Food powder mixing and drying all-in-one machine
The food powder mixing and drying all-in-one machine with integrated air intake and exhaust ducts solves the problem of separation of mixing and drying equipment in the existing technology, realizes an efficient and low-cost food powder mixing and drying process, and improves the uniformity and consistency of the powder.
Patent Information
- Application Number
- CN202422582924.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-24
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-10-24
AI Technical Summary
In the prior art, food powder mixing and drying require the use of two devices, resulting in low production efficiency and high equipment costs.
A food powder mixing and drying machine is designed, which integrates the air intake and exhaust ducts, and sets an air heating component in the air intake duct to mix and dry the food powder by hot air. The filtration and dehumidification components are combined to ensure air cleanliness and temperature stability.
It realizes instant drying of food powder during the mixing process, reduces the number of equipment and costs, improves the uniformity and consistency of powder, reduces humidity and improves the quietness of the production environment.
Smart Images
Figure CN223393271U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of food powder mixing, and more specifically to a food powder mixing and drying integrated machine. Background Art
[0002] A food powder mixer is a key piece of equipment in a powdered food processing production line, used for mixing cereal powder and other infusion powders. A prior art discloses a food coarse powder mixing mechanism comprising a feeder and a mixing container, wherein the feeder is located directly above the mixing container, and the two are connected via a pipe with a valve. The feeder comprises a housing, with a feed end and a discharge end formed at the upper and lower ends of the housing, respectively. A movable shaft is provided between the housing and the feed end and the discharge end, one of the movable shafts being connected to a drive motor. The interior of the housing forms a first cavity communicating with the feed end, and a second cavity communicating with the discharge end. A double-ended agitator is provided at the bottom of the mixing container, which is driven and connected via a secondary worm gear device provided below the mixing container, which is connected to the drive motor via a primary worm gear device. A vent valve is provided at the top of the mixing container, located next to the pipe, that is connected to the outside atmosphere.
[0003] Before mixing, food powders typically carry a certain amount of moisture, which can cause the powders to clump together, reducing the mixing uniformity and consistency of the powdered product. Furthermore, to ensure greater solubility and a longer shelf life, the food powders, after being mixed using the aforementioned prior art mixers, must be transferred to a dryer for drying. Since mixing and drying require separate equipment, this not only increases operation time and processes, reduces production efficiency, but also increases both equipment investment and operating costs. Utility Model Content
[0004] In view of the problem that the mixing and drying of food powder in the above-mentioned prior art require the use of two devices, which not only reduces production efficiency but also causes high equipment costs, the utility model provides a food powder mixing and drying all-in-one machine, which can dry food powder while mixing it, thereby improving production efficiency and reducing equipment costs.
[0005] In order to solve the above technical problems, the technical solution provided by the present invention is:
[0006] A food powder mixing and drying integrated machine comprises a frame, a stirring barrel provided with a feeding port, and a first stirring component, wherein the stirring barrel is arranged on the frame, the first stirring component is connected to the frame, and at least part of the structure of the first stirring component is located in the inner cavity of the stirring barrel; the machine also comprises an air intake pipe and an exhaust pipe, the air outlet end of the air intake pipe and the air intake end of the exhaust pipe are respectively connected to the inner cavity of the stirring barrel, and an air heating component is provided in the inner cavity of the air intake pipe.
[0007] The air heating component may be a steam heating component, an electric heating component, an infrared heating component, and the like.
[0008] When the above technical solution is implemented, the food powder is first poured into the inner cavity of the mixing barrel through the feeding port, and then air is transported to the inner cavity of the mixing barrel through the air inlet channel, and the air heating component is started to heat the air inside the air inlet channel, so that the gas entering the inner cavity of the mixing barrel is hot gas; after the hot gas enters the inner cavity of the mixing barrel, it can increase the temperature of the food powder in the mixing barrel, thereby promoting the evaporation of moisture in the food powder. At the same time, the hot gas generates convection in the inner cavity of the mixing barrel, so that the moisture on the surface of the food powder quickly separates from the food powder; finally, the hot and humid gas in the inner cavity of the mixing barrel is discharged through the exhaust duct. The above technical solution integrates mixing and drying functions, and can make the food powder dry while mixing and stirring. It can not only reduce the use of equipment and save equipment costs, but also reduce the humidity of the food powder during mixing and stirring, which is conducive to improving the uniformity of the food powder.
[0009] Preferably, the exhaust duct is provided with an induced draft fan, which can increase the gas flow speed inside the exhaust duct, quickly discharge moisture, improve the drying efficiency of the food powder, and keep the interior of the mixing barrel at a stable normal pressure state.
[0010] Preferably, a surface cooling and dehumidifying assembly is further provided in the inner cavity of the air inlet duct, and the air heating assembly is located between the surface cooling and dehumidifying assembly and the air inlet end of the air inlet duct. It should be noted that since the surface cooling and dehumidifying assembly is a prior art, this specification will not further explain its structure and principle. The surface cooling and dehumidifying assembly can dehumidify and cool the air. Dehumidifying the air can prevent moisture in the air from entering the mixing barrel and reducing the drying efficiency of the food powder, while cooling the air can cool the air to a uniform temperature. In this way, the temperature of the air heated by the air heating assembly is more stable, which can avoid inconsistent quality of the food powder product due to uneven air temperature.
[0011] Preferably, a rotary dehumidifier assembly is further provided within the inner cavity of the air inlet duct. At least two surface cooling dehumidifier assemblies are provided, with the rotary dehumidifier assembly positioned between at least two of the surface cooling dehumidifier assemblies. Combining the rotary and surface cooling dehumidifier assemblies for multi-stage dehumidification further reduces air humidity. Furthermore, the rotary dehumidifier assembly can precisely control air humidity, thereby improving humidity stability and facilitating improved consistency in food powder products.
[0012] Preferably, a primary filter structure, a medium filter structure and a high efficiency filter structure are provided in the inner cavity of the air intake pipe, and the primary filter structure, the medium filter structure and the high efficiency filter structure are arranged in sequence along the gas delivery direction of the air intake pipe. It should be noted that the primary filter structure, the medium filter structure and the high efficiency filter structure are all existing technologies, so this specification will not provide a detailed description of the structure and principle of the three. It can be understood that the primary filter structure is used to filter particles larger than 2μm in the air, the medium filter structure is used to filter particles larger than 0.5μm in the air, and the high efficiency filter structure is used to filter particles larger than 0.3μm in the air. The above three filter structures are used to achieve multi-stage filtration of the air, which can ensure that the air entering the mixing barrel has extremely high cleanliness and prevent impurities in the air from contaminating the food powder inside the mixing barrel.
[0013] Since there will be a certain amount of food powder inside the exhaust duct, in order to prevent the food powder from being discharged through the exhaust duct and polluting the external environment, it is preferred that a material blocking barrel is further included, wherein the material blocking barrel is provided with a first opening and a second opening, the first opening being connected to the second opening through the inner cavity of the material blocking barrel; a filter cloth is provided in the inner cavity of the material blocking barrel, and the first opening and the second opening are separated by the filter cloth; the exhaust duct includes a first pipe and a second pipe, the air inlet end of the first pipe is connected to the mixing barrel, the air outlet end of the first pipe is connected to the first opening; the air inlet end of the second pipe is connected to the second opening. Moisture discharged from the mixing barrel enters the inner cavity of the material blocking barrel through the first opening and then passes through the filter cloth. The filter cloth can block the powder in the moisture and absorb a certain amount of moisture, thereby preventing food powder from being discharged outside the exhaust duct.
[0014] Preferably, a muffler is connected to the outlet end of the exhaust duct. Since mufflers are conventional technology, this specification does not provide a detailed description of their structure and working principle. The muffler can interfere with the sound waves generated by the outlet end of the exhaust duct, reducing noise generated during the exhaust process and creating a quieter production environment.
[0015] Preferably, the first stirring assembly includes a first motor and a bottom stirring paddle. The first motor is connected to the frame, and the output shaft of the first motor is vertically arranged. The bottom stirring paddle is located at the bottom of the inner cavity of the mixing barrel and is connected to the output shaft of the first motor. It is understood that the first motor drives the bottom stirring paddle to rotate, thereby stirring the food powder inside the mixing barrel. The bottom stirring paddle can effectively stir the food powder from the bottom to the top, ensuring that the powder is more evenly mixed.
[0016] Preferably, the mixing bowl further includes multiple second stirring assemblies, which are distributed along the circumference of the mixing bowl and are all connected to the frame. Each second stirring assembly includes a second motor and a side stirring paddle, the second motor being connected to the frame, and the output shaft of the second motor being arranged horizontally. The side stirring paddle is located within the inner cavity of the mixing bowl and above the bottom stirring paddle, and is connected to the output shaft of the second motor. The side stirring paddle can effectively remove powder from the side walls of the mixing bowl, preventing powder from accumulating on the side walls. The side stirring paddle, combined with the bottom stirring paddle, can stir the powder in multiple directions, ensuring a more uniform mixing of the different ingredients in the food powder.
[0017] Preferably, a discharge port is provided at the bottom of the mixing barrel, a mounting tube is connected to the discharge port, a pushing assembly is provided within the inner cavity of the mounting tube, a sealing plug is connected to the power output end of the pushing assembly, and the sealing plug is pushed by the pushing assembly to open or close the discharge port; a discharge pipe section is connected to the bottom of the mounting tube, and the discharge port is connected to the inner cavity of the discharge pipe section through the inner cavity of the mounting tube; when the discharge port is open, the inlet end of the discharge pipe section is located between the discharge port and the sealing plug. Before mixing and stirring the food powder, the pushing assembly drives the sealing plug to move to the discharge port to close the discharge port. After the mixing and stirring of the food powder is completed, the pushing assembly drives the sealing plug again to disengage the sealing plug from the discharge port. The bottom stirring paddle then continues to rotate, thereby pushing the food powder to the discharge port, causing the food powder to enter the discharge pipe section through the discharge port and then be discharged through the discharge pipe section for collection of the food powder product.
[0018] The pushing component may be a linear driving component such as a cylinder, an electric push rod, a synchronous belt driving component, a gear rack driving component, etc.
[0019] Beneficial effects of the utility model:
[0020] 1. An air intake duct and an exhaust duct are set on the basis of the mixing barrel and the mixing component, and an air heating component is set in the air intake duct. Hot air is transported to the mixing barrel through the air intake duct, so that the food powder can be mixed and dried at the same time. This not only reduces the number of equipment and equipment costs, but also reduces the humidity of the food powder during mixing and stirring, which is conducive to improving the uniformity of the food powder.
[0021] 2. The air inlet duct is equipped with a surface cooling dehumidification component and a rotary dehumidification component, which can perform multi-stage dehumidification of the air and finely control the humidity and temperature of the air, which is beneficial to improving the consistency of food powder products.
[0022] 3. The air intake pipe is equipped with a primary filter structure, a medium filter structure and a high efficiency filter structure, which can perform multi-stage filtration on the air to ensure that the air entering the mixing barrel has a very high degree of cleanliness and prevent impurities in the air from contaminating the food powder inside the mixing barrel.
[0023] 4. Installing a muffler on the exhaust pipe can reduce the noise generated by the exhaust pipe during the exhaust process and make the production environment quieter. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a structural diagram of a food powder mixing and drying machine;
[0025] Figure 2 is a distribution diagram of the second stirring component;
[0026] Figure 3 yes Figure 1 A magnified schematic diagram of part A in the middle;
[0027] Figure 4 yes Figure 1 Enlarged schematic diagram of part B in the middle.
[0028] In the accompanying drawings: 1-frame; 2-mixing barrel; 201-discharge port; 3-air inlet pipe; 4-exhaust pipe; 401-first pipe; 402-second pipe; 5-air heating component; 6-surface cooling and dehumidification component; 7-rotor dehumidification component; 8-primary filter structure; 9-medium-efficiency filter structure; 10-high-efficiency filter structure; 11-material blocking barrel; 1101-first port; 1102-second port; 12-filter cloth; 13-muffler; 14-induced draft fan; 15-first motor; 16-bottom stirring paddle; 17-side stirring paddle; 18-mounting pipe; 19-pushing component; 20-sealing plug; 21-discharge pipe section; 22-second motor. DETAILED DESCRIPTION
[0029] The drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate the embodiments, some components in the drawings may be omitted, enlarged, or reduced in size, and do not represent actual product dimensions. Those skilled in the art will understand that some well-known structures and their descriptions may be omitted from the drawings. The positional relationships depicted in the drawings are for illustrative purposes only and should not be construed as limiting this patent.
[0030] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "long", "short", etc. indicating directions or positional relationships, they are based on the directions or positional relationships shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.
[0031] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:
[0032] Example 1
[0033] This embodiment is the first embodiment of a food powder mixing and drying machine. Figure 1 As shown, it includes a frame 1, a mixing barrel 2, and a first mixing assembly. The mixing barrel 2 is mounted on the frame 1, and a feeding port (not shown) is provided at the top of the mixing barrel 2. The first mixing assembly is connected to the frame 1, and a portion of the first mixing assembly is located within the inner cavity of the mixing barrel 2. Furthermore, the machine includes an air intake duct 3 and an exhaust duct 4. The outlet end of the air intake duct 3 and the air intake end of the exhaust duct 4 are respectively connected to the inner cavity of the mixing barrel 2, wherein the air intake end of the exhaust duct 4 is located at the top of the mixing barrel 2. An air heating assembly 5 is provided within the inner cavity of the air intake duct 3.
[0034] Furthermore, an induced draft fan 14 is provided on the exhaust duct 4. The induced draft fan 14 can increase the gas flow speed inside the exhaust duct 4, quickly discharge moisture, improve the drying efficiency of the food powder, and keep the inside of the mixing barrel 2 stable at normal pressure.
[0035] Specifically, the first stirring assembly includes a first motor 15 and a bottom stirring paddle 16. The first motor 15 is connected to the frame 1, and the output shaft of the first motor 15 is arranged vertically. The bottom stirring paddle 16 is located at the bottom of the inner cavity of the mixing barrel 2 and is connected to the output shaft of the first motor 15. It can be understood that the first motor 15 drives the bottom stirring paddle 16 to rotate, thereby stirring the food powder inside the mixing barrel 2. The bottom stirring paddle 16 can effectively stir the food powder from the bottom to the top, ensuring that the powder is relatively evenly mixed.
[0036] Further, combined with Figure 1 and Figure 2 As shown, multiple second stirring assemblies are also included. These assemblies are distributed along the circumference of the mixing barrel 2 and are all connected to the frame 1. Specifically, each second stirring assembly includes a second motor 22 and a side stirring paddle 17. The second motor 22 is connected to the frame 1, and the output shaft of the second motor 22 is arranged horizontally. The side stirring paddle 17 is located within the inner cavity of the mixing barrel 2 and above the bottom stirring paddle 16. The side stirring paddle 17 is connected to the output shaft of the second motor 22. The side stirring paddle 17 can effectively handle powder on the side walls of the mixing barrel 2, preventing powder from depositing on the side walls of the mixing barrel 2. Combined with the side stirring paddle 17 and the bottom stirring paddle 16, the powder can be stirred in multiple directions, ensuring that the different ingredients in the food powder are more evenly mixed.
[0037] Furthermore, if Figure 3 As shown, the mixing barrel 2 has a discharge port 201 at the bottom. A mounting tube 18 is connected to the discharge port 201. A push assembly 19 is located within the inner cavity of the mounting tube 18. The power output end of the push assembly 19 is connected to a sealing plug 20. The push assembly 19 pushes the sealing plug 20 to open or close the discharge port 201. A discharge pipe section 21 is connected to the bottom of the mounting tube 18. The discharge port 201 communicates with the inner cavity of the discharge pipe section 21 through the inner cavity of the mounting tube 18. When the discharge port 201 is open, the inlet end of the discharge pipe section 21 is located between the discharge port 201 and the sealing plug 20. Before mixing the food powder, the push assembly 19 drives the sealing plug 20 to move to the discharge port 201, sealing it. After mixing the food powder, the push assembly 19 drives the sealing plug 20 again, freeing it from the discharge port 201. Then the bottom stirring paddle 16 continues to rotate, thereby pushing the food powder to the discharge port 201, so that the food powder enters the discharge pipe section 21 through the discharge port 201 and is discharged through the discharge pipe section 21 for collection of the food powder product.
[0038] The working principle or workflow of this embodiment is as follows: during implementation, food powder is first poured into the inner cavity of the mixing barrel 2 through the feeding port, and then air is transported to the inner cavity of the mixing barrel 2 through the air intake channel, and the air heating component 5 is started to heat the air inside the air intake channel, so that the gas entering the inner cavity of the mixing barrel 2 is all hot air; after the hot air enters the inner cavity of the mixing barrel 2, it can increase the temperature of the food powder in the mixing barrel 2, thereby promoting the evaporation of moisture in the food powder. At the same time, the hot air generates convection in the inner cavity of the mixing barrel 2, so that the moisture on the surface of the food powder quickly separates from the food powder; finally, the hot and humid air in the inner cavity of the mixing barrel 2 is discharged through the exhaust pipe 4.
[0039] The beneficial effects of this embodiment are as follows: the above technical solution integrates mixing and drying functions, an air intake duct and an exhaust duct are provided on the basis of the mixing barrel and the mixing assembly, and an air heating assembly is provided in the air intake duct, and hot air is transported to the mixing barrel through the air intake duct, so that the food powder can be mixed and dried at the same time, which not only reduces the number of equipment and equipment costs, but also reduces the humidity of the food powder during mixing and stirring, which is conducive to improving the uniformity of the food powder.
[0040] Example 2
[0041] This embodiment is a second embodiment of a food powder mixing and drying machine. This embodiment is similar to the first embodiment, except that it is combined with Figure 1 and Figure 4 As shown, a surface cooling and dehumidifying assembly 6 is also provided within the inner cavity of the air intake duct 3, and the air heating assembly 5 is located between the surface cooling and dehumidifying assembly 6 and the air intake end of the air intake duct 3. It should be noted that since the surface cooling and dehumidifying assembly 6 is prior art, this specification does not further describe its structure and principle. The surface cooling and dehumidifying assembly 6 dehumidifies and cools the air. Dehumidifying the air prevents moisture from entering the mixing barrel 2 and reducing the drying efficiency of the food powder, while cooling the air to a uniform temperature. This results in a more stable temperature for the air heated by the air heating assembly 5, preventing inconsistent food powder product quality due to uneven air temperature.
[0042] Furthermore, a rotary dehumidifier assembly 7 is provided within the inner cavity of the air inlet duct 3. Two surface cooling dehumidifier assemblies 6 are provided, with the rotary dehumidifier assembly 7 located between the two surface cooling dehumidifier assemblies 6. The combination of the rotary dehumidifier assembly 7 and the surface cooling dehumidifier assemblies 6 provides multi-stage dehumidification of the air, further reducing the humidity of the air. Furthermore, the rotary dehumidifier assembly 7 can precisely control the humidity of the air, thereby improving the stability of the air humidity and facilitating the consistency of the food powder product.
[0043] Furthermore, the air heating component 5 is a steam heating component.
[0044] Furthermore, a primary filter structure 8, a medium filter structure 9 and a high efficiency filter structure 10 are provided in the inner cavity of the air intake pipe 3, and the primary filter structure 8, the medium filter structure 9 and the high efficiency filter structure 10 are arranged in sequence along the gas delivery direction of the air intake pipe 3. It should be noted that the primary filter structure 8, the medium filter structure 9 and the high efficiency filter structure 10 are all existing technologies, so this specification will no longer provide a detailed description of the structure and principle of the three. It can be understood that the primary filter structure 8 is used to filter particles larger than 2 μm in the air, the medium filter structure 9 is used to filter particles larger than 0.5 μm in the air, and the high efficiency filter structure 10 is used to filter particles larger than 0.3 μm in the air. The above three filter structures are used to achieve multi-stage filtration of the air, which can ensure that the air entering the mixing barrel 2 has extremely high cleanliness, and prevent impurities in the air from contaminating the food powder inside the mixing barrel 2.
[0045] Other features, working principles and beneficial effects of this embodiment are consistent with those of embodiment 1.
[0046] Example 3
[0047] This embodiment is a second embodiment of a food powder mixing and drying machine. This embodiment is similar to the first embodiment, except that Figure 1 As shown, the invention also includes a material blocking barrel 11, which is located between the mixing barrel 2 and the induced draft fan 14. The material blocking barrel 11 is provided with a first opening 1101 and a second opening 1102. The first opening 1101 is connected to the second opening 1102 through the inner cavity of the material blocking barrel 11; a filter cloth 12 is provided in the inner cavity of the material blocking barrel 11, and the first opening 1101 and the second opening 1102 are separated by the filter cloth 12; the exhaust duct 4 includes a first duct 401 and a second duct 402. The air inlet end of the first duct 401 is connected to the mixing barrel 2, and the air outlet end of the first duct 401 is connected to the first opening 1101; the air inlet end of the second duct 402 is connected to the second opening 1102. Moisture discharged from the mixing barrel 2 enters the inner cavity of the material blocking barrel 11 through the first opening 1101 and then passes through the filter cloth 12. The filter cloth 12 can block powder in the moisture and absorb a certain amount of moisture, thereby preventing food powder from being discharged outside the exhaust duct and affecting the external environment.
[0048] Furthermore, a muffler 13 is connected to the outlet end of the exhaust pipe 4. Since muffler 13 is a prior art technology, this specification does not provide a detailed description of its structure and working principle. Muffler 13 can interfere with the sound waves generated by the outlet end of the exhaust pipe 4, reducing the noise generated by the exhaust pipe 4 during the exhaust process, thereby creating a quieter production environment.
[0049] Other features, working principles and beneficial effects of this embodiment are consistent with those of Example 2.
[0050] In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0051] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description, and it is not necessary and impossible to provide an exhaustive list of all implementation methods. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.
Claims
1. A food powder mixing and drying machine, comprising a frame (1), a stirring barrel (2) provided with a feeding port, and a first stirring component, wherein the stirring barrel (2) is arranged on the frame (1), the first stirring component is connected to the frame (1), and at least part of the structure of the first stirring component is located in the inner cavity of the stirring barrel (2), characterized in that: It also includes an air intake pipe (3) and an air exhaust pipe (4), wherein the air outlet end of the air intake pipe (3) and the air intake end of the air exhaust pipe (4) are respectively connected to the inner cavity of the mixing barrel (2), and an air heating component (5) is provided in the inner cavity of the air intake pipe (3).
2. The food powder mixing and drying integrated machine according to claim 1, characterized in that: An induced draft fan (14) is provided on the exhaust duct (4).
3. The food powder mixing and drying integrated machine according to claim 1, characterized in that: A surface cooling and dehumidifying component (6) is also provided in the inner cavity of the air intake pipe (3), and the air heating component (5) is located between the surface cooling and dehumidifying component (6) and the air intake end of the air intake pipe (3).
4. The food powder mixing and drying integrated machine according to claim 3, characterized in that: A rotary dehumidification component (7) is further provided in the inner cavity of the air inlet pipe (3), at least two surface cooling dehumidification components (6) are provided, and the rotary dehumidification component (7) is located between at least two of the surface cooling dehumidification components (6).
5. The food powder mixing and drying integrated machine according to claim 1, characterized in that: A primary filter structure (8), a medium filter structure (9) and a high-efficiency filter structure (10) are provided in the inner cavity of the air intake pipe (3); the primary filter structure (8), the medium filter structure (9) and the high-efficiency filter structure (10) are arranged in sequence along the gas delivery direction of the air intake pipe (3).
6. The food powder mixing and drying integrated machine according to claim 1, characterized in that: The mixing drum (11) is provided with a first opening (1101) and a second opening (1102), wherein the first opening (1101) is communicated with the second opening (1102) through the inner cavity of the mixing drum (11); a filter cloth (12) is provided in the inner cavity of the mixing drum (11), and the first opening (1101) and the second opening (1102) are separated by the filter cloth (12); the exhaust pipe (4) comprises a first pipe (401) and a second pipe (402), wherein the air inlet end of the first pipe (401) is communicated with the mixing drum (2), and the air outlet end of the first pipe (401) is communicated with the first opening (1101); and the air inlet end of the second pipe (402) is communicated with the second opening (1102).
7. The food powder mixing and drying integrated machine according to claim 1, characterized in that: The outlet end of the exhaust pipe (4) is connected to a muffler (13).
8. The food powder mixing and drying integrated machine according to any one of claims 1 to 7, characterized in that: The first stirring assembly comprises a first motor (15) and a bottom stirring paddle (16), wherein the first motor (15) is connected to the frame (1), an output shaft of the first motor (15) is vertically arranged, and the bottom stirring paddle (16) is located at the bottom of the inner cavity of the stirring barrel (2) and is connected to the output shaft of the first motor (15).
9. The food powder mixing and drying integrated machine according to claim 8, characterized in that: The invention also includes a plurality of second stirring components, which are distributed along the circumference of the stirring barrel (2) and are all connected to the frame (1). The second stirring components each include a second motor (22) and a side stirring paddle (17). The second motor (22) is connected to the frame (1), and the output shaft of the second motor (22) is arranged horizontally. The side stirring paddle (17) is located in the inner cavity of the stirring barrel (2) and above the bottom stirring paddle (16), and the side stirring paddle (17) is connected to the output shaft of the second motor (22).
10. The food powder mixing and drying integrated machine according to claim 8, characterized in that: The mixing barrel (2) is provided with a discharge port (201) at the bottom, and a mounting tube (18) is connected to the discharge port (201). A pushing assembly (19) is provided in the inner cavity of the mounting tube (18). The power output end of the pushing assembly (19) is connected to a sealing plug (20). The sealing plug (20) is pushed by the pushing assembly (19) to open or close the discharge port (201). A discharge pipe section (21) is connected to the bottom of the mounting tube (18). The discharge port (201) is communicated with the inner cavity of the discharge pipe section (21) through the inner cavity of the mounting tube (18). When the discharge port (201) is open, the inlet end of the discharge pipe section (21) is located between the discharge port (201) and the sealing plug (20).