Safety exhaust device of hazardous waste secondary combustion chamber
By combining the exhaust pipe and the buffer cylinder in the design, and adjusting the opening of the air hole to open the buffer cover, the safety problem of emergency exhaust in the hazardous waste incineration system is solved, equipment damage is reduced, and rapid and safe exhaust is achieved.
Patent Information
- Application Number
- CN202423223169.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-12-26
AI Technical Summary
In emergency situations, existing hazardous waste incineration systems cannot safely discharge high-temperature flue gas, which can easily lead to safety accidents such as boiler dry burning and baghouse burning. In addition, existing explosion-proof covers are easily damaged when opened quickly.
A safety exhaust device for the secondary combustion chamber of hazardous waste was designed, including an exhaust pipe, a cover plate, and a buffer cylinder. The opening of the vent is adjusted by a piston rod driving an adjusting component to gradually increase the damping. The opening process of the buffer cover plate ensures rapid exhaust and reduces impact.
It enables the rapid and safe discharge of high-temperature flue gas in emergency situations, reduces impact damage when the cover is opened, and protects the safety of subsequent equipment.
Smart Images
Figure CN223726359U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of environmental protection equipment, more particularly to a dangerous waste two combustion chamber safety exhaust device. BACKGROUND
[0002] With the development of industry, a large number of hazardous waste increases. And incineration method can realize the resource, reduction and harmlessness in the treatment process when treating hazardous waste. At present, the domestic hazardous waste incineration system usually includes a feeding system, a rotary kiln, a waste heat boiler, a quench tower, a flue gas purification system, an induced draft fan, a chimney and the like. The whole system, under normal working conditions, the flue gas generated by incineration produces negative pressure when the induced draft fan at the tail of the system device operates, so that the flue gas flows from the rotary kiln into the two combustion chamber, enters the waste heat boiler→quench tower→venturi reactor→bag filter→washing tower→depletion reactor→induced draft fan→chimney and is discharged into the atmosphere.
[0003] When explosion occurs in the rotary kiln or positive pressure or water loss, power loss and gas loss occur in the two combustion chamber or the waste heat boiler, the high-temperature flue gas generated by incineration cannot be discharged from the chimney through the normal incineration system and pipelines and equipment, and if the high-temperature flue gas directly enters the rear equipment of the two combustion chamber, it will cause safety accidents and failure losses such as dry burning of the boiler, bag burning and washing tower burning. Therefore, a safety exhaust device needs to be arranged on the two combustion chamber to close the passage between the two combustion chamber and the rear equipment in an emergency, so that the high-temperature flue gas is discharged from the safety exhaust device to protect the subsequent equipment.
[0004] Some existing safety exhaust devices are mainly composed of explosion-proof cover plates, which are rotationally arranged. When the pressure in the two combustion chamber is too large, the explosion-proof cover plates are opened or actively opened. However, in order to quickly open the explosion-proof cover plates, the damping is usually small, so that the explosion-proof cover plates are subjected to a large impact when being opened, resulting in damage to the explosion-proof cover plates. UTILITY MODEL CONTENTS
[0005] The utility model provides a kind of dangerous waste two combustion chamber safety exhaust device, to solve the technical problem proposed in the above background technique.
[0006] To achieve the above object, the technical scheme adopted by the utility model is as follows: a kind of dangerous waste two combustion chamber safety exhaust device is provided, comprising:
[0007] The smoke exhaust pipe is vertically arranged and is adapted to be arranged on the top of the two combustion chamber, and the lower end is connected and communicated with the two combustion chamber;
[0008] The cover plate is sealed to the upper side of the smoke exhaust pipe, and the cover plate is rotationally connected with the smoke exhaust pipe;And
[0009] A buffer cylinder is arranged outside the exhaust pipe, one end of which is hinged to the exhaust pipe and the other end is hinged to the cover plate, and is used to buffer the cover plate when the cover plate is opened.
[0010] The buffer cylinder comprises:
[0011] A first cylinder body is hinged to the exhaust pipe, a first air hole is arranged at the bottom of the first cylinder body, and a second air hole is arranged at the top of the first cylinder body;
[0012] A first piston is slidably arranged in the first cylinder body;
[0013] A piston rod is connected to one end of the first piston and extends out of the first cylinder body and is hinged to the cover plate; and
[0014] An adjusting member is connected to the first piston and is used to adjust the opening degree of the first air hole according to the sliding of the first piston, and the opening degree of the first air hole decreases as the first piston slides to the bottom of the first cylinder body.
[0015] In a possible implementation manner of the hazardous waste two-burner safety exhaust device, the adjusting member is in the shape of a rod, and the diameter of the adjusting member gradually decreases from one end connected to the first piston to the other end away from the first piston.
[0016] In a possible implementation manner of the hazardous waste two-burner safety exhaust device, the adjusting member is a conical or stepped rod.
[0017] In a possible implementation manner of the hazardous waste two-burner safety exhaust device, the adjusting member is provided with a guide rib in the axial direction, and the guide rib is in sliding cooperation with the first air hole on the outside.
[0018] In a possible implementation manner of the hazardous waste two-burner safety exhaust device, the adjusting member is provided with at least three guide ribs in the circumferential direction.
[0019] In a possible implementation manner of the hazardous waste two-burner safety exhaust device, a first control valve is further arranged, the first control valve is in communication with the second air hole of the first cylinder body through a pipeline and is adapted to be in communication with a gas source or the atmosphere, and is used to make the gas source or the atmosphere in communication with the second air hole of the first cylinder body.
[0020] In a possible implementation manner of the hazardous waste two-burner safety exhaust device, a reset assembly is further arranged, the reset assembly is connected to the buffer cylinder or the cover plate and is used to drive the buffer cylinder and the cover plate to reset.
[0021] In a possible implementation manner of the dangerous waste two-burner safety exhaust device, the first piston is internally embedded with a first magnet, and the reset assembly comprises:
[0022] A second cylinder body is arranged outside the first cylinder body and is connected with the first cylinder body, the bottom of the second cylinder body is provided with a third gas hole, and the top of the second cylinder body is provided with a fourth gas hole.
[0023] A second piston is slidably arranged in the second cylinder body, and the second piston is internally embedded with a second magnet.
[0024] A second control valve is in communication with the third gas hole of the second cylinder body through a pipeline and is adapted to be in communication with a gas source or external atmosphere, so as to make the gas source or external atmosphere in communication with the third gas hole of the second cylinder body.
[0025] The dangerous waste two-burner safety exhaust device has the following beneficial effects: compared with the prior art, in the process of opening the cover plate, the first piston and the adjusting piece are driven to move downwards by the piston rod, in this process, the opening degree of the first gas hole gradually decreases, and the damping gradually increases, that is, when the cover plate is just opened, the opening degree of the first gas hole is large, and the damping is small, so that the cover plate can be quickly opened, and high-temperature flue gas can be discharged in time; then, the damping gradually increases, the kinetic energy of the cover plate is effectively absorbed, and the impact on the cover plate when the cover plate is opened to the maximum angle is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0026] Figure 1 A front view structural schematic diagram of the dangerous waste two-burner safety exhaust device is provided for the embodiment of the utility model.
[0027] Figure 2 A top view structural schematic diagram of the dangerous waste two-burner safety exhaust device is provided for the embodiment of the utility model.
[0028] Figure 3 A sectional view structure along line A-A is provided for the embodiment of the utility model. Figure 2
[0029] Figure 4 A three-dimensional structural schematic diagram of the first piston, the piston rod and the adjusting piece in the dangerous waste two-burner safety exhaust device is provided for the embodiment of the utility model.
[0030] MARKS OF THE DRAWINGS:
[0031] 10, smoke exhaust pipe; 20, cover plate; 31, first cylinder body; 311, second gas hole; 32, first piston;
[0032] 321, first magnet; 33, piston rod; 34, adjusting piece; 341, guide rib; 51, second cylinder body;
[0033] 511, third air hole; 512, fourth air hole; 52, second piston; 521, second magnet. DETAILED DESCRIPTION
[0034] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are merely intended to explain the present application, and are not intended to limit the present application.
[0035] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.
[0036] It should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise, and it should be understood that, when the terms "comprise" and / or "include" are used in the specification, there is a presence of the features, steps, operations, devices, components and / or combinations thereof.
[0037] Unless specifically stated otherwise, the relative arrangements of the components and steps illustrated in these embodiments and the numerical expressions and values set forth herein are not limiting of the scope of the present application. It should be understood that the various parts of the drawings are not necessarily drawn to scale, and that, for the purpose of convenience and clarity, not all components can be shown in a given figure. Techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but rather can be assumed to be known by those of ordinary skill in the art. In the examples shown and discussed herein, any specific values should be interpreted as merely illustrative, and not as a limitation on the scope of the exemplary embodiments. Thus, other examples of the exemplary embodiments can have different values. It is noted that like references and labels can be used to denote like items throughout the drawings, and thus, once any part is defined in one drawing, it should not be necessary to further discuss it in subsequent drawings.
[0038] In the description of the present application, it should be understood that the orientation words such as "front, back, up, down, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicated orientation or position relationship are generally based on the orientation or position relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, without making the opposite statement, these orientation words do not indicate and imply that the indicated device or element must have a particular orientation or be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the scope of protection of the present application; the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.
[0039] For the convenience of description, spatial relative terms such as "over", "above", "upper surface", "upper" and the like can be used herein to describe the spatial position relationship of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawing is inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways, and the spatial relative description used herein is interpreted accordingly.
[0040] In addition, it should be noted that the use of "first", "second" and the like to define parts is only for the convenience of distinguishing the corresponding parts, and the above words have no special meaning unless otherwise stated, therefore it cannot be understood as a limitation on the scope of protection of the present application.
[0041] Please refer to Figures 1 to 4 , now the hazardous waste two combustion chamber safety exhaust device provided by the utility model will be described. The hazardous waste two combustion chamber safety exhaust device comprises a smoke exhaust pipe 10, a cover plate 20 and a buffer cylinder, the smoke exhaust pipe 10 is vertically arranged and is adapted to be arranged at the top of the two combustion chamber, the lower end is connected with the two combustion chamber and is in communication; the cover plate 20 is sealingly arranged on the upper side of the smoke exhaust pipe 10, and the cover plate 20 is rotatably connected with the smoke exhaust pipe 10; the buffer cylinder is arranged outside the smoke exhaust pipe 10, one end of the buffer cylinder is hingedly connected with the smoke exhaust pipe 10, and the other end of the buffer cylinder is hingedly connected with the cover plate 20, and the buffer cylinder is used for buffering the cover plate 20 when the cover plate 20 is opened.
[0042] The buffer cylinder comprises a first cylinder body 31, a first piston 32, a piston rod 33 and an adjusting piece 34, the first cylinder body 31 is hinged with the smoke exhaust pipe 10, the first cylinder body 31 is provided with a first air hole at the bottom and a second air hole 311 at the top, the first piston 32 is slidingly arranged in the first cylinder body 31, one end of the piston rod 33 is connected with the first piston 32 and the other end of the piston rod 33 extends out of the first cylinder body 31 and is hinged with the cover plate 20, and the adjusting piece 34 is connected with the first piston 32 and is used for adjusting the opening degree of the first air hole along with the sliding of the first piston 32, and the opening degree of the first air hole is reduced along with the sliding of the first piston 32 to the bottom of the first cylinder body 31.
[0043] It should be noted that the cover plate 20 is a conventional explosion-proof cover plate 20, which is heavy, and is sealed with the smoke exhaust pipe 10 by the dead weight and the negative pressure environment in the second combustion chamber.
[0044] When an emergency such as deflagration occurs in the second combustion chamber, the cover plate 20 is opened to perform emergency exhaust to ensure safety.
[0045] The hazardous waste second combustion chamber safety exhaust device has the advantages that, compared with the prior art, in the process of opening the cover plate 20, the first piston 32 and the adjusting piece 34 are driven to move downward by the piston rod 33, in this process, the opening degree of the first air hole is gradually reduced and the damping is gradually increased, that is, when the cover plate 20 is just opened, the opening degree of the first air hole is large and the damping is small, so that the cover plate 20 can be quickly opened and high-temperature flue gas can be timely exhausted, and then the damping is gradually increased to effectively absorb the kinetic energy of the cover plate 20 and reduce the impact of the cover plate 20 when being opened to the maximum angle.
[0046] As shown in Figure 3 and Figure 4 , in a specific embodiment of the hazardous waste second combustion chamber safety exhaust device provided by the embodiment of the utility model, the adjusting piece 34 is in the shape of a rod, and the diameter of the adjusting piece 34 gradually decreases from one end connected with the first piston 32 to the other end away from the first piston 32, so that the opening degree of the first air hole gradually decreases and the damping gradually increases in the process of the cover plate 20 being opened, which can ensure that the cover plate 20 can be quickly opened and reduce the impact of the cover plate 20 when being opened to the maximum angle.
[0047] As shown in Figure 3 and Figure 4 , in a specific embodiment of the hazardous waste second combustion chamber safety exhaust device provided by the embodiment of the utility model, the adjusting piece 34 is in the shape of a rod.
[0048] Preferably, the adjusting piece 34 is in the shape of a tapered rod, so that the damping increases gently.
[0049] As shown in Figure 4As shown, in a specific embodiment of the hazardous waste secondary combustion chamber safety exhaust device provided in this utility model embodiment, the adjusting member 34 is provided with a guide rib 341 along the axial direction. The outer side of the guide rib 341 slides with the first air hole to guide and limit the adjusting member 34, so that the adjusting member 34 slides more accurately and stably.
[0050] like Figure 1 and Figure 2 As shown, in a specific embodiment of the hazardous waste secondary combustion chamber safety exhaust device provided in this utility model embodiment, the adjusting member 34 is provided with at least three guide ribs 341 along the circumferential direction to fully restrict the radial degree of freedom of the adjusting member 34.
[0051] like Figure 1 and Figure 3 As shown, in a specific embodiment of the hazardous waste secondary combustion chamber safety exhaust device provided in this utility model embodiment, a first control valve is also included. The first control valve is connected to the second air port 311 of the first cylinder 31 through a pipeline and is adapted to be connected to a gas source or the outside atmosphere, so as to connect the gas source or the outside atmosphere to the second air port 311 of the first cylinder 31.
[0052] It should be noted that the air source is an air pump or a workshop air supply system; in some cases, it is necessary to actively open the cover plate 20. Therefore, a first control valve is set up so that when the cover plate 20 needs to be passively opened, the first control valve connects the first air hole to the outside; when the cover plate 20 needs to be actively opened, the first control valve connects the first air hole to the air source, allowing gas to enter the rod chamber of the first cylinder 31, driving the piston rod 33 to slide downward and open the cover plate 20.
[0053] like Figure 1 and Figure 3 As shown, in a specific embodiment of the hazardous waste secondary combustion chamber safety exhaust device provided in this utility model, a reset component is also included. The reset component is connected to the buffer cylinder or the cover plate 20 and is used to drive the buffer cylinder and the cover plate 20 to reset.
[0054] Specifically, such as Figure 1 and Figure 3As shown, in a specific embodiment of the hazardous waste two-burner safety exhaust device provided by the embodiment of the utility model, the first magnet 321 is embedded in the first piston 32, the reset assembly comprises a second cylinder body 51, a second piston 52 and a third control valve, the second cylinder body 51 is arranged outside the first cylinder body 31 and is connected with the first cylinder body 31, the bottom is provided with a third air hole 511, and the top is provided with a fourth air hole 512; the second piston 52 is slidingly arranged in the second cylinder body 51, and the second magnet 521 is embedded in the second piston 52; the second control valve is communicated with the third air hole 511 of the second cylinder body 51 through a pipeline and is adapted to be communicated with a gas source or external atmosphere, so as to communicate the gas source or external atmosphere with the third air hole 511 of the second cylinder body 51.
[0055] It should be noted that the first magnet 321 and the second magnet 521 attract each other; in the closed state of the cover plate 20, the second control valve controls the third air hole 511 to be communicated with the external atmosphere, so that in the process of opening the cover plate 20, the first piston 32 can drive the second piston 52 to move synchronously through the first magnet 321 and the second magnet 521 which attract each other. When the cover plate 20 fails to reset by gravity, the cover plate 20 needs to be actively driven to reset, at this time, the second control valve controls the third air hole 511 to be communicated with the gas source, drives the second piston 52 to slide upward, and drives the first piston 32 to move synchronously through the first magnet 321 and the second magnet 521 which attract each other, so as to reset the cover plate 20.
[0056] Among them, the first control valve and the second control valve are both existing two-position three-way valves.
[0057] The above only describes preferred embodiments of the utility model and is not used to limit the utility model, any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A hazardous waste dual-chamber safe exhaust apparatus, characterized by, The application relates to a smoke exhaust pipe, which is vertically arranged and is arranged on the top of a secondary combustion chamber and is connected with the secondary combustion chamber at the lower end. A cover plate is arranged on the upper side of the smoke exhaust pipe and is rotatably connected with the smoke exhaust pipe. A buffer cylinder is arranged outside the smoke exhaust pipe, is hingedly connected with the smoke exhaust pipe at one end and is hingedly connected with the cover plate at the other end, and is used for buffering the cover plate when the cover plate is opened. The buffer cylinder comprises a first cylinder body which is hingedly connected with the smoke exhaust pipe, a first gas hole is arranged at the bottom of the first cylinder body, and a second gas hole is arranged at the top of the first cylinder body. A first piston is slidably arranged in the first cylinder body. A piston rod is connected with the first piston at one end and is hingedly connected with the cover plate at the other end. An adjusting member is connected with the first piston and is used for adjusting the opening degree of the first gas hole according to the sliding of the first piston. The adjusting member is in the shape of a rod, and the diameter of the adjusting member gradually decreases from the end connected with the first piston to the end away from the first piston. The adjusting member is in the shape of a tapered rod or a stepped rod. The adjusting member is axially provided with guide ribs, and the guide ribs are slidably matched with the first gas hole.
2. The hazardous waste dual-chamber venting apparatus of claim 1, wherein The adjusting member is circumferentially provided with at least three guide ribs.
3. The hazardous waste incinerator double combustion chamber safe exhaust apparatus as claimed in claim 2, wherein A first control valve is connected with the second gas hole of the first cylinder body through a pipeline and is adapted to be connected with a gas source or external atmosphere, so as to connect the gas source or external atmosphere with the second gas hole of the first cylinder body.
4. The hazardous waste incinerator double combustion chamber safe exhaust apparatus as claimed in claim 2, wherein A reset assembly is connected with the buffer cylinder or the cover plate and is used for driving the buffer cylinder and the cover plate to reset.
5. The hazardous waste incinerator double combustion chamber safe exhaust apparatus as claimed in claim 4, wherein A first magnet is embedded in the first piston, and the reset assembly comprises a second cylinder body which is arranged outside the first cylinder body, is connected with the first cylinder body, is provided with a third gas hole at the bottom and is provided with a fourth gas hole at the top.
6. The hazardous waste incinerator double combustion chamber safe exhaust apparatus as claimed in claim 1, wherein A second piston is slidably arranged in the second cylinder body, and a second magnet is embedded in the second piston.
7. The hazardous waste incinerator double combustion chamber safe exhaust apparatus as claimed in claim 1, wherein A second control valve is connected with the third gas hole of the second cylinder body through a pipeline and is adapted to be connected with a gas source or external atmosphere, so as to connect the gas source or external atmosphere with the third gas hole of the second cylinder body.
8. The hazardous waste incinerator double combustion chamber safe exhaust apparatus as claimed in claim 7, wherein