A graphite quench tower for cooling high temperature incineration off-gas

Abstract

This utility model discloses a graphite quench tower for cooling high-temperature combustion exhaust gas, comprising a graphite cooling tower and lifting lugs. The lifting lugs are uniformly fixed to the outer side of the graphite cooling tower, and a pump pipe is connected to the bottom of the outer side of the graphite cooling tower. A manhole is provided at the bottom of the outer side of the graphite cooling tower, and an air inlet is connected to one side of the bottom of the graphite cooling tower. This utility model provides a large contact area between the exhaust gas and the cooling medium by correspondingly setting two layers of packing material in the graphite cooling tower. The two layers of packing material further increase the contact time and contact area between the exhaust gas and the cooling medium in the graphite cooling tower, thereby enhancing the cooling effect and effectively adsorbing pollutants. The packing material layers are supported by a packing grid to prevent the packing material from falling, ensuring that the structure and shape of the packing material layer remain unchanged, thus maintaining normal cooling and purification functions.

Description

Technical Field

[0001] This utility model relates to the field of garden equipment technology, and in particular to a graphite quench tower for cooling high-temperature combustion exhaust gas. Background Technology

[0002] In today's rapidly developing industrial landscape, high-temperature incineration technology is widely used in numerous fields, including waste incineration, chemical waste treatment, and hazardous waste disposal. This technology uses a high-temperature environment to oxidize and decompose various wastes, achieving volume reduction, harmlessness, and resource recovery, effectively reducing the direct pollution of the environment by waste. However, high-temperature incineration processes generate large amounts of high-temperature exhaust gases, which typically reach temperatures of 800℃-1200℃ and have complex compositions, including acidic gases (such as HCl, SO2, etc.), heavy metal particles, dioxins, and other harmful substances. A dry-process harmless solid waste incinerator exhaust gas quenching tower (announcement number CN202909564U) includes a bag filter and a reagent supply device. The ash hopper at the lower end of the bag filter is shaped like an inverted frustum. An inlet pipe connected to the incinerator exhaust gas pipeline is connected to the bag filter through the bottom of the ash hopper. A dust collection port is located at the bottom of the ash hopper, and an outlet pipe is connected to the side wall at the top of the bag filter. The reagent supply device consists of a quicklime storage tank and a reaction aid storage tank. This invention has a high efficiency in adsorbing harmful substances. The quicklime and reaction aids are sprayed onto the surface of the cloth bag along with the airflow to form a mixed agent membrane. During the filtration process of the incinerator exhaust gas through the mixed agent membrane, not only can acidic gases such as hydrogen chloride and sulfur dioxide be adsorbed, but also heavy metals and dioxins are filtered and adsorbed by the mixed agent membrane.

[0003] The existing technology described above has a single function. The packing is one of the key factors affecting heat exchange efficiency. The packing accumulates in the tower and generates a certain weight. Combined with the impact force of the exhaust gas and cooling medium, it will put long-term pressure on the packing support. If the strength of the support structure is insufficient, problems such as deformation and breakage may occur during long-term operation, causing the packing to fall or collapse, affecting the normal operation of the quench tower. Therefore, corresponding improvements are needed. Utility Model Content

[0004] The purpose of this invention is to provide a graphite quench tower for cooling high-temperature combustion exhaust gas, in order to solve the problem mentioned in the background art that the internal support packing of existing graphite quench towers for cooling high-temperature combustion exhaust gas has poor support effect, which affects the exhaust gas treatment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a graphite quench tower for cooling high-temperature combustion exhaust gas, comprising a graphite cooling tower and lifting lugs, wherein the lifting lugs are uniformly fixed on the outside of the graphite cooling tower, and a pump pipe is connected to the bottom of the outside of the graphite cooling tower.

[0006] A manhole is provided at the bottom outer side of the graphite cooling tower. An air inlet is connected to one side of the bottom of the graphite cooling tower. A discharge port is provided at one end of the outer side of the graphite cooling tower. Packing inlet pipes are provided at both ends of the outer side of the graphite cooling tower. A connecting air pipe is connected to the top of the graphite cooling tower, and a flexible connecting pipe is connected to the top of the connecting air pipe. An air outlet pipe is connected to the top of the flexible connecting pipe, and a liquid inlet pipe is provided outside the air outlet pipe. Packing support assemblies are provided on both sides of the interior of the graphite cooling tower, and each packing support assembly is filled with a packing layer.

[0007] Preferably, the graphite cooling tower includes an anti-corrosion layer, an anti-seepage layer, a support layer, and a high-temperature resistant layer, wherein the anti-corrosion layer is the outermost layer, the high-temperature resistant layer is the innermost layer, and an anti-seepage layer and a support layer are disposed between the anti-corrosion layer and the high-temperature resistant layer.

[0008] Preferably, the anti-corrosion layer is made of stainless steel, the anti-seepage layer is made of butyl rubber, the support layer is made of carbon steel, and the high-temperature resistant layer is made of alumina ceramic.

[0009] Preferably, the packing support assembly includes a packing grid disposed inside the graphite cooling tower, and four sets of support frames are evenly fixed to the top of the packing grid, each set having four supports, and each set of support frames is distributed in a ring on the packing grid.

[0010] Preferably, both ends of the outer side of the support frame are connected to a fixing frame and a connecting frame, and one end of the support frame is connected to a support ring.

[0011] Preferably, the packing grid is uniformly connected with supporting mesh plates inside, and the supporting mesh plates are arranged in three layers in the packing grid, with equal spacing between each layer.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the graphite quench tower for cooling high-temperature combustion exhaust gas not only has a good cooling effect and a good packing load-bearing effect, but also has good corrosion resistance and high temperature resistance of the tower body;

[0013] By setting two layers of packing material in the graphite cooling tower, a huge contact area is provided for the exhaust gas and the cooling medium. The two layers of packing material further increase the contact time and contact area between the exhaust gas and the cooling medium in the graphite cooling tower, thereby enhancing the cooling effect and effectively adsorbing pollutants.

[0014] The packing layer is supported by a packing grid to prevent the packing from falling and to ensure that the structure and shape of the packing layer remain unchanged, thereby maintaining normal cooling and purification functions. The packing grid is supported by multiple sets of support frames and support rings, along with fixed frames and connecting frames, to enhance the structural strength of the packing grid and better withstand the weight of the packing layer and the impact of airflow. In addition, multiple layers of support mesh plates are set in the packing grid to further improve the load-bearing capacity and effect of the packing grid.

[0015] A graphite cooling tower consists of a corrosion-resistant layer, a seepage-proof layer, a support layer, and a high-temperature resistant layer, forming a multi-layer structure. The high-temperature resistant layer is the innermost layer, made of alumina ceramic, which can remain stable at higher temperatures, giving the graphite cooling tower good thermal stability. The corrosion-resistant layer is made of stainless steel, which has good corrosion resistance and oxidation resistance, improving the durability of the graphite cooling tower. Attached Figure Description

[0016] 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0018] Figure 2 This is a top view of the structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the graphite cooling tower structure of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the filler support assembly of this utility model;

[0021] Figure 5 This is a schematic diagram of the main structure of the filler support assembly of this utility model;

[0022] Figure 6 This is a cross-sectional three-dimensional structural diagram of the filler support assembly of this utility model.

[0023] The following are the annotations in the diagram: 1. Air outlet pipe; 2. Liquid inlet pipe; 3. Graphite cooling tower; 301. Anti-corrosion layer; 302. Anti-seepage layer; 303. Support layer; 304. High temperature resistant layer; 4. Flexible connecting pipe; 5. Connecting air pipe; 6. Lifting lug; 7. Packing layer; 8. Packing grid; 801. Support frame; 802. Fixed frame; 803. Connecting frame; 804. Support ring; 9. Packing inlet pipe; 10. Discharge port; 11. Pump connection pipe; 12. Air inlet; 13. Manhole; 14. Support mesh plate. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] Please see Figure 1-5 The present invention provides the following technical solution:

[0026] Example 1

[0027] To address the issue of poor corrosion resistance in existing graphite quench towers used for cooling high-temperature combustion exhaust gases, the following technical solution is proposed. Please refer to the following for details. Figure 1 , Figure 2 , Figure 3 A graphite quench tower for cooling high-temperature combustion exhaust gas includes a graphite cooling tower 3 and lifting lugs 6. The lifting lugs 6 are evenly fixed on the outside of the graphite cooling tower 3. A pump pipe 11 is connected to the bottom of the outside of the graphite cooling tower 3. A manhole 13 is provided at the bottom of the outside of the graphite cooling tower 3. An air inlet 12 is connected to one side of the bottom of the graphite cooling tower 3. A discharge port 10 is provided at one end of the outside of the graphite cooling tower 3. Packing feed pipes 9 are provided at both ends of the outside of the graphite cooling tower 3. A connecting air pipe 5 is connected to the top of the graphite cooling tower 3. A flexible connecting pipe 4 is connected to the top of the connecting air pipe 5. An air outlet pipe 1 is connected to the top of the flexible connecting pipe 4. A liquid inlet pipe 2 is provided on the outside of the air outlet pipe 1.

[0028] In one embodiment, during use, the air inlet 12 is connected to an external air pipe to inject the high-temperature combustion exhaust gas into the graphite cooling tower 3. Then, the pump pipe 11 is connected to an external water pump to spray liquid into the graphite cooling tower 3 to achieve spray cooling. The packing layer 7 set in the graphite cooling tower 3 is used to adsorb harmful substances in the exhaust gas.

[0029] The graphite cooling tower 3 includes an anti-corrosion layer 301, an anti-seepage layer 302, a support layer 303, and a high-temperature resistant layer 304. The anti-corrosion layer 301 is the outermost layer, and the high-temperature resistant layer 304 is the innermost layer. The anti-seepage layer 302 and the support layer 303 are arranged between the anti-corrosion layer 301 and the high-temperature resistant layer 304. The anti-corrosion layer 301 is made of stainless steel, the anti-seepage layer 302 is made of butyl rubber, the support layer 303 is made of carbon steel, and the high-temperature resistant layer 304 is made of alumina ceramic.

[0030] In this embodiment, the graphite cooling tower 3 is composed of an anti-corrosion layer 301, an anti-seepage layer 302, a support layer 303, and a high-temperature resistant layer 304, forming a multi-layer structure. The high-temperature resistant layer 304 is the innermost layer, made of alumina ceramic, which can remain stable at higher temperatures, thus giving the graphite cooling tower 3 good thermal stability. The anti-corrosion layer 301 is made of stainless steel, which has good corrosion resistance and oxidation resistance, improving the durability of the graphite cooling tower 3. The anti-seepage layer 302 is made of butyl rubber, which has extremely low air permeability and water permeability, effectively preventing the penetration of gas and liquid. The support layer 303 is made of carbon steel, which is easy to process and manufacture, providing sufficient support and stability for the tower body.

[0031] Example 2

[0032] This embodiment differs from Embodiment 1 in that it utilizes the packing grid 8 to effectively support the packing layer 7. Therefore, the following technical solution is disclosed; please refer to it for details. Figure 1 , Figure 3 , Figure 4 , Figure 5 The graphite cooling tower 3 has packing support assemblies on both sides inside, and each packing support assembly is filled with a packing layer 7. The packing support assembly includes a packing grid 8 inside the graphite cooling tower 3, and four sets of support frames 801 are evenly fixed at the top of the packing grid 8. Each set has four supports, and each set of support frames 801 is arranged in a ring on the packing grid 8. The outer ends of the support frame 801 are connected to a fixed frame 802 and a connecting frame 803, and one end of the support frame 801 is connected to a support ring 804. Support mesh plates 14 are evenly connected inside the packing grid 8, and the support mesh plates 14 are arranged in three layers in the packing grid 8, with equal spacing between each layer.

[0033] In this embodiment, the use of two layers of packing 7 further increases the contact time and contact area between the exhaust gas and the cooling medium within the graphite cooling tower 3, thereby enhancing the cooling effect. The packing 7 also effectively adsorbs pollutants. The packing 7 is supported by a packing grid 8 to prevent the packing from falling off, ensuring that the structure and shape of the packing 7 remain unchanged and guaranteeing the high efficiency of gas purification. The packing grid 8 is supported by multiple sets of support frames 801 and support rings 804, along with fixed frames 802 and connecting frames 803, enhancing the structural strength of the packing grid 8 and enabling it to better withstand the weight of the packing 7 and the impact of airflow. Furthermore, multiple layers of support mesh plates 14 are correspondingly provided in the packing grid 8, further improving the load-bearing capacity and effect of the packing grid 8.

[0034] 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.

[0035] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A graphite quench tower for cooling high-temperature combustion exhaust gas, comprising a graphite cooling tower (3) and lifting lugs (6), wherein the lifting lugs (6) are uniformly fixed on the outside of the graphite cooling tower (3), and a pump pipe (11) is connected to the bottom of the outside of the graphite cooling tower (3). Its features are: A manhole (13) is provided at the bottom of the outer side of the graphite cooling tower (3). An air inlet (12) is connected to one side of the bottom of the graphite cooling tower (3). A discharge port (10) is provided at one end of the outer side of the graphite cooling tower (3). A packing inlet pipe (9) is provided at both ends of the outer side of the graphite cooling tower (3). A connecting air pipe (5) is connected to the top of the graphite cooling tower (3), and a flexible connecting pipe (4) is connected to the top of the connecting air pipe (5). An air outlet pipe (1) is connected to the top of the flexible connecting pipe (4), and a liquid inlet pipe (2) is provided on the outside of the air outlet pipe (1). A packing support assembly is provided on both sides of the inside of the graphite cooling tower (3), and a packing layer (7) is filled on the packing support assembly.

2. A graphite quench tower for cooling high-temperature combustion exhaust gas according to claim 1, characterized in that: The graphite cooling tower (3) includes an anti-corrosion layer (301), an anti-seepage layer (302), a support layer (303), and a high-temperature resistant layer (304). The anti-corrosion layer (301) is the outermost layer, and the high-temperature resistant layer (304) is the innermost layer. An anti-seepage layer (302) and a support layer (303) are provided between the anti-corrosion layer (301) and the high-temperature resistant layer (304).

3. A graphite quench tower for cooling high-temperature combustion exhaust gas according to claim 2, characterized in that: The anti-corrosion layer (301) is made of stainless steel, the anti-seepage layer (302) is made of butyl rubber, the support layer (303) is made of carbon steel, and the high-temperature resistant layer (304) is made of alumina ceramic.

4. A graphite quench tower for cooling high-temperature combustion exhaust gas according to claim 1, characterized in that: The packing support assembly includes a packing grid (8) disposed inside the graphite cooling tower (3), and four sets of support frames (801) are uniformly fixed at the top of the packing grid (8), each set having four supports, and each set of support frames (801) is distributed in a ring on the packing grid (8).

5. A graphite quench tower for cooling high-temperature combustion exhaust gas according to claim 4, characterized in that: The support frame (801) is connected to a fixed frame (802) and a connecting frame (803) at both ends of its outer side, and a support ring (804) is connected to one end of the support frame (801).

6. A graphite quench tower for cooling high-temperature combustion exhaust gas according to claim 4, characterized in that: The packing grid (8) is uniformly connected with support mesh plates (14), and the support mesh plates (14) are arranged in three layers in the packing grid (8), with equal spacing between each layer.

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