Novel steam process mode dryer

Abstract

The utility model relates to the field of drum type dryers, in particular to a novel steam flow mode dryer which comprises a drum. A plurality of drying assemblies are arranged in the roller around the axis of the roller. The drying assembly comprises a steam distributing pipe, a collecting pipe and multiple inner pipes, the inner pipes are arranged in the radial direction of the roller, and the two ends of each inner pipe are connected with the steam distributing pipe and the collecting pipe correspondingly; the collecting structure is provided with a collecting channel connected with all the collecting pipes, and the collecting channel communicates with the rotary joint; the distribution structure is provided with a distribution channel connected with all the steam distribution pipes; one end of the air supply pipe is connected with the distribution channel, and the other end of the air supply pipe is communicated with the rotary joint; and the supporting structure is welded in the roller and is used for limiting the positions of all the inner pipes and the air supply pipes in the roller. The number of structures penetrating through the outer wall of the roller is reduced, and the hidden danger of steam leakage is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a drum dryer technical field especially relates to a novel steam flow process mode dryer. BACKGROUND

[0002] The drum steam dryer is the equipment for drying water-containing material, and its working principle is that a driving device drives a circular cylinder to rotate, the cylinder generally keeps an inclination of 3-5 degrees with the ground, a circular material feeding channel coaxial with the cylinder is arranged in the cylinder, and a steam channel is arranged outside the feeding channel in the cylinder. The material enters the feeding channel from the top end of the feeding channel, continuously turns over in the feeding channel, and gradually moves to the discharge port at the bottom of the cylinder. Steam is continuously introduced into the steam channel to heat the material, so that the water in the material is converted into steam form and discharged from the gas outlet at the top of the cylinder.

[0003] Chinese patent CN109612232A discloses a sandwich type steam dryer drum, the drum body includes an inner layer drum and an outer layer drum, and a sandwich layer is arranged between the two drums. A plurality of jacks are threadedly connected to the surface of the outer layer drum, the inner end of the jack penetrates through the outer layer drum and presses on the outer surface of the inner layer drum to ensure the relative position stability between the inner layer drum and the outer layer drum, and the thickness of the sandwich layer is not affected by the internal material tumbling. A plurality of grid-shaped tubular heat sinks in communication with the sandwich layer are arranged on the inner side of the drum, the tubular heat sinks are arranged in multiple groups along the axial direction of the drum, and each group is provided with a plurality of tubular heat sinks distributed around the axis of the drum. A tubular main shaft is arranged in the drum, and the main shaft is in communication with the sandwich layer through spoke conduction pipes.

[0004] The above-mentioned drum is provided with a plurality of jacks penetrating through the outer side wall of the sandwich layer, and there is a great risk of steam leakage. UTILITY MODEL CONTENTS

[0005] In view of the problem that the steam sandwich layer in the existing steam dryer is supported by a plurality of jacks penetrating through the outer side wall of the sandwich layer, and there is a great risk of steam leakage, the utility model provides a novel steam flow process mode dryer, the internal fluid flow path is fixed in the drum through a supporting structure, the supporting structure is welded with the drum, the number of structures penetrating through the outer wall of the drum is reduced, and the risk of steam leakage is effectively reduced.

[0006] The utility model provides a novel steam flow process mode dryer, which comprises:

[0007] A drum, one end of which is provided with a feeding port, and the other end is provided with a discharge port.

[0008] A driving device for driving the drum to rotate.

[0009] A rotary joint located at one end of the drum provided with the discharge port.

[0010] The drum is provided with:

[0011] The drying assembly is arranged around the drum axis. The drying assembly comprises a distribution pipe, a collection pipe, and inner pipes arranged along the drum radial direction. The two ends of the inner pipes are connected to the distribution pipe and the collection pipe respectively.

[0012] The collection structure has a collection channel connected to all the collection pipes. The collection channel is in communication with the rotary joint.

[0013] The distribution structure has a distribution channel connected to all the distribution pipes.

[0014] The gas supply pipe is located on the side of all the drying assemblies close to the drum axis. One end of the gas supply pipe is connected to the distribution channel, and the other end is in communication with the rotary joint.

[0015] The support structure is welded inside the drum to define the positions of all the inner pipes and the gas supply pipe inside the drum.

[0016] In some embodiments, the drying assembly further comprises an outer pipe. One end of the outer pipe is connected to the collection channel, and the other end is connected to the distribution channel. The outer pipe is arranged along the drum inner wall in a circumferential direction.

[0017] In some embodiments, the support structure comprises a first frame fixed to the drum inner wall. The first frame is arranged in multiple groups along the drum axial direction. Each group is arranged along the drum axial direction in multiple numbers. Each group corresponds to one drying assembly. The inner pipe and the outer pipe pass through all the first frames of the corresponding group. The first frame has an inner pipe radial expansion space and an outer pipe radial expansion space.

[0018] In some embodiments, the first frame comprises:

[0019] A first sheath corresponding to each inner pipe for accommodating the corresponding inner pipe.

[0020] A second sheath corresponding to each outer pipe for accommodating the corresponding outer pipe.

[0021] A support rod fixed to the drum inner wall at one end and connected to all the corresponding first sheaths and all the corresponding second sheaths.

[0022] In some embodiments, the first frame further comprises a first connecting rod for connecting the second sheath to the support rod. A second connecting rod for connecting two adjacent support rods in the drum circumferential direction.

[0023] In some embodiments, multiple gas supply pipes are provided.

[0024] In some embodiments, the support structure further comprises a second frame comprising a main body and multiple support rods distributed around the main body. The main body is located on the side of all the drying assemblies close to the drum axis. One end of the support rod is connected to the drum inner wall, and the other end is connected to the main body. The gas supply pipe passes through the second frame. The main body has a gas supply pipe radial expansion space.

[0025] In some embodiments, the main body comprises: a third sheath corresponding to the gas supply pipe, used to accommodate the corresponding gas supply pipe; and a third connecting rod used to connect two adjacent third sheaths.

[0026] In some embodiments, the collecting structure and the distributing structure are both annular tubes, and are both collinear with the drum axis and cooperated with the inner side wall of the drum.

[0027] In some embodiments, the inner diameter of the collecting structure and the inner diameter of the distributing structure are both greater than the inner diameter of the outer tube and the inner diameter of the inner tube.

[0028] Compared with the prior art, the utility model has the beneficial effects that:

[0029] 1、The fluid flow path in the utility model is fixed in the drum through the support structure, and the support structure is welded with the drum, so that the number of structures penetrating the outer wall of the drum is reduced, and the hidden danger of steam leakage is effectively reduced.

[0030] 2、The utility model discloses a plurality of outer tubes are arranged on the side wall of the drum, the steam distribution area of the outer side of the drum is increased, the influence of the low-temperature environment outside the drum on the temperature in the drum is reduced, and the drying effect is improved.

[0031] 3、During the rolling process of the drum, the gas supply pipe, the inner tube and the outer tube of the drying assembly and other structures can stir the materials in the drum, so that the contact area of the materials and air is increased, and the drying is accelerated. BRIEF DESCRIPTION OF DRAWINGS

[0032] The drawings described herein are used to provide further understanding of the utility model, and constitute a part of the application, and the illustrative embodiments of the utility model and the description thereof are used to explain the utility model, and do not constitute improper limitation on the utility model.

[0033] Fig. 1 The drawings described herein are used to provide further understanding of the utility model, and constitute a part of the application, and the illustrative embodiments of the utility model and the description thereof are used to explain the utility model, and do not constitute improper limitation on the utility model.

[0034] Fig. 2 The drawings described herein are used to provide further understanding of the utility model, and constitute a part of the application, and the illustrative embodiments of the utility model and the description thereof are used to explain the utility model, and do not constitute improper limitation on the utility model.

[0035] Fig. 3 The drawings described herein are used to provide further understanding of the utility model, and constitute a part of the application, and the illustrative embodiments of the utility model and the description thereof are used to explain the utility model, and do not constitute improper limitation on the utility model.

[0036] In the drawings:

[0037] 11, steam distribution pipe; 12, collection pipe; 13, inner pipe; 14, outer pipe; 2, collection structure; 3, distribution structure; 4, gas supply pipe; 51, first sheath; 52, second sheath; 53, support rod; 54, first connecting rod; 55, second connecting rod; 56, support rod; 57, third sheath; 58, third connecting rod; 6, water return pipe; 7, rotary joint. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0039] In the description of the present application, it should be understood that the terms "center", "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0040] The terms "first", "second", "third" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second", "third" can explicitly or implicitly include one or more of the features.

[0041] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0042] As shown in the drawings, Figs. 1-3 The embodiment of the novel steam process type drying machine provided by the present application at least comprises:

[0043] A roller, one end of which is provided with a feeding port, and the other end is provided with a discharging port.

[0044] A driving device for driving the roller to rotate.

[0045] Rotary joint 7, located at one end of the drum where the discharge port is provided.

[0046] The drum is provided with:

[0047] Drying assemblies are provided around the drum axis. The drying assemblies include steam distribution pipes 11, a collection pipe 12, and inner pipes 13. The inner pipes 13 are provided along the radial direction of the drum. The two ends of the inner pipes 13 are connected to the steam distribution pipes 11 and the collection pipe 12, respectively.

[0048] The collection structure 2 has a collection channel connected to all the collection pipes 12. The collection channel is in communication with the rotary joint 7.

[0049] The distribution structure 3 has a distribution channel connected to all the steam distribution pipes 11.

[0050] The gas supply pipe 4 is located on the side of all the drying assemblies close to the drum axis. One end of the gas supply pipe 4 is connected to the distribution channel, and the other end is in communication with the rotary joint 7.

[0051] The support structure is welded inside the drum to define the positions of all the inner pipes 13 and the gas supply pipe 4 inside the drum.

[0052] The above-mentioned drum, drive device, and rotary joint 7 are not shown in the figure.

[0053] The rotary joint 7 has multiple fluid channels that do not interfere with each other. The gas supply pipe 4 and the collection channel are connected to different fluid channels, respectively. The rotary joint 7 is a common part on the market, and its specific structure is not described here.

[0054] Steam flows from the rotary joint 7 to the gas supply pipe 4, the distribution structure 3, the steam distribution pipes 11, and then enters the inner pipes 13 to exchange heat with the materials inside the drum. The steam in the inner pipes 13 gradually changes into condensed water, which flows through the collection pipes 12 and the collection channel and then returns to the rotary joint 7. During the rolling process of the drum, the structures such as the gas supply pipe 4, the inner pipes 13, and the outer pipes 14 of the drying assemblies can stir the materials inside the drum to increase the contact area between the materials and the air, thereby accelerating the drying. The water vapor generated by the heating of the wet materials inside the drum can be discharged from the drum through the feed port.

[0055] The fluid flow path in the above-mentioned dryer is fixed inside the drum by the support structure, which is welded to the drum. This reduces the number of structures that penetrate the outer wall of the drum and effectively reduces the risk of steam leakage.

[0056] In some embodiments, the drying assembly further includes an outer pipe 14. One end of the outer pipe 14 is connected to the collection channel, and the other end is connected to the distribution channel. The outer pipe 14 is provided along the circumference of the inner side wall of the drum. This reduces the influence of the low-temperature environment outside the drum on the temperature inside the drum and improves the drying effect.

[0057] In some embodiments, the support structure comprises: a first frame fixed to the inner side wall of the drum, arranged in multiple groups along the axial direction of the drum, each group arranged in multiple along the axial direction of the drum, each group corresponding to a drying assembly, the inner tube 13 and the outer tube 14 passing through all the first frames of the corresponding group. The first frame leaves a radial expansion space for the inner tube 13 to ensure that the first frame does not excessively clamp the inner tube 13 after the inner tube 13 expands due to heating, reducing the possibility of deformation of the inner tube 13 and improving the service life of the inner tube 13. The first frame leaves a radial expansion space for the outer tube 14 to ensure that the first frame does not excessively clamp the outer tube 14 after the outer tube 14 expands due to heating, reducing the possibility of deformation of the outer tube 14 and improving the service life of the outer tube 14.

[0058] In some embodiments, the first frame comprises:

[0059] The first sheath 51 corresponds to the inner tube 13 one-to-one and is used to accommodate the corresponding inner tube 13.

[0060] The second sheath 52 corresponds to the outer tube 14 one-to-one and is used to accommodate the corresponding outer tube 14.

[0061] The support rod 53 is fixed to the inner side wall of the drum at one end and is connected to all the corresponding first sheaths 51 and all the corresponding second sheaths 52.

[0062] In some embodiments, the first frame further comprises:

[0063] The first connecting rod 54 is used to connect the second sheath 52 to the support rod 53.

[0064] The second connecting rod 55 is used to connect two adjacent support rods 53 in the circumferential direction of the drum to stabilize the relative position between the ends of the two support rods 53 close to the axis of the drum.

[0065] Further, the first frame is composed of the first sheath 51, the second sheath 52, the first connecting rod 54, and the second connecting rod 55.

[0066] In some embodiments, multiple gas supply pipes 4 are provided to increase the steam heat exchange area and improve the drying efficiency. All the gas supply pipes 4 can be connected to the rotary joint 7 through the same pipe, or all the gas supply pipes 4 are connected to different fluid channels in the rotary joint 7.

[0067] Further, all the gas supply pipes 4 are uniformly distributed around the axis of the drum.

[0068] In some embodiments, the support structure further comprises a second frame body comprising a main body and a plurality of support rods 56 distributed around the main body, the main body being located on the side of all the drying assemblies close to the drum axis. The support rods 56 are connected to the inner wall of the drum at one end and to the main body at the other end, and the air supply pipe 4 passes through the second frame body. The main body has a space for the radial expansion of the air supply pipe 4 to ensure that the main body does not excessively clamp the air supply pipe 4 after the air supply pipe 4 is heated and expanded, reducing the possibility of deformation of the air supply pipe 4 and improving the service life of the air supply pipe 4. The material can pass through the second frame body from the gap between the drum, the support rods 56 and the main body.

[0069] Further, the second frame body is composed of the main body and the support rods 56.

[0070] In some embodiments, the main body comprises a third sheath 57 corresponding to the air supply pipe 4 for accommodating the corresponding air supply pipe 4. A third connecting rod 58 is used to connect two adjacent third sheaths 57 to improve the structural stability of the main body. The material can pass through the main body composed of the third sheaths 57 and the third connecting rods 58. Fig. 3 For example, the material can pass through the annular inner side formed by all the third sheaths 57 and all the third connecting rods 58.

[0071] Further, the main body is composed of the third sheaths 57 and the third connecting rods 58.

[0072] In some embodiments, the collection structure 2 and the distribution structure 3 are both annular pipes, the collection structure 2 and the distribution structure 3 are both collinear with the drum axis, and the collection structure 2 and the distribution structure 3 are both matched with the inner wall of the drum.

[0073] In some embodiments, the inner diameter of the collection structure 2 is greater than the inner diameter of the outer pipe 14, the inner diameter of the collection structure 2 is greater than the inner diameter of the inner pipe 13, the inner diameter of the distribution structure 3 is greater than the inner diameter of the outer pipe 14, and the inner diameter of the distribution structure 3 is greater than the inner diameter of the inner pipe 13.

[0074] In some embodiments, the dryer further comprises a water return pipe 6. The water return pipe 6 is connected to the collection channel at one end and to the rotary joint 7 at the other end.

[0075] In some embodiments, the drying assembly further comprises a connecting pipe, the connecting pipe being annular, and two connecting pipes are provided, one connecting pipe being connected to the end of all the steam distribution pipes 11 close to the drum axis, and the other connecting pipe being connected to the end of all the collection pipes 12 close to the axis. The above-mentioned connecting pipes not only can communicate all the drying assemblies, but also can assist in defining the positions of all the drying assemblies in the circumferential direction of the drum. The connecting pipes are not shown in the figure.

[0076] From the description of the plurality of embodiments of the novel steam process mode dryer of the utility model, it can be seen that the embodiments of the novel steam process mode dryer of the utility model have at least one or more of the following advantages:

[0077] 1、 The fluid flow path in the utility model is fixed in the roller through the support structure, the support structure is welded with the roller, the number of structures penetrating the outer wall of the roller is reduced, and the hidden danger of steam leakage is effectively reduced.

[0078] 2、 The utility model discloses a plurality of outer tubes 14 are arranged on the lateral wall of the roller, the steam distribution area of the outer side of the roller is increased, the influence of the low-temperature environment outside the roller on the temperature in the roller is reduced, and the drying effect is improved.

[0079] 3、 The utility model discylinder rolling process, the gas supply pipe 4, the inner tube 13 and the outer tube 14 of drying assembly and so on structure can all carry out the stirring to the material in the roller, to improve the contact area of material and air, and accelerate drying.

[0080] Finally, it should be noted that: the embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts of each embodiment can be referred to each other.

[0081] The above embodiments are only used to illustrate the technical scheme of the utility model and not to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the specific implementation of the utility model can be modified or some technical features can be replaced. Without departing from the spirit of the technical scheme of the utility model, they should be covered in the technical scheme range of the utility model claimed.

Claims

1. A novel steam flow pattern dryer characterized in that, The utility model relates to a drying device for drying materials, comprising: a drum having an inlet at one end and an outlet at the other end; a driving device for driving the drum to rotate; a rotary joint located at the end of the drum having the outlet; the drum is provided with: a plurality of drying assemblies arranged around the drum axis, each drying assembly comprising a branch pipe, a collecting pipe and a plurality of inner pipes arranged along the radial direction of the drum, the two ends of each inner pipe being connected to a branch pipe and a collecting pipe, respectively; a collecting structure having a collecting channel connected to all the collecting pipes, the collecting channel being in communication with the rotary joint; a distribution structure having a distribution channel connected to all the branch pipes; a gas supply pipe located on the side of all the drying assemblies close to the drum axis, one end of the gas supply pipe being connected to the distribution channel and the other end being in communication with the rotary joint; a support structure welded in the drum for defining the positions of all the inner pipes and the gas supply pipe in the drum.

2. A novel steam flow pattern dryer according to claim 1, characterized in that, Each drying assembly further comprises an outer pipe, one end of which is connected to the collecting channel and the other end of which is connected to the distribution channel, a plurality of outer pipes being arranged along the inner wall of the drum.

3. A novel steam flow pattern dryer according to claim 2, characterized in that, The support structure comprises a plurality of first frames fixed to the inner wall of the drum and arranged along the axial direction of the drum, each group of first frames being arranged along the axial direction of the drum and corresponding to one drying assembly, the inner pipes and the outer pipes passing through all the first frames of the corresponding group, the first frames leaving radial expansion spaces for the inner pipes and the outer pipes.

4. A novel steam flow pattern dryer according to claim 3, characterized in that, Each first frame comprises: a first sheath corresponding to one inner pipe for accommodating the corresponding inner pipe; a second sheath corresponding to one outer pipe for accommodating the corresponding outer pipe; a support rod having one end fixed to the inner wall of the drum and being connected to all the first sheaths and all the second sheaths corresponding to the same drying assembly.

5. A novel steam flow pattern dryer according to claim 4, characterized in that, Each first frame further comprises a first connecting rod for connecting the second sheaths to the support rod and a second connecting rod for connecting two adjacent support rods in the circumferential direction of the drum.

6. A new steam flow pattern dryer according to any one of claims 1-5, characterized in that, The gas supply pipe is provided with a plurality of gas supply pipes.

7. A novel steam flow pattern dryer according to claim 6, characterized in that, The support structure further comprises a second frame comprising a main body and a plurality of support rods distributed around the main body, the main body being located on the side of all the drying assemblies close to the drum axis, one end of each support rod being connected to the inner wall of the drum and the other end being connected to the main body, the gas supply pipes passing through the second frame, the main body leaving a radial expansion space for the gas supply pipes.

8. A novel steam flow pattern dryer according to claim 7, characterized in that, The main body comprises: a third sheath corresponding to one gas supply pipe for accommodating the corresponding gas supply pipe; a third connecting rod for connecting two adjacent third sheaths.

9. A new steam flow pattern dryer according to any one of claims 1-5, characterized in that, The collecting structure and the distribution structure are both annular pipes, are both collinear with the drum axis and are both matched with the inner wall of the drum.

10. A novel steam flow pattern dryer according to claim 9, characterized in that, The utility model further comprises: the inner diameters of the collecting structure and the distribution structure are both greater than the inner diameters of the outer pipes and the inner pipes.

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