An energy-saving pre-cooling suspension system for pig carcasses

Abstract

This utility model belongs to the technical field of warehouse pre-cooling equipment, specifically a pig carcass pre-cooling suspension energy-saving system. It includes an infeed conveyor belt, an outfeed conveyor belt, a U-shaped drying trough, and a ring-shaped cable chain. The infeed conveyor belt transfers the pig carcass to the U-shaped drying trough, which removes surface water from the carcass. The ring-shaped cable chain hoists the carcass from the infeed conveyor belt through the U-shaped drying trough to remove surface water and transfer it to the outfeed conveyor belt. The outfeed conveyor belt transports the carcass, now with surface water removed, to the next process. An automatic feeding device is installed on the ring-shaped cable chain. By combining efficient drying with automated hoisting, this system solves the core problems of traditional pig carcass pre-cooling processes, such as water separation and heat dissipation, low efficiency, high energy consumption, heavy reliance on manual labor, and uneven quality. It improves pre-cooling efficiency and automation, significantly reducing energy consumption and labor costs.

Description

Technical Field

[0001] This utility model relates to the technical field of warehouse pre-cooling equipment, specifically a pig carcass pre-cooling suspension energy-saving system. Background Technology

[0002] Pre-cooling of pig carcasses after slaughter is a crucial step in ensuring meat quality and safety. Traditional pre-cooling processes use suspended cold storage for centralized cooling, which suffers from three major technical bottlenecks: First, residual moisture on the carcass surface forms an insulating layer, severely hindering heat exchange efficiency and resulting in a core temperature taking 18-24 hours to reach the target level; second, manual handling and unloading of carcasses requires frequent opening and closing of the cold storage, leading to a cold air loss rate of over 30%; and third, static suspension causes uneven airflow distribution among carcasses, with local temperature differences exceeding 5°C, affecting quality uniformity. Existing improved technologies, such as spray pre-cooling or strong air systems, can accelerate cooling, but energy consumption increases by more than 45%, and the "thermal resistance effect" caused by moisture retention remains unresolved. Furthermore, low automation means that labor costs still account for 25% of the total cost.

[0003] The industry is currently attempting to pre-treat surface moisture through independent air-drying stations, but these often employ intermittent conveyor belts or fixed air tunnels, which have significant drawbacks: on the one hand, the carcass transfer process poses a risk of secondary contamination, and the equipment footprint increases by 40%; on the other hand, the traditional segmented air-drying and pre-cooling operations lead to cumulative energy consumption. Utility Model Content

[0004] To address the shortcomings of existing technologies and improve the efficiency of surface moisture removal during pre-cooling while simultaneously increasing automation, this invention provides an energy-saving pre-cooling suspension system for pig carcasses. The system includes an infeed conveyor belt, an outfeed conveyor belt, a U-shaped drying trough, and a ring-shaped cable chain. The infeed conveyor belt transfers the pig carcasses to the U-shaped drying trough, which removes surface water from the carcasses. The ring-shaped cable chain hoists the carcasses from the infeed conveyor belt through the U-shaped drying trough to remove surface water and then transfers them to the outfeed conveyor belt. The outfeed conveyor belt transports the carcasses, now with surface water removed, to the next process. An automatic feeding device is installed on the ring-shaped cable chain.

[0005] The automatic feeding device includes a mounting base, a hook, and a limiting frame. Multiple mounting bases are installed at intervals along the circular drag chain, and a hook is rotatably mounted on each mounting base. The hook can rotate relative to the mounting base as the circular drag chain travels. A limiting frame is provided above the feeding conveyor belt to change the direction of the hook. When the mounting base moves along the circular drag chain to above the feeding conveyor belt, the hook rotates along the limiting frame until the hook tip is parallel to the transmission direction of the feeding conveyor belt.

[0006] The limiting frame is a symmetrically arranged double-rail structure with a clearance groove in the middle, which facilitates the passage of the hook. The limiting frame includes a horizontal part and an inclined part. The hook is provided with a limiting rod extending to both ends. The top of the horizontal part is tangent to the bottom of the limiting rod of the hook in a naturally hanging state. The inclined part has an upward tilt angle relative to the horizontal part and is located at the end of the mounting base away from the horizontal part.

[0007] In a preferred embodiment, the feeding conveyor belt is arranged at an upward inclination, and the discharging conveyor belt is arranged at an upward inclination with a surface linear velocity greater than that of the annular drag chain.

[0008] Each of the limiting rods is rotatably mounted with a wheel, and each wheel is a conical wheel structure with a large-diameter end on the inner side.

[0009] Compared with the prior art, this utility model provides an energy-saving system for pre-cooling and suspending pig carcasses, which has the following beneficial effects:

[0010] By combining efficient air drying with automated hoisting, this method solves the core problems of traditional pig carcass precooling processes, such as water-cooled heat separation, low efficiency, high energy consumption, heavy reliance on manual labor, and uneven quality. It improves precooling efficiency and automation levels, significantly reducing energy consumption and labor costs. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0012] Figure 2 for Figure 1 A magnified view of a portion of the image;

[0013] Figure 3 This is a schematic diagram illustrating the working principle of the limit frame of this utility model.

[0014] In the diagram: 1. Feed conveyor belt; 2. Discharge conveyor belt; 3. U-shaped drying trough; 4. Circular drag chain; 5. Mounting base; 6. Hook; 7. Limiting rod; 8. Limiting frame; 9. Rotary wheel; 10. Horizontal section; 11. Inclined section; 12. Clearance groove. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Example

[0017] The following is combined with Figures 1 to 3This application introduces an energy-saving pre-cooling suspension system for pig carcasses, comprising a feeding conveyor belt 1, a discharging conveyor belt 2, a U-shaped drying trough 3, and a ring-shaped cable chain 4. The feeding conveyor belt 1 transfers pig carcasses to the U-shaped drying trough 3, which is equipped with a powerful airflow drainage device. A blower is used to remove adhering water from the pig carcasses; this is a conventional technique and will not be discussed further. The U-shaped drying trough 3 removes surface water from the pig carcasses. The ring-shaped cable chain 4 lifts the pig carcasses from the feeding conveyor belt 1 through the U-shaped drying trough 3 to remove surface water and transfer them to the discharging conveyor belt 2. The discharging conveyor belt 2 transports the pig carcasses, after surface water removal, to the next process. An automatic feeding device is installed on the ring-shaped cable chain 4. This allows for seamless integration of efficient drying (removing surface water) and subsequent pre-cooling in a continuous process. The U-shaped air-drying trough 3 is just one way of using a blower to remove the attached water from pig carcasses. It is only for the purpose of demonstrating the scheme and should not be regarded as a specific limitation of this application. It can also be used in L-shaped, straight, and zigzag-shaped strong wind drainage device structures.

[0018] The automatic feeding device includes a mounting base 5, a hook 6, and a limiting frame 8. Multiple mounting bases 5 are spaced apart on the annular cable chain 4, rotating along the chain. Each mounting base 5 is rotatably mounted with a hook 6, which can rotate relative to the mounting base 5 as the annular cable chain 4 travels. A limiting frame 8 is provided above the feeding conveyor belt 1 to change the direction of the hook 6. When the mounting base 5 moves along the annular cable chain 4 above the feeding conveyor belt 1, the hook 6 rotates along the limiting frame 8 until its tip is parallel to the transmission direction of the feeding conveyor belt 1. It is worth noting that, to ensure the stability of the assembly line operation, theoretically, the linear speed of the annular cable chain 4 should be consistent with the linear speed of the feeding conveyor belt 1, or the linear speed of the feeding conveyor belt 1 should be servo-driven, with the previous pig carcass being quickly moved to replace the next pig carcass to be lifted after it has been lifted.

[0019] The limiting frame 8 is a symmetrically arranged double-rail structure with a clearance groove 12 in the middle, which facilitates the passage of the hook 6. The limiting frame 8 includes a horizontal part 10 and an inclined part 11. The hook 6 is provided with limiting rods 7 extending to both ends. The top end of the horizontal part 10 is tangent to the bottom end of the limiting rod 7 of the hook 6 in its naturally hanging state. The inclined part 11 has an upward tilt relative to the horizontal part 10 and is located at the end of the mounting base 5 away from the horizontal part 10. Figure 1 and Figure 2 The specific structure of the limiting frame 8 is a hanging track. In some embodiments, a lifting track structure may also be used.

[0020] Reference Figure 3The feeding conveyor belt 1 is arranged at an upward inclination. This upward inclination allows surface moisture (especially blood and rinsing water within the cavity) of the carcass to flow naturally to a lower position (rear end) and drip off during transport, reducing the initial moisture load upon entering the drying trough. It also further improves the efficiency of the hook 6. The discharging conveyor belt 2 is also arranged at an upward inclination, with a surface linear velocity greater than that of the annular cable chain 4. This upward inclination facilitates the reception of carcasses unloaded from the hook 6. Its higher linear velocity creates a speed difference at the junction, forming a "dragging" effect that ensures the carcass quickly and reliably detaches from the hook 6 and transfers to the conveyor belt, preventing jamming or slippage and improving discharge efficiency and reliability.

[0021] Each of the limiting rods 7 is rotatably mounted with a wheel 9. The wheel 9 directly contacts the track of the limiting frame 8, replacing the limiting rod 7, thus converting sliding friction into rolling friction. This significantly reduces running resistance, lowers equipment wear and noise, and extends the service life of the hook 6 and the limiting frame 8. Each wheel 9 is a conical wheel structure with a large-diameter inner end. The conical wheel structure (large inner diameter) is a key design feature. When the wheel 9 rolls within the double-rail limiting frame 8, the large inner diameter effectively "locks" against the inner side of the track, creating a guiding effect similar to that of a train wheel flange. This ensures that the trajectory of the hook 6 within the limiting frame 8 (especially the inclined section 11) is precise and stable, preventing the hook 6 from accidentally derailing due to vibration or speed changes, and guaranteeing the reliability and consistency of the automatic steering action.

[0022] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pig carcass pre-cooling hanging energy-saving system, characterized in that, The system includes a feeding conveyor belt (1), a discharging conveyor belt (2), a U-shaped drying trough (3), and a ring-shaped cable chain (4). The feeding conveyor belt (1) is used to transfer pig carcasses to the U-shaped drying trough (3). The U-shaped drying trough (3) is used to remove water adhering to the surface of the pig carcasses. The ring-shaped cable chain (4) is used to lift the pig carcasses from the feeding conveyor belt (1) through the U-shaped drying trough (3) to remove surface water and transfer them to the discharging conveyor belt (2). The discharging conveyor belt (2) is used to transport the pig carcasses after surface water removal to the next process. An automatic feeding device is installed on the ring-shaped cable chain (4).

2. The live pig carcass pre-cooling hanging energy-saving system according to claim 1, characterized in that: The automatic feeding device includes a mounting base (5), a hook (6), and a limiting frame (8). Multiple mounting bases (5) are installed at intervals along the circular drag chain (4) and rotate along the loop. A hook (6) is rotatably installed on each mounting base (5). The hook (6) can rotate relative to the mounting base (5) as it travels along the circular drag chain (4). A limiting frame (8) is provided above the feeding conveyor belt (1) to change the direction of the hook (6). When the mounting base (5) moves along the circular drag chain (4) to above the feeding conveyor belt (1), the hook (6) rotates along the limiting frame (8) until the hook tip is parallel to the transmission direction of the feeding conveyor belt (1).

3. The pig carcass pre-cooling hanging energy-saving system according to claim 2, characterized in that: The limiting frame (8) is a double-track structure with a symmetrical arrangement and a clearance groove (12) in the middle. The clearance groove (12) facilitates the passage of the hook (6). The limiting frame (8) includes a horizontal part (10) and an inclined part (11). The hook (6) is provided with a limiting rod (7) extending to both ends. The top of the horizontal part (10) is tangent to the bottom of the limiting rod (7) of the hook (6) in a naturally hanging state. The inclined part (11) has an upward tilt relative to the horizontal part (10) and the inclined part (11) is located at the end of the mounting base (5) away from the horizontal part (10).

4. The live pig carcass pre-cooling hanging energy-saving system according to claim 3, characterized in that: The feed conveyor belt (1) is arranged at an upward angle.

5. The energy-saving system for pre-cooling and suspending pig carcasses according to claim 2, characterized in that: The discharge conveyor belt (2) is arranged at an upward angle and its surface linear velocity is greater than that of the annular drag chain (4).

6. The energy-saving system for pre-cooling and suspending pig carcasses according to claim 3, characterized in that: Each of the aforementioned limit rods (7) is rotatably mounted with a wheel (9).

7. The energy-saving system for pre-cooling and suspending pig carcasses according to claim 6, characterized in that: Each of the aforementioned wheels (9) is a conical wheel structure with the inner side being the larger diameter end.

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