Polyurethane particle melting and spraying device

Abstract

The utility model discloses a polyurethane particle melting and spraying device, which relates to the technical field of polyurethane particles and particularly comprises a support frame, an extension part is arranged in the middle of the surface of one side of the support frame, a through groove is formed in the upper surface of the extension part, an adjusting shaft sleeve is movably clamped in the through groove in the surface of the extension part, and a spring is fixedly mounted on the inner cambered surface of the adjusting shaft sleeve. An air injection thin pipe is connected to the inner arc face of the adjusting shaft sleeve in a penetrating mode, one end of the air injection thin pipe is connected to the top of the supporting frame in a penetrating mode, a flange support is arranged on the outer arc face of the air injection thin pipe, when the air injection thin pipe is lifted, a spring is compressed, and high-pressure steam is driven by high-pressure air to fill a gap formed in a lower nozzle in time. When the air injection thin pipe rapidly falls down, particles in the nozzle mounting hole are impacted, so that the polyurethane particles are ejected out of the nozzle, high-speed saturated steam injection is adopted, then the polyurethane particles are fused in a tornado flowing state to be subjected to injection granulation, and the quality polyurethane particles can be conveniently detected.

Description

Technical Field

[0001] The utility model relates to the technical field of polyurethane particles, in particular to a polyurethane particle melting and spraying device. Background Art

[0002] The polyurethane granule melt jetting device is an industrial equipment used to produce polyurethane granules. It is suitable for melting low-melting-point materials and dispersing them into tiny droplets through high-speed airflow. These droplets are rapidly cooled and solidified after contacting cold air to form particles with a certain size and shape. This technology is usually used to produce granular products of materials such as plastics, rubber, and fertilizers.

[0003] Pouring the existing molten particles directly into a water pool will result in a large loss of recyclable heat, resulting in a waste of heat resources. Some equipment used for high-temperature molten particle jet granulation has an incomplete degree of polyurethane granulation in the jet granulation structure. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a polyurethane particle melt jetting device to solve the problem of incomplete granulation of some polyurethanes in the jet granulation structure of high-temperature melt particle jet granulation equipment.

[0005] To achieve the above purpose, the utility model is implemented through the following technical scheme: a polyurethane particle melt injection device comprises a support frame, an extension portion is provided in the middle of one side surface of the support frame, a through groove is opened on the upper surface of the extension portion, an adjusting sleeve is movably clamped in the through groove on the surface of the extension portion, a spring is fixedly installed on the inner arc surface of the adjusting sleeve, a jet capillary is penetrated and connected on the inner arc surface of the adjusting sleeve, one end of the jet capillary is penetrated and connected to the top of the support frame, a flange bracket is provided on the outer arc surface of the jet capillary, one end of the spring away from the adjusting sleeve is fixedly installed on the flange bracket, a valve body is movably overlapped on the lower surface of the flange bracket, an end cover is fixedly installed on the lower surface of the valve body, support portions are provided on both sides of the end cover, one side of the support portion is fixedly installed on one side of the support frame by bolts, when the jet capillary is lifted, the spring is compressed, and the high-pressure steam will fill the gap caused in the lower nozzle in time under the drive of the high-pressure air. When the jet tube falls rapidly, it will hit the particles in the nozzle installation hole, causing the polyurethane particles to be ejected from the nozzle. The high-speed saturated steam jet is then used to melt the polyurethane particles and then granulate them in a tornado flow state, which is convenient for detecting the quality of the polyurethane particles.

[0006] Optionally, a sleeve is provided in the middle of the lower surface of the end cover, a nozzle is provided on the inner arc surface of the sleeve, a nozzle mounting hole is opened on the upper surface of the nozzle, and an annular groove is provided on the outer arc surface of the nozzle mounting hole.

[0007] Optionally, the nozzle mounting hole is a rubber elastic structure, and the outer arc surface of the annular groove is movably connected to the sleeve.

[0008] Optionally, a joint is connected through the middle of the outer arc surface of the sleeve, a heat absorption tube is connected through the inner arc surface of the joint, and a cylindrical filter cartridge is connected through the end of the heat absorption tube away from the joint.

[0009] Optionally, an access kit is connected through the inner arc surface of the sleeve, a flow guide shell is fixedly installed on the lower surface of the access kit, and mounting ears are provided on both sides of the outer arc surface of the flow guide shell.

[0010] Optionally, the inner top of the air guide shell is movably connected to a heat dissipation sleeve via a rotating shaft, and the outer arc surface of the heat dissipation sleeve is provided with a diversion grid hole.

[0011] Optionally, there are several diversion grid holes, which are evenly distributed on the surface of the heat dissipation sleeve in the form of a ring array. The heat dissipation sleeve rotates inside the flow-through shell, so that the flow velocity of the fluid flowing therethrough is gradually reduced, thereby controlling the temperature of the fluid within a lower range, which is beneficial to cooling the melting of the polyurethane particles.

[0012] The utility model provides a polyurethane particle melt injection device, which has the following beneficial effects:

[0013] 1. When the jet capillary is lifted, the spring is compressed, and the high-pressure steam driven by the high-pressure air will promptly fill the gap in the lower nozzle. When the jet capillary falls rapidly, it will hit the particles in the nozzle installation hole, thereby causing the polyurethane particles to be ejected from the nozzle. The high-speed saturated steam jet is then used to jet and granulate the polyurethane particles in a tornado flow state, which is convenient for testing the quality of polyurethane particles.

[0014] 2. The heat dissipation sleeve inside the passage of the flow guide shell rotates, so that the flow velocity of the fluid flowing therethrough is gradually reduced, so that the temperature of the fluid is controlled within a lower range, and at the same time it is beneficial to cool the melting of the polyurethane particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0016] Figure 1 This is a schematic diagram of the overall structure of a polyurethane particle melt injection device of the utility model;

[0017] Figure 2 This is a schematic cross-sectional structure diagram of a polyurethane particle melt injection device of the utility model;

[0018] Figure 3 This is a partial structural schematic diagram of a polyurethane particle melt injection device of the utility model;

[0019] Figure 4 The utility model is a schematic diagram of the structure of a heat dissipation component of a polyurethane particle melt injection device.

[0020] In the figure: 1, support frame; 101, extension part; 2, adjustment sleeve; 3, spring; 4, jet cap; 5, flange bracket; 6, valve body; 7, end cover; 701, support part; 702, sleeve; 8, nozzle; 801, annular groove; 802, nozzle mounting hole; 9, joint; 10, heat absorption tube; 11, cylindrical filter cartridge; 12, access kit; 13, guide shell; 14, mounting ear; 15, heat dissipation sleeve; 16, diverter grid hole. DETAILED DESCRIPTION

[0021] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment in size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0022] See also Figures 1 to 3 The utility model provides a technical solution: a polyurethane particle melt injection device, comprising a support frame 1, an extension portion 101 is provided in the middle of one side surface of the support frame 1, a through groove is opened on the upper surface of the extension portion 101, an adjusting sleeve 2 is movably clamped in the through groove on the surface of the extension portion 101, a spring 3 is fixedly installed on the inner arc surface of the adjusting sleeve 2, an air jet tube 4 is penetrated and connected to the inner arc surface of the adjusting sleeve 2, one end of the air jet tube 4 is penetrated and connected to the top of the support frame 1, a flange bracket 5 is provided on the outer arc surface of the air jet tube 4, one end of the spring 3 away from the adjusting sleeve 2 is fixedly installed on the flange bracket 5, a valve body 6 is movably overlapped on the lower surface of the flange bracket 5, an end cover 7 is fixedly installed on the lower surface of the valve body 6, support portions 701 are provided on both sides of the end cover 7, and one side of the support portion 701 is fixedly installed on one side of the support frame 1 by bolts.

[0023] When the jet capillary 4 is lifted, the spring 3 is compressed, and the high-pressure steam driven by the high-pressure air will promptly fill the gap in the lower nozzle 8. When the jet capillary 4 falls rapidly, it will hit the particles in the nozzle mounting hole 802, thereby causing the polyurethane particles to be ejected from the nozzle 8, thereby using high-speed saturated steam jet and then jetting the polyurethane particles in a tornado flow state to granulate the melted polyurethane particles, which is convenient for testing the quality of the polyurethane particles.

[0024] A sleeve 702 is provided in the middle of the lower surface of the end cover 7, a nozzle 8 is provided on the inner arc surface of the sleeve 702, a nozzle mounting hole 802 is provided on the upper surface of the nozzle 8, an annular groove 801 is provided on the outer arc surface of the nozzle mounting hole 802, the nozzle mounting hole 802 is a rubber elastic structure, the outer arc surface of the annular groove 801 is movably connected with the sleeve 702, a joint 9 is penetrated and connected in the middle of the outer arc surface of the sleeve 702, a heat absorbing pipe 10 is penetrated and connected on the inner arc surface of the joint 9, and the heat absorbing pipe 10 is away from the joint 9. A cylindrical filter cartridge 11 is penetrated and connected at one end, an access kit 12 is penetrated and connected at the inner arc surface of the sleeve 702, a flow guide shell 13 is fixedly installed on the lower surface of the access kit 12, mounting ears 14 are provided on both sides of the outer arc surface of the flow guide shell 13, a heat dissipation sleeve 15 is movably connected to the inner top of the flow guide shell 13 through a rotating shaft, a diversion grid hole 16 is provided on the outer arc surface of the heat dissipation sleeve 15, and the number of the diversion grid holes 16 is several and is evenly distributed on the surface of the heat dissipation sleeve 15 in the form of a ring array.

[0025] The heat dissipation sleeve 15 rotates inside the channel of the flow guide housing 13, so that the flow velocity of the fluid flowing therethrough is gradually reduced, thereby controlling the temperature of the fluid within a lower range, and at the same time, it is beneficial to cool the melting of the polyurethane particles.

[0026] In the utility model, the working steps of the device are as follows:

[0027] First, one end of the support frame 1 is connected to the port of the device that outputs high-speed saturated steam. When the polyurethane particles melt and fall into the jet capillary 4 and slide to the inner bottom, they enter the jet capillary 4 through high-pressure steam. Under the impact of high-speed saturated steam, the corresponding polyurethane is converted into corresponding particles. At the same time, the high-temperature heat of the polyurethane is absorbed by the high-speed saturated steam. When the jet capillary 4 is lifted, the spring 3 is compressed, and the high-pressure steam will timely fill the gap created in the lower nozzle 8 under the drive of high-pressure air. When the jet capillary 4 falls rapidly, it will hit the particles in the nozzle mounting hole 802, thereby prompting the polyurethane particles to be ejected from the nozzle 8, so that the high-speed saturated steam is used to spray and granulate the melted polyurethane particles in a tornado flow state, which is convenient for detecting the quality of the polyurethane particles. At the same time, the heat dissipation sleeve 15 in the flow-through of the guide shell 13 rotates, so that the flow velocity of the fluid flowing therethrough decreases, so that the temperature of the fluid is controlled in a lower range, and it is also beneficial to cool down the melted polyurethane particles.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polyurethane particle melt spraying device, comprising a support frame (1), characterized in that: An extension portion (101) is provided in the middle of a side surface of the support frame (1), a through groove is provided on the upper surface of the extension portion (101), an adjustment sleeve (2) is movably engaged in the through groove on the surface of the extension portion (101), a spring (3) is fixedly mounted on the inner arc surface of the adjustment sleeve (2), a jet capillary (4) is penetrated and connected to the inner arc surface of the adjustment sleeve (2), one end of the jet capillary (4) is penetrated and connected to the top of the support frame (1), a flange bracket (5) is provided on the outer arc surface of the jet capillary (4), one end of the spring (3) away from the adjustment sleeve (2) is fixedly mounted on the flange bracket (5), a valve body (6) is movably overlapped on the lower surface of the flange bracket (5), an end cover (7) is fixedly mounted on the lower surface of the valve body (6), support portions (701) are provided on both sides of the end cover (7), and one side of the support portion (701) is fixedly mounted on one side of the support frame (1) by means of bolts.

2. A polyurethane particle melt-jet device according to claim 1, characterized in that: A sleeve (702) is provided in the middle of the lower surface of the end cover (7); a nozzle (8) is provided on the inner arc surface of the sleeve (702); a nozzle mounting hole (802) is provided on the upper surface of the nozzle (8); and an annular groove (801) is provided on the outer arc surface of the nozzle mounting hole (802).

3. A polyurethane particle melt-jet device according to claim 2, characterized in that: The nozzle mounting hole (802) is a rubber elastic structure, and the outer arc surface of the annular groove (801) is movably sleeved with the sleeve (702).

4. A polyurethane particle melt-jet device according to claim 3, characterized in that: A joint (9) is connected through the middle of the outer arc surface of the sleeve (702), a heat absorption tube (10) is connected through the inner arc surface of the joint (9), and a cylindrical filter cartridge (11) is connected through the end of the heat absorption tube (10) away from the joint (9).

5. A polyurethane particle melt-jet device according to claim 4, characterized in that: The inner arc surface of the sleeve (702) is penetrated and connected with an access kit (12), the lower surface of the access kit (12) is fixedly mounted with a flow guide housing (13), and both sides of the outer arc surface of the flow guide housing (13) are provided with mounting ears (14).

6. A polyurethane particle melt-jet device according to claim 5, characterized in that: The inner top of the flow guide housing (13) is movably connected to a heat dissipation sleeve (15) via a rotating shaft, and the outer arc surface of the heat dissipation sleeve (15) is provided with a diversion grid hole (16).

7. A polyurethane particle melt-jet device according to claim 6, characterized in that: The number of the diversion grid holes (16) is several and they are evenly distributed on the surface of the heat dissipation sleeve (15) in the form of a ring array.

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