High-yield environment-friendly polyether polyol production device

Abstract

The utility model discloses a high-yield environment-friendly polyether polyol production device which comprises a reaction kettle, one side of the surface of the reaction kettle is fixedly connected with a discharge end, one end of the discharge end is provided with an anti-blocking component, the other end of the anti-blocking component is fixedly connected with a screw vacuum pump, and the anti-blocking component is used for preventing the screw vacuum pump from being blocked. Through the design of the reaction kettle, the discharging end, the anti-blocking assembly, the screw vacuum pump, the first connecting pipe, the condensation assembly and the second connecting pipe, when the device is used, the situation that the screw vacuum pump is blocked when polyether polyol is produced and cooled, so that the screw vacuum pump is not easy to clean is prevented, and the service life of the device is prolonged. The screw vacuum pump is used for controlling the polyether polyol to be conveyed in the first connecting pipe, the condensation assembly and the second connecting pipe, the cooling assembly can cool the newly produced polyether polyol, and finally the polyether polyol returns to the reaction kettle from the interior of the second connecting pipe; and the effect of improving the production efficiency of the polyether polyol is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of polyether polyol production, and particularly relates to a high-yield, environment-friendly polyether polyol production device. Background Art

[0002] Polyether polyol (abbreviated as polyether) is an organic polymer, which is obtained by polyaddition reaction of initiator (compound containing active hydrogen group) with ethylene oxide (EO), propylene oxide (PO) and butylene oxide (BO) in the presence of catalyst. The polyether with the largest output is produced by using glycerol (propylene glycol) 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 and the feeding order, various general-purpose polyether polyols are produced.

[0003] The problems with the existing technology are: polyether polyols are prone to blockage of the delivery pipeline during production, and are difficult to clean up. In addition, the condenser on the traditional device is not convenient to disassemble and repair after being damaged, so the traditional device can no longer meet people's daily work needs. Therefore, we propose a high-yield and environmentally friendly polyether polyol production device. Utility Model Content

[0004] The utility model aims to provide a high-yield, environment-friendly polyether polyol production device to solve the problems raised in the above-mentioned background technology.

[0005] The utility model is implemented as follows: a high-yield, environment-friendly polyether polyol production device comprises a reactor, a discharge end is fixedly connected to one side of the reactor surface, an anti-blocking component is arranged at one end of the discharge end, a screw vacuum pump is fixedly connected to the other end of the anti-blocking component, the anti-blocking component is used to prevent the screw vacuum pump from being blocked, a first connecting pipe is fixedly connected to the other end of the screw vacuum pump, a condensing component is arranged at one end of the first connecting pipe, and a second connecting pipe is fixedly connected between the condensing component and the reactor.

[0006] As a preferred embodiment of the present invention, the anti-blocking component includes a threaded shell, the threaded shell is threadedly connected to the surface of the discharge end, and a connecting barrel is movably connected inside the threaded shell.

[0007] As a preferred embodiment of the utility model, a mounting pipe is fixedly connected to one end of the connecting barrel, the mounting pipe is communicated with the connecting barrel, and a filter shell is fixedly connected inside the connecting barrel.

[0008] As a preferred embodiment of the utility model, two groups of sealing sleeves are commonly provided between the threaded shell and the discharge end, hinges are commonly provided between one ends of the two groups of sealing sleeves, and screws are commonly threadedly connected between the other ends of the two groups of sealing sleeves.

[0009] As a preferred embodiment of the present invention, the condensing component includes a fixed shell, which is fixedly connected between the first connecting pipe and the second connecting pipe, and connecting shells are fixedly connected on both sides of the inner wall of the fixed shell, and the first connecting pipe, the second connecting pipe and the connecting shell are all connected.

[0010] As a preferred embodiment of the utility model, a condenser is detachably connected in the fixed shell, telescopic tubes are provided on both sides of the condenser, fixed tubes corresponding to the telescopic tubes are fixedly connected to one side of the two groups of connecting shells, and push blocks are fixedly connected to the surfaces of the two groups of telescopic tubes.

[0011] As a preferred embodiment of the utility model, a positioning rod is movably connected between the fixed shell and the condenser, and a spring is fixedly connected between the positioning rod and the fixed shell.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model prevents the polyether polyol from clogging the screw vacuum pump when it is produced and cooled, thereby preventing the polyether polyol from being difficult to clean, through the design of the reactor, the discharge end, the anti-blocking component, the screw vacuum pump, the first connecting pipe, the condensing component and the second connecting pipe. The screw vacuum pump is used to control the polyether polyol to be transported in the first connecting pipe, the condensing component and the second connecting pipe. The cooling component can cool the polyether polyol just produced. Finally, the polyether polyol will return to the reactor from the inside of the second connecting pipe. The use of the screw vacuum pump generates less sewage and no water contact. The condensed gas is pure nitrogen with a high yield. It can also reduce energy consumption by about 15%, thereby achieving the effect of improving the production efficiency of the polyether polyol.

[0014] 2. The utility model adopts the design of the installation pipe, the connection barrel, the filter shell, the threaded shell, the hinge, the sealing sleeve and the screw. When it is necessary to clean the impurities inside the anti-blocking component, the screws are removed from the two sets of sealing sleeves, and then the sealing sleeves are rotated by the hinge to remove them from the surface of the threaded shell. Then, the threaded shell is rotated to remove it from the discharge end, and then the impurities in the filter shell can be poured out, thereby achieving the effect of effectively preventing the impurities from clogging the screw vacuum pump in the production of polyether polyols.

[0015] 3. The utility model adopts the design of a fixed shell, a condenser, a connecting shell, a fixed tube, a push block, a telescopic tube, a spring and a positioning rod. The condensation assembly is used for cooling polyether polyols. However, when the condenser is installed again after maintenance, the push block is pushed to drive the two sets of telescopic tubes to be extended and retracted. When the condenser is installed at a suitable position inside the fixed shell, the telescopic tube will pop out and be plugged into the fixed tube to connect with the connecting shell. Then the spring will pull the positioning rod to position it inside the condenser, fixing the position of the condenser, thereby achieving the effect of facilitating the installation, disassembly and maintenance of the condenser. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of a reaction kettle provided in an embodiment of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure of the condensing assembly provided by the embodiment of the utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the anti-blocking component provided in an embodiment of the utility model.

[0019] In the figure: 1. Reactor; 2. Discharge end; 3. Anti-blocking assembly; 301. Mounting pipe; 302. Connecting barrel; 303. Filter shell; 304. Threaded shell; 305. Hinge; 306. Sealing sleeve; 307. Screw; 4. Screw vacuum pump; 5. First connecting pipe; 6. Condensation assembly; 601. Fixed shell; 602. Condenser; 603. Connecting shell; 604. Fixed pipe; 605. Push block; 606. Telescopic tube; 607. Spring; 608. Positioning rod; 7. Second connecting pipe. DETAILED DESCRIPTION

[0020] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0021] The structure of the utility model is described in detail below in conjunction with the accompanying drawings.

[0022] like Figures 1 to 3 As shown, a high-yield, environment-friendly polyether polyol production device provided by an embodiment of the utility model comprises a reactor 1, a discharge end 2 is fixedly connected to one side of the surface of the reactor 1, an anti-blocking component 3 is provided at one end of the discharge end 2, a screw vacuum pump 4 is fixedly connected to the other end of the anti-blocking component 3, the anti-blocking component 3 is used to prevent the screw vacuum pump 4 from being blocked, a first connecting pipe 5 is fixedly connected to the other end of the screw vacuum pump 4, a condensation component 6 is provided at one end of the first connecting pipe 5, and a second connecting pipe 7 is fixedly connected between the condensation component 6 and the reactor 1.

[0023] The above scheme is adopted: through the design of the reactor 1, the discharge end 2, the anti-blocking component 3, the screw vacuum pump 4, the first connecting pipe 5, the condensation component 6 and the second connecting pipe 7, when in use, the polyether polyol is prevented from clogging the screw vacuum pump 4 when being produced and cooled, thereby causing a situation that is difficult to clean, and the screw vacuum pump 4 is used to control the polyether polyol to be transported in the first connecting pipe 5, the condensation component 6 and the second connecting pipe 7, the cooling component can cool the polyether polyol just produced, and finally the polyether polyol will return to the reactor 1 from the inside of the second connecting pipe 7, the use of the screw vacuum pump 4 generates less sewage, there is no water contact, and the condensed gas is pure nitrogen, the yield is high, and the energy consumption can be reduced by about 15%, thereby achieving the effect of improving the production efficiency of the polyether polyol.

[0024] refer to Figure 3 The anti-blocking component 3 includes a threaded shell 304, which is threadedly connected to the surface of the discharge end 2, and a connecting barrel 302 is movably connected inside the threaded shell 304; a mounting pipe 301 is fixedly connected to one end of the connecting barrel 302, and the mounting pipe 301 is communicated with the connecting barrel 302, and a filter shell 303 is fixedly connected inside the connecting barrel 302; two groups of sealing sleeves 306 are commonly provided between the threaded shell 304 and the discharge end 2, a hinge 305 is commonly provided between one ends of the two groups of sealing sleeves 306, and screws 307 are commonly threadedly connected between the other ends of the two groups of sealing sleeves 306.

[0025] The above scheme is adopted: through the design of the installation tube 301, the connecting barrel 302, the filter shell 303, the threaded shell 304, the hinge 305, the sealing sleeve 306 and the screw 307, when it is necessary to clean the impurities inside the anti-blocking component 3, the screw 307 is removed from the two sets of sealing sleeves 306, and then the sealing sleeve 306 is rotated by the hinge 305 to remove it from the surface of the threaded shell 304, and then the threaded shell 304 is rotated to remove the threaded shell 304 from the discharge end 2, and then the impurities in the filter shell 303 are poured out, thereby achieving the effect of effectively preventing impurities from clogging the screw vacuum pump 4 at the production site of polyether polyols.

[0026] refer to Figure 2The condensing component 6 includes a fixed shell 601, which is fixedly connected between the first connecting pipe 5 and the second connecting pipe 7. Both sides of the inner wall of the fixed shell 601 are fixedly connected with connecting shells 603, and the first connecting pipe 5 and the second connecting pipe 7 are connected to the connecting shell 603. The fixed shell 601 is detachably connected with a condenser 602, and telescopic tubes 606 are arranged on both sides of the condenser 602. One side of the two groups of connecting shells 603 is fixedly connected with a fixed tube 604 corresponding to the telescopic tube 606, and the surfaces of the two groups of telescopic tubes 606 are fixedly connected with a push block 605; a positioning rod 608 is movably connected between the fixed shell 601 and the condenser 602, and a spring 607 is fixedly connected between the positioning rod 608 and the fixed shell 601.

[0027] The above scheme is adopted: through the design of fixed shell 601, condenser 602, connecting shell 603, fixed tube 604, push block 605, telescopic tube 606, spring 607 and positioning rod 608, the condensation assembly 6 is used to cool the polyether polyol, but when the condenser 602 is installed again after maintenance, the push block 605 is pushed to drive the two sets of telescopic tubes 606 to extend and retract. When the condenser 602 is installed at a suitable position inside the fixed shell 601, the telescopic tube 606 will pop out and be plugged into the fixed tube 604 to connect with the connecting shell 603. Then the spring 607 will pull the positioning rod 608 to position it inside the condenser 602, fix the position of the condenser 602, and achieve the effect of facilitating the installation, disassembly and maintenance of the condenser 602.

[0028] The working principle of this utility model:

[0029] During use, when it is necessary to clean the impurities inside the anti-blocking component 3, the screws 307 are removed from the two sets of sealing sleeves 306, and then the sealing sleeves 306 are rotated by the hinge 305 to remove them from the surface of the threaded shell 304, and then the threaded shell 304 is rotated to remove the threaded shell 304 from the discharge end 2, and then the impurities in the filter shell 303 are poured out. The condensation component 6 is used to cool the polyether polyol, but when the condenser 602 is repaired and installed again, the push block 605 is pushed to drive the two sets of telescopic tubes 606 to telescope. When the condenser 602 is installed in a suitable position inside the fixed shell 601, the telescopic tube 606 will pop out and be plugged into the fixed tube 604 to connect with the connecting shell 603, and then the spring 607 will pull the positioning rod 608 to position inside the condenser 602 to fix the position of the condenser 602.

[0030] In summary: this high-yield, environmentally friendly polyether polyol production device, through the structure of condensation assembly 6, fixed shell 601, condenser 602, connecting shell 603, fixed tube 604, push block 605, telescopic tube 606, spring 607 and positioning rod 608, solves the problem that the delivery pipeline is easily blocked during the production of polyether polyol, and it is troublesome to clean up. In addition, the condenser on the traditional device is not convenient to disassemble and repair after being damaged, so the traditional device can no longer meet people's daily work needs.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-yield, environmentally friendly polyether polyol production device, comprising a reaction kettle (1), characterized in that: A discharge end (2) is fixedly connected to one side of the surface of the reactor (1); an anti-blocking component (3) is provided at one end of the discharge end (2); a screw vacuum pump (4) is fixedly connected to the other end of the anti-blocking component (3); the anti-blocking component (3) is used to prevent the screw vacuum pump (4) from being blocked; a first connecting pipe (5) is fixedly connected to the other end of the screw vacuum pump (4); a condensing component (6) is provided at one end of the first connecting pipe (5); a second connecting pipe (7) is fixedly connected between the condensing component (6) and the reactor (1).

2. A high-yield, environmentally friendly polyether polyol production device as claimed in claim 1, characterized in that: The anti-blocking component (3) comprises a threaded shell (304), the threaded shell (304) is threadedly connected to the surface of the discharge end (2), and a connecting barrel (302) is movably connected inside the threaded shell (304).

3. A high-yield, environmentally friendly polyether polyol production device as claimed in claim 2, characterized in that: One end of the connection barrel (302) is fixedly connected to a mounting pipe (301), the mounting pipe (301) is in communication with the connection barrel (302), and a filter housing (303) is fixedly connected inside the connection barrel (302).

4. A high-yield, environmentally friendly polyether polyol production device as claimed in claim 2, characterized in that: Two groups of sealing sleeves (306) are commonly provided between the threaded shell (304) and the discharge end (2), hinges (305) are commonly provided between one ends of the two groups of sealing sleeves (306), and screws (307) are commonly threadedly connected between the other ends of the two groups of sealing sleeves (306).

5. A high-yield, environmentally friendly polyether polyol production device as claimed in claim 1, characterized in that: The condensation component (6) comprises a fixed shell (601), wherein the fixed shell (601) is fixedly connected between the first connecting pipe (5) and the second connecting pipe (7), and connecting shells (603) are fixedly connected to both sides of the inner wall of the fixed shell (601), and the first connecting pipe (5) and the second connecting pipe (7) are connected to the connecting shell (603).

6. A high-yield, environmentally friendly polyether polyol production device as claimed in claim 5, characterized in that: The fixed shell (601) is detachably connected to a condenser (602), and telescopic tubes (606) are provided on both sides of the condenser (602). One side of the two groups of connecting shells (603) is fixedly connected to a fixed tube (604) corresponding to the telescopic tube (606), and the surfaces of the two groups of telescopic tubes (606) are fixedly connected to push blocks (605).

7. A high-yield, environmentally friendly polyether polyol production device as claimed in claim 5, characterized in that: A positioning rod (608) is movably connected between the fixed shell (601) and the condenser (602), and a spring (607) is fixedly connected between the positioning rod (608) and the fixed shell (601).

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