A high efficiency heated resistance wire combustion tower
By employing a two-stage spiral flow guiding structure and resistance heating wire in the combustion tower, the residence time of the exhaust gas in the high-temperature zone is extended, solving the problems of incomplete combustion and high energy consumption, and realizing a combustion tower design that achieves high-efficiency heating and energy saving.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU JIANGYUFENG INTELLIGENT TECH CO LTD
- Filing Date
- 2025-09-10
- Publication Date
- 2026-07-28
AI Technical Summary
The existing combustion tower structure results in uneven contact between exhaust gas and high-temperature areas, leading to incomplete combustion in some areas, low decomposition rate of organic pollutants, and high energy consumption.
It adopts a two-stage spiral flow guiding structure to extend the residence time of exhaust gas in the high-temperature zone. The spiral guide plate promotes the full oxidation and decomposition of organic matter, combined with the high-efficiency heating of the resistance heating wire and the design of the inner and outer nested spiral airflow channels.
It improves the oxidative decomposition rate of organic matter, reduces pollutant emissions, reduces energy waste, and achieves efficient heating and energy-saving effects.
Smart Images

Figure CN224567406U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of combustion tower technology, and in particular to a high-efficiency resistance heating wire combustion tower. Background Technology
[0002] A combustion tower is an industrial device used for waste gas treatment and safe combustion. A resistance heating wire combustion tower is an industrial device that uses the principle of resistance heating to achieve high-temperature combustion. Its core is to efficiently convert electrical energy into heat energy through electric heating elements. In scenarios such as photovoltaic cell production, waste gas generated from drying or sintering needs to be treated at high temperatures by a combustion tower to ensure that it meets emission standards.
[0003] Most existing combustion towers adopt a straight-through structure, which results in a short gas flow path, insufficient residence time, and a lack of effective flow guidance design. This leads to uneven contact between exhaust gas and high-temperature areas and combustion-supporting gases, making it easy for incomplete combustion to occur in certain areas, resulting in a low decomposition rate of organic pollutants.
[0004] Therefore, those skilled in the art have provided a high-efficiency heating resistance heating wire combustion tower to solve the problems mentioned in the background art. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-efficiency resistance heating wire combustion tower. It employs a two-stage spiral flow guide to form nested spiral airflow channels, which prolongs the residence time of exhaust gas in the high-temperature zone, promotes the full oxidation and decomposition of organic matter, effectively reduces pollutant emissions, and has high heating efficiency while reducing overall energy consumption.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] A high-efficiency heating resistance heating wire combustion tower includes a tower body, a first guide plate fixedly installed inside the tower body, an inner cavity fixedly installed at the upper end of the tower body, an air inlet fixedly installed at the upper end of the inner cavity, a second guide plate fixedly installed inside the inner cavity, and a connecting pipe fixedly installed at the lower end of one side of the inner cavity.
[0008] Furthermore, a resistance heating wire body is fixedly installed inside the tower body, and the resistance heating wire body is sleeved inside the first guide plate.
[0009] Furthermore, both the first guide plate and the second guide plate are spiral-shaped, with the first guide plate being sleeved inside the second guide plate.
[0010] Furthermore, a cooler is fixedly installed at the output end of the connecting pipe, and the first guide plate is fixedly sleeved on the outside of the inner cavity.
[0011] Furthermore, the lower end of the cooler is fixedly installed at the upper end of the tower body, and a filter is fixedly installed at the upper end of the cooler.
[0012] Furthermore, an exhaust pipe is fixedly installed on one side of the tower body near the lower end, and an oxygen delivery pipe is fixedly installed on the other side of the tower body near the lower end.
[0013] Furthermore, a partition is provided at the front end of the tower body, and a handle is fixedly provided at the upper end of the front end of the partition.
[0014] This utility model has the following beneficial effects:
[0015] This invention proposes a high-efficiency resistance heating wire combustion tower. During operation, waste gas is introduced into the tower body through a waste gas pipe, while oxygen is simultaneously injected through an oxygen delivery pipe. Guided by a spiral first guide plate, the mixed gas flows upward along a spiral path, extending the gas's residence time within the tower. The resistance heating wire generates high temperatures upon energization, continuously heating the internal space of the tower. This causes the waste gas to undergo an oxidation reaction in the high-temperature environment. The high-temperature flue gas after combustion continues to rise, entering the inner cavity through the inlet. Within the inner cavity, it forms a swirling flow again under the action of a spiral second guide plate, further extending the gas residence time. This promotes the continuous oxidation and decomposition of unburned pollutants in the residual high-temperature environment, ensuring thorough purification. Both the first and second guide plates employ a spiral structure, effectively extending the gas residence time, improving combustion completeness and decomposition rate. Simultaneously, it allows the gas to fully utilize its heat, reducing energy waste. Secondary purification requires no additional energy consumption, thus lowering energy consumption. Attached Figure Description
[0016] Figure 1 This is an isometric schematic diagram of the entire utility model;
[0017] Figure 2 This is a frontal view and orthographic section axonometric schematic diagram of the present invention;
[0018] Figure 3 This is a bottom-view orthographic section schematic diagram of the present invention;
[0019] Figure 4 This is a cross-sectional axonometric view of the inner cavity of this utility model.
[0020] Legend:
[0021] 1. Tower body; 2. Connecting pipe; 3. Exhaust gas pipe; 4. Cooler; 5. Filter; 6. Baffle; 7. Air inlet; 8. Inner cavity; 9. First guide plate; 10. Resistance heating wire body; 11. Oxygen delivery pipe; 12. Second guide plate. Detailed Implementation
[0022] 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.
[0023] Reference Figures 1-4 One embodiment provided by this utility model:
[0024] A high-efficiency heating resistance heating wire combustion tower includes a tower body 1, a first guide plate 9 is fixedly installed inside the tower body 1, an inner cavity 8 is fixedly installed at the upper end of the tower body 1, an air inlet 7 is fixedly installed at the upper end of the inner cavity 8, a second guide plate 12 is fixedly installed inside the inner cavity 8, and a connecting pipe 2 is fixedly installed on one side of the inner cavity 8 near the lower end.
[0025] A resistance heating wire body 10 is fixedly installed inside the tower body 1. The resistance heating wire body 10 is sleeved on the outside of the first guide plate 9. The first guide plate 9 and the second guide plate 12 are both spiral-shaped. The first guide plate 9 is sleeved on the outside of the second guide plate 12. A cooler 4 is fixedly installed at the output end of the connecting pipe 2. The first guide plate 9 is fixedly sleeved on the outside of the inner cavity 8. The lower end of the cooler 4 is fixedly installed at the upper end of the tower body 1. A filter 5 is fixedly installed at the upper end of the cooler 4. An exhaust pipe 3 is fixedly installed on the lower end of one side of the tower body 1. An oxygen delivery pipe 11 is fixedly installed on the lower end of the other side of the tower body 1. A partition 6 is installed at the front end of the tower body 1. A handle is fixedly installed at the upper end of the front end of the partition 6.
[0026] Specifically, during use, the waste gas to be treated is transported to the lower part of the tower body 1 through the waste gas pipe 3, and mixed with the combustion oxygen introduced by the oxygen supply pipe 11 at the bottom of the tower body 1. At this time, the spiral-shaped first guide plate 9 plays a guiding role, driving the mixed gas to rise slowly along the spiral path, thereby extending the flow path of the gas in the tower, so that it can fully contact the inner wall of the tower body 1 and the inner wall of the inner cavity 8.
[0027] Subsequently, the resistance heating wire body 10 is activated and continuously heats the inside of the tower body 1. When the mixed gas flows through the high-temperature area outside the first guide plate 9, the temperature rapidly rises to the critical value required for the combustion of organic matter. Under the action of high temperature, the organic waste gas undergoes complete oxidation and decomposition, transforming into harmless carbon dioxide and water. Since the first guide plate 9 adopts a spiral structure, the gas will continuously contact the heating area and the inner wall of the tower body 1 during the flow, greatly reducing the local unburned area and ensuring that the combustion reaction is fully carried out.
[0028] The combusted gas enters the inner cavity 8 through the air inlet 7. The spiral second guide plate 12 inside further guides the gas, which prolongs the residence time of the gas in the cavity. The trace pollutants that are not fully combusted can continue to decompose in the residual high temperature, achieving secondary purification. Finally, the treated high-temperature gas enters the cooler 4 through the connecting pipe 2 to cool down, and then passes through the filter 5 to intercept any possible residual particulate matter or impurities. The clean gas is discharged from the exhaust port at the top of the filter 5 in compliance with standards. The partition 6 and the handle make it easy to manually open the tower body 1 for maintenance. Heating the tower body 1 by the resistance heating wire body 10 is a mature and publicly available technology. Therefore, its specific structure and working principle will not be described in detail in this article.
[0029] The spiral-shaped first guide plate 9, by extending the path and uniformly distributing the gas, avoids localized gas accumulation as in traditional equipment, resulting in a more uniform mixture of exhaust gas and oxygen. This provides the prerequisite for efficient combustion and reduces energy waste caused by uneven mixing. The spiral structure increases the contact area and contact time between the gas and the resistance heating wire and the inner wall of the tower 1. Combined with a sufficient supply of oxygen, this improves the oxidation and decomposition rate of organic waste gas, effectively solving the problems of incomplete combustion and pollutant residue in traditional straight-through structures. The inner cavity 8 and the second guide plate 12 utilize the residual heat after combustion to achieve secondary decomposition of trace pollutants. The purification effect can be improved by consuming additional energy, which reflects the dual advantages of energy saving and high efficiency. Cooler 4 can avoid damage to subsequent equipment by high temperature gas and extend the service life of filter 5. Filter 5 can selectively intercept particulate matter, ensuring that the final gas emission not only meets the standards for organic matter, but also meets the requirements for particulate matter emission, fully complying with environmental protection standards. Cooler 4 and filter 5 are both mature and publicly available technologies. Therefore, their specific structure and working principle will not be described in detail in this document. The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0030] Working principle: During use, the waste gas to be treated is transported to the lower part of the tower body 1 through the waste gas pipe 3, while the oxygen supply pipe 11 supplies combustion oxygen, so that the two are mixed at the bottom of the tower body 1. The spiral first guide plate 9 guides the mixed gas to rise along the spiral path, extending the flow path of the gas in the tower and making it evenly distributed. The resistance heating wire body 10 heats the inside of the tower body 1. When the mixed gas flows through the outside of the first guide plate 9, it will be heated to the combustion temperature of organic matter. The organic waste gas is oxidized and decomposed at high temperature. The spiral structure makes the gas fully contact the inner wall of the tower body 1, ensuring complete combustion. The gas after combustion enters the inner cavity 8 through the air inlet 7, and is guided by the internal spiral second guide plate 12, extending the residence time and making it fully contact the inner wall of the inner cavity 8, so that the trace pollutants that are not fully burned can continue to decompose in the residual heat. The treated high-temperature gas enters the cooler 4 through the connecting pipe 2 to cool down, and then passes through the filter 5 to intercept any possible residual particulate matter or impurities. Finally, the clean gas is discharged from the exhaust port at the top of the filter 5.
[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 high-efficiency electrically heated resistance wire combustion tower comprising a tower body (1), characterised in that: The tower body (1) is fixedly provided with a first guide plate (9), the upper end of the tower body (1) is fixedly provided with an inner cavity (8), the upper end of the inner cavity (8) is fixedly provided with an air inlet (7), the inner cavity (8) is fixedly provided with a second guide plate (12), and a connecting pipe (2) is fixedly provided on the lower side of the inner cavity (8).
2. The high-efficiency heating resistance heating wire combustion tower according to claim 1, characterized in that: The tower body (1) is fixedly provided with a resistance heating wire body (10), which is sleeved on the outside of the first guide plate (9).
3. The high-efficiency heating resistance heating wire combustion tower according to claim 1, characterized in that: Both the first guide plate (9) and the second guide plate (12) are spiral-shaped, with the first guide plate (9) inside the second guide plate (12) outside.
4. The high-efficiency heating resistance heating wire combustion tower according to claim 1, characterized in that: A cooler (4) is fixedly installed at the output end of the connecting pipe (2), and the first guide plate (9) is fixedly sleeved on the outside of the inner cavity (8).
5. The high-efficiency heating resistance heating wire combustion tower according to claim 4, characterized in that: The lower end of the cooler (4) is fixedly installed at the upper end of the tower body (1), and a filter (5) is fixedly installed at the upper end of the cooler (4).
6. The high-efficiency heating resistance heating wire combustion tower according to claim 1, characterized in that: An exhaust pipe (3) is fixedly installed on one side of the tower body (1) near the lower end, and an oxygen delivery pipe (11) is fixedly installed on the other side of the tower body (1) near the lower end.
7. The high-efficiency heating resistance heating wire combustion tower according to claim 1, characterized in that: The tower body (1) is provided with a partition (6) at the front end, and a handle is fixedly provided at the upper end of the front end of the partition (6).