Titanium dioxide calcination tail gas waste heat recycling device
By installing a filtration device, including a filter screen and a tank, in the waste heat recovery unit, the problem of dust adhesion affecting heat recovery is solved, achieving effective utilization of dust filtration and heat recovery, and simplifying the replacement and installation process of the filter screen.
Patent Information
- Application Number
- CN202520247493.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-02-17
AI Technical Summary
Existing waste heat recovery devices for titanium dioxide calcination tail gas cannot effectively clean small molecule dust, causing dust to adhere to the surface of the serpentine tube, which affects the heat recovery efficiency.
A waste heat recovery device incorporating a filtration unit is designed. The filtration unit includes a filter screen and a tank, which is filled with activated carbon. The combination structure of the filter screen and the tank blocks dust, and the fixing device ensures that the filter screen is easy to replace and install.
It effectively prevents dust from adhering to the surface of the serpentine tube, ensuring that heat can be recovered and utilized. The filter screen is easy to replace and install, avoiding rust problems and improving the service life and efficiency of the device.
Smart Images
Figure CN223691530U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a titanium dioxide calcination tail gas waste heat recycling device technical field especially relates to a tail gas waste heat recycling device. BACKGROUND
[0002] Tail gas waste heat recycling device is to have temperature's tail gas recycling equipment, in the tail gas of titanium dioxide calcination is with waste heat recycling device recycling, the waste heat recovery and calcination furnace's exhaust port are connected together and carry out recycling tail gas.
[0003] The inventor found that the general recycling device cannot clean the small molecule dust in the tail gas when using the tail gas waste heat recycling device, which causes the surface of the serpentine pipe in the recycling device to be covered with a lot of dust, and the heat of the surrounding gas cannot heat the water in the serpentine pipe, which makes it difficult to recycle the heat, and thus affects the recycling. UTILITY MODEL CONTENTS
[0004] The utility model discloses a titanium dioxide calcination tail gas waste heat recycling device to solve the shortcomings in the prior art.
[0005] In order to realize the above-mentioned purpose, the utility model discloses the following technical scheme: a titanium dioxide calcination tail gas waste heat recycling device, including waste heat recovery (1), the side surface fixed connection of waste heat recovery (1) has the connecting pipe (5), the inside of waste heat recovery (1) is provided with the serpentine pipe (4), the inside of connecting pipe (5) is provided with filter device (2), the surface of connecting pipe (5) is provided with convenient connecting device (3), filter device (2) includes the recess (21) of being set up in the inside of connecting pipe (5), the inside of recess (21) is provided with filter screen (22), the inside of filter screen (22) is set up with the groove (27), the inside of groove (27) is equipped with activated carbon.
[0006] The above-mentioned components reach the effect as follows: under the action of filter screen 22 and groove 27, dust can be blocked outside, avoiding the phenomenon that dust adheres to the surface of serpentine pipe 4 and causes inconvenience in recycling heat. When the waste heat recovery device 1 is needed, it is installed on the exhaust pipe of the titanium dioxide calcination furnace, and then the exhaust gas is introduced into the inside of the waste heat recovery device 1 for waste heat recovery, thereby achieving the effect of recycling the waste heat of the tail gas.
[0007] Preferably, the inside of the recess (21) is fixedly connected with a backing plate (23), and the backing plate (23) is a rubber plate.
[0008] The effect achieved by the above components is that the filter screen 22 is not in contact with the inside of the groove 21 under the action of the pad plate 23, avoiding the phenomenon that rust is taken out together inconveniently.
[0009] Preferably, a circular groove is formed on the surface of the filter screen (22), the inner wall of the groove (21) is fixedly connected with a fixing rod (24), and the surface of the fixing rod (24) is fixedly connected with a circular ring (25).
[0010] The effect achieved by the above components is that the filter screen 22 can be fixed in the inside of the groove 21 to filter dust in flue gas under the action of the fixing rod 24 and the circular ring 25.
[0011] Preferably, a handle (26) is fixedly connected to the surface of the filter screen (22) and arranged on the side surface of the filter screen (22).
[0012] The effect achieved by the above components is that the filter screen 22 can be quickly pulled out for replacement under the action of the handle 26, and when it is necessary to filter flue gas of titanium dioxide calcination, the filter screen 22 is installed into the inside of the groove 21, the filter screen 22 is fixed in the inside of the groove 21 by the fixing rod 24 and the circular ring 25, and the filter screen 22 is not in contact with the inside of the groove 21 under the action of the pad plate 23, avoiding the phenomenon that rust is taken out together inconveniently, thereby achieving the effect of filtering dust.
[0013] Preferably, the convenient connecting device (3) comprises a snap ring (33) fixedly connected to the surface of a connecting pipe (5), the surface of the connecting pipe (5) is sleeved with a sleeve rod (31), and the inner wall of the sleeve rod (31) is provided with an annular groove (32).
[0014] The effect achieved by the above components is that the waste heat recovery device 1 can be conveniently installed on the surface of the flue gas duct of the calcination furnace under the action of the annular groove 32 and the snap ring 33.
[0015] Preferably, the surface of the connecting pipe (5) is fixedly connected with a rectangular block (34), and the inner wall of the sleeve rod (31) is provided with a rectangular groove (35).
[0016] The effect achieved by the above components is that the connecting pipe 5 will not rotate when being connected with the sleeve rod 31 under the action of the rectangular block 34 and the rectangular groove 35.
[0017] Preferably, the surface of the sleeve rod (31) is inserted with a clamping rod (36), and the other end of the clamping rod (36) is inserted into the inside of the connecting pipe (5).
[0018] The effect achieved by the above components is that the sleeve rod 31 can be fixed on the surface of the connecting pipe 5 under the action of the clamping rod 36.
[0019] Preferably, the surface of the clamping rod (36) is sleeved with a spring (37), and the two ends of the spring (37) are fixedly connected with the surface of the sleeve rod (31) and one end of the clamping rod (36) respectively.
[0020] The effect achieved by the above components is that the clamping rod 36 is inserted into the inside of the connecting pipe 5 in a self-locking manner under the action of the spring 37, and when the waste heat recovery device 1 needs to be connected, the connecting pipe 5 is inserted into the inside of the sleeve rod 31 of the calcining furnace, the waste heat recovery device 1 is conveniently installed on the surface of the exhaust pipe of the calcining furnace under the action of the ring groove 32 and the clamping ring 33, the connecting pipe 5 does not rotate when being connected with the sleeve rod 31 under the action of the rectangular block 34 and the rectangular groove 35, and the clamping rod 36 is inserted into the inside of the connecting pipe 5 in a self-locking manner under the action of the spring 37 after the clamping ring 33 is clamped with the ring groove 32, thereby achieving the convenient connection effect.
[0021] Compared with the prior art, the advantages and positive effects of the utility model lie in that,
[0022] In the utility model, when it is needed to filter the flue gas of titanium dioxide calcination, the filter screen 22 is installed in the inside of the recess 21 through the quick groove 27 in the inside of the active carbon filter screen 22, the filter screen 22 is fixed in the inside of the recess 21 through the fixing rod 24 and the circular ring 25, the filter screen 22 does not contact the inside of the recess 21 under the action of the pad 23, the rusting together and inconvenient taking out phenomenon is avoided, the dust filtering effect is achieved, and the problem that the internal serpentine pipe is attached with more dust and is inconvenient to recycle and utilize the waste heat after long time use of the recycling device is solved. BRIEF DESCRIPTION OF DRAWINGS
[0023] Fig. 1 A three-dimensional structure schematic view of the titanium dioxide calcination tail gas waste heat recycling device is provided for the utility model;
[0024] Fig. 2 A filter device schematic view of the titanium dioxide calcination tail gas waste heat recycling device is provided for the utility model;
[0025] Fig. 3 A convenient connection device schematic view of the titanium dioxide calcination tail gas waste heat recycling device is provided for the utility model.
[0026] Legend: 1. Waste heat recovery unit; 2. Filter device; 21. Groove; 22. Filter screen; 23. Pad; 24. Fixing rod; 25. Ring; 26. Handle; 27. Tank body; 3. Easy connection device; 31. Sleeve rod; 32. Ring groove; 33. Clamping ring; 34. Rectangular block; 35. Rectangular groove; 36. Clamping rod; 37. Spring; 4. Serpentine tube; 5. Connecting pipe. Detailed Implementation
[0027] Example 1, as Figs. 1-3 As shown, a waste heat recovery and utilization device for titanium dioxide calcination tail gas includes a waste heat recovery unit 1. A connecting pipe 5 is fixedly connected to the side of the waste heat recovery unit 1. A serpentine pipe 4 is installed inside the waste heat recovery unit 1. A filter device 2 is installed inside the connecting pipe 5. A convenient connection device 3 is installed on the surface of the connecting pipe 5. When the waste heat recovery unit 1 is needed, it is installed on the exhaust pipe of the titanium dioxide calcination furnace, and the exhaust gas is then passed into the interior of the waste heat recovery unit 1 for waste heat recovery, thereby achieving the waste heat recovery and utilization of the tail gas.
[0028] Reference Fig. 2The filter device 2 comprises a groove 21 opened in the inside of the connecting pipe 5, the inside of the groove 21 is provided with a filter screen 22, the inside of the filter screen 22 is opened with a groove body 27, the inside of the groove body 27 is provided with activated carbon, under the action of the filter screen 22 and the groove body 27, the dust can be blocked outside, avoiding the phenomenon that the dust adheres to the surface of the serpentine pipe 4 and causes the inconvenience of heat recovery, when the waste heat recovery device 1 is needed, the waste heat recovery device 1 is installed on the exhaust pipe of the titanium dioxide calcining furnace, then the exhaust gas is introduced into the inside of the waste heat recovery device 1 for waste heat recovery, then the waste heat recovery utilization effect of the tail gas is achieved, the inside of the groove 21 is fixedly connected with a backing plate 23, the backing plate 23 is a rubber plate, under the action of the backing plate 23, the filter screen 22 will not contact with the inside of the groove 21, avoiding the phenomenon that the rust is taken out together, the surface of the filter screen 22 is opened with a circular groove, the inner wall of the groove 21 is fixedly connected with a fixing rod 24, the surface of the fixing rod 24 is fixedly connected with a circular ring 25, under the action of the fixing rod 24 and the circular ring 25, the filter screen 22 can be fixed in the inside of the groove 21 to filter the dust in the exhaust gas, the surface of the filter screen 22 is fixedly connected with a handle 26, the handle 26 is arranged on the side of the filter screen 22, under the action of the handle 26, the filter screen 22 can be quickly pulled out for replacement when the filter screen 22 is replaced, when the titanium dioxide calcined exhaust gas needs to be filtered, the activated carbon is quickly introduced into the inside of the groove body 27 of the filter screen 22, the filter screen 22 is installed in the inside of the groove 21, the filter screen 22 is fixed in the inside of the groove 21 through the fixing rod 24 and the circular ring 25, under the action of the backing plate 23, the filter screen 22 will not contact with the inside of the groove 21, avoiding the phenomenon that the rust is taken out together, then the dust filtering effect is achieved.
[0029] Referring to Fig. 3, the convenient connecting device 3 includes a snap ring 33 fixedly connected to the surface of the connecting pipe 5, the surface of the connecting pipe 5 is sleeved with a sleeve rod 31, the inner wall of the sleeve rod 31 is provided with a ring groove 32, under the action of the ring groove 32 and the snap ring 33, the waste heat recovery device 1 is conveniently installed on the surface of the smoke exhaust pipeline of the calcining furnace, the surface of the connecting pipe 5 is fixedly connected with a rectangular block 34, the inner wall of the sleeve rod 31 is provided with a rectangular groove 35, under the action of the rectangular block 34 and the rectangular groove 35, the connecting pipe 5 will not rotate when connected with the sleeve rod 31, the surface of the sleeve rod 31 is inserted with a clamping rod 36, the other end of the clamping rod 36 is inserted into the inside of the connecting pipe 5, under the action of the clamping rod 36, the sleeve rod 31 can be fixed on the surface of the connecting pipe 5, the surface of the clamping rod 36 is sleeved with a spring 37, the two ends of the spring 37 are fixedly connected with the surface of the sleeve rod 31 and one end of the clamping rod 36, under the action of the spring 37, the clamping rod 36 is self-locked and inserted into the inside of the connecting pipe 5 for fixation, when the waste heat recovery device 1 needs to be connected, the connecting pipe 5 is inserted into the inside of the sleeve rod 31 of the calcining furnace, under the action of the ring groove 32 and the snap ring 33, the waste heat recovery device 1 is conveniently installed on the surface of the smoke exhaust pipeline of the calcining furnace, under the action of the rectangular block 34 and the rectangular groove 35, the connecting pipe 5 will not rotate when connected with the sleeve rod 31, when the snap ring 33 and the ring groove 32 are clamped together, under the action of the spring 37, the clamping rod 36 is self-locked and inserted into the inside of the connecting pipe 5 for fixation, thereby achieving the convenient connection effect.
[0030] Working principle, when the titanium dioxide calcination tail gas waste heat recovery and utilization device needs to be used, when the waste heat recovery device 1 needs to be used, the waste heat recovery device 1 is installed on the smoke exhaust pipeline of the titanium dioxide calcination furnace, and then the discharged flue gas is introduced into the inside of the waste heat recovery device 1 for waste heat recovery, thereby achieving the tail gas waste heat recovery and utilization effect, when the titanium dioxide calcination flue gas needs to be filtered, the inside of the quick groove 27 of the activated carbon filter screen 22 is inserted into the inside of the groove 21, the filter screen 22 is fixed in the inside of the groove 21 through the fixed rod 24 and the circular ring 25, under the action of the pad 23, the filter screen 22 will not contact with the inside of the groove 21, avoiding the phenomenon that rusting together is not convenient to take out, thereby achieving the dust filtering effect, when the waste heat recovery device 1 needs to be connected, the connecting pipe 5 is inserted into the inside of the sleeve rod 31 of the calcining furnace, under the action of the ring groove 32 and the snap ring 33, the waste heat recovery device 1 is conveniently installed on the surface of the smoke exhaust pipeline of the calcining furnace, under the action of the rectangular block 34 and the rectangular groove 35, the connecting pipe 5 will not rotate when connected with the sleeve rod 31, when the snap ring 33 and the ring groove 32 are clamped together, under the action of the spring 37, the clamping rod 36 is self-locked and inserted into the inside of the connecting pipe 5 for fixation, thereby achieving the convenient connection effect.
Claims
1. A titanium dioxide calcination tail gas waste heat recovery and utilization device, comprising a waste heat recovery device (1), characterized in that: The side of the waste heat recovery device (1) is fixedly connected with a connecting pipe (5), the inside of the waste heat recovery device (1) is provided with a serpentine pipe (4), the inside of the connecting pipe (5) is provided with a filtering device (2), the surface of the connecting pipe (5) is provided with a convenient connecting device (3), the filtering device (2) comprises a groove (21) opened in the connecting pipe (5), the inside of the groove (21) is provided with a filter screen (22), the inside of the filter screen (22) is provided with a groove (27), and the inside of the groove (27) is provided with activated carbon. 2.The titanium dioxide calcination tail gas waste heat recovery and utilization device according to claim 1, characterized in that: The inside of the groove (21) is fixedly connected with a backing plate (23), and the backing plate (23) is a rubber plate. 3.The titanium dioxide calcination tail gas waste heat recovery and utilization device according to claim 2, characterized in that: The surface of the filter screen (22) is provided with a circular groove, the inner wall of the groove (21) is fixedly connected with a fixing rod (24), and the surface of the fixing rod (24) is fixedly connected with a circular ring (25).
4. The titanium dioxide calcination tail gas waste heat recovery and utilization device according to claim 3, characterized in that: The surface of the filter screen (22) is fixedly connected with a handle (26), and the handle (26) is arranged on the side of the filter screen (22).
5. The titanium dioxide calcination tail gas waste heat recovery and utilization device according to claim 4, characterized in that: The convenient connecting device (3) comprises a clasp (33) fixedly connected to the surface of the connecting pipe (5), the surface of the connecting pipe (5) is sleeved with a sleeve rod (31), and the inner wall of the sleeve rod (31) is provided with an annular groove (32). 6.The titanium dioxide calcination tail gas waste heat recovery and utilization device according to claim 5, characterized in that: The surface of the connecting pipe (5) is fixedly connected with a rectangular block (34), and the inner wall of the sleeve rod (31) is provided with a rectangular groove (35). 7.The titanium dioxide calcination tail gas waste heat recovery and utilization device according to claim 6, characterized in that: The surface of the sleeve rod (31) is inserted with a clamping rod (36), and the other end of the clamping rod (36) is inserted into the inside of the connecting pipe (5). 8.The titanium dioxide calcination tail gas waste heat recovery and utilization device according to claim 7, characterized in that: The surface of the clamping rod (36) is sleeved with a spring (37), and the two ends of the spring (37) are fixedly connected with the surface of the sleeve rod (31) and one end of the clamping rod (36) respectively.