CN111567757A - A continuous surimi production system and method for preparing surimi - Google Patents

Abstract

The invention discloses a continuous surimi production system and a method for preparing surimi, and belongs to the field of surimi processing. The system includes a fish meat harvester, a first decanter centrifuge, a continuous soaking tank, a rotary screen, a first built-in nozzle rotary screen, a second decanter centrifuge, and post-processing equipment connected in sequence; Spiral sedimentation centrifugation realizes rapid solid-liquid separation of surimi aqueous solution, and removes water more thoroughly. Centrifuge is used for solid-liquid separation, continuous soaking tank for oil-water separation, and built-in nozzle rotary screen for dehydration and rinsing process to realize the surimi production process. Continuous work. Compared with the traditional production line, the continuous surimi production system of the present invention does not need an extrusion and dehydration link, which can improve the quality of surimi and reduce protein denaturation during processing.

Description

A continuous surimi production system and method for preparing surimi

technical field

The invention relates to a continuous surimi production system and a method for preparing surimi, and belongs to the field of surimi processing.

Background technique

As quick-frozen surimi products are more and more popular among consumers, the demand for frozen surimi is also increasing. However, with the continuous development and utilization of marine fish resources and the limitation of the total amount of domestic freshwater fish aquaculture, the total fish resources that can be used for surimi processing show a downward trend. At present, silver carp surimi processing technology has been able to achieve a surimi yield of about 36%, but due to multiple extrusion and rehydration processes in the processing process, the quality of surimi is seriously deteriorated, and the production process consumes a lot of water.

In addition, due to the continuous promotion of environmental protection policies of "prevention first, combination of prevention and control, comprehensive treatment" and "who pollutes, who treats" in recent years, the environmental protection supervision of enterprises has been gradually strengthened. Product processing enterprises focus on indicators, and the surimi processing industry consumes 15-20 tons of water per ton of surimi output or even higher in the process after meat harvesting. Therefore, reducing the water consumption in the processing process can not only help. Reducing the cost of water use can also reduce the output of sewage, reduce the cost of sewage treatment, and reduce the risk of environmental pollution.

At present, in the traditional surimi production process, the water-soluble protein and blood water in the fish pulp are mainly removed by static rinsing. Generally, multiple dehydration procedures are required, and more water is used; and the existing production links are many, which take a long time, and the processing process is mostly intermittent operation, and the key steps need manual adjustment. In addition, the last dehydration step generally adopts screw extrusion. In this way, the physical friction caused by the processing precision of the equipment is likely to cause serious physical damage to the fish tissue, and the frictional heat can easily lead to the denaturation of the salt-soluble protein in the fish, which has a negative impact on the quality of the surimi.

SUMMARY OF THE INVENTION

In order to solve the above-mentioned problems existing at present, the present invention first provides a continuous surimi production system, the system includes a fish meat harvester, a first decanter centrifuge, a continuous soaking tank, a rotary screen connected in sequence , the first built-in nozzle rotary screen, the second horizontal screw decanter centrifuge, post-processing equipment;

The fish meat harvester is used to separate the bone spurs and the skin of the fish meat pieces to obtain an aqueous solution of the fish meat; the first decanter centrifuge is used to remove water-soluble substances and blood water from the aqueous solution of the fish meat to obtain the fish meat solids; The continuous soaking tank is used to remove the grease in the solid fish meat; the rotary screen is used to pre-dehydrate the fish meat after degreasing; the first built-in nozzle rotary screen is used to rinse the pre-dehydrated fish meat The second decanter centrifuge is used to remove moisture from the fish after rinsing; the post-processing equipment includes: chopping equipment, filling equipment, and quick-freezing equipment; the chopping equipment is used for chopping the fish. Mixed into minced fish, the filling equipment is used for packaging the minced fish meat, and the quick-freezing device is used for freezing the packaged minced fish;

The continuous soaking tank includes: a fish meat solids addition port, a floating ball inlet valve, a microbubble air pipe, a stirring paddle, an oil separator, a deflector, a floating oil scraper, a U-shaped oil receiving tank, and a fish pulp discharge port. , fish pulp;

The fish meat solids inlet is arranged on the upper part of one side of the continuous immersion tank, the floating ball inlet valve is arranged near the bottom of the fish solids inlet, and the stirring paddle is arranged on one side of the fish solids inlet. The micro-bubble air pipe is arranged at the bottom of the fish meat solids inlet side of the continuous soaking tank, and the micro-bubble air pipe is connected with the air curtain pump arranged on the outer side of the continuous soaking tank. The oil separator and the deflector are arranged on one side of the stirring paddle in sequence; the oil slick scraper and the fish pulp outlet are respectively arranged on the upper part of the other side of the continuous soaking tank and the At the bottom, the U-shaped oil receiving groove is arranged below the side adjacent to the floating oil scraper, and the U-shaped oil receiving groove is connected to the continuous soaking tank through the inclined plate; the floating oil scraper includes: a transmission chain, a scraper The oil plate and the transmission chain drive the motor, the oil scraper is arranged on the transmission chain at intervals, and the transmission chain driving motor drives the transmission chain to drive the oil scraper to circulate up and down on the fish water liquid surface;

The built-in sprinkler rotary screen includes: a feeding port, a drive motor, a drive gear, a pressure-resistant soft water pipe, a rotary screen cover, an external sprinkler head, a built-in sprinkler head, a built-in sprinkler main water pipe, a discharge port, a rotating bracket , spray water outlet, rotary screen rotary drum, rack;

The rotary screen rotary drum is arranged in the rotary screen outer cover, and the rotary screen outer cover is provided on the frame. The rotary screen rotary drum is a hollow cylindrical structure, and one end is provided with a gear, and is connected to a drive gear arranged below the gear, so The drive gear is connected to the drive motor, and the outer wall of the rotary screen rotary drum is provided with mesh screen holes; the rotary support is arranged under the other end of the rotary screen rotary drum, and the rotary drum body is held up so that the drum body rotates on the rotary support ;

The pressure-resistant soft water pipe is divided into two paths, one is the built-in spray main water pipe, the built-in spray main water pipe passes through the two ends of the rotary screen rotating drum, and the built-in spray main water pipe is provided with a plurality of built-in sprays. The other is an external main spray pipe; the external main spray pipe is located in the rotary screen rotary drum and fixed on the outer cover of the rotary screen, and the external main spray pipe is provided with a plurality of external spray pipes. set sprinkler head;

The feeding port is set at one end of the rotating barrel of the rotary screen, and the discharging port is set at the other end of the rotary barrel of the rotary screen; high.

In an embodiment of the present invention, the transfer of fish meat material between two connected devices in the generation system is divided into two types: solid-liquid mixed state and solid state. The material is connected to a temporary storage barrel and transported to the next equipment by the pump body. The solid state material can be transported from the outlet of the previous equipment to the inlet of the next equipment by means of a screw; in addition to the above transfer methods, it can also be used The height difference can realize that the exit of the previous equipment is above the entrance of the next equipment, and it is transferred by direct drop. In the actual production process, it will be considered according to many factors such as site, hygiene, convenience, cost and so on.

In one embodiment of the present invention, the fish meat harvester is a recoil type meat harvester, and the decanter centrifuge is a single-head decanter centrifuge with an aspect ratio of 2.0 or 2.5 or 3.5, The chopping and mixing equipment is a 330 chopping and mixing machine, and the quick-freezing equipment is a 2-ton flat plate quick-freezing machine.

In an embodiment of the present invention, the lower end of the oil separator is suspended in the air, 10-20 cm from the bottom of the continuous soaking tank, and the upper end of the oil separator exceeds the maximum water level allowed by the continuous soaking tank.

In an embodiment of the present invention, the distance between the deflector and the oil separator is 20-30 cm, the lower end of the deflector is connected to the bottom of the continuous soaking tank, and the height of the deflector is 40 cm. -50cm.

In an embodiment of the present invention, the bottom of the continuous soaking tank is set with a slope, the bottom surface of the soaking tank on the side near the fish pulp discharge outlet is lower, and the slope of the slope is not less than 10°.

In an embodiment of the present invention, the bottom of the soaking tank on the side of the fish pulp discharge port has a "U"-shaped structure with high two sides and a low center in the lateral direction of the soaking tank, and the fish pulp discharge port is set at the "U" shape. The lowest point of the U"-shaped structure.

In one embodiment of the present invention, the number of built-in nozzle rotary screens and decanter centrifuges is increased after the second decanter centrifuge according to the quality of surimi production, and the number of decanter centrifuges that have been passed through the second decanter centrifuge is increased. The fish meat after machine dehydration is further rinsed and dehydrated, and the quality of the surimi includes but is not limited to the elasticity and whiteness of the surimi.

In an embodiment of the present invention, the rotary screen, the first built-in nozzle rotary screen, and the second decanter centrifuge are connected to a water tank, the water tank is connected to a water pump, and the water pump is connected to the fish meat harvester, continuously type soaking tank, rotary screen, the first built-in nozzle rotary screen, the second decanter centrifuge connected; the water tank is used to collect the rotary screen, the first built-in nozzle rotary screen, the second decanter centrifuge used The filtered water is pumped to the fish meat harvester and/or the continuous soaking tank and/or the rotary screen and/or the first built-in sprinkler rotary screen and/or the second decanter centrifuge for use.

The present invention also provides a method for preparing surimi by utilizing the above-mentioned continuous surimi production system, characterized in that the method comprises:

Step 1: After the fish meat pieces are processed by a fish meat meat harvester to separate the bone spurs and the fish skins, an aqueous solution containing fish meat is obtained;

Step 2: dewatering the aqueous solution containing fish meat through the first decanter centrifuge to obtain fish meat solids;

Step 3: By removing the grease in the solid fish meat in the continuous soaking tank, set the distance between the baffle plate and the oil separator and the height of the baffle plate in the continuous soaking tank according to the production weight specification; The flow time from the inlet to the outlet of the fish pulp;

Step 4: Pre-dehydrate the fish pulp discharged from the fish pulp outlet through the rotary screen, enter the first built-in sprinkler rotary screen, and use the built-in sprinkler head and the external sprinkler head of the first built-in sprinkler rotary screen to dehydrate the fish pulp. Rinse and continuously rinse, and then enter the second decanter centrifuge to obtain fish flesh with a certain moisture content. According to the quality of surimi production, the fish flesh is then processed by one or more built-in nozzle rotary screens and decanter centrifuges. operation, further rinsing and dehydrating the fish meat after dehydration by the second decanter centrifuge;

Step 5: After chopping, bagging and quick-freezing the fish flesh to obtain surimi, and collecting the water used by the rotary screen, the first built-in nozzle rotary screen, and the second decanter centrifuge, and pumping it to Fish meat harvester and/or continuous soaking tank and/or rotary screen and/or first built-in sprinkler rotary screen and/or second decanter centrifuge.

In an embodiment of the present invention, the moisture content of the fish meat solids is not less than 80%.

The application of the continuous surimi production system and the preparation method of the present invention in the field of surimi processing.

Beneficial effects:

The processing process of the invention reduces the intermittent time of the processing process and realizes a continuous surimi production process; avoids the screw extrusion operation in the processing process in the prior art, prevents fish meat damage and protein thermal denaturation; reduces the water consumption in the processing process, and achieves more Green, efficient and sustainable processing. specifically:

1. The present invention realizes the continuous production operation of each link of surimi production by combining the fish meat harvester, the decanter centrifuge, the continuous soaking tank, the rotary screen, the built-in nozzle rotary screen, and the post-processing equipment. The continuous soaking tank and the following rotary screen dewatering equipment ensure the continuous operation of the entire surimi production process and avoid the risk of deterioration of the surimi quality caused by the standing soaking process in the prior art.

2. The decanter centrifuge was introduced into the surimi production line, and the decanter centrifuge with appropriate aspect ratio parameters was selected to realize the continuous operation of the surimi, and to eliminate the screw extrusion dehydration method of the prior art, It minimizes the texture damage and protein denaturation caused by physical friction and frictional heat generation on fish tissue, reduces the damage to the fiber state of the protein in the surimi during processing, and has a good protective effect on the fish protein.

3. In the present invention, the built-in nozzle rotary screen and the decanter centrifuge can be added, and the whiteness and elastic quality of the surimi can be configured as required.

4. The present invention makes centrifugal dehydration more thorough through two decanter centrifugation processes, which can reduce multiple “filtration-rehydration” processes, and the rotary sieve, the first built-in nozzle rotary sieve, and the decanter decanter centrifuge are used. After the water is collected, it is pumped to the corresponding previous water use process or the meat harvesting process. Compared with the traditional static rinsing, multi-channel rinsing, and dehydration methods, this method can save a lot of water consumption, and can reduce filtration, reprocessing. Water steps, reduce the number of equipment used and equipment footprint.

5. The present invention has two functions of rinsing and rehydration at the same time through the built-in sprinkler rotating screen, and the fish meat is rinsed from the rotating drum of the rotating screen by setting an external sprinkler head, and the built-in sprinkler head is set to rehydrate the fish meat, and It plays the role of continuous scouring and rinsing of the fish in the rotating drum.

Description of drawings

Fig. 1 is the process flow diagram of the continuous surimi production line mentioned in the present invention.

Figure 2 is a side view of the continuous soaking tank mentioned in the present invention.

FIG. 3 is a side view of the rotary screen with built-in nozzles mentioned in the present invention.

The name of each part in the picture: 1-1—fish meat solids inlet; 1-2—floating ball inlet valve; 1-3—microbubble air pipe; 1-4—stirring paddle; 1-5—oil separator; 1 -6—deflector; 1-7—slick oil scraper; 1-8—U-shaped oil receiving tank; 1-9—fish meat slurry outlet; 1-10—fish meat slurry; 2-1—feeding port; 2-2—drive motor; 2-3—drive gear; 2-4—pressure-resistant soft water pipe; 2-5—rotating screen cover; 2-6—external sprinkler head; 2-7—internal sprinkler head; 2-8—built-in spray main water pipe; 2-9—discharge port; 2-10—rotating holder; 2-11—spraying water drain; 2-12—rotating drum of rotary screen.

Detailed ways

The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

Example 1:

This embodiment provides a continuous surimi production system, as shown in FIG. 1 , the system includes a fish meat harvester, a first decanter centrifuge, a continuous soaking tank, a rotary screen, a first Built-in nozzle rotary screen, second decanter centrifuge, post-processing equipment;

The fish meat harvester is used to separate the bone spurs and the skin of the fish meat pieces to obtain an aqueous solution of the fish meat; the first decanter centrifuge is used to remove water-soluble substances and blood water from the aqueous solution of the fish meat to obtain the fish meat solids; The continuous soaking tank is used to remove the grease in the solid fish meat; the rotary screen is used to pre-dehydrate the fish meat after degreasing; the first built-in nozzle rotary screen is used to rinse the pre-dehydrated fish meat The second decanter centrifuge is used to remove moisture from the fish after rinsing; the post-processing equipment includes: chopping equipment, filling equipment, and quick-freezing equipment; the chopping equipment is used for chopping the fish. Mixed into minced fish, the filling equipment is used for packaging the minced fish meat, and the quick-freezing device is used for freezing the packaged minced fish.

In this embodiment, the transfer of fish meat material between two connected devices in the generation system is divided into two types: solid-liquid mixed state and solid state. The material in solid-liquid state can connect the fish meat material of the upper equipment to a temporary state. In the storage barrel, the pump is transported to the next equipment, and the solid state material can be transported from the outlet of the previous equipment to the inlet of the next equipment by means of screws; in addition to the above transfer methods, the height difference can also be used to achieve the The exit of one equipment is above the entrance of the next equipment, and it is transferred by direct drop. In the actual production process, it will be considered according to various factors such as site, sanitation, convenience, and cost.

Further, the fish meat harvester can be a recoil type meat harvester, the decanter centrifuge can be a single-head decanter centrifuge with an aspect ratio of 2.0 or 2.5 or 3.5, and the chopping and mixing equipment It can be a 330 chopping mixer, and the quick-freezing equipment can be a 2-ton flat-plate quick-freezing machine.

Further, the second decanter centrifuge is connected to the second built-in nozzle rotary screen and the third decanter centrifuge to further rinse and dehydrate the fish meat dehydrated by the second decanter centrifuge.

Further, the number of built-in nozzle rotary sieves and decanter centrifuges is increased after the second decanter centrifuge according to the quality of the surimi production. The surimi quality includes but is not limited to surimi elasticity, whiteness .

Further, the rotary screen, the first built-in nozzle rotary screen, and the second decanter centrifuge are connected to a water tank, the water tank is connected to a water pump, and the water pump is connected to a fish meat harvester, a continuous soaking tank, a rotary screen, The first built-in nozzle rotary screen and the second decanter centrifuge are connected; the water tank is used to collect the water used by the rotary screen, the first built-in nozzle rotary screen, and the second decanter centrifuge, and pump it To fish meat harvester and/or continuous soaking tank and/or rotary screen and/or first built-in sprinkler rotary screen and/or second decanter centrifuge.

Further, as shown in Figure 2, the continuous soaking tank includes: fish meat solids inlet 1-1, floating ball inlet valve 1-2, microbubble air pipe 1-3, stirring paddle 1-4, oil separator Plate 1-5, deflector 1-6, oil floating scraper 1-7, U-shaped oil receiving tank 1-8, fish pulp outlet 1-9, fish pulp 1-10;

The fish meat solids feeding port 1-1 is arranged on the upper part of one side of the continuous soaking tank, the floating ball inlet valve 1-2 is positioned below the fish meat solids feeding port 1-1, and the stirring paddle 1 -4 is located on one side of the fish meat solids inlet 1-1, the microbubble gas pipe 1-3 is located on the bottom of one side of the continuous soaking tank, the oil separator 1-5, the baffle 1-6 They are arranged on one side of the stirring paddles 1-4 in turn; the oil slick scraper 1-7 and the fish pulp outlet 1-9 are respectively arranged on the top and bottom of the other side of the continuous soaking tank, and the U-shaped connection The oil tank 1-8 is arranged below the side adjacent to the oil slick scraper 1-7;

The stirring paddles 1-4 are used to disperse the fish meat solids with less water after centrifugation, so as to be easy to be fully mixed with water;

The floating ball inlet valve 1-2 is used to replenish the water source and control the liquid level to the continuous soaking tank through the opening and closing of the floating ball inlet valve;

The installation method of the oil separators 1-5 is that the lower end is suspended, 10-20cm from the bottom of the soaking tank, and the upper end exceeds the maximum water level allowed by the continuous soaking tank; it is used to prevent the fish that has just entered directly into the right side of the soaking tank, Force the mixture of fish and water to move to the right side of the soaking tank through deflector 1-6. After that, the water body is calmed down, which is convenient for further separation of fish meat and oil.

The interval between the deflector 1-6 and the oil separator 1-5 is 20-30cm, the lower end of the deflector 1-6 is connected to the bottom of the continuous soaking tank, and the height of the deflector 1-6 is It is 40-50cm; it is used to guide the mixture of fish and water into the right soaking tank according to the setting;

The bottom of the continuous soaking tank is set on a slope, and the bottom surface of the soaking tank on the side close to the fish pulp discharge port 1-9 is lower, and the slope of the slope is not less than 10°, and the soaking tank is located at the fish pulp discharge port 1-9. The bottom of the side in the lateral direction of the soaking tank is a "U"-shaped structure with high sides and a low middle. Row;

The oil slick scraper 1-7 includes: a transmission chain, an oil scraper, and a transmission chain drive motor. The oil scraper is arranged on the transmission chain at intervals, and the transmission chain driving motor drives the transmission chain to drive the oil scraper in the fish water. Circulating movement of liquid level;

The U-shaped oil receiving grooves 1-8 are connected to the continuous soaking tank through the inclined plate, and the inclined plate is used to cooperate with the action of the oil scraper to ensure that the oil layer on the water surface is slowly scraped to the edge, so as to enter the U-shaped oil receiving groove. Within 1-8;

The micro-bubble gas pipe 1-3 is connected with the air curtain pump arranged on the outer side of the continuous soaking tank, and the micro-bubble gas pipe 1-3 is provided with a plurality of air curtain spray pipes, Air and water combine to form bubbles;

The principle of the continuous soaking tank is as follows: the fish meat solids obtained after dehydration by the first decanter centrifuge enter the continuous soaking tank from the fish meat solids inlet 1-1, and the centrifugal After the fish meat solids with less water are dispersed, it is easy to be fully mixed with water; the microbubble trachea 1-3 continuously generates tiny air bubbles, and the oil adheres to the air bubbles, and floats to the water surface of the fish meat as the bubbles rise. ; Driven by the drive motor and transmission chain of the oil scraper, the oil scraper scrapes the oil bubbles into the U-shaped oil receiving grooves 1-8, so as to repeatedly remove the oil from the fish water; then, the fish water passes through the deflector 1. -6 Move to the right side of the soaking tank, and the degreasing fish pulp 1-10 is mixed with water and discharged from the fish pulp discharge port 1-9.

Further, as shown in FIG. 3 , the built-in nozzle rotary screen includes: a feeding port 2-1, a driving motor 2-2, a driving gear 2-3, a pressure-resistant soft water pipe 2-4, and a rotary screen cover 2-5 , External sprinkler head 2-6, built-in sprinkler head 2-7, built-in sprinkler main water pipe 2-8, discharge port 2-9, rotary support 2-10, spray water drain port 2-11, rotary Screen rotary drum 2-12, rack;

The rotary screen rotary drum 2-12 is arranged in the rotary screen outer cover 2-5, and the rotary screen outer cover 2-5 is provided on the frame. The rotary screen rotary drum 2-12 is a hollow cylindrical structure, and one end is provided with a gear , and is connected to the drive gear 2-3 arranged below the gear, the drive gear 2-3 is connected to the drive motor 2-2, and the outer wall of the rotary screen rotary drum 2-12 is provided with mesh screen holes; the rotary support 2-10 It is set below the other end of the rotary screen rotary drum 2-12, and the rotary drum body is held up so that the drum body rotates on the rotary support.

The pressure-resistant soft water pipe 2-4 is divided into two paths, one is the built-in spray main water pipe 2-8, and the built-in spray main water pipe 2-8 passes through both ends of the rotary screen rotary drum 2-12. The spray main water pipe 2-8 is provided with a plurality of built-in spray heads 2-7; the other is an external spray main water pipe; the external spray main water pipe is located in the rotary screen rotary drum 2-12 and fixed On the rotary screen cover 2-5, a plurality of external spray heads 2-6 are arranged on the external spray main water pipe;

The feeding port 2-1 is set at one end of the rotary screen rotating barrel 2-12, and the discharging port 2-9 is set at the other end of the rotary screen rotating barrel 2-12;

The external sprinkler head 2-6 is used to wash the fish meat from the mesh screen of the rotary screen rotary drum 2-12, and the built-in sprinkler head 2-7 is used to rehydrate the fish meat, and plays a role in counteracting the rotation. The fish meat in the cylinder is continuously washed and rinsed.

The rotary screen rotating barrel 2-12 has an inclination angle, so that the height of the feed port 2-1 is higher than the height of the discharge port 2-9;

The principle of the built-in sprinkler rotary screen is: the fish meat after degreasing treatment enters from the feed port 2-1, the rotary screen rotary drum 2-12 is continuously rotated by the drive motor 2-2, and the built-in sprinkler head 2 -7 Rehydrate the fish, wash and rinse the fish, and the external sprinkler 2-6 rinses the fish from the screen of the rotary screen rotary drum 2-12, and the rotating drum screen ensures that the screen holes will not be damaged. Blocked, and finally the fish meat after rinsing is discharged from the discharge port 2-9.

Embodiment 2:

Utilize the continuous surimi production system to carry out the surimi processing method for the seawater trash fish whose specifications are 400g-800g/tail, and the method includes:

Step 1: After the fish meat pieces are processed by a fish meat meat harvester to separate the bone spurs and the fish skins, an aqueous solution containing fish meat is obtained;

Step 2: dewatering the aqueous solution containing fish meat through the first decanter centrifuge, the first decanter centrifuge adopts a single-head decanter centrifuge with an aspect ratio of 2.5 to obtain a moisture content of 80%- 85% fish solids;

Step 3: by removing the grease in the solid fish meat in the continuous soaking tank, the distance between the baffles 1-6 and the oil separators 1-5 of the continuous soaking tank is set to be 25cm, and the height of the baffles 1-6 is 45cm; Control the flow time of the fish solids from the fish solids inlet 1-1 to the fish pulp discharge outlet 1-9 to be 15-20min;

Step 4: Pre-dehydrate the fish pulp discharged from the fish pulp discharge ports 1-9 through the rotary screen, enter the first built-in sprinkler rotary screen, and use the built-in sprinkler heads 2-7 of the first built-in sprinkler rotary screen and the external sprinkler. The fish pulp is washed and continuously rinsed by shower heads 2-6, and then enters the second decanter centrifuge, which adopts a single-head decanter centrifuge with an aspect ratio of 3.5 to obtain moisture. The content of fish flesh is controlled at 78%-80%;

Step 5: After chopping, bagging and quick-freezing the fish flesh, the minced fish is obtained, and the water used by the rotary screen, the first built-in nozzle rotary screen and the second decanter centrifuge is collected, and pumped to the fish meat harvester. Meat machine use.

Embodiment three:

Utilize continuous surimi production system to carry out surimi processing method for silver carp with a specification of 1000g-1500g/tail, and the method includes:

Step 1: After the fish meat pieces are processed by a fish meat meat harvester to separate the bone spurs and the fish skins, an aqueous solution containing fish meat is obtained;

Step 2: dewatering the aqueous solution containing fish meat through the first decanter centrifuge, the first decanter centrifuge adopts a single-head decanter centrifuge with an aspect ratio of 3.5 to obtain a moisture content of 80%- 85% fish solids;

Step 3: by removing the grease in the solid fish meat in the continuous soaking tank, the distance between the guide plates 1-6 and the oil separators 1-5 of the continuous soaking tank is set to be 30cm, and the height of the guide plates 1-6 is 40cm; Control the flow time of the fish solids from the fish solids inlet 1-1 to the fish pulp discharge outlet 1-9 to be 20-23min;

Step 4: Pre-dehydrate the fish pulp discharged from the fish pulp discharge ports 1-9 through the rotary screen, enter the first built-in sprinkler rotary screen, and use the built-in sprinkler heads 2-7 of the first built-in sprinkler rotary screen and the external sprinkler. The fish pulp is rinsed and continuously rinsed by the shower heads 2-6, and then enters the second decanter centrifuge, which adopts a single-head decanter centrifuge with an aspect ratio of 2.0 to obtain moisture. The content of fish flesh is controlled at 80%-85%;

Step 5: The fish flesh is added to the built-in nozzle rotary screen again for washing and continuous rinsing, and then centrifuged by a single-head decanter centrifuge with an aspect ratio of 3.5 to obtain fish flesh with a moisture content of 75%-78%, which is then chopped. After mixing, bagging and quick-freezing, AAA-grade surimi is obtained. The moisture in the built-in rotary screen is collected and pumped to the recoil meat harvester for spraying. The moisture generated by the second and third centrifuges is collected and pumped to Rotary screen with spray head for spraying.

The above enumeration is only a specific embodiment of the present invention, and is intended to show the technical points and positive effects of the patent of the present invention. The relevant adjustable size needs to be determined according to the specific conditions such as the fish species to be processed, specifications and different processing parameters before meat harvesting. , it does not limit the scope of implementation of the present invention, and methods directly derived from the disclosure of the present invention or obtained by association and deformation should be considered as the protection scope of the present invention.

Claims (10)

1. a continuous surimi production system, it is characterised in that the system comprises a fish meat harvester, the first decanter centrifuge, a continuous soaking tank, a rotary screen, the first built-in sprinkler rotary screen that are connected in sequence , the second decanter centrifuge, post-processing equipment; The fish meat harvester is used to separate the bone spurs and the skin of the fish meat pieces to obtain an aqueous solution of the fish meat; the first decanter centrifuge is used to remove water-soluble substances and blood water from the aqueous solution of the fish meat to obtain the fish meat solids; The continuous soaking tank is used to remove the grease in the solid fish meat; the rotary screen is used to pre-dehydrate the fish meat after degreasing; the first built-in nozzle rotary screen is used to rinse the pre-dehydrated fish meat The second decanter centrifuge is used to remove moisture from the fish after rinsing; the post-processing equipment includes: chopping equipment, filling equipment, and quick-freezing equipment; the chopping equipment is used for chopping the fish. Mixed into minced fish, the filling equipment is used for packaging the minced fish meat, and the quick-freezing device is used for freezing the packaged minced fish; The continuous soaking tank includes: a fish meat solids addition port, a floating ball inlet valve, a microbubble air pipe, a stirring paddle, an oil separator, a deflector, a floating oil scraper, a U-shaped oil receiving tank, and a fish pulp discharge port. , fish pulp; The fish meat solids inlet is arranged on the upper part of one side of the continuous immersion tank, the floating ball inlet valve is arranged near the bottom of the fish solids inlet, and the stirring paddle is arranged on one side of the fish solids inlet. The micro-bubble air pipe is arranged at the bottom of the fish meat solids inlet side of the continuous soaking tank, and the micro-bubble air pipe is connected with the air curtain pump arranged on the outer side of the continuous soaking tank. The oil separator and the deflector are arranged on one side of the stirring paddle in sequence; the oil slick scraper and the fish pulp outlet are respectively arranged on the upper part of the other side of the continuous soaking tank and the At the bottom, the U-shaped oil receiving groove is arranged below the side adjacent to the floating oil scraper, and the U-shaped oil receiving groove is connected to the continuous soaking tank through the inclined plate; the floating oil scraper includes: a transmission chain, a scraper The oil plate and the transmission chain drive the motor, the oil scraper is arranged on the transmission chain at intervals, and the transmission chain driving motor drives the transmission chain to drive the oil scraper to circulate up and down on the fish water liquid surface; The built-in sprinkler rotary screen includes: a feeding port, a drive motor, a drive gear, a pressure-resistant soft water pipe, a rotary screen cover, an external sprinkler head, a built-in sprinkler head, a built-in sprinkler main water pipe, a discharge port, a rotating bracket , spray water outlet, rotary screen rotary drum, rack; The rotary screen rotary drum is arranged in the rotary screen outer cover, and the rotary screen outer cover is provided on the frame. The rotary screen rotary drum is a hollow cylindrical structure, and one end is provided with a gear, and is connected to a drive gear arranged below the gear, so The drive gear is connected to the drive motor, and the outer wall of the rotary screen rotary drum is provided with mesh screen holes; the rotary support is arranged under the other end of the rotary screen rotary drum, and the rotary drum body is held up so that the drum body rotates on the rotary support ; The pressure-resistant soft water pipe is divided into two paths, one is the built-in spray main water pipe, the built-in spray main water pipe passes through the two ends of the rotary screen rotating drum, and the built-in spray main water pipe is provided with a plurality of built-in sprays. The other is an external main spray pipe; the external main spray pipe is located in the rotary screen rotary drum and fixed on the outer cover of the rotary screen, and the external main spray pipe is provided with a plurality of external spray pipes. set sprinkler head; The feeding port is set at one end of the rotating barrel of the rotary screen, and the discharging port is set at the other end of the rotary barrel of the rotary screen; high. 2. a kind of continuous surimi production system as claimed in claim 1 is characterized in that, the lower end of described oil separator is suspended in the air, 10-20cm away from the bottom of continuous soaking tank, and the upper end of described oil separator exceeds continuous soaking. The maximum water level allowed in the pool. 3. a kind of continuous surimi production system as claimed in claim 2, is characterized in that, the interval between described deflector and oil separator is 20-30cm, and the lower end of described deflector and the continuous immersion tank are separated. The bottom is connected, and the height of the deflector is 40-50cm. 4. a kind of continuous surimi production system as claimed in claim 3 is characterized in that, the bottom of described continuous soaking pond is set with slope, and the bottom surface of soaking pond near the fish pulp discharge port side is lower, and the bottom of described slope is lower. The slope is not less than 10°. 5. a kind of continuous surimi production system as claimed in claim 4 is characterized in that, the bottom of described soaking pond at the fish pulp discharge port side is in the lateral direction of soaking pond in the "U" with high on both sides and low in the middle. The fish pulp outlet is arranged at the lowest point of the "U"-shaped structure. 6. a kind of continuous surimi production system as claimed in claim 5 is characterized in that, according to the quality requirement of producing surimi, after described second decanter centrifuge, add built-in nozzle rotary screen, decanter centrifuge. The fish meat dehydrated by the second decanter centrifuge is further rinsed and dehydrated depending on the number of machines, and the quality of the surimi includes but is not limited to the elasticity and whiteness of the surimi. 7. A continuous surimi production system as claimed in claim 6, wherein the rotary screen, the first built-in nozzle rotary screen, the second decanter centrifuge are connected to a water tank, and the water tank is connected to a water pump The water pump is connected with the fish meat harvester, the continuous soaking tank, the rotary screen, the first built-in nozzle rotary screen, and the second decanter centrifuge; the water tank is used to collect the rotary screen, the first built-in nozzle Water used by rotary screen, second decanter centrifuge and pumped to fish meat harvester and/or continuous soaking tank and/or rotary screen and/or first built-in sprinkler rotary screen and/or second Used in decanter centrifuges. 8. a method utilizing the continuous surimi production system of any one of claims 1-7 to prepare surimi, wherein the method comprises: Step 1: After the fish meat pieces are processed by a fish meat meat harvester to separate the bone spurs and the fish skins, an aqueous solution containing fish meat is obtained; Step 2: dewatering the aqueous solution containing fish meat through the first decanter centrifuge to obtain fish meat solids; Step 3: By removing the grease in the solid fish meat in the continuous soaking tank, set the distance between the baffle plate and the oil separator and the height of the baffle plate in the continuous soaking tank according to the production weight specification; The flow time from the inlet to the outlet of the fish pulp; Step 4: Pre-dehydrate the fish pulp discharged from the fish pulp outlet through the rotary screen, enter the first built-in sprinkler rotary screen, and use the built-in sprinkler head and the external sprinkler head of the first built-in sprinkler rotary screen to dehydrate the fish pulp. Rinse and continuously rinse, and then enter the second decanter centrifuge to obtain fish flesh with a certain moisture content. According to the quality of surimi production, the fish flesh is then processed by one or more built-in nozzle rotary screens and decanter centrifuges. operation, further rinsing and dehydrating the fish meat after dehydration by the second decanter centrifuge; Step 5: After chopping, bagging and quick-freezing the fish flesh to obtain surimi, and collecting the water used by the rotary screen, the first built-in nozzle rotary screen, and the second decanter centrifuge, and pumping it to Fish meat harvester and/or continuous soaking tank and/or rotary screen and/or first built-in sprinkler rotary screen and/or second decanter centrifuge. 9 . The method for preparing surimi as claimed in claim 9 , wherein the water content of the fish meat solids is not less than 80%. 10 . 10. Application of the continuous surimi production system of any one of claims 1 to 7 and the method of any one of claims 8 to 9 in the field of surimi processing.

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