A multi-level ham smoking and baking apparatus
By adopting a suspension structure and a rotation design driven by a motor in the smoking and baking equipment, the problem of uneven smoking of ham has been solved, achieving uniform smoking of all parts of the ham and improving smoking quality and throughput.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN ER-SHANG YINBIN MEAT FOOD CO LTD
- Filing Date
- 2025-07-06
- Publication Date
- 2026-07-03
AI Technical Summary
Uneven smoking is a common problem with ham during the smoking process, especially when it is hung in multiple layers. The difference in smoking degree between the upper and lower layers and between the inner and outer rings is obvious, which affects the product quality.
A multi-layer ham smoking and roasting device is designed. By setting a suspension structure and driving a motor to rotate the mounting frame inside the smoking barrel, the ham as a whole rotates due to gear meshing. With the help of the central exhaust pipe to deliver the flue gas, it is ensured that each part is evenly contacted with the flue gas, and the flue gas is filtered through the filter cartridge before being discharged.
This method achieves uniformity in color, flavor, and doneness across all parts of the ham, reduces smoking differences between the upper and lower layers and between the inner and outer rings, increases the amount of smoked per batch, and improves product quality and efficiency.
Smart Images
Figure CN224440258U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ham processing technology, and in particular to a multi-layer ham smoking and baking equipment. Background Technology
[0002] Ham processing is a complex process involving multiple steps such as material selection, curing, fermentation, and drying. The ham-making process varies slightly from region to region. Smoked ham is a meat product made through curing and smoking processes, which has a unique flavor and a long shelf life. The smoking process not only gives the ham a special aroma but also inhibits bacterial growth and extends its shelf life.
[0003] In the smoking process of ham processing, hams are usually hung in a fixed position, and can only be exposed to smoke on one side or in a partial manner. This can easily lead to some areas being over-smoked and others under-smoked, resulting in inconsistent color, flavor and doneness of the ham, which affects product quality. At the same time, the smoke is mostly introduced from one side or in a partial manner, making it difficult to diffuse evenly inside the equipment. Especially when multiple layers are hung, the degree of smoke exposure of the hams on the upper and lower layers and the inner and outer rings is significantly different, which further aggravates the problem of uneven smoking.
[0004] Therefore, it is necessary to provide a new multi-layer ham smoking and baking equipment to solve the above-mentioned technical problems. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides a new multi-layer ham smoking and baking equipment.
[0006] The multi-layer ham smoking and baking equipment provided by this utility model includes: a smoking barrel, a barrel door installed on the side wall of the smoking barrel, and a suspension structure installed inside the smoking barrel;
[0007] The suspension structure includes a mounting frame rotatably connected to the inside of the smoke chamber. A drive motor is fixedly mounted on the top of the smoke chamber, and the output end of the drive motor is fixedly connected to the top of the mounting frame. Multiple vertically distributed fixing rings are fixedly mounted on the mounting frame, and multiple ring-shaped gears are rotatably connected to each fixing ring. A hook is fixedly mounted on the lower end of each gear.
[0008] The smoke chamber is equipped with a drive disc that drives the gear to rotate. The drive disc includes multiple drive rings fixed inside the smoke chamber. The inner wall of each drive ring has a toothed groove that meshes with the gear.
[0009] The fumigation barrel is also equipped with a smoke conveying structure on one side. The smoke conveying structure includes a vertically inserted air pipe at the center of the mounting frame. The outer wall of the air pipe has evenly distributed exhaust holes.
[0010] The upper part of the fumigation barrel is also equipped with a filter cylinder to filter the smoke before it is discharged.
[0011] Preferably, the mounting frame includes two rotating rings respectively rotatably connected to the bottom and top of the smoke chamber. The upper rotating ring is fixedly connected to the output end of the drive motor. Multiple vertically distributed mounting rings are installed between the two rotating rings. Multiple circumferentially distributed vertical rods are fixedly installed between the two rotating rings, and the multiple vertical rods pass through the multiple mounting rings and are fixedly connected to them. Multiple circumferentially distributed horizontal rods are fixedly installed on the outer walls of the multiple mounting rings. The multiple horizontal rods on each mounting ring are respectively fixedly connected to the inner walls of the multiple fixed rings.
[0012] Preferably, the gas supply pipe located in the fumigation barrel is situated between multiple vertical rods, and a section of the gas supply pipe inside the fumigation barrel is coaxially arranged with the rotating ring and the mounting ring.
[0013] Preferably, multiple connecting rods are fixedly installed on the outer ring wall of the drive ring, and multiple axially distributed support rings are fixedly installed on the inner wall of the smoking barrel, and the multiple support rings are respectively fixedly connected to the multiple connecting rods fixed on the corresponding drive ring.
[0014] Preferably, the flue gas conveying structure includes a smoke chamber installed on one side of the smoking barrel for burning wood to generate flue gas, a smoke pump installed on one side of the smoking barrel, one end of the gas delivery pipe located outside the smoking barrel being connected to the output end of the smoke pump, an intake pipe being connected to the input end of the smoke pump, and the other end of the intake pipe being fixed to the top of the smoke chamber and communicating with its interior.
[0015] Preferably, the fumigation barrel has an opening at the top, the filter cylinder is installed at the opening, the filter cylinder includes a cylinder body filled with activated carbon, and a cylinder cover is installed at the upper end of the cylinder body. Exhaust ports are opened at the bottom of the cylinder body and on the cylinder cover.
[0016] Preferably, the cylinder body is threaded to the port, and the cylinder cover is threaded to the cylinder body.
[0017] Preferably, the lower side wall of the barrel door is located above the inner bottom wall of the fumigation barrel.
[0018] Compared with related technologies, the multi-layer ham smoking and baking equipment provided by this utility model has the following beneficial effects:
[0019] The ham inside the smoking barrel of this utility model rotates as a whole with the mounting frame, and can also rotate independently through gear meshing, so that every part of the ham can be evenly contacted with the smoke, ensuring consistent color, flavor and doneness. The gas supply pipe exhausts gas in a ring from the center of the mounting frame. When the smoke diffuses to the surroundings, it can cover all the ham on the multiple fixing rings in conjunction with the double rotation of the ham, further reducing the smoking difference between the upper and lower layers and the inner and outer rings. The multiple vertically distributed fixing rings realize a multi-layer suspension design, which can accommodate more ham at one time compared to single-layer suspension, significantly increasing the processing capacity of a single smoking. Attached Figure Description
[0020] Figure 1 A schematic diagram of a preferred embodiment of the multi-layer ham smoking and baking equipment provided by this utility model;
[0021] Figure 2 for Figure 1 The diagram shows the positional structure of the assembled suspension structure and flue gas conveying structure.
[0022] Figure 3 for Figure 1 The diagram shows the structural schematic of the suspension structure.
[0023] Figure 4 for Figure 1 The diagram shows the structure of the drive disk.
[0024] Figure 5 for Figure 1 The diagram shows the structure of the flue gas conveying structure.
[0025] Figure 6 for Figure 1 The diagram shows the structure of the filter cartridge.
[0026] Numbered in the diagram: 1. Smoke chamber; 2. Chamber door; 3. Suspension structure; 31. Drive motor; 32. Mounting bracket; 321. Rotary ring; 322. Vertical rod; 323. Mounting ring; 324. Horizontal rod; 33. Fixing ring; 34. Gear; 35. Hook; 4. Drive disc; 41. Drive ring; 411. Gear groove; 42. Support ring; 43. Connecting rod; 5. Smoke conveying structure; 51. Smoke chamber; 52. Smoke pump; 53. Intake pipe; 54. Gas delivery pipe; 541. Exhaust port; 6. Filter cartridge; 61. Cylinder body; 62. Cylinder cover; 621. Exhaust port. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0028] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.
[0029] Please see Figures 1 to 6 This utility model provides a multi-layer ham smoking and baking equipment, which includes: a smoking barrel 1, a barrel door 2 installed on the side wall of the smoking barrel 1, and a suspension structure 3 installed inside the smoking barrel 1; the smoking barrel 1 is a barrel body used to send ham into its interior for smoking operation, and the barrel door 2 is used for loading and unloading operations.
[0030] In the embodiments of this utility model, please refer to Figures 1 to 6 The suspension structure 3 includes a mounting frame 32 rotatably connected inside the smoke chamber 1. A drive motor 31 is fixedly mounted on the top of the smoke chamber 1, and the output end of the drive motor 31 is fixedly connected to the top of the mounting frame 32. Multiple vertically distributed fixing rings 33 are fixedly mounted on the mounting frame 32, and multiple ring-shaped gears 34 are rotatably connected to each fixing ring 33. A hook 35 is fixedly mounted on the lower end of each gear 34. A drive disc 4 for driving the gears 34 to rotate is installed inside the smoke chamber 1. The drive disc 4 includes multiple drive rings 41 fixed inside the smoke chamber 1. The inner wall of the drive rings 41 has grooves 411 that mesh with the gears 34. A smoke conveying structure 5 is also installed on one side of the smoke chamber 1. The smoke conveying structure 5 includes a section of air supply pipe 54 vertically inserted into the center of the mounting frame 32. The outer wall of the air supply pipe 54 has evenly distributed exhaust holes 541. A filter cylinder 6 for filtering the smoke before discharging it is also installed at the top of the smoke chamber 1.
[0031] It should be noted that the hams are suspended on hooks 35, and multiple fixing rings 33 are used for multi-layer suspension of the hams, allowing for the smoking of a larger number of hams at once. During the smoking process, external equipment delivers smoke through the air supply pipe 54. The smoke is then emitted in a ring from inside the mounting frame 32 through the exhaust port 541 to smoke the suspended multi-layer hams. Simultaneously, the drive motor 31 controls the rotation of the mounting frame 32, rotating the suspended hams for smoking. Because the annular toothed groove 411 on the drive ring 41 meshes with the gear 34, the gear 34 rotates along with the fixing rings 33, thereby driving the hams suspended below by the hooks 35 to rotate as well. In other words, the hams rotate along with the mounting frame 32, and the hams themselves also rotate. The ham inside the smoking barrel 1 of this utility model rotates as a whole with the mounting frame 32, and can also rotate independently through the meshing of gear 34. This avoids the problem of "one side being fully smoked and the other side being weak" in traditional fixed hanging, allowing every part of the ham to be evenly contacted with the smoke, ensuring consistent color, flavor and doneness. The gas pipe 54 exhausts gas in a ring from the center of the mounting frame 32. When the smoke diffuses to the surroundings, it can cover all the hams on the multiple fixed rings in conjunction with the double rotation of the ham, further reducing the smoking difference between the upper and lower layers and the inner and outer rings. The multiple vertically distributed fixed rings 33 realize a multi-layer suspension design, which can accommodate more hams at one time compared to single-layer suspension, significantly increasing the processing capacity of a single smoking session. The smoke from the smoking process is finally filtered through the filter cartridge 6 before being discharged.
[0032] Preferably, the mounting frame 32 includes two rotating rings 321 respectively rotatably connected to the bottom and top of the smoke chamber 1. The upper rotating ring 321 is fixedly connected to the output end of the drive motor 31. A plurality of vertically distributed mounting rings 323 are installed between the two rotating rings 321. A plurality of circumferentially distributed vertical rods 322 are fixedly installed between the two rotating rings 321, and the plurality of vertical rods 322 pass through the plurality of mounting rings 323 and are fixedly connected to them. A plurality of circumferentially distributed horizontal rods 324 are fixedly installed on the outer walls of the plurality of mounting rings 323. The plurality of horizontal rods 324 on each mounting ring 323 are respectively fixedly connected to the inner walls of the plurality of fixed rings 33. Ring 321 is rotatably connected to the top and bottom of the smoking barrel 1, forming a stable rotating shaft structure. The upper ring 321 is directly connected to the drive motor 31, and the lower ring provides support to ensure that the multi-layer fixed rings 33 maintain coaxiality when rotating. The center of the ring 321 and the mounting ring 323 is used for the installation of the gas supply pipe 54. The vertical rod 322 connects the ring 321 and the mounting ring 323, while ensuring that the gas supply pipe 54 can deliver the smoke from inside the mounting frame 32. The horizontal rod 324 is designed to increase the distance between the hook 35 and the mounting ring 323, ensuring that the ham has enough space to be suspended without contacting the vertical rod 322 and the mounting ring 323.
[0033] Furthermore, the gas supply pipe 54 located in the smoking barrel 1 is situated between multiple vertical rods 322, and a section of the gas supply pipe 54 inside the smoking barrel 1 is coaxially arranged with the rotating ring 321 and the mounting ring 323. The multiple vertical rods 322 distributed in a ring protect the gas supply pipe 54, and the coaxial arrangement ensures that the mounting frame 32 rotates stably without contacting the gas supply pipe 54. At the same time, the gas supply pipe 54 is located at the center of the mounting frame 32, so the oil stains falling from the ham being smoked will not come into contact with the gas supply pipe 54.
[0034] Preferably, multiple connecting rods 43 are fixedly installed on the outer ring wall of the drive ring 41, and multiple axially distributed support rings 42 are fixedly installed on the inner wall of the smoking barrel 1. The multiple support rings 42 are respectively fixedly connected to the multiple connecting rods 43 fixed on the corresponding drive ring 41. The support rings 42 are fixed inside the smoking barrel 1, and the drive ring 41 is connected and fixed to the support rings 42 through the connecting rods 43, so as to ensure that the suspended ham is kept at a sufficient distance from the inner wall of the smoking barrel 1 and to avoid the ham from contacting the inner wall of the smoking barrel 1. This connection method of the drive ring 41 ensures that the gear 34 can be driven to rotate while ensuring that the smoke can diffuse smoothly inside the smoking barrel 1.
[0035] The lower side wall of the barrel door 2 is located above the inner bottom wall of the smoking barrel 1. During the smoking process, impurities and oil stains will fall off the ham. Since the lower end of the barrel door 2 is higher than the inner bottom wall of the smoking barrel 1, the oil stains and impurities will remain inside the smoking barrel 1. To facilitate the subsequent treatment of impurities and oil stains, a drain pipe can be installed at the bottom of the smoking barrel 1. The connection between the drain pipe and the bottom of the smoking barrel 1 is its lowest point, which can facilitate the entry of impurities and oil stains, and at the same time facilitate the subsequent discharge of rinsing water inside the smoking barrel 1. A valve is installed on the drain pipe. When it is necessary to close the drain pipe, it can prevent the leakage of smoke during the smoking process. The valve can only be opened when in use to clean and discharge oil stains and impurities.
[0036] Furthermore, the smoking temperature of ham is generally 60-80℃ (some processes can reach 90℃). To ensure that the temperature inside the smoking barrel 1 reaches the set temperature, an electric heating auxiliary device can be installed inside the smoking barrel 1 to facilitate temperature adjustment as needed. To prevent damage to the internal components of the smoking barrel 1 from high temperatures, the smoking barrel 1 can be made of food-grade stainless steel (such as 304 stainless steel), which is heat-resistant (can withstand temperatures above 200℃), oxidation-resistant, corrosion-resistant, and has a smooth, easy-to-clean surface, meeting food processing hygiene standards and adapting to the high-temperature environment and corrosive components in the smoke (such as phenols and aldehydes). The rotating ring 321, vertical rod 322, mounting ring 323, horizontal rod 324, and fixing ring 33 can also be made of 304 stainless steel or high-temperature resistant alloys (such as nickel-chromium alloys), possessing high strength and high-temperature stability. Driven by the drive motor 31, the rotating ring... When rotating, it can withstand the weight of the ham and the mechanical stress under high temperature, and is not easily deformed; the gear 34 and hook 35 can be made of high temperature bearing steel or alloy steel with high temperature anti-rust treatment, which is wear-resistant and high temperature resistant, ensuring smooth gear meshing and transmission. The hook can withstand high temperature and is not easily broken or corroded while suspending the ham; the drive ring 41, support ring 42, and connecting rod 43 can be made of 304 stainless steel and fixed inside the smoking barrel. They need to withstand high temperature and flue gas corrosion for a long time. Stainless steel material can ensure its structural stability, and the meshing of the tooth groove 411 and the gear 34 is not affected by high temperature. The gas pipe 54 can be made of food-grade high temperature resistant plastic (such as polytetrafluoroethylene, PTFE) or 304 stainless steel pipe. Polytetrafluoroethylene can withstand high temperature above 260℃, has strong chemical stability, and will not release harmful substances due to the components in the flue gas or high temperature; stainless steel pipe has higher strength and is suitable for long-term high temperature flue gas transportation.
[0037] Furthermore, to ensure that the drive motor 31 is not affected by high temperatures, a high-temperature resistant three-phase asynchronous motor can be selected for the drive motor 31. This type of motor can withstand ambient temperatures above 100℃ (far exceeding the maximum smoking temperature of 90℃ inside the equipment) and has good dustproof and moisture-proof performance. It can adapt to the influence of a small amount of smoke and water vapor in the smoking environment. At the same time, a motor with a power of 500-1500W can be selected according to the total weight of the mounting frame and the suspended ham (the load needs to be considered for multi-layer suspension) to ensure stable drive of the mounting frame rotation. The motor output shaft can penetrate the top of the smoking barrel through a heat-insulating coupling (such as using glass fiber reinforced polytetrafluoroethylene material) and connect to the rotating ring 321 on the inner top. The motor is separated from the high-temperature environment inside the barrel through physical isolation. The heat-insulating coupling can block the heat inside the barrel from being conducted to the motor and prevent the motor shell from directly contacting the high temperature.
[0038] Furthermore, to prevent impurities and oil stains falling off during the smoking process of the ham from affecting the rotation of the gear 34, a ring-shaped high-temperature resistant metal protective cover (such as 304 stainless steel) can be installed at the connection position between the fixed ring 33 and the gear 34. The protective cover has an umbrella-shaped or ring-shaped structure, covering the meshing tooth surface and rotating shaft of the gear 34, while also shielding the drive ring 41 to prevent oil stains and impurities falling off the ham above from directly contacting the gear 34, tooth groove 411, and rotating shaft of the gear 34.
[0039] Furthermore, in this utility model, the exhaust port 541 of the gas supply pipe 54 can adopt a gradually increasing aperture design, with the aperture gradually increasing from bottom to top (e.g., 5mm at the bottom and 8mm at the top) to offset the pressure loss during the rise of the flue gas and ensure that the amount of smoke received by each layer of ham is consistent.
[0040] In the embodiments of this utility model, please refer to Figures 1 to 6 The flue gas conveying structure 5 includes a smoke chamber 51 installed on one side of the smoke chamber 1 for burning wood to generate flue gas. A smoke pump 52 is also installed on one side of the smoke chamber 1. One end of the gas pipe 54 located outside the smoke chamber 1 is connected to the output end of the smoke pump 52. The input end of the smoke pump 52 is connected to the suction pipe 53, and the other end of the suction pipe 53 is fixed to the top of the smoke chamber 51 and communicates with its interior.
[0041] It should be noted that: the smoke chamber 51 is used to burn the wood used for smoking the ham. The smoke generated by the burning wood is drawn in through the suction pipe 53 under the operation of the smoke pump 52, and then transported to the gas supply pipe 54 to smoke the ham suspended inside the smoke chamber 1.
[0042] To prevent dust particles from entering the smoking barrel 1 from the smoke generated by the burning wood inside the smoke chamber 51, a high-temperature resistant dust cover can be installed at the connection between the suction pipe 53 and the smoke chamber 51. After filtering the intake smoke, the dust-free smoke enters the smoking barrel 1 to smoke the ham, ensuring the smoking quality of the ham.
[0043] In the embodiments of this utility model, please refer to Figures 1 to 6 The top of the fumigation barrel 1 has an opening, and the filter cylinder 6 is installed at the opening. The filter cylinder 6 includes a cylinder 61 filled with activated carbon, and a cylinder cover 62 is installed at the top of the cylinder 61. Exhaust ports 621 are opened at the bottom of the cylinder 61 and on the cylinder cover 62.
[0044] It should be noted that while the ham is being smoked in the smoking barrel 1, the internal pressure will gradually increase. The pressure can be released through the vent, but the smoke from smoking the ham cannot be directly discharged into the air. Instead, the smoke is filtered through the filter cylinder 6 filled with activated carbon before being discharged into the air, thus protecting the environment. The smoke enters the interior of the cylinder 61 through the exhaust port 621 at the bottom of the cylinder 61, is filtered by the activated carbon, and is then discharged through the exhaust port 621 on the cylinder cover 62.
[0045] Preferably, the cylinder 61 is threaded to the inlet, and the cylinder cover 62 is threaded to the cylinder 61; the threaded connection of the cylinder 61 and the cylinder cover 62 facilitates the removal of the filter cylinder 6 for activated carbon replacement.
[0046] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.
[0047] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A multi-layer ham smoking and baking apparatus comprising a smoking barrel (1), a barrel door (2) is installed on the side wall of the smoking barrel (1), characterized in that: The smoke barrel (1) is equipped with a suspension structure (3); The suspension structure (3) includes a mounting frame (32) rotatably connected inside the smoke barrel (1). A drive motor (31) is fixedly installed on the top of the smoke barrel (1), and the output end of the drive motor (31) is fixedly connected to the top of the mounting frame (32). Multiple vertically distributed fixing rings (33) are fixedly installed on the mounting frame (32), and multiple ring-shaped gears (34) are rotatably connected to each fixing ring (33). A hook (35) is fixedly installed at the lower end of the gear (34). The smoke barrel (1) is equipped with a drive disk (4) that drives the gear (34) to rotate. The drive disk (4) includes multiple drive rings (41) fixed inside the smoke barrel (1). The inner wall of the drive ring (41) is provided with tooth grooves (411) that mesh with the gear (34). The fumigation barrel (1) is also equipped with a smoke conveying structure (5) on one side. The smoke conveying structure (5) includes a section of air supply pipe (54) vertically inserted into the center of the mounting frame (32). The outer wall of the air supply pipe (54) is provided with evenly distributed exhaust holes (541). The upper end of the fumigation barrel (1) is also equipped with a filter cylinder (6) for filtering the flue gas before it is discharged.
2. The multi-level ham smokehouse of claim 1, wherein, The mounting bracket (32) includes two rotating rings (321) that are rotatably connected to the bottom and top of the smoke barrel (1), respectively. The upper rotating ring (321) is fixedly connected to the output end of the drive motor (31). A plurality of vertically distributed mounting rings (323) are installed between the two rotating rings (321). A plurality of circumferentially distributed vertical rods (322) are fixedly installed between the two rotating rings (321), and the plurality of vertical rods (322) pass through the plurality of mounting rings (323) and are fixedly connected to them. A plurality of circumferentially distributed horizontal rods (324) are fixedly installed on the outer side wall of the plurality of mounting rings (323). The plurality of horizontal rods (324) on each mounting ring (323) are fixedly connected to the inner wall of the plurality of fixed rings (33).
3. The multi-level ham smokehouse of claim 2, wherein, The gas supply pipe (54) located in the fumigation barrel (1) is located between multiple vertical rods (322), and a section of the gas supply pipe (54) inside the fumigation barrel (1) is coaxially arranged with the rotating ring (321) and the mounting ring (323).
4. The multi-level ham smokehouse of claim 1, wherein, Multiple connecting rods (43) are fixedly installed on the outer ring wall of the drive ring (41), and multiple axially distributed support rings (42) are fixedly installed on the inner wall of the smoke barrel (1). The multiple support rings (42) are respectively fixedly connected to the multiple connecting rods (43) fixed on the corresponding drive ring (41).
5. The multi-level ham smokehouse of claim 1, wherein, The flue gas conveying structure (5) includes a smoke chamber (51) installed on one side of the smoke chamber (1) for burning wood to generate smoke. A smoke pump (52) is also installed on one side of the smoke chamber (1). One end of the gas delivery pipe (54) located outside the smoke chamber (1) is connected to the output end of the smoke pump (52). The input end of the smoke pump (52) is connected to a suction pipe (53), and the other end of the suction pipe (53) is fixed to the top of the smoke chamber (51) and communicates with its interior.
6. The multi-level ham smokehouse of claim 1, wherein, The top of the fumigation barrel (1) is provided with an opening, and the filter cylinder (6) is installed at the opening. The filter cylinder (6) includes a cylinder body (61) filled with activated carbon, and a cylinder cover (62) is installed at the upper end of the cylinder body (61). Exhaust ports (621) are provided at the bottom of the cylinder body (61) and on the cylinder cover (62).
7. The multi-level ham smokehouse of claim 6, wherein, The cylinder body (61) is threaded to the port, and the cylinder cover (62) is threaded to the cylinder body (61).
8. The multi-level ham smokehouse of claim 1, wherein, The lower side wall of the barrel door (2) is located above the inner bottom wall of the fumigation barrel (1).