A blanching device for potato processing
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN QISHUPO FOOD CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-06-26
AI Technical Summary
Existing blanching equipment for potato processing makes it difficult to recycle and reuse blanching water, which increases production costs and can easily accelerate water quality deterioration, affecting subsequent blanching effects and processing quality.
A device was designed that includes a tank, a heating component, a filtration component, a water supply component, a cleaning component, and a reflux component. The filtration component removes impurities from the blanching water, the cleaning component cleans the potato raw materials, and the reflux component enables the recycling of the blanching water to ensure water quality.
It enables the recycling of blanching water, saves production costs, slows down the rate of water quality deterioration, ensures the processing quality and taste of potato products, reduces the probability of filter component clogging, reduces wastewater discharge, and lowers production costs.
Smart Images
Figure CN224402835U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of food processing technology, and in particular to a blanching device for potato processing. Background Technology
[0002] Potatoes are a widely used raw material in the food processing industry, primarily used to produce popular consumer foods such as French fries and potato chips. During processing, potatoes typically need to be sliced or cut into strips before frying or baking. To ensure food safety and reduce the content of harmful substances in potatoes, the raw potatoes must be blanched before frying or baking. This not only sterilizes the potatoes at high temperatures but also effectively reduces the acrylamide content.
[0003] The applicant obtained the following prior art through searching, specifically, patent CN219679717U discloses a novel potato blanching device, including a support frame, a blanching box, a water control box, a moving component, a cooling component, and a blanching basket. The blanching box and the water control box are respectively located at the left and right ends of the support frame. The moving component is located at the upper end of the support frame. The blanching basket is located on the moving component and above the blanching box and the water control box. The moving component includes a servo motor, a lead screw, a threaded block, an electric telescopic rod, a cover plate, and a rotary motor. This utility model relates to the field of potato production and processing equipment technology, specifically a novel potato blanching device with a high degree of automation and capable of batch processing.
[0004] As can be seen from the patent above, although this novel potato blanching device can evenly and comprehensively blanch the potato raw materials in the blanching basket through the blanching tank, move the blanched potato raw materials to the water control tank for water control through the set moving component, and quickly cool the potato raw materials for water control through the set cooling component, in actual use, due to the lack of filtration or purification devices for blanching water, the high-temperature water after blanching needs to be changed frequently, making it difficult to achieve repeated recycling of blanching water. This not only increases production costs but also easily accelerates water quality deterioration, affecting the subsequent blanching effect (such as impurities adhering to the surface of potato raw materials), and reducing the quality of production and processing. Utility Model Content
[0005] The main purpose of this utility model is to provide a blanching device for potato processing, which aims to solve the problem that existing blanching devices for potato processing are difficult to achieve the recycling and reuse of blanching water, which not only increases production costs, but also easily accelerates water quality deterioration, affects the subsequent blanching effect and reduces processing quality.
[0006] To achieve the above objectives, this utility model provides a blanching device for potato processing, including a tank. A heating assembly is installed inside the tank, along with a filtering assembly, a water supply assembly, and a cleaning assembly. A partition is provided along the extending direction of the tank, dividing the inner cavity of the tank into a heating chamber and a blanching chamber that are interconnected. The filtering assembly for filtering out impurities in the blanching water is detachably installed on the partition, and the filtering assembly is located between the heating chamber and the blanching chamber. The water supply assembly is installed on the tank and is used to extract the blanching water from the heating chamber and transport it to the blanching chamber and the cleaning assembly. The cleaning assembly is used to clean the potato raw materials, and the cleaning assembly is connected to the heating chamber through a reflux assembly.
[0007] Preferably, one end of the partition is formed with a step, the filter assembly includes a bracket and a filter screen disposed in the bracket, one end of the bracket extends into the tank and overlaps the step, and the other end of the bracket is provided with a baffle, and the two sides of the baffle are respectively provided with a sealing ring and a handle.
[0008] Preferably, the water supply assembly includes a pump body, an inlet pipe, and an outlet pipe. The pump body is detachably installed on one side of the tank. The pump body is connected to the heating chamber and the scalding chamber through the inlet pipe and the outlet pipe, respectively. A first valve is provided on the inlet pipe and the outlet pipe, respectively.
[0009] Preferably, the water supply assembly further includes a shower pipe connected to the liquid outlet pipe. The shower pipe extends along the width direction of the partition and is disposed in the rinsing chamber, and a plurality of liquid outlets are uniformly and intermittently provided on the shower pipe along its extension direction.
[0010] Preferably, the cleaning assembly includes a receiving trough, an infusion pipe, and a rinsing pipe. The receiving trough is detachably installed above the partition and used to receive potato raw materials. The rinsing pipe is arranged near the top of the receiving trough. The rinsing pipe is connected to the outlet pipe through the infusion pipe. A second valve is provided on the infusion pipe. A filter plate is arranged obliquely near the bottom of the receiving trough.
[0011] Preferably, the bottom of the receiving trough is formed with a slope and an outlet hole is provided. The slope slopes from top to bottom in a direction away from the blanching chamber. The outlet hole is located at the bottom of the slope. The reflux assembly is detachably installed at the outlet hole. The reflux assembly includes a reflux pipe, a filter and a one-way valve connected in sequence. The one-way valve is connected to the heating chamber.
[0012] Preferably, the bottom of the tank is tapered from top to bottom and is equipped with a drain pipe for connecting to an external sewage system.
[0013] Beneficial effects:
[0014] 1. The blanching device for potato processing of this utility model can filter out and intercept potato fragments, starch and other impurities in the blanching water through the filter component during use, thereby realizing the recycling of blanching water. This not only saves production costs and effectively slows down the rate of water quality deterioration, but also ensures the blanching effect on subsequent potato raw materials, and avoids the potato raw materials from sticking with impurities due to the quality of the blanching water. This helps to ensure the processing quality of potato products and protect the color and taste of potato products.
[0015] 2. The blanching device for potato processing of this utility model can clean the potato raw materials through the cleaning component during use. This not only effectively reduces the rate of contamination of the blanching water and prevents the blanching water from becoming viscous due to starch, thus affecting the blanching effect, but also reduces the probability of clogging of the filter component, extends the service life of the filter component, reduces the frequency of maintenance of the filter component, and effectively prevents impurities and residues from adhering to the surface of the potato products during the blanching process, ensuring the appearance and taste of the potato products.
[0016] 3. The blanching device for potato processing of this utility model can not only achieve efficient and repeated recycling of blanching water through the reflux component during use, effectively reducing wastewater discharge and significantly reducing production and processing costs, but also help maintain the water balance in the tank, avoid temperature fluctuations caused by frequent water replenishment, and ensure the blanching efficiency of potato raw materials. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the structure of a blanching device for potato processing according to an embodiment of the present invention from a first-view perspective;
[0019] Figure 2 This is a top view of a blanching device for potato processing according to an embodiment of the present invention;
[0020] Figure 3 yes Figure 2 Cross-sectional view at point AA;
[0021] Figure 4 This is a schematic diagram of a blanching device for potato processing according to an embodiment of the present invention from a second perspective.
[0022] In the diagram: 1-Tank body; 2-Heating assembly; 3-Filter assembly; 4-Water supply assembly; 5-Washing assembly; 6-Baffle; 7-Heating chamber; 8-Blanking chamber; 9-Recirculation assembly; 10-Support; 11-Filter screen; 12-Baffle; 13-Pump body; 14-Inlet pipe; 15-Outlet pipe; 16-First valve; 17-Rinse pipe; 18-Receiving trough; 19-Infusion pipe; 20-Rinsing pipe; 21-Second valve; 22-Filter plate; 23-Slope; 24-Outlet hole; 25-Drain pipe. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0024] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0026] In the description of this application, it should be noted that the use of terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product is in use. These terms are used solely for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the use of terms such as "first" and "second" in the description of this application is only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0027] Furthermore, the use of terms such as "horizontal" and "vertical" in the description of this application does not imply that the component is required to be absolutely horizontal or suspended, but rather that it may be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but rather that it may be slightly tilted.
[0028] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0029] Example 1:
[0030] This utility model proposes a blanching device for potato processing.
[0031] In one embodiment of this utility model, a blanching device for potato processing includes a tank 1, a heating component 2 disposed inside the tank 1, a filter component 3, a water supply component 4, and a cleaning component 5. A partition 6 is disposed inside the tank 1 along its extending direction, dividing the inner cavity of the tank 1 into a heating chamber 7 and a blanching chamber 8 that are interconnected. A filter component 3 for filtering out impurities in the blanching water is detachably installed on the partition 6. The filter component 3 is located between the heating chamber 7 and the blanching chamber 8. The water supply component 4 is disposed on the tank 1 and is used to extract the blanching water in the heating chamber 7 and transport it to the blanching chamber 8 and the cleaning component 5. The cleaning component 5 is used to clean the potato raw materials, and the cleaning component 5 is connected to the heating chamber 7 through a return component 9.
[0032] Specifically, such as Figures 1 to 4 As shown, in the blanching device for potato processing of this utility model, the tank 1 can hold blanching water, thereby providing a stable working environment for the blanching of potato raw materials. When the blanching water in the tank 1 is added to the preset liquid level, the partition 6 divides the inner cavity of the tank 1 into a heating chamber 7 and a blanching chamber 8 that are interconnected. At this time, both the heating chamber 7 and the blanching chamber 8 are filled with blanching water. By setting the heating component 2 (such as the electric heating tube in the prior art) in the heating chamber 7, the temperature of the blanching water can be increased or maintained. The operator can transport the potato raw materials to the blanching chamber 8 through an external conveying device (such as a chain conveyor), so that the potato raw materials can complete the high-temperature blanching operation in the blanching chamber 8, thereby achieving high-temperature sterilization of the potato raw materials and ensuring the crispy taste of the potato raw materials after the frying process. The structural design is simple and reasonable.
[0033] Furthermore, in the use of the blanching device for potato processing of this utility model, since a filter assembly 3 is detachably installed on the partition 6 and the filter assembly 3 is located between the heating chamber 7 and the blanching chamber 8, after the heating assembly 2 heats the blanching water in the heating chamber 7 to a preset temperature, the water supply assembly 4 can extract the high-temperature blanching water from the heating chamber 7 and transport it to the blanching chamber 8 for blanching the potato raw materials. The blanching water after rinsing the potato raw materials flows into the filter assembly 3 under the action of the partition 6. At this time, the filter assembly 3 can filter out and intercept potato fragments, starch and other impurities in the blanching water, so that the blanching water flowing back into the heating chamber 7 is always in a clean and clear state, thereby realizing the recycling and reuse of the blanching water. This not only saves production costs and effectively slows down the rate of water quality deterioration, but also ensures the blanching effect on the subsequent potato raw materials, and avoids the potato raw materials from sticking with impurities due to the quality of the blanching water. This is conducive to ensuring the processing quality of potato products and ensuring the color and taste of potato products.
[0034] Understandably, when workers use external conveying equipment (such as chain conveyors) to transport potato raw materials into the blanching chamber 8, the potato raw materials fall into the cleaning component 5. Since the water supply component 4 can also draw blanching water from the heating chamber 7 and transport it to the cleaning component 5, the cleaning component 5 can clean the potato raw materials, thereby removing debris, skin, starch, and other impurities that adhered to the surface of the potato raw materials after the previous operations. This not only effectively reduces the rate of contamination of the blanching water and prevents the blanching water from becoming viscous due to starch, thus affecting the blanching effect, but also reduces the probability of clogging of the filter component 3, extends the service life of the filter component 3, reduces the maintenance frequency of the filter component 3, and effectively prevents impurities and residues from adhering to the surface of the potato products during the blanching process, ensuring the appearance and taste of the potato products. In addition, since the cleaning component 5 is connected to the heating chamber 7 through the return component 9, the return component 9 can be a filter commonly used in the prior art. This can clean the blanching water flowing out of the cleaning component 5 and allow the filtered blanching water to flow back into the heating chamber 7 through the pipeline. This not only enables efficient recycling of the blanching water, effectively reduces wastewater discharge, and significantly reduces production and processing costs, but also helps maintain the water balance in the tank 1, avoids temperature fluctuations caused by frequent water replenishment, and ensures the blanching efficiency of the potato raw materials.
[0035] It is worth noting that in the blanching device for potato processing of this utility model, a control cabinet is provided on one side of the tank 1. The control cabinet contains a control module that communicates with each component. The communication connection method is a mature existing technology and will not be described in detail here. This utility model only addresses the problem that existing blanching devices for potato processing are unable to achieve the recycling and reuse of blanching water, which not only increases production costs but also easily accelerates water quality deterioration, affecting the subsequent blanching effect and reducing processing quality. In addition, the blanched potato raw materials can also be transported to the next process using external conveying equipment, thereby ensuring the continuity of the potato product processing production line.
[0036] In one embodiment, a step is formed at one end of the partition 6. The filter assembly 3 includes a support 10 and a filter screen 11 disposed within the support 10. One end of the support 10 extends into the tank 1 and overlaps the step. A baffle 12 is provided at the other end of the support 10. A sealing ring and a handle are respectively provided on both sides of the baffle 12. Specifically, as shown... Figures 1 to 4 As shown, in the manufacturing process of this utility model's blanching device for potato processing, the operator can open an installation hole in the tank wall of the tank 1 so that one end of the support 10 can extend into the tank 1. Because the partition 6 has a step, the support 10 can be supported, allowing the support 10 and the filter screen 11 to be stably placed between the heating chamber 7 and the blanching chamber 8 to filter out impurities in the blanching water. The structural design is simple and reasonable. Understandably, since the other end of the support 10 is equipped with a baffle 12, the operator can detachably install the baffle 12 to the installation hole using threaded connections or other methods. The baffle 12 can cover the installation hole on the tank 1, thereby blocking the leakage path of the blanching water in the tank 1. Simultaneously, the sealing ring on the baffle 12 further improves the sealing of the installation hole, effectively preventing the blanching water in the tank 1 from leaking from the installation hole, ensuring reliable operation. In addition, by providing a handle on the baffle 12, it is easy for workers to remove or install the bracket 10 and filter screen 11 from the tank 1, which facilitates cleaning or replacing the filter screen 11. The operation is simple and the maintenance is convenient.
[0037] In one embodiment, the water supply assembly 4 includes a pump body 13, an inlet pipe 14, and an outlet pipe 15. The pump body 13 is detachably installed on one side of the tank 1. The pump body 13 is connected to the heating chamber 7 and the blanching chamber 8 through the inlet pipe 14 and the outlet pipe 15, respectively. A first valve 16 is provided on the inlet pipe 14 and the outlet pipe 15. Specifically, as shown... Figure 1 and Figure 3As shown, the pump body 13 can be installed on the side wall of the tank 1 by a threaded connection, which facilitates disassembly and assembly of the pump body 13 and is convenient for maintenance. Simultaneously, since the pump body 13 is connected to the heating chamber 7 and the blanching chamber 8 through the inlet pipe 14 and the outlet pipe 15 respectively, the pump body 13 can draw filtered clean blanching water from the heating chamber 7 and directionally transport it to the blanching chamber 8 for blanching the potato raw materials. The structural design is simple and reasonable. Furthermore, the first valve 16 installed on the inlet pipe 14 and the outlet pipe 15 allows the operator to independently adjust the flow rate or cut off the water flow, thereby realizing the start and stop of the blanching water circulation process and precise control of the flow rate, making operation simple and convenient.
[0038] In one embodiment, the water supply assembly 4 further includes a shower pipe 17 communicating with the outlet pipe 15. The shower pipe 17 extends along the width direction of the partition 6 and is disposed within the rinsing chamber 8, and a plurality of outlets are uniformly and spaced along its extension direction on the shower pipe 17. Specifically, as shown... Figure 1 and Figure 3 As shown, by adding a rinsing pipe 17 to one end of the liquid outlet pipe 15 and arranging the rinsing pipe 17 along the width direction of the partition 6, the high-temperature blanching water can form a continuous and stable water curtain through the evenly distributed liquid outlets. This not only ensures full coverage rinsing of the potato raw materials in the blanching chamber 8 and eliminates blanching dead corners, but also forms a uniform blanching water turbulence field in the blanching chamber 8, which improves heat exchange efficiency and prevents local overheating of the potato raw materials, making it reliable in use.
[0039] In one embodiment, the cleaning assembly 5 includes a receiving trough 18, a delivery pipe 19, and a rinsing pipe 20. The receiving trough 18 is detachably installed above the partition 6 and used to receive potato raw materials. The rinsing pipe 20 is disposed near the top of the receiving trough 18. The rinsing pipe 20 is connected to the outlet pipe 15 through the delivery pipe 19. A second valve 21 is disposed on the delivery pipe 19. A filter plate 22 is obliquely disposed near the bottom of the receiving trough 18. Specifically, as shown... Figures 1 to 4As shown, the receiving trough 18 can be installed above the partition 6 using a threaded connection or other methods to receive potato raw materials falling from the external conveying equipment. Since a filter plate 22 is obliquely arranged near the bottom of the receiving trough 18, the potato raw materials falling onto the filter plate 22 will naturally tumble into the blanching chamber 8 under gravity. The structural design is simple and reasonable. Simultaneously, a rinsing pipe 20 is installed near the top of the receiving trough 18, and the rinsing pipe 20 is connected to the outlet pipe 15 via a liquid delivery pipe 19. This allows blanching water to flow into the receiving trough 18 from the outlet pipe 15, the liquid delivery pipe 19, and the rinsing pipe 20. Workers can create several holes in the wall of the rinsing pipe 20 to flush the tumbling potato raw materials, thus achieving a pre-cleaning function and effectively removing debris, starch, and other impurities from the surface of the potato raw materials, ensuring the quality of the blanching water. Furthermore, a second valve 21 allows workers to control the rinsing flow rate of the potato raw materials through the rinsing pipe 20, making operation convenient.
[0040] In one embodiment, the bottom of the receiving trough 18 has a slope 23 and an outlet hole 24. The slope 23 slopes downwards towards the direction away from the blanching chamber 8. The outlet hole 24 is located at the bottom of the slope 23. A return flow assembly 9 is detachably installed at the outlet hole 24. The return flow assembly 9 includes a return pipe, a filter, and a one-way valve connected in sequence. The one-way valve is connected to the heating chamber 7. Specifically, as shown... Figures 1 to 3 As shown, by tilting the ramp 23 downwards towards the direction away from the blanching chamber 8, the blanching water after washing the potato raw materials can automatically collect at the outlet 24 at the bottom of the ramp under the action of gravity, preventing the blanching water from accumulating in the receiving tank 18 and ensuring the reuse of the blanching water. The structural design is ingenious and reasonable. Furthermore, since a return component 9 is detachably installed at the outlet 24, one end of the return pipe in the return component 9 is detachably connected to the outlet 24, and the other end of the return pipe is connected to the filter. The end of the filter away from the return pipe is connected to a one-way valve, and the one-way valve can be connected to the heating chamber 7 through a pipe. Thus, impurities generated during the washing process can be intercepted by the filter, preventing them from entering the heating chamber 7. The directional conduction characteristic of the one-way valve ensures that the blanching water can only flow back into the heating chamber 7 in one direction and will not backflow. This achieves efficient recycling of the blanching water and avoids secondary pollution of the water quality in the heating chamber 7 by impurities.
[0041] In one embodiment, the bottom of the tank 1 tapers from top to bottom and is equipped with a drain pipe 25 for communication with an external sewage system. Specifically, as shown... Figure 1 and Figure 4As shown, by gradually narrowing the bottom of the tank 1 from top to bottom, a gradually contracting guide channel can be formed, allowing deposited impurities to naturally accumulate towards the drain pipe 25 under gravity. The structural design is simple and reasonable. Furthermore, by connecting the drain pipe 25 to the external sewage system, it is convenient for staff to regularly replace the rinsing water in the tank 1, making the operation simple and convenient.
[0042] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A blanching device for potato processing comprising a tank (1) in which a heating assembly (2) is arranged, characterized in that, It also includes a filter assembly (3), a water supply assembly (4), and a cleaning assembly (5). A partition (6) is provided inside the tank (1) along its extension direction. The partition (6) divides the inner cavity of the tank (1) into a heating chamber (7) and a blanching chamber (8) that are interconnected. The filter assembly (3) for filtering out impurities in the blanching water is detachably installed on the partition (6). The filter assembly (3) is located between the heating chamber (7) and the blanching chamber (8). The water supply assembly (4) is provided on the tank (1) and is used to extract the blanching water in the heating chamber (7) and transport it to the blanching chamber (8) and the cleaning assembly (5). The cleaning assembly (5) is used to clean the potato raw materials, and the cleaning assembly (5) is connected to the heating chamber (7) through a return assembly (9).
2. The blanching device for processing potatoes according to claim 1, characterized in that One end of the partition (6) is formed with a step. The filter assembly (3) includes a bracket (10) and a filter screen (11) disposed in the bracket (10). One end of the bracket (10) extends into the tank (1) and overlaps the step. The other end of the bracket (10) is provided with a baffle (12). The baffle (12) is provided with a sealing ring and a handle on both sides.
3. The blanching device for potato processing according to claim 2, characterized in that, The water supply assembly (4) includes a pump body (13), an inlet pipe (14), and an outlet pipe (15). The pump body (13) is detachably installed on one side of the tank (1). The pump body (13) is connected to the heating chamber (7) and the blanching chamber (8) through the inlet pipe (14) and the outlet pipe (15), respectively. A first valve (16) is provided on the inlet pipe (14) and the outlet pipe (15).
4. The blanching device for processing potatoes according to claim 3, characterized in that The water supply assembly (4) also includes a shower pipe (17) connected to the liquid outlet pipe (15). The shower pipe (17) extends along the width direction of the partition (6) and is disposed in the rinsing chamber (8). The shower pipe (17) has a number of liquid outlets evenly and at intervals along its extension direction.
5. The blanching device for potato processing according to claim 4, characterized in that, The cleaning assembly (5) includes a receiving trough (18), an infusion pipe (19), and a rinsing pipe (20). The receiving trough (18) is detachably installed above the partition (6) and used to receive potato raw materials. The rinsing pipe (20) is provided near the top of the receiving trough (18). The rinsing pipe (20) is connected to the outlet pipe (15) through the infusion pipe (19). A second valve (21) is provided on the infusion pipe (19). A filter plate (22) is obliquely provided near the bottom of the receiving trough (18).
6. The blanching device for potato processing according to claim 5, characterized in that, The bottom of the receiving trough (18) is formed by a slope (23) and an outlet hole (24) is provided. The slope (23) is inclined from top to bottom away from the scalding chamber (8). The outlet hole (24) is located at the bottom of the slope (23). The reflux assembly (9) is detachably installed at the outlet hole (24). The reflux assembly (9) includes a reflux pipe, a filter and a one-way valve connected in sequence. The one-way valve is connected to the heating chamber (7).
7. A blanching apparatus for potato processing according to any one of claims 1-6, characterized in that, The bottom of the tank (1) is tapered from top to bottom and is equipped with a drain pipe (25) for connecting to an external sewage system.