GB2589975A

GB2589975A - Automatic pre-slaughter management system

Info

Publication number: GB2589975A
Application number: GB2016701.1A
Authority: GB
Inventors: Li Chunbao; Zhou Guanghong; Zou Bo; Xu Xinglian; He Guangjie
Original assignee: Nanjing Agricultural University
Current assignee: Nanjing Agricultural University
Priority date: 2018-09-14
Filing date: 2018-11-06
Publication date: 2021-06-16
Anticipated expiration: 2038-11-06
Also published as: WO2020052031A1; GB202016701D0; CN109399227A; CN109399227B; GB2589975B

Abstract

An automatic pre-slaughter management system, comprising: a transport mechanism, a hanging mechanism, and a control room (16). The transport mechanism comprises a transport vehicle (1), and a transport case (4) for storing live pigs (9); the transport case (4) is provided with an openable side door (4.1) on a side; the hanging mechanism comprises a fixed load bearing frame (7), a hanging rod (8) horizontally fixed on the load bearing frame (7), and a hoist (3) for lifting the transport case (4); the hoist (3) is connected to a hoist driving mechanism which drives the hoist (3) to move back and forth on the hanging rod (8); the hoist (3) comprises a hook (3.1) for lifting the transport case (4) and a motor (3.2) which controls lifting and lowering of the hook (3.1); a weighing platform (2) and a resting region (6) are sequentially provided below the hanging rod (8); a spray device (5) is provided in the resting region (6); a lifting platform (10) and a gas stunning room (13) are provided next to the resting region (6); a lifting platform driving mechanism (12) which drives the lifting platform (10) to tilt toward the gas stunning room (13) is provided on one side of the lifting platform (10); a transport case fixing device (11) is provided on the lifting platform (10); a side door opening mechanism (14) for opening the side door (4.1) of the transport case is provided above the lifting platform (10); a control system is provided in the control room (16).

Description

AUTOMATIC PRE-SLAUGIITER HANDLING SYSTEM

BACKGROUND

Technical Field

The present invention relates to an automatic pre-slaughter handling system, and belongs to the technical field of pig slaughter Related Art In recent years, technologies and devices in the field of pig slaughter have been continuously updated and developed, the production cost is reduced, and the quality of meat products is improved. However, there are still many defects in the aspect of pre-slaughter handling. Additionally, the emergence of new technologies has caused increasing demands for automation and intellectualization.

At present, pre-slaughter handling devices in China are relatively poor, and have a low automation level. Manual operations are mainly adopted, and animal welthre is poor, which induced poor meat quality There are well-designed pre-slaughter handling passages in Europe, the nited States and other developed countries, but the automation degree is far from enouqh. Additionally, pigs may generate a large amount of excrement before slaughter, and there are structural defects in a resting pen, thereby resulting in serious environment pollution, especially in the resting link, and the sanitation condition needs to be improved urgently.

SUMMARY

The objective of the present invention is to provide an automatic pre-slaughter handling system capable of reducing pre-slaughter stress of pigs to a great degree, improving animal welfare, appearances of carcasses and qualities of meat products, and the most importantly improving mechanization and intellectualization levels of pig pre-slaughter handling, and greatly relieving pre-slaughter environment pollution conditions, The present invention adopt-the following technical solution: The automatic pre-slaughter handling system includes a transport mechanism, a hanging mechanism, and a control room. The transport mechanism includes a transport vehicle, and a transport case for storing pigs. The transport case is provided with an openable side door on a side. The hanging mechanism includes a fixed load bearing frame, a hanging rod horizontally fixed on the load bearing frame, and a hoist for lifting the transport case. The hoist is connected to a hoist driving mechanism driving the hoist to move back and forth on the hanging rod. The hoist includes a snatching hook for lifting the transport case and a snatching motor for controlling lifting and lowering of the snatching hook. A weighing platform, a resting region, a lifting platform and a gas stunning room are sequentially provided below the hanging rod. A spray device is provided in the resting region A lifting platform driving mechanism driving the lifting platform to tilt toward the gas stunning room is provided on one side of the lifting platform A transport case fixing device is provided on the lifting platform A side door opening mechanism for opening, the side door of the transport case is provided above the lifting, platform. A control system for controlling Me hoist driving mechanism, the lifting platform driving mechanism, the side door opening mechanism and the spray device to operate is provided in the control room.

A connecting post upwards extending from a bottom of the transport case is provided in the transport case. A top of the connecting post is provided with a lifting ring matched with the snatching hook. The snatching hook is provided under the snatching motor. A roller moving back and forth on the hanging rod is connected onto the snatching motor. The roller moves through being driven by the hoist driving mechanism.

The transport vehicle at least includes two layers. A top cover is provided on each layer. The top cover of each layer includes two inwards and outwards sliding half covers. The top cover is opened by outwards sliding the two half covers. The top cover is closed by inwards sliding the two half covers. A fixing ring for tightly locking the two half covers together is connected between the two half covers.

The side door of the transport case is a vertical sliding door installed in a vertically sliding mode. The side door opening mechanism includes vertical lifting assemblies provided above the lifting platform and a lifting motor driving the vertical lifting assemblies to vertically move. A bottom of each of the vertical lifting assemblies is provided with a lifting hook tightly hooked on a top of the side door of the transport case. When vertically moving, the vertical lifting assemblies are configured to drive the side door of the transport case to vertically move.

The transport case fixing device includes a fixin fixed to one side of the lifting platform far away from the gas stunning room. A rotating member is rotationally assembled on the fixing member. A clamp groove configured to be clamped on a side surface of the transport case is formed in the rotating member. When the lifting platform tilts toward the vas stunning room, the clamp groove of the rotating member tightly clamps an upper edge of one side of the transport case right against the side door.

Anti-slip grains are provided on an upper surface of the lifting platform. The anti -slip grains are broken line grains.

The lifting platform driving mechanism is an electrohydraulic jack provided at one side of the bottom of the lifting platform far away from the gas stunning room. A height of the lifting platform in a horizontal state is higher than a height of the gas stunning room.

The resting region is provided with a flat anti-fouling ground. The resting region further provided with an underground pollution discharge passage.

The spray device is a M4 fan-shaped anti-drip atomizing spray The load bearing frame adopts a stainless steel material.

The present invention has the beneficial effects that the automatic pre-slaughter handling system of the present invention connects links of unloading, driving, resting, flushing, transporting, stunning and the like of pigs to build an automatic integral pre-slaughter system, The pigs are stored in the transport case. The transport case is transported by the transport vehicle. After the transport vehicle reaches a slaughter site and parks, the fixing ring on the top cover of the transport vehicle is opened, a worker outwards slides the two half covers of the top cover of the transport vehicle to open the top cover through the control system in the control room. Then, the control system operates and controls the hanging mechanism. Through beirig driven by the hoist driving mechanism, the hoist moves to a position above the transport vehicle. After the snatching hook grasps the lifting ring of the connecting post of the transport case through being driven by the snatching motor, the transport case is lifted through the hoist and is transported to the weighing platform to be weighed. After weighing, through being driven by the hoist, the pigs and the transport case are transported to the resting region together for resting. The spray device is turned on for flushing and providing a certain water source for the pigs at the same time. After the resting is completed, the hoist moves the transport case to the position of the lifting platform, stably places the transport case onto the lifting platform, and enables the side door of the transport case to he close to the gas stunning room. The clamp groove of the rotating member is clamped onto the edge of the transport case Then, the side door of the transport case is upwards lifted through a lifting device on the lifting, platform. The electrohydraulic jack at one side under the lifting platform is opened, so that the whole lifting platform titles toward the gas stunning room, and the pigs are poured into the gas stunning room by the way. When the lifting platform titles, the transport case is tightly clamped and fixed by the clamp groove of the rotating member. After the pi,gs are poured into the gas stunning room, the hydraulic jack is collected, so that the whole lifting platform is horizontally placed. Then, the side door of the transport case is downwards moved to return to the transport case by using the lifting device on the lifting platform, and the rotating member of the lifting platform is collected. At the moment, the hoist pulls the transport case without the pigs again to recover it onto the rear empty transport vehicle, and the whole pre--slaughter process is completed. After the slaughter work in one day is completed, the worker conveniently flushes the ground to remove excrement of the pigs and purify the pre-slaughter environment by using the advantage of open ground of the resting region.

The whole pre-slaughter handling system of the present n realizes mechanization and intellectualization through inks of unloading, driving, resting, flushing, transporting, stunning and the like of pigs, and the manual control over the pigs is completely not needed. At the same time, the pigs are always in a loafing and resting state in the whole pre-slaughter handling process without receiving any beat and electric shock, so that the pre-slaughter stress of the pigs is greatly reduced, and the animal welfare of the pigs is improved. At the same time, no resting house is used, so that the whole resting region is an open around. An advanced pollution discharge system is used. Therefore, the sanitation environment of the slaughtering plants can be improved to a great degree. The automatic pre-slaughter handling system also has wide application prospects on stock products such as pigs, cows and sheep.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure I is a schematic diagram of an automatic pre-slaughter handling system of the present invention (a lifting platform and a gas stunning room are not shown in the Figure).

Figure 2 is a schematic diagram of a lifting ladorm and a. gas stunning room of the automatic pre-slaughter handling system of the present invention.

Figure 3 is a schematic top view of the automatic pre-slaughter handling system of the present invention Figure 4 is a schematic diagram ot a top covet of a transportation vehicle in the present invention.

Figure 5 is a schematic diagram of placing a hoist in the present invention.

Figure 6 is a schematic diagram of a transport case in the present invention.

Figure 7 is a schematic diagram of a side door of the transport case and a side door opening mechanism in the present invention.

Figure 8 is a schematic diagram of a lifting plaftbrin the present invention Figure 9 is a statistical result in quantity of abnormal meat.

Figure 10 is a post-slaughter pH value determination result.

In the figures, 1 denotes a transportation vehicle; 1.1 denotes a top cover: 1.2 denotes a fixing ring; 2 denotes a weighing platform: 3 denotes a hoist: 3.1 denotes a snatching hook; 3.2 denotes a snatching motor; 3.3 denotes a roller; 4 denotes a transport case; 4. I denotes a side door of a transport case: 4.2 denotes a connecting post; 4.3 denotes a lifting ring; 5 denotes a spray device; 6 denotes a resting region; 7 denotes a load hearing frame; denotes a hanging rod; 9 denotes a pig; 10 denotes a lifting platform ii denotes a transport case fixing device; 11.1 denotes a fixing member; 11.2 denotes a rotating member; 12 denotes a lifting platform driving mechanism; 13 denotes a gas stunning room; 14 denotes a side door opening mechanism; 14.1 denotes a vertical lifting assembly; 14.2 denotes a lifting hook; 14.3 denotes a lifting motor; and 16 denotes a control room.

DET,ULED DESCRIPTION

The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.

A structure of a specific embodiment of an automatic pre-slaughter handling system of the present invention is shown in Figure 1 to Figure 8. The automatic pre-slaughter handling system of the present embodiment includes a transport mechanism, a hanging mechanism, and a control room (16). The transport mechanism includes a transport vehicle (1), and transport cases (4) for storing pigs (9). Each of the transport cases (4) is provided with an openable side door (4.1) on a side. The hanging mechanism includes a fixed load bearing frame (7), a hanging rod (8) horizontally fixed on the load bearing frame (7), and hoists (3) for lifting the transport cases (4). The hoists (3) are connected to a hoist driving mechanism driving the hoists (3) to move back and forth on the hanging rod. Each of the hoists (3) includes a snatching hook (3.1) for lifting the transport case (4) and a snatching motor (3.2) for controlling lifting and lowering of the snatching hook (3.1). A weighing platform (2), a resting region (6), a lifting platform (10) and a. gas stunning room (13) are sequentially provided below the hanging rod (8). Spray devices (5) are provided in the resting region (6). A lifting platform driving mechanism (12) driving the lifting platform (10) to tilt toward the gas stunning room (13) is provided on one side of the lifting platform (i 0). A transport case fixing device (11) is provided on the lifting platform (1 0). A side door opening mechanism (14) for opening the side door of the transport case is provided above the lifting platform (10). A control system for controlling the hoist driving mechanism, the lifting platform driving mechanism, the side door opening mechanism and the spray devices to operate is provided in the control room (16). The control system of the control room (16) is connected with all devices to intelligently control the whole pre-slaughter process.

The transport vehicle (1) at least includes two layers. A top cover (1.1) is provided on each layer. The top cover 0.1) of each layer includes two inwards and outwards sliding half covers. The top cover is opened by outwards sliding the two half covers, and the top cover is closed by inwards sliding the two half covers. The two half covers may be automatically opened and closed under the control of the control system. A fixing ring (1.2) for tightly locking the two half covers together is connected between the two half covers.

A connecting post (4.2) upwards extending from the bottom of the transport case (4) is provided in each of the transport cases (4). The top of the connecting post) is provided with a lifting ring (4.3) matched with the snatching hook (3.1). The snatching hook (3.1) is provided under the snatching motor (3.2). A roller (3.3) moving back and forth on the hanging rod (8) is connected onto the snatching motor (3.2). The roller (3.3) moves through being driven by the hoist driving mechanism.

The side door (4.1) of the transport case is a vertical sliding door instal a vertically sliding mode. The side door opening mechanism (14) includes vertical assemblies (14.1) provided above the lifting platform and a lifting motor (14.3) driving the vertical lifting assemblies (14.1) to vertically move. The bottom of each of the vertical lifting, assemblies (14.1) is provided with a lifting hook 14.2 tightly hooked on the top of the side door (4.1) of the transport case. When vertically moving, the vertical lifting assemblies (14,1) are configured to drive the side door (4.1) of the transport case to vertically move.

The transport case fixing device (11) inc hides a fixing member (11.1) fixed to one side of the lifting platform (10) far away from the gas stunning room (13). A rotating member (11.2) is rotationally assembled on the fixing member (11.1). A clamp groove configured to be clamped on the side surface of the transport case is formed in the rotating member (12.1). When the lifting platform (10) tilts toward the gas stunning room (13), the clamp groove of the rotating member (11.2) tightly clamps an upper edge of one side of the transport case right against the side door_ Anti-slip grains are provided on an upper surface of the lifting platform (10). The anti-slip grains are broken line grains_ The broken line grains may increase friction, and enable the transport case (4) to be firmly fixed when the pigs (9) are poured into the gas stunning Mom (13). The lifting platform driving mechanism (12) is an electrohydraulic jack provided at one side of the bottom of the lifting platform far away from the gas stunning room. The hydraulic jack (12) can lift up one side of the whole lifting platform to achieve a tilting effect. After the pigs (9) are poured into the gas stunning room (13), the hydraulic jack (12) can be collected, so that the lifting platform (10) is horizontally placed. A height of the lifting platform (10) in a horizontal state is higher than a height of the gas stunning room (13).

The resting region (6) includes a flat anti-fouling ground and an underground pollution discharge passage. Trash accumulates in the slaughter house during long-term usage, particularly in the pre-slaughter resting region. The pigs will excrete much feces and urine, causing great unpleasant odor and pollution. In the automatic pre-slaughter handling system of the present invention, no resting house but the flat ground is needed. After the pigs are slaughtered, the remaining waste can be well discharged into a sewer through flushing, so that the hygiene conditions in the resting region are greatly improved. The spray devices (5) are TN fan-shaped anti-drip atomizing spray nozzles. The pigs can be flushed, and drinking water can be provided. The load bearing frame (7) adopts a stainless steel material, which can support great weight, so as to ensure the smooth proceeding of the whole pre-slaughter handling.

The automat pre-slaughter handling system of the present invention connects unloading, driving, resting, flushing, transporting. and stunning, which forms an automatic integral pre-slaughter system.

The pigs are stored in the transport cases. 'The cases are transferred by the transport vehicle. After the transport vehicle reaches a slaughter site and parks, the fixing. ring on the top cover of the transport vehicle is opened, a worker outwards slides the two half covers of the top cover of the transport vehicle to open the top cover through the control system in the control room. 'Then, the control system operates and controls the hanging mechanism. Through being driven by the hoist driving mechanism, the hoist moves to a position above the transport vehicle. After the snatching hook grasps the lifting ring of the connecting; post of the transport case through being driven by the snatching motor, the transport case is lifted through the hoist and is transported to the weighing platform to be weighed. After weighing, through being driven by the hoist, the pigs and the transport case are transported to the resting region. The spray devices (5) may be turned on for flushing the pigs and providing drinking water for the pigs. After the resting is completed, the hoist moves the transport case to the position of the lifting platform, stably places the transport case onto the lifting platform, and enables the side door of the transport case to be close to the gas stunning room. The clamp groove of the rotating member is clamped onto the edge of the transport case. Then, the side door of the transport case is upwards lifted through a lifting device on the lifting platform. The electrohydraulic jack at one side under the lifting platform is opened, so that the whole lifting platform titles toward the ga.s stunning room, the pigs are poured into the gas stunning room by the way. When the lifting platform titles, the transport case is tightly clamped and fixed by the clamp groove of the rotating member. he pigs are poured into the gas stunning room, the hydraulic jack is collected, so that hole lifting platform is horizontally placed Then, the side door of the transport case is downwards moved to return to the transport case by using the lifting device on the lifting platform, and the rotating member of the lifting platform is collected. At the moment, the hoist pulls the transport case without the pigs again to recover it onto the rear empty transport vehicle, and the whole pre-slaughter process is completed. By analogy, other intelligent hoists (3) may operate at the same time. After the slaughter work in one day is completed, the worker conveniently flushes the ground to remove excrement of the pigs and purify the pre-slaughter environment by using the advantage of open ground of the resting region.

The whole pre-slaughter handling system of the present invention realizes mechanization and intellectualization through links of unloading, driving, resting, flushing, transporting, stunning and the like of the pigs; and the manual control over the pigs is completely not needed. At the same time, the pigs are always in a loafing and resting state in the whole pre-slaughter handling process without receiving any beat and electric shock, so that the pre-slaughter stress of the pigs is greatly reduced, and the animal welfare of the pigs is improved. At the same time, no resting house is used, so that the whole resting region is an open ground. An advanced pollution discharge system is used. Therefore, the sanitation environment of the slaughtering plants can be improved to a great degree. The automatic pre-slaughter handling system also has wide application to cattle and sheep slaughterhouses.

The present invention is further described below with reference to specific application examples and data. It should be understood that these examples are only used for describing the present invention, and are not intended to limit the scope of the present invention in any way. The postmortem pH change in pork will be used as an indicator for abnormal meat.

Specific application examples: Material: 30 pigs Method: The 30 pigs were randomly divided into two groups with 15 head each group. One group adopted an existing pre-slaughter handling practice such as electric shock sticks to unload and drive the pigs, and was set as a control group. The other group adopted the automatic pre-slaughter handling system of the present invention, enabled the pigs to always maintain the relaxing state in the whole pre-slaughter process and to be then slaughtered, simulating the automatic pre-slaughter handling system, and was set a treatment group.

After the pigs were slaughtered, pork at the loin was taken. pH was measured at 0, 3, 12 and 24 h postmortem, and the quantity of abnormal meat in the two groups was counted according; to pH values.

Quality evaluation: Meat with a pH value below 6.0 at 0 h postmortem was defined as PSE meat, and meat with a pH value above 6.0 at 24 h postmortem was defined as DEO meat.

From Figure 9, it can be seen thai afterthe automatic pre-slaughter handling system of the present invention was adopted, I pig produced DEO meat, and 1 pig generated PSE meat. On the other hand, 1 pork was PSE meat, and 6 pork was DEO meat. Therefore, the incidence of the abnormal meat using the existing pre-slaughter handling practice was greatly increased, and huge economic loss was brought to enterprises.

A portable pH meter was used, three measuring points of the pork loin were selected to determine pH values, and an average was taken to be used as a final pH value.

From Figure 0; it can be seen that, at 0 to 3 h after slaughter; by using the existing pre-slaughter handling practice; the pH values are almost not decreased; and are in a normal change state under the condition of simulating the automatic pre--slaughter handling system. At 24 h postmortem, the pH values of the two groups are significantly different. In the existing pre-slaughter handling practice, the pH values are higher than 6.0, and are much higher than that of normal meat. By using the automatic pre-slaughter handling system of the present invention, the pH values of the pork at24 h postmortem are in a. normal range.

Claims

CLAIMSWhat is claimed is: 1. An automatic pre-slaughter handling system, comprising a transport mechanism, a hanging mechanism, and a control room (16), wherein the transport mechanism comprises a transport vehicle (1), and a transport case (4) for storing pigs (9),the transport case (4) has an openable side door (4:1) on a side, the hanging mechanism comprises a fixed load bearing frame (7), a hanging rod (8) horizontally fixed on the load bearing frame (7), and a hoist (3) For lifting the transport case (4)the hoist (3) is connected to a hoist driving mechanism driving the hoist (3) to move back and forth on the hanging rod (8), the hoist (3) comprises a snatching hook (3.1) for lifting the transport case (4) and a snatching motor (3.2) for controlling lifting and lowering of the snatching hook (3.1), a weighing platform (2), a resting region (6), a lifting platform (10) and a gas stunning room (13) are sequentially provided below the hanging rod (8), a spray device (5) is provided in the resting region (6), and a lifting platform driving mechanism (12) driving the lifting platform (10) to tilt toward the gas stunning room (13) is provided on one side of the lifting platform (1 0),a transport case fixing device ( II) is provided on the lifting platform 0), with a side door opening mechanism (14) for opening the side door of the transport case above the lifting platform (10), and a control system for controlling the hoist driving mechanism, the lifting platform driving mechanism, the side door opening mechanism and the spray device to operate is provided in the control room (16).
2. The automatic pre-slaughter handling system according to claim I wherein a connecting post (4.2) upwards extending from a bottom of the transport case (4) is provided in the transport case (4), a top of the connecting post (4.2) is provided with a lifting ring (4.3) matched with the snatching hook (3.1), the snatching hook (3.1) is provided under the snatching motor (3.2), a roller (3.3) moving back and Forth on the hanging rod (8) is connected onto the snatching motor (3.2), and the roller (3.3) moves through being driven by the hoist driving mechanism.
3. The automatic pre-slaughter handling system according to claim 1, wherein the transport vehicle (1) at least comprises two lavers, a top cover (1_1) is provided on each laver, the top cover (1.1) of each layer comprises two inwards and outwards sliding half covers, the top cover is opened by outwards sliding the two half covers, the top cover is closed by inwards sliding the two half covers, and a fixing ring (1.2) for tightly locking the two half covers together is connected between the two half covers.
4. The automatic pre-slaughter handling system according to claim I, wherein the side door (4.1) of the transport case is a vertical sliding door installed in a vertically sliding mode, the side door opening mechanism (14) comprises vertical lifting assemblies (14.1) provided above the lifting platform and a lifting motor (14.3) driving the vertical lifting assemblies (14.1) to vertically move, a bottom of each of the vertical lifting assemblies (14.1) is provided with a lifting hook (14.2) tightly hooked on a top of the side door (4.1) of the transport case, and when vertically moving, the vertical lifting assemblies (14.1) are configured to drive the side door (4.1) of the transport case to vertically move.
5. The automatic pre-slaughter handling system according to claim 1" wherein the transport case fixing device (11) comprises a. fixing member (11.1) fixed to one side of the lifting platform (10) far away from the gas stunning room (13), a rotating member (11.2) is rotationally assembled on the fixing member ( 1 1), a clamp groove configured to be clamped on a side surface of the transport case is formed in the rotating member (12.1), and when the lifting platform (10) tilts toward the gas stunning room (13), the clamp groove of the rotating member (112) tightly clamps an upper edge of one side of the transport case right against the side door.
6. The automatic pre-slaughter handling system according to claim i wherein anti-sup grains are provided on an upper surface of the lifting platform (10), and the anti-slip grains are broken line grains.
7. The automatic pre-slaughter kindling system according to claim 1, wherein the lifting platform driving mechanism (12) is an electrohydraulic jack provided at one side of the bottom of the lifting platform far away from the gas stunning room, and a height of the lifting platform in a horizontal state is higher than a height of the gas stunning room (13).e automatic pre-slaughter handling system according to claim 1, wherein the resting region 6 is provided with a flat anti-fouling around, and the resting region is further provided with an underground pollution discharge passage.utomatic pre-slaughter handling system according to claim 1, wherein the spray device (5) is a TN Can-shaped anti--drip atomizing spray nozzle.10. The automatic pre-slaughter handling system according to claim 1, wherein the load bearing frame (7) adopts a stainless steel material.