Flue gas dry type waste heat recovery and dust removal device

Abstract

The utility model discloses a flue gas dry type waste heat recovery and dust removal device, which belongs to the technical field of flue gas treatment, and comprises a pipe body, heat conducting plates are uniformly arranged at the bottom end of the pipe body along the circumferential direction, the heat conducting plates penetrate through the outer wall of the pipe body, coil pipes are arranged in the heat conducting plates, and an annular pipe is arranged between the outer sides of the heat conducting plates. The annular pipes are located at the top and the bottom of the outer side of the heat conduction plate and communicate with the bottom end and the top end of the coil pipe correspondingly. The heat conduction plates are evenly arranged at the bottom end of the pipe body in the annular array mode, the coil pipes are installed in the heat conduction plates, when smoke passes through the interior of the pipe body, water flowing in the coil pipes can take away waste heat in the smoke, in addition, the cleaning mechanism composed of the reciprocating lead screw, the fan blades, the sliding blocks and the brush plates is arranged between the heat conduction plates, and the cleaning effect is good. And the brush plate can be automatically controlled to be attached to the surface of the heat conduction plate to slide in a reciprocating mode in the flue gas flowing process, the surface of the heat conduction plate is automatically cleaned, the heat conduction effect is guaranteed, and the energy utilization rate is increased.

Description

Technical Field

[0001] The utility model relates to a recovery and dust removal device, in particular to a flue gas dry waste heat recovery and dust removal device, belonging to the technical field of flue gas treatment. Background Art

[0002] In the prior art, for example, a utility model with publication number 202321583943.2 discloses a converter flue gas dust removal and waste heat recovery device. After long-term use of the device, certain impurities will accumulate inside the pipeline. In order to ensure the dust removal effect inside the pipeline, after a period of use, the first drive motor is started to drive the first rotating shaft to rotate, thereby driving the connecting rod to rotate, and the dust is shaken off by intermittently hitting the filter to ensure the dust removal effect. In addition, the device passes through the waste heat recovery box during use, and the water in the internal coil absorbs the heat of the flue gas for heat exchange.

[0003] Similar to the above application, there are still some shortcomings:

[0004] 1. After the flue gas passes through the waste heat recovery box, the dust inside will also adhere to the outer surface of the coil. Long-term use will affect the heat conduction effect of the coil and reduce energy utilization;

[0005] 2. Although the device can perform dust removal regularly, due to the different concentrations of particulate impurities in the flue gas, it is impossible to clean the filter in time when it is blocked, which affects the dust removal effect;

[0006] Therefore, a flue gas dry waste heat recovery and dust removal device is designed to optimize the above problems. Utility Model Content

[0007] The main purpose of the utility model is to provide a flue gas dry waste heat recovery and dust removal device, by evenly arranging heat transfer plates in an annular array at the bottom end of the pipe body, and installing a coil inside the heat transfer plates. When the flue gas passes through the pipe body, water flowing inside the coil can take away the waste heat in the flue gas. In addition, a cleaning mechanism composed of a reciprocating screw rod, a fan blade, a slider, and a brush plate is arranged between the heat transfer plates. During the flow of flue gas, the brush plate can be automatically controlled to slide back and forth on the surface of the heat transfer plate to self-clean the surface of the heat transfer plate, thereby ensuring the heat conduction effect and improving the energy utilization rate. By hingedly installing the filter plate inside the pipe body and using it in conjunction with a shaking mechanism composed of a rotating motor, a cam, a positioning block, a reset spring and a contact switch, when the filter plate is blocked, the suction force generated by the fan can be used to control the bottom end of the filter plate to squeeze the contact switch, automatically control the start of the rotating motor, and shake the filter plate for dust removal, thereby ensuring the circulation effect of the flue gas and having higher practicality.

[0008] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0009] A flue gas dry waste heat recovery and dust removal device comprises a pipe body, the bottom end of the pipe body is evenly provided with heat conducting plates along the circumferential direction, and the heat conducting plates penetrate the outer wall of the pipe body, coils are installed inside the heat conducting plates, annular tubes are provided between the outer sides of the heat conducting plates, the annular tubes are located at the top and bottom of the outer sides of the heat conducting plates, two groups of annular tubes are respectively connected with the bottom and top ends of the coils, a water inlet pipe is provided on the annular tube at the bottom of the heat conducting plate, a drain pipe is provided on the annular tube at the top of the heat conducting plate, a reciprocating screw is rotatably installed at the middle position of the inner bottom end of the pipe body, a fan blade is installed at the top of the reciprocating screw, a slider is slidably installed on the outer side of the reciprocating screw, brush plates are evenly provided on the outer side of the slider, the brush plates are attached to the surface of the heat conducting plate, a fan is installed on the inner top of the pipe body, a filter plate is installed at the corner of the top end of the pipe body, and a shaking mechanism is provided on the outer side of the filter plate.

[0010] Preferably, the top and bottom ends of the tube body are both perpendicular to the horizontal plane, and the middle section of the tube body is parallel to the horizontal plane.

[0011] Preferably: the shaking mechanism includes a rotating motor, a cam, a positioning block, a reset spring and a contact switch; the top of the filter plate is hinged to the top of the middle section of the tube body; a rotating motor is provided at the middle position above the filter plate; the rotating motor is mounted on the inner wall of the horizontal section of the tube body; a cam that fits the upper surface of the filter plate is installed at the output end of the rotating motor; a positioning block is fixed on the side of the middle section inside the tube body and located at the bottom end of the filter plate; a reset spring is provided between the positioning block and the end of the filter plate; a contact switch is installed on the side of the positioning block close to the filter plate.

[0012] Preferably: a collecting groove is provided below the filter plate and on the tube body, and a cleaning port is provided on the outer side of the collecting groove.

[0013] Preferably, the heat conducting plate is rectangular in shape, and is perpendicular to the section of the outer side of the tube body.

[0014] Preferably, six groups of heat conducting plates are provided, and the angles between adjacent heat conducting plates and the axis of the bottom end of the tube body are the same.

[0015] Preferably, a mounting plate is horizontally fixed to the bottom end of the tube body, and a mounting hole is formed on the mounting plate.

[0016] The beneficial effects of the utility model are:

[0017] The utility model provides a flue gas dry waste heat recovery and dust removal device, in which heat conduction plates are evenly arranged in an annular array at the bottom end of a tube body, and a coil is installed inside the heat conduction plate. When the flue gas passes through the tube body, the water flowing inside the coil can take away the waste heat in the flue gas. In addition, a cleaning mechanism consisting of a reciprocating screw rod, a fan blade, a slider, and a brush plate is arranged between the heat conduction plates, which can automatically control the brush plate to slide back and forth on the surface of the heat conduction plate during the flow of the flue gas, and self-clean the surface of the heat conduction plate, thereby ensuring the heat conduction effect and improving the energy utilization rate.

[0018] By hingedly installing the filter plate inside the pipe body and using it in conjunction with a shaking mechanism consisting of a rotating motor, cam, positioning block, return spring and contact switch, when the filter plate is blocked, the suction force generated by the fan can be used to control the bottom end of the filter plate to squeeze the contact switch, automatically controlling the start of the rotating motor to shake the filter plate for dust removal, thereby ensuring the circulation of flue gas and being more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front cross-sectional view of the utility model;

[0020] Figure 2 This is a diagram of a heat conducting plate of the present utility model;

[0021] Figure 3 It is a top cross-sectional view of the bottom end of the tube body of the utility model;

[0022] Figure 4 For the utility model Figure 1 Enlarged view of point A in the middle.

[0023] In the figure: 1. pipe body; 2. heat conduction plate; 3. coil; 4. annular pipe; 5. water inlet pipe; 6. drain pipe; 7. reciprocating screw; 8. fan blades; 9. slider; 10. brush plate; 11. filter plate; 12. fan; 13. rotating motor; 14. cam; 15. positioning block; 16. reset spring; 17. contact switch; 18. collecting tank. DETAILED DESCRIPTION

[0024] In order to make the technical solution of the utility model more clear and specific to those skilled in the art, the utility model is further described in detail below in conjunction with embodiments and drawings, but the implementation methods of the utility model are not limited thereto.

[0025] like Figure 1-Figure 4 As shown, the present embodiment provides a flue gas dry waste heat recovery and dust removal device, comprising a pipe body 1, a heat conducting plate 2 is evenly arranged at the bottom end of the pipe body 1 along the circumferential direction, and the heat conducting plate 2 passes through the outer wall of the pipe body 1, a coil 3 is installed inside the heat conducting plate 2, an annular tube 4 is arranged between the outer sides of the heat conducting plate 2, the annular tube 4 is located at the top and the bottom of the outer side of the heat conducting plate 2, two groups of annular tubes 4 are respectively connected with the bottom and the top of the coil 3, a water inlet pipe 5 is arranged on the annular tube 4 at the bottom of the heat conducting plate 2, and a drain pipe 6 is arranged on the annular tube 4 at the top of the heat conducting plate 2, a reciprocating screw 7 is rotatably installed at the middle position of the inner bottom end of the pipe body 1, a fan blade 8 is installed at the top of the reciprocating screw 7, a slider 9 is slidably installed on the outer side of the reciprocating screw 7, a brush plate 10 is evenly arranged on the outer side of the slider 9, and the brush plate 10 is attached to the surface of the heat conducting plate 2, a fan 12 is installed at the inner top of the pipe body 1, a filter plate 11 is installed at the corner of the top of the pipe body 1, and a shaking mechanism is provided on the outer side of the filter plate 11.

[0026] The overall working principle is as follows: before use, the bottom end of the tube body 1 is installed on the flue gas duct. When in use, the fan 12 is turned on to draw the flue gas into the inside of the tube body 1. When the flue gas enters the inside of the tube body 1, the cold water is connected to the water inlet pipe 5 and injected into the inside of the coil 3. The flue gas passes between the heat transfer plates 2. The water source inside the coil 3 takes away the heat in the flue gas, and while the flue gas flows upward, the fan blades 8 are controlled to rotate. The rotation of the fan blades 8 drives the reciprocating screw 7 to rotate, and the control slider 9 slides along the length direction of the reciprocating screw 7. The movement of the slider 9 also drives the brush plate 10 to move against the heat transfer plate 2 to sweep away the dust on the heat transfer plate 2 to ensure the effect of waste heat recovery. After the heat in the flue gas is recovered, it continues to flow upward. When passing through the filter plate 11, the dust in the flue gas is filtered and then discharged to the outside.

[0027] In this embodiment, the top and bottom ends of the tube body 1 are both perpendicular to the horizontal plane, and the middle section of the tube body 1 is parallel to the horizontal plane.

[0028] Local working principle: The smoke flows in an S-shape inside the pipe body 1 so that different operations can be performed inside different pipes.

[0029] In this embodiment, the shaking mechanism includes a rotating motor 13, a cam 14, a positioning block 15, a reset spring 16 and a contact switch 17. The top of the filter plate 11 is hinged to the top of the middle section of the tube body 1. A rotating motor 13 is provided at the middle position above the filter plate 11. The rotating motor 13 is installed on the inner wall of the horizontal section of the tube body 1. The output end of the rotating motor 13 is provided with a cam 14 that fits with the upper surface of the filter plate 11. A positioning block 15 is fixed on the side of the middle section inside the tube body 1 and located at the bottom end of the filter plate 11. A reset spring 16 is provided between the positioning block 15 and the end of the filter plate 11. A contact switch 17 is installed on the side of the positioning block 15 close to the filter plate 11.

[0030] Local working principle: When the fan 12 is started, gas will be extracted from the inside of the tube body 1. If the filter plate 11 is blocked, the bottom end of the filter plate 11 will swing due to the influence of air pressure, which will squeeze the return spring 16 and press the contact switch 17 to automatically control the start of the rotating motor 13. The rotating motor 13 rotates for a fixed time, and the rotating motor 13 drives the cam 14 to rotate, shaking the filter plate 11 to shake off the dust and ensure the flow rate of the flue gas.

[0031] In this embodiment, a collecting groove 18 is provided below the filter plate 11 and on the tube body 1 , and a cleaning port is provided on the outer side of the collecting groove 18 .

[0032] Partial working principle: After the dust on the filter plate 11 is shaken off by the cam 14, it will fall into the interior of the collecting tank 18 for storage. After it is full, the cleaning port is opened for cleaning.

[0033] In this embodiment, the heat conducting plate 2 is rectangular in shape, and the heat conducting plate 2 is perpendicular to the cross section of the outer side of the tube body 1 .

[0034] Partial working principle: The vertical setting of the heat conducting plate 2 reduces the rate of heat transfer to the flue gas. At the same time, the heat conducting plate 2 has a larger surface area, which improves the heat exchange effect.

[0035] In this embodiment, six groups of heat conducting plates 2 are provided, and the angles between adjacent heat conducting plates 2 and the axis of the bottom end of the tube body 1 are the same.

[0036] Local working principle: heat is conducted simultaneously through multiple groups of heat conducting plates 2, so the waste heat utilization rate is higher and energy loss is reduced.

[0037] In this embodiment, a mounting plate is horizontally fixed to the bottom end of the tube body 1, and a mounting hole is formed on the mounting plate.

[0038] Partial working principle: During the installation of the device, the bolts are passed through the mounting holes and fixed to the flue, which is convenient for installation.

[0039] The above is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the scope disclosed by the present invention according to the technical solution and concept of the present invention, which fall within the protection scope of the present invention.

Claims

1. A flue gas dry waste heat recovery and dust removal device, characterized in that: The invention comprises a tube body (1), the bottom end of the tube body (1) is evenly provided with heat conducting plates (2) along the circumferential direction, and the heat conducting plates (2) penetrate the outer wall of the tube body (1), the inside of the heat conducting plates (2) is provided with coils (3), annular tubes (4) are provided between the outer sides of the heat conducting plates (2), the annular tubes (4) are located at the top and the bottom of the outer side of the heat conducting plates (2), two groups of annular tubes (4) are respectively connected with the bottom and the top of the coils (3), a water inlet pipe (5) is provided on the annular tube (4) at the bottom of the heat conducting plate (2), and the annular tube (4) at the top of the heat conducting plate (2) is provided with a water inlet pipe (5). 4) is provided with a drainage pipe (6), a reciprocating screw (7) is rotatably installed at the middle position of the inner bottom end of the tube body (1), a fan blade (8) is installed at the top end of the reciprocating screw (7), a slider (9) is slidably installed on the outer side of the reciprocating screw (7), a brush plate (10) is evenly provided on the outer side of the slider (9), and the brush plate (10) is attached to the surface of the heat conducting plate (2), a fan (12) is installed at the inner top of the tube body (1), a filter plate (11) is installed at the corner of the top end of the tube body (1), and a shaking mechanism is provided on the outer side of the filter plate (11).

2. A flue gas dry waste heat recovery and dust removal device according to claim 1, characterized in that: The top and bottom ends of the tube body (1) are both perpendicular to the horizontal plane, and the middle section of the tube body (1) is parallel to the horizontal plane.

3. A flue gas dry waste heat recovery and dust removal device according to claim 2, characterized in that: The shaking mechanism comprises a rotating motor (13), a cam (14), a positioning block (15), a return spring (16) and a contact switch (17); the top end of the filter plate (11) is hingedly connected to the top of the middle section of the tube body (1); a rotating motor (13) is arranged at the middle position above the filter plate (11); the rotating motor (13) is mounted on the inner wall of the horizontal section of the tube body (1); a cam (14) which is in contact with the upper surface of the filter plate (11) is mounted at the output end of the rotating motor (13); a positioning block (15) is fixed on the side of the middle section inside the tube body (1) and located at the bottom end of the filter plate (11); a return spring (16) is arranged between the positioning block (15) and the end of the filter plate (11); and a contact switch (17) is mounted on the side of the positioning block (15) close to the filter plate (11).

4. A flue gas dry waste heat recovery and dust removal device according to claim 3, characterized in that: A collecting groove (18) is provided below the filter plate (11) and on the tube body (1), and a cleaning port is provided on the outer side of the collecting groove (18).

5. The dry waste heat recovery and dust removal device for flue gas according to claim 1 is characterized in that: The heat conducting plate (2) is rectangular in shape, and the heat conducting plate (2) is perpendicular to the section of the outer side of the tube body (1).

6. A flue gas dry waste heat recovery and dust removal device according to claim 5, characterized in that: Six groups of heat conducting plates (2) are provided, and the angles between the axes of adjacent heat conducting plates (2) and the bottom ends of the tube bodies (1) are the same.

7. The dry waste heat recovery and dust removal device for flue gas according to claim 1 is characterized in that: A mounting plate is horizontally fixed to the bottom end of the tube body (1), and a mounting hole is provided on the mounting plate.

Images