CN110755896B - Filter press for extracting barley beta-amylase - Google Patents
Filter press for extracting barley beta-amylase Download PDFInfo
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- CN110755896B CN110755896B CN201911019928.3A CN201911019928A CN110755896B CN 110755896 B CN110755896 B CN 110755896B CN 201911019928 A CN201911019928 A CN 201911019928A CN 110755896 B CN110755896 B CN 110755896B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/12—Filter presses, i.e. of the plate or plate and frame type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/32—Removal of the filter cakes
- B01D25/325—Removal of the filter cakes counter-current flushing, e.g. by air bumps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/32—Removal of the filter cakes
- B01D25/38—Removal of the filter cakes by moving parts, e.g. scrapers, contacting stationary filter elements sprayers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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Abstract
The invention belongs to the technical field of filter pressing equipment, in particular to a filter press for extracting barley beta-amylase, which comprises two girders, wherein one end of each girder is fixedly provided with a hydraulic cylinder, the output shaft end of each hydraulic cylinder is fixedly provided with a pressing plate, the hydraulic cylinders are used for driving the pressing plates to move, the other ends of the girders far away from the hydraulic cylinders are fixedly provided with baffle plates, more than two filter frames are movably arranged between the two girders, and the pressing plates and the top ends of the baffle plates are respectively provided with a water pipe; according to the invention, the filter residues are extruded by the extrusion air bags, so that the water in the filter residues is fully extruded, the utilization rate of raw material slurry is increased, the filter pressing efficiency of the filter pressing device is improved, the arranged connecting rods rotate under the extrusion of the extrusion air bags, and when the extrusion air bags deflate, the filter cakes are easily separated from the filter frame due to vibration caused by the reset of the connecting rods, so that the filter pressing efficiency of the filter pressing device is improved.
Description
Technical Field
The invention belongs to the technical field of filter pressing equipment, and particularly relates to a filter press for extracting barley beta-amylase.
Background
Beta-amylase (beta-amylase), also known as starch beta-1, 4-maltogenic glycosidase, is one of the amylases, and is widely found in higher plants such as barley, wheat, sweet potato, soybean, and microorganisms such as bacillus. Is the main saccharifying agent for beer brewing and malt syrup production. High maltose syrups with maltose content of 60% -70% can be produced by saccharifying starch material after acidification or alpha-amylase liquefaction with beta-amylase produced by microorganisms such as bacillus polymyxa, bacillus megaterium, etc.
When the barley beta-amylase is used for obtaining concentrated enzyme liquid, a filter pressing step is needed, but the traditional step is complicated, time and labor are consumed, and the filter cake in the filter pressing process contains moisture, so that the loss of filter pressing solution is caused, in addition, the filter cake is not easy to separate from a filter pressing device, so that the filter pressing efficiency of the enzyme liquid is low, and the extraction of the barley beta-amylase is influenced;
meanwhile, after the filter press is used, the filter press is difficult to clean due to the characteristics of the filter cake, so that when the filter press is used again, the residual impurities influence the normal use of the filter press and the service life of the filter press, and therefore, the invention provides the filter press for extracting the barley beta-amylase.
Disclosure of Invention
In order to make up for the defects of the prior art, the filter press for extracting the barley beta-amylase provided by the invention washes the used filter press through the cooperation of the extrusion air bag and the cleaning unit, improves the flushing effect of the filter press, and prolongs the whole service life of the filter press.
The technical scheme adopted for solving the technical problems is as follows: the invention relates to a filter press for extracting barley beta-amylase, which comprises two girders, wherein one end of each girder is fixedly provided with a hydraulic cylinder, the output shaft end of each hydraulic cylinder is fixedly provided with a pressing plate, each hydraulic cylinder is used for driving the corresponding pressing plate to move, the other end of each girder far away from each hydraulic cylinder is fixedly provided with a baffle, more than two filter frames are movably arranged between the two girders, the top ends of each pressing plate and each baffle are respectively provided with a water pipe, the water pipes respectively penetrate through the pressing plates and the inside of each baffle and are communicated with the inner cavity of each filter frame, each filter frame is fixedly provided with a rectangular frame along the side wall of the girder in the length direction, each rectangular frame is internally fixedly provided with an extrusion air bag, four corners of each extrusion air bag are respectively fixed on the inner side wall of each rectangular frame through steel wires, each extrusion air bag is connected with an air pump through a connecting pipe, each extrusion air bag is used for extruding filter residues, one side of each filter frame far away from each baffle is fixedly provided with an ultrafiltration membrane, each ultrafiltration membrane is used for filtering enzyme liquid, and the bottom of each girder is provided with a controller and a hydraulic station for controlling the filter press device to work;
a cleaning unit is arranged in the rectangular frame and is used for cleaning the filter frame; wherein the filter frame is internally provided with a water filtering cavity in a hollow manner; the cleaning unit comprises a water inlet pipe, a water spray head and a convex block; the water inlet pipe is fixedly connected to the side wall of the rectangular frame and communicated with the water passing cavity; a group of water spraying heads are arranged on the inner side wall of the rectangular frame at equal intervals; the water spraying head is communicated with the inside of the water passing cavity; the inside position department that corresponds the sprinkler bead that crosses of water chamber has all linked firmly the lug.
When the method is used, beta-amylase, also called starch beta-, -maltogenic glycosidase, is one of amylases, widely exists in higher plants such as barley, wheat, sweet potato, soybean and the like and microorganisms such as bacillus, is a main saccharifying agent for brewing beer and preparing malt syrup, when concentrated enzyme liquid is obtained, the barley beta-amylase needs to be used in a filter pressing step, the traditional step needs to be filtered and cleaned and then ultrafiltered, the filtration is complicated and time-consuming, meanwhile, a filter cake in the filter pressing process is not easy to separate from a filter pressing device, the filter pressing efficiency is low, more residual raw material slurry in the filter cake is easy to cause waste, the extraction efficiency of the barley beta-amylase is directly influenced, and through the arrangement of a filter frame, when ultrafiltration operation is carried out, a controller controls a hydraulic station to work, the hydraulic station controls a hydraulic cylinder to drive a pressing plate to move, so that the filter frame is pressed on a baffle plate, an inner cavity of the filter frame forms a filter cavity, then raw material slurry is introduced into a water pipe on the pressing plate, the raw material slurry enters into the cavity of the filter frame from the water pipe, the raw material slurry passes through the ultrafilter membrane and is concentrated solution and is discharged from the ultrafilter membrane, the concentrated enzyme is not needed to be cleaned, and the working time is saved, and the process is saved; in the process of classifying ultrafiltration concentration of an ultrafiltration membrane, solute in raw material slurry is trapped in a filter frame to form a filter cake, on one hand, the filter cake is in a loose state, raw material slurry is reserved in the filter cake, waste of the raw material slurry is easily caused, on the other hand, the compactness of the filter cake directly influences the continuous filter pressing capacity of a filter pressing device, through the arrangement of an extrusion air bag, the extrusion air bag extrudes the filter cake in the process of inflating the extrusion air bag, gaps are reserved between the extrusion air bag and the rectangular frame, the raw material slurry cannot be prevented from passing through, on the one hand, when the extrusion air bag extrudes the filter cake, the raw material slurry reserved in the filter cake is extruded, and enters the next filter frame along with the movement of the raw material slurry, so that the utilization rate of the raw material slurry is increased, the waste of the raw material slurry is avoided, on the other hand, after the extrusion air bag extrudes the filter cake, the filter cake is more compact, a cavity is formed between the extrusion air bag and the filter cake in the process of repeatedly inflating and deflating, the filter pressing device continuously carries out filter pressing work, and the filter pressing quantity of the filter pressing device is improved, and the filter pressing efficiency of the filter pressing device is directly improved;
after the filter press is used, the filter press is difficult to clean due to the characteristics of filter cakes, so that when the filter press is used again, the residual impurities influence the normal use of the filter press and the service life of the filter press, therefore, the filter press is washed by the cooperation of the extrusion air bags and the cleaning unit, specifically, the filter cakes of the filter frames are emptied in sequence, then the filter frames are folded again, then water is injected into the water inlet pipes on the rectangular frames by the high-pressure pump, so that water flows in the water cavity, and then is ejected from the communicated water spray heads forcibly, and the filter frames and the ultrafiltration membranes at the adjacent positions on two sides are washed.
Preferably, a folding air bag is arranged between the adjacent filter frames, two ends of the folding air bag are respectively fixed on the side walls of the adjacent filter frames, the folding air bag is communicated with the extrusion air bag through an air pipe, an electromagnetic valve is arranged in the middle of the air pipe, the folding air bag is used for supplementing air of the extrusion air bag, when the extrusion air bag works, the air bag needs to be inflated, when the extrusion air bag is inflated, the compression air bag needs to be inflated, the requirement on the air pump is high, the folding air bag is arranged, when the filter frames are compressed, the folding air bag is compressed, the air pressure in the folding air bag is increased, when the extrusion air bag extrudes filter cakes, the electromagnetic valve is opened by the controller, so that air in the folding air bag enters the extrusion air bag, the expansion degree of the extrusion air bag is increased, the extrusion effect of the extrusion air bag is improved, the compression degree of the filter cakes is improved, and when the filter frames are mutually far away, the folding air bag is sucked and stored, and the folding air bag can continuously work.
Preferably, the four corners of filter frame inside wall all are fixed with the installation piece, the installation piece lateral wall is equipped with the arc wall, swing joint has the connecting rod between the installation piece of diagonal angle, the middle part of connecting rod passes through the bolt rotation to be connected, the both ends of connecting rod are located the arc wall, the symmetry is fixed with two elastic ropes between the connecting rod, during operation, the filter cake is located between the adjacent milipore filter, be difficult to break away from with the filter frame when the clearance, thereby influence filter press device's continuous work efficiency, the setting of connecting rod, when the extrusion gasbag extrusion connecting rod, make the connecting rod produce and rotate, the both ends of connecting rod slide in the arc wall, simultaneously, the rotation of connecting rod makes the elastic rope by tightening, when the extrusion gasbag reduces, the effort of extrusion gasbag to the connecting rod reduces, the connecting rod produces the rotation that resets under the shrink of elastic rope this moment, thereby make the filter cake by the extrusion produce deformation, thereby make the filter cake break and drop down from the filter frame, filter press filter press device's the clearance degree of difficulty has been reduced, filter press device's efficiency has been improved.
Preferably, the molecular weight of the ultrafiltration membrane is reduced along with the increase of the distance between the ultrafiltration membrane and the pressing plate, the ultrafiltration membrane is used for classifying concentration filtration, the ultrafiltration membrane close to one end of the pressing plate has large molecular weight during operation, more solute passes through the ultrafiltration membrane, the ultrafiltration membrane far away from one end of the pressing plate has small molecular weight, the solute passes through the ultrafiltration membrane is reduced, the ultrafiltration membrane realizes classifying filtration, on one hand, the filtration efficiency of raw material slurry is ensured, the desired concentrated enzyme solution is obtained, on the other hand, the solute in the raw material slurry gradually reduces through the ultrafiltration membrane, the filtration burden of the ultrafiltration membrane is reduced, the service life of the ultrafiltration membrane is prolonged, and the filter pressing balance inside the filter pressing device is ensured.
Preferably, the protruding block is arranged in an arc shape, and an elastic air bag is fixedly connected to the arc-shaped part. During operation, when rivers flow in the water chamber, when spouting from the sprinkler bead in succession, owing to install the elasticity gasbag in this department, elasticity gasbag can take place elasticity flexible under the impact force of rivers to change the diameter of this department rivers, and then produce the effect of local pressure boost, make the impact force of sprinkler bead spun rivers stronger, thereby have better washing effect, further prolonged the life of pressure filter.
The beneficial effects of the invention are as follows:
1. according to the invention, the ultrafiltration membranes with gradually reduced pore diameters are arranged, so that the filter pressing device carries out graded concentration on the filter pressing slurry, the stress of each ultrafiltration membrane is uniform, the service life of the ultrafiltration membrane is prolonged, the retained solute in the raw material slurry is uniformly distributed in the filter frame, the phenomenon that the solute is jammed at the ultrafiltration membrane at one end of the pressing plate is avoided, and the filter pressing efficiency is improved; the press filter after being used is washed by the cooperation of the extrusion air bag and the cleaning unit, so that the washing effect of the press filter is improved, and the whole service life of the press filter is prolonged.
2. The invention utilizes the elastic expansion and contraction of the elastic air bag under the impact force of the water flow, thereby changing the diameter of the water flow at the position corresponding to the water spray head, further generating the effect of local pressurization, leading the impact force of the water flow sprayed out from the water spray head to be stronger, thereby having better flushing effect and further prolonging the service life of the filter press.
3. According to the invention, the water in the filter cake is fully extruded by extrusion of the extrusion air bag, so that the waste of raw material slurry is reduced, and the extraction efficiency of enzyme liquid is improved.
4. According to the invention, through the arrangement of the connecting rod, the connecting rod extrudes the filter cake in the rotating process, so that the filter cake is quickly crushed and falls from the filter frame, the separation efficiency of the filter cake and the filter frame is improved, and the filter pressing efficiency of the filter pressing device is directly improved.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a three-dimensional view of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a schematic view of the structure of the filter frame and rectangular frame of the present invention;
FIG. 4 is a three-dimensional view of a filter frame;
FIG. 5 is a right side partial cross-sectional view of the filter frame;
FIG. 6 is a three-dimensional view of a rectangular box;
FIG. 7 is a partial enlarged view at B in FIG. 6;
in the figure: girder 1, pneumatic cylinder 2, clamp plate 3, baffle 4, filter frame 5, water cavity 51, water pipe 6, rectangle frame 7, wire rope 71, extrusion gasbag 8, milipore filter 9, folding gasbag 10, installation piece 11, connecting rod 12, arc groove 13, elastic cord 14, wash unit 15, inlet tube 16, sprinkler head 17, lug 18, elastic gasbag 19.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1 to 7, the filter press for extracting barley beta-amylase comprises two girders 1, wherein one end of each girder 1 is fixedly provided with a hydraulic cylinder 2, the output shaft end of each hydraulic cylinder 2 is fixedly provided with a pressing plate 3, each hydraulic cylinder 2 is used for driving the corresponding pressing plate 3 to move, the other end of each girder 1 far away from each hydraulic cylinder 2 is fixedly provided with a baffle 4, more than two filter frames 5 are movably arranged between the two girders 1, water pipes 6 are respectively arranged at the top ends of the pressing plates 3 and the baffle 4, the water pipes 6 respectively penetrate through the pressing plates 3 and the baffle 4 and are communicated with the inner cavities of the filter frames 5, the side walls of the filter frames 5 in the length direction of the girders 1 are fixedly provided with rectangular frames 7, each rectangular frame 7 is internally fixedly provided with an extrusion air bag 8, each extrusion air bag 8 is connected with an air pump through a connecting pipe, each extrusion air bag 8 is used for extruding filter residues, one side of each filter frame 5 far away from the baffle 4 is fixedly provided with an ultrafiltration membrane 9, each filter frame 9 is used for controlling the bottom of each filter frame 1 to be used for controlling a hydraulic station, and each hydraulic station is used for controlling the hydraulic station 2;
a cleaning unit 15 is arranged in the rectangular frame 7, and the cleaning unit 15 is used for cleaning the filter frame 5; wherein, the filter frame 5 is internally provided with a water passing cavity 51 in a hollow manner; the cleaning unit 15 comprises a water inlet pipe 16, a water spray head 17 and a convex block 18; the water inlet pipe 16 is fixedly connected to the side wall of the rectangular frame 7, and the water inlet pipe 16 is communicated with the water passing cavity 51; a group of water spraying heads 17 are arranged on the inner side wall of the rectangular frame 7 at equal intervals; the water spraying head 17 is communicated with the inside of the water passing cavity 51; the inside of the water passing cavity 51 is fixedly connected with a lug 18 at the position corresponding to the water spraying head 17.
When the method is used, beta-amylase, also called starch beta-1, 4-maltogenic glycosidase, is one of amylase, widely exists in higher plants such as barley, wheat, sweet potato, soybean and the like and microorganisms such as bacillus, is a main saccharifying agent for brewing beer and preparing maltose syrup, when concentrated enzyme liquid is obtained, the barley beta-amylase needs to be subjected to a filter pressing step, the traditional step needs to be filtered and cleaned and then ultrafiltration, is complicated and time-consuming, meanwhile, a filter cake in the filter pressing process is not easy to separate from a filter pressing device, the filter pressing efficiency is low, more residual raw material slurry in the filter cake is easy to cause waste, the extraction efficiency of the barley beta-amylase is directly influenced, through the arrangement of a filter frame 5, when ultrafiltration operation is carried out, a controller controls a hydraulic station to work, and the hydraulic station controls the hydraulic cylinder 2 to drive the press plate 3 to move, so that the filter frame 5 is pressed on the baffle plate 4, an inner cavity of the filter frame 5 forms a filter cavity, raw material slurry is then introduced into a water pipe 6 on the press plate 3, the raw material slurry enters the water pipe 6 from the filter frame 5 to the filter cavity through the filter frame 5, the ultrafiltration step is not needed to be subjected to ultrafiltration step, the concentrated enzyme is not needed to be discharged from the filter pipe 6, and the concentrated enzyme is required to be subjected to be cleaned, and concentrated, and the step is not needed to be subjected to concentrated to cleaning and concentrated; in the process of classifying ultrafiltration concentration of the ultrafiltration membrane 9, solute in raw material slurry is trapped in the filter frame 5 to form a filter cake, on one hand, the filter cake is in a loose state, raw material slurry is reserved in the filter cake, waste of raw material slurry is easily caused, on the other hand, the compaction degree of the filter cake directly influences the continuous filter pressing capacity of a filter pressing device, through the arrangement of the extrusion air bags 8, in the process of inflating the extrusion air bags 8, the extrusion air bags 8 extrude the filter cake, gaps are reserved between the extrusion air bags 8 and the rectangular frame 7, the raw material slurry cannot be prevented from being hindered from passing through, on the one hand, when the extrusion air bags 8 extrude the filter cake, the raw material slurry reserved in the filter cake is extruded, and enters the next filter frame 5 along with the movement of the raw material slurry, so that the utilization rate of the raw material slurry is increased, the waste of the raw material slurry is avoided, on the other hand, after the extrusion air bags 8 extrude the filter cake, the filter cake is more compact, in the process of repeatedly inflating and deflating the extrusion air bags 8, the raw material slurry enters the cavity, the filter frame 5 continues the filter pressing operation, the filter pressing device, the quantity of the filter pressing device is improved, and the filter pressing efficiency of the filter pressing device is directly improved;
after the filter press is used, the filter press is difficult to clean due to the characteristics of filter cakes, so that when the filter press is used again, the normal use of the filter press and the service life of the filter press are influenced by residual impurities, and therefore, the filter press is flushed through the cooperation of the extrusion air bags 8 and the cleaning units 15, specifically, the filter cakes of the filter frames 5 are sequentially emptied, then the filter frames 5 are folded again, then the water is injected into the water inlet pipe 16 on the rectangular frame 7 by the high-pressure pump, so that water flows in the water cavity 51 and then is forcibly sprayed out from the communicated water spray heads 17, and the filter frames 5 and the ultrafiltration membranes 9 at two adjacent sides are flushed.
As a specific implementation mode of the invention, a folding air bag 10 is arranged between the adjacent filter frames 5, two ends of the folding air bag 10 are respectively fixed on the side walls of the adjacent filter frames 5, the folding air bag 10 is communicated with the extrusion air bag 8 through an air pipe, an electromagnetic valve is arranged in the middle of the air pipe, the folding air bag 10 is used for supplementing air of the extrusion air bag 8, when the extrusion air bag 8 works, the air bag 8 needs to be inflated, the inside of the extrusion air bag 8 needs to be inflated, the requirement on an air pump is high, the folding air bag 10 is arranged, when the filter frames 5 are compressed, the folding air bag 10 is compressed, so that the air pressure in the folding air bag 10 is increased, when the extrusion air bag 8 extrudes filter cakes, the electromagnetic valve is opened by a controller, so that the air in the folding air bag 10 enters the extrusion air bag 8, the expansion degree of the extrusion air bag 8 is increased, the extrusion effect of the extrusion air bag 8 is improved, the compression effect of the filter cakes is further improved, and when the filter frames 5 are far away from each other, the folding air bag 10 is sucked into the air and stored, and the folding air bag 10 can continuously work.
As a specific implementation mode of the invention, the four corners of the inner side wall of the filter frame 5 are respectively fixed with a mounting block 11, the side walls of the mounting blocks 11 are provided with an arc groove 12, connecting rods 13 are movably connected between the diagonal mounting blocks 11, the middle parts of the connecting rods 13 are rotationally connected through bolts, two ends of the connecting rods 13 are positioned in the arc grooves 12, two elastic ropes 14 are symmetrically fixed between the connecting rods 13, during operation, filter cakes are positioned between the adjacent ultrafiltration membranes 9, and are not easy to separate from the filter frame 5 during cleaning, so that the continuous working efficiency of the filter pressing device is affected, the connecting rods 13 are arranged, when the extrusion air bags 8 are expanded, the extrusion air bags 8 extrude the connecting rods 13, so that the connecting rods 13 rotate, the two ends of the connecting rods 13 slide in the arc grooves 12, meanwhile, the rotating of the connecting rods 13 ensure that the elastic ropes 14 are tightened, and when the extrusion air bags 8 shrink, the connecting rods 13 generate reset rotation under the shrinkage of the elastic ropes 14, so that filter cakes are extruded and deform, and are broken and drop from the filter frames 5, so that the filter cakes are cleaned, and the filter pressing efficiency of the filter pressing device is improved.
As a specific embodiment of the invention, the molecular weight of the ultrafiltration membrane 9 becomes smaller along with the increase of the distance between the ultrafiltration membrane 9 and the pressing plate 3, the ultrafiltration membrane 9 is used for graded concentration filtration, when the ultrafiltration membrane 9 works, the molecular weight of the ultrafiltration membrane 9 close to one end of the pressing plate 3 is large, the solute passing through the ultrafiltration membrane 9 is more, the molecular weight of the ultrafiltration membrane 9 far away from one end of the pressing plate 3 is small, the solute passing through the ultrafiltration membrane 9 is reduced, so that the ultrafiltration membrane 9 realizes graded filtration, on one hand, the filtration efficiency of raw material slurry is ensured, the desired concentrated enzyme solution is obtained, on the other hand, the amount of the solute in the raw material slurry passing through the ultrafiltration membrane 9 is gradually reduced, the filtration burden of the ultrafiltration membrane 9 is reduced, the service life of the ultrafiltration membrane 9 is prolonged, and the filter pressing balance inside the filter pressing device is ensured.
As a specific embodiment of the present invention, the bump 18 is configured as an arc, and an elastic air bag 19 is fixedly connected to the arc. When the working, when the rivers flow in the water cavity 51, then from the sprinkler bead 17 when spouting, owing to install the elasticity gasbag 19 in this place, elasticity gasbag 19 can take place to stretch out and draw back under the impact force of rivers to change the diameter of this department rivers, and then produce the effect of local pressure boost, make the impact force of the rivers of spouting from sprinkler bead 17 stronger, thereby have better washing effect, further prolonged the life of pressure filter.
When the method is used, beta-amylase, also called starch beta-1, 4-maltogenic glycosidase, is one of amylase, widely exists in higher plants such as barley, wheat, sweet potato, soybean and the like and microorganisms such as bacillus, is a main saccharifying agent for brewing beer and preparing maltose syrup, when concentrated enzyme liquid is obtained, the barley beta-amylase needs to be subjected to a filter pressing step, the traditional step needs to be filtered and cleaned and then ultrafiltration, is complicated and time-consuming, meanwhile, a filter cake in the filter pressing process is not easy to separate from a filter pressing device, the filter pressing efficiency is low, more residual raw material slurry in the filter cake is easy to cause waste, the extraction efficiency of the barley beta-amylase is directly influenced, through the arrangement of a filter frame 5, when ultrafiltration operation is carried out, a controller controls a hydraulic station to work, and the hydraulic station controls the hydraulic cylinder 2 to drive the press plate 3 to move, so that the filter frame 5 is pressed on the baffle plate 4, an inner cavity of the filter frame 5 forms a filter cavity, raw material slurry is then introduced into a water pipe 6 on the press plate 3, the raw material slurry enters the water pipe 6 from the filter frame 5 to the filter cavity through the filter frame 5, the ultrafiltration step is not needed to be subjected to ultrafiltration step, the concentrated enzyme is not needed to be discharged from the filter pipe 6, and the concentrated enzyme is required to be subjected to be cleaned, and concentrated, and the step is not needed to be subjected to concentrated to cleaning and concentrated; in the process of classifying ultrafiltration concentration of the ultrafiltration membrane 9, solute in raw material slurry is trapped in the filter frame 5 to form a filter cake, on one hand, the filter cake is in a loose state, raw material slurry is reserved in the filter cake, waste of raw material slurry is easily caused, on the other hand, the compaction degree of the filter cake directly influences the continuous filter pressing capacity of a filter pressing device, through the arrangement of the extrusion air bag 8, the extrusion air bag 8 extrudes the filter cake in the process of inflating the extrusion air bag 8, on the other hand, when the extrusion air bag 8 extrudes the filter cake, the raw material slurry reserved in the filter cake is extruded, and enters the next filter frame 5 along with the movement of the raw material slurry, so that the utilization rate of the raw material slurry is increased, the waste of the raw material slurry is avoided, on the other hand, after the extrusion air bag 8 extrudes the filter cake, a cavity is formed between the extrusion air bag 8 and the filter cake, the raw material slurry enters the cavity, the filter pressing device continuously works, the filter pressing quantity of the filter pressing device is improved, and the filter pressing efficiency of the filter pressing device is directly improved;
after the filter press is used, the filter press is difficult to clean due to the characteristics of filter cakes, so that when the filter press is used again, the normal use of the filter press and the service life of the filter press are influenced by residual impurities, and therefore, the filter press is flushed through the cooperation of the extrusion air bags 8 and the cleaning units 15, specifically, the filter cakes of the filter frames 5 are sequentially emptied, then the filter frames 5 are folded again, then the water is injected into the water inlet pipe 16 on the rectangular frame 7 by the high-pressure pump, so that water flows in the water cavity 51 and then is forcibly sprayed out from the communicated water spray heads 17, and the filter frames 5 and the ultrafiltration membranes 9 at two adjacent sides are flushed.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (1)
1. A filter press for extracting barley beta-amylase, which is characterized in that: the filter press comprises two girders (1), one end of each girder (1) is fixedly provided with a hydraulic cylinder (2), the output shaft end of each hydraulic cylinder (2) is fixedly provided with a pressing plate (3), each hydraulic cylinder (2) is used for driving each pressing plate (3) to move, the other end of each girder (1) far away from each hydraulic cylinder (2) is fixedly provided with a baffle (4), more than two filter frames (5) are movably arranged between each girder (1), the pressing plates (3) and the top ends of each baffle (4) are respectively provided with a water pipe (6), each water pipe (6) respectively penetrates through the pressing plates (3) and the inside of each baffle (4) and is communicated with the inner cavity of each filter frame (5), each filter frame (5) is fixedly provided with a rectangular frame (7) along the side wall of the length direction of each girder (1), each rectangular frame (7) is internally fixedly provided with an extrusion air bag (8), each extrusion air bag (8) is fixedly arranged on the inner side wall of each rectangular frame (7) through a steel wire rope, each extrusion air bag (8) is connected with an air pump, each extrusion air bag (8) is used for extruding each frame (4) to be used for extruding a membrane (5) and is far away from a filter cake (9), the hydraulic station is used for controlling the hydraulic cylinder (2) to work;
a cleaning unit (15) is arranged in the rectangular frame (7), and the cleaning unit (15) is used for cleaning the filter frame (5); wherein, the filter frame (5) is internally provided with a water passing cavity (51) in a hollow way; the cleaning unit (15) comprises a water inlet pipe (16), a water spraying head (17) and a lug (18); the water inlet pipe (16) is fixedly connected to the side wall of the rectangular frame (7), and the water inlet pipe (16) is communicated with the water passing cavity (51); a group of water spraying heads (17) are arranged on the inner side wall of the rectangular frame (7) at equal intervals; the water spraying head (17) is communicated with the inside of the water passing cavity (51); the positions, corresponding to the water spraying heads (17), inside the water passing cavity (51) are fixedly connected with protruding blocks (18);
the water spray head (17) is matched with the inflation and the air suction of the extrusion air bag (8) to enable the extrusion air bag (8) to intermittently expand and contract, change the direction of the sprayed water flow and enable the water flow to be washed out in disorder;
a folding air bag (10) is arranged between the adjacent filter frames (5), two ends of the folding air bag (10) are respectively fixed on the side walls of the adjacent filter frames (5), the folding air bag (10) is communicated with the extrusion air bag (8) through an air pipe, an electromagnetic valve is arranged in the middle of the air pipe, and the folding air bag (10) is used for supplementing air of the extrusion air bag (8);
the four corners of the inner side wall of the filter frame (5) are respectively fixed with a mounting block (11), the side walls of the mounting blocks (11) are provided with arc grooves (12), connecting rods (13) are movably connected between the diagonal mounting blocks (11), the middle parts of the connecting rods (13) are rotationally connected through bolts, two ends of the connecting rods (13) are positioned in the arc grooves (12), and two elastic ropes (14) are symmetrically fixed between the connecting rods (13);
the molecular weight of the ultrafiltration membrane (9) becomes smaller as the distance between the ultrafiltration membrane (9) and the pressing plate (3) becomes larger, and the ultrafiltration membrane (9) is used for fractional concentration filtration;
the convex blocks (18) are arranged in an arc shape, and an elastic air bag (19) is fixedly connected to the arc-shaped part.
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112755598B (en) * | 2020-12-30 | 2022-05-24 | 武汉飞博乐环保工程有限公司 | Dirty sour resourceful treatment system filter pressing device |
| CN113577856B (en) * | 2021-08-18 | 2022-05-17 | 如东深水环境科技有限公司 | Intelligent high-pressure diaphragm filter press |
| CN113893588B (en) * | 2021-10-12 | 2023-04-14 | 华能嘉祥发电有限公司 | Plate-and-frame filter press with cleaning effect |
| CN116672766B (en) * | 2023-08-04 | 2023-09-26 | 山西炬华新材料科技有限公司 | Alumina preparation filter pressing process and filter pressing device thereof |
| CN117085379B (en) * | 2023-10-19 | 2024-03-08 | 汕头市黄方生物科技有限公司 | Horizontal stacking filter pressing extraction equipment and application thereof in radix puerariae planting extraction production |
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