Smoking, roasting and steaming all-in-one machine

Abstract

The invention relates to a smoking, baking and steaming all-in-one machine, and relates to the field of food processing. The device comprises a feeding part, a combustion chamber and a smoking chamber, a heat insulation room is arranged between the combustion chamber and the smoking chamber; a plurality of layers of smoking and roasting racks which are transversely and longitudinally arranged are arranged in the smoking and roasting chamber; a smoking fan for driving smoke in the combustion chamber to blow to the food to be smoked in the corresponding smoking channel and a smoke concentration sensor for monitoring the smoke concentration are respectively arranged in each smoking channel; a flue gas temperature sensor is further arranged in the combustion chamber to monitor the flue gas temperature in the combustion chamber; the smoking, baking and steaming all-in-one machine further comprises a controller, the controller is used for controlling the feeding speed of the feeding part based on the smoke temperature and controlling the rotating speed of each smoking and baking fan according to the smoke concentration, and the problem that in the prior art, the temperature and the smoke are not evenly distributed in the smoking and baking chamber is solved.

Description

Technical Field

[0001] The invention relates to the field of food processing, and in particular to a fumigation, roasting and steaming machine. Background Art

[0002] In the food processing industry, smoking and roasting equipment plays a vital role, especially in the production of various smoked and roasted foods, such as smoked meat, grilled fish, etc. These equipments use specific processes to make the food absorb specific aromas and increase the depth of flavor, so as to achieve the ideal taste and quality. However, in actual use, smoking and roasting equipment often faces the problems of uneven heat distribution and uneven smoke concentration, which seriously affects the processing effect and quality of food.

[0003] However, in the prior art, due to the unreasonable design of the furnace structure or the heat transfer of the heating part, the heat distribution in the furnace is uneven, the temperature in some areas is too high, and the temperature in some areas is too low. This not only affects the uniform heating of the food, but may also cause local overheating and burning of the food, or insufficient local temperature and fail to achieve the ideal smoking effect. In addition, the inaccuracy of the temperature control system may also lead to uneven heat distribution, causing large temperature fluctuations in the furnace, further affecting the processing quality of the food. Secondly, in the smoking process, smoke is a key factor in giving food a specific flavor. However, due to the uneven distribution of smoke in the furnace, some foods may not be able to fully absorb the smoke, resulting in insufficient flavor; while some foods may produce a bad taste due to excessive absorption of smoke. This uneven smoke concentration is mainly due to the unreasonable design of the smoke generating device or the improper layout of the supply pipeline, which makes the smoke unevenly distributed in the furnace. Summary of the invention

[0004] In view of this, the present invention aims to provide a smoker, grill and steamer with uniform heat and smoke distribution to solve the problems raised by the above-mentioned background technology.

[0005] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0006] A first aspect of the present invention provides a fumigation, roasting and steaming machine, comprising:

[0007] Feeding section, combustion chamber and smoking chamber;

[0008] The feed output end of the feed part is connected to the combustion chamber, and is used to supply fuel to the combustion chamber, so that the fuel burns in the combustion chamber to generate smoke;

[0009] An insulation room is provided between the combustion chamber and the fumigation chamber, and the insulation room is inclined so that water filled in the insulation room is discharged out of the fumigation, baking and steaming machine from a drainage port provided at the lowest point of the insulation room near the combustion chamber, and oil dripping from the fumigation chamber is discharged out of the fumigation, baking and steaming machine from an oil drainage port provided at the lowest point of one side of the fumigation chamber, and an exhaust port is provided at the highest point of the insulation room;

[0010] A plurality of multi-layer smoke-roasting racks arranged transversely and longitudinally are arranged in the smoke-roasting chamber; a plurality of smoke-roasting channels are formed between the smoke-roasting chamber and the smoke-roasting racks and between the smoke-roasting racks, one end of each of the smoke-roasting channels is connected to the combustion chamber, and the other end is connected to the outside of the smoke-roasting and steaming machine; a smoke-roasting fan for driving the smoke in the combustion chamber to blow toward the food to be smoked in the corresponding smoke-roasting channel and a smoke concentration sensor for monitoring the smoke concentration are respectively arranged in each of the smoke-roasting channels;

[0011] The combustion chamber also includes a flue gas temperature sensor to monitor the flue gas temperature in the combustion chamber;

[0012] The fumigation, baking and steaming machine also includes a controller, which is used to control the feeding speed of the feeding part based on the smoke temperature and control the rotation speed of each fumigation and baking fan according to the smoke concentration.

[0013] Preferably, a plurality of heating tube modules and interval temperature sensors respectively arranged near each heating tube module are arranged along the smoking and grilling rack on each of the smoking and grilling channels;

[0014] When the controller is used for smoking, when the smoke temperature collected by the interval temperature sensor is lower than the preset temperature lower limit, the heating tube module corresponding to the interval temperature sensor is turned on; when the smoke temperature collected by the interval temperature sensor is higher than the preset temperature upper limit, the heating tube module corresponding to the interval temperature sensor is turned off.

[0015] Preferably, the controller is also used to turn on each of the heating tube modules when electric baking is performed.

[0016] Preferably, the smoking and roasting rack can be pulled out and installed in the smoking and roasting chamber;

[0017] The smoking and baking chamber is rotatably connected with a smoking and baking operation door near the positions of the smoking and baking racks.

[0018] Preferably, a transparent observation window is provided on the smoking operation door to observe the progress of smoking.

[0019] Preferably, the feeding part comprises a feeding chamber, a storage bin arranged in the feeding chamber, and a screw feeder, and the material input port of the screw feeder is connected to the material discharge port of the storage bin;

[0020] A combustion furnace is arranged in the combustion chamber, and the material output port of the screw feeder is connected to the material input port of the combustion furnace;

[0021] The controller controls the feeding speed of the screw feeder to the combustion furnace based on the flue gas temperature.

[0022] Preferably, an inspection door is rotatably connected to the combustion chamber at a position close to the combustion furnace; and a ventilation window is provided on the inspection door.

[0023] Preferably, a ventilation valve with adjustable opening is provided on the ventilation opening.

[0024] Preferably, a charcoal grilling portion is provided on the top of the feeding chamber;

[0025] The charcoal grilling part comprises a charcoal accommodating drawer which is pullable and installed on the top of the feeding chamber; a charcoal grilling chamber is arranged on the top of the charcoal accommodating drawer, and at least one layer of charcoal grilling racks is arranged horizontally in the charcoal grilling chamber;

[0026] A charcoal grilling operating door is rotatably connected to one side of the charcoal grilling chamber close to each charcoal grill.

[0027] Preferably, an exhaust fan is provided on the charcoal grilling chamber, and a vent is provided on the top of the charcoal grilling chamber.

[0028] Compared with the prior art, the present invention has the following advantages:

[0029] The present invention effectively prevents the heat of the combustion chamber from being transferred to the smoking and roasting chamber by filling water into the insulation room, thereby avoiding uneven heat distribution caused by local heating of each smoking and roasting rack. On the other hand, the present invention dynamically adjusts the feeding speed of the feeding part according to the smoke concentration monitored by the smoke temperature sensor in the combustion chamber through the controller to control the temperature of the smoke in the smoking and roasting chamber; at the same time, the controller drives the smoking and roasting fan to move the smoke in the combustion chamber into and out of each smoking and roasting channel to smoke the food to be smoked, so that the smoke concentration in each channel is similar, avoiding uneven smoke concentration in each channel, which affects the smoking effect of the food to be smoked. At the same time, the balanced inflow of smoke in each channel can also ensure uniform heating in the smoking and roasting chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 It is a front view of the fumigation, baking and steaming machine of the present invention in a fumigation and baking state;

[0033] Figure 3It is a rear view of the fumigation, baking and steaming machine of the present invention in a fumigation and baking state;

[0034] Figure 4 The top view of the smoke-roast-steaming machine of the present invention is in a smoke-roasting state.

[0035] Description of reference numerals:

[0036] 1. Feeding section; 11. Feeding room; 12. Storage bin; 13. Screw feeder; 2. Combustion chamber; 21. Smoke temperature sensor; 22. Combustion furnace; 23. Inspection door; 24. Ventilation window; 25. Ventilation valve; 3. Smoking chamber; 31. Smoking rack; 32. Smoking passage; 33. Smoking fan; 34. Smoke concentration sensor; 35. Heating tube module; 36. Interval temperature sensor; 37. Smoking operation door; 38. Transparent observation window; 4. Insulation room; 41. Drain outlet; 42. Oil drain outlet; 43. Exhaust passage; 5. Controller; 6. Charcoal grill section; 61. Charcoal storage drawer; 62. Charcoal grill chamber; 63. Charcoal grill; 64. Charcoal grill operation door; 65. Exhaust fan; 66. Ventilation outlet. DETAILED DESCRIPTION

[0037] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0038] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "back", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0039] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installed", "connected", "connected", and "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0040] Example 1

[0041] Overall, if Figure 1 and Figure 2 As shown, the present invention provides a fumigation, baking and steaming machine, comprising:

[0042] A feeding part 1, a combustion chamber 2 and a smoking chamber 3;

[0043] The feed output end of the feed part 1 is connected to the combustion chamber 2 for providing fuel to the combustion chamber 2 so that the fuel burns in the combustion chamber 2 to produce smoke; more specifically, the fuel is generally fruit wood chips or fruit wood blocks, etc.; this embodiment is not limited here.

[0044] An insulating room 4 is arranged between the combustion chamber 2 and the smoking and baking chamber 3. The insulating room 4 is arranged at an angle so that the water filled in the insulating room 4 can be discharged from the smoking, baking and steaming machine through a drain port 41 arranged at the lowest point of the insulating room 4 on one side close to the combustion chamber 2, and the oil dripping from the smoking and baking chamber 3 can be discharged from the smoking, baking and steaming machine through an oil drain port 42 arranged at the lowest point of the side close to the smoking and baking chamber 3. An exhaust port 43 is arranged at the highest point of the insulating room 4. In the present invention, the exhaust port 43 can provide sufficient steam for the smoking and baking chamber 3, replenish moisture for the food to be smoked in the smoking and baking chamber 3, and prevent the food to be smoked from losing too much water during smoking, thereby affecting the taste.

[0045] A plurality of multi-layer smoke-roasting racks 31 arranged transversely and longitudinally are arranged in the smoke-roasting chamber 3; a plurality of smoke-roasting channels 32 are formed between the smoke-roasting chamber 3 and the smoke-roasting racks 31 and between the smoke-roasting racks 31; one end of each smoke-roasting channel 32 is connected to the combustion chamber 2, and the other end is connected to the outside of the smoke-roasting and steaming machine; each smoke-roasting channel 32 is provided with a smoke-roasting fan 33 for driving the smoke in the combustion chamber 2 to blow toward the food to be smoked in the corresponding smoke-roasting channel 32, and a smoke concentration sensor 34 for monitoring the smoke concentration;

[0046] The combustion chamber 2 also includes a flue gas temperature sensor 21 to monitor the flue gas temperature in the combustion chamber 2;

[0047] The fumigation, baking and steaming machine further comprises a controller 5, which is used to control the feeding speed of the feeding part 1 based on the smoke temperature and to control the rotation speed of each fumigation fan 33 according to the smoke concentration.

[0048] The working principle of the present invention is as follows:

[0049] Fill the heat insulation room 4 with water (through the water inlet hole, which is not shown in the figure); place the food to be smoked on the smoke grill 31 (the smoked food can be wrapped with tin foil to increase the smoke effect, which is not limited here), ignite the material in the combustion chamber 2, and drive the feeding part 1 to feed the combustion chamber 2 through the controller 5. The controller 5 dynamically adjusts the feeding speed of the feeding part 1 according to the smoke concentration monitored by the smoke temperature sensor 21 in the combustion chamber 2 (PID control can be used for dynamic adjustment, which is not limited here); the controller 5 drives the smoke fan 33 to move the smoke in the combustion chamber 2 into and out of each smoke channel 32 to smoke the food to be smoked, and the smoke is discharged from the smoke-steaming machine after passing through the smoke channel 32. The controller 5 controls the rotation speed of each smoke fan 33 according to the smoke concentration; during the smoke-smoking process, liquids such as oil dripping from the grill fall to the top of the heat insulation room 4, slide to the oil discharge port 42, and are discharged from the oil discharge port 42. The drain outlet 41 of the insulation room 4 can be installed and blocked; at this time, the insulation room 4 filled with water can effectively prevent the heat from the combustion chamber 2 from being transferred to the smoking and baking chamber 3, avoiding local heating and uneven heat distribution; at the same time, the insulation room 4 is heated by the combustion chamber 2, and the water vapor is output from the exhaust port 43 to the smoking and baking chamber 3 to avoid excessive water loss and affecting the taste of the food to be smoked during the smoking process.

[0050] In another working principle, when the fumigation fan 33 is not turned on, the food to be fumigated in the fumigation chamber 3 can be cooked by the steam discharged through the exhaust port 43 .

[0051] The present invention effectively prevents the heat of the combustion chamber 2 from being transferred to the smoking and roasting chamber 3 by filling the insulation room 4 with water, thereby avoiding uneven heat distribution caused by local heating of each smoking and roasting rack 31. On the other hand, the present invention dynamically adjusts the feeding speed of the feeding part 1 according to the smoke concentration monitored by the smoke temperature sensor 21 in the combustion chamber 2 through the controller 5 to control the temperature of the smoke in the smoking and roasting chamber 3; at the same time, the controller 5 drives the smoking and roasting fan 33 to make the smoke in the combustion chamber 2 enter and exit each smoking and roasting channel 32 to smoke the food to be smoked, so that the smoke concentration in each channel is similar, avoiding uneven smoke concentration in each channel, which affects the smoking effect of the food to be smoked. At the same time, the balanced inflow of smoke in each channel can also ensure uniform heating in the smoking and roasting chamber 3.

[0052] In a possible implementation, in order to avoid uneven heating in the smoking and roasting chamber 3 and to achieve more precise control, the present invention is provided with a plurality of heating tube modules 35 and interval temperature sensors 36 respectively provided near each heating tube module 35 along the smoking and roasting rack 31 on each smoking and roasting channel 32;

[0053] When the controller 5 is used for smoking, when the smoke temperature collected by the interval temperature sensor 36 is lower than the preset temperature lower limit, the heating tube module 35 corresponding to the interval temperature sensor 36 is turned on; when the smoke temperature collected by the interval temperature sensor 36 is higher than the preset temperature upper limit, the heating tube module 35 corresponding to the interval temperature sensor 36 is turned off.

[0054] The temperature of each zone of the fumigation and baking chamber 3 is monitored by the zone temperature sensor 36 , and the position with low temperature is heated by the heating tube module 35 , so that the temperature of the fumigation and baking chamber 3 is heated evenly.

[0055] In a possible implementation, in order to conveniently place the food to be smoked, the smoker rack 31 of the present invention can be installed in the smoker chamber 3 in a retractable manner;

[0056] A smoking and roasting operation door 37 is rotatably connected to the smoking and roasting chamber 3 near each smoking and roasting rack 31 , and a user places the food to be smoked on the smoking and roasting rack 31 through the smoking and roasting operation door 37 .

[0057] In a possible implementation, a transparent observation window 38 is provided on the smoke-roasting operation door 37 to observe the progress of smoke-roasting. In order to accurately grasp the progress of smoke-roasting, it is often necessary to observe the color change of the food surface in real time. If the smoke-roasting operation door 37 is opened rashly, the smoke will be released, and the smoked food will be cooled, which will affect the taste of the smoked food itself.

[0058] In a possible implementation, the feeding part 1 includes a feeding chamber 11, a storage bin 12 and a screw feeder 13 arranged in the feeding chamber 11, and a material input port of the screw feeder 13 is connected to a material discharge port of the storage bin 12;

[0059] A combustion furnace 22 is provided in the combustion chamber 2, and the material output port of the screw feeder 13 is connected to the material input port of the combustion furnace 22;

[0060] The controller 5 controls the feeding speed of the screw feeder 13 to the combustion furnace 22 based on the flue gas temperature.

[0061] The present invention realizes automatic filling of materials by controlling the feeding speed of the screw feeder 13 to the combustion furnace 22 based on the flue gas temperature through the controller 5, and the temperature control is more precise and the seasoning efficiency is high.

[0062] In a possible implementation, a maintenance door 23 is rotatably connected to the combustion chamber 2 near the combustion furnace 22; a ventilation window 24 is provided on the maintenance door 23. In the present disclosure, the maintenance door 23 is used by the user to ignite the combustion furnace 22 and inspect the combustion chamber 2, and the ventilation window 24 is used to provide sufficient oxygen for the combustion furnace 22.

[0063] In a possible implementation, a ventilation valve 25 with an adjustable opening is provided on the ventilation opening 66 .

[0064] The ventilation valve 25 can control the combustion efficiency of the combustion furnace 22 and thus the concentration of the flue gas.

[0065] Example 2

[0066] The present invention is similar to the first embodiment, except that the controller 5 is also used to turn on each heating tube module 35 when electric baking is performed. Therefore, the present invention can be used as an electric oven or a baking oven.

[0067] Example 3

[0068] A charcoal grilling portion 6 is provided on the top of the feeding chamber 11;

[0069] The charcoal grilling part 6 comprises a charcoal accommodating drawer 61 which is retractably mounted on the top of the feeding chamber 11; a charcoal grilling chamber 62 is arranged on the top of the charcoal accommodating drawer 61, and at least one layer of charcoal grilling racks 63 is transversely arranged in the charcoal grilling chamber 62;

[0070] A charcoal grilling operating door 64 is rotatably connected to one side of the charcoal grilling chamber 62 close to each charcoal grill 63 .

[0071] In one possible implementation, Figure 3 As shown, the charcoal grilling chamber 62 is provided with an exhaust fan 65. Figure 4 As shown, a vent 66 is provided at the top of the charcoal grilling chamber 62 .

[0072] The charcoal containing drawer 61 of the present invention can be used to place coal. The charcoal containing drawer 61 is divided into two layers separated by a stainless steel grid. The upper layer is used to place coal, and the lower layer is used to contain combustion dust.

[0073] In a possible implementation, the feeding chamber 11 is also rotatably connected to a feeding door for filling materials, and the feeding door is fixedly connected to the controller 5 .

[0074] In summary, the present invention integrates the functions of smoking, charcoal grilling, electric grilling and hot water preparation in one, has a high degree of integration, occupies little space, and can meet the needs of various users.

[0075] This device can independently bake, steam, or smoke and color the product; the smoked and roasted chamber 2 of the steaming, baking and smoking machine of the present invention can also be equipped with sausage hanging rods, trays, etc. to meet the smoked and roasted needs of different smoked foods. This device has a unique wind circulation system design, which effectively ensures the consistency of temperature and humidity of the product during the processing; in this embodiment, the controller 5 can use a programmable logic controller, in conjunction with the human-computer interaction interface on the touch screen, to facilitate user control and display the real-time operating status of the device; in addition, in this device, a variety of process recipes (such as smoke concentration, smoked and roasted time, etc.) can be pre-stored in the programmable logic controller to smoke the placed food to be smoked based on the pre-stored process recipes.

[0076] In this embodiment, the preferred manufacturer of the touch display screen and the programmable logic controller is Delta, various sensors for temperature detection are selected from Omron, the switch devices in the device are selected from Schneider, the whole machine is made of SUS 304 stainless steel, and the transparent observation window 38 is made of three-layer tempered glass. The device can also be optionally equipped with double lighting lamps in the smoking chamber 2; the single production capacity of this device has been tested to be 5-12kg / time.

[0077] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A smoked, roasted and steamed machine, characterized in that: include: A feeding section (1), a combustion chamber (2) and a smoking chamber (3); The feed output end of the feed part (1) is connected to the combustion chamber (2) and is used to supply fuel to the combustion chamber (2), so that the fuel burns in the combustion chamber (2) to generate smoke; An insulation room (4) is provided between the combustion chamber (2) and the fumigation chamber (3), and the insulation room (4) is arranged at an inclination, so that water filled in the insulation room (4) is discharged from the fumigation, baking and steaming machine through a drainage port (41) provided at the lowest point of the insulation room (4) close to the combustion chamber (2), and oil dripping from the fumigation chamber (3) is discharged from the fumigation, baking and steaming machine through an oil drainage port (42) provided at the lowest point of the fumigation chamber (3), and an exhaust port (43) is provided at the highest point of the insulation room (4); A plurality of multi-layered smoking and baking racks (31) arranged transversely and longitudinally are arranged in the smoking and baking chamber (3); a plurality of smoking and baking channels (32) are formed between the smoking and baking chamber (3) and between the smoking and baking racks (31); one end of each of the smoking and baking channels (32) is connected to the combustion chamber (2) and the other end is connected to the outside of the smoking and baking and steaming machine; each of the smoking and baking channels (32) is provided with a smoking and baking fan (33) for driving the smoke in the combustion chamber (2) to blow toward the food to be smoked in the corresponding smoking and baking channel (32) and a smoke concentration sensor (34) for monitoring the smoke concentration; The combustion chamber (2) also includes a flue gas temperature sensor (21) for monitoring the flue gas temperature in the combustion chamber (2); The fumigation, baking and steaming machine further comprises a controller (5), wherein the controller (5) is used to control the feeding speed of the feeding part (1) based on the smoke temperature, and to control the rotation speed of each fumigation fan (33) according to the smoke concentration.

2. The fumigation, roasting and steaming machine according to claim 1, characterized in that: A plurality of heating tube modules (35) and a zone temperature sensor (36) respectively arranged near each heating tube module (35) are arranged on each of the smoking and roasting channels (32) along the smoking and roasting rack (31); When the controller (5) is used for fumigation, when the smoke temperature collected by the interval temperature sensor (36) is less than a preset lower temperature limit, the heating tube module (35) corresponding to the interval temperature sensor (36) is turned on, and when the smoke temperature collected by the interval temperature sensor (36) is greater than a preset upper temperature limit, the heating tube module (35) corresponding to the interval temperature sensor (36) is turned off.

3. The fumigation, roasting and steaming machine according to claim 2, characterized in that: The controller (5) is also used to turn on each of the heating tube modules (35) when electric baking is performed.

4. The fumigation, roasting and steaming machine according to claim 1, characterized in that: The smoking and roasting rack (31) is installed in the smoking and roasting chamber (3) in a drawable manner; A smoking and roasting operating door (37) is rotatably connected to the smoking and roasting chamber (3) near each smoking and roasting rack (31).

5. The smoke-roast-steam all-in-one machine according to claim 4, characterized in that: The fumigation operation door (37) is provided with a transparent observation window (38) for observing the progress of fumigation.

6. The fumigation, roasting and steaming machine according to claim 1, characterized in that: The feeding part (1) comprises a feeding chamber (11), a storage bin (12) arranged in the feeding chamber (11), and a screw feeder (13), wherein the material input port of the screw feeder (13) is connected to the material output port of the storage bin (12); A combustion furnace (22) is arranged in the combustion chamber (2), and a material output port of the screw feeder (13) is connected to a material input port of the combustion furnace (22); The controller (5) controls the feeding speed of the screw feeder (13) to the combustion furnace (22) based on the flue gas temperature.

7. The fumigation, roasting and steaming machine according to claim 6, characterized in that: An inspection door (23) is rotatably connected to a position on the combustion chamber (2) close to the combustion furnace (22); a ventilation window (24) is provided on the inspection door (23).

8. The fumigation, roasting and steaming machine according to claim 7, characterized in that: The ventilation opening (66) is provided with a ventilation valve (25) with an adjustable opening.

9. The fumigation, roasting and steaming machine according to claim 6, characterized in that: A charcoal grilling portion (6) is provided on the top of the feeding chamber (11); The charcoal grilling part (6) comprises a charcoal accommodating drawer (61) which is detachably mounted on the top of the feeding chamber (11); a charcoal grilling chamber (62) is arranged on the top of the charcoal accommodating drawer (61), and at least one layer of charcoal grilling racks (63) is transversely arranged in the charcoal grilling chamber (62); A charcoal grilling operating door (64) is rotatably connected to one side of the charcoal grilling chamber (62) close to each charcoal grill (63).

10. The fumigation, roasting and steaming machine according to claim 9, characterized in that: The charcoal grilling chamber (62) is provided with an exhaust fan (65), and a vent (66) is provided at the top of the charcoal grilling chamber (62).

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