Raw material mixing device for flame-retardant polyether polyol production

Abstract

The utility model discloses a raw material mixing device for producing flame-retardant polyether polyol, and relates to the technical field of mixing devices. The device comprises a hopper, and a rotating mechanism and a configuration mechanism which are arranged on the hopper. By arranging the rotating mechanism, during use, raw materials needing to be added can be put into the hopper according to a certain proportion, then the first motor is started, the first motor can drive the rotating shaft, the first stirring roller, the auger blade and the valve rotating disc to rotate synchronously, meanwhile, when the first stirring roller rotates, the stirring roller rotates, and the stirring roller rotates synchronously. According to the feeding device, caking in raw materials can be scattered, blockage of the discharging port is effectively prevented, the scattered raw materials can be evenly conveyed when the auger blades rotate, the possibility of blockage of the discharging port is further reduced, meanwhile, the valve rotating disc can be matched with the discharging funnel in the hopper when rotating, and therefore blockage of the discharging port is avoided. Therefore, the discharging funnel can intermittently discharge the raw materials into the tank body for mixing.

Description

Technical Field

[0001] The utility model belongs to the technical field of mixing devices, in particular to a raw material mixing device for producing flame-retardant polyether polyols. Background Art

[0002] The raw material mixing device for the production of flame-retardant polyether polyols is a key equipment specially designed for the production process of flame-retardant polyether polyols. Its main function is to fully and evenly mix the various raw materials used to manufacture flame-retardant polyether polyols, such as basic polyols, flame retardants, catalysts, additives, etc., in precise proportions and a specific order. This device needs to have a high degree of precision control performance to ensure that the addition amount of each raw material is accurate, thereby ensuring that the final flame-retardant polyether polyols produced have stable and excellent flame retardant properties, chemical properties and physical properties.

[0003] The existing raw material mixing device specially used for the production of polyether polyols has an extremely prominent and non-negligible problem in the actual operation process of adding multiple raw materials. That is, among these multiple raw materials, there are often some hard agglomerates. If these hard agglomerates are not handled, they will continue to accumulate during the transportation of raw materials and eventually clog the hopper. Once the hopper is clogged, the entire production process has to be forced to stop, which seriously interferes with the normal production order and leads to a significant reduction in work efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a raw material mixing device for the production of flame-retardant polyether polyols, which solves an extremely prominent and non-negligible problem in the actual specific operation process of adding multiple raw materials, that is, among these multiple raw materials, there are often some hard agglomerates. If these hard agglomerates are not processed, they will continue to accumulate during the transportation of the raw materials and eventually clog the hopper. Once the hopper is clogged, the entire production process will be forced to stop, which seriously interferes with the normal production order and leads to a significant reduction in work efficiency.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The utility model is a raw material mixing device for producing flame-retardant polyether polyol, comprising a hopper and a rotating mechanism and a configuration mechanism arranged on the hopper;

[0007] The rotating mechanism includes a support frame 1 fixedly connected to the inner wall of the hopper, a motor 1 is fixedly connected to the interior of the support frame 1, a discharge funnel is fixedly connected to the interior of the hopper, a rotating shaft is fixedly connected to the output shaft of the motor 1, the rotating shaft passes through the discharge funnel and is rotatably connected to the discharge funnel, a valve turntable is fixedly sleeved on the outer wall of the rotating shaft, the valve turntable is adapted to the discharge funnel, a stirring roller 1 is fixedly sleeved on the outer wall of the rotating shaft, and an auger blade is fixedly sleeved on the outer wall of the rotating shaft.

[0008] Furthermore, the configuration mechanism includes a tank body arranged at the bottom of the hopper, the bottom of the hopper extends into the tank body, a hoop 1 is fixedly connected to the outer wall of the tank body, a motor 2 is fixedly connected to the inside of the hoop 1, a threaded rod is fixedly connected to the output shaft of the motor 2, the bottom end of the threaded rod extends into the tank body and is rotatably connected to the tank body, a stirring roller 2 is threadedly sleeved on the outer wall of the threaded rod, and the stirring roller 2 is adapted to the tank body.

[0009] Furthermore, a second support frame is fixedly sleeved on the outer wall of the threaded rod, and a plurality of scrapers are fixedly connected to the second support frame, and the plurality of scrapers are in contact with the inner wall of the tank body.

[0010] Furthermore, an installation groove is provided on the outer wall of the tank body, a pressure tube is fixedly connected to the inside of the installation groove, the pressure tube is communicated with the tank body, a sealing ring is fixedly connected to the inner wall of the pressure tube, a support frame three is fixedly connected to the inner wall of the pressure tube, a sliding rod is slidably connected to the support frame three, a piston is fixedly connected to the bottom end of the sliding rod, and the piston is adapted to the sealing ring.

[0011] Furthermore, a spring 1 is wound on the outer wall of the slide rod, one end of the spring 1 is fixedly connected to the piston, and the other end of the spring 1 is fixedly connected to the support frame 3.

[0012] Furthermore, a hoop 2 is fixedly sleeved on the outer wall of the tank body, a plurality of dampers are fixedly connected to the bottom of the hoop 2, and a plurality of supporting legs are fixedly connected to the bottom ends of the plurality of dampers.

[0013] Furthermore, a spring 2 is wound around the outer wall of several of the dampers, one end of several of the springs 2 is fixedly connected to the hoop 2, and the other end of several of the springs 2 is fixedly connected to several supporting legs.

[0014] Furthermore, a discharge pipe is fixedly connected to the outer wall of the hopper, the discharge pipe is communicated with the tank body, the discharge pipe is rotatably connected to a rotating rod inside, the left and right ends of the rotating rod extend to the outside of the discharge pipe, a valve is fixedly sleeved on the outer wall of the rotating rod, the valve is adapted to the discharge pipe, and a turntable is fixedly connected to the right side of the rotating rod.

[0015] The utility model has the following beneficial effects:

[0016] (1) The utility model is provided with a rotating mechanism. When in use, the raw materials to be added can be put into the hopper according to a certain proportion. Next, the motor 1 is started, and the motor 1 will drive the rotating shaft, the stirring roller 1, the auger blades and the valve turntable to rotate synchronously. At the same time, when the stirring roller 1 rotates, it can break up the lumps in the raw materials, effectively preventing the discharge port from being blocked. Moreover, when the auger blades rotate, they can evenly transport the broken up raw materials, further reducing the possibility of blocking the discharge port. At the same time, when the valve turntable rotates, it will cooperate with the discharge funnel in the hopper, so that the discharge funnel can intermittently discharge the raw materials into the tank body for mixing. This setting is helpful to prevent the hard lumps in the raw materials from blocking the discharge port, thereby improving work efficiency.

[0017] (2) The utility model sets up a configuration mechanism. When the raw materials in the tank body are being stirred, if the pressure in the tank body is too high due to various factors, the huge pressure generated inside the tank body will push the piston and the slide rod on the piston to slide upward in the support frame 3. In this process, the spring 1 on the outer wall of the slide rod will be compressed at the same time. In this way, the pressure in the tank body can be smoothly discharged from the position where the piston is removed, thereby effectively avoiding the dangerous situation that may be caused by the excessive pressure in the tank. When the pressure in the tank body gradually reaches equilibrium, the piston will reset under the elastic thrust of the spring 1 and return to the initial position, so that the tank body can be re-sealed and restored to its normal working state. This setting is conducive to ensuring the safety and stability of the production process.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the rotating mechanism of the utility model;

[0022] Figure 3 This is a schematic diagram of the configuration mechanism structure of the utility model;

[0023] Figure 4 For this utility model Figure 2 A partial enlarged schematic diagram;

[0024] Figure 5 For this utility model Figure 3 A partial enlarged schematic diagram of B in the figure.

[0025] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0026] Hopper; 2. Rotating mechanism; 3. Configuration mechanism; 21. Support frame 1; 22. Motor 1; 23. Discharge funnel; 24. Rotating shaft; 25. Valve turntable; 26. Stirring roller 1; 27. Auger blade; 31. Tank body; 32. Hoop 1; 33. Motor 2; 34. Threaded rod; 35. Stirring roller 2; 36. Support frame 2; 37. Scraper; 38. Mounting groove; 39. Pressure pipe; 391. Sealing ring; 392. Support frame 3; 393. Sliding rod; 394. Piston; 395. Spring 1; 396. Hoop 2; 397. Damper; 398. Support foot; 399. Spring 2; 3991. Discharge pipe; 3992. Rotating rod; 3993. Valve; 3994. Turntable. DETAILED DESCRIPTION

[0027] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figure 1-5 As shown, the utility model is a raw material mixing device for producing flame-retardant polyether polyols, comprising a hopper 1 and a rotating mechanism 2 and a configuration mechanism 3 provided on the hopper 1;

[0029] The rotating mechanism 2 includes a support frame 21 fixedly connected to the inner wall of the hopper 1, a motor 22 is fixedly connected to the interior of the support frame 21, a discharge funnel 23 is fixedly connected to the interior of the hopper 1, a rotating shaft 24 is fixedly connected to the output shaft of the motor 22, the rotating shaft 24 passes through the discharge funnel 23 and is rotatably connected to the discharge funnel 23, a valve turntable 25 is fixedly sleeved on the outer wall of the rotating shaft 24, the valve turntable 25 is adapted to the discharge funnel 23, a stirring roller 26 is fixedly sleeved on the outer wall of the rotating shaft 24, and an auger blade 27 is fixedly sleeved on the outer wall of the rotating shaft 24.

[0030] The configuration mechanism 3 includes a tank body 31 arranged at the bottom of the hopper 1, the bottom of the hopper 1 extends into the tank body 31, a hoop 1 32 is fixedly connected to the outer wall of the tank body 31, a motor 2 33 is fixedly connected to the inside of the hoop 1 32, a threaded rod 34 is fixedly connected to the output shaft of the motor 2 33, the bottom end of the threaded rod 34 extends into the tank body 31 and is rotatably connected to the tank body 31, a stirring roller 2 35 is threadedly sleeved on the outer wall of the threaded rod 34, and the stirring roller 2 35 is adapted to the tank body 31.

[0031] By starting the second motor 33, the second motor 33 will drive the threaded rod 34 and the second support frame 36 to rotate synchronously. At the same time, when the threaded rod 34 rotates, it will rotate and drive the second stirring roller 35 thereon to evenly mix the various raw materials.

[0032] A second support frame 36 is fixedly sleeved on the outer wall of the threaded rod 34 , and a plurality of scrapers 37 are fixedly connected to the second support frame 36 . The plurality of scrapers 37 are in contact with the inner wall of the tank body 31 .

[0033] When the second support frame 36 rotates, it drives the multiple scrapers 37 thereon to scrape off the raw materials adhered to the inner wall of the tank body 31.

[0034] A mounting groove 38 is provided on the outer wall of the tank body 31, and a pressure tube 39 is fixedly connected to the inside of the mounting groove 38. The pressure tube 39 is communicated with the tank body 31. A sealing ring 391 is fixedly connected to the inner wall of the pressure tube 39. A support frame 392 is fixedly connected to the inner wall of the pressure tube 39. A slide rod 393 is slidably connected to the support frame 392. A piston 394 is fixedly connected to the bottom end of the slide rod 393, and the piston 394 is adapted to the sealing ring 391.

[0035] When the raw materials in the tank body 31 are being stirred, if the pressure inside the tank body 31 becomes too high due to various factors, the huge pressure generated inside the tank body 31 will push the piston 394 and the slide rod 393 on the piston 394 to slide upward in the support frame 392. In this process, the spring 1 395 on the outer wall of the slide rod 393 will be compressed at the same time. In this way, the pressure in the tank body 31 can be smoothly discharged from the position where the piston 394 is removed.

[0036] A spring 395 is wound around the outer wall of the slide rod 393 , one end of the spring 395 is fixedly connected to the piston 394 , and the other end of the spring 395 is fixedly connected to the support frame 3 392 .

[0037] When the pressure in the tank body 31 gradually reaches equilibrium, the piston 394 will reset under the elastic thrust of the spring 1 395 and return to its initial position, so that the tank body 31 can be sealed again and its normal working state can be restored. This setting is conducive to ensuring the safety and stability of the production process.

[0038] A second hoop 396 is fixedly sleeved on the outer wall of the tank body 31 , and a plurality of dampers 397 are fixedly connected to the bottom of the second hoop 396 , and a plurality of supporting legs 398 are fixedly connected to the bottom ends of the plurality of dampers 397 .

[0039] When the tank body 31 is subjected to vibration, the tank body 31 will transmit these vibrations to the multiple dampers 397. At this time, the multiple dampers 397 will cooperate with the hoop 2 396 and the support leg 398 to perform compression action together. Through this compression action of the damper 397, the vibration transmitted from the tank body 31 can be very effectively released.

[0040] Springs 2 399 are wound around the outer walls of the plurality of dampers 397 , one end of the plurality of springs 2 399 is fixedly connected to the hoop 2 396 , and the other end of the plurality of springs 2 399 is fixedly connected to the plurality of legs 398 .

[0041] The damper 397 can drive the device thereon to return to its initial state through the spring 2 399 on the outer wall of the damper 397. Through this arrangement, the interference of vibration on the internal parts of the device can be reduced to a great extent.

[0042] A discharge pipe 3991 is fixedly connected to the outer wall of the hopper 1, and the discharge pipe 3991 is communicated with the tank body 31. The discharge pipe 3991 is internally rotatably connected to a rotating rod 3992. The left and right ends of the rotating rod 3992 extend to the outside of the discharge pipe 3991. A valve 3993 is fixedly sleeved on the outer wall of the rotating rod 3992. The valve 3993 is adapted to the discharge pipe 3991. A turntable 3994 is fixedly connected to the right side of the rotating rod 3992.

[0043] By rotating the turntable 3994 , the turntable 3994 can drive the rotating rod 3992 and the valve 3993 on the rotating rod 3992 to rotate, thereby opening the discharge pipe 3991 to facilitate the discharge of the raw materials in the tank body 31 .

[0044] Flame-retardant polyether polyols are a special type of polyether polyol that imparts long-lasting flame retardancy by incorporating flame-retardant elements into the polymer. In modern industry and construction, they are widely used in the production of products such as polyurethane foam that must meet strict flame-retardant standards. Flame-retardant polyether polyols are typically halogenated polyether polyols with a bromine content of approximately 31.5%, a chlorine content of approximately 6.9%, and a hydroxyl value of approximately 330 mgKOH / g. The addition of these chemicals ensures that the polyether polyol not only maintains its original structural stability and adhesion but also exhibits excellent flame retardancy. With a medium viscosity of approximately 7000 mPa.s at 25°C, this type of polyether polyol exhibits good compatibility with polyether and polyester polyols, resulting in good processing properties when mixed with other components. Flame-retardant elements such as phosphorus, halogens, antimony, and nitrogen are chemically bonded to the polymer chain, providing a long-lasting flame retardant effect.

[0045] A specific application of this embodiment is: when in use, the raw materials to be added can be put into the hopper 1 according to a certain proportion. Next, the motor 1 22 is started. The motor 1 22 will drive the rotating shaft 24, the stirring roller 1 26, the auger blade 27 and the valve turntable 25 to rotate synchronously. At the same time, when the stirring roller 1 26 rotates, it can break up the lumps in the raw materials, effectively preventing the discharge port from being blocked. Moreover, when the auger blade 27 rotates, it can evenly transport the broken up raw materials, further reducing the possibility of blocking the discharge port. At the same time, when the valve turntable 25 rotates, it will cooperate with the discharge funnel 23 in the hopper 1, so that the discharge funnel 23 can The raw materials are intermittently discharged into the tank body 31 for mixing. This arrangement is conducive to preventing hard lumps in the raw materials from clogging the discharge port, thereby improving work efficiency. When it is necessary to mix the various raw materials in the tank body 31, the motor 2 33 can be started. The motor 2 33 will drive the threaded rod 34 and the support frame 2 36 to rotate synchronously. At the same time, when the threaded rod 34 rotates, it will rotate and drive the stirring roller 2 35 thereon to evenly mix the various raw materials. At the same time, when the support frame 2 36 rotates, it will drive the multiple scrapers 37 thereon to scrape off the raw materials adhering to the inner wall of the tank body 31. In the specific process of mixing and stirring the various raw materials, since the stirring action is carried out continuously, the tank body 31 cannot be To avoid vibration, these vibrations will be transmitted to multiple dampers 397. At this time, multiple dampers 397 will cooperate with hoop 2 396 and support leg 398 to perform compression action together. Through this compression action of damper 397, the vibration transmitted from tank body 31 can be released very effectively. At the same time, spring 2 399 on the outer wall of damper 397 can play a role and restore it to its initial state. Through this setting, the interference of vibration on internal parts of the device can be greatly reduced. When the raw materials in tank body 31 are in the process of stirring, due to various factors, the pressure in tank body 31 is too high, and the huge pressure generated inside tank body 31 will push the active The plug 394 and the slide bar 393 on the piston 394 slide upward in the support frame 392. During this process, the spring 1 395 on the outer wall of the slide bar 393 is compressed at the same time. In this way, the pressure in the tank body 31 can be smoothly discharged from the position where the piston 394 is removed, thereby effectively avoiding the dangerous situation caused by excessive pressure in the tank. When the pressure in the tank body 31 gradually reaches equilibrium, the piston 394 will reset under the elastic thrust of the spring 1 395 and return to its initial position, thereby re-sealing the tank body 31 and restoring its normal working state. This arrangement is conducive to ensuring the safety and stability of the production process.When the raw materials in the tank body (31) need to be discharged, the turntable (3994) can be manually turned, and the turntable (3994) will drive the rotating rod (3992) and the valve (3993) on the rotating rod (3992) to rotate, thereby opening the discharge pipe (3991) so that the raw materials in the tank body (31) can be discharged.

[0046] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0047] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A raw material mixing device for producing flame-retardant polyether polyols, comprising a hopper (1), a rotating mechanism (2) and a configuration mechanism (3) arranged on the hopper (1); The rotating mechanism (2) includes a support frame (21) fixedly connected to the inner wall of the hopper (1), a motor (22) fixedly connected to the interior of the support frame (21), a discharge funnel (23) fixedly connected to the interior of the hopper (1), a rotating shaft (24) fixedly connected to the output shaft of the motor (22), the rotating shaft (24) passes through the discharge funnel (23) and is rotatably connected to the discharge funnel (23), a valve turntable (25) is fixedly sleeved on the outer wall of the rotating shaft (24), the valve turntable (25) is adapted to the discharge funnel (23), a stirring roller (26) is fixedly sleeved on the outer wall of the rotating shaft (24), and an auger blade (27) is fixedly sleeved on the outer wall of the rotating shaft (24).

2. A raw material mixing device for producing flame-retardant polyether polyols according to claim 1, characterized in that: The configuration mechanism (3) comprises a tank body (31) arranged at the bottom of the hopper (1), the bottom of the hopper (1) extends into the tank body (31), a hoop (32) is fixedly connected to the outer wall of the tank body (31), a motor (33) is fixedly connected inside the hoop (32), a threaded rod (34) is fixedly connected to the output shaft of the motor (33), the bottom end of the threaded rod (34) extends into the tank body (31) and is rotatably connected to the tank body (31), a stirring roller (35) is threadedly sleeved on the outer wall of the threaded rod (34), and the stirring roller (35) is adapted to the tank body (31).

3. A raw material mixing device for producing flame-retardant polyether polyol according to claim 2, characterized in that: A second support frame (36) is fixedly sleeved on the outer wall of the threaded rod (34), and a plurality of scrapers (37) are fixedly connected to the second support frame (36), and the plurality of scrapers (37) are in contact with the inner wall of the tank body (31).

4. A raw material mixing device for producing flame-retardant polyether polyol according to claim 3, characterized in that: The outer wall of the tank body (31) is provided with a mounting groove (38), the interior of the mounting groove (38) is fixedly connected to a pressure tube (39), the pressure tube (39) is communicated with the tank body (31), the inner wall of the pressure tube (39) is fixedly connected to a sealing ring (391), the inner wall of the pressure tube (39) is fixedly connected to a support frame three (392), the support frame three (392) is slidably connected to a slide rod (393), the bottom end of the slide rod (393) is fixedly connected to a piston (394), and the piston (394) is adapted to the sealing ring (391).

5. The raw material mixing device for producing flame-retardant polyether polyol according to claim 4, characterized in that: A spring 1 (395) is wound around the outer wall of the slide rod (393), one end of the spring 1 (395) is fixedly connected to the piston (394), and the other end of the spring 1 (395) is fixedly connected to the support frame 3 (392).

6. A raw material mixing device for producing flame-retardant polyether polyol according to claim 5, characterized in that: A second hoop (396) is fixedly sleeved on the outer wall of the tank body (31), a plurality of dampers (397) are fixedly connected to the bottom of the second hoop (396), and a plurality of support legs (398) are fixedly connected to the bottom ends of the plurality of dampers (397).

7. A raw material mixing device for producing flame-retardant polyether polyol according to claim 6, characterized in that: Spring 2 (399) is wound around the outer wall of several of the dampers (397), one end of several of the spring 2 (399) is fixedly connected to hoop 2 (396), and the other end of several of the spring 2 (399) is fixedly connected to several support legs (398).

8. A raw material mixing device for producing flame-retardant polyether polyol according to claim 7, characterized in that: A discharge pipe (3991) is fixedly connected to the outer wall of the hopper (1), the discharge pipe (3991) is communicated with the tank body (31), the discharge pipe (3991) is rotatably connected to a rotating rod (3992) inside, the left and right ends of the rotating rod (3992) extend outside the discharge pipe (3991), a valve (3993) is fixedly sleeved on the outer wall of the rotating rod (3992), the valve (3993) is adapted to the discharge pipe (3991), and a turntable (3994) is fixedly connected to the right side of the rotating rod (3992).

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