A ring cooler

Abstract

A ring cooler comprises a frame, a trolley and a bellows arranged on the frame, wherein the trolley is located above the bellows, and an inner water sealing groove and an outer water sealing groove are arranged on the top of the bellows; the trolley comprises a trolley frame, a trolley bottom cross beam connected to the trolley frame, and a trolley bottom plate hinged to the trolley bottom cross beam, and the trolley bottom plate can rotate around the hinge with the trolley bottom cross beam; a trolley supporting wheel is arranged on the top of the bellows, and the trolley supporting wheel directly or indirectly supports the trolley bottom plate to keep the trolley bottom plate horizontal; the inner water sealing groove and the outer water sealing groove are continuously extended rings, and the trolley bottom plate is located between the inner water sealing groove and the outer water sealing groove. The ring cooler of the present invention has a good sealing effect, and can eliminate the problems of air leakage and dust in the unloading section.

Description

Technical Field

[0001] The invention belongs to the technical field of metallurgical equipment, and in particular relates to a ring cooler. Background Art

[0002] The ring cooler is one of the important equipment for sintering production. The temperature of the sintered ore produced by the sintering machine is very high after crushing and needs to be cooled. The ring cooler can cool the sintered ore from 600-800 degrees to below 120 degrees by blast cooling, so that the sintered ore can be processed in the subsequent process. When the ring cooler is used to cool the ore, the ore is carried by a trolley, and the trolley moves along the ring frame above the bellows. Due to the gap between the trolley and the bellows, air leakage will occur. The high air leakage rate leads to high energy consumption, so the gap between the trolley and the bellows needs to be sealed.

[0003] In order to achieve effective sealing, various manufacturers have proposed a variety of sealing forms. Water seal is a sealing structure that has been widely used in annular coolers in recent years. The Chinese invention patent No. 201110265505.7 discloses a water-sealed annular cooler, in which a water tank is installed on the machine body, a sealing plate is installed at the bottom of the trolley and / or under the rotary frame, and the sealing plate is vertically inserted below the liquid level in the water tank. The sealing plate and the water tank cooperate to achieve the effect of sealing the gap between the bottom of the trolley and the top of the bellows. However, the distance between the inner water seal groove and the outer water seal groove of the annular cooler is less than the width of the bottom plate of the trolley (the radial dimension), and in the unloading section of the annular cooler, the bottom plate of the trolley needs to be turned down to achieve unloading. Therefore, the inner water seal groove and the outer water seal groove need to be disconnected at the unloading section, that is, the water seal structure is not fully enclosed, and there is still air leakage. At the same time, a large amount of dust pollution will be generated in the unloading area. Summary of the invention

[0004] The object of the present invention is to provide a ring cooler with simple structure and good sealing effect.

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

[0006] A ring cooler comprises a frame, a trolley arranged on the frame and a bellows, the trolley is located above the bellows, and an inner water-sealing groove and an outer water-sealing groove are arranged on the top of the bellows; the trolley comprises a trolley frame, a trolley bottom cross beam connected to the trolley frame, and a trolley bottom plate hinged to the trolley bottom cross beam, and the trolley bottom plate can rotate around the hinge with the trolley bottom cross beam; a trolley supporting wheel is arranged on the top of the bellows, and the trolley supporting wheel directly or indirectly supports the trolley bottom plate to keep the trolley bottom plate horizontal; the inner water-sealing groove and the outer water-sealing groove are continuously extended rings, and the trolley bottom plate is located between the inner water-sealing groove and the outer water-sealing groove.

[0007] As a specific implementation of the annular cooler of the present invention, the trolley bottom plate is hinged to the trolley bottom cross beam via a lifting lug.

[0008] As a specific implementation of the ring cooler of the present invention, a structural beam is arranged on the top of the bellows, and the trolley supporting wheel is arranged on the structural beam.

[0009] As a specific implementation of the annular cooler of the present invention, the structural beam spans across the top of the wind box along the radial direction of the annular cooler.

[0010] As a specific implementation of the annular cooler of the present invention, the structural beam extends along the circumferential direction of the annular cooler and is arranged on the top of the wind box.

[0011] As a specific implementation of the ring cooler of the present invention, the trolley wheels are arranged continuously along the circumferential direction or are arranged at intervals along the circumferential direction.

[0012] As a specific embodiment of the ring cooler of the present invention, the unloading section of the ring cooler is provided with a downwardly recessed curved rail, and the curved rail supports the free end of the bottom plate of the trolley to make it inclined.

[0013] As a specific implementation of the annular cooler of the present invention, the rotation axis of the trolley bottom plate is parallel to the radial direction of the annular cooler.

[0014] As a specific implementation of the ring cooler of the present invention, a trolley support rail matching with the trolley support wheel is provided at the bottom of the trolley bottom plate.

[0015] The present invention also provides a ring cooler, comprising a frame, a trolley arranged on the frame and a bellows, the trolley is located above the bellows, and an inner water-sealing groove and an outer water-sealing groove are arranged on the top of the bellows; the trolley comprises a trolley frame, a trolley bottom cross beam connected to the trolley frame, and a trolley bottom plate hinged to the trolley bottom cross beam, the trolley bottom plate can rotate around the hinge with the trolley bottom cross beam, and a trolley supporting wheel is arranged at the bottom of the trolley bottom plate; a trolley supporting rail is arranged on the top of the bellows, the trolley supporting rail is a ring shape extending continuously in the circumferential direction, the trolley supporting rail cooperates with the trolley supporting wheel to support the trolley bottom plate to keep the trolley bottom plate horizontal; the inner water-sealing groove and the outer water-sealing groove are continuously extending ring shapes, and the trolley bottom plate is located between the inner water-sealing groove and the outer water-sealing groove.

[0016] More specifically, the trolley supporting wheels are arranged continuously or at intervals on the bottom of the trolley bottom plate.

[0017] More specifically, the rotation axis of the trolley bottom plate is parallel to the radial direction of the annular cooler, and the unloading section of the annular cooler is provided with a downwardly recessed curved rail, which supports the free end of the trolley bottom plate to make it inclined.

[0018] It can be seen from the above technical scheme that the annular cooler of the present invention is provided with a trolley supporting wheel on the top of the bellows, and the trolley supporting wheel is used to support the flip bottom plate of the trolley to keep it horizontal and carry the ore. There is no need to set other locking structures and unlocking structures. The structure is simple and the stability is good. The trolley bottom plate is located between the inner and outer annular water sealing grooves. The flipping of the trolley bottom plate in the unloading section will not interfere with the water sealing groove and can be flipped freely, so that the water sealing groove can be set as a continuous annular water groove, which solves the problems of air leakage and dust caused by the disconnection of the water sealing groove in the unloading section of the existing annular cooler and the inability to fully close it. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the connection between the trolley bottom plate and the trolley bottom cross beam according to an embodiment of the present invention;

[0021] Figure 3 This is a structural schematic diagram of a trolley bottom plate according to an embodiment of the present invention;

[0022] Figure 4 It is a structural schematic diagram of the unloading section of the ring cooler according to an embodiment of the present invention.

[0023] The specific implementation modes of the present invention are further described in detail below with reference to the accompanying drawings. DETAILED DESCRIPTION

[0024] The present invention is described in detail below in conjunction with the accompanying drawings. When describing the embodiments of the present invention in detail, for the convenience of explanation, the drawings showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. It should be noted that the drawings are simplified and all use non-precise scales, which are only used to facilitate and clearly assist in explaining the purpose of the embodiments of the present invention.

[0025] like Figure 1As shown, the annular cooler includes a frame 1, a trolley 2, a bellows 3, a smoke hood 4, an outer water-sealed groove 5, and an inner water-sealed groove 6. The trolley 2 is arranged on the frame 1. The trolley 2 of this embodiment is arranged on the frame 1 through the matching structure of the support wheel and the guide rail. The support wheel 7 is arranged on the frame 1, and the guide rail 8 is mounted on the support wheel 7. The guide rail 8 extends continuously, and the trolley frame is fixedly connected to the guide rail 8, so as to be supported above the bellows 3. In other embodiments, the guide rail can also be arranged on the frame, and the support wheel can be arranged at the bottom of the trolley. A stop wheel 9 is arranged on the frame 1, and the stop wheel 9 contacts the side of the trolley frame to limit the trolley 2 from making a circular motion on the frame 1 to control its deviation. The driving mode of the trolley of the present invention adopts the roller driving mode of the existing annular cooler, which is not the innovation point of the present invention and will not be described here. In addition to the roller driving mode, other driving modes of the annular cooler can also be adopted.

[0026] The bellows 3 is located below the trolley 2, and the smoke hood 4 is arranged above the trolley 2. An outer water-sealing groove 5 and an inner water-sealing groove 6 are respectively arranged on both sides of the top of the bellows 3. The outer water-sealing groove 5 and the inner water-sealing groove 6 are concentrically arranged but have different radii. The outer water-sealing groove 5 and the inner water-sealing groove 6 are located on the inner side of the supporting wheel 7. The outer water-sealing groove 5 and the inner water-sealing groove 6 are continuously extended rings. A sealing plate 2a vertically extending into the water-sealing groove is arranged at the bottom of the trolley 2. When the water-sealing groove is filled with water, the water-sealing groove cooperates with the sealing plate 2a to achieve sealing of the gap between the top of the bellows 3 and the bottom of the trolley 2 to prevent air leakage. The sealing plate can be directly or indirectly connected to the trolley, and the sealing plate moves with the trolley.

[0027] Combination Figure 1 , Figure 2 and Figure 3The trolley 2 of the present invention includes a trolley frame, a side railing 2-1 arranged on the trolley frame, a trolley bottom cross beam 2-2 connected to the trolley frame, a trolley bottom plate 2-3 hinged to the trolley bottom cross beam 2-2, and a bottom plate supporting wheel 2-4 arranged above the bellows. The bottom plate supporting wheel 2-4 of this embodiment is arranged on a structural beam (not shown) at the top of the bellows 3. The trolley bottom plate 2-3 can rotate around its hinge with the trolley bottom cross beam 2-2, and the rotation axis is parallel to the radial direction of the ring cooler. Bamboo strips are arranged on the trolley bottom plate 2-3 for carrying mineral materials. The trolley bottom plate 2-3 of this embodiment is hinged to the trolley bottom cross beam 2-2 through two ear plates, and the trolley bottom plate 2-3 can be flipped downward. A plurality of structural beams are arranged at intervals along the circumferential direction of the annular cooler at the top of the bellows 3. The structural beams of this embodiment cross the top of the bellows 3 along the radial direction of the annular cooler. The trolley wheels 2-4 are arranged on the structural beams through the wheel frames 2-5. The trolley wheels 2-4 are used to support the trolley bottom plate 2-3 to keep it horizontal. The trolley wheels 2-4 can be arranged continuously along the circumferential direction or can be arranged at intervals along the circumferential direction. The trolley bottom plate 2-3 of the present invention is located between the outer water sealing groove 5 and the inner water sealing groove 6. In other embodiments, the structural beams can also be arranged at the top of the bellows 3 along the circumferential direction.

[0028] The bellows are disconnected at the unloading section of the annular cooler (i.e. there is no bellows at the unloading section, only the finished product silo). Figure 4 As shown ( Figure 4 The arrow in the middle indicates the direction of the trolley. In order to clearly show the bottom plate structure of the trolley, Figure 4 (The structure of the trolley guardrail, smoke hood and other components are omitted in the figure). In order to achieve unloading, a downwardly concave curved track 10 is provided in the unloading section of the ring cooler, and the curved track 10 is used to support the trolley bottom plate 2-3. Since the height of the curved track 10 is lower than that of the trolley supporting wheel 2-4 on the bellows structural beam, when the trolley 2 moves to the unloading section, the trolley bottom plate 2-3 loses the support of the trolley supporting wheel 2-4 and naturally turns downward under the action of gravity. The free end of the trolley bottom plate 2-3 is supported by the curved track 10, so that the trolley bottom plate 2-3 is tilted, and the ore on the trolley bottom plate 2-3 falls into the unloading area. After unloading, the trolley bottom plate 2-3 gradually resets and returns to a horizontal state while moving forward along the curved track 10. When the trolley 2 moves above the bellows 3, the trolley bottom plate 2-3 is supported by the trolley supporting wheel 2-4 again and maintains a horizontal state. Since the trolley bottom plate 2-3 of the present invention is located between the outer water sealing groove 5 and the inner water sealing groove 6, it can be freely turned over in the unloading section of the annular cooler. Therefore, the water sealing groove can adopt a continuous ring shape to seal the entire section of the annular cooler to prevent air leakage. At the same time, a dust removal pipeline is connected above the unloading area, which can also prevent dust pollution in the unloading area.

[0029] Of course, the technical concept of the present invention is not limited to the above-mentioned embodiments, and many different specific schemes can be obtained based on the concept of the present invention. For example, in the above-mentioned embodiment, the trolley supporting wheel is arranged on the bellows to directly support the trolley bottom plate, but a trolley supporting rail that cooperates with the trolley supporting wheel can also be arranged on the trolley bottom plate, and the trolley supporting rail is mounted on the trolley supporting wheel; or the trolley supporting wheel is arranged at the bottom of the trolley bottom plate, and a continuously extended trolley supporting rail is arranged on the top of the bellows, and the trolley supporting wheel cooperates with the trolley supporting rail to support the trolley bottom plate; such changes and equivalent transformations should be included in the scope of the present invention.

Claims

1. A ring cooler, comprising a frame, a trolley and a bellows arranged on the frame, wherein the trolley is located above the bellows, and an inner water sealing groove and an outer water sealing groove are arranged on the top of the bellows; Features: The trolley comprises a trolley frame, a trolley bottom beam connected to the trolley frame, and a trolley bottom plate hinged to the trolley bottom beam, wherein the trolley bottom plate can rotate around a hinged joint between the trolley bottom beam and the trolley bottom beam; A trolley support wheel is arranged on the top of the bellows, and the trolley support wheel supports the trolley bottom plate to keep the trolley bottom plate level; The inner water sealing groove and the outer water sealing groove are continuously extended in annular shapes, and the trolley bottom plate is located between the inner water sealing groove and the outer water sealing groove; The unloading section of the ring cooler is provided with a downwardly concave curved rail, and the curved rail supports the free end of the bottom plate of the trolley to make it inclined; The bottom of the trolley bottom plate is provided with a trolley support rail matched with the trolley support wheel.

2. The ring cooler according to claim 1, characterized in that: A structural beam is arranged on the top of the bellows, and the trolley supporting wheel is arranged on the structural beam.

3. The ring cooler according to claim 2, characterized in that: The structural beam spans across the top of the wind box along the radial direction of the annular cooler; or the structural beam extends along the circumferential direction of the annular cooler and is arranged on the top of the wind box.

4. The ring cooler according to any one of claims 1 to 3, characterized in that: The trolley wheels are arranged continuously in the circumferential direction or are arranged at intervals in the circumferential direction.

5. The ring cooler according to claim 1, characterized in that: The rotation axis of the trolley bottom plate is parallel to the radial direction of the ring cooler.

6. A ring cooler, comprising a frame, a trolley and a bellows arranged on the frame, wherein the trolley is located above the bellows, and an inner water sealing groove and an outer water sealing groove are arranged on the top of the bellows; Features: The trolley comprises a trolley frame, a trolley bottom cross beam connected to the trolley frame, and a trolley bottom plate hinged to the trolley bottom cross beam, the trolley bottom plate can rotate around the hinge between it and the trolley bottom cross beam, and a trolley supporting wheel is arranged at the bottom of the trolley bottom plate; A trolley support rail is arranged on the top of the bellows, and the trolley support rail is a ring that extends continuously along the circumferential direction. The trolley support rail cooperates with the trolley support wheel to support the trolley bottom plate so that the trolley bottom plate remains horizontal; The inner water sealing groove and the outer water sealing groove are continuously extended in annular shapes, and the trolley bottom plate is located between the inner water sealing groove and the outer water sealing groove; The trolley supporting wheels are arranged continuously or at intervals at the bottom of the trolley bottom plate; The rotation axis of the trolley bottom plate is parallel to the radial direction of the annular cooler. The unloading section of the annular cooler is provided with a downwardly recessed curved rail, and the curved rail supports the free end of the trolley bottom plate to make it inclined.

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