A large-piece cleaning device for the discharge chute of a circular cooler

Abstract

The present invention provides a large-block cleaning device for a discharge chute of an annular cooler, comprising a discharge chute, a screening mechanism, a first crushing mechanism, and a second crushing mechanism. The screening mechanism is fixed obliquely within the chute body. The screening mechanism is used to screen the particle size of pellets dumped from the annular cooler trolley. The first crushing mechanism crushes the pellets on the screening mechanism from top to bottom through a through hole. The second crushing mechanism is arranged on the outside of the chute body. The second crushing mechanism comprises a door box, a door cover, and an auxiliary crushing mechanism. The second open end of the door box is cantilevered outward from the first open end, and the door cover is openably connected to the second open end. The auxiliary crushing mechanism is arranged in the door box to assist in crushing the pellets that roll down from the high end of the screening mechanism. The present application well combines screening, aggregation, crushing, and removal, changes the traditional large-block cleaning method, solves the problem of traditional manual large-block cleaning, and improves crushing efficiency and safety.

Description

Technical Field

[0001] The invention relates to the technical field of annular coolers, in particular to a device for cleaning large blocks from an annular cooler discharge chute. Background Art

[0002] In the steelmaking pellet production process, the high-temperature pellets 60 that have been roasted into blocks are continuously and evenly distributed to the rotating trolley of the ring cooler through the feed chute 70 via the rotary kiln. The ring cooler is driven to make uniform circular motion on a horizontal track. At the same time, the blower sends cold air through the air duct into the bellows system under the trolley. Under the action of positive pressure, the cold air passes through the upper grate of the trolley and enters the material layer of the hot pellets 60, fully exchanging heat with the high-temperature pellets 60. During the heat exchange process, the cooling air is heated and turned into high-temperature flue gas, which is discharged through the ring cooling hood on the upper part of the ring cooler trolley, thus completing the cooling process of the pellets 60. Figure 1 shown.

[0003] The discharge chute 10 is located in the unloading area of the annular cooler. The annular cooler rotates once, unloading the cooled pellets 60 into the discharge chute 10. After being buffered by the discharge chute 10, the pellets 60 are discharged through the discharge port at the bottom of the discharge chute 10 onto the apron feeder 80 and the finished product conveyor belt below. However, during the cooling process, many pellets 60 become compacted due to secondary combustion, forming large lumps inside the annular cooler (pellets 60 with a diameter greater than 200 mm are considered abnormally large in the field). After being unloaded into the discharge chute 10, this causes blockage in the discharge chute 10, seriously affecting the normal operation of the equipment. This problem has become a pressing issue in the annular cooler discharge process.

[0004] To prevent large pellets from clogging, the current solution is to open an inspection door, or side door 111, on the side of the discharge chute 10. Once a blockage occurs, this door is manually opened, and the large pellets are broken with a steel chisel before being discharged to the next process equipment. This solution has the disadvantages of high maintenance costs and low efficiency in crushing large pellets. Furthermore, due to the high temperature and high dust at the discharge point, the working environment is very harsh. Furthermore, this solution requires online cleaning. While the large pellets are being manually cleaned and crushed, the annular cooler continues to operate normally, and the pellets 60 are continuously discharged from the discharge area into the discharge chute 10. During the unloading process, the pellets 60 can easily break apart and ricochet into the inspection port, causing personal injury. Whether manually opening the inspection door or using the steel chisel to break the pellets, the pellets that break apart during the unloading process can easily injure people. This manual online operation violates safety regulations.

[0005] In view of this, it is necessary to propose a large block cleaning device for the discharge chute of an annular cooler to solve or at least alleviate the above-mentioned defects. Summary of the Invention

[0006] The main purpose of the present invention is to provide a ring cooler discharge chute with a grid device to solve the problems of low crushing efficiency, low safety factor and easy injury to personnel in the existing technology of manually crushing large blocks with a steel chisel.

[0007] To achieve the above-mentioned purpose, the present invention provides a discharge chute of an annular cooler with a grid device, comprising a discharge chute, a screening mechanism, a first crushing mechanism and a second crushing mechanism; wherein,

[0008] The discharge chute includes a chute body and a cover plate provided on the top of the chute body; the cover plate is provided with a through hole for the first crushing mechanism to pass through; the chute body is provided with a through hole matching the second crushing mechanism on a side wall near the lower end of the screening mechanism, and the through hole is arranged corresponding to the lower end;

[0009] The screening mechanism is fixed obliquely in the chute body, and is used to screen the particle size of the pellets dumped from the ring cooler trolley;

[0010] The first crushing mechanism crushes the pellets on the screening mechanism from top to bottom through the through hole; the second crushing mechanism is arranged on the outside of the chute body, and the second crushing mechanism includes a door box, a door cover and an auxiliary crushing mechanism; wherein,

[0011] The door box includes a first open end and a second open end opposite to each other along its extension direction, the first open end being fixedly connected to the outer side wall of the chute body and communicating with the through hole, and the second open end being cantilevered outward from the first open end; the door cover is openably connected to the second open end;

[0012] The auxiliary crushing mechanism is arranged in the door box, and the auxiliary crushing mechanism includes a connecting end and a crushing end. The connecting end is fixedly connected to the door cover, and the crushing end extends from the connecting end toward the through hole to assist in crushing the pellets rolling down from the high end of the screening mechanism.

[0013] Preferably, the auxiliary crushing mechanism includes a buffer spring, a nail plate, and a plurality of crushing nails fixed to the nail plate, and one end of the buffer spring is fixedly connected to the door cover;

[0014] The nail plate is connected to the other end of the buffer spring, and the crushing nails are protruding from the nail plate. The crushing nails are adapted to the through holes to assist in crushing the pellets rolling down from the high end of the screening mechanism.

[0015] Preferably, a radar level meter is also included, which is signal-linked with the first crushing mechanism. The cover plate is also provided with a detection hole matching the radar level meter. The monitoring end of the radar level meter monitors the distance between it and the pellets located on the low end of the screening mechanism through the detection hole.

[0016] Preferably, the door cover includes a first hinge seat and a door panel, the first hinge seat is fixedly connected to the outer wall of the chute body, and the top of the door panel is hinged to the first hinge seat.

[0017] Preferably, the second crushing mechanism also includes a door cover driving mechanism, and the door cover driving mechanism includes a driving cylinder and a second hinged seat, wherein the door panel area is larger than the cross-sectional area of the second opening end, and the second hinged seat is fixed to the door cover on the side close to the chute body, and the driving cylinder is arranged on one side of the door box, and the driving cylinder includes a driving end and a fixed end, and the fixed end is fixedly connected to the outer side wall of the chute body, and the driving end is connected to the second hinged seat, and the driving cylinder drives the door cover to be opened and closed around the hinge fulcrum of the first hinged seat on the second opening end.

[0018] Preferably, the driving cylinder includes a cylinder body and a third articulated seat, the third articulated seat is fixedly connected to the outer wall of the chute body, and the cylinder body is hinged to the third articulated seat so that the driving direction of the cylinder body is adjustable.

[0019] Preferably, the door box is obliquely arranged on the outside of the chute body, and the second opening end is arranged lower than the first opening end.

[0020] Preferably, a wrapping space for wrapping the pellets is formed between the plurality of crushing nails.

[0021] Preferably, the crushing end of the crushing nail is pointed or blade-shaped.

[0022] Preferably, the screening mechanism includes a plurality of screening elements arranged at even intervals and a supporting mechanism for supporting the screening elements, the supporting mechanism being fixed obliquely to the inner wall of the discharge chute so that the pellets dumped from the ring cooler trolley roll toward the auxiliary crushing mechanism; the top surface of the screening element is formed with an arc-shaped concave surface.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The present invention provides a device for cleaning large ore chunks from a discharge chute of an annular cooler, comprising a discharge chute, a screening mechanism, a first crushing mechanism, and a second crushing mechanism. The screening mechanism is tilted and fixed within the chute body. The screening mechanism is used to screen the particle size of pellets dumped from the annular cooler trolley. The first crushing mechanism crushes the pellets on the screening mechanism from top to bottom through a through hole. The second crushing mechanism is located outside the chute body. The second crushing mechanism includes a door box, a door cover, and an auxiliary crushing mechanism. The second open end of the door box is cantilevered outward from the first open end, and the door cover is openably connected to the second open end. The auxiliary crushing mechanism is located within the door box to assist in crushing the pellets that roll down from the high end of the screening mechanism. This application effectively combines screening, aggregation, and crushing. By utilizing the first and second crushing mechanisms and the door cover drive mechanism, it changes the traditional method of cleaning large ore chunks, solves the problems of traditional manual large ore cleaning, and improves crushing efficiency and safety. In addition, this application can achieve online cleaning without affecting the normal operation of the annular cooler or causing harm to cleaning personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0026] Figure 1 It is a schematic diagram of an annular cooler in the prior art;

[0027] Figure 2 A side view of a ring cooler in the prior art;

[0028] Figure 3 This is an application scenario diagram of the overall structure in one embodiment of the present invention;

[0029] Figure 4 A partial structural diagram of a second crushing mechanism in one embodiment of the present invention;

[0030] Figure 5 A partial structural cross-sectional view of a second crushing mechanism in one embodiment of the present invention;

[0031] Figure 6 Schematic diagram of the structure of a screening mechanism in one embodiment of the present invention;

[0032] Figure 7 A side view of a screening mechanism in one embodiment of the present invention;

[0033] Figure 8Schematic diagrams of three structures of a screening element in one embodiment of the present invention;

[0034] Figure 9 Schematic diagram of the structure of a door cover in one embodiment of the present invention.

[0035] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments.

[0036] Description of Figure Numbers:

[0037] 10. Discharge chute; 110. Chute body; 111. Discharge chute side door; 112. Through hole; 120. Cover plate; 20. Screening mechanism; 210. Screening element; 220. Arc-shaped concave surface; 230. Support mechanism; 240. Anti-wear cover plate; 30. First crushing mechanism; 40. Second crushing mechanism; 410. Door box; 411. First opening end; 412. Second opening end; 420. Door cover; 421. First hinged seat ; 422. Door panel; 423. Seal; 430. Auxiliary crushing mechanism; 431. Buffer spring; 432. Nail plate; 433. Crushing nail; 434. Wrapping space; 440. Door cover drive mechanism; 441. Drive cylinder; 442. Cylinder body; 443. Third articulated seat; 444. Second articulated seat; 50. Radar level meter; 60. Pellet ore; 70. Feed chute; 80. Plate feeder; 90. Large block trough. DETAILED DESCRIPTION

[0038] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0040] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0041] In addition, the descriptions of "first", "second", etc. in the present invention are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0042] Please see the attached Figure 1-9 In one embodiment of the present invention, a device for cleaning large pieces of material from a discharge chute of an annular cooler comprises a discharge chute 10, a screening mechanism 20, a first crushing mechanism 30 and a second crushing mechanism 40; wherein,

[0043] The discharge chute 10 includes a chute body 110 and a cover plate 120 covering the top of the chute body 110. The cover plate 120 is provided with a through hole (not shown) for the first crushing mechanism 30 to pass through. The chute body 110 has a through hole 112 on its side wall near the lower end of the screening mechanism 20, which matches the second crushing mechanism 40. The through hole 112 is arranged corresponding to the lower end so that the pellets 60 passing through the lower end can pass through the through hole 112 and contact the second crushing mechanism 40.

[0044] The screening mechanism 20 is fixed obliquely in the chute body 110, and the screening mechanism 20 is used to screen the particle size of the pellets 60 dumped from the ring cooler trolley; it can be understood that since the screening mechanism 20 is obliquely arranged inside the chute body 110, the screening mechanism 20 has a relatively high end (not marked in the figure) and a low end (not marked in the figure). The pellets 60 with smaller particle sizes, such as pellets 60 with a size less than 200 mm, are screened and fall to the discharge port at the bottom of the discharge chute 10, and then discharged to the plate feeder 80 and the finished product belt below, that is, during the normal discharging process, the pellets 60 with a size greater than 200 mm (which are considered to be large pellets 60 and abnormal blocks in this field) remain on the screening mechanism 20 and roll from the high end to the low end of the screening mechanism 20.

[0045] The first crushing mechanism 30 crushes the pellets 60 on the screening mechanism 20 from top to bottom through the through hole; wherein, the first crushing mechanism 30 can adopt an impact drill or a device that can impact the pellets 60 from top to bottom. Specifically, the top of the impact drill can be fixed on the ring cooler frame to maintain a fixed state, and the impact end of the impact drill passes through the through hole. By controlling the impact drill, the pellets 60 on the screening mechanism 20 can be crushed. Furthermore, the impact direction of the first crushing mechanism 30 can be adjusted. The second crushing mechanism 40 is arranged on the outside of the chute body 110. The second crushing mechanism 40 includes a door box 410, a door cover 420 and an auxiliary crushing mechanism 430; wherein,

[0046] The door box 410 includes a first opening end 411 and a second opening end 412 arranged opposite to each other along its own extension direction, the first opening end 411 is fixedly connected to the outer wall of the chute body 110 and is connected to the through hole 112, and the second opening end 412 is cantilevered outward from the first opening end 411; the door cover 420 is connected to the second opening end 412 in an openable and closable manner; wherein the door box 410 extends outward from the chute body 110 to a certain length, and can form a protective buffer cavity.

[0047] The auxiliary crushing mechanism 430 is arranged in the door box 410. The auxiliary crushing mechanism 430 includes a connecting end (not shown in the figure) and a crushing end (not shown in the figure). The connecting end is fixedly connected to the door cover 420, and the crushing end extends from the connecting end toward the through hole 112 to assist in crushing the pellets rolling down from the high end of the screening mechanism 20.

[0048] The present application combines screening, aggregation and crushing very well, changes the traditional method of cleaning large blocks, and solves the problem of traditional manual cleaning of large blocks. Through the joint action of the auxiliary crushing mechanism 430 and the first crushing mechanism 30, large blocks of pellets can be fully crushed, thereby improving the crushing effect and efficiency. With the help of the first crushing mechanism 30 and the second crushing mechanism 40 and the door cover drive mechanism 440, the traditional method of cleaning large blocks is changed, the problem of traditional manual cleaning of large blocks is solved, and the crushing efficiency and safety are improved. In addition, the present application can realize online cleaning without affecting the normal operation of the ring cooler or causing harm to the cleaning personnel. As a preferred embodiment of the present invention, the auxiliary crushing mechanism 430 includes a buffer spring 431, a nail plate 432 and a plurality of crushing nails 433 fixed on the nail plate 432, and one end of the buffer spring 431 is fixedly connected to the door cover 420;

[0049] The nail plate 432 is connected to the other end of the buffer spring 431, and the crushing nail 433 is protruded on the nail plate 432. The crushing nail 433 is adapted to the through hole 112, that is, the crushing nail 433 can pass through the through hole, and multiple crushing nails 433 can match the through hole. Figure 3 , in order to assist in crushing the pellets that roll down from the high end of the screening mechanism 20. It is worth noting for those skilled in the art that in the embodiment of the present invention, the auxiliary crushing mechanism 430 is used to assist the first crushing mechanism 30 in crushing. Specifically, when the large ore pellets 60 roll down from top to bottom on the screening mechanism 20, the large ore pellets 60 are crushed by the impact force of the large ore pellets 60, and then the first crushing mechanism 30 is used to crush them, thereby improving the crushing efficiency and effect. In addition, it is worth noting that in order to prevent the large pellets 60 from impacting and damaging the door cover 420, a buffer spring 431 is installed behind the nail plate 432, wherein the number and arrangement of the buffer springs 431 can be set by those skilled in the art according to actual needs. In a preferred embodiment, the number of buffer springs 431 is four, and the four buffer springs 431 are evenly spaced and arranged along the height direction.

[0050] As another preferred embodiment of the present invention, a radar level meter 50 is further included. The radar level meter 50 is signal-linked with the first crushing mechanism 30. The cover plate 120 is also provided with a detection hole (not shown) matching the radar level meter 50. The monitoring end of the radar level meter 50 monitors the distance between the radar level meter 50 and the pellets 60 located on the lower end of the screening mechanism 20 through the detection hole. It is worth noting that when the radar level meter 50 (or other forms of ranging sensors) detects the presence of large pellets 60, specifically, a monitoring distance threshold of the radar level meter 50 can be set. When large pellets 60 are present, the distance between the monitoring end of the radar level meter 50 and the screening mechanism 20 becomes smaller, thereby being able to detect whether large pellets 60 are on the screening mechanism 20. By interlocking with the first crushing mechanism 30, the first crushing mechanism 30 can be controlled to impact and crush the large pellets 60, thereby achieving automated monitoring and crushing.

[0051] Furthermore, the door box 410 includes a first hinge seat 421 and a door panel 422. The door cover 420 includes a first hinge seat 421 and a door panel 422. The first hinge seat 421 is fixedly connected to the outer wall of the chute body 110, and the top of the door panel 422 is hinged to the first hinge seat 421.

[0052] As a preferred embodiment, the second crushing mechanism 40 further includes a door cover driving mechanism 440. It can be understood that the door cover driving mechanism 440 is used to drive the door panel 422 to be opened and closed and arranged on the second opening end 412. The door cover driving mechanism 440 includes a driving cylinder 441 and a second hinge seat 444, wherein the area of the door panel 422 is larger than the cross-sectional area of the second opening end 412. It should be noted that in order to facilitate the installation of the second hinge seat 444, the area of the door panel 422 of this embodiment is larger than the area of the second opening end 412, and the second hinge seat 444 can be installed on the door panel. 422, staggered with the second opening end 412, the second hinge seat 444 is fixed to the side of the door cover 420 close to the chute body 110, the driving cylinder 441 is provided on one side of the door box 410, the driving cylinder 441 includes a driving end (not shown) and a fixed end (not shown), the fixed end is fixedly connected to the outer side wall of the chute body 110, the driving end is connected to the second hinge seat 444, the driving cylinder 441 drives the door cover 420 to be opened and closed around the hinge fulcrum of the first hinge seat 421 and is provided on the second opening end 412. Through the driving action of the driving cylinder 441, the opening or closing of the door cover 420 can be controlled by controlling the extension and contraction of the driving end of the driving cylinder 441, thereby improving efficiency and reducing manpower input.

[0053] As another preferred embodiment, the driving cylinder 441 includes a cylinder body 442 and a third hinge seat 443. The third hinge seat 443 is fixedly connected to the outer wall of the chute body 110. The cylinder body 442 is hingedly connected to the third hinge seat 443 to enable the driving direction of the cylinder body 442 to be adjustable. In this embodiment, by configuring the driving cylinder 441 in the form of the cylinder body 442 and the third hinge seat 443, and hingedly connecting the cylinder body 442 and the third hinge seat 443, the position of the cylinder body 442 can be adjusted about the hinge point, thereby adjusting the driving direction of the cylinder body 442.

[0054] As a preferred embodiment, the gate box 410 is tilted and disposed outside the chute body 110, with the second open end 412 disposed lower than the first open end 411. It should be noted that, in order to facilitate the discharge of large lumps that cannot be crushed, the present application provides the gate box 410 in an inclined manner, extending obliquely downward from the first open end 411 to the second open end 412. Furthermore, a large lump trough 90 may be provided outside the second open end 412 to facilitate the centralized collection of large lumps of pellets 60 that cannot be crushed.

[0055] As another preferred embodiment, a wrapping space 434 for wrapping the pellets 60 is formed between the plurality of crushing pins 433. It is worth noting that, in order to minimize the movement of large pellets 60 in the screening element 210 so as to facilitate crushing by the crushing device, specifically, by setting the lengths of the plurality of crushing pins 433 to be inconsistent, a wrapping space 434 capable of wrapping the pellets 60 is formed. It should also be noted that, under the combined action of the crushing pins 433 and the screening mechanism 20, the large pellets 60 can be confined within a certain space, thereby facilitating more stable crushing.

[0056] Furthermore, the crushing ends of the crushing pins 433 are pointed or blade-shaped. By configuring the crushing ends of the crushing pins 433 to be pointed or blade-shaped, when the pellets 60 roll down from the high end of the screening mechanism 20, the crushing pins 433 can utilize the impact force of the pellets 60 to crush the pellets 60, thereby assisting in the crushing of large pieces.

[0057] As a preferred embodiment, the screening mechanism 20 includes a plurality of screening elements 210 arranged at even intervals and a support mechanism 230 for supporting the screening elements 210. The support mechanism 230 is fixed obliquely to the inner wall of the discharge chute 10 so that the pellets 60 dumped from the ring cooler trolley roll toward the auxiliary crushing mechanism 430; the top surface of the screening element 210 is formed with an arc-shaped concave surface 220. Among them, the spacing between the screening elements 210 determines the size of the pellets 50 screened, so the spacing between the screening elements 210 can be set to 200mm, or those skilled in the art can also set it to other sizes according to the setting. The screening element 210 can be selected from one of rail steel, I-beam, and H-beam, which has the advantages of being easy to obtain in production, light weight, easy to install, and having excellent structural strength. By setting up the support mechanism 230, which is fixedly connected to the inner wall of the discharge chute 10, the overall strength of the screening mechanism 20 can be greatly enhanced to meet the long-term impact of the pellets 60 from top to bottom. It can be understood that after the ring cooler trolley enters the unloading area, the unloaded material falls on the screening element 210 for screening. The pellets 60 with larger particle sizes roll from the high end to the low end along the surface of the screening element 210. When the top surface of the screening element 210 forms an arc-shaped concave surface 220, for example, please refer to the attached Figure 7 The pellets 60 will be retained at the lowest position of the arc-shaped concave surface 220, thereby facilitating the crushing of the pellets 60 retained at this position and improving the stability of the crushing.

[0058] For further information, please see the attached Figure 8 The anti-wear cover plate 240 is one or more of a welded U-shaped cover plate, a bent U-shaped cover plate and a vertical plate accumulation anti-wear cover plate 240. It is worth noting that Figure 8From left to right in the middle are a welded U-shaped cover, a bent U-shaped cover and a vertical plate accumulation and anti-wear cover 240, among which the welded U-shaped cover is made of three rectangular steel plates welded into a U-shaped cover structure, which is covered on the support mechanism 230; the bent U-shaped cover is a prefabricated one-piece U-shaped cover, which is covered on the support mechanism 230; the vertical plate accumulation and anti-wear cover 240 is made of two vertical rectangular steel plates arranged on both sides of the support mechanism 230, and its top is higher than the top of the support mechanism 230, so that the protruding parts of the two vertical rectangular steel plates and the top of the support mechanism 230 are combined to form a receiving groove with an open top, so that part of the pellets 60 fall into the receiving groove during the initial unloading, and when the pellets 60 fill the receiving groove, a layer of accumulation material is formed to protect the support mechanism 230 from subsequent erosion and wear. The above three cover structures can be selected by technicians in this field according to specific needs.

[0059] Furthermore, in order to prevent high-temperature smoke from escaping from the door box 410, in this embodiment, the door panel 422 is provided with a seal 423 surrounding the second opening end 412 on the side close to the second opening end 412, such as a rubber seal, which can achieve a good sealing effect through the elastic deformation of the rubber seal.

[0060] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A device for cleaning large pieces of material from the discharge chute of an annular cooler, characterized in that: It includes a discharge chute, a screening mechanism, a first crushing mechanism and a second crushing mechanism; wherein: The discharge chute includes a chute body and a cover plate provided on the top of the chute body; the cover plate is provided with a through hole for the first crushing mechanism to pass through; the chute body is provided with a through hole matching the second crushing mechanism on a side wall near the lower end of the screening mechanism, and the through hole is arranged corresponding to the lower end; The screening mechanism is fixed obliquely in the chute body, and is used to screen the particle size of the pellets dumped from the ring cooler trolley; The first crushing mechanism crushes the pellets on the screening mechanism from top to bottom through the through hole; the second crushing mechanism is arranged on the outside of the chute body, and the second crushing mechanism includes a door box, a door cover and an auxiliary crushing mechanism; wherein: The door box includes a first open end and a second open end opposite to each other along its extension direction, the first open end being fixedly connected to the outer side wall of the chute body and communicating with the through hole, and the second open end being cantilevered outward from the first open end; the door cover is openably connected to the second open end; The auxiliary crushing mechanism is arranged in the door box, and includes a connecting end and a crushing end. The connecting end is fixedly connected to the door cover, and the crushing end extends from the connecting end toward the through hole to assist in crushing the pellets rolling down from the high end of the screening mechanism. The auxiliary crushing mechanism includes a buffer spring, a nail plate, and a plurality of crushing nails fixed to the nail plate, and one end of the buffer spring is fixedly connected to the door cover; The nail plate is connected to the other end of the buffer spring, and the crushing nails are protruding from the nail plate. The crushing nails are adapted to the through holes to assist in crushing the pellets rolling down from the high end of the screening mechanism. The door cover includes a first hinge seat and a door plate, the first hinge seat is fixedly connected to the outer wall of the chute body, and the top of the door plate is hinged to the first hinge seat; The second crushing mechanism also includes a door cover driving mechanism, which includes a driving cylinder and a second hinged seat, wherein the door panel area is larger than the cross-sectional area of the second opening end, and the second hinged seat is fixed to the door cover on the side close to the chute body, and the driving cylinder is arranged on one side of the door box, and the driving cylinder includes a driving end and a fixed end, and the fixed end is fixedly connected to the outer side wall of the chute body, and the driving end is connected to the second hinged seat, and the driving cylinder drives the door cover to be opened and closed around the hinge fulcrum of the first hinged seat on the second opening end.

2. The device for cleaning large pieces of material from the discharge chute of an annular cooler according to claim 1, characterized in that: It also includes a radar level meter, which is signal-linked with the first crushing mechanism. The cover plate is also provided with a detection hole matching the radar level meter. The monitoring end of the radar level meter monitors the distance between it and the pellets located on the low end of the screening mechanism through the detection hole.

3. The device for cleaning large pieces of material from the discharge chute of an annular cooler according to claim 1, characterized in that: The driving cylinder includes a cylinder body and a third articulated seat. The third articulated seat is fixedly connected to the outer wall of the chute body. The cylinder body is articulated to the third articulated seat so that the driving direction of the cylinder body is adjustable.

4. The device for cleaning large pieces of material from the discharge chute of an annular cooler according to claim 1, characterized in that: The door box is obliquely arranged on the outer side of the chute body, and the second opening end is arranged lower than the first opening end.

5. The device for cleaning large pieces of material from the discharge chute of an annular cooler according to claim 1, characterized in that: A wrapping space for wrapping the pellets is formed between the plurality of crushing nails.

6. The device for cleaning large pieces of material from the discharge chute of an annular cooler according to claim 1, characterized in that: The crushing end of the crushing nail is in a tip shape or a blade shape.

7. The device for cleaning large pieces of material from the discharge chute of an annular cooler according to claim 1, characterized in that: The screening mechanism includes a plurality of screening elements arranged at even intervals and a supporting mechanism for supporting the screening elements. The supporting mechanism is fixed obliquely to the inner wall of the discharge chute so that the pellets dumped from the ring cooler trolley roll toward the auxiliary crushing mechanism; the top surface of the screening element is formed with an arc-shaped concave surface.

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