Energy-saving drying equipment

Abstract

The invention provides energy-saving drying equipment which comprises a drying box, an air supply system, a supporting frame, a disc, a driving mechanism, an outer gear, a driving gear, a rotating shaft and a motor. The cement drying device is provided with the rotatable disc, undried cement is placed in the disc, and the disc rotates, so that rotation of the cement is realized, the cement can be uniformly heated everywhere, the drying efficiency of the cement is improved, the heating time of the cement is shortened, and waste of resources is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of cement detection, and in particular to energy-saving drying equipment. Background Art

[0002] In recent years, the construction industry has developed rapidly, and all kinds of high-rise buildings have sprung up. Among building materials, cement is an indispensable and important role. The composition of cement on the market varies greatly. In order to determine its performance, it is necessary to conduct relevant tests on cement samples. During the test, the cement samples need to be dried, and a drying oven is generally used to dry the samples; however, the drying ovens currently used for drying cement samples on the market have a single structure and function. The cement samples are only placed statically on the built-in platform of the box, which cannot ensure that the cement samples are heated evenly, and the drying efficiency is relatively low; at the same time, in order to ensure the drying of cement everywhere, the cement is generally heated for a long time; and the cement near the hot air outlet dries faster, so it is a waste of resources if it is heated all the time. Summary of the invention

[0003] The purpose of the present invention is to design an energy-saving drying device to solve the problems raised by the background technology. To achieve the above purpose, the present invention provides the following technical solution: comprising a drying box and an air supply system connected to the drying box, and also comprising a support frame adjustable and installed inside the drying box, a disc rotatably connected to the support frame, and a driving mechanism for driving the disc to rotate, wherein the driving mechanism comprises a driving gear rotatably connected to the inside of the support frame and meshing with the outer gear of the disc, a rotating shaft meshing with the inner gear ring of the driving gear and rotatably connected to the inside of the drying box, and a motor having an output shaft fixedly connected to the rotating shaft is provided on the top of the drying box.

[0004] Furthermore, the inner gear ring is meshed with the outer gear ring on the outer circle of the rotating shaft while the inner gear ring can slide along the axis of the outer gear ring. A plurality of support rods are fixedly connected to the interior of the drying box. The support frame includes a top plate and a bottom plate fixedly connected by connecting columns. The connecting columns are slidably connected to the support rods and the connecting columns can be adjustably connected to the support rods. The driving gear is located between the top plate and the bottom plate.

[0005] Furthermore, a plurality of limit gears meshing with the external gear are rotatably connected between the top plate and the bottom plate, and the driving gear meshes with one of the limit gears.

[0006] Furthermore, the disc includes a circular plate and a bracket fixed to the bottom of the circular plate, the bracket is fixed with an annular plate rotatably connected to the top plate and the bottom plate, the outer circle of the annular plate is provided with the external gear, there is a gap between the circular plate and the through hole of the top plate, and the annular plate is located between the top plate and the bottom plate.

[0007] Furthermore, the driving gear is connected to the disc via a transition wheel.

[0008] Furthermore, grooves are provided on the bottom plate and the top plate, a circle of universal balls are fixed to the top and bottom of the annular plate, the movable spherical surfaces of the universal balls are located inside the grooves and tangent to the inner walls of the grooves, and there are gaps between the bottom plate, the top plate and the annular plate.

[0009] Furthermore, the circular plate is a heat-conducting thin plate, a cross plate is fixedly connected to the through hole of the bottom plate, the cross plate is provided with a through groove, a cable tie passes through the through groove to fix the jet pipe to the bottom of the cross plate, the jet pipe is connected to the air supply system through a hose, and the jet pipe is provided with a plurality of jet heads with openings facing the bottom of the circular plate.

[0010] Furthermore, three support rods are provided, and together with the rotating shaft, they are symmetrically located on the four corners of the inner wall of the drying box; a plurality of holes are distributed in an array on the support rod, a plane is provided on the connecting column passing through the top plate, an internal threaded column is provided on the connecting column, a bolt is threadedly connected to the internal threaded column, and a limiting rod inserted into the hole is fixedly connected to the end of the bolt.

[0011] Furthermore, the bolt is a butterfly bolt.

[0012] Furthermore, the disc is provided with two pieces.

[0013] Furthermore, the air supply system includes a heating chamber connected to the interior of the drying box through an air inlet hole group, an air outlet chamber connected to the interior of the drying box through an air outlet hole group, and an air filter chamber whose two ends are respectively connected to the heating chamber and the air outlet chamber, the heating chamber is located at the back of the drying box, and the heating chamber and the air outlet chamber are symmetrically distributed on both sides of the drying box.

[0014] Furthermore, an air inlet box is provided inside the heating chamber, the air inlet hole group connects the air inlet box and the drying box, a heating cylinder is fixedly connected inside the heating chamber, the air outlet of the heating cylinder is connected to the air inlet box through a first air equalizing pipe network, and the air inlet of the heating cylinder is connected to the air filter chamber.

[0015] Furthermore, an air outlet box is provided inside the air outlet chamber, the air outlet hole group connects the air outlet box and the drying box, the air outlet box is connected to the air outlet pump through a second air equalizing pipe network, and the air outlet pipe of the air outlet pump is connected to the air filter chamber.

[0016] Furthermore, the air filter chamber includes several dust removal chambers connected to the air outlet chamber in sequence, each dust removal chamber has the same internal structure, and a detachable dust screen is provided inside the dust removal chamber, and the interior of the dust screen is connected to the next dust removal chamber.

[0017] Furthermore, a threaded hole is provided on the dust removal chamber, an annular cover plate threadedly connected to the threaded hole is provided at the end of the dustproof screen, and a vent hole for gas circulation is provided inside the annular cover plate.

[0018] Furthermore, ribs are provided inside the vent hole.

[0019] Furthermore, a dustproof net bag is provided on the outer ring of the dustproof partition net inside the dust removal chamber close to the heating chamber.

[0020] Furthermore, the diameter of the mesh of the dustproof screen inside the dust removal chamber close to the air outlet chamber gradually increases.

[0021] Furthermore, the dust removal chamber near the heating chamber is connected to the isolation chamber, and the top of the isolation chamber is connected to the drying chamber filled with soda lime and the dust collection chamber filled with dust collection cotton blocks in sequence through a mesh plate. The dust collection chamber is connected to the air inlet of the air pump through an air suction pipe, and the air outlet of the air intake pump is connected to the air inlet of the heating cylinder.

[0022] Furthermore, the air intake pipe is provided with a safety pipe connected to the outside, and the safety pipe is provided with a valve.

[0023] Compared with the prior art, the present invention has the following beneficial effects: the present invention is provided with a rotatable disc, undried cement is placed in the disc, and the disc rotates, thereby realizing the rotation of the cement, so that the cement can be heated evenly everywhere, thereby improving the drying efficiency of the cement, reducing the heating time of the cement, and preventing the waste of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention;

[0027] Figure 3is a cross-sectional schematic diagram of the air filter chamber;

[0028] Figure 4 It is a partial cross-sectional schematic diagram of the driving gear connection;

[0029] Figure 5 is a cross-sectional schematic diagram of the connection of the connecting column;

[0030] Figure 6 This is a schematic diagram of the structure after the top plate in the disk is hidden;

[0031] Figure 7 This is a schematic diagram of the disk viewed from above.

[0032] Among them: 1. Safety tube; 2. Drying box; 3. Opening and closing door; 4. Observation window; 5. Disc; 6. Motor; 7. Air outlet group; 8. Support rod; 9. Connecting column; 10. Support frame; 11. Rotating shaft; 12. Air filter chamber; 13. Air intake pump; 14. Heating cylinder; 15. First air equalization network; 16. Heating chamber; 17. Air intake box; 18. Air outlet chamber; 19. Air outlet box; 20. Dust suction chamber; 21. Drying chamber; 22. Isolation chamber; 23. Dust removal Chamber; 24. Dustproof screen; 25. Annular cover plate; 26. Rib plate; 27. External gear; 28. Limiting gear; 29. ​​Driving gear; 30. Dust removal end cover; 31. External gear ring; 32. Bracket; 33. Internal gear ring; 34. Rotating drum; 35. Limiting rod; 36. Bolt; 37. Internal threaded column; 38. Plane; 39. Bottom plate; 40. Annular plate; 41. Cable tie; 42. Top plate; 43. Round plate; 44. Injection head; 45. Injection pipe; 46. Cross plate. DETAILED DESCRIPTION

[0033] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0034] Example: Please refer to Figure 1-7, an energy-saving drying device, comprising a drying box 2 provided with an opening and closing door 3 and an air supply system connected to the drying box 2, the opening and closing door 3 is provided with a handle and an observation window 4, which is convenient for observing the internal situation; the present invention also includes a support frame 10 adjustable and installed inside the drying box 2, a disc 5 rotatably connected to the support frame 10 and a driving mechanism for driving the disc 5 to rotate, the driving mechanism comprising a driving gear 29 rotatably connected to the inside of the support frame 10 and meshing with an outer gear 27 of the disc 5, and an inner gear ring 33 meshing with the driving gear 29 and rotatably connected The rotating shaft 11 inside the drying box 2, the top of the drying box 2 is provided with a motor 6 whose output shaft is fixedly connected to the rotating shaft 11, wherein the rotating connection method can be in the form of a bearing connection. When the cement is put into the disc 5, the motor 6 is started, the rotating shaft 11 rotates, thereby driving the driving gear 29 and the outer gear 27 to rotate, thereby driving the disc 5 to rotate, and then realizing the rotation of the cement, so that the cement can be evenly heated everywhere, thereby improving the drying efficiency of the cement; reducing the heating time of the cement and preventing the waste of resources.

[0035] In this embodiment, the inner gear ring 33 is meshed with the outer gear ring 31 on the outer circle of the rotating shaft 11, and the inner gear ring 33 can slide along the axis of the outer gear ring 31. A plurality of support rods 8 are fixedly connected to the interior of the drying box 2. The support frame 10 includes a top plate 42 and a bottom plate 39 fixedly connected by a connecting column 9. The connecting column 9 is slidably connected to the support rod 8 and the connecting column 9 is adjustably connected to the support rod 8. The driving gear 29 is located between the top plate 42 and the bottom plate 39. Four limiting gears 28 meshing with the outer gear 27 are rotatably connected between the top plate 42 and the bottom plate 39. The driving gear 29 meshes with one of the limiting gears 28 to ensure the stable rotation of the disc 5. The disc 5 includes a circular plate 43 and a plate fixed to The bracket 32 ​​at the bottom of the circular plate 43 is fixedly connected with an annular plate 40 rotatably connected to the top plate 42 and the bottom plate 39. An outer gear 27 is provided on the outer circle of the annular plate 40. There is a gap between the through hole of the circular plate 43 and the top plate 42. The annular plate 40 is located between the top plate 42 and the bottom plate 39. Therefore, when the rotating shaft 11 rotates, the outer gear ring 31 will rotate, thereby rotating the inner gear ring 33, and then rotating the rotating shaft 11, thereby driving the limit gear 28 to rotate, thereby realizing the rotation of the outer gear 27, thereby realizing the rotation of the annular plate 40, the bracket 32 ​​and the circular plate 43, and finally realizing the rotation of the cement, wherein the driving gear 29 and the limit gear 28 The rotational connection with the support frame 10 is achieved in the form of a shaft and a bearing connection; grooves are provided on the bottom plate 39 and the top plate 42, and a circle of universal balls are fixedly connected to the top and bottom of the annular plate 40, and the movable spherical surfaces of the universal balls are all located inside the grooves and tangent to the inner walls of the grooves. There is a gap between the bottom plate 39, the top plate 42 and the annular plate 40, thereby realizing the rotational connection of the disc 5, wherein the universal ball adopts a common universal ball with a base, which will not be described in detail here; wherein the circular plate 43 is a heat-conducting thin plate, such as a stainless steel plate, and a cross plate 46 is fixedly connected to the through hole of the bottom plate 39, and the cross plate 46 is provided with a through groove, and the cable tie 41 passes through the through groove to fix the jet pipe 45 to the cross At the bottom of the plate 46, the jet pipe 45 is connected to the air supply system through a hose, and the jet pipe 45 is provided with a plurality of jet heads 44 with openings facing the bottom of the circular plate 43, thereby ensuring that the bottom of the cement is fully heated, thereby ensuring that the cement as a whole is evenly heated; in addition, the rotating drum 34 in the driving gear 29 is rotatably connected to the bottom plate 39 and the top plate 42, and the rotatable connection can be in the form of a bearing connection, and the inner gear ring 33 is arranged inside the rotating drum 34; in addition, the top of the rotating drum 34 and the bottom of the bottom plate 39 are respectively fixed with a dust removal end cover 30, and the dust removal strip of the dust removal end cover 30 is inserted between the tooth gaps of the outer gear ring 31, thereby preventing the inner gear ring 33 from getting stuck during movement.

[0036] In this embodiment, three support rods 8 are provided, and together with the rotating shaft 11, they are symmetrically located at the four corners of the inner wall of the drying box 2; a plurality of holes are arranged in an array on the support rod 8, a plane 38 is provided on the connecting column 9 penetrating the top plate 42, an internal thread column 37 is provided on the connecting column 9, a bolt 36 is threadedly connected to the internal thread column 37, and a limit rod 35 inserted into the hole is fixedly connected to the end of the bolt 36, so that the height of the support frame 10 can be adjusted, thereby adapting to the drying of cement at different heights; the bolt 36 is a butterfly bolt 36, which is easy to operate; there are two discs 5, and at the same time, the support frame 10, the driving gear 29, etc. are equipped with two groups, so as to achieve The two discs 5 rotate evenly, thereby achieving synchronous drying of multiple pieces of cement; the air supply system includes a heating chamber 16 connected to the inside of the drying box 2 through an air inlet hole group, an air outlet chamber 18 connected to the inside of the drying box 2 through an air outlet hole group 7, and an air filter chamber 12 whose two ends are respectively connected to the heating chamber 16 and the air outlet chamber 18, the heating chamber 16 is located at the back of the drying box 2, and the heating chamber 16 and the air outlet chamber 18 are symmetrically distributed on both sides of the drying box 2, thereby achieving the circulation of hot air and saving waste of resources; an air inlet box 17 is provided inside the heating chamber 16, the air inlet hole group connects the air inlet box 17 with the drying box 2, and the interior of the heating chamber 16 is fixedly connected to the heating chamber 16. There is a heating cylinder 14, the air outlet of the heating cylinder 14 is connected to the air inlet box 17 through the first air equalization pipe network 15, the air inlet of the heating cylinder 14 is connected to the air filter chamber 12, the air outlet chamber 18 is provided with an air outlet box 19, the air outlet hole group 7 is connected to the air outlet box 19 and the drying box 2, the air outlet box 19 is connected to the air outlet pump through the second air equalization pipe network, the air outlet pipe of the air outlet pump is connected to the air filter chamber 12, wherein the heating cylinder 14 is provided with an electric heating wire inside for heating the gas, the heated gas will enter the drying box 2 through the air inlet box 17 and the air inlet hole group, and enter the air outlet box 19 through the air outlet hole group 7, the first air equalization pipe network 15 includes an array distribution The three first transverse tubes on the air inlet box 17, the first vertical tube connects the three first transverse tubes, the side of the first vertical tube facing away from the first transverse tube is connected to the two second transverse tubes, a second vertical tube is arranged between the two second transverse tubes, the side of the second vertical tube facing away from the second transverse tube is connected to the air outlet of the heating tube 14 through the third transverse tube, thereby realizing the uniform flow of hot air into the drying box 2, and in addition, the second gas equalizing pipe network has the same structure as the first gas equalizing pipe network 15, thereby realizing the uniform exhaust of hot air and ensuring the uniform flow of hot air inside the drying box 2; in addition, the jet pipe 45 is connected to the second vertical pipe on the first gas equalizing pipe network 15 through a hose, thereby realizing the supply of hot air in the jet pipe 45.

[0037] In the present embodiment, the air filter chamber 12 comprises a plurality of dust removal chambers 23 which are sequentially connected with the air outlet chamber 18, and the internal structure of each dust removal chamber 23 is the same. A detachable dust screen 24 is provided inside the dust removal chamber 23, and the inside of the dust screen 24 is connected with the next dust removal chamber 23, so that the dust volatilized by the cement during the drying process of the drying box 2 is convenient for cleaning and collecting the dust; a threaded hole is provided on the dust removal chamber 23, and an annular cover plate 25 which is threadedly connected with the threaded hole is provided at the end of the dust screen 24, and a vent hole for gas circulation is provided inside the annular cover plate 25, and a rib plate 26 is provided inside the vent hole, wherein the diameter of the dust screen 24 is smaller than the diameter of the vent hole, so as to facilitate the installation of the dust screen 24, and the outer ring of the dust screen 24 inside the dust removal chamber 23 close to the heating chamber 16 is provided with a dust screen bag, so as to improve the dustproof quality; The mesh diameter of the dustproof screen 24 inside the dust removal chamber 23 near the air outlet chamber 18 gradually increases, thereby achieving step-by-step filtration of dust and improving the filtration quality of dust; the dust removal chamber 23 near the heating chamber 16 is connected to the isolation chamber 22, and the top of the isolation chamber 22 is connected to the drying chamber 21 filled with soda lime and the dust collection chamber 20 filled with dust collection cotton blocks in sequence through a mesh plate, and the dust collection chamber 20 is connected to the air inlet of the air intake pump 13 through an air intake pipe, and the air outlet of the air intake pump 13 is connected to the air inlet of the heating cylinder 14, wherein soda lime is beneficial to absorbing water vapor volatilized during the cement drying process, and the dust collection cotton blocks are beneficial to preventing soda lime powder from entering the pipeline; in addition, a safety pipe 1 connected to the outside is provided on the air intake pipe, and a valve is provided on the safety pipe 1, thereby ensuring the stability of the gas circulation and replenishing the internal air pressure of the drying box 2 in time.

[0038] The working principle of this embodiment is as follows: when cement is placed in the circular plate 43, the motor 6 is started, the rotating shaft 11 is rotated, thereby driving the outer gear ring 31, the inner gear ring 33, the driving gear 29, the limit gear 28 and the outer gear 27 to rotate, thereby realizing the rotation of the annular plate 40 and the bracket 32, thereby realizing the rotation of the circular plate 43, and then realizing the rotation of the cement; and in this process, the air intake pump 13 and the air outlet pump are started, and the air flow will be in the heating cylinder 14, the first air equalization pipe network 15, the air intake box 17, the drying box 2, the outlet The air circulates among the air box 19, the second air equalizing network, the air outlet pump, the dust removal chamber 23, the isolation chamber 22, the drying chamber 21, the dust suction chamber 20, the air intake pump 13, and the heating cylinder 14, and is dusted by the dustproof screen 24 in the dust removal chamber 23, and is dried by the soda lime in the drying chamber 21; therefore, the present invention allows the cement to rotate during the heating process, so that the cement can be evenly heated everywhere, thereby improving the drying efficiency of the cement; reducing the heating time of the cement and preventing the waste of resources.

[0039] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an element centered thereon. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an element centered thereon. The terms "upper", "lower", "left", "right", "front", "rear" and similar expressions used herein are for illustrative purposes only.

[0040] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An energy-saving drying device, comprising a drying box (2) and an air supply system connected to the drying box (2), characterized in that: The drying box (2) further comprises a support frame (10) which is adjustably mounted inside the drying box (2), a disc (5) which is rotatably connected to the support frame (10), and a driving mechanism for driving the disc (5) to rotate, wherein the driving mechanism comprises a driving gear (29) which is rotatably connected to the inside of the support frame (10) and meshes with an outer gear (27) of the disc (5), and a rotating shaft (11) which meshes with an inner gear ring (33) of the driving gear (29) and is rotatably connected to the inside of the drying box (2). A motor (6) having an output shaft fixedly connected to the rotating shaft (11) is provided at the top of the drying box (2).

2. The energy-saving drying equipment according to claim 1 is characterized in that: The inner gear ring (33) is meshed with the outer gear ring (31) on the outer circle of the rotating shaft (11) and can slide along the axis of the outer gear ring (31). A plurality of support rods (8) are fixedly connected to the interior of the drying box (2). The support frame (10) includes a top plate (42) and a bottom plate (39) fixedly connected by a connecting column (9). The connecting column (9) is slidably connected to the support rod (8) and the connecting column (9) can be adjustably connected to the support rod (8). The driving gear (29) is located between the top plate (42) and the bottom plate (39).

3. The energy-saving drying equipment according to claim 2 is characterized in that: A plurality of limit gears (28) meshing with the external gear (27) are rotatably connected between the top plate (42) and the bottom plate (39), and the driving gear (29) meshes with one of the limit gears (28).

4. The energy-saving drying equipment according to claim 2 is characterized in that: The disc (5) comprises a circular plate (43) and a bracket (32) fixed to the bottom of the circular plate (43); the bracket (32) is fixed to an annular plate (40) rotatably connected to the top plate (42) and the bottom plate (39); the outer circle of the annular plate (40) is provided with the external gear (27); there is a gap between the circular plate (43) and the through hole of the top plate (42); and the annular plate (40) is located between the top plate (42) and the bottom plate (39).

5. The energy-saving drying equipment according to claim 4 is characterized in that: The bottom plate (39) and the top plate (42) are both provided with grooves, the top and bottom of the annular plate (40) are both fixedly connected with a circle of universal balls, the movable spherical surfaces of the universal balls are all located inside the grooves and tangent to the inner walls of the grooves, and there is a gap between the bottom plate (39), the top plate (42) and the annular plate (40).

6. The energy-saving drying equipment according to claim 4, characterized in that: The circular plate (43) is a heat-conducting thin plate. A cross plate (46) is fixedly connected to the through hole of the bottom plate (39). The cross plate (46) is provided with a through groove. The cable tie (41) passes through the through groove to fix the jet pipe (45) to the bottom of the cross plate (46). The jet pipe (45) is connected to the air supply system through a hose. The jet pipe (45) is provided with a plurality of jet heads (44) with openings facing the bottom of the circular plate (43).

7. The energy-saving drying equipment according to claim 2 is characterized in that: The support rods (8) are provided with three and are symmetrically located together with the rotating shaft (11) at the four corners of the inner wall of the drying box (2); a plurality of holes are arranged in an array on the support rods (8); a plane (38) is provided on the connecting column (9) penetrating the top plate (42); an internal thread column (37) is provided on the connecting column (9); a bolt (36) is threadedly connected to the internal thread column (37); and a limiting rod (35) inserted into the hole is fixedly connected to the end of the bolt (36).

8. The energy-saving drying equipment according to claim 1, characterized in that: The air supply system comprises a heating chamber (16) connected to the interior of the drying box (2) through an air inlet hole group, an air outlet chamber (18) connected to the interior of the drying box (2) through an air outlet hole group (7), and an air filter chamber (12) whose two ends are respectively connected to the heating chamber (16) and the air outlet chamber (18); the heating chamber (16) is located at the back of the drying box (2), and the heating chamber (16) and the air outlet chamber (18) are symmetrically distributed on both sides of the drying box (2).

9. The energy-saving drying equipment according to claim 8, characterized in that: An air inlet box (17) is provided inside the heating chamber (16), and the air inlet hole group connects the air inlet box (17) and the drying box (2). A heating tube (14) is fixedly connected inside the heating chamber (16), and the air outlet of the heating tube (14) is connected to the air inlet box (17) through a first air equalizing pipe network (15), and the air inlet of the heating tube (14) is connected to the air filter chamber (12).

10. The energy-saving drying equipment according to claim 8, characterized in that: An air outlet box (19) is provided inside the air outlet chamber (18); the air outlet hole group (7) connects the air outlet box (19) and the drying box (2); the air outlet box (19) is connected to the air outlet pump via a second air equalizing pipe network; and the air outlet pipe of the air outlet pump is connected to the air filter chamber (12).

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