Efficient cooling conveyor

Abstract

An efficient cooling conveyor comprises a roller, a double-helix multi-layer coil pipe type spiral cooling conveying mechanism is fixedly installed in the roller and comprises two sets of independent spiral pipe bundles, and each set of spiral pipe bundles is provided with 2-6 spiral pipes. The end of the spiral pipe bundle at the discharging end is connected to a radial water inlet collecting pipe, the spiral pipe bundle at the feeding end is connected to a radial water outlet collecting pipe, the water outlet collecting pipe is communicated with an interlayer of the roller, the radial outer ends of the water inlet collecting pipes of the two sets of spiral pipe bundles are closed, and the inner ends of the water inlet collecting pipes are communicated with a jacket of a water sleeve fixedly arranged in the center of the roller. The water sleeve is composed of a pipe and an inner pipe, a jacket is arranged between the outer pipe and the inner pipe, a roller interlayer at the discharging end is communicated with the inner pipe of the water sleeve through a water return pipeline, a double-way rotating connector is installed on the water sleeve, inlet water is communicated with the jacket of the water sleeve through the double-way rotating connector, and outlet water is communicated with the inner pipe through the double-way rotating connector. The conveyor is large in cooling capacity and high in conveying capacity.

Description

Technical Field

[0001] This utility model relates to a cooling and conveying device for materials, and in particular to a high-efficiency cooling conveyor, belonging to the field of mechanical technology. Background Technology

[0002] Cooling conveyors (slag coolers, material coolers) are common equipment in the conveying of materials with high-temperature cooling processes, such as high-temperature slag and high-temperature electrode materials production. Currently, a common type of cooling conveyor in industry is the water-cooled horizontal drum screw conveyor. Its main structure is a double-layered drum body, usually made of carbon steel or stainless steel. The drum is mounted on a base at both ends via support wheels (support rollers) and can rotate around its axis. Internally, spiral blades are welded along the inner wall of the drum, propelling the material from the feed end to the discharge end. The drive unit includes a motor, reducer, coupling, and gear ring / support roller transmission system. The motor drives the drum to rotate via the reducer, with a speed typically between 5-15 rpm, adjustable by frequency converter to adapt to different material requirements. A feed box and a discharge box are sealed and rotatably connected at both ends of the drum. Cooling water flows through the double layer of the drum, entering from the discharge end and flowing along the double layer to form counter-current heat exchange. Several technical solutions for this type of cooling conveyor have been disclosed in Chinese patent applications, such as CN109899821A temperature-controlled slag cooler, CN109899820A silencer slag cooler, and CN109899818A heat-dissipating slag cooler. Existing industrial production has new requirements for slag cooler conveyors, specifically: With technological advancements, the production capacity of existing production lines is generally constantly increasing, sometimes even doubling. However, the design capacity of the cooling conveyor equipment used in the original production line design generally does not have a large margin, resulting in the cooling conveyor process being unable to meet production requirements. Replacing with a higher-capacity screw conveyor must be considered within the existing production line layout space; increasing the equipment length cannot increase production efficiency. This places new demands on the conveying and cooling capabilities of the equipment. Furthermore, existing cooling conveyors tend to adhere to the inner wall of the drum when conveying certain materials (such as electrode materials), leading to heat exchange problems. Summary of the Invention

[0003] The purpose of this invention is to provide a high-efficiency cooling conveyor.

[0004] To achieve the purpose of this utility model, the following technical solution is adopted: A high-efficiency cooling conveyor includes a base, on which two sets of support rollers are installed. A double-layered roller is supported on the support rollers. A gear ring is fixedly connected to the roller, and the gear ring meshes with a gear. The gear is connected to a drive mechanism. The feed end and discharge end of the roller are respectively rotated to a feed box and a discharge box connected by a sealing element. A double-helix multi-layer coiled spiral cooling conveyor mechanism is fixedly installed inside the roller. The double-helix multi-layer coiled spiral cooling conveyor mechanism includes two independent spiral tube bundles, each spiral tube bundle having 2-6 spiral tubes. The two spiral tube bundles are interlocked. Together, they form a double helix structure. The helical tube bundle at the discharge end is connected to a radial water inlet manifold, and the helical tube bundle at the feed end is connected to a radial water outlet manifold. The water outlet manifold connects to the jacket of the drum. The radial outer ends of the water inlet manifolds of the two sets of helical tube bundles are closed, and the inner ends are connected to the jacket of the water jacket fixedly set in the center of the drum. The water jacket consists of an outer tube and an inner tube, with a jacket between the outer tube and the inner tube. The drum jacket at the discharge end is connected to the inner tube of the water jacket through a return water pipe. A double-rotary joint is installed on the water jacket. The water inlet is connected to the jacket of the water jacket through the double-rotary joint, and the water outlet is connected to the inner tube through the double-rotary joint.

[0005] Furthermore, each set of helical tube bundles has 4 helical tubes, which are distributed inside and outside to form a helical tube bundle.

[0006] Furthermore, multiple striking devices are installed on the drum wall, each striking device consisting of multiple steel ball striking mechanisms. These include radial steel ball drop tubes fixedly welded to the inner wall of the drum, with the steel ball drop tubes sealed to the outer wall of the drum. A tangential tube is fixedly connected to the radial outer end of the steel ball drop tube, and steel balls are freely placed inside the steel ball drop tube, allowing the steel balls to move freely within both the steel ball drop tube and the tangential tube.

[0007] Furthermore, there are multiple steel balls.

[0008] The positive and beneficial technical effects of this utility model are as follows: this conveyor has a large cooling capacity and a strong conveying capacity, and its production capacity is greater without changing the length of the machine body. The specific implementation method will be described in detail. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of a double-helix multi-layer coil spiral cooling conveyor mechanism.

[0010] Figure 2 yes Figure 1 An enlarged schematic diagram.

[0011] Figure 3 This is an external schematic diagram of the equipment.

[0012] Figure 4 This is a schematic diagram of the striking mechanism. Detailed Implementation

[0013] To more fully explain the implementation of this utility model, implementation examples are provided. These implementation examples are merely illustrative of this utility model and do not limit its scope.

[0014] The present invention will be further explained in detail with reference to the accompanying drawings, in which the following references are made: 1: Inlet manifold A; 2: Inlet manifold B; 3: First spiral tube bundle; 4: Second spiral tube bundle; 5: Water jacket; 6: Return water pipe; 7: Outermost tube; 8: Second tube; 9: Third tube; 10: Fourth tube; 11: Roller; 12: Base; 13: Support roller; 14: Tire; 15: Gear ring; 16: Gear; 17: Discharge box; 18: Feed box; 19: Inlet pipe; 20: Outlet pipe; 21: Striking mechanism; 211: Steel ball drop pipe; 212: Tangential pipe; 22: Interlayer; 23: Double-path rotary joint.

[0015] As shown in the attached figure, a high-efficiency cooling conveyor includes a base 12, on which two sets of support rollers 13 are installed. A double-layered roller 11 is supported on the support rollers. A gear ring 15 is fixedly connected to the roller, and the gear ring meshes with a gear 16. The gear is connected to a drive mechanism, which is generally a motor-driven reducer. The reducer drives the gear. The feed end and discharge end of the roller are respectively connected to a feed box 18 and a discharge box 17 through a seal. The above are all structures found in existing slag coolers. A double-helix multi-layer coiled spiral cooling conveyor mechanism is fixedly installed inside the drum. This mechanism comprises two independent spiral tube bundles. In the figure, the two independent spiral tube bundles are shown as the first spiral tube bundle (3) and the second spiral tube bundle (4). Each spiral tube bundle contains 2-6 spiral tubes. In this embodiment, each spiral tube bundle contains 4 spiral tubes, distributed internally and externally to form the spiral tube bundle. The figure shows four tubes from the first spiral tube bundle, from the outside to the inside: outermost tube 7, second tube 8, third tube 9, and fourth tube 10. The two spiral tube bundles are interlocked to form a double-helix structure. Interlocking means that the spiral lines of the two spiral tube bundles are arranged alternately to form a double-helix structure. The helical tube bundle at the discharge end is connected to a radial water inlet manifold, and the helical tube bundle at the feed end is connected to a radial water outlet manifold. In the figure, the end of the first helical tube bundle is connected to the water inlet manifold A1, and the end of the second helical tube bundle is connected to the water inlet manifold B2. The water outlet manifold is also radial and is not shown in the figure. The water outlet manifold is connected to the jacket 22 of the drum. The radial outer ends of the water inlet manifolds of the two sets of helical tube bundles are closed, and the inner ends are connected to the jacket of the water jacket 5 fixedly set in the center of the drum. The water jacket is composed of an outer tube and an inner tube, and there is a jacket between the outer tube and the inner tube. The drum jacket at the discharge end is connected to the inner tube of the water jacket through the return water pipe 6. A double-rotary joint 23 is installed on the water jacket. The water inlet is connected to the jacket of the water jacket through the double-rotary joint, and the water outlet is connected to the inner tube through the double-rotary joint. In this device, both the inlet and outlet are located at the discharge end. Compared to traditional devices where the inlet and outlet are located at opposite ends, this design is more advantageous for the arrangement of equipment at the inlet end and for centralized treatment of the inlet and outlet water. The inlet water temperature is generally no higher than 30℃, and the outlet water temperature is generally above 50℃.

[0016] As a further optimization, a multi-ring striking device is installed on the drum wall. Each ring of the striking device consists of multiple steel ball striking mechanisms. This includes a radial steel ball drop tube 11 fixedly welded to the inner wall of the drum, with a sealed weld between the drop tube and the outer wall of the drum. A tangential tube 212 is fixedly connected to the radial outer end of the drop tube. Two steel balls are freely placed inside the drop tube and can move freely within both the drop tube and the tangential tube. The tangential tube can accommodate two steel balls. By having two steel balls strike the inner wall of the drum twice in a single drop, the effect of removing adhering substances is enhanced.

[0017] When this device rotates, the spiral tube bundle acts as spiral blades to convey material from the feed end to the discharge end. Since the material is in direct contact with the spiral tube bundle, the heat exchange effect is good, and the spiral tube bundle has four tubes (four layers), resulting in a large heat exchange area. With two sets of spiral tube bundles conveying material from two spirals in one rotation of the drum, the backward conveying capacity is increased, so this equipment can achieve high efficiency.

[0018] After a detailed description of the embodiments of this utility model, those skilled in the art will clearly understand that various changes and modifications can be made without departing from the scope and spirit of the above-mentioned patent applications. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall fall within the scope of the technical solution of this utility model, and this utility model is not limited to the embodiments of the examples given in the specification.

Claims

1. A high-efficiency cooling conveyor, comprising a base, two sets of support rollers mounted on the base, a double-layered roller supported on the support rollers, a gear ring fixedly connected to the roller, the gear ring meshing with a gear, the gear being connected to a drive mechanism, the feed end and discharge end of the roller respectively rotating through a sealing element to a feed box and a discharge box connected thereto, characterized in that: A double-helix multi-layer coiled spiral cooling conveyor mechanism is fixedly installed inside the drum. The double-helix multi-layer coiled spiral cooling conveyor mechanism includes two independent spiral tube bundles, each with 2-6 spiral tubes. The two spiral tube bundles are interlocked to form a double-helix structure. The end of the spiral tube at the discharge end is connected to a radial water inlet manifold, and the spiral tube bundle at the feed end is connected to a radial water outlet manifold. The water outlet manifold connects to the drum's interlayer. The radial outer ends of the water inlet manifolds of the two spiral tube bundles are closed, and the inner ends are connected to the jacket of a water jacket fixedly installed at the center of the drum. The water jacket consists of an outer tube and an inner tube, with a jacket between the outer tube and the inner tube. The drum interlayer at the discharge end is connected to the inner tube of the water jacket through a return water pipe. A double-rotary joint is installed on the water jacket. The water inlet connects to the jacket of the water jacket through the double-rotary joint, and the water outlet connects to the inner tube through the double-rotary joint.

2. The high-efficiency cooling conveyor according to claim 1, characterized in that: Each set of helical tube bundles has 4 helical tubes, which are distributed inside and outside to form a helical tube bundle.

3. The high-efficiency cooling conveyor according to claim 1, characterized in that: Multiple striking devices are installed on the drum wall. Each striking device consists of multiple steel ball striking mechanisms. The striking device includes a radial steel ball drop tube fixedly welded to the inner wall of the drum. The steel ball drop tube is sealed and welded to the outer wall of the drum. A tangential tube is fixedly connected to the radial outer end of the steel ball drop tube. Steel balls are freely placed inside the steel ball drop tube and can move freely in both the steel ball drop tube and the tangential tube.

4. The high-efficiency cooling conveyor according to claim 3, characterized in that: The steel balls are in multiple quantities.

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