Air blast drying box capable of being heated uniformly

Abstract

The utility model relates to an air blast drying box capable of being heated uniformly. The inner box body is arranged inside the outer box body; the air inlet cavity is formed between the outer box body and the inner box body; the shunting strip is fixed at the top of the inner box body; the multiple groups of air inlet holes are formed in the outer side wall of the inner box body; the carrying plate is arranged on the inner side of the inner box body in a height-adjustable mode, and the air volume adjusting assembly is fixed to the top of the outer box body and faces the flow dividing strips. When the uniformly-heated air blast drying box is used for drying materials, hot air enters from the air pipe, firstly makes contact with the flow dividing strips, is divided into two parts under the flow dividing action of the flow dividing strips, flows into the first cavity and the second cavity respectively and finally flows into the inner box body from outside to inside through the air inlet holes, and the materials are uniformly heated in a multi-point air supply mode. And hot air is uniformly conveyed to the internal materials, so that the drying efficiency and the drying effect of the materials are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of drying boxes, and in particular relates to a blast drying box with uniform heating. Background Art

[0002] The drying oven is also known as the "drying oven", which includes a blast drying oven, an electric blast drying oven, an electric constant temperature blast drying oven, a desktop blast drying oven, a vertical blast drying oven, a high temperature blast drying oven, etc. Among them, blast drying is to blow hot air through a circulating fan to ensure the temperature balance in the box, so as to achieve the purpose of drying the items.

[0003] In the utility model patent with application number "202322243055.2" and name "An electric heating blast drying box with adjustable air volume", when drying powdered materials, the electric telescopic rod is controlled to be extended and retracted, so that the telescopic end of the electric telescopic rod pushes the connecting plate to move to the left end of the drying box, and the connecting plate drives the wind shield to slide along the slide groove at the bottom of the air hole through the support rod, so that the wind shield partially blocks the air hole, thereby reducing the air volume entering the drying chamber and preventing solid materials from being blown away. When drying, the wind shield and the wind hole are staggered to maximize the amount of wind entering the drying chamber through the wind hole, thereby improving the drying quality and efficiency of the material; the fan is operated to blow wind to the bottom of the drying box, and the heat generated by the electric heating tube is conducted by the heat conducting rod, thereby increasing the contact area between the wind and the electric heating tube. When the "heated" wind blows to the bottom of the drying chamber, the "heated" wind enters the drying chamber through the adjusted wind hole, thereby drying the material placed on the shelf.

[0004] In the above-mentioned utility model patent, the hot air used for drying flows from bottom to top, and the lower surface of the placement rack is the windward side. The temperature of the windward side of the object rises faster, and its drying speed is often faster, while the other side is backed by the air outlet, so the drying speed is relatively slow. This causes uneven heating of the object, which not only affects the drying efficiency, but may also cause local overheating and damage to the object. Utility Model Content

[0005] The utility model aims to provide a blast drying oven with uniform heating in order to overcome the defects of the existing drying oven that when drying objects, the objects are heated unevenly, which affects the drying efficiency and may also cause local overheating and damage to the objects.

[0006] In order to achieve the above object, the technical solution adopted by the utility model is: a blast drying oven with uniform heating, which comprises:

[0007] An outer box, an inner box disposed inside the outer box, an air inlet cavity formed between the outer box and the inner box, a diverter strip fixed to the top of the inner box, a plurality of air inlet holes provided on the outer side wall of the inner box, a carrier plate arranged inside the inner box with adjustable height, and an air volume adjustment component fixed to the top of the outer box and facing the diverter strip;

[0008] The diverter strip divides the air inlet cavity into a first cavity and a second cavity.

[0009] Optimally, the air volume adjustment assembly includes an air duct fixed to the top of the outer box body and a rotating plate rotatably installed in the air duct;

[0010] When the axis of the rotating plate coincides with the axis of the air duct, the air volume passing through the air duct is minimum;

[0011] When the axis center line of the rotating plate is perpendicular to the axis center line of the air duct, the air volume passing through the air duct is maximum.

[0012] Optimally, the air volume adjustment assembly further includes a baffle fixed to the inner wall of the air duct, a handle connected to the rotating plate, and a limiting unit arranged between the handle and the air duct, wherein the limiting unit is used to limit the running trajectory of the handle.

[0013] Optimally, the limiting unit includes a support frame fixed to the outer wall of the air duct, a limiting groove penetrating the support frame, a limiting column fixed on the handle and inserted into the limiting groove, and anti-slip blocks fixed at both ends of the limiting column, wherein the diameter of the anti-slip blocks is greater than the diameter of the limiting column.

[0014] Optimally, it also includes a fixing rod fixed to the bottom of the inner box, a fixing plate fixed to the top of the fixing rod, an adjusting nut screwed on the fixing rod, and an adjusting hole passing through the carrier plate, wherein the diameter of the adjusting hole is larger than the diameter of the fixing rod, and the carrier plate is abutted against the adjusting nut.

[0015] Optimally, it also includes through holes spaced apart on the carrier plate and a heat-insulating layer disposed within the side wall of the outer box body.

[0016] Optimally, it also includes an outer pad fixed to the bottom of the outer box, an inner pad fixed to the bottom of the inner box, a support plate fixed between the outer box and the inner box, and a circulation fan arranged on the inner box.

[0017] Optimally, the cross section of the diverter strip is tapered.

[0018] Optimally, the baffle is semi-annular.

[0019] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0020] When the utility model is used to dry materials with uniformly heated blast drying box, the height of the carrier plate is properly adjusted according to the size of the materials to be dried, and the current hot air volume is adjusted by the air volume adjustment component. After the preparatory work is completed, the hot air enters from the air duct and first contacts the diverter strip. Under the diverting effect of the diverter strip, the hot air is "split into two" and flows to the first chamber and the second chamber respectively, and finally flows into the inner box body from the outside to the inside through the air inlet hole. The hot air is evenly delivered to the materials inside by the multi-point air supply method, thereby improving the drying efficiency and drying effect of the materials.

[0021] Furthermore, the provision of the thermal insulation layer can reduce the loss and conduction of internal heat, achieve the thermal insulation effect, and improve the drying efficiency of the internal material. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a cross-sectional view of the utility model;

[0023] Figure 2 For this utility model Figure 1 The enlarged view of point A in the middle;

[0024] Figure 3 This is a schematic diagram of the structure of the air volume adjustment component of the utility model;

[0025] Figure 4 For this utility model Figure 3 Right view of;

[0026] Description of reference numerals:

[0027] 1. Outer box body; 2. Outer pad; 3. Insulation layer; 4. Inner box body; 5. Inner pad; 6. Support plate; 7. Diverter strip; 8. Air inlet chamber; 9. Air inlet hole; 10. Fixing rod; 11. Fixing plate; 12. Carrier plate; 13. Adjustment hole; 14. Adjustment nut; 15. Through hole; 16. Circulation fan; 17. Air duct; 18. Baffle; 19. Turn plate; 20. Support frame; 21. Handle; 22. Limiting groove; 23. Limiting column; 24. Anti-drop block. DETAILED DESCRIPTION

[0028] The utility model is further described below in conjunction with the embodiments shown in the accompanying drawings.

[0029] like Figure 1The figure shows a cross-sectional view of a blast drying oven with uniform heating of the utility model, including an outer box body 1, an outer pad 2, an insulation layer 3, an inner box body 4, an inner pad 5, a support plate 6, a diverter strip 7, an air inlet cavity 8, an air inlet hole 9, a fixing rod 10, a fixing plate 11, a carrier plate 12, an adjustment hole 13, an adjustment nut 14, a through hole 15, a circulating fan 16 and an air volume adjustment component. The interior of the outer box body 1 is a hollow structure, which is convenient for placing the inner box body 4 in the outer box body 1. The outer pad 2 is provided at the bottom of the outer box body 1, and the outer pad 2 supports the outer box body 1 away from the workbench to prevent water stains on the workbench from causing rust on the bottom of the outer box body 1.

[0030] The side wall of the outer box 1 is embedded with an insulation layer 3 made of insulation material. When drying the material on the carrier 12, the insulation layer 3 can reduce the loss and conduction of internal heat, achieve the insulation effect, and improve the drying efficiency of the internal material. The insulation material can be a commercially available mineral wool board or polyurethane board.

[0031] The inner box body 4 is arranged inside the outer box body 1, and an inner pad 5 is arranged at the bottom of the inner box body 4. The inner pad 5 supports the inner box body 4 away from the outer box body 1 to ensure that there is no direct contact between the inner box body 4 and the outer box body 1, and to prevent heat from being conducted outward when drying the material on the carrier plate 12.

[0032] An air inlet cavity 8 is formed between the inner box body 4 and the outer box body 1. The external hot air enters the air inlet cavity 8 and is dispersed to both sides under the action of the diverter strips 7, thereby improving the efficiency of material drying while ensuring that the hot air is distributed more evenly, improving the drying effect, and avoiding the situation where the material is excessively dried or not dried.

[0033] The support plate 6 is fixed between the inner box body 4 and the outer box body 1. Figure 1 In the perspective shown, the support plate 6 separates the air inlet chamber 8 from top to bottom. When drying the material on the carrier plate 12, the hot air diffuses from the outside of the inner box 4 to the inside. In order to prevent the hot air from flowing to the bottom of the inner box 4, thereby reducing the efficiency of the hot air, the support plate 6 is used to separate the air inlet chamber 8 from top to bottom.

[0034] The diverter strip 7 is fixed on the top of the inner box 4 and is located below the air volume adjustment component. The cross section of the diverter strip 7 is conical. When the external hot air enters the air volume adjustment component, it will first contact the diverter strip 7. Under the diversion effect of the diverter strip 7, the hot air is "split into two" and flows to the first chamber and the second chamber respectively (such as Figure 1 As shown, the left side of the air inlet chamber 8 is the first chamber, and the right side of the air inlet chamber 8 is the second chamber. The material then enters the inner box 4 through the air inlet hole 9 to dry the material; through multi-point air supply, the hot air is evenly delivered to the material inside, thereby improving the drying efficiency and drying effect of the material).

[0035] The air inlet hole 9 is provided on the outer wall of the inner box body 4 and connects the air inlet cavity 8 and the interior of the inner box body 4. During drying, hot air flows from outside to inside through the air inlet hole 9, ensuring that the hot air is more evenly distributed around the material.

[0036] The fixing rod 10 is vertically fixed to the inner bottom of the inner box 4, and the outer side of the fixing rod 10 is provided with an external thread, and the adjusting nut 14 is screwed on the fixing rod 10. In order to prevent the fixing rod 10 from tilting in the vertical direction, a fixing plate 11 is fixed to the top of the fixing rod 10.

[0037] like Figure 2 As shown, the carrier plate 12 is provided with an adjustment hole 13 that matches the position of the fixing rod 10, and the diameter of the adjustment hole 13 is larger than the diameter of the fixing rod 10, so the height of the carrier plate 12 can be freely adjusted on the fixing rod 10. The adjustment nut 14 is screwed on the fixing rod 10 and abuts against the lower surface of the carrier plate 12, and is used to support the carrier plate 12 after the height adjustment.

[0038] The through hole 15 vertically penetrates the carrier plate 12. When drying the material on the carrier plate 12, hot air can pass through the through hole 15 from bottom to top, thereby improving the drying efficiency of the material. The circulation fan 16 is installed on the outside of the inner box 4 and is connected to the outside through a hose to discharge the internal humid air in time.

[0039] The air volume adjustment component is fixed on the top of the outer box 1 and is located directly above the diverter strip 7, and is used to adjust the air volume entering the inner box 4 to meet the drying requirements of materials in different forms (such as solid particles and powders). Figure 3 , 4 As shown, the air volume adjustment assembly includes an air duct 17 , a baffle 18 , a rotating plate 19 , a support frame 20 , a handle 21 , a limiting groove 22 , a limiting column 23 and an anti-dropping block 24 .

[0040] The air duct 17 is vertically fixed on the top of the outer box 1 and is located directly above the diverter strip 7. The rotating plate 19 is rotatably installed in the air duct 17. By rotating the rotating plate 19, the air volume in the air duct 17 is adjusted to meet the drying requirements of materials of different shapes. Specifically, when the axis of the rotating plate 19 coincides with the axis of the air duct 17, the air volume passing through the air duct 17 is the smallest; when the axis of the rotating plate 19 is perpendicular to the axis of the air duct 17, the air volume passing through the air duct 17 is the largest.

[0041] The baffle 18 is fixed on the inner wall of the air duct 17. When the axis of the rotating plate 19 coincides with the axis of the air duct 17, the rotating plate 19 abuts against one side of the baffle 18. The baffle 18 is semi-annular, and the position of the rotating plate 19 is limited without affecting the air volume.

[0042] The support frame 20 is fixed on the outer wall of the air duct 17, and the handle 21 is rotatably mounted on the support frame 20 and connected to the rotating plate 19. The operator rotates the handle 21 to drive the rotating plate 19 to rotate, thereby completing the adjustment of the air volume.

[0043] The limit groove 22 is opened on the support frame 20, the limit column 23 is fixed on the handle 21 and penetrates the limit groove 22, the limit groove 22 is 1 / 4 ring-shaped, and the two sets of extreme positions of the limit column 23 in the limit groove 22 are the two extreme positions of the rotation of the rotating plate 19 in the air duct 17 (that is, the air volume at one extreme position is the smallest, and the air volume at the other extreme position is the largest).

[0044] The anti-dropout blocks 24 are fixed at both ends of the limiting column 23 , and the diameter of the anti-dropout blocks 24 is larger than the diameter of the limiting column 23 , so as to prevent the anti-dropout blocks 24 from dropping out of the limiting groove 22 .

[0045] The drying principle of the utility model's uniformly heated blast drying oven is as follows:

[0046] First, the height of the carrier plate 12 is appropriately adjusted according to the size of the material to be dried, and then the carrier plate 12 is fixed by adjusting the nut 14, and the current hot air volume is adjusted by turning the handle 21. After the preliminary preparation work is completed, the hot air enters from the air duct 17 and first contacts with the diverter strip 7. Under the diversion effect of the diverter strip 7, the hot air is "divided into two" and flows to the first chamber and the second chamber respectively, and finally flows into the inner box 4 from the outside to the inside through the air inlet hole 9. By means of multi-point air supply, the hot air is evenly delivered to the material inside, thereby improving the drying efficiency and drying effect of the material.

[0047] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A blast drying oven with uniform heating, characterized in that: It includes: An outer box (1), an inner box (4) arranged inside the outer box (1), an air inlet cavity (8) formed between the outer box (1) and the inner box (4), a diverter strip (7) fixed to the top of the inner box (4), a plurality of groups of air inlet holes (9) provided on the outer side wall of the inner box (4), a carrier plate (12) arranged on the inner side of the inner box (4) in a height-adjustable manner, and an air volume adjustment component fixed to the top of the outer box (1) and facing the diverter strip (7); The diverter strip (7) divides the air inlet chamber (8) into a first chamber and a second chamber.

2. The uniformly heated blast drying oven according to claim 1, characterized in that: The air volume adjustment component comprises an air duct (17) fixed on the top of the outer box (1) and a rotating plate (19) rotatably installed in the air duct (17); When the axis center line of the rotating plate (19) coincides with the axis center line of the air duct (17), the air volume passing through the air duct (17) is minimum; When the axis center line of the rotating plate (19) is perpendicular to the axis center line of the air duct (17), the air volume passing through the air duct (17) is maximum.

3. The uniformly heated blast drying oven according to claim 2, characterized in that: The air volume adjustment assembly further comprises a baffle (18) fixed to the inner wall of the air duct (17), a handle (21) connected to the rotating plate (19), and a limiting unit arranged between the handle (21) and the air duct (17), wherein the limiting unit is used to limit the running trajectory of the handle (21).

4. The uniformly heated blast drying oven according to claim 3, characterized in that: The limiting unit comprises a support frame (20) fixed to the outer wall of the air duct (17), a limiting groove (22) penetrating the support frame (20), a limiting column (23) fixed to the handle (21) and inserted into the limiting groove (22), and anti-slip blocks (24) fixed to both ends of the limiting column (23), wherein the diameter of the anti-slip blocks (24) is greater than the diameter of the limiting column (23).

5. The uniformly heated blast drying oven according to claim 1, characterized in that: It also includes a fixing rod (10) fixed to the bottom of the inner box (4), a fixing plate (11) fixed to the top of the fixing rod (10), an adjusting nut (14) screwed on the fixing rod (10), and an adjusting hole (13) penetrating the carrier plate (12), wherein the diameter of the adjusting hole (13) is larger than the diameter of the fixing rod (10), and the carrier plate (12) is disposed against the adjusting nut (14).

6. The uniformly heated blast drying oven according to claim 1, characterized in that: It also includes through holes (15) arranged at intervals on the carrier plate (12) and a heat-insulating layer (3) arranged in the side wall of the outer box body (1).

7. The uniformly heated blast drying oven according to claim 1, characterized in that: It also includes an outer pad (2) fixed to the bottom of the outer box (1), an inner pad (5) fixed to the bottom of the inner box (4), a support plate (6) fixed between the outer box (1) and the inner box (4), and a circulation fan (16) arranged on the inner box (4).

8. The uniformly heated blast drying oven according to claim 1, characterized in that: The cross section of the diverter strip (7) is tapered.

9. The uniformly heated blast drying oven according to claim 3, characterized in that: The baffle (18) is semi-annular.

Images