A structure for a jujube drying chamber

Abstract

This utility model discloses a jujube drying chamber structure, relating to the technical field of jujube processing equipment, and solves the problem of drying effect defects in existing drying chambers when drying jujubes. This utility model features a distributed guide track inside the drying chamber body, with movable jujube transfer brackets mounted on the track. Several air inlets are located at the top of the drying chamber body, each connected to a heating chamber via an air inlet pipe. The heating chamber is connected to the air outlet of a fan. Each air inlet is equipped with a direct-blowing air guide structure. Mounting brackets are installed on the side walls of the drying chamber, with several horizontal air-blowing fans mounted on the brackets. An air outlet is located on the drying chamber body, with an air outlet guide structure at the outlet. The outlet is connected to an air outlet pipe, which is connected to the drying chamber, which is connected to the air inlet of the fan. The direct-blowing air guide structure disperses the hot air, solving the problem of the top jujubes being over-dried by direct airflow.

Description

Technical Field

[0001] This utility model relates to the technical field of jujube processing equipment, and in particular to a jujube drying chamber structure. Background Technology

[0002] As a food and medicinal product, the drying process after washing jujubes directly affects their quality, taste, and shelf life. Currently, most existing drying equipment consists of general-purpose drying chambers, which are ill-suited to the specific drying requirements of jujubes and suffer from numerous technical shortcomings. Chinese utility model patent CN206176905U discloses a drying chamber that uses heat-resistant oil as the heating medium, primarily for drying large objects. Its heating method and air duct design are optimized for large workpieces and cannot meet the refined drying needs of jujubes. Applying this type of general-purpose drying chamber to jujube drying presents the following prominent problems: Direct hot air blowing leads to localized over-drying: The air inlets of existing drying rooms are mostly set directly towards the materials (such as the top air inlet blowing air vertically downwards). Red dates are usually placed on transfer racks of multi-layer trays. The red dates on the top layer are directly exposed to the hot air blowing, which easily leads to rapid moisture loss, skin shrinkage, and poor taste. Meanwhile, the red dates in the middle and lower layers may not be dried sufficiently, resulting in an uneven phenomenon of "dry on top and wet on the bottom". Uneven hot air distribution and drying blind spots: When multiple transfer racks are usually placed in the drying chamber, the gaps between the transfer racks and the corners of the chamber can easily form airflow dead zones. Relying solely on the one-way air supply from the air inlet is insufficient to evenly deliver hot air to each area, resulting in some jujubes being under-dried and affecting the product qualification rate. Low utilization rate of hot air and high energy consumption: Hot air is discharged from the air outlet without fully contacting the jujubes and absorbing moisture, resulting in low heat exchange efficiency. At the same time, the discharged hot air carries a large amount of heat, causing energy waste and increasing drying costs.

[0003] Therefore, there is an urgent need for a drying chamber structure designed specifically for the drying characteristics of jujubes, which can achieve uniform drying, avoid local over-drying, and improve the utilization rate of hot air, in order to solve the problem of the drying effect defects of existing drying chambers when applied to jujube drying scenarios. Utility Model Content

[0004] To address the shortcomings in the aforementioned background technology, this utility model proposes a jujube drying chamber structure, which solves the problem of drying effect defects in existing drying chambers when drying jujubes.

[0005] The technical solution of this utility model is implemented as follows: A jujube drying chamber structure includes a drying chamber body, inside which a distributed guide track is laid, and a movable jujube transfer bracket is provided on the distributed guide track. The distributed guide track is used to guide the movement of the jujube transfer bracket within the drying chamber. The top of the drying chamber body is provided with several air inlets, which are connected to a heating chamber through air inlet pipes. The heating chamber is connected to the air outlet of a fan. Each air inlet is provided with an anti-direct-blow air guide structure. The side wall of the drying chamber is provided with a mounting bracket, on which several horizontal air supply fans are provided. The drying chamber body is provided with an air outlet, which is connected to an air outlet guide structure. The air outlet is connected to an air outlet pipe, which is connected to the drying chamber. The drying chamber is connected to the air inlet of the fan.

[0006] Preferably, the distributed guide rail includes several pairs of parallel support plates arranged on the bottom plate of the drying chamber body, with a gap between each pair of support plates, and a guide tube is provided at the outer edge of each pair of support plates; the drying chamber body is provided with a door, and one end of the guide tube at the door is provided with a flared guide end. The jujube transfer rack includes a frame, on which several layers of trays are provided, and the bottom of the frame is provided with casters.

[0007] Preferably, the air inlet is a rectangular air vent located at the top of the drying chamber body. The anti-direct-blow air guiding structure includes a support rod fixedly installed at the rectangular air vent, the support rod being connected to a guide plate, and a gap being left between the guide plate and the inner wall of the drying chamber body. A four-sided pyramid structure is provided on the upper surface of the guide plate, and the four-sided pyramid structure is configured to cooperate with the air inlet.

[0008] Preferably, the mounting bracket includes a profile frame, which is bolted to the inner wall of the drying chamber body. The profile frame has elongated holes through which it is bolted to a horizontal air supply fan. The heating chamber includes a first compartment, a rectangular compartment containing a first grid frame, and heating wires mounted on the first grid frame.

[0009] Preferably, the drying chamber includes a second compartment, within which a second grid frame is installed. A tray is mounted on the second grid frame, and several desiccant packets are placed on the tray. The air outlet guiding structure includes a rectangular duct fixedly mounted on the air outlet, with several air branch outlets axially formed on the sidewall of the rectangular duct. The rectangular duct and the profile frame are respectively fixed to two opposite sidewalls of the drying chamber body.

[0010] The beneficial effects of this utility model are: Good drying uniformity, avoiding local over-drying: The hot air is dispersed by the anti-direct-blowing air guide structure, which effectively solves the problem of the top layer of red dates being over-dried by direct airflow. At the same time, the horizontal air supply fan promotes the horizontal circulation of hot air, eliminates dead airflow corners in the warehouse, and ensures that the red dates in each layer and area are dried to a consistent degree, thus ensuring uniform product quality. High hot air utilization and low energy consumption: A hot air circulation loop is formed through the fan, heating chamber, and drying chamber. The hot air is reused after dehumidification, reducing heat loss and lowering drying energy consumption. The design of the air outlet guide structure can ensure airflow balance in the chamber and further improve heat exchange efficiency. Easy to operate and with high space utilization: The distributed guide rails, combined with the transfer trays with casters, facilitate the bulk entry and exit of jujubes. They can guide the entry and exit of the transfer trays and limit their position within the drying chamber. At the same time, the orderly arrangement of the rails improves the space utilization within the chamber and enables simultaneous drying of multiple carts, thereby improving production efficiency. Attached Figure Description

[0011] To more clearly illustrate the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the structure of the door end of this utility model; Figure 2 This is a schematic diagram of the external three-dimensional structure of the present invention; Figure 3 This is a schematic diagram of the anti-direct-blow air guide structure and the air outlet guide structure of this utility model; Figure 4 This is a schematic diagram of the horizontal air supply fan installation structure of this utility model; Figure 5 This is a schematic diagram of the jujube transfer bracket structure of this utility model; Figure 6 This is a schematic diagram of the distributed guide track structure of this utility model; Figure 7 This is a schematic diagram of the internal structure of the heating chamber of this utility model; Figure 8 This is a schematic diagram of the internal structure of the drying chamber of this utility model; In the diagram: 1: Drying chamber body, 2: Distributed guide rail, 21: Bearing plate, 22: Guide tube, 23: Flared guide end, 3: Jujube transfer bracket, 31: Frame, 32: Tray, 33: Casters, 4: Air inlet, 41: Support rod, 42: Air guide plate, 43: Four-sided pyramid structure, 5: Air inlet duct, 6: Heating chamber, 61: First chamber, 62: First grid frame, 63: Heating wire, 7: Fan, 8: Mounting bracket, 81: Profile frame, 82: Long strip hole, 9: Horizontal air supply fan, 10: Air outlet, 11: Air outlet guide structure, 111: Rectangular duct, 112: Air distribution port, 12: Air outlet duct, 13: Drying chamber, 131: Second chamber, 132: Second grid frame, 133: Tray, 134: Desiccant pack, 14: Chamber door. Detailed Implementation

[0013] 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.

[0014] like Figure 1 , 2 As shown in Figure 3, in Embodiment 1, a jujube drying chamber structure includes a drying chamber body 1. A distributed guide track 2 is laid on the bottom plate inside the drying chamber body 1. A movable jujube transfer bracket 3 is provided on the distributed guide track 2. The distributed guide track 2 is used to guide the movement of the jujube transfer bracket 3 within the drying chamber body 1.

[0015] Specifically in this embodiment, such as Figure 5 , 6As shown, the jujube transfer rack 3 includes a frame 31 with several layers of trays 32 on it. The bottom of the frame 31 is equipped with casters 33. Jujubes to be dried are evenly laid on the trays 32, allowing for batch loading and unloading from the drying chamber. The casters facilitate the movement of the entire jujube transfer rack. The distributed guide rail 2 includes several pairs of parallel support plates 21 arranged on the bottom plate of the drying chamber body 1. The support plates provide the mounting base, and a gap is left between each pair of support plates 21 to allow for gaps between the jujube transfer racks on them. A guide tube 22 is provided at the outer edge of each pair of support plates 21, limiting the movement of the casters. During movement, the casters travel on the support plates. The drying chamber body 1 is equipped with a door 14. One end of the guide tube 22 located at the door 14 has a flared guide end 23. Each pair of flared guide ends 23 is arranged in a V-shape. The arrangement of the flared guide ends 23 and the guide tube facilitates the quick alignment of the jujube transfer bracket 3 with the corresponding distributed guide rails and its insertion into the drying chamber body 1. In this embodiment, three pairs of distributed guide rails are provided, evenly spaced on the drying chamber floor.

[0016] In addition, the top of the drying chamber body 1 is provided with several air inlets 4. In this embodiment, two air inlets are provided. The air inlets 4 are connected to the heating chamber 6 through air inlet pipes 5. The heating chamber 6 is connected to the air outlet of the fan 7. Each air inlet 4 is provided with a direct-blowing air guide structure. In this embodiment, as shown... Figure 7 As shown, the heating chamber 6 includes a first chamber 61, a first grid frame 62 is provided in the first chamber 61, and an electric heating wire 63 is provided on the first grid frame 62. When the air blown out by the fan passes through the first chamber, it is heated by the electric heating wire 63. The heated hot air is sent into the air inlet 4 through the air inlet pipe 5, and the hot air is dispersed by the anti-direct-blow air guide structure to avoid blowing directly onto the red dates in the top area of ​​the red date transfer rack 3, effectively solving the problem of the top red dates being blown too dry.

[0017] Secondly, such as Figure 4 As shown, a mounting bracket 8 is provided on the side wall of the drying chamber body 1, and several horizontal air supply fans 9 are provided on the mounting bracket 8. When the horizontal air supply fans 9 are working, they can blow the air in the drying chamber body horizontally, promote the horizontal circulation of hot air, eliminate dead air zones in the chamber, ensure that the degree of drying of red dates in each layer and area is consistent, and ensure uniform product quality.

[0018] In addition, the drying chamber body 1 is provided with an air outlet 10, and there are four air outlets in total. An air outlet guide structure 11 is connected to the air outlet 10. The air outlet 10 is connected to the air outlet duct 12. The air outlet duct 12 is connected to the drying chamber 13. The drying chamber 13 is connected to the air inlet of the fan 7 to form a hot air circulation loop.

[0019] Specifically in this embodiment, such as Figure 8As shown, the drying chamber 13 includes a second chamber 131, a second grid frame 132 is provided in the second chamber 131, a tray 133 is provided on the second grid frame 132, and a number of desiccant packets 134 are provided on the tray 133. Furthermore, a drying chamber cover is provided on the second chamber, and the drying chamber cover is connected to the second chamber by bolts, so that the desiccant packets can be taken out through the drying chamber cover for replacement. The desiccant can be a conventional food desiccant, which can absorb the moisture in the air flowing back through the second chamber during the air drying process and accelerate the drying process.

[0020] In Example 2, based on Example 1, the air inlet 4 includes a rectangular air vent located at the top of the drying chamber body 1. The anti-direct-blow air guiding structure includes support rods 41 fixedly installed at the four corners of the rectangular air vent. The support rods 41 are fixedly connected to the four corners of the air guide plate 42, and a gap is left between the air guide plate 42 and the inner wall of the drying chamber body 1. Furthermore, a four-sided pyramid structure 43 is provided on the upper surface of the air guide plate 42, and the four-sided pyramid structure 43 is configured to cooperate with the air inlet 4. In this example, the four-sided pyramid structure is made of stainless steel plate welded together, and the air guide plate is also made of stainless steel plate and welded and fixed to the four-sided pyramid structure. The two ends of the support rod are connected to the top of the drying chamber body and the air guide plate respectively by bolts. The tip of the four-sided pyramid structure corresponds to the center of the rectangular air vent, so that the hot air blown in through the air inlet is diverted by the four-sided pyramid structure and blown outwards from the gap between the air guide plate and the top of the drying chamber body, avoiding direct blowing onto the top jujubes.

[0021] In addition, the mounting bracket 8 includes a profile frame 81, which is bolted to the inner wall of the drying chamber, providing a stable support foundation. The profile frame 81 has elongated holes 82, which are bolted to the transverse air supply fan 9. This bolted connection allows for adjustment of the transverse air supply fan's height based on the actual number of trays 32 on the jujube transfer rack, thus regulating the airflow. A gap is left between the transverse air supply fan 9 and the inner wall of the drying chamber to facilitate airflow. During the jujube drying process, while the fan supplies hot air into the drying chamber, the transverse air supply fan is activated. The fan blows air laterally onto the multiple trays on the jujube transfer rack 3, accelerating the drying speed, promoting lateral hot air circulation, eliminating dead air zones within the chamber, ensuring consistent drying levels in all layers and areas, and guaranteeing uniform product quality.

[0022] In Example 3, based on Example 2, the air outlet guiding structure 11 includes a rectangular duct 111 fixedly installed on the air outlet 10. The bottom of the rectangular duct 111 is closed, and several air distribution ports 112 are opened along the axial direction on the side wall of the rectangular duct 111. The rectangular duct 111 and the profile frame 81 are respectively fixed on two opposite side walls of the drying chamber body 1, thereby facilitating air circulation, dispersing the airflow path, and improving the drying effect. The sum of the areas of the air distribution ports 112 is equal to the sum of the areas of the air inlets 4. Through the area matching design of the air inlets and air distribution ports, the airflow balance in the chamber is ensured, further improving the heat exchange efficiency.

[0023] As a further specific implementation, temperature sensors are installed in both the drying chamber body and the drying chamber. The temperature sensors and heating wires are connected to the controller. The controller can obtain temperature parameters through the temperature sensors and control the heating power of the heating wires to achieve temperature regulation. The controller can be selected from conventional single-chip microcomputer control boards.

[0024] The working process of this embodiment: Loading: Spread the washed red dates evenly on each layer of tray 32 of the red date transfer rack 3, with the thickness controlled at 3~8cm, to avoid the drying effect being affected by excessive thickness; Entering the warehouse: Align the jujube transfer tray with the distributed guide rail 2 through the flared guide end 23 at the warehouse door 14, push it into the drying chamber body 1, arrange it according to the rails, and lock the casters 33; Drying: Close the chamber door 14, start the fan 7 and the heating wire 63, set the heating temperature of the heating wire to 50℃ through the controller, and send the hot air heated by the heating chamber 6 into the air inlet pipe 5, and enter the drying chamber body 1 through the air inlet 4; after the hot air blows on the four-sided pyramid structure 43 of the air guide plate 42, it disperses to all sides and flows to the middle and lower layers along the gap between the air guide plate and the chamber wall. At the same time, the horizontal air supply fan 9 is started to promote the horizontal circulation of hot air in the chamber, evenly penetrate the red dates on each tray, and absorb the moisture of the red dates; Recirculating dehumidification: Hot air carrying moisture returns to the air outlet 10 through the air distribution port 112 of the air outlet guide structure 11, and enters the air outlet duct 12, flowing into the drying chamber 13. The desiccant pack 134 absorbs the moisture in the hot air, and the dehumidified dry hot air re-enters the fan 7 to achieve recycling. Discharge: Depending on the variety and moisture content of the jujubes, after drying for 1-2 hours, turn off the fan 7 and heating wire 63, open the silo door 14, release the universal wheel brake, and pull out the jujube transfer tray to complete the drying operation.

[0025] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A red jujube drying house structure comprising a drying chamber body (1), characterized in that: The drying chamber body (1) is equipped with a distributed guide track (2), on which a movable jujube transfer bracket (3) is mounted. The distributed guide track (2) is used to guide the movement of the jujube transfer bracket (3) within the drying chamber body (1). The top of the drying chamber body (1) is equipped with several air inlets (4), which are connected to the heating chamber (6) via air inlet pipes (5). The heating chamber (6) is connected to the air outlet of the fan (7). A direct-blowing air guide structure is provided at each of the openings (4); an installation bracket (8) is provided on the side wall of the drying chamber body (1), and several horizontal air supply fans (9) are provided on the installation bracket (8); an air outlet (10) is provided on the drying chamber body (1), and an air outlet guide structure (11) is connected to the air outlet (10). The air outlet (10) is connected to the air outlet pipe (12), the air outlet pipe (12) is connected to the drying chamber (13), and the drying chamber (13) is connected to the air inlet of the fan (7).

2. The drying structure of red dates according to claim 1, characterized in that: The distributed guide track (2) includes several pairs of bearing plates (21) arranged in parallel on the bottom plate of the drying chamber body (1). There is a gap between each pair of bearing plates (21), and a guide tube (22) is provided on the outer edge of each pair of bearing plates (21). The drying chamber body (1) is provided with a door (14), and the guide tube (22) is provided with a flared guide end (23) at one end of the door (14).

3. The jujube drying chamber structure according to claim 2, characterized in that: The jujube transfer rack (3) includes a frame (31), on which several layers of trays (32) are provided, and at the bottom of the frame (31) are casters (33).

4. The jujube drying chamber structure according to claim 3, characterized in that: The air inlet (4) includes a rectangular air outlet opened on the top of the drying chamber body (1). The anti-direct blowing air guide structure includes a support rod (41) fixedly installed at the rectangular air outlet. The support rod (41) is connected to the air guide plate (42). There is a gap between the air guide plate (42) and the inner wall of the drying chamber body (1).

5. The jujube drying chamber structure according to claim 4, characterized in that: The upper surface of the air guide plate (42) is provided with a four-sided pyramid structure (43), which is configured in conjunction with the air inlet (4).

6. The jujube drying chamber structure according to any one of claims 1 to 5, characterized in that: The mounting bracket (8) includes a profile frame (81), which is bolted to the inner wall of the drying chamber body (1). The profile frame (81) has an elongated hole (82) and is bolted to the horizontal air supply fan (9) through the elongated hole (82).

7. The jujube drying chamber structure according to claim 6, characterized in that: The heating chamber (6) includes a first chamber (61), a first grid frame (62) is provided in the first chamber (61), and an electric heating wire (63) is provided on the first grid frame (62).

8. The jujube drying chamber structure according to claim 7, characterized in that: The drying chamber (13) includes a second chamber (131), a second grid frame (132) is provided in the second chamber (131), a tray (133) is provided on the second grid frame (132), and a number of desiccant packs (134) are provided on the tray (133).

9. The jujube drying chamber structure according to claim 8, characterized in that: The air outlet guiding structure (11) includes a rectangular pipe (111) fixedly installed on the air outlet (10), and the side wall of the rectangular pipe (111) is provided with several air outlets (112) along the axial direction.

10. The jujube drying chamber structure according to claim 9, characterized in that: The rectangular pipe (111) and the profile frame (81) are respectively fixed on the two opposite side walls of the drying chamber body (1).

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