CN211129633U - Pretreatment system before sugarcane juice film-coating - Google Patents
Pretreatment system before sugarcane juice film-coating Download PDFInfo
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- CN211129633U CN211129633U CN201922064083.1U CN201922064083U CN211129633U CN 211129633 U CN211129633 U CN 211129633U CN 201922064083 U CN201922064083 U CN 201922064083U CN 211129633 U CN211129633 U CN 211129633U
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Images
Abstract
The utility model provides a pretreatment systems before membrane is crossed to cane juice, this system is including the cane juice that connects gradually draw and tentatively remove miscellaneous system, cane juice heating is antibacterial and get rid of and float miscellaneous system, cane juice remove the heating and the edulcoration system before the membrane of fine powder system, cane juice. The utility model discloses a mode of pure physics comes to implement preliminary edulcoration in proper order to the sugarcane initial-pressure juice that draws from first order squeezer below sugarcane juice groove in sugar refinery, the heating is antibacterial, get rid of and float miscellaneous, remove the fine powder, cross multistage preliminary treatment such as heating and edulcoration before the membrane, thereby can get rid of impurity and bacterium in the sugarcane juice before the membrane is crossed to the sugarcane juice, when guaranteeing sugarcane juice quality and taste, make the tertiary membrane filtration system of pure sugarcane plant cell water beverage production line back level can last normal operating, can not reduce membrane flux by a wide margin, make membrane equipment frequently take place to block up. The utility model discloses can also make octacosanol in the sugarcane can fully separate to the sugarcane juice in to make follow-up product can completely remain the valuable nutrient component in the sugarcane.
Description
Technical Field
The invention relates to the technical field of deep processing of sugarcane juice, in particular to a pretreatment system before membrane crossing of sugarcane juice on a pure sugarcane plant cell water beverage production line.
Background
Sugarcane is a common fruit and is also the most important raw material for sugar production, as the growth period is as long as 12 months, the nutrition value is very high, besides rich sugar and moisture, the sugarcane also contains the octacosanol which is very beneficial to the metabolism of human bodies, amino acid, polyphenol, vitamin B6 and other nutrients, and selenium, zinc, calcium, iron and other beneficial trace elements, wherein the octacosanol is a universally recognized anti-fatigue functional substance, has the effects of improving endurance, energy, sensitivity and stress capability, improving cardiac muscle function, improving the rate of the metabolism of the human bodies, reducing blood fat, enhancing sexual function and the like, and can be used for treating the early-stage Parkinson's disease of the old. Octacosanol is very beneficial to human bodies, scientists find that sugarcane is the fruit most rich in octacosanol, octacosanol mainly exists in sugarcane wax attached to sugarcane peels, and when people eat sugarcane or drink sugarcane juice squeezed by a conventional juicer in daily life, the sugarcane peels cannot be sufficiently torn off or directly discarded, so that the octacosanol which is precious in sugarcane cannot be eaten.
At present, sugarcane produced in China is mainly used for making sugar, and the sugar making process mainly comprises a plurality of processes of squeezing and extracting juice, cleaning sugarcane juice, evaporating sugarcane juice, boiling sugar, drying and the like. The sugarcane juice squeezed by the first-stage squeezer is called sugarcane primary juice, is completely fresh sugarcane juice, does not contain any additional substances including water, so that various nutrient components in the sugarcane, which are beneficial to a human body, are completely reserved in the sugarcane primary juice, more importantly, the sugarcane peel is sufficiently torn into flocculent through tearing and squeezing by large-scale equipment, and the precious octacosanol in the sugarcane peel can be separated out into the sugarcane primary juice together with cane wax.
The production line that we designed adopts tertiary membrane filtration system to separate the filtration to sugarcane juice, because contain a large amount of impurity in the sugarcane primary juice, very easily breed the bacterium, so before the sugarcane juice crosses the membrane, need get rid of more than 98% impurity in the primary juice through pretreatment systems, restrain bacterial growth simultaneously, could get into tertiary membrane filtration system and separate the filtration. If the pretreatment before the sugarcane juice passes through the membrane is improper, the sugarcane juice not only can easily generate peculiar smell which cannot be eliminated, but also can not extract precious octacosanol, and meanwhile, membrane equipment can be frequently blocked and cannot normally operate at all, so that the pretreatment system before the sugarcane juice passes through the membrane is very important in the whole production line.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a pretreatment systems before membrane is crossed to cane juice, this system is as the foremost stage of pure sugarcane plant cell water beverage production line for get rid of the impurity and restrain the bacterial growth in the sugarcane initial-pressure juice that follow sugar refinery draws step by step with pure physical mode, guarantee that the tertiary membrane filtration system of back level can normal operating when guaranteeing that the cane juice is fresh, and make octacosanol in the sugarcane can the intensive segregation to the cane juice in, with the complete valuable nutrient composition who remains in the sugarcane.
The utility model discloses a concrete technical scheme does:
the utility model provides a pretreatment systems before membrane is crossed to cane juice, its includes cane juice that connects gradually and draws and tentatively edulcoration system, cane juice heating is antibacterial and get rid of and floats miscellaneous system, cane juice removes fine powder system, cane juice and crosses heating and edulcoration system before the membrane.
Cane juice draws and preliminary edulcoration system is including getting the juice pump, the filter sieve device, the juice case of just pressing, the juice pump of just pressing, the cane juice groove of the entry of getting the juice pump passing through the first-order squeezer below of tube coupling sugar refinery, the export of getting the juice pump passes through the screen cloth top of tube coupling to the filter sieve device, the cane juice entry of tube coupling juice case is passed through in the filtrate export of filter sieve device rear end, the cane juice export of juice case of just pressing passes through the entry of tube coupling juice pump of just pressing, the export tube coupling of juice pump of just pressing is to the cane juice heating antibacterial and get rid of and float miscellaneous system.
The cane juice heating, bacteriostasis and impurity removing system comprises a primary heater, a settler, a residual juice barrel and an impurity removing and juice cleaning pump; the primary heater is equipped with multistage shell and tube heat exchanger, the heat exchangers at different levels are established ties in proper order through the connecting tube, the entry linkage cane juice of front end heat exchanger draws and the outlet pipe way of the primary press juice pump of preliminary edulcoration system, the export of terminal heat exchanger passes through the raw materials entry of tube coupling settler, the dross overflow mouth in the settler upper portion circumference outside passes through the entry of tube coupling to incomplete juice bucket, the row bottom valve of settler bottom also passes through the entry of tube coupling to incomplete juice bucket, the clear juice export of settler lower part one side passes through the entry of the clear juice pump of tube coupling edulcoration, the outlet pipe way of the clear juice pump of edulcoration is connected to cane juice and is removed the fine powder.
The cane juice fine powder removing system comprises a fine powder removing device, a fine powder removing clear juice box and a fine powder removing clear juice pump; remove the fine powder device and be equipped with a plurality ofly, the outlet pipeline of the clear juice pump of edulcoration that cane juice heating is antibacterial and get rid of and float miscellaneous system is connected to respectively after dividing into a plurality of branches that parallel and goes into the juice mouth that removes the fine powder device respectively, and the clear juice discharge pipeline that removes the fine powder device collects the back and is connected to the entry that removes last clear juice case jointly, and the export that removes last clear juice case passes through the entry that the pipeline connection removed last clear juice pump, removes the outlet pipeline connection of last clear juice pump and crosses heating and edulcoration system before the membrane to the cane juice.
The heating and impurity removing system before the sugarcane juice passes through the membrane comprises a secondary heater, a filter bag filtering device, a microfiltration raw material tank and a microfiltration raw material pump; the secondary heater is provided with multistage tube type heat exchangers, the heat exchangers at all stages are sequentially connected in series through connecting pipelines, the inlet of the front-end heat exchanger is connected with the outlet pipeline of a final-stage clear juice pump of the cane juice fine powder removing system, the outlet of the final heat exchanger is connected with the inlet of a filter bag filtering device through a pipeline, the clear juice outlet of the filter bag filtering device is connected with the cane juice inlet of a microfiltration raw material tank through a pipeline, the cane juice outlet of the microfiltration raw material tank is connected with the inlet of a microfiltration raw material pump through a pipeline, and the outlet pipeline of the microfiltration raw material pump is connected to a rear-stage tertiary.
The pretreatment system before membrane filtration of sugarcane juice of the utility model is the most advanced stage of a pure sugarcane plant cell water beverage production line, which adopts a pure physical mode to sequentially carry out multi-stage pretreatment of primary impurity removal, heating bacteriostasis, floating impurity removal, fine powder removal, heating before film coating, impurity removal and the like on the primary sugarcane juice extracted from a sugarcane juice groove below a first-stage squeezer in a sugar refinery, thereby removing impurities and bacteria in the sugarcane juice before the sugarcane juice passes the film, ensures the quality and the taste of the sugarcane juice, ensures that a three-stage membrane filtration system at the later stage of a pure sugarcane plant cell water beverage production line can continuously and normally operate, can not greatly reduce the membrane flux, frequently blocks membrane equipment, in addition, the pretreatment system before membrane crossing of sugarcane juice can also enable octacosanol in sugarcane to be fully separated into the sugarcane juice, so that valuable nutritional ingredients in the sugarcane can be completely reserved in subsequent products.
Drawings
FIG. 1 is a schematic view of the pretreatment system before membrane filtration of sugarcane juice.
FIG. 2 is a schematic view of the primary squeezing tank.
Fig. 3 is a schematic perspective view of the settler.
Figure 4 is a top view of the settler of figure 3.
Fig. 5 is a schematic sectional view of the settler in the direction of a-a in fig. 4.
FIG. 6 is a schematic perspective view of the device for removing fine powder.
FIG. 7 is a front view of the deagglomeration device.
FIG. 8 is a top view of the deagglomeration device.
FIG. 9 is a left side view of the deagglomeration device.
FIG. 10 is a schematic sectional view of a solid-liquid separator in front view
In the figure: 1-juice taking pump, 2-filter screen device, 3-primary pressing juice box, 3 a-cane juice inlet, 3 b-overflow pipeline, 3 c-cane juice outlet, 3 d-bottom discharge outlet, 4-primary pressing juice pump, 5-cane juice tank under first-stage squeezer in sugar refinery, 6-filter residue returning device, 7-bagasse conveying tank of first-stage squeezer in sugar refinery, 8-sludge discharge pump, 9-primary heater, 10-settler, 10 a-outer cylinder, 10 b-raw material inlet, 10 c-scum overflow port, 10 d-spoiler, 10 e-bottom discharge valve, 10 f-middle spacer sleeve, 10 g-central overflow cylinder, 10 h-clear juice overflow port, 10 i-liquid discharge pipeline, 11-residual juice barrel and 12-impurity removal clear juice pump, 13-a residual juice pump, 14-a fine powder removing device, 14 a-a solid-liquid separator, 14 b-a clear juice buffer tank, 14 c-a bagasse fine powder collecting box, 14 d-a longitudinal partition plate, 14 e-a left end cover, 14 f-a juice inlet, 14 g-a discharge pipeline, 14 h-a clear juice outlet, 14 i-a lower support rod, 14 j-a bagasse fine powder outlet, 14 k-a filter screen cylinder, 14 l-a stirring shaft, 14 m-a stirring blade, 14 n-a spiral blade, 14 o-a circular baffle, 14 p-a speed reducing motor, 15-a fine powder removing clear juice tank, 16-a fine powder removing clear juice pump, 17-a fine powder discharging pump, 18-a secondary heater, 19-a filter bag filtering device, 20-a microfiltration raw material tank and 21-a microfiltration raw material pump.
Detailed Description
The following describes the embodiments of the present invention with reference to the accompanying drawings.
As shown in figure 1, the pretreatment system before membrane filtration of cane juice comprises a cane juice extraction and primary impurity removal system, a cane juice heating, bacteriostasis and floating impurity removal system, a cane juice fine powder removal system and a heating and impurity removal system before membrane filtration of cane juice, which are sequentially connected.
As shown in fig. 1, cane juice draws and preliminary edulcoration system is including getting juice pump 1, filter sieve device 2, primary press juice case 3, primary press juice pump 4, the cane juice groove 5 of getting juice pump 1's entry through the first-order squeezer below of tube coupling sugar refinery, the export of getting juice pump 1 passes through tube coupling to filter sieve device 2's screen cloth top, the cane juice entry of tube coupling primary press juice case 3 is passed through to the filtrate export of filter sieve device 2 rear end, the cane juice export of primary press juice case 3 passes through the entry of tube coupling primary press juice pump 4, the export tube coupling of primary press juice pump 4 is to cane juice heating antibacterial and get rid of and float miscellaneous system.
As shown in fig. 1, a filter residue returning device 6 is further connected to the filter residue outlet at the front end of the screen device 2, and the outlet of the filter residue returning device 6 is connected to a bagasse conveying groove 7 of the first-stage squeezer of the sugar refinery. The screen device 2 adopts a screen device with 60-120 meshes.
As shown in fig. 1-2, the primary pressing juice tank 3 is of a vertical tank structure, the top surface of the tank body is conical, a cane juice inlet 3a is arranged on one side of the top surface of the tank body, the highest point of the top surface of the tank body is connected with an overflow pipeline 3b, and the outlet of the overflow pipeline 3b is connected to a bagasse conveying groove 7 of a first-stage presser in a sugar refinery; one side of the lower part of the tank body is provided with a cane juice outlet 3 c; the bottom surface of the tank body is in an inverted cone shape, a bottom discharge outlet 3d is arranged at the lowest point of the bottom surface of the tank body, the bottom discharge outlet 3d is connected with a sludge discharge pump 8 through a pipeline, the sludge discharge pump 8 is provided with a timer to control the start and stop of the sludge discharge pump, and an outlet pipeline of the sludge discharge pump 8 is connected to a bagasse conveying groove 7 of a first-stage presser in a sugar refinery.
As shown in fig. 1, the cane juice heating, bacteriostasis and floating impurity removal system comprises a primary heater 9, a settler 10, a residual juice barrel 11 and an impurity removal and juice cleaning pump 12; the primary heater 9 is provided with a plurality of stages of tubular heat exchangers, the heat exchangers at all stages are sequentially connected in series through connecting pipelines, the inlet of the front-end heat exchanger is connected with the outlet pipeline of the primary pressing juice pump 4 of the primary impurity removal system for extracting cane juice, the outlet of the tail-end heat exchanger is connected with the raw material inlet of the settler 10 through a pipeline, the scum overflow port at the outer side of the upper circumference of the settler 10 is connected to the inlet of the residual juice barrel 11 through a pipeline, the bottom discharge valve at the bottom of the settler 10 is also connected to the inlet of the residual juice barrel 11 through a pipeline, the clear juice outlet at one side of the lower part of the settler 10 is connected with the inlet of the impurity removal clear juice pump 12 through a pipeline, and the outlet.
As shown in fig. 3-5, the settler 10 is provided with an outer cylinder 10a, the body of the outer cylinder 10a is a longitudinal large cylinder, the top surface of the body of the outer cylinder 10a is open, the outer side of the body of the outer cylinder 10a near the top surface is connected with a raw material inlet 10b and a scum overflow port 10c, wherein the raw material inlet 10b is horizontally arranged and tangentially connected with the outer circumference of the body of the outer cylinder 10a, and the scum overflow port 10c is arranged at the side of the raw material inlet 10 b; the bottom surface of the cylinder body of the outer cylinder body 10a is provided with a conical back cover, a plurality of vertically arranged spoilers 10d are longitudinally and uniformly distributed on the inner wall of the conical surface of the conical back cover, and the lowest end of the conical back cover is connected with a bottom discharge valve 10 e; the inner part of the barrel body of the outer barrel body 10a is provided with a middle spacer sleeve 10f through a bracket, the middle spacer sleeve 10f is a longitudinal cylinder which has a smaller caliber than the barrel body of the outer barrel body 10a and is penetrated up and down, and the middle spacer sleeve 10f is flush with the upper and lower heights of the barrel body of the outer barrel body 10a and the axial lead is superposed; a central overflow cylinder 10g is erected at the upper position of the center inside the middle spacer sleeve 10f through a bracket, the cylinder body of the central overflow cylinder 10g is a longitudinal small cylinder with the caliber smaller than that of the middle spacer sleeve 10f, the top surface of the cylinder body of the central overflow cylinder 10g is open, clear juice overflow ports 10h uniformly distributed along the circumference of the cylinder wall are arranged at the upper position of the cylinder body of the central overflow cylinder 10g, and the lower part of the cylinder body of the central overflow cylinder 10g is connected with a liquid outlet pipeline 10 i; the liquid outlet pipe 10i extends downwards in the middle spacer sleeve 10f and penetrates out of the middle spacer sleeve 10f, and then penetrates out of one side of the conical bottom sealing of the outer cylinder body 10a in an inclined mode, and therefore a clear juice outlet is formed.
As shown in figure 1, the cane juice heating, bacteriostasis and floating impurity removing system is further provided with a residual juice pump 13, an outlet of the residual juice barrel 11 is connected with an inlet of the residual juice pump 13 through a pipeline, and an outlet of the residual juice pump 13 is connected to a bagasse conveying groove 7 of a first-stage squeezer of a sugar refinery through a pipeline.
As shown in FIG. 1, the cane juice fines removal system comprises a fines removal device 14, a fines removal clear juice tank 15 and a fines removal clear juice pump 16; the fine powder removing devices 14 are multiple, the outlet pipelines of the impurity removing and cleaning pumps 12 of the cane juice heating and bacteriostasis and floating impurity removing system are divided into multiple parallel branches and then are respectively connected to juice inlets of the fine powder removing devices 14, the clear juice discharging pipelines of the fine powder removing devices 14 are converged and then are jointly connected to inlets of the final juice removing boxes 15, the outlets of the final juice removing boxes 15 are connected with inlets of the final juice removing pumps 16 through pipelines, and the outlet pipelines of the final juice removing pumps 16 are connected to the heating and impurity removing system before cane juice passes through a membrane.
As shown in FIGS. 6-10, the fine powder removing device is provided with a frame, a group of solid-liquid separators 14a is arranged above the frame, and a clear juice buffer tank 14b and a bagasse fine powder collecting tank 14c are arranged below the frame; the solid-liquid separator 14a is provided with a transverse cylindrical shell, the inner cavity of the shell is provided with two longitudinal partition plates 14d, and the two longitudinal partition plates 14d divide the inner cavity of the shell into a feeding cavity, a separation cavity and a slag discharging cavity from left to right in sequence; the left end of the feeding cavity is provided with a left end cover 14e which can be opened towards one side, a juice inlet 14f is arranged above the feeding cavity, a discharge pipeline 14g which horizontally and vertically penetrates through the bottom of the feeding cavity is arranged below the left end of the shell, the upper side of the middle pipe body of the discharge pipeline 149 is communicated with the feeding cavity, two ends of the discharge pipeline 14g are connected onto the rack through bearing seats, therefore, the left end of the shell is hinged onto the rack, and the end heads of two sides of the discharge pipeline 14g, which extend out of the two bearing seats, are respectively connected with a plug and a juice discharge valve; a clear juice outlet 14h is formed in the leftmost position below the separation cavity, a lower supporting rod 14i is hinged to the right end of the separation cavity below the shell, the lower end of the lower supporting rod 14i is connected to the rack, and the right end of the shell is upwards supported from the rack by the lower supporting rod 14i to enable the shell to be transversely inclined and arranged in a mode that the left is lower and the right is higher; a bagasse fine powder outlet 14j is arranged below the slag discharging cavity; the middle parts of two longitudinal partition plates 14d of the shell are provided with openings, a detachable filter screen cylinder 14k which is transversely arranged along the axial lead of the separation cavity is erected on the openings of the two longitudinal partition plates 14d, the middle cylinder body of the filter screen cylinder 14k is composed of a filter screen, the left end port and the right end port of the filter screen cylinder 14k are both open, the left end port of the filter screen cylinder 14k is communicated with the feeding cavity, and the right end port of the filter screen cylinder 14k is communicated with the slag discharging cavity; a rotatable stirring scraper component is sleeved in the filter screen cylinder 14k, the stirring scraper component is provided with a longitudinal stirring shaft 14l, a group of longitudinal stirring blades 14m uniformly distributed along the circumference of the stirring shaft is fixedly connected to the left end shaft body of the stirring shaft 14l, a continuous spiral blade 14n is fixedly wound on the periphery of the stirring blade 14m, the left end shaft body of the stirring shaft 14l, together with the stirring blades 14m and the spiral blade 14n, extends into the filter screen cylinder 14k, a rotating gap is formed between the outer edge of the spiral blade 14n and the cylinder wall of the filter screen cylinder 14k, a circular baffle plate 14o is fixedly connected to the left end shaft body of the stirring shaft 14l at a position corresponding to the right port of the filter screen cylinder 14k, the right port of the filter screen cylinder 14k is blocked by the circular baffle plate 14o, and a gap for fine bagasse to pass through is formed between the outer edge of the circular baffle plate 14o and the cylinder wall of the right port of the filter screen cylinder 14; the right end shaft body of the stirring shaft 14l penetrates out of the right end cover of the shell rightwards and is connected with a speed reducing motor 14p arranged on the right end cover of the shell, and the speed reducing motor 14p drives the whole stirring scraper component to rotate; the clear juice buffer tank 14b is arranged below a clear juice outlet 14h of the solid-liquid separator 14a, and a clear juice discharge pipeline is arranged on one side of the clear juice buffer tank 14 b; the bagasse fine powder collecting box 14c is arranged below a bagasse fine powder outlet 14j of the solid-liquid separator 14a, and a bagasse fine powder discharge pipeline is arranged on one side of the bagasse fine powder collecting box 14 c.
As shown in figure 1, the cane juice fine powder removing system is also provided with a dust removing pump 17, bagasse fine powder discharge pipelines of the fine powder removing device 14 are collected and then are jointly connected to an inlet of the dust removing pump 17, and an outlet pipeline of the dust removing pump 17 is connected to a bagasse conveying trough 7 of a first-stage squeezer of a sugar refinery.
As shown in fig. 1, the heating and impurity removing system before the sugarcane juice passes through the membrane comprises a secondary heater 18, a filter bag filtering device 19, a microfiltration raw material tank 20 and a microfiltration raw material pump 21; the secondary heater 18 is provided with a plurality of stages of tubular heat exchangers, the heat exchangers at all stages are sequentially connected in series through connecting pipelines, the inlet of the front-end heat exchanger is connected with the outlet pipeline of the fine powder removing system for removing the final clear juice pump 16, the outlet of the final heat exchanger is connected with the inlet of the filter bag filtering device 19 through a pipeline, the clear juice outlet of the filter bag filtering device 19 is connected with the cane juice inlet of the microfiltration raw material tank 20 through a pipeline, the cane juice outlet of the microfiltration raw material tank 20 is connected with the inlet of the microfiltration raw material pump 21 through a pipeline, and the outlet pipeline of the microfiltration raw material pump 21 is connected to the rear-stage three-stage.
The utility model discloses a pretreatment systems's before membrane is crossed to cane juice work flow does:
(1) sugarcane juice extracting and primary impurity removing system
The juice extracting pump 1 is used for extracting the primary sugarcane juice from the sugarcane juice tank 5 below the first-stage squeezer in the sugar refinery, then the juice is pumped to the screening device 2 with 60-120 meshes, coarse bagasse and silt in the primary sugarcane juice are filtered by the screening device 2, the obtained cane juice filtrate flows into the primary sugarcane juice box 3 for storage, and the primary sugarcane juice pump 4 pumps the cane juice in the primary sugarcane juice box 3 to the next-stage treatment system. Bagasse and silt separated by the screening device 2 are returned to a bagasse conveying groove 7 of a first-stage presser of a sugar refinery for recycling through a filter residue returning device 6; the bagasse and the silt deposited at the bottom of the primary pressing juice box 3 are discharged at regular time, and the discharged bagasse and silt are sent back to the bagasse conveying groove 7 of the first-stage presser of the sugar refinery through a sludge discharge pump 8 to be recycled.
(2) Sugarcane juice heating, bacteriostasis and floating impurity removing system
The cane juice sent by the previous-stage system is firstly sent into a primary heater 9, the cane juice is heated to 60-80 ℃ by the primary heater 9 step by step to kill or inhibit most microorganisms in the cane juice and prevent the cane juice from deteriorating to generate peculiar smell, then the cane juice is sent into a settler 10 from a raw material inlet 10b of the settler 10 to be physically settled, in the settling treatment process, foam and scum in the cane juice are discharged from a scum overflow port 10c at the upper part of the settler 10 and flow into a residual juice barrel 11, the cane slag and silt with higher density in the cane juice are settled to the bottom of the settler 10 and are discharged through a bottom discharge valve 10e and flow into the residual juice barrel 11, and the cane juice impurity-removing clear juice is discharged from a clear juice outlet of the settler 10 and is pumped to the next-stage treatment system by an impurity-removing clear juice pump 12. The impurities collected in the residual juice barrel 11 are sent back to the bagasse conveying groove 7 of the first-stage squeezer of the sugar refinery for recycling through the residual juice pump 13.
(3) Sugarcane juice fine powder removing system
The cane juice delivered by the previous-stage system is divided into a plurality of branches which are respectively delivered into the fine powder removing devices 14 to carry out solid-liquid separation treatment in a pure physical mode so as to remove suspended fine bagasse powder below 240 meshes in the cane juice, the fine powder removing clear juice discharged by the clear juice discharge pipeline of the fine powder removing devices 14 is collected and then is delivered into the fine powder removing clear juice box 15 to be stored, and the fine powder removing clear juice in the fine powder removing clear juice box 15 is pumped to the next-stage treatment system by the fine powder removing clear juice pump 16. The bagasse fine powder collected by the fine powder removing device 14 is sent back to the bagasse conveying groove 7 of the first-stage presser of the sugar refinery through a powder discharging pump 17 for recycling.
(4) Heating and impurity removing system before sugarcane juice passes through film
The cane juice sent by the previous-stage system is firstly sent into a secondary heater 18, the cane juice is heated to 85 ℃ by the secondary heater 18 step by step, cane wax in the cane juice is completely melted, octacosanol is separated from the cane wax and enters the cane juice, then the heated cane juice is sent into a filter bag filtering device 19 for filtering, impurities such as condensate, water scale and carbon scale generated in the secondary heating process of the cane juice are filtered by the filter bag filtering device 19, the cane juice discharged from the filter bag filtering device 19 flows into a microfiltration raw material tank 20 for storing, and then the cane juice in the microfiltration raw material tank 20 is pumped into a next-stage three-stage membrane filtering system by a microfiltration raw material pump 21 for membrane treatment.
The above-mentioned drawings are only exemplary embodiments of the present invention and are not intended to limit the present invention, and any modifications or equivalent substitutions and improvements made within the spirit and principles of the present invention should be included within the scope of the present invention.
Claims (7)
1. A pretreatment system before sugarcane juice membrane filtration is characterized in that: the pretreatment system before the sugarcane juice passes through the membrane comprises a sugarcane juice extraction and primary impurity removal system, a sugarcane juice heating, bacteriostasis and floating impurity removal system, a sugarcane juice fine powder removal system and a heating and impurity removal system before the sugarcane juice passes through the membrane, which are sequentially connected;
the cane juice extracting and primary impurity removing system comprises a juice extracting pump, a filter screen device, a primary juice pressing box and a primary juice pressing pump, wherein the inlet of the juice extracting pump is connected with a cane juice groove below a first-stage squeezer of a sugar refinery through a pipeline, the outlet of the juice extracting pump is connected to the upper part of a screen mesh of the filter screen device through a pipeline, the filtrate outlet at the rear end of the filter screen device is connected with the cane juice inlet of the primary juice pressing box through a pipeline, the cane juice outlet of the primary juice pressing box is connected with the inlet of the primary juice pressing pump through a pipeline, and the outlet of the primary juice pressing pump is connected to a cane juice heating and antibacterial and floating impurity removing system through;
the cane juice heating, bacteriostasis and impurity removing system comprises a primary heater, a settler, a residual juice barrel and an impurity removing and juice cleaning pump; the primary heater is provided with a plurality of stages of tubular heat exchangers, the heat exchangers are sequentially connected in series through connecting pipelines, an inlet of the heat exchanger at the front end is connected with an outlet pipeline of a primary juice pump of the cane juice extraction and primary impurity removal system, an outlet of the heat exchanger at the tail end is connected with a raw material inlet of a settler through a pipeline, a scum overflow port on the outer side of the circumference of the upper part of the settler is connected to an inlet of a residual juice barrel through a pipeline, a bottom discharge valve at the bottom of the settler is also connected to an inlet of the residual juice barrel through a pipeline, a clear juice outlet on one side of the lower part of the settler is connected with an inlet of an impurity removal clear juice pump through a pipeline;
the cane juice fine powder removing system comprises a fine powder removing device, a fine powder removing clear juice box and a fine powder removing clear juice pump; the device comprises a plurality of fine powder removing devices, outlet pipelines of impurity removing clear juice pumps of a cane juice heating, bacteriostasis and floating impurity removing system are divided into a plurality of parallel branches and then are respectively connected to juice inlets of the fine powder removing devices, clear juice discharge pipelines of the fine powder removing devices are converged and then are jointly connected to inlets of an end removing clear juice box, outlets of the end removing clear juice box are connected with inlets of the end removing clear juice pumps through pipelines, and outlet pipelines of the end removing clear juice pumps are connected to the heating and impurity removing system before cane juice passes through a membrane;
the heating and impurity removing system before the sugarcane juice passes through the membrane comprises a secondary heater, a filter bag filtering device, a microfiltration raw material tank and a microfiltration raw material pump; the secondary heater is provided with multistage tube type heat exchangers, the heat exchangers at all stages are sequentially connected in series through connecting pipelines, the inlet of the front-end heat exchanger is connected with the outlet pipeline of a final-stage clear juice pump of the cane juice fine powder removing system, the outlet of the final heat exchanger is connected with the inlet of a filter bag filtering device through a pipeline, the clear juice outlet of the filter bag filtering device is connected with the cane juice inlet of a microfiltration raw material tank through a pipeline, the cane juice outlet of the microfiltration raw material tank is connected with the inlet of a microfiltration raw material pump through a pipeline, and the outlet pipeline of the microfiltration raw material pump is connected to a rear-stage tertiary.
2. The pre-membrane treatment system for cane juice according to claim 1, wherein: in the cane juice draws and tentatively edulcoration system, the filter residue outlet of filter sieve device front end still is connected with filter residue loopback device, and the export of filter residue loopback device is connected to the bagasse conveyer trough of the first order squeezer of sugar-refinery.
3. The pre-membrane treatment system for cane juice according to claim 1, wherein: in the cane juice extraction and primary impurity removal system, the primary juice pressing tank adopts a vertical tank body structure, the top surface of a tank body is conical, a cane juice inlet is formed in one side of the top surface of the tank body, the highest point of the top surface of the tank body is connected with an overflow pipeline, and the outlet of the overflow pipeline is connected to a bagasse conveying groove of a first-stage squeezer in a sugar refinery; one side of the lower part of the tank body is provided with a cane juice outlet; the bottom surface of the tank body is in an inverted cone shape, a bottom discharge outlet is arranged at the lowest point of the bottom surface of the tank body, the bottom discharge outlet is connected with a sludge discharge pump through a pipeline, the sludge discharge pump is provided with a timer to control the start and stop of the sludge discharge pump, and an outlet pipeline of the sludge discharge pump is connected to a bagasse conveying groove of a first-stage squeezer in a sugar refinery.
4. The pre-membrane treatment system for cane juice according to claim 1, wherein: in the cane juice heating, bacteriostasis and floating impurity removal system, the settler is provided with an outer barrel, the barrel body of the outer barrel is a longitudinal large barrel, the top surface of the barrel body of the outer barrel is open, the position of the outer side of the barrel body of the outer barrel, which is close to the top surface, is respectively connected with a raw material inlet and a scum overflow port, wherein the raw material inlet is horizontally arranged and is tangentially connected with the circumference of the outer side of the barrel body of the outer barrel, and the scum overflow port is arranged at the side of the raw material inlet; the bottom surface of the outer cylinder body is provided with a conical sealing bottom, a plurality of vertically arranged spoilers are longitudinally and uniformly distributed on the inner wall of the conical surface of the conical sealing bottom, and the lowest end of the conical sealing bottom is connected with a bottom discharge valve; the inner part of the outer barrel body is provided with a middle spacer sleeve through a bracket, the middle spacer sleeve is a longitudinal cylinder which has a smaller caliber than that of the outer barrel body and is communicated up and down, and the middle spacer sleeve is level with the upper and lower heights of the outer barrel body and the axial lead of the middle spacer sleeve is coincident; a central overflow cylinder is erected at the position close to the center inside the middle spacer sleeve through a bracket, the cylinder body of the central overflow cylinder is a longitudinal small cylinder with the diameter smaller than that of the opening of the middle spacer sleeve, the top surface of the cylinder body of the central overflow cylinder is open, clear juice overflow ports which are uniformly distributed along the circumference of the cylinder wall are arranged at the position close to the upper part of the cylinder body of the central overflow cylinder, and the lower part of the cylinder body of the central overflow cylinder is connected with a liquid outlet pipeline; the liquid outlet pipeline extends downwards in the middle spacer sleeve and penetrates out of the middle spacer sleeve, and then penetrates out of one side of the conical back cover of the outer barrel body in an inclined mode, and therefore a clear juice outlet is formed.
5. The pre-membrane treatment system for cane juice according to claim 1, wherein: in the cane juice heating bacteriostasis and floating impurity removal system, the cane juice heating bacteriostasis and floating impurity removal system is also provided with a residual juice pump, the outlet of the residual juice barrel is connected with the inlet of the residual juice pump through a pipeline, and the outlet pipeline of the residual juice pump is connected to a bagasse conveying groove of a first-stage squeezer in a sugar refinery.
6. The pre-membrane treatment system for cane juice according to claim 1, wherein: in the cane juice fine powder removing system, the fine powder removing device is provided with a rack, a group of solid-liquid separators are erected above the rack, and a clear juice buffer tank and a bagasse fine powder collecting tank are arranged below the rack; the solid-liquid separator is provided with a transverse cylindrical shell, the inner cavity of the shell is provided with two longitudinal clapboards, and the two longitudinal clapboards divide the inner cavity of the shell into a feeding cavity, a separation cavity and a slag discharging cavity from left to right in sequence; the left end of the feeding cavity is provided with a left end cover which can be opened towards a single side, a juice inlet is arranged above the feeding cavity, a discharge pipeline which horizontally and vertically penetrates through the bottom of the feeding cavity is arranged below the left end of the shell, the upper side of a pipe body in the middle of the discharge pipeline is communicated with the feeding cavity, two ends of the discharge pipeline are connected to the rack through bearing seats, therefore, the left end of the shell is hinged to the rack, and two side ends of the discharge pipeline, which extend out of the two bearing seats, are respectively connected with a plug and a juice discharge valve; a clear juice outlet is arranged at the leftmost position below the separation cavity, a lower supporting rod is hinged at the right end of the separation cavity below the shell, the lower end of the lower supporting rod is connected to the rack, and the right end of the shell is upwards supported from the rack by the lower supporting rod so that the shell is transversely inclined with the lower left and the higher right; a bagasse fine powder outlet is arranged below the slag discharging cavity; the middle parts of the two longitudinal partition plates of the shell are respectively provided with an opening, a detachable filter screen cylinder transversely arranged along the axial lead of the separation cavity is erected on the openings of the two longitudinal partition plates, the middle cylinder body of the filter screen cylinder is composed of a filter screen, the left and right ports of the filter screen cylinder are open, the left port of the filter screen cylinder is communicated with the feeding cavity, and the right port of the filter screen cylinder is communicated with the slag discharging cavity; a rotatable stirring scraper component is sleeved in the filter screen cylinder and provided with a longitudinal stirring shaft, a group of longitudinal stirring blades uniformly distributed along the circumference of the stirring shaft is fixedly connected to the left end shaft body of the stirring shaft, a continuous spiral blade is fixedly wound on the periphery of each stirring blade, the left end shaft body of the stirring shaft, the stirring blades and the spiral blade extend into the filter screen cylinder together, a rotating gap is formed between the outer edge of each spiral blade and the cylinder wall of the filter screen cylinder, a round baffle is also fixedly connected to the left end shaft body of the stirring shaft at the position corresponding to the right port of the filter screen cylinder, the right port of the filter screen cylinder is blocked by the round baffle, and a gap for enabling fine bagasse powder to pass through is formed between the outer edge of the round baffle and the cylinder wall of the right port of the filter screen cylinder; the right end shaft body of the stirring shaft penetrates out of the right end cover of the shell rightwards and is connected with a speed reducing motor arranged on the right end cover of the shell, and the speed reducing motor drives the whole stirring scraper component to rotate; the clear juice buffer tank is arranged below a clear juice outlet of the solid-liquid separator, and a clear juice discharge pipeline is arranged on one side of the clear juice buffer tank; the bagasse fine powder collecting box is arranged below a bagasse fine powder outlet of the solid-liquid separator, and a bagasse fine powder discharge pipeline is arranged on one side of the bagasse fine powder collecting box.
7. The pre-membrane treatment system for cane juice according to claim 1, wherein: in the cane juice fine powder removing system, the cane juice fine powder removing system is also provided with a dust discharging pump, fine bagasse powder discharging pipelines of the fine bagasse powder collecting box are converged and then are jointly connected to an inlet of the dust discharging pump, and an outlet pipeline of the dust discharging pump is connected to a bagasse conveying groove of a first-stage presser of a sugar refinery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922064083.1U CN211129633U (en) | 2019-11-26 | 2019-11-26 | Pretreatment system before sugarcane juice film-coating |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922064083.1U CN211129633U (en) | 2019-11-26 | 2019-11-26 | Pretreatment system before sugarcane juice film-coating |
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| CN211129633U true CN211129633U (en) | 2020-07-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021104105A1 (en) * | 2019-11-26 | 2021-06-03 | 广西叶茂机电自动化有限责任公司 | System and process for pretreating sugarcane juice before membrane filtration |
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2019
- 2019-11-26 CN CN201922064083.1U patent/CN211129633U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021104105A1 (en) * | 2019-11-26 | 2021-06-03 | 广西叶茂机电自动化有限责任公司 | System and process for pretreating sugarcane juice before membrane filtration |
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