Low-energy-consumption reaction tower for preparing polyether polyol

Abstract

The utility model provides a reaction tower for preparing polyether polyol with low energy consumption, which belongs to the technical field of chemical preparation reaction and comprises a preparation reaction tower body, a limiting top plate is fixedly connected to the surface of the preparation reaction tower body, a first opening is formed in the top of the preparation reaction tower body, and a second opening is formed in the top of the preparation reaction tower body. According to the low-energy-consumption reaction tower for preparing the polyether polyol, reaction raw materials are put into the mixing assembly from the filler box, meanwhile, the mixing assembly is started to conduct sufficient stirring reaction on the reaction raw materials, meanwhile, in order to prevent filler from sinking to the bottom, the vibration assembly is used for further conducting vibration reaction on the filler at the bottom of the mixing assembly, and therefore the reaction efficiency is improved. The raw materials are fully utilized and prevented from being wasted, meanwhile, the circulating pump inputs the reacted raw materials into the polyether polyol flash sieve plate furnace, and the raw materials are fully reacted, so that the circulating pump can convey the raw materials in a large quantity and in a small number of times, the service life of the circulating pump is prolonged, and the overall economic value of the device is further increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of chemical preparation reactions, and in particular relates to a reaction tower for preparing polyether polyols with low energy consumption. Background Art

[0002] Polyether polyol is an organic polymer, which is obtained by polyaddition reaction of initiator (compound containing active hydrogen group) with ethylene oxide (EO), propylene oxide (PO), butylene oxide (BO) etc. in the presence of catalyst. The largest polyether production is that glycerol (propylene glycol) is used as initiator and epoxide (generally PO and EO are used together). By changing the feeding method of PO and EO (mixed or separate), the feeding ratio, the feeding order and other conditions, various general polyether polyols are produced. Polyether polyol series products are mainly used for the preparation of rigid polyurethane foam plastics, which are widely used in refrigerators, freezers, refrigerated trucks, insulation boards, pipe insulation and other fields. The obtained product has low thermal conductivity and good dimensional stability, and is also an important raw material for the preparation of composite polyethers. The production of polyether polyols is usually prepared in a reactor.

[0003] Currently, the commonly used reaction towers for preparing polyether polyols are usually horizontal sieve plate towers. The reaction process is complicated, and the raw materials are not in sufficient contact during the reaction process, which can easily cause waste of raw materials and affect production output. At the same time, multiple reactions will also cause the pump in the reactor to be used multiple times, reducing the service life of the pump, further reducing the overall economic benefits, and causing unnecessary economic losses. For this reason, we propose a low-energy consumption reaction tower for preparing polyether polyols. Utility Model Content

[0004] The utility model aims to solve the deficiencies of the prior art and provides a reaction tower for preparing polyether polyols with low energy consumption, which is used to solve the problems raised by the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A reaction tower for preparing low-energy polyether polyols comprises: a preparation reaction tower body, the surface of the preparation reaction tower body is fixedly connected to a limiting top plate, the top of the preparation reaction tower body is provided with a first opening, the bottom of the preparation reaction tower body is fixedly connected to a limiting bottom plate, the bottom of the limiting bottom plate is fixedly connected to a plurality of supporting legs, a second opening is provided on one side of the surface of the preparation reaction tower body, a stuffing box is provided on the other side of the surface of the preparation reaction tower body, a vibration component is fixedly connected to the bottom of the inner wall of the preparation reaction tower body, a mixing component is provided on the top of the vibration component, the vibration component matches the mixing component, a circulating pump is provided on the top of the mixing component, the top of the circulating pump is fixedly connected to a polyether polyol flash sieve plate furnace, and a stuffing door is rotatably connected to one side of the stuffing box.

[0007] As a preferred solution of the utility model, the vibration assembly includes a supporting base, a connecting base, a fixed block, a limiting plate, a rotating motor, a rotating shaft striking block, a buffer column and a vibration block. Multiple supporting bases are fixedly connected to the bottom of the inner wall of the preparation reaction tower body, multiple connecting bases are fixedly connected to the top of the supporting base, multiple fixing blocks are fixedly connected to both sides of the connecting base, and multiple limiting plates are fixedly connected to one end of the fixed block.

[0008] As a preferred solution of the utility model, the plurality of rotating motors are rotatably connected to one side of the limiting plate, the plurality of rotating shaft striking blocks are arranged on the surface of the rotating shaft striking blocks, the buffer column is fixedly connected to the top of the connecting base, and the vibration block is fixedly connected to the top of the buffer column.

[0009] As a preferred solution of the utility model, the mixing assembly includes a mixing box, a rotating base, a connecting shaft, a mixing rotating plate and a stirring rod. The mixing box is arranged on the top of the vibration assembly, and a feed port is arranged on the surface of the mixing box.

[0010] As a preferred solution of the utility model, the rotating base is rotatably connected to the bottom of the inner wall of the mixing box, the connecting shaft is rotatably connected to the top of the rotating base, the mixing rotating plate is fixedly connected to the top of the connecting shaft, and the plurality of stirring rods are fixedly connected to the rotating base and the surface of the mixing rotating plate.

[0011] As a preferred solution of the utility model, a plurality of buffer shells are arranged on the top of the mixing assembly, a damper is fixedly connected to the inner wall of the buffer shell, and a buffer spring is sleeved on the surface of the damper.

[0012] As a preferred solution of the utility model, a plurality of top columns are fixedly connected to the surface of the filling door, and a push plate is fixedly connected to the top of each of the plurality of top columns.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the reaction tower for preparing low-energy polyether polyols puts the reaction raw materials from the stuffing box into the mixing component, and starts the mixing component to fully stir the reaction raw materials. At the same time, in order to prevent the stuffing from sinking to the bottom, the vibrating component is used to further vibrate the stuffing at the bottom of the mixing component, so as to make full use of the placed raw materials and prevent the waste of raw materials. At the same time, the circulating pump inputs the reacted raw materials into the polyether polyol flash sieve plate furnace. Since the raw materials are fully reacted, the circulating pump can transport more in less times, thereby improving the service life of the circulating pump and further increasing the overall economic value of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0015] In the attached picture:

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the back of the overall structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the vibration component in the structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the mixing component in the structure of the utility model.

[0020] In the figure: 1. Preparation of reaction tower body; 2. Limiting top plate; 3. First opening; 4. Limiting bottom plate; 5. Support legs; 6. Second opening; 7. Stuffing box; 8. Vibration assembly; 801. Support base; 802. Connecting base; 803. Fixed block; 804. Limiting plate; 805. Rotating motor; 806. Shaft striking block; 807. Buffer column; 808. Vibration block; 9. Mixing assembly; 901. Mixing box; 902. Rotating base; 903. Connecting shaft; 904. Mixing rotating plate; 905. Stirring rod; 10. Circulation pump; 11. Buffer shell; 12. Damper; 13. Buffer spring; 14. Polyether polyol flash sieve plate furnace; 15. Stuffing door; 16. Top column; 17. Push plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example

[0023] See also Figure 1-4 , the technical solution provided by this embodiment is as follows:

[0024] A reaction tower for preparing low-energy polyether polyols comprises: a reaction tower body 1, a limiting top plate 2 is fixedly connected to the surface of the reaction tower body 1, a first opening 3 is arranged on the top of the reaction tower body 1, a limiting bottom plate 4 is fixedly connected to the bottom of the reaction tower body 1, a plurality of supporting legs 5 are fixedly connected to the bottom of the limiting bottom plate 4, a second opening 6 is arranged on one side of the surface of the reaction tower body 1, a stuffing box 7 is arranged on the other side of the surface of the reaction tower body 1, a vibration component 8 is fixedly connected to the bottom of the inner wall of the reaction tower body 1, a mixing component 9 is arranged on the top of the vibration component 8, the vibration component 8 matches the mixing component 9, a circulating pump 10 is arranged on the top of the mixing component 9, a polyether polyol flash sieve plate furnace 14 is fixedly connected to the top of the circulating pump 10, and a stuffing door 15 is rotatably connected to one side of the stuffing box 7.

[0025] In a specific embodiment of the utility model, the reaction tower for preparing low-energy polyether polyols is operated by putting the reaction raw materials from the stuffing box 7 into the mixing component 9, and starting the mixing component 9 to fully stir the reaction raw materials. At the same time, in order to prevent the stuffing from sinking to the bottom, the vibrating component 8 is used to further vibrate the stuffing at the bottom of the mixing component 9, so as to make full use of the placed raw materials and prevent the waste of raw materials. At the same time, the circulating pump 10 inputs the reacted raw materials into the polyether polyol flash sieve plate furnace 14. Since the raw materials are fully reacted, the circulating pump 10 can transport more in less times, thereby improving the service life of the circulating pump 10 and further increasing the overall economic value of the device.

[0026] Specifically, the vibration assembly 8 includes a support base 801, a connecting base 802, a fixed block 803, a limiting plate 804, a rotating motor 805, a rotating shaft striking block 806, a buffer column 807 and a vibration block 808. Multiple support bases 801 are fixedly connected to the bottom of the inner wall of the preparation reaction tower body 1, multiple connecting bases 802 are fixedly connected to the top of the support base 801, multiple fixed blocks 803 are fixedly connected to both sides of the connecting base 802, and multiple limiting plates 804 are fixedly connected to one end of the fixed block 803.

[0027] In a specific embodiment of the present utility model, the vibration component 8 is connected to the mixing component 9 via a supporting base 801 and a connecting base 802, which support each other and can help fix the mixing component 9 at the bottom of the inner wall of the preparation reaction tower body 1, thereby improving the overall stability of the device. At the same time, the fixing block 803 can stabilize the limit plate 804 and the connecting base 802, thereby helping to further improve the stability of the device.

[0028] Specifically, multiple rotating motors 805 are rotatably connected to one side of the limit plate 804, multiple rotating shaft striking blocks 806 are all arranged on the surface of the rotating shaft striking block 806, the buffer column 807 is fixedly connected to the top of the connecting base 802, and the vibration block 808 is fixedly connected to the top of the buffer column 807.

[0029] In a specific embodiment of the utility model, the rotating motor 805 is started when the reaction is carried out, and the rotation drives the multiple rotating shaft striking blocks 806 to continuously strike the bottom of the mixing component 9 in layers, and the vibration generated by the striking is used to facilitate the reaction of the raw materials at the bottom of the mixing component 9. At the same time, the buffer column 807 and the vibration block 808 can also help the mixing component 9 to vibrate further under the drive of the mixing component 9's own gravity, thereby further improving the effect of the vibration component 8 and improving the overall reaction efficiency of the device.

[0030] Specifically, the mixing assembly 9 includes a mixing box 901, a rotating base 902, a connecting shaft 903, a mixing rotating plate 904 and a stirring rod 905. The mixing box 901 is arranged on the top of the vibration assembly 8, and a feed port is arranged on the surface of the mixing box 901.

[0031] In a specific embodiment of the present invention, the mixing assembly 9 places the raw materials to be reacted through the mixing box 901, and at the same time uses the feed port set between the mixing assembly 9 and the stuffing box 7 to ensure the input of the raw materials, helping to provide a place for the raw material reaction.

[0032] Specifically, the rotating base 902 is rotatably connected to the bottom of the inner wall of the mixing box 901, the connecting shaft 903 is rotatably connected to the top of the rotating base 902, the mixing rotating plate 904 is fixedly connected to the top of the connecting shaft 903, and multiple stirring rods 905 are fixedly connected to the rotating base 902 and the surface of the mixing rotating plate 904.

[0033] In a specific embodiment of the present utility model, the rotating base 902 drives the rotation of the connecting shaft 903, thereby driving the rotation of the mixing rotating plate 904. The rotation of the rotating base 902 and the mixing rotating plate 904 causes the stirring rod 905 to rotate multiple times, thereby stimulating the raw materials in the mixing box 901 to react, helping to maximize the utilization of the raw materials and improving the overall economic effect of the device.

[0034] Specifically, a plurality of buffer shells 11 are arranged on the top of the mixing assembly 9 , and a damper 12 is fixedly connected to the inner wall of the buffer shell 11 , and a buffer spring 13 is sleeved on the surface of the damper 12 .

[0035] In a specific embodiment of the utility model, the buffer shell 11 helps to buffer the connection between the mixing component 9 and the polyether polyol flash sieve plate furnace 14. Under the action of gravity, the damper 12 will sink, and the buffer spring 13 provides buffering for the overall sinking, which has a micro-vibration effect and can further help the raw materials to react.

[0036] Specifically, a plurality of top columns 16 are fixedly connected to the surface of the filling door 15 , and a push plate 17 is fixedly connected to the top of each of the top columns 16 .

[0037] In a specific embodiment of the utility model, the top column 16 and the push plate 17 can push a small amount of raw material residues remaining on the inner wall of the stuffing box 7 into the mixing assembly 9 when the stuffing door 15 is closed after the stuffing is placed in the stuffing box 7, thereby further enhancing the overall utilization rate of the raw materials by the device.

[0038] Working principle: This low-energy consumption polyether polyol preparation reaction tower puts the reaction raw materials from the stuffing box 7 into the mixing component 9, and starts the mixing component 9 to fully stir the reaction raw materials. At the same time, in order to prevent the stuffing from sinking to the bottom, the vibrating component 8 is used to further vibrate the stuffing at the bottom of the mixing component 9, so as to make full use of the placed raw materials and prevent the waste of raw materials. At the same time, the circulating pump 10 inputs the reacted raw materials into the polyether polyol flash sieve plate furnace 14. Because the raw materials are fully reacted, the circulating pump 10 can deliver more in less times, thereby improving the service life of the circulating pump 10 and further increasing the device The overall economic value, the vibration component 8 is connected to the mixing component 9 through the supporting base 801 and the connecting base 802, and the two support each other, which can help the mixing component 9 to be fixed at the bottom of the inner wall of the preparation reaction tower body 1, and improve the overall stability of the device. At the same time, the fixing block 803 can stabilize the limit plate 804 and the connecting base 802, and help to further improve the stability of the device. The rotating motor 805 is started during the reaction, and the rotation drives the multiple rotating shaft striking blocks 806 to continuously strike the bottom of the mixing component 9 in layers, and the vibration generated by the striking is used to facilitate the reaction of the raw materials at the bottom of the mixing component 9. At the same time, the buffer column 807 is used to The vibration block 808 can also help the mixing component 9 to further vibrate under the drive of the mixing component 9's own gravity, thereby further improving the effect of the vibration component 8 and improving the overall reaction efficiency of the device. The mixing component 9 places the raw materials that need to be reacted through the mixing box 901, and uses the feed port set between the filling box 7 to ensure the input of the raw materials, helping to provide a place for the raw material reaction. The rotating base 902 drives the rotation of the connecting shaft 903, thereby driving the rotation of the mixing rotating plate 904. The rotation of the rotating base 902 and the mixing rotating plate 904 causes the stirring rod 905 to rotate at multiple frequencies, thereby stimulating the mixing box 90 1 to react with the raw materials, help to maximize the utilization of the raw materials and improve the overall economic effect of the device. The buffer shell 11 helps to buffer the connection between the mixing component 9 and the polyether polyol flash sieve furnace 14. The damper 12 will sink under the action of gravity, and the buffer spring 13 provides a buffer for the overall sinking, which has a micro-vibration effect and can further help the raw materials to react. The top column 16 and the push plate 17 can push a small amount of raw material residues left on the inner wall of the stuffing box 7 into the mixing component 9 when the stuffing door 15 is closed after the stuffing is placed in the stuffing box 7, thereby further enhancing the overall utilization rate of the raw materials.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A reaction tower for preparing low-energy polyether polyols, characterized in that: include: A preparation reaction tower body (1) is provided, wherein the surface of the preparation reaction tower body (1) is fixedly connected to a limit top plate (2), the top of the preparation reaction tower body (1) is provided with a first opening (3), the bottom of the preparation reaction tower body (1) is fixedly connected to a limit bottom plate (4), the bottom of the limit bottom plate (4) is fixedly connected to a plurality of support legs (5), one side of the surface of the preparation reaction tower body (1) is provided with a second opening (6), the other side of the surface of the preparation reaction tower body (1) is provided with a stuffing box (7), the bottom of the inner wall of the preparation reaction tower body (1) is fixedly connected to a vibration component (8), the top of the vibration component (8) is provided with a mixing component (9), the vibration component (8) matches the mixing component (9), the top of the mixing component (9) is provided with a circulation pump (10), the top of the circulation pump (10) is fixedly connected to a polyether polyol flash sieve plate furnace (14), and one side of the stuffing box (7) is rotatably connected to a stuffing door (15).

2. A reaction tower for preparing low-energy polyether polyol according to claim 1, characterized in that: The vibration assembly (8) comprises a support base (801), a connection base (802), a fixed block (803), a limit plate (804), a rotating motor (805), a rotating shaft striking block (806), a buffer column (807) and a vibration block (808); a plurality of the support bases (801) are fixedly connected to the bottom of the inner wall of the preparation reaction tower body (1); a plurality of the connection bases (802) are fixedly connected to the top of the support base (801); a plurality of the fixed blocks (803) are fixedly connected to both sides of the connection base (802); and a plurality of the limit plates (804) are fixedly connected to one end of the fixed block (803).

3. A reaction tower for preparing low-energy polyether polyol according to claim 2, characterized in that: The plurality of rotating motors (805) are rotatably connected to one side of the limiting plate (804), the plurality of rotating shaft striking blocks (806) are all arranged on the surface of the rotating shaft striking blocks (806), the buffer column (807) is fixedly connected to the top of the connecting base (802), and the vibration block (808) is fixedly connected to the top of the buffer column (807).

4. A reaction tower for preparing low-energy polyether polyol according to claim 1, characterized in that: The mixing assembly (9) comprises a mixing box (901), a rotating base (902), a connecting rotating shaft (903), a mixing rotating plate (904) and a stirring rod (905); the mixing box (901) is arranged on the top of the vibration assembly (8); and a feed port is arranged on the surface of the mixing box (901).

5. A reaction tower for preparing low-energy polyether polyol according to claim 4, characterized in that: The rotating base (902) is rotatably connected to the bottom of the inner wall of the mixing box (901), the connecting shaft (903) is rotatably connected to the top of the rotating base (902), the mixing rotating plate (904) is fixedly connected to the top of the connecting shaft (903), and the plurality of stirring rods (905) are fixedly connected to the surfaces of the rotating base (902) and the mixing rotating plate (904).

6. A reaction tower for preparing low-energy polyether polyol according to claim 1, characterized in that: A plurality of buffer shells (11) are arranged on the top of the mixing assembly (9); a damper (12) is fixedly connected to the inner wall of the buffer shell (11); and a buffer spring (13) is sleeved on the surface of the damper (12).

7. A reaction tower for preparing low-energy polyether polyol according to claim 1, characterized in that: A plurality of top columns (16) are fixedly connected to the surface of the filling door (15), and a push plate (17) is fixedly connected to the top of each of the plurality of top columns (16).

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