A high-speed stirring head and intelligent high-speed mixing device used in polyurethane sponge production

Abstract

The present invention relates to the field of mixing, and more specifically to a high-speed stirring head and an intelligent high-speed mixing device used in the production of polyurethane sponges, wherein the stirring head comprises a rotating shaft, stirring blades, an opening, an ejector tube, an L-shaped channel, an L-shaped tube and a one-way valve, a plurality of stirring blades are evenly distributed on the circumference of the lower end of the rotating shaft, each of the stirring blades is penetrated with an opening, each of the stirring blades is fixedly connected with an ejector tube connected with the opening, a plurality of L-shaped channels are arranged on the rotating shaft, the inlet end of the L-shaped channel is located on the upper end surface of the rotating shaft, the outlet end of the L-shaped channel is located at the lower part of the rotating shaft, the outlet end of each of the L-shaped channels is connected with an L-shaped tube, the outlet end of each of the L-shaped tubes is arranged in the ejector tube, and the outlet end of the L-shaped tube is provided with a one-way valve; the problems of agglomeration and unevenness can be solved during high-speed stirring.

Description

Technical Field

[0001] The invention relates to the field of mixing, and more specifically to a high-speed stirring head and an intelligent high-speed mixing device used in the production of polyurethane sponges. Background Art

[0002] In the process of polyurethane sponge production, the production materials need to be stirred to keep them uniform. When the traditional high-speed stirring device is stirring, due to the material and production process problems of polyurethane sponge production, unevenness and agglomeration will occur during the stirring process, which will seriously affect the quality of the finished sponge.

[0003] The above problems have become issues that need to be solved urgently. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a high-speed stirring head and an intelligent high-speed mixing device applied to the production of polyurethane sponge, which can solve the problems of agglomeration and unevenness during high-speed stirring.

[0005] In order to solve the above technical problems, according to one aspect of the present invention, a stirring head is provided, including a rotating shaft, stirring blades, an opening, an ejector tube, an L-shaped channel, an L-shaped tube and a one-way valve, wherein a plurality of stirring blades are evenly distributed on the circumference of the lower end of the rotating shaft, each of the stirring blades is penetrated by an opening, and each of the stirring blades is fixedly connected to an ejector tube connected to the opening, and the rotating shaft is provided with several L-shaped channels, the inlet end of the L-shaped channel is located on the upper end surface of the rotating shaft, and the outlet end of the L-shaped channel is located at the lower part of the rotating shaft, and the outlet end of each of the L-shaped channels is connected to an L-shaped tube, and the outlet end of each of the L-shaped tubes is arranged in the ejector tube, and a one-way valve is arranged in the outlet end of the L-shaped tube.

[0006] Furthermore, the stirring head also includes: a blade seat, and a plurality of the blade seats are connected between the outer wall of the L-shaped tube and the inner wall of the ejector tube in a circumferentially uniform manner.

[0007] Furthermore, the blade with the blade seat faces the opening side of the corresponding position.

[0008] Furthermore, the opening position is provided with rounded corners.

[0009] According to another aspect of the present invention, there is provided an intelligent high-speed mixing device for use in the production of polyurethane sponge, the mixing device further comprising: an outer shell, a seat motor, a first pulley, a second pulley, a feed channel, a pressure box, a high-pressure gas inlet and a stirring discharge port, the rotating shaft is rotatably connected to the outer shell, a seat motor is provided on the upper end surface of the outer shell, a first pulley is connected to the upper end of the output shaft of the seat motor, the first pulley is transmission-connected to the second pulley connected to the upper part of the rotating shaft, the feed channel is arranged on the upper end surface of the outer shell, the pressure box is arranged on the upper end surface of the outer shell, a high-pressure gas inlet for an external gas press is provided on one side of the pressure box, and the stirring discharge port is arranged on the lower end surface of the outer shell.

[0010] Furthermore, the mixing device also includes: an inner piston, a spring, a step rod, a distance sensor, an alarm and a pressure reducing pipe. The inner piston is slidably connected in the pressure box. A step rod is fixedly connected to the upper end surface of the inner piston. The step rod can slide through the top wall of the pressure box. A spring is sleeved on the step rod. Both ends of the spring respectively abut against the upper end surface of the inner piston and the inner wall of the top wall of the pressure box. A distance sensor is provided directly above the step rod, and an alarm is provided above the distance sensor. The pressure reducing pipe is connected to the pressure box.

[0011] Furthermore, when the spring is in a released state, the lower edge height of the inner piston is higher than the highest point of the high-pressure gas inlet, and the upper edge height of the inner piston is higher than the highest point of the pressure reducing pipe. When the spring is compressed upward to the extreme position, the inlet end of the L-shaped channel is connected to the pressure reducing pipe.

[0012] Furthermore, the high-speed mixing device also includes a buffer box, an injection port and a bent pipe. The buffer box is connected to the pressure box. The injection port is provided on the side of the buffer box close to the pressure reducing pipe. The outlet end of the pressure reducing pipe extends into the buffer box through the injection port. The outlet end of the buffer box is connected to the inlet end of the bent pipe, and the outlet end of the bent pipe faces the rotating shaft.

[0013] Furthermore, the diameter of the injection port is 1.15 times the diameter of the pressure reducing tube.

[0014] In summary, using the above device,

[0015] By introducing gas into the stirring method, the collision between fluids and between the stirring head and the fluid can be enhanced in combination with the rotation process, and the flow rate of the fluid can be accelerated, which can improve the stirring effect and reduce the agglomeration rate;

[0016] The agglomeration rate can be further reduced by setting a blade at the injection point;

[0017] Ability to monitor whether the device is operating normally through changes in pressure;

[0018] It can release the excess pressure and then quickly cool down the shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The figure is a schematic diagram of the overall structure of a stirring head of the present invention.

[0020] Figure 2 For the present invention Figure 1 Schematic diagram of the partial enlarged structure of part A.

[0021] Figure 3 This is a first cross-sectional structural schematic diagram of a stirring head of the present invention.

[0022] Figure 4 This is a second cross-sectional structural schematic diagram of a stirring head of the present invention.

[0023] Figure 5 This is a first structural schematic diagram of a natural gas combustion test energy recovery device according to the present invention.

[0024] Figure 6 This is a second structural schematic diagram of an intelligent high-speed mixing device used in the production of polyurethane sponge according to the present invention.

[0025] Figure 7 This is a first cross-sectional structural schematic diagram of an intelligent high-speed mixing device used in the production of polyurethane sponge according to the present invention.

[0026] Figure 8 for Figure 7 Schematic diagram of the partial enlarged structure of part B.

[0027] Fig. 9 This is a second cross-sectional structural schematic diagram of an intelligent high-speed mixing device used in the production of polyurethane sponge according to the present invention.

[0028] Fig.10 for Fig. 9 Schematic diagram of the local enlarged structure of part C. DETAILED DESCRIPTION

[0029] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0030] As shown in the accompanying drawings, according to one aspect of the present invention, a high-speed stirring head is provided, comprising a rotating shaft 1, stirring blades 2, an opening 3, an ejector tube 4, an L-shaped channel 5, an L-shaped tube 6 and a one-way valve 7. A plurality of stirring blades 2 are evenly distributed on the circumference of the lower end of the rotating shaft 1, each of the stirring blades 2 is penetrated by an opening 3, and each of the stirring blades 2 is fixedly connected with an ejector tube 4 connected with the opening 3. A plurality of L-shaped channels 5 are provided on the rotating shaft 1, and the inlet end of the L-shaped channel 5 is located on the upper end surface of the rotating shaft 1, and the outlet end of the L-shaped channel 5 is located at the lower part of the rotating shaft 1. The outlet end of each of the L-shaped channels 5 is connected with an L-shaped tube 6, and the outlet end of each of the L-shaped tubes 6 is arranged in the ejector tube 4. A one-way valve 7 is provided in the outlet end of the L-shaped tube 6, and the ejector tube 4 can be.

[0031] In this embodiment, the stirring head also includes: a blade seat 8, several of the blade seats 8 are connected between the outer wall of the L-shaped tube 6 and the inner wall of the ejector tube 4 in a circumferentially uniform manner, the blade of the blade seat 8 faces the side of the opening 3 at the corresponding position, and the opening 3 is provided with a rounded corner to reduce fluid resistance. The fluid enters against the blade of the blade seat 8 and is superimposed by the ejection effect, which increases the impact force. The blade will break up the lumps, thereby obtaining better uniformity and reducing the lumping rate. The diameter of the ejector tube 4 is larger than the diameter of the L-shaped tube 6, and the blade seat 8 has a blade facing the liquid surface, which can break up the lumps.

[0032] According to another aspect of the present invention, there is provided an intelligent high-speed mixing device for use in the production of polyurethane sponge, the device further comprising: a housing 9, a seat motor 10, a first pulley 11, a second pulley 12, a feed channel 13, a pressure box 14, a high-pressure gas inlet 15 and a stirring outlet 25, the rotating shaft 1 is rotatably connected to the housing 9, a seat motor 10 is provided on the upper end surface of the housing 9, a first pulley 11 is connected to the upper end of the output shaft of the seat motor 10, the first pulley 11 is transmission-connected to the second pulley 12 connected to the upper part of the rotating shaft 1, the feed channel 13 is arranged on the upper end surface of the housing 9, the pressure box 14 is arranged on the upper end surface of the housing 9, a high-pressure gas inlet 15 for an external gas press is provided on one side of the pressure box 14, and the stirring outlet 25 is arranged on the lower end surface of the housing 9.

[0033] In this embodiment, the mixing device also includes: an inner piston 16, a spring 17, a step rod 18, a distance sensor 19, an alarm 20 and a pressure reducing pipe 21. The inner piston 16 is slidably connected in the pressure box 14. The upper end surface of the inner piston 16 is fixedly connected with the step rod 18, and the step rod 18 can slide through the top wall of the pressure box 14. The step rod 18 is sleeved with a spring 17, and the two ends of the spring 17 are respectively against the upper end surface of the inner piston 16 and the inner wall of the top wall of the pressure box 14. A distance sensor 19 is provided directly above the step rod 18, and an alarm 20 is provided above the distance sensor 19. The pressure reducing pipe 21 is connected to the pressure box 14.

[0034] In this embodiment, when the spring 17 is in a released state, the lower edge height of the inner piston 16 is higher than the highest point of the high-pressure gas inlet 15, and the upper edge height of the inner piston 16 is higher than the highest point of the pressure reducing pipe 21. When the spring 17 is compressed upward to the limit position, the inlet end of the L-shaped channel 5 is connected to the pressure reducing pipe 21.

[0035] In this embodiment, the high-speed mixing device also includes a buffer box 22, an injection port 23 and a bent pipe 24. The buffer box 22 is connected to the pressure box 14. The injection port 23 is provided on the side of the buffer box 22 close to the pressure reducing pipe 21. The outlet end of the pressure reducing pipe 21 extends into the buffer box 22 through the injection port 23. The outlet end of the buffer box 22 is connected to the inlet end of the bent pipe 24. The outlet end of the bent pipe 24 faces the rotating shaft 1. When the high-pressure gas ejected from the pressure reducing pipe 21 enters the buffer box 22, it will form an injection effect on the outside air at the injection port 23, thereby quickly introducing the outside air and quickly mixing it with the high-pressure gas. After taking away the heat, it will continue to cool down through the bent pipe 24 and then blow toward the rotating shaft, which can cool the rotating shaft, thereby improving the stability of the device operation.

[0036] In this embodiment, the diameter of the injection port 23 is 1.15 times the diameter of the pressure reducing tube 21, which can increase the injection pressure.

[0037] When in use, the raw materials are added into the shell 9 from the feeding channel 13, and then the seat motor 10 is turned to drive the first pulley 11 to rotate. The rotation of the first pulley 11 will drive the second pulley 12 to rotate through the transmission, and the second pulley 12 will drive the rotating shaft 1 to rotate. The rotation of the rotating shaft 1 will drive the stirring blade 2 to rotate. The side of the opening 3 on the stirring blade 2 is the frontal surface, and the side of the ejector pipe 4 is the back flow area. With the high-speed rotation, the stirring blade 2 will stir the fluid at a high speed. At the same time, the fluid will enter the ejector pipe from the opening 3. Then it flows out of the ejection tube 4, and inputs high-pressure gas into the pressure box 14 through the gas compressor connected to the high-pressure gas inlet 15. The initial deformation force of the spring 17 is set to be greater than the threshold of the one-way valve 7 and the fluid resistance in the shell 9, so that the pressure will break the one-way valve 7 and spray into the ejection tube 4. In this way, the high-pressure gas will form a back pressure attraction on the opening 3, thereby increasing the fluid power of the liquid moving from the side of the opening 3 to the ejection tube 4, so that the fluid passes quickly against the blade with the blade seat 8, reducing the blockage rate and the agglomeration rate;

[0038] When the one-way valve 7 is blocked and cannot be opened well, or the pressure in the L-shaped channel 5 increases due to the abnormal temperature rise caused by the rotation of the shaft, the initial deformation force of the spring 17 cannot suppress the upward movement trend of the inner piston 16. The inner piston 16 will move upward and drive the step rod 18 to move upward. At this time, when the distance sensor 19 detects the upward movement of the step rod 18, a controller is also provided on the device. The controller collects the signal of the distance sensor 19 and controls the alarm 20 to sound an alarm, thereby reminding the operator that the machine should be shut down for maintenance. When the spring 17 is compressed upward to the limit position, the inlet end of the L-shaped channel 5 is connected to the pressure reducing pipe 21, and the high-pressure gas will overflow from the pressure reducing pipe 21 to prevent danger caused by excessive pressure. When the high-pressure gas ejected from the pressure reducing pipe 21 enters the buffer box 22, it will form an ejection effect on the outside air at the ejection port 23, thereby quickly introducing the outside air and quickly mixing it with the high-pressure gas. After taking away the heat, it continues to cool down through the bend pipe 24 and blows to the shaft, which can cool the shaft, thereby improving the stability of the device operation.

[0039] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the examples described. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention also fall within the protection scope of the present invention.

Claims

1. A high-speed mixing device for polyurethane sponge production, Features: The invention comprises a rotating shaft (1), a stirring blade (2), an opening (3), an ejector tube (4), an L-shaped channel (5), an L-shaped tube (6) and a one-way valve (7), wherein a plurality of stirring blades (2) are evenly distributed on the circumference of the lower end of the rotating shaft (1), each stirring blade (2) is provided with an opening (3) extending therethrough, each stirring blade (2) is fixedly connected with an ejector tube (4) communicating with the opening (3), a plurality of L-shaped channels (5) are provided on the rotating shaft (1), an inlet end of the L-shaped channel (5) is located on the upper end surface of the rotating shaft (1), an outlet end of the L-shaped channel (5) is located at the lower part of the rotating shaft (1), the outlet end of each L-shaped channel (5) is connected with an L-shaped tube (6), the outlet end of each L-shaped tube (6) is provided in the ejector tube (4), and a one-way valve (7) is provided in the outlet end of the L-shaped tube (6); It also includes: a blade seat (8), wherein a plurality of the blade seats (8) are connected between the outer wall of the L-shaped tube (6) and the inner wall of the ejector tube (4) in a circumferentially evenly distributed manner; The blade of the blade seat (8) faces the side of the opening (3) at the corresponding position; The opening (3) is provided with a rounded corner; The device further comprises: a housing (9), a seat motor (10), a first pulley (11), a second pulley (12), a feed channel (13), a pressure box (14), a high-pressure gas inlet (15) and a stirring discharge port (25); the rotating shaft (1) is rotatably connected to the housing (9); a seat motor (10) is provided on the upper end surface of the housing (9); the upper end of the output shaft of the seat motor (10) is connected to the first pulley (11); the first pulley (11) is transmission-connected to the second pulley (12) connected to the upper part of the rotating shaft (1); the feed channel (13) is provided on the upper end surface of the housing (9); the pressure box (14) is provided on the upper end surface of the housing (9); a high-pressure gas inlet (15) for connecting to an external gas compressor is provided on one side of the pressure box (14); and the stirring discharge port (25) is provided on the lower end surface of the housing (9).

2. A high-speed mixing device for polyurethane sponge production according to claim 1, Features: The mixing device further comprises: an inner piston (16), a spring (17), a step rod (18), a distance sensor (19), an alarm (20) and a pressure reducing pipe (21). The inner piston (16) is slidably connected in the pressure box (14). The upper end surface of the inner piston (16) is fixedly connected with the step rod (18). The step rod (18) can slidably pass through the top wall of the pressure box (14). The step rod (18) is sleeved with a spring (17). Two ends of the spring (17) respectively abut against the upper end surface of the inner piston (16) and the inner wall of the top wall of the pressure box (14). A distance sensor (19) is provided directly above the step rod (18). An alarm (20) is provided above the distance sensor (19). The pressure reducing pipe (21) is connected to the pressure box (14).

3. A high-speed mixing device for polyurethane sponge production according to claim 2, Features: When the spring (17) is in a released state, the lower edge of the inner piston (16) is higher than the highest point of the high-pressure gas inlet (15), and the upper edge of the inner piston (16) is higher than the highest point of the pressure reducing pipe (21). When the spring (17) is compressed upward to the limit position, the inlet end of the L-shaped channel (5) is connected to the pressure reducing pipe (21).

4. A high-speed mixing device for polyurethane sponge production according to claim 3, Features: The high-speed mixing device further comprises a buffer box (22), an injection port (23) and a curved pipe (24); the buffer box (22) is connected to the pressure box (14); a side of the buffer box (22) close to the pressure reducing pipe (21) is provided with an injection port (23); an outlet end of the pressure reducing pipe (21) passes through the injection port (23) and extends into the buffer box (22); the outlet end of the buffer box (22) is connected to an inlet end of the curved pipe (24); and the outlet end of the curved pipe (24) faces the rotating shaft (1).

5. A high-speed mixing device for polyurethane sponge production according to claim 4, Features: The diameter of the injection port (23) is 1.15 times the diameter of the pressure reducing tube (21).

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