Drum-type dryer

Abstract

The utility model belongs to the technical field of drying machines, and particularly relates to a drum-type drying machine which comprises a drying drum, a feeding port is formed in the feeding end of the drying drum, a plurality of sleeve mechanisms distributed in the axial direction are arranged in the drying drum, and a plurality of scattering mechanisms are welded to the inner wall of the drying drum. The scattering mechanisms and the sleeve mechanisms are distributed in the drying cylinder at intervals, and a blocking mechanism is arranged in the drying cylinder and close to the discharging end. It can be understood that through the scattering mechanism composed of the long plates and the short plates, welding is convenient, the structural strength is guaranteed, the multiple independent channels are formed, drying is uniform, airflow heat is fully absorbed, and transportation is convenient when welding is not conducted. The sleeve mechanism is designed in a circumferential combined mode, transportation is convenient when welding is not carried out, stability is guaranteed through a positioning plate, an outer supporting part and an inner supporting part during welding, and reliability is high after welding. The blocking mechanism effectively blocks the materials which are not dried through the material blocking ring and the material disc, and it is ensured that the materials are discharged after being completely dried.

Description

TECHNICAL FIELD

[0001] The utility model belongs to dryer technical field, especially, relate to a drum dryer. BACKGROUND

[0002] The drum dryer is widely used in food, feed, chemical industry, medicine, mine and other industries. The working process of the equipment is as follows: after the wet material after dehydration is added into the dryer, the material is uniformly dispersed in the dryer under the turning of the evenly distributed lifter in the drum, and is fully contacted with hot air, so that the drying heat transfer and mass transfer are accelerated. Under the action of the lifter with inclination and hot air, the material moves to the discharge valve at the other end of the dryer to discharge the finished product.

[0003] Through the search, application (publication) No. 201920042427.6 discloses a laminated drum dryer, which comprises a drum body and a sleeve structure arranged in the drum body. One end of the drum body is provided with a feeding port, and the other end is provided with a discharging port. The technical features have the technical effects of increasing the drying speed by arranging multiple drum structures in the drying barrel to form layered drying of the material, solving the technical problem of slow drying speed of wet material accumulation at the bottom in the prior art.

[0004] However, the drum dryer has a complex distribution of the scattering structure during production, and it is difficult to ensure the precision during actual welding. The welding amount of the scattering structure is large, and the sleeve structure is formed by integral welding, which is not conducive to transportation, handling and installation. The welding requirements of the lifter are also increased, thereby increasing the overall cost. The sleeve and the drum are fixed by a long screw rod. Although the initial use cost is low, the strength is low, and the long-term use requires maintenance and replacement, which increases the cost loss caused by maintenance, replacement and downtime.

[0005] To solve the above problems, a drum dryer is provided in the present application. Utility model content

[0006] The utility model aims at providing a drum dryer, which solves the problems in the background art.

[0007] To solve the above technical problems, the utility model is implemented by the following technical scheme:

[0008] The utility model is a drum dryer, which comprises a drying cylinder. The drying cylinder is provided with a feeding port at the feeding end. The inside of the drying cylinder is provided with a plurality of sleeve mechanisms distributed along the axial direction. A plurality of scattering mechanisms are welded on the inner wall of the drying cylinder. The scattering mechanisms and the sleeve mechanisms are spaced apart in the drying cylinder. A blocking mechanism is arranged inside the drying cylinder close to the discharging end.

[0009] The dispersing mechanism comprises a plurality of long plates arranged in parallel and welded at both ends inside the drying cylinder and a short plate welded between two adjacent long plates.

[0010] The sleeve mechanism comprises sleeve plates and material lifting plates which are spliced in a circle, the sleeve plates are spliced to form an inner and outer cylindrical tube, and the material lifting plates support the sleeve plates inside the drying cylinder.

[0011] Further, the short plates are arranged perpendicularly to the long plates, the short plates arranged in an upper and lower manner are staggered, and the contact part of the short plate and the drying cylinder is welded and fixed.

[0012] Further, the sleeve plate comprises an inner tube plate forming an inner tube and a support plate formed by sheet metal at one end of the inner tube plate, the other end of the support plate is formed by sheet metal to form an outer tube plate, and the inner tube plate is welded with a positioning plate at one end close to the support plate.

[0013] Further, the support plate is arranged in a vertical state between the inner and outer tubes, and the positioning plate is locally in close contact with the inner side of another inner tube plate.

[0014] Further, the material lifting plate comprises outer and inner support parts formed by sheet metal at both ends, the material lifting plate is staggered with the support plate, the outer support part is supported on the inner side of the drying cylinder and is welded and fixed, and the inner support part is supported on the middle part of the outer side of the outer tube plate and is welded and fixed.

[0015] Further, the blocking mechanism comprises a material blocking ring and a material disc fixed inside the drying cylinder, the material blocking ring is close to the feeding end, the material disc is close to the discharging end, and the diameter of the material disc is greater than the inner diameter of the material blocking ring.

[0016] Further, the material blocking ring is welded with a circumferentially distributed scoop plate close to the feeding end.

[0017] The utility model has the following beneficial effects:

[0018] The dispersing mechanism composed of long plates and short plates can ensure the structural strength while facilitating welding, multiple independent channels can be formed between the long plates and the short plates, the drying is more uniform, the long plates and the short plates can fully absorb airflow heat, good drying and dispersing effects are achieved, and the dispersing mechanism is convenient for transportation when not welded;

[0019] The sleeve mechanism is convenient for transportation, carrying and the like when not welded, and can ensure good stability by itself, facilitate welding work, and be convenient for welding inside the drying cylinder after welding, the sleeve mechanism has higher reliability inside the drying cylinder after welding, and does not need to be replaced;

[0020] The blocking mechanism can effectively play a blocking role, and the material is prevented from being directly discharged outward under the action of airflow, the blocking formed by the material blocking ring and the material disc can only pass through the material blocking ring when the material is dried and the weight is reduced, and the material disc blocking can increase the material between the drying cylinders, and ensure that the material is completely dried before being discharged.

[0021] Of course, implementing any product of the present application does not necessarily require all the advantages described above. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0023] Figure 1 It is an overall appearance structure schematic view of the present application;

[0024] Figure 2 It is Figure 1 It is a structure schematic view of the test;

[0025] Figure 3 It is a structure schematic view of the present application main view partial half cut;

[0026] Figure 4 It is a structure schematic view of the sleeve structure combination state;

[0027] Figure 5 It is a structure schematic view of the separate sleeve plate and the material lifting plate split;

[0028] Figure 6 It is a structure schematic view of the scattering structure installed in the drying cylinder;

[0029] Figure 7 It is an enlarged structure schematic view of the blocking mechanism;

[0030] In the drawings, the components represented by each number are listed as follows:

[0031] In the drawings: 1, drying cylinder; 2, feeding port; 3, scattering mechanism; 31, long plate; 32, short plate; 4, sleeve mechanism; 41, sleeve plate; 411, inner cylinder plate; 412, support plate; 413, outer cylinder plate; 414, positioning plate; 42, material lifting plate; 421, outer support part; 422, inner support part; 5, blocking mechanism; 51, material blocking ring; 511, scoop plate; 52, material disc. DETAILED DESCRIPTION

[0032] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative labor belong to the scope of protection of the utility model.

[0033] In the description of the utility model, it is understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery" and the like indicate the orientation or positional relationship, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the indicated components or elements must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model.

[0034] Please refer to Figure 1 Figure 7 The utility model discloses, a kind of tumble dryer, including drying cylinder 1, drying cylinder 1 feed end is equipped with feed inlet 2, drying cylinder 1 inside is equipped with several sleeve mechanisms 4 distributed along axial direction, several scattering mechanisms 3 are welded in the inner wall of drying cylinder 1, several scattering mechanisms 3 and sleeve mechanism 4 are spaced distribution in drying cylinder 1, blocking mechanism 5 is equipped in drying cylinder 1 inside close to discharge end;

[0035] Scattering mechanism 3 includes several long plates 31 and short plate 32 welded between adjacent two long plates 31, which are parallel distribution and both ends are welded in the inside of drying cylinder 1, scattering mechanism 3 formed by long plate 31 and short plate 32 is convenient for welding and guarantees structural strength, forms multiple independent channels to make drying uniform, fully absorbs airflow heat, is convenient for transportation when not welding;

[0036] Sleeve mechanism 4 includes sleeve plate 41 and material lifting plate 42 spliced by circumference, sleeve plate 41 is spliced to form inside and outside cylindrical barrel, material lifting plate 42 supports sleeve plate 41 in the inside of drying cylinder 1, through the sleeve mechanism 4 of circumferential combination, is convenient for transportation when not welding, relies on positioning plate 414, outer support portion 421 and inner support portion 422 to guarantee stability when welding, high reliability after welding, without replacement.

[0037] Among them, short plate 32 is perpendicular to long plate 31 distribution, and the short plate 32 distributed in upper and lower is staggered distribution, the contact part of short plate 32 and drying cylinder 1 is welded fixed, the staggered distribution of short plate 32 in the embodiment cooperates with long plate 31, which can not only play the scattering effect on material, but also form small channels for accelerating material drying.

[0038] ​The sleeve plate 41 comprises an inner sleeve plate 411 and a support plate 412 formed by sheet metal at one end of the inner sleeve plate 411, and the support plate 412 is formed by sheet metal at the other end of the support plate 412 to form an outer sleeve plate 413, and the inner sleeve plate 411 is welded with a positioning plate 414 at one end close to the support plate 412, and the sleeve plate 41 is integrally formed by sheet metal to ensure the structure shape, and the plurality of sleeve plates 41 in the non-welded state are convenient for transportation and carrying.

[0039] The support plate 412 is vertically distributed between the inner sleeve and the outer sleeve, and the positioning plate 414 is locally in close contact with the inner side of another inner sleeve plate 411, and the support plate 412 plays a middle support effect after the sleeve plate 41 is combined, the vertical distribution has good support effect and is convenient for forming, the positioning plate 414 is arc-shaped and in contact with the inner sleeve plate 411, which plays an effective positioning and inner support role for the combination of the sleeve plate 41, and the rapid positioning of the combined sleeve plate 41 can be realized by tightening the steel wire rope and the like.

[0040] The lifting plate 42 comprises outer support portions 421 and inner support portions 422 formed by sheet metal at both ends, the lifting plate 42 is staggered with the support plate 412, the outer support portions 421 are supported on the inner side of the drying cylinder 1 and are welded and fixed, and the inner support portions 422 are supported on the outer side of the middle part of the outer sleeve plate 413 and are welded and fixed, and the outer support portions 421 and the inner support portions 422 are both arc-shaped in the embodiment, and only the side close to the lifting plate 42 needs to be welded during actual welding.

[0041] The blocking mechanism 5 comprises a material blocking ring 51 and a material disc 52 fixed inside the drying cylinder 1, the material blocking ring 51 is close to the feeding end, the material disc 52 is close to the discharging end, the diameter of the material disc 52 is greater than the inner diameter of the material blocking ring 51, the material blocking ring 51 can effectively block the undried material, the material disc 52 blocks the material flowing out of the material blocking ring 51, and the material disc 52 ensures the drying degree of the material after the material is discharged from the drying cylinder 1, the blocking mechanism 5 effectively blocks the undried material from being discharged, and the material blocking ring 51 and the material disc 52 ensure that the material is completely dried before being discharged.

[0042] The material blocking ring 51 is welded with circumferentially distributed scoop plates 511 close to the feeding end, and the scoop plates 511 can be lifted when the material is blocked by the material blocking ring 51, and the dried material passes through the inner hole of the material blocking ring 51 after being lifted, and the undried material is continuously blocked by the material blocking ring 51, and the dried material can be discharged from the inner hole of the material blocking ring 51 following the airflow.

[0043] It can be understood that the dispersing mechanism composed of long plates and short plates is convenient for welding and ensures structural strength, forms multiple independent channels to make drying uniform, fully absorbs airflow heat, and is convenient for transportation when not welded. The sleeve mechanism adopts a circumferential combined design, which is convenient for transportation when not welded, and relies on the positioning plate, outer support part and inner support part to ensure stability when welded, and has high reliability after welding. The blocking mechanism effectively blocks the undried material through the blocking ring and the material disc, ensuring that the material is completely dried before being discharged.

[0044] One specific application of this embodiment is:

[0045] The dispersing mechanism 3 is welded on site, and the split long plates 31 and short plates 32 are convenient for transportation. When welding on site, multiple long plates 31 are welded in parallel in the drying cylinder 1, and then the short plates 32 are welded in a staggered manner between adjacent long plates 31 and the drying cylinder 1, finally forming multiple grid-shaped small channels along the axial flow;

[0046] The sleeve mechanism 4 is also welded on site, where the material lifting plate 42 and the sleeve plate 41 are both formed by sheet metal forming, and the positioning plate 414 is fixed inside the inner cylinder plate 411 by welding. When welding on site, multiple sleeve plates 41 are combined by the support of the inner cylinder plate 411, without the need for custom-made circular sleeves to position the combined sleeve plates 41, adjustable steel wire rope structures that are convenient to carry and reuse can be used for fixation. The specific steps are to wrap the steel wire rope around the combined sleeve plate 41, then tighten it, and then weld between adjacent sleeve plates 41; the material lifting plate 42 is placed between the sleeve plate 41 and the drying cylinder 1, and can be reliably supported by the outer support part 421 and the inner support part 422, then both ends are welded, and finally the sleeve mechanism 4 is formed in the drying cylinder 1;

[0047] The blocking ring 51 is welded to the inner side of the drying cylinder 1 after welding the scoop plate 511 near the inlet 2, and the material disc 52 is welded inside the drying cylinder 1 near the outlet and through the support;

[0048] The drying cylinder 1 is installed on a rotating frame and enters hot air flow from the feeding port 2 by negative pressure, the material is put into the drying cylinder 1 through the feeding port 2, and the material is pushed forward along with the flow of the air flow, the movement speed of the un-dried material is slow, the drying time is ensured, the movement speed of the gradually dried material is fast, and the material can be discharged as soon as possible, the material is scattered by the scattering mechanism 3, the long plate 31 and the short plate 32 have large areas and can fully contact the hot air flow and the material, and each small channel formed can independently pass the material, the material is scattered and dried by the scattering mechanism 3, the sleeve plate 41 and the material lifting plate 42 can scatter and dry the material during the material passing through the sleeve mechanism 4, the material is dried by the multiple scattering mechanisms 3 and the sleeve mechanisms 4, when the material moves to the position of the blocking mechanism 5, if the material is heavy and not completely dried, the material will be retained at the bottom of the drying cylinder 1 and be blocked by the blocking ring 51, then the material is scooped up by the scoop plate 511, the dried material is light and can pass through the center hole of the blocking ring 51 under the action of the air flow, and the undried material will be scooped up again by the scoop plate 511 until drying, the material is blocked by the material disc 52 after passing through the blocking ring 51, the time of the material in the drying cylinder 1 is increased, and the material is ensured to be fully dried and discharged.

[0049] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0050] The preferred embodiments of the above disclosed application are only used to help explain the application. The preferred embodiments do not describe all the details, nor limit the application to the specific embodiments described. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and utilize the application. The application is limited by the claims and their entire scope and equivalents.

Claims

1. A drum dryer comprising a drying drum (1) provided with a feed inlet (2) at a feed end thereof, and a plurality of sleeve mechanisms (4) distributed along an axial direction inside the drying drum (1), characterized in that: The drying cylinder (1) is welded with a plurality of scattering mechanisms (3), the plurality of scattering mechanisms (3) and sleeve mechanisms (4) are spaced apart in the drying cylinder (1), and the drying cylinder (1) is provided with a blocking mechanism (5) near the discharge end; The scattering mechanism (3) comprises a plurality of long plates (31) welded at both ends of the drying cylinder (1) and a short plate (32) welded between adjacent two long plates (31). The sleeve mechanism (4) comprises sleeve plates (41) and material lifting plates (42) spliced in a circle, the sleeve plates (41) are spliced to form an inner and outer cylindrical tube, and the material lifting plates (42) support the sleeve plates (41) in the drying cylinder (1).

2. A drum dryer according to claim 1, characterised in that: The short plate (32) is vertically distributed with the long plate (31), and the short plates (32) distributed vertically are staggered, and the contact part of the short plate (32) and the drying cylinder (1) is welded and fixed.

3. A drum dryer according to claim 1, characterised in that: The sleeve plate (41) comprises an inner sleeve plate (411) forming an inner sleeve and a support plate (412) formed by sheet metal on one end of the inner sleeve plate (411), the other end of the support plate (412) is formed by sheet metal to form an outer sleeve plate (413), and the inner sleeve plate (411) is welded with a positioning plate (414) near one end of the support plate (412).

4. A drum dryer according to claim 3, characterised in that: The support plate (412) is vertically distributed between the inner and outer sleeves, and the positioning plate (414) is locally in close contact with the inner side of another inner sleeve plate (411).

5. A drum dryer according to claim 3, characterised in that: The material lifting plate (42) comprises outer support portions (421) and inner support portions (422) formed by sheet metal at both ends, the material lifting plate (42) is staggered with the support plate (412), the outer support portions (421) are supported on the inner side of the drying cylinder (1) and are welded and fixed, and the inner support portions (422) are supported on the outer side of the outer sleeve plate (413) and are welded and fixed.

6. A drum dryer according to claim 1, characterised in that: The blocking mechanism (5) comprises a material blocking ring (51) and a material disc (52) fixed in the drying cylinder (1), the material blocking ring (51) is near the feeding end, the material disc (52) is near the discharging end, and the diameter of the material disc (52) is greater than the inner diameter of the material blocking ring (51).

7. A drum dryer according to claim 6, characterised in that: The material blocking ring (51) is welded with a plurality of scraping plates (511) distributed in a circle near the feeding end.

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