A device for heating and melting polyurethane raw materials

Abstract

The utility model relates to the technical field of polyurethane processing, and disclose a kind of for polyurethane raw material heating melting device, including heating cylinder and material placing barrel, the material placing barrel is inserted in the inside of heating cylinder, the middle part of heating cylinder is provided with sleeve, and sleeve bottom is connected with heating cylinder bottom side wall.This utility model heating cylinder and sleeve are in communication state, and heating cylinder is connected with inlet pipe, and sleeve is connected with outlet pipe, and peripheral heating cavity is opened in heating cylinder inner wall, and center heating cavity is formed between sleeve inside and outlet pipe, and peripheral heating cavity and center heating cavity bottom are communicated, and peripheral spiral blade is arranged in peripheral heating cavity, and center spiral blade is arranged in center heating cavity, and the action trajectory of heat source in peripheral heating cavity and center heating cavity is lengthened under the arrangement of peripheral spiral blade and center spiral blade.

Description

Technical Field

[0001] This utility model relates to the field of polyurethane processing technology, specifically to a device for heating and melting polyurethane raw materials. Background Technology

[0002] Polyurethane is a high molecular weight compound produced by the reaction of polyisocyanates and polyols; its full name is polyurethane. It possesses excellent physical and chemical properties, such as high strength, high elasticity, abrasion resistance, oil resistance, low-temperature resistance, and good adhesion, and is therefore widely used in many fields.

[0003] During polyurethane processing, a hot-melt device is required for melting. Existing hot-melt devices typically have a cavity on the outer wall of the heating cylinder, into which an external heating device supplies a heat source, such as hot water or high-temperature gas, to melt the polyurethane raw material through heat conduction. However, in existing heating and melting devices, the heat source only circulates around the periphery of the heating cylinder, and its residence time inside the cylinder is short, resulting in poor melting efficiency and hindering the efficient melting of the polyurethane raw material. Therefore, those skilled in the art have provided a heating and melting device for polyurethane raw materials to solve the problems mentioned in the background art. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a heating and melting device for polyurethane raw materials, which solves the problem that in existing heating and melting devices, the heat source only circulates around the heating cylinder and has a short residence time inside the heating cylinder, resulting in poor melting effect and inefficiency in melting polyurethane raw materials.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a heating and melting device for polyurethane raw materials, comprising a heating cylinder and a material storage tank, wherein the material storage tank is inserted inside the heating cylinder, a sleeve is provided in the middle of the heating cylinder, the bottom of the sleeve is connected to the bottom side wall of the heating cylinder, an outer heating cavity is formed in the outer wall of the heating cylinder, an air inlet pipe is connected to the upper end of the outer wall of the heating cylinder, and an air outlet pipe is connected to the middle of the bottom side of the heating cylinder, the air outlet pipe extends through one end of the heating cylinder into the sleeve, a central heating cavity is formed between the sleeve and the air outlet pipe, a central spiral blade is provided in the central heating cavity, an outer spiral blade is provided in the outer heating cavity, and a central spiral blade is provided in the central heating cavity. With the arrangement of the outer spiral blade and the central spiral blade, the movement trajectory of the heat source in the outer heating cavity and the central heating cavity is lengthened, so that the heat source can be fully utilized, improving the heat exchange effect of the device and avoiding the waste of heat source.

[0008] Preferably, the peripheral heating cavity is in communication with the bottom of the central heating cavity.

[0009] Preferably, the air inlet pipe is in communication with the peripheral heating cavity, and the air inlet pipe is used for input of the heat source; the upper end of the air outlet pipe is inside the upper end of the central heating cavity, and the air outlet pipe is used for output of the heat source.

[0010] Preferably, a handle is installed at the upper end port of the material placing barrel, the material placing barrel is made of heat-conducting material, heat conduction is facilitated, the handle is made of heat-insulating material, the material placing barrel can be pulled out through the handle, the next material placing barrel can be replaced for continuous work, the process of cleaning and waiting after melting of the traditional equipment is avoided, and the production efficiency is improved.

[0011] (Three) beneficial effects

[0012] Compared with the prior art, the polyurethane raw material heating and melting device has the following beneficial effects:

[0013] Through the design, the polyurethane raw material heating and melting device includes a heating cylinder and a material placing barrel, a sleeve is installed at the center of the heating cylinder, the heating cylinder and the sleeve are in a communication state, an air inlet pipe is connected to the heating cylinder, an air outlet pipe is connected in the sleeve, a peripheral heating cavity is formed on the inner wall of the heating cylinder, a central heating cavity is formed between the inside of the sleeve and the air outlet pipe, the peripheral heating cavity is in communication with the bottom of the central heating cavity, peripheral spiral leaves are arranged in the peripheral heating cavity, central spiral leaves are arranged in the central heating cavity, under the arrangement of the peripheral spiral leaves and the central spiral leaves, the movement track of the heat source in the peripheral heating cavity and the central heating cavity is lengthened, the heat source can be fully used, and the melting efficiency of the device is improved through peripheral heating and central heating. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a three-dimensional structure schematic view of a polyurethane raw material heating and melting device provided by the embodiment of the application.

[0015] Figure 2 is a structure schematic view of a material placing barrel in a polyurethane raw material heating and melting device provided by the embodiment of the application.

[0016] Figure 3 is a structure sectional view of a material placing barrel in a polyurethane raw material heating and melting device provided by the embodiment of the application.

[0017] Figure 4 is a structure schematic view of a heating cylinder in a polyurethane raw material heating and melting device provided by the embodiment of the application.

[0018] Figure 5It is a structure sectional view of a heating cylinder of a polyurethane raw material heating and melting device provided by the embodiment of the present application.

[0019] Figure 6 It is a structure sectional view of a peripheral spiral blade and a center spiral blade of a polyurethane raw material heating and melting device provided by the embodiment of the present application.

[0020] In the figure: 1, heating cylinder; 101, peripheral heating cavity; 2, air inlet pipe; 3, air outlet pipe; 4, sleeve; 401, center heating cavity; 5, peripheral spiral blade; 6, center spiral blade; 7, material placing barrel; 8, handle. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0022] The present application provides a technical scheme, a polyurethane raw material heating and melting device, please refer to Figures 1-6 , comprising a heating cylinder 1 and a material placing barrel 7, the material placing barrel 7 is inserted in the inside of the heating cylinder 1, the middle part of the heating cylinder 1 is provided with a sleeve 4, the bottom of the sleeve 4 is connected with the bottom side wall of the heating cylinder 1, the outer wall of the heating cylinder 1 is provided with a peripheral heating cavity 101, the upper end of the outer wall of the heating cylinder 1 is connected with an air inlet pipe 2, the bottom side middle part of the heating cylinder 1 is connected with an air outlet pipe 3, one end of the air outlet pipe 3 extends into the sleeve 4 through the heating cylinder 1, the center heating cavity 401 is formed between the sleeve 4 and the air outlet pipe 3, the center heating cavity 401 is provided with a center spiral blade 6, the peripheral heating cavity 101 is provided with a peripheral spiral blade 5, the center heating cavity 401 is provided with a center spiral blade 6, under the arrangement of the peripheral spiral blade 5 and the center spiral blade 6, the movement track of the heat source in the peripheral heating cavity 101 and the center heating cavity 401 is lengthened, so that the heat source can be fully used, the heat exchange effect of the device is improved, and the waste of the heat source is avoided.

[0023] Please refer to Figures 1-6The bottom of the peripheral heating cavity 101 and the bottom of the central heating cavity 401 are in communication, the air inlet pipe 2 is in communication with the peripheral heating cavity 101, the air inlet pipe 2 is used for input of a heat source, the upper end of the air outlet pipe 3 is inside the upper end of the central heating cavity 401, the air outlet pipe 3 is used for output of the heat source, the upper end of the material placing barrel 7 is provided with the handle 8, the material placing barrel 7 is made of a heat-conducting material, convenient for heat conduction, the handle 8 is made of a heat-insulating material, the material placing barrel 7 can be pulled out through the handle 8, the next material placing barrel 7 is replaced to continue work, and the process of cleaning and waiting after melting of a traditional device is avoided, and the production efficiency is improved.

[0024] The utility model discloses a polyurethane raw material heating and melting device, which comprises a heating cylinder 1 and a material placing barrel 7.

[0025] A peripheral heating cavity 101 is formed in the inner wall of the heating cylinder 1, and a central heating cavity 401 is formed between the inside of the sleeve pipe 4 and the air outlet pipe 3, and the bottom of the peripheral heating cavity 101 and the bottom of the central heating cavity 401 are in communication.

[0026] A peripheral spiral blade 5 is arranged in the peripheral heating cavity 101, and a central spiral blade 6 is arranged in the central heating cavity 401.

[0027] The material placing barrel 7 is arranged in the heating cylinder 1 and can be sleeved with the heating cylinder 1 and the sleeve pipe 4, and is made of a heat-conducting material, which is convenient for heat conduction.

[0028] It is to be noted that, in the present text, the relative terms such as first and second, and the like are used only to distinguish one entity or operation from another entity or operation without necessarily requiring or implying any such actual relationship or order between such entities or operations. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0029] In the present text, unless otherwise explicitly specified and limited, the terms "mounting", "setting", "connecting", "fixing", "screwed", and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited, the specific meaning of the above terms in the present application can be understood by those skilled in the art according to the specific circumstances.

[0030] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A device for heating and melting polyurethane raw materials, comprising a heating cylinder (1) and a material placing barrel (7), the material placing barrel (7) being inserted into the interior of the heating cylinder (1), characterized in that: A sleeve (4) is provided in the middle of the heating cylinder (1). The bottom of the sleeve (4) is connected to the bottom side wall of the heating cylinder (1). An outer heating cavity (101) is provided in the outer wall of the heating cylinder (1). An air inlet pipe (2) is connected to the upper end of the outer wall of the heating cylinder (1). An air outlet pipe (3) is connected to the middle of the bottom side of the heating cylinder (1). The air outlet pipe (3) extends through one end of the heating cylinder (1) into the sleeve (4). A central heating cavity (401) is formed between the sleeve (4) and the air outlet pipe (3). A central spiral blade (6) is provided in the central heating cavity (401). An outer spiral blade (5) is provided in the outer heating cavity (101).

2. The apparatus for heating and melting polyurethane raw materials according to claim 1, characterized in that: The outer heating cavity (101) is connected to the bottom of the central heating cavity (401).

3. The device for heating and melting polyurethane raw materials according to claim 1, characterized in that: The air intake pipe (2) is connected to the outer heating chamber (101).

4. The device for heating and melting polyurethane raw materials according to claim 1, characterized in that: The upper end of the air outlet pipe (3) is located inside the upper end of the central heating chamber (401).

5. The device for heating and melting polyurethane raw materials according to claim 1, characterized in that: A handle (8) is installed at the upper end of the material container (7).

6. The device for heating and melting polyurethane raw materials according to claim 5, characterized in that: The material container (7) is made of heat-conducting material, and the handle (8) is made of heat-insulating material.

Images