A ring cooler and a water tank desilting device thereof

Abstract

The present invention provides a water tank desilting device for a ring cooler, comprising a bracket connected to the ring cooler, and a desilting module fixed on the bracket; wherein the desilting module comprises: a hollow conveying cylinder, a rotating shaft is arranged in the conveying cylinder, the first end of the rotating shaft is connected to a motor to rotate under the drive of the motor, a discharge port is provided on the side wall of the conveying cylinder close to the first end, and the opening direction of the discharge port faces downward; a plurality of digging hoppers fixed on the rotating shaft and rotating with the rotating shaft, the digging hoppers extend into the water tank of the ring cooler, and the opening of the digging hoppers faces the rotation direction of the rotating shaft; the side wall of the conveying cylinder is also provided with a plurality of feed ports, the feed ports are arranged corresponding to the digging hoppers, and the digging hoppers pass through the feed ports and are connected to the rotating shaft. The present invention aims to solve the technical problem of cleaning the dust accumulation in the water tank during the operation of the ring cooler.

Description

Technical Field

[0001] The invention relates to the technical field of metallurgy, and in particular to a ring cooler and a water tank desilting device thereof. Background Art

[0002] In metallurgical industrial production, the ring cooler is an important process equipment in the upstream process of smelting. Its main function is to cool the high-temperature sintered ore after being roasted by the sintering machine.

[0003] Please refer to Figure 1-2 , is a schematic diagram of the structure of a ring cooler 100 in the prior art. The ring cooler 100 is in a circular shape as a whole, and the sintered material runs through the ring cooler 100 through a trolley 1 to complete cooling and unloading. Specifically, Figure 2 It is a radial (towards the center of the ring cooler) cross-sectional view of the ring cooler 100. The sintered material (e.g., sintered ore) is arranged on the grate plate 2 of the trolley 1, and the trolley 1 rotates circumferentially around the center of the ring cooler 100. At the same time, the cooling air blown in by the air cooler 3 enters from the air inlet (not shown) to the bottom of the grate plate 2, and the cooling air passes through the grate plate 2 from bottom to top and enters the trolley 1. After heat exchange with the sintered ore on the grate plate 2, the cooling air is discharged from the exhaust pipe as hot flue gas, thereby completing the cooling process of the sintered ore.

[0004] Please combine Figure 3 The sealing device between the trolley guardrail and the cooling cover of the ring cooler is called the upper seal. Figure 3 As shown in the figure, a water tank is made on the guardrail column and the plug on the ring cooling cover is inserted into the water tank to form a water seal. At present, most of the upper seals of the ring coolers adopt this water tank seal form, but because the upper water tank seal will keep making circular motions with the trolley guardrail, it is difficult to manually clean the dust in the water tank, and the temperature around the ring cooler is high and the environment is poor. The current cleaning method is to manually dig out the dust through the dredging port after the ring cooler is shut down. If the dust in the water tank is not cleaned for a long time, it will cause the dust to harden in the water tank, affecting the normal operation of the equipment.

[0005] In view of this, it is necessary to propose a ring cooler and a water tank desilting device thereof to solve the above problems. Summary of the invention

[0006] The main purpose of the present invention is to provide a ring cooler and a water tank desilting device thereof, and the present invention aims to solve the technical problem of cleaning the dust accumulated in the water tank during the operation of the ring cooler.

[0007] In order to achieve the above object, the present invention provides a water tank desilting device for an annular cooler, comprising a bracket connected to the annular cooler, and a desilting module fixed to the bracket; wherein the desilting module comprises:

[0008] A hollow conveying cylinder, wherein a rotating shaft is arranged in the conveying cylinder, a first end of the rotating shaft is connected to a motor so as to rotate under the drive of the motor, and a discharge port is opened on a side wall of the conveying cylinder close to the first end, and the opening direction of the discharge port faces downward;

[0009] A plurality of scoop hoppers are fixed on the rotating shaft and rotate with the rotating shaft, the scoop hoppers extend into the water tank of the annular cooler, and the openings of the scoop hoppers face the rotation direction of the rotating shaft; the side wall of the conveying cylinder is also provided with a plurality of feed ports, the feed ports are arranged corresponding to the scoop hoppers, and the scoop hoppers pass through the feed ports and are connected to the rotating shaft.

[0010] Preferably, the digging hopper is arranged at the second end of the rotating shaft, and a conveying impeller is arranged on the outer side wall of the rotating shaft, and the conveying direction of the conveying impeller is from the second end to the first end.

[0011] Preferably, the conveying impeller includes a first rotation direction threaded plate arranged between the discharge port and the second end, and a second rotation direction threaded plate arranged between the discharge port and the first end, and the second rotation direction is opposite to the first rotation direction.

[0012] Preferably, it further comprises a controller and a gravity sensor disposed in the water tank, and the gravity sensor and the motor are both electrically connected to the controller.

[0013] Preferably, bearings cooperating with the rotating shaft are provided at both ends of the conveying cylinder.

[0014] Preferably, the digging hopper includes a back plate, a plurality of bucket walls and a plurality of rib plates arranged at the opening of the digging hopper, the back plate passes through the feed port and is connected to the rotating shaft, the rib plates are vertically arranged on the bucket walls parallel to the back plate, and the plurality of rib plates are arranged along the height direction of the digging hopper.

[0015] The present invention also provides a ring cooler, comprising the water tank dredging device, sealing cover, sealing plate, plug plate, water tank and mounting seat as described above, wherein the sealing plate is fixed on the sealing cover, the plug plate is connected to the sealing plate and extends into the water tank, and the water tank is arranged on the mounting seat.

[0016] Preferably, the bracket of the water tank desilting device is arranged on the sealing cover.

[0017] Preferably, the conveying cylinder is obliquely arranged on the bracket, wherein one end of the feed port of the conveying cylinder is lower than one end of the discharge port, and the inclination angle of the conveying cylinder is 1-3 degrees.

[0018] In the scheme of the present application, the dredging device of the water tank includes a bracket and a dredging module fixed on the bracket. The dredging module includes a conveying cylinder, a rotating shaft arranged in the conveying cylinder, and a plurality of digging hoppers arranged on the rotating shaft. The conveying cylinder is provided with a discharge port and a plurality of feed ports. The digging hopper passes through the feed port and is connected to the rotating shaft, and the digging hopper extends into the water tank of the annular cooler. The digging hopper rotates under the drive of the rotating shaft, and the accumulated dust in the water tank of the annular cooler is brought out. The accumulated dust falls into the conveying cylinder due to gravity as the digging hopper is lifted. Due to the fluidity of the liquid, the accumulated dust flows out from the discharge port of the conveying cylinder along with the water flow brought up by the digging hopper, thereby achieving the purpose of dredging. The present invention is simple in structure design and easy to apply, and can effectively solve the technical problem of cleaning the accumulated dust in the water tank during the operation of the annular cooler. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative work.

[0020] Figure 1 It is a schematic diagram of the overall planar structure of a ring cooler in the prior art;

[0021] Figure 2 for Figure 1 A schematic diagram of the radial cross-sectional structure of the trolley of the ring cooler;

[0022] Figure 3 It is a schematic diagram of the water sealing structure of the annular cooler in the prior art;

[0023] Figure 4 A schematic diagram of the structure of a ring cooler according to an embodiment of the present invention;

[0024] Figure 5 A schematic structural diagram of a dredging device according to an embodiment of the present invention;

[0025] Figure 6 is a cross-sectional view of a dredging device according to an embodiment of the present invention;

[0026] Figure 7 It is a left side view of the silt removal device according to an embodiment of the present invention;

[0027] Figure 8 Schematic diagram of the structure of the conveying impeller according to an embodiment of the present invention.

[0028] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings.

[0029] Description of Figure Numbers:

[0030] 100-ring cooler, 1-trolley, 2-grate plate, 3-cooling fan;

[0031] 200-water tank desilting device, 300-sealing cover, 400-sealing plate, 500-insertion plate, 600-water tank, 700-mounting seat;

[0032] 210- bracket, 220- conveying cylinder, 221- motor, 222- rotating shaft, 223- discharge port, 224- feed port, 230- conveying impeller, 231- first rotation direction thread plate, 232- second rotation direction thread plate, 240- digging hopper, 241- back plate, 242- bucket wall, 243- rib plate, 244- opening. DETAILED DESCRIPTION

[0033] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0036] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot 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" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0037] Please refer to the attached Figure 4 and attached Figure 8 The present invention provides a water tank desilting device for a ring cooler, including a bracket 210 connected to the ring cooler 100, and a desilting module (not shown in the figure) fixed on the bracket 210.

[0038] The dredging module (not shown in the figure) includes a hollow conveying cylinder 220 and a digging bucket 240 .

[0039] A rotating shaft 222 is disposed in the conveying cylinder 220, and a first end of the rotating shaft 222 is connected to the motor 221 to rotate under the drive of the motor 221. A discharge port 223 is provided on the side wall of the conveying cylinder 220 near the first end, and an opening 244 of the discharge port 223 faces downward;

[0040] A plurality of hoppers 240 are fixed on the rotating shaft 222 and are arranged to rotate with the rotating shaft 222; the hoppers 240 extend into the water tank 600 of the annular cooler 100, and the openings 244 of the hoppers 240 face the rotation direction of the rotating shaft 222; the conveying cylinder 220 is provided with a plurality of feed ports 224, and the feed ports 224 are arranged corresponding to the hoppers 240, and the hoppers 240 pass through the feed ports 224 and are connected to the rotating shaft 222.

[0041] Among them, the conveying cylinder 220 is an internal hollow structure, and the conveying cylinder 220 is fixed on the bracket 210. In a preferred embodiment, the feed port 224 can be an annular opening, and the annular opening is coaxially arranged with the rotating shaft 222, so that the digging bucket 240 can rotate with the motor 221. It can be understood that the structure of the feed port 224 is not limited to the given annular opening, and can also be other forms. For example, the conveying cylinder 220 is set as an opening at the second end of the rotating shaft 222, and a bracket is arranged at the opening, and the hopper is arranged on the bracket, and the digging bucket can also rotate with the rotating shaft.

[0042] The free end of the digging bucket 240 may be in the shape of a digging bucket so as to facilitate digging out the dust accumulated in the water tank 600. In a preferred embodiment, the opening 244 on the digging bucket 240 is a full opening. When the inner wall thereof is adhered with dust and becomes compacted, the dust accumulation and compaction can be cleaned by manual cleaning. It is understood that the size of the opening 244 is not limited to the full opening form given in this embodiment. When the opening 244 is partially opened, a plurality of dredging windows can be opened on the bucket wall 242 where the opening 244 is opened to clean the dust accumulation and compaction.

[0043] In the solution of the present application, the water tank desilting device 200 includes a bracket 210 and a desilting module (not shown in the figure) fixed on the bracket 210. The desilting module (not shown in the figure) includes a conveying cylinder 220, a rotating shaft 222 disposed in the conveying cylinder 220, and a plurality of digging buckets 240 disposed on the rotating shaft 222. The conveying cylinder 220 is provided with a discharge port 223 and a plurality of feed ports 224. The digging bucket 240 passes through the feed port 224 and is connected to the rotating shaft 222, and the digging bucket 240 extends into the water tank 600 of the annular cooler 100. The digging bucket 240 rotates under the drive of the rotating shaft 222, and the accumulated dust in the water tank 600 of the annular cooler 100 is brought out. The accumulated dust falls into the conveying cylinder 220 due to gravity as the digging bucket 240 is lifted. Due to the fluidity of the liquid, the accumulated dust flows out from the discharge port 223 of the conveying cylinder 220 along with the water flow brought up by the digging bucket 240, thereby achieving the purpose of silting. The present invention is simple in structure and easy to apply, and can effectively solve the technical problem of cleaning the accumulated dust in the water tank 600 during the operation of the annular cooler 100.

[0044] As a specific implementation of this embodiment, the digging bucket 240 is arranged at the second end of the rotating shaft 222, and the outer wall of the rotating shaft 222 is provided with a conveying impeller 230, and the conveying direction of the conveying impeller 230 is from the second end to the first end. The second end of the rotating shaft 222 is the end opposite to the first end and away from the motor 221. The digging bucket 240 is arranged at the second end of the rotating shaft 222 away from the motor 221 to balance the radial torque on the rotating shaft 222 to prevent the rotating shaft 222 from radial movement.

[0045] Preferably, bearings (not shown in the figure) that cooperate with the rotating shaft 222 are provided at both ends of the conveying cylinder 220. The bearing (not shown in the figure) is provided in a bearing seat (not shown in the figure), and a sealing ring (not shown in the figure) is provided between the bearing (not shown in the figure) and the bearing seat (not shown in the figure) to prevent dust accumulation. The bearing (not shown in the figure) and the bearing seat (not shown in the figure) can realize the self-rotation of the rotating shaft 222 in the conveying cylinder 220, while reducing the friction between the rotating shaft 222 and the conveying cylinder 220.

[0046] Furthermore, the conveying impeller 230 includes a first rotational direction threaded plate 231 disposed between the discharge port 223 and the second end, and a second rotational direction threaded plate 232 disposed between the discharge port 223 and the first end. The rotational direction of the first rotational direction threaded plate 231 is the rotational direction in which the material moves toward the discharge port 223 when the rotating shaft 222 rotates, and the rotational direction of the second rotational direction threaded plate 232 is the rotational direction opposite to the rotational direction of the first rotational direction threaded plate 231. While the first rotational direction spiral plate conveys the accumulated dust to the discharge port 223, the second rotational direction spiral plate rotates in the opposite direction to convey the accumulated dust at the first end of the conveying cylinder 220 to the discharge port 223, so as to ensure that no excess accumulated dust will enter the bearing seat to damage the bearing and the motor 221.

[0047] As a preferred embodiment of this example, the water tank desilting device 200 further includes a controller (not shown in the figure) and a gravity sensor (not shown in the figure) disposed in the water tank 600. The gravity sensor (not shown in the figure) and the motor 221 are both electrically connected to the controller (not shown in the figure). A gravity threshold is preset in the controller (not shown in the figure). When the gravity sensor (not shown in the figure) senses that the gravity exceeds the threshold, the controller (not shown in the figure) can start the motor 221 and start the desilting function, thereby achieving the purpose of saving energy.

[0048] As a specific implementation of this embodiment, the digging hopper 240 includes a back plate 241, a plurality of bucket walls 242, and a plurality of ribs 243 arranged at the opening 244 of the digging hopper 240. The back plate 241 passes through the feed port 224 and is connected to the rotating shaft 222. The ribs 243 are arranged vertically on the bucket walls 242 parallel to the back plate 241 and arranged along the height direction of the digging hopper 240. Among them, the back plate 241 is a plate body on the side opposite to the bucket wall 242 with the opening 244. The ribs 243 arranged at the opening 244 are used to reinforce the stability of the opening 244 so that it is not easy to deform.

[0049] The present invention further provides a ring cooler 100, comprising the above-mentioned water tank desilting device 200, a sealing cover 300, a sealing plate 400, a plug plate 500, a water tank 600 and a mounting seat 700, wherein the sealing plate 400 is fixed to the sealing cover 300, the plug plate 500 is connected to the sealing plate 400 and extends into the water tank 600, and the water tank 600 is arranged on the mounting seat 700. Preferably, the bracket 210 of the water tank 600 desilting device 200 is arranged on the sealing cover 300.

[0050] Furthermore, the conveying cylinder 220 is tiltedly arranged on the bracket 210, wherein one end of the feed port 224 of the conveying cylinder 220 is lower than one end of the discharge port 223, and the inclination angle of the conveying cylinder 220 is 1-3 degrees. Specifically, in this embodiment, the inclination angle of the conveying cylinder 220 is 2 degrees, so as to ensure that the accumulated dust can be transported out by the conveying impeller 230, and at the same time, the water can flow back into the water tank 600, so as to avoid excess water being taken out and causing the water level of the water tank 600 to drop.

[0051] 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 specification 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 water tank desilting device for a ring cooler, characterized in that: It includes a bracket connected to the ring cooler, and a dredging module fixed on the bracket; wherein the dredging module includes: A hollow conveying cylinder, wherein a rotating shaft is arranged in the conveying cylinder, a first end of the rotating shaft is connected to a motor so as to rotate under the drive of the motor, and a discharge port is opened on a side wall of the conveying cylinder close to the first end, and the opening direction of the discharge port faces downward; A plurality of digging buckets are fixed on the rotating shaft and rotate with the rotating shaft, the digging buckets extend into the water tank of the annular cooler, and the openings of the digging buckets face the rotation direction of the rotating shaft; the side wall of the conveying cylinder is also provided with a plurality of feed ports, the feed ports are arranged corresponding to the digging buckets, the digging buckets pass through the feed ports and are connected to the rotating shaft, The digging hopper is arranged at the second end of the rotating shaft, and a conveying impeller is arranged on the outer side wall of the rotating shaft, and the conveying direction of the conveying impeller is from the second end to the first end. The conveying impeller comprises a first rotation direction thread plate arranged between the discharge port and the second end, and a second rotation direction thread plate arranged between the discharge port and the first end, wherein the second rotation direction is opposite to the first rotation direction; It also includes a controller and a gravity sensor arranged in the water tank, and the gravity sensor and the motor are both electrically connected to the controller.

2. The water tank desilting device according to claim 1, characterized in that: Both ends of the conveying cylinder are provided with bearings matched with the rotating shaft.

3. The water tank desilting device according to claim 1, characterized in that: The digging hopper includes a back plate, a plurality of bucket walls and a plurality of rib plates arranged at the opening of the digging hopper. The back plate passes through the feed port and is connected to the rotating shaft. The rib plates are vertically arranged on the bucket walls parallel to the back plate, and the plurality of rib plates are arranged along the height direction of the digging hopper.

4. A ring cooler, characterized in that: It comprises a water tank desilting device as described in any one of claims 1 to 3, a sealing cover, a sealing plate, an insert plate, a water tank and a mounting seat, wherein the sealing plate is fixed on the sealing cover, the insert plate is connected to the sealing plate and extends into the water tank, and the water tank is arranged on the mounting seat.

5. The ring cooler according to claim 4, characterized in that: The bracket of the water tank desilting device is arranged on the sealing cover.

6. The ring cooler according to claim 5, characterized in that: The conveying cylinder is obliquely arranged on the bracket, wherein one end of the feed port of the conveying cylinder is lower than one end of the discharge port, and the inclination angle of the conveying cylinder is 1-3 degrees.

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