Environment-friendly flue gas treatment device for metal heating furnace

Abstract

The utility model relates to the technical field of flue gas treatment, and discloses a metal heating furnace environment-friendly flue gas treatment device which comprises a flue gas treatment box, an air inlet is formed in the right end of the flue gas treatment box, an air outlet is formed in the left end of the flue gas treatment box, supporting frames are fixedly connected to the left side wall and the right side wall of the flue gas treatment box, and a water tank is fixedly connected to the lower ends of the supporting frames. Drainage pipes are fixedly connected to the lower ends of the left and right sides of the flue gas treatment box; and the dust falling mechanism is arranged in the flue gas treatment box. According to the utility model, dust-containing flue gas enters the flue gas treatment box from the gas inlet, firstly passes through the dust falling mechanism to be settled and collected, then the flue gas continuously flows to the filtering mechanism to further remove residual fine particles, and finally, the purified flue gas is discharged from the gas outlet. The efficient cleaning of particulate matters in the flue gas of the metal heating furnace and the multi-stage filtration of the flue gas are realized, the purification efficiency of flue gas treatment is effectively improved, and the environmental pollution is reduced.

Description

Technical Field

[0001] This utility model relates to the field of flue gas treatment technology, and in particular to an environmentally friendly flue gas treatment device for a metal heating furnace. Background Technology

[0002] The metal smelting process generates a large amount of waste gas, wastewater, and slag. These byproducts cause severe environmental pollution. The waste gas mainly contains harmful gases such as sulfur dioxide, which can turn into acid rain when it rains, causing significant damage to soil, plants, and rivers. In addition, the waste gas also contains a large amount of particulate matter, which has a significant impact on air quality and visibility. Fine particulate matter, in particular, has a greater impact on human health and atmospheric environmental quality due to its small particle size, high content of toxic and harmful substances, long residence time in the atmosphere, and long transport distance. Fine particulate matter can penetrate deeper into the respiratory tract, directly affecting lung ventilation and making the body prone to hypoxia. Currently, the treatment of waste gas mainly focuses on desulfurization, but the treatment of particulate matter is equally important.

[0003] Existing flue gas treatment devices are not ideal in filtering and purifying flue gas. As a result, large particulate matter in the flue gas can easily clog the flue gas filter during the emission process, affecting the actual filtration effect and making it difficult to use and maintain in the long term. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, this utility model provides an environmentally friendly flue gas treatment device for metal heating furnaces, which solves the problem that large particulate matter contained in the flue gas easily clogs the flue gas filter device, affecting the actual filtration effect and hindering long-term use and maintenance.

[0005] This utility model provides an environmentally friendly flue gas treatment device for a metal heating furnace, including a flue gas treatment box. An air inlet is provided at the right end of the flue gas treatment box, and an exhaust port is provided at the left end of the flue gas treatment box. Support frames are fixedly connected to the left and right side walls of the flue gas treatment box, and a water tank is fixedly connected to the lower end of the support frames. Drainage pipes are fixedly connected to the lower ends of the left and right sides of the flue gas treatment box.

[0006] A dust suppression mechanism is installed inside the flue gas treatment box and is used to clean the flue gas particles inside the flue gas treatment box.

[0007] A filtration mechanism is fixedly connected to the inside of the left side of the flue gas treatment box. The filtration mechanism is used to filter the cleaned flue gas.

[0008] Preferably, the flue gas treatment box has an upper baffle and a lower baffle fixedly connected at equal intervals inside, and the upper baffle and the lower baffle are arranged in an alternating manner.

[0009] Preferably, the dust suppression mechanism includes a water pump and a water spray pipe. The water pump is fixedly connected to the inside of the front side of the water tank. A connecting pipe is fixedly connected to the water outlet end of the water pump. A branch pipe is fixedly connected to the end of the connecting pipe away from the water pump. The branch pipe extends into the flue gas treatment box. Multiple water spray pipes are provided and fixedly connected to the inside of the flue gas treatment box. The lower end of the branch pipe is fixedly connected to the upper end of the water spray pipe through a connecting pipe. Water spray holes are equidistantly opened on the side wall of the water spray pipe.

[0010] Preferably, the water spray pipe is arranged in an arc shape and located between the upper baffle and the lower baffle, and the water sprayed from the water spray hole is directed towards the drain pipe.

[0011] Preferably, a filter plate is fixedly connected inside the water tank, the drain pipe is located inside the water tank behind the filter plate, a sewage pipe and a water inlet pipe are fixedly connected to the right end of the water tank, the left end of the sewage pipe passes through the water tank behind the filter plate, and the left end of the water inlet pipe passes through the water tank in front of the filter plate.

[0012] Preferably, the filtration mechanism includes a primary filter and a secondary filter. Both the primary and secondary filters are fixedly connected to the inside of the left side of the flue gas treatment box. The primary filter is located to the right of the secondary filter. A baffle is fixedly connected inside the flue gas treatment box to the right of the primary filter, and a baffle is fixedly connected inside the flue gas treatment box to the left of the secondary filter.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model achieves efficient cleaning of particulate matter in the flue gas of metal heating furnaces and multi-stage filtration of the flue gas by setting up a dust-suppressing mechanism and a filtration mechanism, effectively improving the purification efficiency of flue gas treatment; the water pump and water spray pipe in the dust-suppressing mechanism spray water through the water spray holes to contact the particulate matter in the flue gas, causing it to settle and be collected, reducing the clogging and wear of the particulate matter on the subsequent filtration mechanism; the primary and secondary filters in the filtration mechanism perform multi-stage filtration of the cleaned flue gas, further removing residual fine particulate matter and ensuring the quality of the emitted flue gas.

[0015] 2. This utility model optimizes the contact area and residence time between flue gas and water by setting an upper baffle and a lower baffle inside the flue gas treatment box, thereby improving the settling efficiency of particulate matter in the flue gas and the recycling rate of water; by setting a filter plate inside the water tank, the water in the water tank can be recycled, thus achieving the effect of saving water. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall main structure of this utility model;

[0017] Figure 2This is a schematic diagram of the overall rear cross-sectional planar structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the overall right-side cross-sectional planar structure of this utility model;

[0019] Figure 4 This is a rear cross-sectional planar structural diagram of the filter mechanism of this utility model.

[0020] Numbering on the map:

[0021] 1. Flue gas treatment box; 11. Air inlet; 12. Exhaust outlet; 13. Drain pipe; 14. Upper baffle; 15. Lower baffle; 2. Support frame; 3. Dust suppression mechanism; 31. Water pump; 32. Connecting pipe; 33. Branch pipe; 34. Water spray pipe; 341. Water spray hole; 4. Water tank; 41. Filter plate; 42. Sewage pipe; 43. Water inlet pipe; 5. Filtration mechanism; 51. Barrier; 52. Primary filter screen; 53. Secondary filter screen. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. In this specification, "multiple" refers to two or more.

[0024] In the description of this specification, references to terms such as "embodiment," "one embodiment," and "one implementation" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation is included in at least one embodiment or illustrative embodiment of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.

[0025] Reference Figures 1-4As shown, this utility model embodiment provides an environmentally friendly flue gas treatment device for a metal heating furnace, including a flue gas treatment box 1. An air inlet 11 is provided at the right end of the flue gas treatment box 1, an exhaust port 12 is provided at the left end of the flue gas treatment box 1, a support frame 2 is fixedly connected to the left and right side walls of the flue gas treatment box 1, a water tank 4 is fixedly connected to the lower end of the support frame 2, and a drain pipe 13 is fixedly connected to the lower ends of the left and right sides of the flue gas treatment box 1.

[0026] Dust suppression mechanism 3 is installed inside flue gas treatment box 1 and is used to clean the flue gas particles inside flue gas treatment box 1.

[0027] The filter mechanism 5 is fixedly connected to the inside of the left side of the flue gas treatment box 1. The filter mechanism 5 is used to filter the cleaned flue gas. During operation, the dust-laden flue gas enters the flue gas treatment box 1 through the air inlet 11. It first passes through the dust settling mechanism 3, which causes it to settle and be collected. Then the flue gas continues to flow to the filter mechanism 5 to further remove residual fine particles. Finally, the purified flue gas is discharged from the exhaust port 12. In this way, the efficient cleaning of particulate matter in the flue gas of the metal heating furnace and the multi-stage filtration of the flue gas are achieved, which effectively improves the purification efficiency of flue gas treatment and reduces environmental pollution.

[0028] In a further embodiment, refer to Figures 2-3 The flue gas treatment box 1 has an upper baffle 14 and a lower baffle 15 fixedly connected at equal intervals inside, and the upper baffle 14 and the lower baffle 15 are arranged in an alternating manner. The dust suppression mechanism 3 includes a water pump 31 and a water spray pipe 34. The water pump 31 is fixedly connected to the front side of the water tank 4. The water outlet end of the water pump 31 is fixedly connected to a connecting pipe 32. The end of the connecting pipe 32 away from the water pump 31 is fixedly connected to a branch pipe 33. The branch pipe 33 passes through the inside of the flue gas treatment box 1. Multiple water spray pipes 34 are provided and fixedly connected to the inside of the flue gas treatment box 1. The lower end of the branch pipe 33 is fixedly connected to the upper end of the water spray pipe 34 through a connecting pipe. The side wall of the water spray pipe 34 is provided with water spray holes 341 at equal intervals. The water spray pipe 34 is set in an arc shape and is located between the upper baffle 14 and the lower baffle 15. The water sprayed from the water spray holes 341 is directed towards the drain pipe 13.

[0029] In this embodiment, when the dust-laden flue gas enters the flue gas treatment box 1 through the inlet 11, it first comes into contact with the staggered upper baffle 14 and lower baffle 15, increasing the flow path and residence time of the flue gas within the treatment box. This facilitates sufficient contact between the flue gas and water and the settling of particulate matter. Simultaneously, after the water pump 31 starts, water is transported to the spray pipe 34 through the connecting pipe 32 and branch pipe 33. The spray holes 341 on the side wall of the spray pipe 34 spray water into the flue gas. Since the spray pipe 34 is arc-shaped and located between the upper baffle 14 and the lower baffle 15, the sprayed water can be evenly distributed within the flue gas treatment box 1, making full contact with the particulate matter in the flue gas and causing it to settle. At the same time, the water is distributed to the water tank 4 through the drain pipe 13 and collected, effectively improving the flue gas treatment effect and reducing environmental pollution. In addition, the sprayed water flow can remove the temperature from the flue gas, achieving cooling treatment.

[0030] In a further embodiment, refer to Figures 2-3 A filter plate 41 is fixedly connected inside the water tank 4. The drain pipe 13 is located inside the water tank 4 behind the filter plate 41. A sewage pipe 42 and a water inlet pipe 43 are fixedly connected to the right end of the water tank 4. The left end of the sewage pipe 42 passes through the water tank 4 behind the filter plate 41, and the left end of the water inlet pipe 43 passes through the water tank 4 in front of the filter plate 41.

[0031] In this embodiment, after the water sprayed from the water spray pipe 34 comes into contact with the particulate matter in the flue gas, the water containing the particulate matter flows to the drain pipe 13 and enters the water tank 4 through the drain pipe 13. Inside the water tank 4, the water first passes through the filter plate 41 to remove the particulate matter in the water. The filtered water then re-enters the front of the water tank 4, forming a circulation. At the same time, the water containing the particulate matter can also be discharged from the water tank 4 through the drain pipe 42 for regular cleaning to avoid blockage inside the water tank 4. This not only improves the water recycling rate and reduces water waste, but also effectively intercepts the particulate matter in the water through the filter plate 41, preventing it from re-entering the flue gas treatment system and ensuring the effect of flue gas treatment. In addition, regularly cleaning the particulate matter inside the water tank 4 through the drain pipe 42 also helps to extend the service life of the equipment and reduce maintenance costs.

[0032] In a further embodiment, refer to Figure 4 The filtration mechanism 5 includes a primary filter 52 and a secondary filter 53. Both the primary filter 52 and the secondary filter 53 are fixedly connected to the inside of the left side of the flue gas treatment box 1. The primary filter 52 is located to the right of the secondary filter 53. A baffle 51 is fixedly connected inside the flue gas treatment box 1 located to the right of the primary filter 52. A baffle 51 is fixedly connected inside the flue gas treatment box 1 located to the left of the secondary filter 53.

[0033] In this embodiment, the flue gas, after being processed by the dust suppression mechanism 3, enters the left side of the flue gas treatment box 1. It first undergoes preliminary filtration through the primary filter 52 to remove larger particles. Then, the flue gas continues to flow to the secondary filter 53 for finer filtration to further remove smaller particles. The baffles 51 on both sides of the primary and secondary filters 52 and 53 are used to intercept larger particles from entering the interior of the primary and secondary filters 52 and 53. After two stages of filtration, the flue gas is finally discharged through the exhaust port 12, thereby achieving efficient removal of particulate matter from the flue gas of the metal heating furnace, significantly improving the quality of flue gas emissions, and reducing environmental pollution. This multi-stage filtration structure design not only improves filtration efficiency.

[0034] Although the disclosure is as stated above, the scope of protection of this disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the protection scope of this utility model.

Claims

1. An environmentally friendly flue gas treatment device for a metal heating furnace, comprising a flue gas treatment box (1), characterized in that, The flue gas treatment box (1) is provided with an air inlet (11) at the right end and an exhaust port (12) at the left end. The flue gas treatment box (1) is fixedly connected to the left and right side walls with a support frame (2). The lower end of the support frame (2) is fixedly connected to a water tank (4). The lower ends of the left and right sides of the flue gas treatment box (1) are fixedly connected to a drain pipe (13). Dust suppression mechanism (3) is installed inside the flue gas treatment box (1) and is used to clean the flue gas particles inside the flue gas treatment box (1). The filter mechanism (5) is fixedly connected to the inside of the left side of the flue gas treatment box (1). The filter mechanism (5) is used to filter the cleaned flue gas.

2. The environmentally friendly flue gas treatment device for a metal heating furnace according to claim 1, characterized in that, The flue gas treatment box (1) has an upper baffle (14) and a lower baffle (15) fixedly connected at equal intervals inside, and the upper baffle (14) and the lower baffle (15) are arranged in an alternating manner.

3. The environmentally friendly flue gas treatment device for a metal heating furnace according to claim 1, characterized in that, The dust suppression mechanism (3) includes a water pump (31) and a water spray pipe (34). The water pump (31) is fixedly connected to the front side of the water tank (4). A connecting pipe (32) is fixedly connected to the water outlet end of the water pump (31). A branch pipe (33) is fixedly connected to the end of the connecting pipe (32) away from the water pump (31). The branch pipe (33) extends into the flue gas treatment box (1). Multiple water spray pipes (34) are provided and fixedly connected to the inside of the flue gas treatment box (1). The lower end of the branch pipe (33) is fixedly connected to the upper end of the water spray pipe (34) through a connecting pipe. Water spray holes (341) are equidistantly opened on the side wall of the water spray pipe (34).

4. The environmentally friendly flue gas treatment device for a metal heating furnace according to claim 3, characterized in that, The water spray pipe (34) is arranged in an arc shape and is located between the upper baffle (14) and the lower baffle (15). The water sprayed from the water spray hole (341) is directed toward the drain pipe (13).

5. The environmentally friendly flue gas treatment device for a metal heating furnace according to claim 1, characterized in that, A filter plate (41) is fixedly connected inside the water tank (4). The drain pipe (13) is located inside the water tank (4) behind the filter plate (41). A sewage pipe (42) and a water inlet pipe (43) are fixedly connected to the right end of the water tank (4). The left end of the sewage pipe (42) extends into the water tank (4) behind the filter plate (41), and the left end of the water inlet pipe (43) extends into the water tank (4) in front of the filter plate (41).

6. The environmentally friendly flue gas treatment device for a metal heating furnace according to claim 1, characterized in that, The filtration mechanism (5) includes a primary filter (52) and a secondary filter (53). The primary filter (52) and the secondary filter (53) are both fixedly connected inside the left side of the flue gas treatment box (1). The primary filter (52) is located to the right of the secondary filter (53). A baffle (51) is fixedly connected inside the flue gas treatment box (1) located to the right of the primary filter (52). A baffle (51) is fixedly connected inside the flue gas treatment box (1) located to the left of the secondary filter (53).

Images