A fermentation tank for preparing xanthan gum by starch fermentation

Abstract

The invention relates to the technical field of fermentation tanks, and discloses a fermentation tank for preparing xanthan gum by starch fermentation, comprising two stirring temperature control mechanisms, two medium transmission mechanisms and a contact-type limiting mechanism, wherein a second hollow annular body sleeved on the periphery of a medium transmission pipe and an annular rubber sheet embedded in the inner circumferential surface of the second hollow annular body and deformed toward the central area and abutting against the circumferential surfaces of multiple driven wheels are arranged inside the fermentation tank for preparing xanthan gum by starch fermentation. The fermentation tank for preparing xanthan gum by starch fermentation utilizes the horizontal turning principle to enable the fermentation product to be in an all-round turning phenomenon under the action of gravity, and in the process of material turning, the revolution and rotation of the stirring temperature control mechanism can effectively improve the movement rate of the fermentation product to accelerate the fermentation efficiency. In addition, the stirring temperature control mechanism can also perform a wide range of temperature transfer effect on the contacted fermentation product, thereby improving the quality of the raw material after fermentation.

Description

Technical Field

[0001] The invention relates to the technical field of fermentation tanks, in particular to a fermentation tank for preparing xanthan gum by starch fermentation. Background Art

[0002] Xanthan gum is made from sugars fermented by Xanthomonas and has multiple functions. It can be used as an emulsifier, stabilizer, gel thickener, wetting agent, film-forming agent, etc. and is widely used in various fields of the national economy.

[0003] For example, a Chinese patent with publication number "CN111808729A" discloses "a fermentation tank for preparing xanthan gum by starch fermentation", whose main structure includes a cylindrical tank body; the tank body is provided with a feed port, a discharge port, a pressure device, various auxiliary material addition ports and a cleaning pipe; the tank body is provided with a stirring shaft and an upper stirring blade arranged on the stirring shaft; the bottom of the tank body is provided with an aeration plate and an air inlet pipe; the stirring shaft adopts a hollow shaft, and a sleeved inner sleeve is arranged inside; the lower end of the inner sleeve extends from the bottom of the stirring shaft and is provided with a lower stirring blade; the upper stirring blade and the lower stirring blade are both distributed in a vertical arc shape; the opening of the aeration plate is arranged at the bottom, and a mesh cover is arranged under the aeration plate; a plurality of hollow balls floating on the liquid surface are arranged in the tank body. This fermentation tank for preparing xanthan gum by starch fermentation allows the material to roll up and down during stirring, and the aeration plate and temperature control structure are optimized.

[0004] However, in actual use, since the raw materials of the fermentation are in a solid powder structure, it is very difficult to tumble vertically, and the raw materials inside the tank still have the disadvantage of poor movement effect. In addition, the temperature control area of ​​the raw materials during fermentation is relatively narrow, resulting in poor temperature control effect. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a fermentation tank for preparing xanthan gum by starch fermentation. By utilizing the horizontal flipping principle, the fermented material can be flipped in all directions under the action of gravity. Moreover, during the material flipping process, the revolution and rotation of the stirring temperature control mechanism can effectively increase the movement rate of the fermented material to accelerate the fermentation efficiency. In addition, the stirring temperature control mechanism can also perform a large-scale temperature transfer effect on the fermented material it contacts, thereby improving the quality of the raw materials after fermentation, thereby solving the above-mentioned technical problems.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fermentation tank for preparing xanthan gum by starch fermentation, comprising a horizontal drum installed at the center of two supporting bases through bearings, a raw material fermentation chamber arranged inside the horizontal drum, a raw material delivery port connecting the circumferential side of the raw material fermentation chamber and the external space, a cover body covering the inside of the raw material delivery port, a driving motor fixedly installed at the center of another supporting base, a rotor of the driving motor capable of driving the horizontal drum to rotate, and a plurality of No. 1 component mounting holes arranged on the end surface of the horizontal drum, and also comprising two stirring temperature control mechanisms, wherein a stirring temperature control mechanism is arranged inside thereof, which passes through the horizontal drum and can rotate with the horizontal drum. The rotation of the drum generates a plurality of medium transmission tubes that revolve around the axis of the horizontal drum and a driven wheel fixedly mounted on the outer circumferential surface of the medium transmission tube; two medium transmission mechanisms, each of which is provided with a No. 1 hollow annular body capable of transmitting the temperature-controlled liquid and an axial body insertion hole rotatably mounted at one end of the No. 1 hollow annular body and fixedly mounted at the end of the medium transmission tube; and a contact-type limiting mechanism, each of which is provided with a No. 2 hollow annular body sleeved on the outer periphery of the medium transmission tube and an annular rubber sheet embedded in the inner circumferential surface of the No. 2 hollow annular body and deformed toward the center area after being subjected to liquid pressure and contacting the circumferential surfaces of the plurality of driven wheels.

[0007] Preferably, the stirring temperature control mechanism includes a medium transmission pipe which passes through the raw material fermentation chamber and the No. 1 component mounting hole in sequence from the inside to the outside; the medium transmission pipe is installed inside the No. 1 component mounting hole through a mechanical sealing structure at the pipe body which passes through the No. 1 component mounting hole; the medium transmission pipe is fixedly provided with a winged stirring blade on the periphery of the rod body located inside the raw material fermentation chamber; the medium transmission pipe is fixedly provided with a driven wheel on the periphery of the shaft body located outside the horizontal drum; and the medium transmission pipe is provided with a No. 1 medium flow hole which connects its two end faces.

[0008] Preferably, the medium transmission tube and the winged stirring blades are both made of metal alloy materials.

[0009] Preferably, the axis of the medium transmission pipe is arranged to deviate from the axis of the raw material fermentation chamber and to be close to the inner circumferential surface of the horizontal drum.

[0010] Preferably, the medium transmission mechanism includes a No. 1 hollow annular body located at the end of the medium transmission pipe and fixedly installed on the top of a supporting base, a No. 1 ring hole is arranged at the center of the No. 1 hollow annular body, a No. 1 annular cavity is arranged inside the No. 1 hollow annular body, and the No. 1 hollow annular body is provided with an annular mounting groove with a concave structure and connected to the No. 1 annular cavity on the annular end face facing the medium transmission pipe, the No. 1 hollow annular body is provided with a No. 1 component docking channel with an integral structure therewith on the outer circumferential surface, and a No. 2 medium flow hole connecting the external space and the No. 1 annular cavity is arranged inside the No. 1 component docking channel, and the No. 1 hollow annular body is provided with an annular plate body installed at the position of the No. 1 hollow annular body located in the annular mounting groove through a mechanical sealing structure, and the annular plate body is provided with an axial body insertion hole for fixedly installing the medium transmission pipe body.

[0011] Preferably, during operation, the docking channel of component No. 1 is docked with a liquid circuit of a temperature control device capable of controlling the temperature of the liquid.

[0012] Preferably, the first hollow annular body and the annular plate body are both made of heat-insulating materials.

[0013] Preferably, the abutment-type limiting mechanism comprises a No. 2 hollow annular body fixedly mounted on the top of a supporting base, a No. 2 annular hole located on the periphery of the driven wheel is arranged at the center of the No. 2 hollow annular body, a No. 2 annular cavity is arranged inside the No. 2 hollow annular body, a concave annular embedding groove connected to the inner side of the No. 2 annular cavity is arranged on the inner circumferential surface of the No. 2 hollow annular body, an annular rubber sheet is embedded in the No. 2 hollow annular body in the annular embedding groove, a No. 2 docking channel of an integrated structure is arranged on the outer circumferential surface of the No. 2 hollow annular body, a No. 3 medium which connects the external space and the No. 2 annular cavity and has a liquid valve installed inside is arranged inside the No. 2 docking channel flow hole, the outer circumferential surface of the No. 2 hollow annular body is provided with an axial protrusion structure of an integrated structure, a component movable cavity is provided inside the axial protrusion structure, a No. 4 medium flow hole connecting the component movable cavity and the No. 2 annular cavity is provided inside the axial protrusion structure, a No. 5 medium flow hole connecting the component movable cavity and the external space is provided inside the axial protrusion structure, a valve plate capable of axially moving along the component movable cavity is arranged inside the axial protrusion structure located in the component movable cavity, an annular sealing ring is embedded in the end face of the valve plate facing the No. 4 medium flow hole, and a coil spring in a compressed state is arranged on the other end face of the valve plate.

[0014] Preferably, the annular rubber sheet is made of a deformable rubber material.

[0015] Preferably, one end of the annular sealing ring protrudes outward relative to the embedded end surface of the valve plate, and the inner ring structural radius of the annular sealing ring is larger than the structural radius of the No. 4 medium flow hole.

[0016] Compared with the prior art, the present invention provides a fermentation tank for preparing xanthan gum by starch fermentation, which has the following beneficial effects:

[0017] By utilizing the horizontal turning principle, the fermented material can be turned in all directions under the action of gravity. Moreover, during the turning process of the material, the revolution and rotation of the stirring temperature control mechanism can effectively increase the movement rate of the fermented material to speed up the fermentation efficiency. In addition, the stirring temperature control mechanism can also transfer a large range of temperature to the fermented material it contacts, thereby improving the quality of the raw materials after fermentation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A perspective view of the present invention;

[0019] Figure 2 It is a three-dimensional cross-sectional view of the present invention at a first viewing angle;

[0020] Figure 3 is a three-dimensional cross-sectional view of the present invention at a second viewing angle;

[0021] Figure 4 It is a three-dimensional diagram of the stirring temperature control mechanism of the present invention;

[0022] Figure 5 is a three-dimensional cross-sectional view of the medium transmission mechanism of the present invention;

[0023] Figure 6 It is a three-dimensional cross-sectional view of the interfering limiting mechanism in the present invention at a first viewing angle;

[0024] Figure 7 It is a three-dimensional cross-sectional view of the interference type limiting mechanism in the present invention at a second viewing angle.

[0025] Among them: 1. horizontal drum; 2. support base; 3. raw material delivery port; 4. cover; 5. raw material fermentation chamber; 6. No. 1 component installation hole; 7. drive motor; 8. rotor; 9. stirring temperature control mechanism; 91. medium transmission pipe; 92. wing-shaped stirring blade; 93. driven wheel; 94. No. 1 medium flow hole; 10. medium transmission mechanism; 101. No. 1 hollow annular body; 102. No. 1 annular hole; 103. No. 1 annular cavity; 104. No. 2 medium flow hole; 105. annular installation groove; 106. annular plate; 107 , shaft insertion hole; 108, component docking channel No. 1; 11, resistance-type limiting mechanism; 111, hollow annular body No. 2; 112, annular cavity No. 2; 113, annular embedding groove; 114, annular rubber sheet; 115, docking channel No. 2; 116, medium flow hole No. 3; 117, No. 2 annular hole; 118, axial protrusion structure; 119, component movable cavity; 1110, medium flow hole No. 4; 1111, medium flow hole No. 5; 1112, valve plate; 1113, annular sealing ring; 1114, spiral spring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1 , Figure 2 and Figure 3 , a fermentation tank for preparing xanthan gum by starch fermentation, comprising a horizontal drum 1 installed at the center of two supporting bases 2 through a bearing, a raw material fermentation chamber 5 arranged inside the horizontal drum 1, a raw material delivery port 3 connecting the circumferential side of the raw material fermentation chamber 5 and the external space, a cover body 4 covering the raw material delivery port 3, a driving motor 7 fixedly installed at the center of another supporting base 2, a rotor 8 of the driving motor 7 capable of driving the horizontal drum 1 to rotate, and a plurality of No. 1 component mounting holes 6 arranged on the end surface of the horizontal drum 1. The horizontal drum 1 is controlled by the driving motor 7 so that the raw material delivery port 3 faces upward, the cover body 4 is opened, and the raw material for preparing xanthan gum by starch fermentation is delivered into the raw material fermentation chamber 5 from the raw material delivery port 3, and then the cover body 4 is closed, and then the driving motor 7 is started, the rotor 8 will drive the horizontal drum 1 to rotate, so as to realize the rotary fermentation of the raw material, and when the fermentation is completed, the raw material delivery port 3 faces downward, the cover body 4 is opened, and the raw material is discharged under the action of gravity.

[0028] In order to achieve the stirring and temperature transfer function of the fermentation raw materials, please refer to Figure 1 , Figure 2, Figure 3 and Figure 4 , it is necessary to set up two stirring temperature control mechanisms 9, which are provided with a plurality of medium transmission tubes 91 that penetrate the horizontal drum 1 and can revolve around the axis of the horizontal drum 1 as the horizontal drum 1 rotates, and a driven wheel 93 fixedly installed on the outer circumferential surface of the medium transmission tube 91. The rotor 8 drives the horizontal drum 1 to rotate, and the horizontal drum 1 will drive the medium transmission tube 91 and the driven wheel 93 to revolve around the axis of the horizontal drum 1. The revolution cooperates with the flipping of the raw materials under the action of gravity, and can have a contact stirring effect on the contacted fermentation raw materials. At the same time, the driven wheel 93 will drive the medium transmission tube 91 to rotate around its own axis. The rotation can make the wing-shaped stirring blade 92 have a stirring effect on the fermentation, thereby achieving stirring of the fermentation raw materials. At the same time, the liquid that meets the temperature will make the medium transmission tube 91 at a suitable temperature, thereby having a heat transfer effect on the contacted fermentation raw materials, so that the temperature of the fermentation raw materials is effectively controlled.

[0029] For the specific structure of the stirring temperature control mechanism 9, please refer to Figure 4 , including a medium transmission pipe 91 that passes through the raw material fermentation chamber 5 and the No. 1 component mounting hole 6 in sequence from the inside to the outside, the axis of the medium transmission pipe 91 is set to one side of the axis of the raw material fermentation chamber 5, and is close to the inner circumferential surface of the horizontal drum 1, the medium transmission pipe 91 is installed inside the No. 1 component mounting hole 6 through a mechanical sealing structure at the tube body that passes through the No. 1 component mounting hole 6, the medium transmission pipe 91 is fixedly installed with a winged stirring blade 92 on the periphery of the rod body located inside the raw material fermentation chamber 5, in order to have an efficient heat transfer effect, it is necessary to make the medium transmission pipe 91 and the winged stirring blade 92 both made of metal alloy material, the medium transmission pipe 91 is fixedly installed with a driven wheel 93 on the periphery of the shaft body located outside the horizontal drum 1, and the medium transmission pipe 91 is provided with a No. 1 medium flow hole 94 connecting its two end faces inside.

[0030] In order to realize the temperature control function of the medium transmission pipe 91, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 5, two medium transmission mechanisms 10 need to be set up, which are provided with a No. 1 hollow annular body 101 capable of transmitting the temperature-controlled liquid and a shaft insertion hole 107 rotatably installed at one end of the No. 1 hollow annular body 101 and fixedly installed at the end of the medium transmission pipe 91. When working, the No. 1 component docking channel 108 is docked with a liquid circuit of a temperature control device that can control the temperature of the liquid. The temperature control device is started, so that the temperature-controlled liquid can flow along the No. 1 annular cavity 103 and the No. 2 medium flow hole 104 to the No. 1 medium flow hole 94, thereby changing the temperature of the medium transmission pipe 91 and the winged stirring blade 92, so that the medium transmission pipe 91 and the winged stirring blade 92 can transfer the temperature of the fermentation raw material.

[0031] For the specific structure of the medium transmission mechanism 10, please refer to Figure 5 , including a No. 1 hollow annular body 101 located at the end of the medium transmission pipe 91 and fixedly installed on the top of a support base 2, a No. 1 ring hole 102 is arranged at the center of the No. 1 hollow annular body 101, a No. 1 annular cavity 103 is arranged inside the No. 1 hollow annular body 101, the No. 1 hollow annular body 101 is provided with an annular mounting groove 105 with an inner concave structure and connected to the No. 1 annular cavity 103 on the annular end surface facing the medium transmission pipe 91, and the outer circumferential surface of the No. 1 hollow annular body 101 is provided with an integral The component No. 1 docking channel 108 of the structure, the interior of the component No. 1 docking channel 108 is provided with a No. 2 medium flow hole 104 connecting the external space and the No. 1 annular cavity 103, the No. 1 hollow annular body 101 is installed with an annular plate body 106 at the position located in the annular mounting groove 105 through a mechanical sealing structure, the No. 1 hollow annular body 101 and the annular plate body 106 are both made of heat-insulating materials, and the interior of the annular plate body 106 is provided with an axial body insertion hole 107 for fixing the medium transmission pipe 91.

[0032] In order to enable the medium transmission tube 91 to produce self-rotation, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 6 and Figure 7 , it is necessary to set up a resistance-type limiting mechanism 11, inside which is provided a No. 2 hollow annular body 111 which is placed on the outer periphery of the medium transmission tube 91 and an annular rubber sheet 114 which is embedded in the inner circumferential surface of the No. 2 hollow annular body 111 and deforms toward the center area after being subjected to liquid pressure and resists against the circumferential surfaces of multiple driven wheels 93. When working, a liquid is injected into the No. 2 annular cavity 112 by a liquid injection device. The liquid needs to make the annular rubber sheet 114 deform inwardly and resist against the corresponding circumferential surfaces of multiple driven wheels 93. When the driven wheel 93 revolves, due to the action of friction, the driven wheel 93 will drive the medium transmission tube 91 to rotate.

[0033] For the specific structure of the abutment-type limiting mechanism 11, please refer to Figure 6 and Figure 7 , including a second hollow annular body 111 fixedly mounted on the top of a support base 2, a second annular hole 117 located at the periphery of the driven wheel 93 is arranged at the center of the second hollow annular body 111, a second annular cavity 112 is arranged inside the second hollow annular body 111, and an annular embedding groove 113 which is concave and communicated with the inner side of the second annular cavity 112 is arranged on the inner circumferential surface of the second hollow annular body 111, and the second hollow annular body 111 is located at the annular embedding groove 113. An annular rubber sheet 114 is embedded inside, and the annular rubber sheet 114 is made of a deformable rubber material. The outer circumferential surface of the No. 2 hollow annular body 111 is provided with a No. 2 docking channel 115 of an integrated structure. The interior of the No. 2 docking channel 115 is provided with a No. 3 medium flow hole 116 which connects the external space and the No. 2 annular cavity 112 and has a liquid valve installed inside. The outer circumferential surface of the No. 2 hollow annular body 111 is provided with an integrated axial protrusion structure 118, and the interior of the axial protrusion structure 118 is provided with a component movable cavity 119, and the interior of the axial protrusion structure 118 is provided with a No. 4 medium flow hole 1110 which connects the component movable cavity 119 and the No. 2 annular cavity 112, and the interior of the axial protrusion structure 118 is provided with a No. 5 medium flow hole 1111 which connects the component movable cavity 119 and the external space, and the axial protrusion structure 118 is provided with a valve which can move along the component movable cavity 119. The cavity 119 has a valve plate 1121 that moves axially, and an annular sealing ring 1113 is embedded in the end face of the valve plate 1121 facing the No. 4 medium flow hole 1110. One end of the annular sealing ring 1113 protrudes outwardly relative to the embedded end face of the valve plate 1121, and the inner ring structure radius of the annular sealing ring 1113 is larger than the structure radius of the No. 4 medium flow hole 1110. The other end face of the valve plate 1121 is provided with a coil spring 1114 in a compressed state.

[0034] When in use, the horizontal drum 1 is controlled by driving the motor 7 so that the raw material delivery port 3 faces upward, the cover 4 is opened, and the raw material for preparing xanthan gum by starch fermentation is delivered into the raw material fermentation chamber 5 from the raw material delivery port 3. After closing the cover 4, the driving motor 7 is started, and the rotor 8 drives the horizontal drum 1 to rotate. The horizontal drum 1 will drive the medium transmission tube 91 and the driven wheel 93 to produce a revolution around the axis of the horizontal drum 1. The revolution cooperates with the flipping of the raw material under the action of gravity, and can perform a contact stirring effect on the contacted fermentation raw materials. At the same time, the driven wheel 93 will drive the medium transmission tube 91 to produce a rotation phenomenon around its own axis. The rotation can make the winged stirring blade 92 have a stirring effect on the fermented material, thereby achieving stirring of the fermentation raw materials. At the same time, the liquid that meets the temperature will make the medium transmission tube 91 at a suitable temperature, thereby performing a heat transfer effect on the contacted fermentation raw materials. When the fermentation is completed, the raw material delivery port 3 faces downward, the cover 4 is opened, and the raw materials are discharged under the action of gravity.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fermentation tank for preparing xanthan gum by starch fermentation, comprising a horizontal drum (1) mounted at the center of two supporting bases (2) via bearings, a raw material fermentation chamber (5) arranged inside the horizontal drum (1), a raw material delivery port (3) communicating the circumferential side of the raw material fermentation chamber (5) and the external space, a cover (4) covering the inside of the raw material delivery port (3), a driving motor (7) fixedly mounted at the center of the other supporting base (2), a rotor (8) of the driving motor (7) capable of driving the horizontal drum (1) to rotate, and a plurality of No. 1 component mounting holes (6) arranged on the end surface of the horizontal drum (1), characterized in that: Also includes, Two stirring temperature control mechanisms (9) are provided with a plurality of medium transmission pipes (91) penetrating the horizontal drum (1) and capable of revolving around the axis of the horizontal drum (1) as the horizontal drum (1) rotates, and a driven wheel (93) fixedly mounted on the outer circumferential surface of the medium transmission pipes (91); Two medium transmission mechanisms (10), each of which is provided with a first hollow annular body (101) capable of transmitting a temperature-controlled liquid, and a shaft body insertion hole (107) rotatably mounted on one end of the first hollow annular body (101) and fixedly mounted on the end of the medium transmission pipe (91); and a contact-type limiting mechanism (11), which is provided with a second hollow annular body (111) sleeved on the periphery of the medium transmission tube (91) and an annular rubber sheet (114) embedded in the inner circumferential surface of the second hollow annular body (111) and deforming toward the central area and contacting the circumferential surfaces of the plurality of driven wheels (93) after being subjected to liquid pressure.

2. A fermentation tank for preparing xanthan gum by starch fermentation according to claim 1, characterized in that: The stirring temperature control mechanism (9) includes a medium transmission pipe (91) that passes through the raw material fermentation chamber (5) and the No. 1 component mounting hole (6) from the inside to the outside in sequence. The medium transmission pipe (91) is installed inside the No. 1 component mounting hole (6) through a mechanical sealing structure at the pipe body that passes through the No. 1 component mounting hole (6). The medium transmission pipe (91) is fixedly provided with a wing-shaped stirring blade (92) on the periphery of the rod body located inside the raw material fermentation chamber (5). The medium transmission pipe (91) is fixedly provided with a driven wheel (93) on the periphery of the shaft body located outside the horizontal drum (1). The medium transmission pipe (91) is provided with a No. 1 medium flow hole (94) that connects its two end faces.

3. A fermentation tank for preparing xanthan gum by starch fermentation according to claim 2, characterized in that: The medium transmission tube (91) and the wing-shaped stirring blade (92) are both made of metal alloy material.

4. A fermentation tank for preparing xanthan gum by starch fermentation according to claim 3, characterized in that: The axis of the medium transmission pipe (91) is arranged to deviate from the axis of the raw material fermentation chamber (5) and is close to the inner circumferential surface of the horizontal drum (1).

5. A fermentation tank for preparing xanthan gum by starch fermentation according to claim 4, characterized in that: The medium transmission mechanism (10) comprises a first hollow annular body (101) located at the end of a medium transmission pipe (91) and fixedly mounted on the top of a support base (2); a first ring hole (102) is arranged at the center of the first hollow annular body (101); a first annular cavity (103) is arranged inside the first hollow annular body (101); a first hollow annular body (101) is provided with an annular mounting groove (105) having an inner concave structure and communicating with the first annular cavity (103) on the annular end surface facing the medium transmission pipe (91); The outer circumferential surface of the core annular body (101) is provided with a No. 1 component docking channel (108) which is an integral structure therewith, and the interior of the No. 1 component docking channel (108) is provided with a No. 2 medium flow hole (104) which is connected with the external space and the No. 1 annular cavity (103), and the No. 1 hollow annular body (101) is installed with an annular plate body (106) at the position located in the annular mounting groove (105) through a mechanical sealing structure, and the interior of the annular plate body (106) is provided with an axial body insertion hole (107) for fixing and installing the medium transmission pipe (91) body.

6. A fermentation tank for preparing xanthan gum by starch fermentation according to claim 5, characterized in that: When in operation, the first component docking channel (108) is docked with a liquid circuit of a temperature control device capable of controlling the temperature of the liquid.

7. A fermentation tank for preparing xanthan gum by starch fermentation according to claim 6, characterized in that: The first hollow annular body (101) and the annular plate body (106) are both made of heat-insulating materials.

8. A fermentation tank for preparing xanthan gum by starch fermentation according to claim 7, characterized in that: The abutment-type limiting mechanism (11) comprises a second hollow annular body (111) fixedly mounted on the top of a supporting base (2); a second annular hole (117) located on the periphery of the driven wheel (93) is arranged at the center of the second hollow annular body (111); a second annular cavity (112) is arranged inside the second hollow annular body (111); and an annular insert (117) is arranged on the inner circumferential surface of the second hollow annular body (111) and is concave and communicates with the inner side of the second annular cavity (112). The second hollow annular body (111) is provided with an annular rubber sheet (114) embedded in the annular embedding groove (113); the outer circumferential surface of the second hollow annular body (111) is provided with an integrated second docking channel (115); the interior of the second docking channel (115) is provided with a third medium flow hole (116) which is connected with the external space and the second annular cavity (112) and has a liquid valve installed therein; The outer circumferential surface of the body (111) is provided with an axial protrusion structure (118) of an integrated structure, the interior of the axial protrusion structure (118) is provided with a component movable cavity (119), the interior of the axial protrusion structure (118) is provided with a fourth medium flow hole (1110) connecting the component movable cavity (119) and the second annular cavity (112), and the interior of the axial protrusion structure (118) is provided with a medium flow hole (1110) connecting the component movable cavity (119) and the outside. The fifth medium flow hole (1111) of the space, the axial protrusion structure (118) is provided with a valve plate (1121) which can move axially along the component movable cavity (119) inside the component movable cavity (119), the valve plate (1121) is embedded with an annular sealing ring (1113) on the end face facing the fourth medium flow hole (1110), and the other end face of the valve plate (1121) is provided with a helical spring (1114) in a compressed state.

9. A fermentation tank for preparing xanthan gum by starch fermentation according to claim 8, characterized in that: The annular rubber sheet (114) is made of a deformable rubber material.

10. A fermentation tank for preparing xanthan gum by starch fermentation according to claim 9, characterized in that: One end of the annular sealing ring (1113) protrudes outwardly relative to the valve plate (1121) at the embedded end surface, and the inner ring structure radius of the annular sealing ring (1113) is greater than the structure radius of the No. 4 medium flow hole (1110).

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