Partitioning device for gas-collecting hood of circular cooler
By designing the ring-cooling air collector hood partition device, the baffle mechanism and drive mechanism are used to achieve smooth flow of hot gas, which solves the problem of insufficient utilization of high-temperature flue gas resources in the ring-cooling system, and improves the efficiency of heat and the safety of equipment.
Patent Information
- Application Number
- CN202421861087.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-02
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-08-02
AI Technical Summary
The high-temperature flue gas resources in the ring-cooling machine system are not fully utilized, resulting in loss of heat efficiency and increased equipment pressure, and may even cause safety accidents.
A ring-cooling air hood partition device is designed, including an upper fixing plate, a baffle mechanism and a driving mechanism, which is alternately connected or closed through the long through holes of the inner baffle and the outer baffle to avoid complete free flow of hot gas or excessive accumulation of high temperature heat.
The smooth circulation of hot gas in high-temperature zones, medium-temperature zones and low-temperature zones is achieved, preventing heat waste and sharp increase in equipment pressure, ensuring effective circulation and reuse of heat.
Smart Images
Figure CN222993509U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heat recovery devices for annular cooler, in particular to a partition device for the air collecting hood of an annular cooler. Background Technique
[0002] At present, the thermal power company faces a significant technical challenge during operation, that is, the thermal power generation unit per ton of ore has poor performance. The core reason for this situation is the failure to fully and effectively utilize the high-temperature flue gas resources in the annular cooler system. Specifically, a large amount of high-temperature flue gas contained in the sealing hood of the annular cooler has not maximally converted its temperature potential into the thermal energy required for power generation. During the process of these high-temperature flue gases entering the boiler for reuse through the designed high-temperature flue and medium-temperature flue, there are significant efficiency losses.
[0003] The root cause of the problem is that part of the heat is transported by the crawler of the annular cooler to the low-temperature area and discharged through the low-temperature flue. To alleviate this problem, partition baffles are installed in the annular cooler sealing hood between different temperature regions (high-temperature region and medium-temperature region, medium-temperature region and low-temperature region) in the existing design. The original intention of these baffles is to prevent the disorderly flow of heat and avoid the direct intrusion of high-temperature heat into the low-temperature area, thereby reducing unnecessary heat loss. However, in actual operation, this design also brings a series of side effects. When the hot waste gas of sintered ore in the high-temperature area has extremely high temperature and carries a large amount of heat, the blocking effect of the partition baffle causes the heat to not smoothly transition to the medium-temperature area, and part of the heat is forced to overflow from positions such as the feed port, directly affecting the effective circulation and reuse of heat in the entire annular cooler system.
[0004] If a baffle is added at the feed port end of the high-temperature area to accumulate the high-temperature heat in the high-temperature area and prevent it from flowing, if the high-temperature heat accumulates excessively in the high-temperature area and cannot be timely diverted through the high-temperature flue, it will not only cause a sharp increase in the internal pressure, increase the pressure load borne by the equipment, but also may lead to equipment failures or even safety accidents, posing a potential threat to the production environment and personnel safety. Summary of the Invention
[0005] The purpose of the utility model is to provide a partition device for the air collecting hood of an annular cooler in view of the above deficiencies of the prior art, so as to achieve the purpose that hot air can intermittently circulate between the high-temperature area and the medium-temperature area, and between the medium-temperature area and the low-temperature area.
[0006] The gas collection hood zoning device of the annular cooler provided by the utility model includes an upper fixing plate, a baffle mechanism and a driving mechanism. The baffle mechanism includes an outer baffle and an inner baffle. A plurality of long strip through holes are respectively arranged on the outer baffle and the inner baffle. A rectangular cavity with an open lower end is arranged on the outer baffle, and the rectangular cavity of the outer baffle communicates with the rectangular through hole; the long strip through holes on the inner baffle correspond to the long strip through holes on the outer baffle. The inner baffle is placed in the rectangular cavity of the outer baffle. The upper end of the inner baffle is connected with the upper end wall of the rectangular cavity of the outer baffle through a first spring. The long strip through holes on the inner baffle and the long strip through holes on the outer baffle are arranged in an alternating manner, and the long strip through holes of the two block and shield each other; a rectangular guide groove is arranged on the lower end wall of the upper fixing plate, and the upper end of the outer baffle is placed in the rectangular guide groove of the upper fixing plate; a driving mechanism is installed at the lower end of the outer baffle. The driving mechanism includes a rolling wheel, a cam and a guide plate. The outer baffle is provided with a first placement cavity and a second placement cavity with open lower ends. A rolling wheel is installed in the first placement cavity, and the lower end of the rolling wheel exposes the lower end opening of the first placement cavity. A cam is installed in the second placement cavity. The rolling wheel is connected with the cam through a connecting shaft; the upper end of the second placement cavity of the outer baffle communicates with the rectangular cavity, and a guide plate is fixedly installed at the lower end of the inner baffle, and the lower end of the guide plate abuts against the cam.
[0007] Further, the upper end of the outer baffle is connected with the top wall of the rectangular guide groove of the upper fixing plate through a second spring.
[0008] Further, a plurality of guide rods are installed on the top wall of the rectangular guide groove of the upper fixing plate. The upper end of the outer baffle is provided with guide blind holes, the guide rods are inserted into the guide blind holes, and the second spring is sleeved on the outside of the guide rods.
[0009] Further, side support plates are respectively installed at both ends of the upper fixing plate. Slideways are arranged on the side support plates, and both ends of the outer baffle are placed in the slideways of the side support plates and are in sliding fit with the slideways.
[0010] Further, the lower end of the guide plate is in rotational fit with a guide wheel, and the guide wheel is placed on the cam.
[0011] Further, a partition plate is installed at the middle position of the rectangular cavity of the outer baffle. The partition plate divides the rectangular cavity and the long strip through holes of the outer baffle into two parts. Inner baffles are respectively installed in the two rectangular cavities of the outer baffle. The outer baffle is also provided with two groups of first placement cavities and second placement cavities. A set of driving mechanisms are respectively installed in each group of first placement cavities and second placement cavities, and each group of driving mechanisms is respectively connected with the corresponding inner baffle.
[0012] Further, the second placement cavity of the outer baffle is located at the middle position of the inner baffle, the cam is installed at the middle position of the inner baffle, and the guide plate is installed at the middle position of the inner baffle.
[0013] Compared with the prior art, the utility model has the following outstanding beneficial effects:
[0014] 1. The baffle mechanism of the utility model includes an inner baffle and an outer baffle. Through the driving mechanism, the long strip-shaped through holes of the inner baffle and the outer baffle can be alternately communicated or closed, which can not only prevent the hot air from flowing freely completely, but also prevent the high-temperature heat from accumulating excessively in a certain area and being unable to be drained in time, resulting in a sharp increase in the internal pressure;
[0015] 2. The rectangular cavity and the long strip-shaped through hole of the outer baffle of the utility model are divided into two parts. Inner baffles are respectively installed in the two rectangular cavities of the outer baffle, and the inner baffles are respectively driven by corresponding driving mechanisms. The rolling wheels of the driving mechanisms located at the inner end are in contact with the inner side rail of the rotary frame, and the rolling wheels of the driving mechanisms located at the outer end are in contact with the outer side rail of the rotary frame. Due to the different rotation speeds of the inner side rail and the outer side rail of the rotary frame of the annular cooler, the two inner baffles can be driven by their respective corresponding driving mechanisms, which can avoid mutual interference. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a schematic structural diagram of the utility model;
[0017] Figure 2 is the front view of the utility model;
[0018] Figure 3 is the internal structure diagram of the utility model;
[0019] Wherein, 1. upper fixing plate, 11. side support plate, 12. guide rod, 13. second spring, 2. baffle mechanism, 21. outer baffle, 211. partition plate, 22. inner baffle, 23. first spring, 3. driving mechanism, 31. rolling wheel, 32. connecting shaft, 33. guide plate, 34. guide wheel, 35. cam. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0020] The utility model will be further described below in conjunction with the specification drawings and specific embodiments.
[0021] As Figure 1 and 2 shown, the utility model includes an upper fixing plate 1, a baffle mechanism 2 and a driving mechanism 3.
[0022] The baffle mechanism 2 includes an outer baffle 21 and an inner baffle 22. The outer baffle 21 is provided with a plurality of long strip-shaped through holes uniformly distributed in the up and down direction. The outer baffle 21 is provided with a rectangular cavity with an open lower end, and the rectangular cavity of the outer baffle 21 communicates with the rectangular through hole.
[0023] The inner baffle 22 is provided with a plurality of elongated through holes uniformly distributed in the up and down directions. The elongated through holes on the inner baffle 22 correspond to the elongated through holes on the outer baffle 21. The inner baffle 22 is placed in the rectangular cavity of the outer baffle 21, and the inner baffle 22 can slide in the up and down directions of the rectangular cavity of the outer baffle 21. The upper end of the inner baffle 22 is connected to the upper end wall of the rectangular cavity of the outer baffle 21 through a first spring 23. The elongated through holes of the inner baffle 22 and the elongated through holes of the outer baffle 21 are arranged in an interlaced manner, so that the elongated through holes of the two cover and block each other.
[0024] A rectangular guide groove is provided on the lower end wall of the upper fixing plate. The upper end of the outer baffle 21 is placed in the rectangular guide groove of the upper fixing plate, and the two are in sliding fit. A second spring 13 is connected between the upper end of the outer baffle 21 and the top wall of the rectangular guide groove of the upper fixing plate.
[0025] A plurality of guide rods 12 are installed on the top wall of the rectangular guide groove of the upper fixing plate. The upper end of the outer baffle 21 is provided with guide blind holes, and the guide rods 12 are inserted into the guide blind holes. The second spring 13 is sleeved on the outside of the guide rods 12.
[0026] In the optimized solution, side support plates 11 are respectively installed at both ends of the upper fixing plate. Slideways are provided on the side support plates 11. The two ends of the outer baffle 21 are placed in the slideways of the side support plates 11 and are in sliding fit with the slideways.
[0027] As Figure 3 As shown in the figure, a driving mechanism 3 is installed at the lower end of the outer baffle 21. The driving mechanism 3 includes a rolling wheel 31, a cam 35 and a guide plate 33. The outer baffle 21 is provided with a first placement cavity and a second placement cavity with an open lower end. The rolling wheel 31 is installed in the first placement cavity, and the lower end of the rolling wheel 31 exposes the lower end opening of the first placement cavity. The cam 35 is installed in the second placement cavity. The rolling wheel 31 is connected to the cam 35 through a connecting shaft 32. Both ends of the connecting shaft 32 are rotatably fitted with the cavity wall of the outer baffle 21.
[0028] The upper end of the second placement cavity of the outer baffle 21 communicates with the rectangular cavity. A guide plate 33 is fixedly installed at the lower end of the inner baffle 22, and the lower end of the guide plate 33 abuts against the cam 35.
[0029] In the optimized solution, the lower end of the guide plate 33 is rotatably fitted with a guide wheel 34, and the guide wheel 34 is placed on the cam 35.
[0030] In the optimization solution, a partition plate 211 is installed at the middle position of the rectangular cavity of the outer baffle 21. The partition plate 211 divides the rectangular cavity and the long strip through hole of the outer baffle 21 into two parts. Inner baffles 22 are respectively installed in the two rectangular cavities of the outer baffle 21. The outer baffle 21 is also provided with two groups of first placement cavities and second placement cavities. A set of driving mechanisms 3 are respectively installed in each group of first placement cavities and second placement cavities. Each set of driving mechanisms 3 is respectively connected to the corresponding inner baffle 22 to drive the inner baffle 22 to reciprocate.
[0031] The second placement cavity of the outer baffle 21 is located at the middle position of the inner baffle 22, so that the cam 35 is installed at the middle position of the inner baffle 22, and the guide plate 33 is installed at the middle position of the inner baffle 22. Thus, during the rotation of the cam 35, the middle position of the inner baffle 22 can be forced through the guide plate 33, avoiding uneven force on the inner baffle 22 and affecting the movement of the inner baffle 22.
[0032] The operation process is as follows: Install the present utility model at the demarcation position between the high-temperature zone and the medium-temperature zone, and between the medium-temperature zone and the low-temperature zone. Fix the upper fixing plate 1 to the upper end wall of the sealing cover, and fix the two side support plates 11 to the inner side walls of the sealing cover respectively. The second spring 13 presses the rolling wheel 31 at the inner end of the present utility model against the inner railing of the rotary support of the annular cooler, and places the rolling wheel 31 at the outer end of the present utility model on the outer railing of the rotary support of the annular cooler. When the rotary frame of the annular cooler rotates, it drives the railing to rotate simultaneously. During the rotation of the railing, it drives the rolling wheel 31 to rotate. The rotation of the rolling wheel 31 drives the cam 35 to rotate through the connecting shaft 32. When the protruding part of the cam 35 contacts the guide plate 33, it drives the inner baffle 22 to move upward through the guide plate 33, squeezing the first spring 23, so that the long strip through holes of the inner baffle 22 and the outer baffle 21 gradually coincide, forming a ventilation channel between the high-temperature zone and the medium-temperature zone or between the medium-temperature zone and the low-temperature zone of the annular cooler, enabling hot air to flow from the high-temperature zone into the medium-temperature zone or from the medium-temperature zone into the low-temperature zone. When the protruding part of the cam 35 disengages from the guide plate 33, the first spring 23 resets, driving the inner baffle 22 to move downward and reset, closing the inner baffle 22 and the outer baffle 21 again. During the continuous rotation of the cam 35, the inner baffle 22 continuously reciprocates up and down, causing the long strip through holes of the inner baffle 22 and the outer baffle 21 to be alternately connected and closed. This can not only block part of the hot air from entering the medium-temperature zone from the high-temperature zone or from the medium-temperature zone into the low-temperature zone, but also prevent excessive accumulation of high-temperature heat in a certain area and the inability to drain it in time, resulting in a sharp increase in internal pressure.
[0033] It should be noted that specific implementation schemes of the present utility model have been described in detail. For those skilled in the art, various obvious changes made to it without departing from the spirit and scope of the present utility model are within the protection scope of the present utility model.
Claims
1. The hood partition device of the ring cooler is characterized by: The invention comprises an upper fixing plate (1), a baffle mechanism (2) and a driving mechanism (3), wherein the baffle mechanism (2) comprises an outer baffle (21) and an inner baffle (22), wherein the outer baffle (21) and the inner baffle (22) are respectively provided with a plurality of elongated through holes, wherein the outer baffle (21) is provided with a rectangular cavity with an opening at the lower end, and the rectangular cavity of the outer baffle (21) is connected with the rectangular through holes; the elongated through holes on the inner baffle (22) correspond to the elongated through holes on the outer baffle (21), the inner baffle (22) is placed in the rectangular cavity of the outer baffle (21), the upper end of the inner baffle (22) is connected to the upper end wall of the rectangular cavity of the outer baffle (21) via a first spring (23), the elongated through holes of the inner baffle (22) and the elongated through holes of the outer baffle (21) are arranged in an interlaced manner, and the elongated through holes of the two shield and block each other; the upper baffle (21) is provided with a plurality of elongated through holes of the inner baffle (21) and the inner baffle (22) are arranged in an interlaced manner, and the elongated through holes of the two shield and block each other; A rectangular guide groove is provided on the lower end wall of the fixed plate, and the upper end of the outer baffle plate (21) is placed in the rectangular guide groove of the upper fixed plate; a driving mechanism (3) is installed at the lower end of the outer baffle plate (21), and the driving mechanism (3) comprises a rolling wheel (31), a cam (35) and a guide plate (33); the outer baffle plate (21) is provided with a first placement cavity with a lower end opening and a second placement cavity; the first placement cavity is provided with a rolling wheel (31), and the lower end of the rolling wheel (31) is exposed from the lower end opening of the first placement cavity; the second placement cavity is provided with a cam (35), and the rolling wheel (31) is connected to the cam (35) via a connecting shaft (32); the upper end of the second placement cavity of the outer baffle plate (21) is connected to the rectangular cavity; the lower end of the inner baffle plate (22) is fixedly provided with a guide plate (33), and the lower end of the guide plate (33) is pressed against the cam (35).
2. The air collecting hood partition device of the annular cooler according to claim 1 is characterized in that: The upper end of the outer baffle plate (21) is connected to the top wall of the rectangular guide groove of the upper fixing plate via a second spring (13).
3. The air collecting hood partitioning device of the annular cooler according to claim 2 is characterized in that: A plurality of guide rods (12) are mounted on the top wall of the rectangular guide groove of the upper fixing plate, a guide blind hole is provided at the upper end of the outer baffle plate (21), the guide rods (12) are inserted into the guide blind hole, and the second spring (13) is sleeved on the outer side of the guide rods (12).
4. The air collecting hood partitioning device of the annular cooler according to claim 1 is characterized in that: Side support plates (11) are respectively installed at both ends of the upper fixed plate, and slideways are provided on the side support plates (11). Both ends of the outer baffle plate (21) are placed in the slideways of the side support plates (11) and slide in cooperation with the slideways.
5. The air collecting hood partitioning device of the annular cooler according to claim 1 is characterized in that: The lower end of the guide plate (33) is rotatably matched with the guide wheel (34), and the guide wheel (34) is placed on the cam (35).
6. The air collecting hood partition device of the annular cooler according to claim 1 is characterized in that: A partition (211) is installed in the middle of the rectangular cavity of the outer baffle plate (21), and the partition (211) divides the rectangular cavity and the long strip-shaped through hole of the outer baffle plate (21) into two parts. Inner baffle plates (22) are installed in the two rectangular cavities of the outer baffle plate (21), respectively. The outer baffle plate (21) is also provided with two groups of first placement cavities and second placement cavities, and each group of the first placement cavities and the second placement cavities is respectively installed with a group of driving mechanisms (3), and each group of driving mechanisms (3) is respectively connected to the corresponding inner baffle plate (22).
7. The air collecting hood partitioning device of the annular cooler according to claim 1 or 6, characterized in that: The second placement cavity of the outer baffle plate (21) is located at the middle position of the inner baffle plate (22), the cam (35) is installed at the middle position of the inner baffle plate (22), and the guide plate (33) is installed at the middle position of the inner baffle plate (22).