Hazardous waste incineration flue gas purification treatment device

Abstract

The utility model discloses a hazardous waste incineration flue gas purification treatment device, and relates to the technical field of hazardous waste incineration flue gas treatment, the hazardous waste incineration flue gas purification treatment device comprises a treatment box, the back surface of the treatment box is communicated with a conical barrel, one end of the conical barrel is communicated with a negative pressure barrel, and one end of the negative pressure barrel is provided with a driving motor. According to the hazardous waste incineration flue gas purification treatment device, the insertion design of the insertion grooves and the connecting plates is adopted for the filtering assemblies, the fastening mode of threaded bolts is matched, rapid replacement of a multi-layer folding type activated carbon filtering net is achieved, when the filtering plates are blocked, the connecting plates can be horizontally pulled out only by unscrewing the threaded bolts, and the operation is convenient. The maintenance problem that the whole structure of traditional equipment needs to be disassembled is solved, the maintenance time is shortened, the device is particularly suitable for treating flue gas containing complex harmful substances (such as dioxin and heavy metal particles), and the maintenance difficulty and the high-temperature damage risk of the equipment are remarkably reduced while the harmful flue gas is efficiently purified through modular filtration and negative pressure collaborative design.

Description

Technical Field

[0001] This utility model relates to the field of hazardous waste incineration flue gas treatment technology, specifically a hazardous waste incineration flue gas purification and treatment device. Background Technology

[0002] Currently, the common method for treating hazardous waste is incineration. However, the flue gas produced during incineration contains harmful substances that pollute the atmosphere and needs to be purified before being released.

[0003] In the prior art, such as in publication number CN218573095U, a hazardous waste incineration flue gas purification and treatment device is disclosed. It includes a box body, a motor is fixedly connected to one outer wall of the box body, one end of the motor output shaft passes through the box body and is fixedly connected to a rotating shaft, and one end of the rotating shaft is fixedly connected to a cam. A sliding groove is opened on one inner wall of the box body, and a sliding seat is movably connected in the sliding groove. A contact rod is fixedly connected to one side of the sliding seat, and the contact rod can contact the cam. A spring is fixedly connected to one side of the sliding seat, and the spring is fixed to the box body. A striking head is fixedly connected to one side of the sliding seat.

[0004] Although the aforementioned patent allows workers to replace activated carbon in a timely manner through the activated carbon placement frame, improving the device's effectiveness, and also prevents filter plate blockage through the combined use of wedge blocks and protruding rods, thus improving the device's cleaning effect, during smoke purification, the smoke contains various harmful particulate impurities and dust, which are difficult to remove with a single filter. At the same time, the smoke contains a large amount of high temperature, which can damage the equipment if it directly enters the device.

[0005] Therefore, this utility model provides a device for purifying and treating flue gas from hazardous waste incineration. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a hazardous waste incineration flue gas purification and treatment device, which solves the problem that during the flue gas purification process, the flue gas contains a variety of harmful particulate impurities and dust, and a single filter is insufficient to remove these impurities. At the same time, the flue gas contains a large amount of high temperature, and if this high temperature directly enters the equipment, it will cause damage to the equipment.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a hazardous waste incineration flue gas purification and treatment device, comprising a treatment box, a conical cylinder being connected through the back of the treatment box, a negative pressure cylinder being connected through one end of the conical cylinder, a drive motor being provided at one end of the negative pressure cylinder, the output end of the drive motor passing through the negative pressure cylinder and fixedly connected to a negative pressure impeller, a filter assembly being connected through the side of the negative pressure cylinder, a water tank being fixedly connected to the side of the treatment box, and an atomizing assembly being provided inside the water tank;

[0008] The filter assembly includes a purification cylinder that is connected through to the side of the negative pressure cylinder. Several slots are opened at the top of the purification cylinder. A connecting plate is inserted into the slot. Several filter plates are arranged inside the connecting plate. Threaded holes are opened on both sides of the surface of the slot. Threaded bolts that are threadedly connected to the threaded holes are arranged on both sides of the surface of the connecting plate.

[0009] The atomizing component includes a water pump installed inside the water tank. The water pump's suction end is connected to a suction pipe, and the water pump's outlet end is connected to an outlet pipe. One end of the outlet pipe passes through the top of the water tank and is connected to an L-shaped pipe. An atomizing nozzle is installed at the bottom of the L-shaped pipe. The atomizing nozzle passes through a directional hole at the top of the treatment box, with its spray end facing the inside of the treatment box. A water receiving box is installed on the bottom surface inside the treatment box.

[0010] Preferably, the front of the water receiving box is connected to a drain pipe, and a trapezoidal cover is fixedly connected to the surface of the treatment box, with the air inlet of the trapezoidal cover covering the flue gas inlet of the treatment box.

[0011] Preferably, omnidirectional wheels with brake pads are installed at all four corners of the bottom surface of the processing box, and the wheel frames of the omnidirectional wheels are fixedly connected to the bottom surface of the processing box by bolts.

[0012] Preferably, the insertion direction of the connecting plate is perpendicular to the axis of the purification cylinder, and the filter plate is a multi-layer folded activated carbon filter with its edges snapped together with the inner wall of the connecting plate.

[0013] Preferably, the water outlet direction of the atomizing nozzle is inclined at an angle to the inner wall of the treatment tank, and the L-shaped pipe is fixed to the outer wall of the treatment tank by a clamp.

[0014] Preferably, the bottom of the water pump is fixed to the bottom surface of the water tank by a shock-absorbing pad, and the inlet end of the water pump extends to the bottom of the water tank and the pipe opening is equipped with an anti-clogging filter.

[0015] Beneficial effects

[0016] This invention provides a device for purifying and treating flue gas from hazardous waste incineration. Compared with the prior art, it has the following advantages:

[0017] 1. This hazardous waste incineration flue gas purification and treatment device adopts a slot and connecting plate plug-in design for the filter components, combined with the threaded bolt fastening method, to achieve rapid replacement of multi-layer folded activated carbon filter screens. When the filter plate is clogged, the connecting plate can be pulled out horizontally simply by loosening the threaded bolt. This solves the maintenance problem of traditional equipment that requires disassembling the entire structure, shortens maintenance time, and is especially suitable for flue gas treatment containing complex harmful substances (such as dioxins and heavy metal particles). Through modular filtration and negative pressure collaborative design, it can significantly reduce the difficulty of equipment maintenance and the risk of high temperature damage while efficiently purifying harmful flue gas.

[0018] 2. This hazardous waste incineration flue gas purification and treatment device sprays water mist into the treatment box through the atomizing nozzle of the atomizing component, which realizes rapid cooling of flue gas and pre-condensation of dust. The water mist evaporates and absorbs the heat of flue gas, avoiding direct impact of high temperature on the filter component and negative pressure impeller, thus solving the problem of equipment deformation or filter material failure caused by high temperature. At the same time, the wet dust particles are more easily captured by the filter plate due to their increased weight, thus improving the purification efficiency. Attached Figure Description

[0019] Figure 1 This is a three-dimensional appearance schematic diagram of the present utility model;

[0020] Figure 2 This is a three-dimensional view of the processing box of this utility model;

[0021] Figure 3 This is a three-dimensional appearance schematic diagram of the filter assembly of this utility model;

[0022] Figure 4 This is a three-dimensional appearance diagram of the atomizing component of this utility model.

[0023] In the diagram: 1. Processing box; 2. Conical cylinder; 3. Negative pressure cylinder; 4. Drive motor; 5. Negative pressure impeller; 6. Filter assembly; 61. Purification cylinder; 62. Slot; 63. Connecting plate; 64. Filter plate; 65. Threaded hole; 66. Threaded bolt; 7. Water tank; 8. Atomizing assembly; 81. Water pump; 82. Water suction pipe; 83. Water outlet pipe; 84. L-shaped pipe; 85. Atomizing nozzle; 9. Orientation hole; 10. Water receiving box; 11. Drain pipe; 12. Trapezoidal cover; 13. Casters. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This utility model provides two technical solutions:

[0026] Figures 1-4The first embodiment is shown: a hazardous waste incineration flue gas purification and treatment device, including a treatment box 1, a conical cylinder 2 connected through the back of the treatment box 1, a negative pressure cylinder 3 connected through one end of the conical cylinder 2, a drive motor 4 installed at one end of the negative pressure cylinder 3, the output end of the drive motor 4 passing through the negative pressure cylinder 3 and fixedly connected to a negative pressure impeller 5, a filter assembly 6 connected through the side of the negative pressure cylinder 3, a water tank 7 fixedly connected to the side of the treatment box 1, and an atomizing assembly 8 installed inside the water tank 7; the filter assembly 6 includes a purification cylinder 61 connected through the side of the negative pressure cylinder 3, a plurality of slots 62 opened at the top of the purification cylinder 61, and a connecting plate 63 inserted into the slots 62, connecting... The connecting plate 63 is provided with several filter plates 64 inside. Threaded holes 65 are opened on both sides of the surface of the slot 62. Threaded bolts 66 are provided on both sides of the surface of the connecting plate 63 and are threaded to the threaded holes 65. The atomizing component 8 includes a water pump 81 installed inside the water tank 7. The water pump 81 is connected to a water pump pipe 82 through the water pump 81 and to a water outlet pipe 83 through the water pump 81. One end of the water outlet pipe 83 passes through the top of the water tank 7 and is connected to an L-shaped pipe 84. An atomizing nozzle 85 is provided at the bottom of the L-shaped pipe 84. The atomizing nozzle 85 passes through the directional hole 9 at the top of the treatment box 1 and the spray end faces the inside of the treatment box 1. A water receiving box 10 is provided on the bottom surface of the treatment box 1.

[0027] Specifically, a purification cylinder 61 is welded to the right side of the negative pressure cylinder 3. Multiple slots 62 are opened on the top of the purification cylinder 61. A connecting plate 63 is inserted into the slot 62. A multi-layer folded activated carbon filter plate 64 is snapped into the connecting plate 63. Threaded holes 65 are opened on both sides of the slot 62. The connecting plate 63 is fixed on both sides by threaded bolts 66. A water tank 7 is welded to the left side of the treatment box 1. A water pump 81 is bolted into the water tank 7. The water pump 81 is connected to a water pump pipe 82 at the water pump ...

[0028] The filter structure, consisting of a multi-layer base frame connecting plate 63, employs a stainless steel metal filter to intercept large dust particles with a diameter greater than 10μm in the flue gas and utilizes a high-temperature ceramic coating to prevent adhesion. The second layer neutralizes SO2 and NO through an alkaline honeycomb ceramic substrate. x The first layer uses acidic gases and decomposes VOCs with the help of nanocatalysts. The second layer uses modified activated carbon to adsorb dioxins and benzene compounds and enhances selective complexation with potassium iodide. The third layer uses an electrostatic electret composite filter membrane to capture ultrafine particles smaller than PM2.5 and fixes heavy metal ions with chelating resin. This achieves a step-by-step purification process from physical interception and chemical neutralization to molecular adsorption, ultimately enabling the flue gas to meet emission standards.

[0029] In this embodiment, the water receiving box 10 is connected to the drain pipe 11 through the front, and the treatment box 1 is fixedly connected to the trapezoidal cover 12. The air inlet of the trapezoidal cover 12 covers the flue gas inlet of the treatment box 1.

[0030] Specifically, a drain pipe 11 is welded to the front of the water receiving box 10, and a ball valve is installed at the end of the drain pipe 11 to control the drainage; a trapezoidal cover 12 is bolted to the surface of the treatment box 1, and the horn-shaped air inlet of the trapezoidal cover 12 covers the flue gas inlet at the top of the treatment box 1. The trapezoidal cover 12 expands the smoke collection area and guides the airflow to enter evenly, and the drain pipe 11 quickly discharges the dust-containing wastewater to prevent secondary pollution.

[0031] Figures 1-4 The second embodiment is shown. The main difference from the first embodiment is that casters 13 with brake pads are installed at the four corners of the bottom surface of the processing box 1. The wheel frame of the caster 13 is fixedly connected to the bottom surface of the processing box 1 by bolts.

[0032] Specifically, the bottom of the processing box 1 is welded with brackets for casters 13 at the four corners. The casters 13 with brake pads are installed on the brackets by bolts. The casters 13 are heavy-duty nylon wheels. The casters 13 enable the equipment to move and position flexibly, adapt to the needs of multiple workstations in the workshop, and reduce the cost of fixed installation.

[0033] In this embodiment, the insertion direction of the connecting plate 63 is perpendicular to the axis of the purification cylinder 61, and the filter plate 64 is a multi-layer folded activated carbon filter with its edges snapped together with the inner wall of the connecting plate 63.

[0034] Specifically, the connecting plate 63 is horizontally inserted into the slot 62 of the purification cylinder 61, and the edge of the filter plate 64 is fixed to the inner wall of the connecting plate 63 by plastic clips. The filter plate 64 is a V-shaped folded activated carbon layer. The horizontal insertion and removal design shortens the replacement time of the filter plate 64, and the V-shaped folded structure increases the adsorption area and extends the filter life.

[0035] In this embodiment, the water outlet direction of the atomizing nozzle 85 is at an inclined angle to the inner wall of the treatment tank 1, and the L-shaped pipe 84 is fixed to the outer wall of the treatment tank 1 by a clamp.

[0036] Specifically, the water outlet direction of the atomizing nozzle 85 is inclined at an angle to the inner wall of the treatment box 1, and the L-shaped pipe 84 is fixed to the outer wall of the treatment box 1 by a stainless steel clamp. The inclined spray forms a vortex to enhance the mixing of water mist and flue gas. The clamp fixation prevents the pipe from vibrating and falling off, thus improving the atomization stability.

[0037] In this embodiment, the bottom of the water pump 81 is fixed to the bottom surface of the water tank 7 by a shock-absorbing pad, and the inlet end of the water pump pipe 82 extends to the bottom of the water tank 7 and the pipe opening is equipped with an anti-clogging filter screen.

[0038] Specifically, a rubber shock-absorbing pad is bonded to the bottom of the water pump 81, and the water inlet end of the water pipe 82 extends to the bottom of the water tank 7 and is equipped with a stainless steel filter screen. The shock-absorbing pad reduces the operating noise of the water pump 81, and the filter screen intercepts impurities to avoid clogging the atomizing nozzle 85 and ensure continuous operation.

[0039] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0040] Working principle: The negative pressure impeller 5 is driven by the drive motor 4 to rotate in the negative pressure cylinder 3 to form a negative pressure. The high-temperature flue gas generated by the incineration of hazardous waste is drawn in through the trapezoidal hood 12 and the treatment box 1. The water pump 81 of the atomizing component 8 draws water from the water tank 7 and sprays it out from the atomizing nozzle 85 through the L-shaped pipe 84. The water mist cools down and condenses the dust particles in the flue gas before falling into the water collection box 10. Then the flue gas enters the purification cylinder 61 and is adsorbed by the multi-layer folded activated carbon filter plate 64 in the slot 62. The filter plate 64 can be quickly replaced by plug-in connection plate 63 and threaded bolt 66. The wastewater is discharged through the drain pipe 11. The casters 13 enable flexible movement of the equipment, achieving efficient purification and convenient maintenance.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hazardous waste incineration flue gas purification and treatment device, comprising a treatment tank (1), characterized in that: The back of the treatment box (1) is connected to a conical cylinder (2), one end of the conical cylinder (2) is connected to a negative pressure cylinder (3), one end of the negative pressure cylinder (3) is provided with a drive motor (4), the output end of the drive motor (4) passes through the negative pressure cylinder (3) and is fixedly connected to a negative pressure impeller (5), the side of the negative pressure cylinder (3) is connected to a filter assembly (6), the side of the treatment box (1) is fixedly connected to a water tank (7), and an atomizing assembly (8) is provided inside the water tank (7); The filter assembly (6) includes a purification cylinder (61) that is connected through to the side of the negative pressure cylinder (3). The top of the purification cylinder (61) has several slots (62). A connecting plate (63) is inserted into the slot (62). Several filter plates (64) are arranged inside the connecting plate (63). Threaded holes (65) are opened on both sides of the surface of the slot (62). Threaded bolts (66) that are threaded to the threaded holes (65) are provided on both sides of the surface of the connecting plate (63). The atomizing component (8) includes a water pump (81) installed inside the water tank (7). The water pump (81) has a water pumping end connected to a water pumping pipe (82) and a water pump (81) having a water outlet end connected to a water outlet pipe (83). One end of the water outlet pipe (83) passes through the top of the water tank (7) and is connected to an L-shaped pipe (84). The bottom of the L-shaped pipe (84) is provided with an atomizing nozzle (85). The atomizing nozzle (85) passes through a directional hole (9) at the top of the treatment box (1) and the spraying end faces the inside of the treatment box (1). A water receiving box (10) is provided on the bottom surface of the treatment box (1).

2. The hazardous waste incineration flue gas purification and treatment device according to claim 1, characterized in that: The water receiving box (10) is connected to the drain pipe (11) through the front, and the treatment box (1) is fixedly connected to the trapezoidal cover (12). The air inlet of the trapezoidal cover (12) covers the flue gas inlet of the treatment box (1).

3. The hazardous waste incineration flue gas purification and treatment device according to claim 1, characterized in that: The processing box (1) is equipped with casters (13) with brake pads at the four corners of its bottom surface. The caster frame of the caster (13) is fixedly connected to the bottom surface of the processing box (1) by bolts.

4. The hazardous waste incineration flue gas purification and treatment device according to claim 1, characterized in that: The insertion direction of the connecting plate (63) is perpendicular to the axis of the purification cylinder (61), and the filter plate (64) is a multi-layer folded activated carbon filter with its edge snapped to the inner wall of the connecting plate (63).

5. The hazardous waste incineration flue gas purification and treatment device according to claim 1, characterized in that: The water outlet direction of the atomizing nozzle (85) is inclined at an angle to the inner wall of the treatment tank (1), and the L-shaped pipe (84) is fixed to the outer wall of the treatment tank (1) by a clamp.

6. The hazardous waste incineration flue gas purification and treatment device according to claim 1, characterized in that: The bottom of the water pump (81) is fixed to the bottom of the water tank (7) by a shock-absorbing pad, and the water inlet of the water pipe (82) extends to the bottom of the water tank (7) and the pipe opening is equipped with an anti-clogging filter.

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