Pre-drying machine

Abstract

The utility model relates to the technical field of drying devices, in particular to a pre-drying machine which comprises a shell and a stirring device. The shell comprises a supporting part and a cover plate, the cover plate is fixedly connected with the supporting part, and the cover plate is provided with a feeding port and a discharging port; the stirring device comprises a driving assembly, a first connecting rod and a second connecting rod; the driving assembly comprises a rotating wheel, a first gear and a second gear, the rotating wheel and the first gear are located at the two ends of the supporting part in the long edge direction correspondingly and rotationally connected with the supporting part, the second gear is meshed with the first gear, the first connecting rod and the second connecting rod are located in an inner cavity of the supporting part, and one end of the first connecting rod is fixedly connected with the rotating wheel. The first connecting rod is rotationally connected with the supporting part, and the second connecting rod is rotationally connected with the supporting part and fixedly connected with the second gear; a first blade is fixed to the first connecting rod, and a second blade is fixed to the second connecting rod. The material pre-drying device has the effect that materials can be fully pre-dried.

Description

Technical Field

[0001] The present application relates to the technical field of drying devices, and in particular to a predryer. Background Art

[0002] A predryer is a device used for preliminary drying of materials. It pre-treats the moisture inside the materials, reduces the moisture content, and allows the materials to be in a certain loose state. The predryer's outlet is usually equipped with a subsequent conveyor belt for use in conjunction with the pre-dried materials to transfer the pre-dried materials to subsequent related workstations.

[0003] In the related technology, the predryer consists of a shell, a heat source and a stirring rod. The heat source enters the inner cavity of the shell together with the material. The stirring rod is provided with a large stirring blade, which can stir the material in the shell, thereby reducing the moisture content inside the material and completing the predrying operation.

[0004] With respect to the above-mentioned related technologies, the stirring shaft inside the shell is relatively large and is easily limited by the size of the external shell, thereby affecting the pre-drying effect of the material and failing to fully pre-dry the material. Utility Model Content

[0005] In order to be able to fully pre-dry the material, the present application provides a pre-dryer.

[0006] This application provides a pre-dryer, which adopts the following technical solution:

[0007] A predryer comprises a shell and a stirring device; the shell comprises a supporting portion and a cover plate, the cover plate is fixedly connected to the supporting portion, and the cover plate is provided with a feed port and a discharge port;

[0008] The stirring device comprises a driving assembly, a first connecting rod and a second connecting rod;

[0009] The driving assembly includes a rotating wheel, a first gear, and a second gear. The rotating wheel and the first gear are respectively located at two ends of the long side direction of the support, and are both rotatably connected to the support portion. The second gear is meshed with the first gear. The first connecting rod and the second connecting rod are both located in the inner cavity of the support portion. One end of the first connecting rod is fixedly connected to the rotating wheel, and the other end is fixedly connected to the first gear. The first connecting rod is rotatably connected to the support portion, and the second connecting rod is rotatably connected to the support portion and fixedly connected to the second gear.

[0010] A plurality of first blades are fixed to the first connecting rod, and a plurality of second blades are fixed to the second connecting rod.

[0011] By adopting the above technical solution, the cover plate is fixed to the support part, and at the same time, the operator puts the material to be pre-dried into the inner cavity of the support part through the feed port. At this time, the rotating wheel drives the first connecting rod to rotate, and the first connecting rod drives the first gear to rotate. The first gear and the second gear are meshed, thereby driving the second gear to rotate. The second gear and the second connecting rod are fixedly connected, so that the second connecting rod rotates, and then the first connecting rod and the second connecting rod are driven to rotate synchronously through the rotating wheel, and then the first blade and the second blade are driven to rotate, so that the material can be stirred and turned in a smaller space, thereby ensuring the pre-drying efficiency and effect of the material.

[0012] Optionally, a plurality of the first blades are provided, and the plurality of the first blades are arranged in a spiral shape along the first connecting rod; a plurality of the second blades are provided, and the plurality of the second blades are arranged in a spiral shape along the second connecting rod; and the first blades and the second blades are arranged crosswise.

[0013] By adopting the above technical solution, multiple first blades and second blades are provided and are all arranged in a spiral manner, thereby ensuring the turning and stirring effect of the material. The spiral arrangement can effectively prevent collision between the first blade and the second blade, thereby ensuring the safety between the first blade and the second blade.

[0014] Optionally, both the first connecting rod and the second connecting rod are provided with sleeves arranged at intervals along the axial direction, two adjacent sleeves are fixedly connected, and the sleeve is fixedly connected to the first connecting rod and / or the second connecting rod;

[0015] The sleeve is provided with a first through slot and a second through slot, wherein the first through slot is used to accommodate the first blade, and the second through slot is used to accommodate the second blade.

[0016] By adopting the above technical solution, the setting of the sleeve can provide stable protection for the first connecting rod and the second connecting rod. At the same time, the setting of the first through groove and the second through groove can provide installation space for the first blade and the second blade to stir the material in the support part.

[0017] Optionally, a positioning block and a positioning groove are respectively provided at both ends of the sleeve, the positioning block is fixedly connected to the sleeve, and the positioning groove is used to accommodate the positioning block.

[0018] By adopting the above technical solution, a positioning block and a positioning groove are respectively provided at both ends of the sleeve, and the positioning groove is used to accommodate the positioning block. At this time, it is convenient for the operator to connect two adjacent sleeves. At the same time, the positioning block abuts against the side wall of the positioning groove. At this time, the sleeve can rotate with the first connecting rod and the second connecting rod.

[0019] Optionally, a filter screen is provided at the discharge port, and the filter screen is fixedly connected to the cover plate.

[0020] By adopting the above technical solution, the filter screen can filter the material inside the support part, so that the material stuck together due to high water content cannot pass through the filter screen and leave the support part, so the pre-drying operation continues to dry the material.

[0021] Optionally, the cover plate is provided with a through hole, a fixing frame and an observation plate are provided in the through hole, the fixing frame and the cover plate are fixedly connected, the observation plate and the fixing frame are fixedly connected, and the observation plate is provided with an observation port.

[0022] By adopting the above technical solution, the through hole provides support for the installation of the fixed frame, and the fixed block provides support for the installation of the observation plate. The operator can understand the pre-drying condition of the material inside the support part through the observation port on the observation plate.

[0023] Optionally, the stirring device further comprises a first fixed cover, the first fixed cover is sleeved on the rotating wheel, and the rotating wheel and the first fixed cover are rotatably connected;

[0024] Both ends of the first connecting rod and the second connecting rod are passed through the first fixing cover, and are rotatably connected to the first fixing cover.

[0025] By adopting the above technical solution, the first fixed cover provides support for the installation of the rotating wheel, drives the first connecting rod and the second connecting rod to rotate, and prevents the operator from accidentally touching the rotating wheel to cause danger.

[0026] Optionally, the stirring device further comprises a second fixed cover, the second fixed cover is sleeved on the first gear and the second gear, and the first gear and the second gear are both rotatably connected to the second fixed cover;

[0027] Both ends of the first connecting rod and the second connecting rod are passed through the second fixing cover, and are rotatably connected to the second fixing cover.

[0028] By adopting the above technical solution, the second fixed cover can provide support for the installation of the first gear and the second gear, and prevent the operator from being injured by the two gears, causing personal harm.

[0029] In summary, the present application includes at least one of the following beneficial technical effects:

[0030] 1. By providing the first connecting rod and the second connecting rod, the first blade and the second blade can be driven to rotate, so as to pre-dry and stir the material inside the support part, thereby improving the pre-drying effect of the material;

[0031] 2. By setting a driving assembly, only one motor can be used to drive the two connecting rods to rotate, so as to stir the materials inside the support part;

[0032] 3. By setting up a filter, it is possible to prevent the non-pre-dried materials in the support part from entering the subsequent workstations. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present application;

[0034] Figure 2 is a schematic diagram of the stirring device structure;

[0035] Figure 3 is a schematic diagram of the cross-sectional structure of the first fixed cover;

[0036] Figure 4 It is a schematic diagram of the cross-sectional structure of the second fixed cover.

[0037] 1. Support structure; 11. First support frame; 12. Second support frame; 13. Positioning member; 2. Shell; 21. Support portion; 22. Support frame; 23. Cover plate; 24. Feed inlet; 25. Discharge outlet; 26. Filter screen; 27. Fixed frame; 28. Observation plate; 3. Stirring device; 31. First fixed cover; 32. Second fixed cover; 33. Drive assembly; 331. First motor; 332. Belt; 333. Rotating wheel; 334. First gear; 335. Second gear; 34. First connecting rod; 35. Second connecting rod; 36. First blade; 37. Second blade; 38. Sleeve; 381. Positioning block; 382. Positioning groove; 383. First through groove; 384. Second through groove. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1-4 This application is described in further detail.

[0039] The embodiments of the present application disclose a predryer.

[0040] Reference Figure 1 and Figure 2 The predryer includes a supporting structure 1, a shell 2 and a stirring device 3.

[0041] Reference Figure 1 The support structure 1 includes a first support frame 11 and a second support frame 12. In this embodiment, the first support frame 11 and the second support frame 12 are both hollow rectangular frames, and the long sides of the first support frame 11 and the second support frame 12 are perpendicular to each other. The first support frame 11 and the second support frame 12 are fixedly connected by welding. The first support frame 11 and the second support frame 12 are both provided with reinforcing rods, which are fixedly connected to the first support frame 11 and / or the second support frame 12 by welding.

[0042] Reference Figure 1The outer walls of the first support frame 11 and the second support frame 12 are provided with a plurality of positioning members 13 arranged at intervals along the long side direction, and the positioning members 13 are fixedly connected to the first support frame 11 and / or the second support frame 12 by welding. The bottom wall of the positioning member 13 is penetrated with a positioning hole along the vertical direction. In this embodiment, the positioning hole is used to accommodate a positioning bolt, which is passed through the positioning hole and fixed to the ground.

[0043] Reference Figure 1 The shell 2 includes a support portion 21. In this embodiment, the support portion 21 is preferably a U-shaped seat with an opening facing upward. The long side direction of the support portion 21 is parallel to the long side direction of the first support frame 11. Two support frames 22 are provided at the bottom of the support portion 21. The support frames 22 are vertically arranged, and the top walls of the support frames 22 are provided with accommodating grooves for accommodating the support portion 21. The top of the support frame 22 is fixedly connected to the support portion 21 by welding, and the bottom is fixedly connected to the first support frame 11 by welding.

[0044] Reference Figure 1 The housing 2 further comprises a cover plate 23, which is preferably a rectangular plate, and the long side direction of the cover plate 23 is parallel to the long side direction of the first support frame 11. The cover plate 23 is fixed to the top wall of the support portion 21 by means of positioning bolts. A feed port 24 and a discharge port 25 are provided through the top wall of the cover plate 23 in the vertical direction, and the feed port 24 and the discharge port 25 are respectively located at the two ends of the long side direction of the cover plate 23.

[0045] Reference Figure 1 The inner cavity of the discharge port 25 is provided with a filter screen 26, the filter screen 26 is arranged horizontally, and the filter screen 26 is fixedly connected to the cover plate 23 by screws.

[0046] Reference Figure 1 The top wall of the cover plate 23 is provided with two through holes in the direction of the line between the feed port 24 and the discharge port 25, and a fixing frame 27 and an observation plate 28 are provided at the through holes. The fixing frame 27 is vertically arranged and fixedly connected to the cover plate 23 by welding. The observation plate 28 is horizontally arranged, and an observation port is penetrated through the top wall of the observation plate 28 in the vertical direction. The observation plate 28 is fixedly connected to the fixing frame 27 by screws.

[0047] Reference Figure 1 The stirring device 3 includes a first fixed cover 31 and a second fixed cover 32, which are respectively located at the two ends of the long side direction of the support portion 21. The first fixed cover 31 is fixedly connected to the second support frame 12 by screws, and the second fixed cover 32 is fixedly connected to the first support frame 11 by screws.

[0048] Reference Figure 1 , Figure 3 and Figure 4The stirring device 3 also includes a driving assembly 33, which includes a first motor 331, a belt 332 and two rotating wheels 333. In this embodiment, the first motor 331 is preferably a servo motor. The housing of the first motor 331 is fixedly connected to the second support frame 12 by screws. The two rotating wheels 333 are both located in the inner cavity of the first fixed cover 31 and are respectively located at both ends of the first fixed cover 31. The rotating wheel 333 is rotatably connected to the first fixed cover 31 through a rotating shaft. The rotating wheel 333 close to the first motor 331 is coaxially fixedly connected to the output shaft of the first motor 331 by a key connection. The belt 332 is sequentially wound around the two rotating wheels 333, and the belt 332 and the rotating wheel 333 are meshed.

[0049] Reference Figure 1 , Figure 3 and Figure 4 The driving assembly 33 also includes a first gear 334 and a second gear 335. The first gear 334 and the second gear 335 are both located in the inner cavity of the second fixed cover 32, and the first gear 334 and the second gear 335 are both rotatably connected to the second fixed cover 32 through a rotating shaft, and the first gear 334 and the second gear 335 are meshed with each other.

[0050] Reference Figure 1 , Figure 3 and Figure 4 The stirring device 3 further includes a first connecting rod 34 and a second connecting rod 35, wherein the long side direction of the connecting rod is parallel to the long side direction of the support portion 21, one end of the first connecting rod 34 is inserted through the support portion 21 and the first fixed cover 31, and is fixedly connected to the belt 332 wheel not connected to the first motor 331 by a key connection, and the first connecting rod 34 is rotatably connected to the support portion 21 and the first fixed cover 31 by a bearing connection, and the other end is inserted through the support portion 21 and the second fixed cover 32, and is meshed with the first gear 334 by a key connection, and the first connecting rod 34 is rotatably connected to the support portion 21 and the second fixed cover 32 by a bearing connection. One end of the second connecting rod 35 is inserted through the support portion 21 and the second fixed cover 32, and is meshed with the second gear 335 by a key connection, and the second connecting rod 35 is rotatably connected to the support portion 21 and the second fixed cover 32 by a bearing connection, and the other end is rotatably connected to the support portion 21 by a bearing connection.

[0051] Reference Figure 1 , Figure 2 and Figure 4 A plurality of first blades 36 are provided along the long side direction of the first connecting rod 34, and the plurality of first blades 36 are arranged in a spiral along the long side direction of the first connecting rod 34, and the first blades 36 are fixedly connected to the first connecting rod 34 by screws;

[0052] Reference Figure 1 , Figure 2 and Figure 4 A plurality of second blades 37 are provided along the long side direction of the second connecting rod 35, and the plurality of second blades 37 are arranged in a spiral manner along the long side direction of the second connecting rod 35. The second blades 37 are fixedly connected to the second connecting rod 35 by screws. In this embodiment, the size of the second blade 37 is smaller than the first blade 36, and the first blade 36 and the second blade 37 are cross-arranged.

[0053] Reference Figure 1 , Figure 2 and Figure 4 The first connecting rod 34 and the second connecting rod 35 are both provided with a sleeve 38. In this embodiment, a plurality of sleeves 38 are provided and are arranged in sequence along the long side direction of the first connecting rod 34 and / or the second connecting rod 35. A plurality of positioning blocks 381 are provided at one end of the sleeve 38. The plurality of positioning blocks 381 are uniformly distributed circumferentially along the axial direction of the sleeve 38. The positioning blocks 381 are fixedly connected to the sleeve 38 by welding. A plurality of positioning grooves 382 are provided at the other end of the sleeve 38. The positioning grooves 382 are used to accommodate the positioning blocks 381 of adjacent sleeves 38. The sleeve 38 is fixedly connected to the first connecting rod 34 and / or the second connecting rod 35 by key connection.

[0054] Reference Figure 1 , Figure 2 and Figure 4 The sleeve 38 installed on the first connecting rod 34 is provided with a first through groove 383, and the first through groove 383 is used to accommodate the first blade 36; the sleeve 38 installed on the second connecting rod 35 is provided with a second through groove 384, and the second through groove 384 is used to accommodate the second blade 37.

[0055] The implementation principle of the predryer in the embodiment of the present application is: the first motor 331 drives the first connecting rod 34 to rotate through the cooperation between the rotating wheel 333 and the belt 332, and the first connecting rod 34 drives the second connecting rod 35 to rotate through the engagement between the first gear 334 and the second gear 335, so that the first blade 36 and the second blade 37 stir the material in the support part 21 and perform predrying operation.

[0056] The arrangement of the sleeve 38 can provide installation support for the first blade 36 and the second blade 37 , and can also provide protection for the first connecting rod 34 and the second connecting rod 35 .

[0057] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. Predryer, characterized by: It comprises a shell (2) and a stirring device (3); the shell (2) comprises a supporting portion (21) and a cover plate (23); the cover plate (23) and the supporting portion (21) are fixedly connected, and the cover plate (23) is provided with a feed port (24) and a discharge port (25); The stirring device (3) comprises a driving assembly (33), a first connecting rod (34) and a second connecting rod (35); The driving assembly (33) comprises a rotating wheel (333), a first gear (334), and a second gear (335); the rotating wheel (333) and the first gear (334) are respectively located at two ends of the long side direction of the supporting portion (21), and are both rotatably connected to the supporting portion (21); the second gear (335) and the first gear (334) are meshed with each other; the first connecting rod (34) and the second connecting rod (35) are both located in the inner cavity of the supporting portion (21); one end of the first connecting rod (34) is fixedly connected to the rotating wheel (333), and the other end is fixedly connected to the first gear (334); the first connecting rod (34) is rotatably connected to the supporting portion (21); the second connecting rod (35) is rotatably connected to the supporting portion (21), and is fixedly connected to the second gear (335); The first connecting rod (34) is fixed with a first blade (36), and the second connecting rod (35) is fixed with a second blade (37).

2. The predryer according to claim 1, characterized in that: There are a plurality of the first blades (36), which are arranged in a spiral shape along the first connecting rod (34); there are a plurality of the second blades (37), which are arranged in a spiral shape along the second connecting rod (35); and the first blades (36) and the second blades (37) are arranged crosswise.

3. The predryer according to claim 1, characterized in that: The first connecting rod (34) and the second connecting rod (35) are both provided with sleeves (38) arranged at intervals along the axial direction, two adjacent sleeves (38) are fixedly connected, and the sleeve (38) is fixedly connected to the first connecting rod (34) and / or the second connecting rod (35); The sleeve (38) is provided with a first through groove (383) and a second through groove (384), wherein the first through groove (383) is used to accommodate the first blade (36), and the second through groove (384) is used to accommodate the second blade (37).

4. The predryer according to claim 3, characterized in that: A positioning block (381) and a positioning groove (382) are respectively provided at both ends of the sleeve (38); the positioning block (381) is fixedly connected to the sleeve (38), and the positioning groove (382) is used to accommodate the positioning block (381).

5. The predryer according to claim 1, characterized in that: A filter screen (26) is provided at the discharge port (25), and the filter screen (26) and the cover plate (23) are fixedly connected.

6. The predryer according to claim 5, characterized in that: The cover plate (23) is provided with a through hole, a fixing frame (27) and an observation plate (28) are provided in the through hole, the fixing frame (27) and the cover plate (23) are fixedly connected, the observation plate (28) and the fixing frame (27) are fixedly connected, and the observation plate (28) is provided with an observation port.

7. The predryer according to claim 1, characterized in that: The stirring device (3) further comprises a first fixed cover (31), wherein the first fixed cover (31) is sleeved on the rotating wheel (333), and the rotating wheel (333) and the first fixed cover (31) are rotatably connected; Both ends of the first connecting rod (34) and the second connecting rod (35) are passed through the first fixed cover (31), and are rotatably connected to the first fixed cover (31).

8. The predryer according to claim 1, characterized in that: The stirring device (3) further comprises a second fixed cover (32), wherein the second fixed cover (32) is sleeved on the first gear (334) and the second gear (335), and the first gear (334) and the second gear (335) are both rotatably connected to the second fixed cover (32); Both ends of the first connecting rod (34) and the second connecting rod (35) are passed through the second fixed cover (32), and are rotatably connected to the second fixed cover (32).

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