A cooling device for the preparation of miscanthus pellets

Abstract

The utility model discloses a cooling device for wood particle preparation, including cooling tower, the cooling tower is conical, and the outside is surrounded with spiral material pipe, and the inside is surrounded with cooling pipe, the cooling tower top and bottom are personally experienced sth, differ with spiral material pipe intercommunication's opening and discharge gate that are equipped with, the cooling tower top is provided with a ring -shaped enclosure, and is provided with feed hopper above the enclosure, the feed hopper bottom export place is provided with vibration head, vibration head bottom is connected with connecting rod, through the material pipe of spiral design increase the time of particle and stay on the cooling tower, improve the cooling effect, through the vibration head of vibration design benefit promotes the sliding of particle and prevents the card material, and through the interval between control feed hopper and vibration head to adjust the feed rate.

Description

Technical Field

[0001] This utility model relates to the field of mixed wood pellet cooling technology, specifically a cooling device for the preparation of mixed wood pellets. Background Technology

[0002] The temperature of the granulated hardwood pellets can reach 70-90℃. The cooling process after pelleting can reduce the internal temperature of the pellets, increase their hardness and mechanical strength, reduce the breakage rate during transportation and storage, and facilitate subsequent packaging. In order to control the rate at which the pellets enter the cooling tower and prevent the pellets from accumulating in the cooling tower and affecting the cooling effect, this utility model proposes a cooling device for the preparation of hardwood pellets. Utility Model Content

[0003] The purpose of this invention is to provide a cooling device for the preparation of miscellaneous wood pellets, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a cooling device for preparing mixed wood pellets, comprising a cooling tower. The cooling tower is conical, with a spiral feed tube surrounding the outer side and a cooling pipe surrounding the inner side. The top and bottom of the cooling tower have openings communicating with the spiral feed tube and a discharge port, respectively. An annular baffle is provided at the top of the cooling tower, and a feed hopper is provided above the baffle. A vibrating head is provided at the bottom outlet of the feed hopper, and a connecting rod is connected to the bottom of the vibrating head. The spiral feed tube, cooling pipe, and the filling material inside the cooling tower should be made of materials with good thermal conductivity to ensure heat exchange efficiency. During operation, the mixed wood pellets fall from the feed hopper into the top of the cooling tower and slide downwards along the spiral feed tube under their own gravity, exchanging heat with the cooling water flowing inside the cooling pipe. The spiral feed tube needs to have sufficient inclination to allow the pellets to slide smoothly.

[0005] Preferably, an adjusting screw is connected to the outside of the feed hopper. The adjusting screw passes through a protrusion on the outside of the top enclosure of the cooling tower and is slidably connected to the protrusion. Two limiting nuts are screwed onto the adjusting screw. The two limiting nuts are respectively located on the upper and lower sides of the protrusion on the outside of the enclosure. By rotating and adjusting the position of the limiting nuts on the adjusting screw, the height of the feed hopper and the distance between the bottom of the feed hopper and the vibrating head can be adjusted, thereby adjusting the falling speed of the particles.

[0006] Preferably, one end of the connecting rod is connected to the vibrating head, and the other end is slidably disposed inside the cooling tower and connected to an mounting plate. A vibrating motor is mounted on the mounting plate, and the bottom of the mounting plate is connected to the side wall of the cooling tower by a spring. The vibrating motor drives the vibrating head to perform repeated high-frequency up-and-down vibrations through the rotation of its internal eccentric rotor, making it less likely for particles to get stuck in the gap between the feed hopper and the vibrating head.

[0007] Compared with the prior art, the beneficial effects of this utility model are: the spiral-designed feed tube increases the residence time of particles on the cooling tower, thereby improving the cooling effect; the vibrating head with a vibration design facilitates the sliding of particles and prevents material jamming; and the feeding rate is adjusted by controlling the distance between the feed hopper and the vibrating head. Attached Figure Description

[0008] Figure 1 This is a cross-sectional view of the internal structure of the cooling tower of this utility model; Figure 2 This is a top sectional view of the cooling tower of this utility model.

[0009] In the diagram: 1 Cooling tower, 11 Spiral feed pipe, 12 Discharge port, 13 Cooling pipe, 2 Feed hopper, 21 Adjusting screw, 3 Vibrating head, 31 Connecting rod, 32 Vibrating motor. Detailed Implementation

[0010] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0011] Referring to Figures (1-2), a cooling device for preparing mixed wood pellets includes a cooling tower 1, which is conical in shape, with a spiral feed pipe 11 surrounding its outer side and a cooling pipe 13 surrounding its inner side. The top and bottom of the cooling tower 1 have openings communicating with the spiral feed pipe 11 and a discharge port 12, respectively. An annular enclosure is provided at the top of the cooling tower 1, and a feed hopper 2 is positioned above the enclosure. A vibrating head 3 is located at the bottom outlet of the feed hopper 2, and a connecting rod 31 is connected to the bottom of the vibrating head 3. An adjusting screw 21 is connected to the outer side of the feed hopper 2, passing through a protrusion on the outer side of the top enclosure of the cooling tower 1 and slidably connected to the protrusion. Two limiting nuts are screwed onto the adjusting screw 21. One end of the connecting rod 31 is connected to the vibrating head 3, and the other end is slidably disposed inside the cooling tower 1 and connected to a mounting plate. A vibration motor 32 is mounted on the mounting plate, and the bottom of the mounting plate is connected to the side wall of the cooling tower 1 via a spring.

[0012] When in use, the device pumps cold water into the cooling pipe 13. The cold water can be prepared by a chiller, evaporative condenser, or other equipment. The wood particles are then conveyed to the feed hopper 2 via a conveyor belt or other material conveying equipment. The wood particles slide down from the gap between the feed hopper 2 and the vibrating head 3 into the cooling tower 1, and then enter the spiral feed pipe 11 from the cooling tower 1. During the process of sliding down the spiral feed pipe 11, the particles exchange heat with the cooling pipe 13, thus cooling the particles.

[0013] The orientations or positional relationships shown in the accompanying drawings are for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0014] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0015] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cooling device for the preparation of miscanthus pellets, comprising a cooling tower (1), characterized in that: The cooling tower (1) is conical, with a spiral feed pipe (11) surrounding the outside and a cooling pipe (13) surrounding the inside. The top and bottom of the cooling tower (1) are respectively provided with an opening and a discharge port (12) communicating with the spiral feed pipe (11). The top of the cooling tower (1) is provided with an annular enclosure, and a feed hopper (2) is provided above the enclosure. A vibrating head (3) is provided at the bottom outlet of the feed hopper (2), and a connecting rod (31) is connected to the bottom of the vibrating head (3).

2. A cooling device for the preparation of miscut particles according to claim 1, characterized in that: An adjusting screw (21) is connected to the outside of the feed hopper (2). The adjusting screw (21) passes through the protrusion on the outside of the top enclosure of the cooling tower (1) and is slidably connected to the protrusion. Two limiting nuts are screwed onto the adjusting screw (21).

3. The cooling device for preparing mixed wood pellets according to claim 1, characterized in that: One end of the connecting rod (31) is connected to the vibrating head (3), and the other end is slidably set inside the cooling tower (1) and connected to an installation plate. A vibration motor (32) is installed on the installation plate, and the bottom of the installation plate is connected to the side wall of the cooling tower (1) by a spring.

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