Food grade pig blood collection device

Abstract

The utility model belongs to live pig slaughtering technical field, concretely relates to a food grade pig blood collecting device. Including pig blood collecting subassembly, and the conveying stroke covers the conveying assembly of pig blood collecting device, the conveying assembly includes transmission chain and two or more than two above pawl of fixed establishment on transmission chain, form the clamping space for clamping live pig ham between adjacent pawl, still include the drive arrangement for driving conveying assembly. The utility model through pig blood collecting subassembly and the cooperation of conveying assembly, make full use of the change of live pig blood pressure and collect the clean pig blood without pollution, can reach the standard of food grade. The utility model structure is simple, can set up on the original production line fast, the food grade pig blood of collection has simplified the subsequent filtration sterilization etc. Step, has increased the economic benefit, is suitable for promoting in practice.

Description

Technical Field

[0001] This utility model belongs to the field of pig slaughtering technology, specifically relating to a food-grade pig blood collection device. Background Technology

[0002] Pig blood is an important byproduct of pig slaughtering, rich in protein, minerals, and various bioactive substances. In the food industry, processed pig blood can be made into edible products such as blood tofu and blood sausage, or its plasma proteins and hemoglobin can be extracted and used as highly efficient functional protein additives, widely applied in meat products and baked goods to improve texture, water retention, and nutrition. The extracted heme iron is also an ideal nutritional fortifier. High-quality, clean pig blood is the foundation for its high-value utilization in the food and pharmaceutical fields; otherwise, it can only be used as feed or become a highly polluting waste, resulting in huge resource waste and environmental costs.

[0003] In existing pig slaughtering production lines, the traditional method of blood collection involves anesthetizing or suffocating the pig and then stabbing it in the neck with a knife to bleed it. A collection trough is then installed below the chain conveyor to collect the flowing blood. For example, a pig blood collection device for slaughterhouses disclosed in patent CN218126672U collects blood by fixing the pig to a workbench and allowing it to automatically flow into a connecting pipe with a filter screen. However, as the blood flows from the neck down to the collection trough, some of it comes into contact with unsanitary areas such as the pig's neck and hooves. Furthermore, the pig may experience incontinence after being stabbed, causing some excrement or vomit to fall into the collection trough. Even with filtration devices like filters, the problem of blood contamination cannot be solved. Without deep filtration and sterilization, the blood collected in this way can only be used as feed, resulting in low added value and significant waste. Subsequent physicochemical treatment would affect the quality of the blood itself and be costly. Utility Model Content

[0004] The present invention aims to overcome the shortcomings of existing technologies where pig blood collected during pig slaughter is easily contaminated and cannot be directly used as a food-grade raw material, and provides a food-grade pig blood collection device to overcome the above-mentioned shortcomings.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0006] It includes a pig blood collection assembly and a conveying assembly that covers the pig blood collection assembly;

[0007] The conveying assembly includes a transmission chain and two or more teeth fixed on the transmission chain, with adjacent teeth forming a clamping space for clamping the pig's leg.

[0008] It also includes a drive device for driving the transmission chain.

[0009] After anesthetizing pigs with electric shock or carbon dioxide, there are two traditional methods for blood collection. One method involves fixing the pig to a flat surface and severing its carotid artery. Blood then flows into the surface below the pig and into an output tube. This method is simple to operate and suitable for small slaughterhouses. However, because the blood is in direct contact with the pig on the flat surface, the blood flowing into the output tube carries impurities such as pig hair, making it unsuitable for direct food processing. The other method involves suspending the stunned pig by its hind legs and stabbing it in the neck. Blood automatically flows out through the stab wound and into a collection trough below. This method reduces the area of ​​direct contact between the pig and the blood and can be integrated into existing slaughtering lines, making it the primary blood collection method in medium to large-scale slaughterhouses. However, the pig blood collected in this way still cannot be used directly as a food ingredient. First, the pig blood flowing from the neck will pass through relatively dirty parts such as the neck and front hooves. Second, after being killed, the pig will have an incontinence emergency response, causing some excrement or vomit to fall into the collection tank below, which means that the collected pig blood still needs to be filtered and sterilized, which significantly increases the production cost.

[0010] In practice, the applicant found that after stabbing a pig, due to blood pressure, the blood flowing from the stabbing wound is either jet-like or drip-like, and the jet-like blood is unlikely to come into contact with the neck and hooves. Therefore, this invention, through the cooperation of a blood collection component and a conveying component, achieves the collection of clean pig blood that meets food-grade standards. The blood collection device of this invention can be installed in an existing pig slaughtering production line. The stunned pig's hind legs are suspended, while its front legs fall naturally. As the pig passes through the blood collection device, it is stabbed in the neck by machine or manually, and its front legs are fixed in the clamping space between the teeth, making the angle between the front legs and the torso approximately 90°, thus keeping the hooves away from the parabolic jet of blood and preventing contamination. Under the action of the drive device, the pig moves along the extension direction of the blood collection device, during which the jet of clean blood enters the adjacent blood collection device. As blood is lost, the blood flowing from the puncture wound is either flowing or dripping. At this point, the pig blood, having come into contact with the pig's neck and other parts, does not meet the requirements for food-grade material. The conveyor then removes the pig from the blood collection assembly, ensuring that the assembly collects only clean blood. Furthermore, the teeth at the bend in the transmission chain automatically open, allowing the pig's legs to automatically leave the clamping space, and the pig enters the next stage of the slaughtering production line. In practice, the operating speed of the conveyor assembly needs to be matched with the conveying speed of the pig suspension system to prevent the pig's rotation from preventing blood from entering the blood collection assembly.

[0011] Preferably, the pig blood collection assembly includes a food-grade pig blood collection tank, the opening of which is equipped with a baffle to block the sprayed pig blood. As mentioned above, the pig blood collection assembly needs to collect sprayed pig blood; by setting a baffle directly opposite the stabbing wound, it can effectively collect pig blood with greater spray force.

[0012] As a further preferred embodiment, the bottom of the pig blood collection tank is inclined towards the center to form a conical opening, and an output pipe is provided at the conical opening.

[0013] As a further preferred embodiment, the pig blood collection assembly also includes a secondary pig blood collection trough disposed below the food-grade pig blood collection trough. In the initial stage of pig slaughter, although the blood is mainly sprayed, some blood still drips from the puncture wound. To prevent waste of pig blood and facilitate subsequent cleaning, this invention provides a secondary pig blood collection trough below the food-grade pig blood collection trough to collect the dripping pig blood. The secondary pig blood collection trough can be further extended to collect the pig blood dripping from the pig as it leaves the food-grade pig blood collection trough.

[0014] As a further preferred embodiment, the edge of the food-grade pig blood collection tank is equipped with an anticoagulant spraying device.

[0015] Preferably, the locking tooth includes a support portion fixed to the transmission chain and a locking ring fixed to the top of the support portion. This invention provides a preferred embodiment of the locking tooth, in which the support portion is directly fixed to the tooth base of the transmission chain by welding or other methods, and the top of the support portion is bent into a ring as a locking ring, creating a closed opening between adjacent locking rings to prevent the pig leg from falling off during transport.

[0016] As a further preferred embodiment, the conveying assembly also includes a guide block for guiding the drive chain, and a protective cover covering the guide block.

[0017] As a further preferred embodiment, the pig blood collection assembly is equipped with hooks, and the protective cover is equipped with hanging rings for attaching to the hooks. This design of hooks and hanging rings allows the pig blood collection assembly and the conveying assembly to be quickly assembled into a single unit, facilitating subsequent adjustments to the collection device.

[0018] As a further preferred embodiment, the conveying assembly is fixedly provided with a support frame for supporting the conveying assembly.

[0019] As a further preferred embodiment, the support frame is equipped with an adjustment component for adjusting the height of the conveying assembly. Through the adjustment component and the aforementioned hook and loop design, the heights of the pig blood collection assembly and the conveying assembly can be adjusted simultaneously, thereby adapting to different batches of pigs of different sizes.

[0020] Therefore, this utility model has the following beneficial effects:

[0021] (1) This utility model uses the combination of pig blood collection component and conveying component to make full use of the changes in pig blood pressure to collect clean pig blood that is not contaminated, which can meet the food grade standard.

[0022] (2) By combining the secondary pig blood collection tank of the preferred scheme with the food-grade pig blood collection tank, this utility model not only reduces the waste of pig blood, but also realizes the collection of pig blood throughout the entire process based on the original production line.

[0023] (3) This utility model has a simple structure and can be quickly set up on the original production line. The collected food-grade pig blood simplifies the subsequent filtration and sterilization steps, increases economic benefits, and is suitable for promotion in practice. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a food-grade pig blood collection device according to Embodiment 1 of this utility model.

[0025] Figure 2 This is a front view of a food-grade pig blood collection device according to Embodiment 2 of this utility model.

[0026] Figure 3 This is a partial side view of a food-grade pig blood collection device according to Embodiment 2 of this utility model.

[0027] Figure 4 This is a partially enlarged view of the conveying component of a food-grade pig blood collection device according to Embodiment 2 of this utility model.

[0028] Figure 5 This is a schematic diagram of the operation of a food-grade pig blood collection device according to Embodiment 2 of this utility model.

[0029] Figure 6 This is a side view of a food-grade pig blood collection device in operation according to Embodiment 2 of this utility model.

[0030] In the diagram: 1. Drive unit; 2. Support frame; 3. Adjustment component; 10. Pig blood collection component; 11. Food-grade pig blood collection tank; 12. Baffle; 13. Conical opening; 14. Output pipe; 15. Secondary pig blood collection tank; 20. Conveying component; 21. Drive chain; 22. Clamping tooth; 23. Clamping space; 24. Guide block; 25. Protective cover; 26. Hook; 27. Hanging ring; 30. Anticoagulant spraying device; 221. Support part; 222. Snap ring. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Those skilled in the art will be able to implement the present invention based on these descriptions. Furthermore, the embodiments of the present invention described below are generally only a part of the embodiments of the present invention, and not all of the embodiments. Therefore, all other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0032] Example 1:

[0033] like Figure 1 As shown, this embodiment of a food-grade pig blood collection device employs a double-layer pig blood collection structure. The upper layer is a narrower and shorter food-grade pig blood collection trough 11, and the lower layer is a wider and longer secondary pig blood collection trough 15, making the collection range of the secondary pig blood collection trough 15 larger than that of the food-grade pig blood collection trough 11. The bottom of the food-grade pig blood collection trough 11 slopes towards the center, forming a funnel-shaped conical opening 13 at its lowest point. An output pipe 14 is provided at the conical opening 13 for connecting to other storage devices. Furthermore, to prevent the collected pig blood from coagulating rapidly, this embodiment provides an anticoagulant spraying device 30 at the edge of the food-grade pig blood collection trough 11 for spraying anticoagulant while collecting pig blood. In this embodiment, a conveying assembly 20 is directly welded to the side wall of the food-grade pig blood collection tank 11. The conveying assembly 20 includes a drive chain 21 that surrounds the side wall of the food-grade pig blood collection tank 11. Clamping teeth 22 are welded at intervals to the links of the drive chain 21, thereby forming clamping spaces 23 for clamping pig legs between adjacent clamping teeth 22. The drive chain 21 is powered by a motor located at the rear of the conveying assembly, which serves as a drive device 1. Simultaneously, a baffle 12 inclined towards the opening of the food-grade pig blood collection tank 11 is also provided between the conveying assembly 20 and the food-grade pig blood collection tank 11. Figure 1 The direction from left to right is the conveying direction of the conveying component 20. At the edge of the food-grade pig blood collection tank 11, it can be seen that because the transmission chain 21 is in the shape of a ring, the teeth 22 are spread apart to form a large clamping space 23. Workers can easily clamp the front legs of the suspended pig into the clamping space 23 and cut a stabbing incision in the pig's neck. At this time, the pig blood spraying from the neck is blocked by the baffle 12, so that the pig blood flows into the food-grade pig blood collection tank 11. At the same time, the pig blood that comes into contact with the pig's neck flows into the secondary pig blood collection tank 15 below.

[0034] As the pig's blood pressure decreases, the distance of the blood spraying from the neck puncture wound becomes shorter and shorter. When the sprayed blood is insufficient to enter the food-grade pig blood collection tank 11, the pig is transported to the other edge of the food-grade pig blood collection tank 11 by the conveying component 20. Here, the conveying component 20 expands the clamping space 23 through the same structure, releasing the pig's front legs. At this time, the blood flowing from the puncture wound naturally falls into the secondary pig blood collection tank 15. The suspended pig enters the subsequent production process to complete the collection of food-grade pig blood.

[0035] Example 2:

[0036] like Figure 2 The image shown is a front view of a food-grade pig blood collection device according to this embodiment. Compared to Embodiment 1, the collection device in this embodiment, through the setting of the support frame 2, facilitates the movement of the collection device and can be quickly integrated into existing pig slaughtering production lines. The support frame 2 supports the upper pig blood collection component 10 and conveying component 20 through the adjusting component 3, and sets the above components above the secondary pig blood collection tank 15. The specific connection method is as follows... Figure 3 As shown, the adjusting component 3 is welded to the protective cover 25. A set of guide blocks 24 are fixed at the top and bottom inside the protective cover 25, ensuring that the edge of the transmission chain 21 is precisely accommodated in the groove of the guide block 24, thus preventing the transmission chain 21 from dislodging during operation. Simultaneously, the locking teeth 22 fixed to the transmission chain 21 can also extend from between the guide blocks 24. Two sets of hanging rings 27 are also provided on the protective cover 25, and corresponding hooks 26 are provided on the side wall of the food-grade pig blood collection tank 11. During use, the hooks 26 are snapped into the hanging rings 27 for quick installation. For subsequent cleaning, the food-grade pig blood collection tank 11 can be lifted to separate the pig blood collection component 10 from the conveying component 20.

[0037] To better describe the working principle of the clamping teeth 22 in the conveying assembly 20 of this embodiment, as follows: Figure 4 The figure shows a side view of one end of the conveying assembly. As shown, the drive device 1 drives the transmission chain 21, which is engaged with the gear, to move by rotating the drive gear. Clamping teeth 22 are welded to the gear segments of the transmission chain 21 at intervals. In this embodiment, the clamping teeth 22 are integrally formed from steel plates, with the longer lower portion welded to the clamping teeth 22 as a support part 221, and the top end bent into a circle to form a clamping ring 222. When the transmission chain 21 runs in a straight line, the support parts 221 of adjacent clamping teeth 22 are parallel to each other, and the distance between the clamping rings 222 is relatively close, making it difficult for the pig leg clamped in the clamping space 23 to fall off. When the transmission chain 21 reaches the gear, its running trajectory is circular, making the distance between the clamping rings 222 greater, forming an open clamping space 23, at which point the pig leg can easily leave.

[0038] like Figure 5, 6 The diagram shown is a schematic representation of the operation of a food-grade pig blood collection device on a pig slaughtering production line according to this embodiment. Figure 5 As shown, the direction of operation of the pig slaughtering line is from right to left. The secondary pig blood collection tank 15 runs through the entire pig blood collection area. When the suspended pig reaches the edge of the food-grade pig blood collection tank 11, the worker uses a knife to create a stabbing incision in the pig's neck. At the same time, because the clamping space 23 is open, the worker can quickly place the pig's forelegs into the clamping space 23.

[0039] like Figure 6 The diagram shows the working state of the food-grade pig blood collection tank 11 during collection. At this time, the pig's forelegs are fixed by the locking teeth 22, making the forelegs perpendicular to the torso, thus exposing the pig's neck. In practice, the height of the collection device can be adjusted by adjusting the adjustment component 3 on the support frame 2 to ensure that the pig blood sprayed from the stabbing wound falls into the food-grade pig blood collection tank 11. The blood sprayed from the stabbing wound on the pig's neck can be divided into three parts: a small amount of blood sprayed at a higher height is intercepted by the baffle 12 and falls into the food-grade pig blood collection tank 11; most of the blood is ejected in a parabolic trajectory and directly enters the food-grade pig blood collection tank 11; a very small portion of the blood flows down the pig's neck, and this portion is easily contaminated and falls into the secondary pig blood collection tank 15 below. When blood pressure is low, most of the pig's blood flows down the neck. At this time, the pig leaves the food-grade pig blood collection area under the action of the conveying component 20 and the pig suspension system. Through the structure of the aforementioned locking teeth 22, the pig's legs automatically leave the clamping space 23 without manual operation, thus completing the collection of food-grade pig blood.

[0040] The embodiments of this specification have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical applications, or technological improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A food-grade pig blood collection device, characterized in that: It includes a pig blood collection assembly (10) and a conveying assembly (20) whose conveying stroke covers the pig blood collection assembly (10); The conveying assembly (20) includes a transmission chain (21) and two or more teeth (22) fixed on the transmission chain (21), with a clamping space (23) formed between adjacent teeth (22) for clamping the pig's leg. It also includes a drive unit (1) for driving the transmission chain (21).

2. The food-grade pig blood collection device according to claim 1, characterized in that: The pig blood collection assembly (10) includes a food-grade pig blood collection tank (11), and the opening of the food-grade pig blood collection tank (11) is provided with a baffle (12) for blocking the spraying of pig blood.

3. The food-grade pig blood collection device according to claim 2, characterized in that: The bottom of the food-grade pig blood collection tank (11) is inclined towards the center to form a conical opening (13), and an output pipe (14) is provided at the conical opening (13).

4. The food-grade pig blood collection device according to claim 2, characterized in that: The pig blood collection assembly (10) also includes a secondary pig blood collection tank (15) located below the food-grade pig blood collection tank (11).

5. The food-grade pig blood collection device according to claim 2, characterized in that: The food-grade pig blood collection tank (11) is equipped with an anticoagulant spraying device (30).

6. The food-grade pig blood collection device according to claim 1, characterized in that: The locking tooth (22) includes a support part (221) fixed to the transmission chain (21) and a locking ring (222) fixed to the top of the support part (221).

7. The food-grade pig blood collection device according to claim 6, characterized in that: The conveying assembly (20) also includes a guide block (24) for guiding the drive chain (21) and a protective cover (25) covering the guide block (24).

8. The food-grade pig blood collection device according to claim 7, characterized in that: The pig blood collection assembly (10) is provided with a hook (26), and the protective cover (25) is provided with a hanging ring (27) for attaching the hook (26).

9. A food-grade pig blood collection device according to claim 8, characterized in that: The conveying assembly (20) is fixed with a support frame (2) for supporting the conveying assembly (20).

10. A food-grade pig blood collection device according to claim 9, characterized in that: The support frame (2) is provided with an adjustment component (3) for adjusting the height of the conveying component (20).

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