A device for preparing an adjustable thickness alumina fiber high-temperature-resistant polycrystalline film

Abstract

The utility model belongs to alumina fibre high temperature resistance polycrystal membrane preparation technical field, concretely relates to a kind of alumina fibre high temperature resistance polycrystal membrane preparation device of adjustable thickness, including working frame, the inner side wall of working frame is fixedly connected with workstation, the upper end of working frame is fixedly connected with liquid storage tank, spraying mechanism is cojointly arranged on working frame and liquid storage tank, motor one is fixedly installed at the left end of liquid storage tank, the output shaft of motor one is rotatably connected with liquid storage tank.The utility model cooperates with the use of the structure such as conveying pump, spray pipe, spray head, motor two, can be sprayed forming to alumina fibre high temperature resistance polycrystal membrane base material, and under the action of motor two, screw rod and other structures, can make spray head move back and forth, the dynamic adjustment of base material forming thickness is carried out, and cooperate with the action of elastic member, stopper and other structures, can be assisted support to screw rod, to guarantee the good driving effect of screw rod.

Description

Technical Field

[0001] This utility model relates to the field of high-temperature resistant polycrystalline film preparation technology of alumina fiber, specifically to a device for preparing high-temperature resistant polycrystalline film of alumina fiber with adjustable thickness. Background Technology

[0002] As is well known, the alumina fiber high-temperature resistant polycrystalline film preparation device is a special equipment used to produce high-performance polycrystalline alumina fiber materials. Its core function is to transform raw materials into fiber products with excellent high-temperature resistance through a specific process.

[0003] A method for preparing alumina hollow fiber membrane is disclosed in invention patent application publication number CN1360966A. Aluminum powder, alumina powder, and a sintering aid are ball-milled in acetone for 6–8 hours. The dried powder is dispersed in an organic solvent. Polymer polysulfone or polyvinylidene fluoride is added to the dispersed suspension to prepare a casting solution. The solution is stirred and kept at 60–80°C for 6–8 hours, then allowed to stand for 5–6 hours to remove bubbles. The solution is then extruded through a spinneret into a gel bath for curing. After immersion, the formed hollow fiber membrane is soaked to fully displace the organic solvent. After drying, the membrane is oxidized and sintered at a controlled heating rate to obtain the alumina hollow fiber membrane.

[0004] However, existing equipment for preparing high-temperature resistant polycrystalline films of alumina fibers also has certain drawbacks. Most existing equipment uses nozzle assemblies installed in a fixed position to spray and form sol-gel precursor solutions, which results in specific spray thickness and makes it difficult to effectively adjust the thickness of the high-temperature resistant polycrystalline film of alumina fibers. Utility Model Content

[0005] The purpose of this invention is to provide an adjustable-thickness alumina fiber high-temperature resistant polycrystalline film preparation device, which solves the problem that existing alumina fiber high-temperature resistant polycrystalline film preparation devices mostly use fixed-position spray nozzle assemblies to spray and form sol-gel precursor solutions, resulting in specific spray thickness and making it difficult to effectively adjust the thickness of the alumina fiber high-temperature resistant polycrystalline film.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an adjustable-thickness alumina fiber high-temperature resistant polycrystalline film preparation device, comprising a work frame, a worktable fixedly connected to the inner side wall of the work frame, a liquid storage tank fixedly connected to the upper end of the work frame, a spraying mechanism jointly provided on the work frame and the liquid storage tank, a motor fixedly installed at the left end of the liquid storage tank, the output shaft of the motor fixedly connected to the liquid storage tank, a stirring blade fixedly connected to the output shaft of the motor, a contact ball fixedly connected to the output shaft of the motor, a driven blade contacting the surface of the contact ball, and the driven blade located inside the liquid storage tank.

[0007] Preferably, elastic plates are welded to both ends of the driven blade, and the other end of the elastic plate is welded to the inner bottom of the liquid storage tank. The driven blade can be connected and used by means of the elastic plate.

[0008] Preferably, there are two contact balls, which are symmetrically distributed on the output shaft of the motor. By setting the contact balls, the driven blade can be squeezed.

[0009] Preferably, the spraying mechanism includes a guide seat, a guide seat is fixedly connected to the top inner side of the work frame, a guide rod is fixedly connected to the inner side wall of the guide seat, a movable plate is slidably sleeved on the outer side of the guide rod, the movable plate is slidably connected to the guide seat, the movable plate is slidably connected to the top inner side of the work frame, two evenly distributed fixing ears are fixedly connected to the lower end of the guide seat, a screw is rotatably connected to the inner wall of the two fixing ears, the screw is threadedly connected to the movable plate, a second motor is mounted on the right end of the work frame via a support member, the output shaft of the second motor is welded to the screw, and the movable plate... A spray pipe is fixedly connected to the lower end of the plate, and a nozzle is fixedly connected to the lower side of the spray pipe. A top plate is slidably connected to the inner wall of the moving plate. A limit block is fixedly connected to the vertical part of the top plate. The limit block is slidably connected to the moving plate and contacts the screw. An elastic element is bonded to the horizontal part of the top plate, and the other end of the elastic element is bonded to the moving plate. Through the setting of the spray pipe and nozzle, the mixed solution can be sprayed. Under the action of the motor, screw and other structures, the moving plate can drive the nozzle to move back and forth, thereby adjusting the forming thickness of the high temperature resistant polycrystalline film of alumina fiber.

[0010] Preferably, multiple nozzles are provided, and the multiple nozzles are evenly distributed on the spray pipe. By setting multiple nozzles, the mixed solution can be sprayed evenly.

[0011] Preferably, two limiting blocks are provided, and the two limiting blocks are symmetrically distributed on the moving plate. The limiting blocks can be used to provide auxiliary support for the screw.

[0012] Preferably, a delivery pump is installed on the left side of the work frame via a support rib. A first connecting hose is fixedly connected to the upper side of the delivery pump and is fixedly connected to a storage tank. A second connecting hose is fixedly connected to the lower side of the delivery pump and is fixedly connected to a nozzle. Through the action of the delivery pump, the first connecting hose, the second connecting hose, and other structures, the mixed solution can be delivered for use.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model uses a motor to drive the stirring blade to rotate, which can quickly stir the solutions such as sols and gels inside the storage tank. With the help of the contact ball, elastic sheet and other structures, the driven blade can assist in stirring the mixed solution to improve the mixing efficiency of the solution.

[0015] 2. This utility model, through the combined use of a conveying pump, spray pipe, nozzle, motor, and other structures, can spray and form alumina fiber high-temperature resistant polycrystalline film substrate. Under the action of motor, screw, and other structures, the nozzle can move back and forth to dynamically adjust the substrate forming thickness. In addition, with the help of elastic elements, limiting blocks, and other structures, the screw can be auxiliaryly supported to ensure good driving effect of the screw. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of this utility model;

[0017] Figure 2 For the present utility model Figure 1 Bottom view of the workbench;

[0018] Figure 3 For the present utility model Figure 1 A front sectional view;

[0019] Figure 4 For the present utility model Figure 2 Enlarged view of the local spraying mechanism;

[0020] Figure 5 For the present utility model Figure 3 Enlarged view of the driven leaf.

[0021] In the diagram: 1. Work frame; 2. Workbench; 3. Liquid storage tank; 4. Spraying mechanism; 5. Motor 1; 6. Stirring blade; 7. Contact ball; 8. Driven blade; 9. Elastic sheet; 40. Guide seat; 41. Guide rod; 42. Moving plate; 43. Fixed ear; 44. Screw; 45. Motor 2; 46. Spray pipe; 47. Nozzle; 48. Top plate; 49. Limiting block; 490. Elastic component; 491. Transfer pump. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 , Figure 2, Figure 3 , Figure 4 , Figure 5 A device for preparing alumina fiber high-temperature resistant polycrystalline film with adjustable thickness includes a work frame 1, a worktable 2 fixedly connected to the inner side wall of the work frame 1, a liquid storage tank 3 fixedly connected to the upper end of the work frame 1, a motor 5 fixedly installed at the left end of the liquid storage tank 3, the output shaft of the motor 5 being rotatably connected to the liquid storage tank 3, a stirring blade 6 fixedly connected to the output shaft of the motor 5, a contact ball 7 fixedly connected to the output shaft of the motor 5, a driven blade 8 in contact with the surface of the contact ball 7, and the driven blade 8 being located inside the liquid storage tank 3.

[0024] Please see Figure 1 , Figure 2 , Figure 3 , Figure 5 There are two contact balls 7, which are symmetrically distributed on the output shaft of motor 5. The contact balls 7 can be used to squeeze the driven blade 8. Both ends of the driven blade 8 are welded with elastic plates 9. The other end of the elastic plates 9 is welded to the bottom of the inner side of the liquid storage tank 3. The driven blade 8 can be connected and used through the elastic plates 9.

[0025] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 A spraying mechanism 4 is jointly provided on the work frame 1 and the liquid storage tank 3. The spraying mechanism 4 includes a guide seat 40. The guide seat 40 is fixedly connected to the top inner side of the work frame 1. A guide rod 41 is fixedly connected to the inner wall of the guide seat 40. A moving plate 42 is slidably sleeved on the outer side of the guide rod 41. The moving plate 42 is slidably connected to the guide seat 40 and the top inner side of the work frame 1. Two evenly distributed fixing ears 43 are fixedly connected to the lower end of the guide seat 40. A screw 44 is rotatably connected to the inner wall of the two fixing ears 43. The screw 44 is threadedly connected to the moving plate 42. A second motor 45 is installed on the right end of the work frame 1 through a support. The output shaft of the second motor 45 is welded to the screw 44. A nozzle 46 is fixedly connected to the lower end of the moving plate 42, and a nozzle 47 is fixedly connected to the lower side of the nozzle 46. A top plate 48 is slidably connected to the inner wall of the moving plate 42. A limit block 49 is fixedly connected to the vertical part of the top plate 48. The limit block 49 is slidably connected to the moving plate 42 and contacts the screw 44. An elastic element 490 is bonded to the horizontal part of the top plate 48. The other end of the elastic element 490 is bonded to the moving plate 42. Through the setting of the nozzle 46 and the nozzle 47, the mixed solution can be sprayed. Under the action of the motor 45, the screw 44 and other structures, the moving plate 42 can drive the nozzle 47 to move back and forth, thereby adjusting the forming thickness of the high temperature resistant polycrystalline film of alumina fiber.

[0026] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 Multiple nozzles 47 are provided, and the multiple nozzles 47 are evenly distributed on the spray pipe 46. By setting multiple nozzles 47, the mixed solution can be sprayed evenly. Two limiting blocks 49 are provided, and the two limiting blocks 49 are symmetrically distributed on the moving plate 42. By setting the limiting blocks 49, the screw 44 can be used for auxiliary support.

[0027] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 A delivery pump 491 is installed on the left side of the work frame 1 via a support rib. A connecting hose 1 is fixedly connected to the upper side of the delivery pump 491 and is fixedly connected to the liquid storage tank 3. A connecting hose 2 is fixedly connected to the lower side of the delivery pump 491 and is fixedly connected to the nozzle 46. Through the function of the delivery pump 491, connecting hose 1, connecting hose 2 and other structures, the mixed solution can be delivered for use.

[0028] The specific implementation process of this utility model is as follows: In use, the output shaft is driven by motor 5 to rotate, thereby driving the stirring blade 6 to rotate, and stirring and mixing solutions such as sols and gels. When the output shaft of motor 5 rotates, it can drive the contact ball 7 to rotate, so that when the contact ball 7 squeezes the driven blade 8, it can push the driven blade 8 to move, causing the elastic sheet 9 to deform. When the contact ball 7 disengages from the driven blade 8, the elastic sheet 9 restores its deformation, thereby driving the driven blade 8 to reset and move. This cycle repeats, so that the driven blade 8 can assist in stirring the mixed solution, thereby improving the mixing efficiency of solutions such as sols and gels.

[0029] With the delivery pump 491, solutions such as sols and gels can be delivered into the nozzle 46. Under the action of the nozzle 47, the mixed solution can be sprayed evenly. The motor 45 drives the output shaft to rotate, which drives the screw 44 to rotate. With the threaded connection, the moving plate 42 slides along the inner wall of the guide seat 40, and drives the nozzle 46 and nozzle 47 to move, spraying the mixed solution back and forth, and adjusting the thickness of the alumina fiber high-temperature resistant polycrystalline film.

[0030] When the moving plate 42 moves stably, it can drive the limiting block 49 to slide along the surface of the screw 44 to provide auxiliary support for the screw 44, so as to avoid the phenomenon of sinking and deformation of the excessively long screw 44, which would cause poor driving effect. Under the deformation of the elastic element 490, the top plate 48 can drive the limiting block 49 to always be in contact with the screw 44 to ensure good contact and support effect.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An apparatus for preparing high-temperature resistant polycrystalline alumina fiber films with adjustable thickness, comprising a work stand (1), characterized in that: A workbench (2) is fixedly connected to the inner side wall of the work frame (1). A liquid storage tank (3) is fixedly connected to the upper end of the work frame (1). A spraying mechanism (4) is provided on both the work frame (1) and the liquid storage tank (3). A motor (5) is fixedly installed on the left end of the liquid storage tank (3). The output shaft of the motor (5) is rotatably connected to the liquid storage tank (3). A stirring blade (6) is fixedly connected to the output shaft of the motor (5). A contact ball (7) is fixedly connected to the output shaft of the motor (5). A driven blade (8) is in contact with the surface of the contact ball (7). The driven blade (8) is located inside the liquid storage tank (3).

2. The apparatus for preparing alumina fiber high-temperature resistant polycrystalline film with adjustable thickness according to claim 1, characterized in that: Both ends of the driven blade (8) are welded with elastic sheets (9), and the other end of the elastic sheet (9) is welded to the bottom of the inner side of the liquid storage tank (3).

3. The apparatus for preparing alumina fiber high-temperature resistant polycrystalline film with adjustable thickness according to claim 1, characterized in that: Two contact balls (7) are provided, and the two contact balls (7) are symmetrically distributed on the output shaft of motor (5).

4. The apparatus for preparing alumina fiber high-temperature resistant polycrystalline film with adjustable thickness according to claim 1, characterized in that: The spraying mechanism (4) includes a guide seat (40). The guide seat (40) is fixedly connected to the top inner side of the work frame (1). A guide rod (41) is fixedly connected to the inner wall of the guide seat (40). A moving plate (42) is slidably sleeved on the outer side of the guide rod (41). The moving plate (42) is slidably connected to the guide seat (40) and to the top inner side of the work frame (1). Two evenly distributed fixing ears (43) are fixedly connected to the lower end of the guide seat (40). A screw (44) is rotatably connected to the inner wall of the two fixing ears (43). The screw (44) is threadedly connected to the moving plate (42). The work frame (1) A second motor (45) is installed on the right end via a support member. The output shaft of the second motor (45) is welded to the screw (44). A nozzle (46) is fixedly connected to the lower end of the moving plate (42). A nozzle (47) is fixedly connected to the lower side of the nozzle (46). A top plate (48) is slidably connected to the inner wall of the moving plate (42). A limit block (49) is fixedly connected to the vertical part of the top plate (48). The limit block (49) is slidably connected to the moving plate (42). The limit block (49) is in contact with the screw (44). An elastic element (490) is bonded to the horizontal part of the top plate (48). The other end of the elastic element (490) is bonded to the moving plate (42).

5. The apparatus for preparing alumina fiber high-temperature resistant polycrystalline film with adjustable thickness according to claim 4, characterized in that: The nozzle (47) is provided in multiple ways, and the multiple nozzles (47) are evenly distributed on the nozzle pipe (46).

6. The apparatus for preparing alumina fiber high-temperature resistant polycrystalline film with adjustable thickness according to claim 4, characterized in that: There are two limiting blocks (49), which are symmetrically distributed on the moving plate (42).

7. The apparatus for preparing alumina fiber high-temperature resistant polycrystalline film with adjustable thickness according to claim 4, characterized in that: A delivery pump (491) is installed on the left side of the work frame (1) via a support rib. A first connecting hose is fixedly connected to the upper side of the delivery pump (491), and the first connecting hose is fixedly connected to the liquid storage tank (3). A second connecting hose is fixedly connected to the lower side of the delivery pump (491), and the second connecting hose is fixedly connected to the nozzle (46).

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