sets of fixing protrusions are provided on one side of the dust removal plate, and the dust removal plate is inclined.

[0017] By adopting the above technical solution, the fixed protrusion will break the flue gas bubbles, enhance the dust removal effect of the device, and the inclined setting of the dust removal plate will facilitate the flue gas to float up and continue the dust removal process, thus achieving the desired effect.

[0018] The present invention is further configured such that the tank is filled with dust removal liquid, and the liquid level of the dust removal liquid is higher than that of the dust removal plate.

[0019] By adopting the above technical solutions, incomplete flue gas cleaning can be avoided, which would cause environmental pollution.

[0020] The present invention is further configured such that a rotating ring is fixed at the end of the second rotating shaft.

[0021] By adopting the above technical solution, it is easy to rotate the second rotating shaft, thereby rotating the scraper to clean the large particles at the bottom.

[0022] In summary, the present invention has the following main advantages:

[0023] 1. This utility model solves the problem of dust removal and dust removal from flue gas in industrial production by setting up a gas supply pipe, annular pipe, exhaust port, scraper, rotating ring, filter screen, limiting block, and dust removal plate. After the flue gas is injected into the annular pipe through the gas supply pipe, the flue gas is discharged through the exhaust ports on both sides of the bottom of the annular pipe, and comes into contact with the dust removal liquid in the tank. The exhaust port setting can prevent the gas from being discharged from a single outlet, increasing the contact between the gas and the dust removal liquid. Moreover, the discharge of flue gas can prevent dust from accumulating on the conical truncated cone at the bottom of the inner cavity. After the flue gas is discharged, it will come into contact with the filter screen and be broken into smaller flue gas bubbles, allowing the dust in the flue gas to further come into contact with the dust removal liquid, achieving the dust removal effect. The flue gas bubbles continue to float in the dust removal liquid and come into contact with the dust removal plate that is inclined inside the tank. The surface of the dust removal plate is provided with fixing protrusions, which break the flue gas bubbles and further enhance the dust removal effect of the device.

[0024] 2. In this utility model, the scraper is designed so that during the dust removal operation, the fly ash in the gas comes into contact with the dust removal liquid and forms large particles. The large particles will fall off and settle at the bottom of the inner cavity. During cleaning, the scraper rotates to remove the large particles inside. The large particles will be discharged with the liquid through the drain pipe to avoid any residue inside. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this utility model;

[0026] Figure 2 This is a detailed internal view of the present invention;

[0027] Figure 3 This is a cross-sectional view of the present invention;

[0028] Figure 4 This is a schematic diagram of the annular tube of this utility model.

[0029] In the diagram: 1. Tank body; 2. Gas supply pipe; 21. Ring pipe; 22. Exhaust port; 3. Liquid injection pipe; 4. Gas outlet; 5. Inner cavity; 6. First rotating shaft; 61. Second rotating shaft; 7. Scraper; 8. First bevel gear; 81. Second bevel gear; 9. Rotating ring; 10. Filter screen; 11. Limiting block; 12. Dust removal plate; 13. Fixing protrusion; 14. Liquid drain pipe. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0031] The embodiments of this utility model will be described below based on its overall structure.

[0032] A flue gas dust removal device for a combined heat and power unit, such as Figure 1 - Figure 4 As shown, the device includes a tank body 1, an inner cavity 5 inside the tank body 1, an air outlet 4 at the top of the tank body 1, an air supply pipe 2 on one side of the tank body 1, an annular pipe 21 installed at one end of the air supply pipe 2, multiple sets of exhaust holes 22 on both sides of the bottom of the annular pipe 21, a filter screen 10 fixed inside the tank body 1, and multiple sets of dust removal plates 12 installed inside the tank body 1.

[0033] Please see Figure 2 and Figure 3The bottom of the inner cavity 5 is set as a truncated cone. The bottom of the inner wall of the inner cavity 5 is movably installed with a first rotating shaft 6, and a scraper 7 is fixed on the outer wall of the first rotating shaft 6. The scraper 7 is in contact with the bottom of the inner wall of the inner cavity 5. The bottom is set as a truncated cone, which facilitates the collection of fly ash and makes it easy to clean. The scraper 7, which is in contact with the bottom of the inner wall of the inner cavity 5, increases the cleaning ability of the fly ash accumulated at the bottom of the inner cavity 5. By pushing the scraper 7, the accumulated fly ash can flow better to the drain pipe 14 and then be discharged.

[0034] Please see Figure 1 and Figure 2 A liquid injection pipe 3 is provided on one side of the tank body 1 and a liquid drain pipe 14 is provided on one side of the bottom of the tank body 1 to facilitate the injection and discharge of dust removal liquid.

[0035] Please see Figure 3 The first rotating shaft 6 has a first bevel gear fixed at its end and a first bevel gear 8 fixed at its end. A second rotating shaft 61 is movably installed on one side of the bottom of the tank body 1, and a second bevel gear 81 is fixed at its end. Through the transmission between the first rotating shaft 6 and the second rotating shaft 61, the scraper 7 can be driven to rotate, thereby achieving the cleaning effect. The first rotating shaft 6 and the second rotating shaft 61 are set on one side of the bottom of the tank body 1, and the internal volume of the tank body 1 is reduced to avoid affecting the liquid removal efficiency.

[0036] Please see Figure 2 and Figure 3 Multiple sets of limiting blocks 11 are fixed to the inner wall of the tank 1, and the limiting blocks 11 are fixedly connected to the annular pipe 21. The diameter of the annular pipe 21 is larger than the diameter of the top of the cone at the bottom of the inner wall of the inner cavity 5. The larger diameter of the annular pipe 21 prevents fly ash in the dust removal liquid from accumulating on the top of the cone and prevents the exhaust port 22 from being too close, which would affect the dust removal effect. The multiple sets of limiting blocks 11 fixed to the inner wall provide support for the annular pipe 21 and prevent the annular pipe 21 from shaking during operation, which would have an adverse effect.

[0037] Please see Figure 2 and Figure 3 The dust removal plate 12 has multiple sets of fixing protrusions 13 on one side, and the dust removal plate 12 is inclined. The fixing protrusions 13 will break the flue gas bubbles and enhance the dust removal effect of the device. The inclined setting of the dust removal plate 12 makes it easy for the flue gas to float up and continue the dust removal process to achieve the desired effect.

[0038] Please see Figure 1 and Figure 2 The tank 1 is filled with dust removal liquid, and the liquid level is higher than the dust removal plate 12 to avoid incomplete cleaning of flue gas and environmental pollution caused by discharge.

[0039] Please see Figure 3A rotating ring 9 is fixed to the end of the second rotating shaft 61, which facilitates the rotation of the second rotating shaft 61, thereby rotating the scraper 7 to clean the large particles at the bottom.

[0040] The working principle of this utility model is as follows: First, connect the exhaust pipe to the outlet 4, close the drain pipe 14, and inject dust removal liquid through the injection pipe 3 set on one side of the tank 1. The surface of the dust removal liquid is higher than the dust removal plate 12. Close the injection pipe 3, open the gas valve to inject flue gas, and the flue gas enters the annular pipe 21 through the gas delivery pipe 2. The annular pipe 21 is set on the conical truncated cone at the bottom of the inner cavity 5 and is fixed and supported by the limiting block 11 to prevent the annular pipe 21 from shaking when the flue gas is injected. The flue gas is discharged through the exhaust holes 22 set on both sides of the annular pipe 21, forming flue gas bubbles inside the dust removal liquid. The flue gas bubbles float up and are divided by the filter screen 10 to form smaller flue gas bubbles, allowing the fly ash in the flue gas to further contact the dust removal liquid to achieve the dust removal effect. The smaller flue gas bubbles continue to float up and will contact the dust removal plate 12. 2. The dust removal plate 12 is inclined and the fixed protrusion 13 installed on the surface of the dust removal plate 12 will contact the flue gas bubbles and break them, which will enhance the dust removal effect of the device and allow the gas to contact the dust removal liquid for a longer time, so as to better clean the fly ash in the bubbles. After the flue gas bubbles pass through multiple sets of dust removal plates 12, they are discharged from the air outlet 4 at the top of the tank 1. After the dust removal process is completed, the air supply pipe 2 is not closed temporarily, air is input, and the drain pipe 14 is opened. The second bevel gear 81 at one end of the second rotating shaft 61 is rotated by the rotating ring 9. The first bevel gear 8 and the second bevel gear 81 mesh, driving the first rotating shaft 6, thereby rotating the scraper 7. The scraper 7 cleans the large particles at the bottom. The large particles will be discharged with the liquid through the drain pipe 14 to avoid the residue at the bottom.

[0041] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A flue gas dust removal device for a combined heat and power unit, comprising a tank (1), characterized in that: The tank (1) has an inner cavity (5) inside, an air outlet (4) at the top of the tank (1), an air supply pipe (2) on one side of the tank (1), an annular pipe (21) installed at one end of the air supply pipe (2), and multiple sets of exhaust holes (22) on both sides of the bottom of the annular pipe (21). A filter screen (10) is fixed inside the tank (1), and multiple sets of dust removal plates (12) are installed inside the tank (1).

2. The flue gas dust removal device for a combined heat and power unit according to claim 1, characterized in that: The bottom of the inner cavity (5) is set as a cone-shaped frustum. A first rotating shaft (6) is movably installed at the bottom end of the inner wall of the inner cavity (5), and a scraper (7) is fixed on the outer wall of the first rotating shaft (6), and the scraper (7) is in contact with the bottom end of the inner wall of the inner cavity (5).

3. The flue gas dust removal device for a combined heat and power unit according to claim 1, characterized in that: A liquid injection pipe (3) is provided on one side of the tank (1), and a liquid drain pipe (14) is provided on one side of the bottom of the tank (1).

4. The flue gas dust removal device for a combined heat and power unit according to claim 2, characterized in that: The first rotating shaft (6) is fixed with a first bevel gear (8) at its end, and a second rotating shaft (61) is movably installed on one side of the bottom of the tank (1), and a second bevel gear (81) is fixed at the end of the second rotating shaft (61).

5. The flue gas dust removal device for a combined heat and power unit according to claim 1, characterized in that: The inner wall of the tank (1) is fixed with multiple sets of limiting blocks (11), and the limiting blocks (11) are fixedly connected to the annular tube (21). The diameter of the annular tube (21) is larger than the diameter of the top of the cone at the bottom of the inner wall of the inner cavity (5).

6. The flue gas dust removal device for a combined heat and power unit according to claim 1, characterized in that: The dust removal plate (12) is provided with multiple sets of fixing protrusions (13) on one side, and the dust removal plate (12) is inclined.

7. The flue gas dust removal device for a combined heat and power unit according to claim 1, characterized in that: The tank (1) is filled with dust removal liquid, and the liquid level is higher than that of the dust removal plate (12).

8. A flue gas dust removal device for a combined heat and power unit according to claim 4, characterized in that: A rotating ring (9) is fixed to the end of the second rotating shaft (61).

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