Internal stirring device of anaerobic fermentation tank

Abstract

The utility model relates to an anaerobic fermentation tank internal stirring device which comprises a sealing cover and a mounting cover, the sealing cover is detachably connected with a top opening of a fermentation tank, the shape of the sealing cover is matched with that of the top opening of the fermentation tank, a through hole is formed in the middle of the sealing cover, the mounting cover is detachably connected to the through hole, and a motor is arranged in the center of the top of the mounting cover. The center of the bottom of the mounting cover is rotatably connected with a rotating head, a driving rod of the motor is coaxially connected with the top of the rotating head, the bottom of the rotating head is coaxially connected with a stirring assembly, the stirring assembly is formed by vertically connecting a plurality of rotating rods, the vertically adjacent rotating rods are detachably connected, and transverse rods are arranged at the bottoms of the side faces of the rotating rods; the far end of the transverse rod is rotationally connected with the inner end of the stirring rod, lifting assemblies are arranged on the side face of the rotating rod, the lower ends of the lifting assemblies are connected with the inner end of the stirring rod, and the vertically adjacent lifting assemblies are connected through connecting ropes. The stirring device has the advantages of wide application range and convenience in taking out the stirring component.

Description

TECHNICAL FIELD

[0001] The utility model relates to fermentation equipment technical field, concretely relates to an anaerobic fermentation tank internal stirring device. BACKGROUND

[0002] The fermentation tank is the external environment device that microorganism grows, breeds and forms product in the fermentation process, it replaces the traditional fermentation container, is suitable for the production of a variety of products and energy consumption is low, and stirring is the important component of fermentation process, purpose is to let raw material distribution even, increase raw material and microorganism matrix contact, and stirring is usually completed by the stirring device in the fermentation tank.

[0003] The shape of traditional stirring device is generally fixed, limits the range of applicable fermentation tank, in addition, stirring device is fixedly installed in the fermentation tank and is difficult to remove, and staff cannot directly contact the stirring device, which increases the cleaning difficulty. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing an anaerobic fermentation tank internal stirring device, which has the advantages of wide application range and convenient stirring assembly removal.

[0005] The technical scheme of the utility model is as follows:

[0006] An anaerobic fermentation tank internal stirring device, comprising a cover and a mounting cover, the cover is detachably connected with the top opening of the fermentation tank, the shape of the cover is matched with the shape of the top opening of the fermentation tank, a through hole is arranged in the middle of the cover, the mounting cover is detachably connected with the through hole, a motor is arranged at the top center of the mounting cover, a rotating head is rotatably connected to the bottom center of the mounting cover, the driving rod of the motor is coaxially connected to the top of the rotating head, a stirring assembly is coaxially connected to the bottom of the rotating head, the stirring assembly is formed by a plurality of rotating rods connected in an up-down manner, the rotating rods are detachably connected in an up-down manner, a horizontal rod is arranged at the bottom of the side surface of the rotating rod, the horizontal rod is rotatably connected to the inner end of the stirring rod at the far end, a lifting assembly is arranged on the side surface of the rotating rod, the inner end of the stirring rod is connected to the lower end of the lifting assembly, the lifting assemblies are connected by connecting ropes in an up-down manner, the farthest distance between the stirring rod and the rotating rod is greater than the radius of the through hole, when the far end of the stirring rod is lifted to the highest position, the distance between the stirring rod and the rotating rod is less than the radius of the through hole.

[0007] Preferably, the far end of the horizontal rod is provided with a rotating groove, the inner end of the stirring rod is placed in the rotating groove and is rotatably connected to the rotating groove, when the stirring rod is not pulled by the lifting assembly and is placed horizontally, the stirring rod abuts against the lower wall of the rotating groove, when the far end of the stirring rod is lifted to the highest position, the stirring rod abuts against the upper wall of the rotating groove.

[0008] Preferably, the lower wall of the rotating groove is provided with a magnet block capable of magnetically attracting the stirring rod.

[0009] Preferably, the top of the stirring rod is uniformly provided with stirring branch rods along the length direction, and the rotating rod is provided with receiving openings corresponding to the stirring branch rods.

[0010] Preferably, the lifting assembly comprises a limiting groove, a pulling rope A, a pulling rope B and a rope ring, the side surface of the rotating rod is provided with a pair of limiting grooves opposite to each other, the upper and lower ends of the pulling rope A are respectively threaded through the corresponding limiting grooves and are respectively connected with the rope rings, the rope ring located at the lower side is connected with the inner end of the stirring rod through the pulling rope B, and the adjacent rope rings of the upper and lower adjacent rotating rods are connected through a connecting rope.

[0011] Preferably, the rotating rod is provided with a guide hole, the inner end of the guide hole is close to the stirring rod, and the outer end of the guide hole is close to the limiting groove at the lower side, and the pulling rope B is threaded through the guide hole.

[0012] Preferably, the bottom center of the inside of the fermentation tank is rotationally connected with a butt joint seat, the butt joint seat rotates around an axis, the top center of the butt joint seat is provided with an insertion opening along the axis, the bottom of the lowermost rotating rod is detachably connected with an insertion rod corresponding to the insertion opening, the insertion rod is coaxial with the rotating rod, the lower end of the insertion rod is put into the insertion opening, and the cross section of the insertion opening is a regular polygon.

[0013] Preferably, the mounting cover is provided with a pair of front and rear symmetrical operation openings, and the lifting assembly of the uppermost rotating rod can be pulled through the operation openings by the staff, the operation openings are provided with sealing covers, and the mounting cover is provided with a pair of left and right symmetrical handles.

[0014] Preferably, the upper and lower ends of the rotating rod are respectively provided with through holes communicating with each other, the end portions of the adjacent rotating rods are sleeved with the same connecting sleeve, the connecting sleeve is provided with screw holes A corresponding to the through holes, and the detachable connection between the adjacent rotating rods through the connecting sleeve is realized by screwing connecting screws into the overlapping screw holes A and through holes.

[0015] Preferably, the outer edge of the sealing cover and the outer edge of the opening in the top of the fermentation tank are respectively provided with screw holes B corresponding to each other, the detachable connection between the sealing cover and the fermentation tank is realized by screwing fixing bolts into the overlapping screw holes B, and the outer edge of the mounting cover and the outer edge of the top of the through opening are respectively provided with screw holes C corresponding to each other, and the detachable connection between the mounting cover and the sealing cover is realized by screwing fixing screws into the overlapping screw holes C.

[0016] The utility model has the beneficial technical effect that:

[0017] 1. The shape of the cap can be changed according to the shape of the opening at the top of the fermentation tank. By changing the number of connected rotating rods, the length of the stirring assembly can be adjusted according to the depth inside the fermentation tank, thus expanding the applicability of the stirring device.

[0018] 2. By using the lifting assembly and connecting rope together, workers can rotate the stirring rod upwards and remove the stirring assembly from the fermentation tank, facilitating cleaning and maintenance of the stirring assembly. During stirring operations, the lifting assembly is not pulled; the starting motor drives the connected stirring assembly to rotate via the rotating head. The stirring rod rotates around the rotating rod, stirring the material inside the fermentation tank. When stirring stops and the stirring rod needs cleaning, workers uncover the mounting rod and pull the top lifting assembly from the opening. Driven by the connecting rope, all lifting assemblies are pulled simultaneously. The pulled lifting assemblies pull the stirring rod upwards and folds it. After securing the lifting assembly, workers lift the mounting cover, allowing the folded stirring rod to pass smoothly through the opening. After the stirring rod is removed, workers take it to the cleaning area for maintenance. Attached Figure Description

[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0020] Figure 1 This is a front-view cross-sectional view of the present invention.

[0021] Figure 2 This is a right-side cross-sectional view of the present invention.

[0022] Figure 3 for Figure 1 Enlarged view of part A.

[0023] Figure 4 for Figure 1 Enlarged view of part B.

[0024] Figure 5 for Figure 2 Enlarged view of part C.

[0025] Figure 6 This is a front-view cross-sectional view of the rotating stirring rod of this utility model.

[0026] Figure 7 This is a right-view cross-sectional view of the rotating stirring rod of this utility model.

[0027] In the figure: 1 - cover, 2 - mounting cover, 3 - fermentation tank, 4 - through port, 5 - motor, 6 - rotating head, 7 - stirring assembly, 8 - rotating rod, 9 - cross rod, 10 - stirring rod, 11 - lifting assembly, 12 - connecting rope, 13 - rotating groove, 14 - magnet block, 15 - stirring branch rod, 16 - receiving port, 17 - limiting groove, 18 - pulling rope A, 19 - pulling rope B, 20 - rope ring, 21 - guide hole, 22 - butt joint seat, 23 - insertion port, 24 - insertion rod, 25 - operation port, 26 - sealing cover, 27 - handle, 28 - through hole, 29 - connecting sleeve, 30 - screw hole A, 31 - connecting screw, 32 - screw hole B, 33 - fixing bolt, 34 - screw hole C, 35 - fixing screw. DETAILED DESCRIPTION

[0028] The utility model will be described in further detail below in combination with the drawings and specific embodiments.

[0029] Embodiment:

[0030] As Figures 1 to 7 shown, the embodiment provides an anaerobic fermentation tank internal stirring device, including cover 1 and mounting cover 2, cover 1 is detachably connected with the top opening of fermentation tank 3, the shape of cover 1 is matched with the shape of the top opening of the installed fermentation tank 3, the middle part of cover 1 is provided with through port 4, mounting cover 2 is detachably connected on through port 4, the top center of mounting cover 2 is provided with motor 5, the bottom center of mounting cover 2 is rotatably connected with rotating head 6, the driving rod of motor 5 is coaxially connected with the top of rotating head 6, the bottom of rotating head 6 is coaxially connected with stirring assembly 7, stirring assembly 7 is formed by a plurality of rotating rods 8 connected in upper and lower, the adjacent rotating rods 8 in upper and lower are detachably connected, the bottom of the side surface of rotating rod 8 is provided with cross rod 9, the distal end of cross rod 9 is rotatably connected with the inner end of stirring rod 10, the side surface of rotating rod 8 is provided with lifting assembly 11, the inner end of stirring rod 10 is connected with the lower end of lifting assembly 11, the adjacent lifting assemblies 11 in upper and lower are connected through connecting rope 12, the farthest distance between the distal end of stirring rod 10 and rotating rod 8 is greater than the radius of through port 4, when the distal end of stirring rod 10 is turned to the highest position due to being pulled, the distance between the distal end of stirring rod 10 and rotating rod 8 is less than the radius of through port 4.

[0031] The shape of the cover 1 can be changed according to the shape of the opening at the top of the fermentation tank 3, and the length of the stirring assembly 7 can be adjusted according to the depth of the interior of the fermentation tank 3 by changing the number of the connected rotating rods 8, thus expanding the application range of the stirring device. By using the lifting assembly 11 and the connecting rope 12 together, the staff can take out the stirring assembly 7 from the fermentation tank 3 after turning the stirring rod 10 upward, thus facilitating the cleaning and maintenance of the stirring assembly 7; when the stirring operation is performed, the lifting assembly 11 is not pulled, the started motor 5 drives the connected stirring assembly 7 to rotate through the rotating head 6, the stirring rod 10 rotates around the rotating rod 8, and the rotating stirring rod 10 stirs the material in the interior of the fermentation tank 3; when the stirring operation is stopped and the stirring rod 10 needs to be cleaned, the staff removes the installation rod and pulls the uppermost lifting assembly 11 from the through opening 4, and under the driving of the connecting rope 12, all the lifting assemblies 11 are pulled at the same time, the pulled lifting assemblies 11 pull the stirring rod 10 to turn upward and fold, the staff fixes the lifting assembly 11 and then lifts the installation cover 2 upward, the folded stirring rod 10 can smoothly pass through the through opening 4, and after the stirring rod 10 is taken out, the staff sends it to a cleaning place for maintenance.

[0032] Further, the horizontal rod 9 is provided with a rotating groove 13 at the distal end, and the inner end of the stirring rod 10 is placed in the rotating groove 13 and is rotationally connected with the rotating groove 13; when the stirring rod 10 is not pulled by the lifting assembly 11 and is placed horizontally, the stirring rod 10 abuts against the lower wall of the rotating groove 13; when the distal end of the stirring rod 10 is turned upward to the highest position, the stirring rod 10 abuts against the upper wall of the rotating groove 13.

[0033] The rotating angle of the stirring rod 10 is limited within a suitable range by the rotating groove 13; when the stirring rod 10 is not pulled and turned upward, the stirring rod 10 is in the horizontal direction suitable for stirring the material, and when the stirring rod 10 is pulled and turned upward, the stirring rod 10 will not turn to collide with the rotating rod 8.

[0034] Further, the lower wall of the rotating groove 13 is provided with a magnet block 14 which can magnetically attract the stirring rod 10.

[0035] The magnet block 14 is used to enhance the connection strength between the stirring rod 10 and the lower wall of the rotating groove 13 when the stirring rod 10 is placed horizontally, so that the stirring rod 10 is not easy to deviate from the horizontal direction during stirring, and the stability of the stirred material is improved.

[0036] Further, the top of the stirring rod 10 is uniformly provided with stirring branch rods 15 along the length direction, and the rotating rod 8 is provided with receiving openings 16 corresponding to the stirring branch rods 15.

[0037] The stirring branch rods 15 are used to expand the stirring range of the stirring rod 10 and improve the stirring effect, and the receiving openings 16 provide space for the stirring branch rods 15 to turn upward with the stirring rod 10.

[0038] Further, the lifting assembly 11 comprises a limiting groove 17, a pulling rope A 18, a pulling rope B 19 and a rope ring 20, the side of the rotating rod 8 is provided with a pair of upper and lower opposing limiting grooves 17, the upper and lower ends of the pulling rope A 18 are respectively threaded through the corresponding limiting grooves 17 and are respectively connected with the rope ring 20, the lower rope ring 20 is connected with the inner end of the stirring rod 10 through the pulling rope B 19, and the adjacent rope rings 20 of the adjacent rotating rods 8 are connected through the connecting ropes 12.

[0039] Through the cooperation of the limiting groove 17 and the rope ring 20, the lifting direction and the lifting range of the pulling rope A 18 are limited, the movement of the pulling rope A 18 is more stable, when the staff pulls the uppermost rope ring 20 through the rope hook, rod hook and other tools, all the pulling ropes A 18 are pulled up at the same time under the driving of the connecting ropes 12, each stirring rod 10 is pulled up and turned under the driving of the pulling rope B 19, then the staff fixes the position of the tool, the stirring rod 10 cannot return to the horizontal direction under the driving of the pulling rope B 19, and the staff can lift the installation cover 2 to take out the stirring assembly 7 from the fermentation tank 3.

[0040] Further, the rotating rod 8 is provided with a guide hole 21, the inner end of the guide hole 21 is close to the stirring rod 10 and the outer end is close to the lower limiting groove 17, and the pulling rope B 19 passes through the guide hole 21.

[0041] The movement direction of the pulling rope B 19 is guided through the guide hole 21, so that the movement of the pulling rope B 19 is more stable.

[0042] Further, a docking seat 22 is rotatably connected to the center of the bottom of the fermentation tank 3, the docking seat 22 rotates around an axis, a plug-in hole 23 is arranged at the top center of the docking seat 22 along the axis, a plug-in rod 24 corresponding to the plug-in hole 23 is detachably connected to the bottom of the lowermost rotating rod 8, the plug-in rod 24 is coaxial with the rotating rod 8, the lower end of the plug-in rod 24 is put into the plug-in hole 23, and the cross-sectional shape of the plug-in hole 23 is a regular polygon.

[0043] Through the cooperation of the plug-in hole 23 and the plug-in rod 24, coaxial connection of the stirring assembly 7 and the docking seat 22 is realized, and the stability of the stirring assembly 7 during rotation is improved by the coaxial docking seat 22 of the rotating shaft.

[0044] Further, the installation cover 2 is provided with a pair of front and rear symmetrical operation openings 25, the staff can pull the lifting assembly 11 of the uppermost rotating rod 8 through the operation opening 25, a sealing cover 26 is arranged on the operation opening 25, and a pair of left and right symmetrical handles 27 are arranged on the installation cover 2.

[0045] The staff can pull the lifting assembly 11 through the operation opening 25, which facilitates the operation of folding the stirring rod 10, the sealing cover 26 is used to prevent foreign matter from entering the fermentation tank 3 from the operation opening 25, and the handle 27 provides a convenient part for grabbing and lifting, thereby reducing the difficulty of lifting the installation cover 2.

[0046] Further, the upper and lower ends of the rotating rod 8 are respectively provided with left and right through holes 28, the adjacent end portions of the rotating rod 8 are sleeved with a same connecting sleeve 29, the connecting sleeve 29 is provided with screw holes A30 corresponding to the through holes 28, and the detachable connection between the adjacent rotating rods 8 through the connecting sleeve 29 is realized by rotating connecting screws 31 into the overlapping screw holes A30 and the through holes 28.

[0047] The connecting screws 31 are simple in operation and convenient for assembling and disassembling the rotating rod 8. When two rotating rods 8 are connected, the end portions of the two rotating rods 8 are respectively inserted into the two ends of the same connecting sleeve 29, then the screw holes A30 of the connecting sleeve 29 are overlapped with the through holes 28 of the rotating rod 8, finally the connecting screws 31 are rotated into the overlapping screw holes A30 and the through holes 28, so that the two rotating rods 8 are stably connected with the connecting sleeve 29.

[0048] Further, the outer edge of the cover 1 and the outer edge of the top opening of the fermentation tank 3 are respectively provided with corresponding screw holes B32, the detachable connection between the cover 1 and the fermentation tank 3 is realized by rotating fixing bolts 33 into the overlapping screw holes B32, and the outer edge of the mounting cover 2 and the outer edge of the top of the through hole 4 are respectively provided with corresponding screw holes C34, the detachable connection between the mounting cover 2 and the cover 1 is realized by rotating fixing screws 35 into the overlapping screw holes C34.

[0049] The fixing bolts 33 and the fixing screws 35 are simple in operation and convenient for assembling and disassembling the cover 1 and the mounting cover 2.

[0050] The working principle and the use process of the utility model are as follows:

[0051] The staff selects the appropriate cover 1 according to the shape of the top opening of the fermentation tank 3 and the depth of the inside of the fermentation tank 3 and determines the appropriate number of rotating rods 8, connects the rotating rods 8 end to end and connects the adjacent lifting assemblies 11 with the connecting ropes 12, connects the top of the connected stirring assembly 7 to the rotating head 6, installs the insertion rod 24 on the bottom of the stirring assembly 7, covers the top opening of the fermentation tank 3 with the cover 1 and rotates the fixing bolts 33, then lifts the mounting cover 2, puts the stirring assembly 7 into the fermentation tank 3 along the axis of the fermentation tank 3, puts the insertion rod 24 into the insertion opening 23, rotates the fixing screws 35 after the mounting cover 2 covers the through hole 4, and completes the installation. When the stirring assembly 7 needs to be removed, the uppermost lifting assembly 11 is pulled through the operating opening 25 after the sealing cover 26 is opened, the stirring rod 10 is pulled up and then the lifting assembly 11 is fixed, then the fixing screws 35 are rotated, and finally the mounting cover 2 is lifted to take out the stirring assembly 7 from the fermentation tank 3.

[0052] The above is only a specific application example of the utility model and does not constitute any limitation on the protection scope of the utility model. Any technical scheme formed by equivalent transformation or equivalent replacement falls within the protection scope of the utility model.

Claims

1. A stirring device inside an anaerobic fermenter, characterized in that: The device includes a cap and a mounting cap. The cap is detachably connected to the top opening of the fermentation tank. The shape of the cap matches the shape of the top opening of the fermentation tank. The cap has a through-hole in the middle, and the mounting cap is detachably connected to the through-hole. A motor is located at the top center of the mounting cap, and a rotating head is rotatably connected to the bottom center of the mounting cap. The drive rod of the motor is coaxially connected to the top of the rotating head. A stirring assembly is coaxially connected to the bottom of the rotating head. The stirring assembly consists of several rotating rods connected vertically. Adjacent rotating rods are detachably connected. A crossbar is located at the bottom side of each rotating rod, and the distal end of the crossbar is rotatably connected to the inner end of the stirring rod. A lifting assembly is located on the side of each rotating rod, and the lower end of the lifting assembly is connected to the inner end of the stirring rod. Adjacent lifting assemblies are connected by a connecting rope. The furthest distance between the distal end of the stirring rod and the rotating rod is greater than the radius of the through-hole. When the distal end of the stirring rod is pulled upwards to its highest point, the distance between the distal end of the stirring rod and the rotating rod is less than the radius of the through-hole.

2. The internal stirring device for an anaerobic fermenter according to claim 1, characterized in that: The crossbar has a rotating groove at its far end. The inner end of the stirring rod is placed in the rotating groove and is rotatably connected to the rotating groove. When the stirring rod is not pulled by the lifting assembly and is placed horizontally, the stirring rod abuts against the lower wall of the rotating groove. When the far end of the stirring rod rotates to its highest point, the stirring rod abuts against the upper wall of the rotating groove.

3. The internal stirring device for an anaerobic fermenter according to claim 2, characterized in that: The lower wall of the rotating groove is equipped with a magnet block that can magnetically attract the stirring rod.

4. The internal stirring device for an anaerobic fermenter according to claim 2, characterized in that: The top of the stirring rod is provided with stirring support rods evenly distributed along its length, and the rotating rod is provided with a storage opening corresponding to the stirring support rods.

5. The internal stirring device for an anaerobic fermenter according to claim 1, characterized in that: The lifting assembly includes a limiting groove, a pulling rope A, a pulling rope B, and a rope loop. The side of the rotating rod is provided with a pair of upper and lower opposing limiting grooves. The upper and lower ends of the pulling rope A pass through the corresponding limiting grooves and are each connected to a rope loop. The rope loop located on the lower side is connected to the inner end of the stirring rod via the pulling rope B. The adjacent rope loops of the upper and lower adjacent rotating rods are connected by connecting ropes.

6. The internal stirring device for an anaerobic fermenter according to claim 5, characterized in that: The rotating rod is provided with a guide hole, the inner end of which is close to the stirring rod and the outer end is close to the lower limiting groove. The pulling rope B passes through the guide hole.

7. The internal stirring device for an anaerobic fermenter according to claim 1, characterized in that: The bottom center of the fermenter is rotatably connected to a docking seat, which rotates around an axis. The top center of the docking seat has an insertion port along the axis. The bottom of the rotating rod at the bottom is detachably connected to an insertion rod corresponding to the insertion port. The insertion rod is coaxial with the rotating rod, and the lower end of the insertion rod is inserted into the insertion port. The cross-sectional shape of the insertion port is a regular polygon.

8. The internal stirring device for an anaerobic fermenter according to claim 1, characterized in that: The mounting cover has a pair of symmetrical operating ports, which allow workers to pull the lifting assembly of the uppermost rotating rod. A sealing cover is placed on the operating port, and the mounting cover has a pair of symmetrical handles.

9. The internal stirring device for an anaerobic fermenter according to claim 1, characterized in that: The upper and lower ends of the rotating rod are each provided with a through hole that communicates with the left and right sides. The ends of adjacent rotating rods that are close to each other are fitted with the same connecting sleeve. The connecting sleeve is provided with a screw hole A corresponding to the through hole. The detachable connection between adjacent rotating rods is achieved by screwing a connecting screw into the overlapping screw hole A and the through hole.

10. The internal stirring device for an anaerobic fermenter according to claim 1, characterized in that: The outer edge of the cap and the outer edge of the top opening of the fermentation tank are each provided with corresponding screw holes B. A detachable connection between the cap and the fermentation tank is achieved by screwing in the overlapping screw holes B. The outer edge of the mounting cover and the top outer edge of the opening are each provided with corresponding screw holes C. A detachable connection between the mounting cover and the cap is achieved by screwing in the overlapping screw holes C.

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