Mesh belt type dryer with uniform material distribution function

Abstract

The mesh belt type dryer with the uniform material distribution function comprises a drying bin and conveying belts, the conveying belts are arranged at openings in the two faces of the drying bin in a penetrating mode, and bases are fixedly connected to the lower portions of the conveying belts and the lower portion of the drying bin through supporting legs respectively; according to the drying device, the preheating shell internally provided with the material distribution frame is arranged on the right side wall of the drying bin, the induced draft fan is started, the air suction cover connected with the air inlet end of the induced draft fan is promoted to suck hot air in the drying bin, and then the hot air is guided into the main air blowing cover in the preheating shell through the air outlet end of the induced draft fan; materials are conveyed through a conveying belt and are guided into two auxiliary blowing covers of a preheating shell under the action of a pipeline, the materials passing through the preheating shell are preheated, the materials are firstly subjected to preliminary dispersion treatment through an obtuse triangle transition belt and a plurality of dispersion grooves in the inclined face of the transition belt, and a motor is started to drive a transmission rod in a material distribution frame to rotate; and the two groups of dispersion discs with opposite inclination directions on the transmission rod are rotated to perform secondary dispersion treatment on the materials.

Description

Technical Field

[0001] The utility model relates to the technical field of drying machines, in particular to a net-belt drying machine with a uniform material distribution function. Background Art

[0002] Mesh belt dryer is a drying equipment that uses steel mesh as a conveyor belt to transport materials for continuous drying. Generally, the materials dried by mesh belt dryer are bulk materials, which are easy to accumulate on the conveyor belt, resulting in uneven drying of materials and affecting the use of materials.

[0003] After searching, publication number CN217504273U discloses a mesh-belt dryer, which is intended to be provided with a material spreading device to spread the material on the conveyor belt so that the material is heated evenly. Its technical solution is: a mesh-belt dryer, comprising a drying bin, a conveyor belt passing through the drying bin, and a hot air furnace providing hot air to the drying bin. A material spreading device is provided at the input end of the drying bin, and the material spreading device comprises two brackets arranged on both sides of the conveyor belt, and a driving shaft and a driven shaft parallel to each other are provided between the two brackets, and the driving shaft is driven to rotate by a driving module, and at least two driving sprockets are provided on the driving shaft, and a driven sprocket corresponding to the driving sprocket one by one is provided on the driven shaft, and chains are provided on the corresponding driving sprockets and the driven sprockets, and a scraping assembly for spreading the material on the conveyor belt is provided between the two chains.

[0004] In the above scheme, a spreading device is used to disperse the materials on the conveyor belt to achieve the purpose of uniform drying. However, since this type of spreading device does not have a material preheating function, it has an adverse effect on the drying effect of the material.

[0005] To this end, a mesh belt dryer with a uniform material distribution function is proposed, which has the advantages of integrating material preheating and material distribution, thereby solving the problems in the above-mentioned background technology. Utility Model Content

[0006] The utility model aims to solve the shortcomings in the prior art and proposes a net-belt drying machine with a uniform material distribution function.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a mesh belt dryer with uniform material distribution function, comprising a drying bin and a conveyor belt, the openings on both sides of the drying bin are interspersed with conveyor belts, and the bottom of the conveyor belt and the drying bin are respectively fixed with a base through legs, a hot air duct is arranged on the upper inner side of the drying bin, and the hot air duct is connected to an external hot air furnace, a preheating shell is welded on the right side wall of the drying bin corresponding to the conveyor belt, and an induced draft fan is fixedly installed on the top of the preheating shell, the air inlet end of the induced draft fan extends into the drying bin and is connected to an air suction hood, and the air outlet end of the induced draft fan extends into the preheating shell and is connected to an air suction hood. There is a main blowing hood, and the left and right sides of the main blowing hood are connected with auxiliary blowing hoods through pipelines respectively. Two distribution racks are welded on the bottom of the inner side of the preheating shell, and a motor is fixedly installed at one end of each distribution rack, and the output end of the motor passes through the distribution rack and is fixedly connected with a transmission rod, and two groups of dispersion disks are symmetrically installed on the surface of the transmission rod, and the inclination directions of the two groups of dispersion disks are opposite, a number of convex columns are welded on the surface of the dispersion disk of the transmission rod, a transition belt is welded on the right side of the inside of the distribution rack, and a number of material distribution grooves are opened on the side of the transition belt facing the transmission rod, and the bottom surface of the transition belt is in contact with the conveyor belt.

[0008] As a further description of the above technical solution: a through opening is provided on the lower surface of the preheating shell corresponding to the conveyor belt, and the through opening is connected to the opening of the drying bin.

[0009] As a further description of the above technical solution: the cross-section of the transition zone is an obtuse triangle structure, and a plurality of material distribution troughs of the transition zone are all inclined relative to the inclined surface of the transition zone.

[0010] As a further description of the above technical solution: two auxiliary blowing hoods are provided, and the two auxiliary blowing hoods are symmetrical about the vertical center line of the main blowing hood.

[0011] As a further description of the above technical solution: the portion of the hot air duct extending into the interior of the drying bin is provided with a plurality of air outlets at equal intervals, and a plurality of pillars connected to the inner wall of the drying bin are welded to the top surface of the hot air duct.

[0012] As a further description of the above technical solution: support blocks are provided at both ends of the cloth rack, the motor is fixedly mounted on one of the support blocks of the cloth rack, and the transmission rod is connected to the other support block of the cloth rack through a bearing seat.

[0013] The utility model has the following beneficial effects:

[0014] In the utility model, a preheating shell with a material distribution rack installed inside is arranged on the right side wall of the drying bin, and by starting the induced draft fan, the suction hood connected to the air inlet end of the induced draft fan is prompted to absorb the hot air in the drying bin, and then the hot air is introduced into the main blowing hood in the preheating shell through the air outlet end of the induced draft fan, and then introduced into the two auxiliary blowing hoods of the preheating shell under the action of the pipeline, so that the material passing through the preheating shell is preheated. With the transmission of the conveyor belt, the material is firstly dispersed by the transition belt of the obtuse triangle and a plurality of dispersion grooves on the inclined surface thereof, and the transmission rod in the material distribution rack is driven to rotate by starting the motor, so that the two groups of dispersion disks with opposite inclined directions on the transmission rod are rotated, and the material is dispersed for the second time. Compared with the prior art, the material distribution is uniform and the material preheating effect is achieved, thereby ensuring the drying efficiency and uniformity of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the net-belt drying machine with uniform material distribution function of the utility model;

[0016] Figure 2 It is a schematic diagram of the preheating shell structure of the net-belt drying machine with uniform material distribution function of the utility model;

[0017] Figure 3 The utility model is a schematic diagram of the material distribution frame structure of the mesh belt dryer with uniform material distribution function.

[0018] Legend:

[0019] 1. Drying chamber; 2. Conveyor belt; 3. Hot air pipe; 4. Preheating shell; 5. Base; 6. Fabric rack; 7. Induced draft fan; 8. Suction hood; 9. Through port; 10. Main blowing hood; 11. Auxiliary blowing hood; 12. Transmission rod; 13. Transition zone; 14. Material distribution trough; 15. Dispersion disc; 16. Boss; 17. Motor. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] According to an embodiment of the utility model, a mesh belt drying machine with a uniform distribution function is provided.

[0022] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-3As shown, according to the embodiment of the utility model, the net-belt dryer with uniform material distribution function comprises a drying chamber 1 and a conveyor belt 2. The openings on both sides of the drying chamber 1 are interspersed with conveyor belts 2, and the bottom of the conveyor belt 2 and the drying chamber 1 are respectively fixedly connected with a base 5 through legs. A hot air pipe 3 is arranged on the inner upper part of the drying chamber 1, and the hot air pipe 3 is connected to an external hot air furnace. A preheating shell 4 is welded on the right side wall of the drying chamber 1 corresponding to the conveyor belt 2, and an induced draft fan 7 is fixedly installed on the top of the preheating shell 4. The air inlet end of the induced draft fan 7 extends into the drying chamber 1 and is connected with an air suction hood 8, and the air outlet end of the induced draft fan 7 extends into the preheating shell 4 and is connected with a main blowing hood 10. The left and right sides of the main blowing hood 10 are respectively connected with auxiliary blowing hoods 11 through pipelines. Two material distribution racks 6 are welded on the inner bottom of the preheating shell 4, and a motor 17 is fixedly installed at one end of each material distribution rack 6. The output end of the motor 17 passes through the material distribution rack 6 and is fixedly connected with a transmission rod 12. Two groups of dispersion discs 15 are symmetrically installed on the surface of the transmission rod 12, and the inclination directions of the two groups of dispersion discs 15 are opposite. A plurality of protrusions 16 are welded on the surface of the dispersion disc 15 of the transmission rod 12. A transition belt 13 is welded on the right side of the inside of the material distribution frame 6, and a plurality of material distribution grooves 14 are provided on the side of the transition belt 13 facing the transmission rod 12, and the bottom surface of the transition belt 13 is in contact with the conveyor belt 2. For the induced draft fan 7 and the motor 17, the control method of the utility model is to control by manually starting and closing the switch. The wiring diagram of the power element and the provision of power supply belong to the common knowledge in the field, and the utility model is mainly used to protect the mechanical device, so the utility model will not explain the control method and wiring arrangement in detail. The dispersion disc 15 and the protrusion 16 of the transmission rod 12 mainly adopt the rotation of the dispersion disc 15 to achieve the purpose of material dispersion, and the protrusion 16 is used as an extension structure of the dispersion disc 15 to achieve the purpose of full dispersion.

[0023] In one embodiment, a through opening 9 is provided on the lower surface of the preheating shell 4 corresponding to the conveyor belt 2, and the through opening 9 is connected to the opening of the drying bin 1. The through opening 9 is provided to facilitate the passage of materials.

[0024] In one embodiment, the cross-section of the transition zone 13 is an obtuse triangle structure, and the several material distribution troughs 14 of the transition zone 13 are all inclined relative to the inclined surface of the transition zone 13. The transition zone 13 is similar to a road speed bump, and is mainly used to pass the material in the conveying state through the transition zone 13 and be initially dispersed by the several material distribution troughs 14.

[0025] In one embodiment, two auxiliary blow hoods 11 are provided, and the two auxiliary blow hoods 11 are symmetrical about the vertical center line of the main blow hood 10. Through the provision of the main blow hood 10 and the two auxiliary blow hoods 11, the hot air is evenly distributed and the increasing air pressure in the drying chamber 1 is alleviated.

[0026] In one embodiment, a portion of the hot air duct 3 extending into the interior of the drying bin 1 is provided with a plurality of air outlet nozzles at equal intervals, and a plurality of pillars connected to the inner wall of the drying bin 1 are welded on the top surface of the hot air duct 3, so that hot air can be introduced into the drying bin 1 through the arrangement of the air outlet nozzles to achieve the purpose of drying the materials.

[0027] In one embodiment, support blocks are provided at both ends of the cloth rack 6, the motor 17 is fixedly mounted on one of the support blocks of the cloth rack 6, and the transmission rod 12 is connected to the other support block of the cloth rack 6 through a bearing seat, wherein the transition belt 13 of the cloth rack 6 first contacts the material on the conveyor belt 2, and the material then contacts the dispersion plate 15 of the cloth rack 6.

[0028] Working principle:

[0029] When in use, first place the material to be dried on the conveyor belt 2, then start the conveyor belt 2 to convey the material, and then use the hot air furnace to guide the hot air into the hot air pipe 3, so that the hot air pipe 3 guides the hot air into the drying bin 1 to dry the material on the conveyor belt 2. In this process, by starting the induced draft fan 7, the suction hood 8 connected to the air inlet end of the induced draft fan 7 is prompted to absorb the hot air in the drying bin 1, and then the hot air is introduced into the main blowing hood 10 in the preheating shell 4 from the air outlet end of the induced draft fan 7, and then introduced into the two auxiliary blowing hoods 11 of the preheating shell 4 under the action of the pipeline, so as to preheat the material passing through the preheating shell 4. With the transmission of the conveyor belt 2, the material is firstly dispersed by the obtuse triangle transition belt 13 and several dispersion grooves on its inclined surface. At the same time, the transmission rod 12 in the material distribution frame 6 is driven to rotate by the starting motor 17, so that the two sets of dispersion discs 15 with opposite inclined directions on the transmission rod 12 rotate, so as to evenly disperse the material conveyed on the conveyor belt 2.

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

Claims

1. A mesh belt dryer with a uniform material distribution function, comprising a drying chamber (1) and a conveyor belt (2), characterized in that: Conveyor belts (2) are interspersed at the openings on both sides of the drying bin (1), and bases (5) are fixedly connected to the bottom of the conveyor belt (2) and the drying bin (1) through legs, respectively. A hot air pipe (3) is arranged on the upper inner side of the drying bin (1), and the hot air pipe (3) is connected to an external hot air furnace. A preheating shell (4) is welded to the right side wall of the drying bin (1) corresponding to the conveyor belt (2), and an induced draft fan (7) is fixedly installed on the top of the preheating shell (4). The air inlet end of the induced draft fan (7) extends into the drying bin (1) and is connected to an air suction hood (8), and the air outlet end of the induced draft fan (7) extends into the preheating shell (4) and is connected to a main blowing hood (10). The left and right sides of the main blowing hood (10) are respectively connected to auxiliary blowing hoods (11) through pipelines. ), two material distribution racks (6) are welded to the bottom of the inner side of the preheating shell (4), and one end of each material distribution rack (6) is fixedly installed with a motor (17), the output end of the motor (17) passes through the material distribution rack (6) and is fixedly connected to a transmission rod (12), and two groups of dispersion discs (15) are symmetrically installed on the surface of the transmission rod (12), and the inclination directions of the two groups of dispersion discs (15) are opposite, and a plurality of protrusions (16) are welded on the surface of the dispersion disc (15) of the transmission rod (12), and a transition belt (13) is welded on the right side of the inside of the material distribution rack (6), and a plurality of material distribution grooves (14) are opened on the side of the transition belt (13) facing the transmission rod (12), and the bottom surface of the transition belt (13) is in contact with the conveyor belt (2).

2. The mesh belt dryer with uniform material distribution function according to claim 1, characterized in that: A through opening (9) is provided on the lower surface of the preheating shell (4) corresponding to the conveyor belt (2), and the through opening (9) is connected to the opening of the drying chamber (1).

3. The mesh belt dryer with uniform material distribution function according to claim 1, characterized in that: The cross section of the transition zone (13) is an obtuse triangle structure, and the plurality of material distribution grooves (14) of the transition zone (13) are all arranged obliquely with respect to the inclined surface of the transition zone (13).

4. The mesh belt dryer with uniform material distribution function according to claim 1, characterized in that: Two auxiliary blowing hoods (11) are provided, and the two auxiliary blowing hoods (11) are symmetrical about the vertical center line of the main blowing hood (10).

5. The mesh belt dryer with uniform material distribution function according to claim 1, characterized in that: The portion of the hot air pipe (3) extending into the interior of the drying bin (1) is provided with a plurality of air outlets at equal intervals, and a plurality of pillars connected to the inner wall of the drying bin (1) are welded to the top surface of the hot air pipe (3).

6. The mesh belt dryer with uniform material distribution function according to claim 1, characterized in that: Support blocks are provided at both ends of the material distribution frame (6), the motor (17) is fixedly mounted on one of the support blocks of the material distribution frame (6), and the transmission rod (12) is connected to the other support block of the material distribution frame (6) via a bearing seat.

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