Rotary oxidation device

Abstract

The utility model discloses a rotary oxidation device which comprises a bin body and a waste gas inlet pipe, a breather pipe is arranged in the center of the bin body and connected with a blowing air pipe, a heating area is arranged below the left side of the bin body, a cooling area is arranged below the right side of the bin body, a combustion chamber is arranged at the top of the bin body, a gas pipe and a combustion-supporting pipe are arranged on the left side of the combustion chamber, and the bottom of the cooling area is connected with a waste gas outlet pipe. An air uniformizing cavity is formed below the heating area, the left side of the air uniformizing cavity is connected with a waste gas inlet pipe, an air uniformizing plate is arranged at the upper end of the air uniformizing cavity, a plurality of air uniformizing holes are formed in the air uniformizing plate, and the diameters of the air uniformizing holes in the air uniformizing plate are gradually increased from left to right; a partition plate is fixed between the heating area and the cooling area in the bin body; the air uniformizing cavity is formed below the heating area, and the air uniformizing plate is arranged in the air uniformizing cavity, so that waste gas enters the air uniformizing cavity before entering the heating area, the waste gas can enter the heating area relatively uniformly, and the heating uniformity and heating effect of the waste gas are improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of oxidation devices, and in particular relates to a rotary oxidation device. Background Technology

[0002] A rotary RTO (Regenerative Thermal Oxidizer), also known as a rotary regenerative oxidizer, is a highly efficient waste gas treatment device, primarily used to treat volatile organic compounds (VOCs) waste gas. Its core principle is to oxidize combustible waste gas into corresponding oxides and water at high temperatures, thereby purifying the waste gas. In this process, the waste gas decomposition efficiency can reach 99.5%, and the heat recovery efficiency is as high as 95% or more.

[0003] Regarding rotary oxidation devices, a search reveals that a Chinese utility model patent with authorization announcement number CN112377931B discloses a rotary regenerative thermal oxidation device, such as... Figure 1 As shown, it mainly includes a chamber a, with a vent pipe b in the center of chamber a. The bottom of vent pipe b is connected to a purge air pipe c. The lower left half of chamber a is provided with a heating zone d, and the lower right half of chamber a is provided with a cooling zone e. The top of chamber a is a combustion chamber f. A ceramic layer g is provided inside chamber a below the combustion chamber. The combustion device is connected to a natural gas pipeline h and a combustion air pipeline k. The lower left side of chamber a is provided with an exhaust gas inlet pipe m connected to the heating zone, and the lower right side of chamber a is provided with an exhaust gas outlet pipe n.

[0004] In the actual implementation of existing rotary oxidation devices with similar technical solutions, there are areas that need improvement: when the exhaust gas enters the heating zone through the exhaust pipe, it is concentrated into one stream, resulting in insufficient diffusion and uneven heating. Utility Model Content

[0005] In view of the shortcomings and defects in the existing technology, the purpose of this utility model is to provide a rotary oxidation device that solves the problem that in the existing rotary oxidation device, when the exhaust gas enters the heating zone through the exhaust pipe, the exhaust gas is concentrated into one stream, so the exhaust gas does not diffuse sufficiently in the heating zone, which easily leads to uneven heating.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a rotary oxidation device, comprising a chamber and an exhaust gas inlet pipe, wherein an exhaust pipe is provided in the center of the chamber and is connected to a purge air pipe, a heating zone is provided on the lower left side of the chamber, a cooling zone is provided on the lower right side of the chamber, a combustion chamber is provided at the top of the chamber, a ceramic layer is provided below the combustion chamber inside the chamber, a gas pipe and a combustion-supporting pipe are provided on the left side of the combustion chamber, an exhaust gas outlet pipe is connected to the bottom of the cooling zone, an air distribution chamber is provided below the heating zone, the left side of the air distribution chamber is connected to the exhaust gas inlet pipe, an air distribution plate is provided at the upper end of the air distribution chamber, the air distribution plate is provided with a plurality of air distribution holes, the diameter of the air distribution holes gradually increases from left to right on the air distribution plate; a partition is fixed between the heating zone and the cooling zone inside the chamber, the top of the partition extends into the combustion chamber, and an insulation layer is provided on the partition.

[0007] As a further improvement of this utility model, a baffle is fixed at the bottom of the combustion chamber, the top of the baffle extends to the middle height of the combustion chamber, and the baffle is gradually tilted to the left from bottom to top.

[0008] As a further improvement of this utility model, the air distribution cavity is provided with multiple guide plates, which are arc-shaped and gradually tilt to the right from bottom to top.

[0009] As a further improvement of this utility model, an air distribution membrane is fixed above the air distribution plate.

[0010] As a further improvement of this utility model, a fan is provided near the left side of the air distribution cavity.

[0011] As a further improvement of this utility model, a filter membrane is provided on the chamber body at the exhaust gas inlet pipe.

[0012] Compared with the prior art, this utility model has the following advantages:

[0013] 1. By setting up an air distribution chamber below the heating zone, which is connected to the exhaust gas inlet pipe, and installing an air distribution plate inside the air distribution chamber, the exhaust gas enters the air distribution chamber before entering the heating zone. Under the guidance of the air distribution plate, the exhaust gas can enter the heating zone relatively evenly, thereby improving the heating uniformity and heating effect of the exhaust gas. In addition, the diameter of the air distribution holes on the air distribution plate gradually increases from left to right, so that the position far away from the exhaust gas inlet can allow the exhaust gas to pass through better than the position closer to the exhaust gas inlet, increasing the uniformity of the exhaust gas entering the heating zone.

[0014] In addition, by installing partitions inside the chamber, the heating zone on the left and the cooling zone on the right can be further isolated to prevent their temperatures from affecting each other.

[0015] 2. By installing a baffle at the bottom of the combustion chamber, the gas entering the combustion chamber from the left can be prevented from flowing to the right immediately, which facilitates the gas entering the combustion chamber to flow to the left and towards the combustion port and upward, thereby improving the uniformity of exhaust gas combustion.

[0016] 3. By installing a guide plate inside the air distribution chamber, the gas gradually and slowly flows to the right and enters the heating zone from the upper air distribution plate, further improving the uniformity of the gas entering the heating zone.

[0017] 4. By installing a fan on the left side of the air distribution chamber, the gas that just enters the air distribution chamber can be dispersed so that it can enter the heating zone evenly.

[0018] 5. By installing a filter membrane at the exhaust gas inlet pipe on the silo body, impurities in the exhaust gas can be physically filtered. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of the existing technology;

[0021] Figure 2 This is a schematic diagram of the structure of this utility model;

[0022] Figure 3 for Figure 2 Enlarged view at point A;

[0023] In the diagram: 1. Chamber; 2. Exhaust gas inlet pipe; 3. Ventilation pipe; 4. Purge air pipe; 5. Heating zone; 6. Cooling zone; 7. Combustion chamber; 8. Ceramic layer; 9. Gas pipe; 10. Combustion aid pipe; 11. Exhaust gas outlet pipe; 12. Air distribution chamber; 13. Air distribution plate; 14. Air distribution hole; 15. Baffle; 16. Deflector; 17. Guide plate; 18. Filter membrane. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 2-3 The present invention will be described in further detail below. For clarity, only the structures relevant to the inventive features of the present invention are shown in the figures.

[0025] For ease of description, the coordinate system is defined as follows: Figure 1 As shown, the left and right directions are horizontal, the front and back directions are vertical, and the up and down directions are vertical.

[0026] This utility model discloses a rotary oxidation apparatus. (Refer to...) Figure 2 and Figure 3A rotary oxidation device includes a chamber 1 and a waste gas inlet pipe 2. A ventilation pipe 3 is provided in the center of the chamber 1, which is connected to a purge air pipe 4. A heating zone 5 is fixed on the lower left side of the chamber 1, and a cooling zone 6 is fixed on the lower right side of the chamber 1. A combustion chamber 7 is provided at the top of the chamber 1. A ceramic layer 8 is provided inside the chamber 1 below the combustion chamber 7. A gas pipe 9 and a combustion-supporting pipe 10 are provided on the left side of the combustion chamber 7. The bottom of the cooling zone 6 is connected to a waste gas outlet pipe 11. For convenience, only the main components inside the chamber 1 are listed. The arrangement of the above-mentioned components inside the chamber 1 of the oxidation device, as well as the arrangement of components not listed in this embodiment, and the technical principles are the same as those of the prior art. For reference, see the patent with patent number CN112377931B, etc.

[0027] In this embodiment, an improvement is made in that a uniform air distribution chamber 12 is fixed below the heating zone 5. The uniform air distribution chamber 12 can be composed of a shell with an open top. The left side of the uniform air distribution chamber 12 is connected to the exhaust gas inlet pipe 2. In addition, a filter membrane 18 is fixed on the chamber body 1 at the exhaust gas inlet pipe 2. This allows for physical filtration of impurities in the exhaust gas. A uniform air distribution plate 13 is fixed at the upper end of the uniform air distribution chamber 12. The uniform air distribution plate 13 has multiple uniform air distribution holes 14, and the diameter of the holes 14 gradually increases from left to right on the uniform air distribution plate 13. Furthermore, multiple guide plates 17 are fixed inside the uniform air distribution chamber 12. The guide plates 17 are arc-shaped and gradually tilt to the right from bottom to top, causing the gas to flow slowly to the right and enter the heating zone 5 from the upper uniform air distribution plate 13, further improving the uniformity of the gas entering the heating zone 5. In addition, a uniform air distribution membrane is fixed above the uniform air distribution plate 13.

[0028] In addition, a rotatable fan 19 is fixed inside the air distribution chamber 12 near the left side, which facilitates the dispersion of the gas that has just entered the air distribution chamber 12 so that it can enter the heating zone 5 evenly.

[0029] A partition 15 is fixed between the heating zone 5 and the cooling zone 6 inside the chamber 1. The top of the partition 15 extends into the combustion chamber 7. An insulation layer is fixed on the partition 15. The insulation layer can be made of heat-insulating and flame-retardant materials, such as glass wool or polyurethane. The partition 15 can further isolate the left heating zone 5 and the right cooling zone 6 to prevent their temperatures from affecting each other.

[0030] A baffle 16 is fixed at the bottom of the combustion chamber 7. The top of the baffle 16 extends to the middle of the combustion chamber 7. The baffle 16 is gradually tilted to the left from bottom to top. When the baffle 16 is set, it should avoid contact with the vent pipe 3. It can prevent the gas entering the combustion chamber 7 from the left from flowing to the right immediately, so as to facilitate the gas that has just entered the combustion chamber 7 to flow to the left and closer to the combustion port and upward, thereby improving the uniformity of exhaust gas combustion.

[0031] This invention features a uniform air distribution chamber 12 located below the heating zone 5, connected to the exhaust gas inlet pipe 2. A uniform air distribution plate 13 is installed inside the chamber 12. Before the exhaust gas enters the heating zone 5, it first enters the uniform air distribution chamber 12. After entering the chamber 12, the exhaust gas, aided by the flow diffusion of the fan 19 and guided by the uniform air distribution plate 13, enters the heating zone 5 relatively evenly, thereby improving the heating uniformity and heating effect. Furthermore, the diameter of the uniform air distribution holes 14 on the uniform air distribution plate 13 gradually increases from left to right, allowing the exhaust gas to pass through more easily at locations farther from the exhaust gas inlet than at locations closer to the inlet, thus increasing the uniformity of the exhaust gas entering the heating zone 5.

[0032] 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 mechanical connection or an electrical 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. It should be understood that the specific embodiments described herein are only for understanding this utility model and are not intended to limit this utility model. All other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

Claims

1. A rotary oxidation device, comprising a chamber and a waste gas inlet pipe, wherein a vent pipe is provided in the center of the chamber and connected to a purge air pipe, a heating zone is provided on the lower left side of the chamber, a cooling zone is provided on the lower right side of the chamber, a combustion chamber is provided at the top of the chamber, a ceramic layer is provided inside the chamber below the combustion chamber, a gas combustion pipe and a combustion-supporting pipe are provided on the left side of the combustion chamber, and a waste gas outlet pipe is connected to the bottom of the cooling zone, characterized in that: Below the heating zone is a uniform air chamber, the left side of which is connected to the exhaust gas inlet pipe. The upper end of the uniform air chamber is provided with a uniform air plate, which has multiple uniform air holes. The diameter of the uniform air holes gradually increases from left to right on the uniform air plate. Inside the chamber, a partition is fixed between the heating zone and the cooling zone. The top of the partition extends into the combustion chamber, and the partition is provided with a heat insulation layer.

2. A rotating oxidation device according to claim 1, characterized in that: A baffle is fixed at the bottom of the combustion chamber, with the top of the baffle extending to the middle of the combustion chamber. The baffle is gradually tilted to the left from bottom to top.

3. The rotary oxidation apparatus according to claim 1, characterized in that: The air distribution cavity is equipped with multiple guide plates, which are arc-shaped and gradually tilt to the right from bottom to top.

4. A rotating oxidation apparatus according to claim 1, wherein: An air distribution membrane is fixed above the air distribution plate.

5. A rotating oxidation apparatus according to claim 1, wherein: A fan is located near the left side of the air distribution cavity.

6. A rotating oxidation apparatus according to claim 1, wherein: The chamber is equipped with a filter membrane at the exhaust gas inlet pipe.

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