Separation and filtration device for dextran
Technical Field
The utility model relates to the technical field of dextran extraction, in particular to a separation and filtration device for dextran.
Background
Dextran is a polysaccharide compound with wide application, and has excellent stability and viscosity reduction performance. In the production process, a separation and filtration device is required to improve the purity and quality of the dextran. However, after the existing separation filter device is used for a period of time, impurities left by filtration can be gradually attached to the inner wall of the filter screen, so that the condition of blockage is generated, the permeability of the filter screen is reduced, and the filtration efficiency is affected.
Disclosure of utility model
Aiming at the defects of the prior art, the utility model provides a separation and filtration device for dextran, which solves the technical problem that the filtration efficiency is affected by blockage after a filter screen is used for a long time.
In order to solve the technical problems, the utility model provides the technical scheme that the separation and filtration device for the dextran comprises a filtration tank, wherein a filtration mechanism for accelerating the separation of the dextran in a centrifugal way is fixedly arranged in the filtration tank, and a flushing mechanism for cleaning residual impurities in the filtration mechanism is also fixedly arranged in the filtration tank;
The flushing mechanism comprises a lifting driving assembly arranged at the top of the inner side of the filter tank, a lifting rod is rotatably connected to the bottom of the lifting driving assembly, an annular pipe is fixedly arranged at the bottom of the lifting rod, a plurality of spray heads distributed at equal intervals are arranged on the outer wall of the annular pipe, the annular pipe is further connected with a water inlet pipe, and the water inlet pipe extends to the outside of the filter tank.
Preferably, the filtering mechanism comprises a fixing frame arranged in the filtering tank, a first motor is arranged at the bottom of the fixing frame, a gear is fixedly arranged on an output shaft of the first motor, the gear is meshed with a gear ring, the gear ring is fixedly arranged at the top of the separation net barrel, and the separation net barrel is rotationally connected to the fixing frame.
Preferably, the bottom of the separation net barrel is rotationally connected with a rotary joint, the bottom of the rotary joint is fixedly connected with an electromagnetic valve, the bottom of the electromagnetic valve is fixedly connected with a cleaning pipe, and the cleaning pipe extends out along the side wall of the discharge hole at the bottom of the filter tank.
Preferably, the lifting driving assembly comprises a second motor arranged at the top of the inner side of the filter tank, a rotating block is fixedly arranged on an output shaft of the second motor and hinged with the connecting block through a connecting rod, and the connecting block is rotationally connected to the top of the lifting rod.
Preferably, two sliding blocks are fixedly arranged on the outer wall of the lifting rod, the two sliding blocks are respectively arranged in two spiral guide grooves formed in the guide sleeve in a sliding mode, the guide sleeve is sleeved on the outer side of the lifting rod and fixedly connected to the fixing plate, and the fixing plate is fixedly connected to the inside of the filtering tank.
Preferably, a feeding pipe is further installed in the filtering tank, and one end of the feeding pipe is located above the separation net barrel.
By means of the technical scheme, the utility model provides a separation and filtration device for dextran, which has at least the following beneficial effects:
1. this a separation filter equipment for dextran utilizes lift drive assembly work and drives annular pipe and shower nozzle elevating movement through the lifter through setting up washing mechanism, simultaneously under slider and guide sleeve's effect, because slider and at the guide way in-process spiral motion to make the lifter also can rotary motion at the in-process of going up and down, thereby can carry out comprehensive washing work to separation net section of thick bamboo inner wall, can avoid influencing filtration efficiency's problem because of separation net section of thick bamboo inner wall jam.
2. This a separation filter equipment for dextran utilizes motor one to work and drives the rotation of separation net section of thick bamboo through the meshing effect of gear and ring gear through setting up filtering mechanism to make the filter liquor can centrifugal filtration, further improve the filtration efficiency of filter liquor.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model, illustrate and together with the description serve to explain a part of the utility model:
FIG. 1 is a schematic perspective view of the whole structure of the present utility model;
FIG. 2 is a schematic view of the structure of the interior of the filter tank of the present utility model;
FIG. 3 is a schematic view of the flushing mechanism of the present utility model;
FIG. 4 is a schematic cross-sectional view of a guide sleeve of the present utility model;
fig. 5 is a schematic structural view of the lifting rod of the present utility model.
Reference numerals:
1. The filter tank, 2, a filter mechanism, 21, a fixing frame, 22, a motor I, 23, a gear, 24, a gear ring, 25, a separation net drum, 3, a rotary joint, 4, an electromagnetic valve, 5, a dirt cleaning pipe, 6, a flushing mechanism, 61, a lifting driving assembly, 611, a motor II, 612, a rotating block, 613, a connecting rod, 614, a connecting block, 62, a lifting rod, 63, a sliding block, 64, a guide sleeve, 641, a guide groove, 65, a fixing plate, 66, an annular pipe, 67, a spray head, 68, a water inlet pipe, 7 and a feeding pipe.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Dextran is a polysaccharide composed of glucose units, has dextrorotation, and is formed by connecting glucose units in a chemical structure through alpha-1, 4-bonds. Dextran has many excellent characteristics such as good water solubility, strong heat resistance, excellent viscosity reduction performance and the like, and has wide application in the fields of food industry, chemical industry and medicine. The separation and filtration are important links in the production process of the dextran, and are mainly based on the following purposes of 1. Improving the purity of the product, namely, the dextran is used as a high molecular compound, and other impurity substances are usually accompanied in the production process, so that the impurity substances can be effectively removed through separation and filtration, and the purity of the product is improved. 2. Free glucose removal during the dextran preparation process, free glucose and other monosaccharide substances may occur, and the monosaccharides may affect the quality of the product and need to be removed by separation and filtration. 3. Concentration and dehydration in the dextran production process, the water in the solution needs to be evaporated or concentrated, and separation and filtration equipment can help to realize the operations. 4. And (3) removing residual fermentation substances and microorganisms, namely, in the process of fermenting and producing the dextran, the residual fermentation substances and microorganisms need to be removed, and separation and filtration can effectively remove the substances.
Embodiment one:
Based on the technical defect that the filtering efficiency is affected by the blockage of the filter screen after the filter screen is used for a long time in the prior art, referring to fig. 1-5, the separation filtering device for dextran provided by the utility model can perform comprehensive flushing on the inner wall of the separation net drum 25, can avoid the problem that the filtering efficiency is affected by the blockage of the inner wall of the separation net drum 25, is characterized in that a filtering mechanism 2 for accelerating the separation of dextran in a centrifugal way is fixedly arranged in a filtering tank 1, a flushing mechanism 6 for cleaning residual impurities in the filtering mechanism 2 is also fixedly arranged in the filtering tank 1, a solution is discharged into the filtering mechanism 2 through a feeding pipe 7, the centrifugal filtering operation is performed on the solution by utilizing the filtering mechanism 2, and after the solution is filtered, the separation net drum 25 in the filtering mechanism 2 is subjected to flushing operation by utilizing the flushing mechanism 6, so that the attached impurities are removed.
In order to clean impurities attached to the inner wall of the separation net drum 25 conveniently, please refer to fig. 3, the flushing mechanism 6 comprises a lifting driving assembly 61 installed at the top of the inner side of the filter tank 1, a lifting rod 62 is rotatably connected to the bottom of the lifting driving assembly 61, an annular pipe 66 is fixedly arranged at the bottom of the lifting rod 62, a plurality of spray heads 67 distributed at equal intervals are installed on the outer wall of the annular pipe 66, the annular pipe 66 is further connected with a water inlet pipe 68, the water inlet pipe 68 extends to the outer side of the filter tank 1, the lifting driving assembly 61 is utilized to work and drive the lifting rod 62 to move, and the lifting rod 62 drives the annular pipe 66 and the spray heads 67 to move, so that the inner wall of the separation net drum 25 is flushed.
In order to make the spray head 67 capable of reciprocating lifting, please refer to fig. 3, the lifting driving assembly 61 comprises a second motor 611 mounted on the top of the inner side of the filter tank 1, a rotating block 612 is fixedly mounted on an output shaft of the second motor 611, the rotating block 612 is hinged with a connecting block 614 through a connecting rod 613, the connecting block 614 is rotatably connected to the top of the lifting rod 62, the second motor 611 is used to drive the rotating block 612 to rotate, and the rotating block 612 drives the lifting rod 62 to reciprocate through the connecting rod 613.
In order to enable the lifting rod 62 to drive the spray head 67 to rotate during lifting movement, two sliding blocks 63 are fixedly arranged on the outer wall of the lifting rod 62, the two sliding blocks 63 are respectively arranged in two spiral guide grooves 641 formed in the guide sleeve 64 in a sliding mode, the guide sleeve 64 is sleeved on the outer side of the lifting rod 62 and fixedly connected to the fixing plate 65, the fixing plate 65 is fixedly connected to the inside of the filter tank 1, when the lifting rod 62 moves in a lifting mode, the sliding blocks 63 can move along the guide grooves 641 in the guide sleeve 64, and the sliding blocks 63 can drive the lifting rod 62 to rotate due to the fact that the guide grooves 641 are spiral, so that the spray head 67 can flush the separation net drum 25 more comprehensively.
In order to facilitate feeding, a feeding pipe 7 is also arranged in the filtering tank 1, one end of the feeding pipe 7 is positioned above the separation net drum 25, and the solution can be put into the separation net drum 25 through the feeding pipe 7 to perform separation filtering.
Embodiment two:
In order to improve the filtering efficiency, referring to fig. 2, in the first embodiment, the filtering mechanism 2 includes a fixing frame 21 installed inside the filtering tank 1, a first motor 22 is installed at the bottom of the fixing frame 21, a gear 23 is fixed on an output shaft of the first motor 22, the gear 23 is meshed with a gear ring 24, the gear ring 24 is fixed on the top of a separation net drum 25, the separation net drum 25 is rotatably connected to the fixing frame 21, and the first motor 22 is used to work and drives the separation net drum 25 to rotate under the meshing action of the gear 23 and the gear ring 24, so that the solution can more quickly pass through the separation net drum 25 to achieve the purpose of more efficient filtering.
In order to conveniently discharge the washed impurities, the bottom of the separation net drum 25 is rotatably connected with a rotary joint 3, the bottom of the rotary joint 3 is fixedly connected with an electromagnetic valve 4, the bottom of the electromagnetic valve 4 is fixedly connected with a cleaning pipe 5, the cleaning pipe 5 extends out along the side wall of a discharge hole at the bottom of the filter tank 1, the separation net drum 25 can normally rotate under the action of the rotary joint 3, and when the impurities are discharged, the electromagnetic valve 4 is opened, and the impurities can be discharged along the cleaning pipe 5 after passing through the rotary joint 3.
As can be seen from the above embodiment, the solution is discharged into the filtering mechanism 2 through the feeding pipe 7, the filtering mechanism 2 is started to operate, the first motor 22 is used to operate and the gear 23 and the gear ring 24 are meshed to drive the separation net drum 25 to rotate, so that the solution can generate centrifugal action in the separation net drum 25, the solution can pass through the separation net drum 25 more quickly, after the solution is filtered, the flushing mechanism 6 is started to operate, the second motor 611 is used to drive the rotating block 612 to rotate, the rotating block 612 drives the lifting rod 62 to reciprocate through the connecting rod 613, the lifting rod 62 drives the annular pipe 66 and the spray head 67 to move, so that the inner wall of the separation net drum 25 is flushed, meanwhile, when the lifting rod 62 moves up and down, the sliding block 63 can move along the guide groove 641 inside the guide sleeve 64, and the sliding block 63 can drive the lifting rod 62 to rotate, so that the spray head 67 can flush the separation net drum 25 more comprehensively, under the action of the rotating joint 3, the separation net drum 25 can rotate normally, and when impurities are discharged, the electromagnetic valve 4 can be opened, and the impurities can be discharged along the cleaning pipe 5 after passing through the rotating joint 3.
It should be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.