Summary of the invention
The technical problem to be solved in the present invention is to provide a seed shrimp refrigeration pretreated stream waterline, and prawn that can streamlined is sprayed, drains, quick freezing and bag ice technique, realizes before refrigeration fast, high-efficiency pretreatment.
For solving the problems of the technologies described above, technical scheme of the present invention is: wouldn't write, the band right requires to determine
Operation principle of the present invention is: shrimp enters the cooling and water logging device trickle section of brine sparge from the refrigeration pretreatment unit, salt solution in the salt solution pre-cooling box is cooled to uniform temperature, enter water distributor by static pressure from bottom through cooling salt solution, salt solution enters water spraying tray from water distributor bottom aperture, water spraying tray is sprinkled upon cool brine through above the shrimp on the foraminous conveyer of bottom by small hole at bottom part, makes on shrimp to wrap the salt water jacket; Then shrimp enters the draining section and drains unnecessary salt solution; Enter the freeze section foraminous conveyer from draining section foraminous conveyer again, enter in thermal-insulating body, at the uniform velocity move in the thermal-insulating body of low temperature and then lowered the temperature, reach quick freezing purpose; Finally enter the vibration pack ice production apparatus, be placed in the vibra shoot feed end of vibration pack ice production apparatus, effect due to effect of vibration, shrimp slowly moves to discharge end from feed end on the grid tilted, during through atomizing sprayer, the side direction sparge pipe of the upper and lower spraying water pipe group is to freezing the salt solution of shrimp surface spraying drinkable water or 0-4%, what freeze the shrimp surface uniform, wraps the ice clothing.
The invention has the advantages that: (1) shrimp surface is spooned salt solution, and salt solution infiltrates the head of shrimp, and the salt solution effect can suppress corruption biological and that the enzyme effect produces, has weakened the probability that shrimp blackhead, the phenomenon that turns around occur;
(2) cool brine drenches on the shrimp surface, and prawn has carried out further cooling, has accelerated shrimp and spend the time of chill point in follow-up quick freezing operation, has weakened the condition that generates large ice crystal, has reduced the possibility of shrimp disorganization, has guaranteed the quality of shrimp;
(3) shrimp has passed through salt solution precooling cooling before quick freezing, has reduced freeze-off time, has reduced and has freezed energy consumption.
(4) shrimp can carry out quick freezing, refrigeration technique after wrapping the salt water jacket, because the salt solution freezing point is lower than pure water temperature, has shortened thawing time, has reduced the possibility of dehydration when shrimp is thawed, mistake nutritional labeling.
(5) can to have avoided in the past immersion bag ice mode to run cold serious for vibration pack ice, without secondary, freezes, and saved energy consumption;
(6) the cold consumption of the excessive increase of bag ice and client's buying expenses have been avoided;
(7) utilize the cooling and water logging device of brine sparge, quick freezer, vibration pack ice production apparatus and foraminous conveyer to form a shrimp refrigeration pretreated stream aquation production line, and then realize that whole shrimp refrigerates pretreated streamlined production, greatly improve the efficiency that shrimp is processed, reduce hand labor intensity, be conducive to improve the sanitary condition of shrimp.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be described in detail.
As shown in Figure 1, 2, mainly comprise foraminous conveyer 1, brine sparge is cooling and water logging device 2, quick freezer 3, vibration pack ice production apparatus 4, this foraminous conveyer 1 is divided into trickle section foraminous conveyer, draining section foraminous conveyer, freeze section foraminous conveyer from front to back successively by technological requirement, at trickle section foraminous conveyer, draining section foraminous conveyer, the cooling and water logging device 2 of brine sparge is set, the freeze section foraminous conveyer arranges quick freezer 3, at the discharge end of freeze section foraminous conveyer, vibration pack ice production apparatus 4 is set.
The process acts of above-mentioned each workshop section is:
Cooling and the water logging device 2 of brine sparge is wrapped up in the salt water jacket of 3%-4% for prawn, and utilizes the cool brine prawn of 0 ℃~2 ℃ to carry out precooling; In addition, also play drop except unnecessary surperficial salt solution, prevent that unnecessary salt solution from entering quick freezer 3, be difficult for de-material to avoid the bonding foraminous conveyer 1 of too much brine freezing, simultaneously, avoid salt solution to increase quick freezer 3 cold consumption.
The effect of quick freezer 3 is that the quick freezing in 10 minutes-30 minutes of the shrimp body through wrapping up in salt water jacket and precooling is arrived to central temperature not higher than-18 ℃, and now the temperature in quick freezer 3 is not higher than-30 ℃.
The effect of vibration pack ice production apparatus 4 is: (1) utilizes vibration force to dump to freeze shrimp; (2) carry out glazing to freezing shrimp.In addition, due to effect of vibration and the effect of atomized water spray, the ice clothing that freezes the shrimp surface is more even.
Cooling and concrete structure water logging device 2 of brine sparge is:
Have the circulated sprinkling system, it comprises water spraying tray 21, trickle section drip pan 22, trickle section header tank 23, circulating pump A24, salt solution pre-cooling box 25, the water distributor 26 that sets gradually a brine sparge closed circuit of formation.Salt solution pre-cooling box 25 is a retaining casing that top is unlimited, at box house, is installed with the brine-cooled dividing wall type heat exchanger, and a flow spoiler, and salt solution pre-cooling box 25 is for storing and the salt solution of 3%-4% being cooled to 0 ℃ of-2 ℃ of effect.
Water spraying tray 21 be arranged on trickle section foraminous conveyer 1 directly over, the width of the width of water spraying tray 21 and foraminous conveyer 1 is basically identical, it is the porous disc that a top is opened wide, many apertures of evenly arranging are arranged at bottom, water distributor 26 is arranged in the top of water spraying tray 21, water distributor 26 provides salt solution by salt solution pre-cooling box 25 by static pressure or exterior power, salt solution flows out by lower 26 apertures of offering of water distributor, enters porous disc, and then is evenly distributed on foraminous conveyer 1.Salt solution from water spraying tray 21 drenches on the shrimp on foraminous conveyer 1, and unnecessary water is by the mesh-structured downward outflow of foraminous conveyer 1.Trickle section drip pan 22 is positioned under foraminous conveyer 1, and setting corresponding to water spraying tray 21, and it is the water-bound that holds opened wide, try to get to the heart of a matter and tilt to install, be provided with delivery port at the inclined plane lowest part of trying to get to the heart of a matter in a top, the unnecessary salt solution flowed out for accepting foraminous conveyer 1.
Trickle section header tank 23 is arranged in trickle section drip pan 22 bottoms, is that a top is provided with the casing that holds the mouth of a river, from the salt solution of trickle section drip pan 22, from holding the mouth of a river, flows into trickle section header tank 23.The water return pipeline 27 of delivery port access salt solution pre-cooling box 25 is installed in trickle section header tank 23 bottoms, circulating pump A24 is installed on water return pipeline 27, in trickle section header tank 23, salt solution, under the effect of pumping of circulating pump 24, enters salt solution pre-cooling box 25 from water return pipeline.
The draining system, comprise draining section drip pan, draining section header tank, draining section drip pan is set under draining section foraminous conveyer 1, the delivery port access draining section header tank of draining section drip pan, the draining section header tank of draining system is communicated with the trickle section header tank of circulated sprinkling system.In the present embodiment, trickle section drip pan 22, trickle section header tank 23 in draining section drip pan, draining section header tank and circulated sprinkling system in the draining system can be made into an integral body, and draining section and trickle section can share a drip pan and header tank.
Salt solution pre-cooling box 26, water spraying tray 21, trickle section drip pan 22, the trickle section header tank 23 of the cooling and water logging device of above-mentioned brine sparge, be arranged on same support, salt solution pre-cooling box 26 is arranged on the top of support, and water spraying tray 21, trickle section drip pan 22, trickle section header tank 23 are arranged on the support bottom.
The concrete structure of quick freezer 3 is:
Mainly comprise thermal-insulating body 31, air-cooler, wherein, freeze section foraminous conveyer 1 runs through the bottom of thermal-insulating body 31, air-cooler has the heat exchanger 33 and the some blowing mouths 32 that is arranged in heat exchanger one side that are arranged on thermal-insulating body 31 inside, air-cooler adopts the topology layout of lower air-supply, upper return air pattern or side return air pattern, and thermal-insulating body 31 also is built-in with cold wind air flow guiding plate.
Those skilled in the art should understand, here be only exemplary, be not circumscribed, quick freezer 3, except above-mentioned straight line tunnel freezing, can be also current known spiral tunnel freezing plant or other porous conveyer belt continuous feeding and discharging freezing plant.
For example, the spiral tunnel freezing plant, its structure as shown in Figure 4,
Mainly comprise thermal-insulating body 31, refrigeration system 37, rotating cylinder 34, interior deep bead 35, outer deep bead 36 and spiral-shaped guide 38, thermal-insulating body 31 is interior arranges two vertically disposed rotating cylinders 34 of axis, the periphery of rotating cylinder 34 arranges spiral-shaped guide 38, rotating cylinder 34 is driven and is rotated by dynamical system, in rotating cylinder 34, the outside arranges respectively interior deep bead 35 and outer deep bead 36, the two ends, bottom of thermal-insulating body 31 are respectively and hold the feed inlet and outlet that freeze section foraminous conveyer 1 passes through, its operation principle is: rotating cylinder 34 drives the freeze section foraminous conveyer 1 that is loaded with shrimp to move along spiral-shaped guide, shrimp is in slow moving process, effect by refrigeration system 37, shrimp body quick freezing in the short period of time through wrapping up in salt water jacket and precooling is arrived to central temperature not higher than-18 ℃.Helical path has increased the time of staying of shrimp in thermal-insulating body 31, and the quick-frozen effect is better.
The concrete structure of vibration pack ice production apparatus 4 is:
As shown in Fig. 3,5,6,7,9, involving vibrations groove 41, grid 42, vibrating motor 43, damping spring 49, upper layer side are to sparge pipe 44, lower layer side to sparge pipe 45, cyclic water tank 46, feed liquid pipeline 47, circulating pump B48.
Vibra shoot 41 drives vibration by the vibrating motor 43 that is arranged on its sidewall, the strip container that vibra shoot 41 is a top end opening, bottom is taper, as shown in Figure 8, the interior grid 42 that an inclination laying is set of vibra shoot 41, the height of grid 42 is distolateral is feed end a, feed end a arranges feed hopper, the low distolateral of grid 42 is discharge end b, and vibra shoot 41 bottommosts have discharge outlet c.
Above-mentioned vibra shoot 41 is arranged on the top of bag ice production apparatus fixed frame 50 by some damping springs 49, cyclic water tank 46 is arranged in the bag ice production apparatus fixed frame 50 of 41 sides under vibra shoot, and the top of cyclic water tank 41 has holds mouth of a river d over against vibra shoot discharge outlet c.
Atomizing sprayer, comprise spraying water pipe group, cyclic water tank 46, feed liquid pipeline 47, circulating pump B48, primary filter and secondary filter, arrange respectively upper strata spraying water pipe group and lower floor's spraying water pipe group at the upper and lower sides of grid 42, upper and lower layer spraying water pipe group is arranged in parallel and is formed across the side direction sparge pipe 44,45 of grid 42 by some, and each side direction sparge pipe has some be uniformly distributed and towards the spray apertures of grid 42.Each side direction sparge pipe by cyclic water tank 46 by feed liquid pipeline 47 feed flows with circulating pump.On the feed liquid pipeline 46 of circulating pump 47 water-in and water-out sides, primary filter and secondary filter are set respectively.
For the present invention's embodiment more specifically, when mounted, its two ends are through vibra shoot 41 for the side direction sparge pipe 45 of lower floor's spraying water pipe group, and with vibra shoot 41 welded seals; Side direction sparge pipe 45 two ends are connected with feed liquid pipeline 47 by being flexible coupling.And on each side direction sparge pipe 44, side direction sparge pipe 45, feed liquid pipeline 47 mounting ball valve.
Fig. 4 shows the circulation figure of atomizing sprayer, water in cyclic water tank 46 is under the pumping of circulating pump B48, enter feed liquid pipeline 47, pass through successively primary filter 49a, circulating pump B48, aflter-fillter 49b, enter the side direction sparge pipe 44,45 of upper and lower layer, spray in spray apertures from it.In the water of spray apertures ejection, the unnecessary part bottom discharge mouth c by vibra shoot 41 again gets back to cyclic water tank 46 and collects, and realizes recycling of water.
Cooling and the water logging device operation principle of Prawn of the present invention refrigeration pretreatment brine sparge:
The trickle section:
Shrimp is placed in the upper strata conveyer belt feed side of foraminous conveyer 1 by artificial or mechanical uniform, along with foraminous conveyer passes through the water spraying tray of trickle section a with certain speed; Salt solution in the salt solution pre-cooling box is cooled to 0 ℃-2 ℃, by hydrostatic pressure, through the bottom of salt solution pre-cooling box 5, enters water distributor, and salt solution flows to water spraying tray from the perforate of water distributor bottom, then from the water spraying tray small hole at bottom part evenly be sprinkling upon from its below by shrimp; Now, shrimp is after the cool brine shower of 3%-4%, and surface wraps one deck salt water jacket, and simultaneously, the shrimp temperature descends; Enter trickle section drip pan after the foraminous conveyer with porous woven mesh structure of unnecessary salt solution by the conveying shrimp, after concentrate trickle section drip pan bottom, enter trickle section header tank.Water in trickle section header tank enters the salt solution pre-cooling box through water return pipeline under the pump action of circulating pump, after heat exchange is cooling, from salt solution pre-cooling box bottom, flows out again, realizes the cycling and reutilization of salt solution, and in the salt solution pre-cooling box, the salt water yield designs according to the water consumption situation.
The draining section:
Move to the draining section through shower cool brine shrimp with foraminous conveyer, the unnecessary salt solution coalescence in the process of operation in shrimp surface becomes the globule, salt solution with coalescence on foraminous conveyer drops to draining section drip pan, finally is pooled in trickle section header tank, and by circulating pump blowback salt solution pre-cooling box 26.
The quick-frozen section:
The shrimp body that wraps salt water jacket precooling moves to the quick-frozen section with foraminous conveyer, and now the temperature in quick freezer 3 is higher than-30 ℃, shrimp in the thermal-insulating body of quick-frozen section in 10 minutes-30 minutes quick freezing to central temperature not higher than-18 ℃.
Vibration pack ice:
Shrimp quick freezing in the quick freezing operation is arrived central temperature not higher than-18 ℃, enter vibra shoot from the feed end a of vibra shoot, under the effect of vibrating motor, shrimp slowly moves to discharge end b from feed end a on the grid tilted, during through atomizing sprayer, the side direction sparge pipe of the upper and lower spraying water pipe group is simultaneously to freezing the approximate vaporific drinkable water of shrimp surface spraying or the salt solution of 0-4%, because the temperature of freezing shrimp is lower, the surface of water under freezing is frozen into rapidly the ice clothing, the water of this spray form is adsorbed on the surface of shrimp, make the ice clothing that freezes the shrimp surface more even, during use, visual product freezing efficiency is by the valve regulated atomization water yield, avoids freezing the shrimp surface and produces trickling water, particularly in the atomized water salinity, during lower than the precooling brine strength, to prevent the dilution of shrimp body salt clothing, causes refrigeration blackhead or the phenomenon that turns around, spray unnecessary water on flase floor collects the bottom into vibra shoot, and by discharge outlet, c enters cyclic water tank, in order to again spray utilization.