Hot air energy-saving circulating device for drying raw materials

Abstract

The utility model belongs to the technical field of drying equipment, and particularly relates to a hot air energy-saving circulating device for drying raw materials, which comprises a shell, an air cabin is arranged inside the bottom end of the shell, a plurality of through holes are arranged at the top end of the air cabin, and a plurality of rotating rollers are rotatably connected inside the bottom end of the shell. The top end of the shell is fixedly connected with an air heater, the output end of the air heater is fixedly connected with a conveying pipe, the top end of the rear side of the shell is fixedly connected with a heat exchanger, the output end of the heat exchanger is fixedly connected with a first circulating pipe, and air outlet holes are formed in the front side and the rear side of the top end of the shell correspondingly. And the output end of the heat exchanger is fixedly connected with a circulating pipeline II. By means of the air heater, the air cabin, the conveying pipe, the heat exchanger, the air outlet hole, the first circulating pipeline, the second circulating pipeline, the pipe shaped like the Chinese character'wang 'and the air inlet head, up-down circulating flowing of hot air is achieved, efficient and energy-saving drying of raw materials is improved, and energy consumption is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of drying equipment technology, specifically to a hot air energy-saving circulation device for drying raw materials. Background Technology

[0002] With the increasing prominence of energy issues and the continuous improvement of environmental protection requirements, developing a high-efficiency, energy-saving, and environmentally friendly hot air circulation device for raw material drying is of significant practical importance. This device can effectively utilize hot air circulation, improve thermal energy utilization, reduce energy consumption and exhaust emissions, while ensuring the uniformity and quality of raw material drying, thus meeting the requirements of modern industrial production for energy conservation, environmental protection, and high efficiency.

[0003] The existing technology has the following defects or problems: Existing technology, publication number CN222783892U, discloses a hot air circulation energy-saving drying device. It includes a circulating heating and air supply mechanism, a hot air circulation mechanism, and an adjustable drying air outlet mechanism. The circulating heating and air supply mechanism is combined with the hot air circulation mechanism. The air supply pipe on the outside of the hot air circulation mechanism is combined with the air inlet pipe of the adjustable drying air outlet mechanism. The circulating heating and air supply mechanism includes an air inlet and return control chamber, a combustion heating chamber, and a hot air supply chamber connected in sequence. The hot air circulation mechanism includes a hot air supply pipe and a return air circulation pipe, and the hot air supply pipe is connected to the hot air supply pipe of the hot air supply chamber. The advantages of this utility model include: The air circulation structure of this utility model, which combines a circulating heating and air supply mechanism, a hot air circulation mechanism, and an adjustable drying air outlet mechanism, can effectively circulate the hot air during the drying process, achieving energy saving, emission reduction, and environmental protection effects. It also has the advantages of reasonable structural design, convenient operation and debugging, stable and rapid hot air delivery, good practicality, and strong versatility.

[0004] During operation, conventional hot air drying devices often consume a lot of energy, with a large amount of heat being discharged into the environment with the exhaust gas, resulting in energy waste and increased production costs. However, in existing technologies, some hot air energy-saving circulation devices for drying raw materials have insufficient sealing, causing hot air to leak out from the gaps, resulting in heat loss. This forces the hot air blower to increase its power to compensate for the temperature, significantly increasing energy consumption and weakening the energy-saving effect.

[0005] It should be noted that the above content falls within the inventor's technical knowledge and does not necessarily constitute prior art. Utility Model Content

[0006] In view of the shortcomings of the existing technology, this utility model provides a hot air energy-saving circulation device for drying raw materials, which solves the existing problems.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a hot air energy-saving circulation device for drying raw materials, comprising a shell, an air chamber inside the bottom of the shell, multiple through holes at the top of the air chamber, multiple rotating rollers rotatably connected inside the bottom of the shell, a hot air blower fixedly connected to the top of the shell, a conveying pipe fixedly connected to the output end of the hot air blower, a heat exchanger fixedly connected to the rear top of the shell, a circulation pipe I fixedly connected to the output end of the heat exchanger, air outlets respectively opened inside the front and rear sides of the top of the shell, a circulation pipe II fixedly connected to the output end of the heat exchanger, a kingpin tube fixedly connected to the bottom end of the circulation pipe II, multiple air inlets fixedly connected to the bottom end of the kingpin tube, crossbars fixedly connected inside the left and right sides of the shell, and sealing components respectively provided on the left and right sides of the shell.

[0008] As a preferred embodiment of this utility model, each of the two sealing components includes a fixing ring, an electric push rod is fixedly connected inside the fixing ring, a protrusion is fixedly connected to the output end of the electric push rod, a sealing door is fixedly connected to the right side of the protrusion, and slide strips are fixedly connected to the front and rear sides of the sealing door, respectively. Slide grooves are respectively opened inside the front and rear sides of the housing.

[0009] As a preferred embodiment of this utility model, the bottom end of the conveying pipe is fixedly connected to the inner wall of the front bottom end of the housing, and the bottom end of the circulation pipe is fixedly connected to the inner wall of the front top end of the housing.

[0010] As a preferred embodiment of this utility model, the second circulation pipe is externally fixedly connected to the inner wall of the top of the shell, and observation windows are fixedly connected to the tops of the two crossbars respectively.

[0011] As a preferred embodiment of this utility model, the top end of the king-shaped tube is fixedly connected to the bottom end of the second circulation pipe, and the outside of the king-shaped tube is in contact with the inner wall of the shell.

[0012] As a preferred embodiment of this utility model, the two fixed rings are respectively fixedly connected to the outer sides of the top left and right sides of the housing, and the front and rear ends of the two sealing doors are respectively in contact with the front and rear ends of the housing.

[0013] As a preferred embodiment of this utility model, the outer surfaces of the plurality of slide bars are respectively slidably connected to the inner wall of the slide groove.

[0014] Compared with the prior art, this utility model provides an energy-saving hot air circulation device for drying raw materials, which has the following beneficial effects:

[0015] 1. A hot air energy-saving circulation device for drying raw materials, comprising a hot air blower, an air chamber, a conveying pipe, a heat exchanger, an air outlet, a first circulation pipe, a second circulation pipe, a kingpin, and an air inlet. After the device is started, the hot air blower begins to work, heating the air into hot air. The hot air enters the interior of the shell through the conveying pipe and can be evenly distributed from the air chamber into the drying area. As the drying process proceeds, the humid air containing a large amount of heat enters the heat exchanger through the air outlets on the front and rear sides of the top and the first circulation pipe. The air, preheated by the heat exchanger, enters from the top of the drying area through the second circulation pipe, the kingpin, and the air inlet, realizing the vertical circulation of hot air, thereby improving the high-efficiency and energy-saving drying of raw materials and significantly reducing energy consumption while ensuring drying quality.

[0016] 2. A hot air energy-saving circulation device for drying raw materials, comprising an electric push rod, a protrusion, a fixed ring, a sealing door, a sliding strip, and a sliding groove. When the operator starts the electric push rod, after receiving a control signal, the electric push rod drives the protrusion connected to it to move towards the fixed ring, and the sealing door also moves towards the fixed ring. During the movement, the sliding strips on the front and rear sides of the sealing door slide along the sliding grooves inside the front and rear sides of the housing. The cooperation between the sliding groove and the sliding strip plays a guiding and stabilizing role, ensuring that the sealing door will not deviate or shake during the opening process. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the conveying pipe structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the circulation pipe of this utility model;

[0020] Figure 4 This is a schematic diagram of the sealing door structure of this utility model.

[0021] In the diagram: 1. Shell; 2. Air chamber; 3. Through hole; 4. Rotating roller; 5. Hot air blower; 6. Conveying pipe; 7. Heat exchanger; 8. Circulation pipe one; 9. Air outlet; 10. Circulation pipe two; 11. King-shaped pipe; 12. Air inlet head; 13. Crossbar; 14. Fixing ring; 15. Electric push rod; 16. Protrusion; 17. Sealing door; 18. Sliding strip; 19. Slide groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1

[0024] Please see Figure 1-4 In this embodiment: a hot air energy-saving circulation device for drying raw materials includes a shell 1, an air chamber 2 is opened inside the bottom end of the shell 1, multiple through holes 3 are opened at the top end of the air chamber 2, multiple rotating rollers 4 are rotatably connected inside the bottom end of the shell 1, a hot air blower 5 is fixedly connected to the top end of the shell 1, a conveying pipe 6 is fixedly connected to the output end of the hot air blower 5, the bottom end of the conveying pipe 6 is fixedly connected to the inner wall of the front bottom end of the shell 1, a heat exchanger 7 is fixedly connected to the rear top end of the shell 1, a circulation pipe 8 is fixedly connected to the output end of the heat exchanger 7, the bottom end of the circulation pipe 8 is fixedly connected to the inner wall of the front top end of the shell 1, and the top end of the shell 1... Air vents 9 are provided on the front and rear sides respectively. The inlet and outlet ends of the heat exchanger 7 are fixedly connected to the second circulation pipe 10. The outer side of the second circulation pipe 10 is fixedly connected to the inner wall of the top of the shell 1. The bottom end of the second circulation pipe 10 is fixedly connected to the king-shaped tube 11. The top end of the king-shaped tube 11 is fixedly connected to the bottom end of the second circulation pipe 10. The outer side of the king-shaped tube 11 is in contact with the inner wall of the shell 1. The bottom end of the king-shaped tube 11 is fixedly connected to multiple air inlets 12. The left and right sides of the shell 1 are fixedly connected to the interior of the two crossbars 13 respectively. The top ends of the two crossbars 13 are fixedly connected to observation windows respectively. Sealing components are provided on the left and right sides of the shell 1 respectively.

[0025] In this embodiment, after the device is started, the hot air blower 5 begins to work, heating the air into hot air. The hot air enters the interior of the housing 1 through the delivery pipe 6, first reaching the air chamber 2. Since the top of the air chamber 2 has multiple through holes 3, the hot air can evenly enter the drying area from the air chamber 2 and fully contact the raw materials placed on the rotating roller 4. During the heat transfer process, the hot air transfers heat to the raw materials, causing the moisture in the raw materials to evaporate and form humid air. As the drying process proceeds, the humid air containing a large amount of heat rises inside the housing 1 and enters the heat exchanger 7 through the air outlets 9 on the front and rear sides of the top and the circulation pipe 8. In the heat exchanger 7, the humid air... The air exchanges heat with fresh or recirculated air introduced from the outside. The humid air is cooled after absorbing its own heat, and some of the moisture in it condenses and is discharged. The air that participates in the heat exchange is preheated. The air that is preheated by the heat exchanger 7 enters from the top of the drying area through the circulation pipe 10, the king-shaped pipe 11 and the air inlet 12, realizing the vertical circulation of hot air. Throughout the process, the rotating roller 4 rotates continuously, driving the raw materials to move, so that all parts of the raw materials can fully contact the hot air and ensure uniform drying. At the same time, the operator can observe the drying status of the raw materials through the observation window and adjust the device according to the actual situation.

[0026] Example 2

[0027] like Figure 1 - Figure 4 As shown, the two sealing components each include a fixing ring 14. The adjacent sides of the two fixing rings 14 are fixedly connected to the outer sides of the top left and right sides of the housing 1. An electric push rod 15 is fixedly connected inside the fixing ring 14. A protrusion 16 is fixedly connected to the output end of the electric push rod 15. A sealing door 17 is fixedly connected to the right side of the protrusion 16. The front and rear ends of the two sealing doors 17 are in contact with the front and rear ends of the housing 1, respectively. Sliding strips 18 are fixedly connected to the front and rear sides of the sealing doors 17, respectively. The outer sides of the multiple sliding strips 18 are slidably connected to the inner wall of the sliding groove 19, and the sliding grooves 19 are respectively opened inside the front and rear sides of the housing 1.

[0028] In this embodiment, when raw materials need to be placed into the drying device or removed after drying, the operator controls the electric push rod 15 to extend it. When the electric push rod 15 extends, it pushes the protrusion 16 away from the fixing ring 14, thereby moving the sealing door 17 towards the opening of the housing 1. As the sealing door 17 moves, the slide bar 18 continues to slide within the slide groove 19 until the front and rear ends of the sealing door 17 are in close contact with the front and rear ends of the housing 1. At this point, the sealing door 17 completely seals the openings on both sides of the housing 1, isolating the internal space of the drying device from the external environment. Because the sealing door 17 is in close contact with the housing 1, and the cooperation between the slide bar 18 and the slide groove 19 reduces gaps, it effectively prevents hot air leakage during the drying process, ensuring hot air circulation and temperature stability inside the housing 1, achieving energy-saving drying. Simultaneously, the electric push rod 15 can adjust its thrust according to actual needs to ensure the sealing performance of the sealing door 17 when closed, maintaining a good seal even if the internal pressure changes during the drying process.

[0029] The working principle and usage process of this utility model are as follows: After the device is started, the hot air blower 5 starts to work, heating the air into hot air. The hot air enters the interior of the shell 1 through the delivery pipe 6 and first reaches the air chamber 2. Since the top of the air chamber 2 has multiple through holes 3, the hot air can enter the drying area evenly from the air chamber 2. As the drying process proceeds, the humid air containing a large amount of heat enters the heat exchanger 7 through the air outlet 9 opened on the front and rear sides of the top and the circulation pipe 1. In the heat exchanger 7, the humid air exchanges heat with the fresh air or circulating air introduced from the outside. The air that has been preheated by the heat exchanger 7 enters from the top of the drying area through the circulation pipe 2 10, the king-shaped pipe 11 and the air inlet 12, realizing the vertical circulation of hot air. When raw materials need to be placed into the drying device or removed after drying, the operator starts the electric push rod 15. After receiving the control signal, the electric push rod 15 begins to retract, driving the protrusion 16 connected to it to move towards the fixed ring 14. The sealing door 17 also moves towards the fixed ring 14. During the movement, the sliding strips 18 on the front and rear sides of the sealing door 17 slide along the sliding grooves 19 inside the front and rear sides of the housing 1. The cooperation between the sliding grooves 19 and the sliding strips 18 plays a guiding and stabilizing role, ensuring that the sealing door 17 will not deviate or shake during the opening process, and can smoothly open the openings on both sides of the housing 1, making it convenient for the operator to load and unload materials.

[0030] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A hot air energy saving circulation device for drying raw materials, characterized by: The device includes a shell (1), with an air chamber (2) inside the bottom end of the shell (1), and multiple through holes (3) at the top end of the air chamber (2). Multiple rotating rollers (4) are rotatably connected inside the bottom end of the shell (1). A hot air blower (5) is fixedly connected to the top end of the shell (1), and a conveying pipe (6) is fixedly connected to the output end of the hot air blower (5). A heat exchanger (7) is fixedly connected to the top rear side of the shell (1), and a circulation pipe is fixedly connected to the output end of the heat exchanger (7). Pipe 1 (8), the top and rear sides of the shell (1) are respectively provided with air outlets (9), the output and inlet ends of the heat exchanger (7) are fixedly connected to the second circulation pipe (10), the bottom end of the second circulation pipe (10) is fixedly connected to the king-shaped pipe (11), the bottom end of the king-shaped pipe (11) is fixedly connected to multiple air inlets (12), the left and right sides of the shell (1) are respectively fixedly connected to the crossbars (13), and the left and right sides of the shell (1) are respectively provided with sealing components.

2. The hot air energy-saving circulating device for drying raw materials according to claim 1, characterized in that: The two sealing components each include a fixing ring (14), an electric push rod (15) is fixedly connected inside the fixing ring (14), a protrusion (16) is fixedly connected to the output end of the electric push rod (15), a sealing door (17) is fixedly connected to the right side of the protrusion (16), and slide strips (18) are fixedly connected to the front and rear sides of the sealing door (17), and slide grooves (19) are respectively opened inside the front and rear sides of the housing (1).

3. The hot air energy-saving circulating device for raw material drying according to claim 1, characterized in that: The bottom end of the conveying pipe (6) is fixedly connected to the inner wall of the front bottom end of the housing (1), and the bottom end of the circulation pipe (8) is fixedly connected to the inner wall of the front top end of the housing (1).

4. The hot air energy-saving circulating device for raw material drying according to claim 1, characterized in that: The external of the second circulation pipe (10) is fixedly connected to the inner wall of the top of the housing (1), and the tops of the two crossbars (13) are respectively fixedly connected to observation windows.

5. The hot air energy-saving circulating device for raw material drying according to claim 1, characterized in that: The top end of the king-shaped tube (11) is fixedly connected to the bottom end of the second circulation pipe (10), and the outside of the king-shaped tube (11) is in contact with the inner wall of the shell (1).

6. The hot air energy-saving circulating device for raw material drying according to claim 2, characterized in that: The two fixing rings (14) are fixedly connected to the outer sides of the top left and right sides of the housing (1) respectively, and the front and rear ends of the two sealing doors (17) are in contact with the front and rear ends of the housing (1) respectively.

7. The hot air energy-saving circulating device for drying raw materials according to claim 2, characterized in that: The exterior of the plurality of slide bars (18) are respectively slidably connected to the inner wall of the slide groove (19).

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