Energy-saving ton cylinder tunnel kiln structure for waste gas purification treatment

Abstract

The utility model discloses an energy-saving ton cylinder tunnel kiln structure for waste gas purification treatment, and particularly relates to the technical field of ceramic firing equipment, which comprises an air inlet pipe and a fuel pipe, a sealing disc, a sealing ring and a rotating roller with an oxygen content sensor at one end, an external handle and an angle scale are arranged in the air inlet pipe, and an operator rotates the handle according to oxygen content feedback. A fuel pipe of the fuel assembly communicates with an air inlet pipe through a communicating window, a baffle disc in the pipe is provided with a feeding window, a bottom driving piece is connected with a spiral plate, the spiral plate and an assembly ring form a spiral channel, and a stirring plate is matched, so that fuel is fully premixed with air before entering a combustion chamber; the premixed combustible mixed gas is fully combusted, flame and temperature are controllable, a stable high-temperature area can be accurately formed in the kiln, heat is concentrated to heat ton cylinders, heat loss is avoided, unit energy consumption is reduced, nitrogen oxide generation is reduced through premixed combustion, waste gas purification burden is relieved, and it is guaranteed that waste gas reaches the standard to be discharged.

Description

A ton-cylinder tunnel kiln structure for energy-saving waste gas purification treatment Technical Field

[0001] This utility model relates to the field of ceramic firing equipment technology, specifically to a ton-cylinder tunnel kiln structure for energy-saving waste gas purification. Background Technology

[0002] In many industrial sectors such as ceramics and building materials, tunnel kilns play a crucial role as a widely used continuous firing equipment. Among them, ton cylinders, as a type of large ceramic product, pose unique challenges to the performance of tunnel kilns due to their large size, thick walls, and high firing process requirements.

[0003] Under current technology, the combustion system of traditional tunnel kilns is inefficient. The mixing ratio of fuel and combustion air is not precise enough, often resulting in incomplete combustion. Traditional tunnel kiln burners use a relatively simple mixing method, achieving mixing of fuel and combustion air through a simple arrangement of fuel nozzles and air inlets. This method cannot guarantee that the fuel and air are fully and uniformly mixed before entering the combustion chamber, easily leading to localized excessively high or low fuel concentrations, thus causing incomplete combustion.

[0004] Uneven airflow distribution: Uneven airflow distribution inside the burner prevents fuel and combustion air from mixing in the ideal ratio during the flow process. Some air flows too fast in certain areas and too slow in others, leading to an imbalance in the fuel-air mixture ratio, affecting combustion efficiency, and resulting in the direct emission of incompletely burned fuel, wasting energy and causing environmental pollution. Therefore, we propose an energy-saving ton-cylinder tunnel kiln structure for waste gas purification to solve the above problems. Summary of the Invention

[0005] The present invention aims to solve the technical problem of substandard exhaust gas in the prior art.

[0006] Therefore, the technical solution adopted by this utility model is as follows:

[0007] An energy-saving tunnel kiln structure for waste gas purification includes an air inlet assembly and a fuel assembly. The air inlet assembly includes an air inlet pipe, and the fuel assembly includes a fuel pipe. A closed disc is built into the air inlet pipe. An oxygen content sensor is installed on the inner wall of the end of the air inlet pipe near the fuel pipe. A baffle is fixedly connected to the inner wall of the fuel pipe. A rotating roller is fixedly connected to the axis of the closed disc. A driving component is provided at the bottom of the baffle. Spiral plates are fixedly connected around the driving component. An assembly ring is fixedly connected to the inner wall of the fuel pipe. The assembly ring is sleeved on the surface of multiple spiral plates. Multiple spiral channels are formed between the driving component, the spiral plates, and the assembly ring. Multiple actuating plates are fixedly connected to the inner wall of the assembly ring.

[0008] Preferably, a connecting window is provided on one side of the fuel pipe, and the fuel pipe and the air inlet pipe are connected through the connecting window.

[0009] Preferably, a sealing ring is fitted around the perimeter of the enclosed disc, and the outer wall of the sealing ring is in contact with the inner wall of the air inlet pipe.

[0010] Preferably, the end of the rotating roller away from the closed disc extends through the wall of the air inlet pipe to the outside.

[0011] Preferably, a fixing frame is fixedly connected to the outer wall of the air inlet pipe, a handle is fixedly connected to one end of the rotating roller outside the air inlet pipe, and an angle scale is fixedly connected to the surface of the fixing frame.

[0012] Preferably, the surface of the baffle plate has multiple evenly distributed feeding windows.

[0013] Preferably, the spiral channel is connected to the fuel pipe through the feed window.

[0014] Preferably, the actuating plate is placed inside the spiral channel.

[0015] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0016] This utility model relates to a ton-cylinder tunnel kiln structure for energy-saving waste gas purification. Its air inlet assembly includes an air inlet pipe, a built-in closed disc and sealing ring, an oxygen content sensor at one end, and an externally connected rotating roller with a handle and angle scale. The operator adjusts the air intake by rotating the handle based on oxygen content feedback. The fuel assembly's fuel pipe connects to the air inlet pipe via a connecting window. A feed window is located on the baffle plate inside the pipe, and the bottom drive component connects to a spiral plate, forming a spiral channel with the assembly ring. This, along with a toggle plate, ensures that the fuel is fully premixed with air before entering the combustion chamber. A flow sensor inside the pipe coordinates and regulates the mixing ratio. The premixed combustible mixture burns completely, with controllable flame and temperature, precisely creating a stable high-temperature zone within the kiln. This concentrates heat on the ton-cylinder, preventing heat loss and reducing unit energy consumption. Premixed combustion reduces nitrogen oxide generation, lessening the burden on waste gas purification. Combined with desulfurization and dust removal devices, this ensures that waste gas emissions meet standards. A stable firing environment ensures uniform heating of the ton-cylinder, improving yield and quality stability. Attached Figure Description

[0017] Figure 1 is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 is a schematic diagram of the air inlet pipe structure of this utility model.

[0019] Figure 3 is a schematic diagram of the fuel pipe structure of this utility model.

[0020] Figure 4 is a schematic diagram of the internal structure of the fuel pipe of this utility model.

[0021] Figure 5 is a schematic diagram of the exploded structure of multiple parts of this utility model.

[0022] In the diagram: 1. Air intake assembly; 101. Air intake pipe; 102. Sealing disc; 103. Sealing ring; 104. Oxygen content sensor; 105. Rotating roller; 106. Fixing frame; 107. Handle; 108. Angle scale; 2. Fuel assembly; 201. Fuel pipe; 202. Connecting window; 203. Baffle; 204. Feed window; 205. Drive component; 206. Spiral plate; 207. Assembly ring; 208. Spiral channel; 209. Actuating plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example: As shown in Figures 1-5, this utility model provides an energy-saving tunnel kiln structure for waste gas purification, including an air inlet assembly 1 and a fuel assembly 2. The air inlet assembly 1 includes an air inlet pipe 101, and the fuel assembly 2 includes a fuel pipe 201. A connecting window 202 is provided on one side of the fuel pipe 201, and the fuel pipe 201 and the air inlet pipe 101 are connected through the connecting window 202. A sealing disc 102 is built into the air inlet pipe 101, and a sealing ring 103 is sleeved around the sealing disc 102. The outer ring wall of the sealing ring 103 is in contact with the inner wall of the air inlet pipe 101. An oxygen content sensor 104 is installed on the inner wall of the air intake pipe 101 near the fuel pipe 201. A rotating roller 105 is fixedly connected to the axis of the sealed disc 102. The end of the rotating roller 105 away from the sealed disc 102 extends through the wall of the air intake pipe 101 to the outside. A fixing bracket 106 is fixedly connected to the outer wall of the air intake pipe 101. A handle 107 is fixedly connected to the end of the rotating roller 105 outside the air intake pipe 101. An angle scale 108 is fixedly connected to the surface of the fixing bracket 106. As a key component, the air intake pipe 101 is responsible for introducing combustion air. Its built-in sealed disc 102, in conjunction with the sealing ring 103, allows for flexible adjustment of the air intake volume. The oxygen content sensor 104 monitors the oxygen content at the end of the air intake pipe 101 near the fuel pipe 201 in real time. This data is crucial for the precise control of the subsequent combustion process. When the operator turns the handle 107, driving the rotating roller 105 and thus rotating the sealed disc 102, the oxygen intake can be precisely controlled based on the feedback from the oxygen content sensor 104. For example, if the oxygen content is detected to be low, the gap between the closed plate 102 and the inner wall of the air inlet pipe 101 can be appropriately increased by turning the handle 107 to allow more air to enter.

[0025] Furthermore, a baffle 203 is fixedly connected to the inner wall of the fuel pipe 201. Multiple evenly distributed feed windows 204 are opened on the surface of the baffle 203. A driving component 205 is provided at the bottom of the baffle 203. Spiral plates 206 are fixedly connected around the driving component 205. An assembly ring 207 is fixedly connected to the inner wall of the fuel pipe 201. The assembly ring 207 is sleeved on the surface of the multiple spiral plates 206. Multiple spiral channels 208 are formed between the driving component 205, the spiral plates 206, and the assembly ring 207. Fuel pipe 201 is connected to feed window 204. Multiple actuating plates 209 are fixedly connected to the inner wall of assembly ring 207, and these plates are placed within spiral channels 208. A flow sensor is installed inside fuel pipe 201, which, in conjunction with air inlet pipe 101, transmits feedback signals to the central controller to dynamically adjust the mixing ratio of fuel and combustion air. A connecting window 202 on one side of fuel pipe 201 connects it to air inlet pipe 101, ensuring smooth airflow into fuel pipe 201 for mixing. Multiple feed windows 204 are provided on the baffle 203 on the inner wall of fuel pipe 201, through which fuel enters the subsequent mixing area. When the drive component 205 at the bottom of baffle 203 is in operation, the spiral plates 206 fixed around its perimeter cooperate with assembly ring 207 to form multiple spiral channels 208. Fuel flows within these spiral channels 208, and due to the special structure of the spiral plates 206, the fuel is continuously disturbed and dispersed. Meanwhile, the actuating plate 209 on the inner wall of the assembly ring 207 further enhances the mixing effect of fuel and air, so that the fuel is fully premixed in the specially designed mixing chamber before entering the combustion chamber, forming a uniform combustible mixture.

[0026] The premixed combustible mixture enters the combustion chamber for combustion. This combustion method results in more complete combustion due to the uniform mixing of fuel and air. The burner flame shape and temperature distribution are controllable. By precisely adjusting the air intake and fuel supply, a stable high-temperature zone can be formed within the kiln, accurately heating the ton cylinder. For example, according to the ton cylinder firing process requirements, the flame temperature and coverage area can be precisely controlled to ensure that heat is concentrated on the ton cylinder and to prevent heat loss to unnecessary areas. The exhaust gas generated during combustion in the kiln carries heat, and subsequently, through a dedicated heat exchange device or waste heat recovery system, some of the heat is transferred to the incoming air or other media requiring preheating, further improving thermal efficiency and achieving energy recycling.

[0027] Precise air intake and fuel control mechanisms ensure that fuel and combustion air are always in the optimal mixing ratio, resulting in complete combustion and reducing energy waste caused by incomplete combustion. Compared with traditional tunnel kilns, this significantly reduces fuel consumption. A stable high-temperature zone precisely heats the kiln cylinder, preventing disorderly heat diffusion and maximizing heat utilization for cylinder firing, minimizing heat loss and improving energy efficiency. This reduces energy consumption per unit product. Premixed combustion helps reduce nitrogen oxide formation, reducing pollutants at the source. The uniform combustible mixture combustion process is more stable, suppressing the large-scale generation of nitrogen oxides in a high-temperature, oxygen-rich environment. This reduces the pressure on subsequent exhaust gas purification. Combined with a comprehensive exhaust gas purification process, such as advanced desulfurization and dust removal devices, further purifying the exhaust gas discharged from the kiln ensures that emissions meet increasingly stringent environmental requirements.

[0028] The controllable flame shape and temperature distribution provide a stable and suitable firing environment for the ton cylinder, ensuring the uniformity of heating during the firing process, reducing product defects caused by temperature fluctuations and uneven heat distribution, and improving the yield and quality stability of the ton cylinder.

[0029] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A ton-cylinder tunnel kiln structure for energy-saving waste gas purification and treatment, characterized in that, The device includes an air intake assembly and a fuel assembly. The air intake assembly includes an air intake pipe, and the fuel assembly includes a fuel pipe. The air intake pipe has a built-in sealing disc. An oxygen content sensor is installed on the inner wall of the air intake pipe near the fuel pipe. A baffle is fixedly connected to the inner wall of the fuel pipe. A rotating roller is fixedly connected to the axis of the sealing disc. A driving component is provided at the bottom of the baffle. Spiral plates are fixedly connected around the driving component. An assembly ring is fixedly connected to the inner wall of the fuel pipe. The assembly ring is sleeved on the surface of multiple spiral plates. Multiple spiral channels are formed between the driving component, the spiral plates, and the assembly ring. Multiple actuating plates are fixedly connected to the inner wall of the assembly ring.

2. The ton-cylinder tunnel kiln structure for energy-saving waste gas purification and treatment according to claim 1, characterized in that, A connecting window is provided on one side of the fuel pipe, and the fuel pipe and the air inlet pipe are connected through the connecting window.

3. The ton-cylinder tunnel kiln structure for energy-saving waste gas purification and treatment according to claim 1, characterized in that, The sealed disk is surrounded by a sealing ring, and the outer ring wall of the sealing ring is in contact with the inner wall of the air inlet pipe.

4. The ton-cylinder tunnel kiln structure for energy-saving waste gas purification and treatment according to claim 1, characterized in that, The end of the rotating roller away from the closed disc extends through the wall of the air inlet pipe to the outside.

5. The ton-cylinder tunnel kiln structure for energy-saving waste gas purification and treatment according to claim 4, characterized in that, A fixed frame is fixedly connected to the outer wall of the air inlet pipe, a handle is fixedly connected to one end of the rotating roller outside the air inlet pipe, and an angle scale is fixedly connected to the surface of the fixed frame.

6. The ton-cylinder tunnel kiln structure for energy-saving waste gas purification and treatment according to claim 1, characterized in that, The surface of the baffle plate has multiple evenly distributed feeding windows.

7. The ton-cylinder tunnel kiln structure for energy-saving waste gas purification and treatment according to claim 1, characterized in that, The spiral channel is connected to the fuel pipe through the feed window.

8. The ton-cylinder tunnel kiln structure for energy-saving waste gas purification and treatment according to claim 1, characterized in that, The actuating plate is placed inside the spiral channel.

Images