Singeing device for pig slaughtering primary processing

By using a singeing device with alternating tilted nozzles in pig slaughtering and processing, the problems of pig hair residue and manual cleaning are solved, achieving an efficient and safe singeing process, reducing labor intensity and food safety risks.

CN224084563UActive Publication Date: 2026-04-07SHANDONG RONGYUE MEAT PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-13
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

In current pig slaughtering and processing methods, dehairing methods do not completely remove pig hair, requiring manual cleaning, which increases labor intensity and may leave rosin residue, posing a food safety risk.

Method used

The singeing device, which uses alternating tilted nozzles, removes pig hair through flames, avoiding manual operation and material residue. The conveyor chain mechanism moves the pig through the nozzles to spray flames, and the combination of water tank cooling and laser sensor control of the flames improves efficiency and safety.

Benefits of technology

It achieves highly efficient singeing without manual operation, reduces labor intensity, avoids material residue, improves production efficiency and workshop comfort, and ensures food safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of slaughtering processing, and particularly relates to a singeing device for pig slaughtering primary processing, which comprises a conveying chain mechanism, a plurality of groups of mounting plates are arranged on both sides of the conveying chain mechanism, the mounting plates are symmetrically arranged about the vertical center line of the conveying chain mechanism, and a flame nozzle I and a flame nozzle II are respectively mounted on the mounting plates; wherein an included angle alpha is formed between the flame spraying angle of the flame nozzle I and the horizontal line, the inclined direction of the flame nozzle I is upward, an included angle beta is formed between the flame spraying angle of the flame nozzle II and the horizontal line, and the inclined direction of the flame nozzle II is downward. The slaughtered pigs are driven by the conveying chain mechanism to pass through the singeing device, residual pig hairs on the surfaces of pig bodies are singed in the mode that flames are sprayed out through the first fire spraying nozzle and the second fire spraying nozzle, the surfaces of the pig bodies are smoother, manual operation is not needed in the singeing process, and operation convenience is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of slaughtering and processing technology, specifically relating to a singeing device for the initial processing of pigs during slaughter. Background Technology

[0002] In the existing pig slaughtering and processing process, there are three main methods for dehairing pigs: horizontal dehairing, hanging dehairing, and spiral dehairing. However, some pig hair will always remain after dehairing. Some slaughtering and processing enterprises will then use a singeing process to clean up the remaining pig hair so that the pig skin surface is smoother.

[0003] For example, Chinese Patent Application Publication No. CN214015748U discloses an online pig head hair removal device, which includes a rosin heating tank and a cooling tank. The rosin heating tank, from the outside to the inside, consists of an insulation layer, a heat-conducting oil heating chamber, and a rosin pool. The upper part of the rosin pool is open. The oil inlet and outlet of the heat-conducting oil heating chamber are connected to a heat-conducting oil heating system outside the rosin heating tank. The heat-conducting oil heating system continuously supplies heated heat-conducting oil to the heat-conducting oil heating chamber. The rosin heating tank and cooling tank are installed on a slaughtering production line. The traction conveyor of the slaughtering production line transports pig carcasses, suspended head-down, sequentially to the rosin heating tank and cooling tank according to the process. This device utilizes rosin to remove pig hair, achieving the hair removal treatment.

[0004] As described in the prior art of the aforementioned patent, rosin is adhered to the pig's head, and then the rosin is removed manually to remove the pig hair. However, this method of removing pig hair requires manual removal, which increases the labor intensity of workers, and the rosin will remain on the surface of the pig's head. If it cannot be washed off, it may cause the buyer to accidentally ingest it. Utility Model Content

[0005] The purpose of this invention is to provide a singeing device for the initial processing of pigs during slaughter. It removes pig hair by singeing, leaving no residue on the pig's surface that could be accidentally ingested by consumers, thus avoiding food safety issues. Furthermore, it requires no manual operation, reducing the labor intensity of workers and improving production efficiency.

[0006] The specific technical solution adopted in this utility model is as follows:

[0007] A singeing device for initial processing of pigs includes a conveyor chain mechanism. Multiple mounting plates are arranged on both sides of the conveyor chain mechanism, symmetrically about the vertical center line of the conveyor chain mechanism. A first flame nozzle and a second flame nozzle are respectively mounted on the mounting plates, and the first and second flame nozzles are alternately arranged on the mounting plates along the conveying direction of the conveyor chain mechanism. The flame jet angle of the first flame nozzle forms an angle α with the horizontal line, and the first flame nozzle is tilted upwards. The flame jet angle of the second flame nozzle forms an angle β with the horizontal line, and the second flame nozzle is tilted downwards.

[0008] In a preferred embodiment, a set of water tanks is installed at the top of each set of mounting plates, and each water tank is provided with a water inlet and an exhaust outlet, with the exhaust outlet installed at the top of the water tank.

[0009] In a preferred embodiment, a fume hood is provided above the water tank, and a fume vent is provided at the top of the fume hood.

[0010] In a preferred embodiment, the upward tilt angle α of the first flame nozzle is in the range of 5-15°, and the downward tilt angle β of the second flame nozzle is in the range of 5-10°.

[0011] In a preferred embodiment, each set of mounting plates is provided with a laser sensor transmitter and a laser sensor receiver along the conveying direction of the conveyor chain mechanism, and the laser sensor transmitter and the laser sensor receiver are respectively located on both sides of the conveyor chain mechanism.

[0012] In a preferred embodiment, there is a gap between two adjacent sets of mounting plates on the same side, and the nozzles on each set of mounting plates are symmetrically arranged with respect to the conveying direction of the conveyor chain mechanism.

[0013] The technical effects achieved by this utility model are as follows:

[0014] This utility model uses a conveyor chain mechanism to drive slaughtered pigs through a singeing device. The device singes off the remaining pig hair on the pig's surface by spraying flames from nozzles one and two, making the pig's surface smoother. No manual operation is required during the singeing process, which improves the convenience of operation, reduces the labor intensity of workers, and does not require any materials to remove pig hair, thus avoiding the residue of substances such as rosin on the pig's surface and preventing accidental ingestion by personnel.

[0015] This invention features water tanks installed above both the first and second flame nozzles. The evaporation of water in the tanks removes the heat from the flames emitted by the nozzles, thereby reducing the temperature of the production area and improving the comfort of the workers. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the overall structure of this practical tool;

[0017] Figure 2 This is a schematic diagram of the side view structure of this practical product;

[0018] Figure 3 This is a schematic diagram of the structure after removing the exhaust hood;

[0019] Figure 4 This is a schematic diagram of the structure of the side with the laser sensor after removing the exhaust hood;

[0020] Figure 5 It is a practical book Figure 2 Enlarged structural diagram at point A in the middle.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1. Conveyor chain mechanism; 2. Mounting plate; 3. Nozzle 1; 4. Nozzle 2; 5. Water tank; 6. Smoke hood; 7. Laser sensor transmitter; 8. Laser sensor receiver; 51. Water inlet; 52. Exhaust outlet; 61. Smoke outlet. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of this utility model. However, this utility model may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of this utility model. The phrase "in a preferred embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that mutually excludes other embodiments.

[0026] Secondly, this utility model is described in detail with reference to the schematic diagrams. When detailing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0027] Please see the appendix Figure 1 and Figure 2 as well as Figure 5As shown, this utility model provides a singeing device for the initial processing of pig slaughtering, including a conveyor chain mechanism 1. Multiple sets of mounting plates 2 are provided on both sides of the conveyor chain mechanism 1, and the mounting plates 2 are symmetrically arranged about the vertical center line of the conveyor chain mechanism 1. A first flame nozzle 3 and a second flame nozzle 4 are respectively mounted on the mounting plates 2, and the first flame nozzle 3 and the second flame nozzle 4 are alternately arranged on the mounting plates 2 along the conveying direction of the conveyor chain mechanism 1. Among them, the flame spray angle of the first flame nozzle 3 has an angle α with the horizontal line, and the tilt direction of the first flame nozzle 3 is upward. The flame spray angle of the second flame nozzle 4 has an angle β with the horizontal line, and the tilt direction of the second flame nozzle 4 is downward.

[0028] In this embodiment, when singeing pigs, the slaughtered pigs can be hung on the conveyor chain mechanism 1 by hooks. The conveyor chain mechanism 1 will transport the pigs through a series of processing steps in sequence. When the pigs pass through the singeing device, the pig hairs are singed off by flames sprayed from the nozzles 3 and 4. This can remove the residual hairs on the pigs and make the surface of the pigs smoother.

[0029] In this device, the slaughtered pig is driven through the singeing device by the conveyor chain mechanism 1. The remaining pig hair on the surface of the pig is singed off by the flames sprayed by the first nozzle 3 and the second nozzle 4, making the surface of the pig smoother. No manual operation is required during the singeing process, which improves the convenience of operation and reduces the labor intensity of the staff. Furthermore, no materials are needed to remove the pig hair, which can avoid the residue of rosin and other substances on the surface of the pig and prevent people from accidentally ingesting it.

[0030] It is worth noting that in this embodiment, the flame nozzle 3 and the flame nozzle 3 have a certain angle with the horizontal line, so that the flame is at a certain angle with the pig suspended on the conveyor chain mechanism 1, so that the flame is tilted to contact the pig's body, thereby reducing the dead corners that the flame cannot reach when singeing, and making the hair on the pig's body singe more cleanly.

[0031] There is a gap between two adjacent sets of mounting plates 2 on the same side, and the flame nozzles on each set of mounting plates 2 are symmetrically arranged about the conveying direction of the conveyor chain mechanism 1.

[0032] Two mounting plates 2 symmetrically arranged about the vertical center line on both sides of the conveyor chain mechanism 1 form a group. Each group of mounting plates 2 is equipped with only one type of flame nozzle, that is, each group of mounting plates 2 is equipped with only one flame nozzle 1 or flame nozzle 3 at the same time. The flame nozzle 1 and flame nozzle 3 are arranged crosswise along the conveying direction of the conveyor chain mechanism 1. The tail ends of the flame nozzle 1 and flame nozzle 3 are connected to pipes containing combustible fuel, which can provide combustible material for the ignition of the flame nozzle 1 and flame nozzle 3.

[0033] Please see Figures 1 to 4As shown, each set of mounting plates 2 has a set of water tanks 5 installed at the top. Each water tank 5 is provided with a water inlet 51 and an exhaust port 52. The exhaust port 52 is installed at the top of the water tank 5.

[0034] A water tank 5 is installed at the top of each mounting plate 2 to provide cooling for the equipment and production workshop. The flames generated by the flames are frequently ignited and generate a lot of heat. The evaporation of water in the water tank 5 can carry away some of the heat from the flames, thereby achieving the purpose of cooling. The water evaporated in the water tank 5 is discharged through the exhaust port 52, while the water inlet 51 is connected to a water pipe to replenish water in the water tank 5 and prevent dry burning. The exhaust port 52 can be connected to an exhaust pipe to discharge the evaporated water to the outside, thereby taking away the heat, or it can be directly discharged to the fume hood 6, which will absorb the evaporated water vapor.

[0035] A smoke exhaust hood 6 is installed above the water tank 5, and a smoke exhaust port 61 is installed at the top of the smoke exhaust hood 6;

[0036] In this embodiment, the smoke hood 6 can remove the smoke generated during flame combustion, the burnt smell generated during singeing, and the water vapor discharged from the water tank 5, which can prevent harmful gases from spreading in the production workshop and thus provide comfort in the production workshop. The smoke hood 6 has a smoke exhaust pipe connected to its exhaust port 61, and an exhaust fan is installed in the smoke exhaust pipe to remove the smoke.

[0037] Please see Figure 5 As shown, the upward tilt angle α of nozzle 3 ranges from 5 to 15°, and the downward tilt angle β of nozzle 4 ranges from 5 to 10°.

[0038] Flame nozzles 1 and 2 have a certain tilt angle, which allows the flames to be at a certain angle to the surface of the pig, preventing incomplete singeing due to the wrinkles in the pigskin.

[0039] Please see Figure 4 As shown, each set of mounting plates 2 is provided with a laser sensor transmitter 7 and a laser sensor receiver 8 along the conveying direction of the conveyor chain mechanism 1, and the laser sensor transmitter 7 and the laser sensor receiver 8 are respectively located on both sides of the conveyor chain mechanism 1.

[0040] In this embodiment, in order to control the ignition accuracy of the first flame nozzle 3 and the second flame nozzle 4, the flame nozzles 3 and 4 are only ignited when a pig passes by, so as to avoid the waste of resources caused by continuous burning. Therefore, a laser sensor transmitter 7 and a laser sensor receiver 8 are set in the conveying direction of each set of mounting plates 2. The laser sensor transmitter 7 emits a laser signal to the laser sensor receiver 8. When the conveyor chain mechanism 1 conveys a pig, it will block the laser sensor transmitter 7 and the laser sensor receiver 8. At this time, a signal will be transmitted to the control device, and the control device will then ignite the first flame nozzle 3 and the second flame nozzle 4 to singe the pig's hair.

[0041] The working principle of this utility is as follows: When singeing pigs, the slaughtered pigs can be hung on the conveyor chain mechanism 1 by hooks. The conveyor chain mechanism 1 will transport the pigs through a series of processing steps in sequence. When the pigs pass through the singeing device, the pig hair is singed off by the flames sprayed from the nozzles 3 and 4. This can remove the residual hair on the pigs and make the surface of the pigs smoother.

[0042] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the art.

Claims

1. A singeing device for the initial processing of pigs during slaughter, characterized in that: The system includes a conveyor chain mechanism (1), on both sides of which are provided multiple sets of mounting plates (2), and the mounting plates (2) are symmetrically arranged about the vertical center line of the conveyor chain mechanism (1). Flame nozzle one (3) and flame nozzle two (4) are respectively mounted on the mounting plates (2), and the flame nozzle one (3) and flame nozzle two (4) are alternately arranged on the mounting plates (2) along the conveying direction of the conveyor chain mechanism (1). Among them, the flame jet angle of the first flame jet (3) is at an angle α with the horizontal line, and the tilt direction of the first flame jet (3) is upward. The flame jet angle of the second flame jet (4) is at an angle β with the horizontal line, and the tilt direction of the second flame jet (4) is downward.

2. The singeing device for primary processing of pigs according to claim 1, characterized in that: Each set of mounting plates (2) has a set of water tanks (5) installed at the top. Each water tank (5) has an inlet (51) and an outlet (52) installed at the top of the water tank (5).

3. The singeing device for primary processing of pigs according to claim 2, characterized in that: A smoke exhaust hood (6) is provided above the water tank (5), and a smoke exhaust port (61) is provided at the top of the smoke exhaust hood (6).

4. The singeing device for primary processing of pigs according to claim 1, characterized in that: The upward tilt angle α of the first flame nozzle (3) ranges from 5 to 15°, and the downward tilt angle β of the second flame nozzle (4) ranges from 5 to 10°.

5. The singeing device for primary processing of pigs according to claim 1, characterized in that: Each set of mounting plates (2) is provided with a laser sensor transmitter (7) and a laser sensor receiver (8) along the conveying direction of the conveyor chain mechanism (1). The laser sensor transmitter (7) and the laser sensor receiver (8) are respectively located on both sides of the conveyor chain mechanism (1).

6. The singeing device for primary processing of pigs according to claim 1, characterized in that: There is a gap between two adjacent sets of mounting plates (2) on the same side, and the flame nozzles on each set of mounting plates (2) are symmetrically arranged about the conveying direction of the conveyor chain mechanism (1).

Citation Information

Patent Citations

  • On-line unhairing device for pig heads

    CN214015748U