Filtering, washing and drying machine

Abstract

The invention provides a filtering, washing and drying machine and belongs to the technical field of machinery. The filtering, washing and drying machine solves the problem that materials of an existing filtering, washing and drying machine can enter a gap between a kettle body and a base plate. The filtering, washing and drying machine comprises a kettle body, a sealing assembly and a movable base plate, the inner end of the base plate is sleeved with a sealing ring, when the base plate is fixedly connected into the kettle body, the sealing ring is attached to the inner side wall of the kettle body, the sealing assembly is arranged between the outer end of the base plate and the kettle body in a sealed mode, and a balance gap is formed among the kettle body, the base plate, the sealing ring and the sealing assembly. And the chassis or the kettle body is provided with a balance port for communicating the balance gap with the outside. The filtering, washing and drying machine has the advantages that materials cannot enter a gap between the base plate and the kettle body, and the product quality is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of machinery and relates to a filtration washing dryer. Background Art

[0002] A three-in-one kettle is a device that can complete the three processes of filtration, washing, and drying simultaneously in the same container. It is widely used in solid-liquid separation, solid washing, solid drying, and solid discharging in industries such as pharmaceuticals, chemicals, pesticides, and food. The entire production process from the feeding of the crystalline solid-liquid suspension to the discharge after the raw materials are dried is completed in the three-in-one kettle.

[0003] For an existing three-in-one kettle, for example, a Chinese patent document discloses a three-in-one kettle structure [Patent No.: 201610018042.7; Publication No.: CN105435502B]. It includes a kettle body. A lower head is arranged directly below the bottom end face of the kettle body. A suction filtration port is arranged on the lower head, and the lower head is the filtration heating chassis. An upper internal gear ring is arranged at the bottom of the kettle body, and a lower internal gear ring is correspondingly arranged directly below the upper internal gear ring. The central part of the lower internal gear ring is the lower head. In a sealed state, the upper outer ring surface of the lower head closely adheres to the inner ring surface of the upper internal gear ring and ensures sealing. A vertical first oil cylinder is externally connected to the bottom of the lower internal gear ring, and the first oil cylinders are evenly distributed at corresponding positions outside the kettle body. The first oil cylinder can drive the lower internal gear ring to move vertically.

[0004] For the three-in-one kettle with this structure, a sealing ring is arranged on the circumferential outer side of the top of the lower head. By pulling the lower head upward with the first oil cylinder, the lower head enters the bottom of the kettle body. The sealing ring fits with the circumferential inner side wall of the bottom of the kettle body, and the upper internal gear ring and the lower internal gear ring mesh with each other to achieve sealing. However, when this three-in-one kettle is in use, there are vacuum and pressurization situations inside the kettle body, resulting in different pressures on the upper and lower sides of the sealing ring. The sealing ring will be overly deformed, making it impossible for the sealing ring to fit with the circumferential inner side wall of the bottom of the kettle body, causing some materials to enter the gap between the lower head and the kettle body. There is a problem that this part of the materials will be mixed into the next batch of materials, which will contaminate the next batch of materials and reduce the product quality. Moreover, during the opening and closing process of the lower head, this part of the materials has the problem of being embedded between the upper internal gear ring and the lower internal gear ring, reducing the sealing between the upper internal gear ring and the lower internal gear ring and the sealing effect of the three-in-one kettle, thus reducing the product quality. Summary of the Invention

[0005] The object of the present invention is to address the above problems existing in the prior art and propose a filtration washing dryer, and the technical problem to be solved is how to prevent materials from entering the gap between the chassis and the kettle body and improve the product quality.

[0006] The object of the present invention can be achieved by the following technical solutions: a filtration washing and drying machine, comprising a kettle body, a sealing assembly and a movable chassis. An inner end of the chassis is sleeved with a sealing ring. It is characterized in that when the chassis is fixedly connected to the kettle body, the sealing ring abuts against an inner side wall of the kettle body. The sealing assembly is sealingly arranged between an outer end of the chassis and the kettle body. A balance gap is formed among the kettle body, the chassis, the sealing ring and the sealing assembly. A balance port for communicating the balance gap with the outside is provided on the chassis or the kettle body.

[0007] The chassis moves into the kettle body and is fixed. A balance gap is formed among the kettle body, the chassis, the sealing ring and the sealing assembly. An inner cavity for containing materials is provided inside the kettle body. The inner cavity of the kettle body and the balance port are connected to the same pipe, and the inner cavity of the kettle body and the balance gap are simultaneously inflated or evacuated, so that the inner cavity of the kettle body and the balance gap are maintained at the same air pressure, the sealing ring will not be excessively deformed, the sealing ring always abuts against the inner side wall of the kettle body, the materials in the inner cavity of the kettle body will not enter the balance gap, that is, will not enter the gap between the chassis and the kettle body, the filtration washing and drying machine is convenient to clean, there is no dead angle, the materials of the previous batch processed by the filtration washing and drying machine will not be mixed into the materials of the next batch, the product quality is improved, and the problem that the chassis is stuck due to the existence of materials in the balance gap during movement is avoided, the sealing performance is improved, and the product quality is improved. The sealing ring has a sealing function, but a greater function is to block materials and prevent materials from entering the balance gap. The sealing component is the one that truly plays the sealing role.

[0008] In the above filtration washing and drying machine, the balance gap is located between a circumferential outer side wall of the chassis and a circumferential inner side wall of the bottom of the kettle body, and the balance gap is annular. There is a gap between the chassis and the kettle body, which makes the chassis move smoothly relative to the kettle body, and the chassis will not be stuck. Moreover, this gap is the balance gap, so that the balance gap has a dual function.

[0009] In the above filtration washing and drying machine, the balance gap is located directly below the sealing ring. The kettle body is arranged vertically, the chassis is located at the bottom of the kettle body, and the balance gap is located directly below the sealing ring, so that the sealing ring can better prevent materials from entering the balance gap between the chassis and the kettle body.

[0010] In the above filtration washing and drying machine, a balance cavity recessed towards the center of the chassis is provided on the circumferential outer side wall of the chassis. The balance cavity is communicated with the balance gap, and the balance port is adjacently arranged to the balance cavity. The setting of the balance cavity is equivalent to increasing the volume of the balance gap at the balance port, playing a buffering role. When pressurizing or evacuating through the balance port, it can be more smoothly transmitted to the balance gap through the balance cavity, making the pressure change in the balance gap more stable and improving the stability.

[0011] In the above-mentioned filter-washing-drying machine, the sealing assembly includes a sealing gasket, a first sealing portion protruding circumferentially outward from the bottom of the kettle body, and a second sealing portion protruding circumferentially outward from the bottom of the chassis. When the chassis is fixedly connected to the kettle body, the sealing gasket is tightly sealed between the first sealing portion and the second sealing portion. This structure increases the sealing area and improves the sealing effect of the sealing assembly. In actual production, the first sealing portion and the second sealing portion can also be meshed and sealed through a concave-convex structure.

[0012] In the above-mentioned filter-washing-drying machine, the corners at the inner circle of the first sealing portion are rounded. The inner circle of the sealing gasket extends to the corners at the inner circle of the first sealing portion, and there is a gap between the inner circle of the sealing gasket and the corners at the inner circle of the first sealing portion. The inner circle of the sealing gasket directly bears the pressure change. This structure enables the inner circle of the sealing gasket to deform better, and the sealing gasket plays a better sealing effect, improving the sealing performance.

[0013] In the above-mentioned filter-washing-drying machine, a filtering cavity is recessed on the end face at the top of the chassis. The chassis also has a discharge pipe that connects the filtering cavity to the outside. A filtering component is fixedly connected to the top of the chassis, and the circumferential outer side of the filtering component extends to the circumferential edge at the top of the chassis. The sealing ring is located between the chassis and the filtering component. After the materials in the inner cavity of the kettle body are filtered by the filtering component, the filtrate enters the filtering cavity and is discharged through the discharge pipe. The sealing ring not only blocks the materials from entering the balance gap, but also seals the gap between the chassis and the filtering component; the filtering component is a conventional structure, and its specific structure will not be elaborated.

[0014] In the above-mentioned filter-washing-drying machine, the chassis also has a heat exchange interlayer. The top of the heat exchange interlayer is attached to the bottom wall of the filtering cavity. The chassis also has an inlet-outlet pipe that connects the heat exchange interlayer to the outside. During drying, a heat medium is introduced into the heat exchange interlayer to assist in drying. When discharging the filtrate, a refrigerant is introduced into the heat exchange interlayer to lower the temperature of the filtrate, prevent the materials from absorbing moisture when discharged, and also prevent the filtrate from overheating when discharged.

[0015] In the above-mentioned filter-washing-drying machine, the chassis also has a heat preservation cavity for filling heat preservation materials. The heat preservation cavity is located directly below the heat exchange interlayer, and the bottom end of the heat exchange interlayer is attached to the top wall of the heat preservation cavity. The heat preservation cavity is filled with heat preservation materials, which play a role in heat insulation and preservation, enabling the heat exchange interlayer to perform heat exchange better.

[0016] In the above-mentioned filtration, washing and drying machine, the filtration, washing and drying machine further includes a stirring assembly, a lifting assembly, a feeding assembly and a pushing assembly. The stirring assembly includes a stirring shaft passing through the top of the kettle body and stirring blades fixedly connected to the bottom of the stirring shaft. The lifting assembly is arranged at the top of the kettle body, and the lifting assembly is connected to the top of the stirring shaft. The lifting assembly can drive the stirring shaft to move up and down. The bottom of the kettle body also has a feeding port and a pushing port. The feeding assembly can block and leave the feeding port, and the pushing assembly can block and leave the pushing port. When the chassis is fixedly connected to the kettle body and the lifting assembly makes the stirring blades located at the lowest position, there is a certain distance between the stirring blades and the top of the filtration assembly. The top of the filtration assembly is flush with the bottom of the feeding port and the bottom of the pushing port, or the top of the filtration assembly is slightly higher than the bottom of the feeding port and the bottom of the pushing port. During operation, the feeding assembly blocks the feeding port, and the pushing assembly blocks the pushing port; during feeding, the feeding assembly leaves the feeding port, the stirring blades rotate, and the material is pushed out from the feeding port to achieve feeding. Subsequently, the pushing assembly leaves the pushing port, tools are fed from the pushing port, and the material between the stirring blades and the top of the filtration assembly is pushed, and the material in this part is pushed out from the feeding port to achieve feeding; the height setting of the top of the filtration assembly, the bottom of the feeding port and the bottom of the pushing port can better achieve the feeding of the material.

[0017] Compared with the prior art, the filtration, washing and drying machine provided by the present invention has the following advantages:

[0018] 1. The inner cavity of the kettle body and the balance port of this filtration, washing and drying machine are connected to the same pipe, and the inner cavity of the kettle body and the balance gap are simultaneously inflated or evacuated, so that the inner cavity of the kettle body and the balance gap are kept at the same air pressure, so that the material in the inner cavity of the kettle body will not enter the balance gap, making the filtration, washing and drying machine easy to clean and improving the product processing quality.

[0019] 2. Through the settings of the feeding assembly, the pushing assembly, the feeding port and the pushing port, the feeding of the material in the kettle body is realized in this filtration, washing and drying machine, and there is no need to disassemble and assemble the chassis, making the unloading of the filtration, washing and drying machine convenient. Description of the Drawings

[0020] Figure 1 is the state diagram of this filtration, washing and drying machine during operation.

[0021] Figure 2 is the state diagram of this filtration, washing and drying machine during unloading.

[0022] Figure 3 is the structural schematic diagram of the balance gap and the balance chamber of this filtration, washing and drying machine.

[0023] Figure 4 is the structural schematic diagram of the chassis and the filtration assembly of this filtration, washing and drying machine.

[0024] Figure 5 This is a schematic structural view of the chassis of the filtration, washing and drying machine.

[0025] In the figure, 1 is the kettle body; 2 is the sealing assembly; 21 is the gasket; 22 is the first sealing part; 23 is the second sealing part; 3 is the chassis; 4 is the sealing ring; 5 is the balance gap; 6 is the balance port; 7 is the balance cavity; 8 is the filtration cavity; 9 is the discharge pipe; 10 is the filtration assembly; 11 is the heat exchange interlayer; 12 is the inlet and outlet pipe; 13 is the heat preservation cavity; 14 is the stirring assembly; 141 is the stirring shaft; 142 is the stirring blade; 15 is the lifting assembly; 16 is the blanking assembly; 17 is the pushing assembly; 18 is the blanking port; 19 is the pushing port. Specific embodiments

[0026] The following are specific embodiments of the present invention and in combination with the accompanying drawings, the technical solutions of the present invention will be further described, but the present invention is not limited to these embodiments.

[0027] As Figure 1 , Figure 2 shown, the filtration, washing and drying machine includes a kettle body 1, a sealing assembly 2, a chassis 3, a sealing ring 4, a filtration assembly 10, a heat exchange interlayer 11, a stirring assembly 14, a lifting assembly 15, a blanking assembly 16 and a pushing assembly 17.

[0028] The stirring assembly 14 includes a stirring shaft 141 passing through the top of the kettle body 1 and a stirring blade 142 fixedly connected to the bottom of the stirring shaft 141. The lifting assembly 15 is arranged at the top of the kettle body 1. The lifting assembly 15 is connected to the top of the stirring shaft 141. The lifting assembly 15 can drive the stirring shaft 141 to move up and down. The bottom of the kettle body 1 also has a blanking port 18 and a pushing port 19. The blanking assembly 16 can block and leave the blanking port 18. The pushing assembly 17 can block and leave the pushing port 19. When the chassis 3 is fixedly connected to the kettle body 1 and the lifting assembly 15 makes the stirring blade 142 located at the lowest position, there is a certain distance between the stirring blade 142 and the top of the filtration assembly 10. In this embodiment, the top of the filtration assembly 10 is flush with the bottom of the blanking port 18 and the bottom of the pushing port 19. In actual production, the top of the filtration assembly 10 is slightly higher than the bottom of the blanking port 18 and the bottom of the pushing port 19, and the slightly higher amount is 1 mm or 5 mm.

[0029] As Figure 3As shown, a sealing ring 4 is sleeved on the inner end of the chassis 3. When the chassis 3 is fixedly connected to the kettle body 1, the sealing ring 4 abuts against the inner side wall of the kettle body 1. The sealing assembly 2 is sealingly arranged between the outer end of the chassis 3 and the kettle body 1, and a balance gap 5 is formed among the kettle body 1, the chassis 3, the sealing ring 4 and the sealing assembly 2. In this embodiment, the chassis 3 is provided with a balance port 6 for connecting the balance gap 5 with the outside. In actual production, the kettle body 1 is also provided with a balance port 6 for connecting the balance gap 5 with the outside.

[0030] Specifically, the balance gap 5 is located between the circumferential outer side wall of the chassis 3 and the circumferential inner side wall of the bottom of the kettle body 1. The balance gap 5 is annular and is located directly below the sealing ring 4. As Figure 5 shown, a balance cavity 7 recessed towards the center of the chassis 3 is provided on the circumferential outer side wall of the chassis 3. The balance cavity 7 is connected to the balance gap 5, and the balance port 6 is adjacent to the balance cavity 7.

[0031] The sealing assembly 2 includes a gasket 21, a first sealing portion 22 protruding circumferentially outward from the bottom of the kettle body 1, and a second sealing portion 23 protruding circumferentially outward from the bottom of the chassis 3. The corners at the inner circle of the first sealing portion 22 are rounded. When the chassis 3 is fixedly connected to the kettle body 1, the gasket 21 is sealingly pressed between the first sealing portion 22 and the second sealing portion 23. The inner circle of the gasket 21 extends to the corners at the inner circle of the first sealing portion 22, and there is a gap between the inner circle of the gasket 21 and the corners at the inner circle of the first sealing portion 22.

[0032] As Figure 4 shown, a filtering cavity 8 is recessed on the end face at the top of the chassis 3. A filtering component 10 is fixedly connected to the top of the chassis 3. The circumferential outer side of the filtering component 10 extends to the circumferential edge at the top of the chassis 3. The sealing ring 4 is located between the chassis 3 and the filtering component 10. The chassis 3 is provided with a heat exchange interlayer 11 and a heat preservation cavity 13 filled with heat preservation materials. The heat preservation cavity 13 is located directly below the heat exchange interlayer 11. The top end of the heat exchange interlayer 11 abuts against the bottom wall of the filtering cavity 8, and the bottom end of the heat exchange interlayer 11 abuts against the top wall of the heat preservation cavity 13. The chassis 3 is provided with a discharge pipe 9 for connecting the filtering cavity 8 with the outside and an inlet and outlet pipe 12 for connecting the heat exchange interlayer 11 with the outside. Both the discharge pipe 9 and the inlet and outlet pipe 12 pass through the heat preservation cavity 13.

[0033] During operation, the chassis 3 is moved into the kettle body 1 and fixed, and then the inner cavity of the kettle body 1 and the balance port 6 are pressurized or evacuated simultaneously, so that the inner cavity of the kettle body 1 and the balance gap 5 are kept at the same pressure, the sealing ring 4 will not be excessively deformed, the sealing ring 4 always abuts against the inner side wall of the kettle body 1, and the materials in the inner cavity of the kettle body 1 will not enter the balance gap 5, thus realizing the processing of the materials.

[0034] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains may make various modifications or supplements to the described specific embodiments, or use similar ways to replace them, without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0035] Although terms such as kettle body 1, sealing assembly 2, sealing gasket 21, first sealing portion 22, second sealing portion 23, chassis 3, sealing ring 4, balance gap 5, balance port 6, balance cavity 7, filtration cavity 8, discharge pipe 9, filtration assembly 10, heat exchange interlayer 11, inlet and outlet pipe 12, heat preservation cavity 13, stirring assembly 14, stirring shaft 141, stirring paddle 142, lifting assembly 15, blanking assembly 16, pushing assembly 17, blanking port 18, pushing port 19 are used more frequently herein, the possibility of using other terms is not excluded. Using these terms is only for more conveniently describing and explaining the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. Filter washing and drying machine, comprising a kettle body (1), a sealing assembly (2) and a movable chassis (3), wherein a sealing ring (4) is sleeved at the inner end of the chassis (3), characterized in that, When the chassis (3) is fixedly connected to the kettle body (1), the sealing ring (4) abuts against the inner side wall of the kettle body (1), the sealing assembly (2) is sealingly arranged between the outer end of the chassis (3) and the kettle body (1), a balance gap (5) is formed among the kettle body (1), the chassis (3), the sealing ring (4) and the sealing assembly (2), and a balance port (6) for communicating the balance gap (5) with the outside is provided on the chassis (3) or the kettle body (1).

2. The filtering, washing and drying machine according to claim 1, wherein The balance gap (5) is located between the circumferential outer side wall of the chassis (3) and the circumferential inner side wall of the bottom of the kettle body (1), and the balance gap (5) is annular.

3. The filter washing and drying machine according to claim 1, wherein, The balance gap (5) is located directly below the sealing ring (4).

4. The filter washing and drying machine according to claim 1 or 2 or 3, characterized in that, A balance cavity (7) recessed towards the center of the chassis (3) is provided on the circumferential outer side wall of the chassis (3), the balance cavity (7) communicates with the balance gap (5), and the balance port (6) is adjacent to the balance cavity (7).

5. The filtering, washing and drying machine according to claim 1 or 2 or 3, characterized in that, The sealing assembly (2) includes a gasket (21), a first sealing portion (22) protruding circumferentially outwards from the bottom of the kettle body (1), and a second sealing portion (23) protruding circumferentially outwards from the bottom of the chassis (3). When the chassis (3) is fixedly connected to the kettle body (1), the gasket (21) is sealingly pressed between the first sealing portion (22) and the second sealing portion (23).

6. The filter washing and drying machine according to claim 5, wherein, The corners at the inner circle of the first sealing portion (22) are rounded, the inner circle of the gasket (21) extends to the corners at the inner circle of the first sealing portion (22), and there is a gap between the inner circle of the gasket (21) and the corners at the inner circle of the first sealing portion (22).

7. The filter-washing-drying machine according to claim 1 or 2 or 3, characterized in that, A filtering cavity (8) is recessed on the end face at the top of the chassis (3), a discharge pipe (9) for communicating the filtering cavity (8) with the outside is further provided in the chassis (3), a filtering assembly (10) is fixedly connected to the top of the chassis (3), the circumferential outer side of the filtering assembly (10) extends to the circumferential edge at the top of the chassis (3), and the sealing ring (4) is located between the chassis (3) and the filtering assembly (10).

8. The filter washing and drying machine according to claim 7, characterized in that, A heat exchange interlayer (11) is further provided in the chassis (3), the top of the heat exchange interlayer (11) is arranged close to the bottom wall of the filtering cavity (8), and an inlet and outlet pipe (12) for communicating the heat exchange interlayer (11) with the outside is further provided in the chassis (3).

9. The filter washing and drying machine according to claim 8, characterized in that, A heat preservation cavity (13) for filling heat preservation materials is further provided in the chassis (3), the heat preservation cavity (13) is located directly below the heat exchange interlayer (11), and the bottom end of the heat exchange interlayer (11) is arranged close to the top wall of the heat preservation cavity (13).

10. The filter washing and drying machine according to claim 7, wherein, The filter washing and drying machine further includes a stirring assembly (14), a lifting assembly (15), a blanking assembly (16) and a pushing assembly (17). The stirring assembly (14) includes a stirring shaft (141) passing through the top of the kettle body (1) and stirring blades (142) fixedly connected to the bottom of the stirring shaft (141). The lifting assembly (15) is arranged at the top of the kettle body (1), and the lifting assembly (15) is connected to the top of the stirring shaft (141). The lifting assembly (15) can drive the stirring shaft (141) to move up and down. The bottom of the kettle body (1) further has a blanking port (18) and a pushing port (19). The blanking assembly (16) can block and leave the blanking port (18), and the pushing assembly (17) can block and leave the pushing port (19). When the chassis (3) is fixedly connected to the kettle body (1) and the lifting assembly (15) makes the stirring blades (142) located at the lowest position, there is a certain distance between the stirring blades (142) and the top of the filtering assembly (10). The top of the filtering assembly (10) is flush with the bottom of the blanking port (18) and the bottom of the pushing port (19), or the top of the filtering assembly (10) is slightly higher than the bottom of the blanking port (18) and the bottom of the pushing port (19).

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