Soybean milk filtering and defoaming device for producing vinegar soft bean curd

Abstract

The invention relates to the technical field of bean curd production, in particular to a soybean milk filtering and defoaming device for vinegar water bean curd production, which comprises a filtering mechanism comprising an outer protective cylinder, a motor positioned on the rear side of the outer protective cylinder, a filtering cylinder coaxially arranged in the outer protective cylinder, a rear end disc limited and matched at the rear end of the filtering cylinder, and a front end disc limited and matched at the front end of the filtering cylinder; the material guiding mechanism comprises a feeding hopper arranged above the outer protective cylinder, a slurry outlet box fixedly arranged at the lower end of the outer side wall of the outer protective cylinder and a base plate located below the outer protective cylinder, the filtering mechanism is obliquely arranged in the front-back direction, and the downward inclination of the front end of the filtering mechanism is smaller than 5 degrees; a plurality of filter cartridges are coaxially arranged in a sleeved mode, filter holes are formed in the outer side walls of the filter cartridges in an array mode, the diameters of the filter holes in the filter cartridges are gradually reduced from inside to outside, the filtering and defoaming device can effectively filter and defoam soybean milk, the quality of bean curd production is improved, the labor intensity of workers is effectively reduced, and the production efficiency is improved. The practicability is high.

Description

Technical Field

[0001] This invention relates to the field of tofu production technology, and in particular to a device for filtering and defoaming soy milk in the production of vinegar-water tofu. Background Technology

[0002] Vinegar-water tofu is a traditional specialty dish of Yueyang City, Hunan Province, belonging to the Hunan cuisine. It is made by using vinegar as a coagulant instead of traditional gypsum or brine, and is characterized by its delicate texture, moderate firmness, and delicious sour and fragrant taste. Its production process is listed as a municipal intangible cultural heritage. It uses "Xintian soybeans," a national geographical indication product, as raw material and is processed through more than ten steps, including soaking in well water, stone grinding, and simmering over firewood. The finished product has no astringent taste and is easy to make at home. The tofu is rich in protein and minerals such as calcium, phosphorus, and iron. After being fried, it turns golden in color and can be made into a portable and long-lasting selenium-rich food.

[0003] In the production process of vinegar-water tofu, the tofu, after grinding, needs to be filtered to remove soybean residue and eliminate foam from the soy milk before boiling. In industrial tofu production, these operations are generally handled by filtration and defoaming devices. For example, existing publications CN111513144B - An Automatic Tofu Production Line and CN222550224U - A Slurry Filtration Device for Oil Tofu Production both disclose filtration and defoaming devices for tofu production. Although these filtration and defoaming devices can achieve pretreatment before boiling the tofu, they still have the following shortcomings in actual use:

[0004] 1. Existing filtration devices mainly use centrifugal rotation for filtration. Although this method can achieve a certain filtration effect, due to centrifugal force, some fine soybean residue will be thrown out and mixed into the soy milk during the actual filtration process, resulting in poor quality of the filtered soy milk, which is not conducive to subsequent tofu production.

[0005] 2. Existing defoaming devices mainly use defoaming rods to break up the foam on the soy milk. However, this physical defoaming method can only achieve preliminary defoaming. After defoaming is completed, there is still a layer of fine foam on the soy milk. As a result, the staff need to manually skim off the foam during the subsequent boiling process. This not only makes the operation complicated but also increases the labor intensity of the staff.

[0006] Therefore, it is necessary to improve the existing technology to solve the above-mentioned technical problems. Summary of the Invention

[0007] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0008] Given that the existing filtration and defoaming devices still produce some fine soybean residue during the filtration process, resulting in poor tofu quality, a soy milk filtration and defoaming device for vinegar-water tofu production is proposed.

[0009] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a soy milk filtration and defoaming device for producing vinegar-water tofu, comprising: a filtration mechanism, including an outer protective cylinder, a motor located behind the outer protective cylinder, a filter cylinder coaxially disposed within the outer protective cylinder, a rear end plate limited and fitted at the rear end of the filter cylinder, and a front end plate limited and fitted at the front end of the filter cylinder; and a feeding mechanism, including a feeding hopper disposed above the outer protective cylinder, a soy milk outlet box fixed at the lower end of the outer side wall of the outer protective cylinder, and a base plate located below the outer protective cylinder; the filtration mechanism is inclined in the front-to-back direction, and the front end of the filtration mechanism is inclined downward at less than 5°; multiple filter cylinders are arranged in a... The filter cylinders are coaxially fitted together. Filter holes are arrayed on the outer wall of the filter cylinders. The diameter of the filter holes on the multiple filter cylinders gradually decreases from the inside to the outside. The rear end plate has a feed inlet that communicates with the inside of the innermost filter cylinder. A drive ring is fixed on the rear end face of the rear end plate outside the feed inlet. A ring tooth is fixed on the outer wall of the free end of the drive ring. A toothed disc is engaged at the lower end of the ring tooth. A first spacer ring that fits against the outer wall of the rear end plate is fixed on the inner wall of the outer casing. A slag discharge groove that communicates with the inside of each filter cylinder is arrayed on the front end plate. A second spacer ring that fits against the outer wall of the front end plate is fixed on the inner wall of the outer casing.

[0010] The beneficial effects of this invention are as follows: When using this filtration and defoaming device, unfiltered soy milk enters the innermost filter cylinder through the feeding hopper. The toothed disc drives the rotation of the ring teeth, and with the rear disc limiting the filter cylinder, multiple filter cylinders can rotate synchronously under the rotation of the toothed disc. Under the rotation of the filter cylinders, centrifugal force can separate the soy milk and soy residue, thus achieving filtration before boiling. The filter pore size on the multiple filter cylinders is set to gradually decrease from the inside to the outside, thus achieving multi-stage filtration of the soy milk and effectively separating the soy milk and soy residue. At the same time, due to the centrifugal force and the gradually decreasing filter pore size, it can also help to defoam.

[0011] As a preferred embodiment of the soy milk filtration and defoaming device for producing vinegar-water tofu according to the present invention, an output shaft is coaxially fixed on the rear end face of the toothed disc, and the output shaft is rotatably connected to the rear side plate of the outer casing through a rolling bearing. One end of the output shaft extending to the rear side of the outer casing is fitted into the output end of the motor, and the motor is fixedly connected to the outer side wall of the outer casing.

[0012] As a preferred embodiment of the soy milk filtration and defoaming device for producing vinegar-water tofu according to the present invention, the rear end of the drive ring is provided with a mating groove along the circumferential direction, and a positioning ring is fitted in the mating groove with a gap. A partition plate is fixedly provided on the lower side of the rear end face of the positioning ring and is fixedly connected to the inner wall of the outer protective cylinder. The partition plate divides the inner cavity of the outer protective cylinder behind the rear end plate into upper and lower independent chambers.

[0013] As a preferred embodiment of the soy milk filtration and defoaming device for producing vinegar-water tofu according to the present invention, wherein: a feed pipe is fixedly provided on the outer wall of the outer protective cylinder above the rear end plate, and a discharge pipe is fixedly provided on the bottom surface of the feeding hopper, and the feed pipe and the discharge pipe are fixed by bolts; the feeding hopper is fixedly connected to the outer wall of the outer protective cylinder; connecting plates are symmetrically fixed on both sides of the outer wall of the outer protective cylinder, the feeding hopper is fixedly connected to the connecting plates through a first support frame, and the base plate is fixedly connected to the connecting plates through a second support frame.

[0014] As a preferred embodiment of the soy milk filtration and defoaming device for producing vinegar-water tofu according to the present invention, a limiting ring is fixedly provided on the outer side wall of the rear end plate along the circumferential direction, and a limiting groove for clearance fit of the limiting ring is provided on the inner side wall of the first partition ring along the circumferential direction, and a second sealing groove is provided on the outer side wall of the limiting ring along the circumferential direction, and a sealing ring is interference-fitted in the second sealing groove.

[0015] As a preferred embodiment of the soy milk filtration and defoaming device for producing vinegar-water tofu according to the present invention, a locking bolt is fixedly provided in the middle of the front side of the front plate, and a squeezing plate is coaxially provided on the front side of the front plate. The squeezing plate is slidably sleeved on the bolt of the locking bolt and limited by a nut.

[0016] As a preferred embodiment of the soy milk filtration and defoaming device for producing vinegar-water tofu according to the present invention, the following features are provided: inner retaining rings are fixedly provided on the inner walls of both ends of the filter cylinder, outer limiting rings are fixedly provided on the outer walls of both ends of the filter cylinder, and limiting protrusions are fixedly arranged in a circumferential array on the outer side wall of the outer limiting ring; a first positioning groove for clearance fit between the inner retaining ring and the outer limiting ring is provided on the front end face of the rear end plate, and a first slot for clearance fit between the limiting protrusions is provided on the rear end face of the front end plate; a second positioning groove for clearance fit between the inner retaining ring and the outer limiting ring is provided on the rear end face of the front end plate, and a second slot for clearance fit between the limiting protrusions is provided on the front end face of the front end plate; a locking ring is coaxially provided on the outer side of the outer protective cylinder, and an external thread is provided on the outer side wall of the locking ring; a connecting ring is fixedly provided on the front side of the second spacer ring, and an internal thread that helically fits with the external thread is provided on the inner wall of the connecting ring.

[0017] As a preferred embodiment of the soy milk filtration and defoaming device for producing vinegar-water tofu according to the present invention, wherein: an abutment ring is fixedly provided on the inner wall of the second partition ring and fits against the rear end face of the front end plate; a first sealing groove is provided on the front end face of the abutment ring along the circumferential direction, and a sealing ring is interference-fitted in the first sealing groove; a rotating ring is fixedly provided at the front end of the outer side wall of the locking ring, and a rotating protrusion is fixedly arranged in a circumferential array on the outer side wall of the rotating ring.

[0018] Given that existing soy milk still requires subsequent auxiliary defoaming by staff after physical defoaming, the present invention provides a further optimized and improved soy milk filtration and defoaming device for producing vinegar-water tofu. The device includes: a defoaming tube fixedly sleeved at the upper end of the horizontal guide box of the soy milk outlet box; water outlet holes arrayed along the axial direction on the bottom side wall of the defoaming tube; a connecting pipe fixedly installed at one end of the defoaming tube; and a control valve fixedly installed on the connecting pipe.

[0019] Another beneficial effect of the present invention is that when the filter and defoaming device is in use, the free end of the connecting pipe is connected to the water supply pipe. Through the transportation of the connecting pipe, the water will eventually be discharged through the water outlet on the defoaming pipe. After the filtered soy milk is discharged through the discharge box, the sprayed water will spray directly from the top of the soy milk to further defoam, effectively avoiding the need for manual foaming by the staff. The overall practicality is good and the labor intensity of the staff is reduced. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0021] Figure 1 This is a schematic diagram of the overall structure of a soy milk filtration and defoaming device for producing vinegar-water tofu.

[0022] Figure 2 For the present invention Figure 1 Rear view of the structure.

[0023] Figure 3 For the present invention Figure 1 A vertical sectional view of the structure in the left-right direction.

[0024] Figure 4 For the present invention Figure 1 A vertical sectional view of the structure in the front-to-back direction.

[0025] Figure 5 This is a schematic diagram of the internal structure of the outer casing of the filter mechanism in this invention.

[0026] Figure 6 For the present invention Figure 5 Exploded view of the structure.

[0027] Figure 7 This is a schematic diagram of the overall structure of the filter cartridge in this invention.

[0028] Figure 8 This is a schematic diagram of the overall structure of the front-end disk in this invention.

[0029] Figure 9 This is a schematic diagram showing the combination of the outer casing and the slurry outlet box in this invention.

[0030] Figure 10 This is a schematic diagram of the overall structure of the defoaming tube in this invention. Detailed Implementation

[0031] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0032] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0034] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0035] Example 1

[0036] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4This is the first embodiment of the present invention. This embodiment provides a soy milk filtration and defoaming device for producing vinegar-water tofu. The feeding hopper 201 in the feeding mechanism 200 is used to add the ground soy milk into the filtering mechanism 100. The filtering mechanism 100 is used to centrifugally filter the ground soy milk. The filtered soy milk is discharged through the discharge box 202.

[0037] Specifically, the system includes a filtration mechanism 100, comprising an outer casing 101, a motor 102 located behind the outer casing 101, a filter cylinder 103 coaxially disposed within the outer casing 101, a rear end plate 104 limiting and cooperating with the rear end of the filter cylinder 103, and a front end plate 105 limiting and cooperating with the front end of the filter cylinder 103; and a material guiding mechanism 200, comprising a feeding hopper 201 disposed above the outer casing 101, a slurry discharge box 202 fixed at the lower end of the outer wall of the outer casing 101, and a base plate 203 located below the outer casing 101. The filtration mechanism 100 tilts in the front-rear direction. The filter mechanism 100 is inclined, with the front end tilted downwards by less than 5°. This inclined setting allows the soybean residue to be conveyed to the front of the filter cylinder 103 under the action of gravity. The feeding hopper 201 is fixedly connected to the outer wall of the outer casing 101. Connecting plates 101c are symmetrically fixed on both sides of the outer wall of the outer casing 101. The feeding hopper 201 is fixedly connected to the connecting plate 101c through the first support frame 201a. The base plate 203 is fixedly connected to the connecting plate 101c through the second support frame 203a. This achieves the stability of the cooperation between the filter mechanism 100 and the guiding mechanism 200.

[0038] See details Figure 2 , Figure 3 , Figure 4 , Figure 7 and Figure 9 As shown, multiple filter cylinders 103 are coaxially fitted together. Filter holes 103a are arrayed on the outer wall of each filter cylinder 103. The diameter of the filter holes 103a on the multiple filter cylinders 103 gradually decreases from the inside to the outside, thus achieving multi-stage filtration and improving the filtration effect. A feed inlet 104c is provided on the rear end plate 104, communicating with the interior of the innermost filter cylinder 103. A drive ring 104b is fixed on the rear end face of the rear end plate 104 outside the feed inlet 104c. A ring tooth 104b-1 is fixed on the outer wall of the free end of 104b. A gear disk 102a-1 is meshed at the lower end of the ring tooth 104b-1. An output shaft 102a is coaxially fixed on the rear end face of the gear disk 102a-1. The output shaft 102a is rotatably connected to the rear side plate of the outer casing 101 through a rolling bearing. One end of the output shaft 102a, which extends to the rear side of the outer casing 101, is fitted into the output end of the motor 102. The motor 102 is fixedly connected to the outer wall of the outer casing 101.

[0039] In use, the above-mentioned setup allows the output shaft 102a to drive the gear disc 102a-1 to rotate through the operation of the motor 102. Due to the meshing between the gear disc 102a-1 and the ring gear 104b-1, the rotation of the gear disc 102a-1 drives the drive ring 104b to rotate, ultimately achieving synchronous rotation of multiple filter cylinders 103. The ground soybean milk enters the innermost filter cylinder 103 through the feed inlet 104c. Under the centrifugal force of the rotating filter cylinder 103, the soybean milk is discharged one by one through the filter holes 103a on each filter cylinder 103, and finally discharged from the discharge box 202 below the outer protective cylinder 101.

[0040] Furthermore, the rear end of the drive ring 104b is provided with a circumferentially circumferentially abutting groove 104b-2, and a positioning ring 101d-1 is fitted in the abutting groove 104b-2 with a gap. This arrangement allows the drive ring 104b to rotate freely relative to the positioning ring 101d-1, and also allows the soy milk to be transferred into the feed inlet 104c. The lower side of the rear end face of the positioning ring 101d is fixedly provided with a partition 101d that is fixedly connected to the inner wall of the outer protective cylinder 101, and the partition 101d divides the inner cavity of the outer protective cylinder 101 behind the rear end plate 104 into upper and lower independent chambers. This allows the soy milk in the feeding hopper 201 to directly enter the filter cylinder 103 through the feed inlet 104c at the upper end of the partition 101d. The outer wall of the outer protective cylinder 101 above the rear end plate 104 is fixed with a feed pipe 101a, and the bottom surface of the feeding hopper 201 is fixed with a discharge pipe 201b. The feed pipe 101a and the discharge pipe 201b are fixed together with bolts. When in use, the operator adds the ground soy milk into the feeding hopper 201, and then the soy milk is conveyed through the discharge pipe 201b and the feed pipe 101a, and finally enters the chamber above the partition 101d.

[0041] See details Figure 3 , Figure 4 , Figure 6 and Figure 9 As shown, a first spacer ring 101b is fixed on the inner wall of the outer casing 101 and fits against the outer wall of the rear end plate 104. A limiting ring 104a is fixed on the outer wall of the rear end plate 104 in the circumferential direction. A limiting groove 101b-1 for clearance fit of the limiting ring 104a is opened on the inner wall of the first spacer ring 101b in the circumferential direction. This serves to limit and guide the movement of the rear end plate 104. A second sealing groove 104a-1 is opened on the outer wall of the limiting ring 104a in the circumferential direction. A sealing ring is interference-fitted in the second sealing groove 104a-1 to improve the sealing performance between the limiting ring 104a and the first spacer ring 101b. A slag discharge groove 105a is arrayed on the front end plate 105 and communicates with the inner side of each filter cylinder 103. A second spacer ring 101e is fixed on the inner wall of the outer casing 101 and fits against the outer wall of the front end plate 105.

[0042] When in use, the soy milk after centrifugation is discharged through the filter cylinder 103, while the soy pulp remains in each filter cylinder 103. Due to the inclined setting of the filter cylinder 103, the soy pulp is eventually discharged through the pulp discharge trough 105a on the front plate 105.

[0043] Furthermore, a locking bolt 105b is fixed in the middle of the front side of the front plate 105, and a pressing plate 105d is coaxially arranged on the front side of the front plate 105. The pressing plate 105d is slidably sleeved on the post of the locking bolt 105b and limited by a nut. The position of the pressing plate 105d on the locking bolt 105b can be adjusted by setting the locking bolt 105b. The pressing plate 105d itself and the slag discharge trough 105a can provide a certain pressing force on the soybean dregs so as to squeeze out the soybean milk contained in the soybean dregs to a certain extent.

[0044] Example 2

[0045] Reference Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment, but differs in that it is proposed to facilitate the maintenance and replacement of the filter cartridge 103 by the staff and to make the internal cleaning convenient.

[0046] Specifically, inner retaining rings 103b are fixed on the inner walls of both ends of the filter cylinder 103, and outer limiting rings 103c are fixed on the outer walls of both ends of the filter cylinder 103. Limiting protrusions 103c-1 are arranged in a circumferential array on the outer side wall of the outer limiting rings 103c. A first positioning groove 104d is provided on the front end face of the rear end plate 104 for the inner retaining rings 103b and the outer limiting rings 103c to cooperate with a clearance. The inner retaining rings 103b can provide a certain degree of obstruction, preventing soy milk from being discharged from the residue outlet 105a due to the tilt of the filter cylinder 103. The rear end plate 104... The front plate 104 has a first slot 104d-1 for clearance fit of the limiting protrusion 103c-1. The rear end face of the front plate 105 has a second positioning slot 105c for clearance fit of the inner retaining ring 103b and the outer limiting ring 103c. The front plate 105 has a second slot 105c-1 for clearance fit of the limiting protrusion 103c-1. This arrangement facilitates the synchronous rotation of the filter cylinder 103 and the front plate 105 under the rotation of the rear plate 104, and also facilitates the disassembly of the filter cylinder 103 from the front plate 105 and the rear plate 104 respectively.

[0047] A locking ring 106 is coaxially provided on the outer side of the outer sleeve 101. An external thread 106a is provided on the outer side wall of the locking ring 106. A connecting ring 101f is fixed on the front side of the second spacer ring 101e, and an internal thread 101f-1 that is helically engaged with the external thread 106a is provided on the inner wall of the connecting ring 101f.

[0048] In use, the above-mentioned setting allows the locking ring 106 to be removed from the connecting ring 101f through the helical engagement between the external thread 106a and the internal thread 101f-1. After removing the locking ring 106, the operator can remove the front plate 105 and the filter cartridge 103 in sequence, which is convenient for the operator to disassemble, replace and clean. The locking ring 106 itself can limit the front plate 105 on the one hand, and allow the front plate 105 to rotate freely on the other hand.

[0049] Furthermore, an abutment ring 101e-1 that fits against the rear end face of the front end plate 105 is fixed on the inner wall of the second spacer ring 101e. A first sealing groove 101e-2 is formed circumferentially on the front end face of the abutment ring 101e-1, and a sealing ring is interference-fitted in the first sealing groove 101e-2, so as to achieve a sealing performance between the abutment ring 101e-1 and the front end plate 105. A rotating ring 106b is fixed at the front end of the outer side wall of the locking ring 106, and a rotating protrusion 106b-1 is fixedly arranged circumferentially on the outer side wall of the rotating ring 106b, so as to facilitate the rotation of the locking ring 106 by the operator.

[0050] Example 3

[0051] Reference Figure 1 , Figure 2 , Figure 3 and Figure 10 This is the third embodiment of the present invention. This embodiment is based on any of the above embodiments. The difference is that, in order to further improve the defoaming effect and avoid the need for workers to float the remaining foam after mechanical defoaming, this embodiment is proposed.

[0052] Specifically, a defoaming pipe 202a is fixedly sleeved at the upper end of the transverse guide box of the slurry box 202, and water outlet holes 202a-1 are arrayed along the axial direction on the bottom surface of the side wall of the defoaming pipe 202a. A connecting pipe 202a-2 is fixedly installed at one end of the defoaming pipe 202a, and a control valve 202a-3 is fixedly installed on the connecting pipe 202a-2. The control valve 202a-3 is used to control the amount of water entering the pipe.

[0053] When in use, one end of the connecting pipe 202a-2 is connected to the water supply pipe. Water is transported through the connecting pipe 202a-2 and finally enters the defoaming pipe 202a, and is discharged from the water outlet 202a-1 on the defoaming pipe 202a. The discharged water will be sprayed into the soy milk on the soy milk box 202 to further defoam the foam on the soy milk.

[0054] Additionally, it should be noted that components not described in detail in this article are existing technologies.

[0055] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., variations in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the invention is not limited to the particular embodiments but extends to a variety of modifications that still fall within the scope of the appended claims.

[0056] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0057] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine task in design, manufacturing, and production without requiring extensive experimentation.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A device for filtering and defoaming soy milk produced from vinegar-water tofu, characterized in that: include, The filtration mechanism (100) includes an outer casing (101), a motor (102) located behind the outer casing (101), a filter cartridge (103) coaxially disposed inside the outer casing (101), a rear end plate (104) limited to the rear end of the filter cartridge (103), and a front end plate (105) limited to the front end of the filter cartridge (103); and, The material guiding mechanism (200) includes a feeding hopper (201) disposed above the outer casing (101), a slurry discharge box (202) fixed at the lower end of the outer wall of the outer casing (101), and a base plate (203) located below the outer casing (101). The filtering mechanism (100) is inclined in the front-back direction, and the front end of the filtering mechanism (100) is inclined downward by less than 5°. Multiple filter cylinders (103) are coaxially fitted together. Filter holes (103a) are arrayed on the outer wall of each filter cylinder (103). The diameter of the filter holes (103a) on the multiple filter cylinders (103) gradually decreases from the inside to the outside. A feed inlet (104c) communicating with the interior of the innermost filter cylinder (103) is provided on the rear end plate (104). A drive ring (104b) is fixed on the rear end face of the rear end plate (104) outside the feed inlet (104c), and the free... A ring tooth (104b-1) is fixed on the outer side wall of the end, and a toothed disc (102a-1) is engaged at the lower end of the ring tooth (104b-1). A first spacer ring (101b) is fixed on the inner wall of the outer sleeve (101) and fits against the outer side wall of the rear end disc (104). A slag discharge groove (105a) is arrayed on the front end disc (105) and communicates with the inner side of each filter cylinder (103). A second spacer ring (101e) is fixed on the inner wall of the outer sleeve (101) and fits against the outer side wall of the front end disc (105).

2. The soy milk filtration and defoaming device for producing vinegar-water tofu as described in claim 1, characterized in that: An output shaft (102a) is coaxially fixed on the rear end face of the gear disc (102a-1), and the output shaft (102a) is rotatably connected to the rear side plate of the outer casing (101) through a rolling bearing. One end of the output shaft (102a) extending to the rear side of the outer casing (101) is fitted into the output end of the motor (102), and the motor (102) is fixedly connected to the outer side wall of the outer casing (101).

3. The soy milk filtration and defoaming device for producing vinegar-water tofu as described in claim 2, characterized in that: The rear end of the drive ring (104b) is provided with a mating groove (104b-2) along the circumferential direction, and a positioning ring (101d-1) is fitted in the mating groove (104b-2) with a gap. A partition (101d) is fixedly provided on the lower side of the rear end face of the positioning ring (101d-1) and is fixedly connected to the inner wall of the outer casing (101). The partition (101d) divides the inner cavity of the outer casing (101) behind the rear end plate (104) into upper and lower independent chambers.

4. The soy milk filtration and defoaming device for producing vinegar-water tofu as described in claim 3, characterized in that: A feed pipe (101a) is fixed on the outer wall of the outer casing (101) above the rear end plate (104), and a discharge pipe (201b) is fixed on the bottom surface of the feeding hopper (201), and the feed pipe (101a) and the discharge pipe (201b) are fixed by bolts. The feeding hopper (201) is fixedly connected to the outer wall of the outer casing (101); The outer outer wall of the outer casing (101) is symmetrically fixed with connecting plates (101c). The feeding hopper (201) is fixedly connected to the connecting plate (101c) through the first support frame (201a). The base plate (203) is fixedly connected to the connecting plate (101c) through the second support frame (203a).

5. The soy milk filtration and defoaming device for producing vinegar-water tofu as described in claim 4, characterized in that: A limiting ring (104a) is fixedly provided on the outer side wall of the rear end plate (104) along the circumferential direction, and a limiting groove (101b-1) for clearance fit of the limiting ring (104a) is provided on the inner side wall of the first partition ring (101b) along the circumferential direction. A second sealing groove (104a-1) is provided on the outer side wall of the limiting ring (104a) along the circumferential direction, and a sealing ring is interference-fitted in the second sealing groove (104a-1).

6. The soy milk filtration and defoaming device for producing vinegar-water tofu as described in claim 1, characterized in that: A locking bolt (105b) is fixed in the middle of the front side of the front disc (105), and a pressing disc (105d) is coaxially arranged on the front side of the front disc (105). The pressing disc (105d) is slidably sleeved on the post of the locking bolt (105b) and limited by a nut.

7. The soy milk filtration and defoaming device for producing vinegar-water tofu as described in claim 5, characterized in that: The filter cylinder (103) has inner retaining rings (103b) fixed on the inner walls of both ends, and outer limiting rings (103c) fixed on the outer walls of both ends. The outer wall of the outer limiting ring (103c) is also fixed with limiting protrusions (103c-1) arranged in a circumferential array. The front end face of the rear end plate (104) is provided with a first positioning groove (104d) for the inner retaining ring (103b) and the outer limiting ring (103c) to have a clearance fit. The rear end plate (104) is provided with a first slot (104d-1) for the limiting protrusions (103c-1) to have a clearance fit. The rear end face of the front end plate (105) is provided with a second positioning groove (105c) for the inner retaining ring (103b) and the outer limiting ring (103c) to have a clearance fit. The front end plate (105) is provided with a second slot (105c-1) for the limiting protrusions (103c-1) to have a clearance fit. A locking ring (106) is coaxially provided on the outer side of the outer sleeve (101). An external thread (106a) is provided on the outer side wall of the locking ring (106). A connecting ring (101f) is fixed on the front side of the second spacer (101e), and an internal thread (101f-1) is provided on the inner wall of the connecting ring (101f) to helically engage with the external thread (106a).

8. The soy milk filtration and defoaming device for producing vinegar-water tofu as described in claim 7, characterized in that: The inner wall of the second spacer (101e) is fixed with a stop ring (101e-1) that fits against the rear end face of the front end plate (105). A first sealing groove (101e-2) is opened along the circumferential direction on the front end face of the stop ring (101e-1), and a sealing ring is interference-fitted in the first sealing groove (101e-2). A rotating ring (106b) is fixed at the front end of the outer side wall of the locking ring (106), and rotating protrusions (106b-1) are fixed in a circumferential array on the outer side wall of the rotating ring (106b).

9. A soy milk filtration and defoaming device for producing vinegar-water tofu as described in claim 1, 6, or 8, characterized in that: The upper end of the transverse guide box of the slurry box (202) is fixedly sleeved with a defoaming pipe (202a), and the bottom side wall of the defoaming pipe (202a) is provided with water outlet holes (202a-1) arranged in an array along the axial direction. One end of the defoaming pipe (202a) is fixedly provided with a connecting pipe (202a-2), and a control valve (202a-3) is fixedly installed on the connecting pipe (202a-2).

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