Efficient drying equipment for production of dried beancurd sticks

Abstract

The utility model belongs to the technical field of dried beancurd stick production, and particularly relates to efficient drying equipment for dried beancurd stick production, which comprises a preheating box, drying boxes, a cooling box and a connecting frame, the drying boxes are positioned between the preheating box and the cooling box, and are fixedly connected side by side through the connecting frame; a hanger rail assembly is arranged in the connecting frame, an inner partition door is installed in the connecting frame in a sliding mode through the hanger rail assembly, and door handle assemblies are installed on the side faces of the connecting frame and the inner partition door. The preheating box and the drying box are each internally provided with an auxiliary pushing mechanism. Through the modular design of the preheating box, the drying box and the cooling box, a heat recycling system integrating preheating and drying is formed in cooperation with the extension frame, the backflow frame and the circulation input frame. And meanwhile, through the synergistic effect of the auxiliary pushing mechanism and the inner partition door, automatic pushing is achieved in the material transferring process among the preheating box, the drying box and the cooling box, the drying time is effectively shortened, heat loss is avoided, and energy consumption is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the production technology field of dried beancurd sheet, and particularly relates to a high -efficient drying equipment for dried beancurd sheet production. BACKGROUND

[0002] In the traditional dried beancurd sheet production process, single-box drying equipment is generally used for preheating, drying and cooling treatment in sequence, and this process design is mainly derived from equipment cost control and simple operation consideration. Although the single-box structure reduces the initial investment and maintenance difficulty, it exposes significant efficiency defects in actual application: since the same box needs to complete the process of different temperature and humidity requirements in stages, the environment parameters in the box must be adjusted completely every time the process is converted, which not only causes a large amount of heat energy waste, but also leads to serious waiting time loss between process links. Especially when converting from the preheating stage to the drying stage, the box needs to be quickly adjusted from a low-temperature and high-humidity state to a high-temperature and low-humidity environment, and this sharp change in temperature and humidity not only consumes additional energy and time, but also causes quality problems such as micro-cracks on the surface of the dried beancurd sheet.

[0003] In the subsequent cooling stage, the high-temperature box also needs to be quickly cooled down, which not only prolongs the production cycle, but also makes it difficult to achieve precise temperature control. More importantly, this intermittent production mode requires manual intervention for material transfer during process conversion, which not only increases the labor intensity and pollution risk, but also leads to low equipment utilization, so that the dried beancurd sheet drying process always has problems such as high energy consumption, low efficiency and unstable quality, which seriously restricts the scale development and technological upgrading of the dried beancurd sheet industry. INVENTION CONTENTS

[0004] The utility model aims at providing a high -efficient drying equipment for dried beancurd sheet production, which can solve the above technical problems.

[0005] The technical scheme adopted by the utility model is as follows:

[0006] The utility model provides a high -efficient drying equipment for dried beancurd sheet production, including preheating box, drying box, cooling box and link frame, the drying box is located between preheating box and cooling box, and is connected in parallel through link frame and is fixed, be provided with with the link frame in hanging rail assembly, and be installed with the inside partition door through hanging rail assembly, the side surface of link frame and inside partition door is installed with door handle assembly,

[0007] The side of the drying box is provided with an air heating device, a drying air inlet fan group is installed on the side plate of the drying box and communicates with the inside, the outlet end of the air heating device is connected with a hot gas input frame, and the other end of the hot gas input frame is fixedly connected with the drying air inlet fan group;

[0008] The side plate of the preheating box is provided with a preheating air inlet fan group in communication with the inside, and the side of the preheating box is provided with a circulating input frame, the lower end of which is connected with the preheating air inlet fan group; the upper side of the preheating box and the drying box is provided with a backflow frame, the upper side of the drying box is provided with an outer extension frame, one side of the outer extension frame is fixedly connected with an output fan group, and the output fan group is installed on the top plate of the drying box; one side of the backflow frame is connected with the circulating input frame, and the other side is connected with the outer extension frame.

[0009] The opposite sides of the preheating box and the cooling box are both provided with opposite doors, the top plate of the preheating box is provided with an air outlet fan group, and the preheating box and the drying box are both provided with an auxiliary pushing mechanism.

[0010] The hot air generated by the air heating device is sent into the drying box through the hot air input frame and the drying air inlet fan group to dry the beancurd sticks on the drying rack in the drying box; at the same time, the excess hot air is extracted through the output fan group, sequentially passes through the outer extension frame, the backflow frame and the circulating input frame, and finally is sent into the preheating box by the preheating air inlet fan group to preheat the beancurd sticks on the drying rack in the preheating box. When the drying or preheating process is completed, the driving motor corresponding to the preheating box or the drying box is started through the external control panel, the driving motor drives the main bevel gear to rotate, the meshing transmission drives the auxiliary bevel gear and the lead screw to rotate, the lead screw drives the translation block to slide in the box body, and then the drying rack is moved by the turnover plate; at the same time, the inner dividing door is opened, so that the drying rack is transferred to the drying box or the cooling box. The structure realizes the transfer of the drying rack in a closed state, shortens the drying time, avoids heat loss, and significantly improves the drying efficiency.

[0011] Preferably, the auxiliary pushing mechanism comprises a lead screw, a translation block and a turnover plate, both ends of the lead screw are installed on both sides of the inner bottom surface of the drying box or the preheating box through bearing seats, one end of the lead screw is provided with a main bevel gear and an auxiliary bevel gear, the main bevel gear is meshed with the auxiliary bevel gear, and the auxiliary bevel gear is fixed to the free end of the lead screw.

[0012] The bottom surface of the drying box and the preheating box is provided with a driving motor, the output shaft of the driving motor penetrates the top plate of the box body, and the main bevel gear is fixed to the upper end of the output shaft.

[0013] Preferably, the translation block is arranged on the inner bottom surface of the drying box or the preheating box and is threadedly matched with the lead screw.

[0014] The turnover plate is hinged to the translation block through a rotating shaft, the turnover plate and the corresponding side surface of the translation block are provided with a push plate, and the translation block is provided with an elastic limiting mechanism for limiting the turnover plate.

[0015] Preferably, the elastic limiting mechanism comprises a push spring and a limiting plate, the push spring is installed on the opposite side of the translation block and the turnover plate; a spiral hole is formed on the side surface of the turnover plate, and a positioning screw is threadedly connected in the spiral hole; and the upper end of the limiting plate is sleeved on the positioning screw.

[0016] Preferably, a sliding slot is formed on the side surface of the translation block, and a sliding screw is slidably arranged in the sliding slot, and the sliding screw is threadedly matched with the lower end of the limiting plate.

[0017] Preferably, supporting legs are installed at the bottom corners of the drying box, the preheating box and the cooling box, and inclined buffer plates are arranged at the lower ends of the opposite sides of the preheating box and the cooling box, and the inclined buffer plates are in contact with the ground.

[0018] Beneficial effects are:

[0019] 1. The modular design of the preheating box, the drying box and the cooling box cooperates with the heat energy recovery system of the epitaxial frame, the reflow frame and the circulating input frame, so that the excess heat in the drying box is transported to the preheating box through the output fan group and the preheating air inlet fan group, forming a preheating and drying integrated heat recycling system. This design significantly reduces heat energy loss, while meeting the production needs of industrial continuous drying, effectively shortens the drying time, improves auxiliary production efficiency, and realizes energy consumption reduction.

[0020] 2. The auxiliary pushing mechanism and the inner dividing door cooperate to realize automatic pushing during the material transfer process between the preheating box, the drying box and the cooling box. This mechanism can complete material transfer while maintaining the closed state of the box body, which improves the transfer efficiency and avoids heat loss, further optimizing the overall energy efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is the front view structure schematic diagram of the utility model;

[0022] Figure 2 is another side structure schematic diagram of the utility model;

[0023] Figure 3 is the auxiliary pushing mechanism structure schematic diagram of the utility model Figure 2

[0024] Figure 4 is the auxiliary pushing mechanism structure schematic diagram of the utility model

[0025] In the drawings, the components represented by each reference number are listed as follows:

[0026] ​1, preheating box; 2, drying box; 3, cooling box; 4, air heating device; 5, hot gas input frame; 6, drying air inlet fan group; 7, connection frame; 8, internal partition door; 8.1, hanging rail assembly; 9, door handle assembly; 10, output fan group; 11, extension frame; 12, backflow frame; 13, circulating input frame; 14, preheating air inlet fan group; 15, external exhaust fan group; a, auxiliary push mechanism; 16, lead screw; 17, auxiliary bevel gear; 18, main bevel gear; 19, drive motor; 20, bearing seat; 21, translation block; 22, turnover plate; 23, push-up plate; 24, push-up spring; 25, limit plate; 26, sliding groove; 27, positioning screw; 28, sliding screw. DETAILED DESCRIPTION

[0027] In order to make the purpose and advantages of the utility model more clear and obvious, the following will be specifically described by combining with the embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the utility model, and does not strictly limit the protection scope of the utility model.

[0028] As shown in Figures 1-4 A kind of high-efficiency drying equipment for bean curd stick production, including preheating box 1, drying box 2, cooling box 3 and connection frame 7, drying box 2 is between preheating box 1 and cooling box 3, and is fixedly connected side by side by connection frame 7;Connection frame 7 is provided with hanging rail assembly 8.1 in, and is slidably installed with internal partition door 8 by hanging rail assembly 8.1, hanging rail assembly 8.1 includes slide rail installed on the top surface of connection frame 7, and hanging wheel installed on internal partition door 8 matched with slide rail, door handle assembly 9 is installed on the side surface of connection frame 7 and internal partition door 8, and door handle assembly 9 includes handle rotatably installed on the side surface of internal partition door 8, and stop rod installed on the side surface of connection frame 7 for forming rotation limit to handle;

[0029] Air heating device 4 is correspondingly provided on the side surface of drying box 2, drying air inlet fan group 6 is installed on the side plate of drying box 2 and communicated with the inside, the outlet end of air heating device 4 is connected with hot gas input frame 5, and the other end of hot gas input frame 5 is fixedly connected with drying air inlet fan group 6;

[0030] Preheating air inlet fan group 14 is installed on the side plate of preheating box 1 and communicated with the inside, and circulating input frame 13 is arranged on the side surface of preheating box 1, the lower end of circulating input frame 13 is connected with preheating air inlet fan group 14;The upper side of preheating box 1 and drying box 2 is provided with backflow frame 12, and the upper side of drying box 2 is provided with extension frame 11, one side of extension frame 11 is fixedly connected with output fan group 10, and output fan group 10 is installed on the top plate of drying box 2;One side of backflow frame 12 is connected with circulating input frame 13, and the other side is connected with extension frame 11;

[0031] The opposite sides of the preheating box 1 and the cooling box 3 are respectively provided with a pair of opposite doors, and the top of the preheating box 1 is provided with an exhaust fan group 15.

[0032] As an optional embodiment, the auxiliary pushing mechanism a comprises a screw rod 16, a translation block 21 and a turnover plate 22, the two ends of the screw rod 16 are respectively arranged on the two sides of the bottom surface of the drying box 2 or the preheating box 1 through bearing seats 20, one end of the screw rod 16 is provided with a main bevel gear 18 and a secondary bevel gear 17, the main bevel gear 18 is engaged with the secondary bevel gear 17, and the secondary bevel gear 17 is fixed to the free end of the screw rod 16.

[0033] The bottom surfaces of the drying box 2 and the preheating box 1 are respectively provided with a driving motor 19, the output shaft of the driving motor 19 penetrates the top plate of the box body, the main bevel gear 18 is fixed to the upper end of the output shaft, and the input end of the driving motor 19 is electrically connected with the output end of an external control panel, so that the transmission direction of the driving motor 19 is changed, the screw rod 16 is driven to transmit in the preheating box 1 or the drying box 2, and the protection effect of the driving motor 19 is improved.

[0034] Referring to the accompanying drawings Figure 3 and the accompanying drawings Figure 4 The translation block 21 is arranged on the inner bottom surface of the drying box 2 or the preheating box 1 in a fit manner and is threadedly connected with the screw rod 16, the translation block 21 is slid in parallel in the preheating box 1 or the drying box 2 through the threaded connection between the screw rod 16 and the translation block 21, so that the drying rack is pushed and moved.

[0035] The turnover plate 22 is hingedly connected to the translation block 21 through a rotating shaft, the corresponding side surfaces of the turnover plate 22 and the translation block 21 are provided with a pushing plate 23, and the translation block 21 is provided with an elastic limiting mechanism for limiting the turnover plate 22, the upward turning angle of the turnover plate 22 is limited by the elastic limiting mechanism, and the lower side beam of the drying rack is conveniently clamped and pushed.

[0036] Further, the elastic limiting mechanism comprises a pushing spring 24 and a limiting plate 25, the pushing spring 24 is arranged on the opposite side of the translation block 21 and the turnover plate 22, the side surface of the turnover plate 22 is provided with a spiral hole, a positioning screw rod 27 is threadedly connected in the spiral hole, and the upper end of the limiting plate 25 is sleeved on the positioning screw rod 27, so that the limiting plate 25 is rotationally connected with the turnover plate 22, and the rotating angle of the turnover plate 22 when the pushing spring 24 pushes the turnover plate 22 is conveniently adjusted.

[0037] Further, the side surface of the translation block 21 is provided with a sliding groove 26, a sliding screw rod 28 is slidably arranged in the sliding groove 26, and the sliding screw rod 28 is threadedly connected with the lower end of the limiting plate 25, so that the movement space of the sliding screw rod 28 is limited by the sliding groove 26, and the limiting effect is achieved when the turnover plate 22 is upwardly turned.

[0038] Further, the bottom corners of the drying box 2, the preheating box 1 and the cooling box 3 are provided with supporting legs, and the opposite lower ends of the preheating box 1 and the cooling box 3 are provided with inclined buffer plates which are in contact with the ground, so as to facilitate the movement of the drying rack into the preheating box 1 or out of the cooling box 3.

[0039] With the above structure, the hot air generated by the air heating device 4 is sent into the drying box 2 through the hot air input frame 5 and the drying air fan group 6 to dry the dried bean curd sticks on the drying rack in the drying box 2; at the same time, the excess hot air is extracted by the output fan group 10, and sequentially passes through the extension frame 11, the return flow frame 12 and the circulation input frame 13, and finally is sent into the preheating box 1 by the preheating air fan group 14 to preheat the dried bean curd sticks on the drying rack in the preheating box 1. When the drying or preheating process is completed, the corresponding driving motor 19 of the preheating box 1 or the drying box 2 is started through the external control panel, the driving motor 19 drives the main bevel gear 18 to rotate, the secondary bevel gear 17 and the lead screw 16 are driven to rotate through the meshing transmission, the lead screw 16 drives the translation block 21 to slide in the box body, and then the drying rack is moved by the turning plate 22; at the same time, the inner dividing door 8 is opened, so that the drying rack is transferred into the drying box 2 or the cooling box 3. The structure realizes the transfer of the drying rack in a closed state, shortens the drying time, avoids heat loss, and significantly improves the drying efficiency.

[0040] The above is only the preferred embodiment of the present application, and it should be pointed out that for those skilled in the art, without departing from the principle of the present application, a number of improvements and refinements can be made, which should also be considered as the protection scope of the present application. The standard parts used in the present application can be purchased from the market, and can be customized according to the description and drawings. The specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art. The mechanical parts and equipment adopt the conventional type in the prior art. The control mode is automatically controlled by the controller. The control circuit of the controller can be realized by simple programming of those skilled in the art, which belongs to the common knowledge in the art. The present application is mainly used to protect the mechanical device, so the control mode and circuit connection will not be explained in detail. The structures, devices and operation methods not specifically described and explained in the present application are implemented according to the conventional means in the art, unless otherwise specified and limited.

Claims

1. A high-efficiency drying equipment for the production of dried bean curd sticks, characterized in that: It includes a preheating box (1), a drying box (2), a cooling box (3), and a connecting frame (7). The drying box (2) is located between the preheating box (1) and the cooling box (3) and is fixedly connected side by side through the connecting frame (7). A hanging rail assembly (8.1) is provided inside the connecting frame (7), and an inner partition door (8) is slidably installed through the hanging rail assembly (8.1). Door handle assemblies (9) are installed on the sides of the connecting frame (7) and the inner partition door (8). An air heating device (4) is provided on the side of the drying box (2). A drying air intake fan group (6) communicating with the interior is installed on the side plate of the drying box (2). A hot air input frame (5) is connected to the outlet end of the air heating device (4). The other end of the hot air input frame (5) is fixedly connected to the drying air intake fan group (6). A preheating air intake fan assembly (14) communicating with the interior is installed on the side plate of the preheating box (1). A circulation input frame (13) is provided on the side of the preheating box (1). The lower end of the circulation input frame (13) is connected to the preheating air intake fan assembly (14). A return frame (12) is provided on the upper side between the preheating box (1) and the drying box (2). An extension frame (11) is provided above the drying box (2). One side of the extension frame (11) is fixedly connected to the output fan assembly (10). The output fan assembly (10) is installed on the top plate of the drying box (2). One side of the return frame (12) is connected to the circulation input frame (13), and the other side is connected to the extension frame (11). Both the preheating box (1) and the cooling box (3) are equipped with double doors on opposite sides. An external exhaust fan assembly (15) is installed on the top plate of the preheating box (1). Both the preheating box (1) and the drying box (2) are equipped with an auxiliary pushing mechanism (a).

2. The high-efficiency drying equipment for dried bean curd production according to claim 1, characterized in that: The auxiliary pushing mechanism (a) includes a lead screw (16), a translation block (21), and a flip plate (22). The two ends of the lead screw (16) are installed on both sides of the bottom surface of the drying box (2) or the preheating box (1) through bearing seats (20). One end of the lead screw (16) is provided with a main bevel gear (18) and a secondary bevel gear (17). The main bevel gear (18) meshes with the secondary bevel gear (17), and the secondary bevel gear (17) is fixed to the free end of the lead screw (16). Both the drying box (2) and the preheating box (1) are equipped with drive motors (19) on their bottom surfaces. The output shaft of the drive motor (19) passes through the top plate of the box body, and the main bevel gear (18) is fixed to the upper end of the output shaft.

3. The high-efficiency drying equipment for dried bean curd production according to claim 2, characterized in that: The translation block (21) is fitted to the inner bottom surface of the drying box (2) or the preheating box (1) and is threadedly engaged with the lead screw (16); The flip plate (22) is hinged to the translation block (21) via a rotating shaft. The flip plate (22) and the translation block (21) are provided with a push plate (23) on their corresponding sides. The translation block (21) is provided with an elastic limiting mechanism for limiting the flip plate (22).

4. The high-efficiency drying equipment for dried bean curd production according to claim 3, characterized in that: The elastic limiting mechanism includes a push spring (24) and a limiting plate (25). The push spring (24) is installed on the opposite side of the translation block (21) and the flip plate (22). The flip plate (22) has a spiral hole on its side, and a positioning screw (27) is threaded into the spiral hole. The upper end of the limiting plate (25) is sleeved on the positioning screw (27).

5. The high-efficiency drying equipment for dried bean curd production according to claim 4, characterized in that: The translation block (21) has a sliding groove (26) on its side, and a sliding screw (28) is slidably disposed in the sliding groove (26). The sliding screw (28) is threadedly engaged with the lower end of the limiting plate (25).

6. The high-efficiency drying equipment for dried bean curd production according to claim 5, characterized in that: The drying box (2), preheating box (1) and cooling box (3) are all equipped with support legs at the four corners of their bottom surfaces. The lower ends of the opposite sides of the preheating box (1) and cooling box (3) are provided with inclined buffer plates, which are in contact with the ground.

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