Energy-saving and environment-friendly waste gas combustion treatment device

Abstract

The utility model discloses an energy-saving and environment-friendly waste gas combustion treatment device, which comprises a burner with a gas inlet end and a flame jet end, air is introduced into the gas inlet end of the burner, the treatment device is provided with a guide wall on one side of the flame jet end of the burner, the guide wall is provided with a plurality of waste gas introduction holes, and the waste gas introduction holes are communicated with the gas inlet end of the burner. Waste gas containing combustibles is introduced into the waste gas introduction hole, the waste gas is ignited by flames jetted by the flame jetting end of the combustor, and the portion, away from the flame jetting end, of the guide wall is connected with an exhaust drainage structure for guiding hot gas generated by combustion to be exhausted. According to the utility model, the combustion process is more stable, flames ejected by the combustor are more fully contacted with waste gas, the waste gas is fully combusted, and the combustion efficiency of the waste gas is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of chemical industry, and specifically relates to a hose line production technology. Background Art

[0002] like Figure 1 As shown, the hose line shaping oven in the prior art includes a first oven 100 and a second oven 200, wherein the first oven is provided with a first heating component 11 and a first exhaust gas discharge port 12, and furthermore, a dipping component is provided in the first oven, and the second oven 200 is provided with a second heating component 21. During the production process of the hose line, the hose line raw wire is first dipped in glue by the dipping component of the first oven, and initially shaped, and then is sent to the second oven for secondary shaping. In the first oven, the organic waste gas generated during the dipping process is discharged through the first exhaust gas discharge port, and then transported to the dedicated waste gas treatment device 300 through the first exhaust gas conveying pipeline 13 for treatment, usually by combustion treatment.

[0003] The structure of the waste gas combustion treatment device refers to the prior art, and uses a natural gas burner to ignite the waste gas. Air and waste gas are introduced into the air inlet of the burner at the same time. Air is used to ensure normal combustion. The air and waste gas are mixed and ignited. However, due to the unstable waste gas flow, the combustion process is unstable, and the flame is easily blown out when the waste gas flow is too large. In particular, for the waste gas generated by the hose line shaping oven, the waste gas material components are more likely to cause incomplete combustion using general burners. In order to make it burn fully, a higher power or more complex burner is required, and more energy will be consumed accordingly. In addition, the waste gas combustion treatment device in the prior art directly sets an exhaust port to discharge the waste gas after combustion treatment. If the waste gas after combustion treatment cannot be discharged quickly, it will also affect the waste gas combustion efficiency. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an energy-saving and environmentally friendly waste gas combustion treatment device, reduce the control difficulty, make the combustion process more stable and more complete, and improve the waste gas combustion efficiency.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: an energy-saving and environmentally friendly waste gas combustion treatment device, comprising a burner with an air inlet end and a flame injection end, air is introduced into the air inlet end of the burner, and the treatment device is provided with a guide wall on one side of the flame injection end of the burner, and a plurality of waste gas introduction holes are opened on the guide wall, and the waste gas introduction holes introduce waste gas containing combustibles, and the waste gas is ignited by the flame injected from the flame injection end of the burner, and the guide wall is connected with an exhaust diversion structure away from the flame injection end to guide the discharge of hot gas generated by combustion.

[0006] Preferably, the exhaust gas diversion structure comprises a hot gas outlet and a diversion pipe connecting the hot gas outlet and the guide wall away from the flame injection end, and the cross-sectional area of ​​the diversion pipe gradually decreases from the guide wall to the hot gas outlet.

[0007] Preferably, a flame baffle is provided between the guide wall away from the flame injection end and the drainage tube, and an air vent is provided on the flame baffle. The flame baffle is used to accumulate the flame on the inner side of the guide wall, and the air vent allows the hot gas generated by the combustion to flow into the drainage tube.

[0008] Preferably, the guide wall is a bell-mouth structure.

[0009] Preferably, a front section, a middle section and a rear section are provided along the axial direction of the bell-mouth structure, and the diameter of the exhaust gas inlet hole in the middle section is larger than those of the front section and the rear section.

[0010] Preferably, the length of the guide wall is greater than the jet length of the flame.

[0011] Preferably, the exhaust gas introduction holes are in the shape of circular holes or rectangular holes; and / or, the exhaust gas introduction holes are arranged in a honeycomb shape.

[0012] Preferably, the burner is connected to a natural gas delivery pipeline, and the natural gas delivery pipeline is connected to a manual valve and a solenoid valve.

[0013] Preferably, the burner is connected to an air delivery pipeline, and the air delivery pipeline is connected to a fan and an air volume regulating valve.

[0014] Preferably, the hot gas outlet is connected to a heat transfer pipeline, and the heat transfer pipeline is connected to a heat exchanger.

[0015] The utility model adopts the above technical solution and has the following beneficial effects:

[0016] 1. Compared with conventional burners, a guide wall is provided on one side of the flame ejection end of the burner, and a plurality of exhaust gas introduction holes are opened on the guide wall to allow air to enter from the air inlet end. However, the exhaust gas introduction hole is provided on one side of the flame ejection end, which is significantly different from the prior art that is provided on the air inlet end. The combustion process of air and gas entering the burner is the same as that of conventional burners, and the burner can burn normally, making the combustion process more stable. The flame ejected by the burner is in more complete contact with the exhaust gas and the exhaust gas is fully burned.

[0017] Since the guide wall is connected with an exhaust diversion structure away from the flame injection end to guide the exhaust of hot gas generated by combustion, the hot gas generated by combustion can be discharged quickly to avoid accumulation on the inner side of the guide wall and affecting the normal combustion of exhaust gas, thereby improving the exhaust gas combustion efficiency.

[0018] Since the combustion temperature can be guaranteed, the heat generated by the exhaust gas combustion can be used to control the temperature of other equipment.

[0019] Due to the low price, high calorific value, safety and environmental performance of natural gas, it has the advantages of energy saving and environmental protection compared with the existing thermal oil radiator heating.

[0020] 2. One end of the drainage pipe is connected to the guide wall away from the flame injection end, and the other end is connected to the hot gas outlet, and the cross-sectional area gradually decreases from the guide wall to the hot gas outlet, which can speed up the hot gas discharge speed.

[0021] 3. Since a flame baffle is provided between the guide wall away from the flame injection end and the drainage pipe, a vent hole is provided on the flame baffle, wherein the flame baffle is used to accumulate the flame on the inner side of the guide wall to improve the combustion efficiency, and the vent hole allows the hot gas generated by the combustion to flow into the drainage pipe to avoid the hot gas accumulating on the inner side of the guide wall and affecting the normal combustion of the exhaust gas.

[0022] 4. A guide wall is provided (for example, the guide wall is designed as a bell-mouth structure). In this way, the exhaust gas and the high-temperature flame can be fully in contact. This is because the flame ejected from the flame ejection end of the burner spreads outward from the center, and the outer flame has the highest temperature. The bell-mouth structure is designed roughly along the direction of the outer flame. Therefore, the exhaust gas introduced by the exhaust gas inlet hole is constrained by the bell-mouth wall, and basically directly contacts the outer flame and is ignited by the outer flame. At the same time, the combustion energy is constrained by the bell-mouth wall and is more concentrated, and the combustion efficiency is higher.

[0023] 5. According to the shape of the flame sprayed from the flame spray end, the axial middle section of the bell mouth structure has a larger flame heat, while the front and rear sections have a relatively smaller heat. The diameter of the corresponding exhaust gas introduction hole in the middle section is larger than that in the front and rear sections, that is, the ventilation area in the middle section is larger than that in the front and rear sections. In this way, the exhaust gas flow in the front and rear sections is small, with a smaller flame, and the exhaust gas flow in the middle section is large, with a larger flame. The exhaust gas flow size and the flame size are matched to achieve full combustion. In addition, the exhaust gas flow in the front section is small, which can also avoid affecting the normal combustion of the burner due to being close to the burner.

[0024] 4. The length of the guide wall is greater than the jet length of the flame, thereby ensuring that the exhaust gas introduced by a number of exhaust gas introduction holes can be distributed over the entire flame jet length, and the exhaust gas combustion efficiency is higher.

[0025] 5. Since the natural gas transmission pipeline is connected with a manual valve and a solenoid valve, and the air transmission pipeline is connected with a fan and an air volume regulating valve, the natural gas and air flow rates can be adjusted according to the exhaust gas flow rate and the combustible content in the exhaust gas to ensure full combustion of the exhaust gas, precise control, and a stable combustion process.

[0026] 6. The heat transfer pipeline is connected with a heat exchanger, which heats other liquids or gases that need to be heated. In this way, the waste gas heat is recycled.

[0027] The specific technical solutions and beneficial effects of the present invention will be described in detail in the following specific embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:

[0029] Figure 1 It is a structural schematic diagram of a hose line shaping oven assembly in the prior art;

[0030] Figure 2 This is an application example of the utility model for an energy-saving and environment-friendly combustion treatment device for waste gas containing combustibles;

[0031] Figure 3 It is a schematic diagram of one structure of the second heating component;

[0032] Figure 4 1. It is a schematic diagram comparing the exhaust gas introduction hole in the middle section with the exhaust gas introduction holes in the front section and the rear section;

[0033] Figure 5 is another structural schematic diagram of the second heating component;

[0034] Figure 6 It is a structural schematic diagram of a second heating component being independently arranged from an oven assembly and connected to a heat exchanger;

[0035] Figure 7 This is a schematic diagram of the state of the test filter after it was placed at the exhaust gas inlet for 24 hours;

[0036] Figure 8 This is a schematic diagram of the state of the test filter after it was placed at the hot air outlet for 24 hours;

[0037] Fig. 9 This is a schematic diagram of the state of the coarse filter after being placed at the hot air outlet for one week;

[0038] Fig.10 yes Fig. 9 Enlarged schematic diagram of the medium and coarse filter;

[0039] In the figure: a first oven 100, a first heating component 11, a first exhaust gas discharge port 12, a first exhaust gas delivery pipeline 13, a second oven 200, a second heating component 21, a burner 211, a heat delivery pipeline 22, a heat exchanger 23, an exhaust gas inlet chamber 201, a guide wall 202, an exhaust gas introduction hole 203, a small diameter hole 2031, a large diameter hole 2032, an exhaust gas inlet 204, a hot gas storage chamber 205, a hot gas outlet 206, a flame baffle 207, a drainage pipe 208, a shell 209, and a dedicated exhaust gas treatment device 300. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0041] Those skilled in the art will appreciate that, in the absence of conflict, the features in the following embodiments and implementations may be combined with each other.

[0042] The terms used in the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. For example, the words "upper", "lower", "front", "back", etc., which indicate the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device / element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0043] In the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "fixation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0045] Example

[0046] like Figures 2 to 3As shown, it is an embodiment of the utility model that an exhaust gas combustion treatment device containing combustible exhaust gas is applied to a hose line shaping oven assembly. The hose line shaping oven assembly includes a first oven 100 and a second oven 200. The first oven 100 is provided with a first oven body, a glue dipping component arranged inside the first oven body, a first exhaust gas discharge port 12 arranged on the side wall of the first oven body, and a first heating component 11 for heating the internal space of the first oven body. The second oven 200 is provided with a second oven body and a second heating component 21 for heating the internal space of the second oven body.

[0047] During the production of the hose line, the hose line is dipped in the glue dipping assembly of the first oven and initially shaped, and then heated in the second oven for secondary shaping. In the first oven, since the glue contains volatile organic compounds (VOCs), the waste gas generated during the heating process contains a large amount of volatile organic compounds. The existing technology uses a special waste gas treatment device for treatment, which has a large investment and high cost. In addition, the waste gas material components are more likely to cause incomplete combustion using general burners. In order to make it burn fully, a larger power or more complex burner is required, which will consume more energy.

[0048] The first heating assembly and the second heating assembly of this embodiment both use burners that utilize natural gas combustion for heating. Since natural gas is cheap, has high calorific value, and has good safety and environmental performance, it has the advantages of energy saving and environmental protection compared with the existing thermal oil radiator for heating.

[0049] The burner has an air inlet end and a flame ejection end, air is introduced into the air inlet end, the flame generated by combustion is ejected toward the flame ejection end, the flame is heated to generate hot gas, and then the hot gas is introduced into the inner space of the first oven body and the inner space of the second oven body, so as to realize the heating of the first oven and the second oven, and the temperature control of the first oven and the second oven is realized by combining the power of the burner and the natural gas delivery amount control. The first heating component is the same as the conventional burner heating structure.

[0050] The utility model focuses on optimizing the design of the second heating component 21. A guide wall 202 is provided on one side of the flame ejection end of the burner. A plurality of waste gas introduction holes 203 are provided on the guide wall. The waste gas introduction holes 203 are connected to the first waste gas discharge port 12 through the first waste gas delivery pipeline 13, so as to introduce the waste gas discharged from the first oven. The waste gas is ignited by the flame ejected from the flame ejection end of the burner. Therefore, the second heating component 21 also has a waste gas treatment function. Of course, it can also be used as an independent waste gas treatment device to treat waste gas containing combustibles, such as organic matter, in other fields.

[0051] Compared with the conventional burner, the second heating component is provided with a guide wall on one side of the flame injection end of the burner, and a plurality of exhaust gas inlet holes are opened on the guide wall. During the operation of the second heating component, air is introduced from the air inlet end, and the exhaust gas inlet holes are arranged on one side of the flame injection end. The combustion process of air and gas entering the burner is the same as that of the conventional burner, and the burner can burn normally. After the combustion, the ejected flame contacts the exhaust gas and ignites the exhaust gas. In this way, the airflow rate and flow velocity generated by the exhaust gas introduced from the exhaust gas inlet holes have almost no effect on the normal combustion of the burner, and there is no need to accurately control the flow rate and flow velocity of the exhaust gas to prevent the exhaust gas flow from blowing out the burner flame.

[0052] This is obviously different from the prior art, which is set at the air inlet end. The combustion process of air and gas entering the burner is the same as that of a conventional burner. The burner can burn normally, and the flame ejected after combustion contacts the exhaust gas more fully and ignites the exhaust gas for combustion. In this way, the combustion temperature can be guaranteed, so that the heat generated by the exhaust gas combustion can be used to control the temperature of other equipment.

[0053] The waste gas inlet hole is connected to the first waste gas discharge port through the first waste gas conveying pipeline, so as to introduce the waste gas discharged from the first oven. The waste gas is ignited by the flame sprayed from the flame spray end of the burner. In this way, the waste gas can be treated without setting up a special waste gas treatment device, thereby reducing costs.

[0054] During the exhaust gas combustion process, heating can be performed. Since the heat of the exhaust gas combustion is utilized, the amount of natural gas used in the second heating component can be appropriately reduced, thereby saving natural gas usage and reducing costs.

[0055] The second heating component has the dual functions of exhaust gas treatment device and second oven heating, achieving two functions in one device and reducing costs.

[0056] In addition, the exhaust gas discharged from the first exhaust gas outlet of the first oven has a relatively high temperature, usually greater than 200 degrees. Therefore, this part of the heat is also utilized during the combustion process of the second heating component, thereby improving the heating efficiency of the second heating component. At the same time, the exhaust gas can be heated during the combustion process, thereby saving gas consumption and reducing costs. More importantly, the heat from the exhaust gas combustion can be utilized by the second oven, realizing internal recycling in the hose line shaping production equipment. Compared with the use of heat exchangers to recycle heat, the heat utilization rate is greatly improved.

[0057] Specifically, the guide wall 202 is a bell-mouth structure with a gradually increasing diameter from front to back, that is, a truncated cone cylindrical structure. Of course, as a deformation, it can also be a square truncated cone cylindrical structure, or other structures adapted to the flame shape, that is, designed according to the flame shape. This is because the flame ejected from the flame injection end of the burner spreads outward from the center, and the outer flame temperature is the highest. The bell-mouth structure is designed roughly along the direction of the outer flame of the flame. Therefore, the exhaust gas introduced by the exhaust gas introduction hole is constrained by the bell-mouth wall surface, and basically directly contacts the outer flame and is ignited by the outer flame. At the same time, the combustion energy is more concentrated due to the constraint of the bell-mouth wall surface, and the combustion efficiency is higher.

[0058] According to the shape of the flame sprayed from the flame spray end, the flame heat in the axial middle section corresponding to the bell mouth structure is larger, while the front section and the rear section are relatively smaller, such as Figure 4 As shown, the diameter D2 of the corresponding exhaust gas introduction hole in the middle section is larger than the diameter D1 of the exhaust gas introduction hole in the front section and the rear section, which corresponds to the large diameter hole 2032 and the small diameter hole 2031 in the figure, that is, the ventilation area of ​​the middle section is larger than the front section and the rear section, so that the exhaust gas flow in the front section and the rear section is small, with a smaller flame, and the exhaust gas flow in the middle section is large, with a larger flame, and the exhaust gas flow size and the flame size are matched to achieve full combustion. In addition, the exhaust gas flow in the front section is small, which can also avoid affecting the normal combustion of the burner due to being close to the burner.

[0059] In order to ensure that the exhaust gas is fully burned, the length of the guide wall is greater than the jet length of the flame, thereby ensuring that the exhaust gas introduced by the several exhaust gas introduction holes can be distributed over the entire flame jet length, and the exhaust gas combustion efficiency is higher.

[0060] It is understood that the shape of the exhaust gas introduction hole 203 is not limited, and can be a circular hole, a rectangular hole, an elliptical hole, or other shapes. Preferably, the exhaust gas introduction holes are arranged in a honeycomb shape, and of course can be arranged in a rectangular array.

[0061] In order to avoid the exhaust gas after combustion treatment not being discharged quickly, which would affect the exhaust gas combustion efficiency. Figure 5 As shown, an exhaust diversion structure for guiding the exhaust of the hot gas generated by the combustion can also be connected to the guide wall away from the flame injection end. The hot gas generated by the combustion can be discharged quickly to avoid accumulation on the inner side of the guide wall and affecting the normal combustion of the exhaust gas, thereby improving the exhaust gas combustion efficiency. Specifically, the exhaust diversion structure includes a hot gas outlet 206 and a diversion pipe 208 connecting the hot gas outlet and the guide wall away from the flame injection end. The cross-sectional area of ​​the diversion pipe gradually decreases from the guide wall to the hot gas outlet, for example, it is a conical tube, or it can be a venturi tube, or other structures that can speed up the hot gas discharge speed. In addition, it can be understood that all structures of the second heating assembly 21 are integrated on the shell 209.

[0062] Furthermore, a flame baffle 207 may be provided between the guide wall away from the flame injection end and the drainage pipe, and ventilation holes are provided on the flame baffle. The size and arrangement area of ​​the ventilation holes are determined according to the test to ensure that the flame can be blocked and the hot gas can pass normally. The flame baffle is used to make the flame accumulate on the inner side of the guide wall to improve the combustion efficiency, and the ventilation holes make the hot gas generated by the combustion flow into the drainage pipe to avoid the hot gas accumulating on the inner side of the guide wall and affecting the normal combustion of the exhaust gas.

[0063] Furthermore, the first exhaust gas delivery pipeline is provided with an exhaust gas flow detector, which is used to detect the exhaust gas flow in real time, and the second heating component is provided with a second heating controller, which controls the heating power of the burner in the second heating component according to the exhaust gas flow delivered by the first exhaust gas delivery pipeline. Since the temperature of the second oven needs to be maintained within a suitable range, but the exhaust gas flow is unstable, and the heat generated by combustion is also unstable, if the heating power of the burner in the second heating component remains unchanged, it will cause a large temperature fluctuation in the second oven. Therefore, the first exhaust gas delivery pipeline is provided with an exhaust gas flow detector, which is used to detect the exhaust gas flow in real time, and the second heating component is provided with a second heating controller, which controls the heating power of the burner in the second heating component according to the exhaust gas flow delivered by the first exhaust gas delivery pipeline, thereby controlling the heat of the flame ejected by the burner in the second heating component, which is superimposed with the heat generated by the exhaust gas combustion, and can keep the temperature of the second oven relatively stable.

[0064] Furthermore, the second heating assembly 21 further includes a hot gas storage cavity 205 connected to the guide wall, and a hot gas outlet 206 is provided at the rear side of the hot gas storage cavity 205. The hot gas storage cavity is connected to a heat delivery pipe 22 through the hot gas outlet 206, and the heat delivery pipe 22 is connected to the inner space of the second oven body. The hot gas generated by the normal combustion of the burner and the combustion of the exhaust gas is stored in the hot gas storage cavity, and then transported to the inner space of the second oven body through the heat delivery pipe, so as to realize the heating of the second oven, heat the rubber hose line, and perform secondary shaping.

[0065] Furthermore, the second heating assembly 21 further includes an exhaust gas introduction cavity 201 arranged circumferentially around the guide wall, the exhaust gas introduction cavity is provided with an exhaust gas inlet 204, the exhaust gas inlet 204 is connected to the first exhaust gas delivery pipeline 13, and the first exhaust gas delivery pipeline is connected to a fan. In this way, the exhaust gas discharged from the first exhaust gas discharge port can be stably transported to the exhaust gas introduction cavity, and then diffused and enter the inner side of the guide wall from multiple directions through a plurality of exhaust gas introduction holes.

[0066] In this embodiment, the second oven 200 is arranged below the first oven 100, the first exhaust gas discharge port 12 is arranged at the top of the first oven, the second heating component 21 is arranged above the first oven, and a heat transfer pipe 22 is arranged between the second heating component 21 and the second oven. The temperature of the exhaust gas is relatively high, so it will flow upward. The first exhaust gas discharge port is arranged at the top of the first oven, which is conducive to the exhaust gas discharge. The second heating component is arranged above the first oven, so that the temperature of the exhaust gas just discharged from the first exhaust gas discharge port is relatively high, so that the heat of the exhaust gas can be effectively utilized. Compared with the second heating component being arranged close to the second oven, the effective utilization of the heat of the exhaust gas can be further achieved.

[0067] Referring to the prior art, the temperature of the internal space of the first oven body is greater than the temperature of the internal space of the second oven body. Correspondingly, the heating temperature of the first heating assembly 11 is greater than the heating temperature of the second heating assembly 21. Specifically, the model and power of the burner in the first heating assembly are greater than the model and power of the burner in the second heating assembly, so as to further reduce the cost. The temperature of the flame sprayed by the flame spray end of the burner in the first heating assembly is about 1200 degrees, for example, 1000-1500 degrees. The temperature of the flame sprayed by the flame spray end of the burner in the second heating assembly is about 700 degrees, for example, 500-800 degrees. The temperature of the hot gas in the hot gas storage chamber of the second heating assembly is 400-500 degrees, and the temperature is further reduced after being transported by the heat transport pipeline. After finally entering the internal space of the second oven body, the temperature is about 200 degrees-300 degrees. Therefore, the specification (power) of the burner of the second heating assembly can be smaller than the specification (power) of the burner of the first heating assembly, thereby reducing the cost.

[0068] It is understandable that, whether it is the first heating component or the second heating component, the burner is connected to a natural gas delivery pipeline, and the natural gas delivery pipeline is connected to a manual valve and a solenoid valve. The burner is connected to an air delivery pipeline, and the air delivery pipeline is connected to a fan and an air volume regulating valve. In this way, according to the exhaust gas flow rate and the content of combustibles in the exhaust gas, the natural gas and air flow rates can be adjusted to make the exhaust gas burn fully, the control is accurate, and the combustion process is stable; and the airflow rate and flow velocity generated by the exhaust gas introduced from the exhaust gas inlet hole have almost no effect on the normal combustion of the burner, avoiding the exhaust gas flow from blowing out the burner flame.

[0069] It is understandable that the first oven is provided with a first temperature controller for detecting the temperature of the first oven in real time, and the first heating assembly is provided with a first heating controller, which controls the heating power of the burner in the first heating assembly according to the temperature of the first oven, thereby controlling the heat of the flame ejected by the burner in the first heating assembly, so as to keep the temperature of the first oven stable within a set range. The second oven is provided with a second temperature controller for detecting the temperature of the second oven in real time, and the second heating controller controls the heating power of the burner in the second heating assembly according to the temperature of the second oven, thereby controlling the heat of the flame ejected by the burner in the second heating assembly, so as to keep the temperature of the second oven stable within a set range.

[0070] It is understandable that the second oven body has a second exhaust outlet for exhausting the exhaust gas generated by the second oven. Since the exhaust gas generated by the second oven does not contain toxic or harmful substances, no special treatment is required and it can be directly discharged or subjected to conventional simple treatment, which will not be described in detail here.

[0071] like Figures 7 to 10 As shown, in order to verify the effect of using the second heating component to treat the exhaust gas discharged from the first oven, the applicant conducted an experiment. Figure 7 As shown in the figure, the test filter (curled into a cylindrical shape) directly installed at the exhaust outlet of the first oven had a thick layer of residual organic matter accumulated on it after only 24 hours. Figure 8 As shown, the exhaust gas generated by the first oven is sent to the second heating component for combustion treatment before being discharged, and a filter is installed at the discharge port. After 24 hours, the filter is unfolded and only a very small amount of dirt is found, but not Figure 7 The organic matter shown is not the powder after the organic matter is burned. In order to show the combustion effect more clearly, Fig. 9 and Fig.10 As shown, the fine filter was replaced with a coarse filter. One week later, the coarse filter was unfolded, and the powdery substance adhering to the filter could be clearly observed. Moreover, the powdery substance easily fell off the filter when touched, which fully demonstrated that the organic matter contained in the exhaust gas generated by the first oven had been fully burned.

[0072] Based on the state of the burning powder that is easy to fall off, it is relatively convenient to remove it. Therefore, a filter can be added in the hot gas storage chamber to filter the residue after combustion. By vibrating the filter at a regular time, the residual powder after combustion will fall and remain in the hot gas storage chamber. An opening is provided at the bottom of the hot gas storage chamber for removing the residue. The filter setting structure can be flexibly set according to actual needs, and will not be described in detail here.

[0073] The combustion treatment device of the utility model is suitable for treating waste gas with complex components and easy to cause incomplete combustion, such as waste gas generated by a hose line shaping oven.

[0074] It is understandable that the second heating component 21 can be independent of the oven assembly and only serve as a waste gas combustion treatment device for waste gas containing combustibles.

[0075] For scenarios not used in hose line shaping oven assembly, such as Figure 6 As shown, a heat exchanger 23 can also be provided, and the heat delivery pipeline is connected with a heat exchanger, and other liquids or gases that need to be heated are heated by the heat exchanger. In this way, the waste gas heat can also be recycled.

[0076] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes but is not limited to the contents described in the above specific implementation. Any modification that does not deviate from the functional and structural principles of the utility model will be included in the scope of the claims.

Claims

1. An energy-saving and environmentally friendly waste gas combustion treatment device, comprising a burner having an air inlet end and a flame injection end, wherein air is introduced into the air inlet end of the burner, characterized in that: The processing device is provided with a guide wall on one side of the flame injection end of the burner, and a plurality of waste gas introduction holes are opened on the guide wall. The waste gas introduction holes introduce waste gas containing combustibles, and the waste gas is ignited by the flame injected from the flame injection end of the burner. The guide wall is connected with an exhaust diversion structure away from the flame injection end to guide the discharge of hot gas generated by combustion.

2. The energy-saving and environmentally friendly waste gas combustion treatment device according to claim 1 is characterized in that: The exhaust gas drainage structure comprises a hot gas outlet and a drainage pipe connecting the hot gas outlet and the guide wall away from the flame injection end, and the cross-sectional area of ​​the drainage pipe gradually decreases from the guide wall to the hot gas outlet.

3. The energy-saving and environmentally friendly waste gas combustion treatment device according to claim 2 is characterized in that: A flame baffle is provided between the guide wall away from the flame injection end and the drainage pipe, and a vent hole is opened on the flame baffle. The flame baffle is used to accumulate the flame inside the guide wall, and the vent hole allows the hot gas generated by the combustion to flow into the drainage pipe.

4. The energy-saving and environmentally friendly waste gas combustion treatment device according to claim 1 is characterized in that: The guide wall is a bell-mouth structure.

5. The energy-saving and environmentally friendly waste gas combustion treatment device according to claim 4 is characterized in that: A front section, a middle section and a rear section are arranged along the axial direction of the bell mouth structure, and the diameter of the exhaust gas introduction hole in the middle section is larger than that of the front section and the rear section.

6. The energy-saving and environmentally friendly waste gas combustion treatment device according to claim 1 is characterized in that: The length of the guide wall is greater than the jet length of the flame.

7. The energy-saving and environmentally friendly waste gas combustion treatment device according to claim 1 is characterized in that: The exhaust gas introduction holes are in the shape of a circular hole or a rectangular hole; and / or, the exhaust gas introduction holes are arranged in a honeycomb shape.

8. The energy-saving and environmentally friendly waste gas combustion treatment device according to claim 1 is characterized in that: The burner is connected to a natural gas delivery pipeline, and the natural gas delivery pipeline is connected to a manual valve and a solenoid valve.

9. The energy-saving and environmentally friendly waste gas combustion treatment device according to claim 1 is characterized in that: The burner is connected to an air delivery pipeline, and the air delivery pipeline is connected to a fan and an air volume regulating valve.

10. The energy-saving and environmentally friendly waste gas combustion treatment device according to claim 2, characterized in that: The hot gas outlet is connected to a heat transfer pipeline, and the heat transfer pipeline is connected to a heat exchanger.

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