Foamed ceramic processing device and processing technology

Abstract

The invention discloses a foamed ceramic processing device and processing technology, and belongs to the technical field of foamed ceramic processing, the foamed ceramic processing device comprises a first slurry wrapping conveying line, a second slurry wrapping conveying line and a forming conveying line, the first slurry wrapping conveying line and the second slurry wrapping conveying line each comprise a slurry wrapping rack, and a flattening assembly and a slurry wrapping assembly are sequentially arranged on each slurry wrapping rack in the conveying direction; the end, away from the pulp wrapping assembly, of the flattening assembly is connected with an outlet of the mixing box, the forming conveying line comprises a forming rack, and a forming conveying net belt is installed on the forming rack. A discharging port of the first wrapping slurry conveying line, a first compaction assembly, a discharging port of the second wrapping slurry conveying line, a second compaction assembly, a sweeping part and a drying chamber are sequentially arranged over the forming conveying mesh belt in the conveying direction of the forming conveying mesh belt, and a rack and a fan are arranged in the drying chamber. The production cost is reduced, the foamed ceramic filter screen of a double-layer structure can be conveniently produced, and meanwhile the concentricity of the two layers of foamed ceramic filter screens can be guaranteed.

Description

Technical Field

[0001] The present invention belongs to the technical field of foamed ceramic processing, and particularly relates to a foamed ceramic processing device and a processing technology. Background Art

[0002] The foamed ceramic filter is generally made by filling polyurethane foam sponge with ceramic slurry, then extruding the slurry, and leaving the ceramic material coated around the foam sponge. After sintering at high temperature, the polyurethane foam sponge decomposes by heat, and the remaining foamed ceramic product is the foamed ceramic filter. It has a porous structure and can efficiently filter inclusions in molten metal, improving the quality and yield of metal castings.

[0003] The ceramic slurry is composed of ceramic powder and water. The ceramic powder generally consists of a basic material and auxiliary materials. The basic material generally includes three kinds: silicon carbide, silicon dioxide, and alumina. The auxiliary materials are a binder and a dispersant. Among them, silicon carbide has excellent strength, high-temperature impact resistance, and chemical corrosion resistance, and can withstand high temperatures up to about 1600 degrees Celsius. Therefore, they are suitable for the casting of all copper alloys and cast iron. The foamed ceramic filter can significantly improve the quality of cast iron parts and reduce the rejection rate. It can also be used in the continuous casting and rolling process and can be manufactured in all standard sizes and different thicknesses.

[0004] In the prior art, most of the polyurethane foam sponges used in the production of foamed ceramic filters are imported materials, resulting in high production costs of foamed ceramic filters. In addition, in the production process of the double-layer structure foamed ceramic filter, there is a problem of low concentricity between the upper and lower layers of foamed ceramics.

[0005] In order to reduce the production cost of the foamed ceramic filter and improve the concentricity between the upper and lower layers of foamed ceramics in the double-layer structure foamed ceramic filter, it is necessary to provide a new foamed ceramic filter processing device and processing method. Summary of the Invention

[0006] The purpose of the present invention is to provide a foamed ceramic processing device and a processing technology, which can reduce the production cost, facilitate the production of a double-layer structure foamed ceramic filter, and at the same time ensure the concentricity of the two-layer foamed ceramic filter.

[0007] To achieve the above object, the present invention provides a foamed ceramic processing device, including a first slurry coating conveyor line, a second slurry coating conveyor line, and a forming conveyor line. The first slurry coating conveyor line and the second slurry coating conveyor line both include a slurry coating frame. Along the conveying direction on the slurry coating frame, a flattening component and a slurry coating component are sequentially arranged. One end of the flattening component away from the slurry coating component is connected to the outlet of the mixing box. The forming conveyor line includes a forming frame, on which a forming conveyor mesh belt is installed. On the conveying surface of the forming conveyor mesh belt, uniformly distributed convex columns are provided, and the convex columns are adapted to the socket structures on the bottom surface of the forming box. A gear is fixedly connected to the curved outer wall of the forming box. Above the forming conveyor mesh belt along its conveying direction, the discharge port of the first slurry coating conveyor line, a first compaction component, the discharge port of the second slurry coating conveyor line, a second compaction component, a leveling member, and a drying chamber are sequentially arranged. Inside the drying chamber, a rack and a fan that are relatively fixed on the forming frame are provided, and the rack is adapted to the gear structure.

[0008] Preferably, the flattening component includes a flattening conveyor mesh belt installed on the frame. Along the conveying direction above the flattening conveyor mesh belt, a flattening member and a first feeder are sequentially arranged. The distance from the bottom end of the flattening member to the conveying surface of the flattening conveyor mesh belt is not greater than 1.5 times the maximum particle size of the foam particles conveyed on the flattening conveyor mesh belt.

[0009] Preferably, the slurry coating component includes a wetting conveyor mesh belt and a powder sticking conveyor mesh belt that are alternately connected in sequence along the conveying direction. The sum of the number of the wetting conveyor mesh belt and the powder sticking conveyor mesh belt is an odd number not less than 5. Spray devices are provided on both the upper and lower sides of the wetting conveyor mesh belt and are oriented towards the wetting conveyor mesh belt. The height of the powder sticking conveyor mesh belt gradually decreases along the conveying direction. Uniformly distributed second feeders are provided above the powder sticking conveyor mesh belt. A first feeding and conveying component is provided at the connection between the conveying end of the wetting conveyor mesh belt and the conveying starting end of the powder sticking conveyor mesh belt. A second feeding and conveying component is provided at the connection between the wetting conveyor mesh belt and the flattening conveyor mesh belt. A third feeding and conveying component is provided at the connection between the wetting conveyor mesh belt and the forming conveyor mesh belt.

[0010] Preferably, the first feeding and conveying component, the second feeding and conveying component, and the third feeding and conveying component all include a third feeder and a dial rod.

[0011] Preferably, the top surface of the mixing box is provided with a feeding port and a stirring motor. Inside the mixing box, a stirring roller connected to the stirring motor is provided. The bottom of the mixing box is provided with a discharge pipe, and the bottom of the discharge pipe is provided with the outlet. A valve is provided inside the discharge pipe.

[0012] Preferably, the forming box is a hollow cylindrical foam box. A material groove is provided on the top surface of the forming box, and the diameter of the material groove is not greater than the width of the discharge port of the first slurry coating conveyor line and the width of the discharge port of the second slurry coating conveyor line.

[0013] Preferably, both the first compaction assembly and the second compaction assembly include a lifting pressure plate. Both ends of the lifting pressure plate are fixedly connected to the forming machine frame through lifting power devices, and a pressing block adapted to the structure of the material groove is provided on the bottom surface of the lifting pressure plate.

[0014] A processing technology for producing foam ceramics by using a foam ceramic processing device includes the following steps:

[0015] Step 1: Adsorbing ceramic powder: Fill foam particles with different particle sizes into the mixing boxes on the first slurry coating conveyor line and the second slurry coating conveyor line, and then fill ceramic powder into the mixing boxes. After stirring evenly, a mixed material is obtained. The particle size range of the foam particles in the mixing box on the second slurry coating conveyor line is larger than the particle size range of the foam particles in the mixing box on the first slurry coating conveyor line;

[0016] Step 2: Levelling: Transfer the mixed material to the levelling assembly to level the foam particles contaminated with ceramic powder;

[0017] Step 3: Slurry coating: Transfer the levelled foam particles to the slurry coating assembly to make the thickness of the ceramic slurry on the surface of the foam particles meet the use requirements. Subsequently, the slurry coating assembly on the first slurry coating conveyor line transfers the slurry-coated foam particles to the discharge port of the first slurry coating conveyor line, and the slurry coating assembly on the second slurry coating conveyor line transfers the slurry-coated foam particles to the discharge port of the second slurry coating conveyor line;

[0018] Step 4: Forming: Manually insert the forming box onto the convex columns on the forming conveyor belt. The forming box is sequentially conveyed by the forming conveyor belt through the discharge port of the first slurry coating conveyor line, the first compaction assembly, the discharge port of the first slurry coating conveyor line, the second compaction assembly, the sweeping member, and the drying chamber. The first compaction assembly and the second compaction assembly press down the foam particles in the forming box by a certain distance and then reset to prevent an empty material area from appearing in the forming box. The sweeping member sweeps away the excess foam particles on the top surface of the forming box, and the drying chamber can dry the ceramic slurry on the surface of the foam particles to obtain a shaped blank;

[0019] Step 5: Put the shaped blank together with the forming box into a high-temperature furnace for sintering to obtain a foam ceramic filter mesh product;

[0020] Step 6: Pack the foam ceramic filter mesh.

[0021] Therefore, the foam ceramic processing device and processing technology with the above structure of the present invention have the following beneficial effects:

[0022] 1. Using foam particles with different particle sizes instead of polyurethane foam sponges can effectively reduce the production cost of foam ceramic filters.

[0023] 2. Using the first slurry coating conveyor line and the second slurry coating conveyor line to coat foam particles with different particle size ranges, and using the forming conveyor line to produce a foam ceramic filter with a double-layer structure, while ensuring the concentricity of the two layers of foam ceramic filters.

[0024] The technical solution of the present invention will be further described in detail below with reference to the drawings and embodiments. Description of the Drawings

[0025] Figure 1 It is a schematic structural diagram of an embodiment of a foam ceramic processing device of the present invention;

[0026] Figure 2 It is a schematic structural diagram of an embodiment of the first slurry coating conveyor line in a foam ceramic processing device of the present invention;

[0027] Figure 3 It is a schematic structural diagram of an embodiment of the forming conveyor line in a foam ceramic processing device of the present invention;

[0028] Figure 4 It is a schematic structural diagram of an embodiment of the forming box in a foam ceramic processing device of the present invention;

[0029] Figure 5 It is a schematic structural diagram of an embodiment of the first feeding component in a foam ceramic processing device of the present invention.

[0030] In the figure: 1. The first slurry coating conveyor line; 101. The slurry coating frame; 102. The flattening component; 1021. The mixing box; 1022. The flattening conveyor belt; 1023. The flattening part; 1024. The first cloth feeder; 103. The slurry coating component; 1031. The wetting conveyor belt; 1032. The powder sticking conveyor belt; 1033. The spraying device; 1034. The second cloth feeder; 1035. The first feeding component; 10351. The third cloth feeder; 10352. The dial rod; 10353. The dialing blade; 1036. The second feeding component; 1037. The third feeding component; 2. The second slurry coating conveyor line; 3. The forming conveyor line; 301. The forming frame; 302. The forming conveyor belt; 303. The convex column; 304. The forming box; 305. The first compaction component; 3051. The lifting pressing plate; 3052. The lifting power device; 3053. The pressing block; 306. The second compaction component; 307. The drying chamber; 308. The sweeping part; 4. The gear; 5. The rack; 6. The fan; 7. The feeding port; 8. The stirring motor; 9. The discharge pipe; 10. The material tank. Detailed Embodiments

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Embodiment

[0034] Referring to Figures 1-5 As shown, this embodiment provides a foamed ceramic processing device, including a first slurry-wrapping conveyor line 1, a second slurry-wrapping conveyor line 2, and a forming conveyor line 3. Both the first slurry-wrapping conveyor line 1 and the second slurry-wrapping conveyor line 2 include a slurry-wrapping machine frame 101, and a flattening component 102 and a slurry-wrapping component 103 are sequentially arranged on the slurry-wrapping machine frame 101 along the conveying direction. One end of the flattening component 102 away from the slurry-wrapping component 103 is connected to the outlet of the mixing box 1021, and the mixing box 1021 is used to uniformly mix foam particles and ceramic powder, where the foam particles are foam particles with different particle sizes, and the particle size range of the foam particles is selected according to the filtering requirements. The forming conveyor line 3 includes a forming machine frame 301, and a forming conveyor belt 302 is installed on the forming machine frame 301. Uniformly distributed convex columns 303 are arranged on the conveying surface of the forming conveyor belt 302, and the convex columns 303 are adapted to the jacking structures on the bottom surface of the forming box 304. The convex columns 303 and the jacks are used to realize the rotational connection between the forming box 304 and the urban conveyor belt. A gear 4 is fixedly connected to the curved outer wall of the forming box 304. Above the forming conveyor belt 302 along its conveying direction, there are sequentially arranged the discharge port of the first slurry-wrapping conveyor line 1, the first compaction component 305, the discharge port of the second slurry-wrapping conveyor line 2, the second compaction component 306, a leveling part 308, and a drying chamber 307. The first compaction component 305 and the second compaction component 306 are used to prevent blank areas from appearing in the forming box 304. A rack 5 and a fan 6 that are relatively fixed to the forming machine frame 301 are arranged in the drying chamber 307. The rack 5 is adapted to the structure of the gear 4, and the cooperation of the rack 5 and the gear 4 can drive the rotation of the forming box 304.

[0035] During use, foam particles with different particle sizes are filled into the mixing box 1021 on the first slurry coating conveying line 1 and the mixing box 1021 on the second slurry coating conveying line 2. The particle size range of the foam particles in the mixing box 1021 on the second slurry coating conveying line 2 is larger than that of the foam particles in the mixing box 1021 on the first slurry coating conveying line 1. The foam particles on the first slurry coating conveying line 1 and the second slurry coating conveying line 2 are leveled at the leveling assembly 102, wrapped with a suitable thickness of ceramic slurry at the slurry coating assembly 103, and dried and shaped on the shaping conveying line 3. The fan 6 can achieve rapid drying of the ceramic slurry on the surface of the foam particles, and the combined use of the gear 4 and the rack 5 can ensure the uniformity of drying. The mesh size of the shaping conveying mesh belt 302 is larger than the maximum size of the foam particles used, so that the excess foam particles can leak out for recycling.

[0036] During the use of this application, two polyurethane foam sponges can also be stacked in the shaping box 304. The shaping box 304 is used to ensure the concentricity and product performance of the two polyurethane foam sponges, and then the shaping conveying line 3 is used to convey them. During the conveying process, the combined use of the rack 5 and the gear 4 enables the two stacked polyurethane foam sponges to rotate synchronously, thereby ensuring that the stacked polyurethane foam sponges can be dried uniformly and efficiently in the drying chamber 307.

[0037] In a further preferred solution, the leveling assembly 102 includes a leveling conveying mesh belt 1022 installed on the frame. The mesh size of the leveling conveying mesh belt 1022 is smaller than the minimum size of the foam particles it conveys, preventing the foam particles from leaking out from the leveling conveying mesh belt 1022, and at the same time enabling the excess ceramic powder to leak out for recycling of the ceramic powder. Above the leveling conveying mesh belt 1022 along its conveying direction, a leveling member 1023 and a first cloth applicator 1024 are arranged in sequence. The first cloth applicator 1024 is used to sprinkle ceramic powder onto the leveling conveying mesh belt 1022. The distance from the bottom end of the leveling member 1023 to the conveying surface of the leveling conveying mesh belt 1022 is not greater than 1.5 times the maximum particle size of the foam particles conveyed on the leveling conveying mesh belt 1022.

[0038] During use, the leveling member 1023 can be connected to the frame through a lifting and adjusting cylinder, which is convenient for adjusting the height of the leveling member 1023 according to the maximum particle size of the foam particles. After the foam passes through the leveling member 1023, the first cloth applicator 1024 can be used to fill the lack of ceramic powder on the surface of the foam particles caused by contact with the leveling member 1023.

[0039] Further preferred solution, the slurry wrapping assembly 103 includes a wetting conveyor mesh belt 1031 and a powder sticking conveyor mesh belt 1032 that are alternately connected in sequence along its conveying direction. The sum of the numbers of the wetting conveyor mesh belt 1031 and the powder sticking conveyor mesh belt 1032 is an odd number not less than 5. Spray devices 1033 are arranged on both the upper and lower sides of the wetting conveyor mesh belt 1031 and are arranged towards the wetting conveyor mesh belt 1031. The spray devices 1033 are used to wet the surface of the foam particles, and then turn the ceramic powder on the surface of the foam particles into ceramic slurry. The spray devices 1033 may include a water tank and water mist nozzles communicated with the water tank, and the water mist nozzles are arranged towards the wetting conveyor mesh belt 1031. The height of the powder sticking conveyor mesh belt 1032 gradually decreases along its conveying direction. A second distributor 1034 is arranged directly above the powder sticking conveyor mesh belt 1032. The height of the powder sticking conveyor mesh belt 1032 is designed such that the foam particles on the powder sticking conveyor mesh belt 1032 can roll, so that the ceramic powder distributed by the second distributor 1034 can be evenly distributed on the surface of the foam particles.

[0040] A first feeding component 1035 is arranged at the connection between the conveying end of the wetting conveyor mesh belt 1031 and the conveying start end of the powder sticking conveyor mesh belt 1032. The first feeding component 1035 can ensure that the foam particles smoothly move from the wetting conveyor mesh belt 1031 to the powder sticking conveyor mesh belt 1032. A second feeding component 1036 is arranged at the connection between the wetting conveyor mesh belt 1031 and the flattening conveyor mesh belt 1022. The second feeding component 1036 can ensure that the foam particles smoothly move from the flattening conveyor mesh belt 1022 to the wetting conveyor mesh belt 1031. A third feeding component 1037 is arranged at the connection between the wetting conveyor mesh belt 1031 and the forming conveyor mesh belt 302. The third feeding component 1037 can ensure that the foam particles smoothly move from the wetting conveyor mesh belt 1031 to the forming conveyor mesh belt 302.

[0041] During use, the mesh hole sizes of the wetting conveyor mesh belt 1031 and the powder sticking conveyor mesh belt 1032 are smaller than the minimum size of the foam particles they convey, so as to prevent the foam particles from leaking out from the flattening conveyor mesh belt 1022, and at the same time enable the excess water or ceramic powder to leak out for recycling. Buffer plates are arranged between the flattening conveyor mesh belt 1022, the wetting conveyor mesh belt 1031, and the powder sticking conveyor mesh belt 1032 to prevent the foam particles from getting stuck at the connection between any two conveyor mesh belts. The slurry wrapping assembly 103 can wrap a certain thickness of ceramic slurry on the foam particles. The first feeding component 1035, the second feeding component 1036, and the third feeding component 1037 can ensure that the foam particles smoothly move from one conveyor mesh belt to another conveyor mesh belt.

[0042] In a further preferred embodiment, the first feeding assembly 1035, the second feeding assembly 1036 and the third feeding assembly 1037 all include a third distributor 10351 and a lever 10352. The first distributor 1024, the second distributor 1034 and the third distributor 10351 are all prior art and may include a material box fixed on the batter coating frame 101, and a material distribution opening is provided at the bottom of the material box. A material distribution shaft adapted to its structure is provided in the material distribution opening, one end of the material distribution shaft is connected to a material distribution motor fixed on the side wall of the material box, and a material distribution groove evenly distributed along the circumferential direction is provided on the curved side wall of the material distribution shaft. The lever 10352 is located directly below the material distribution opening, and the lever 10352 is arranged perpendicular to the material conveying direction. Both ends of the lever 10352 are rotatably connected to the batter coating frame 101, and one end of the lever 10352 is connected to a toggle motor fixed on the batter coating frame 101. The curved side wall of the shifting rod 10352 is provided with shifting leaves 10353 evenly distributed along the circumferential direction, and the shifting leaves 10353 can be composed of a plurality of rubber rods.

[0043] When in use, the cloth motor drives the cloth shaft to rotate. When the cloth trough rotates to a downward position with the cloth shaft, the ceramic powder in the cloth trough can be sprinkled onto the lever 10352 and the paddle 10353. The lever 10352 rotates under the drive of the paddle motor, and the paddle 10353 rotates with the lever 10352, thereby realizing the delivery of the foam particles. During delivery, since the paddle 10353 is adhered with ceramic powder, it can effectively prevent the paddle 10353 from knocking off the ceramic powder or ceramic slurry on the surface of the foam particles when it comes into contact with the foam particles.

[0044] In a further preferred embodiment, the top surface of the mixing box 1021 is provided with a feed inlet 7 and a stirring motor 8, a stirring roller connected to the stirring motor 8 is provided inside the mixing box 1021, a discharge pipe 9 is provided at the bottom of the mixing box 1021, an outlet is provided at the bottom of the discharge pipe 9, and a valve is provided inside the discharge pipe 9. When in use, the stirring motor 8 can drive the stirring rod to rotate to achieve uniform mixing of the foam particles and the ceramic powder, and the valve can control the discharge speed of the mixing box 1021.

[0045] In a further preferred embodiment, the molding box 304 is a hollow cylindrical foam box. The diameter of the hollow hole on the molding box 304 should be smaller than the smallest particle of the foam particles to prevent the foam particles from leaking out of the molding box 304. The hollow form can also facilitate the drying of the ceramic slurry. The top surface of the molding box 304 is provided with a material trough 10. The diameter of the material trough 10 is not greater than the width of the discharge port of the first paste conveying line 1 and the width of the discharge port of the second paste conveying line 2. The material trough 10 is used to hold the foam particles after the paste is coated, thereby achieving the shaping of the foam ceramic.

[0046] Further preferred solution: both the first compaction component 305 and the second compaction component 306 include a lifting pressure plate 3051. Both ends of the lifting pressure plate 3051 are fixedly connected to the forming frame 301 through a lifting power device 3052. A pressing block 3053 adapted to the structure of the material tank 10 is provided on the bottom surface of the lifting pressure plate 3051. The pressing block 3053 can perform a lifting motion under the action of the lifting power device 3052. After descending, it can compact the foam particles in the forming box 304. After rising, the foam particles can recover from micro-deformation under their own action, preventing the occurrence of a void area in the forming box 304.

[0047] The processing technology for producing foam ceramics using a foam ceramic processing device includes the following steps:

[0048] Step 1: Adsorbing ceramic powder: Fill foam particles with different particle sizes into the mixing boxes 1021 on the first slurry-wrapping conveyor line 1 and the mixing boxes 1021 on the second slurry-wrapping conveyor line 2. Then fill ceramic powder into the mixing boxes 1021 and stir evenly to obtain a mixed material. The particle size range of the foam particles in the mixing box 1021 on the second slurry-wrapping conveyor line 2 is larger than the particle size range of the foam particles in the mixing box 1021 on the first slurry-wrapping conveyor line 1; the particle size range of the foam particles is selected according to the filtration requirements.

[0049] Step 2: Spreading flat: Transfer the mixed material to the spreading component 102 to spread the foam particles contaminated with ceramic powder flat.

[0050] Step 3: Slurry-wrapping: Transfer the spread foam particles to the slurry-wrapping component 103 to make the thickness of the ceramic slurry on the surface of the foam particles reach the usage requirements. Subsequently, the slurry-wrapping component 103 on the first slurry-wrapping conveyor line 1 transfers the slurry-wrapped foam particles to the discharge port of the first slurry-wrapping conveyor line 1, and the slurry-wrapping component 103 on the second slurry-wrapping conveyor line 2 transfers the slurry-wrapped foam particles to the discharge port of the second slurry-wrapping conveyor line 2.

[0051] Step 4: Forming: Manually insert the forming box 304 onto the convex posts 303 on the forming conveyor belt 302. The forming box 304 is conveyed by the forming conveyor belt 302 and sequentially passes through the discharge port of the first slurry-wrapping conveyor line 1, the first compaction component 305, the discharge port of the first slurry-wrapping conveyor line 1, the second compaction component 306, the sweeping component 308, and the drying chamber 307. The first compaction component 305 and the second compaction component 306 press down the foam particles in the forming box 304 by a certain distance and then reset to prevent the occurrence of a void area in the forming box 304. The sweeping component 308 sweeps away the excess foam particles on the top surface of the forming box 304. The drying chamber 307 can dry the ceramic slurry on the surface of the foam particles to obtain a shaped embryo.

[0052] Step 5: Put the shaped embryo body together with the molding box 304 into a high-temperature furnace for sintering to obtain a foamed ceramic filter mesh product;

[0053] Step 6: Pack the foamed ceramic filter mesh.

[0054] Therefore, by adopting the foamed ceramic processing device and processing technology with the above structure, the present invention can reduce production costs, facilitate the production of a foamed ceramic filter mesh with a double-layer structure, and at the same time ensure the concentricity of the two-layer foamed ceramic filter mesh.

[0055] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present invention.

[0056] The embodiments described above are only for describing the preferred mode of the present invention, rather than limiting the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A foam ceramic processing device, characterized in that: It includes a first slurry coating conveyor line (1), a second slurry coating conveyor line (2) and a forming conveyor line (3). The first slurry coating conveyor line (1) and the second slurry coating conveyor line (2) both include a slurry coating machine frame (101). Along the conveying direction on the slurry coating machine frame (101), there are successively arranged a flattening assembly (102) and a slurry coating assembly (103). One end of the flattening assembly (102) far from the slurry coating assembly (103) is connected to the outlet of a mixing box (1021). The forming conveyor line (3) includes a forming machine frame (301). A forming conveyor net belt (302) is installed on the forming machine frame (301). On the conveying surface of the forming conveyor net belt (302), there are evenly distributed convex columns (303), and the convex columns (303) are adapted to the jacking hole structure on the bottom surface of a forming box (304). A gear (4) is fixedly connected to the curved outer wall of the forming box (304). Above the forming conveyor net belt (302) along its conveying direction, there are successively arranged the discharge port of the first slurry coating conveyor line (1), a first compaction assembly (305), the discharge port of the second slurry coating conveyor line (2), a second compaction assembly (306), a sweeping member (308) and a drying chamber (307). Inside the drying chamber (307), there are a rack (5) and a fan (6) relatively fixed on the forming machine frame (301), and the rack (5) is adapted to the gear (4) in structure.

2. The foam ceramic processing device according to claim 1, characterized in that: The flattening assembly (102) includes a flattening conveyor net belt (1022) installed on the machine frame. Above the flattening conveyor net belt (1022) along its conveying direction, there are successively arranged a flattening member (1023) and a first cloth distributor (1024). The distance from the bottom end of the flattening member (1023) to the conveying surface of the flattening conveyor net belt (1022) is not greater than 1.5 times the maximum particle size of the foam particles conveyed on the flattening conveyor net belt (1022).

3. The foam ceramic processing device according to claim 1, characterized in that: The slurry coating assembly (103) includes a wetting conveyor net belt (1031) and a powder sticking conveyor net belt (1032) which are alternately connected in sequence along its conveying direction. The sum of the number of the wetting conveyor net belt (1031) and the powder sticking conveyor net belt (1032) is an odd number not less than 5. Spray devices (1033) facing the wetting conveyor net belt (1031) are arranged on both the upper and lower sides of the wetting conveyor net belt (1031). The height of the powder sticking conveyor net belt (1032) gradually decreases along its conveying direction. Uniformly distributed second cloth distributors (1034) are arranged directly above the powder sticking conveyor net belt (1032). A first feeding and conveying assembly (1035) is arranged at the connection between the conveying end of the wetting conveyor net belt (1031) and the conveying starting end of the powder sticking conveyor net belt (1032). A second feeding and conveying assembly (1036) is arranged at the connection between the wetting conveyor net belt (1031) and the flattening conveyor net belt (1022). A third feeding and conveying assembly (1037) is arranged at the connection between the wetting conveyor net belt (1031) and the forming conveyor net belt (302).

4. The foam ceramic processing device according to claim 3, characterized in that: The first feeding component (1035), the second feeding component (1036), and the third feeding component (1037) each include a third cloth feeder (10351) and a lever (10352).

5. The foam ceramic processing device according to claim 1, characterized in that: The top surface of the mixing box (1021) is provided with a feeding port (7) and a stirring motor (8). A stirring roller connected to the stirring motor (8) is provided inside the mixing box (1021). The bottom of the mixing box (1021) is provided with a discharge pipe (9). The bottom of the discharge pipe (9) is provided with the outlet, and a valve is provided inside the discharge pipe (9).

6. The foam ceramic processing device according to claim 1, wherein: The forming box (304) is a hollow cylindrical foam box. The top surface of the forming box (304) is provided with a material groove (10). The diameter of the material groove (10) is not greater than the discharge port width of the first slurry-wrapping conveyor line (1) and the discharge port width of the second slurry-wrapping conveyor line (2).

7. The foam ceramic processing device according to claim 6, wherein: The first compaction component (305) and the second compaction component (306) each include a lifting pressing plate (3051). Both ends of the lifting pressing plate (3051) are fixedly connected to the forming machine frame (301) through a lifting power device (3052). A pressing block (3053) adapted to the structure of the material groove (10) is provided on the bottom surface of the lifting pressing plate (3051).

8. The processing technology for producing foam ceramics using the foam ceramic processing device according to any one of claims 1-7, characterized in that: It includes the following steps: Step 1: Adsorbing ceramic powder: Fill foam particles with different particle sizes into the mixing box (1021) on the first slurry-wrapping conveyor line (1) and the mixing box (1021) on the second slurry-wrapping conveyor line (2), and then fill ceramic powder into the mixing box (1021). After stirring evenly, a mixed material is obtained. The particle size range of the foam particles in the mixing box (1021) on the second slurry-wrapping conveyor line (2) is larger than the particle size range of the foam particles in the mixing box (1021) on the first slurry-wrapping conveyor line (1). Step 2: Levelling: Transfer the mixed material to the levelling component (102) to level the foam particles contaminated with ceramic powder. Step 3: Slurry-wrapping: Transfer the levelled foam particles to the slurry-wrapping component (103) so that the thickness of the ceramic slurry on the surface of the foam particles meets the use requirements. Subsequently, the slurry-wrapping component (103) on the first slurry-wrapping conveyor line (1) transfers the slurry-wrapped foam particles to the discharge port of the first slurry-wrapping conveyor line (1), and the slurry-wrapping component (103) on the second slurry-wrapping conveyor line (2) transfers the slurry-wrapped foam particles to the discharge port of the second slurry-wrapping conveyor line (2). Step 4: Molding: Manually insert the molding box (304) onto the convex posts (303) on the molding conveyor belt (302). The molding box (304) is conveyed by the molding conveyor belt (302) and passes successively through the discharge port of the first slurry coating conveyor line (1), the first compaction assembly (305), the discharge port of the first slurry coating conveyor line (1), the second compaction assembly (306), the leveling member (308), and the drying chamber (307). The first compaction assembly (305) and the second compaction assembly (306) press down the foam particles in the molding box (304) by a certain distance and then reset to prevent an empty material area from appearing in the molding box (304). The leveling member (308) sweeps away the excess foam particles on the top surface of the molding box (304). The drying chamber (307) can dry the ceramic slurry on the surface of the foam particles to obtain a shaped blank body; Step 5: Place the shaped blank body together with the molding box (304) into a high-temperature furnace for sintering to obtain a foam ceramic filter product; Step 6: Pack the foam ceramic filter.

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