Smelting furnace waste gas treatment device

Abstract

The utility model discloses a waste gas treatment device for a smelting furnace, which belongs to the technical field of waste gas treatment, aims at solving the problem that high-temperature waste gas generated by production of the smelting furnace is directly subjected to precipitation treatment to prevent subsequent treatment equipment from being damaged by the high-temperature waste gas, and comprises a gas inlet pipe, a cooling mechanism, a connecting pipe, a precipitation treatment mechanism and an exhaust pipe, the cooling mechanism is arranged on the right side of the air inlet pipe, the connecting pipe is arranged on the right side of the cooling mechanism, the precipitation treatment mechanism is arranged on the right side of the connecting pipe, and the exhaust pipe is arranged on the right side of the precipitation treatment mechanism; through the arrangement of the gas inlet pipe, the cooling mechanism and the connecting pipe, high-temperature waste gas enters the heat conduction coil pipe through the gas inlet pipe, heat exchange is carried out on a water body in the treatment box through the heat conduction coil pipe, meanwhile, the temperature of the waste gas in the heat conduction coil pipe is reduced, cooling of the waste gas is completed, and hot water can be discharged through the drain pipe at the bottom; therefore, heat in the waste gas can be recycled, and energy waste is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of waste gas treatment technology, specifically relating to a waste gas treatment device for smelting furnaces. Background Technology

[0002] The process of remelting scrap metal generates many harmful gases. If these gases are released directly into the air, they will cause great pollution to the environment.

[0003] The prior art patent publication number CN220918567U describes a smelting furnace exhaust gas treatment device. This patent incorporates a sedimentation device. A water pump draws water from a water supply tank into a sprayer, causing the sprayed water mist to mix with dust particles in the gas. These dust particles are then trapped on a filter layer. An air intake device extracts the gas, purifying the air in the production environment and discharging wastewater through a drain pipe. A transmission mechanism pushes the filter layer out of the sedimentation tank, facilitating cleaning and ensuring continuous filtration. While the sedimentation device settles dust particles in the exhaust gas and addresses the need for frequent cleaning to prevent filter clogging, it has the following shortcomings in practical use: In practice, this device directly treats the high-temperature exhaust gas generated by the smelting furnace, preventing damage to subsequent treatment equipment and reducing treatment efficiency. Furthermore, direct discharge results in energy waste.

[0004] Therefore, a furnace exhaust gas treatment device is needed to solve the problem in the existing technology of directly precipitating the high-temperature exhaust gas generated by the furnace to prevent the high-temperature exhaust gas from damaging subsequent treatment equipment. Utility Model Content

[0005] The purpose of this invention is to provide a furnace exhaust gas treatment device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a smelting furnace exhaust gas treatment device, comprising an inlet pipe, a cooling mechanism, a connecting pipe, a sedimentation treatment mechanism, and an exhaust pipe, wherein the cooling mechanism is located on the right side of the inlet pipe, the connecting pipe is located on the right side of the cooling mechanism, the sedimentation treatment mechanism is located on the right side of the connecting pipe, and the exhaust pipe is located on the right side of the sedimentation treatment mechanism.

[0007] The cooling mechanism consists of a processing box, an observation window, a water inlet pipe, a drain pipe, a cleaning component, and a heat-conducting coil. The front of the processing box has an installation groove, the observation window is fixedly connected to the inside of the installation groove, the water inlet pipe is fixedly connected to the top of the back plate of the processing box, the drain pipe is fixedly connected to the bottom of the back plate of the processing box, the cleaning component is located in the middle of the processing box, and the heat-conducting coil is fixedly connected to the inside of the processing box.

[0008] It should be noted in the design that the observation window is made of high-temperature resistant glass.

[0009] It is worth noting that the two ends of the heat-conducting coil are connected to the air inlet pipe and the connecting pipe, respectively.

[0010] Furthermore, it should be noted that the cleaning assembly consists of a motor, a threaded rod, a connecting rod, a cleaning plate, and a cleaning brush. The motor is fixedly connected to the front of the processing box, the threaded rod is rotatably connected to the inside of the processing box, and the front end of the threaded rod is connected to the output end of the motor. The connecting rod is threadedly connected to the outside of the threaded rod.

[0011] In a preferred embodiment, the cleaning plate is fixedly connected to one end of the connecting rod, and a circular through groove is provided inside the cleaning plate, with cleaning brushes uniformly fixedly connected inside the circular through groove.

[0012] In a preferred embodiment, the size of the circular through groove is larger than the diameter of the heat-conducting coil, and the pipe of the heat-conducting coil is disposed inside the circular through groove, and the connecting rod is provided with through holes evenly distributed.

[0013] In a preferred embodiment, the threaded rod is aligned with the axis of the heat-conducting coil, and the pitch of the threaded rod is the same as the distance between the upper and lower pipes of the heat-conducting coil.

[0014] Compared with the prior art, the smelting furnace exhaust gas treatment device provided by this utility model has at least the following beneficial effects:

[0015] (1) Through the inlet pipe, cooling mechanism and connecting pipe, the high temperature exhaust gas enters the interior of the heat conduction coil through the inlet pipe. The heat conduction coil exchanges heat with the water inside the treatment box and reduces the temperature of the exhaust gas inside the heat conduction coil, thus completing the cooling of the exhaust gas. The hot water can be discharged through the drain pipe at the bottom, so that the heat in the exhaust gas can be recovered and utilized, avoiding energy waste.

[0016] (2) When the exhaust gas is cooled by the heat conduction coil, scale tends to accumulate on the heat conduction coil over time. The cleaning components can be installed to clean the scale on the heat conduction coil, so that the cooling mechanism can maintain excellent cooling effect and achieve energy saving. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 This is a first-view cross-sectional structural diagram of the cooling mechanism of this utility model;

[0019] Figure 3 This is a second-view cross-sectional structural diagram of the cooling mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the cleaning component structure of this utility model.

[0021] In the diagram: 1. Inlet pipe; 2. Cooling mechanism; 3. Connecting pipe; 4. Sedimentation treatment mechanism; 5. Exhaust pipe; 201. Treatment box; 202. Observation window; 203. Water inlet pipe; 204. Drain pipe; 205. Cleaning assembly; 206. Heat transfer coil; 2051. Motor; 2052. Threaded rod; 2053. Connecting rod; 2054. Cleaning plate; 2055. Through hole; 2056. Circular through groove; 2057. Cleaning brush. Detailed Implementation

[0022] The present invention will be further described below with reference to the embodiments.

[0023] Please see Figure 1-4 This utility model provides a furnace exhaust gas treatment device, including an inlet pipe 1, a cooling mechanism 2, a connecting pipe 3, a sedimentation treatment mechanism 4, and an exhaust pipe 5. The cooling mechanism 2 is located on the right side of the inlet pipe 1, the connecting pipe 3 is located on the right side of the cooling mechanism 2, the sedimentation treatment mechanism 4 is located on the right side of the connecting pipe 3, and the exhaust pipe 5 is located on the right side of the sedimentation treatment mechanism 4.

[0024] The cooling mechanism 2 consists of a processing box 201, an observation window 202, a water inlet pipe 203, a drain pipe 204, a cleaning component 205, and a heat conduction coil 206. The front of the processing box 201 has an installation groove. The observation window 202 is fixedly connected to the inside of the installation groove. The water inlet pipe 203 is fixedly connected to the top of the back plate of the processing box 201. The drain pipe 204 is fixedly connected to the bottom of the back plate of the processing box 201. The cleaning component 205 is located in the middle of the processing box 201. The heat conduction coil 206 is fixedly connected to the inside of the processing box 201.

[0025] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth noting that the observation window 202 is equipped with high-temperature resistant glass;

[0026] The glass allows staff to clearly observe the interior of the exhaust gas treatment chamber; and the high-temperature resistant glass has high heat resistance, able to withstand the high-temperature environment inside the exhaust gas treatment chamber without cracking or deforming.

[0027] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth noting that the two ends of the heat conduction coil 206 are connected to the air inlet pipe 1 and the connecting pipe 3, respectively.

[0028] According to the above working process, the high-temperature exhaust gas enters the interior of the heat-conducting coil 206 through the intake pipe 1, cooling mechanism 2, and connecting pipe 3. The heat-conducting coil 206 exchanges heat with the water inside the treatment tank 201, thereby reducing the temperature of the exhaust gas inside the heat-conducting coil 206 and completing the cooling of the exhaust gas. The hot water can be discharged through the drain pipe 204 at the bottom, thus recovering and utilizing the heat in the exhaust gas and avoiding energy waste.

[0029] Further as Figure 2 , Figure 3 and Figure 4 As shown, it is worth noting that the cleaning assembly 205 consists of a motor 2051, a threaded rod 2052, a connecting rod 2053, a cleaning plate 2054, and a cleaning brush 2057. The motor 2051 is fixedly connected to the front of the processing box 201, the threaded rod 2052 is rotatably connected to the inside of the processing box 201, and the front end of the threaded rod 2052 is connected to the output end of the motor 2051. The connecting rod 2053 is threadedly connected to the outside of the threaded rod 2052.

[0030] Further as Figure 2 , Figure 3 and Figure 4 As shown, it is worth noting that the cleaning plate 2054 is fixedly connected to one end of the connecting rod 2053, and a circular through groove 2056 is provided inside the cleaning plate 2054. Cleaning brushes 2057 are evenly fixedly connected inside the circular through groove 2056.

[0031] Further as Figure 2 , Figure 3 and Figure 4 As shown, it is worth noting that the size of the circular through groove 2056 is larger than the diameter of the heat conduction coil 206, and the pipe of the heat conduction coil 206 is set inside the circular through groove 2056. The connecting rod 2053 is evenly provided with through holes 2055.

[0032] By using the through hole 2055, when the connecting block 210 rotates, the water flows through the through hole 212, reducing resistance and energy consumption.

[0033] Further as Figure 2 , Figure 3 and Figure 4 As shown, it is worth noting that the threaded rod 2052 has the same axis as the heat-conducting coil 206, and the pitch of the threaded rod 2052 is the same as the distance between the upper and lower pipes of the heat-conducting coil 206.

[0034] When the threaded rod 2052 rotates, the cleaning plate 2054 can be driven to rotate through the connecting rod 2053. The cleaning plate 2054 can rotate along the heat conduction coil 206, so that the cleaning brush 2057 can remove the scale on the surface of the heat conduction coil 206 and ensure that the heat conduction coil 206 maintains a good cooling effect.

[0035] The precipitation treatment mechanism 4 is described in detail in the utility model patent publication number CN220918567U, and will not be elaborated on here.

[0036] The solution has the following working process: In use, firstly, external cooling water is introduced into the treatment tank 201 through the water inlet pipe 203 until the water completely fills the treatment tank 201. Then, high-temperature exhaust gas enters the heat conduction coil 206 through the air inlet pipe 1. The heat conduction coil 206 exchanges heat with the cooling water inside the treatment tank 201, and at the same time reduces the temperature of the exhaust gas inside the heat conduction coil 206, thus completing the cooling of the exhaust gas. The heated water is output through the drain pipe 204, and the cooled gas is introduced into the sedimentation treatment mechanism 4 through the connecting pipe 3 for further treatment.

[0037] When the exhaust gas is cooled by the heat-conducting coil 206, scale tends to accumulate on the heat-conducting coil 206 over time. The starting motor 2051 drives the threaded rod 2052 to rotate, which in turn drives the cleaning plate 2054 to rotate along the pipe of the heat-conducting coil 206 via the connecting rod 2053. The cleaning brush 2057 cleans the scale on the outer wall of the pipe of the heat-conducting coil 206, thereby improving the cooling effect and efficiency of the heat-conducting coil 206.

[0038] In summary: Through the intake pipe 1, cooling mechanism 2, and connecting pipe 3, high-temperature exhaust gas enters the interior of the heat-conducting coil 206 via the intake pipe 1. The heat-conducting coil 206 exchanges heat with the water inside the treatment tank 201, simultaneously reducing the temperature of the exhaust gas inside the heat-conducting coil 206, thus cooling the exhaust gas. The hot water can be discharged through the drain pipe 204 at the bottom, thereby recovering and utilizing the heat in the exhaust gas and avoiding energy waste. Over time, scale can easily accumulate on the heat-conducting coil 206 as the exhaust gas is cooled. The cleaning component 205 can clean the scale on the heat-conducting coil 206, ensuring that the cooling mechanism 2 maintains excellent cooling performance and achieves energy saving.

Claims

1. A furnace exhaust gas treatment device, comprising an inlet pipe (1), a cooling mechanism (2), a connecting pipe (3), a sedimentation treatment mechanism (4), and an exhaust pipe (5), characterized in that: The cooling mechanism (2) is located on the right side of the air inlet pipe (1), the connecting pipe (3) is located on the right side of the cooling mechanism (2), the sedimentation treatment mechanism (4) is located on the right side of the connecting pipe (3), and the exhaust pipe (5) is located on the right side of the sedimentation treatment mechanism (4). The cooling mechanism (2) consists of a processing box (201), an observation window (202), a water inlet pipe (203), a drain pipe (204), a cleaning component (205), and a heat-conducting coil (206). The processing box (201) has an installation groove on its front side. The observation window (202) is fixedly connected to the inside of the installation groove. The water inlet pipe (203) is fixedly connected to the top of the back plate of the processing box (201). The drain pipe (204) is fixedly connected to the bottom of the back plate of the processing box (201). The cleaning component (205) is located in the middle of the processing box (201). The heat-conducting coil (206) is fixedly connected to the inside of the processing box (201). The two ends of the heat-conducting coil (206) are respectively connected to the air inlet pipe (1) and the connecting pipe (3).

2. The smelting furnace exhaust gas treatment device according to claim 1, characterized in that: The observation window (202) is equipped with high-temperature resistant glass.

3. The smelting furnace exhaust gas treatment device according to claim 1, characterized in that: The cleaning assembly (205) consists of a motor (2051), a threaded rod (2052), a connecting rod (2053), a cleaning plate (2054), and a cleaning brush (2057). The motor (2051) is fixedly connected to the front of the processing box (201). The threaded rod (2052) is rotatably connected to the inside of the processing box (201), and the front end of the threaded rod (2052) is connected to the output end of the motor (2051). The connecting rod (2053) is threadedly connected to the outside of the threaded rod (2052).

4. The smelting furnace exhaust gas treatment device according to claim 3, characterized in that: The cleaning plate (2054) is fixedly connected to one end of the connecting rod (2053), and a circular through groove (2056) is provided inside the cleaning plate (2054). Cleaning brushes (2057) are uniformly fixedly connected inside the circular through groove (2056).

5. The smelting furnace exhaust gas treatment device according to claim 4, characterized in that: The size of the circular through groove (2056) is larger than the diameter of the heat-conducting coil (206), and the pipe of the heat-conducting coil (206) is arranged inside the circular through groove (2056). The connecting rod (2053) is evenly provided with through holes (2055).

6. The smelting furnace exhaust gas treatment device according to claim 5, characterized in that: The threaded rod (2052) has the same axis as the heat-conducting coil (206), and the pitch of the threaded rod (2052) is the same as the distance between the upper and lower pipes of the heat-conducting coil (206).

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