Coil pipe type cooling conveying device

Abstract

A coil pipe type cooling and conveying device comprises a base and a roller, the feeding end of the roller is rotationally connected with a feeding box, the discharging end of the roller is rotationally connected with a discharging box, water is introduced into an interlayer wall, a spiral metal coil pipe is fixedly arranged on the roller, the water inlet end of the coil pipe is located at the discharging end, and the water outlet end of the coil pipe is located at the feeding end. An axial water sleeve is fixedly arranged in the center of the feeding end of the roller and composed of an inner pipe and an outer pipe, a water jacket is formed between the inner pipe and the outer pipe, inlet water of the coil pipe is communicated with the water jacket through a pipeline, and the inner pipe is communicated with the interlayer of the discharging end of the roller through a water return pipeline. The water casing pipe is connected with a double-way rotary joint, inlet water is communicated with the water jacket through the double-way rotary joint, and outlet water is communicated with the inner pipe through the double-way rotary joint. The cooling and conveying device is good in effect.

Description

Technical Field

[0001] This utility model relates to a cooling conveyor, and more particularly to a coil-type cooling conveyor device, belonging to the field of mechanical equipment technology. Background Technology

[0002] Cold material conveyors are used for cooling and conveying high-temperature slag-like and powdery materials. Depending on the application, the feed temperature can range from several hundred degrees Celsius to 1000 degrees Celsius. Currently, the most common type of cold material conveyor is the horizontal drum conveyor, also known as a cold slag mill. Many related technical solutions for this equipment have been disclosed in Chinese patent literature, such as a horizontal cold slag mill disclosed in CN111765485A, a drum cold slag mill disclosed in CN118960282A, and CN113606572A. An improved multi-tube drum-type slag cooler is disclosed. The basic structure of this equipment consists of two sets of rotating rollers mounted on a base. A double-walled (sandwiched) drum is supported on the rollers, and a gear ring (or sprocket) is fixedly connected to the drum. The gear ring is driven by gear meshing (the sprocket is driven by a chain). Spiral blades are fixedly connected to the inner wall of the drum. Cooling water flows through the sandwich, generally in the opposite direction to the material flow. The feed end and discharge end of the drum are respectively sealed and rotatably connected to the feed box and discharge box. After the material enters the drum, as the drum rotates, the spiral blades push the material towards the discharge end. During the material flow process, heat exchange occurs between the material and the drum wall. The heat is carried away by the heat transfer medium (water) in the sandwich, achieving material cooling. The existing equipment needs further improvement and optimization in the following areas: how to achieve more efficient heat exchange, increase the equipment's processing capacity, how to better remove material adhering to the inner wall during operation, and how to ensure the stability of the equipment during operation. Summary of the Invention

[0003] The purpose of this invention is to provide a coil-type cooling and conveying device to provide more thorough heat exchange and improve the processing capacity of the equipment.

[0004] A coil-type cooling and conveying device includes a base, on which two sets of idler rollers are rotatably mounted. Each set of idler rollers consists of two rollers. Two radially protruding tires are fixedly connected to the circumferential wall of a drum with a sandwich wall, and the tires are supported on the two sets of idler rollers. A gear ring is fixedly connected to the outer circumferential wall of the drum between the two sets of idler rollers, and a gear meshes with the gear ring. The gear is connected to a drive mechanism. A feed box is rotatably connected to the feed end of the drum, and a discharge box is rotatably connected to the discharge end. Water flows through the sandwich wall. A spiral metal coil is fixedly installed on the drum. The water inlet is located at the discharge end, and the water outlet is located at the feed end. The water outlet of the coil is connected to the interlayer of the feed end of the drum. An axial water jacket is fixedly installed at the center of the feed end of the drum. The water jacket consists of an inner tube and an outer tube, and a water jacket is formed between the inner tube and the outer tube. The water inlet of the coil is connected to the water jacket through a pipeline. The inner tube is connected to the interlayer of the discharge end of the drum through a return water pipeline. A double-circuit rotary joint is connected to the water jacket. The water inlet is connected to the water jacket through the double-circuit rotary joint, and the water outlet is connected to the inner tube through the double-circuit rotary joint. The coil is a single tube or multiple tubes arranged radially in parallel.

[0005] Furthermore, the coil is located on the inner wall of the drum, and the coil may or may not be in contact with the inner wall.

[0006] Furthermore, the coil is a single tube with fins integrally welded onto it.

[0007] Furthermore, the coil consists of four radially arranged coils.

[0008] Furthermore, an impact device is installed on the drum, the impact device comprising a radial steel pipe that passes through the outer wall of the drum and is fixedly welded to the inner wall of the drum, a tangential horizontal pipe that is fixedly connected to the outer end of the radial steel pipe, and one or two steel balls that are movably placed inside the steel pipe, the horizontal pipe being able to accommodate two steel balls.

[0009] Furthermore, multiple impact devices are arranged along the axial direction of the drum, forming a ring of impact devices, and multiple rings of impact devices are arranged along the length direction of the drum.

[0010] Furthermore, an anti-slip wheel device is provided on both sides of one of the tires. The anti-slip wheel includes two anti-slip wheels that are rotatably installed on the front and rear sides of the tire, respectively. The axis of the anti-slip wheel is in the up-down direction, and the anti-slip wheel is a conical wheel with a smaller top and a larger bottom.

[0011] This device has high heat exchange efficiency, which helps to improve the processing capacity of the equipment. It can also prevent material adhesion through the impact device and the anti-slip wheel device can ensure the stable operation of the equipment. The specific implementation method will be described in detail. Attached Figure Description

[0012] Figure 1 This is a schematic side view of an embodiment of the present invention.

[0013] Figure 2 This is a schematic diagram of an embodiment of a coil.

[0014] Figure 3 This is a schematic diagram of the front and rear directions of this utility model.

[0015] Figure 4 This is a schematic diagram of the anti-rollover wheel. Detailed Implementation

[0016] 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.

[0017] The present invention will be further explained in detail with reference to the accompanying drawings, in which the following references are made: 1: roller; 2: idler roller; 3: tire; 4: gear ring; 5: gear; 6: impact device; 7: anti-roller device; 701: bearing; 702: shaft; 703: conical wheel; 8: water inlet; 9: water outlet; 10: rotary joint; 11: water jacket; 12: water inlet manifold; 13: interlayer; 14: coil.

[0018] As shown in the attached diagram, a coil-type cooling conveying device includes a base with two sets of idler rollers rotatably mounted on the base. Each set of idler rollers consists of two idler rollers 2. Two radially protruding tires 3 are fixedly connected to the circumference of a roller 1 with a sandwich wall. The tires are supported on the two sets of idler rollers. An anti-slip wheel device 7 is provided on both sides of one of the tires. The anti-slip wheel includes two anti-slip wheels 702 respectively rotatably mounted on the front and rear sides of the tire. The shaft 702 of the anti-slip wheel is oriented vertically, and a bearing is mounted on the shaft 702. The anti-slip wheel is a conical wheel 703 that is smaller at the top and larger at the bottom. The anti-slip wheel device makes the roller run more smoothly.

[0019] A gear ring 4 is fixedly connected to the outer peripheral wall of the roller between two sets of idlers. A gear 5 meshes with the gear ring and is connected to a drive mechanism. The drive mechanism is usually a motor-driven reducer, which drives the gear. A feed box is rotatably connected to the feed end of the roller, and a discharge box is rotatably connected to the discharge end. Water flows through the interlayer wall. A spiral metal coil is fixedly installed on the roller. When the roller rotates, the coil acts as a spiral blade to convey material backward. The coil is located on the inner wall of the roller, and the coil may or may not contact the inner wall. The water inlet end of the coil is located at the discharge end, and the water outlet end is located at the feed end. The water outlet of the coil connects to the interlayer at the feed end of the roller. An axial water jacket is fixedly installed at the center of the feed end of the roller. The water jacket consists of an inner tube and an outer tube, forming a water jacket between the inner and outer tubes. The water inlet of the coil 14 is connected to the water jacket through a pipeline. In this embodiment, as shown... Figure 2As shown, the coils are arranged in four radial parallel sections (along the radial direction of the drum). The water inlet of the four coils is connected to the water inlet manifold 12. Similarly, the water outlet of the four coils can also be connected to the water outlet manifold. The water outlet manifold is connected to the interlayer. The water inlet manifold is connected to the water jacket. The inner tube is connected to the interlayer 13 (i.e., the interlayer wall of the drum) at the discharge end of the drum through the return water pipe. A double-circuit rotary joint 10 is connected to the water jacket pipe 11. The water inlet 8 is connected to the water jacket through the double-circuit rotary joint, and the water outlet 9 is connected to the inner tube through the double-circuit rotary joint. The coils are single or multiple tubes arranged radially (radial direction of the drum) in parallel.

[0020] When the cooling requirement is not high, the coil is a single tube with fins integrally welded on it. The fins are also spiral-shaped like the single tube. The fins welded on the spiral tube are not shown in the figure. The fins can increase the cooling area and increase the amount of material pushed backward when the drum rotates.

[0021] As a further optimization, an impact device 7 is installed on the drum. The impact device includes a radial steel pipe that passes through the outer wall of the drum and is fixedly welded to the inner wall of the drum. A tangential (in the same direction as the drum's tangential direction) horizontal pipe is fixedly connected to the outer end of the radial steel pipe. One or two steel balls are movably placed inside the steel pipe, and the horizontal pipe can accommodate two steel balls. Multiple impact devices are arranged along the drum's axial direction, forming a ring of impact devices. Multiple rings of impact devices are arranged along the length of the drum.

[0022] Because the steel balls can move freely inside the steel pipe, during the rotation of the drum, the steel balls will undergo free fall and impact the inner wall of the drum. The impact will remove the material adhering to the inner wall.

[0023] The working principle of this device is the same as that of the existing drum-type spiral cooler. The material enters from the feed end, and during the rotation of the drum, it is continuously pushed towards the discharge end through the spiral coil, causing the material to rush out of the discharge end. Cooling water enters from the water jacket, through the inlet manifold, coil, outlet manifold, jacket, recovery pipeline, inner pipe, and outlet. The inlet water temperature is not higher than 30℃, and the outlet water temperature is not lower than 50℃.

[0024] 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 coil-type cooling and conveying device, comprising a base, two sets of idler rollers rotatably mounted on the base, each set consisting of two idler rollers, two radially protruding tires fixedly connected to the peripheral wall of a drum with a sandwich wall, the tires supporting the two sets of idler rollers, a gear ring fixedly connected to the outer peripheral wall of the drum between the two sets of idler rollers, a gear meshing with the gear ring, the gear being connected to a drive mechanism, a feed box rotatably connected to the feed end of the drum, a discharge box rotatably connected to the discharge end, and water flowing through the sandwich wall, characterized in that: The spiral metal coil pipe is fixedly arranged on the roller, the water inlet end of the coil pipe is located at the discharge end, the water outlet end is located at the feeding end, the water outlet of the coil pipe is communicated with the interlayer of the feeding end of the roller, an axial water jacket pipe is fixedly arranged at the center of the feeding end of the roller, the water jacket pipe is composed of an inner pipe and an outer pipe, a water jacket is formed between the inner pipe and the outer pipe, the water inlet of the coil pipe is communicated with the water jacket through a pipeline, the inner pipe is communicated with the interlayer of the discharge end of the roller through a backwater pipeline, a double-way rotary joint is connected to the water jacket pipe, the water inlet is communicated with the water jacket through the double-way rotary joint, the water outlet is communicated with the inner pipe through the double-way rotary joint, and the coil pipe is single-pipe or multi-pipe radially arranged.

2. A coil cooler as claimed in claim 1, wherein: The coil pipe is located at the inner wall of the roller, and the coil pipe is in contact or not in contact with the inner wall.

3. A coil cooler as claimed in claim 1, wherein: The coil pipe is single-pipe, and fins are integrally welded on the single-pipe.

4. A coil cooler as claimed in claim 1, wherein: The coil pipe is four radially arranged pipes.

5. A coil cooler as claimed in claim 1, wherein: The impact device is arranged on the roller, the impact device comprises a radial steel pipe which penetrates through the outer wall of the roller and is fixedly welded on the inner wall of the roller, a tangential horizontal pipe is fixedly connected to the outer end of the radial steel pipe, one or two steel balls are movably arranged in the steel pipe, and the horizontal pipe can accommodate two steel balls.

6. A coil cooler as claimed in claim 5, wherein: The impact device is arranged in the axial direction of the roller, and a plurality of impact devices form a circle of impact devices.

7. A coil cooler as claimed in claim 1, wherein: Anti-channeling wheel devices are arranged on both sides of one wheel belt, the anti-channeling wheel device comprises two anti-channeling wheels which are rotatably arranged on the front and rear sides of the wheel belt respectively, the axial direction of the anti-channeling wheel is upward and downward, and the anti-channeling wheel is a conical wheel which is small at the top and large at the bottom.

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