Fish maw blanching device

Abstract

The invention relates to the technical field of fish maw blanching treatment, and provides a fish maw blanching device which comprises a treatment box, fish maw sequentially passes through a preheating cavity, a boiling cavity and a cooling cavity of the treatment box, an inlet window and an outlet window are formed in the two opposite sides of the upper portion of the boiling cavity respectively, boiling water is contained in the lower portion in the boiling cavity, and the fish maw blanching device further comprises an upper cover arranged at the upper end of the boiling cavity; the number of the sealing doors is two, and the two sealing doors are arranged on the inlet window and the outlet window in an opening and closing mode respectively; the screen is arranged in the boiling cavity in a lifting manner and is used for carrying the fish maw to enter boiling water at the lower part in the boiling cavity or upwards separate from the boiling water. By means of the technical scheme, the problem that in the prior art, fish maw is blanched in boiling water for a long time, and the discharging efficiency of fishy smell substances is low is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of fish maw blanching treatment, in particular to a fish maw blanching device. Background Art

[0002] Fish maw, also known as fish glue, white maw, fish belly, and fish bladder, is mainly produced in my country's coastal areas and the South Pacific Islands. It is the fish bladder, which is made by cutting and drying. Blanching is a relatively important step in the processing of fish maw.

[0003] When processing large quantities of fish maw, existing blanching equipment typically boils the fish maw directly in boiling water within a processing tank. A conveyor belt controls the fish maw's movement rate, adjusting the blanching time. After blanching, the fish maw is cooled by rinsing with cold water, rapidly cooling it down, locking in the gelatin and maintaining its elasticity, thus achieving a streamlined blanching process. Blanching uses high temperatures to volatilize or dissolve the fishy odor in the fish maw, thereby reducing the odor. However, existing methods of boiling fish maw in water have a poor volatilization effect, resulting in low odor removal efficiency. Fish maw is also not suitable for prolonged high-temperature boiling, which can lead to nutrient loss.

[0004] In the prior art, the problem that fish maw is blanched in boiling water for a long time and the discharge efficiency of fishy substances is low needs to be solved. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a fish maw blanching device in response to the above-mentioned technical deficiencies, which solves the problem in the prior art that fish maw is blanched in boiling water for a long time and the discharge efficiency of fishy substances is low.

[0006] The technical solution adopted by the present invention is to provide a fish maw blanching device, comprising a processing box, wherein the fish maw passes through a preheating chamber, a boiling chamber, and a cooling chamber of the processing box in sequence. The present invention is characterized in that an inlet window and an outlet window are respectively provided on opposite sides of the upper portion of the boiling chamber, and boiling water is provided in the lower portion of the boiling chamber. The present invention also comprises:

[0007] An upper cover is arranged at the upper end of the boiling chamber;

[0008] There are two sealing doors, which are respectively opened and closed on the entrance window and the exit window;

[0009] The screen is arranged in the boiling chamber in a lifting manner and is used for carrying the fish maw into the boiling water at the lower part of the boiling chamber or upwardly separating from the boiling water.

[0010] Further optimization of this technical solution also includes:

[0011] A guide net having an arc-shaped portion at the lower portion;

[0012] A support frame is arranged in the cooling cavity;

[0013] The conveyor belt is rotatably arranged on the support frame, and the conveyor belt has trays distributed in sequence along the ring. The lower part of the conveyor belt is located inside the arc-shaped part, and the upper part of the conveyor belt is located above the cooling water level in the cooling chamber. The trays are used to carry the fish maw and move upward in the cooling chamber.

[0014] To further optimize this technical solution, a discharge port is provided on one side of the cooling chamber, the support frame is swingably arranged in the cooling chamber, the upper part of the support frame is a swing end, the support frame is in an inclined state after swinging and the upper part of the conveyor belt is close to the discharge port.

[0015] Further optimization of this technical solution also includes:

[0016] A cooling water spray pipe is arranged in the cooling cavity and is located on a side of the cooling cavity close to the boiling cavity. The cooling water spray pipe is used to spray cooling water onto the tray.

[0017] Further optimization of this technical solution also includes:

[0018] A cooling air jet pipe is arranged in the cooling cavity and located above the cooling water jet pipe, and the cooling air jet pipe is used to spray cooling gas toward the tray.

[0019] Further optimization of this technical solution also includes:

[0020] A lifting plate is arranged in the preheating chamber for lifting. After the lifting plate rises, it is used to send the fish maw from the preheating chamber through the inlet window into the boiling chamber.

[0021] Further optimization of this technical solution also includes:

[0022] a first water spray pipe, disposed in the preheating chamber, for flushing the fish maw on the lifting plate into the boiling chamber;

[0023] The second water spray pipe is arranged in the boiling chamber and is used for flushing the fish maw on the screen into the cooling chamber.

[0024] The beneficial effects of the present invention are:

[0025] 1. The upper cover and the sealing door make the boiling chamber a closed space, with boiling water at the bottom and high-pressure steam at the top. The screen drives the fish maw to move up and down. The fish maw can be soaked in boiling water, which can make some of its fibers absorb water and swell, and the texture becomes soft. The fish maw can also be soaked in high-temperature steam. In the high-temperature steam environment, the fish maw is heated at a higher temperature and is not surrounded by water, so the volatilization effect is better, which is conducive to the volatilization and discharge of fishy substances, and the sterilization effect is stronger.

[0026] 2. When fish maw is in high-temperature steam, the stirring effect of boiling water can be reduced, which helps to delay the problem of being overcooked.

[0027] 3. As the fish maw moves up and down in the boiling chamber, the impact and flow changes of water can more easily clean the surface of the fish maw, removing dust and impurities on the surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the present invention;

[0029] Figure 2 It is a front structural schematic diagram of the present invention;

[0030] Figure 3 It is a schematic diagram of the structure of the present invention from above;

[0031] Figure 4 For the present invention Figure 3 Schematic diagram of the cross-sectional structure at the AA position;

[0032] Figure 5 It is a schematic diagram of the local structure of the cooling chamber of the present invention;

[0033] Figure 6 It is a schematic diagram of the partial structure of the preheating chamber and boiling chamber of the present invention;

[0034] Explanation of the marks in the figure: 1. Processing box; 101. Preheating chamber; 102. Boiling chamber; 1021. Inlet window; 1022. Outlet window; 103. Cooling chamber; 1031. Discharge port; 2. Upper cover; 3. Sealing door; 4. Screen; 5. Guide net; 501. Arc-shaped part; 6. Support frame; 601. Conveyor belt; 602. Pallet; 701. Cooling water pipe; 702. Cooling air jet pipe; 8. Lifting plate; 901. First water pipe; 902. Second water pipe. DETAILED DESCRIPTION

[0035] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] To simplify the drawings, only portions relevant to the invention are schematically depicted in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one component with the same structure or function is schematically depicted or labeled. In this document, "one" not only means "only one" but also "more than one," and "several" includes "two" and "more than two."

[0037] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0038] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0039] like Figure 1-6 As shown, a fish maw blanching device includes a processing box 1, and the fish maw passes through the preheating chamber 101, boiling chamber 102 and cooling chamber 103 of the processing box 1 in sequence. The boiling chamber 102 has an inlet window 1021 and an outlet window 1022 on two opposite sides of the upper part, and there is boiling water in the lower part of the boiling chamber 102. It also includes: an upper cover 2, which is arranged at the upper end of the boiling chamber 102; a sealing door 3, which has two sealing doors 3, and the two sealing doors 3 are respectively opened and closed on the inlet window 1021 and the outlet window 1022; a screen 4, which is raised and lowered in the boiling chamber 102 and is used to carry the fish maw into the boiling water in the lower part of the boiling chamber 102 or to move upward out of the boiling water.

[0040] When in use, the preheating chamber 101, the boiling chamber 102 and the cooling chamber 103 are arranged in sequence along the moving direction of the fish maw in the processing box 1, and the three are separated by partitions, so that the water contained in each chamber does not circulate and mix directly. The boiling chamber 102 and the preheating chamber 101 are connected through the upper inlet window 1021, and the boiling chamber 102 and the cooling chamber 103 are connected through the upper outlet window 1022. The water in the boiling chamber 102 can be heated and boiled by a heating device or steam, and flowing cooling water can be introduced into the cooling chamber 103 for cooling. At the same time, the heat in the boiling chamber 102 and the heat in the cooling chamber 103 and the steam discharged by the boiling chamber 102 under constant pressure can be introduced into the preheating chamber 101 to achieve heat recovery. The addition of circulating water and heat recovery are all existing conventional technical means and are not demonstrated in this application. The sealing door 3 can be a lifting structure.

[0041] When the fish maw enters the preheating chamber 101, some dust and impurities on the surface can be removed. At the same time, the fish maw is heated and absorbs water to gradually soften, which is conducive to solving the problem of large temperature difference when the fish maw directly enters the boiling chamber 102, affecting the quality of the fish maw.

[0042] After the sealing door 3 of the entrance window 1021 is opened, the fish maw enters the boiling chamber 102 from the preheating chamber 101. Then, new fish maw can be added to the preheating chamber 101. The sealing door 3 is closed, and a relatively closed space is formed in the boiling chamber 102. High-pressure steam can be discharged through a pressure relief valve or the like, and the latter is led out through a pipeline to maintain a stable internal pressure. In the boiling chamber 102, the fish maw is on the screen 4. The screen 4 has a mesh structure that facilitates the contact between the fish maw and water vapor and / or boiling water. When the screen 4 is in the boiling water in the lower part of the boiling chamber 102, the fish maw absorbs water and heats, and the screen 4 moves upward, carrying the fish maw upward and away from the boiling water, so that the fish maw is in a steam environment. The hot water on the surface of the fish maw gradually flows down, reducing the water surrounding it. The high temperature and steam flow accelerate the volatilization of the fishy substances in the fish maw away from the fish maw. The blanching time of the fish maw is about 5-10 minutes, and the screen 4 can move up and down repeatedly. Finally, the screen 4 is moved upward to separate from the boiling water to reduce the fishy substances and other impurities contained in the boiling water adhering to the surface of the fish maw. The sealing door 3 of the outlet window 1022 is opened, and the fish maw enters the cooling chamber 103 for cooling.

[0043] Furthermore, it also includes: a guide net 5, having an arc-shaped portion 501 at the lower part; a support frame 6, which is arranged in the cooling chamber 103; a conveyor belt 601, which is arranged on the support frame 6 for circular rotation, and the conveyor belt 601 has trays 602 distributed in sequence along the ring. The lower part of the conveyor belt 601 is located inside the arc-shaped portion 501, and the upper part of the conveyor belt 601 is located above the cooling water level in the cooling chamber 103. The tray 602 is used to carry the fish maw and move upward in the cooling chamber 103.

[0044] A discharge port 1031 is provided on one side of the cooling chamber 103 . The support frame 6 is swingably arranged in the cooling chamber 103 . The upper portion of the support frame 6 is a swing end. After the support frame 6 swings, it is in an inclined state and the upper portion of the conveyor belt 601 is close to the discharge port 1031 .

[0045] During use, when support frame 6 is vertically positioned, conveyor belt 601 is in a vertical position, with its lower portion located in the cooling water and its upper portion above the water surface. As tray 602 moves up and down, it drives the fish maw in and out of the cooling water, rapidly cooling it. When the fish maw follows tray 602 upward and out of the cooling water below, the surface water flows into the cooling water below and removes heat. Simultaneously, the water film remaining on the surface absorbs the heat from the fish maw and evaporates, further reducing the amount of fishy-smelling water adhering to the surface through evaporation. Simultaneously, both cooling water and evaporation are fully utilized for cooling, reducing water waste.

[0046] The guide net 5 is concave as a whole, and the lower part is an arc-shaped portion 501 that matches the moving track of the tray 602, so as to facilitate the fish maw to be fished out from the cooling water when the tray 602 rotates. The guide net 5 as a whole or the arc-shaped portion 501 can be a mesh structure.

[0047] like Figure 5As shown, the support frame 6 is swung with the lower portion as the axis. When the upper swing end swings, the support frame 6 swings from a vertical position to an inclined position. In the vertical position, the tray 602 carrying the fish maw escapes the water surface, passes over the high position of the conveyor belt 601, and then enters the cooling water. The conveyor belt 601 rotates continuously, which can be clockwise in the figure. When the support frame 6 swings and tilts, the upper portion of the conveyor belt 601 approaches the discharge port 1031, and the tray 602 rotates with the conveyor belt 601. The tray 602 is tilted above the discharge port 1031, and the fish maw slides along the tray 602 to the discharge port 1031 and is discharged. This realizes assembly line operation. When rotating clockwise, when the tray 602 passes the high position of the conveyor belt 601, the fish maw in the tray 602 slides down and is caught by the adjacent tray 602 below.

[0048] The thermal conductivity of water is much higher than that of air, so the conveyor belt 601 can be mostly located in the cooling water. In the short time after the fish maw is taken out of the water, a small amount of water is still attached to it, and the surface water gradually disappears.

[0049] Furthermore, it also includes: a cooling water spray pipe 701, which is arranged in the cooling cavity 103 and located on a side of the cooling cavity 103 close to the boiling cavity 102. The cooling water spray pipe 701 is used to spray cooling water to the tray 602.

[0050] The cooling chamber 103 further includes a cooling air jet pipe 702 , which is disposed in the cooling chamber 103 and above the cooling water jet pipe 701 . The cooling air jet pipe 702 is used to spray cooling gas toward the tray 602 .

[0051] During use, the cooling water spray pipe 701 and the cooling air jet pipe 702 can cool the fish maw and clean its surface, reducing the residual fishy smell. The cooling water spray pipe 701 provides running water to spray the fish maw, cooling and cleaning it. The cooling air jet pipe 702 above blows air onto the fish maw on the tray 602, quickly drying excess water on the surface. The water film absorbs heat and evaporates, or is blown away by the cooling air jet pipe 702, quickly separating from the surface of the fish maw. The water inlet end of the cooling water spray pipe 701 can be connected to the water in the cooling chamber 103 or to external cooling water, and water can be supplied by water pressure or a water pump. The cooling air jet pipe 702 is connected to an external high-pressure air source.

[0052] Furthermore, it also includes: a lifting plate 8, which is set in the preheating chamber 101 for lifting. After the lifting plate 8 rises, it is used to send the fish maw from the preheating chamber 101 into the boiling chamber 102 through the inlet window 1021.

[0053] During use, the lifting plate 8 can be tilted, with the side near the inlet window 1021 lower, so that the fish maw moves along the lifting plate 8. Repeatedly raising and lowering the lifting plate 8 enhances the cleaning effect of the fish maw in the preheating chamber 101. After the lifting plate 8 rises to the height of the inlet window 1021, most of the water on the surface of the fish maw flows down into the preheating chamber 101. The sealing door 3 is opened, and the fish maw flows from the lifting plate 8 into the boiling chamber 102. The lifting plate 8 can also have a mesh structure.

[0054] Furthermore, it also includes: a first water spray pipe 901, which is arranged in the preheating chamber 101, and is used to flush the fish maw on the lifting plate 8 into the boiling chamber 102; a second water spray pipe 902, which is arranged in the boiling chamber 102, and is used to flush the fish maw on the screen 4 into the cooling chamber 103.

[0055] During use, the first and second water spray pipes 901 and 902 spray water to propel the fish maw, allowing it to pass from the lifting plate 8 into the boiling chamber 102 and then from the screen 4 through the outlet window 1022 into the cooling chamber 103. The lifting plate 8 is tilted to facilitate the movement of the fish maw, and the screen 4 can also be tilted. Both the first and second water spray pipes 901 and 902 are connected to an external high-pressure water source and can replenish water in the preheating chamber 101 and boiling chamber 102.

[0056] The lifting drive units of the screen 4 and the lifting plate 8, the circular rotation drive unit of the conveyor belt 601, and the swing drive unit of the support frame 6 are all prior art and can be implemented by those skilled in the art. For the sake of illustration, they are not shown in this application.

[0057] It will be understood that the present invention is described by way of some embodiments, and it will be appreciated by those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A device for blanching fish maw, comprising a processing box (1), wherein the fish maw passes through a preheating chamber (101), a boiling chamber (102) and a cooling chamber (103) of the processing box (1) in sequence, characterized in that: The boiling chamber (102) has an inlet window (1021) and an outlet window (1022) on opposite sides of the upper portion, respectively. The lower portion of the boiling chamber (102) contains boiling water. The boiling chamber (102) further comprises: An upper cover (2) is arranged at the upper end of the boiling chamber (102); There are two sealing doors (3), and the two sealing doors (3) are respectively opened and closed on the inlet window (1021) and the outlet window (1022); The screen (4) is arranged in the boiling chamber (102) in a lifting manner and is used to carry the fish maw into the boiling water at the lower part of the boiling chamber (102) or to move upward out of the boiling water.

2. A fish maw blanching device according to claim 1, characterized in that: Also includes: A guide net (5), having an arc-shaped portion (501) at the lower portion; A support frame (6) is arranged in the cooling cavity (103); A conveyor belt (601) is rotatably arranged on the support frame (6), and the conveyor belt (601) has trays (602) distributed in sequence along a ring shape. The lower part of the conveyor belt (601) is located inside the arc portion (501), and the upper part of the conveyor belt (601) is located above the cooling water level in the cooling chamber (103). The trays (602) are used to carry the fish maw and move upward in the cooling chamber (103).

3. A fish maw blanching device according to claim 2, characterized in that: A discharge port (1031) is provided on one side of the cooling chamber (103); the support frame (6) is swingably arranged in the cooling chamber (103); the upper portion of the support frame (6) is a swing end; the support frame (6) is in an inclined state after swinging, and the upper portion of the conveyor belt (601) is close to the discharge port (1031).

4. The fish maw blanching device according to claim 2, characterized in that: Also includes: A cooling water spray pipe (701) is arranged in the cooling chamber (103) and is located on a side of the cooling chamber (103) close to the boiling chamber (102). The cooling water spray pipe (701) is used to spray cooling water onto the tray (602).

5. The fish maw blanching device according to claim 4, characterized in that: Also includes: A cooling air jet pipe (702) is arranged in the cooling cavity (103) and located above the cooling water jet pipe (701), and the cooling air jet pipe (702) is used to spray cooling gas toward the tray (602).

6. The fish maw blanching device according to claim 1, characterized in that: Also includes: A lifting plate (8) is arranged to be lifted in the preheating chamber (101); after the lifting plate (8) is lifted, it is used to send the fish maw from the preheating chamber (101) through the inlet window (1021) into the boiling chamber (102).

7. The fish maw blanching device according to claim 6, characterized in that: Also includes: A first water spray pipe (901) is provided in the preheating chamber (101) and is used to flush the fish maw on the lifting plate (8) into the boiling chamber (102); The second water spray pipe (902) is arranged in the boiling chamber (102) and is used to flush the fish maw on the screen (4) into the cooling chamber (103).

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