Polyether filtering device for increasing polyether polyol yield

Abstract

The utility model discloses a polyether filtering device for increasing the polyether polyol yield, which belongs to the technical field of polyether filtering and comprises a base serving as a mounting carrier, a supporting pipe is mounted at the center of the top of the base, a circulating mechanism is mounted at the bottom end of the outer side of the supporting pipe, and a water inlet is formed in the bottom end of the circulating mechanism. The bottom of the outer side of the supporting pipe is provided with a rotatable rotating mechanism, the rotating mechanism is located above the circulating mechanism, the top of the rotating mechanism is provided with a filtering mechanism used for filtering polyether, and the top of the outer side of the supporting pipe is sleeved with a rotatable connecting mechanism. According to the polyether raw material filtering device, polyether raw materials can be sequentially conveyed into the six groups of filtering cartridges through the circulating mechanism, multi-layer step-by-step filtering treatment on the polyether raw materials is realized through the filtering structures in the filtering cartridges, the filtering effect of the device on the polyether raw materials is ensured, and the impurity content in the polyether raw materials is greatly reduced; further, the yield of later-stage extraction of polyether polyol is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to polyether filtering technical field, in particular to a kind of polyether filtering device of polyether polyol production. BACKGROUND

[0002] Polyether polyol (abbreviation polyether) is by initiator (compound containing active hydrogen group) and oxirane, propylene oxide, butylene oxide etc. in the presence of catalyst is made by polyaddition reaction, the largest polyether production is with glycerol (glycerol) as initiator and epoxide, by changing the feeding mode of oxirane and propylene oxide, the feeding ratio, feeding sequence etc. Condition, produce various general polyether polyol, polyether needs to be filtered out before residue before use.

[0003] The filtering structure of the current polyether filtering device is single, the filtering effect is poor, and then the raw material impurities are more, leading to low polyether polyol production in later stage, the effect of polyether filtering device on polyether raw material filtering cannot be further improved;And polyether filtering device needs to stop the filtering treatment of device to polyether raw material after being used for a period of time to replace or clean the filter screen in the device, the filter screen that needs to be replaced cannot be taken out and replaced while continuously filtering polyether raw material, thereby reducing the filtering efficiency of the polyether filtering device.

[0004] Therefore, it is urgent to provide a polyether polyol production polyether filtering device to solve the above problems. UTILITY MODEL CONTENT

[0005] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art, and provide a polyether polyol production polyether filtering device.

[0006] To solve the above technical problems, one technical scheme of the utility model is to provide a polyether polyol production polyether filtering device, which comprises a base as a mounting carrier, a support pipe is installed at the center position of the top of the base, a circulating mechanism is installed at the bottom end of the outer side of the support pipe, a rotatable rotating mechanism is arranged at the bottom of the outer side of the support pipe, and the rotating mechanism is located above the circulating mechanism, a filtering mechanism for filtering polyether is installed at the top of the rotating mechanism, a rotatable connecting mechanism is sleeved at the top of the outer side of the support pipe, a material injection mechanism is installed at the top end of the support pipe, the connecting mechanism is located above the filtering mechanism, and the material injection mechanism is located above the connecting mechanism.

[0007] The utility model further sets up: the circulating mechanism includes the collection box of fixed installation in the bottom end outside the support pipe, the even setting of six groups collection partition is in the inside non -central position of collection box, the outside installation of collection partition has the fixed ring, the top even installation of fixed ring has five groups circulating pump, and the input end of circulating pump communicates with the inside bottom of adjacent one group collection partition, and the inside bottom of remaining one group collection partition is installed with the discharge pipe, the output end of circulating pump is installed with the conveying pipe.

[0008] Through the above technical scheme, a group of circulating pumps connected with the first group of collection partitions convey the polyether raw materials in the first group of collection partitions to the second group of separation chambers through the conveying pipe, and so on, so that the polyether raw materials can pass through the five groups of filter cartridges in turn, thereby ensuring the filtering effect of the filtering mechanism on the polyether raw materials.

[0009] The utility model further sets up: the rotating mechanism includes the slewing bearing of installation in the top end outside the collection box, the top installation of slewing bearing outer ring has the rotating box, the even setting of six groups separation chamber is in the inside non -central position of rotating box, the top even setting of rotating box has the feed inlet with six groups and separation chamber inside top communication, the top of fixed ring is provided with the drive device that drives rotating box rotates.

[0010] Through the above technical scheme, the control drive device drives the rotating box to rotate, and the rotating box drives the filtering mechanism to rotate synchronously, thereby switching the injection mechanism to inject the polyether raw materials into the inside of the next group of filter cartridges, and exposing the filter cartridge inside the previous group of filter cartridges at the position of the fan-shaped opening, which can ensure the continuous filtering treatment of the filtering mechanism on the polyether raw materials, and can also replace the filter screen inside the filter cartridge exposed at the position of the fan-shaped opening.

[0011] The utility model further sets up: the filtering mechanism includes the filter cartridge in the top of rotating box, the filter cartridge is provided with six groups, and the bottom end of six groups filter cartridges is evenly distributed at the non -central position of the top of rotating box, the inside bottom of filter cartridge is installed with the first guide chute that communicates with the feed inlet, the inside of filter cartridge is evenly provided with a plurality of groups of annular frames, and a plurality of groups of annular frames are fixedly connected through connecting rods, the annular frame is installed with the filter screen for filtering polyether in the inside.

[0012] Through the above technical scheme, the polyether raw materials falling into the inside of the filter cartridge can be filtered by a plurality of groups of filter screens in the inside of the filter cartridge in turn, thereby greatly reducing the impurity content in the polyether raw materials and ensuring the yield of polyether polyol extracted in the later stage.

[0013] The utility model further sets up: the connecting mechanism includes the connecting round bin of the top of the support pipe outside setting, the bottom of connecting round bin with six groups of filter cartridge top fixed connection, the inside of connecting round bin evenly is provided with six groups of compartment, and the inside bottom of compartment is provided with the round through -hole that communicates with filter cartridge top.

[0014] Through the above technical scheme, the six groups of filter cartridges are driven to rotate at the same time, the connecting round bin is driven to rotate synchronously, the six groups of filter cartridges can be separated from the injection mechanism, the rotation of the six groups of filter cartridges is not affected, and the injection mechanism can stably inject the polyether raw material into the inside of the filter cartridge through the compartment and the round through -hole.

[0015] The utility model further sets up: the injection mechanism includes the storage bin of fixed mounting in the support pipe top, the outside of storage bin is provided with the sector opening, the position of the inside bottom of storage bin is close to the sector opening and is provided with the second guide chute, the top of storage bin is provided with the injection port, the edge position of storage bin bottom evenly is provided with five groups of installation slot with the output end of the conveying pipe cooperation.

[0016] Through the above technical scheme, the polyether raw material can be injected into the inside of the storage bin through the injection port, then the polyether raw material can be stably injected into the inside of the filter cartridge through the second guide chute and the round through -hole, the operator can take out and replace the filter screen in the filter cartridge below through the sector opening, and after the output end of the conveying pipe is fixed in the installation slot, the polyether raw material can be stably injected into the inside of the five groups of compartments without affecting the rotation and switching of the six groups of filter cartridges.

[0017] The utility model further sets up: the drive device includes the servo motor of providing driving force, the servo motor is located in the top of fixed ring, the output end of servo motor is installed with the drive gear, the bottom of the outside of rotating box is installed with the annular rack that is mutually engaged with drive gear.

[0018] Through the above technical scheme, the servo motor drives the drive gear to rotate, and the drive gear drives the rotating box to stably rotate counterclockwise by a fixed angle through the annular rack.

[0019] The utility model further sets up: the edge position of base bottom evenly is installed with three groups of support frame, and three groups of support frame pass through fixed ring and are fixedly connected with the outside of storage bin.

[0020] Through the above technical scheme, in the process of rotating mechanism, filtering mechanism and connecting mechanism rotation, the support frame helps to improve the stability of the injection mechanism and the circulating mechanism.

[0021] The utility model has the advantages that:

[0022] 1. The utility model discloses a circulation mechanism can be with polyether raw materials in turn into six groups of filter cartridge, through the filter structure inside the filter cartridge realizes to polyether raw materials multilayer step -by -step filtration treatment, guarantees the filtering effect of the device to polyether raw materials, greatly reduces the impurity content in polyether raw materials, and then improves the output of the later extraction polyether polyol.

[0023] 2. The utility model discloses through the rotation mechanism of rotation drives the rotation of filtering mechanism, and then switches injection mechanism and injects polyether raw materials to the inside of next group filter cartridge, and exposes last group filter cartridge at the position of fan -shaped opening, when guaranteeing that the device continuously filters polyether raw materials, can also take out the annular frame in the filter cartridge together with filter screen and clean or replace, and fully guarantees the filtering efficiency of the polyether filtering device. ACCURACY OF DRAWINGS

[0024] Figure 1 It is the first view structure drawing of the utility model;

[0025] Figure 2 It is the second view structure drawing of the utility model;

[0026] Figure 3 It is the three -dimensional schematic diagram of circulation mechanism of the utility model;

[0027] Figure 4 It is the three -dimensional schematic diagram of rotation box of the utility model;

[0028] Figure 5 It is the three -dimensional schematic diagram of filter cartridge and rotation box connection of the utility model;

[0029] Figure 6 It is the first view structure drawing of filter cartridge of the utility model;

[0030] Figure 7 It is the second view structure drawing of filter cartridge of the utility model;

[0031] Figure 8 It is the three -dimensional schematic diagram of annular frame and connecting rod connection of the utility model;

[0032] Figure 9 It is the three -dimensional schematic diagram of connecting mechanism of the utility model;

[0033] Figure 10 It is the first view structure drawing of injection mechanism of the utility model;

[0034] Figure 11 It is the second view structure drawing of injection mechanism of the utility model.

[0035] In the figure: 1, base; 2, support pipe; 3, circulating mechanism; 301, collection box; 302, collection compartment; 303, fixing ring; 304, circulating pump; 305, conveying pipe; 306, discharge pipe; 4, rotating mechanism; 401, rotary bearing; 402, rotating box; 403, separation compartment; 404, feeding port; 405, annular rack; 406, servo motor; 407, driving gear; 5, filtering mechanism; 501, filter cylinder; 502, first material guide hopper; 503, annular frame; 504, connecting rod; 505, filter screen; 6, connecting mechanism; 601, connecting round bin; 602, separation chamber; 603, round through hole; 7, material injection mechanism; 701, storage bin; 702, fan-shaped opening; 703, second material guide hopper; 704, material injection port; 705, mounting groove. DETAILED DESCRIPTION

[0036] The advantages and features of the present application will be more apparent from the following detailed description of preferred embodiments of the present application, taken in conjunction with the accompanying drawings, in which:

[0037] Please refer to Figure 1 - Figure 11 A polyether polyol production polyether filtering device, including a base 1 as an installation carrier, a support pipe 2 is installed at the center position of the top of the base 1, a circulating mechanism 3 is installed at the bottom of the outer side of the support pipe 2, a rotatable rotating mechanism 4 is arranged at the bottom of the outer side of the support pipe 2, and the rotating mechanism 4 is located above the circulating mechanism 3, a filtering mechanism 5 for filtering polyether is installed at the top of the rotating mechanism 4, a rotatable connecting mechanism 6 is sleeved at the top of the outer side of the support pipe 2, a material injection mechanism 7 is installed at the top end of the support pipe 2, the connecting mechanism 6 is located above the filtering mechanism 5, and the material injection mechanism 7 is located above the connecting mechanism 6.

[0038] As Figure 2 - Figure 3 , Figure 5 - Figure 8 and Figure 10 and Figure 11As shown, the bottom end of the support pipe 2 outside is provided with a circulating mechanism 3, and the top end of the support pipe 2 is provided with a feeding mechanism 7; the circulating mechanism 3 comprises a collecting box 301 fixedly installed at the bottom end of the support pipe 2 outside, six groups of collecting compartments 302 are uniformly arranged at a non-central position in the collecting box 301, a fixed ring 303 is installed at the outside of the collecting compartment 302, five groups of circulating pumps 304 are uniformly installed at the top of the fixed ring 303, the input end of the circulating pump 304 is communicated with the inner bottom of an adjacent group of collecting compartments 302, the inner bottom of the remaining group of collecting compartments 302 is provided with a discharge pipe 306, and the output end of the circulating pump 304 is provided with a conveying pipe 305; the feeding mechanism 7 comprises a storage bin 701 fixedly installed at the top end of the support pipe 2, a fan-shaped opening 702 is formed at the outside of the storage bin 701, a second material guide 703 is formed at the inner bottom of the storage bin 701 close to the fan-shaped opening 702, a feeding port 704 is arranged at the top of the storage bin 701, and five groups of installation grooves 705 matched with the output end of the conveying pipe 305 are uniformly formed at the edge position of the bottom of the storage bin 701.

[0039] In use, the polyether raw material is continuously injected into the inside of the storage bin 701 through the feeding port 704, the polyether raw material in the storage bin 701 enters the inside of the first group of filter cylinders 501 through the second material guide 703 and the round through hole 603, after being filtered by the filter screen 505 in the first group of filter cylinders 501, the polyether raw material enters the inside of the first group of collecting compartments 302 through the first material guide 502 and the feeding port 404, and then the polyether raw material in the first group of collecting compartments 302 is conveyed into the second group of separation chambers 602 through the conveying pipe 305 by the circulating pump 304 connected thereto, and then the polyether raw material flows into the inside of the second group of first material guides 502 through the round through hole 603 at the inner bottom of the second group of separation chambers 602, and the process is repeated until the polyether raw material enters the inside of the fifth group of collecting compartments 302, and the discharge pipe 306 is communicated with the inner bottom of the fifth group of collecting compartments 302, so that the polyether raw material in the fifth group is discharged through the discharge pipe 306; when it is necessary to replace the filter screen 505 in the first group of filter cylinders 501, the control driving device drives the rotating box 402 to rotate counterclockwise by 60° each time, the rotating box 402 drives the six groups of filter cylinders 501 and the connecting round bin 601 to synchronously rotate counterclockwise by 60°, so that the first group of filter cylinders 501 is rotated to the position of the fan-shaped opening 702, at this time, the second group of filter cylinders 501 originally replaces the position of the first group of filter cylinders 501, and then the annular frame 503 and the filter screen 505 in the first group of filter cylinders 501 are taken out through the fan-shaped opening 702 and cleaned or replaced.

[0040] The above merely illustrates the embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which are made according to the content of the present application specification and drawings, are also included in the patent protection scope of the present application.

Claims

1. A polyether filtration device for the production of polyether polyols, comprising a base (1) as a mounting carrier, characterized in that: The bottom of the base (1) top center position is provided with a support tube (2), the bottom end of the outer side of the support tube (2) is provided with a circulating mechanism (3), the bottom of the outer side of the support tube (2) is provided with a rotatable rotating mechanism (4), and the rotating mechanism (4) is located above the circulating mechanism (3), the top of the rotating mechanism (4) is provided with a filtering mechanism (5) for filtering polyether, the top of the outer side of the support tube (2) is provided with a rotatable connecting mechanism (6), the top end of the support tube (2) is provided with a feeding mechanism (7), the connecting mechanism (6) is located above the filtering mechanism (5), and the feeding mechanism (7) is located above the connecting mechanism (6).

2. The polyether filtration device for polyether polyol production of claim 1, wherein: The circulating mechanism (3) comprises a collecting box (301) fixedly installed at the bottom end of the outer side of the support tube (2), six groups of collecting compartments (302) are uniformly arranged at the non-central position in the collecting box (301), a fixed ring (303) is installed on the outer side of the collecting compartment (302), five groups of circulating pumps (304) are uniformly installed on the top of the fixed ring (303), the input end of the circulating pump (304) is communicated with the inner bottom of an adjacent group of collecting compartments (302), and the inner bottom of the remaining group of collecting compartments (302) is provided with a discharge pipe (306). The output end of the circulating pump (304) is provided with a conveying pipe (305).

3. The polyether filtration device for polyether polyol production of claim 1, wherein: The rotating mechanism (4) comprises a slewing bearing (401) installed at the top end of the outer side of the collecting box (301), a rotating box (402) is installed on the top of the outer ring of the slewing bearing (401), six groups of separation compartments (403) are uniformly arranged at the non-central position in the rotating box (402), feeding ports (404) are uniformly formed in the top end of the rotating box (402) and communicated with the inner top of the six groups of separation compartments (403), and the top of the fixed ring (303) is provided with a driving device for driving the rotating box (402) to rotate.

4. The polyether filtration device for polyether polyol production of claim 1, wherein: The filtering mechanism (5) comprises a filter cylinder (501) located at the top of the rotating box (402), six groups of filter cylinders (501) are arranged, and the bottom ends of the six groups of filter cylinders (501) are uniformly distributed at the non-central position on the top of the rotating box (402). A first material guide hopper (502) is installed at the inner bottom of the filter cylinder (501) and communicated with the feeding port (404), a plurality of groups of annular frames (503) are uniformly arranged in the filter cylinder (501), and the plurality of groups of annular frames (503) are fixedly connected through connecting rods (504). A filter screen (505) for filtering polyether is installed in the annular frame (503).

5. The polyether filtration device for polyether polyol production of claim 1, wherein: The connecting mechanism (6) comprises a connecting circular compartment (601) sleeved on the top of the outer side of the support tube (2), the bottom end of the connecting circular compartment (601) is fixedly connected with the top of the six groups of filter cylinders (501), and the inner bottom of the connecting circular compartment (601) is provided with six groups of separation chambers (602). A circular through hole (603) is formed in the inner bottom of the separation chamber (602) and communicated with the inner top of the filter cylinder (501).

6. The polyether filtration device for polyether polyol production of claim 1, wherein: The injection mechanism (7) comprises a storage bin (701) fixedly installed at the top end of the support pipe (2), a sector-shaped opening (702) is formed in the outer side of the storage bin (701), a second material guide hopper (703) is formed in the inner bottom of the storage bin (701) and close to the position of the sector-shaped opening (702), an injection port (704) is arranged at the top of the storage bin (701), and five groups of installation grooves (705) matched with the output ends of the conveying pipes (305) are uniformly formed in the edge positions of the bottom of the storage bin (701).

7. The polyether filtration device for polyether polyol production of claim 3, wherein: The driving device comprises a servo motor (406) for providing driving force, the servo motor (406) is located at the top of the fixed ring (303), a driving gear (407) is installed at the output end of the servo motor (406), and an annular rack (405) is installed at the bottom end of the outer side of the rotating box (402) and is meshed with the driving gear (407).

8. The polyether filtration device for polyether polyol production of claim 1, wherein: Three groups of support frames are uniformly installed at the edge positions of the bottom of the base (1), the three groups of support frames pass through the fixed ring (303) and are fixedly connected with the outer side of the storage bin (701).

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