Cooling device for high-concentration flame-retardant master batch brace

Abstract

The utility model relates to the field of cooling devices, in particular to a cooling device for high-concentration flame-retardant master batch braces, which comprises a conveying mechanism and spraying mechanisms arranged above the conveying mechanism, the spraying mechanisms spray water mist to material strips on the conveying mechanism, and a plurality of groups of spraying mechanisms are uniformly arranged at intervals along the length direction of the conveying mechanism; air cooling mechanisms are arranged above the conveying mechanism at the downstream of the spraying mechanism, and a plurality of groups of air cooling mechanisms are uniformly arranged at intervals in the length direction of the conveying mechanism; the spraying mechanism and the air cooling mechanism are detachably mounted above the conveying mechanism; firstly, water mist is sprayed to high-temperature material strips through the spraying mechanism for cooling, and then the material strips are blown to be cooled through the air cooling mechanism.

Description

Technical Field

[0001] This utility model relates to the field of cooling devices, specifically to a cooling device for high-concentration flame-retardant masterbatch strips. Background Technology

[0002] High-concentration flame retardant masterbatch is characterized by a high flame retardant filling ratio and poor flowability. Depending on the application, the concentration of flame retardant masterbatch ranges from 50% to 80%. Carriers include PE and PP, and it is mainly used in new energy materials, automobiles, and electronics. It offers advantages such as good dispersibility and no dust generation. However, high-concentration flame retardant masterbatch is prone to breakage during the traction and drawing process. It is also difficult to cool quickly in ambient air, leading to breakage and clumping, resulting in poor particle appearance and affecting product quality.

[0003] Traditional cooling methods for plastic strips involve drawing the strip into a water tank and using liquid water as the cooling medium for rapid cooling. For example, utility model patent application number CN201720007887.6 discloses a cooling water tank for a plastic extruder, which includes a tank body with an inlet at one end and an outlet at the other. The tank body is divided into two sections: a first section and a second section. The first section contains a roller for pressing the strip into the water, and the second section is supported by a roller for lifting the strip. The first roller presses the strip into the water, and the second roller changes the direction of movement of the strip, causing it to exit the water and drain a large amount of water droplets adhering to it.

[0004] In reality, the cooling process of high-concentration flame retardant masterbatch using traditional cooling methods can lead to the loss of effective flame retardant components (high solubility at high temperatures). At the same time, because flame retardant masterbatch is prone to absorbing water, its water content is high (the flame retardant absorbs water severely at high temperatures), resulting in defects in the manufactured parts. Utility Model Content

[0005] The purpose of this invention is to provide a cooling device for high-concentration flame retardant masterbatch strips, which can prevent the moisture content of the flame retardant masterbatch from increasing, thereby solving the defects mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A cooling device for high-concentration flame-retardant masterbatch strips includes a conveying mechanism with an extruder at one end and a pelletizer at the other end, the conveying mechanism conveying the strips output from the extruder to the pelletizer; it also includes a spraying mechanism positioned above the conveying mechanism, the spraying mechanism spraying water mist onto the strips on the conveying mechanism, the spraying mechanism being arranged in multiple sets evenly spaced along the length of the conveying mechanism; and an air-cooling mechanism positioned above the conveying mechanism downstream of the spraying mechanism, the air-cooling mechanism being arranged in multiple sets evenly spaced along the length of the conveying mechanism; both the spraying mechanism and the air-cooling mechanism are detachably mounted above the conveying mechanism.

[0008] As a further improvement, the conveying mechanism is located inside the water tank, which is a long strip with an open top and is connected to a condensate collection mechanism; both the spraying mechanism and the air-cooling mechanism can be detachably installed on the top of the water tank.

[0009] As a further improvement, the spraying mechanism includes a lower housing with an opening at the bottom, a spray pipe inside the lower housing, and an upper housing hinged to the lower housing for closing its top.

[0010] As a further improvement, the lower housing is fixedly installed with support plates on both sides along the width direction of the conveying mechanism. The support plates are provided with a horizontal part for resting on the upper end of the water tank. The end of the horizontal part away from the lower housing is provided with a vertical part that bends downward. A first fixing screw for pressing against the outer wall of the water tank is screwed onto the vertical part.

[0011] As a further improvement, the air-cooling mechanism includes a mounting frame with a horizontal plate for resting on the upper end of the water tank. A fan is mounted on the top of the horizontal plate. Vertical plates that bend downwards are respectively provided at both ends of the horizontal plate along the width direction of the conveying mechanism. Second fixing screws for pressing against the outer wall of the water tank are screwed onto the vertical plates.

[0012] As a further improvement, the spray pipe includes a main spray pipe with a water inlet, and a plurality of parallel spray branch pipes on one side of the main spray pipe. The end of the spray branch pipe away from the main spray pipe extends into the lower box, and a plurality of atomizing nozzles are evenly spaced at the bottom of the spray branch pipe located in the lower box.

[0013] As a further improvement, the conveying mechanism is a belt conveyor.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This application first uses a spraying mechanism to spray water mist onto the high-temperature material strip to cool it down. When the water mist comes into contact with the high-temperature material strip, it can evaporate quickly, thereby avoiding the increase of the moisture content of the high-concentration flame retardant masterbatch. Then, the material strip is cooled down by blowing air through the air-cooling mechanism. The air-cooling mechanism can dry the water vapor on the material strip while achieving the cooling effect, further avoiding the increase of the moisture content of the high-concentration flame retardant masterbatch.

[0016] 2. The combination of water mist spraying and air cooling can improve the cooling efficiency of flame retardant masterbatch, reduce breakage, and improve the stability of flame retardant masterbatch production.

[0017] 3. After loosening the first fixing screw, the spray mechanism can be removed from the top of the water tank so that the number of spray mechanisms installed can be adjusted according to usage requirements; after loosening the second fixing screw, the air-cooling mechanism can be removed from the top of the water tank so that the number of air-cooling mechanisms installed can be adjusted according to usage requirements, allowing for convenient and flexible adjustment. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model;

[0020] Figure 2 This is a three-dimensional schematic diagram of the spraying mechanism according to an embodiment of the present utility model;

[0021] Figure 3 This is a left-side view of the air-cooling mechanism according to an embodiment of the present utility model;

[0022] Figure 4 This is a schematic diagram of the conveying mechanism according to an embodiment of the present utility model.

[0023] In the diagram: 1-Conveying mechanism; 2-Extruder; 3-Pelletizer; 4-Water tank; 5-Support roller; 6-Conveyor belt; 7-Drive motor; 8-Condensate collection mechanism; 9-Spraying mechanism; 10-Air-cooling mechanism; 11-Lower housing; 12-Spraying branch pipe; 13-Atomizing nozzle; 14-Upper housing; 15-Support plate; 16-Horizontal section; 17-Vertical section; 18-First fixing screw; 19-Mounting bracket; 20-Horizontal plate; 21-Fan; 22-Vertical plate; 23-Second fixing screw; 24-Spraying main pipe. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0025] like Figures 1 to 4 As shown, a cooling device for high-concentration flame-retardant masterbatch strips includes a conveying mechanism 1. An extruder 2 is located at the head end of the conveying mechanism 1, and a pelletizer 3 is located at the tail end. The conveying mechanism 1 is housed within a water tank 4, which is an elongated strip with an open top. The length of the water tank 4 extends in the same direction as the conveying mechanism 1. In this embodiment, the conveying mechanism 1 is a belt conveyor. Specifically, the conveying mechanism 1 includes several support rollers 5 rotatably mounted within the water tank 4. A conveyor belt 6 is fitted around the outer side of each support roller 5. One of the support rollers 5 is connected to a drive motor 7, which drives the conveyor belt 6 to rotate. The conveyor belt 6 transports the material strips output from the extruder 2 to the pelletizer 3 to the left. Additionally, a support mechanism is located at the bottom of the water tank 4, causing the water tank 4 to tilt to the left and down to the right. The right end of the water tank 4 is connected to a condensate collection mechanism 8 via a pipe to collect the water mist sprayed by the spraying mechanism 9.

[0026] It also includes a spraying mechanism 9 located above the conveying mechanism 1, which sprays water mist onto the material strips on the conveying mechanism 1. Multiple sets of spraying mechanisms 9 are evenly spaced along the length of the conveying mechanism 1. A cooling mechanism 10 is located above the conveying mechanism 1 downstream of the spraying mechanism 9, and multiple sets of cooling mechanisms 10 are evenly spaced along the length of the conveying mechanism 1. As the material strips move along the conveying mechanism 1, they are first cooled by spraying water mist onto the high-temperature material strips through the spraying mechanism 9. The water mist evaporates rapidly upon contact with the high-temperature material strips, thus preventing the moisture content of the high-concentration flame-retardant masterbatch from increasing. After the material strips have cooled down below the multiple sets of spraying mechanisms 9, they are further cooled by blowing air through the cooling mechanism 10. The cooling mechanism 10 not only cools the material strips but also dries the moisture on them, further preventing the moisture content of the high-concentration flame-retardant masterbatch from increasing.

[0027] Both the spraying mechanism 9 and the air-cooling mechanism 10 can be detached and installed above the conveying mechanism 1.

[0028] like Figure 2As shown, the spraying mechanism 9 includes a lower housing 11 with an opening at the bottom. A spraying pipe is provided inside the lower housing 11. The spraying pipe includes a horizontally extending main spraying pipe 24 located on one side of the lower housing 11. The main spraying pipe 24 has a water inlet connected to a water source via a pipeline. A plurality of parallel spraying branch pipes 12 are provided on one side of the main spraying pipe 24. The spraying branch pipes 12 are horizontally arranged and evenly spaced along the length of the main spraying pipe 24. The end of the spraying branch pipe 12 away from the main spraying pipe 24 extends into the lower housing 11. The spraying branch pipe 12 is welded to the lower housing 11 or fixed to the lower housing 11 by bolts. A plurality of atomizing nozzles 13 are evenly spaced at the bottom of the spraying branch pipe 12 located in the lower housing 11. Water mist is sprayed onto the material strip on the conveying mechanism 1 through the atomizing nozzles 13. In addition, the lower housing 11 is also hinged to an upper housing 14 for sealing its top. A handle is welded to the upper housing 14. When the atomizing nozzle 13 sprays water mist, the upper housing 14 is rotated to seal the top of the lower housing 11 to prevent water mist from splashing out.

[0029] The lower housing 11 has inverted L-shaped support plates 15 fixedly installed on the front and rear sides along the width direction of the conveying mechanism 1. The support plates 15 have a horizontal part 16 for resting on the upper end of the water tank 4. One end of the horizontal part 16 is welded to the lower housing 11. The end of the horizontal part 16 away from the lower housing is welded with or integrally bent into a vertical part 17 that bends downward. A first fixing screw 18 for pressing against the outer wall of the water tank 4 is screwed onto the vertical part 17.

[0030] When installing the spray mechanism 9, place the horizontal parts 16 of the support plates 15 on the front and rear sides of the lower housing 11 on the upper ends of the front and rear sides of the water tank 4, and at the same time, position the water tank 4 between the two vertical parts 17. Tighten the first fixing screws 18 so that the first fixing screws 18 on the front and rear sides abut against the front and rear side walls of the water tank 4, thus completing the fixing of the spray mechanism 9. Conversely, after loosening the first fixing screws 18, the spray mechanism 9 can be removed from the top of the water tank 4 so that the number of spray mechanisms 9 installed can be adjusted according to the usage requirements.

[0031] like Figure 3 As shown, the air-cooling mechanism 10 includes a gate-shaped mounting bracket 19. The mounting bracket 19 is provided with a horizontal plate 20 for resting on the upper end of the water tank 4. A fan 21 is bolted to the top of the horizontal plate 20. Ventilation holes are provided at the corresponding positions of the lower ends of the horizontal plate 20 and the fan 21. Vertical plates 22 that bend downwards are provided at the front and rear ends of the horizontal plate 20 along the width direction of the conveying mechanism 1. Second fixing screws 23 for pressing against the outer wall of the water tank 4 are screwed onto the vertical plates 22.

[0032] When installing the air-cooling mechanism 10, place the horizontal plate 20 on the upper end of the water tank 4 and position the water tank 4 between the front and rear vertical plates 22. Tighten the second fixing screws 23 so that the second fixing screws 23 on the front and rear sides respectively abut against the front and rear side walls of the water tank 4 to complete the fixing of the air-cooling mechanism 10. Conversely, after loosening the second fixing screws 23, the air-cooling mechanism 10 can be removed from the top of the water tank 4 so that the number of air-cooling mechanisms 10 installed can be adjusted according to the usage requirements.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cooling device for high-concentration flame-retardant masterbatch strips, characterized in that: The system includes a conveying mechanism (1), with an extruder (2) at its head and a pelletizer (3) at its tail. The conveying mechanism (1) conveys the strips output by the extruder (2) to the pelletizer (3). It also includes a spraying mechanism (9) located above the conveying mechanism (1), which sprays water mist onto the strips on the conveying mechanism (1). Multiple sets of spraying mechanisms (9) are evenly spaced along the length of the conveying mechanism (1). An air-cooling mechanism (10) is located above the conveying mechanism (1) downstream of the spraying mechanism (9). Multiple sets of air-cooling mechanisms (10) are evenly spaced along the length of the conveying mechanism (1). Both the spraying mechanism (9) and the air-cooling mechanism (10) can be detachably installed above the conveying mechanism (1).

2. The cooling device for high-concentration flame-retardant masterbatch strips as described in claim 1, characterized in that: The conveying mechanism (1) is located inside the water tank (4), which is a long strip with an open top. The water tank (4) is connected to the condensate collection mechanism (8). The spraying mechanism (9) and the air-cooling mechanism (10) can be detachably installed on the top of the water tank (4).

3. The cooling device for high-concentration flame-retardant masterbatch strips as described in claim 2, characterized in that: The spraying mechanism (9) includes a lower box (11) with an opening at the bottom. A spray pipe is provided inside the lower box (11), and an upper box (14) is hinged to the lower box (11) to close its top.

4. The cooling device for high-concentration flame-retardant masterbatch strips as described in claim 3, characterized in that: The lower housing (11) is fixedly installed with support plates (15) on both sides along the width direction of the conveying mechanism (1). The support plates (15) are provided with a horizontal part (16) for resting on the upper end of the water tank (4). The horizontal part (16) away from the lower housing (11) is provided with a vertical part (17) that bends downward. The vertical part (17) is screwed with a first fixing screw (18) for abutting against the outer wall of the water tank (4).

5. The cooling device for high-concentration flame-retardant masterbatch strips as described in claim 2, characterized in that: The air-cooling mechanism (10) includes a mounting frame (19), which has a horizontal plate (20) for resting on the upper end of the water tank (4). A fan (21) is installed on the top of the horizontal plate (20). The horizontal plate (20) has vertical plates (22) bent downward at both ends along the width direction of the conveying mechanism (1). A second fixing screw (23) for pressing against the outer wall of the water tank (4) is screwed onto the vertical plate (22).

6. The cooling device for high-concentration flame-retardant masterbatch strips as described in claim 3, characterized in that: The spray pipe includes a main spray pipe (24), which has a water inlet. A plurality of spray branch pipes (12) are arranged in parallel on one side of the main spray pipe (24). The end of the spray branch pipe (12) away from the main spray pipe (24) extends into the lower box (11). The bottom of the spray branch pipe (12) located in the lower box (11) is provided with a plurality of atomizing nozzles (13) evenly spaced.

7. The cooling device for high-concentration flame-retardant masterbatch strips as described in claim 1, characterized in that: The conveying mechanism (1) is a belt conveyor.

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