Food manufacturing dryer with circulating convection mechanism

Abstract

The utility model discloses a food manufacturing dryer with a circulating convection mechanism, which relates to the technical field of food processing equipment and comprises a dryer shell and an opening and closing door rotationally mounted at the front end of the dryer shell. A placing frame is arranged in the drying machine shell, an electric heater is arranged at the rear end in the drying machine shell, a circulating convection mechanism is arranged in the drying machine shell, and a humidity sensor is arranged at the rear end in the drying machine shell. The draught fan at the upper end of the drying machine shell pushes air downwards along the main air channel, the main air channel blows hot air to the upper end of the drying machine shell, part of air is pushed downwards along the auxiliary air channels on the two sides of the main air channel, and the draught fan at the bottom blows out air on the side face and the bottom of the drying machine shell along the air channels. Driving force for air to circularly flow up and down in the drying box body is formed, it is ensured that food at all positions can make full contact with hot air, the product quality stability is optimized, the energy utilization efficiency is improved, and it is ensured that all parts of the food are evenly heated.

Description

TECHNICAL FIELD

[0001] The utility model relates to food processing equipment technical field, concretely is a food manufacturing drying machine with circulating convection mechanism. BACKGROUND

[0002] In the food manufacturing industry, drying process is an important link to ensure food quality and prolong shelf life. For the production of tablet candies, health food tablets, powders and beverages, the quality of the products is directly affected by the drying process. However, the existing food manufacturing drying machine has many shortcomings.

[0003] Most traditional drying machines use simple hot air direct blowing method, which lacks effective circulating convection mechanism. This leads to uneven distribution of hot air in the drying box. The area near the air inlet has higher temperature, and the food is easily over-dried, causing surface cracking, nutrient loss and other problems. The area far from the air inlet has slow drying speed due to insufficient heat exchange, and the food drying degree is insufficient, which cannot meet the expected water content standard. This uneven drying effect not only affects the taste and quality consistency of the product, but also may cause some products to become substandard due to unqualified drying, increasing production cost.

[0004] For example, a food drying device with publication number CN212393765U, the food drying machine body is internally provided with a food drying inner cavity, the food drying inner cavity is internally provided with an auxiliary shaft on one side, and the food drying inner cavity is internally provided with a shaft penetratingly connected with a servo motor on the other side, the shaft of the servo motor and the auxiliary shaft are connected with a main shaft through a shaft coupling, the main shaft is externally connected with a food fixing block, and the food fixing block is provided with a plurality of food fixing blocks. The food drying device has the defects of hot air circulation and convection design of the drying machine, which causes the hot air to flow disorderly, the material to dry unevenly, and the product taste, pass rate and stability to be affected. However, it still has other problems. The air duct of the traditional drying machine is usually fixed, which cannot realize full-range and uniform blowing of the food, and the different parts of the food have different contact degrees with the hot air, so that the evaporation speed of the water in each part of the food is different. When drying blocky food, the evaporation of water on the surface and inside of the block is quite different, which easily causes the situation of dry outside and wet inside, seriously affecting the product quality. The fixed air duct makes it difficult for the hot air to penetrate the material layer, and the water in the deep layer of the material is difficult to evaporate quickly, greatly prolonging the drying time and reducing the production efficiency. UTILITY MODEL CONTENTS

[0005] The utility model discloses a food manufacturing drying machine with circulating convection mechanism, and solves the problems of the design defects of hot air circulating convection of the drying machine, the disorderly flow of hot air, the uneven drying of materials, the influence on the taste, the qualified rate and the stability of products, the incomplete contact of hot air with materials, the difficulty in penetrating thick material layer, the prolongation of drying time, the increase of energy consumption and the damage to material quality.

[0006] To realize above-mentioned purpose, the utility model provides the following technical scheme: a food manufacturing drying machine with circulating convection mechanism, including drying machine shell and the switch door of drying machine shell front end rotation installation, the control center is fixedly installed to the switch door front end, the drying machine shell inside is provided with the rack, and the drying machine shell inside rear end is provided with electric heater, the drying machine shell inside is provided with circulating convection mechanism, and the drying machine shell inside rear end is provided with humidity transducer, and humidity transducer installs at electric heater right -hand member, the protection shell is fixedly installed to drying machine shell upper end, the motor is fixedly installed to drying machine shell upper end right side, the protection shell inside is provided with reciprocating movement mechanism, and the protection shell inside is provided with semicircle board.

[0007] Further, the circulating convection mechanism includes a fan fixedly installed on the upper end of the protection shell, and the fan, the control center, the electric heater and the humidity transducer are connected with each other, a main air duct is fixedly installed on the front end of the fan, and a secondary air duct is installed through the right end of the main air duct.

[0008] Further, the secondary air duct is evenly distributed with two as the center of symmetry of the drying machine shell, and is fixedly installed on the side of the drying machine shell, and a first air nozzle is installed through the inside of the secondary air duct.

[0009] Further, the first air nozzle is installed on the inside of the drying machine shell, a flow guide plate is fixedly installed on the inside of the drying machine shell, and the flow guide plate is installed between the first air nozzles.

[0010] Further, the reciprocating movement mechanism includes rotary rods rotatably installed on the two sides of the semicircle board, the rotary rods are rotatably installed on the two sides of the protection shell, and the right end of the rotary rod is fixedly installed on the output end of the motor.

[0011] Further, an eccentric disc is fixedly installed on the inside of the rotary rod, and a tripod is fixedly installed on the other end of the eccentric disc, a moving block is slidably connected to the front end of the semicircle board, and the moving block is ball-connected to the tripod on the inside.

[0012] Further, a second air nozzle is arranged on the right end of the moving block, the upper end of the second air nozzle is connected with the main air duct, and the lower end of the second air nozzle corresponds to the rack.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1. The upper end of the dryer housing fan, air along the main air duct downward, the main air duct to the dryer housing upper end blow hot air, a part of the air along the main air duct on both sides of the vice air duct downward, the bottom fan will be the dryer housing side and bottom air along the air duct blow out, so as to form the driving force of the air in the drying box up and down circulation, to ensure that the food in each position can be fully contacted with hot air, optimize product quality stability, improve energy utilization efficiency, ensure that the food is evenly heated, reduce heat loss.

[0015] Further, to ensure that the hot air can evenly cover various food materials, whether it is tablet candy, health food tablets, or powder, beverage raw materials, the food at different positions can be fully contacted with hot air, avoiding the problem of local over-drying or insufficient drying caused by uneven distribution of hot air, greatly improving the uniformity of food drying and ensuring the consistency of product quality.

[0016] Further, uniform hot air circulation makes the food evenly heated during drying, avoiding the destruction of local overheating to the nutritional components of the food, especially for ganoderma spore powder and other nutrient-rich powder food, which can maximize the retention of effective ingredients and improve the nutritional value of the product. For the drying of plant extracts and other raw materials, it can also better retain their biological activity and provide high-quality raw materials for subsequent food processing.

[0017] 2. The motor drives the rotating rod inside the protective shell to rotate, the rotating rod makes the eccentric disc rotate, the eccentric disc drives the triangular frame to rotate, the triangular frame drives the moving block to slide through the semicircular plate, and then the second air nozzle swings. At this time, the fan blows hot air through the main air duct to the inside of the dryer housing, optimizing the uniformity of hot air distribution in the material layer, achieving all-round precise drying, enhancing the drying process adaptability, and meeting the drying needs of different foods.

[0018] Further, the reciprocating movement of the main air duct enables the hot air to blow the food all-round and uniformly, optimizing the distribution of hot air in the material layer, which makes the contact between the food and the hot air more sufficient, speeds up the evaporation speed of water vapor, avoids the situation that the food is dry on the outside and wet on the inside, and ensures the overall drying quality of the food. For tablet candy and health food tablets, it can make the internal moisture evenly lost, improve the appearance quality and taste of the product. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a front view of the utility model;

[0020] Figure 2 It is a half-sectioned perspective view of the dryer housing of the utility model;

[0021] Figure 3 It is the three-dimensional structure schematic view of the guide plate of the utility model;

[0022] Figure 4 It is the three-dimensional structure schematic view of the main air duct of the utility model;

[0023] Figure 5 It is the three-dimensional structure schematic view of the fan of the utility model;

[0024] Figure 6 It is the three-dimensional structure schematic view of the semicircular plate of the utility model;

[0025] Figure 7 It is the three-dimensional structure schematic view of the moving block of the utility model.

[0026] In the drawing: 1, drying machine shell; 2, switch door; 3, control center; 4, placing rack; 5, electric heater; 6, humidity sensor; 7, protective shell; 8, motor; 9, semicircular plate; 10, fan; 11, main air duct; 12, auxiliary air duct; 13, first air nozzle; 14, guide plate; 15, rotating rod; 16, eccentric disc; 17, tripod; 18, moving block; 19, second air nozzle. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0028] Embodiment one: please refer to Figures 1-7The utility model provides following technical scheme: a food manufacturing dryer with circulating convection mechanism, including dryer shell 1 and the switch door 2 of dryer shell 1 front end rotation installation, the control center 3 of switch door 2 front end fixed mounting, the inside of dryer shell 1 is provided with rack 4, and the inside rear end of dryer shell 1 is provided with electric heater 5, the inside of dryer shell 1 is provided with circulating convection mechanism, and the inside rear end of dryer shell 1 is provided with humidity transducer 6, and humidity transducer 6 is installed in electric heater 5 right end, the upper end of dryer shell 1 is fixedly installed with protective housing 7, and the upper end right side of dryer shell 1 is fixedly installed with motor 8, the inside of protective housing 7 is provided with reciprocating movement mechanism, and the inside of protective housing 7 is provided with semicircular plate 9, circulating convection mechanism includes the fan 10 of protective housing 7 upper end fixed installation, and fan 10, control center 3, electric heater 5 and humidity transducer 6 are connected with each other, the front end of fan 10 is fixedly installed with main air duct 11, and the right end of main air duct 11 is installed with auxiliary air duct 12, and auxiliary air duct 12 is evenly distributed two with dryer shell 1 as the symmetric center, and auxiliary air duct 12 is fixedly installed on the side of dryer shell 1, and the inboard of auxiliary air duct 12 is installed with first air nozzle 13, and first air nozzle 13 is installed on the inside side of dryer shell 1, and the inside side of dryer shell 1 is fixedly installed with guide vane 14, and guide vane 14 is installed between first air nozzle 13.

[0029] Food is placed on rack 4, and the fan 10 on the upper end of dryer shell 1 pushes air downward along main air duct 11, and main air duct 11 blows hot air out of the upper end of dryer shell 1, at the same time, a part of air is pushed downward along auxiliary air duct 12 on the two sides of main air duct 11, and bottom fan 10 blows air along the air duct from the side and bottom of dryer shell 1, so that driving force for the upward and downward circulation of air in the drying box is formed, and guide vane 14 arranged in dryer shell 1 plays a key regulating role in the direction of air flow, so that originally concentrated air flow is dispersed and evenly distributed in the drying box, ensuring that food at each position can be in full contact with hot air, and when humidity transducer 6 detects that air humidity is too high, control center 3 will issue an instruction to regulate electric heater 5 and fan 10.

[0030] Reciprocating movement mechanism includes rotation rod 15 rotatably installed on the two sides of semicircular plate 9, and rotation rod 15 is rotatably installed on the two sides of protective housing 7, and the right end of rotation rod 15 is fixedly installed on the output end of motor 8, the inside of rotation rod 15 is fixedly installed with eccentric disc 16, and the other end of eccentric disc 16 is fixedly installed with tripod 17, semicircular plate 9 is slidably connected with moving block 18 at the front end, moving block 18 is ball-connected with tripod 17 at the inside, second air nozzle 19 is arranged at the right end of moving block 18, and the upper end of second air nozzle 19 is connected with main air duct 11, and the lower end of second air nozzle 19 corresponds to rack 4.

[0031] The motor 8 drives the rotating rod 15 in the protection shell 7 to rotate, the rotating rod 15 drives the eccentric disc 16 to rotate, the eccentric disc 16 drives the triangular frame 17 to rotate, the triangular frame 17 drives the moving block 18 to slide through the semicircular plate 9, and then the second air nozzle 19 swings, at this time, the fan 10 passes through the main air duct 11, and the second air nozzle 19 blows out hot air uniformly to the inside of the drying machine shell 1, and the distribution uniformity of the hot air in the material layer is optimized.

[0032] In the description of the utility model, it needs to explain, unless definite provision and limitation, the term "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through intermediate medium. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to specific circumstances.

[0033] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A food manufacturing dryer provided with a circulating convection mechanism, comprising a dryer housing (1) and a switch door (2) rotatably mounted at the front end of the dryer housing (1); characterized in that A control center (3) is fixedly mounted at the front end of the switch door (2), a placing rack (4) is arranged inside the dryer housing (1), an electric heater (5) is arranged at the rear end inside the dryer housing (1), a circulating convection mechanism is arranged inside the dryer housing (1), a humidity sensor (6) is arranged at the rear end inside the dryer housing (1), and the humidity sensor (6) is installed at the right end of the electric heater (5); A protection shell (7) is fixedly mounted at the upper end of the dryer housing (1), an electric motor (8) is fixedly mounted at the right side of the upper end of the dryer housing (1), a reciprocating movement mechanism is arranged inside the protection shell (7), and a semicircular plate (9) is arranged inside the protection shell (7).

2. A food product manufacturing dryer provided with a circulating convection mechanism according to claim 1, characterized in that: The circulating convection mechanism comprises a fan (10) fixedly mounted at the upper end of the protection shell (7), and the fan (10), the control center (3), the electric heater (5) and the humidity sensor (6) are connected with each other, a main air duct (11) is fixedly mounted at the front end of the fan (10), and a sub-air duct (12) is penetratingly mounted at the right end of the main air duct (11).

3. A food product manufacturing dryer provided with a circulating convection mechanism according to claim 2, characterized in that: The sub-air duct (12) is uniformly distributed with two sub-air ducts (12) as the symmetric center of the dryer housing (1), and the sub-air duct (12) is fixedly mounted on the side of the dryer housing (1), and the first air nozzle (13) is penetratingly mounted inside the sub-air duct (12).

4. A food product manufacturing dryer provided with a circulating convection mechanism according to claim 3, characterized in that: The first air nozzle (13) is mounted on the inner side of the dryer housing (1), a guide plate (14) is fixedly mounted on the inner side of the dryer housing (1), and the guide plate (14) is mounted between the first air nozzles (13).

5. A food product manufacturing dryer provided with a circulating convection mechanism according to claim 1, characterized in that: The reciprocating movement mechanism comprises a rotating rod (15) rotatably mounted at both sides of the semicircular plate (9), the rotating rod (15) is rotatably mounted at both sides of the protection shell (7) outside, and the rotating rod (15) is fixedly mounted at the output end of the electric motor (8) at the right end.

6. A food product manufacturing dryer provided with a circulating convection mechanism according to claim 5, characterized in that: An eccentric disc (16) is fixedly mounted at the inner side of the rotating rod (15), a tripod (17) is fixedly mounted at the other end of the eccentric disc (16), a moving block (18) is slidingly connected at the front end of the semicircular plate (9), and the moving block (18) is ball-connected with the tripod (17) inside.

7. A food product manufacturing dryer provided with a circulating convection mechanism according to claim 6, characterized in that: A second air nozzle (19) is arranged at the right end of the moving block (18), the second air nozzle (19) is connected with the main air duct (11) at the upper end, and the second air nozzle (19) is correspondingly connected with the placing rack (4) at the lower end.

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