Blanching device for aquatic product processing

By designing a continuous aquatic product processing device, the problems of inaccurate temperature control and water waste have been solved, achieving an efficient and environmentally friendly aquatic product processing process, and improving the automation level of the equipment and product quality.

CN224250586UActive Publication Date: 2026-05-19FUJIAN HONGHANG AQUATIC PRODUCTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FUJIAN HONGHANG AQUATIC PRODUCTS CO LTD
Filing Date
2025-07-03
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Traditional aquatic product processing equipment suffers from problems such as inaccurate temperature control, low thermal efficiency, serious water waste, and discontinuous processing flow, resulting in low efficiency and environmental burden.

Method used

Design a continuous processing device including a preheating tank, a blanching tank, and a cooling tank. Combine a conveying mechanism, an electric heating wire disc, a temperature sensor, and a water storage tank to achieve precise temperature control and water resource recycling. Ensure heating uniformity through a heat-conducting plate and use a detachable filter screen and control valve to control water flow.

Benefits of technology

It enables continuous, highly efficient, and automated processing of aquatic products, with precise temperature control, reducing water consumption and wastewater discharge, and improving the environmental friendliness of the equipment and product quality.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224250586U_ABST
    Figure CN224250586U_ABST
Patent Text Reader

Abstract

The utility model relates to a blanching device for aquatic product processing, in particular to the technical field of aquatic product processing equipment. The device comprises a preheating tank, a blanching tank, a cooling tank, a conveying mechanism, an electric heating wire disc, a heat conducting plate, a temperature sensor and a water storage tank, the preheating tank, the blanching tank and the cooling tank are connected in series, the conveying mechanism is connected smoothly, the whole process of aquatic product processing is automatically and continuously carried out, and each tank is independently provided with the temperature sensor and a heating element (preheating / blanching tank). The heat conduction plate ensures uniform heating, accurate temperature control and product quality, cooling water is collected and filtered and then is used for supplementing the preheating tank and the blanching tank, fresh water consumption and waste water discharge are greatly reduced, and energy conservation and environmental protection are achieved.
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Description

Technical Field

[0001] This utility model relates to the technical field of aquatic product processing equipment, and in particular to a blanching device for aquatic product processing. Background Technology

[0002] Blanching is a crucial pretreatment step in the processing of aquatic products (such as fish, shrimp, and shellfish), primarily used for enzyme inactivation, sterilization, color fixation, and removal of fishy odors. Traditional blanching equipment often suffers from inaccurate temperature control, low thermal efficiency, significant water waste, and inefficiency due to discontinuous processing. Furthermore, the direct discharge of cooling water not only wastes water resources but may also impose environmental burdens. Utility Model Content

[0003] (1) Technical solution

[0004] To solve the above-mentioned technical problems, this utility model provides a blanching device for aquatic product processing, including a preheating tank, a blanching tank, a cooling tank, a conveying mechanism, an electric heating wire disc, a heat-conducting plate, a temperature sensor, and a water storage tank. The preheating tank, the blanching tank, and the cooling tank are arranged sequentially from one end to the other. The conveying mechanism is installed in each of the preheating tank, the blanching tank, and the cooling tank. The discharge end of the conveying mechanism in the preheating tank extends directly above the loading end of the conveying mechanism in the blanching tank, and the discharge end of the conveying mechanism in the blanching tank extends directly above the loading end of the conveying mechanism in the cooling tank. The electric heating wire disc is installed on the inner wall of the bottom of both the preheating tank and the blanching tank. The heating wire reel has a heat-conducting plate on its outer side. Temperature sensors are installed in the preheating tank, the rinsing tank, and the cooling tank. A drain outlet is provided on one side of the bottom of the cooling tank. A filter screen is detachably installed in the water storage tank. An inlet is provided on one side of the water storage tank above the filter screen. The drain outlet is connected to the inlet via a pipe. An outlet is provided on the other side of the bottom of the water storage tank. The outlet is connected to one end of a main supply pipe. The main supply pipe spans the preheating tank and extends to the top of the rinsing tank. A first supply branch pipe extending to the top of the preheating tank is connected to the bottom of the main supply pipe. A second supply branch pipe is vertically connected to the other end of the main supply pipe.

[0005] Preferably, the conveying mechanism includes a first driving wheel, a first intermediate wheel, a second intermediate wheel, a first driven wheel, and a conveyor belt. The first driving wheel is driven by a drive motor. The conveyor belt is evenly provided with partitions. The conveyor belt between the first driving wheel and the first intermediate wheel and between the second intermediate wheel and the first driven wheel is straight. The conveyor belt between the first intermediate wheel and the second intermediate wheel is inclined upward.

[0006] Preferably, the first supply branch pipe is provided with a first control valve, and the second supply branch pipe is provided with a second control valve.

[0007] Preferably, the main supply pipe is equipped with a water pump and a third control valve.

[0008] Preferably, a locking block is provided between the inner walls on both sides of the water storage tank, and a locking groove is provided on both sides of the filter screen, with the two locking blocks correspondingly engaging in the two locking grooves.

[0009] Preferably, a pull ring is provided on the outer side of the filter screen.

[0010] (2) Beneficial effects

[0011] This utility model provides a blanching device for aquatic product processing. Compared with the prior art, this utility model has the following advantages:

[0012] (1) High efficiency of continuous processing: The three tanks of preheating, blanching and cooling are connected in series, and the conveying mechanism is smoothly connected, realizing the full-process automation and continuous processing of aquatic products.

[0013] (2) Precise temperature control: Each tank is independently equipped with a temperature sensor and heating element (preheating / blanching tank), and the heat conduction plate ensures uniform heating, precise temperature control, and guarantees product quality.

[0014] (3) Water resource recycling: Cooling water is collected and filtered and then used to replenish the preheating tank and scalding tank, which greatly reduces the consumption of fresh water and wastewater discharge, saving energy and protecting the environment.

[0015] (4) Easy filter maintenance: The card slot design makes it easy to disassemble and install the filter. With the pull ring, it is easy to clean or replace it regularly, ensuring the filtration effect and water quality.

[0016] (5) Flexible and controllable replenishment: The amount and timing of water replenishment to the preheating tank or scalding tank can be flexibly controlled through independent control valves (first, second and third control valves) and water pumps.

[0017] (6) Stable and reliable conveying: The specific wheel system layout of the conveying mechanism (straight section + inclined section) not only ensures the full processing of products in the tank, but also realizes the smooth and automatic transfer of products between tanks, and the partition prevents products from piling up. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the cooling tank structure of this utility model excluding the filter screen.

[0020] Figure 3 This is a schematic diagram of the structure of the filter screen of this utility model.

[0021] The attached diagram is labeled as follows: 1-Preheating tank, 2-Blanching tank, 3-Cooling tank, 4-Conveying mechanism, 41-First driving wheel, 42-First intermediate wheel, 43-Second intermediate wheel, 44-First driven wheel, 45-Conveyor belt, 451-Baffle plate, 5-Heating wire disc, 6-Heat-conducting plate, 7-Temperature sensor, 8-Drain outlet, 9-Water storage tank, 91-Clamping block, 10-Water inlet, 11-Filter screen, 111-Clamping slot, 112-Pull ring, 12-Water outlet, 13-Main supply pipe, 131-First supply branch pipe, 1311-First control valve, 132-Second supply branch pipe, 1321-Second control valve, 14-Water pump, 15-Third control valve. Detailed Implementation

[0022] The present invention will be further described in conjunction with the accompanying drawings and embodiments.

[0023] like Figures 1-3As shown, the present invention discloses a blanching device for aquatic product processing, comprising a preheating tank 1, a blanching tank 2, a cooling tank 3, a conveying mechanism 4, a heating wire disc 5, a heat-conducting plate 6, a temperature sensor 7, and a water storage tank 9. The preheating tank 1, the blanching tank 2, and the cooling tank 3 are arranged sequentially from one end to the other. The water temperature in the preheating tank 1 is controlled at a preheating temperature lower than the blanching temperature (e.g., 60-80℃), the water temperature in the blanching tank 2 is controlled at the required precise blanching temperature (e.g., 90-100℃), and room temperature water or low temperature water is introduced into the cooling tank 3 for rapid cooling. The preheating tank 1, the blanching tank 2, and the cooling tank 3 are all equipped with conveying mechanisms 4. The unloading end of the conveying mechanism 4 in the preheating tank 1 extends directly above the loading end of the conveying mechanism 4 in the blanching tank 2, and the unloading end of the conveying mechanism 4 in the blanching tank 2 extends directly above the loading end of the conveying mechanism 4 in the cooling tank 3, allowing the aquatic products to slide naturally through. The heating wire discs 5 are installed on the inner bottom walls of the preheating tank 1 and the blanching tank 2. A heat-conducting plate 6 (such as a stainless steel plate) is provided on the outer side of the heating wire discs 5. The heat-conducting plate 6 evenly diffuses the heat generated by the heating wire discs 5, preventing the heating wires from directly contacting the products and causing localized burns or scorching of deposits. Temperature sensors 7 are installed in the preheating tank 1, the blanching tank 2, and the cooling tank 3 to monitor the water temperature in real time and adjust the power of the heating wire discs 5 according to the water temperature, achieving precise temperature control. The cooling tank 3 has a drain outlet 8 on one side of its bottom. A filter screen 11 is detachably installed inside the water storage tank 9. A water inlet 10 is opened on one side of the water storage tank 9 above the filter screen 11. The drain outlet 8 is connected to the water inlet 10 through a pipe. A water outlet 12 is opened on the other side of the bottom of the water storage tank 9. The water outlet 12 is connected to one end of the main supply pipe 13. The main supply pipe 13 spans the preheating tank 1 and extends to the top of the scalding tank 2. The bottom of the main supply pipe 13 is connected to a first supply branch pipe 131 extending to the top of the preheating tank 1. The other end of the main supply pipe 13 is vertically connected to a second supply branch pipe 132.

[0024] The conveying mechanism 4 includes a first driving wheel 41, a first intermediate wheel 42, a second intermediate wheel 43, a first driven wheel 44, and a conveyor belt 45. The first driving wheel 41 is driven by a drive motor. The conveyor belt 45 is evenly provided with partitions 451. The conveyor belt 45 between the first driving wheel 41 and the first intermediate wheel 42 and between the second intermediate wheel 43 and the first driven wheel 44 is straight. The conveyor belt 45 between the first intermediate wheel 42 and the second intermediate wheel 43 is inclined upward. Its function is to lift aquatic products from a lower position to a higher position.

[0025] The first supply branch pipe 131 is equipped with a first control valve 1311, the second supply branch pipe 132 is equipped with a second control valve 1321, and the main supply pipe 13 is equipped with a water pump 14 and a third control valve 15.

[0026] The water storage tank 9 has locking blocks 91 between its two inner walls, and the filter screen 11 has slots 111 on both sides. The two locking blocks 91 are correspondingly engaged in the two slots 111. The water storage tank 9 has a detachable filter screen 11 for filtering out impurities such as scales and meat scraps from the water. The filter screen 11 has a pull ring 112 on its outer side for easy removal and cleaning.

[0027] Working principle:

[0028] (1) Preheating: Aquatic products are fed into preheating tank 1 by conveying mechanism 4 and preheated in preheating warm water.

[0029] (2) Blanching: The preheated product slides onto the conveyor belt 45 of the blanching tank 2 and undergoes core processing in the precisely temperature-controlled blanching water.

[0030] (3) Cooling: After blanching, the product slides onto the conveyor belt 45 of the cooling tank 3 and is quickly cooled by cooling water.

[0031] (4) Water circulation: Warm water (containing impurities) from cooling tank 3 enters water storage tank 9 through drain outlet 8, pipe, and inlet 10. After being filtered by filter screen 11, it becomes cleaner water and is stored at the bottom of the tank. When preheating tank 1 or scalding tank 2 needs to be replenished due to evaporation or process requirements, water pump 14 and corresponding control valves (third control valve 15, first control valve 1311, or second control valve 1321) are turned on. The filtered water is replenished to preheating tank 1 through outlet 12, main supply pipe 13, and first supply branch pipe 131, or to scalding tank 2 through second supply branch pipe 132. Scalding tank 2 usually needs to be replenished with high-temperature water, which can be achieved by controlling water to be replenished only to scalding tank 2 or by using electric heating wire plate 5 to heat and replenish water.

[0032] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0033] The embodiments described above are merely preferred embodiments of the present invention, and are described in a relatively specific and detailed manner. However, the present invention is not limited to these embodiments. It should be noted that for those skilled in the art, any improvements made without departing from the spirit of the present invention fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A blanching device for processing aquatic products, characterized in that, The system includes a preheating tank (1), a blanching tank (2), a cooling tank (3), a conveying mechanism (4), a heating wire disc (5), a heat-conducting plate (6), a temperature sensor (7), and a water storage tank (9). The preheating tank (1), the blanching tank (2), and the cooling tank (3) are arranged sequentially from one end to the other. The conveying mechanism (4) is installed in each of the preheating tank (1), the blanching tank (2), and the cooling tank (3). The feeding end of the conveying mechanism (4) in the preheating tank (1) extends directly above the feeding end of the conveying mechanism (4) in the blanching tank (2). The feeding end of the conveying mechanism (4) in the blanching tank (2) extends directly above the feeding end of the conveying mechanism (4) in the cooling tank (3). The heating wire disc (5) is installed on the inner wall of the bottom of the preheating tank (1) and the blanching tank (2). The heat-conducting plate (6) is arranged on the outer side of the heating wire disc (5). Temperature sensors (7) are installed in the preheating tank (1), the blanching tank (2), and the cooling tank (3). A drain outlet (8) is provided on one side of the bottom of the cooling tank (3). A filter screen (11) is detachably installed in the water storage tank (9). A water inlet (10) is opened on one side of the water storage tank (9) above the filter screen (11). The drain outlet (8) is connected to the water inlet (10) through a pipe. A water outlet (12) is provided on the other side of the bottom of the box (9). The water outlet (12) is connected to one end of the main supply pipe (13). The main supply pipe (13) spans the preheating tank (1) and extends to the top of the scalding tank (2). The bottom of the main supply pipe (13) is connected to a first supply branch pipe (131) extending to the top of the preheating tank (1). The other end of the main supply pipe (13) is vertically connected to a second supply branch pipe (132).

2. The blanching device for processing aquatic products according to claim 1, characterized in that, The conveying mechanism (4) includes a first driving wheel (41), a first intermediate wheel (42), a second intermediate wheel (43), a first driven wheel (44), and a conveyor belt (45). The first driving wheel (41) is driven by a drive motor. The conveyor belt (45) is evenly provided with partitions (451). The conveyor belt (45) between the first driving wheel (41) and the first intermediate wheel (42) and between the second intermediate wheel (43) and the first driven wheel (44) is straight. The conveyor belt (45) between the first intermediate wheel (42) and the second intermediate wheel (43) is inclined upward.

3. The blanching device for processing aquatic products according to claim 1, characterized in that, The first supply branch pipe (131) is provided with a first control valve (1311), and the second supply branch pipe (132) is provided with a second control valve (1321).

4. The blanching apparatus for processing aquatic products according to claim 1, wherein The main supply pipe (13) is equipped with a water pump (14) and a third control valve (15).

5. The blanching apparatus for processing aquatic products according to claim 1, wherein The water storage tank (9) has a locking block (91) between its two inner walls, and the filter screen (11) has a slot (111) on both sides. The two locking blocks (91) are correspondingly locked into the two slots (111).

6. The blanching apparatus for processing aquatic products according to claim 1, wherein A pull ring (112) is arranged on the outer side of the filter screen (11).