Kiln tail steam temperature reducing device
By designing components for heat exchange and cleaning between cooling water and air ducts in the water collection tank, the problems of ash accumulation and scale buildup during kiln tail steam transport are solved, achieving effective cooling of kiln tail steam and improved heat exchange efficiency.
Patent Information
- Application Number
- CN202423126290.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2034-12-18
AI Technical Summary
During the transportation of steam from the kiln tail, impurities and particulate matter adhere to the inner wall of the air guide pipe, resulting in the formation of an ash layer. This affects heat transfer and uneven temperature distribution, reducing the cooling effect. Furthermore, scale buildup on the outer wall of the air guide pipe hinders heat exchange.
Design a kiln tail steam desuperheating device that uses cooling water in the water collection tank to exchange heat with the air guide pipe. Combined with a stirring mechanism and cleaning components, the dust and scale on the inner wall of the air guide pipe are cleaned regularly to ensure heat exchange efficiency.
It effectively reduces the temperature of the steam at the kiln tail and keeps the inner wall of the air duct clean, thereby improving heat exchange efficiency and preventing the formation of ash and scale.
Smart Images
Figure CN223954139U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to kiln tail steam temperature reduction technical field, concretely is a kind of kiln tail steam temperature reduction device. BACKGROUND
[0002] In industrial production, especially in the process involving rotary kiln and other equipment, steam as an important energy and heating medium, its temperature and pressure control is crucial. Rotary kiln, such as cement kiln, metallurgical chemical kiln and lime kiln, etc. will produce a large amount of steam in the calcination process. These steam often has high temperature and pressure when discharged at the kiln tail, and if not properly treated, it may adversely affect the subsequent equipment and process.
[0003] However, there are still the following problems:
[0004] During the process of transporting kiln tail steam through the gas guide pipe, the dust and other particulate matter in the kiln tail steam, which is caused by the impurities in the combustion process and raw materials, will adhere to the inner wall of the gas guide pipe. The long-term accumulation of dust will form a thick layer of dust or slag. These layered structures will further hinder the transfer of heat and may cause uneven temperature distribution inside the pipe, thereby reducing the effect of kiln tail steam temperature reduction, and the scale formed on the outer wall of the gas guide pipe will also affect heat exchange. SUMMARY
[0005] To overcome the shortcomings of the prior art, the utility model provides a kiln tail steam temperature reduction device, which can reduce the temperature of kiln tail steam and ensure the effect of temperature reduction.
[0006] The utility model provides the following technical scheme: a kiln tail steam temperature reduction device, comprising a water collecting tank, a drain pipe is arranged at the lower end of the water collecting tank, a water inlet pipe is arranged at the side of the water collecting tank, a threaded gas guide pipe is fixedly connected inside the water collecting tank, the gas inlet end and the gas outlet end of the threaded gas guide pipe are arranged at the upper end and the lower end of one side of the water collecting tank, a supporting plate is fixedly connected to the upper end of the water collecting tank, a tank cover is hingedly connected to the side of the water collecting tank, a stirring mechanism is fixedly connected to the supporting plate, a communication pipe is connected to one side of the gas inlet end and the gas outlet end of the threaded gas guide pipe, a sealing mechanism is connected to the communication pipe, a driving mechanism is fixedly connected to the supporting plate, and a cleaning assembly for cleaning the threaded gas guide pipe is detachably connected to the driving mechanism.
[0007] Further, the upper end and the lower end of the threaded gas guide pipe are inclined.
[0008] Further, the stirring mechanism comprises a first driver fixedly connected to the supporting plate, a first rotating shaft is fixedly connected to the first driver, and the first rotating shaft is rotatably connected between the supporting plate and the first driver, the lower end of the first rotating shaft is located inside the water collecting tank, and a plurality of stirring blades are fixedly connected to the first rotating shaft.
[0009] Further, the sealing mechanism comprises an outer threaded pipe fixedly connected to the front end of the communication pipe, an inner threaded pipe threadedly connected to the outer threaded pipe, and a baffle fixedly connected to the front end of the inner threaded pipe.
[0010] Further, the driving mechanism comprises a second driver fixedly connected to the support plate, an output end of the second driver fixedly connected to a second rotating shaft, the second rotating shaft fixedly connected to a winding roller, the winding roller fixedly connected to a first traction rope, and an output end of the first traction rope fixedly connected to a bolt.
[0011] Further, the first driver is an electric motor, and the second driver is a forward-reverse motor.
[0012] Further, the cleaning assembly comprises a metal ball, a threaded hole matched with the bolt formed in the upper portion of the metal ball, a second traction rope fixedly connected to the metal ball, and an output end of the second traction rope fixedly connected to a cloth ball or an elastic sponge.
[0013] Compared with the prior art, the utility model has the following beneficial effects:
[0014] The kiln tail steam temperature reducing device sends the kiln tail steam into the gas guide pipe, the kiln tail steam in the gas guide pipe exchanges heat with the cooling water in the water collecting tank, thereby reducing the temperature, and the dust adhered to the gas guide pipe can be cleaned regularly, so that the heat exchange efficiency between the kiln tail steam and the cooling water is ensured. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;
[0016] Figure 2 It is a schematic diagram of the overall three-dimensional structure of the utility model from another angle;
[0017] Figure 3 It is a schematic diagram of the overall cross-sectional three-dimensional structure of the utility model;
[0018] Figure 4 It is Figure 2 It is an enlarged view of A.
[0019] In the figure: 1, water collecting tank; 2, drain pipe; 3, water inlet pipe; 4, threaded gas guide pipe; 5, support plate; 6, tank cover; 7, communication pipe; 8, first driver; 9, first rotating shaft; 10, stirring blade; 11, outer threaded pipe; 12, inner threaded pipe; 13, baffle; 14, second driver; 15, second rotating shaft; 16, winding roller; 17, first traction rope; 18, bolt; 19, metal ball; 20, threaded hole; 21, second traction rope. DETAILED DESCRIPTION
[0020] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.
[0021] Please refer to Figures 1 to 4 A kiln tail steam temperature reducing device, including water collecting tank 1, water collecting tank 1's lower end is provided with drain pipe 2, water collecting tank 1's side is provided with inlet pipe 3, the inside fixedly connected with the thread-like air duct 4 of water collecting tank 1, the air inlet end and the air outlet end of thread-like air duct 4 are all set in the upper end and the lower end of one side of water collecting tank 1, the upper end of water collecting tank 1 is fixedly connected with support plate 5, the side of water collecting tank 1 is hinged with tank cover 6, support plate 5 is fixedly connected with stirring mechanism, the air inlet end and the air outlet end of thread-like air duct 4 are all connected with the communicating pipe 7 of one side, the communicating pipe 7 is connected with sealing mechanism, support plate 5 is fixedly connected with drive mechanism, drive mechanism is detachably connected with cleaning assembly for cleaning thread-like air duct 4 on.
[0022] As Figures 1 to 4As shown, the kiln tail steam temperature reducing device in the utility model, when using, first close the drain pipe 2, from the water inlet pipe 3 cooling water is sent to the inside of the water collecting tank 1, so that the cooling water inside the water collecting tank 1 submerges the thread-like air guide pipe 4 located inside the water collecting tank 1, so that the kiln tail steam can be heat exchanged to reduce the temperature of the kiln tail steam, and the cooling water in the water collecting tank 1 can be discharged through the drain pipe 2 and added from the water inlet pipe 3 to replace the cooling water in the water collecting tank 1, long time heat exchange can make the thread-like air guide pipe 4 and the inner wall of the water collecting tank 1 scale, at this time, the box cover 6 can be opened, the descaling agent is poured into the inside of the water collecting tank 1, and the driver one 8 is started, the driver one 8 makes the rotating shaft one 9 rotate, so that the stirring blade 10 rotates, and the water and the descaling agent in the water collecting tank 1 are fully stirred to enhance the descaling effect, when the inner wall of the thread-like air guide pipe 4 needs to be cleaned, the inlet of the communication pipe 7 connected to the air inlet end and the air outlet end of the thread-like air guide pipe 4 is opened, only the inner thread pipe 12 needs to be rotated, is removed, so that the front end of the communication pipe 7 is exposed, at this time, the metal ball 19 is placed in the communication pipe 7 at the upper end of the thread-like air guide pipe 4, the metal ball 19 slides along the inner wall of the thread-like air guide pipe 4 under the action of its own gravity until the metal ball 19 flows out from the communication pipe 7 at the air outlet end of the thread-like air guide pipe 4, at this time, the traction rope two 21 is located in the inside of the thread-like air guide pipe 4, the cloth bundle or the elastic sponge is located at the inlet of the upper communication pipe 7, the driver two 14 is reversely driven, the rotating shaft two 15 is reversely rotated, so that the traction rope one 17 on the winding roller 16 is lowered until the bolt 18 fixedly connected to the front end of the traction rope one 17 is screwed with the threaded hole 20 on the metal ball 19, then the driver two 14 is forwardly driven, the driver two 14 makes the rotating shaft two 15 forwardly rotate, so that the traction rope one 17 is wound back on the winding roller 16, in the process of winding back the traction rope one 17 on the winding roller 16, the traction rope one 17 gives the metal ball 19 a pulling force, so that the metal ball 19 moves upward, the traction rope two 21 also moves together, so that the cloth bundle or the elastic sponge at the output end of the traction rope two 21 is pulled, so that the cloth bundle or the elastic sponge moves along the inner wall of the thread-like air guide pipe 4 under the action of the pulling force and comes out from the lower end of the lower communication pipe 7, so that the dust adhered to the inner wall of the thread-like air guide pipe 4 is cleaned, so that the dust is not adhered too much on the inner wall of the thread-like air guide pipe 4 to form a layered structure, so as to ensure the cleanliness of the inner wall of the thread-like air guide pipe 4 and the heat exchange efficiency between the cooling water and the kiln tail steam.
[0023] As Figure 1 , Figure 2 or Figure 3 shown, the upper end and the lower end of the thread-like air guide pipe 4 are inclined.
[0024] Specifically, the upper end and the lower end of the thread-shaped air duct 4 are inclined to allow the metal ball 19 to roll normally.
[0025] As shown in Figure 3 , the stirring mechanism comprises a driver I 8 fixedly connected to the support plate 5, a rotating shaft I 9 fixedly connected to the driver I 8, the rotating shaft I 9 being rotatably connected to the support plate 5, the lower end of the rotating shaft I 9 being located inside the water collecting tank 1, and a plurality of stirring blades 10 fixedly connected to the rotating shaft I 9.
[0026] Specifically, when the inner wall of the water collecting tank 1 and the outer wall of the thread-shaped air duct 4 need to be descaled, first open the tank cover 6, pour the descaling agent into the water collecting tank 1, and start the driver I 8, the driver I 8 drives the rotating shaft I 9 to rotate, so that the stirring blades 10 rotate, and the water and the descaling agent inside the water collecting tank 1 are fully stirred to enhance the descaling effect.
[0027] As shown in Figure 4 , the sealing mechanism comprises an outer threaded pipe 11 fixedly connected to the front end of the communication pipe 7, an inner threaded pipe 12 threadedly connected to the outer threaded pipe 11, and a baffle 13 fixedly connected to the front end of the inner threaded pipe 12.
[0028] Specifically, rotating the inner threaded pipe 12 can make the inner threaded pipe 12 and the outer threaded pipe 11 disengage, so as not to seal the front end of the communication pipe 7, thereby facilitating the placement of the metal ball 19 into the thread-shaped air duct 4, and the communication pipe 7 can be sealed in the opposite direction to ensure that the kiln tail steam flows normally in the thread-shaped air duct 4.
[0029] As shown in Figure 4 , the driving mechanism comprises a driver II 14 fixedly connected to the support plate 5, a rotating shaft II 15 fixedly connected to the output end of the driver II 14, a winding roller 16 fixedly connected to the rotating shaft II 15, a traction rope I 17 fixedly connected to the winding roller 16, and a bolt 18 fixedly connected to the output end of the traction rope I 17.
[0030] Specifically, reverse driving the driver II 14 drives the rotating shaft II 15 to rotate in the opposite direction, so that the traction rope I 17 on the winding roller 16 is lowered until the bolt 18 at the front end of the traction rope I 17 is threadedly connected with the threaded hole 20 on the metal ball 19, and then the driver II 14 is forwardly driven to drive the rotating shaft II 15 to rotate in the forward direction, so that the traction rope I 17 is wound back onto the winding roller 16, and in the process of winding the traction rope I 17 back onto the winding roller 16, the traction rope I 17 exerts an upward pulling force on the metal ball 19.
[0031] As shown in Figure 1 , Figure 2 , Figure 3 or Figure 4As shown, the driver one 8 is a motor, and the driver two 14 is a forward-reverse motor.
[0032] Specifically, the driver one 8 makes the rotating shaft one 9 rotate in a fixed direction, and the driver two 14 can make the rotating shaft two 15 rotate forward or reversely to control the moving direction of the traction rope one 17.
[0033] As Figure 4 As shown, the cleaning assembly comprises a metal ball 19, a threaded hole 20 is formed in the upper portion of the metal ball 19 and matched with the bolt 18, a traction rope two 21 is fixedly connected to the metal ball 19, and a cloth bundle or elastic sponge is fixedly connected to the output end of the traction rope two 21.
[0034] Specifically, the metal ball 19 is put into the communicating pipe 7 at the upper end of the threaded air duct 4, and the metal ball 19 slides along the inner wall of the threaded air duct 4 under the action of its own gravity until it flows out from the communicating pipe 7 at the air outlet end of the threaded air duct 4, at this time, the traction rope two 21 is located inside the threaded air duct 4, and the cloth bundle or elastic sponge is located at the inlet of the upper communicating pipe 7, after the metal ball 19 is subjected to the action of the pulling force, it will move along the inner wall of the threaded air duct 4 with the traction rope two 21 and the cloth bundle or elastic sponge, so as to clean the dust on the inner wall of the threaded air duct 4, and avoid the accumulation of too much dust to form a layered structure.
[0035] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A kiln tail steam attemperator, characterised in that: The utility model provides a water collecting tank (1) is provided with drain pipe (2) in the lower end, and the side of water collecting tank (1) is provided with inlet pipe (3), the inside fixed connection of water collecting tank (1) has screw thread -like air duct (4), the air inlet end and the air outlet end of screw thread -like air duct (4) are all arranged in the upper end and the lower end of one side of water collecting tank (1), and the upper end of water collecting tank (1) is fixedly connected with support plate (5), and the side of water collecting tank (1) is hinged with tank cover (6), and the support plate (5) is fixedly connected with stirring mechanism, and the air inlet end and the air outlet end of screw thread -like air duct (4) are all connected with communicating pipe (7), and the communicating pipe (7) is connected with sealing mechanism, and the support plate (5) is fixedly connected with drive mechanism, and the drive mechanism is detachably connected with cleaning assembly for cleaning screw thread -like air duct (4).
2. A kiln tail steam attemperator according to claim 1, characterised in that: The upper end and the lower end of the screw thread -like air duct (4) are both inclined.
3. A kiln tail steam attemperator according to claim 1 or 2, characterised in that: The stirring mechanism comprises a drive one (8) fixedly connected to the support plate (5), a rotating shaft one (9) fixedly connected to the drive one (8), and a plurality of stirring blades (10) fixedly connected to the rotating shaft one (9).
4. A kiln tail steam attemperator according to claim 1 or 2, characterised in that: The sealing mechanism comprises an outer threaded pipe (11) fixedly connected to the front end of the communicating pipe (7), an inner threaded pipe (12) threadedly connected to the outer threaded pipe (11), and a baffle (13) fixedly connected to the front end of the inner threaded pipe (12).
5. A kiln tail steam attemperator according to claim 3, characterised in that: The drive mechanism comprises a drive two (14) fixedly connected to the support plate (5), a rotating shaft two (15) fixedly connected to the output end of the drive two (14), a winding roller (16) fixedly connected to the rotating shaft two (15), a traction rope one (17) fixedly connected to the winding roller (16), and a bolt (18) fixedly connected to the output end of the traction rope one (17).
6. A kiln tail steam attemperator according to claim 5, characterised in that: The drive one (8) is an electric motor, and the drive two (14) is a forward-reverse motor.
7. A kiln tail steam attemperator according to claim 5, characterised in that: The cleaning assembly comprises a metal ball (19) having a threaded hole (20) matching the bolt (18) formed in the upper end, a traction rope two (21) fixedly connected to the metal ball (19), and a cloth bundle or an elastic sponge fixedly connected to the output end of the traction rope two (21).