A sealed conveying pipeline for crab roe processing production line

Abstract

This utility model discloses a sealed conveying pipeline for a crab roe processing production line, relating to the field of conveying pipeline technology. It includes a straight pipe with a bend fixedly connected to one end. A back-blowing mechanism is installed on the outer wall of the bend. The back-blowing mechanism includes a fixed plate, a solenoid valve, a connecting pipe, a connecting block, and spray heads. One end of the fixed plate is fixedly connected to the outer wall of the bend, and the connecting block is fixedly connected to the inner wall of the bend. This utility model, by setting a back-blowing mechanism at the bend, introduces an external compressed air source into the connecting block through the connecting pipe, allowing the airflow to be evenly distributed to two spray heads. The two spray heads face the upstream and downstream straight pipe sections of the bend, respectively. The bidirectional blowing by the spray heads removes crab roe residue from the inside of the bend, preventing spoilage and microbial growth, reducing the risk of product contamination. It also pre-cleans the starting ends of the upstream and downstream straight pipe sections, effectively reducing the risk of pipeline blockage.

Description

Technical Field

[0001] This utility model relates to the field of conveying pipeline technology, and in particular to a sealed conveying pipeline for a crab roe processing production line. Background Technology

[0002] Crab roe, as a high-value-added raw material for aquatic product processing, has the characteristics of high viscosity, rich in protein, and easy to oxidize and deteriorate. Its processing requires a much higher level of sealing and residue prevention in the conveying system pipelines than ordinary food materials.

[0003] However, in the existing technology, crab roe tends to accumulate in the bends of existing conveying pipes during the conveying process, which can easily lead to blockages and affect the continuous conveying of crab roe. Furthermore, the residual crab roe is prone to spoilage and the growth of microorganisms, affecting the quality of the crab roe. Subsequent manual disassembly, unblocking, and cleaning are required. Utility Model Content

[0004] The purpose of this invention is to solve the problems that existing conveying pipelines are prone to crab roe stagnation in the bends of the pipes during the conveying process, which can easily lead to blockages and affect the continuous conveying of crab roe. Furthermore, the residual crab roe is prone to spoilage and the growth of microorganisms, affecting the quality of the crab roe, and subsequent manual disassembly, unblocking and cleaning are required. Therefore, a sealed conveying pipeline for a crab roe processing production line is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a sealed conveying pipe for a crab roe processing production line, comprising a straight pipe, one end of which is fixedly connected to a bend, and a back-blowing mechanism is installed on the outer wall of the bend of the bend. The back-blowing mechanism includes a fixed plate, a solenoid valve, a connecting pipe, a connecting block, and a spray head. One end of the fixed plate is fixedly connected to the outer wall of the bend, and the connecting block is fixedly connected to the inner wall of the bend. The bottom end of the connecting pipe penetrates the outer wall of the bend and communicates with the interior of the connecting block. Two spray heads are provided, and the two spray heads are respectively fixedly connected to both ends of the connecting block.

[0006] Preferably, both ends of the straight pipe are fixedly connected to sealing joints, and the end face of the sealing joint is provided with a insertion interface. A sealing ring is fixedly connected to the inner wall of the insertion interface, and one end of the bent pipe is inserted into the inner wall of the insertion interface.

[0007] Preferably, a sealing flange is fixedly connected to the outer wall of one end of the bend, and a sealing plate is provided between the sealing flange and the sealing joint. The sealing plate is sleeved on the outer wall of the bend, and the sealing flange and the sealing joint are installed by bolts.

[0008] Preferably, a sealing gasket is provided at one end of the inner wall of the insertion interface, and the sealing gasket is in contact with the end face of the bend.

[0009] Preferably, the main body of the straight pipe is composed of an outer protective layer, a reinforcing layer and an inner layer, wherein the reinforcing layer is fixedly connected to the outer wall of the inner layer and the outer protective layer is fixedly connected to the outer wall of the reinforcing layer.

[0010] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, a back-blowing mechanism is set at the bend, and an external compressed air source is introduced into the connecting block through the connecting pipe, so that the airflow is evenly distributed to the two spray heads. The two spray heads are respectively directed towards the upstream and downstream straight pipe sections of the bend. By using the spray heads to blow in both directions, the crab roe residue on the inside of the bend is removed, which prevents the residual material from deteriorating and breeding microorganisms, reducing the risk of product contamination. At the same time, the starting ends of the upstream and downstream straight pipe sections are pre-cleaned, which effectively reduces the risk of pipeline blockage.

[0011] 2. In this utility model, the sealing plate is pressed between the sealing joint and the sealing flange of the bend to form the first radial seal. After one end of the bend is inserted into the insertion interface, the sealing ring on the inner wall is tightly fitted with the outer wall of the bend to form the second circumferential seal. The sealing gasket on the inner wall of the insertion interface contacts the end face of the bend to form the third axial seal. Through the synergistic effect of the triple seals, the leakage rate at the pipe connection is reduced, and the pollution caused by the leakage of crab roe is completely avoided. Attached Figure Description

[0012] Figure 1 A three-dimensional structural diagram of a sealed conveying pipeline for a crab roe processing production line is provided for this utility model. Figure 2 This utility model proposes a sealed conveying pipe for a crab roe processing production line. Figure 1 Enlarged view of the structure at point A in the middle; Figure 3 This utility model provides a schematic diagram of the internal three-dimensional structure of the sealing joint of the sealing conveying pipeline in a crab roe processing production line. Figure 4 This utility model provides a cross-sectional view of the internal structure of a straight pipe for sealing and conveying in a crab roe processing production line.

[0013] Legend: 1. Straight pipe; 11. Sealing joint; 12. Insertion interface; 13. Sealing ring; 14. Sealing gasket; 15. Outer protective layer; 16. Reinforcing layer; 17. Inner layer; 2. Bend; 21. Sealing flange; 3. Backflush mechanism; 31. Fixing plate; 32. Solenoid valve; 33. Connecting pipe; 34. Connecting block; 35. Spray head; 4. Sealing plate. Detailed Implementation

[0014] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0015] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0016] Example 1: As Figure 1 - Figure 4 As shown, this utility model provides a sealed conveying pipe for a crab roe processing production line, including a straight pipe 1. One end of the straight pipe 1 is fixedly connected to a bend 2. A backflushing mechanism 3 is installed on the outer wall of the bend of the bend 2. The backflushing mechanism 3 includes a fixed plate 31, a solenoid valve 32, a connecting pipe 33, a connecting block 34, and a spray head 35. One end of the fixed plate 31 is fixedly connected to the outer wall of the bend 2. The connecting block 34 is fixedly connected to the inner wall of the bend 2. The bottom end of the connecting pipe 33 penetrates the outer wall of the bend 2 and communicates with the inside of the connecting block 34. Two spray heads 35 are provided, and the two spray heads 35 are respectively fixedly connected to both ends of the connecting block 34.

[0017] The specific settings and functions of this embodiment are described in detail below. The fixed plate 31 provides stable support for the backflushing mechanism 3, ensuring that it does not shift when the pipeline vibrates or the pressure fluctuates, thus ensuring the stability of the backflushing. The connecting pipe 33 introduces the external compressed air source into the connecting block 34, which is fixed to the inner wall of the bend 2. Its internal flow channel allows the airflow to be evenly distributed to the two spray heads 35. The two spray heads 35 are respectively directed towards the upstream and downstream straight pipe sections of the bend 2, with a spray angle of 45° to the pipe wall, forming a bidirectional purging effect. This not only removes the crab roe residue on the inside of the bend, but also pre-cleans the starting ends of the upstream and downstream straight pipe sections, effectively reducing the risk of pipeline blockage and reducing the amount of material residue at the bend 2.

[0018] Example 2: Figure 1 - Figure 4As shown, both ends of the straight pipe 1 are fixedly connected to sealing joints 11. The end face of the sealing joint 11 is provided with a through-hole interface 12. A sealing ring 13 is fixedly connected to the inner wall of the through-hole interface 12. One end of the bent pipe 2 is inserted into the inner wall of the through-hole interface 12. A sealing flange 21 is fixedly connected to the outer wall of one end of the bent pipe 2. A sealing plate 4 is provided between the sealing flange 21 and the sealing joint 11. The sealing plate 4 is sleeved on the outer wall of the bent pipe 2. The sealing flange 21 and the sealing joint 11 are installed by bolts. A sealing gasket 14 is provided at one end of the inner wall of the through-hole interface 12. The sealing gasket 14 is in contact with the end face of the bent pipe 2. The main body of the straight pipe 1 is composed of an outer protective layer 15, a reinforcing layer 16 and an inner layer 17. The reinforcing layer 16 is fixedly connected to the outer wall of the inner layer 17, and the outer protective layer 15 is fixedly connected to the outer wall of the reinforcing layer 16.

[0019] The overall effect of this embodiment is as follows: when the sealing joints 11 at both ends of the straight pipe 1 are bolted to the sealing flanges 21 of the bend pipe 2, the sealing plate 4 is pressed between them, forming the first radial seal. After one end of the bend pipe 2 is inserted into the insertion interface 12, the sealing ring 13 on the inner wall fits tightly against the outer wall of the bend pipe, forming the second circumferential seal. The sealing gasket 14 on the inner wall of the insertion interface 12 contacts the end face of the bend pipe 2, forming the third axial seal. Through the synergistic effect of the triple seals, the leakage rate at the pipe connection is reduced, and the leakage and pollution of crab roe are completely avoided. The inner layer 17 of the straight pipe 1 is made of food-grade 316L stainless steel, with a smooth surface that reduces the adhesion of crab roe and is resistant to acid and alkali corrosion, making it suitable for CIP cleaning. The reinforcing layer 16 is a spirally wound stainless steel wire, which improves the pipe's resistance to internal pressure and meets the pressure requirements when transporting high-viscosity crab roe. The outer protective layer 15 is a 2mm thick weather-resistant PVC, which effectively isolates external oil, water vapor and mechanical collisions, extending the service life of the pipe.

[0020] The usage and working principle of this device are as follows: During assembly, insert one end of the bend 2 into the insertion interface 12 of the straight pipe 1, so that the end face of the bend 2 fits against the sealing gasket 14. After putting on the sealing plate 4, tighten the sealing flange 21 and the sealing joint 11 with bolts to ensure that the triple sealing structure is effective. When the conveying system is started, the crab roe enters the straight pipe 1 from the upstream equipment, turns through the bend 2 and is conveyed to the downstream process. The flow rate is controlled by the variable frequency pump. During operation, the solenoid valve 32 of the backflushing mechanism 3 opens according to the preset program. Compressed air is sprayed out from the two spray heads 35 through the connecting pipe 33 and the connecting block 34 to remove the adhering material in the bend 2 and the nearby straight pipe section. After stopping the machine, turn off the conveying pump and start the backflushing mechanism 3 again for thorough purging. Then, the cleaning fluid is introduced through the CIP interface and flows through the inner layer 17 to complete the pipeline cleaning.

[0021] The device reduces the flow resistance of crab roe through the smooth surface of the inner layer 17, and the reinforcing layer 16 ensures the structural stability of the pipeline under the conveying pressure; the back-blowing mechanism 3 at the bend 2 uses directional airflow to solve the problem of high viscosity material retention; the multi-seal system composed of sealing joint 11, sealing flange 21, etc. forms a dead-angle-free seal at the pipeline connection, preventing material leakage and external pollution.

[0022] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A sealed conveying pipe for a crab roe processing production line, comprising a straight pipe (1), characterized in that: One end of the straight pipe (1) is fixedly connected to a bend pipe (2). A back-blowing mechanism (3) is installed on the outer wall of the bend of the bend pipe (2). The back-blowing mechanism (3) includes a fixed plate (31), a solenoid valve (32), a connecting pipe (33), a connecting block (34), and a spray head (35). One end of the fixed plate (31) is fixedly connected to the outer wall of the bend pipe (2). The connecting block (34) is fixedly connected to the inner wall of the bend pipe (2). The bottom end of the connecting pipe (33) penetrates the outer wall of the bend pipe (2) and communicates with the inside of the connecting block (34). There are two spray heads (35). The two spray heads (35) are fixedly connected to both ends of the connecting block (34).

2. The sealed conveying pipeline of a crab roe processing production line according to claim 1, characterized in that: Both ends of the straight pipe (1) are fixedly connected to sealing joints (11), and the end face of the sealing joint (11) is provided with a plug interface (12). A sealing ring (13) is fixedly connected to the inner wall of the plug interface (12), and one end of the bent pipe (2) is inserted into the inner wall of the plug interface (12).

3. The sealed conveying pipeline of a crab roe processing production line according to claim 2, characterized in that: A sealing flange (21) is fixedly connected to the outer wall of one end of the bend (2). A sealing plate (4) is provided between the sealing flange (21) and the sealing joint (11). The sealing plate (4) is sleeved on the outer wall of the bend (2). The sealing flange (21) and the sealing joint (11) are installed by bolts.

4. The sealed conveying pipeline of a crab roe processing production line according to claim 2, characterized in that: A sealing gasket (14) is provided at one end of the inner wall of the insertion interface (12), and the sealing gasket (14) is in contact with the end face of the bend (2).

5. The sealed conveying pipeline of a crab roe processing production line according to claim 1, characterized in that: The main body of the straight pipe (1) is composed of an outer protective layer (15), a reinforcing layer (16) and an inner layer (17). The reinforcing layer (16) is fixedly connected to the outer wall of the inner layer (17), and the outer protective layer (15) is fixedly connected to the outer wall of the reinforcing layer (16).

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