A predehydration device for polyol polyether production

Abstract

The application discloses a kind of polyol polyether production predehydration device, it is related to polyol polyether production dehydration device technical field;Including device main body, device main body top is provided with top cover, the device main body is sequentially provided with stirring mechanism, heating mechanism and filter mechanism from top to bottom in;The filter mechanism includes: annular slide rail, annular slide rail is installed in device main body inner wall;Annular rack, a plurality of sliders are installed on the circumferential outer wall of annular rack, slider slides in annular slide rail;Rotary drive part, rotary drive part is installed in device main body inside.This application is filtered by setting filter mechanism, can use filter disc, based on rotary drive part work, drive annular rack rotation, in turn drive annular inclined table synchronous rotation, since annular inclined table is inclined annular structure, while annular inclined table rotates, two ball head rods realize the high and low undulation of alternation, to promote material movement in filter disc top, improve filtering efficiency.

Description

Technical Field

[0001] This invention relates to the technical field of dehydration equipment for polyol polyether production, and particularly to a pre-dehydration device for polyol polyether production. Background Technology

[0002] In the chemical and pharmaceutical industries, polyol polyethers are an important raw material, and their production process requires dehydration. Current dehydration methods involve first selecting appropriate polyether polyols and dehydrating agents, mixing them in a specific ratio, heating the mixture to a certain temperature to promote water evaporation or desorption, thus accelerating the dehydration process. After the mixture cools, the dehydrating agent is separated from the polyether polyol through filtration or centrifugation.

[0003] The above dehydration method has the following shortcomings: when filtering, only ordinary filter discs are used, which are prone to clogging or have low filtration efficiency, and needs to be improved. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a pre-dehydration device for the production of polyol polyethers.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A pre-dehydration device for the production of polyol polyethers includes a main body, wherein a stirring mechanism, a heating mechanism, and a filtration mechanism are arranged sequentially from top to bottom within the main body, and the filtration mechanism includes:

[0007] An annular slide rail is installed on the inner wall of the main body of the device.

[0008] A ring-shaped gear frame, with multiple sliders mounted on its outer circumference, the sliders sliding within a ring-shaped slide rail;

[0009] A rotation drive unit is installed inside the main body of the device and is used to drive the ring gear frame to rotate.

[0010] An annular inclined platform, with a connecting rod fixed to the top of the annular inclined platform. The connecting rod is fixed to the outer wall of the bottom of the annular gear frame. An inclined annular groove adapted to the shape of the annular inclined platform is provided at the bottom of the annular inclined platform.

[0011] An annular elastic membrane is attached to the inner wall of the main body of the device on its outer side, and a filter disc is attached to the inner side of the annular elastic membrane.

[0012] The ball head is fixed to the top outer wall of the annular elastic membrane. Two ball head are symmetrically arranged, and the top of the ball head is slidably connected to the annular groove of the annular inclined platform.

[0013] A guide frame is fixed to the inner wall of the main body of the device, and ball-head rods slide up and down through the guide frame. This invention, by setting up a filtration mechanism, enables filtration using a filter disc. The filter disc is floating, and based on the operation of the rotation drive unit, it drives the annular gear frame to rotate, which in turn drives the annular inclined platform to rotate synchronously. Since the annular inclined platform is an inclined annular structure, while the annular inclined platform rotates, the two ball-head rods alternately rise and fall, thereby promoting the movement of material on the top of the filter disc and improving filtration efficiency.

[0014] In the above technical solution, preferably, the rotation drive unit includes:

[0015] A rotary drive motor is installed inside the main body of the device;

[0016] The rotating drive gear has its shaft connected to the output end of the rotating drive motor, and it meshes with the ring gear frame.

[0017] In the above technical solution, preferably, the top of the annular elastic membrane is provided with a plurality of equidistant and concentric annular ribs. By providing annular ribs, the material can generate a certain degree of up-and-down vibration when moving on the top of the filter disc, and can also be blocked and slowed down to a certain extent, so that water can pass through the filter holes more quickly, thereby improving the filtration efficiency of the filter disc.

[0018] In the above technical solution, preferably, a second support frame is fixed inside the main body of the device, and a hammering assembly for hammering the filter disc is provided on the second support frame. The hammering assembly can hammer up the material on the filter disc to prevent it from clogging the filter disc, thereby accelerating water flow through the filter holes and improving the filtration efficiency of the filter disc.

[0019] In the above technical solution, preferably, the hammering component includes:

[0020] A ball-head push rod is vertically inserted into the second support frame. A guide block is provided on the bottom side of the ball-head push rod, and the guide block is slidably disposed in the guide groove.

[0021] A spring is positioned between the ball head at the top of the ball head rod and the second support frame.

[0022] The first lever is fixed to the bottom of the annular elastic membrane. The top of the first lever is connected to the bottom of a ball-head rod. The first lever extends towards the center of the main body of the device and is provided with a first lever rod.

[0023] The second lever is fixed to the bottom of the annular elastic membrane, and the top of the second lever is connected to the bottom of another ball head rod. The first lever extends towards the center of the main body of the device and is provided with a second lever.

[0024] A sliding block is slidably disposed at the bottom of the second support frame. The sliding block is provided with a first inclined surface and a second inclined surface that cooperate with the first lever and the second lever. The sliding block is provided with a guide groove, which includes a horizontal groove, a vertical groove extending downward at both ends of the horizontal groove, and an inclined groove connecting the vertical groove and the horizontal groove. A one-way stop component is provided at the connection between the inclined groove and the horizontal groove.

[0025] The first lever and the second lever alternately push the sliding block to move back and forth, so that the guide block moves down through the inclined groove and then resets through the vertical groove so that the ball head push rod can strike the filter disc.

[0026] This structure eliminates the need for additional power to the hammering assembly. The ball joint moves up and down via the driving force of the rotating drive unit, causing the first and second levers to move up and down as well. These levers, in conjunction with the first and second inclined surfaces respectively, push the sliding block to reciprocate. During this reciprocating motion, the guide block first moves along the transverse groove past the one-way stop assembly. When the guide block reaches another one-way stop assembly, it is guided to move along the inclined groove. As the guide block moves down the inclined groove, the ball joint push rod moves down, compressing the spring. When the guide block reaches the bottom of the vertical groove, the spring quickly springs back up, and the guide block rapidly resets along the vertical groove, thus achieving the purpose of the ball joint push rod hammering the filter disc.

[0027] In the above technical solution, preferably, the one-way gear assembly includes a hinge plate disposed at the top of the intersection of the inclined groove and the transverse groove, and a torsion spring is disposed on the hinge shaft of the hinge plate to make the hinge plate elastically fit against the outer side wall of the top of the inclined groove.

[0028] In the above technical solution, preferably, the bottom of the main body of the device is provided with a discharge pipe, one end of which is connected to the space below the filter disc, and a discharge control valve is provided on the discharge pipe to control the opening and closing of the discharge pipe.

[0029] In the above technical solution, preferably, the stirring mechanism includes:

[0030] The first support frame is installed inside the main body of the device;

[0031] The mixing chamber has a bucket-shaped structure at the bottom, and a first output pipe is connected to the bottom end of the mixing chamber. A first control valve is installed on the first output pipe to control the on / off state of the first output pipe.

[0032] A stirring shaft is rotatably mounted on the first support frame;

[0033] The stirring rack is fixed to the bottom of the stirring shaft and has a V-shaped or triangular structure that fits the inner wall of the bottom of the mixing chamber.

[0034] The stirring drive unit is used to control the rotation of the stirring shaft.

[0035] In the above technical solution, preferably, the stirring drive unit includes:

[0036] A stirring control motor is mounted on the first support frame;

[0037] The stirring drive gear has its shaft connected to the output end of the stirring control motor. A driven gear is installed at the top of the stirring shaft, and the stirring drive gear meshes with the driven gear.

[0038] In the above technical solution, preferably, the heating mechanism includes:

[0039] The heating chamber has a bucket-shaped structure at the bottom, and a second output pipe is connected to the bottom end of the heating chamber. A second control valve is installed on the second output pipe to control the on / off state of the second output pipe.

[0040] The mounting bracket is installed inside the main body of the device, and a heating component is installed at the bottom of the mounting bracket.

[0041] The beneficial effects of the present invention are as follows: By setting up a filtration mechanism, the present invention can use a filter disc for filtration. The filter disc is floating and operates based on a rotation drive unit, which drives the annular gear frame to rotate, thereby driving the annular inclined platform to rotate synchronously. Since the annular inclined platform is an inclined annular structure, while the annular inclined platform rotates, the two ball-head rods alternately rise and fall, thereby causing the material to move on the top of the filter disc and improving filtration efficiency. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention.

[0043] Figure 2 This is a schematic diagram of the internal structure of an embodiment of the present invention.

[0044] Figure 3 This is a cross-sectional schematic diagram of the annular inclined platform in an embodiment of the present invention.

[0045] Figure 4 This is a schematic diagram of the hammering assembly in an embodiment of the present invention.

[0046] Figure 5 This is a schematic diagram of the structure of the sliding block after it is pushed downward by the first lever in an embodiment of the present invention.

[0047] Figure 6 This is a schematic diagram of the guide groove on the sliding block in an embodiment of the present invention.

[0048] Figure 7 This is a schematic diagram of the structure of the sliding block after it is pushed downward by the second lever in an embodiment of the present invention.

[0049] Figure 8This is a schematic diagram of the mixing chamber and heating chamber in an embodiment of the present invention. Detailed Implementation

[0050] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0051] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0052] See Figures 1 to 8 A pre-dehydration device for the production of polyol polyethers includes a main body 1. The main body 1 contains, from top to bottom, a stirring mechanism, a heating mechanism, and a filtration mechanism. The filtration mechanism includes:

[0053] Annular slide rail 2 is installed on the inner wall of the main body 1 by welding or bolting.

[0054] The annular gear frame 3 has multiple sliders 4 evenly installed on its outer circumference. The sliders 4 slide within the annular slide rail 2.

[0055] A rotation drive unit is installed inside the main body 1 of the device and is used to drive the ring gear 3 to rotate.

[0056] An annular inclined platform 5, with a connecting rod 6 fixed to the top of the annular inclined platform 5. The connecting rod 6 is fixed to the bottom outer wall of the annular gear frame 3. An inclined annular groove 7 adapted to the shape of the annular inclined platform 5 is provided at the bottom of the annular inclined platform 5.

[0057] An annular elastic membrane 8 is connected to the inner wall of the main body 1 on the outside, and a filter disc 9 is connected to the inside of the annular elastic membrane 8.

[0058] Ball head rod 10, ball head rod 10 is fixed to the top outer wall of the annular elastic membrane 8, two ball head rods 10 are symmetrically arranged, and the top of the ball head rod 10 is slidably connected to the annular groove 7 of the annular inclined platform 5;

[0059] Guide frame 11 is fixed to the inner wall of the main body 1 of the device, and ball head rod 10 slides up and down through the guide frame 11.

[0060] By setting up this filtration mechanism, the present invention can use the filter disc 9 for filtration. The filter disc 9 is floating and operates based on the rotation drive unit, which drives the annular gear frame 3 to rotate, and then drives the annular inclined platform 5 to rotate synchronously. Since the annular inclined platform 5 is an inclined annular structure, while the annular inclined platform 5 is rotating, the two ball-head rods 10 achieve alternating up and down undulations, thereby causing the material to move on the top of the filter disc 9 and improving the filtration efficiency.

[0061] In this embodiment, the rotation drive unit includes:

[0062] Rotation drive motor 12 is installed inside the main body 1 of the device;

[0063] Rotary drive gear 13 is driven by a shaft that is connected to the output end of rotary drive motor 12, and rotary drive gear 13 meshes with ring gear frame 3.

[0064] In this embodiment, the top of the annular elastic membrane 8 is provided with a plurality of equidistant and concentric annular ribs 14. By providing the annular ribs 14, the material can generate a certain degree of up-and-down vibration when moving on the top of the filter disc 9, and can also be blocked and slowed down to a certain extent, so that water can pass through the filter holes more quickly, thereby improving the filtration efficiency of the filter disc 9.

[0065] In this embodiment, a second support frame 15 is fixed inside the main body 1 of the device, and a hammering assembly for hammering the filter disc 9 is provided on the second support frame 15. The hammering assembly can hammer up the material on the filter disc 9 to prevent the material from clogging the filter disc 9, thereby accelerating the water flow through the filter holes and improving the filtration efficiency of the filter disc 9.

[0066] In this embodiment, the hammering component includes:

[0067] The ball head rod 16 is vertically mounted on the second support frame 15. A guide block 17 is provided on the bottom side of the ball head rod 16, and the guide block 17 is slidably mounted in the guide groove 18.

[0068] Spring 19 is located between the ball head at the top of the ball head rod 16 and the second support frame 15;

[0069] The first lever 20 is fixed to the bottom of the annular elastic membrane 8. The top of the first lever 20 is connected to the bottom of a ball-head rod 10. The first lever 20 extends towards the center of the main body 1 and is provided with a first lever 21.

[0070] The second lever 22 is fixed to the bottom of the annular elastic membrane 8. The top of the second lever 22 is connected to the bottom of another ball head rod 10. The first lever 20 extends towards the center of the device body 1 and is provided with a second lever 23.

[0071] The sliding block 24 is slidably disposed at the bottom of the second support frame 15. The bottom of the second support frame 15 is provided with a horizontal sliding groove. The sliding block 24 slides on the horizontal sliding groove. The sliding block 24 is provided with a first inclined surface 25 and a second inclined surface 26 that cooperate with the first lever 21 and the second lever 23. The sliding block 24 is provided with a guide groove 18. The guide groove 18 includes a horizontal groove 27, a vertical groove 28 extending downward at both ends of the horizontal groove 27, and an inclined groove 29 connecting the vertical groove 28 and the horizontal groove 27. A one-way stop assembly is provided at the connection between the inclined groove 29 and the horizontal groove 27.

[0072] The first lever 21 and the second lever 23 alternately push the sliding block 24 to move back and forth, so that the guide block 17 moves down through the inclined groove 29 and then resets through the vertical groove 28 so that the ball head push rod 16 can hammer the filter disc 9.

[0073] This structure eliminates the need for additional power to the hammering assembly. The ball joint 10 moves up and down via the driving force of the rotating drive unit, causing the first lever 21 and the second lever 23 to move up and down as well. The first lever 21 and the second lever 23, respectively, engage with the first inclined surface 25 and the second inclined surface 26, pushing the sliding block 24 to reciprocate. During the reciprocating movement of the sliding block 24, the guide block 17 first moves along the transverse groove 27 past the one-way stop assembly. When the guide block 17 moves to another one-way stop assembly, it is guided to move along the inclined groove 29. As the guide block 17 moves down along the inclined groove 29, the ball joint rod 16 moves down, compressing the spring 19. When the guide block 17 reaches the bottom of the vertical groove 28, the spring 19 quickly springs back up, and the guide block 17 quickly returns to its original position along the vertical groove 28, thus achieving the purpose of the ball joint rod 16 hammering the filter disc 9. To ensure smoother sliding, the ends of the first lever 21 and the second lever 23 that engage with the first inclined surface 25 and the second inclined surface 26 are each provided with matching inclined surfaces.

[0074] In this embodiment, the one-way gear shift assembly includes a hinge plate 30 disposed at the top of the intersection of the inclined groove 29 and the transverse groove 27. A torsion spring is disposed on the hinge shaft of the hinge plate 30 to allow the hinge plate 30 to elastically fit against the outer side wall of the top of the inclined groove 29. This one-way gear shift assembly has a simple structure and is easy to install.

[0075] In this embodiment, a discharge pipe 31 is provided at the bottom of the main body 1 of the device. One end of the discharge pipe 31 is connected to the space below the filter disc 9. A discharge control valve 32 is provided on the discharge pipe 31 to control the opening and closing of the discharge pipe 31. The discharge control valve 32 can adjust and control the discharge speed according to the filtration speed.

[0076] In this embodiment, to facilitate stirring, the stirring mechanism includes:

[0077] The first support frame 33 is installed inside the main body 1 of the device;

[0078] The mixing chamber 34 has a bucket-shaped structure at the bottom. The bottom end of the mixing chamber 34 is connected to a first output pipe 35. A first control valve 36 is provided on the first output pipe 35 to control the on / off state of the first output pipe 35.

[0079] A stirring shaft 37 is rotatably mounted on a first support frame 33;

[0080] The stirring rack 38 is fixed to the bottom end of the stirring shaft 37. The stirring rack 38 has a V-shaped or triangular structure that is adapted to the inner wall of the bottom of the mixing chamber 34.

[0081] The stirring drive unit is used to control the rotation of the stirring shaft 37.

[0082] In this embodiment, the stirring drive unit includes:

[0083] A stirring control motor 39 is mounted on the first support frame 33;

[0084] The stirring drive gear 40 is connected to the output end of the stirring control motor 39. A driven gear 41 is installed at the top of the stirring shaft 37, and the stirring drive gear 40 meshes with the driven gear 41.

[0085] In this embodiment, the heating mechanism includes the following components to facilitate heating:

[0086] The heating chamber 42 has a bucket-shaped structure at the bottom. A second output pipe 43 is connected to the bottom end of the heating chamber 42. A second control valve 44 is provided on the second output pipe 43 to control the on / off state of the second output pipe 43.

[0087] Mounting bracket 45 is installed inside the main body 1 of the device, and heating component 46 is installed at the bottom of the mounting bracket 45.

[0088] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A pre-dehydration device for the production of polyol polyethers, comprising a main body (1), characterized in that, The main body (1) of the device is provided with a stirring mechanism, a heating mechanism and a filtering mechanism arranged sequentially from top to bottom. The filtering mechanism includes: Circular slide rail (2) is installed on the inner wall of the main body (1) of the device; The ring gear frame (3) has multiple sliders (4) installed on its outer circumference. The sliders (4) slide within the ring slide rail (2). Rotation drive unit, which is installed inside the main body (1) of the device, is used to drive the ring gear frame (3) to rotate; An annular inclined platform (5) has a connecting rod (6) fixed at the top of the annular inclined platform (5). The connecting rod (6) is fixed to the bottom outer wall of the annular gear frame (3). An inclined annular groove (7) adapted to the shape of the annular inclined platform (5) is provided at the bottom of the annular inclined platform (5). An annular elastic membrane (8) is connected to the inner wall of the main body (1) of the device on the outside, and a filter disc (9) is connected to the inner side of the annular elastic membrane (8). Ball head rod (10), the ball head rod (10) is fixed to the top outer wall of the annular elastic membrane (8), the two ball head rods (10) are symmetrically arranged, and the top of the ball head rod (10) is slidably connected to the annular groove (7) of the annular inclined platform (5); Guide frame (11) is fixed to the inner wall of the main body (1) of the device, and ball head rod (10) slides up and down through the guide frame (11); A second support frame (15) is fixed inside the main body (1) of the device. A hammering assembly for hammering the filter disc (9) is provided on the second support frame (15). The hammering assembly includes: A ball-head top rod (16) is vertically inserted into the second support frame (15). A guide block (17) is provided on the bottom side of the ball-head top rod (16). The guide block (17) is slidably disposed in the guide groove (18). Spring (19) is located between the ball head at the top of the ball head rod (16) and the second support frame (15); The first lever (20) is fixed to the bottom of the annular elastic membrane (8). The top of the first lever (20) is connected to the bottom of a ball head rod (10). The first lever (20) extends towards the center of the main body (1) of the device and is provided with a first lever (21). The second lever (22) is fixed to the bottom of the annular elastic membrane (8). The top of the second lever (22) is connected to the bottom of another ball head rod (10). The first lever (20) extends towards the center of the device body (1) and is provided with a second lever (23). A sliding block (24) is slidably disposed at the bottom of the second support frame (15). The sliding block (24) is provided with a first inclined surface (25) and a second inclined surface (26) that cooperate with the first lever (21) and the second lever (23). The sliding block (24) is provided with a guide groove (18). The guide groove (18) includes a horizontal groove (27), a vertical groove (28) extending downward at both ends of the horizontal groove (27), and an inclined groove (29) connecting the vertical groove (28) and the horizontal groove (27). A one-way gear assembly is provided at the connection between the inclined groove (29) and the horizontal groove (27). The first lever (21) and the second lever (23) alternately push the sliding block (24) to move back and forth, so that the guide block (17) moves down through the inclined groove (29) and then resets through the vertical groove (28) so that the ball-head push rod (16) hammers the filter disc (9). The one-way gear assembly includes a hinge plate (30) disposed at the top of the intersection of the inclined groove (29) and the transverse groove (27). A torsion spring is provided on the hinge shaft of the hinge plate (30) so that the hinge plate (30) elastically fits against the outer side wall of the top of the inclined groove (29).

2. The pre-dehydration device for producing polyol polyethers according to claim 1, characterized in that, The rotation drive unit includes: Rotation drive motor (12) is installed inside the main body (1) of the device; Rotary drive gear (13) is connected to the output end of rotary drive motor (12) via a drive shaft. Rotary drive gear (13) meshes with ring gear frame (3).

3. The pre-dehydration device for producing polyol polyethers according to claim 1, characterized in that, The top of the annular elastic membrane (8) is provided with a plurality of annular ribs (14) arranged concentrically at equal intervals.

4. The pre-dehydration device for producing polyol polyethers according to claim 1, characterized in that, The device body (1) has a discharge pipe (31) at the bottom. One end of the discharge pipe (31) is connected to the space below the filter disc (9). A discharge control valve (32) is provided on the discharge pipe (31) to control the opening and closing of the discharge pipe (31).

5. A pre-dehydration device for producing polyol polyethers according to claim 1, characterized in that, The stirring mechanism includes: The first support frame (33) is installed inside the main body (1) of the device; The mixing chamber (34) has a bucket-shaped structure at the bottom. The bottom of the mixing chamber (34) is connected to a first output pipe (35). A first control valve (36) for controlling the opening and closing of the first output pipe (35) is provided on the first output pipe (35). A stirring shaft (37) is rotatably mounted on a first support frame (33); The stirring rack (38) is fixed to the bottom end of the stirring shaft (37). The stirring rack (38) has a V-shaped or triangular structure that is adapted to the inner wall of the bottom of the mixing chamber (34). The stirring drive unit is used to control the rotation of the stirring shaft (37).

6. A pre-dehydration device for producing polyol polyethers according to claim 5, characterized in that, The stirring drive unit includes: A stirring control motor (39) is mounted on the first support frame (33); The stirring drive gear (40) is connected to the output end of the stirring control motor (39) via a drive connection. A driven gear (41) is installed at the top of the stirring shaft (37). The stirring drive gear (40) meshes with the driven gear (41).

7. A pre-dehydration device for producing polyol polyethers according to claim 1, characterized in that, The heating mechanism includes: Heating chamber (42), the bottom of heating chamber (42) is a bucket-shaped structure, the bottom of heating chamber (42) is connected to a second output pipe (43), and a second control valve (44) is provided on the second output pipe (43) for controlling the opening and closing of the second output pipe (43). Mounting bracket (45) is installed inside the main body (1) of the device, and a heating component (46) is installed at the bottom of the mounting bracket (45).

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