Rotary drum type hot air baking and frying equipment capable of improving nut heating uniformity

Abstract

The utility model discloses rotary drum type hot air baking and frying equipment capable of improving nut heating uniformity, and relates to the technical field of nut processing, the rotary drum type hot air baking and frying equipment is characterized in that heating assemblies are arranged on the outer walls of two vertical plates, and filtering assemblies are arranged on one sides of the outer walls of the heating assemblies; the heating assembly comprises a heating cylinder, spiral blades are fixedly mounted on the inner wall of the heating cylinder, and a hot air pipe is arranged in the heating cylinder; the filtering assembly comprises a processing bin, a filtering box is arranged in the processing bin, four sliding rods are fixedly installed on the outer wall of the filtering box, springs are arranged on the outer walls of the four sliding rods in a sleeving mode, an inclined material guiding plate and a filtering net plate are fixedly installed on the inner wall of the processing bin, and the filtering assembly conducts two-stage filtering through the filtering box and the filtering net plate. The nuts are classified according to the sizes of the nuts, and the nuts with different sizes can enter the heating cylinder in a more targeted manner and receive proper baking and frying conditions, so that the baking and frying uniformity is further guaranteed, and the processing quality of the nuts is improved.

Description

Technical Field

[0001] This utility model relates to the field of nut processing technology, specifically to a rotary hot air roasting device for improving the uniformity of nut heating. Background Technology

[0002] In the nut processing industry, roasting is a crucial step, significantly enhancing nut flavor and effectively extending shelf life. With increasing market demands for nut quality and the continuous expansion of nut processing scale, developing more efficient roasting equipment that ensures even heating of nuts has become an urgent need for the industry.

[0003] In the prior art, such as the nut drying device described in patent number CN221152888U, a support frame is provided with an isolation shell. A conveying device is provided on the outside of the isolation shell, and an adjustable stirring device is provided on the outside of the rotating rod. The adjustable stirring device is located inside the drying net. In this nut drying device, the adjustable stirring device can be used in conjunction with the drying net to deliver hot air to the inside of the drying net for drying. Therefore, when the nuts are piled up due to gravity, the nuts on the inside contact the outside of the adjustable stirring device, and the nuts on the outside contact the inside of the drying net. During the drying process, they can fully contact the hot air, and the heating is uniform, which will not affect the taste of the nuts.

[0004] While the aforementioned patent can dry nuts, it still has some problems. During the drying process, some nuts may be too large or too small, resulting in some nuts being over-dried while others are not fully dried. This leads to uneven drying and affects the processing quality of the nuts. To address this, this utility model provides a rotary hot air roasting device that improves the uniformity of nut heating. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a rotary hot air roasting device that improves the uniformity of nut heating. This solves the problem that during the drying process, some nuts may be too large or too small, resulting in some nuts being over-dried while others are not fully dried, leading to uneven drying and affecting the processing quality of the nuts.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a rotary hot air roasting device for improving the uniformity of nut heating, comprising a base plate, two vertical plates fixedly installed at the top of the base plate, heating components provided on the outer walls of the two vertical plates, and a filter component provided on one side of the outer wall of the heating components;

[0007] The heating assembly includes a heating cylinder, on the inner wall of which spiral blades are fixedly installed, and a hot air pipe is provided inside the heating cylinder;

[0008] The filtration assembly includes a processing chamber, inside which a filter box is installed. Four sliding rods are fixedly installed on the outer wall of the filter box, and springs are sleeved on the outer walls of the four sliding rods. An inclined guide plate and a filter screen are fixedly installed on the inner wall of the processing chamber.

[0009] Preferably, the heating cylinder is rotatably mounted on the surface of two vertical plates. A motor is fixedly mounted on the outer wall of one of the two vertical plates. The output end of the motor passes through the outer wall of the vertical plate and is fixedly mounted with a gear. An external gear ring is fixedly sleeved on the outer wall of the heating cylinder. The external gear ring meshes with the gear. A rotating rod is fixedly mounted on one side of the outer wall of the gear. A cam is fixedly mounted on one end of the outer wall of the rotating rod.

[0010] Preferably, a fixed cylinder is movably fitted onto the outer wall of the heating cylinder, and a discharge port is provided at the bottom end of the fixed cylinder. Two fixing brackets are fixedly installed on the outer wall of the fixed cylinder, and both fixing brackets are fixedly connected to the base plate. The hot air pipe is fixedly inserted into one side of the outer wall of the fixed cylinder. Ventilation holes are evenly opened through the outer wall of the heating cylinder. A heating device is provided on the inner wall of the heating cylinder, and a set of air outlets is opened on the outer wall of the hot air pipe.

[0011] Preferably, one end of each of the four slide rods slides through the outer wall of the processing chamber, one end of each of the four springs is fixedly connected to the filter box, and the other end of each of the four springs is fixedly connected to the processing chamber. A through groove is provided through the outer wall of the processing chamber, and a movable plate is fixedly installed on the outer wall of the filter box. The movable plate is located on one side of the outer wall of the cam.

[0012] Preferably, a set of first leakage holes is provided through the bottom end of the filter box, the filter screen plate has a certain tilt angle, and a set of second leakage holes is provided through the top end of the filter screen plate, wherein the diameter of the first leakage hole is larger than the diameter of the second leakage hole.

[0013] Preferably, a V-shaped guide plate is fixedly installed at the top of the filter screen, and a feeding pipe is fixedly connected to the outer wall of the processing chamber, with the output end of the feeding pipe located on the inner wall of the heating cylinder.

[0014] Beneficial effects

[0015] This invention provides a rotary hot air roasting device for improving the uniformity of nut heating. Compared with the prior art, it has the following advantages:

[0016] 1. This rotary hot air roasting equipment for improving the uniformity of nut heating works as follows: When roasting nuts, the nuts are first placed in the filter box, then the motor is turned on. The motor drives the rotating rod and cam to rotate. The cam, through the interaction of the pressing moving plate, the sliding rod, and the spring, causes the filter box to sway left and right, thus screening the nuts inside. The first perforation at the bottom of the filter box retains larger nuts. The nuts that have undergone preliminary filtration fall onto the inclined filter screen. Because the filter screen has a certain inclination angle and a second perforation at the top, the nuts are further graded by size, with smaller nut particles falling through the second perforation. The graded nuts then enter the heating cylinder for roasting along the V-shaped guide plate and the feed pipe. The filtration assembly, through the two-stage filtration of the filter box and the filter screen, grades the nuts according to their size. Nuts of different sizes can enter the heating cylinder more effectively and receive suitable roasting conditions, further ensuring the uniformity of roasting and improving the processing quality of the nuts.

[0017] 2. This rotary hot air roasting equipment for improving the uniformity of nut heating operates by starting a motor, whose output drives a gear to rotate. The gear meshes with an external gear ring, causing the heating cylinder to rotate around its own axis. Spiral blades are fixed to the inner wall of the heating cylinder. As the cylinder rotates, the spiral blades push the nuts slowly along the axial direction of the cylinder, while simultaneously causing them to tumble radially. A hot air duct is fixedly inserted into one side of the outer wall of the fixed cylinder. Hot air is blown into the heating cylinder through the duct's outlet. A heating device on the inner wall of the cylinder provides auxiliary heating. The hot air passes through evenly spaced ventilation holes on the outer wall of the cylinder, heating the nuts from all directions and ensuring uniform heating during movement and tumbling. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective;

[0020] Figure 3 This is a schematic cross-sectional view of the overall structure of this utility model;

[0021] Figure 4 This is a cross-sectional schematic diagram of the filter assembly of this utility model;

[0022] Figure 5 This is a cross-sectional schematic diagram of the filter assembly from another perspective of this utility model.

[0023] In the diagram: 1. Base plate; 2. Vertical plate; 3. Heating assembly; 31. Heating cylinder; 32. Spiral blade; 33. Motor; 34. Gear; 35. External gear ring; 36. Rotating rod; 37. Cam; 38. Fixed cylinder; 39. Hot air duct; 310. Fixing frame; 311. Discharge port; 4. Filter assembly; 41. Filter box; 42. Slide rod; 43. Spring; 44. Through groove; 45. Moving plate; 46. Inclined guide plate; 47. Filter screen plate; 48. V-shaped guide plate; 49. Discharge pipe; 410. Processing chamber. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This utility model provides two technical solutions:

[0026] Figures 1-5 The first embodiment is shown: a rotary hot air roasting device for improving the uniformity of nut heating, including a base plate 1, two vertical plates 2 fixedly installed on the top of the base plate 1, a heating component 3 provided on the outer wall of the two vertical plates 2, and a filter component 4 provided on one side of the outer wall of the heating component 3.

[0027] The heating assembly 3 includes a heating cylinder 31. A spiral blade 32 is fixedly installed on the inner wall of the heating cylinder 31. When the heating cylinder 31 rotates, it drives the spiral blade 32 to rotate as well. Due to the special shape of the spiral blade 32, it pushes the nuts to move slowly along the axial direction of the heating cylinder 31, preventing the nuts from piling up inside the cylinder. This ensures that each batch of nuts passes through the heating area sequentially, achieving a continuous and orderly roasting process. On the other hand, the spiral blade 32 causes the nuts to continuously tumble radially, changing their position within the heating cylinder 31. This allows them to come into contact with hot air from all directions, preventing them from being in the same heating area for extended periods, thus significantly improving the uniformity of heating. A hot air duct 39 is installed inside the heating cylinder 31. Figure 3 It can be observed that the hot air pipe 39 does not interfere with other components inside the heating cylinder 31, so the heating cylinder 31 will not touch the hot air pipe 39 when it rotates;

[0028] The filter assembly 4 includes a processing chamber 410, inside which a filter box 41 is provided. Four sliding rods 42 are fixedly installed on the outer wall of the filter box 41, and springs 43 are sleeved on the outer wall of each of the four sliding rods 42. An inclined guide plate 46 and a filter screen plate 47 are fixedly installed on the inner wall of the processing chamber 410. The inclined guide plate 46 can cause the nuts falling into the filter box 41 to fall on the higher end of the filter screen plate 47, thereby enabling the nut particles to be fully filtered.

[0029] The heating cylinder 31 is rotatably mounted on the surface of two vertical plates 2. A motor 33 is fixedly mounted on the outer wall of one of the two vertical plates 2. The output end of the motor 33 passes through the outer wall of the vertical plate 2 and is fixedly mounted with a gear 34. An external gear ring 35 is fixedly sleeved on the outer wall of the heating cylinder 31. The external gear ring 35 meshes with the gear 34. A rotating rod 36 is fixedly mounted on one side of the outer wall of the gear 34. A cam 37 is fixedly mounted on one end of the outer wall of the rotating rod 36. When the motor 33 starts, it can drive the gear 34 to rotate. The gear 34 can then drive the external gear ring 35 and the heating cylinder 31 to rotate. At the same time, when the gear 34 rotates, it can drive the rotating rod 36 and the cam 37 to rotate.

[0030] A fixed cylinder 38 is movably fitted onto the outer wall of the heating cylinder 31. A discharge port 311 is located at the bottom of the fixed cylinder 38. Two fixing brackets 310 are fixedly installed on the outer wall of the fixed cylinder 38, both of which are fixedly connected to the base plate 1. The fixing brackets 310 keep the fixed cylinder 38 fixed, ensuring that the discharge port 311 remains at the bottom, facilitating the falling of nut particles from the inner wall of the heating cylinder 31. A hot air pipe 39 is fixedly inserted into one side of the outer wall of the fixed cylinder 38. Ventilation holes are evenly distributed throughout the outer wall of the heating cylinder 31. During the drying of nuts, some moisture may be generated. This moisture can be discharged from the heating cylinder 31 in a timely manner through the vent holes. The inner wall of the heating cylinder 31 is equipped with a heating device, which is existing technology and can be equipped with electric heating wires, etc., to heat the surface of the heating cylinder 31. Then, in conjunction with the hot air pipe 39, the heating and roasting effect of the nuts is improved. The outer wall of the hot air pipe 39 has a set of air outlets, which connect an external hot air blower to the hot air pipe 39. Hot air can then be blown out through the air outlets to heat the nuts inside the heating cylinder 31.

[0031] Figures 1-5The second embodiment is shown. The main difference from the first embodiment is that one end of each of the four sliding rods 42 slides through the outer wall of the processing chamber 410. The sliding rods 42 can support and limit the filter box 41. One end of each of the four springs 43 is fixedly connected to the filter box 41, and the other end of each spring 43 is fixedly connected to the processing chamber 410. A through groove 44 is opened through the outer wall of the processing chamber 410. A movable plate 45 is fixedly installed on the outer wall of the filter box 41. The movable plate 45 is located on one side of the outer wall of the cam 37. When the cam 37 rotates, one end of it will press the movable plate 45. After being pressed, the movable plate 45 will drive the sliding rods 42 and the filter box 41 to move. When the cam 37 rotates to the other end, the movable plate 45 will drive the filter box 41 to return to its original position under the action of the spring force of the spring 43. As the cam 37 rotates continuously, the filter box 41 can keep shaking, thereby preventing the nuts in the filter box 41 from accumulating and improving the filtration efficiency of the nuts.

[0032] A set of first perforations is provided through the bottom of the filter box 41. The filter screen 47 has a certain tilt angle, allowing nut particles to slide off the surface of the filter screen 47. A set of second perforations is provided through the top of the filter screen 47. The diameter of the first perforation is larger than that of the second perforation. The first perforation can keep some larger nut particles in the filter box 41, while the second perforation filters some smaller nuts, causing them to fall off the surface of the filter screen 47. Through two rounds of filtration and screening, the size of the nuts to be roasted is more uniform, thus improving the roasting effect.

[0033] A V-shaped guide plate 48 is fixedly installed on the top of the filter screen plate 47, and a feeding pipe 49 is fixedly connected to the outer wall of the processing chamber 410, so that the nuts sliding on the surface of the filter screen plate 47 can fall into the feeding pipe 49. The output end of the feeding pipe 49 is set on the inner wall of the heating cylinder 31, and the nuts falling from the feeding pipe 49 can fall into the heating cylinder 31.

[0034] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0035] When the nuts need to be roasted during operation, the nuts are first placed in the filter box 41, and then the motor 33 is turned on. The motor 33 drives the rotating rod 36 and the cam 37 to rotate. The cam 37, through the interaction of the pressing moving plate 45, the sliding rod 42 and the spring 43, causes the filter box 41 to shake left and right, thereby screening the nuts in the filter box 41. The first hole at the bottom of the filter box 41 leaves the larger nuts in the filter box 41. After initial filtration, the nuts fall onto the inclined filter plate 47. Because the filter plate 47 has a certain angle and a second perforation at its top, the nuts are further graded by size, with smaller nuts falling through the second perforation. The graded nuts then enter the heating cylinder 31 for roasting along the V-shaped guide plate 48 and the feed pipe 49. The filter assembly 4, through two stages of filtration (filter box 41 and filter plate 47), grades the nuts according to size, allowing nuts of different sizes to enter the heating cylinder 31 more effectively and receive suitable roasting conditions, further ensuring uniform roasting and improving the processing quality of the nuts. When the motor 33 starts, its output drives the gear 34 to rotate. Because the gear 34 meshes with the external gear ring 35, the heating cylinder 31 rotates around its own axis. The spiral blades 32 are fixed to the inner wall of the heating cylinder 31. As the heating cylinder 31 rotates, the spiral blades 32 push the nuts slowly along the axial direction of the heating cylinder 31, while simultaneously causing the nuts to tumble radially. Hot air pipe 39 is fixedly inserted into one side of the outer wall of fixed cylinder 38. The air outlet on hot air pipe 39 blows hot air into heating cylinder 31. Heating device on inner wall of heating cylinder 31 assists in heating. Hot air is heated from all directions through the air vents evenly opened on outer wall of heating cylinder 31, so that nuts are evenly heated during movement and tumbling. As heating cylinder 31 and spiral blade 32 rotate, nuts in heating cylinder 31 move into fixed cylinder 38 and are then discharged through discharge port 311.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rotary hot air roasting device for improving the uniformity of nut heating, comprising a base plate (1), wherein two vertical plates (2) are fixedly installed on the top of the base plate (1), characterized in that: Heating components (3) are provided on the outer walls of the two vertical plates (2), and a filter component (4) is provided on one side of the outer wall of the heating components (3); The heating assembly (3) includes a heating cylinder (31), a spiral blade (32) is fixedly installed on the inner wall of the heating cylinder (31), and a hot air pipe (39) is provided inside the heating cylinder (31); The filter assembly (4) includes a processing chamber (410), inside which a filter box (41) is provided. Four slide rods (42) are fixedly installed on the outer wall of the filter box (41), and springs (43) are sleeved on the outer walls of the four slide rods (42). An inclined guide plate (46) and a filter screen plate (47) are fixedly installed on the inner wall of the processing chamber (410).

2. The rotary hot air roasting equipment for improving the uniformity of nut heating according to claim 1, characterized in that: The heating cylinder (31) is rotatably mounted on the surface of two vertical plates (2). A motor (33) is fixedly mounted on the outer wall of one of the two vertical plates (2). The output end of the motor (33) passes through the outer wall of the vertical plate (2) and is fixedly mounted with a gear (34). An external gear ring (35) is fixedly sleeved on the outer wall of the heating cylinder (31). The external gear ring (35) meshes with the gear (34). A rotating rod (36) is fixedly mounted on one side of the outer wall of the gear (34). A cam (37) is fixedly mounted on one end of the outer wall of the rotating rod (36).

3. The rotary hot air roasting equipment for improving the uniformity of nut heating according to claim 1, characterized in that: The outer wall of the heating cylinder (31) is movably fitted with a fixed cylinder (38). The bottom end of the fixed cylinder (38) is provided with a discharge port (311). Two fixed brackets (310) are fixedly installed on the outer wall of the fixed cylinder (38). Both fixed brackets (310) are fixedly connected to the base plate (1). The hot air pipe (39) is fixedly inserted into one side of the outer wall of the fixed cylinder (38). The outer wall of the heating cylinder (31) is uniformly provided with ventilation holes. The inner wall of the heating cylinder (31) is provided with a heating device. The outer wall of the hot air pipe (39) is provided with a set of air outlets.

4. The rotary hot air roasting equipment for improving the uniformity of nut heating according to claim 2, characterized in that: One end of each of the four slide rods (42) slides through the outer wall of the processing chamber (410). One end of each of the four springs (43) is fixedly connected to the filter box (41), and the other end of each of the four springs (43) is fixedly connected to the processing chamber (410). A through groove (44) is provided through the outer wall of the processing chamber (410). A movable plate (45) is fixedly installed on the outer wall of the filter box (41). The movable plate (45) is located on one side of the outer wall of the cam (37).

5. The rotary hot air roasting equipment for improving the uniformity of nut heating according to claim 1, characterized in that: The bottom end of the filter box (41) is provided with a first set of leakage holes, the filter screen plate (47) has a certain tilt angle, and the top end of the filter screen plate (47) is provided with a second set of leakage holes, the diameter of the first leakage hole is larger than the diameter of the second leakage hole.

6. The rotary hot air roasting equipment for improving the uniformity of nut heating according to claim 1, characterized in that: A V-shaped guide plate (48) is fixedly installed at the top of the filter screen (47), and a feed pipe (49) is fixedly connected to the outer wall of the processing chamber (410). The output end of the feed pipe (49) is located on the inner wall of the heating cylinder (31).

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