Waste gas treatment equipment for carburizing furnace used for metal product processing

Abstract

The present invention provides an exhaust gas treatment device for a carburizing furnace used for metal product processing, and belongs to the technical field of exhaust gas treatment of carburizing furnaces. The device comprises a machine body, wherein a spray chamber and a combustion chamber are provided inside the machine body, a connecting pipe is provided between the spray chamber and the combustion chamber, and the two chambers are connected through the connecting pipe, an exhaust pipe is provided on the top of the machine body, an air intake pipe is provided on the bottom of the machine body, a connecting plate is installed on the top of the inner side of the machine body, a plurality of exhaust holes are provided on the inner wall of the connecting plate, and a plurality of water mist nozzles are provided on the bottom of the connecting plate. The present invention uses a clamping component and a shaking component to process exhaust gases of different densities in a dust removal bin, improves the singleness of the combustibles entering the combustion chamber, and can fully burn them, thereby avoiding the generation of harmful gases, and avoiding excessive loss of exhaust gas treatment materials, thereby improving the efficiency of exhaust gas treatment, and reducing pollution to the environment, and protecting the health of workers in daily operations.

Description

Technical Field

[0001] The invention relates to the technical field of carburizing furnace waste gas treatment, and in particular to a waste gas treatment device of a carburizing furnace used for metal product processing. Background Art

[0002] During the carburizing furnace production process, carburizing agent needs to be continuously added after the decomposition temperature is reached. After the carburizing agent is decomposed and utilized, waste gas will be produced. The main component is hydrocarbon gas, which needs to be discharged from the furnace body. On the one hand, the waste gas pollutes the environment and harms human health. On the other hand, because the waste gas is flammable, it will burn when it encounters fire after reaching a certain proportion in the air.

[0003] Waste gas treatment devices can save costs and resources in daily production, and can effectively control the emission of waste gas and reduce the pollution of waste gas to the environment. At the same time, the treated waste gas is also a kind of protection for workers in daily operations during daily emissions.

[0004] Chinese Patent Publication No. (CN216481020U) discloses a waste gas treatment device for a pit carburizing furnace. The waste gas generated in the pit carburizing furnace is transported into the combustion chamber through a nozzle, and oxygen is transported into the combustion chamber through a nozzle to provide oxygen for the combustion of the waste gas, so that the waste gas burns more completely. After the waste gas is mixed with oxygen, it is electronically ignited by an electronic igniter to make the waste gas burn in the combustion chamber. The burned gas is transported into the spray chamber through a connecting pipe, and the gas is removed and cooled by water sprayed from the nozzle. The device can effectively burn the waste gas generated by the pit carburizing furnace, avoid the threat of waste gas to the health of workers, reduce the coefficient of danger, improve the convenience and practicality of the use of the pit carburizing furnace, and better meet the actual use needs.

[0005] However, when the exhaust gas treatment device transports the exhaust gas into the combustion chamber through the nozzle, dust accumulates at the nozzle position, which can easily lead to blockage of the nozzle, making it difficult to discharge the exhaust gas. The nozzle needs to be maintained, and the cost of use is high. At the same time, since the ejection position of the oxygen nozzle is fixed, the oxygen is not sprayed evenly in the combustion chamber. Since the combustion chamber is in a semi-sealed state and the oxygen supply is uneven, the exhaust gas in the combustion chamber is not fully burned, thereby generating harmful gas CO. Since the density of CO is relatively small, the CO gas will continue to flow upward and finally be discharged from the exhaust pipe. The body causes toxic gases to cause harm to the environment and the health of workers. Therefore, the present application provides an exhaust gas treatment device for a carburizing furnace for metal product processing to meet the needs. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a waste gas treatment device for a carburizing furnace for metal product processing to solve the problem of existing waste gas treatment devices. When the waste gas is transported into the combustion chamber through the nozzle, dust is easily accumulated at the position of the nozzle, which causes the nozzle to be blocked, making it difficult to discharge the waste gas to be treated. The cost of maintaining the nozzle is high, which leads to increased costs. At the same time, since the position of the oxygen nozzle is fixed, the spraying direction of oxygen in the combustion chamber is fixed, resulting in a single oxygen spraying in the combustion chamber, so that the oxygen cannot be evenly covered in the combustion chamber. In addition, the semi-sealed state inside the combustion chamber leads to insufficient combustion of the waste gas, which causes the breeding of harmful gas CO. Since the density of the harmful gas CO is relatively small, it will continue to flow upward in the furnace. When it reaches the top, it will be discharged from the exhaust pipe together with the treated gas. The discharged harmful gas will cause harm to the environment and the health of the workers.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0008] A waste gas treatment device for a carburizing furnace for processing metal products, comprising a body, wherein a spray chamber and a combustion chamber are arranged inside the body, a connecting pipe is arranged between the spray chamber and the combustion chamber, and the two chambers are connected through the connecting pipe, an exhaust pipe is arranged on the top of the body, an air intake pipe is arranged on the bottom of the body, a connecting plate is installed on the top of the body, a plurality of exhaust holes are arranged on the inner wall of the connecting plate, a plurality of water mist nozzles are arranged on the bottom of the connecting plate, a water collecting box is arranged at the bottom of the spray chamber, a dust removal bin is arranged on the top of the air intake pipe, a dust collecting box is arranged on the bottom end of the inner wall of the dust removal bin, a frame-type activated carbon filter is arranged above the dust collecting box, the edge of the frame-type activated carbon filter is a foldable frame, the frame-type activated carbon filter is composed of a plurality of square frames and elastic wires, and each square frame The frames are stacked in a ladder-like manner, and one end of the elastic wire installed at the bottom between each two adjacent frames is installed at the bottom of the left side of each frame. A jet head is arranged on the top of the dust removal bin, an electronic igniter is arranged on one side of the jet head, a water inlet is arranged on the top of the connecting plate, and an electric push rod is installed on the left side of the body; a clamping assembly, a clamping assembly is arranged at the bottom of the jet head, and the clamping assembly is used to narrow the gap between the frame-type activated carbon filters and gather impurities on the frame-type activated carbon filters; a shaking assembly, a shaking assembly is arranged on one side of the jet head, and the shaking assembly is used to generate intermittent shaking to the inside of the dust removal bin and the jet head; an injection assembly, an injection assembly is arranged on the inner wall of the lower combustion chamber of the body, and the injection assembly is used to inject and transport oxygen from top to bottom.

[0009] Optionally, the clamping assembly includes a piston rack, which is installed at the bottom of the hollow circular tube in the middle of the spray head. The inner diameter of the piston rack is the same as that of the hollow circular tube in the middle of the spray head, and the piston rack operates synchronously with the spray head.

[0010] Optionally, a triple gear is meshedly connected to the right side of the piston rack, sub gears are installed on both sides of the triple gear, and a power push plate is meshedly connected to the bottom of the sub gear.

[0011] Optionally, an edge base is installed at the bottom end of the power push plate, and a rubber pad is installed on the inner wall of the edge base.

[0012] Optionally, the shaking assembly includes a connecting rod, which is installed on one side of the jet head, and a rack seat is installed at the bottom of the right end of the connecting rod.

[0013] Optionally, a main gear is meshedly connected to the right side of the rack seat, and sub gears are symmetrically arranged on both sides of the main gear.

[0014] Optionally, a planetary gear is meshedly connected on the surface of the secondary gear, the diameter of the planetary gear is 1.5 times the diameter of the secondary gear, a trapezoidal pile is installed on the edge of one side of the planetary gear away from the main gear, and the surface of the trapezoidal pile has two groups of cylinders.

[0015] Optionally, a caliper plate is sleeved on the surface of the trapezoidal pile, the diameter of the two holes of the caliper plate is larger than the cylinder on the surface of the trapezoidal pile, and a bidirectional hammer head is installed on one side of the caliper plate, the inner end hammer head of the bidirectional hammer head is close to the edge base, and the other end hammer head is close to the inner wall of the dust removal bin.

[0016] Optionally, the spray assembly includes a support rod, the support rod is installed at the edge of the connecting rod, a round seat is installed on one side of the top of the support rod, and an aerosol nozzle is arranged at the bottom of the round seat.

[0017] Optionally, one end of the support rod is slidably connected to a slide rail groove, and a fixing seat is provided on one side of the support rod.

[0018] Compared with the prior art, the present invention has at least the following beneficial effects:

[0019] In the above scheme, by setting a clamping assembly and utilizing the cooperation between the piston rack, triple gear, power push plate, edge base and rubber pad, the frame-type activated carbon filter can partially adsorb the dust contained in the exhaust gas. At the same time, when the nozzle is spraying, the piston rack operates up and down, and the power generated causes the triple gear to rotate, driving the power push plate to move parallel. At this time, the edge base begins to tighten inward, and drives the rubber pad to tighten the edges on both sides of the frame-type activated carbon filter inward, so that the gap between the frame-type activated carbon filters is reduced, thereby keeping the frame-type activated carbon filter clean and continuously filtering the dust of the high-density exhaust gas in the early stage of the carburizing furnace, avoiding nozzle blockage and making the combustion more complete.

[0020] By setting up a shaking component, using the connecting rod, rack seat, main gear, sub gear, planetary gear, trapezoidal pile, caliper plate and two-way hammer to cooperate with each other, when the jet head is in operation, the two-way hammer operates, one end hammers irregularly on the surface of the clamping component, and the other end hammers on the inner wall of the dust removal bin. The vibration causes the dust on the air holes of the jet head to fall off, and at the same time, the frame-type activated carbon filter is affected by the shaking, so that the dust falls downward into the dust collection box, avoiding the long-term accumulation of dust, which leads to the decline of the dust removal function of the frame-type activated carbon filter, affecting the dust removal effect, and reducing the number of times the frame-type activated carbon filter is replaced, thereby reducing the cost of use.

[0021] By setting up a spray assembly and utilizing the coordination among the support rod, the round seat, the aerosol nozzle, the slide rail groove and the fixed seat, after the exhaust gas has been dust-removed by the clamping assembly and the shaking assembly in the dust removal bin, the support rod is affected by the movement of the spray head and drives the round seat to move in the slide rail groove. At the same time, the aerosol nozzle moves synchronously, so that oxygen is sprayed into the combustion chamber up and down. At the same time, the large-scale movement makes the oxygen more evenly dispersed, thereby providing a guarantee for the full combustion of the exhaust gas, avoiding the generation of toxic gas CO, preventing harm to the environment and workers' health, and saving the cost of exhaust gas treatment consumables, thereby improving the full and reasonable application of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0023] Figure 1 It is a schematic diagram of the main three-dimensional structure of the exhaust gas treatment equipment;

[0024] Figure 2 It is a schematic diagram of the structure of the exhaust gas treatment equipment in a front view and cutaway plane;

[0025] Figure 3 It is a schematic diagram of the three-dimensional structure of the exhaust gas treatment equipment cut from another perspective;

[0026] Figure 4 It is a schematic diagram of the internal three-dimensional structure of the body;

[0027] Figure 5 This is a schematic diagram of the internal three-dimensional structure of the dust removal bin;

[0028] Figure 6 It is a schematic diagram of the three-dimensional structure of the injection assembly;

[0029] Figure 7 It is a three-dimensional structural schematic diagram of the position relationship between the clamping component and the shaking component;

[0030] Figure 8It is a three-dimensional structural schematic diagram of the position relationship between the clamping assembly and the frame-type activated carbon filter;

[0031] Fig. 9 It is a schematic diagram of the three-dimensional structure of the clamping assembly;

[0032] Fig.10 It is a schematic diagram of the three-dimensional structure of the shaking component;

[0033] Fig.11 It is a schematic diagram of the three-dimensional structure of the bidirectional hammer head;

[0034] Fig.12 It is a three-dimensional structural diagram of the position relationship of the planetary gears;

[0035] Fig.13 It is a schematic diagram of the three-dimensional structure of a partial frame-type activated carbon filter and elastic wire.

[0036] Reference numerals:

[0037] 1. Machine body; 2. Connecting pipe; 3. Exhaust pipe; 4. Intake pipe; 5. Connecting plate; 6. Clamping assembly; 61. Piston rack; 62. Triple gear; 63. Power push plate; 64. Edge base; 65. Rubber pad; 7. Shaking assembly; 71. Connecting rod; 72. Rack seat; 73. Main gear; 74. Sub gear; 75. Planetary gear; 76. Trapezoidal pile; 77. Caliper; 78. Two-way hammer; 8. Injection assembly; 81. Support rod; 82. Round seat; 83. Aerosol nozzle; 84. Slide rail groove; 85. Fixed seat; 9. Exhaust hole; 10. Water mist nozzle; 11. Water collecting box; 12. Dust collecting box; 13. Frame-type activated carbon filter; 130. Elastic wire; 14. Injection head; 15. Electronic igniter; 16. Water inlet; 17. Dust removal bin; 18. Electric push rod.

[0038] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0039] The following is a detailed description of an exhaust gas treatment device for a carburizing furnace for metal product processing provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0040] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0041] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0042] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0043] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0044] like Figures 1 to 12As shown, an embodiment of the present invention provides an exhaust gas treatment device for a carburizing furnace for metal product processing, including a body 1, a spray chamber and a combustion chamber are provided inside the body 1, a connecting pipe 2 is provided between the spray chamber and the combustion chamber, and the spray chamber and the combustion chamber are connected through the connecting pipe 2, an exhaust pipe 3 is provided on the top of the body 1, an air intake pipe 4 is provided at the bottom of the body 1, a connecting plate 5 is installed at the top of the body 1, a plurality of exhaust holes 9 are provided on the inner wall of the connecting plate 5, a plurality of water mist nozzles 10 are provided at the bottom of the connecting plate 5, a water collecting box 11 is provided at the bottom of the spray chamber, a dust removal bin 17 is provided at the top of the air intake pipe 4, a dust collecting box 12 is provided at the bottom end of the inner wall of the dust removal bin 17, a frame-type activated carbon filter 13 is provided above the dust collecting box 12, the edge of the frame-type activated carbon filter 13 is a foldable frame, the frame-type activated carbon filter 13 is composed of a plurality of square frames and elastic wires 130, and each square The frames are stacked in a ladder-like manner, and one end of the elastic wire 130 installed at the bottom between each two adjacent frames is installed at the bottom of the left side of each frame. A nozzle 14 is arranged on the top of the dust removal bin 17, and an electronic igniter 15 is arranged on one side of the nozzle 14. A water inlet 16 is arranged on the top of the connecting plate 5, and an electric push rod 18 is installed on the left side of the body 1; a clamping assembly 6 is arranged at the bottom of the nozzle 14, and the clamping assembly 6 is used to narrow the gap between the frame-type activated carbon filter 13 and gather impurities on the frame-type activated carbon filter 13; a shaking assembly 7 is arranged on one side of the nozzle 14, and the shaking assembly 7 is used to generate intermittent shaking to the inside of the dust removal bin 17 and the nozzle 14; an injection assembly 8 is arranged on the inner wall of the lower combustion chamber of the body 1, and the injection assembly 8 is used to inject and transport oxygen from top to bottom.

[0045] Embodiment 1:

[0046] As an implementation method in this embodiment, Figures 7 to 9 As shown, the clamping assembly 6 includes a piston rack 61, which is installed at the bottom of the hollow circular tube in the middle of the nozzle 14. The inside of the piston rack 61 has the same diameter as the hollow circular tube in the middle of the nozzle 14, and the piston rack 61 operates synchronously with the nozzle 14. The right side of the piston rack 61 is meshed with a triple gear 62, and sub gears 74 are installed on both sides of the triple gear 62. The bottom of the sub gear 74 is meshed with a power push plate 63, and the bottom end of the power push plate 63 is installed with an edge base 64, and the inner wall of the edge base 64 is installed with a rubber pad 65.

[0047] In this embodiment, first, the water inlet 16 of the body 1 is connected to an external water source, and water is sprayed in the spray chamber through the water mist nozzle 10. The water in the chamber falls into the water collecting box 11 and is discharged outwardly. The air inlet pipe 4 is connected to the air outlet of the carburizing furnace. The exhaust gas flows into the dust removal bin 17 through the air inlet pipe 4 and passes through the frame-type activated carbon filter 13. At the same time, the inner opening of the piston rack 61 is the same as the diameter of the hollow circular tube in the middle of the nozzle 14. While maintaining the exhaust gas circulation, it is connected to the nozzle 14 through the piston rack 61. The staff starts the electric push rod 18 to drive the nozzle 14 to perform indirect lifting and lowering movements. When the nozzle 14 sprays exhaust gas into the combustion chamber, the nozzle 14 performs piston movement up and down, driving the piston rack 61 to perform piston movement synchronously. When the piston rack 61 operates, it drives the meshing three-link gear 62 to rotate. When the three-link gear 62 rotates, When the power push plate 63 is moved in parallel, the edge base 64 installed at the bottom starts to move, driving the rubber pad 65 on the inner wall of the edge base 64 to tighten inward, and acting on the edge frames on both sides of the frame-type activated carbon filter 13, the frame-type activated carbon filter 13 is squeezed by the clamping assembly 6, and the edge bands on both sides are folded, so that the frame-type activated carbon filter 13 is tightened from both ends to the center. Since the filter layer of the frame-type activated carbon filter 13 is composed of a plurality of grids and elastic steel wires stacked in a stepped manner, the internal gap of the frame-type activated carbon filter 13 will be reduced at this time, and the dust adsorbed by the dust removal on the surface of the filter layer of the frame-type activated carbon filter 13 will be rubbed and fall off, thereby maintaining the cleanliness of the frame-type activated carbon filter 13, improving the dust removal effect, avoiding the long-term accumulation of dust that leads to a reduction in the dust removal effect, and preventing the nozzle 14 from being blocked when ejecting exhaust gas in the combustion chamber.

[0048] Embodiment 2:

[0049] As an implementation method in this embodiment, Figures 10 to 13 As shown, the shaking assembly 7 includes a connecting rod 71, which is installed on one side of the jet head 14, and a rack seat 72 is installed at the bottom of the right end of the connecting rod 71, and the right side of the rack seat 72 is meshed with a main gear 73, and sub-gears 74 are symmetrically arranged on both sides of the main gear 73. The surface of the sub-gear 74 is meshed with a planetary gear 75, and the diameter of the planetary gear 75 is 1.5 times the diameter of the sub-gear 74. A trapezoidal pile 76 is installed on the edge of the planetary gear 75 away from the main gear 73. The surface of the trapezoidal pile 76 has two groups of cylinders, and a caliper piece 77 is sleeved on the surface of the trapezoidal pile 76. The diameters of the two holes of the caliper piece 77 are larger than the cylinders on the surface of the trapezoidal pile 76, and a bidirectional hammer head 78 is installed on one side of the caliper piece 77. The inner end hammer head of the bidirectional hammer head 78 is close to the edge base 64, and the other end hammer head is close to the inner wall of the dust removal bin 17.

[0050] In this embodiment, when the jet head 14 is in operation, the connecting rod 71 performs a lifting movement. When the connecting rod 71 operates, it drives the rack seat 72 to perform a lifting operation. The rack seat 72 operates and then drives the main gear 73 to rotate. When the main gear 73 rotates, it drives the two sets of sub-gears 74 to rotate. Since the sub-gear 74 rotates relatively in the planetary gear 75 that is 1.5 times larger than itself, and since the planetary gear 75 and the sub-gear 74 are not completely meshed, when the sub-gear 74 rotates, it will be driven to rise to a certain height on the inner wall of the planetary gear 75 and then fall after sliding teeth, resulting in a jumping phenomenon, forming an irregular motion, driving the caliper piece 77 on the trapezoidal pile 76 to jump. When the caliper piece 77 moves, it drives the bidirectional hammer head 78 to vibrate and produce hammering. One end of the bidirectional hammer head 78 performs irregular hammering on the surface of the clamping assembly 6, and the other end The inner wall of 17 is hammered, and the vibration generated by the hammering causes the dust on the air holes of the nozzle 14 to fall off, and at the same time, the frame-type activated carbon filter 13 of the dust removal operation is vibrated. Affected by the vibration of the hammering, the dust accumulated by the clamping component 6 falls downward into the dust collecting box 12, avoiding the accumulation caused by long-term dust removal, resulting in the decline of the dust removal function of the frame-type activated carbon filter 13 and affecting the dust removal effect. At the same time, it is avoided that the frame-type activated carbon filter 13 is frequently replaced, which is beneficial to reducing the use cost. After the exhaust gas passes through the dust removal effect of the dust removal bin 17, the internal dust is reduced and the combustible material is single, which provides favorable conditions for its full combustion. The planetary gear 75 and the sub-gear 74 are set to manganese steel with wear-resistant properties (the caliper plate 77 has a certain clearance with the cylinder on the trapezoidal pile 76, which can prevent the planetary gear 75 and the sub-gear 74 from being damaged by excessive friction).

[0051] Embodiment 3:

[0052] As an implementation method in this embodiment, Figures 3 to 6 As shown, the spray assembly 8 includes a support rod 81, which is installed at the edge of the connecting rod 71, a round seat 82 is installed on one side of the top of the support rod 81, an aerosol nozzle 83 is arranged at the bottom of the round seat 82, one end of the support rod 81 is slidably connected to a slide rail groove 84, and a fixed seat 85 is arranged on one side of the support rod 81.

[0053] In this embodiment, after the exhaust gas is injected into the combustion chamber through the nozzle 14, one end of the support rod 81 follows the shaking assembly 7 to move up and down in the fixed seat 85, and the other end moves in the slide rail groove 84. When the support rod 81 moves, the round seat 82 moves synchronously. When the round seat 82 moves, the aerosol nozzle 83 moves accordingly, so that oxygen is sprayed into the burner chamber from high to low, and under the effect of the density of oxygen itself, it is integrated into the exhaust gas from top to bottom, and then the electronic igniter 15 is started to make the exhaust gas fully burn inside the combustion chamber, and then burn. The waste gas flows into the spray chamber through the connecting pipe 2 for secondary dust removal. The water mist nozzle 10 at the bottom of the connecting plate 5 sprays water to remove dust from the waste gas. At the same time, the waste gas after dust removal flows to the top through the exhaust hole 9, and then flows out of the body 1 through the exhaust pipe 3 and is discharged into the air. The waste gas is fully burned in the combustion chamber, avoiding the generation of toxic gases. At the same time, the cost of waste gas treatment consumables is saved, and the foundation is laid for the full and reasonable use of resources. While improving work efficiency, it reduces pollution to the environment and protects the health of daily workers.

[0054] The working principle provided by the present invention is that the water inlet 16 of the machine body 1 is first connected to an external water source, and water is sprayed in the spray chamber through the water mist nozzle 10. The water in the chamber falls into the water collecting box 11 and is discharged outward. The air inlet pipe 4 is connected to the air outlet of the carburizing furnace. The exhaust gas flows into the dust removal bin 17 through the air inlet pipe 4 and passes through the frame-type activated carbon filter 13. At the same time, the inner opening of the piston rack 61 is the same as the diameter of the hollow circular tube in the middle of the nozzle 14. While keeping the exhaust gas flowing, it is connected to the nozzle 14 through the piston rack 61. The staff starts the electric push rod 18 to drive the nozzle 14 to perform indirect lifting and lowering movements. Then the nozzle 14 sprays the exhaust gas into the combustion chamber. When the air is inflated, the jet head 14 performs piston movement up and down, driving the piston rack 61 to perform piston movement synchronously. When the piston rack 61 is operating, it drives the meshing three-link gear 62 to rotate. When the three-link gear 62 rotates, it drives the power push plate 63 to move parallel. When the power push plate 63 moves parallel, the edge base 64 installed at the bottom starts to move, driving the rubber pad 65 on the inner wall of the edge base 64 to tighten inwardly. When acting on the edge frames on both sides of the frame-type activated carbon filter 13, the frame-type activated carbon filter 13 is squeezed by the clamping assembly 6, and the edge bands on both sides are folded, so that the frame-type activated carbon filter 13 is tightened from both ends to the center.

[0055] Since the filter layer of the frame-type activated carbon filter 13 is composed of a plurality of grids and elastic steel wires stacked in a stepped manner, the internal gap of the frame-type activated carbon filter 13 will be reduced accordingly, and the dust adsorbed by the dust removal on the surface of the filter layer of the frame-type activated carbon filter 13 will be rubbed and fall off, thereby maintaining the cleanliness of the frame-type activated carbon filter 13, improving the dust removal effect, avoiding the long-term accumulation of dust and causing the dust removal effect to be reduced, and preventing the nozzle 14 from being blocked when the exhaust gas is ejected in the combustion chamber. When the nozzle 14 is in operation, the connecting rod 71 performs a lifting movement. When the connecting rod 71 operates, it drives the rack seat 72 to perform a lifting operation. When the rack seat 72 operates, it drives the main gear 73 to rotate. When the main gear 73 rotates, it drives the two sets of sub-gears 74 to rotate. Since the sub-gear 74 rotates relatively in the planetary gear 75 that is 1.5 times its own size, and since the planetary gear 75 and the sub-gear 74 are not fully meshed, when the sub-gear 74 rotates, it will be driven to rise to a certain height on the inner wall of the planetary gear 75. The degree of sliding and falling of the teeth will cause jumping to form irregular motion, which drives the caliper piece 77 on the trapezoidal pile 76 to jump. When the caliper piece 77 is active, it drives the two-way hammer head 78 to vibrate and produce hammering. (The caliper piece 77 has a certain clearance with the cylinder on the trapezoidal pile 76 to prevent the planetary gear 75 and the pinion 74 from being damaged by excessive friction). One end of the two-way hammer head 78 hammers the surface of the clamping assembly 6 irregularly, and the other end hammers the inner wall of the dust removal bin 17. The vibration generated by the hammering causes the dust on the air holes of the jet head 14 to fall off, and at the same time, the frame-type activated carbon filter 13 of the dust removal operation is vibrated. Affected by the shaking of the hammering, the dust accumulated by the clamping assembly 6 falls downward into the dust collecting box 12, avoiding the accumulation caused by long-term dust removal, resulting in the decline of the dust removal function of the frame-type activated carbon filter screen 13, affecting the dust removal effect, and avoiding the frequent replacement of the frame-type activated carbon filter screen 13, which is conducive to reducing the use cost.

[0056] After the exhaust gas passes through the dust removal effect of the dust removal bin 17, the internal dust is reduced and the combustibles are single, which provides favorable conditions for its full combustion. When the exhaust gas is sprayed into the combustion chamber through the nozzle 14, one end of the support rod 81 follows the shaking component 7 to move up and down in the fixed seat 85, and the other end moves in the slide rail groove 84. When the support rod 81 moves, the round seat 82 moves synchronously. When the round seat 82 moves, the aerosol nozzle 83 moves accordingly, so that oxygen is sprayed from high to low into the burner cavity, and under the effect of the oxygen's own density, it is integrated into the exhaust gas from top to bottom, and then the electronic igniter 15 is started. , so that the exhaust gas is fully burned inside the combustion chamber, and then the burned exhaust gas flows into the spray chamber through the connecting pipe 2 for secondary dust removal operation, and the water mist nozzle 10 at the bottom of the connecting plate 5 sprays water to remove dust from the exhaust gas, and at the same time, the exhaust gas after dust removal flows to the top through the exhaust hole 9, and then flows out of the body 1 through the exhaust pipe 3 and is discharged into the air. The exhaust gas is fully burned in the combustion chamber, avoiding the generation of toxic gases, saving the cost of exhaust gas treatment consumables, and laying the foundation for the full and reasonable use of resources, improving work efficiency, reducing pollution to the environment, and protecting the health of daily workers.

[0057] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0058] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An exhaust gas treatment device for a carburizing furnace for metal product processing, characterized in that: The machine body comprises a spray chamber and a combustion chamber, a connecting pipe is provided between the spray chamber and the combustion chamber, and the spray chamber and the combustion chamber are connected through the connecting pipe, an exhaust pipe is provided on the top of the machine body, an air intake pipe is provided on the bottom of the machine body, a connecting plate is installed on the top of the inner part of the machine body, a plurality of exhaust holes are provided on the inner wall of the connecting plate, a plurality of water mist nozzles are provided on the bottom of the connecting plate, a water collecting tank is provided at the bottom of the spray chamber, and a dust removal bin is provided on the top of the air intake pipe; A dust collecting box is provided at the bottom end of the inner wall of the dust collecting bin, a frame-type activated carbon filter is provided above the dust collecting box, the edge of the frame-type activated carbon filter is a foldable frame, the frame-type activated carbon filter is composed of a plurality of square frames and elastic wires, and each square frame is stacked in a ladder-like manner, one end of the elastic wire installed at the bottom between each two adjacent square frames is installed at the bottom of the left side of each square frame, a jet head is provided at the top of the dust collecting bin, an electronic igniter is provided on one side of the jet head, a water inlet is provided at the top of the connecting plate, and an electric push rod is installed on the left side of the machine body; A clamping assembly is provided at the bottom of the jet head, and the clamping assembly is used to reduce the gap between the frame-type activated carbon filters and gather impurities on the frame-type activated carbon filters; A shaking component is provided on one side of the nozzle, and the shaking component is used to generate intermittent shaking of the interior of the dust removal bin and the nozzle; An injection assembly is provided on the inner wall of the lower combustion chamber of the engine body, and the injection assembly is used to inject and transport oxygen from top to bottom.

2. The exhaust gas treatment equipment of the carburizing furnace for metal product processing according to claim 1, characterized in that: The clamping assembly comprises a piston rack, which is installed at the bottom of the hollow round tube in the middle of the spray head. The inner diameter of the piston rack is the same as that of the hollow round tube in the middle of the spray head, and the piston rack operates synchronously with the spray head.

3. The exhaust gas treatment equipment of the carburizing furnace for metal product processing according to claim 2, characterized in that: The right side of the piston rack is meshed with a triple gear, and sub gears are installed on both sides of the triple gear. The bottom of the sub gear is meshed with a power push plate.

4. The exhaust gas treatment equipment for a carburizing furnace for metal product processing according to claim 3, characterized in that: An edge base is installed at the bottom end of the power push plate, and a rubber pad is installed on the inner wall of the edge base.

5. The exhaust gas treatment equipment of the carburizing furnace for metal product processing according to claim 1, characterized in that: The shaking assembly includes a connecting rod, which is installed on one side of the jet head, and a rack seat is installed at the bottom of the right end of the connecting rod.

6. The exhaust gas treatment equipment for a carburizing furnace for metal product processing according to claim 5, characterized in that: The right side of the rack seat is meshed with a main gear, and sub gears are symmetrically arranged on both sides of the main gear.

7. The exhaust gas treatment equipment for a carburizing furnace for metal product processing according to claim 6, characterized in that: The surface of the secondary gear is meshed with a planetary gear, the diameter of the planetary gear is 1.5 times the diameter of the secondary gear, and a trapezoidal pile is installed on the edge of one side of the planetary gear away from the main gear, and the surface of the trapezoidal pile has two groups of cylinders.

8. The exhaust gas treatment equipment of the carburizing furnace for metal product processing according to claim 7, characterized in that: A caliper plate is sleeved on the surface of the trapezoidal pile, and the diameters of the two holes of the caliper plate are larger than the cylinder on the surface of the trapezoidal pile. A bidirectional hammer head is installed on one side of the caliper plate, and the inner end hammer head of the bidirectional hammer head is close to the edge base, and the other end hammer head is close to the inner wall of the dust removal bin.

9. The exhaust gas treatment equipment of the carburizing furnace for metal product processing according to claim 1, characterized in that: The spray assembly comprises a support rod, which is installed at the edge of the connecting rod. A round seat is installed on one side of the top of the support rod, and an aerosol nozzle is arranged at the bottom of the round seat.

10. The exhaust gas treatment equipment of the carburizing furnace for metal product processing according to claim 9, characterized in that: One end of the support rod is slidably connected to a slide rail groove, and one side of the support rod is provided with a fixing seat.

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