Flue gas reheating device for hazardous waste treatment

Abstract

The utility model relates to the technical field of flue gas heating, in particular to a flue gas reheating device for hazardous waste treatment, which comprises a heating box, a steam inlet channel, a steam outlet channel, a gas inlet cover plate, a gas outlet cover plate, a fixed seat, a fixed through groove, a fixed groove, a fixed opening, a heat exchange tube, a dismounting mechanism and an assembling mechanism, the steam inlet channel and the steam outlet channel are arranged on the two side walls of the opposite side of the heating box respectively, the air inlet cover plate and the air outlet cover plate are arranged on the two side walls of the opposite side of the heating box through installation bolts respectively, the air inlet cover plate is provided with an air inlet, the air outlet cover plate is provided with an air outlet, and the air inlet cover plate is provided with an air outlet. According to the technical scheme, the heat exchange pipe is disassembled and assembled through movement of the first hand wheel and rotation of the second hand wheel, and therefore the problem that the disassembly and assembly efficiency of the flue gas reheating device on the heat exchange pipe is low in the related technology is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas heating, in particular to a flue gas reheating device for hazardous waste treatment. Background Art

[0002] With the development of the economy, more and more waste gas is generated in the production process, and the treatment of hazardous waste gas has become a top priority. With the progress of industry, the treatment of hazardous waste gas has become more and more complicated. There are many ways to treat hazardous waste gas, but the treatment method should be selected according to the nature and emission characteristics of hazardous waste gas. Commonly used methods for hazardous waste gas treatment include adsorption, catalysis, activated carbon adsorption, laser decomposition, chemical method, biological method, etc. In short, the treatment of hazardous waste gas has become a top priority. Enterprises should pay attention to this issue and take measures to deal with it as soon as possible.

[0003] Flue gas is generated during hazardous waste treatment and needs to be heated during the treatment process. Usually, the hot steam generated by the hazardous waste treatment is used to heat the flue gas through heat exchange tubes. Flue gas heating can raise the exhaust temperature, which is more conducive to diffusion and reduces pollution.

[0004] However, in the process of multiple heat exchange tubes realizing heat exchange between hot steam and flue gas, the impurities in the flue gas will adhere to the surface of the heat exchange tube, thereby affecting the heat exchange effect of the heat exchange tube. Therefore, the heat exchange tube needs to be disassembled and cleaned regularly. However, the heat exchange tubes in the existing heating device are mostly installed in the heat exchange device by bolts. It is time-consuming and laborious to disassemble and install the bolts on multiple heat exchange tubes at the same time, thereby affecting the cleaning efficiency of the heat exchange tube. Utility Model Content

[0005] The utility model provides a flue gas reheating device for hazardous waste treatment, which solves the problem of low disassembly and assembly efficiency of heat exchange tubes in the flue gas reheating device in the related art.

[0006] The technical solution of the utility model is as follows: A flue gas reheating device for hazardous waste treatment, comprising a heating box, a steam inlet channel, a steam outlet channel, an air inlet cover plate, an air outlet cover plate, a fixing seat, a fixing through groove, a fixing groove, a fixing port, a heat exchange tube, a disassembly mechanism and an assembly mechanism;

[0007] The steam inlet channel and the steam outlet channel are respectively arranged on two side walls on opposite sides of the heating box;

[0008] The air inlet cover plate and the air outlet cover plate are respectively arranged on two side walls on opposite sides of the heating box by means of mounting bolts;

[0009] The air inlet cover is provided with an air inlet, the air outlet cover is provided with an air outlet, and the air inlet and the air outlet are respectively connected to the heating box;

[0010] The fixing seat is provided in a plurality, and the plurality of fixing seats are arranged in the heating box;

[0011] The fixing through slot is arranged through the fixing seat;

[0012] The fixing groove is formed on two side walls of the fixing seat away from the fixing through groove;

[0013] The fixing openings are provided in a plurality, and the plurality of fixing openings are opened at the bottom of the fixing groove;

[0014] The heat exchange tube is opened in the fixed through groove corresponding to the fixed opening;

[0015] The disassembly mechanism is arranged on the fixing seat and is used for installing and disassembling the heat exchange tube;

[0016] The assembling mechanism is arranged between the fixing seats and is used for assembling the fixing seats.

[0017] Preferably, the disassembly and assembly mechanism comprises:

[0018] A mounting ring, the mounting ring being slidably disposed in the fixing opening;

[0019] Wherein, the heat exchange tube extends into the mounting ring and is slidably connected with the inner wall of the mounting ring;

[0020] A first hand wheel, the first hand wheel is fixedly arranged on a side wall of the mounting ring close to the fixing groove;

[0021] A support spring, wherein the support spring is sleeved on the mounting ring, and two ends of the support spring are respectively fixedly connected to the mounting ring and the bottom of the fixing groove;

[0022] A positioning mechanism is arranged on the mounting ring and is used for positioning the mounting ring and the heat exchange tube.

[0023] Furthermore, the positioning mechanism includes:

[0024] A positioning ring, the positioning ring being fixedly arranged on an end of the mounting ring away from the fixing groove;

[0025] A positioning groove, the positioning groove is arranged in a ring shape and is opened on the outer wall of the positioning ring;

[0026] A positioning opening, wherein the positioning opening is provided in plurality, and the plurality of positioning openings are opened at the bottom of the positioning groove;

[0027] A rotating shaft, the rotating shaft being arranged in the positioning groove for rotation corresponding to the positioning opening;

[0028] A first gear, wherein the first gear is fixedly disposed on the rotating shaft, and a positioning block is fixedly disposed on a side wall of the first gear;

[0029] A limiting groove, the limiting groove corresponding to the positioning opening is opened on the outer wall of the heat exchange tube;

[0030] A driving mechanism is arranged on the positioning ring and is used to control the first gear to rotate synchronously.

[0031] Furthermore, the driving mechanism includes:

[0032] A driving ring, the driving ring being rotatably disposed in the positioning groove;

[0033] An annular rack, the annular rack is fixedly arranged on the inner wall of the driving ring, and the annular rack is meshed with the driving ring;

[0034] a second hand wheel, wherein a driving opening is formed on the second hand wheel, and the driving opening is fixedly connected to the outer wall of the driving ring;

[0035] A torsion spring is sleeved on the rotating shaft, and two ends of the torsion spring are respectively fixedly connected to the first gear and the side wall of the positioning groove.

[0036] Furthermore, the assembling mechanism comprises:

[0037] A threaded hole, wherein the threaded hole is provided on a side wall of the fixing groove;

[0038] A fixing bolt is inserted through the threaded hole through threaded engagement.

[0039] On the basis of the above scheme, it also includes a wind shield, which is arranged between the heat exchange tubes, and two points of the wind shield are respectively fixedly connected to the side walls of the fixed through groove, and an air outlet is provided on the wind shield.

[0040] The working principle and beneficial effects of the utility model are:

[0041] 1. In the utility model, by setting the disassembly and assembly mechanism, pulling the first hand wheel can drive the installation ring to move, and then the heat exchange tube is placed between the installation rings and the first hand wheel is loosened, so that the installation ring can be driven to reset under the elastic force of the support spring and the heat exchange tube is extended into the installation ring, so that the heat exchange tube is installed conveniently, and then the heat exchange tube is disassembled by pulling the first hand wheel;

[0042] 2. In the utility model, by setting the positioning mechanism, the operator controls the rotation of the second hand wheel to drive the first gear to rotate through the meshing of the annular rack and the first gear, so that the positioning and unlocking of the heat exchange tube can be realized through the cooperation of the positioning block and the side wall of the limiting groove, thereby preventing the heat exchange tube from falling out of the mounting ring during use;

[0043] 3. In the present invention, the windshield and the air outlet are arranged to increase the path of the flue gas through the heating box, thereby further improving the heat exchange effect of the hot steam exchanging heat with the flue gas through the heat exchange tube;

[0044] 4. In the utility model, through the arrangement of the heating box, the steam inlet channel, the steam outlet channel, the air inlet cover plate, the air outlet cover plate, the fixing seat, the fixing groove, the fixing groove, the fixing port, the heat exchange tube, the disassembly and assembly mechanism and the assembly mechanism, the fixing seat can be taken out from the heating box after the heat exchange is completed, and the heat exchange tube can be disassembled and assembled by moving the first hand wheel and rotating the second hand wheel, thereby solving the problem of low disassembly and assembly efficiency of the heat exchange tube in the flue gas reheating device in the related art. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0046] Figure 1 It is a schematic diagram of the structure of the utility model;

[0047] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0048] Figure 3 This is a schematic diagram of the structure of the utility model when multiple fixing seats are in a coordinated state;

[0049] Figure 4 This is a schematic diagram of the structure of a single fixing seat of the utility model;

[0050] Figure 5 This is a cross-sectional structural diagram of the disassembly and assembly mechanism of the utility model;

[0051] Figure 6 It is a schematic cross-sectional structure diagram of the positioning mechanism of the utility model.

[0052] In the figure: 1. heating box; 2. steam inlet channel; 3. steam outlet channel; 4. air inlet cover plate; 5. air outlet cover plate; 6. fixing seat; 7. fixing groove; 8. heat exchange tube; 9. mounting ring; 10. first hand wheel; 11. supporting spring; 12. positioning ring; 13. first gear; 14. driving ring; 15. second hand wheel; 16. torsion spring; 17. fixing bolt; 18. wind shield. DETAILED DESCRIPTION

[0053] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0054] like Figure 1 to Figure 6 As shown, this embodiment proposes a flue gas reheating device for hazardous waste treatment, including a heating box 1, a steam inlet channel 2, a steam outlet channel 3, an air inlet cover plate 4, an air outlet cover plate 5, a fixing seat 6, a fixing groove, a fixing groove 7, a fixing port, a heat exchange tube 8, a disassembly mechanism and an assembly mechanism, the steam inlet channel 2 and the steam outlet channel 3 are respectively arranged on two side walls on the opposite side of the heating box 1, the air inlet cover plate 4 and the air outlet cover plate 5 are respectively arranged on two side walls on the opposite side of the heating box 1 by mounting bolts, wherein the air inlet cover plate 4 is provided with an air inlet, and the air outlet cover plate 5 is provided with a The air outlet, the air inlet and the air outlet are respectively connected to the heating box 1, a plurality of fixing seats 6 are provided, and a plurality of fixing seats 6 are provided in the heating box 1, a fixed through groove is provided through the fixing seat 6, a fixing groove 7 is provided on two side walls of the fixing seat 6 away from the fixed through groove, a plurality of fixing ports are provided, and a plurality of fixing ports are provided at the bottom of the fixing groove 7, a heat exchange tube 8 is provided in the fixed through groove corresponding to the fixed port, a disassembly mechanism is provided on the fixing seat 6 for installing and disassembling the heat exchange tube 8, and an assembly mechanism is provided between the fixing seats 6 for assembling between the fixing seats 6.

[0055] Specifically, the operator can pass the hot steam into the heat exchange tube 8 through the steam inlet channel 2, and at the same time pass the flue gas into the heating box 1 through the air inlet on the air inlet cover plate 4, thereby facilitating heat exchange between the hot steam and the flue gas through the heat exchange tube 8.

[0056] Among them, the disassembly and assembly mechanism includes a mounting ring 9, a first hand wheel 10, a support spring 11 and a positioning mechanism. The mounting ring 9 is slidably arranged in the fixing port, wherein the heat exchange tube 8 extends into the mounting ring 9 and is slidably connected with the inner wall of the mounting ring 9. The first hand wheel 10 is fixedly arranged on the side wall of the mounting ring 9 close to the fixing groove 7. The support spring 11 is sleeved on the mounting ring 9. The two ends of the support spring 11 are respectively fixedly connected with the mounting ring 9 and the bottom of the fixing groove 7. The positioning mechanism is arranged on the mounting ring 9 for positioning between the mounting ring 9 and the heat exchange tube 8.

[0057] Specifically, the operator pulls the first hand wheel 10 to drive the mounting ring 9 to move, and then places the heat exchange tube 8 between the mounting rings 9 and releases the first hand wheel 10, so that the mounting ring 9 can be reset under the elastic force of the support spring 11 and the heat exchange tube 8 can be extended into the mounting ring 9, thereby realizing the installation of the heat exchange tube 8, and then the first hand wheel 10 can be pulled to drive the mounting ring 9 to move, so that the heat exchange tube 8 can be removed from the mounting ring 9, thereby realizing the disassembly of the heat exchange tube 8.

[0058] Among them, the positioning mechanism includes a positioning ring 12, a positioning groove, a positioning port, a rotating shaft, a first gear 13, a limiting groove and a driving mechanism. The positioning ring 12 is fixedly arranged at the end of the mounting ring 9 away from the fixing groove 7. The positioning groove is arranged in an annular shape. The positioning groove is arranged on the outer wall of the positioning ring 12. There are multiple positioning ports, and multiple positioning ports are arranged at the bottom of the positioning groove. The rotating shaft corresponding to the positioning port is arranged in the positioning groove. The first gear 13 is fixedly arranged on the rotating shaft. A positioning block is fixedly arranged on the side wall of the first gear 13. The limiting groove and the positioning port are arranged corresponding to the heat exchange On the outer wall of the tube 8, the driving mechanism is arranged on the positioning ring 12, which is used to control the first gear 13 to rotate synchronously. The driving mechanism includes a driving ring 14, an annular rack, a second hand wheel 15 and a torsion spring 16. The driving ring 14 is rotatably arranged in the positioning groove, the annular rack is fixedly arranged on the inner wall of the driving ring 14, the annular rack is meshed with the driving ring 14, and a driving port is opened on the second hand wheel 15. The driving port is fixedly connected to the outer wall of the driving ring 14, and the torsion spring 16 is mounted on the rotating shaft. The two ends of the torsion spring 16 are respectively fixedly connected to the first gear 13 and the side wall of the positioning groove.

[0059] Specifically, during the process of extending the heat exchange tube 8 into the mounting ring 9, the operator rotates the second hand wheel 15, thereby facilitating the rotation of the first gear 13 through the meshing of the annular rack and the first gear 13, and at the same time, the positioning block moves around the first gear 13, thereby retracting the positioning block into the positioning port. After the heat exchange tube 8 is extended into the mounting ring 9, the operator releases the second hand wheel 15, thereby resetting the first gear 13 under the action of the torsion spring 16, thereby allowing the positioning block to extend into the limit groove, thereby facilitating the positioning of the heat exchange tube 8. At the same time, the above steps can be reversed to complete the unlocking of the heat exchange tube 8.

[0060] The assembly mechanism includes a threaded hole and a fixing bolt 17 . The threaded hole is provided on the side wall of the fixing groove 7 . The fixing bolt 17 passes through the threaded hole through threaded engagement.

[0061] Specifically, the operator passes the fixing bolt 17 through two adjacent threaded holes through threaded fitting, thereby achieving assembly between the fixing seats 6 .

[0062] The heat exchange tubes 8 further include a windshield 18 , which is disposed between the heat exchange tubes 8 . Two points of the windshield 18 are respectively fixedly connected to the side walls of the fixed through groove, and an air outlet is provided on the windshield 18 .

[0063] Specifically, the wind shield 18 and the air vents can be used to increase the path for the flue gas to pass through the heating box 1, thereby further improving the heat exchange effect of the hot steam exchanging heat with the flue gas through the heat exchange tubes 8.

[0064] In this embodiment, when in use, the operator turns the mounting bolts to open the air intake cover plate 4 and remove the fixing seat 6, and then the operator turns the fixing bolts 17 to disassemble the fixing seats 6. At the same time, the operator turns the second hand wheel 15, so that the first gear 13 is driven to rotate through the meshing of the annular rack and the first gear 13, and the positioning block is moved around the first gear 13, so that the positioning block is retracted into the positioning port to complete the unlocking of the heat exchange tube 8. Then the operator pulls the first hand wheel 10 to drive the mounting ring 9 to move, so that the heat exchange tube 8 is disengaged from the mounting ring 9, thereby realizing the disassembly and cleaning of the heat exchange tube 8. After cleaning, the operator reverses the above steps to complete the installation of the heat exchange tube 8. Then the operator can pass hot steam into the heat exchange tube 8 through the steam inlet channel 2, and at the same time, pass flue gas into the heating box 1 through the air inlet on the air intake cover plate 4, so as to facilitate the heat exchange between hot steam and flue gas through the heat exchange tube 8.

[0065] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flue gas reheating device for hazardous waste treatment, characterized in that: include: Heating box (1); A steam inlet channel (2) and a steam outlet channel (3), wherein the steam inlet channel (2) and the steam outlet channel (3) are respectively arranged on two side walls on opposite sides of the heating box (1); An air inlet cover plate (4) and an air outlet cover plate (5), wherein the air inlet cover plate (4) and the air outlet cover plate (5) are respectively detachably arranged on two side walls on opposite sides of the heating box (1); The air inlet cover plate (4) is provided with an air inlet, the air outlet cover plate (5) is provided with an air outlet, and the air inlet and the air outlet are respectively connected to the heating box (1); A fixing seat (6), wherein the fixing seat (6) is provided in plurality, and the plurality of fixing seats (6) are arranged in the heating box (1); A fixed through slot, the fixed through slot being arranged through the fixed seat (6); A fixing groove (7), the fixing groove (7) being formed on two side walls of the fixing seat (6) away from the fixing through groove; A fixing opening, wherein a plurality of the fixing openings are provided, and the plurality of fixing openings are opened at the bottom of the fixing groove (7); A heat exchange tube (8), the heat exchange tube (8) being opened in the fixed through groove corresponding to the fixed opening; a disassembly and assembly mechanism, the disassembly and assembly mechanism being arranged on the fixing seat (6) and being used for installing and disassembling the heat exchange tube (8); An assembling mechanism, the assembling mechanism is arranged between the fixing seats (6) and is used for assembling the fixing seats (6).

2. A flue gas reheating device for hazardous waste treatment according to claim 1, characterized in that: The disassembly and assembly mechanism comprises: A mounting ring (9), the mounting ring (9) being slidably disposed in the fixing opening; Wherein, the heat exchange tube (8) extends into the mounting ring (9) and is slidably connected to the inner wall of the mounting ring (9); a first hand wheel (10), the first hand wheel (10) being fixedly arranged on a side wall of the mounting ring (9) close to the fixing groove (7); A support spring (11), the support spring (11) being sleeved on the mounting ring (9), and two ends of the support spring (11) being fixedly connected to the mounting ring (9) and the bottom of the fixing groove (7) respectively; A positioning mechanism, the positioning mechanism is arranged on the mounting ring (9) and is used to position the mounting ring (9) and the heat exchange tube (8).

3. A flue gas reheating device for hazardous waste treatment according to claim 2, characterized in that: The positioning mechanism comprises: a positioning ring (12), the positioning ring (12) being fixedly arranged at an end of the mounting ring (9) away from the fixing groove (7); a positioning groove, the positioning groove being arranged in an annular shape and being opened on the outer wall of the positioning ring (12); A positioning opening, wherein the positioning opening is provided in plurality, and the plurality of positioning openings are opened at the bottom of the positioning groove; A rotating shaft, the rotating shaft being arranged in the positioning groove for rotation corresponding to the positioning opening; A first gear (13), the first gear (13) being fixedly arranged on the rotating shaft, and a positioning block being fixedly arranged on a side wall of the first gear (13); a limiting groove, the limiting groove being arranged on the outer wall of the heat exchange tube (8) corresponding to the positioning opening; A driving mechanism, the driving mechanism is arranged on the positioning ring (12) and is used to control the first gear (13) to rotate synchronously.

4. A flue gas reheating device for hazardous waste treatment according to claim 3, characterized in that: The driving mechanism comprises: A drive ring (14), the drive ring (14) being rotatably disposed in the positioning groove; an annular rack, the annular rack being fixedly arranged on the inner wall of the drive ring (14), the annular rack being meshed with the drive ring (14); A second hand wheel (15), wherein the second hand wheel (15) is provided with a driving opening, and the driving opening is fixedly connected to the outer wall of the driving ring (14); A torsion spring (16), wherein the torsion spring (16) is sleeved on the rotating shaft, and two ends of the torsion spring (16) are respectively fixedly connected to the first gear (13) and the side wall of the positioning groove.

5. A flue gas reheating device for hazardous waste treatment according to claim 4, characterized in that: The assembly mechanism comprises: A threaded hole, the threaded hole being formed on a side wall of the fixing groove (7); A fixing bolt (17), wherein the fixing bolt (17) passes through the threaded hole through threaded engagement.

6. A flue gas reheating device for hazardous waste treatment according to claim 5, characterized in that: It also includes a wind shield (18), which is arranged between the heat exchange tubes (8), and two points of the wind shield (18) are respectively fixedly connected to the side walls of the fixed through groove, and an air outlet is provided on the wind shield (18).

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