Waste gas incineration device with small box body
By setting up a gas barrier partition in the small box structure and equipped with a burner and a gas replenishing fan, the problem of large combustion chambers and high energy consumption of existing devices is solved, and an efficient and energy-saving waste gas incineration effect is achieved.
Patent Information
- Application Number
- CN202422280294.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-09-19
AI Technical Summary
The combustion chamber size and volume of the existing kiln exhaust gas incineration device is large, the combustion is insufficient and the energy consumption is high, resulting in increased investment costs for enterprises and excessive space occupation.
The exhaust gas incineration device with a small box structure is equipped with a gas barrier plate divided into multiple chambers, and the atmosphere is circulated through the ventilation holes. It is equipped with a burner, a gas replenishing fan and a thermocouple to achieve temperature control and combustion aid replenishment, and improve combustion efficiency.
A miniaturized exhaust gas incineration device has been achieved, with more sufficient combustion and lower energy consumption, reducing fuel usage, reducing enterprise costs and saving space.
Smart Images
Figure CN223090675U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of waste gas treatment of kilns, and particularly relates to a waste gas incineration device with a small box body. Background Technique
[0002] Industrial kilns are devices made of refractory materials for calcining materials or firing products, and are the core equipment in the production process, which are widely used in many production industries such as metallurgy, chemical industry, building materials, glass, electronics, etc. However, a large amount of waste gas will be generated during the production process of industrial kilns; at the same time, since these waste gases mainly come from the atmosphere generated by fuel combustion in the kiln, the atmosphere volatilized during the heating and sintering of raw materials, and the atmosphere generated by chemical reactions under high-temperature conditions, etc., the waste gas contains a large amount of toxic and harmful substances and organic compounds; for example, during the normal operation of an electronic kiln, nitrogen oxides and non-methane hydrocarbons will be generated when the material is sintered in a nitrogen and high-temperature environment, and are mixed into the exhaust atmosphere of the kiln to form waste gas; if these waste gases are directly discharged without treatment, it will cause serious harm to the environment and human health.
[0003] At present, the existing kilns usually collect the high-temperature flue gas through one or two rows of smoke chimney openings on the kiln top and then lead it into a stainless steel smoke pipe and then into an incinerator for incineration. The incinerator uses the heat generated by the combustion of auxiliary fuel to raise the temperature of the combustible harmful gases in the waste gas to the reaction temperature, so that they undergo an oxidation reaction, decompose into carbon dioxide and water and then are discharged. However, this existing incineration method will not only waste a lot of fuel, but also generate a lot of waste gas during fuel combustion, and cannot achieve an ideal incineration effect. Secondly, in order to enable the combustible harmful gases in the waste gas to be fully burned, the existing incineration devices generally extend the residence time of the waste gas in the combustion chamber by expanding the size and volume of the combustion chamber, so as to enable the waste gas to be fully burned; expanding the size and volume of the combustion chamber will increase the construction investment cost of the enterprise, and the occupied space of the incineration device will also be relatively large, which is not conducive to the long-term development of the enterprise.
[0004] The utility model provides a waste gas incineration device with a small box body to solve the problems existing in the prior art that the existing incineration device has a large size and volume of the combustion chamber, the waste gas in the combustion chamber is not fully burned and the energy consumption is large. Content of the Utility Model
[0005] The purpose of the utility model is to provide a waste gas incineration device with a small box body to solve the problems existing in the prior art that the existing incineration device has a large size and volume of the combustion chamber, the waste gas in the combustion chamber is not fully burned and the energy consumption is large.
[0006] The technical solution of the present utility model is: An exhaust gas incineration device for a small box body, including a combustion device furnace frame, a combustion furnace arranged inside the combustion device furnace frame, a combustion device platform arranged at the upper end of the combustion device furnace frame, and a burner; an air inlet and an exhaust outlet are arranged on the combustion furnace; the burner is arranged on the side wall of the combustion furnace and is biased towards the air inlet side;
[0007] At least one air baffle is arranged inside the combustion furnace, and a plurality of ventilation holes are arranged on each air baffle;
[0008] At least one air baffle divides the combustion furnace into at least two chambers; the atmospheres in at least two chambers communicate with each other through the ventilation holes;
[0009] The air inlet and the exhaust outlet are arranged in different chambers.
[0010] Preferably, two air baffles are arranged inside the combustion furnace; the two air baffles divide the combustion furnace into three chambers, namely a first chamber, a second chamber, and a third chamber; the air inlet and the burner are arranged in the first chamber at the front end of the combustion furnace; the exhaust outlet is arranged in the third chamber at the end of the combustion furnace.
[0011] Preferably, an air supplement fan is arranged on the burner for supplementing air into the combustion furnace through the burner.
[0012] Preferably, it further includes a centrifugal induced draft fan; the centrifugal induced draft fan is arranged on the combustion device platform through a fan frame and is connected to the exhaust outlet on the combustion furnace through an exhaust pipe.
[0013] Preferably, an inspection port is arranged on the centrifugal induced draft fan.
[0014] Preferably, an exhaust butterfly valve is arranged inside the exhaust pipe.
[0015] Preferably, at least one thermocouple is further arranged on the combustion furnace for real-time detection of the temperature inside the combustion furnace.
[0016] Compared with the prior art, the advantages of the present utility model are:
[0017] (1) The present utility model provides an exhaust gas incineration device for a small box body. The incineration device is small in size and volume, has a simple internal structure, can be continuously used for a long time, and the subsequent maintenance and repair methods are convenient; at least one air baffle is arranged inside the combustion furnace of the incineration device, and air vent holes for the atmosphere to pass through are arranged on the air baffle; the air baffle can effectively reduce the flow rate of the atmosphere inside the combustion furnace, thereby prolonging the residence time of the exhaust gas in the furnace body and the combustion duration of the exhaust gas, so that the exhaust gas burns more fully, and the combustion decomposition efficiency is higher. At the same time, it also helps to reduce the length and volume of the combustion furnace; a burner and a thermocouple are also arranged on the combustion furnace of the incineration device; the temperature signal detected by the thermocouple is linked with the gas valve of the burner, which can not only achieve precise control of the temperature inside the combustion furnace, but also help to save the consumption of gas; it solves the problems existing in the prior art that the existing incineration device has a large size and volume of the combustion chamber, incomplete combustion of the exhaust gas inside the combustion chamber and high energy consumption.
[0018] (2) In the exhaust gas incineration device for a small box body provided by the present utility model, a supplementary air blower is arranged on the burner, and sufficient air can be supplemented into the combustion furnace through the burner. The supplemented air acts as a combustion-supporting agent and is fully mixed with the exhaust gas inside the combustion furnace, so that the combustible gas in the exhaust gas is fully burned, and the combustion decomposition efficiency of the exhaust gas is improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The present utility model will be further described below in conjunction with the drawings and embodiments:
[0020] Figure 1 It is a schematic structural view of the incineration device provided by the present utility model;
[0021] Figure 2 It is a top view of the incineration device provided by the present utility model;
[0022] Figure 3 It is a schematic structural view of the combustion furnace provided by the present utility model;
[0023] Figure 4 It is a side view of the combustion furnace provided by the present utility model;
[0024] Figure 5 It is a top view of the combustion furnace provided by the present utility model;
[0025] Figure 6 It is a schematic structural view of the combustion device provided by the present utility model;
[0026] Wherein: 1. Combustion device furnace frame; 2. Combustion furnace; 3. Combustion device platform; 21. Air inlet; 22. Exhaust port; 23. Through hole; 4. Base frame; 5. Centrifugal induced draft fan; 51. Inspection port; 52. Fan frame; 6. Burner; 7. Air supplement fan; 8. Air baffle; 81. Vent hole; 82. Chamber; 821. First chamber; 822. Second chamber; 823. Third chamber; 9. Exhaust pipe; 91. Exhaust butterfly valve; 10. Thermocouple; 11. Kiln furnace body; 12. Air duct. Detailed implementation manners
[0027] The following combines specific embodiments to further elaborate on the content of the present utility model:
[0028] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "side", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.
[0029] An exhaust gas incineration device for a small box body includes a combustion device furnace frame 1, a combustion furnace 2 arranged inside the combustion device furnace frame 1, and a combustion device platform 3 arranged at the upper end of the combustion device furnace frame 1; as Figure 1 shown, the incineration device further includes a burner 6, and the burner 6 is arranged on the side wall of the combustion furnace 2. An air inlet 21 and an exhaust port 22 are arranged on the combustion furnace 2. The kiln furnace body 11 is connected to the air inlet 21 on the combustion furnace 2 through an air duct 12, and the exhaust gas generated inside the kiln furnace body 11 is transported into the combustion furnace 2 for incineration treatment; the exhaust gas forms gases such as carbon dioxide that can be directly discharged after incineration treatment and is directly discharged into the atmosphere through the exhaust port 22.
[0030] As Figure 2 shown, a through hole 23 is arranged on one of the side walls of the combustion furnace 2 for accommodating the burner 6; the burner 6 heats the inside of the combustion furnace 2 to make the temperature inside the combustion furnace 2 reach the ignition point of the combustible gas in the exhaust gas, and the burner 6 can raise the temperature inside the combustion furnace 2 to about 850 °C at most, which is sufficient to meet the requirements of exhaust gas combustion. At the same time, in order to enable the exhaust gas transported into the combustion furnace 2 to start burning quickly and have sufficient combustion time, the burner 6 should be arranged on the side wall of the combustion furnace 2 that is biased towards the air inlet 21. Sufficient combustion of the exhaust gas usually also requires sufficient combustion aids, such as oxygen in the air and other oxidants, inside the combustion furnace 2; therefore, an air supplement fan 7 is also arranged on the burner 6 so that the burner 6 can supplement air into the combustion furnace 2 while heating the inside of the combustion furnace 2.
[0031] There are two baffle plates 8 arranged in the combustion furnace 2, and the baffle plates 8 are made of high-temperature and impact-resistant materials; as Figure 3 shown, the two baffle plates 8 divide the combustion furnace 2 into three chambers 82, namely the first chamber 821, the second chamber 822, and the third chamber 823; at the same time, as Figure 4 shown, several ventilation holes 81 are arranged on each baffle plate 8, and the atmosphere between the first chamber 821, the second chamber 822, and the third chamber 823 circulates through the ventilation holes 81. As Figure 5 shown, the air inlet 21 is arranged in the first chamber 821, so that the waste gas transported into the combustion furnace 2 first enters the first chamber 821 and flows from the first chamber 821 to the second chamber 822 and the third chamber 823 in sequence; in order to make the waste gas start burning in the first chamber 821 and then extend the combustion time of the waste gas, it is necessary for the temperature in the first chamber 821 to reach the ignition point of the waste gas first, which can be achieved by arranging the burner 6 in the first chamber 821 as well and making the burner 6 directly heat the first chamber 821; the exhaust port 22 is arranged in the third chamber 823, and part of the waste gas, the supplemented air, and the carbon dioxide and other gases generated by the combustion of the waste gas in the first chamber 821 enter the second chamber 822 through the ventilation holes 81 on the baffle plate 8 and continue to burn inside the second chamber 822; the atmosphere inside the second chamber 822 enters the third chamber 823 through the ventilation holes 81 and continues to burn inside the third chamber 823, and then is discharged through the discharge port 22. Arranging the baffle plate 8 in the combustion furnace 2 can greatly reduce the flow rate of the waste gas inside the combustion furnace 2, not only increasing the oxidation reaction time of the combustible gas in the waste gas, thereby improving the combustion and decomposition efficiency of the waste gas, but also helping to reduce the overall length and volume of the combustion furnace 2.
[0032] In other embodiments, the number of baffle plates 8 to be provided can be determined according to the actual application requirements and the length and / or volume of the combustion furnace 2, that is, at least one baffle plate 8 is arranged in the combustion furnace 2, and the at least one baffle plate 8 divides the combustion furnace 2 into at least two chambers 82; at the same time, the air inlet 21 and the exhaust port 22 are arranged in different chambers 82.
[0033] The incineration device further includes a centrifugal induced draft fan 5; as Figure 6As shown in the figure, the centrifugal induced draft fan 5 is arranged on the combustion device platform 3 through the fan frame 52; and the centrifugal induced draft fan 5 is connected to the exhaust port 22 on the combustion furnace 2 through the exhaust pipe 9. The centrifugal induced draft fan 5 can promote the air flow at the exhaust port 22, help the gas in the combustion furnace 2 to be discharged smoothly, avoid the gas accumulating in the furnace and causing pressure inside the combustion furnace 2, ensure the smooth progress of the incineration process, and also ensure that the treatment and emission of the gas meet the environmental protection standards; at the same time, to ensure the effective discharge of the gas and the maximization of the incineration efficiency, it may be necessary to adjust the air volume and air speed during the exhaust process, and then the rotation speed or type of the centrifugal induced draft fan 5 can be adjusted according to the needs to adapt to different air volume and air speed requirements. An inspection port 51 is provided on the centrifugal induced draft fan 5 for easy observation and subsequent maintenance. An exhaust butterfly valve 91 is provided in the exhaust pipe 9 for facilitating the adjustment of the flow rate and flow of the flue gas during the exhaust process.
[0034] The incineration device further includes at least one thermocouple 10, and the thermocouple 10 is arranged on the combustion furnace 2 for real-time detection of the temperature inside the combustion furnace 2; at the same time, the temperature signal detected by the thermocouple 10 is linked with the gas valve of the burner 6 to achieve automatic temperature control of the combustion furnace 2. Arranging the thermocouple 10 on the combustion furnace 2 can not only achieve precise control of the temperature inside the combustion furnace 2, but also help to save the consumption of gas.
[0035] In the actual application site, in order to make more effective use of space, reduce the floor area, or to make the incineration device more conveniently receive the waste gas discharged from the kiln, the incineration device needs to be arranged above the kiln, or the incineration device needs to be arranged on the platform of the base frame 4, and the height of the base frame 4 is not less than the height of the kiln.
[0036] The above embodiments are only used to illustrate the technical concept and characteristics of the present invention, and its purpose is to enable those who are familiar with this technology to understand the content of the present invention and implement it accordingly, and it cannot be used to limit the protection scope of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention.
Claims
1. An exhaust gas incineration device for a small box body, characterized in that, It includes a combustion device furnace frame (1), a combustion furnace (2) arranged inside the combustion device furnace frame (1), a combustion device platform (3) arranged at the upper end of the combustion device furnace frame (1), and a burner (6); an air inlet (21) and an exhaust port (22) are arranged on the combustion furnace (2); the burner (6) is arranged on the side wall of the combustion furnace (2) and is biased towards the air inlet (21). At least one baffle plate (8) is arranged inside the combustion furnace (2), and a number of ventilation holes (81) are arranged on each baffle plate (8). At least one baffle plate (8) divides the combustion furnace (2) into at least two chambers (82); the atmospheres in at least two chambers (82) communicate with each other through the ventilation holes (81). The air inlet (21) and the exhaust port (22) are arranged in different chambers (82).
2. The waste gas incineration device for a small box body according to claim 1, characterized in that: Two baffle plates (8) are arranged inside the combustion furnace (2); the two baffle plates (8) divide the combustion furnace (2) into three chambers (82), namely a first chamber (821), a second chamber (822), and a third chamber (823); the air inlet (21) and the burner (6) are arranged in the first chamber (821) at the front end of the combustion furnace (2); the exhaust port (22) is arranged in the third chamber (823) at the end of the combustion furnace (2).
3. The waste gas incineration device for a small box body according to claim 1, wherein: A supplementary air blower (7) is arranged on the burner (6) for supplementing air into the combustion furnace (2) through the burner (6).
4. The waste gas incineration device for a small box body according to claim 1, characterized in that: It further includes a centrifugal induced draft fan (5); the centrifugal induced draft fan (5) is arranged on the combustion device platform (3) through a fan frame (52) and is communicated with the exhaust port (22) on the combustion furnace (2) through an exhaust pipe (9).
5. The waste gas incineration device for a small box body according to claim 4, characterized in that: An inspection port (51) is arranged on the centrifugal induced draft fan (5).
6. An exhaust gas incineration device for a small box body according to claim 4, characterized in that: An exhaust butterfly valve (91) is arranged inside the exhaust pipe (9).
7. An exhaust gas incineration device for a small box according to claim 1, characterized in that: At least one thermocouple (10) is further arranged on the combustion furnace (2) for real-time detection of the temperature inside the combustion furnace (2).