A drying device suitable for a continuous conveying system and a drying system thereof

Abstract

This utility model relates to the field of drying equipment technology, specifically disclosing a drying device and system suitable for a continuous conveying system. The drying device includes a housing with passageways on both sides of the inner chamber. A high-pressure air outlet is located at the passageway, and its output high-pressure airflow selectively isolates the passageway. The drying section includes several drying modules disposed within the inner chamber. This utility model achieves selective isolation by blocking heat without blocking the material through the high-pressure air outlet, thus achieving heat preservation while avoiding friction with the outer surface of the material and preventing damage. Simultaneously, the high-pressure air outlet at the material receiving passageway can preferentially reduce residual liquid on the material surface through blowing, thereby assisting in drying. The high-pressure air outlet at the material output passageway can cool the outer surface of the dried material through blowing, facilitating the rapid participation of the material in subsequent processing.

Description

Technical Field

[0001] This utility model relates to the field of drying equipment technology, specifically to a drying device and drying system suitable for continuous transmission systems. Background Technology

[0002] In continuous production processes, the processed products may involve processes such as washing and soaking. After the relevant processing steps, it is usually necessary to remove the liquid residue on the product surface, that is, to dry the product.

[0003] Some commercially available dryers have a conveyor system located in the middle of the conveyor mechanism, allowing the conveyor to pass through the dryer and thus dry the material as it passes through the interior. These dryers typically use a baffle curtain structure to isolate the interior and exterior spaces of the machine casing and prevent heat loss. However, this also means that during continuous processing, the material being dried inevitably comes into contact with the baffle curtain as it enters and exits the casing. This contact can cause friction and scratches on the surface of the material, potentially damaging high-value products. Furthermore, the opening created by the baffle curtain during its raising and lowering allows air to pass through, and this opening remains until the curtain returns to its original position. During this time, the hot air used in the dryer can easily escape through this opening, resulting in high energy consumption. Utility Model Content

[0004] This invention provides a drying device suitable for continuous conveying systems, which can reduce heat loss within the drying device while minimizing direct contact with the product, thus avoiding damage such as scratches to the product during the drying process.

[0005] This utility model is achieved through the following technical solution:

[0006] A drying apparatus suitable for a continuous conveying system includes: a housing containing an inner chamber for accommodating various components, with passage openings on both sides of the inner chamber for the conveying system and materials thereon to enter and exit the inner chamber; a high-pressure air outlet located at the passage openings, the high-pressure airflow output by the high-pressure air outlet selectively isolating the passage openings; and a drying section containing several drying modules disposed within the inner chamber.

[0007] As a further improvement of this utility model, a closed plate is connected between two adjacent drying modules and between the drying module and the inner side wall of the box, so that the closed plate, the drying module, the high-pressure airflow and the inner bottom surface of the box form a drying chamber. The heat output port of the drying module is placed in the drying chamber. The drying chamber is used to accommodate the transmission system and the material on it that enter the inner chamber.

[0008] As a further improvement of this utility model, the drying section includes a plurality of drying modules disposed in the upper space of the inner cavity, wherein the heat output port of the drying module in the upper space is a hot air output port and the hot air output port is located at the bottom of the drying module in the upper space.

[0009] As a further improvement of this utility model, the hot air outlet includes several sets of evenly arranged air delivery holes.

[0010] As a further improvement of this utility model, an insulating bottom surface is formed at the bottom of the closed plate, and a first gap is formed between the insulating bottom surface and the hot air outlet, so that the insulating bottom surface can prevent the drying hot air output from the hot air outlet from moving upward and dissipating.

[0011] As a further improvement of this utility model, it also includes a heat circulation kit, which includes an air outlet, a pumping unit, and a heating unit, wherein the air outlet, the pumping unit, the heating unit, and the drying module are connected in sequence by connecting pipelines; wherein the air outlet is disposed in the drying chamber.

[0012] As a further improvement of this utility model, the air outlet includes an air outlet and a protective cover plate covering the air outlet. An air inlet gap is provided between the protective cover plate and the air outlet to guide the airflow to bypass the protective cover plate and enter the air outlet through the air inlet gap.

[0013] As a further improvement of this utility model, the drying section also includes a plurality of drying modules disposed in the lower space of the inner cavity.

[0014] As a further improvement of this utility model, the feature is that a second gap is provided between the closed plate and the heat output port of the drying module in the space below the inner cavity, so as to form a working area between the closed plate and the heat output port, and an air outlet is provided in the working area.

[0015] Secondly, this utility model provides a drying system, including a conveyor belt and any of the above-mentioned drying devices suitable for continuous conveying systems. The conveyor belt enters from the through-hole on one side of the housing and exits from the through-hole on the other side, so that the material on the conveyor belt is placed in the drying chamber.

[0016] The beneficial effects of this utility model include:

[0017] (1) In this utility model, a high-pressure air outlet is used to isolate the passage. Specifically, the high-pressure air outlet can output high-pressure gas to form an "air curtain". This "air curtain" can block the heat in the inner chamber, that is, prevent the heat from escaping the inner chamber quickly without obstruction. At the same time, when the material on the transmission system passes through the "air curtain", it will not obstruct the material or cause friction or even scratches on the outer surface of the material. Therefore, the material can pass smoothly through the "air curtain" into the inner chamber and carry out subsequent drying work. In this way, the high-pressure air outlet completes the blocking function. It selectively isolates heat without hindering the material; when the "air curtain" formed by the high-pressure air outlet comes into contact with the material, it will create a high-pressure blow on the surface of the material. Therefore, the high-pressure air outlet installed at the material receiving port can reduce the residual liquid on the material surface by blowing before the drying section, thus achieving the effect of auxiliary drying. Since the high-pressure air outlet usually only outputs high-pressure airflow at room temperature, the high-pressure air outlet installed at the material output port can cool the outer surface of the dried material by blowing, so that the material can quickly participate in subsequent processing.

[0018] (2) In the preferred structure, the drying module, the enclosed plate, the high-pressure airflow and the inner bottom surface are combined to form a drying chamber in the inner cavity. The heat output port of the drying module is placed in the drying chamber, and the material is also placed in the drying chamber when it moves in the inner cavity. This allows the heat output port to quickly come into contact with the material and closely surround the material to be dried, thereby achieving rapid and effective drying of the material surface. On the one hand, this structure reduces the overall energy consumption of the drying device, and on the other hand, this structure increases the drying efficiency, making the drying device suitable for drying continuously moving materials.

[0019] (3) In the preferred structure, the heat output in the drying module is a hot air outlet, that is, the surface of the material is dried by blowing hot air. On the one hand, for the material in the continuous transmission system, its residence time in the inner chamber is short and it may keep moving in the inner chamber. The selected hot air drying method directly transfers heat to the surface of the material through forced convection, which accelerates the evaporation of liquid and greatly shortens the drying time. On the other hand, under the hot air drying method, the heat will move with the airflow, and the "air curtain" can effectively isolate the gas flow, and thus achieve a better blocking effect on the heat dissipation.

[0020] (4) In the preferred structure, the hot air outlet contains several sets of evenly arranged air delivery holes, which makes the hot air output more uniform, and thus can achieve a more uniform and efficient blowing effect on the outer surface of the material, further improving the drying effect and speed of the drying device on the material.

[0021] (5) In the preferred structure, the drying device also includes a heat circulation kit, which includes an air outlet, a pumping section and a heating section, wherein the air outlet, the pumping section, the heating section and the drying module are connected in sequence by connecting pipelines; wherein the air outlet is located in the drying chamber; as the drying work proceeds, the temperature of the hot air will decrease and the overall humidity in the drying chamber will increase, so the heat circulation kit can extract the gas in the drying chamber for reheating to meet the long-term drying requirements. At the same time, the extraction of gas can also drive the flow of gas in the drying chamber, reduce the local overheating of the material surface or the generation of drying dead corners, and ensure that the material is heated evenly. Attached Figure Description

[0022] The accompanying drawings are provided below to illustrate the preferred embodiments of this utility model, in order to aid in understanding the purpose and advantages of this utility model, wherein:

[0023] Figure 1 This is a schematic diagram of the drying device.

[0024] Figure 2 This is a schematic diagram of the structure between the drying module and the enclosed plate in the space above the inner chamber;

[0025] Figure 3 This is a schematic diagram of the air outlet structure.

[0026] To demonstrate the coordination between the conveyor system and the drying unit, Figure 1 The figure shows a conveyor belt, but the components of the drying device in this utility model do not include the conveyor belt, and this figure does not affect the scope of protection of the claims. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0028] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the construction shown in the accompanying drawings. The terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0029] Example 1:

[0030] This embodiment provides a drying device suitable for a continuous conveying system, such as... Figure 1 As shown, it mainly includes a housing 1, a high-pressure air outlet 2, and a drying section 3. The housing 1 contains an inner chamber 101 that houses the various components. Access ports 102 are provided on both sides of the inner chamber 101 for the conveying system and materials to enter and exit the inner chamber 101. The high-pressure air outlet 2 is located at the access ports 102. This high-pressure air outlet 2 can output a high-pressure airflow. For example, the high-pressure air outlet 2 includes a high-pressure pump, which pressurizes the gas and transmits it as high-pressure gas. This high-pressure gas is delivered to the high-pressure air outlet device 201 of the high-pressure air outlet 2 and then ejected, forming a high-pressure airflow. This high-pressure airflow can selectively isolate the access ports 102, preventing heat from escaping from the inner chamber 101 to the outside of the housing 1, but not obstructing the movement of materials. The high-pressure airflow can flow horizontally or vertically. In this embodiment, a vertical flow is used. Under this direction, the high-pressure airflow can impact and blow the material placed on the conveying system from top to bottom. Therefore, it can block heat dissipation while allowing the airflow to make large-area contact with the outer surface of the material, and can more effectively form a preliminary blowing and drying effect on the liquid remaining on the surface of the material. The drying section 3 includes several sets of drying modules 301 disposed in the inner chamber 101. In this embodiment, six sets of drying modules 301 are provided for example. Each drying module 301 is provided with a heat output port, which can be any device capable of outputting drying heat, such as a drying hot air output device, an infrared drying device, or a microwave drying device.

[0031] Preferably, such as Figure 1As shown, a closed plate 302 is connected between two adjacent drying modules 301 and between the drying module 301 and the inner wall of the box 1, so that the closed plate 302, the drying module 301, the high-pressure airflow and the inner bottom surface of the box 1 enclose the drying chamber 103. The heat output port of the drying module 301 is placed in the drying chamber 103. The drying chamber 103 is used to accommodate the transmission system and the material on it that enter the inner chamber 101, thereby ensuring that the heat output from the heat output port is difficult to rise and dissipate and quickly comes into contact with the material, and closely surrounds the material to be dried, thus enabling rapid and effective drying of the material surface.

[0032] Preferably, two sets of oppositely arranged high-pressure air outlet devices 201 are provided on the same through-port 102. In this embodiment, the flow direction of the high-pressure airflow is vertical and direct, therefore... Figure 1 As shown, a set of high-pressure air outlet devices 201 are respectively installed at the top and bottom of the outlet 102, and the two outlets emit air in opposite directions to form an air curtain. Figure 1 For example, when there is a large gap between the transmission device and the inner bottom surface of the inner chamber 101, if the high-pressure air outlet device 201 is only installed at the top of the outlet 102, the high-pressure airflow is easily blocked by the transmission surface of the transmission system, and there is an exposed gap below the transmission system, making it difficult to achieve the sealing of the drying chamber 103. However, when a high-pressure air outlet device 201 with a relative air outlet is installed, the high-pressure airflow ejected by the high-pressure air outlet device 201 at the bottom can compensate for the exposed gap, thus ensuring the selective isolation of the high-pressure air outlet 2 from the outlet 102. In this embodiment, high-pressure gas is transported to the high-pressure air outlet device 201 and ejected by a high-pressure pump. Under this structure, the temperature of the airflow output from the high-pressure air outlet device 201 is lower than the temperature in the drying chamber 103. The high-pressure air outlet device 201, located at the outlet of the output material, can also cool the outer surface of the dried material by blowing, so that the material can quickly participate in subsequent processing.

[0033] Preferably, in this embodiment, the drying section 3 includes, for example, six drying modules 301 disposed in the upper space of the inner chamber 101, and the heat output port of the drying module 301 is a hot air output port 301-1, which is located at the bottom of the drying module 301. In this preferred structure, the drying module 301 adopts a device for outputting hot air for drying. High-temperature gas is supplied to the drying chamber 103 through the hot air output port 301-1. During this process, when the hot air comes into contact with the material, the forced convection generated by the collision between the airflow and the material can directly transfer heat to the surface of the material, accelerating liquid evaporation and greatly shortening the drying time. At the same time, in the hot air drying mode, the heat mainly moves with the airflow, and the "air curtain" generated by the high-pressure airflow can effectively isolate the gas flow, thereby achieving a better effect in preventing heat loss.

[0034] Preferably, such as Figure 1 As shown, the hot air outlet 301-1 includes several sets of evenly arranged air conveying holes 301-1a. In this embodiment, one drying module 301 exemplarily includes 22 sets of air conveying holes 301-1a, which are evenly arranged in two rows. This structure enables more uniform hot air output, achieving a more uniform and efficient blowing effect on the outer surface of the material, further improving the drying effect and speed of the drying device, making the drying device suitable for drying continuously moving materials with short residence times.

[0035] Preferably, such as Figures 1-2 As shown, the bottom of the enclosed plate 302 has an insulating bottom surface, and a first gap L1 is formed between the insulating bottom surface and the hot air outlet 301-1. This gap allows the insulating bottom surface to be close to the hot air outlet 301-1, thus preventing the upward escape of hot air. Specifically, due to the low density and upward movement of high-temperature gases, the hot air output from the drying module 301 tends to escape upwards after being ejected. Without the obstruction of the enclosed plate 302, the hot air, lacking driving force, will accumulate at the top of the inner chamber 101 without contacting the material, resulting in a waste of the heat carried by the hot air. The enclosed plate 302, positioned at the first gap L1, forces the hot air to rise only a limited height and still accumulate near the material, preventing the waste of the heat carried by the hot air.

[0036] Preferably, the drying device further includes a heat circulation kit 4, such as... Figure 1 As shown, the heat circulation kit 4 includes an air outlet 401, a pumping unit 402, and a heating unit 403. These components are connected sequentially via pipelines to the drying module 301. The air outlet 401 is located within the drying chamber 103, allowing the pumping unit 402 to draw gas from the drying chamber 103 to the heating unit 403 for reheating during operation, before returning it to the drying module 301 for reuse. As the drying process progresses, the temperature of the hot air decreases while the overall humidity within the drying chamber 103 increases. Therefore, the heat circulation kit 4 is necessary to circulate the gas within the drying chamber 103 and reheat it to meet the demands of prolonged drying. Furthermore, the gas extraction also promotes airflow within the drying chamber 103, reducing localized overheating of the material surface or creating drying dead zones, ensuring uniform heating of the material.

[0037] Preferably, such as Figure 1 and Figure 3As shown, the air outlet 401 includes an air outlet 401-1 and a protective cover 401-2 covering the air outlet 401-1. An air inlet gap is provided between the protective cover 401-2 and the air outlet 401-1 to guide the airflow around the protective cover 401-2 and then into the air outlet 401-1 through the air inlet gap. In this structure, the protective cover 401-2 provides preliminary protection for the air outlet 401-1, preventing impurities blown down from the material from being directly sucked into the air outlet 401-1 and ultimately damaging other components such as the pumping unit 402 and the heating unit 403.

[0038] Preferably, quick-release viewing windows are provided on the top and sides of the housing 1. This structure allows staff to easily observe the operation of components such as the drying module 301 from the outside, and to quickly carry out repairs and replacements when relevant components are damaged.

[0039] Example 2:

[0040] The difference between this embodiment and Embodiment 1 is that the drying section 3 in the drying device further includes several sets of drying modules 301 disposed in the lower space of the inner chamber 101. In this embodiment, six sets of drying modules 301 are provided. The drying modules 301 located in the lower space cooperate with the drying modules 301 located in the upper space to dry the material from different directions, further reducing the generation of drying dead corners, especially for materials with multi-sided drying requirements. This improved structure can further ensure that all surfaces of the material can be dried. For example, in the field of battery material recycling, battery cells are transported by mesh belt conveyors, etc. After cleaning, they need to be dried on both the top and bottom surfaces. In the drying device structure of this embodiment, the drying modules 301 located in the upper space and the drying modules 301 located in the lower space can respectively blow and dry the top and bottom surfaces of the battery cells on the conveyor belt to achieve the drying effect of all surfaces of the battery cells. Taking the example where both output heat in the form of hot air, the drying module 301 can blow and dry the material from two different and opposite directions, which can promote the hot air to generate convection and collision and create vortices near the material. This makes the collision airflow form a multi-directional flow, increasing the contact area between the hot air and the material. In particular, it can significantly improve the drying efficiency of porous or uneven surface materials, while avoiding uneven drying of the material surface due to low flow velocity in some areas. Especially when facing continuously transported materials, the hot air in the turbulent state in the drying chamber 103 can further ensure effective contact with all positions on the outer surface of the material and achieve the drying effect.

[0041] After the drying module 301 is added in the lower space, since there are closed plates 302 connecting the two adjacent drying modules 301 and the inner side wall of the box 1, the drying chamber 103 is adjusted to be formed by the drying module 301 and the closed plate 302 in the upper space, the drying module 301 and the closed plate 302 in the lower space, and the high-pressure airflow.

[0042] Preferably, such as Figure 1 As shown, a second gap L2 is provided between the closed plate 302 and the heat output port of the drying module 301 in the lower space of the inner chamber 101. A working area is formed between the closed plate 302 and the heat output port at this gap, which can accommodate the arrangement of the air outlet 401-1. When the drying module 301 located in both the upper and lower spaces outputs heat in the form of hot air, a heat circulation kit 4 containing the air outlet 401-1 can be provided in the drying device to assist in the circulation of airflow. In this embodiment, the air outlet 401-1 is located in the working area. Due to the physical characteristic that hot air tends to move upwards, it easily clumps together in the upper space of the drying chamber 103. When the air outlet 401-1 draws air in the lower space of the inner chamber 101, it can generally drive the hot air in the drying chamber 103 to circulate from top to bottom. During this process, the hot air can be re-driven into hot air and passes over the material, allowing the remaining heat to be used for drying the material.

[0043] Example 3:

[0044] This embodiment provides a drying system, which includes at least a conveyor belt a and the drying device from Embodiment 2. Figure 1 As shown, in this embodiment, the conveyor belt a enters the drying chamber 103 through the through-hole 102 on one side of the housing 1, and exits the drying chamber 103 through the through-hole 102 on the other side of the housing 1, so that the material transported on the conveyor belt a will be placed in the drying chamber 103 after entering the housing 1 and can be dried.

[0045] Preferably, the conveyor belt a can be a mesh belt. This structure has multiple holes on the belt surface while ensuring the conveying function. When used in conjunction with the drying device in Embodiment 2, the heat output by the drying module 301 located in the lower space can be quickly applied to the conveyed material through the holes, thereby achieving rapid drying of the entire surface of the material.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A drying apparatus suitable for a continuous conveying system, characterized in that, Includes: The housing (1) contains an inner chamber (101) for accommodating various components. The inner chamber (101) has passage openings (102) on both sides for the transmission system and its materials to enter and exit the inner chamber (101). A high-pressure air outlet (2) is provided at the passage (102), and the high-pressure airflow output by the high-pressure air outlet (2) can selectively isolate the passage (102); The drying section (3) includes several sets of drying modules (301) disposed in the inner chamber (101).

2. A drying apparatus suitable for a continuous conveying system according to claim 1, characterized in that, A closed plate (302) is connected between two adjacent drying modules (301) and between the drying module (301) and the inner wall of the box (1), so that the closed plate (302), the drying module (301), the high-pressure airflow and the inner bottom surface of the box (1) together form a drying chamber (103). The heat output port of the drying module (301) is placed in the drying chamber (103). The drying chamber (103) is used to accommodate the transmission system and the material on it that enter the inner chamber (101).

3. A drying apparatus suitable for a continuous conveying system according to claim 2, characterized in that, The drying section (3) includes several drying modules (301) disposed in the upper space of the inner chamber (101). The heat output port of the drying module (301) in the upper space is a hot air output port (301-1), and the hot air output port (301-1) is located at the bottom of the drying module (301) in the upper space.

4. A drying apparatus suitable for a continuous conveying system according to claim 3, characterized in that, The hot air outlet (301-1) includes several sets of evenly arranged air delivery holes (301-1a).

5. A drying apparatus suitable for a continuous conveying system according to claim 3, characterized in that, The bottom of the closed plate (302) has an insulating bottom surface, and a first gap (L1) is formed between the insulating bottom surface and the hot air outlet (301-1) so that the insulating bottom surface can prevent the drying hot air output from the hot air outlet (301-1) from moving upward and dissipating.

6. A drying apparatus suitable for a continuous conveying system according to claim 3, characterized in that, It also includes a heat circulation kit (4), which includes an air outlet (401), a pumping unit (402) and a heating unit (403), wherein the air outlet (401), the pumping unit (402), the heating unit (403) and the drying module (301) are connected in sequence by connecting pipelines; wherein the air outlet (401) is disposed in the drying chamber (103).

7. A drying apparatus suitable for a continuous conveying system according to claim 6, characterized in that, The air outlet (401) includes an air outlet (401-1) and a protective cover (401-2) covering the air outlet (401-1), with an air inlet gap between the protective cover (401-2) and the air outlet (401-1).

8. A drying apparatus suitable for a continuous conveying system according to any one of claims 2 to 7, characterized in that, The drying section (3) also includes several drying modules (301) disposed in the space below the inner chamber (101).

9. A drying apparatus suitable for a continuous conveying system according to claim 8, characterized in that, In the space below the inner chamber (101), a second gap (L2) is provided between the closed plate (302) and the heat output port of the drying module (301) to form a working area between the closed plate (302) and the heat output port, and an air outlet (401-1) is provided in the working area.

10. A drying system, characterized in that, A drying apparatus comprising a conveyor belt (a) and any one of claims 2 to 9, suitable for a continuous conveying system, wherein the conveyor belt (a) enters from the port (102) on one side of the housing (1) and exits from the port (102) on the other side, such that the material on the conveyor belt (a) is placed in the drying chamber (103).

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