Cooling device of double-screw extruder

Abstract

The cooling device comprises a double-screw extruder body, a heat dissipation shell is arranged on the double-screw extruder body, a cooling cavity is formed in the heat dissipation shell, a water outlet pipe is fixedly connected to the surface of the heat dissipation shell, and a water pump is fixedly connected to the end, away from the heat dissipation shell, of the water outlet pipe. The water outlet end of the water pump is fixedly connected with a connecting pipe, the end, away from the water pump, of the connecting pipe is fixedly connected with a water tank, the top end of the water tank is movably connected with a cover body, the bottom end of the cover body is fixedly connected with a plurality of cooling fins, and the cooling fins movably penetrate through and extend to the position above the cover body; the water pump is started to pump cooling water in the cooling tank through the water outlet pipe, then the cooling water is conveyed into the water tank through the connecting pipe, at the moment, the cooling water is filtered through the filter cotton, scale formed in the cooling cavity in the long-term circulation process of the cooling water can be reduced through filtering of the filter cotton, and therefore the influence on the cooling effect is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to extruder cooling technical field especially relates to a cooling device of double screw extruder. BACKGROUND

[0002] The double screw extruder is first to heat the material, make it melt, then pass through the double screw and carry out the next extrusion work under the condition of working, needs the preliminary cylinder cooling before extruding, adopts the circulation cooling water mode to carry out the traditional cooling mode.

[0003] But the cooling water usually contains certain mineral impurities, in the long-term operation process, these impurities are easy to form the scale in the cooling water pipe or the cooling cavity inner wall, the scale accumulation can reduce the inner diameter of the cooling water pipe or the cooling cavity, reduces the flow of cooling water, thereby influence cooling effect. UTILITY MODEL CONTENTS

[0004] In order to solve the problems in prior art, the utility model provides a cooling device of double screw extruder, through the water pump is started and is extracted to the cooling water in the cooling box through the water outlet pipe, then is transported to the water tank through the connecting pipe, the cooling water at this time can be filtered through the filter cotton, the scale formed in the cooling cavity in the long-term circulation process of cooling water can be reduced through the filtration of filter cotton, thereby reducing the influence on cooling effect.

[0005] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a cooling device of double screw extruder, including double screw extruder body, be equipped with the heat dissipation shell on the double screw extruder body, the inside of heat dissipation shell is equipped with cooling cavity, the surface of heat dissipation shell is fixedly connected with water outlet pipe, the end of water outlet pipe away from heat dissipation shell is fixedly connected with water pump, the water outlet end of water pump is fixedly connected with connecting pipe, the end of connecting pipe away from water pump is fixedly connected with water tank, the top of water tank is movably connected with cover, the bottom of cover is fixedly connected with a plurality of radiating fins, and the radiating fin movably penetrates and extends to the top of cover, the top of radiating fin is equipped with radiating fan, the inside of water tank is equipped with two limit blocks, the top of two limit blocks is movably connected with filter cotton, the end of water tank away from connecting pipe is fixedly connected with water inlet pipe, the end of water inlet pipe away from water tank is fixedly connected with the surface of heat dissipation shell.

[0006] Further, the inside of water outlet pipe and water inlet pipe is communicated with the inside of cooling cavity, the inside of water outlet pipe and connecting pipe is communicated with the inside of water pump.

[0007] Further, the inside of connecting pipe and water inlet pipe is communicated with the inside of water tank, and the water tank and cooling cavity are equipped with cooling water.

[0008] Compared with the prior art, the utility model discloses the beneficial effect is:

[0009] 1. through starting water pump to the cooling water in cooling box through the outlet pipe and draw, then through the connecting pipe and transport to the water tank, the cooling water of this time can filter through the filter cotton, through the filtration of filter cotton, can reduce the scale formed in the cooling cavity in the long -term circulation of cooling water, thereby reduce the influence to the cooling effect.

[0010] 2. when the cooling water in the water tank is heat dissipation, the cooling water temperature in the water tank is transferred to the cooling fin, and the cooling fan is started to cool the cooling fin, thereby cooling the cooling water in the water tank, and the cooling water after heat dissipation enters the cooling cavity through the water inlet pipe, thereby cooling the double screw extruder body, and further realizing the circulation of cooling water. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 It is the whole structure schematic view of the utility model.

[0012] Fig. 2 It is the water tank structure sectional view of the utility model.

[0013] Fig. 3 It is the whole structure sectional view of the utility model.

[0014] In the drawing: 1, double screw extruder body; 2, heat dissipation shell; 3, outlet pipe; 4, water pump; 5, connecting pipe; 6, water tank; 7, water inlet pipe; 8, cover; 9, cooling fin; 10, cooling fan; 11, filter cotton; 12, cooling cavity. DETAILED DESCRIPTION

[0015] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0016] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like is the orientation or position relationship shown in the drawing, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it can not be understood as a limitation on the utility model. EMBODIMENT

[0017] Referring to the drawingsFigs. 1-3 As shown, a cooling device of a double screw extruder, including a double screw extruder body 1, the double screw extruder body 1 is provided with a heat dissipation shell 2, the inside of the heat dissipation shell 2 is provided with a cooling cavity 12, the surface of the heat dissipation shell 2 is fixedly connected with a water outlet pipe 3, the end of the water outlet pipe 3 away from the heat dissipation shell 2 is fixedly connected with a water pump 4, the water outlet end of the water pump 4 is fixedly connected with a connecting pipe 5, the end of the connecting pipe 5 away from the water pump 4 is fixedly connected with a water tank 6, the top end of the water tank 6 is movably connected with a cover body 8, the bottom end of the cover body 8 is fixedly connected with a plurality of cooling fins 9, and the cooling fins 9 movably penetrate and extend above the cover body 8, the top end of the cooling fin 9 is provided with a cooling fan 10, the inside of the water tank 6 is provided with two limiting blocks, the top end of the two limiting blocks is movably connected with a filter cotton 11, the end of the water tank 6 away from the connecting pipe 5 is fixedly connected with a water inlet pipe 7, and the end of the water inlet pipe 7 away from the water tank 6 is fixedly connected with the surface of the heat dissipation shell 2.

[0018] The inside of the water outlet pipe 3 and the water inlet pipe 7 is in communication with the inside of the cooling cavity 12, and the inside of the water outlet pipe 3 and the connecting pipe 5 is in communication with the inside of the water pump 4.

[0019] The inside of the connecting pipe 5 and the water inlet pipe 7 is in communication with the inside of the water tank 6, and the water tank 6 and the cooling cavity 12 are provided with cooling water.

[0020] Working principle: by starting the water pump 4, the cooling water in the cooling tank is extracted through the water outlet pipe 3, and then delivered to the water tank 6 through the connecting pipe 5, at this time the cooling water is filtered through the filter cotton 11, through the filtration of the filter cotton 11, the formation of scale in the cooling cavity 12 during long-term circulation of the cooling water can be reduced, thereby affecting the cooling effect, when the cooling water in the water tank 6 is cooled, the cooling water temperature in the water tank 6 is transferred to the cooling fin 9, the cooling fin 9 is cooled by starting the cooling fan 10, thereby cooling the cooling water in the water tank 6, the cooled cooling water enters the cooling cavity 12 through the water inlet pipe 7, thereby cooling the double screw extruder body 1, and then realizing the circulation of the cooling water, at the same time, the cover body 8 on the water tank 6 can be disassembled, which is convenient for replacing the filter cotton 11 and cleaning the water tank 6, and is convenient to use.

[0021] The basic principle and main features of the present application and the advantages of the present application are shown and described above, and it is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application; therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application, and any reference signs in the claims should not be considered as limiting the claims.

[0022] In addition, it should be understood that, although the present application is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A cooling device of a twin-screw extruder, comprising a twin-screw extruder body (1) provided with a heat dissipation shell (2), characterized in that: A cooling chamber (12) is provided inside the heat dissipation shell (2), a water outlet pipe (3) is fixedly connected to the surface of the heat dissipation shell (2), an end of the water outlet pipe (3) away from the heat dissipation shell (2) is fixedly connected to a water pump (4), an outlet end of the water pump (4) is fixedly connected to a connecting pipe (5), an end of the connecting pipe (5) away from the water pump (4) is fixedly connected to a water tank (6), a top end of the water tank (6) is movably connected to a cover body (8), a bottom end of the cover body (8) is fixedly connected to a plurality of heat dissipation fins (9), and the heat dissipation fins (9) are movably passed through and extended to the top of the cover body (8), a heat dissipation fan (10) is provided at the top end of the heat dissipation fins (9), two limit blocks are provided inside the water tank (6), the top ends of the two limit blocks are movably connected to filter cotton (11), an end of the water tank (6) away from the connecting pipe (5) is fixedly connected to a water inlet pipe (7), and an end of the water inlet pipe (7) away from the water tank (6) is fixedly connected to the surface of the heat dissipation shell (2).

2. The cooling device of a twin-screw extruder according to claim 1, characterized in that: The interiors of the water outlet pipe (3) and the water inlet pipe (7) are both connected to the interior of the cooling chamber (12), and the interiors of the water outlet pipe (3) and the connecting pipe (5) are both connected to the interior of the water pump (4).

3. The cooling device of a twin-screw extruder according to claim 1, characterized in that: The interiors of the connecting pipe (5) and the water inlet pipe (7) are both connected to the interior of the water tank (6), and cooling water is provided in both the water tank (6) and the cooling chamber (12).

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