Cooling and sieving device for granular materials

Abstract

The cooling and sieving device comprises a vibrating screen, an air cooling box and a lifting machine, a feeding port of the air cooling box is connected with a discharging port of the lifting machine, the vibrating screen is arranged on the discharging port side of the air cooling box, the lifting machine comprises an outer shell, a spiral conveying paddle is arranged in the outer shell, and the spiral conveying paddle is arranged on the outer shell. The lower end of the outer shell is provided with a driving motor used for driving the spiral conveying paddle, a cooling cavity is formed in the outer shell, the lower end of the outer shell is provided with a cooling water inlet communicated with the cooling cavity, and the upper end of the outer shell is provided with a cooling water outlet communicated with the cooling cavity. According to the utility model, the cooling cavity is arranged inside the outer shell, so that the granular materials can be primarily cooled in the process of lifting the granular materials through the elevator, and then the granular materials are further cooled through the air cooling box, thereby ensuring the cooling effect on the granular materials.

Description

Technical Field

[0001] The utility model belongs to the technical field of granular material cooling, and in particular relates to a cooling and screening device for granular material. Background Art

[0002] After the rubber is crushed by magnetic mixing, the pellets are too hot to be processed immediately and need to be cooled to a certain temperature. Traditional cooling methods use the countercurrent principle, where the cooling airflow is in the opposite direction of the material flow. The material enters from the top, and the cold air enters the cooling chamber from the bottom, passing vertically through the material. The cold air first contacts the cold particles, gradually heating them up before contacting the hot particles. Within the chamber, the material temperature gradually decreases from top to bottom, while the air temperature gradually increases from bottom to top. The temperature difference between the cooling medium and the material is small, and the continuous airflow removes the heat from the particles, achieving a cooling effect.

[0003] However, due to the high density of rubber magnetic particles, the particles are prone to accumulation, so the cooling efficiency is low when using traditional cooling methods. Utility Model Content

[0004] The purpose of the present invention is to provide a cooling and screening device for granular materials to solve the problems raised in the above background technology. The present invention provides a cooling and screening device for granular materials, which has the characteristics of high cooling efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cooling and screening device for granular materials, comprising a vibrating screen, an air cooling box and an elevator, wherein the feed port of the air cooling box is connected to the discharge port of the elevator, the vibrating screen is arranged on the discharge port side of the air cooling box, the elevator comprises an outer shell, a screw conveying paddle is provided inside the outer shell, a driving motor for driving the screw conveying paddle is installed at the lower end of the outer shell, a cooling chamber is provided inside the outer shell, a cooling water inlet connected to the cooling chamber is provided at the lower end of the outer shell, and a cooling water outlet connected to the cooling chamber is provided at the upper end of the outer shell.

[0006] In order to ensure sufficient contact between the granular material and the air, thereby achieving effective cooling of the granular material, the air cooling box further includes a box body, and the interior of the box body is provided with a plurality of inclined and alternately arranged mesh plates from top to bottom.

[0007] In order to increase air circulation and thus ensure the cooling effect, the bottom of the box is a hollow structure, the top of the box is provided with a notch, and a second exhaust assembly is installed outside the notch.

[0008] To further enhance air flow and ensure effective cooling of the pellets, ventilation slots are provided on each of the four sides of the housing, corresponding to the gaps between two adjacent mesh panels. A mesh cover is attached to the exterior of the ventilation slots. A first exhaust assembly is mounted on the exterior of one of the ventilation slots. This first exhaust assembly includes an air duct and an exhaust fan mounted on the duct.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] 1. The utility model is provided with a cooling chamber inside the outer shell. When the pellets are lifted by the elevator, the pellets can be initially cooled down, and then further cooled down by the air cooling box, thereby ensuring the cooling effect of the pellets.

[0011] 2. The utility model screens the cooled granular material through a vibrating screen to ensure the uniformity of the granular material size;

[0012] 3. The air cooling box of the utility model includes a box body, and a plurality of inclined and alternately arranged mesh plates are arranged inside the box body from top to bottom. The granular material is transported downward through the mesh plates under the action of gravity, which can ensure sufficient contact with the air, thereby achieving effective cooling of the granular material;

[0013] 4. The bottom of the box of the utility model is a hollow structure, and the top of the box is provided with a notch. A second exhaust assembly is installed outside the notch to increase air circulation through the second exhaust assembly, thereby ensuring the cooling effect;

[0014] 5. The four sides of the box body of the utility model are provided with ventilation slots corresponding to the two adjacent mesh plates. A first exhaust assembly is installed outside one of the ventilation slots to further increase the flow of air, thereby ensuring the cooling effect on the granular material. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the hoist of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the air-cooled box of the utility model;

[0018] Figure 4 This is a schematic cross-sectional view of the air-cooled box of the utility model;

[0019] In the figure: 1. Vibrating screen; 2. Air cooling box; 21. Box body; 22. Mesh plate; 23. Ventilation slots; 24. Mesh cover; 3. Elevator; 31. Outer shell; 32. Screw conveyor; 33. Cooling water outlet; 34. Cooling water inlet; 35. Drive motor; 4. First exhaust assembly; 5. Second exhaust assembly. DETAILED DESCRIPTION

[0020] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0021] Example 1

[0022] See also Figure 1-4 The utility model provides the following technical solutions: a cooling and screening device for granular materials, comprising a vibrating screen 1, an air cooling box 2 and an elevator 3, wherein the feed port of the air cooling box 2 is connected to the discharge port of the elevator 3, the vibrating screen 1 is arranged on the discharge port side of the air cooling box 2, and the elevator 3 comprises an outer shell 31, a screw conveying paddle 32 is provided inside the outer shell 31, a driving motor 35 for driving the screw conveying paddle 32 is installed at the lower end of the outer shell 31, a cooling cavity is provided inside the outer shell 31, a cooling water inlet 34 communicated with the cooling cavity is provided at the lower end of the outer shell 31, and a cooling water outlet 33 communicated with the cooling cavity is provided at the upper end of the outer shell 31. The structure and principle of the vibrating screen 1 have been disclosed in a plastic particle screening device disclosed in Chinese patent application No. 202420463614.2.

[0023] By adopting the above technical solution, the utility model sets a cooling chamber inside the outer shell 31. In the process of lifting the granular material by the elevator 3, the granular material can be initially cooled down, and then the granular material is further cooled down by the air cooling box 2, thereby ensuring the cooling effect of the granular material; the utility model screens the cooled granular material through the vibrating screen 1, thereby ensuring the uniformity of the size of the granular material.

[0024] Specifically, the air cooling box 2 includes a box body 21 , and a plurality of inclined and alternately arranged mesh panels 22 are provided inside the box body 21 from top to bottom.

[0025] By adopting the above technical solution, the granular material is transported downward through the mesh plate 22 under the action of gravity, which can ensure sufficient contact with the air, thereby achieving effective cooling of the granular material.

[0026] Example 2

[0027] The difference between this embodiment and embodiment 1 is that: specifically, the bottom of the box body 21 is a hollow structure, the top of the box body 21 is provided with a notch, and a second exhaust component 5 is installed outside the notch. The structure of the second exhaust component 5 is the same as that of the first exhaust component 4.

[0028] By adopting the above technical solution, the air circulation is increased through the second exhaust assembly 5, thereby ensuring the cooling effect.

[0029] Example 3

[0030] The difference between this embodiment and embodiment 1 is that: specifically, ventilation slots 23 corresponding to the two adjacent mesh panels 22 are provided on the four sides of the box body 21, and the outside of the ventilation slots 23 is connected to a mesh cover 24. A first exhaust component 4 is installed on the outside of one of the ventilation slots 23, and the first exhaust component 4 includes an air guide cover and an exhaust fan installed on the air guide cover.

[0031] By adopting the above technical solution, the flow of air is further increased, thereby ensuring the cooling effect on the granular material.

[0032] In summary, the present invention sets a cooling chamber inside the outer shell 31. In the process of lifting the granular material by the elevator 3, the granular material can be initially cooled, and then further cooled by the air cooling box 2, thereby ensuring the cooling effect of the granular material; the present invention screens the cooled granular material by the vibrating screen 1, thereby ensuring the uniformity of the size of the granular material; the air cooling box 2 of the present invention includes a box 21, and the interior of the box 21 is provided with a plurality of inclined and alternately arranged mesh plates 22 from top to bottom. The granular material passes through the mesh plates 2 under the action of gravity. 2 is transported downward to ensure sufficient contact with the air, thereby achieving effective cooling of the granular material; the bottom of the box body 21 of the present invention is a hollow structure, and the top of the box body 21 is provided with a notch, and the outside of the notch is installed with a second exhaust component 5, which increases the circulation of air through the second exhaust component 5, thereby ensuring the cooling effect; the four sides of the box body 21 of the present invention are provided with ventilation slots 23 corresponding to the two adjacent mesh plates 22, and the outside of one of the ventilation slots 23 is installed with a first exhaust component 4, which further increases the flow of air, thereby ensuring the cooling effect of the granular material.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cooling and screening device for granular materials, characterized in that: The invention comprises a vibrating screen, an air cooling box and an elevator, wherein the feed port of the air cooling box is connected to the discharge port of the elevator, the vibrating screen is arranged on the discharge port side of the air cooling box, and the elevator comprises an outer shell, a screw conveying paddle is arranged inside the outer shell, a driving motor for driving the screw conveying paddle is installed at the lower end of the outer shell, a cooling chamber is arranged inside the outer shell, a cooling water inlet communicating with the cooling chamber is arranged at the lower end of the outer shell, and a cooling water outlet communicating with the cooling chamber is arranged at the upper end of the outer shell; The air-cooled box includes a box body, and a plurality of inclined and alternately arranged mesh plates are provided inside the box body from top to bottom. Ventilation slots corresponding to two adjacent mesh plates are provided on the four sides of the box body, and a first exhaust assembly is installed outside one of the ventilation slots.

2. A cooling and screening device for granular materials according to claim 1, characterized in that: The bottom of the box body is a hollow structure, the top of the box body is provided with a notch, and the outside of the notch is installed with a second exhaust assembly.

3. The cooling and screening device for granular materials according to claim 1, characterized in that: The outside of the ventilation slot is connected with a mesh cover.

4. The cooling and screening device for granular materials according to claim 1, characterized in that: The first air exhaust assembly includes an air guide cover and an exhaust fan installed on the air guide cover.

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