Preparation device and preparation method of catalytic reduction type ceramic membrane

Abstract

The invention relates to a preparation device of a catalytic reduction type ceramic membrane, the preparation device comprises a bottom plate and a material storage cylinder arranged at the top of the bottom plate, a feeding hopper is arranged at the top of the material storage cylinder, a stirring assembly is arranged in the material storage cylinder, the material storage cylinder is communicated with a pipe frame, and the other side of the pipe frame is fixedly communicated with a second shell; a plurality of inserting rods are fixedly connected to the top of the inner wall of the second shell, a plastic plate is arranged on the inner side wall of the second shell in an attached mode, the bottom end of the plastic plate is fixedly connected with the second shell, and a carrier plate which is arranged in an opening and closing mode through a pushing structure is arranged at the bottom end of the second shell. The device further comprises a vacuum pump, the vacuum pump communicates with a vacuumizing pipe, a vacuumizing channel is formed in one inserting rod in a penetrating mode, a plurality of vacuumizing openings communicating with the vacuumizing channel are formed in the side wall of the top end of the inserting rod, the vacuumizing pipe penetrates through the carrying plate and is matched with the vacuumizing channel, and a plurality of heating wires are installed in the second shell. And a worker can conveniently demould a product.

Description

Technical Field

[0001] The invention relates to a preparation device and a preparation method of a catalytic reduction ceramic membrane, belonging to the technical field of ceramic membranes. Background Art

[0002] Ceramic membrane, also known as inorganic ceramic membrane, is an asymmetric membrane formed by a special process of preparing inorganic ceramic materials. Ceramic membrane has many advantages such as high separation efficiency, good chemical stability, simple separation process and long service life. It has been successfully used in many fields such as food, fermentation, fine chemicals, etc. Summary of the invention

[0003] In order to solve the above problems existing in the prior art, the present invention provides a preparation device and a preparation method of a catalytic reduction ceramic membrane, which can make it convenient for workers to demould the product.

[0004] The technical solution of the present invention is as follows:

[0005] A preparation device for a catalytic reduction type ceramic membrane comprises a base plate and a storage barrel arranged on the top of the base plate, a feed hopper is arranged on the top of the storage barrel, a stirring assembly is arranged inside the storage barrel, the storage barrel is connected to a pipe rack, and a second shell is connected and fixed on the other side of the pipe rack; a plurality of plug rods are fixedly connected to the top of the inner wall of the second shell, a plastic sheet is fitted on the inner side wall of the second shell, the bottom end of the plastic sheet is fixedly connected to the second shell, and a carrier plate which is opened and closed by a pushing structure is arranged at the bottom end of the second shell; a vacuum pump is also included, the vacuum pump is connected to a vacuum pipe, a vacuum channel is arranged inside one of the plug rods, and a plurality of vacuum ports which are connected to the vacuum channel are arranged on the side wall at the top end of the plug rod, the vacuum pipe passes through the carrier plate and is arranged to match the vacuum channel, and a plurality of heating wires are installed inside the second shell.

[0006] In which, the pushing structure includes two connecting blocks arranged on the outer wall of one side of the second shell, a first cylinder is fixedly connected between the two connecting blocks, one end of the piston rod of the first cylinder is fixedly connected to a connecting plate, the bottom of the connecting plate is fixedly connected to a plurality of second connecting rods through a second spring, and a telescopic sleeve is sleeved on the outside of the second spring, the two ends of the telescopic sleeve are respectively fixedly connected to the second connecting rod and the connecting plate, a plurality of second connecting rods slide through the top of the second shell and are fixedly connected to a pressure plate, the pressure plate is slidably matched with the insertion rod, and the first connecting rods are fixedly connected to both sides of the connecting plate, and the other end of the first connecting rod is fixed to the carrier plate.

[0007] Wherein, the plastic sheet is provided with a plurality of water-proof and air-permeable holes.

[0008] Among them, the stirring assembly includes a dovetail groove, which is opened on the top inner wall of the storage barrel, and a support plate is movably connected in the dovetail groove, and a motor is fixedly connected to the upper surface of the support plate, and a rotating shaft is movably connected to the bottom of the support plate, and one end of the motor output shaft is fixed to the rotating shaft, and a gear is fixedly connected to the outside of the rotating shaft, and a gear ring is fixedly connected to the circumferential inner wall of the storage barrel, and the gear ring is meshed with the gear, and the bottom end of the rotating shaft is fixedly connected to a stirring frame.

[0009] Among them, a plurality of fixing plates are fixedly connected to the outer wall of one side of the storage barrel, a first shell is fixedly connected inside the fixing plate, a pressure assembly is arranged inside the first shell, a feed pipe and a discharge pipe are connected and fixed to the top of the first shell, and the insides of the feed pipe and the discharge pipe are respectively provided with non-return assemblies with opposite non-return directions, one end of the feed pipe passes through the storage barrel and is connected and fixed with a connecting pipe, the other end of the connecting pipe is located at the lower part of the storage barrel, the second shell is fixed by the plurality of fixing plates, and the pipe rack is connected to the discharge pipe.

[0010] Wherein, the pressure assembly includes a second cylinder, which is fixed to the top outer wall of the first shell by bolts, one end of the piston rod of the second cylinder passes through the first shell and is fixedly connected to a piston block, and the piston block is slidably connected to the first shell.

[0011] Among them, the anti-return assembly includes a cross bracket, which is fixed to the circumferential inner wall of the discharge pipe by bolts, a slide cylinder is fixedly connected to one side of the cross bracket, a slide rod is inserted and slidably connected to one end of the slide cylinder, a baffle is fixedly connected to the other end of the slide rod, a first spring is fixedly connected to one end of the slide rod, and the first spring is fixed to the cross bracket, a fixing ring is fixedly connected to the circumferential inner wall of the discharge pipe, and the baffle is used to block the gap in the middle of the fixing ring.

[0012] Wherein, the pressure assembly includes a second cylinder, which is fixed to the top outer wall of the first shell by bolts, one end of the piston rod of the second cylinder passes through the first shell and is fixedly connected to a piston block, and the piston block is slidably connected to the first shell.

[0013] The bottom end of the plastic sheet is folded, the folded edge of the bottom end of the plastic sheet is arranged between the carrier plate and the bottom end of the second shell, and the folded edge of the bottom end of the plastic sheet is fixedly connected to the bottom end of the second shell.

[0014] A venting groove is provided on one side of the second shell, and the venting groove is located at the upper end of the connection between the pipe rack and the second shell, and switch valves are provided inside the pipe rack and the venting groove.

[0015] A method for preparing a catalytic reduction ceramic membrane is characterized in that it comprises the following steps:

[0016] S1: Add the raw materials into the storage barrel, then start the motor. The motor rotates to make the gear drive the stirring frame to rotate. Since the gear is meshed with the gear ring, the gear moves along the gear ring during the rotation, so that the stirring frame fully stirs the raw materials in the storage barrel.

[0017] S2: Start the second cylinder, the second cylinder extends to make the piston block move downward along the first shell, and according to the principle of the syringe, the raw material in the storage barrel moves upward through the connecting pipe and enters the interior of the first shell through the feeding pipe. At this time, the raw material is located in the space above the piston block in the first shell;

[0018] S3: When the raw material in the first shell is extracted, the second cylinder contracts, so that the raw material above the piston block enters the second shell through the discharge pipe and the pipe rack;

[0019] S4: closing the switch valve of the pipe rack port, and starting the heating wire to heat the raw material inside the second shell to solidify the raw material, and soften the plastic sheet through the heating wire, and then closing the switch valve inside the exhaust groove to make the second shell in a closed state;

[0020] S5: Turn off the heating wire and start the vacuum pump to evacuate the interior of the second shell. The vacuum is used to form a negative pressure so that the softened plastic sheet is closely attached to the formed ceramic film, thereby further shaping the ceramic film.

[0021] S6: After solidification is completed and the temperature drops, start the first cylinder. The first cylinder contracts to cause the first connecting rod to drive the carrier plate to move downward. Due to the setting of the telescopic sleeve and the second spring, when the carrier plate is separated from the second shell, the compression of the second spring reaches the limit, and then the connecting plate drives the pressure plate to move downward through the second connecting rod, so that the pressure plate pushes the solidified raw material to move downward. At this time, the external air enters the second shell, flows into the gap between the plastic sheet and the ceramic membrane through a number of water-proof and breathable holes on the plastic sheet, and squeezes the close fit between the plastic sheet and the ceramic membrane, so that the ceramic membrane can be separated from the plastic sheet, and finally until the solidified raw material is completely separated from the insertion rod, and then the solidified raw material can be taken out from the carrier.

[0022] The present invention has the following beneficial effects:

[0023] The present invention heats and softens the plastic sheet while heating and solidifying the raw material, and compresses the plastic sheet under negative pressure through a vacuum pump to squeeze the solidified raw material, and then uses the ventilated air to squeeze into the gap between the plastic sheet and the solidified ceramic film, so that the ceramic film can be easily removed from the film;

[0024] The present invention pushes the product downward by the pressing plate, so that the product is completely separated from the insertion rod, thereby facilitating the staff to take out the separated product from the carrier plate, and further facilitating the staff to quickly demold the product, thereby improving the convenience of the device.

[0025] The present invention provides two non-return components with opposite non-return directions, so that the raw materials in the feed pipe and the discharge pipe can move according to the set flow direction, avoiding the reverse movement of the raw materials affecting the use of the device, and improving the stability of the device.

[0026] The present invention provides a stirring assembly to enable the gear to move along the gear ring during the self-rotation process, so that the stirring frame can fully stir the raw materials in the storage barrel, thereby avoiding the precipitation of the raw materials and improving the stirring effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the cross-sectional structure of the material storage barrel of the present invention;

[0029] Figure 3 It is a schematic diagram of a partial cross-sectional structure of the present invention;

[0030] Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure of the middle part A;

[0031] Figure 5 It is a schematic diagram of the cross-sectional structure of the slide tube of the present invention;

[0032] Figure 6 It is a half-section view of the second shell of the present invention.

[0033] The reference numerals in the figure are as follows:

[0034] 1. Storage barrel; 2. First shell; 3. Bottom plate; 4. Second shell; 5. Fixed plate; 6. Support plate; 7. Gear; 8. Dovetail groove; 9. Gear ring; 10. Stirring frame; 11. Connecting pipe; 12. Carrier plate; 13. First connecting rod; 14. Pipe rack; 15. First cylinder; 16. Second connecting rod; 17. Connecting plate; 18. Discharging pipe; 19. Second cylinder; 20. Feeding pipe; 21. Piston block; 22. Heating wire; 25. Insert rod; 26. Exhaust groove; 27. Press plate; 28. Fixed ring; 29. ​​First spring; 30. Baffle; 31. Sliding rod; 32. Sliding cylinder; 33. Cross bracket; 34. Plastic sheet; 35. Vacuum pump; 36. Vacuum tube; 37. Second spring; 38. Telescopic sleeve. DETAILED DESCRIPTION

[0035] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] See also Figures 1 to 6 , the invention provides a technical solution:

[0037] A preparation device for a catalytic reduction ceramic membrane, comprising a bottom plate 3 and a storage barrel 1 arranged on the top of the bottom plate 3, a feed hopper being arranged on the top of the storage barrel 1, a stirring assembly being arranged inside the storage barrel 1, the storage barrel 1 being connected to a pipe rack 14, and a second shell 4 being connected and fixed on the other side of the pipe rack 14; a plurality of plug rods 25 being fixedly connected to the top of the inner wall of the second shell 4, a plastic sheet 34 being fitted on the inner side wall of the second shell 4, a through hole being arranged on the plastic sheet 34, and the connection between the plastic sheet 34 and the pipe rack 14 and the second shell 4 The bottom end of the plastic sheet 34 is fixedly connected to the second shell 4, and the bottom end of the second shell 4 is provided with a carrier plate 12 opened and closed by a pushing structure; it also includes a vacuum pump 35, and the vacuum pump 35 is connected to a vacuum pipe 36, one of the insertion rods 25 is provided with a vacuum channel, and the top side wall of the insertion rod 25 is provided with a plurality of vacuum ports connected to the vacuum channel, the vacuum pipe 36 passes through the carrier plate 12 and is matched with the vacuum channel, and a plurality of heating wires 22 are installed inside the second shell 4;

[0038] When the heating wire 22 heats the ceramic film raw material and solidifies the ceramic film, the high temperature will also soften the plastic sheet 34. The softened plastic sheet 34 is evacuated to the inside of the second shell 4 by the vacuum pump 35, so that the softened plastic sheet 34 can fit more closely with the solidified ceramic film raw material, thereby assisting the shaping of the ceramic film. At the same time, a plurality of water-proof and air-permeable holes are provided on the plastic sheet 34, and one end of the water-proof and air-permeable holes fits the surface of the ceramic film raw material. When the carrier plate 12 is opened by the pushing structure and the vacuum environment inside the second shell 4 is connected to the outside air, a large amount of outside air will be sucked in due to the existence of negative pressure. The outside air flows into the plastic sheet 34 and the ceramic film raw material through the water-proof and air-permeable holes and squeezes the close fit between the two, so that the connection is no longer tight, thereby achieving the effect of demolding. At the same time, the pushing structure can also assist in pushing out the solidified raw material inside, thereby assisting in demolding.

[0039] The pushing structure includes two connecting blocks arranged on the outer wall of one side of the second shell 4, and a first cylinder 15 is fixedly connected between the two connecting blocks. One end of the piston rod of the first cylinder 15 is fixedly connected to a connecting plate 17, and the bottom of the connecting plate 17 is fixedly connected to multiple second connecting rods 16 through a second spring 37, and a telescopic sleeve 38 is sleeved on the outside of the second spring 37, and the two ends of the telescopic sleeve 38 are respectively fixedly connected to the second connecting rod 16 and the connecting plate 17; multiple second connecting rods 16 slide through the top of the second shell 4 and are fixedly connected to a pressure plate 27, and the pressure plate 27 is slidably matched with the insertion rod 25, and both sides of the connecting plate 17 are fixedly connected to the first connecting rod 13, and the other end of the first connecting rod 13 is fixed to the carrier plate 12. By setting the telescopic sleeve 38 and the second spring 37, when the first cylinder 15 contracts, the connecting plate 17 is driven to move toward the second shell 4. At this time, the telescopic sleeve 38 and the second spring 37 contract, and the first connecting rod 13 moves with the connecting plate 17, thereby opening the carrier plate 12, until the telescopic sleeve 38 and the second spring 37 are compressed to the limit, the connecting plate 17 continues to move downward, and the first connecting rod 13 can be driven to move downward synchronously, so that the carrier plate 12 is driven by the first connecting rod 13 to squeeze the solidified ceramic film raw material; the ceramic film raw material inside can be brought out. It is worth mentioning that this step needs to be performed when the internal temperature is cooled to avoid bringing out the plastic sheet 34 that is still in a softened state inside the second shell 4;

[0040] The stirring assembly includes a dovetail groove 8, which is provided on the top inner wall of the storage barrel 1. A support plate 6 is movably connected in the dovetail groove 8. A motor is fixedly connected to the upper surface of the support plate 6. A rotating shaft is movably connected to the bottom of the support plate 6, and one end of the motor output shaft is fixed to the rotating shaft. A gear 7 is fixedly connected to the outside of the rotating shaft. A gear ring 9 is fixedly connected to the circumferential inner wall of the storage barrel 1, and the gear ring 9 is meshed with the gear 7. A stirring frame 10 is fixedly connected to the bottom end of the rotating shaft. The rotation of the motor causes the gear 7 to drive the stirring frame 10 to rotate. Since the gear 7 is meshed with the gear ring 9, the gear 7 moves along the gear ring 9 during the rotation process, so that the stirring frame 10 fully stirs the raw materials in the storage barrel 1 to avoid the precipitation of the raw materials.

[0041] A plurality of fixing plates 5 are fixedly connected to the outer wall of one side of the storage barrel 1, and a first shell 2 is fixedly connected inside the fixing plates 5. A pressure assembly is provided inside the first shell 2. A feed pipe 20 and a discharge pipe 18 are connected and fixed to the top of the first shell 2. The insides of the feed pipe 20 and the discharge pipe 18 are respectively provided with non-return assemblies with opposite non-return directions. One end of the feed pipe 20 passes through the storage barrel 1 and is connected and fixed with a connecting pipe 11. The other end of the connecting pipe 11 is located at the lower part of the storage barrel 1. The second shell 4 is fixed by a plurality of fixing plates 5, and the pipe rack 14 is connected to the discharge pipe 18.

[0042] The pressure assembly includes a second cylinder 19, which is fixed to the top outer wall of the first shell 2 by bolts. One end of the piston rod of the second cylinder 19 passes through the first shell 2 and is fixedly connected to a piston block 21, and the piston block 21 is slidably connected to the first shell 2.

[0043] The anti-return assembly includes a cross bracket 33, which is fixed to the circumferential inner wall of the discharge pipe 18 by bolts, a slide cylinder 32 is fixedly connected to one side of the cross bracket 33, a slide rod 31 is inserted and slidably connected to one end of the slide cylinder 32, a baffle 30 is fixedly connected to the other end of the slide rod 31, a first spring 29 is fixedly connected to one end of the slide rod 31, and the first spring 29 is fixed to the cross bracket 33, a fixing ring 28 is fixedly connected to the circumferential inner wall of the discharge pipe 18, and the baffle 30 is used to block the gap in the middle of the fixing ring 28. In the process of raw material entering the feed pipe 20, the raw material liquid pushes the baffle 30 to move out of the fixing ring 28, and the slide rod 31 moves inward along the slide cylinder 32, the first spring 29 contracts, and when the raw material in the first shell 2 flows back, the raw material squeezes the baffle 30 to block the fixing ring 28, thereby achieving the anti-return effect.

[0044] The pressure assembly includes a second cylinder 19, which is fixed to the top outer wall of the first shell 2 by bolts. One end of the piston rod of the second cylinder 19 passes through the first shell 2 and is fixedly connected to a piston block 21, and the piston block 21 is slidably connected to the first shell 2.

[0045] It should be noted that the bottom end of the plastic sheet 34 is folded, and the folded edge of the bottom end of the plastic sheet 34 is arranged between the carrier 12 and the bottom end of the second shell 4, and the folded edge of the bottom of the plastic sheet 34 is fixedly connected to the bottom end of the second shell 4; and a groove is provided at the bottom of the second shell 4, and the outer periphery of the folded edge of the bottom of the plastic sheet 34 is embedded in the groove. Through the cooperation between the folded edge of the bottom of the plastic sheet 34 and the groove, the contact between the carrier 12, the plastic sheet 34 and the second shell 4 is made tighter, and the connection is prevented from leaking easily;

[0046] An exhaust groove 26 is provided on one side of the second shell 4 to allow the interior of the second shell 4 to be exhausted, thereby preventing the high air pressure in the second shell 4 from affecting the use of the device. The exhaust groove 26 is located at the upper end of the connection between the pipe rack 14 and the second shell 4, thereby preventing the raw materials from being mixed into the exhaust groove 26. At the same time, switch valves are provided inside the pipe rack 14 and the exhaust groove 26 to provide a closed space when vacuuming.

[0047] A method for preparing a catalytic reduction ceramic membrane is characterized in that it comprises the following steps:

[0048] S1: Add the raw materials into the storage barrel 1, and then start the motor. The motor rotates to make the gear 7 drive the stirring frame 10 to rotate. Since the gear 7 is meshed with the gear ring 9, the gear 7 moves along the gear ring 9 during the rotation process, so that the stirring frame 10 fully stirs the raw materials in the storage barrel 1;

[0049] S2: Start the second cylinder 19, which extends to move the piston block 21 downward along the first housing 2. According to the principle of the syringe, the raw material in the storage barrel 1 moves upward through the connecting pipe 11 and enters the first housing 2 through the feeding pipe 20. At this time, the raw material is located in the space above the piston block 21 in the first housing 2;

[0050] S3: When the raw material in the first shell 2 is extracted, the second cylinder 19 contracts, so that the raw material above the piston block 21 enters the second shell 4 through the discharge pipe 18 and the pipe rack 14;

[0051] S4: Start the switch valve at the port of the pipe rack 14, and start the heating wire 22 at the same time, so that it heats the raw material inside the second shell 4 to solidify the raw material, and softens the plastic sheet 34 through the heating wire 22, and then close the switch valve inside the exhaust groove 26, so that the second shell 4 is in a closed state;

[0052] S5: Turn off the heating wire 22 and start the vacuum pump 35 to evacuate the interior of the second housing 4. The negative pressure formed by evacuation makes the softened plastic sheet 34 closely adhere to the formed ceramic film, thereby further shaping the ceramic film.

[0053] S6: After solidification is completed and the temperature drops, the first cylinder 15 is started. The first cylinder 15 contracts to cause the first connecting rod 13 to drive the carrier plate 12 to move downward. Due to the setting of the telescopic sleeve 38 and the second spring 37, when the carrier plate 12 is separated from the second shell 4, the compression amount of the second spring 37 reaches the limit, and then the connecting plate 17 drives the pressure plate 27 to move downward through the second connecting rod 16, so that the pressure plate 27 pushes the solidified raw material to move downward. At this time, the external air enters the second shell 4, flows into the gap between the plastic sheet 34 and the ceramic membrane through a plurality of water-proof and breathable holes on the plastic sheet 34, and squeezes the close fit between the plastic sheet 34 and the ceramic membrane, so that the ceramic membrane can be separated from the plastic sheet 34, and finally until the solidified raw material is completely separated from the insertion rod 25, and then the solidified raw material can be taken out from the carrier plate 12.

[0054] The working principle of the above-mentioned catalytic reduction ceramic membrane preparation device is as follows:

[0055] When in use, first add the raw materials into the storage barrel 1, then start the motor, the motor rotates to make the gear 7 drive the stirring frame 10 to rotate, because the gear 7 is meshed with the gear ring 9, the gear 7 moves along the gear ring 9 during the rotation, so that the stirring frame 10 fully stirs the raw materials in the storage barrel 1 to prevent the raw materials from settling, and then start the second cylinder 19, the second cylinder 19 extends to make the piston block 21 move downward along the first shell 2, according to the principle of the syringe, the raw materials in the storage barrel 1 move upward through the connecting tube 11, and enter the first shell 2 through the feeding tube 20. At this time, the raw material is located in the space above the piston block 21 in the first shell 2. At the same time, when the raw material enters the feed pipe 20, the raw material liquid pushes the baffle 30 to move out of the fixing ring 28, and the slide rod 31 moves along the inner side of the slide cylinder 32, and the first spring 29 contracts. When the raw material in the first shell 2 is extracted, the second cylinder 19 contracts, so that the raw material above the piston block 21 enters the second shell 4 through the discharge pipe 18 and the pipe rack 14, the switch valve at the port of the pipe rack 14 is closed, and the heating wire 22 is started to heat the raw material inside the second shell 4, so that the raw material solidifies, and passes through The heating wire 22 softens the plastic sheet 34, and then the switch valve inside the exhaust groove 26 is closed to put the second shell 4 in a closed state; the heating wire 22 is turned off, and the inside of the second shell 4 is evacuated by starting the vacuum pump 35. The negative pressure formed by the evacuation makes the softened plastic sheet 34 closely adhere to the formed ceramic film, and further shapes the ceramic film; after the solidification is completed and the temperature drops, the first cylinder 15 is started, and the first cylinder 15 contracts to make the first connecting rod 13 drive the carrier plate 12 to move downward. Due to the setting of the telescopic sleeve 38 and the second spring 37, when the carrier plate 12 is separated When the second shell 4 is formed, the compression of the second spring 37 reaches the limit, and then the connecting plate 17 drives the pressure plate 27 to move downward through the second connecting rod 16, so that the pressure plate 27 pushes the solidified raw material to move downward. At this time, the external air enters the second shell 4, flows into the gap between the plastic sheet 34 and the ceramic membrane through a plurality of water-proof and breathable holes on the plastic sheet 34, and squeezes the close fit between the plastic sheet 34 and the ceramic membrane, so that the ceramic membrane can be separated from the plastic sheet 34, and finally until the solidified raw material is completely separated from the insertion rod 25, and then the solidified raw material can be taken out from the carrier plate 12.

[0056] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A device for preparing a catalytic reduction ceramic membrane, comprising a bottom plate (3) and a storage cylinder (1) arranged on the top of the bottom plate (3), characterized in that: The top of the material storage barrel (1) is provided with a feed hopper, the interior of the material storage barrel (1) is provided with a stirring assembly, the material storage barrel (1) is connected to a pipe rack (14), and the other side of the pipe rack (14) is connected and fixed with a second shell (4); a plurality of plug rods (25) are fixedly connected to the top of the inner wall of the second shell (4), a plastic sheet (34) is fitted on the inner side wall of the second shell (4), the bottom end of the plastic sheet (34) is fixedly connected to the second shell (4), and the bottom end of the second shell (4) is provided with a carrier plate (12) opened and closed by a pushing structure; a vacuum pump (35) is also included, the vacuum pump (35) is connected to a vacuum pipe (36), a vacuum channel is provided inside one of the plug rods (25), and a plurality of vacuum ports connected to the vacuum channel are provided on the top side wall of the plug rod (25), the vacuum pipe (36) passes through the carrier plate (12) and is matched with the vacuum channel, and a plurality of heating wires (22) are installed inside the second shell (4).

2. The device for preparing a catalytic reduction ceramic membrane according to claim 1, characterized in that: The pushing structure comprises two connecting blocks arranged on the outer wall of one side of the second shell (4), a first cylinder (15) is fixedly connected between the two connecting blocks, one end of the piston rod of the first cylinder (15) is fixedly connected to a connecting plate (17), the bottom of the connecting plate (17) is fixedly connected to a plurality of second connecting rods (16) through a second spring (37), and a telescopic sleeve (38) is sleeved on the outside of the second spring (37), the two ends of the telescopic sleeve (38) are respectively fixedly connected to the second connecting rod (16) and the connecting plate (17), the plurality of second connecting rods (16) slide through the top of the second shell (4) and are fixedly connected to a pressure plate (27), the pressure plate (27) is slidably matched with the insertion rod (25), both sides of the connecting plate (17) are fixedly connected to the first connecting rod (13), and the other end of the first connecting rod (13) is fixed to the carrier plate (12).

3. The device for preparing a catalytic reduction ceramic membrane according to claim 2, characterized in that: The plastic sheet (34) is provided with a plurality of water-proof and air-permeable holes.

4. The device for preparing a catalytic reduction ceramic membrane according to claim 1, characterized in that: The stirring assembly comprises a dovetail groove (8), the dovetail groove (8) is formed on the top inner wall of the storage barrel (1), a support plate (6) is movably connected in the dovetail groove (8), a motor is fixedly connected to the upper surface of the support plate (6), a rotating shaft is movably connected to the bottom of the support plate (6), and one end of the motor output shaft is fixed to the rotating shaft, a gear (7) is fixedly connected to the outside of the rotating shaft, a gear ring (9) is fixedly connected to the circumferential inner wall of the storage barrel (1), and the gear ring (9) is meshed with the gear (7), and a stirring frame (10) is fixedly connected to the bottom end of the rotating shaft.

5. The device for preparing a catalytic reduction ceramic membrane according to claim 4, characterized in that: A plurality of fixing plates (5) are fixedly connected to the outer wall of one side of the storage barrel (1), and a first shell (2) is fixedly connected to the interior of the fixing plate (5). A pressure assembly is provided inside the first shell (2). A feed pipe (20) and a discharge pipe (18) are connected and fixed to the top of the first shell (2). The insides of the feed pipe (20) and the discharge pipe (18) are respectively provided with anti-return assemblies with opposite anti-return directions. One end of the feed pipe (20) passes through the storage barrel (1) and is connected and fixed to a connecting pipe (11). The other end of the connecting pipe (11) is located at the lower part of the storage barrel (1). The second shell (4) is fixed by the plurality of fixing plates (5), and the pipe rack (14) is connected to the discharge pipe (18).

6. The device for preparing a catalytic reduction ceramic membrane according to claim 5, characterized in that: The pressure assembly comprises a second cylinder (19), the second cylinder (19) being fixed to the top outer wall of the first shell (2) by means of bolts, one end of the piston rod of the second cylinder (19) passing through the first shell (2) and being fixedly connected to a piston block (21), and the piston block (21) being slidably connected to the first shell (2).

7. The device for preparing a catalytic reduction ceramic membrane according to claim 6, characterized in that: The anti-return assembly includes a cross bracket (33), which is fixed to the circumferential inner wall of the discharge pipe (18) by bolts, a slide cylinder (32) is fixedly connected to one side of the cross bracket (33), a slide rod (31) is inserted and slidably connected to one end of the slide cylinder (32), and a baffle (30) is fixedly connected to the other end of the slide rod (31), one end of the slide rod (31) is fixedly connected to a first spring (29), and the first spring (29) is fixed to the cross bracket (33), and the circumferential inner wall of the discharge pipe (18) is fixedly connected to a fixing ring (28), and the baffle (30) is used to block the gap in the middle of the fixing ring (28).

8. The device for preparing a catalytic reduction ceramic membrane according to claim 1, characterized in that: The bottom end of the plastic sheet (34) is folded, the folded edge of the bottom end of the plastic sheet (34) is arranged between the carrier plate (12) and the bottom end of the second shell (4), and the folded edge of the bottom end of the plastic sheet (34) is fixedly connected to the bottom end of the second shell (4).

9. The device for preparing a catalytic reduction ceramic membrane according to claim 1, characterized in that: An exhaust groove (26) is provided on one side of the second shell (4), and the exhaust groove (26) is located at the upper end of the connection between the pipe rack (14) and the second shell (4), and switch valves are provided inside the pipe rack (14) and the exhaust groove (26).

10. A method for preparing a catalytic reduction ceramic membrane according to any one of claims 1 to 9, characterized in that it comprises the following steps: S1: Add raw materials into the storage barrel (1), then start the motor, the motor rotates to make the gear (7) drive the stirring frame (10) to rotate, and because the gear (7) is meshed with the gear ring (9), the gear (7) moves along the gear ring (9) during the rotation process, so that the stirring frame (10) fully stirs the raw materials in the storage barrel (1); S2: The second cylinder (19) is started, and the second cylinder (19) is extended to cause the piston block (21) to move downward along the first housing (2). According to the principle of a syringe, the raw material in the storage barrel (1) moves upward through the connecting pipe (11) and enters the interior of the first housing (2) through the feeding pipe (20). At this time, the raw material is located in the space above the piston block (21) in the first housing (2); S3: When the extraction of the raw material in the first shell (2) is completed, the second cylinder (19) contracts, so that the raw material above the piston block (21) enters the second shell (4) through the discharge pipe (18) and the pipe rack (14); S4: closing the switch valve at the port of the pipe rack (14), and simultaneously starting the heating wire (22) to heat the raw material inside the second shell (4) to solidify the raw material, and softening the plastic sheet (34) through the heating wire (22), and then closing the switch valve inside the exhaust groove (26) to put the second shell (4) in a sealed state; S5: turning off the heating wire (22) and evacuating the interior of the second shell (4) by starting the vacuum pump (35), so that the softened plastic sheet (34) is closely attached to the formed ceramic membrane, thereby further shaping the ceramic membrane; S6: After solidification is completed and the temperature drops, the first cylinder (15) is started. The first cylinder (15) contracts to cause the first connecting rod (13) to drive the carrier plate (12) to move downward. Due to the arrangement of the telescopic sleeve (38) and the second spring (37), when the carrier plate (12) is separated from the second shell (4), the compression amount of the second spring (37) reaches a limit, and then the connecting plate (17) drives the pressing plate (27) to move downward through the second connecting rod (16), so that the pressing plate (27) pushes the solidified raw material to move downward. At this time, the external air enters the second shell (4), flows into the gap between the plastic plate (34) and the ceramic membrane through a plurality of water-proof and air-permeable holes arranged on the plastic plate (34), and squeezes the close fit between the plastic plate (34) and the ceramic membrane, so that the ceramic membrane and the plastic plate (34) are separated, and finally the solidified raw material is completely separated from the insertion rod (25), and then the solidified raw material is taken out from the carrier plate (12).

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