Novel waste gas emission device of regenerative furnace

Abstract

The novel waste gas emission device comprises a bottom plate, a purification box and a heat exchange box are arranged on the bottom plate, the upper end of the purification box is communicated with a gas inlet pipe, an activated carbon cotton filter plate, an electrostatic adsorption filter plate and a metal net filter plate are arranged on the inner wall of the purification box, a cavity is formed in the side wall of the purification box, and a gas inlet pipe is arranged in the cavity. A cavity is formed in the bottom plate, an insertion rod is slidably arranged in the cavity, a handle is fixedly arranged outside the insertion rod, a spring sleeves the insertion rod, a limiting plate fixedly sleeves the insertion rod, an exhaust fan is arranged at the upper end of the bottom plate, and one end of the exhaust fan communicates with a purification box through an air inlet pipe. By the adoption of the technical scheme, the novel waste gas discharging device of the heat storage furnace can recycle heat and water vapor in waste gas discharged by the heat storage furnace, energy loss in the waste gas is fully reduced, and the purification effect on the waste gas of the heat storage furnace can be completed in a multi-layer mode.

Description

Technical Field

[0001] This utility model relates to the field of waste gas emission technology, and in particular to a novel waste gas emission device for a regenerative furnace. Background Technology

[0002] In the initial pyrometallurgical refining of lead, a regenerator is used to smelt the lead in the smelting pot at high temperatures. The fuel required for the smelting process is natural gas. After ventilation and ignition, smoke, waste gas, and water vapor are generated in the regenerator and smelting pot. Common regenerator waste gas treatment devices use filtration devices to purify the waste gas. This method has a single filtration effect and cannot fully purify the waste gas. With prolonged use, the filtration device is prone to clogging, requiring workers to use external tools to disassemble the filtration device, which is time-consuming and labor-intensive. Furthermore, the heat and water vapor in the waste gas are directly emitted, which easily leads to resource waste. To ensure the separation and treatment of water vapor generated in the regenerator and smoke and waste gas generated in the smelting pot, we propose a new type of regenerator waste gas emission device. Summary of the Invention

[0003] To address the aforementioned problems, this utility model provides a novel exhaust gas emission device for a regenerative thermal furnace, thereby resolving the issues raised in the background section.

[0004] This utility model discloses a novel exhaust gas emission device for a regenerative thermal radiator, comprising a base plate, on which a purification chamber and a heat exchange chamber are mounted. The upper end of the purification chamber is connected to an air inlet pipe. The inner wall of the purification chamber is provided with an activated carbon cotton filter plate, an electrostatic adsorption filter plate, and a metal mesh filter plate. A cavity is opened in the side wall of the purification chamber, and an insert rod is slidably mounted in the cavity. A handle is fixedly mounted on the outside of the insert rod, and a spring is sleeved on the outside of the insert rod. A limiting plate is fixedly mounted on the outside of the insert rod. An exhaust fan is mounted on the upper end of the base plate. One end of the exhaust fan is connected to the purification chamber through an air inlet pipe, and the other end is connected to the heat exchange chamber through an air inlet pipe. A water tank is provided inside the heat exchange chamber, and the upper and lower ends of the water tank are connected to water pipes controlled by valves. A heat exchange pipe is wound around the outside of the water tank.

[0005] In the above scheme, the heat exchange box is provided with a support leg at the lower end, and the support leg of the heat exchange box is set on the base plate.

[0006] In the above scheme, the metal mesh filter plate is located at the upper end of the activated carbon cotton filter plate, and the activated carbon cotton filter plate is located at the upper end of the electrostatic adsorption filter plate.

[0007] In the above scheme, one end of the spring is connected to the side wall of the limiting plate, and the other end of the spring is connected to the side wall of the cavity.

[0008] In the above scheme, the outer wall of the purification box is fixed by a movable plate with bolts.

[0009] In the above scheme, the activated carbon cotton filter plate, the electrostatic adsorption filter plate and the metal mesh filter plate have insertion holes on both sides, and insertion rods are movably connected in the insertion holes.

[0010] In the above scheme, the heat exchange pipe is fixedly installed on the outer wall of the water tank in an S-shape. The upper end of the heat exchange pipe is connected to the air inlet pipe, the other end of the heat exchange pipe is connected to the exhaust pipe, and the lower end of the exhaust pipe is provided with a water guide pipe.

[0011] The advantages and beneficial effects of this utility model are as follows: This utility model provides a novel exhaust gas emission device for a thermal regenerator. Through a heat exchange box, water tank, water pipe, heat exchange pipeline, exhaust pipe, and water guide pipe, it can recover and reuse the heat and water vapor in the exhaust gas emitted by the thermal regenerator, thus significantly reducing energy loss in the exhaust gas. Through a purification box, activated carbon cotton filter plate, electrostatic adsorption filter plate, metal mesh filter plate, and exhaust fan, it can achieve a multi-layer purification effect on the exhaust gas of the thermal regenerator, preventing harmful substances mixed in the exhaust gas from being directly discharged outdoors and causing environmental pollution. Through the cavity, insertion rod, handle, spring, limiting plate, and insertion hole, it is convenient to replace the activated carbon cotton filter plate, electrostatic adsorption filter plate, and metal mesh filter plate. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of part A of the present invention.

[0015] Figure 3 This is a schematic diagram of the purification box structure of this utility model.

[0016] In the diagram: 1. Base plate; 11. Heat exchange box; 12. Water tank; 13. Water pipe; 14. Heat exchange pipe; 15. Exhaust pipe; 16. Water guide pipe; 17. Support leg; 2. Purification box; 21. Activated carbon cotton filter plate; 22. Electrostatic adsorption filter plate; 23. Exhaust fan; 24. Air inlet pipe; 25. Movable plate; 26. Metal mesh filter plate; 3. Cavity; 31. Insert rod; 32. Handle; 33. Spring; 34. Limiting plate; 35. Insertion hole. Detailed Implementation

[0017] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0018] like Figure 1-3 As shown, this utility model is a novel exhaust gas emission device for a regenerative thermal radiator, comprising a base plate 1, on which a purification box 2 and a heat exchange box 11 are mounted. The upper end of the purification box 2 is connected to an air inlet pipe 24. The inner wall of the purification box 2 is provided with an activated carbon cotton filter plate 21, an electrostatic adsorption filter plate 22, and a metal mesh filter plate 26. A cavity 3 is formed in the side wall of the purification box 2, and a rod 31 is slidably mounted within the cavity 3. A handle 32 is fixedly mounted on the outside of the rod 31, a spring 33 is sleeved on the outside of the rod 31, and a limiting plate 34 is fixedly sleeved on the outside of the rod 31. An exhaust fan 23 is mounted on the upper end of the base plate 1, and one end of the exhaust fan 23 is connected to the purification box 2 through the air inlet pipe 24. The exhaust gas emitted from the regenerator is introduced into the purification box 2 through the air inlet pipe 24. By turning on the exhaust fan 23, the exhaust fan 23 can draw out the exhaust gas, which can accelerate the flow rate of the exhaust gas in the purification box 2 and improve the filtration and purification efficiency. The activated carbon cotton filter plate 21, the electrostatic adsorption filter plate 22 and the metal mesh filter plate 26 have insertion holes 35 on both sides. Insert rods 31 are movably connected in the insertion holes 35. The exhaust gas passes through the metal mesh filter plate 26, the activated carbon cotton filter plate 21 and the electrostatic adsorption filter plate 22 respectively. The metal mesh filter plate 26 has a mesh of a certain size, which can effectively intercept larger dust particles, debris and other impurities in the exhaust gas. Generally, it can efficiently intercept large particulate impurities with a diameter of 10 micrometers or larger, preventing these impurities from passing through the filter plate and thus separating them from the exhaust gas, playing a preliminary role in purifying the exhaust gas. The activated carbon cotton filter plate 21 has a rich microporous structure and a huge specific surface area. Through physical adsorption and chemical adsorption, it effectively adsorbs various gaseous pollutants such as sulfur dioxide, nitrogen oxides, benzene, and formaldehyde, thereby purifying the exhaust gas and reducing the harm of harmful gases to the environment and human body. The electrostatic adsorption filter plate 22 uses the force of electrostatic field on charged particles to capture particulate pollutants in the exhaust gas. It has extremely high removal efficiency for fine particles, such as PM2.5 and even smaller nano-sized particles, effectively reducing the content of inhalable particulate matter in the exhaust gas and making the emitted exhaust gas cleaner.

[0019] When replacing the three types of filter plates, the movable plate 25, which is fixed to the outer wall of the purification box 2 by bolts, is removed from one side of the purification box 2 by unscrewing the external bolts. By pulling the handle 32 outwards, one end of the spring 33 is connected to the side wall of the limiting plate 34, and the other end is connected to the side wall of the cavity 3. The handle 32 causes the limiting plate 34 to compress the spring 33. Insertion holes 35 are opened on both sides of the activated carbon cotton filter plate 21 and the electrostatic adsorption filter plate 22. Insertion rods 31 are slidably connected within the insertion holes 35. Hand 32 disengages the insertion rod 31 from the insertion holes 35 of the three types of filter plates, thereby removing the three types of filter plates from the purification box 2. When installing, place the three types of filter plates in the purification box 2, release the handle 32, and the spring 33 should return to its original state. The spring 33 can push the limiting plate 34 to move inward, and the insertion rod 31 is reinserted into the insertion hole 35. Install the movable plate 25 to lock the three types of filter plates, thereby facilitating the replacement of the activated carbon cotton filter plate 21, the electrostatic adsorption filter plate 22, and the metal mesh filter plate 26, making it easier for workers to operate.

[0020] Its other end is connected to the heat exchange box 11 through the air inlet pipe 24. The heat exchange box 11 is equipped with a water tank 12. The upper and lower ends of the water tank 12 are connected to water pipes 13 controlled by valves. A heat exchange pipe 14 is wound around the outside of the water tank 12. The heat exchange pipe 14 is wound and fixedly installed on the outer wall of the water tank 12 in an S-shape. The upper end of the heat exchange pipe 14 is connected to the air inlet pipe 24, and the other end of the heat exchange pipe 14 is connected to the exhaust pipe 15. A water guide pipe 16 is provided at the lower end of the exhaust pipe 15. After the purified exhaust gas is introduced into the heat exchange box 11 by the exhaust fan 23, cold water is injected through the water pipe 13 at the upper end of the water tank 12. The valve of the water pipe 13 at the lower end of the water tank 12 is closed. When the water tank 12 is full of cold water, the exhaust gas flows out from the heat exchange pipe 14. The heat from the exhaust gas enters through the heat exchange pipe 14, which heats the cold water in the water tank 12. This allows the heat carried in the exhaust gas from the regenerator to be absorbed and reused, preventing the exhaust gas from being directly discharged outdoors and causing heat loss. Furthermore, because the temperature inside the water tank 12 is too low, the water vapor carried in the exhaust gas in the heat exchange pipe 14 condenses into water droplets, which then flow downwards within the heat exchange pipe 14. The purified and heat-absorbed exhaust gas is then discharged directly from the exhaust pipe 15. The condensed water vapor is discharged through the water guide pipe 16 connected to the lower end of the exhaust pipe 15, allowing for the collection of water and further recycling of the water vapor in the exhaust gas, thus significantly reducing energy loss in the exhaust gas.

[0021] In the above scheme, the heat exchange box 11 is provided with a support leg 17 at the lower end. The support leg 17 of the heat exchange box 11 is set on the base plate 1. The support leg 17 supports the heat exchange box 11, which makes it easier to raise the water pipe 13 and the water guide pipe 16.

[0022] Working principle:

[0023] This novel exhaust gas emission device for regenerative thermal radiators works by introducing the exhaust gas from the radiator into the purification chamber 2 through the inlet pipe 24. By turning on the exhaust fan 23, the exhaust gas is drawn in and passes through a metal mesh filter plate 26, an activated carbon cotton filter plate 21, and an electrostatic adsorption filter plate 22, achieving multi-layer purification of the exhaust gas. This prevents harmful substances in the exhaust gas from being directly emitted outdoors, causing environmental pollution. Once purified, the exhaust gas is introduced through the exhaust fan 23 into the heat exchanger. After entering the chamber 11, the heat in the exhaust gas passes through the heat exchange pipe 14, which can heat the cold water in the water tank 12, thereby absorbing and reusing the heat carried in the exhaust gas emitted by the regenerator. The water vapor carried in the exhaust gas in the heat exchange pipe 14 condenses into water droplets, which flow downwards in the heat exchange pipe 14. The condensed water vapor is discharged from the water guide pipe 16 connected to the lower end of the exhaust pipe 15, and the water is collected in a concentrated manner, which can further recover and reuse the water vapor in the exhaust gas.

[0024] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel exhaust gas emission device for a regenerative thermal furnace, comprising a base plate (1), characterized in that, The base plate (1) is provided with a purification box (2) and a heat exchange box (11). The upper end of the purification box (2) is connected to the air inlet pipe (24). The inner wall of the purification box (2) is provided with an activated carbon cotton filter plate (21), an electrostatic adsorption filter plate (22) and a metal mesh filter plate (26). A cavity (3) is opened on the side wall of the purification box (2). A rod (31) is slidably provided in the cavity (3). A handle (32) is fixedly provided on the outside of the rod (31). A spring is sleeved on the outside of the rod (31). (33) A limiting plate (34) is fixedly sleeved on the outside of the insertion rod (31). An exhaust fan (23) is provided on the upper end of the base plate (1). One end of the exhaust fan (23) is connected to the purification box (2) through the air inlet pipe (24), and the other end is connected to the heat exchange box (11) through the air inlet pipe (24). A water tank (12) is provided inside the heat exchange box (11). The upper and lower ends of the water tank (12) are connected to the water pipe (13) controlled by the valve. A heat exchange pipe (14) is wrapped around the outside of the water tank (12).

2. The novel waste gas emission device for a regenerative thermal furnace according to claim 1, characterized in that, The heat exchange box (11) is provided with a support leg (17) at the lower end, and the support leg (17) of the heat exchange box (11) is set on the base plate (1).

3. The novel exhaust gas emission device for a regenerative thermal furnace according to claim 1, characterized in that, The metal mesh filter plate (26) is located at the upper end of the activated carbon cotton filter plate (21), and the activated carbon cotton filter plate (21) is located at the upper end of the electrostatic adsorption filter plate (22).

4. The novel exhaust gas emission device for a regenerative thermal furnace according to claim 1, characterized in that, One end of the spring (33) is connected to the side wall of the limiting plate (34), and the other end of the spring (33) is connected to the side wall of the cavity (3).

5. The novel exhaust gas emission device for a regenerative thermal furnace according to claim 1, characterized in that, The outer wall of the purification box (2) is fixed with a movable plate (25) by bolts.

6. The novel exhaust gas emission device for a regenerative thermal furnace according to claim 1, characterized in that, The activated carbon cotton filter plate (21), the electrostatic adsorption filter plate (22) and the metal mesh filter plate (26) have insertion holes (35) on both sides, and insertion rods (31) are movably connected in the insertion holes (35).

7. The novel exhaust gas emission device for a regenerative thermal furnace according to claim 1, characterized in that, The heat exchange pipe (14) is fixedly wound in an S-shape on the outer wall of the water tank (12). The upper end of the heat exchange pipe (14) is connected to the air inlet pipe (24), and the other end of the heat exchange pipe (14) is connected to the exhaust pipe (15). The lower end of the exhaust pipe (15) is provided with a water guide pipe (16).

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