Lft-d recycled material granulation and drying equipment

Abstract

The utility model belongs to material conveying technical field, especially relates to a kind of LFT-D recycled material granulation air drying equipment, including water-cooling conveying unit and main conveying unit, the main conveying unit includes main transmission belt and the air drying device of main transmission belt and be set above main transmission belt, the water-cooling conveying unit includes two water-cooling conveyors and the water-cooling conveying support frame of water-cooling conveyor respectively support, two water-cooling conveyors head and tail are connected and form "∧" structure, the utility model provides a kind of LFT-D recycled material granulation air drying equipment, can satisfy the production and processing of LFT-D comminuted material modified plastics, can be reformed using existing equipment, with flexibility, reformation workload is small, conveying and air drying effect are good and the like advantages, it is suitable for wide range of use, and design the water-cooling conveying unit of "∧" structure, both sides have angle, be favorable to the removal gravity of material strip surface moisture.

Description

Technical Field

[0001] This utility model belongs to the field of material conveying technology, and specifically relates to an LFT-D recycled material granulation and drying equipment. Background Technology

[0002] LFT-D molding technology (Long-Fiber Reinforced Thermoplastic Direct) is a new process technology for long fiber reinforced thermoplastic composites, which is a process technology for the online direct production of products from long fiber reinforced thermoplastic composites.

[0003] LFT-D technology uses thermoplastic materials as raw materials, and the parts can be recycled and reused after reaching their service life, without causing pollution to the environment, making it environmentally friendly and recyclable.

[0004] Currently, LFT-D recycled materials are generally used in two ways: one is to add the pulverized material online. However, because the particle size of the pulverized material varies, it is difficult to precisely control the amount added.

[0005] Secondly, the crushed material can be granulated before use. This method, due to the granulation and batch mixing, ensures uniform particle size and batch consistency, allowing for accurate dosage during use. Products made using this method also have a better surface finish.

[0006] Water-cooled extrusion strips are one of the most common methods in the production of modified plastics. After plastic is plasticized by a twin-screw extruder, it undergoes processes such as water cooling in a water tank, drying in an air dryer, and pelletizing in a pelletizer. The water tank is generally about 5 meters long and is connected to a circulating water pool through pipes. It requires a stable foundation and good load-bearing capacity.

[0007] When processing LFT-D pulverized material using a water-cooled wire drawing production line, the current granulation and drying equipment has the following problems:

[0008] (1) The characteristics of LFT-D recycled material are that it generally contains 30% glass fiber and a certain amount of powder filler. Therefore, the material strip is easy to break during granulation and needs to be driven forward by a conveyor belt. However, the current conveyor drying equipment is relatively complicated and requires the existing water tank to be moved away from the production line and the conveyor drying equipment to be installed, which is a lot of work.

[0009] (2) Since LFT-D crushed material is generally consumed by the user, the current conveying and drying equipment is expensive, and the input-output ratio is not appropriate.

[0010] (3) The matrix of LFT-D material is generally a high-flowability material. After crushing and granulation, the material strip needs to be cooled with cold water when it exits the die. Otherwise, it is difficult to process smoothly. The current conveying and drying equipment does not meet the requirements. Generally, it does not come with a water tank. The installation of the one with the water tank is more troublesome and the workload is also larger.

[0011] (4) Due to different formulations, the glass fiber content and powder filling amount of LFT-D materials are also different. Therefore, the strip pulling process needs to be adjusted for different crushed materials, including the water inlet distance, the spacing and number of fans, so as to carry out effective cooling and drying processing.

[0012] Therefore, it is necessary to develop a pelletizing and drying equipment suitable for LFT-D recycled materials by utilizing existing equipment. Summary of the Invention

[0013] This invention provides an LFT-D recycled material granulation and drying equipment, which can solve the problems pointed out in the background art.

[0014] An LFT-D recycled material granulation and drying equipment includes a water-cooled conveying unit and a main conveying unit. The main conveying unit includes a main conveying support frame, a main transmission belt, and a drying device disposed above the main transmission belt. The water-cooled conveying unit includes two water-cooled conveying belts and water-cooled conveying support frames that support the water-cooled conveying belts respectively. The two water-cooled conveying belts are connected end to end to form a "∧" structure.

[0015] Preferably, the two water-cooled conveyor belts are hinged together and their angles are locked by a first hinge locking assembly. The water-cooled conveyor support frame includes several height-adjustable water-cooled conveyor support rods on both sides. The upper ends of the water-cooled conveyor support rods are hinged together with the water-cooled conveyor belts and their angles are locked by a second hinge locking assembly.

[0016] Preferably, the first hinge locking assembly includes a first angle adjusting plate disposed on both sides of one of the water-cooled conveyor belts and a first bolt on both sides of the other water-cooled conveyor belt, wherein the first angle adjusting plate is provided with a first arc-shaped hole that mates with the first bolt.

[0017] Preferably, the water-cooled conveyor support rod is a water-cooled support telescopic rod, and its height is locked by the first locking bolt. The second hinge locking assembly includes a second bolt member disposed at the upper end of the water-cooled conveyor support rod and a second angle adjustment plate disposed below the water-cooled conveyor belt in a corresponding manner. The second angle adjustment plate is provided with a second arc-shaped hole that cooperates with the second bolt member.

[0018] Preferably, the main conveying support frame includes several height-adjustable main conveying support rods on both sides.

[0019] Preferably, the main transmission support rod is a main support telescopic rod, and its height is locked by a second locking bolt.

[0020] Preferably, both the main drive belt and the water-cooled conveyor belt are canvas conveyor belts.

[0021] Preferably, the drying device is a drying machine, which is fixed above the main transmission belt by a gantry frame.

[0022] Preferably, the lower end of the main conveying support rod of the main conveying support frame and the lower end of the water-cooled conveying support rod of the water-cooled conveying support frame are respectively provided with a first mounting groove and a second mounting groove.

[0023] Beneficial effects: This utility model provides an LFT-D recycled material granulation and drying equipment, which can meet the production and processing needs of LFT-D pulverized material modified plastics. It can be modified using existing equipment, and has the advantages of flexibility, small modification workload, good conveying and drying effect, etc. It is suitable for widespread use. The water-cooled conveying unit with "∧" structure has angles on both sides, which is conducive to the removal of moisture from the surface of the material strip. Under the action of gravity, it is conducive to air drying. The water-cooled conveying unit can be adjusted in angle and height, and the main conveying unit can be adjusted in height to meet the drying needs of different materials, with good adaptability. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model.

[0025] Figure 2 This is a schematic diagram of the structure of the water-cooled conveyor unit of this utility model.

[0026] Figure 3 This is a schematic diagram of the main transmission unit of this utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] The following are the labels in the diagram: Water-cooled conveyor unit 1; Water-cooled conveyor belt 11; Water-cooled conveyor support frame 12; Water-cooled conveyor support rod 121; First locking bolt 122; Second mounting slot 13; Main conveyor unit 2; Main conveyor support frame 21; Main conveyor support rod 211; Second locking bolt 212; Main transmission belt 22; Drying device 23; Gantry frame 24; First mounting slot 25; First angle adjustment disc 31; First bolt 32; First arc-shaped hole 33; Second angle adjustment disc 41; Second bolt 42; Second arc-shaped hole 43. Detailed Implementation

[0029] The following describes a specific embodiment of the present invention in detail with reference to the accompanying drawings. However, it should be understood that the scope of protection of the present invention is not limited to the specific embodiment.

[0030] Example: Figure 1-3As shown in the figure, the LFT-D recycled material granulation and drying equipment provided in this utility model embodiment includes a water-cooled conveying unit 1 and a main conveying unit 2. The main conveying unit 2 includes a main conveying support frame 21, a main transmission belt 22 and a drying device 23 disposed above the main transmission belt 22. The water-cooled conveying unit 1 includes two water-cooled conveying belts 11 and water-cooled conveying support frames 12 that support the water-cooled conveying belts 11 respectively. The two water-cooled conveying belts are connected end to end to form a "∧" structure.

[0031] In some instances, two water-cooled conveyor belts 11 are hinged together and their angles are locked by a first hinge locking assembly, thereby adjusting the connection angle of the two water-cooled conveyor belts 11 as needed. The water-cooled conveyor support frame 12 includes several height-adjustable water-cooled conveyor support rods 121 on both sides. The upper ends of the water-cooled conveyor support rods 121 are hinged together with the water-cooled conveyor belts 11 and their angles are locked by a second hinge locking assembly.

[0032] Specifically, the first hinge locking assembly includes a first angle adjusting plate 31 disposed on both sides of one of the water-cooled conveyor belts 11 and a first bolt member 32 disposed on both sides of the other water-cooled conveyor belt 11. The first angle adjusting plate 31 is provided with a first arc-shaped hole 33 that mates with the first bolt member 32.

[0033] Specifically, the water-cooled conveyor support rod 121 is a water-cooled support telescopic rod, and its height is locked by the first locking bolt 122. The second hinge locking assembly includes a second bolt 42 set at the upper end of the water-cooled conveyor support rod 121 and a second angle adjustment plate 41 set below the water-cooled conveyor belt 11. The second angle adjustment plate 41 is provided with a second arc-shaped hole 43 that cooperates with the second bolt 42.

[0034] In some instances, to meet the drying needs of different materials, the main conveyor support frame 21 includes several height-adjustable main conveyor support rods 211 on both sides. The main conveyor support rods 211 are main support telescopic rods and are height-locked by the second locking bolts 212.

[0035] In some instances, both the main drive belt 22 and the water-cooled conveyor belt 11 are canvas conveyor belts. Both the main drive belt 22 and the water-cooled conveyor belt 11 are belt conveyors with a known structure, which will not be described in detail. The conveyor belts are made of canvas, which is wear-resistant and breathable. Since the surface of the LFT-D material strip is rough, the combination of the two makes it easier to drive the material strip forward. In addition, the drying device 23 is also conducive to drying.

[0036] Specifically, the drying device 23 is a dryer, which is fixed above the main drive belt 22 by a gantry frame 24.

[0037] Specifically, the lower end of the main conveying support rod 211 of the main conveying support frame 21 and the lower end of the water-cooled conveying support rod 121 of the water-cooled conveying support frame 12 are respectively provided with a first mounting groove 25 and a second mounting groove 13. The main conveying unit 2 and the water-cooled conveying unit 1 are fixed above the water tank by the first mounting groove 25 and the second mounting groove 13, respectively, and can be fixed by bolts.

[0038] The production steps of this utility model are as follows:

[0039] (1) Start the processing equipment. The LFT-D crushed material is plasticized by the twin-screw extruder. After exiting the die, it is cooled by water in the existing water tank for 20-40cm.

[0040] (2) The material strip passes through the water-cooled conveying unit. The front and rear sections of the water-cooled conveying unit have an angle, which can effectively remove the moisture on the surface of the material strip.

[0041] (3) The material strip is conveyed to the main conveying unit after passing through the water-cooled conveying unit. There can be two main conveying units, which are used in conjunction with the air-drying device to dry the moisture.

[0042] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. An LFT-D recycled material granulation and drying device, comprising a water-cooled conveying unit (1) and a main conveying unit (2), wherein the main conveying unit (2) comprises a main conveying support frame (21), a main transmission belt (22), and a drying device (23) disposed above the main transmission belt (22), characterized in that: The water-cooled conveying unit (1) includes two water-cooled conveyor belts (11) and water-cooled conveying support frames (12) that support the water-cooled conveyor belts (11) respectively. The two water-cooled conveyor belts are connected end to end to form a "∧" structure.

2. The LFT-D recycled material granulation and drying equipment according to claim 1, characterized in that: The two water-cooled conveyor belts (11) are hinged together and their angles are locked by the first hinge locking assembly. The water-cooled conveyor support frame (12) includes several height-adjustable water-cooled conveyor support rods (121) on both sides. The upper end of the water-cooled conveyor support rod (121) is hinged together with the water-cooled conveyor belt (11) and its angle is locked by the second hinge locking assembly.

3. The LFT-D recycled material granulation and drying equipment according to claim 2, characterized in that: The first hinge locking assembly includes a first angle adjusting plate (31) disposed on both sides of one of the water-cooled conveyor belts (11) and a first bolt (32) disposed on both sides of the other water-cooled conveyor belt (11). The first angle adjusting plate (31) is provided with a first arc-shaped hole (33) that mates with the first bolt (32).

4. The LFT-D recycled material granulation and drying equipment according to claim 3, characterized in that: The water-cooled conveyor support rod (121) is a water-cooled support telescopic rod, and its height is locked by the first locking bolt (122). The second hinge locking assembly includes a second bolt (42) set at the upper end of the water-cooled conveyor support rod (121) and a second angle adjustment plate (41) set below the water-cooled conveyor belt (11) in a corresponding manner. The second angle adjustment plate (41) is provided with a second arc-shaped hole (43) that cooperates with the second bolt (42).

5. The LFT-D recycled material granulation and drying equipment according to claim 1, characterized in that: The main conveyor support frame (21) includes several height-adjustable main conveyor support rods (211) on both sides.

6. The LFT-D recycled material granulation and drying equipment according to claim 5, characterized in that: The main transmission support rod (211) is the main support telescopic rod, and its height is locked by the second locking bolt (212).

7. An LFT-D recycled material granulation and drying device according to any one of claims 1-5, characterized in that: Both the main drive belt (22) and the water-cooled conveyor belt (11) are canvas conveyor belts.

8. An LFT-D recycled material granulation and drying device according to any one of claims 1-5, characterized in that: The air-drying device (23) is an air dryer, which is fixed above the main transmission belt (22) by a gantry frame (24).

9. An LFT-D recycled material granulation and drying device according to any one of claims 1-5, characterized in that: The lower end of the main conveying support rod (211) of the main conveying support frame (21) and the lower end of the water-cooled conveying support rod (121) of the water-cooled conveying support frame (12) are respectively provided with a first mounting groove (25) and a second mounting groove (13).

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