Material dewatering device and material dewatering method

Abstract

The application belongs to the technical field of material drying, and discloses a material dehydration device and a material dehydration method, wherein the material dehydration device comprises two air boxes, the side walls of the two air boxes are respectively provided with air vents, one of the two air boxes is provided with an air inlet, and the other air box is provided with an air outlet; at least two material boxes are provided with feeding ports and discharging ports, the side walls of the material boxes are provided with air vents, and the interiors of the at least two material boxes are communicated with each other through the air vents on the side walls; the material boxes are all arranged between the two air boxes, and the interior of the air box and the interior of the material box adjacent to the air box are communicated through the air vents on the side walls of the material box and the air vents on the side walls of the air box. The application can realize the secondary use of hot air in the static and dynamic drying processes, and prevent the waste caused by the direct discharge of high-temperature and low-humidity hot air.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of material dehydration, and particularly relates to a material dehydration device and a material dehydration method. BACKGROUND

[0002] In the current technical field of material dehydration, similar material dehydration devices and material dehydration methods adopt a combination of a wind supply box, a material box and an air exhaust box. Hot air is output from the wind supply box, enters and penetrates the material box through the air inlets on the side walls of the wind supply box and the air inlets on the side walls of the material box, then enters the air exhaust box through the air inlets on the side walls of the material box and the air inlets on the side walls of the air exhaust box, and finally is exhausted from the air exhaust vent of the air exhaust box. The hot air penetrates the material while penetrating the material box, and carries away the moisture of the material. Although this material dehydration device and method can realize the drying of the material, the hot air can only be used once. As the drying process continues, the moisture of the material in the material box decreases, the temperature of the hot air penetrating the material rises, and the humidity of the hot air penetrating the material decreases. The higher the temperature and the lower the humidity of the hot air penetrating the material, the closer to the end of the drying process. These high-temperature and low-humidity air is directly exhausted from the air exhaust box, causing a large waste of heat energy. In addition, the material after being dried often has a high temperature because it has absorbed a large amount of heat during the drying process. The heat absorbed by the material is difficult to be effectively utilized, especially for materials with high specific heat capacity, which results in a larger waste. SUMMARY

[0003] The material dehydration device and method of the present application improve the existing problems in the prior art, can realize the secondary use of hot air in the static and dynamic drying processes, prevent the high-temperature and low-humidity hot air from being directly exhausted and wasted, and can utilize the low-temperature air to exchange heat with the high-temperature and dry material after the material is dried, thereby further saving energy and avoiding waste of heat energy. In addition, the material dehydration device and method of the present application dry the material in two stages. In the first stage, the material is indirectly affected by the hot air to complete a certain degree of moisture removal. In the second stage, the hot air directly acts on the material to complete the drying of the material. The material dehydration device and method not only save energy, but also improve the drying efficiency.

[0004] A material dehydration device, comprising:

[0005] two air boxes, the side walls of the two air boxes are respectively provided with air inlets, one of the two air boxes is provided with an air inlet, and the other air box is provided with an air outlet;

[0006] At least two material boxes, the material boxes are provided with feeding ports, and the material boxes are also provided with discharging ports, the side walls of the material boxes are provided with air vents, the interiors of the at least two material boxes are communicated with each other through the air vents on the respective side walls;

[0007] The material boxes are all arranged between the two wind boxes, the interior of the wind box and the interior of the material box adjacent to the wind box are communicated through the air vents on the side wall of the material box and the air vents on the side wall of the wind box.

[0008] A material dehydration device, comprising:

[0009] At least three wind boxes, the side walls of the wind boxes are provided with air vents, at least one of the at least three wind boxes is provided with a feeding port, and at least one of the at least three wind boxes is provided with a discharging port;

[0010] At least two material boxes, the material boxes are provided with feeding ports, and the material boxes are also provided with discharging ports, the side walls of the material boxes are provided with air vents;

[0011] The material boxes are respectively arranged between the respective wind boxes, the interior of each wind box and the interior of the material box adjacent to the wind box are communicated through the air vents on the side wall of the wind box and the air vents on the side wall of the material box.

[0012] A material dehydration method based on the material dehydration device, comprising the following steps:

[0013] First step: ensure that N material boxes participating in the drying operation in this step are filled with materials to be dehydrated, N is greater than or equal to 2, select one of the two wind boxes as a feeding wind box and the other as a discharging wind box, make the feeding port of the feeding wind box in an open state and its discharging port in a closed state, make the feeding port of the discharging wind box in a closed state and its discharging port in an open state, inject hot air into the feeding wind box through the feeding port of the feeding wind box, and maintain the drying operation for a first time period, which completes the drying of the materials in M material boxes, M is less than N;

[0014] Second step: unload the material in M material boxes which have finished dehydration at a set time, ensure that N material boxes which participate in drying operation in this step are filled with material to be dehydrated, N is greater than or equal to 2, and ensure that at least one material box in the N material boxes has material which is affected by hot air in the last drying operation time period but has not completely finished dehydration; use the air box which is used as exhaust air box in the last drying operation time period as intake air box, make the intake port of the air box in an open state, and make the exhaust port of the air box in a closed state; use the air box which is used as intake air box in the last drying operation time period as exhaust air box, and make the intake port of the air box in a closed state and the exhaust port in an open state; inject hot air into the intake air box of this step, and maintain the second time period drying operation, which completes the drying of the material in M material boxes, M is greater than or equal to 1 and M is less than or equal to N.

[0015] Fourth step: repeatedly repeat the second step operation, and the number of M and N can be changed.

[0016] A material dehydration method based on the material dehydration device, comprising the following steps:

[0017] First step: ensure that the corresponding material box is filled with material to be dehydrated; arbitrarily select an air box provided with an intake port as an intake air box, and arbitrarily select an air box provided with an exhaust port as an exhaust air box, while ensuring that the hot air injected into the intake air box passes through the material of at least two material boxes before being discharged from the exhaust port of the exhaust air box; open the intake port of the air box used as the intake air box, close the exhaust port of the air box, and close the intake ports of all the remaining air boxes; open the exhaust port of the air box used as the exhaust air box, close the intake port of the air box, and close the exhaust ports of all the remaining air boxes; preset a first drying time period, ensure that the material in M material boxes completes dehydration in the first drying time period, M is greater than or equal to 1, and ensure that the material in at least one material box which is affected by hot air cannot completely finish dehydration in the first drying time period; according to the order of hot air passing through the material box, the material box which completes dehydration in the first drying time period is sequentially set as No. 1 to No. M material box, and according to the order of hot air passing through the material box, the first material box after the No. M material box is set as No. M+1 material box;

[0018] Inject hot air of appropriate temperature and air pressure into the intake port of the intake air box through this step, and maintain the first drying time period drying operation;

[0019] Second step: unload the material in the M material boxes which have finished drying at the appropriate time; ensure that the corresponding material boxes are filled with the material to be dehydrated; reselect a wind box provided with an air inlet as the air inlet wind box and reselect a wind box provided with an air outlet as the air outlet wind box, ensure that the hot air injected into the air inlet wind box selected in this step is discharged from the air outlet of the air outlet wind box selected in this step after passing through the material in at least two material boxes, and the hot air must pass through the material in the M+1 material box; open the air inlet of the wind box used as the air inlet wind box in this step, close the air outlet of the wind box, and close the air inlets of all the remaining wind boxes; open the air outlet of the wind box used as the air outlet wind box in this step, close the air inlet of the wind box, and close the air outlets of all the remaining wind boxes; preset a second drying time period to ensure that the material in M (M is greater than or equal to 1) material boxes is dehydrated in the second drying time period, and ensure that the material in at least one of the material boxes through which the hot air passes cannot be completely dehydrated in the second drying time period; in the order of the hot air passing through the material boxes, reselect the material boxes in which the material is dehydrated in the second drying time period as the first to M material boxes, and select the first material box after the M material box as the M+1 material box in the order of the hot air passing through the material boxes;

[0020] Inject hot air of appropriate temperature and air pressure into the air inlet of the air inlet wind box selected in this step, and maintain the second drying time period drying operation;

[0021] Third step: repeatedly repeat the second step operation, and the number of M can be changed.

[0022] Due to the adoption of the above technical scheme, the application has the following beneficial effects:

[0023] The material dehydration device and the material dehydration method of the application adopt the structure of arranging at least two material boxes, so that the hot air passes through different material boxes in sequence along the flow direction, the material first dehydrated by the hot air is dehydrated first, the subsequent material receives the hot air, the hot air is used twice or more times, the high-temperature and low-humidity hot air is not directly discharged to avoid waste of heat energy, and the heat energy is fully utilized.

[0024] The material dehydration device and the material dehydration method of the application can make the low-temperature air exchange heat with the high-temperature and dry material after the material is dehydrated, and then be used, so that the energy is further saved.

[0025] The material dehydration device and the material dehydration method of the application make the material dehydrate to a certain extent in advance before the hot air directly acts on the material, so that the drying difficulty is reduced, the drying time is saved, and the drying efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1is a structural schematic diagram of a material dewatering device of embodiment 1 of the present application;

[0027] Figure 2 is a structural schematic diagram of a material dewatering device of embodiment 2 of the present application;

[0028] Figure 3 is a first use state sectional view of a material dewatering method of embodiment 3 of the present application;

[0029] Figure 4 is a second use state sectional view of a material dewatering method of embodiment 3 of the present application;

[0030] Figure 5 is a structural schematic diagram of a material dewatering device of embodiment 4 of the present application;

[0031] Figure 6 is a structural schematic diagram of a material dewatering device of embodiment 5 of the present application;

[0032] Figure 7 is a first use state sectional view of a material dewatering method of embodiment 6 of the present application;

[0033] Figure 8 is a second use state sectional view of a material dewatering method of embodiment 6 of the present application;

[0034] Figure 9 is a third use state sectional view of a material dewatering method of embodiment 6 of the present application;

[0035] Figure 10 is a fourth use state sectional view of a material dewatering method of embodiment 6 of the present application;

[0036] Figure 11 is a structural schematic diagram of a material dewatering device of embodiment 7 of the present application;

[0037] Figure 12 is a structural schematic diagram of a material dewatering device of embodiment 8 of the present application;

[0038] Figure 13 is a top view of a structural schematic diagram of a material dewatering device of embodiment 9 of the present application;

[0039] Figure 14 is a sectional view of a structural schematic diagram of a material dewatering device of embodiment 9 of the present application;

[0040] Figure 15 is a structural schematic diagram of a material dewatering device of embodiment 10 of the present application;

[0041] Figure 16 is a structural schematic diagram of a material dewatering device of embodiment 11 of the present application;

[0042] Figure 17 Figure 1 is a structural schematic diagram of a material dewatering device according to an embodiment of the present application;

[0043] Reference signs:

[0044] 11 - wind box, 12 - wind box, 13 - wind box, 14 - wind box, 21 - material box, 22 - material box, 23 - material box, 211 - secondary material box, 212 - secondary material box, 221 - secondary material box, 222 - secondary material box, 223 - secondary material box, 311 - material box partition, 321 - material box partition, 322 - material box partition, 4 - air vent, 51 - feeding port, 52 - discharging port, 61 - air inlet, 62 - air outlet, 63 - air inlet and outlet, 71 - air inlet valve, 72 - air outlet valve, 73 - internal air vent valve, 81 - material conveying device, 82 - screw conveying device. DETAILED DESCRIPTION

[0045] In the embodiments of the present application, hollow arrows represent dry air (relatively low humidity) and solid arrows represent hot and humid air (relatively high humidity, which is formed by the hot air carrying the moisture in the material during the drying process).

[0046] Embodiment 1:

[0047] With reference to Figure 1 The material dewatering device described in the embodiment includes a wind box 11, a wind box 12, a material box 21, and a material box 22. The wind box 11 is provided with an air inlet 61, and the wind box 12 is provided with an air outlet 62. The side walls of the wind box 11 and the wind box 12 are respectively provided with air vents 4. The material box 21 and the material box 22 are respectively provided with a feeding port 51 and a discharging port 52. The side walls of the material box 21 and the material box 22 are respectively provided with air vents 4. The material box 21 and the material box 22 are connected by a common wall, and the interiors of the material box 21 and the material box 22 are connected to each other through the air vents 4 on the common wall. The material box 21 and the material box 22 are arranged between the wind box 11 and the wind box 12. The wind box 11 is connected to the material box 21 by a common wall, and the interior of the wind box 11 is connected to the interior of the material box 21 through the air vents 4 on the common wall. The wind box 12 is connected to the material box 22 by a common wall, and the interior of the wind box 12 is connected to the interior of the material box 22 through the air vents 4 on the common wall.

[0048] The exhaust port 62 of the wind box 12 is kept unobstructed, and hot air is injected into the wind box 11 through the air inlet 61 of the wind box 11. The hot air enters the wind box 11 and then sequentially passes through the air inlets 4 on the side walls of the wind box 11, the material box 21, the material box 22 and the wind box 12, and is discharged through the exhaust port 62 provided on the wind box 12. In this process, the hot air sequentially penetrates the material box 21 and the material box 22, and sequentially dries the materials in the material box 21 and the material box 22. The hot air directly heats the materials in the material box 21 and removes the water vaporized from the materials while passing through the material box 21. After penetrating the materials, the hot air forms a humid hot gas, which continues to penetrate the material box 22 and continues to remove the water from the materials in the material box 22. The humid hot gas then enters the wind box 12 and is finally discharged from the exhaust port 62 provided on the wind box 12. In this process, the hot air directly acts on the materials in the material box 21 and indirectly acts on the materials in the material box 22. The hot air is used twice. Since the hot air first passes through the material box 21 and then passes through the material box 22, the materials in the material box 21 must be dried before the materials in the material box 22.

[0049] The present embodiment is suitable for simultaneously drying materials with different physical properties, and is also suitable for simultaneously drying materials with different drying requirements. For example, materials with low water content and high drying requirements are loaded into the material box 21, and materials with high water content and relatively low drying requirements are loaded into the material box 22. After the materials in the material box 21 are dried, the materials in the material box 21 are unloaded, and new materials with low water content and high drying requirements are filled into the material box 21 for drying. The materials with high water content and relatively low drying requirements in the material box 22 are indirectly used by the hot air, thereby achieving the purpose of saving heat energy.

[0050] The material dehydration device described in the present embodiment preferably uses the method of providing a plurality of air inlets 4 on the side walls of each wind box and each material box to ensure that the air path is unobstructed. Providing a plurality of air inlets 4 can make the hot air penetrate the materials more uniformly, thereby enhancing the drying effect of the materials. Of course, the number, size, shape and position of the air inlets on the side walls of each wind box and each material box are not limited in the present application, as long as the air can sequentially penetrate the materials in the corresponding material box.

[0051] Embodiment 2:

[0052] Reference Figure 2The material dehydration device comprises a wind box 11, a wind box 12, a material box 21 and a material box 22, the wind box 11 and the wind box 12 are respectively provided with an air inlet 61 and an air outlet 62, the side walls of the wind box 11 and the wind box 12 are respectively provided with air vents 4, the material box 21 and the material box 22 are respectively provided with a feeding port 51 and a discharging port 52, the side walls of the material box 21 and the material box 22 are respectively provided with air vents 4, the material box 21 and the material box 22 are connected in common, and the interiors of the material box 21 and the material box 22 are communicated with each other through the air vents 4 on the common side walls; the material box 21 and the material box 22 are arranged between the wind box 11 and the wind box 12, the wind box 11 is connected in common with the material box 21, the interior of the wind box 11 is communicated with the interior of the material box 21 through the air vents 4 on the common side walls, the wind box 12 is connected in common with the material box 22, and the interior of the wind box 12 is communicated with the interior of the material box 22 through the air vents 4 on the common side walls.

[0053] When the air inlet 61 of the wind box 11 and the air outlet 62 of the wind box 12 are opened, the air outlet 62 of the wind box 11 and the air inlet 61 of the wind box 12 are closed, and hot air is injected into the wind box 11 through the air inlet 61 arranged on the wind box 11, the hot air enters the wind box 11, sequentially passes through the material box 21 and the material box 22, then enters the wind box 12, and finally is discharged from the air outlet 62 arranged on the wind box 12. While the hot air sequentially passes through the material box 21 and the material box 22, it penetrates the materials in the material box 21 and the material box 22 in sequence, and sequentially dries the materials in the material box 21 and the material box 22.

[0054] When the air inlet 61 of the wind box 12 and the air outlet 62 of the wind box 11 are opened, the air outlet 62 of the wind box 12 and the air inlet 61 of the wind box 11 are closed, and hot air is injected into the wind box 12 through the air inlet 61 arranged on the wind box 12, the hot air enters the wind box 12, sequentially passes through the material box 22 and the material box 21, then enters the wind box 11, and finally is discharged from the air outlet 62 arranged on the wind box 11. While the hot air sequentially passes through the material box 22 and the material box 21, it penetrates the materials in the material box 22 and the material box 21 in sequence, and sequentially dries the materials in the material box 22 and the material box 21.

[0055] The material dehydration device comprises a wind box 11, a wind box 12, a material box 21 and a material box 22, the wind box 11 and the wind box 12 are respectively provided with an air inlet 61 and an air outlet 62, the side walls of the wind box 11 and the wind box 12 are respectively provided with air vents 4, the material box 21 and the material box 22 are respectively provided with a feeding port 51 and a discharging port 52, the side walls of the material box 21 and the material box 22 are respectively provided with air vents 4, the material box 21 and the material box 22 are connected in common, and the interiors of the material box 21 and the material box 22 are communicated with each other through the air vents 4 on the common side walls; the material box 21 and the material box 22 are arranged between the wind box 11 and the wind box 12, the wind box 11 is connected in common with the material box 21, the interior of the wind box 11 is communicated with the interior of the material box 21 through the air vents 4 on the common side walls, the wind box 12 is connected in common with the material box 22, and the interior of the wind box 12 is communicated with the interior of the material box 22 through the air vents 4 on the common side walls.

[0056] The material dehydration device described in the embodiment preferably adopts the form of two material boxes, which is simple and reasonable and easy to implement. Of course, the number of material boxes can also be more than two. The provision of more than two material boxes can increase the number of hot air penetrating the material boxes, while reducing the frequency of material filling and maintaining a high unloading frequency, achieving more compact continuous production.

[0057] The material dehydration device described in the embodiment preferably adopts the form of two air boxes, each provided with an air inlet and an air outlet, which is simple and reasonable and easy to implement. Of course, the air inlet and air outlet of any air box can be combined into one air inlet and outlet. When air is injected into the air box through the air inlet and outlet, the air inlet and outlet serve as the air inlet. When air is discharged from the air box through the air inlet and outlet, the air inlet and outlet serve as the air outlet. In addition, any air box can be provided with multiple air inlets and / or air outlets. As long as the purpose of air injection and air discharge can be achieved, the number of air inlets and air outlets provided in any air box is not limited, and the shape, area and position of the air inlets and air outlets are also not limited.

[0058] Embodiment 3:

[0059] With reference to Figure 3 and Figure 4 , the material dehydration method described in the embodiment is a material dehydration method based on the material dehydration device described in Embodiment 2, and the steps are as follows:

[0060] Step 1: Ensure that the material boxes 21 and 22 are filled with material to be dried.

[0061] Step 2: Open the air inlet 61 of the air box 11 and the air outlet 62 of the air box 12, and close the air outlet 62 of the air box 11 and the air inlet 61 of the air box 12; inject hot air of appropriate temperature and air pressure into the air box 11 through the air inlet 61 of the air box 11 to maintain the first time period of drying operation.

[0062] After the hot air is injected into the air box 11, it passes through the air box 21 and the air box 22 in sequence through the air vents 4 arranged on the side walls of the air box 11, the air box 21, the air box 22 and the air box 12, and then enters the air box 12 and is discharged from the air outlet 62 of the air box 12. In this process, the hot air first penetrates the air box 21 and then penetrates the air box 22. The hot air heats and removes the moisture of the materials in the air box 21 while penetrating the air box 21, thereby forming a humid hot gas. The humid hot gas continues to penetrate the air box 22 and continues to remove the moisture of the materials in the air box 22. As the drying process of the materials in the air box 21 continues, the temperature of the humid hot gas passing out of the air box 21 gradually increases and the humidity gradually decreases, and the drying promotion effect on the materials in the air box 22 is continuously strengthened. Since the hot air first penetrates the air box 21 and then penetrates the air box 22, the materials in the air box 21 must be dried before the materials in the air box 22. When the materials in the air box 21 are dried, the materials in the air box 22 have not yet completely dried, but the materials in the air box 22 have also achieved a considerable degree of moisture removal at this time, shortening the subsequent drying process and improving efficiency and saving energy.

[0063] Step 3: After the first drying time period ends, the hot air injected into the air box 11 is cooled to an appropriate temperature, and the first cooling time period cooling operation is maintained.

[0064] In this step, the hot air with lower temperature penetrates the materials in the air box 21, which not only can lower the temperature of the materials in the air box 21 which have been dried to an appropriate temperature, but also can exchange heat with the materials in the air box 21 with higher temperature and promote the moisture removal of the materials in the air box 22 after being heated, further improving the utilization rate of heat and avoiding waste of heat.

[0065] Step 4: After the first cooling time period ends, the materials in the air box 21 which have been dried are unloaded, and new materials to be dried are filled into the air box 21; the air inlet 61 of the air box 12 and the air outlet 62 of the air box 11 are in an open state, and the air outlet 62 of the air box 12 and the air inlet 61 of the air box 11 are in a closed state; the hot air with appropriate temperature and air pressure is injected into the air box 12 through the air inlet 61 of the air box 12 to maintain the second drying time period drying operation.

[0066] After the hot air is injected into the air box 12, it passes through the air box 12, the material box 22, the material box 21, and the air box 11 in sequence via the air vents 4 arranged on the side walls of the air box 12, the material box 22, the material box 21, and the air box 11, and then enters the air box 11 and is discharged from the air outlet 62 of the air box 11. In this process, the hot air first penetrates the material box 22 and then penetrates the material box 21. While penetrating the material box 22, the hot air heats and removes the moisture of the material in the material box 22, thereby forming a humid hot gas. The humid hot gas continues to penetrate the material box 21 and continues to remove the moisture of the material in the material box 21. Since the hot air first penetrates the material box 22 and then penetrates the material box 21, and the material in the material box 22 has achieved a considerable degree of moisture removal in the second drying operation, the material in the material box 22 must complete drying before the material in the material box 21. When the material in the material box 22 completes drying, the material in the material box 21 has not yet completely completed drying, but the material in the material box 21 has also achieved a considerable degree of moisture removal at this time, thereby shortening the subsequent drying process, improving efficiency, and saving energy.

[0067] Fifth step: After the second drying time period ends, the hot air injected into the air box 12 is cooled to an appropriate temperature, and a second cooling time period is maintained for cooling operation.

[0068] Sixth step: The material in the material box 22 that has completed drying is unloaded.

[0069] Seventh step: The first step to the sixth step are repeatedly repeated.

[0070] The material drying method described in this embodiment utilizes the sequence of hot air penetrating two material boxes to sequentially dry the materials in different material boxes. In the material drying process, the hot air directly acting on the material must gradually increase in temperature and gradually decrease in humidity over time. If this is not utilized, it will inevitably result in waste of heat. Therefore, when the hot air directly acts on the material in the first material box, the material in the second material box is used to receive the hot air penetrating out of the first material box, which enables the hot air to be utilized twice and greatly reduces heat waste. Although the material in the second material box is only indirectly acted on by the hot air, when the material in the first material box completes drying, the material indirectly acted on by the hot air has also completed a considerable degree of moisture removal, thereby shortening the subsequent drying time. When the material in the first material box directly acted on by the hot air completes drying, the material in the first material box is unloaded, new material to be dried is reloaded into the first material box, the hot air directly acts on the material in the second material box, and the new material to be dried in the first material box is used to receive the hot air penetrating out of the second material box. This cycle is repeated, which not only saves energy but also saves drying time and improves efficiency.

[0071] The material drying method described in the embodiment can continue to promote the moisture removal of the material and reduce the material to a suitable temperature after the material is dried, which is beneficial to the subsequent storage of the dried material; and the low-temperature hot air can exchange heat with the material at a higher temperature to increase the air temperature and continue to promote the moisture removal of the material in the next material box, thereby avoiding waste of heat. Of course, not all materials need to be cooled after drying, and in actual production, the first cooling time period and / or the second cooling time period can be set or not set according to the situation.

[0072] Embodiment 4:

[0073] With reference to Figure 5 The material dehydration device described in the embodiment includes three air boxes and two material boxes, the three air boxes are air box 11, air box 12 and air box 13, and the two material boxes are material box 21 and material box 22; the air box 11, the air box 12 and the air box 13 are respectively provided with a temperature and humidity monitoring device (not shown in the figure) for detecting the air temperature and humidity in each air box, the side walls of the air box 11, the air box 12 and the air box 13 are respectively provided with air vents 4, the air box 11 is provided with an air inlet 61, and the air box 13 is provided with an air outlet 62; the material box 21 and the material box 22 are respectively provided with a feeding port 51 and a discharging port 52, and the side walls of the material box 21 and the material box 22 are respectively provided with air vents 4; the air box 11 and the material box 21 are connected by a common wall, the interiors of the air box 11 and the material box 21 are communicated through the air vents 4 on the common wall of the air box 11 and the material box 21, the material box 21 and the air box 12 are connected by a common wall, the interiors of the material box 21 and the air box 12 are communicated through the air vents 4 on the common wall of the material box 21 and the air box 12, the air box 12 and the material box 22 are connected by a common wall, the interiors of the air box 12 and the material box 22 are communicated through the air vents 4 on the common wall of the air box 12 and the material box 22, and the material box 22 and the air box 13 are connected by a common wall, the interiors of the material box 22 and the air box 13 are communicated through the air vents 4 on the common wall of the material box 22 and the air box 13.

[0074] The air outlet 62 of the air box 13 is kept unobstructed, hot air is injected into the air box 11 through the air inlet 61 of the air box 11, the hot air enters the air box 13 in sequence through the air vents 4 on the side walls of the air box 11, the material box 21, the air box 12, the material box 22 and the air box 13, and is discharged through the air outlet 62 provided on the air box 13, and in this process, the hot air penetrates the materials in the material box 21 and the material box 22 in sequence, and the hot air is used twice. When the material in the material box 21 is dried, the material in the material box 22 has not been completely dried, but has completed a considerable degree of moisture removal, which is beneficial to the subsequent drying operation.

[0075] The embodiment is suitable for drying materials with different physical properties at the same time, and is also suitable for drying materials with different drying requirements at the same time. For example, low-moisture materials to be dried are loaded into the material box 21, and high-moisture materials to be dried are loaded into the material box 22. After the low-moisture materials in the material box 21 are dried, the high-moisture materials in the material box 22 continue to be dried, which can save heat energy.

[0076] The material dehydration device described in the embodiment is provided with three air boxes and two material boxes, and the air box 11 is provided with an air inlet, and the air box 13 is provided with an air outlet. Of course, a plurality of air boxes and a plurality of material boxes can also be provided, and air inlets and air outlets can be respectively arranged at the first and last air boxes, so that the hot air can be used multiple times to realize the purpose of drying the materials in the material boxes in turn. In addition, air inlets and / or air outlets can be arranged in each air box to realize diversified drying operations.

[0077] The material dehydration device described in the embodiment is provided with temperature and humidity monitoring devices in the air box 11, the air box 12, and the air box 13. By monitoring the air temperature or humidity in the corresponding air box, the drying stage and drying degree of the materials in each material box can be accurately controlled, and the air inlet temperature and air supply amount can be adjusted accordingly to control the drying progress of the materials and make the drying operation process more scientific.

[0078] Embodiment 5:

[0079] With reference to Figure 6 The material dehydration device described in the embodiment includes four air boxes and three material boxes. The four air boxes are the air box 11, the air box 12, the air box 13, and the air box 14. The three material boxes are the material box 21, the material box 22, and the material box 23. The air box 11, the air box 12, the air box 13, and the air box 14 are respectively provided with air inlets 61 and air outlets 62, and the air inlets 61 and the air outlets 62 of the four air boxes are respectively provided with air inlet valves 71 and air outlet valves 72. The side walls of the four air boxes are also respectively provided with air vents 4. The material box 21, the material box 22, and the material box 23 are respectively provided with material inlets 51 and material outlets 52, and the side walls of the material box 21, the material box 22, and the material box 23 are also respectively provided with air vents 4. The air box 11 and the material box 21, the material box 21 and the air box 12, the air box 12 and the material box 22, the material box 22 and the air box 13, the air box 13 and the material box 23, and the material box 23 and the air box 14 are all connected by a common wall, so that they are internally connected through the air vents 4 on the common wall.

[0080] The air inlet valve 71 of any one of the air boxes 11, 12, 13 and 14 is opened, the air outlet valve 72 of any one of the air boxes except the air box with the opened air inlet valve 71 is opened, all the other air inlet valves 71 and air outlet valves 72 are closed, hot air with a suitable temperature and air pressure is injected into the air box with the opened air inlet valve 71, the hot air is finally discharged from the air outlet 62 of the air box with the opened air outlet valve 72, and the hot air at least passes through one material box and dries the material in the material box; when the hot air passes through two or more material boxes, the hot air directly or indirectly acts on the materials in the corresponding material boxes in the order of passing through the material boxes, and the materials directly acted on by the hot air are dried first, and when the materials directly acted on by the hot air are dried, the materials indirectly acted on by the hot air are not completely dried, but have achieved a considerable degree of moisture removal.

[0081] The material dehydration device described in the embodiment can control the direction of the hot air and the number and order of the material boxes penetrated by the hot air according to needs by adjusting the opening and closing relationship of the air inlet valves 71 and the air outlet valves 72 of the air boxes 11, 12, 13 and 14, and can not only realize diversified drying operations, but also utilize the hot air twice or three times, thereby achieving the purposes of saving energy and improving the material drying efficiency.

[0082] The material dehydration device described in the embodiment is provided with four air boxes and three material boxes, and the structure is relatively easy to manufacture and can realize the switching of multiple air paths and diversified drying operations. Of course, the material dehydration device described in the embodiment can also be provided with three air boxes and two material boxes, or multiple air boxes and multiple material boxes, thereby realizing the utilization of the hot air twice or multiple times. In summary, as long as the air can penetrate the materials in at least two material boxes in turn, the number of air boxes and material boxes is not limited.

[0083] The material dehydration device described in the embodiment preferably adopts the form of providing one air inlet and one air outlet on each air box, and the structure form has a reasonable layout and is convenient to manufacture and operate. Of course, the air inlet and / or air outlet can not be provided on part of the air boxes according to actual conditions, or multiple air inlets and / or air outlets can be provided on the same air box, and the provision of multiple air inlets or air outlets can make the hot air penetrate the materials more uniformly. In summary, as long as the hot air can penetrate the materials in the material boxes and be reused, the number of air inlets and air outlets provided on each air box is not limited.

[0084] The material dewatering device described in the embodiment preferably adopts the setting mode that the connecting surfaces of the four wind boxes and the three material boxes are all rectangular and have equal areas. This setting mode has reasonable layout, uniform material passing through the wind, and also conforms to the general equipment processing habit. Of course, under the premise that the hot air can penetrate the corresponding material boxes in turn, the shapes of the wind boxes and the material boxes are not limited, the volumes, areas and proportional relationships between the wind boxes and the material boxes are also not limited, and the wind boxes and the material boxes can adopt any shape such as triangle, circle, trapezoid, polygon, irregular shape and the like.

[0085] The material dewatering device described in the embodiment preferably adopts the arrangement mode that the wind boxes and the material boxes are parallel to each other. The parallel arrangement is conducive to uniform material passing through the wind and also conforms to the general equipment manufacturing habit. Of course, under the premise that the wind can penetrate the corresponding material boxes in turn, the wind boxes and the material boxes can also be arranged non-parallelly, the wind boxes and the material boxes can form any angle, and the included angle between the wind boxes and the material boxes and the horizontal plane is not limited.

[0086] The material dewatering device described in the embodiment preferably adopts the arrangement mode that the wind boxes and the material boxes are arranged in turn in the transverse direction. This structure is simple, compact and easy to manufacture. Of course, the wind boxes and the material boxes can also be arranged non-sequentially in the transverse direction, for example, the wind boxes and the material boxes can all or partially adopt the arrangement mode of surrounding structure. Therefore, under the premise that the hot air can penetrate the corresponding material boxes in turn, the relative position relationship between the wind boxes and the material boxes is not limited.

[0087] The material dewatering device described in the embodiment adopts the common wall connection form between the wind boxes and the material boxes. The common wall connection is not only simple and easy to operate, but also saves materials. Of course, the wind boxes and the material boxes can also partially or wholly adopt other connection modes to realize internal communication. Under the premise that the wind can penetrate the materials in the material boxes in turn, the wind boxes and the material boxes can adopt any connection mode to realize internal communication.

[0088] The material dewatering device described in the embodiment preferably adopts the structure mode that each material box is provided with one feeding port and one discharging port, and the feeding port is arranged at the top of the material box and the discharging port is arranged at the bottom of the material box. This structure can facilitate feeding and discharging by using the gravity of the materials, and is simple and easy to implement. Of course, since the functions of the feeding port and the discharging port are to feed and discharge, the positions, shapes, sizes and numbers of the feeding port and the discharging port are not limited as long as the functions can be met.

[0089] Embodiment 6:

[0090] Referring toFigure 7 Figure 10 The material drying method described in the embodiment is a material drying method based on the material dehydration device described in Embodiment 5, and the steps are as follows:

[0091] First step: Ensure that the material boxes 21 and 22 are filled with material to be dried, and that the air inlet valve 71 of the wind box 11 and the air outlet valve 72 of the wind box 13 are in the open state, and that the air outlet valve 72 of the wind box 11 and the air inlet valve 71 of the wind box 13 are in the closed state, while all the remaining air inlet valves 71 and air outlet valves 72 of the wind boxes are in the closed state. Hot air of appropriate temperature and air pressure is injected into the wind box 11 through the air inlet 61 of the wind box 11 to maintain the first period of drying operation.

[0092] After the hot air enters the wind box 11, it successively passes through the material boxes 21 and 22. The hot air directly acts on the material in the material box 21 and indirectly acts on the material in the material box 22. The drying speed of the material in the material box 21 is faster than that of the material in the material box 22. When the first period of drying operation ends, the material in the material box 21 has completed drying, and the material in the material box 22 has not completely completed drying, but has completed a considerable degree of moisture removal, shortening the subsequent drying process and saving energy.

[0093] Second step: Remove the material in the material box 21 that has completed drying, and ensure that the material box 23 is filled with material to be dried, and that the air inlet valve 71 of the wind box 12 and the air outlet valve 72 of the wind box 14 are in the open state, and that the air outlet valve 72 of the wind box 12 and the air inlet valve 71 of the wind box 14 are in the closed state, while all the remaining air inlet valves 71 and air outlet valves 72 of the wind boxes are in the closed state. Hot air of appropriate temperature and air pressure is injected into the wind box 12 through the air inlet 61 of the wind box 12 to maintain the second period of drying operation.

[0094] After the hot air enters the wind box 12, it successively passes through the material boxes 22 and 23. The hot air directly acts on the material in the material box 22 and indirectly acts on the material in the material box 23. The drying speed of the material in the material box 22 is faster than that of the material in the material box 23. Since the material in the material box 22 has completed a considerable degree of moisture removal during the first period of drying operation, it will complete drying more quickly during the second period. When the second period of drying operation ends, the material in the material box 22 has completed drying, and the material in the material box 23 has not completely completed drying, but has completed a considerable degree of moisture removal, shortening the subsequent drying process and saving energy.

[0095] ​Third step: unload the material in material box 22 which has been dried, and refill the new material to be dried into material box 22, make the air inlet valve 71 of air box 14 and the air outlet valve 72 of air box 12 open, and make the air outlet valve 72 of air box 14 and the air inlet valve 71 of air box 12 close, and make all the air inlet valves 71 and air outlet valves 72 of the rest of the air boxes close, inject hot air with appropriate temperature and air pressure into air box 14 through the air inlet 61 of air box 14, and maintain the third drying operation period.

[0096] After the hot air enters air box 14, it passes through material box 23 and material box 22 in turn, and directly acts on the material in material box 23 and indirectly acts on the material in material box 22, and the drying speed of the material in material box 23 is faster than that of the material in material box 22, and since the material in material box 23 has completed a considerable degree of moisture removal during the second drying operation period, it will complete drying faster during the third drying operation period; when the third drying operation period ends, the material in material box 23 has completed drying, and the material in material box 22 has not completely completed drying, but has also completed a considerable degree of moisture removal.

[0097] Fourth step: unload the material in material box 23 which has been dried, and refill the new material to be dried into material box 21, make the air inlet valve 71 of air box 13 and the air outlet valve 72 of air box 11 open, and make the air outlet valve 72 of air box 13 and the air inlet valve 71 of air box 11 close, and make all the air inlet valves 71 and air outlet valves 72 of the rest of the air boxes close, inject hot air with appropriate temperature and air pressure into air box 13 through the air inlet 61 of air box 13, and maintain the fourth drying operation period.

[0098] After the hot air enters air box 13, it passes through material box 22 and material box 21 in turn, and directly acts on the material in material box 22 and indirectly acts on the material in material box 21, and the drying speed of the material in material box 22 is faster than that of the material in material box 21, and since the material in material box 22 has completed a considerable degree of moisture removal during the third drying operation period, it will complete drying faster during the fourth drying operation period; when the fourth drying operation period ends, the material in material box 22 has completed drying, and the material in material box 21 has not completely completed drying, but has also completed a considerable degree of moisture removal.

[0099] Fifth step: repeat the first to fourth steps of the drying operation.

[0100] The drying method described in this embodiment can set a cooling period and perform a cooling operation after each drying period ends.

[0101] The drying method described in the embodiment can realize alternating air inlet and air exhaust among the air boxes by controlling the opening and closing of the air inlet valve and the air exhaust valve of each air box, so as to control the hot air path.

[0102] The drying method described in the embodiment controls the hot air to continuously penetrate two material boxes in each drying time period, and sequentially dries the materials in each material box by using the penetration sequence of the hot air, and realizes the secondary use of the hot air in each drying time period, thereby saving energy and improving efficiency. Of course, in actual operation, the hot air can also be controlled to alternately penetrate two material boxes and three material boxes in each drying time period, so as to alternately realize the secondary and tertiary use of the hot air, and the hot air can also be controlled to only penetrate one material box, so as to complete the drying of the materials in the last material box in a batch of materials. In actual production, the flexibility can be grasped according to the needs.

[0103] Embodiment 7:

[0104] With reference to Figure 11 The material dehydration device described in the embodiment is based on embodiment 5, the material box 21 is provided with a material box partition plate 311, the material box partition plate 311 divides the material box 21 into a secondary material box 211 and a secondary material box 212; the material box 22 is provided with a material box partition plate 321 and a material box partition plate 322, the material box partition plate 321 and the material box partition plate 322 divide the material box 22 into a secondary material box 221, a secondary material box 222 and a secondary material box 223; the material box partition plate 311, the material box partition plate 321 and the material box partition plate 322 are respectively provided with air vents 4, the interiors of each adjacent secondary material box divided by the air vents 4 on the corresponding partition plate are in communication with each other; the secondary material box 211, the secondary material box 212, the secondary material box 221, the secondary material box 222 and the secondary material box 223 are respectively provided with independent feeding ports 51 and independent discharge ports 52.

[0105] The material dehydration device described in the embodiment is based on embodiment 5, and is provided with a material box partition plate and a secondary material box. By adjusting the opening and closing relationship of the air inlet valve 71 and the air exhaust valve 72 of the air box 11, the air box 12, the air box 13 and the air box 14, not only the direction of the hot air can be controlled, but also the sequence and the number of the hot air penetrating each secondary material box and the material box 23 can be controlled, so as to realize diversified energy-saving drying operation.

[0106] The material dehydration device described in the embodiment preferably adopts the mode of arranging a plurality of air vents on the partition plate of each material box to ensure that the air path is unobstructed. The arrangement of a plurality of air vents on the partition plate of the material box can make the hot air penetrate the material more uniformly, thereby enhancing the drying effect of the material. Of course, the number, size, shape, and position of the air vents on the partition plate of the material box are not limited as long as the hot air can penetrate the material of the corresponding secondary material box in turn.

[0107] The material dehydration device described in the embodiment preferably adopts a rectangular planar structure for the partition plate of the material box, and divides the material box 21 and the material box 22 into two and three secondary material boxes, respectively. The rectangular planar structure of the partition plate of the material box is convenient to manufacture and easy to implement. The form of the partition plate of the material box dividing the material box also conforms to the general habit of equipment manufacturing. Of course, the partition plate of the material box can also be other planar structures, such as triangular, trapezoidal, etc., or a non-planar structure. The partition plate of the material box can also divide the material box in a non-equal form. In summary, as long as the partition plate of the material box can divide the material box and the hot air can penetrate the material of the corresponding secondary material box in turn, the shape, area, position, and number of the partition plate of the material box are not limited, and the shape, volume, position, and number of the secondary material boxes divided are also not limited.

[0108] Embodiment 8:

[0109] With reference to Figure 12 The material dehydration device described in the embodiment differs from that of embodiment 5 in that the material dehydration device described in the embodiment cancels the bellow 14 of embodiment 5 and only provides three bellows and three material boxes. The three bellows are the bellow 11, the bellow 12, and the bellow 13, and the three material boxes are the material box 21, the material box 22, and the material box 23. The bellow 11, the material box 21, the bellow 12, the material box 22, the bellow 13, the material box 23, and the bellow 11 form a series closed structure, and the bellow 11, the bellow 12, and the bellow 13 are respectively provided with an internal ventilation valve 73. By adjusting the opening and closing of the air inlet valve 71, the air outlet valve 72, and the internal ventilation valve 73 of each bellow, not only can the material in the three material boxes be sequentially and circularly dried, but also other diversified drying operations can be realized. The layout of the drying device is reasonable, and the operation is more flexible.

[0110] The material dehydration device described in the embodiment is provided with one internal ventilation valve 73 in each bellow. The provision of one internal ventilation valve 73 conforms to the general operation habit and is relatively easy to implement. Of course, the internal ventilation valve 73 can also not be provided in each bellow, and a plurality of internal ventilation valves 73 can also be provided in each bellow. In actual operation, as long as the secondary or multiple use of the hot air can be realized, the number of the internal ventilation valves 73 in each bellow is not limited.

[0111] The material dehydration device provided by the embodiment can form a closed circulation of the hot air, so that the hot air can run in the same circulation direction during the drying operation of the material, and can meet more complex and diversified production needs. Of course, the material dehydration device provided by the application can also be composed of a series of closed structures formed by two wind boxes and two material boxes, and can also be composed of a series of closed structures formed by a plurality of wind boxes and a plurality of material boxes, and a material box partition can be further arranged in the material box, and a secondary material box can be further arranged between the wind boxes, so that the number of the wind boxes, the material boxes and the secondary material boxes in the series of closed structures is not limited.

[0112] Embodiment 9:

[0113] With reference to Figure 13 and Figure 14 The material dehydration device provided by the embodiment includes three wind boxes and two material boxes, the three wind boxes are wind box 11, wind box 12 and wind box 13, and the two material boxes are material box 21 and material box 22; the wind box 11, the wind box 13, the material box 21 and the material box 22 are all cylindrical structures, the wind box 11 surrounds the material box 21, and the material box 22 surrounds the wind box 13; the wind box 12 is a special-shaped structure and is composed of two cylindrical structures with different volumes, and the interiors of the two cylindrical structures are connected through a pipeline, one of the two cylindrical structures surrounds the material box 22, and the other cylindrical structure is surrounded by the material box 21; the side wall of the wind box 11 is provided with an air vent 4, and the wind box 11 is further provided with an air inlet and outlet 63, the side wall of the wind box 13 is provided with an air vent 4, and the wind box 13 is further provided with an air inlet and outlet 63, and the side wall of the wind box 12 is provided with an air vent 4; the material box 21 and the material box 22 are respectively provided with a feeding port 51 and a discharging port 52, and the side walls of the material box 21 and the material box 22 are both provided with air vents 4; the wind box 11, the material box 21 and the wind box 12, the wind box 12 and the material box 22, the material box 22 and the wind box 13 are all connected by a common wall, and are all connected through the air vents 4 on the common wall.

[0114] The air inlet and outlet 63 of the wind box 13 is kept unblocked, hot air is injected into the wind box 11 through the air inlet and outlet 63 of the wind box 11, the hot air first penetrates the material box 21, then enters the cylindrical structure of the special-shaped wind box 12 surrounded by the material box 21, is guided through the internal pipeline of the special-shaped wind box 12, then enters the cylindrical structure of the special-shaped wind box 12 surrounding the material box 22, penetrates the material box 22 and enters the wind box 13, and is finally discharged from the air inlet and outlet 63 of the wind box 13.

[0115] The air inlet and outlet 63 of the wind box 11 is kept unblocked, hot air is injected into the wind box 13 through the air inlet and outlet 63 of the wind box 13, the hot air first penetrates the material box 22, then penetrates the material box 21, and is finally discharged from the air inlet and outlet 63 of the wind box 11.

[0116] The material dehydration device has the advantages that the air inlets and air outlets of the wind boxes 11 and 13 are combined, the air inlet and outlet system is simplified, and the drying operation is facilitated.

[0117] The material dehydration device has the advantages that the air inlets and air outlets of the wind boxes 11 and 13 are combined, the air inlet and outlet system is simplified, and the drying operation is facilitated.

[0118] Embodiment 10:

[0119] With reference to Figure 15 The material dehydration device has the advantages that the air inlets and air outlets of the wind boxes 11 and 13 are combined, the air inlet and outlet system is simplified, and the drying operation is facilitated.

[0120] The hot air with suitable temperature and air pressure is introduced into the wind box 11, and the flow sequence of the hot air is the wind box 11, the material box 21, the wind box 12, the material box 22 and the wind box 13 in sequence. The hot air first penetrates the material in the material box 21, and then penetrates the material in the material box 22. The hot air that has penetrated the material box 21 is used again by the material in the material box 22. The hot air with suitable temperature and air pressure is introduced into the wind box 13, and the flow sequence of the hot air is the wind box 13, the material box 22, the wind box 12, the material box 21 and the wind box 11 in sequence. The hot air first penetrates the material in the material box 22, and then penetrates the material in the material box 21. The hot air that has penetrated the material box 22 is used again by the material in the material box 21.

[0121] The material dehydration device described in the embodiment is arranged in a linear shape in a horizontal direction in front of and behind the line, facilitates material filling, and can meet the production needs under some specific conditions.

[0122] The material dehydration device described in the embodiment is provided with three wind boxes and two material boxes, and has a simple structure and is convenient to implement. Of course, a plurality of material boxes can be arranged in a linear shape in a horizontal direction in front of and behind the line according to needs, and a plurality of wind boxes can be provided correspondingly. Each wind box can be further provided with an air inlet and an air outlet, and corresponding air inlet and outlet valves and an internal ventilation valve. Each material box can be further provided with a material box partition plate, so as to realize diversified drying operations.

[0123] Embodiment 11:

[0124] With reference to Figure 16 The material dehydration device described in the embodiment includes three wind boxes and two material boxes. The three wind boxes are the wind box 11, the wind box 12 and the wind box 13. The wind box 11 is provided with the air inlet 61, and the wind box 13 is provided with the air outlet 62. The two material boxes are the material box 21 and the material box 22. The material inlet 51 of the material box 22 and the material outlet 52 of the material box 21 are respectively connected with the material conveying device 81. The connection relationship and the communication mode between the wind box 11, the material box 21, the wind box 12, the material box 22 and the wind box 13 are basically the same as those of the material dehydration device described in the embodiment 10, but the positional relationship therebetween is different from that of the embodiment 10. The material box 22 and the material box 21 are arranged in a linear shape in a vertical direction. The material outlet 52 of the material box 22 is connected with the material inlet 51 of the material box 21, so that the material discharged from the material box 22 directly enters the material box 21 under the action of gravity.

[0125] The exhaust port 62 of the air box 13 is kept unblocked, and hot air is injected into the air box 11 through the air inlet 61 of the air box 11, and the sequence of the hot air flowing through the air boxes and the material boxes is the air box 11, the material box 21, the air box 12, the material box 22, and the air box 13, and the hot air first penetrates the material in the material box 21, and then penetrates the material in the material box 22, and the hot air that has penetrated the material box 21 is used again by the material in the material box 22; when the material conveying device 81 connected to the material inlet 51 of the material box 22 is started, the material can be continuously fed into the material box 22; when the material conveying device 81 connected to the material outlet 52 of the material box 21 is started, the material in the material box 21 and the material box 22 moves from top to bottom under the action of gravity and is continuously discharged; the material conveying devices 81 connected to the material inlet 51 of the material box 22 and the material outlet 52 of the material box 21 are started at appropriate times, respectively, and the material in the material box 22 is first indirectly acted on by the hot air that has penetrated the material box 21 in the material box 22, and then moves into the material box 21 under the action of gravity, and is directly acted on by the hot air in the material box 21, and then is discharged from the material outlet 52; the feeding and discharging speeds of the material conveying devices 81 are adjusted, respectively, so that the feeding and discharging speeds are balanced at appropriate speeds, and the movement time of the material in the material box 22 and the material box 21 is appropriate, so that the material is dried during the movement from the material inlet 51 of the material box 22 to the material outlet 52 of the material box 21.

[0126] The material dehydration device described in the embodiment is provided with three air boxes and two material boxes, and the material is displaced by its own gravity, so that the dynamic drying is realized, the secondary use of hot air is realized, the automation level of drying is enhanced, the energy is saved, and the efficiency is improved. Of course, a plurality of material boxes and a plurality of air boxes can be provided according to needs, so that the material is dynamically dried and the hot air is used multiple times, especially when the material box is thin, the effect of providing multiple material boxes and air boxes is better.

[0127] The material dehydration device described in the embodiment is preferably provided with two material boxes with equal cross-sectional areas and volumes, but the cross-sectional areas and volumes of the material boxes can also be unequal, and the cross-sectional areas and volumes of two or more material boxes and the proportional relationship therebetween are not limited as long as the hot air can penetrate the material boxes in sequence. The cross-sectional areas and volumes can be flexibly set according to needs during actual operation.

[0128] The material dehydration device described in the embodiment utilizes the gravity of the material to realize the movement of the material, so that the dynamic drying is realized. Of course, other power can also be used to realize the movement of the material, and then the dynamic drying is realized.

[0129] Embodiment 12:

[0130] Reference Figure 17The material dehydration device comprises a wind box 11, a wind box 12, a wind box 13, a material box 21 and a material box 22; the wind box 11 is provided with an air inlet 61, and the wind box 13 is provided with an air outlet 62; the material box 21 and the material box 22 are respectively provided with a feeding port 51 and a discharging port 52, the feeding port 51 of the material box 21 is connected with the discharging port 52 of the material box 22, so that the material discharged from the discharging port 52 of the material box 22 can only enter the material box 21; the inside of the material box 21 and the material box 22 is provided with a spiral conveying device 82, the spiral conveying device 82 penetrates through the material box 21 and the material box 22, when the spiral conveying device rotates, the material moves from the feeding port 51 of the material box 22 to the discharging port 52 of the material box 21, when hot air is injected into the wind box 11 through the air inlet of the wind box 11, the hot air first penetrates through the material box 21 and then penetrates through the material box 22, so that the dynamic drying of the material can be realized under the premise of twice utilization of the hot air.

[0131] The material dehydration device comprises a wind box 11, a wind box 12, a wind box 13, a material box 21 and a material box 22; the wind box 11 is provided with an air inlet 61, and the wind box 13 is provided with an air outlet 62; the material box 21 and the material box 22 are respectively provided with a feeding port 51 and a discharging port 52, the feeding port 51 of the material box 21 is connected with the discharging port 52 of the material box 22, so that the material discharged from the discharging port 52 of the material box 22 can only enter the material box 21; the inside of the material box 21 and the material box 22 is provided with a spiral conveying device 82, the spiral conveying device 82 penetrates through the material box 21 and the material box 22, when the spiral conveying device rotates, the material moves from the feeding port 51 of the material box 22 to the discharging port 52 of the material box 21, when hot air is injected into the wind box 11 through the air inlet of the wind box 11, the hot air first penetrates through the material box 21 and then penetrates through the material box 22, so that the dynamic drying of the material can be realized under the premise of twice utilization of the hot air.

[0132] The material dehydration device comprises a wind box 11, a wind box 12, a wind box 13, a material box 21 and a material box 22; the wind box 11 is provided with an air inlet 61, and the wind box 13 is provided with an air outlet 62; the material box 21 and the material box 22 are respectively provided with a feeding port 51 and a discharging port 52, the feeding port 51 of the material box 21 is connected with the discharging port 52 of the material box 22, so that the material discharged from the discharging port 52 of the material box 22 can only enter the material box 21; the inside of the material box 21 and the material box 22 is provided with a spiral conveying device 82, the spiral conveying device 82 penetrates through the material box 21 and the material box 22, when the spiral conveying device rotates, the material moves from the feeding port 51 of the material box 22 to the discharging port 52 of the material box 21, when hot air is injected into the wind box 11 through the air inlet of the wind box 11, the hot air first penetrates through the material box 21 and then penetrates through the material box 22, so that the dynamic drying of the material can be realized under the premise of twice utilization of the hot air.

[0133] The material dehydration device comprises a wind box 11, a wind box 12, a wind box 13, a material box 21 and a material box 22; the wind box 11 is provided with an air inlet 61, and the wind box 13 is provided with an air outlet 62; the material box 21 and the material box 22 are respectively provided with a feeding port 51 and a discharging port 52, the feeding port 51 of the material box 21 is connected with the discharging port 52 of the material box 22, so that the material discharged from the discharging port 52 of the material box 22 can only enter the material box 21; the inside of the material box 21 and the material box 22 is provided with a spiral conveying device 82, the spiral conveying device 82 penetrates through the material box 21 and the material box 22, when the spiral conveying device rotates, the material moves from the feeding port 51 of the material box 22 to the discharging port 52 of the material box 21, when hot air is injected into the wind box 11 through the air inlet of the wind box 11, the hot air first penetrates through the material box 21 and then penetrates through the material box 22, so that the dynamic drying of the material can be realized under the premise of twice utilization of the hot air.

Claims

1. A material dewatering apparatus, characterized by, The device comprises: two wind boxes, the side walls of which are respectively provided with air vents, one of the two wind boxes is provided with an air inlet, and the other is provided with an air outlet; at least two material boxes, which are provided with an air inlet and an air outlet, and the side walls of which are provided with air vents, the interiors of the at least two material boxes are connected with each other through the air vents on the side walls; the material boxes are all arranged between the two wind boxes, the interior of the wind box and the interior of the material box adjacent to the wind box are connected through the air vents on the side walls of the material box and the side walls of the wind box, so that hot air can be injected from the air inlet of one of the wind boxes, the hot air passes through the material boxes in turn, and finally is discharged from the air outlet of the other wind box; the wind box provided with the air inlet is also provided with an air outlet, and the wind box provided with the air outlet is also provided with an air inlet, so that the material boxes on one side of the wind box provided with the air inlet can unload the materials which have been dried in the material boxes, and then fill the material boxes with new materials to be dried, and then hot air is injected from the air inlet of the wind box provided with the air outlet, the hot air passes through the wind boxes in turn, and finally is discharged from the air outlet of the wind box provided with the air inlet.

2. The material dewatering apparatus of claim 1, wherein The device further comprises: one or more air inlet valves connected to the air inlets of the wind boxes, which are used to open or close the air inlets of the wind boxes.

3. The material dewatering apparatus of claim 1, wherein The device further comprises: one or more air outlet valves connected to the air outlets of the wind boxes, which are used to open or close the air outlets of the wind boxes.

4. The material dewatering apparatus of claim 1, wherein The device further comprises: one or more internal air valves provided in the wind boxes, which are used to connect the interiors of the wind boxes or isolate the interiors of the wind boxes into two or more parts which are not connected with each other.

5. The material dehydration device according to claim 1, wherein: the wind boxes and the material boxes are partially or entirely connected by shared walls, that is, the side walls and the air vents on the side walls are shared.

6. The material dewatering apparatus of claim 1, wherein The device further comprises: one or more temperature and / or humidity monitoring devices provided in the wind boxes.

7. The material dewatering apparatus of claim 1, wherein The device further comprises: material conveying devices connected to the air inlets and / or air outlets of the material boxes.

8. A material dewatering apparatus characterized by, The device comprises: at least three wind boxes, the side walls of which are provided with air vents, at least one of the at least three wind boxes is provided with an air inlet, and at least one of the remaining wind boxes is provided with an air outlet; at least two material boxes, which are provided with an air inlet and an air outlet, and the side walls of which are provided with air vents; the material boxes are respectively arranged between the wind boxes, the interior of each wind box and the interior of the material box adjacent to the wind box are connected through the air vents on the side walls of the wind box and the side walls of the material box; so that hot air can be injected from the air inlet of one of the wind boxes, the hot air passes through the at least two material boxes in turn, and finally is discharged from the air outlet of the other wind box. The air box with the air inlet is also provided with an air outlet, and the air box with the air outlet is also provided with an air inlet, so that the material box on one side of the air box with the air inlet injects hot air from the air inlet of the air box with the air outlet after the material in the material box has been dried and is filled with new material to be dried.

9. The material dewatering apparatus of claim 8, wherein, Further comprising: One or more material box partitions are provided with air vents, and the material box partitions separate the material box into two or more secondary material boxes, and the interiors of the separated secondary material boxes are connected through the air vents provided on the partitions.

10. The material dehydration device according to claim 9, wherein: One or more material boxes are provided with the material box partitions.

11. The material dewatering apparatus of claim 9, wherein Further comprising: The secondary material boxes are provided with material inlets, and the secondary material boxes are also provided with material outlets.

12. The material dehydration device according to any one of claims 8-11, wherein: One or more air boxes are provided with air inlets and air outlets at the same time.

13. The material dewatering apparatus of any one of claims 8-11, wherein, Further comprising: One or more air inlets are provided with air inlet valves, and the air inlet valves are used to open or close the air inlets of the air boxes.

14. The material dewatering apparatus of any one of claims 8-11, wherein, Further comprising: One or more air outlets are provided with air outlet valves, and the air outlet valves are used to open or close the air outlets of the air boxes.

15. The material dewatering apparatus of claim 12, wherein, Further comprising: The air inlets and air outlets of one or more air boxes provided with air inlets and air outlets at the same time are combined into air inlets and outlets, and when air is injected into the air boxes through the air inlets and outlets, the air inlets and outlets are used as air inlets, and when air is discharged from the air boxes through the air inlets and outlets, the air inlets and outlets are used as air outlets.

16. The material dewatering apparatus of claim 15, wherein Further comprising: One or more air inlets and outlets are provided with air inlet and outlet valves, and the air inlet and outlet valves are used to open or close the air inlets and outlets.

17. The dewatering apparatus of any of claims 8-11, 16, wherein, Further comprising: One or more air boxes are provided with internal air valves, and the internal air valves are used to connect the interiors of the air boxes or isolate the interiors of the air boxes into two or more parts that are not connected.

18. The material dehydration device according to any one of claims 8-11 and 16, wherein: The air boxes and the material boxes are partially or entirely connected in a common wall manner, and the common wall connection refers to sharing side walls and air vents on the side walls.

19. The apparatus of any of claims 8-11, 16, wherein, Further comprising: One or more air boxes are provided with temperature and / or humidity monitoring devices.

20. The apparatus of any of claims 8-11, 16, wherein, Further comprising: The material inlets and / or material outlets of the material boxes are connected with material conveying devices.

21. The material dehydration device according to claim 20, wherein: The material conveying devices are screw conveying devices.

22. A method of dewatering material based on the material dewatering apparatus of claim 1, characterized in that, Including the following steps: First step: Ensure that the N material boxes involved in the drying operation are filled with materials to be dehydrated, N is greater than or equal to 2, select one of the two air boxes as the air inlet box, and the other as the air outlet box, so that the air inlet of the air inlet box is open, and the air outlet is closed, and the air inlet of the air outlet box is closed, and the air outlet is open, inject hot air into the air inlet box through the air inlet, and maintain the first time period of drying operation, which completes the drying of the materials in the M material boxes, M is less than N; The second step is to unload the materials in the M material boxes that have completed dehydration at a set time, ensure that the N material boxes involved in the drying operation are filled with materials to be dehydrated, N is greater than or equal to 2, and at least one of the N material boxes contains materials that have been affected by hot air but have not completely completed dehydration in the previous drying operation time period; use the air box used as the air outlet box in the previous drying operation time period as the air inlet box, so that the air inlet of the air box is open, and the air outlet is closed, and use the air box used as the air inlet box in the previous drying operation time period as the air outlet box, and make its air inlet closed and air outlet open; Inject hot air into the air inlet box of this step, and maintain the second time period of drying operation, which completes the drying of the materials in the M material boxes, M is greater than or equal to 1 and M is less than or equal to N; The fourth step is to repeatedly repeat the second step operation, and the number of M and N can be changed.

23. The method of dewatering a material of claim 22, wherein, Also includes: After the end of the first drying time period or the second drying time period, the hot air is cooled to an appropriate temperature for the dehydrated materials to cool down.

24. A method of dewatering material based on the material dewatering apparatus of any one of claims 8-21, characterized in that, The following steps are included: The first step is to ensure that the corresponding material box is filled with materials to be dehydrated; arbitrarily select one air box provided with an air inlet as an air inlet box, and arbitrarily select one air box provided with an air outlet as an air outlet box, while ensuring that the hot air injected into the air inlet box passes through at least two materials of the material box before being discharged from the air outlet of the air outlet box; Open the air inlet of the air box used as the air inlet box, close the air outlet of the air box, and close the air inlets of all the remaining air boxes, open the air outlet of the air box used as the air outlet box, close the air inlet of the air box, and close the air outlets of all the remaining air boxes; preset the first drying time period, ensure that the materials in M material boxes complete dehydration within the first drying time period, M is greater than or equal to 1, and ensure that at least one of the materials in the material box passed by the hot air cannot completely complete dehydration within the first drying time period; according to the order of hot air passing through the material box, the material boxes that complete dehydration within the first drying time period are set as No. 1 to No. M material boxes in turn, and the first material box after the No. M material box is set as No. M+1 material box; Inject hot air of appropriate temperature and air pressure into the air inlet of the air inlet box through the air inlet, and maintain the first drying time period of drying operation; Second step: unload the material in the M material boxes which have finished drying at the appropriate time; make sure the corresponding material boxes are filled with the material to be dehydrated; reselect a wind box with an air inlet as the air inlet wind box and reselect a wind box with an air outlet as the air outlet wind box, make sure the hot air injected into the air inlet wind box selected in this step is discharged from the air outlet of the air outlet wind box selected in this step after passing through the material in at least two material boxes, and the hot air must pass through the material in the M+1 material box; open the air inlet of the wind box used as the air inlet wind box in this step, close the air outlet of the wind box, and close the air inlets of all the remaining wind boxes; open the air outlet of the wind box used as the air outlet wind box in this step, close the air inlet of the wind box, and close the air outlets of all the remaining wind boxes; preset a second drying time period to ensure that the material in the M material boxes is dehydrated in the second drying time period, M is greater than or equal to 1, and at least one of the material boxes through which the hot air passes cannot completely dehydrate the material in the material box in the second drying time period; according to the order of the hot air passing through the material boxes, reselect the material boxes in which the material is dehydrated in the second drying time period as the first to Mth material boxes in turn, and according to the order of the hot air passing through the material boxes, select the first material box after the Mth material box as the M+1th material box; inject hot air of appropriate temperature and air pressure into the air inlet of the air inlet wind box selected in this step, and maintain the second drying time period for drying operation; Third step: repeatedly repeat the second step, and the number of M can be changed.

25. The method of claim 24, wherein the material is a food product. Also includes: After the first drying time period or the second drying time period ends, reduce the temperature of the hot air to an appropriate temperature to perform cooling operation for the dehydrated material.

Images