Shrimp meal processing system and method suitable for ocean fishing boats

Abstract

The invention relates to a shrimp meal processing method suitable for ocean fishing boats, which comprises the following steps: placing cleaned shrimps in a first-effect heating device, a second-effect heating device, a third-effect heating device and a fourth-effect heating device in sequence to realize cooking, dehydration treatment and drying of the shrimps, the working temperature of the first-effect heating equipment is more than the working temperature of the second-effect heating equipment and less than the working temperature of the third-effect heating equipment and less than the working temperature of the fourth-effect heating equipment; meanwhile, waste gas generated in the next stage of heating equipment is used as a heat source to be introduced into the heating equipment at the front end, and condensate water generated in the heating equipment is introduced into the fresh water preparation machine to prepare fresh water. The device has the beneficial effects that the shrimp powder is prepared in a multi-effect heating mode, the powder yield of the shrimp powder is improved, meanwhile, waste gas in the shrimp making process is fully utilized, the waste gas serves as a heat source for making shrimps to form condensed water, then the formed condensed water is used for preparing fresh water, the heat source is saved, meanwhile, the influence on the environment is reduced, and the source of the prepared fresh water is increased.

Description

Technical Field

[0001] The invention relates to the technical field of food processing, in particular to a shrimp powder processing system and method suitable for ocean-going fishing vessels. Background Art

[0002] Ocean-going fishing vessels refer to ships used for fishing operations in waters far from the continental shelf of their own coasts, or even in the high seas. These ships usually have the ability to operate for a long time in deep sea and in harsh sea conditions; and when fishing boats are operating at sea, the shrimps caught are the main raw materials for shrimp meal processing, including various marine shrimps, such as prawns, hawk claw shrimps, Antarctic krill, etc. The preparation process of shrimp meal includes steaming, dehydration, drying, crushing, etc. In this process, the steam generated by the steam system on the fishing boat is usually used as the main source of heat. Therefore, as Antarctic krill, which has a large processing volume (at least 800 tons per day), consumes the most steam sources. At the same time, a large amount of waste gas will be generated in the process of shrimp meal preparation. These waste gases are directly discharged, which seriously affects the air quality; in addition, the powder yield of shrimp meal prepared by the existing method is not high, and the quality needs to be improved. Summary of the invention

[0003] The present invention aims at the technical problems existing in the prior art and provides a shrimp meal processing system and method suitable for ocean-going fishing vessels. The heat of waste gas generated in the process of preparing shrimp meal is used as the heat source in the process of preparing shrimp meal, thereby reducing waste gas emissions and saving energy. At the same time, the generated waste gas can be used as a raw material for preparing fresh water.

[0004] The technical solution of the present invention to solve the above technical problems is as follows: The first aspect of the present invention is to protect a shrimp powder processing method suitable for ocean-going fishing vessels, comprising the following steps: The cleaned shrimps are placed in the first-effect heating equipment, the second-effect heating equipment, the third-effect heating equipment, and the fourth-effect heating equipment in sequence to achieve steaming, dehydration and drying of the shrimps, and the working temperature of the first-effect heating equipment is less than the working temperature of the second-effect heating equipment, less than the working temperature of the third-effect heating equipment, and less than the working temperature of the fourth-effect heating equipment; At the same time, the exhaust gas generated in the latter stage heating equipment is used as a heat source to be introduced into each heating equipment at the front end, and the condensed water generated in each heating equipment is introduced into the fresh water preparation machine to prepare fresh water.

[0005] As a further technical solution, the first-effect heating equipment and the second-effect heating equipment are both cooking equipment, the third-effect heating equipment is dehydration equipment, and the fourth-effect heating equipment is drying equipment.

[0006] As a further technical solution, each of the first-effect heating device, the second-effect heating device, the third-effect heating device, and the fourth-effect heating device adopts a gradient heating method for heating.

[0007] As a further technical solution, the temperature difference between the starting temperature and the ending temperature in the first-effect heating equipment is 20°C, the temperature difference between the starting temperature and the ending temperature in the second-effect heating equipment is 25°C, the temperature difference between the starting temperature and the ending temperature in the third-effect heating equipment is 20°C, and the temperature difference between the starting temperature and the ending temperature in the fourth-effect heating equipment is 30°C.

[0008] As a further technical solution, the heating time in the single-effect heating device, the double-effect heating device, the triple-effect heating device, and the quadruple-effect heating device are 2.5-3.5 minutes, 4.5-5.5 minutes, 5.5-6.5 minutes, and 5.5-6.5 minutes, respectively.

[0009] As a further technical solution, after the steam generated by the steam system on the fishing boat is used as a heat source to heat the first-effect heating equipment, the shrimps therein are placed in the second-effect heating equipment for heating, and so on until the first-effect heating equipment, the second-effect heating equipment, the third-effect heating equipment, and the fourth-effect heating equipment are all filled with shrimps to be processed. At this time, the heat source of the first-effect heating equipment is provided by at least one of the second-effect heating equipment, the third-effect heating equipment, and the fourth-effect heating equipment, the heat source of the second-effect heating equipment is provided by at least one of the third-effect heating equipment and the fourth-effect heating equipment, and the heat sources of the third-effect heating equipment and the fourth-effect heating equipment are all provided by the steam generated by the steam system on the fishing boat.

[0010] As a further technical solution, the starting temperature of the first-effect heating equipment is 15°C, the starting temperature of the second-effect heating equipment is 35°C, the starting temperature of the third-effect heating equipment is 60°C, and the starting temperature of the fourth-effect heating equipment is 80°C.

[0011] The second aspect of the present invention protects a shrimp powder processing system suitable for ocean-going fishing vessels, including a first-effect heating device, a second-effect heating device, a third-effect heating device, a fourth-effect heating device, an exhaust gas conveying pipe fitting, and a condensed water pipe fitting; The steam of the steam system on the fishing vessel is connected to the steam inlet of the first-effect heating device, the second-effect heating device, the third-effect heating device, and the fourth-effect heating device respectively through the steam pipeline; The exhaust gas outlets of the second-effect heating equipment, the third-effect heating equipment, and the fourth-effect heating equipment are connected to the exhaust gas inlet of the front-end heating equipment through the exhaust gas conveying pipe fittings; the condensate water outlets of the first-effect heating equipment, the second-effect heating equipment, the third-effect heating equipment, and the fourth-effect heating equipment are converged through the condensate water pipe fittings to pass into the fresh water preparation machine.

[0012] As a further technical solution, the steam pipelines connected to the first-effect heating equipment, the second-effect heating equipment, the third-effect heating equipment, and the fourth-effect heating equipment are respectively provided with a first valve, a second valve, a third valve, and a fourth valve for controlling steam input.

[0013] As a further technical solution, a fifth valve is provided on the exhaust gas pipeline connecting the triple-effect heating device and the double-effect heating device, and a sixth valve is provided on the exhaust gas pipeline connecting the double-effect heating device and the single-effect heating device, for controlling the exhaust gas input. The beneficial effects of the present invention are: 1. In the shrimp powder processing method of the present invention, shrimp powder is prepared by a multi-effect heating method, which improves the powder yield of shrimp powder. At the same time, the waste gas in the shrimp production process is fully utilized. The waste gas is first used as a heat source for shrimp production to form condensed water, and then the formed condensed water is used to prepare fresh water. While saving heat sources, the impact on the environment is reduced, and the source of fresh water preparation is increased; in addition, the temperature gradient method is used to prepare shrimp powder in the present application, which improves the quality of shrimp powder. For example, the powder yield can be increased by at least 10%, the astaxanthin content can be increased by at least 5%, and the omega-3 content can be increased by at least 3%; 2. The shrimp powder processing system of the present invention can realize the double utilization of waste gas in the shrimp production process through simple structural connection, and forms a new way to produce fresh water, which is energy-saving and environmentally friendly; In addition, the system is easy to control, flexible and effective. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The present invention is a schematic structural diagram of a shrimp meal processing system suitable for ocean-going fishing vessels.

[0015] In the accompanying drawings, the components represented by the reference numerals are listed as follows: Single-effect heating equipment 1, double-effect heating equipment 2, triple-effect heating equipment 3, quadruple-effect heating equipment 4; Exhaust gas delivery pipe 5, a first delivery pipeline 51, a second delivery pipeline 52, a third delivery pipeline 53, a first branch 54, a second branch 55, a third branch 56, and a pump 57; Condensate pipe 6, condensate main line 61, condensate branch line 62; Steam pipe 7, deodorization device 8, fresh water preparation machine 9. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0017] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise clearly and specifically defined.

[0018] In the description of the present application, the term "for example" is used to mean "used as an example, illustration or description". Any embodiment described as "for example" in the present application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is given to enable any technician in the field to implement and use the present invention. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the present invention can be implemented without using these specific details. In other examples, well-known structures and processes will not be elaborated in detail to avoid unnecessary details to obscure the description of the present invention. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in the present application.

[0019] Example 1 In order to reduce environmental pollution, save energy and improve the quality of shrimp meal, the present embodiment provides a shrimp meal processing method suitable for ocean-going fishing vessels. The shrimp is, for example, krill. The method specifically includes the following steps: placing the washed shrimp in a first-effect heating device 1, a second-effect heating device 2, a third-effect heating device 3, and a fourth-effect heating device 4 in sequence to achieve steaming, dehydration and drying of the shrimp, and the working temperature of the first-effect heating device 1 is less than the working temperature of the second-effect heating device 2, less than the working temperature of the third-effect heating device 3, and less than the working temperature of the fourth-effect heating device 4. At the same time, the exhaust gas generated in the latter stage of heating equipment is used as a heat source to be passed into each heating device at the front end, and the condensed water generated in each heating device is passed into a fresh water preparation machine to prepare fresh water.

[0020] This embodiment uses a multi-effect heating method to prepare shrimp meal, and reduces the loss of astaxanthin while drying out the moisture in the shrimp in the first-effect heating device 1 and the second-effect heating device 2 stages; in addition, the exhaust gas generated in the process of preparing shrimp meal is reused as the heat source required in the process of preparing shrimp meal, thereby reducing energy consumption, and in the process, the exhaust gas is condensed to produce condensed water, and the condensed water is then used to prepare fresh water, thereby increasing the source of fresh water on the ocean-going fishing vessel.

[0021] In the specific implementation process, the first-effect heating device 1 and the second-effect heating device 2 are both cooking devices, the third-effect heating device 3 is a dehydration treatment device, and the fourth-effect heating device 4 is a drying treatment device.

[0022] For example, the first-effect heating device 1 and the second-effect heating device 2 can both be steamers, that is, after the shrimp is preliminarily steamed by the first-effect heating device 1, the shrimp is finally steamed by the second-effect heating device 2 to completely eliminate the bacteria, viruses, parasites, etc. in the shrimp, while stabilizing the ingredients of the shrimp meat and extending the shelf life of the shrimp meat; the third-effect heating device 3 can be a hot air dryer, which blows hot air into the shrimp to vaporize the moisture in the shrimp and then takes it away by the hot air, thereby avoiding excessive drying of the shrimp surface and poor internal moisture migration; the fourth-effect heating device 4 can be a vacuum dryer, which is heated by a heat source to vaporize and draw away the moisture in the shrimp, so as to well retain the heat-sensitive nutrients in the shrimp, such as astaxanthin, enzymes, etc.

[0023] In the specific implementation process, in order to improve the powder yield, the first-effect heating device 1, the second-effect heating device 2, the third-effect heating device 3, and the fourth-effect heating device 4 all adopt a gradient heating method. That is, there is a temperature difference between the inlet temperature and the outlet temperature in each heating device, which can effectively sterilize the shrimp meat while fully dehydrating it and reduce the loss of shrimp meat.

[0024] For example, the temperature difference between the starting temperature and the ending temperature in the first-effect heating device 1 is 20°C, the temperature difference between the starting temperature and the ending temperature in the second-effect heating device 2 is 25°C, the temperature difference between the starting temperature and the ending temperature in the third-effect heating device 3 is 20°C, and the temperature difference between the starting temperature and the ending temperature in the fourth-effect heating device 4 is 30°C. Further, the heating time in the first-effect heating device 1, the second-effect heating device 2, the third-effect heating device 3, and the fourth-effect heating device 4 is 2.5-3.5 minutes, 4.5-5.5 minutes, 5.5-6.5 minutes, and 5.5-6.5 minutes, respectively.

[0025] For example, the starting temperature of the single-effect heating device 1 is 15°C, the ending temperature is 35°C, and the working time is 3 minutes; the starting temperature of the double-effect heating device 2 is 35°C, the ending temperature is 60°C, and the working time is 5 minutes; the starting temperature of the triple-effect heating device 3 is 60°C, the ending temperature is 80°C, and the working time is 6 minutes; the starting temperature of the quadruple-effect heating device 4 is 80°C, the ending temperature is 110°C, and the working time is 6 minutes.

[0026] It should be noted that after the steam generated by the steam system on the fishing boat is used as a heat source to heat the first-effect heating equipment 1, the shrimps therein are placed in the second-effect heating equipment 2 for heating, and so on until the shrimps to be processed are placed in the first-effect heating equipment 1, the second-effect heating equipment 2, the third-effect heating equipment 3, and the fourth-effect heating equipment 4. At this time, the heat source of the first-effect heating equipment 1 is provided by at least one of the second-effect heating equipment 2, the third-effect heating equipment 3, and the fourth-effect heating equipment 4, the heat source of the second-effect heating equipment 2 is provided by at least one of the third-effect heating equipment 3 and the fourth-effect heating equipment 4, and the heat sources of the third-effect heating equipment 3 and the fourth-effect heating equipment 4 are all provided by the steam generated by the steam system on the fishing boat.

[0027] This method can effectively utilize the waste gas generated by each heating device during the shrimp powder preparation process and use it as a heat source for the heating device, reducing the use of steam and reducing the generation of waste gas in the traditional shrimp production process, thereby reducing the impact on the environment. In addition, the waste gas is used as a heat source for each heating device to generate condensed water, which is then used as a raw material for preparing fresh water, realizing the preparation of fresh water from waste gas and further improving the utilization efficiency of waste gas.

[0028] The shrimp meat processed in this embodiment can enter the next processing process, for example, a crushing process, to obtain shrimp powder.

[0029] Example 2 Provide a shrimp meal processing system suitable for ocean-going fishing vessels, see Figure 1 , including a first-effect heating device 1, a second-effect heating device 2, a third-effect heating device 3, a fourth-effect heating device 4, an exhaust gas conveying pipe 5, and a condensed water pipe 6; The steam of the steam system on the fishing boat is connected to the steam inlets of the first-effect heating device 1, the second-effect heating device 2, the third-effect heating device 3, and the fourth-effect heating device 4 through the steam pipe 7, so as to introduce steam to provide a heat source for making shrimp powder; The exhaust gas outlets of the second-effect heating equipment 2, the third-effect heating equipment 3, and the fourth-effect heating equipment 4 are connected to the exhaust gas inlet of the front-end heating equipment through the exhaust gas conveying pipe 5, that is, the high-temperature exhaust gas generated at the rear end is used as the heat source required for the front-end processing, thereby avoiding the exhaust gas from being directly discharged into the atmosphere and affecting the air quality, while turning waste into treasure and saving heat sources; the condensed water outlets of the first-effect heating equipment 1, the second-effect heating equipment 2, the third-effect heating equipment 3, and the fourth-effect heating equipment 4 are converged through the condensed water pipe 6 to pass into the fresh water preparation machine, so that the exhaust gas is first used as a heat source for shrimp powder processing, and in the process becomes condensed water as a raw material for preparing fresh water, thereby realizing the effective utilization of the exhaust gas twice in the shrimp powder processing process, and the system has a simple structure and is easy to operate.

[0030] In the specific implementation process, the steam pipeline 7 connected to the first-effect heating equipment 1, the second-effect heating equipment 2, the third-effect heating equipment 3, and the fourth-effect heating equipment 4 is respectively provided with a first valve S1, a second valve S2, a third valve S3, and a fourth valve S4 for controlling the steam input; it should be noted that in the initial stage, the steam enters the first valve and the second valve, and in the later stage, the steam directly enters the third valve and the fourth valve, and at this time, the heat source required by the first-effect heating equipment 1 and the second-effect heating equipment 2 is provided by at least one of the three-effect heating equipment 3 and the four-effect heating equipment 4 at the rear end.

[0031] In the specific implementation process, a fifth valve S5 is provided on the exhaust gas pipeline connecting the triple-effect heating device 3 with the double-effect heating device 2, and a sixth valve S6 is provided on the exhaust gas pipeline connecting the double-effect heating device 2 with the single-effect heating device 1, for controlling the exhaust gas input.

[0032] It can be explained that the rear end of the four-effect heating device 4 is connected to a crusher for obtaining shrimp powder. The rear end of the condensed water pipe 6 is connected to the fresh water preparation machine 9 through the deodorizing device 8, so that the condensed water is deodorized by the deodorizing device 8 and then transported to the fresh water preparation machine 9 to prepare fresh water.

[0033] Further, the exhaust gas conveying pipe 5 includes a first conveying pipeline 51, a second conveying pipeline 52, a third conveying pipeline 53, a first branch 54, a second branch 55, and a third branch 56. The air inlet end and the air outlet end of the first conveying pipeline 51 are respectively connected to the air outlet end of the four-effect heating device 4 and the air inlet end of the one-effect heating device 1. The first conveying pipeline 51 is connected with the first branch 54 and the second branch 55, and the air outlet end of the first branch 54 and the air outlet end of the second branch 55 are respectively connected to the air inlet end of the three-effect heating device 3 and the air inlet end of the two-effect heating device 2, so that the exhaust gas from the four-effect heating device 4 can be input into the three-effect heating device 3, the two-effect heating device 2, and the one-effect heating device 1; The air inlet end of the second delivery pipeline 52 is connected to the air outlet end of the three-effect heating device 3, and the air outlet end is connected to the air inlet end of the two-effect heating device 2; the third branch 56 is connected to the second delivery pipeline 52, and the air outlet end of the third branch 56 is connected to the first delivery pipeline 51, so that the exhaust gas from the three-effect heating device 3 can be input to the two-effect heating device 2 and the one-effect heating device 1; The air inlet end of the third delivery pipeline 53 is connected to the air outlet end of the second-effect heating device 2, and the air outlet end is connected to the air inlet end of the single-effect heating device 1. It can be explained that the air outlet end of the third delivery pipeline 53 can be directly connected to the output side of the first delivery pipeline 51 to simplify the structure and save cost and space.

[0034] It can be explained that the fifth valve and the sixth valve are respectively arranged in the second delivery pipeline 52 and the third delivery pipeline 53 to control the entry of exhaust gas into the second-effect heating device 2 and the first-effect heating device 1, that is, whether to open the fifth valve and the sixth valve is selected according to needs.

[0035] The first valve, the second valve, the third valve, the fourth valve, the fifth valve and the sixth valve are all flow control valves. The first delivery pipeline 51, the second delivery pipeline 52 and the third delivery pipeline 53 are all provided with a pump 57 for pumping the exhaust gas into other heating equipment.

[0036] The condensate pipe 6 includes a condensate main path 61 and a condensate branch path 62 connected to the condensate main path 61. The first-effect heating device 1, the second-effect heating device 2, the third-effect heating device 3, and the fourth-effect heating device 4 are each provided with a condensate branch path 62 to gather the condensate generated in each heating device to the condensate main path 61, and then pass the deodorization device 8 to remove ozone in the condensate and then pass it into the fresh water preparation machine 9 to prepare fresh water.

[0037] This system works like this: 1. During the initial operation, cleaned shrimps are placed in the first-effect heating device 1, and S1 is turned on, while S2, S3, S4, S5, and S6 are turned off. Steam is introduced into the first-effect heating device 1 to heat and sterilize the shrimps therein. For example, the first-effect heating device 1 starts working when the temperature reaches 15°C, and the time required for the temperature to gradually rise to 35°C is controlled to be 3 minutes, and then stops working; the system is turned off, and the shrimps processed by the first-effect heating device 1 are placed in the second-effect heating device 2; 2. Put the washed shrimps back into the first-effect heating device 1. At this time, close S1, S3, S4, and S5, and open S2 and S6 to allow steam to enter the second-effect heating device 2. At the same time, use the exhaust gas generated in the second-effect heating device 2 to pass into the first-effect heating device 1 as a heat source for the first-effect heating device 1. For example, when the temperature in the second-effect heating device 2 reaches 35°C, it starts to work, and the time required for gradually heating to 60°C is controlled to be 5 minutes. During this process, S6 is turned on, so that when the temperature in the first-effect heating device 1 reaches 15°C, it starts to work, and the time required for gradually heating to 35°C is controlled to be 3 minutes, and then stops working (therefore, at this time, the time required for the exhaust gas to enter the first-effect heating device 1 to reach 35°C cannot exceed 2 minutes); close the system, place the shrimps in the second-effect heating device 2 in the third-effect heating device 3, transfer the shrimps in the first-effect heating device 1 to the second-effect heating device 2, and put the washed shrimps back into the first-effect heating device 1; 3. Close S1, S2, and S4, and open S3, S5, and S6, so that steam enters the triple-effect heating device 3, and at the same time, the exhaust gas generated during the operation of the triple-effect heating device 3 is respectively introduced into the single-effect heating device 1 and the double-effect heating device 2, and the exhaust gas generated during the operation of the double-effect heating device 2 can also be introduced into the single-effect heating device 1; for example, when the temperature in the triple-effect heating device 3 reaches 60°C, the operation starts, and the time required for the temperature to gradually rise to 80°C is controlled to be 6 minutes, and when the temperatures in the double-effect heating device 2 and the single-effect heating device 1 both reach the conditions described in 2 above, the operation starts, and the working time is as described in the corresponding places of 1 and 2 above; 4. Place the shrimps after the above 3 treatments in the next heating device in turn, for example, the shrimps in the triple-effect heating device 3 are placed in the quadruple-effect heating device 4, the shrimps in the double-effect heating device 2 are placed in the triple-effect heating device 3, the shrimps in the single-effect heating device 1 are added to the double-effect heating device 2, and the single-effect heating device 1 is re-placed with washed shrimps; Close S1 and S2, and open S3 and S4. At this time, S5 and S6 are opened or their opening sizes are adjusted as needed, so that the first-effect heating equipment 1, the second-effect heating equipment 2, and the third-effect heating equipment 3 are all started and working. At the same time, the exhaust gas in the second-effect heating equipment 2, the third-effect heating equipment 3, and the fourth-effect heating equipment 4 is fully utilized as a heat source to form condensed water, which is then deodorized and used as a raw material for preparing fresh water.

[0038] In the shrimp powder processing process, the exhaust gas from the second-effect heating equipment 2, the third-effect heating equipment 3, and the fourth-effect heating equipment 4 is first used as a heat source to form condensed water, which is then prepared into fresh water, thus turning waste into treasure, reducing the impact of exhaust gas on the environment, saving resources, and increasing the source of fresh water on fishing vessels.

[0039] It can be explained that the first-effect heating device 1 and the second-effect heating device 2 in this system can be cooking devices, for example, they can both be steamers; the third-effect heating device 3 is a dehydration treatment device, for example, it can be a separator; the fourth-effect heating device 4 is a drying treatment device, for example, it can be a vacuum dryer. (It should be noted that its specific functions are as described in Example 1, so it will not be repeated); the first-effect heating device 1 and the second-effect heating device 2 are steamers, which use excess exhaust gas to grade and cook the raw shrimps, which can save about 30% of energy consumption; the third-effect heating device 3 (separator) can dry and remove excess water and oil in the raw shrimps after being treated by the second-effect heating device. These oils can be stored in containers as shrimp meal by-products, and the by-products can be reused as fish feed after the ship arrives at the port; The four-effect heating equipment 4 (vacuum dryer) can ensure that the shrimp powder is isolated from oxygen, avoid oxidation at high temperature, and effectively retain nutrients such as astaxanthin and omega-3.

[0040] It should be noted that in the above embodiments, the description of each embodiment has its own emphasis, and for parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0041] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0042] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A shrimp powder processing method suitable for ocean-going fishing vessels, characterized in that: The steps include: The cleaned shrimps are sequentially placed in a first-effect heating device (1), a second-effect heating device (2), a third-effect heating device (3), and a fourth-effect heating device (4) to achieve steaming, dehydration, and drying of the shrimps, and the working temperature of the first-effect heating device (1) is less than the working temperature of the second-effect heating device (2) is less than the working temperature of the third-effect heating device (3) is less than the working temperature of the fourth-effect heating device (4); At the same time, the exhaust gas generated in the latter stage heating equipment is used as a heat source to be introduced into each heating equipment at the front end, and the condensed water generated in each heating equipment is introduced into the fresh water preparation machine (9) to prepare fresh water.

2. The shrimp powder processing method according to claim 1, characterized in that: The first-effect heating device (1) and the second-effect heating device (2) are both cooking devices, the third-effect heating device (3) is a dehydration treatment device, and the fourth-effect heating device (4) is a drying treatment device.

3. The shrimp powder processing method according to claim 1, characterized in that: The first-effect heating device (1), the second-effect heating device (2), the third-effect heating device (3), and the fourth-effect heating device (4) all adopt a gradient heating method for heating.

4. The shrimp powder processing method according to claim 3, characterized in that: The temperature difference between the starting temperature and the ending temperature in the first-effect heating device (1) is 20°C, the temperature difference between the starting temperature and the ending temperature in the second-effect heating device (2) is 25°C, the temperature difference between the starting temperature and the ending temperature in the third-effect heating device (3) is 20°C, and the temperature difference between the starting temperature and the ending temperature in the fourth-effect heating device (4) is 30°C.

5. The shrimp powder processing method according to claim 4, characterized in that: The heating times of the single-effect heating device (1), the double-effect heating device (2), the triple-effect heating device (3), and the quadruple-effect heating device (4) are 2.5-3.5 minutes, 4.5-5.5 minutes, 5.5-6.5 minutes, and 5.5-6.5 minutes, respectively.

6. The shrimp powder processing method according to claim 1, characterized in that: After the steam generated by the steam system on the fishing boat is used as a heat source to heat the first-effect heating device (1), the shrimp therein is placed in the second-effect heating device (2) for heating, and so on until the shrimp to be processed are placed in the first-effect heating device (1), the second-effect heating device (2), the third-effect heating device (3), and the fourth-effect heating device (4). At this time, the heat source of the first-effect heating device (1) is provided by at least one of the second-effect heating device (2), the third-effect heating device (3), and the fourth-effect heating device (4), the heat source of the second-effect heating device (2) is provided by at least one of the third-effect heating device (3) and the fourth-effect heating device (4), and the heat sources of the third-effect heating device (3) and the fourth-effect heating device (4) are all provided by the steam generated by the steam system on the fishing boat.

7. The shrimp powder processing method according to claim 1, characterized in that: The starting temperature of the first-effect heating device (1) is 15°C, the starting temperature of the second-effect heating device (2) is 35°C, the starting temperature of the third-effect heating device (3) is 60°C, and the starting temperature of the fourth-effect heating device (4) is 80°C.

8. A shrimp powder processing system suitable for ocean-going fishing vessels, characterized in that: It comprises a first-effect heating device (1), a second-effect heating device (2), a third-effect heating device (3), a fourth-effect heating device (4), an exhaust gas conveying pipe (5), and a condensed water pipe (6); The steam of the steam system on the fishing vessel is connected to the steam inlets of the first-effect heating device (1), the second-effect heating device (2), the third-effect heating device (3), and the fourth-effect heating device (4) respectively through a steam pipe (7); The exhaust gas outlets of the second-effect heating device (2), the third-effect heating device (3), and the fourth-effect heating device (4) are connected to the exhaust gas inlet of the front-end heating device via the exhaust gas conveying pipe (5); the condensate outlets of the first-effect heating device (1), the second-effect heating device (2), the third-effect heating device (3), and the fourth-effect heating device (4) are converged via the condensate pipe (6) to flow into the fresh water preparation machine (9).

9. The shrimp powder processing system according to claim 8, characterized in that: A first valve, a second valve, a third valve and a fourth valve are respectively provided on the steam pipeline (7) connected to the first-effect heating device (1), the second-effect heating device (2), the third-effect heating device (3) and the fourth-effect heating device (4) for controlling steam input.

10. The shrimp powder processing system according to claim 9, characterized in that: A fifth valve is provided on the exhaust gas pipeline connecting the three-effect heating device (3) and the two-effect heating device (2), and a sixth valve is provided on the exhaust gas pipeline connecting the two-effect heating device (2) and the one-effect heating device (1), for controlling the exhaust gas input.

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