Upper sealing assembly and circular cooler

Abstract

The invention discloses an upper sealing assembly and a circular cooler, relates to the technical field of circular coolers, and mainly aims at solving the problems of sealing deformation and leakage caused by the fact that a water tank moves along with a trolley breast board and cannot store too much water. According to the main technical scheme, the upper sealing assembly is used for the circular cooler, the circular cooler comprises a sealing cover, a trolley breast board and a rotary frame, the sealing cover is arranged above the trolley breast board, the trolley breast board and the rotary frame are relatively fixed, the upper sealing assembly comprises a water tank and an insertion plate, and the insertion plate is arranged in the water tank. The water tank is arranged on the side wall of the sealing cover, the inserting plate and the trolley breast board are relatively fixed, and at least part of the inserting plate is inserted into the water tank.

Description

Technical Field

[0001] The invention belongs to the technical field of annular coolers, and in particular relates to an upper sealing component and annular coolers. Background Art

[0002] At present, most of the sintering ore cooling in domestic sintering plants adopts ring coolers, and the use of water seals in ring coolers is gradually becoming a trend. In today's mainstream ring cooler sealing system, there are upper seals and lower seals. Among them, the upper seal is realized by setting a water tank on the moving trolley railing and setting a plug on the sealing cover. The purpose of sealing the flue gas is achieved by inserting the plug into the water in the water tank.

[0003] However, in actual applications, since the water tank moves with the trolley railing, it cannot hold too much water, which can easily cause the seal to deform during operation, leading to leakage. At the same time, the weight of the water tank and the water is a non-negligible load on the rotating body, which increases the driving power of the entire equipment. Summary of the invention

[0004] In view of this, an embodiment of the present invention provides an upper sealing assembly and an annular cooler, the main purpose of which is to avoid the sealing deformation and leakage caused by the water tank being unable to store too much water as the trolley railing moves.

[0005] In order to achieve the above object, the present invention mainly provides the following technical solutions:

[0006] A first aspect of the present invention provides an upper sealing assembly for a ring cooler, the ring cooler comprising a sealing cover, a trolley guardrail and a rotating frame, the sealing cover being arranged above the trolley guardrail, the trolley guardrail being relatively fixed to the rotating frame, the upper sealing assembly comprising a water trough and an insert plate, the water trough being arranged on the side wall of the sealing cover, the insert plate being relatively fixed to the trolley guardrail, and at least a portion of the insert plate being inserted into the water trough.

[0007] Optionally, the plug plate is a multi-section bending structure to form a tortuous airflow path.

[0008] Optionally, the plug plate includes a first section, a second section, a third section and a fourth section, the first section is connected to the trolley guardrail, the first section extends in the radial direction of the ring cooler toward the direction away from the trolley guardrail, the second section is connected to the first section, the second section extends in the axial direction of the ring cooler toward the sealing cover, the third section is connected to the second section, the third section extends in the radial direction of the ring cooler toward the sealing cover, the fourth section is connected to the third section, the fourth section extends in the axial direction of the ring cooler toward the trolley guardrail, and the fourth section is used to be inserted into the water tank.

[0009] Optionally, a first baffle and a second baffle are sequentially arranged in the airflow path along the flow direction, and an extension direction of the first baffle is opposite to an extension direction of the second baffle, so as to form a labyrinth seal.

[0010] Optionally, the labyrinth seal further includes a third baffle, which is disposed at the inlet of the airflow path and extends in the same direction as the second baffle.

[0011] Optionally, the labyrinth seal further includes a fourth baffle, which is arranged on the downstream side of the second baffle along the flow direction, and the fourth baffle is perpendicular to the flow direction.

[0012] Optionally, a dust removal groove is provided on the first section, and a dust removal hand hole is provided at the bottom of the dust removal groove.

[0013] Optionally, the cross-sectional area of ​​the dust reduction trough gradually decreases in the downward direction.

[0014] Optionally, the plug plate also includes a fifth section, one end of the fifth section is connected to the first section, and the other end is connected to the second section, the fifth section is inclined, and the fifth section is used to guide dust particles in the airflow to fall into the dust reduction groove.

[0015] A second aspect of the present invention provides a ring cooler, comprising an upper sealing assembly as described above.

[0016] By means of the above technical solution, the present invention has at least the following beneficial effects:

[0017] The embodiment of the present invention provides an upper sealing assembly and an annular cooler, wherein the upper sealing assembly avoids the sealing deformation and leakage problems caused by the water tank that moves with the trolley railing in the traditional sealing method not being able to store too much water by fixing the plug plate relatively to the trolley railing and partially inserting it into the water tank set on the side wall of the sealing cover, greatly improving the sealing performance of the annular cooler and effectively preventing smoke leakage. At the same time, the water tank is set on a relatively fixed sealing cover, which reduces the load on the moving parts such as the rotating frame and the trolley railing, reduces the driving power of the entire equipment operation, reduces energy consumption, and improves the operation efficiency and economy of the equipment. In addition, by setting a labyrinth seal in the airflow path formed by the upper sealing assembly, the airflow direction of the dust-containing airflow can be continuously changed when it flows in the labyrinth seal, so that the movement trajectory of the dust particles becomes more complicated. In practical applications, the dust particles are more likely to collide with the baffles constituting the labyrinth seal under the action of inertia, thereby losing kinetic energy and settling down, so as to achieve the purpose of reducing the dust content when the airflow enters the water tank, so that the sludge in the water tank is greatly reduced, the dredging workload is reduced and the dredging cycle is extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of a ring cooler according to an optional embodiment of the present invention;

[0019] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0020] Figure 3 It is a schematic structural diagram of a dust reduction trough of an optional embodiment of the present invention.

[0021] The reference numerals are as follows:

[0022] 1. Sealing cover; 2. Trolley guardrail; 3. Rotating frame; 4. Water tank; 5. Insert plate; 51. First section; 52. Second section; 53. Third section; 54. Fourth section; 55. Fifth section; 6. First baffle; 7. Second baffle; 8. Third baffle; 9. Fourth baffle; 10. Dust suppression trough; 11. Dust discharge hand hole. DETAILED DESCRIPTION

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0027] See also Figures 1 to 3 As shown, an embodiment of the first aspect of the present invention provides an upper sealing assembly, and an embodiment of the second aspect of the present invention provides a ring cooler.

[0028] The upper sealing assembly is used for a ring cooler, and the ring cooler may be a blast-type ring cooler, an exhaust-type ring cooler, etc., and the present invention does not limit this.

[0029] Specifically, the annular cooler includes but is not limited to a feeding device, a rotary device, a driving device, a discharging device, a sealing device, etc. The above-mentioned devices cooperate with each other so that the annular cooler can operate efficiently and stably. It should be noted that the feeding device is composed of a feeding funnel and a conveying mechanism, which can accurately control the feeding speed and flow rate to ensure that the material is evenly distributed on the trolley. The rotary device is composed of a trolley and a rotary frame 3. The trolley is responsible for carrying the material to be cooled and performs a circular motion driven by the rotary frame 3. The driving device is connected to the rotary device, provides strong power for the rotary device, and can accurately control the rotation speed to adapt to the material cooling rhythm under different production requirements. The discharging device includes a discharging scraper and a discharging hopper. The discharging scraper can scrape the cooled material from the trolley, and the scraped material flows in the discharging hopper, so that the cooled material can be discharged from the annular cooler in a timely and smooth manner. The sealing device is divided into an upper sealing component and a lower sealing component. The upper sealing component is placed at the junction of the sealing cover 1 and the trolley guardrail 2, which can prevent the gas and dust inside the annular cooler from leaking to the external environment, and prevent the external air from entering the annular cooler, providing a solid and reliable sealing guarantee for the efficient operation of the annular cooler. The lower sealing component is set at the connection between the trolley and other components, which can maintain the pressure balance inside the equipment, thereby improving the cooling efficiency and energy utilization.

[0030] In the embodiments provided by the present invention, see Figure 2 As shown, the upper sealing component includes a water tank 4 and an inserting plate 5. The water tank 4 is arranged on the side wall of the sealing cover 1. The inserting plate 5 is relatively fixed to the trolley guardrail 2, and at least a part of the inserting plate 5 is inserted into the water tank 4.

[0031] By fixing the plug plate 5 relatively to the trolley guardrail 2 and partially inserting it into the water tank 4 set on the side wall of the sealing cover 1, the sealing deformation and leakage problems caused by the water tank 4 moving with the trolley guardrail 2 in the traditional sealing method cannot store too much water are avoided, which greatly improves the sealing performance of the ring cooler and effectively prevents smoke leakage. At the same time, setting the water tank 4 on the relatively fixed sealing cover 1 reduces the load on the moving parts such as the revolving frame 3 and the trolley guardrail 2, reduces the driving power of the entire equipment, reduces energy consumption, and improves the operating efficiency and economy of the equipment.

[0032] The trolley guardrail 2 is arranged around the revolving frame 3 and moves with the rotation of the revolving frame 3 to realize the process of continuous cooling of the material. The sealing cover 1 is located above the trolley guardrail 2 and is used to seal and protect the internal structure of the annular cooler to prevent external impurities from entering the annular cooler, and also helps to maintain the stability of the working environment inside the annular cooler.

[0033] Among them, the water tank 4 is arranged on the side wall of the sealing cover 1. It can be understood that in actual application, the sealing cover 1 always remains stationary, and the water tank 4 is arranged on the side wall of the sealing cover 1, so that the water tank 4 is in a relatively fixed state, and will not move with the moving parts such as the trolley guardrail 2, thereby being able to increase the height of the water tank 4, that is, the water storage capacity, and better prevent the leakage of gas and dust inside the ring cooler, and at the same time, it can also more effectively prevent external air from entering the inside of the ring cooler. In addition, since the water tank 4 no longer moves with the moving parts, its stability is greatly improved. This not only reduces the risk of sealing failure caused by the shaking of the water tank 4, but also reduces the impact on the overall structure of the equipment. During the operation of the ring cooler, no additional vibration and noise will be generated due to the movement of the water tank 4, creating good conditions for the smooth operation of the ring cooler.

[0034] The plug plate 5 is arranged at the upper edge of the trolley guardrail 2, and at least a part of the plug plate 5 is inserted into the water tank 4. It can be understood that in actual application, when the trolley guardrail 2 moves, the plug plate 5 also moves accordingly, and the part of the plug plate 5 inserted into the water tank 4 forms a dynamic sealing structure with the water tank 4, thereby preventing the gas, dust, etc. inside the annular cooler from leaking to the external environment, and preventing the external air from entering the annular cooler, thereby achieving the purpose of improving the sealing performance of the annular cooler.

[0035] In some possible implementations of the present invention, see Figure 2 As shown, the plug board 5 is a multi-section bending structure to form a zigzag airflow path.

[0036] By setting the plug plate 5 as a multi-section bending structure, the airflow cannot flow in a straight line when passing through the upper sealing component, but is forced to constantly change direction along the bend of the plug plate 5. On the one hand, the tortuous airflow path increases the resistance of the airflow flow, making it more difficult for the airflow to pass through the upper sealing component, thereby enhancing the sealing effect. On the other hand, the multi-section bending structure of the plug plate 5 also means that even if a small amount of airflow attempts to pass through the upper sealing component, its speed will be greatly reduced due to the tortuosity of the airflow path, reducing the impact and damage of the airflow on the upper sealing component, and further ensuring the sealing performance of the annular cooler.

[0037] In some specific embodiments, the shape of the plug plate 5 is similar to a wave, with continuous arc bends, so that the airflow constantly changes direction when passing through, and due to the arc surface, the airflow flows more smoothly, reducing the generation of local vortices.

[0038] In other specific examples, the plug plate 5 is composed of a plurality of flat plate segments of different heights, and a step shape is formed between adjacent flat plate segments, so that when the airflow passes through the stepped plug plate 5, it needs to rise or fall step by step, thereby changing the flow direction to achieve the best sealing effect and airflow resistance balance.

[0039] In some possible implementations of the present invention, see Figure 2 As shown, the plug plate 5 includes a first section 51, a second section 52, a third section 53 and a fourth section 54. The first section 51 is connected to the trolley guardrail 2, and the first section 51 extends in the radial direction of the annular cooler toward the direction away from the trolley guardrail 2. The second section 52 is connected to the first section 51, and the second section 52 extends in the axial direction of the annular cooler toward the sealing cover 1. The third section 53 is connected to the second section 52, and the third section 53 extends in the radial direction of the annular cooler toward the sealing cover 1. The fourth section 54 is connected to the third section 53, and the fourth section 54 extends in the axial direction of the annular cooler toward the trolley guardrail 2. The fourth section 54 is used to be inserted into the water tank 4.

[0040] The first section 51, the second section 52, the third section 53 and the fourth section 54 can provide multiple blocking effects on airflow and dust. When the airflow passes through the connection of each section of the plug plate 5, the direction is constantly changed, which increases the resistance of the airflow, making it more difficult for the gas and dust inside the ring cooler to leak into the external environment, and also preventing the external air from entering the ring cooler.

[0041] The first section 51 is the joint portion between the plug plate 5 and the trolley guardrail 2 . The first section 51 is connected to the trolley guardrail 2 to fix the plug plate 5 .

[0042] Specifically, the first section 51 extends from the center of the ring cooler toward the edge, so that the plug plate 5 starts to expand outward from the trolley guardrail 2, providing initial support and guidance for the subsequent segmented structure.

[0043] The second section 52 is connected to the first section 51 , which can ensure the continuity and integrity of the structure of the plug board 5 .

[0044] Specifically, the second section 52 extends in a direction parallel to the rotation axis of the annular cooler toward the sealing cover 1 , so that the insert plate 5 begins to approach the sealing cover 1 , preparing for subsequent sealing cooperation with the sealing cover 1 .

[0045] The third section 53 is connected to the second section 52 , so as to maintain the continuity of the structure of the plug board 5 .

[0046] Specifically, the third section 53 extends from the outer edge of the annular cooler toward the center, so that the plug plate 5 can be close to the sealing cover 1, and the position and angle of the plug plate 5 are further adjusted to better meet the sealing requirements with the sealing cover 1.

[0047] The fourth section 54 is connected to the third section 53 to complete the overall pluggable structure.

[0048] Specifically, the fourth section 54 extends in a direction parallel to the rotation axis of the ring cooler toward the direction close to the trolley guardrail 2, so that the fourth section 54 can eventually be inserted into the water tank 4 to achieve a sealed fit between the plug plate 5 and the water tank 4.

[0049] In some possible implementations of the present invention, see Figure 2 As shown, a first baffle 6 and a second baffle 7 are sequentially arranged in the airflow path along the flow direction, and the extension direction of the first baffle 6 is opposite to the extension direction of the second baffle 7 to form a labyrinth seal.

[0050] By setting the first baffle 6 and the second baffle 7, the airflow must change direction several times when passing through, forming a maze-like structure, which has multiple blocking effects on the airflow and increases the flow resistance of the airflow. Even if a small amount of gas can pass through the first baffle 6, it will be blocked again when it encounters the second baffle 7, reducing the risk of leakage of the upper sealing component. At the same time, when the airflow containing dust flows in the labyrinth seal, the movement trajectory of the dust particles becomes more complicated due to the continuous change of the airflow direction. Dust particles are more likely to collide with the baffle under the action of inertia, thereby losing kinetic energy and settling down, so as to achieve the purpose of reducing the dust content when the airflow enters the water tank 4, so that the sludge in the water tank 4 is greatly reduced, the dredging workload is reduced and the dredging cycle is extended.

[0051] Among them, see Figure 2As shown, the airflow path is a channel surrounded by the plug plate 5, the trolley guardrail 2, the sealing cover 1, and the water tank 4 on the sealing cover 1. When the annular cooler is running, the gas inside the annular cooler may try to leak to the external environment, or the external air may want to enter the annular cooler, and these airflows will flow in the channel.

[0052] When the airflow flows in the airflow path, it first encounters the first baffle 6 and then encounters the second baffle 7 .

[0053] Specifically, the extension direction of the first baffle 6 is opposite to the extension direction of the second baffle 7. For example, if the first baffle 6 is tilted upward, the second baffle 7 may be tilted downward. Such opposite extension directions require the airflow to undergo a significant change in direction when passing through the first baffle 6 and the second baffle 7, thereby increasing the flow resistance of the airflow and achieving a good sealing effect.

[0054] In this embodiment, the first baffle 6 is arranged on the first section 51, and the first baffle 6 extends in the axial direction of the ring cooler toward the direction close to the water tank 4; the second baffle 7 is arranged at the bottom of the water tank 4, and the second baffle 7 extends in the axial direction of the ring cooler toward the direction close to the first section 51.

[0055] In some possible implementations of the present invention, see Figure 2 As shown, the labyrinth seal further includes a third baffle plate 8 , which is disposed at the inlet of the airflow path, and the third baffle plate 8 and the second baffle plate 7 extend in the same direction.

[0056] By setting the third baffle 8, the first line of defense can be formed at the entrance of the airflow path, and the flow resistance of the airflow is further increased by working together with the first baffle 6 and the second baffle 7. When the airflow enters the airflow path, it first encounters the third baffle 8, and its flow direction is initially changed. Then it passes through the first baffle 6 and the second baffle 7 in sequence. Each time it passes through a baffle, it needs to change direction. This multiple blocking greatly increases the difficulty of gas leakage, thereby significantly improving the sealing performance. In addition, it is understandable that in the absence of the third baffle 8, the airflow may directly enter the airflow path with a large impact force, causing a large pressure on the baffle and sealing structure behind. The setting of the third baffle 8 can buffer the impact force of the airflow, so that the airflow is more evenly distributed in the entire labyrinth sealing structure, reducing the risk of sealing failure due to excessive local pressure. At the same time, when the airflow containing dust enters the airflow path, the third baffle 8 can cause a part of the dust to begin to settle at the entrance of the airflow path. Since the speed of the airflow decreases when it encounters the third baffle 8, the dust particles are more likely to collide with the baffle and settle under the action of inertia. This reduces the amount of dust that enters the labyrinth seal, lowering the risk of dust wear and clogging on the seal structure, while also helping to keep the working environment around the annular cooler clean.

[0057] The inlet of the airflow path is the starting point of the channel. In this embodiment, the inlet of the airflow path is the end of the airflow path connected to the inside of the annular cooler.

[0058] Specifically, a third baffle 8 is provided at the inlet of the airflow path, and the third baffle 8 extends in the same direction as the second baffle 7, that is, the extension direction of the third baffle 8 is opposite to the extension direction of the first baffle 6. In practical applications, when the airflow enters the airflow path, it is first blocked and changed in direction by the third baffle 8. Then, the airflow continues to flow in the airflow path, passing through the first baffle 6 and the second baffle 7 in sequence.

[0059] In this embodiment, the third baffle plate 8 is arranged at the bottom of the sealing cover 1, and the third baffle plate 8 extends in the axial direction of the ring cooler toward the direction close to the trolley guardrail 2.

[0060] In some possible implementations of the present invention, see Figure 2 As shown, the labyrinth seal further includes a fourth baffle 9, which is arranged on the downstream side of the second baffle 7 along the flow direction, and the fourth baffle 9 is perpendicular to the flow direction.

[0061] By setting the fourth baffle 9, another obstacle is added to the airflow path. After the airflow passes through the third baffle 8, the first baffle 6 and the second baffle 7, the original flow direction has been changed many times and the speed has also been reduced. At this time, the fourth baffle 9 perpendicular to the flow direction can more effectively block the continued flow of the airflow, greatly increasing the difficulty of the airflow passing through, thereby further improving the sealing performance and reducing the possibility of gas leakage. At the same time, after the airflow is blocked and the direction is changed by multiple baffles, the kinetic energy of the dust particles carried by the airflow gradually decreases. When the airflow encounters the vertical fourth baffle 9, the airflow speed will drop sharply, making it easier for the dust particles to settle under the action of gravity.

[0062] The flow direction is the flow direction of the airflow in the labyrinth seal.

[0063] Among them, see Figure 2 As shown, the fourth baffle 9 is perpendicular to the flow direction, so that when the airflow encounters the fourth baffle 9, due to its vertical direction, the airflow cannot continue to flow directly along the original direction and must change direction, thereby increasing the flow resistance of the airflow and improving the sealing performance of the labyrinth seal.

[0064] Specifically, in this embodiment, the fourth baffle plate 9 is disposed at the bottom of the water tank 4, and the fourth baffle plate 9 extends from the center of the annular cooler toward the edge.

[0065] In some possible implementations of the present invention, see Figure 2As shown, a dust reduction groove 10 is provided on the first section 51 , and a dust discharge hand hole 11 is provided at the bottom of the dust reduction groove 10 .

[0066] By setting up the dust removal trough 10, the settled dust particles can be collected, and the subsequent airflow is prevented from lifting the settled dust particles, and the dust content when the airflow enters the water tank 4 is reduced, so that the sludge in the water tank 4 is greatly reduced, the silt removal workload is reduced and the silt removal cycle is extended. The dust removal hand hole 11 is provided to provide a convenient channel for cleaning dust. When a certain amount of dust accumulates in the dust removal trough 10, it can be cleaned through the dust removal hand hole 11. It is understandable that the operator can use tools or manually remove the dust from the dust removal hand hole 11 to keep the dust removal trough 10 clean and ensure that it continues to effectively play the role of collecting dust.

[0067] The dust removal groove 10 is disposed on the first section 51, and has a certain depth and width to accommodate a certain amount of dust. The dust removal groove 10 can be rectangular, trapezoidal, etc., which is not limited in the present invention.

[0068] Specifically, the edge of the dust reduction trough 10 is higher than the bottom of the trough to prevent dust from easily overflowing under the action of the airflow.

[0069] The dust removal hand hole 11 is arranged at the bottom of the dust reduction trough 10. The dust removal hand hole 11 is a relatively small opening, and its size can allow the operator's hand or small tools to pass through, and the present invention is not limited to this.

[0070] Specifically, after the annular cooler has been running for a period of time, the operator can open the dust discharge hand hole 11, use a small shovel, broom or other tools to clean the dust in the dust removal trough 10 into a suitable container, and then carry out centralized treatment. In this way, the dust removal trough 10 can be kept clean and ensured to continue to effectively collect dust.

[0071] In the above embodiments, see Figure 3 As shown, the cross-sectional area of ​​the dust reduction chute 10 gradually decreases in the downward direction.

[0072] Specifically, as the cross-sectional area of ​​the dust removal trough 10 gradually decreases downward, the flow space of the airflow therein gradually becomes narrower. This will increase the airflow speed. According to Bernoulli's principle, the pressure will decrease when the airflow speed increases. This pressure difference will cause dust particles to settle to the bottom of the dust removal trough 10 more quickly, thereby improving the dust collection efficiency. At the same time, the narrow bottom space makes it less likely that the settled dust will be raised again. Even if there are airflow fluctuations, the disturbance to the dust will be reduced due to the limited space, thereby reducing the possibility of dust re-entering the airflow and ensuring the stability of dust collection.

[0073] In some possible implementations of the present invention, see Figure 2As shown, the plug plate 5 also includes a fifth section 55 , one end of the fifth section 55 is connected to the first section 51 , and the other end is connected to the second section 52 . The fifth section 55 is tilted and is used to guide dust particles in the airflow to fall into the dust reduction trough 10 .

[0074] The inclination of the fifth section 55 provides a specific flow direction for dust particles. When the airflow carries dust through the insert plate 5, the fifth section 55 can guide the dust to move toward the dust removal groove 10. Compared with the case without the fifth section 55, the dust is more likely to fall accurately into the dust removal groove 10 instead of randomly floating in the surrounding space, thereby improving the dust collection efficiency.

[0075] Specifically, the fifth section 55 can be inclined at a certain angle relative to the horizontal direction or the vertical direction, so that the airflow has a certain turn and speed change when passing through. This change helps dust particles to separate from the airflow and slide down the fifth section 55 into the dust reduction trough 10 under the action of gravity.

[0076] It is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0077] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention. The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present invention, and these improvements and variations should also be regarded as the protection scope of the present invention.

Claims

1. An upper sealing assembly for a ring cooler, the ring cooler comprising a sealing cover (1), a trolley guardrail (2) and a revolving frame (3), the sealing cover (1) being arranged above the trolley guardrail (2), the trolley guardrail (2) being relatively fixed to the revolving frame (3), characterized in that: It comprises a water trough (4) and an inserting plate (5), wherein the water trough (4) is arranged on the side wall of the sealing cover (1), the inserting plate (5) is relatively fixed to the trolley guardrail (2), and at least a part of the inserting plate (5) is inserted into the water trough (4).

2. The upper sealing assembly according to claim 1, characterized in that: The plug plate (5) is a multi-section bending structure to form a zigzag airflow path.

3. The upper sealing assembly according to claim 2, characterized in that: The plug plate (5) comprises a first section (51), a second section (52), a third section (53) and a fourth section (54); the first section (51) is connected to the trolley guardrail (2); the first section (51) extends in the radial direction of the ring cooler in a direction away from the trolley guardrail (2); the second section (52) is connected to the first section (51); the second section (52) extends in the axial direction of the ring cooler in a direction close to the sealing cover (1); the third section (53) is connected to the second section (52); the third section (53) extends in the radial direction of the ring cooler in a direction close to the sealing cover (1); the fourth section (54) is connected to the third section (53); the fourth section (54) extends in the axial direction of the ring cooler in a direction close to the trolley guardrail (2); the fourth section (54) is used to be inserted into the water tank (4).

4. The upper sealing assembly according to claim 2, characterized in that: A first baffle (6) and a second baffle (7) are sequentially arranged in the airflow path along the flow direction, and the extension direction of the first baffle (6) is opposite to the extension direction of the second baffle (7) to form a labyrinth seal.

5. The upper sealing assembly according to claim 4, characterized in that: The labyrinth seal further comprises a third baffle (8), wherein the third baffle (8) is arranged at the inlet of the airflow path, and the third baffle (8) and the second baffle (7) extend in the same direction.

6. The upper sealing assembly according to claim 4, characterized in that: The labyrinth seal further comprises a fourth baffle (9), wherein the fourth baffle (9) is arranged on the downstream side of the second baffle (7) along the flow direction, and the fourth baffle (9) is perpendicular to the flow direction.

7. The upper sealing assembly according to claim 3, characterized in that: The first section (51) is provided with a dust removal groove (10), and the bottom of the dust removal groove (10) is provided with a dust discharge hand hole (11).

8. The upper sealing assembly according to claim 7, characterized in that: The cross-sectional area of ​​the dust reduction trough (10) gradually decreases in the downward direction.

9. The upper sealing assembly according to claim 7, characterized in that: The plug plate (5) further comprises a fifth section (55), one end of the fifth section (55) being connected to the first section (51), and the other end being connected to the second section (52), the fifth section (55) being arranged at an angle, and the fifth section (55) being used to guide dust particles in the airflow to fall into the dust removal groove (10).

10. A ring cooler, characterized in that: It comprises an upper sealing assembly as described in any one of claims 1 to 9.

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