CN212819765U

CN212819765U - Raw materials is smashed and is melted device for waterborne polyurethane production

Info

Publication number: CN212819765U
Application number: CN202021381902.1U
Authority: CN
Inventors: 陈丙山; 陈勇
Original assignee: Shandong Huacheng High Tech Adhesive Co ltd
Current assignee: Shandong Huacheng High Tech Adhesive Co ltd
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2021-03-30
Anticipated expiration: 2030-07-15

Abstract

The utility model provides a waterborne polyurethane production is smashed with raw materials and is melted device, add polyester polyol granule in to the barrel through the loading hopper, I rotation drive main shaft of motor rotates, because the high-speed rotation of blade, beat the polyester polyol granule that falls into in the barrel step by step and hit and form powdered material, because the screening of screen cloth, only powdered polyester polyol can be through blanking pipe downstream, it is smashed by pivoted blade once more not have kibbling granule, powdered polyester polyol passes through the feeding device and carries to the filling tube in, thereby it is internal to get into the inner tube, steam passes through the steam intake pipe and gets into the powdered polyester polyol heating of barrel in the spiral heat exchange tube and melt in with, steam after the heat transfer sends into cooling tower through the steam exhaust pipe and cools off into water, can recycle. Powdered polyester polyol heats and becomes liquid, exports through the fluid-discharge tube to get into with the mode of liquid raw materials when making it get into reation kettle production and awaken polyurethane, improved reaction efficiency.

Description

Raw materials is smashed and is melted device for waterborne polyurethane production

Technical Field

The utility model relates to an aqueous polyurethane production technical field, concretely relates to aqueous polyurethane production is smashed with raw materials and is melted device.

Background

When the waterborne polyurethane material is produced, the polyester polyol material in large particles needs to be added into a reaction kettle for reaction, and the polyester polyol particles are dissolved by heating the reaction kettle. But not only the reaction rate is reduced and the production efficiency is influenced, but also the polyester polyol particles can not be fully dissolved and the reaction quality is influenced.

Disclosure of Invention

The utility model discloses a overcome the not enough of above technique, provide a device that directly dissolves polyester polyol granule into liquid.

The utility model overcomes the technical scheme that its technical problem adopted is:

the utility model provides a waterborne polyurethane production is smashed with raw materials and is melted device, includes:

the cutter comprises a barrel, a cutter body and a cutter blade group, wherein a closed containing cavity is formed in the barrel, a main shaft is rotatably arranged in the center of the barrel along the vertical direction through a bearing I, a motor I is arranged at the upper end of the barrel, an output shaft of the motor I is coaxially connected with the main shaft, a plurality of cutter blade groups are axially arranged on the main shaft at intervals, a plurality of cutter blades are circumferentially arranged in each cutter blade group at intervals, and a feeding hopper communicated with the containing cavity in the barrel is arranged at the upper end of;

the screen is arranged at the bottom of the cylinder, the inner diameter of meshes in the screen is smaller than the outer diameter of polyester polyol particles, and a blanking pipe is arranged on the cylinder at the lower end of the screen;

the cooling tower comprises an outer barrel, an inner barrel, a spiral heat exchange pipe, a steam inlet pipe, a steam exhaust pipe, a feeding pipe and a liquid discharge pipe, wherein the outer barrel is arranged at the lower end of the barrel; and

and the material conveying device is used for conveying the powder falling from the blanking pipe into the feeding pipe.

Further, above-mentioned feeding device includes the conveying pipeline that sets up along the horizontal direction, and the conveying pipeline is located between barrel and the outer barrel, installs the screw rod along its axis direction in the conveying pipeline through II rotations of bearing, the left side of the upper end of barrel is connected with the lower extreme of blanking pipe, and the right side of the lower extreme of barrel is connected with the upper end of filling tube, install motor II on the barrel, the output shaft and the screw rod coaxial drive of motor II are connected.

For the convenience of control, the liquid discharge pipe is provided with a valve.

The utility model has the advantages that: add the polyester polyol granule in to the barrel through the loading hopper, I rotation drive main shaft of motor rotates, because the high-speed rotation of blade, beat the polyester polyol granule that falls into in the barrel step by step and hit and form powdered material, because the screening of screen cloth, only powdered polyester polyol can be through blanking pipe downstream, it is smashed by pivoted blade once more not have kibbling granule, powdered polyester polyol passes through conveyor and carries to the filling tube in, thereby it is internal to get into the inner tube, steam passes through the steam intake pipe and melts the powdered polyester polyol heating in the barrel in will in getting into the spiral heat exchange tube, steam after the heat transfer sends to cooling tower through steam exhaust pipe and cools off into water, can recycle. Powdered polyester polyol heats and becomes liquid, exports through the fluid-discharge tube to get into with the mode of liquid raw materials when making it get into reation kettle production and awaken polyurethane, improved reaction efficiency.

Drawings

Fig. 1 is a schematic structural view of the present invention;

in the figure, 1, a cylinder body 2, a bearing I3, a main shaft 4, a screen 5, a blade 6, a motor I7, a feeding hopper 8, a feeding pipe 9, a blanking pipe 10, a screw rod 11, a bearing II 12, a motor II 13, a feeding pipe 14, an outer cylinder body 15, an inner cylinder body 16, a spiral heat exchange pipe 17, a steam inlet pipe 18, a steam exhaust pipe 19, a liquid discharge pipe 20 and a valve.

Detailed Description

The present invention will be further explained with reference to fig. 1.

The utility model provides a waterborne polyurethane production is smashed with raw materials and is melted device, includes: the cutter comprises a barrel 1, a closed containing cavity is formed in the barrel 1, a main shaft 3 is rotatably installed in the center of the barrel 1 along the vertical direction through a bearing I2, a motor I6 is installed at the upper end of the barrel 1, an output shaft of the motor I6 is coaxially connected with the main shaft 3, a plurality of blade groups are axially arranged on the main shaft 3 at intervals, a plurality of blades 5 are circumferentially arranged in each blade group at intervals, and a charging hopper 7 communicated with the containing cavity in the barrel 1 is arranged at the upper end of the barrel 1; the screen 4 is arranged at the bottom of the barrel 1, the inner diameter of meshes in the screen 4 is smaller than the outer diameter of polyester polyol particles, and a blanking pipe 9 is arranged on the barrel 1 at the lower end of the screen 4; the cooling tower comprises an outer barrel 14 arranged at the lower end of the barrel 1, an inner barrel 15 is concentrically arranged in the outer barrel 14, a closed cavity is formed in the inner barrel 15, a spiral heat exchange pipe 16 is arranged in an interlayer between the outer barrel 14 and the inner barrel 15, one end of the spiral heat exchange pipe 16 is connected with a steam pipeline through a steam inlet pipe 17, the other end of the spiral heat exchange pipe is connected with the inlet end of the cooling tower through a steam exhaust pipe 18, a feeding pipe 13 communicated with the cavity inside the inner barrel 15 is arranged at the upper end of the inner barrel 15, and a liquid discharge pipe 19 communicated with the cavity inside the; and a material conveying device for conveying the powder falling from the blanking pipe 9 to the feeding pipe 13. During production, add polyester polyol granule in to barrel 1 through loading hopper 7, motor I6 rotates drive main shaft 3 and rotates, because the high-speed rotation of blade 5, beat the polyester polyol granule that falls into in barrel 1 step by step and hit and form powdered material, because the screening of screen cloth 4, only powdered polyester polyol can be through blanking pipe 8 downstream, the granule that does not smash is smashed by pivoted blade 5 again, powdered polyester polyol passes through the feeding device and carries to the filling tube 13 in, thereby in getting into interior barrel 15, steam passes through steam intake pipe 17 and melts the powdered polyester polyol heating in barrel 15 in getting into spiral heat exchange tube 16, steam after the heat transfer sends to the cooling tower through steam exhaust pipe 18 and cools into water, can recycle. Powdered polyester polyol heats and becomes liquid, exports through fluid-discharge tube 19 to get into with the mode of liquid raw materials when making it get into reation kettle production and awaken polyurethane, improved reaction efficiency.

The conveying device can be of a structure as follows, the conveying device comprises a conveying pipe 8 arranged along the horizontal direction, the conveying pipe 8 is located between the barrel body 1 and the outer barrel body 14, a screw rod 10 is rotatably installed in the conveying pipe 8 along the axis direction of the conveying pipe through a bearing II 11, the left side of the upper end of the barrel body 1 is connected with the lower end of the blanking pipe 9, the right side of the lower end of the barrel body 1 is connected with the upper end of a feeding pipe 13, a motor II 12 is installed on the barrel body 1, and the output shaft of the motor II 12 is in coaxial transmission connection with the. The motor II 12 rotates to drive the screw 10 to rotate, and when the screw 10 rotates in the cylindrical space of the material conveying pipe 8, the powder conveyed from the blanking pipe 9 is conveyed to the feeding pipe 13 from the right side end and falls into the feeding pipe 13 under the action of gravity.

Further, a valve 20 is provided on the drain pipe 19. After the valve 20 is closed, the powder in the inner cylinder 15 can be ensured to be fully changed into liquid after being subjected to heat exchange with the spiral heat exchange tube 16, and after the polyester polyol is changed into liquid, the liquid can be discharged by opening the valve 20.

Claims

1. The utility model provides a waterborne polyurethane production is smashed with raw materials and is melted device which characterized in that includes:

the cutter comprises a barrel (1), a closed containing cavity is formed in the barrel (1), a main shaft (3) is rotatably installed in the barrel (1) at the center position through a bearing I (2) along the vertical direction, a motor I (6) is installed at the upper end of the barrel (1), an output shaft of the motor I (6) is coaxially connected with the main shaft (3), a plurality of blade groups are axially arranged on the main shaft (3) at intervals, a plurality of blades (5) are arranged in each blade group at intervals along the circumferential direction, and a feeding hopper (7) communicated with the containing cavity is arranged at the upper end of the barrel (1);

the screen (4) is arranged at the bottom of the barrel (1), the inner diameter of meshes in the screen (4) is smaller than the outer diameter of polyester polyol particles, and a blanking pipe (9) is arranged on the barrel (1) at the lower end of the screen (4);

the cooling tower comprises an outer barrel (14) arranged at the lower end of the barrel (1), an inner barrel (15) is concentrically arranged in the outer barrel (14), a closed containing cavity is formed in the inner barrel (15), a spiral heat exchange pipe (16) is arranged in an interlayer between the outer barrel (14) and the inner barrel (15), one end of the spiral heat exchange pipe (16) is connected with a steam pipeline through a steam inlet pipe (17), the other end of the spiral heat exchange pipe is connected with the inlet end of the cooling tower through a steam exhaust pipe (18), a feeding pipe (13) communicated with the containing cavity in the inner barrel is arranged at the upper end of the inner barrel (15), and a liquid discharge pipe (19) communicated with the containing cavity in the inner barrel is arranged; and

the material conveying device is used for conveying the powder falling from the blanking pipe (9) to the feeding pipe (13).

2. The raw material crushing and melting device for producing the waterborne polyurethane according to claim 1, characterized in that: the feeding device comprises a feeding pipe (8) arranged along the horizontal direction, the feeding pipe (8) is located between a barrel body (1) and an outer barrel body (14), a screw rod (10) is installed in the feeding pipe (8) in a rotating mode through a bearing II (11) along the axis direction of the feeding pipe, the left side of the upper end of the barrel body (1) is connected with the lower end of a blanking pipe (9), the right side of the lower end of the barrel body (1) is connected with the upper end of a feeding pipe (13), a motor II (12) is installed on the barrel body (1), and the output shaft of the motor II (12) is connected with the screw rod (10) in a coaxial transmission mode.

3. The raw material crushing and melting device for producing the waterborne polyurethane according to claim 1, characterized in that: and a valve (20) is arranged on the liquid discharge pipe (19).