A stir-frying equipment

Abstract

This invention relates to a flour frying device, comprising a frame and, arranged from top to bottom, an upper heating pipe component, a middle heating pipe component, and a lower heating pipe component on the frame. The upper heating pipe component is provided with a feed pipe, and the lower heating pipe component is provided with a discharge pipe. The left end of the middle heating pipe component is connected to the upper heating pipe component, and the right end is connected to the lower heating pipe component. Each of the upper, middle, and lower heating pipe components includes an inner pipe and an outer pipe. The interior of the inner pipe is a channel for the flow of flour, and a feeding device and a mixing assembly are provided within the channel. The feeding device includes a rotating shaft and multiple scrapers mounted on the rotating shaft. The mixing assembly includes a clearance groove and a disturbance frame. A heating structure is provided on the exterior of the outer pipe, and a heat transfer jacket is formed between the inner and outer pipes to transfer heat from the heating structure to the inner pipe. An exhaust device is also provided to allow hot air in the lower heating pipe component to flow to the upper and middle heating pipe components.

Description

Technical Field

[0001] This invention belongs to the technical field of stir-frying equipment, specifically relating to a stir-frying equipment. Background Technology

[0002] Powdered ingredients, such as flour (including wheat flour, corn starch, potato starch, etc.) and feed powder, are generally cooked by heating. Utility model patent CN220000713U discloses a flour roasting machine, which includes a heating oil tank and multiple heating tanks. Each heating tank has a flour inlet pipe and a flour outlet pipe. The heating tanks are arranged vertically and connected end-to-end. Each heating tank has an internal cavity equipped with an auger driven by a drive motor. The outer walls of each heating tank are covered with a hollow coating layer, which is connected to the heating oil tank via an oil pump, an oil inlet pipe, and an oil return pipe. During the frying process, the moisture in the flour is fried out. The above-mentioned flour frying machine has the following problems during the frying process: 1. The powder is driven forward by the auger, which makes it easy for the powder to clump together. Large particles are not fried properly and need to be further cooked in a maturation tank later. In addition, the auger drives the powder, which makes the air circulation poor and the heat cannot be reused. 2. The powder is heated by oil. The uneven temperature of the oil causes the powder to be heated unevenly and is prone to local gelatinization. Summary of the Invention

[0003] The purpose of this invention is to provide a stir-frying device to solve the technical problems of easy clumping and uneven heating during the stir-frying process of powder.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] A stir-frying device includes a frame and three heating elements arranged from top to bottom on the frame: an upper heating element, a middle heating element, and a lower heating element. The upper heating element has an inlet pipe, and the lower heating element has an outlet pipe. The left end of the middle heating element is connected to the upper heating element, and the right end is connected to the lower heating element, so that the powder flows sequentially within the upper, middle, and lower heating elements. Each of the upper, middle, and lower heating elements includes an inner tube and an outer tube. The interior of the inner tube serves as a channel for the powder to flow through. The device includes a feeding device that moves the powder and a mixing component that disperses the powder. The feeding device includes a rotating shaft and multiple scrapers mounted on the rotating shaft. The mixing component includes a clearance groove mounted on the inner tube wall and a disturbance frame that moves left and right within the clearance groove to avoid the scrapers. A heating structure is provided on the outside of the outer tube, and a heat transfer jacket is provided between the inner and outer tubes to transfer heat from the heating structure to the inner tube. A ventilation device is also provided to allow hot air in the lower heating tube component to flow to the upper heating tube component and the middle heating tube component for heat reuse.

[0006] Furthermore, the inner tube is connected to a drive assembly for rotating the inner tube, so that the inner tube and the rotating shaft form a bidirectional rotating structure.

[0007] Furthermore, the drive assembly includes a first inner tube gear sleeved on and fixed to the inner tube, a second inner tube gear meshing with the first inner tube gear, and an inner tube motor that drives the second inner tube gear to rotate; the outer diameter of the first inner tube gear is larger than the outer diameter of the second inner tube gear to facilitate adjustment of the rotational speed of the inner tube; the inner tube extends out of one end of the outer tube, the first inner tube gear is sleeved on the end, and an inner tube support plate is provided on the right side of the frame to support the inner tube.

[0008] Furthermore, the rotating shaft is connected to a rotating shaft motor via a rotating shaft gear and a rotating shaft chain. The rotating shaft gear rotates coaxially with the rotating shaft. The rotating shaft motor is equipped with a motor gear that cooperates with the rotating shaft chain. The frame is equipped with a rotating shaft support plate to support the rotating shaft.

[0009] Furthermore, the left and right adjacent scrapers intersect on the inner tube wall with their orthographic projections. Each scraper includes a plate body and two connecting rods that connect the plate body to the rotating shaft. The connecting rods extend radially along the rotating shaft, and the direction of the plate body's extension intersects the axial direction of the rotating shaft at an incline, so that all the powder can move smoothly from left to right.

[0010] Furthermore, the disturbance frame includes a base, an upright fixed on the base, multiple support rods fixed on the upright, the clearance groove extends axially along the inner tube, and the edge of the clearance groove is provided with a limiting edge to prevent the base from disengaging from the clearance groove. The base and the clearance groove cooperate to move left and right.

[0011] Furthermore, the support rod and the upright are inclined and intersecting, the base is hemispherical, the clearance groove is adapted to the shape of the base, the scraper scrapes the support rod, the support rod rotates and drives the disturbance frame to move left and right, so that the powder continuously generates irregular disturbance, avoiding dead corners in the flow of the powder, thereby realizing the crushing and cooking of the powder.

[0012] Furthermore, the exhaust device is located on the left side of the frame. The exhaust device includes an exhaust duct extending vertically and communicating with the inner tube of the upper heating pipe component, an exhaust fan located above the exhaust duct, and a dust collector connected to the exhaust fan. The upper part of the dust collector is connected to the exhaust fan, and the lower part of the dust collector is connected to the inner tube of the middle heating pipe component through an auger to transport the powder to the inner tube of the middle heating pipe component.

[0013] Furthermore, the frame encloses the heating structures of the upper heating pipe component, the middle heating pipe component, and the lower heating pipe component. An exhaust fan is provided on the upper part of the frame, which sends the heat from the heating structure inside the frame into the feed pipe of the upper heating pipe component to assist in preheating the powder.

[0014] Furthermore, the heating structure is an electromagnetic coil wound around the outer tube.

[0015] The beneficial effects of this invention are:

[0016] The stir-frying equipment of the present invention is equipped with a disturbance frame to irregularly disturb the powder during the stir-frying process, prevent dead corners, break the powder, facilitate the removal of moisture from the powder, and result in smaller powder particles.

[0017] The stir-frying equipment of the present invention has an inner tube and a rotating shaft forming a double rotation structure, which can adjust the rotation speed of the inner tube and the rotation speed of the rotating shaft according to the composition and moisture content of the powder, and can also adjust the discharge speed.

[0018] In the stir-frying equipment of the present invention, the exhaust device draws the hot air in the inner tube of the lower heating pipe component back into the inner tubes of the middle heating pipe component and the upper heating pipe component. The residual heat of the inner tube of the lower heating pipe component helps to heat the inner tubes of the heating pipe component and the upper heating pipe component.

[0019] The stir-frying equipment of the present invention uses an exhaust fan to send the heat from the heating structure inside the frame into the feed pipe of the upper heating tube component to assist in preheating the powder and save energy used for heating. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the stir-frying equipment in Example 1;

[0021] Figure 2 This is a partial structural diagram of the internal structure of the stir-frying equipment in Example 1;

[0022] Figure 3 This is a partial structural diagram of the left side of the upper heating tube component in Example 1;

[0023] Figure 4 This is a partial structural diagram of the left side of the heating tube component in Example 1;

[0024] Figure 5 This is a partial structural diagram of the left side of the lower heating tube component in Example 1;

[0025] Figure 6 This is a partial structural diagram of the right side of the upper heating tube component in Example 1;

[0026] Figure 7 This is a partial structural diagram of the right side of the heating tube component in Example 1;

[0027] Figure 8 This is a partial structural diagram of the right side of the lower heating tube component in Example 1;

[0028] Figure 9 This is a partial structural diagram of the left side of the stir-frying equipment in Example 1;

[0029] Figure 10 Schematic diagram of the internal structure of the inner tube in Example 1;

[0030] Figure 11 Schematic diagram of the disturbance frame structure in Example 1;

[0031] Figure 12 Example 1: Schematic diagram of the inner and outer tube assembly structure. Detailed Implementation

[0032] The present invention will be further described below with reference to the embodiments and accompanying drawings. Example

[0033] The stir-frying equipment of this embodiment includes a frame 100 and an upper heating pipe component, a middle heating pipe component, and a lower heating pipe component arranged from top to bottom on the frame. The upper heating pipe component is provided with a feed pipe 110, and the lower heating pipe component is provided with a discharge pipe 120. The left end of the middle heating pipe component is connected to the upper heating pipe component, and the right end is connected to the lower heating pipe component, so that the powder flows sequentially in the upper heating pipe component, the middle heating pipe component, and the lower heating pipe component.

[0034] The upper heating tube assembly, the middle heating tube assembly, and the lower heating tube assembly all include an inner tube 500 and an outer tube 600, with the outer tube sleeved on the outside of the inner tube. The inner tube extends from the left end of the frame to the right end of the frame, and each inner tube is fitted with two sections of outer tube. The outer tube is fixed to the frame 100 by two sections of outer tube supports 610.

[0035] The inner tube 500 serves as a channel for the flow of powder. Inside the channel are a feeding device 700 that moves the powder and a mixing assembly 800 that disperses the powder. The feeding device 700 includes a rotating shaft 710 and multiple scrapers 720 mounted on the rotating shaft. The mixing assembly 800 includes a clearance groove 810 on the inner tube wall and a disturbance frame 820 that moves left and right within the clearance groove to avoid the scrapers 720.

[0036] The inner tube 500 is connected to a drive assembly 200 for rotating the inner tube, so that the inner tube and the rotating shaft form a bidirectional rotation structure. The drive assembly 200 includes a first inner tube gear 210 sleeved on and fixed to the inner tube, a second inner tube gear 220 meshing with the first inner tube gear, and an inner tube motor 230 for driving the second inner tube gear to rotate. The outer diameter of the first inner tube gear is larger than the outer diameter of the second inner tube gear to facilitate adjustment of the rotational speed of the inner tube. The inner tube 500 extends out of the outer tube end 510, and the first inner tube gear is sleeved on the end. A rotating shaft support plate 130 for supporting the rotating shaft is provided at the right end of the frame 100. An inner tube support plate 140 for supporting the inner tube is provided on the frame 100, and the rotating shaft of the inner tube motor 230 passes through the inner tube support plate 140 and is inserted and fixed to the second inner tube gear 220. The inner tube support plate 140 has a right arc-shaped groove 141 on its upper part. A right support ring 142 for supporting the rotation of the inner tube is provided in the right arc-shaped groove 141. Right support ears for fixing to the rotating shaft support plate are provided on both sides of the right support ring. A right groove is provided on the rotating shaft support plate 140 to cooperate with the right support ears. The right support ears are located in the right groove and are tightly connected to the rotating shaft support plate.

[0037] The rotating shafts 710 of the upper heating tube assembly, the middle heating tube assembly, and the lower heating tube assembly all pass through the inner tube. A rotating shaft motor 713 is connected to the rotating shaft 710 via a rotating shaft gear 711 and a rotating shaft chain 712. The rotating shaft motor 713 is located on the left side of the frame 100. The rotating shaft gear 711 rotates coaxially with the rotating shaft, and the rotating shaft motor 713 is equipped with motor gears that mesh with the rotating shaft chain 712. The inner tube motor 230 is also fixed to the rotating shaft support plate.

[0038] The feed and discharge pipes for the powder are equipped with ramps. A right flange 520 and a right sealing plate 530 for sealing the inner pipe are located at the right end of the inner pipe 500; the right flange and the right sealing plate are parallel. The right flange is fixed to the inner pipe support plate 140, and the right sealing plate is fixed to the right flange. The right sealing plate has a right arc-shaped opening 531 adapted to the ramp and a right rotating shaft hole for the rotating shaft to pass through. A right protective pipe 540 is provided between the right sealing plate and the end of the rotating shaft.

[0039] An inner tube support frame 160 is provided at the left end of the inner tube. A left arc-shaped groove 161 is provided on the upper part of the inner tube support frame. A left support ring 162 for supporting the rotation of the inner tube is provided within the left arc-shaped groove. Left support ears for fixing to the inner tube support frame are provided on both sides of the left support ring. A left groove is provided on the inner tube support frame to mate with the left support ears. The left support ears are located within the left groove and are securely connected to the inner tube support frame. A left flange 550 and a left sealing plate 560 for sealing the inner tube are provided at the left end of the inner tube. The left flange and the left sealing plate are parallel. The left flange is fixed to the inner tube support frame, and the left sealing plate is fixed to the left flange. The left sealing plate 560 has a left arc-shaped opening 561 adapted to the slope and a left rotation shaft hole for the rotation shaft to pass through. A left protective pipe 562 is provided between the left sealing plate and the end of the rotation shaft.

[0040] The left and right adjacent scrapers 720 intersect on the inner tube wall with their orthographic projections. Each scraper 720 includes a plate body 721 and two connecting rods 722 connecting the plate body to the rotating shaft. The connecting rods extend radially along the rotating shaft, and the direction of the plate body's extension is inclined to intersect the axial direction of the rotating shaft. The scrapers are arranged in three rows, forming a fan blade structure to ensure that all powder moves smoothly from left to right. The scraper body cooperates with the inner tube wall to scrape the powder, preventing the powder from sticking to the inner tube wall and avoiding uneven heating that could lead to gelatinization.

[0041] The disturbance frame 820 includes a base 821, an upright 822 fixed on the base, and multiple support rods 823 fixed on the upright. The clearance groove 810 extends axially along the inner tube, and a limiting edge is provided on the edge of the clearance groove 810 to prevent the base from disengaging from the clearance groove. The base and the clearance groove cooperate to move left and right. The limiting edge is flush with the inner wall of the inner tube to prevent scraping the scraper. The support rods and the upright are inclined and intersecting. The base is hemispherical, and the shape of the clearance groove is adapted to the base. The scraper scrapes the support rods, causing the support rods to rotate and drive the disturbance frame to move left and right, so that the powder continuously generates irregular disturbance, avoiding dead corners in the flow of the powder, thereby realizing the crushing and cooking of the powder.

[0042] A ventilation system 300 is also provided to allow hot air from the lower heating element to flow into the upper and middle heating elements, thus reusing the heat. The ventilation system is located on the left side of the frame and includes a vertically extending ventilation duct 310 that communicates with the inner tube of the upper heating element, a fan 320 located above the ventilation duct, and a dust collector 330 connected to the fan. The upper part of the dust collector is connected to the fan, and the lower part of the dust collector is connected to the inner tube of the middle heating element via an auger 331 to convey powder to the inner tube of the middle heating element. The ventilation duct is connected to the inner tube.

[0043] A heating structure is provided on the outside of the outer tube 600, and a heat transfer jacket is formed between the inner tube and the outer tube to transfer heat from the heating structure to the inner tube. The heating structure is an electromagnetic coil 400 wound on the outer tube.

[0044] The frame is a box structure that encloses the heating structures of the upper heating pipe component, the middle heating pipe component, and the lower heating pipe component. Multiple exhaust fans 900 are installed on the upper part of the frame. The exhaust fans send the heat from the heating structure inside the frame into the feed pipe of the upper heating pipe component through a flexible pipe (not shown in the figure) to assist in preheating the powder.

[0045] In this embodiment of the flour roasting equipment, the initial moisture content of the flour is 14%, and the inner tube temperature of the upper heating element is 150°C. Moisture is released during roasting and is exhausted by an exhaust fan. The flour then falls into the inner tube of the middle heating element, where heating is achieved through energy-saving methods. During the heating of the flour in the middle heating element, moisture is drawn from its inner tube to the inner tube of the upper heating element by an exhaust fan and then exhausted. The flour then enters the inner tube of the lower heating element, where the air temperature is 120°C. The hot air from the lower heating element's inner tube is then drawn into the inner tube of the middle heating element by the exhaust fan, utilizing the residual heat of the lower heating element's inner tube to power the middle heating element, thus saving energy and reducing emissions. During the heating of the flour in the lower heating element's inner tube, the moisture content of the flour is 3-4%, and the outlet pipe temperature is 105-110°C. After being discharged, the flour enters an insulated container, where the 105-110℃ temperature allows it to fully cook.

Claims

1. A stir-frying equipment for rice noodles, characterized in that, The device includes a frame and, arranged from top to bottom, upper, middle, and lower heating pipe components mounted on the frame. The upper heating pipe component has a feed pipe, and the lower heating pipe component has a discharge pipe. The left end of the middle heating pipe component connects to the upper heating pipe component, and the right end connects to the lower heating pipe component, allowing powder to flow sequentially within each component. Each of the upper, middle, and lower heating pipe components includes an inner pipe and an outer pipe. The inner pipe serves as a channel for powder flow, containing a feeding device to move the powder and a mixing component to disperse the powder. The feeding device includes a rotating shaft and multiple scrapers mounted on the shaft. The mixing component includes a clearance groove on the inner pipe wall and a disturbance frame that moves left and right within the clearance groove to avoid obstacles. The scraper; the disturbance frame includes a base, an upright fixed on the base, and multiple support rods fixed on the upright. The clearance groove extends axially along the inner tube, and a limiting edge is provided on the edge of the clearance groove to prevent the base from disengaging from the clearance groove. The base and the clearance groove cooperate to move left and right. The support rods and the upright are inclined and intersecting. The base is hemispherical, and the shape of the clearance groove matches the shape of the base. The scraper scrapes the support rods, causing the support rods to rotate and drive the disturbance frame to move left and right, so that the powder continuously generates irregular disturbances, avoiding dead corners in the flow of the powder, thereby realizing the crushing and cooking of the powder. A heating structure is provided on the outside of the outer tube, and a heat transfer jacket is provided between the inner tube and the outer tube to transfer the heat of the heating structure to the inner tube. A ventilation device is also provided to allow the hot air in the lower heating tube component to flow to the upper heating tube component and the middle heating tube component, so as to reuse the heat.

2. The stir-frying equipment according to claim 1, characterized in that, The inner tube is connected to a drive assembly for rotating the inner tube, so that the inner tube and the rotating shaft form a bidirectional rotating structure.

3. The stir-frying equipment according to claim 2, characterized in that, The drive assembly includes a first inner tube gear sleeved on and fixed to the inner tube, a second inner tube gear meshing with the first inner tube gear, and an inner tube motor that drives the second inner tube gear to rotate; the outer diameter of the first inner tube gear is larger than the outer diameter of the second inner tube gear to facilitate adjustment of the rotational speed of the inner tube; the inner tube extends out of one end of the outer tube, the first inner tube gear is sleeved on the end, and an inner tube support plate is provided on the right side of the frame to support the inner tube.

4. The stir-frying equipment according to claim 1 or 2, characterized in that, The rotating shaft is connected to a rotating shaft motor via a rotating shaft gear and a rotating shaft chain. The rotating shaft gear rotates coaxially with the rotating shaft. The rotating shaft motor is equipped with a motor gear that cooperates with the rotating shaft chain. The frame is equipped with a rotating shaft support plate to support the rotating shaft.

5. The stir-frying equipment according to claim 1, characterized in that, The left and right adjacent scrapers intersect on the inner tube wall with their orthographic projections. Each scraper includes a plate body and two connecting rods that connect the plate body to the rotating shaft. The connecting rods extend radially along the rotating shaft, and the direction of the plate body's extension intersects the axial direction of the rotating shaft at an angle, so that all the powder can move smoothly from left to right.

6. The stir-frying equipment according to claim 1, characterized in that, The exhaust device is located on the left side of the frame. The exhaust device includes an exhaust duct extending vertically and communicating with the inner tube of the upper heating pipe component, an exhaust fan located above the exhaust duct, and a dust collector connected to the exhaust fan. The upper part of the dust collector is connected to the exhaust fan, and the lower part of the dust collector is connected to the inner tube of the middle heating pipe component through an auger to transport the powder to the inner tube of the middle heating pipe component.

7. The stir-frying equipment according to claim 1, characterized in that, The frame encloses the heating structure of the upper heating pipe component, the middle heating pipe component, and the lower heating pipe component. An exhaust fan is installed on the upper part of the frame, which sends the heat from the heating structure inside the frame into the feed pipe of the upper heating pipe component to assist in preheating the powder.

8. The stir-frying equipment according to claim 1, characterized in that, The heating structure is an electromagnetic coil wound around the outer tube.

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