Biological fermentation device with self-cleaning function

Abstract

The utility model relates to fermentation tank technical field discloses a biological fermentation device with self -cleaning function, including fermentation tank, the cleaning part, stirring part are installed to fermentation tank, and stirring part includes stirring shaft and the stirring paddle of rotation connection on stirring shaft, and the torsional spring is arranged between stirring shaft and stirring paddle, the cleaning unit, the drive unit are included in the cleaning part, the cleaning unit includes the water delivery shaft and the side wall cleaning group, stirring part cleaning group connected with the water delivery shaft, and the water delivery shaft is inserted in fermentation tank, and the stirring shaft is connected on the water delivery shaft, and the rotary connecting piece is set up on the water delivery shaft, and the water delivery shaft is connected the external water pipe through the rotary connecting piece, and the water delivery shaft sends water to the side wall cleaning group, stirring part cleaning group in proper order, the utility model discloses through setting up the cleaning part, not only can the side wall cleaning group clean the inner wall of fermentation tank, but also can make stirring part cleaning group clean the stirring part, reduce the cleaning dead angle, and the cleaning effect is improved greatly.

Description

Technical Field

[0001] This utility model relates to the field of fermentation tank technology, specifically, a biological fermentation device with self-cleaning function. Background Technology

[0002] A fermenter is a container used in microbial fermentation processes and is widely used in the food, pharmaceutical, and chemical industries. In these industries, microbial fermentation is used to produce various products, such as alcohol, soy sauce, antibiotics, and amino acids. The fermenter needs to be sterilized before and after each fermentation operation to ensure its smooth progress. To ensure thorough sterilization, the inside of the fermenter must be thoroughly cleaned before sterilization to ensure no material residue remains.

[0003] The self-cleaning feed fermentation tank with announcement number CN222294025U, through the installation of a water tank and a reciprocating rotation mechanism, can replace manual labor in spraying water back and forth to clean the inner wall of the tank, saving manpower. However, this device can only clean the tank wall; during the fermentation process, material residue remains on the spray pipes and nozzles used for cleaning the tank wall, which cannot be thoroughly cleaned, resulting in incomplete sterilization during subsequent sterilization operations; thus affecting the subsequent fermentation process. Utility Model Content

[0004] The purpose of this invention is to provide a biological fermentation device with a self-cleaning function, which solves the problem that the existing fermentation tanks do not thoroughly clean their inner walls, resulting in incomplete sterilization in the subsequent process.

[0005] This utility model is achieved through the following technical solution: a bio-fermentation device with self-cleaning function, comprising a fermentation tank, on which a cleaning section and a stirring section are installed. The stirring section includes a stirring shaft and a stirring paddle rotatably connected to the stirring shaft, with a torsion spring provided between the stirring shaft and the stirring paddle. The cleaning section includes a cleaning unit and a driving unit. The cleaning unit includes a water conveying shaft and a side wall cleaning group and a stirring section cleaning group connected to the water conveying shaft. The water conveying shaft is inserted into the fermentation tank, and the stirring shaft is slidably connected to the water conveying shaft. A rotating connector is provided on the water conveying shaft, and the water conveying shaft is connected to an external water pipe through the rotating connector. The water conveying shaft sequentially delivers water to the side wall cleaning group and the stirring section cleaning group. The side wall cleaning group sprays water onto the side wall of the fermentation tank for rinsing, and the stirring section cleaning group sprays water onto the stirring section for rinsing.

[0006] To better realize this utility model, the water conveying shaft further includes an outer shaft, an inner shaft, a connecting piece, and a reinforcing ring. The outer shaft and the inner shaft are respectively fixedly connected to the connecting piece, and the reinforcing ring is disposed between the outer shaft and the inner shaft. The stirring shaft is slidably connected to the inner shaft. The outer shaft is provided with a side drainage hole, and the connecting piece is provided with a bottom drainage hole. The side wall cleaning assembly includes a side wall cleaning pipe, which is installed on the outer shaft. The end of the side wall cleaning pipe is provided with a scraper and a side wall spray hole. The stirring part cleaning assembly includes a connecting plate and a stirring part spray plate. The connecting plate is rotatably connected to the connecting piece, and the connecting plate and the stirring part spray plate are connected by bolts. The stirring part spray plate is provided with radial spray holes and oblique spray holes.

[0007] To better realize this utility model, the scraper is further inclined, and a plurality of the side wall spray holes are distributed on both sides of the scraper.

[0008] To better realize this utility model, the radial spray holes are further arranged radially along the spray plate of the stirring part, the water inlet end of the oblique spray hole is higher than the water outlet end, the distance from the water inlet end to the axis is greater than the distance from the water outlet end to the axis, and the axial projections of the water inlet end and the water outlet end are not on the same radius line.

[0009] To better realize this utility model, the drive unit further includes a longitudinal motor and a rotary motor, a first gear is mounted on the longitudinal motor, and a second gear is mounted on the rotary motor; multiple toothed rings are linearly arranged on the outer shaft, and multiple teeth are circumferentially arranged on the toothed rings.

[0010] To better realize this utility model, the fermentation tank further includes a tank body and a tank cover. The tank cover is detachably connected to the tank body. Valves are installed at the feed inlet and discharge outlet of the fermentation tank. A water pipe bracket is installed on the tank cover to support an external water pipe.

[0011] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0012] (1) By setting up a cleaning section, this utility model not only enables the side wall cleaning group to clean the inner wall of the fermentation tank, but also enables the stirring section cleaning group to clean the stirring section, reducing cleaning dead corners and greatly improving the cleaning effect.

[0013] (2) By setting oblique spray holes, this utility model can spray the stirring shaft in all directions around the circumference, which can effectively remove the residual material in the gaps and improve the cleaning effect.

[0014] (3) By setting up a mixing section and a cleaning section in cooperation, this utility model can save the mixing power source of the mixing section, and the mixing of materials can be achieved with the help of the cleaning section, thus reducing the input cost. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a cross-sectional view of the overall structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the overall structure of this utility model from the left view angle.

[0018] Figure 4 This is a schematic diagram of the tooth ring and tooth structure.

[0019] Figure 5 This is a cross-sectional view of the water conveyance shaft structure.

[0020] Figure 6 This is a schematic diagram of a partial structure of the water conveyance shaft.

[0021] Figure 7 This is a schematic diagram of the side wall spray holes and scraper structure.

[0022] Figure 8 This is a partial structural cross-sectional view of the cleaning section.

[0023] Figure 9 This is a schematic diagram of the spray plate structure of the mixing section.

[0024] Figure 10 This is a wireframe diagram of the spray tray structure in the mixing section.

[0025] Wherein: 101-Tank body; 102-Tank cover; 103-Valve; 104-Water pipe support; 105-Longitudinal motor; 106-First gear; 107-Second gear; 108-Rotary motor; 109-External water pipe; 110-Rotary connector; 111-Outer shaft; 112-Reinforcing ring; 113-Inner shaft; 114-Agitator shaft; 115-Agitator paddle; 116-Side wall cleaning pipe; 117-Scraper; 118-Gear ring; 119-Tooth; 120-Connecting piece; 121-Side drain hole; 122-Connecting disc; 123-Agitator spray disc; 124-Radial spray hole; 125-Angled spray hole; 126-Side wall spray hole; 127-Bottom drain hole. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Example 1:

[0029] This embodiment provides a bio-fermentation device with self-cleaning function, specifically as follows: Figures 1-3 As shown, the system includes a fermenter with a feed inlet at the top and a discharge outlet at the bottom. The fermenter is equipped with a cleaning unit and a stirring unit. The stirring unit includes a stirring shaft 114 and a stirring paddle 115 rotatably connected to the stirring shaft 114. A torsion spring is provided between the stirring shaft 114 and the stirring paddle 115. The cleaning unit includes a cleaning unit and a drive unit. The cleaning unit includes a water conveying shaft and a sidewall cleaning assembly and a stirring unit cleaning assembly connected to the water conveying shaft. The water conveying shaft is inserted into the fermenter, and the stirring shaft 114 is slidably connected to the water conveying shaft. A rotating connector 110 is provided on the water conveying shaft, which is connected to an external water pipe 109 via the rotating connector 110. The water conveying shaft sequentially delivers water to the sidewall cleaning assembly and the stirring unit cleaning assembly. The rotating connector 110 is a commercially available product; the specific model is chosen by those skilled in the art, and its operating principle will not be elaborated here.

[0030] During the cleaning of the fermentation tank, the external water pipe 109 delivers water to the water conveying shaft. The water then flows to the side wall cleaning group and the stirring section cleaning group. The side wall cleaning group sprays water onto the inner wall of the fermentation tank to rinse it; while the stirring section cleaning group sprays water onto the stirring shaft 114 and the stirring paddle 115, washing away any residual material on them. In other words, by setting up cleaning sections, not only can the side wall cleaning group clean the inner wall of the fermentation tank, but the stirring section cleaning group can also clean the stirring section, reducing cleaning dead zones and significantly improving the cleaning effect.

[0031] Example 2:

[0032] This embodiment further expands the cleaning unit based on the above embodiment, specifically as follows: Figures 1-3 , Figures 5-10 As shown, the water conveying shaft includes an outer shaft 111, an inner shaft 113, a connecting piece 120, and a reinforcing ring 112. The outer shaft 111 and the inner shaft 113 are respectively fixedly connected to the connecting piece 120. The reinforcing ring 112 is disposed between the outer shaft 111 and the inner shaft 113. The stirring shaft 114 is slidably connected to the inner shaft 113. A side drain hole 121 is provided on the outer shaft 111, and a bottom drain hole 127 is provided on the connecting piece 120. The outer shaft 111, the inner shaft 113, and the connecting piece 120 form a water conveying chamber. An external water pipe 109 is connected to one end of the water conveying chamber. At the other end of the water conveying chamber, water flows out from the side drain hole 121 and the bottom drain hole 127. The sidewall cleaning assembly includes a sidewall cleaning pipe 116. The pipe 116 is mounted on the outer shaft 111. The end of the side wall cleaning pipe 116 is provided with a scraper 117 and a side wall spray hole 126. Water in the water supply chamber flows into the side wall cleaning pipe 116 through the side drain hole 121 and then sprays out from the side wall spray hole 126. The stirring part cleaning assembly includes a connecting plate 122 and a stirring part spray plate 123. The connecting plate 122 is rotatably connected to the connecting piece 120. The connecting plate 122 and the stirring part spray plate 123 are connected by bolts. The stirring part spray plate 123 is provided with radial spray holes 124 and oblique spray holes 125. Water in the water supply chamber flows into the stirring part spray plate 123 from the bottom drain hole 127 and then sprays out from the radial spray holes 124 and oblique spray holes 125 respectively.

[0033] During cleaning operations, the drive unit drives the water conveying shaft to move longitudinally and rotate. When the water conveying shaft rotates, the side wall cleaning pipe 116 rotates synchronously. As the side wall cleaning pipe 116 rotates, the scraper 117 scrapes the inner wall of the fermenter, and simultaneously, the side wall spray holes 126 spray water onto the scraped areas for cleaning. When the water conveying shaft moves downwards, the side wall cleaning pipe 116 moves downwards synchronously, thus achieving comprehensive cleaning of the tank wall. When the water conveying shaft rotates, the inner shaft 113 drives the stirring shaft 114 to rotate synchronously. If it is necessary to stir the material inside the tank, then the external water pipe 109 will not supply water to the water conveying shaft. At this time, the water conveying shaft simply drives the stirring shaft 114 to rotate. Due to the action of the torsion spring, at this time... The agitator 115 is perpendicular to the agitator shaft 114 and rotates with the agitator shaft 114 to agitate the material. When cleaning is required, the water conveying shaft descends and rotates while the side wall cleaning pipe 116 cleans the tank wall. At the same time, the agitator shaft 114 also rotates synchronously, and water is sprayed from the radial spray hole 124 and the oblique spray hole 125 to clean the agitator shaft 114 and the agitator 115. The agitator shaft 114 is slowly inserted into the inner shaft 113. When the agitator 115 contacts the inner shaft 113, the torsion spring is compressed. At this time, the agitator 115 is embedded in the agitator shaft 114 to ensure that the agitator shaft 114 can be smoothly inserted into the inner shaft 113.

[0034] The drive unit drives the water conveying shaft to move and rotate longitudinally, thereby achieving the purpose of cleaning the fermenter in all directions by the side wall cleaning group and the stirring part cleaning group.

[0035] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0036] Example 3:

[0037] This embodiment further extends the above embodiment, specifically as follows: Figure 7 As shown, the scraper 117 is inclined, and a plurality of side wall spray holes 126 are distributed on both sides of the scraper 117.

[0038] When the side wall cleaning pipe 116 rotates, the lower side of the scraper 117 scrapes the material off the tank wall, which will fall off naturally under the action of gravity. At the same time, the side wall spray holes 126 distributed on the lower side of the scraper 117 will also rinse the material to prevent the material from sticking to the scraper 117. The side wall spray holes 126 distributed on the upper side of the scraper 117 will rinse the scraped area again to ensure thorough cleaning.

[0039] like Figures 8-10 As shown, the radial spray hole 124 is arranged radially along the spray plate 123 of the stirring part, the water inlet of the oblique spray hole 125 is higher than the water outlet, the distance from the water inlet to the axis is greater than the distance from the water outlet to the axis, and the axial projections of the water inlet and the water outlet are not on the same radius line.

[0040] Because of the oblique spatial arrangement of the oblique spray holes 125, when the oblique spray holes 125 spray water, they not only spray obliquely downward onto the stirring shaft 114 and the stirring paddle 115, but also have a circumferential thrust along the stirring part spray plate 123. That is, when the oblique spray holes 125 spray water, they will cause the stirring part spray plate 123 and the connecting plate 122 to rotate on the connecting piece 120, so that the radial spray holes 124 and the oblique spray holes 125 can spray the stirring shaft 114 in all directions around the circumference, which can effectively remove the residual materials in the gaps and improve the cleaning effect.

[0041] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0042] Example 4:

[0043] This embodiment further expands the driving unit based on the above embodiments, specifically as follows: Figure 4 As shown, the drive unit includes a longitudinal motor 105 and a rotary motor 108. A first gear 106 is mounted on the longitudinal motor 105, and a second gear 107 is mounted on the rotary motor 108. A plurality of gear rings 118 are linearly arranged on the outer shaft 111. The first gear 106 engages with the plurality of gear rings 118. A plurality of teeth 119 are arranged in a circular array on the gear rings 118, and the second gear 107 engages with the teeth 119.

[0044] When the longitudinal motor 105 is started, the longitudinal motor 105 drives the first gear 106 to rotate, and the first gear 106 drives the gear ring 118 to achieve longitudinal displacement of the water conveying shaft; when the rotary motor 108 is started, the rotary motor 108 drives the second gear 107 to rotate, and the second gear 107 rotates the water conveying shaft through the teeth 119 meshing with it.

[0045] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0046] Example 5:

[0047] This embodiment further extends the above embodiment, specifically as follows: Figure 1 As shown, the fermentation tank includes a tank body 101 and a tank cover 102. The tank cover 102 is detachably connected to the tank body 101. Valves 103 are installed at both the feed inlet and the discharge outlet of the fermentation tank. A water pipe bracket 104 is installed on the tank cover 102 to support an external water pipe 109. The cleaning section and the stirring section are both installed on the tank cover 102.

[0048] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0049] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A biological fermentation device with self-cleaning function, comprising a fermentation tank, characterized in that: The fermenter is equipped with a cleaning section and a stirring section. The stirring section includes a stirring shaft (114) and a stirring paddle (115) rotatably connected to the stirring shaft (114). A torsion spring is provided between the stirring shaft (114) and the stirring paddle (115). The cleaning section includes a cleaning unit and a driving unit. The cleaning unit includes a water conveying shaft and a side wall cleaning group and a stirring section cleaning group connected to the water conveying shaft. The water conveying shaft is inserted into the fermenter. The stirring shaft (114) is slidably connected to the water conveying shaft. A rotating connector (110) is provided on the water conveying shaft. The water conveying shaft is connected to an external water pipe (109) through the rotating connector (110). The water conveying shaft delivers water to the side wall cleaning group and the stirring section cleaning group in sequence. The side wall cleaning group sprays water onto the side wall of the fermenter for rinsing, and the stirring section cleaning group sprays water onto the stirring section for rinsing.

2. The biological fermentation device with self-cleaning function according to claim 1, characterized in that: The water conveying shaft includes an outer shaft (111), an inner shaft (113), a connecting piece (120), and a reinforcing ring (112). The outer shaft (111) and the inner shaft (113) are respectively fixedly connected to the connecting piece (120). The reinforcing ring (112) is disposed between the outer shaft (111) and the inner shaft (113). The stirring shaft (114) is slidably connected to the inner shaft (113). The outer shaft (111) is provided with a side drain hole (121), and the connecting piece (120) is provided with a bottom drain hole (127). The sidewall cleaning assembly includes a sidewall cleaning... The cleaning pipe (116) is installed on the outer shaft (111). The end of the side wall cleaning pipe (116) is provided with a scraper (117) and a side wall spray hole (126). The stirring part cleaning group includes a connecting plate (122) and a stirring part spray plate (123). The connecting plate (122) is rotatably connected to the connecting piece (120). The connecting plate (122) and the stirring part spray plate (123) are connected by bolts. The stirring part spray plate (123) is provided with radial spray holes (124) and oblique spray holes (125).

3. The biological fermentation device with self-cleaning function according to claim 2, characterized in that: The scraper (117) is inclined, and a plurality of side wall spray holes (126) are distributed on both sides of the scraper (117).

4. The biological fermentation device with self-cleaning function according to claim 2, characterized in that: The radial spray hole (124) is arranged radially along the spray plate (123) of the stirring part. The inlet end of the oblique spray hole (125) is higher than the outlet end. The distance from the inlet end to the axis is greater than the distance from the outlet end to the axis. The projections of the inlet end and the outlet end in the axial direction are not on the same radius line.

5. The biological fermentation device with self-cleaning function according to any one of claims 2-4, characterized in that: The drive unit includes a longitudinal motor (105) and a rotary motor (108). A first gear (106) is mounted on the longitudinal motor (105), and a second gear (107) is mounted on the rotary motor (108). Multiple toothed rings (118) are arranged linearly on the outer shaft (111), and multiple teeth (119) are arranged circumferentially on the toothed rings (118).

6. The biological fermentation device with self-cleaning function according to claim 5, characterized in that: The fermentation tank includes a tank body (101) and a tank cover (102). The tank cover (102) is detachably connected to the tank body (101). The inlet and outlet of the fermentation tank are equipped with valves (103). A water pipe bracket (104) is installed on the tank cover (102). The water pipe bracket (104) is used to support the external water pipe (109).

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