CN217357989U

CN217357989U - Rake nail type ring pipe and steam ring pipe rotary dryer

Info

Publication number: CN217357989U
Application number: CN202123042654.5U
Authority: CN
Inventors: 倪春林; 于磊; 金澎; 李得龙; 张晓伟; 白志蕊
Original assignee: Shandong Tianli Energy Co ltd
Current assignee: Shandong Tianli Energy Co ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-09-02
Anticipated expiration: 2031-12-06

Abstract

The utility model belongs to the technical field of the indirect heating equipment, a rake nail formula ring canal and steam ring canal gyration desiccator is provided, including ring canal and a plurality of heat dissipation nail, the heat dissipation nail is radial distribution, sets up evenly the circumference of ring canal outer wall. The utility model welds a certain amount of metal heat dissipation nails on the ring pipe part, the heat exchange area per unit volume is increased, and the transferred heat is increased; the heat dissipation nail is added, the heat exchange effect is enhanced, the efficiency of steam drying is greatly improved, and the consumption of steam is reduced.

Description

Rake nail type ring pipe and steam ring pipe rotary dryer

Technical Field

The utility model belongs to the technical field of the radiating equipment, concretely relates to rake nail formula ring canal and steam ring canal gyration desiccator.

Background

The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.

Steam ring pipe gyration desiccator is an equipment that adopts heat-conduction and heat radiation principle to carry out material drying, steam passes through the indirect heat transfer of heat exchange tube, the material that gets into in the desiccator is when receiving the lift and the stirring of heat exchange tube, constantly carry out the heat exchange with the heat exchange tube surface, the barrel bin outlet of barrel low side is discharged to product after the drying, the moisture of evaporation is along with carrying wet gas and discharging from ejection of compact cover top air outlet in the material, discharge up to standard by the draught fan after the purification and dust removal.

The steam ring pipe rotary dryer has the characteristics of large heat exchange area, large treatment capacity, high dehydration strength, simplicity in operation, wide material adaptability, capability of quickly replacing heat exchange pipes and the like, and is widely applied to drying of materials with high polishing performance, such as copper fine powder, coal slime, quartz sand, zinc refining slag, gold slag, sodium chloride and the like.

According to the inventor, the heat exchange tube in the steam loop rotary dryer adopts a structure of combining a straight tube and a loop tube, the erosion and abrasion of materials to the loop tube are more serious, particularly, the heat exchange tube is used for drying copper fine powder, the service life of the domestic 2205 loop tube (with the thickness of 4mm) is about 8 months, and the service life of the imported 2205 loop tube (with the thickness of 4mm) is about 10 months; the circular pipe and the straight pipe of the circular pipe rotary dryer are light pipes, the disturbance of flowing materials in the cylinder and the change of a heat exchange surface are weak, and the heat exchange efficiency needs to be improved; compared with a straight pipe steam dryer, the circular pipe steam dryer has a large heat exchange area in unit volume, and in order to obtain a better drying effect, appropriate optimization measures can be taken on the structure of the heat exchange pipe, so that the heat exchange area is increased, and the heat exchange efficiency is improved.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve above-mentioned problem, provided a rake nail formula ring canal and steam ring canal gyration desiccator, at the metal heat dissipation nail of ring canal partial weld certain quantity, unit volumetric heat transfer area increases, and the heat of transmission becomes many, improves steam drying's efficiency greatly, reduces the consumption of steam.

According to some embodiments, the utility model discloses a first aspect provides a rake nail formula ring canal, adopts following technical scheme:

a rake nail type ring pipe comprises a ring pipe and a plurality of heat dissipation nails, wherein the heat dissipation nails are radially distributed and uniformly arranged in the circumferential direction of the outer wall of the ring pipe.

As a further technical limitation, the heights of the plurality of heat dissipation pins are all kept consistent.

As a further technical limitation, the heat dissipation nails are all welded on the outer wall of the ring pipe.

As a further technical limitation, the heat dissipation pins are circular in circumferential cross section.

As a further technical limitation, the heat dissipation pins are provided in a cylindrical shape.

According to some embodiments, the utility model discloses a second aspect provides a steam ring pipe rotary dryer, adopts following technical scheme:

a steam ring pipe rotary dryer is internally provided with a heat exchange pipe, wherein the heat exchange pipe comprises a ring pipe and a straight pipe, and the ring pipe adopts a rake nail type ring pipe in the first scheme.

As a further technical limitation, the straight pipe is arranged along the axial direction of the heat exchange pipe, and the ring pipe is arranged along the circumferential direction of the heat exchange pipe.

As a further technical definition, a plurality of said collars are concentrically and uniformly distributed in a radial direction.

As a further technical limitation, the heat dissipation nails on the plurality of ring pipes are not in contact with each other.

As a further technical limitation, two ends of the ring pipe are respectively connected with the straight pipe.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model welds the metal heat dissipation nail on the outer wall of the middle ring pipe of the heat exchange pipe of the dryer according to the rule, the heat exchange area of the unit volume is increased, the transferred heat is increased, the efficiency of steam drying is greatly improved, and the consumption of steam is reduced;

2. the heat dissipation nail on the outer surface of the middle ring pipe protects the ring pipe to a certain extent, weakens the scouring of materials on the outer wall of the ring pipe, and prolongs the service life of the ring pipe;

3. the utility model has the advantages that the outer wall of the ring pipe is welded with a plurality of rows of heat dissipation nails, the flowing state of materials is changed, particularly, the heat exchange surface is continuously changed under the disturbance of the heat dissipation nails between the ring pipes, and the heat exchange effect is strengthened;

4. the processing and welding process of the heat dissipation nail in the utility model is simple and convenient, the operation is easy, and the processing cost is lower compared with the heat exchange tube with the same area;

5. the utility model provides a steam ring canal rotary dryer can weld the heat dissipation nail of different density, different length on the ring canal of different region, different interval according to the state of material, optimizes the dry characteristic of material.

Drawings

The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to constitute a limitation on the invention.

FIG. 1 is a schematic cross-sectional view of a steam loop rotary dryer according to a second embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of a heat exchange tube in a steam loop rotary dryer according to a second embodiment of the disclosure;

FIG. 3 is another schematic structural diagram of a heat exchange tube in a steam loop rotary dryer according to a second embodiment of the disclosure;

fig. 4 is a plan view of the outer wall of the heat exchange tube collar according to the second embodiment of the present invention;

fig. 5 is a schematic structural view of an outer wall of a heat exchange tube loop according to a second embodiment of the present invention;

the dryer comprises a dryer cylinder 1, a dryer cylinder 2, a heat exchange tube 21, a straight tube 22, an annular tube 3, a tube support and fastener 4, a central circular support 5 and a fastener.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings and examples.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

In the present invention, terms such as "fixedly connected", "connected", and the like are to be understood in a broad sense, and may be fixedly connected, or may be integrally connected or detachably connected; may be directly connected or indirectly connected through an intermediate. For persons skilled in the art, the specific meanings of the above terms in the present invention can be determined according to specific situations, and should not be construed as limiting the present invention.

Example one

The embodiment of the utility model provides a rake nail formula ring canal has been introduced.

In one or more embodiments, the height of each of the plurality of heat dissipation pins is consistent.

In one or more embodiments, the heat dissipation pins are welded to the outer wall of the grommet.

In one or more embodiments, the heat dissipation pins are circular in circumferential cross-section.

In one or more embodiments, the heat dissipation pins are provided in a cylindrical shape.

This embodiment is through the metal heat dissipation nail of welding a certain amount on the ring canal outer wall, has improved unit volume's heat transfer area to a very big degree.

Example two

The embodiment of the utility model provides a second introduction a steam ring pipe rotary dryer that has adopted the rake nail formula ring pipe introduced in embodiment one.

As shown in fig. 1, 2, 3, 4 and 5, the steam loop rotary dryer comprises a dryer cylinder 1, a heat exchange pipe 2, a pipe support and fastener 3, a central circular support 4 and a fastener 5; wherein, the heat exchange tube 2 comprises a straight tube 21 and a ring tube 22; the one end that is close to 1 inner wall of desiccator barrel on pipe support and the fastener 3 is connected on desiccator barrel 1 through the pipe brace, and the other end that is close to the barrel center passes through fastener 5 to be connected on central circle props 4, and heat exchange tube 2 passes through straight tube 21 to be fixed on the pipe supports.

The collar 22 is a brawn collar as described in the first embodiment.

In one or more embodiments, the straight pipe 21 is disposed along the axial direction of the heat exchange tube 2, and the ring pipe 22 is disposed along the circumferential direction of the heat exchange tube 2.

In one or more embodiments, a plurality of the collars 22 are uniformly distributed concentrically in the radial direction.

In one or more embodiments, the heat dissipation pins of the collar 22 are not in contact with each other.

In one or more embodiments, the two ends of the loop pipe 22 are respectively connected with a straight pipe.

Specifically, on the formed ring pipe 22, the heat dissipation nails are arranged in a triangle, the distance is set to be 20-30mm, and the heat dissipation nails with the diameter of phi 6mm and the length of 20-30mm are welded on the outer wall of the ring pipe 22 in a welding mode. On a 1 m long ring tube, the diameter of the ring tube 22 is phi 60mm, and the expansion surfaceProduct of 0.19m ² For example, if heat dissipation nails with diameter of 6mm and length of 30mm are welded on the outer wall of the ring tube 22, 16 heat dissipation nails can be welded in one row in the expansion area, 15 rows can be arranged after staggered arrangement, 240 heat dissipation nails can be welded in total, and the area is increased by 0.136m ² The area ratio of increase was 0.136/0.19 × 100%, 71%.

The heat exchange tubes of one certain type of drier have 124 loops, each loop is 1.544 m in length, and the total length of the loops is 124 x 1.544 x 5-957.3 m, and the total area of the original loops is 0.06 x 3.14 x 957.3-180 m ² After welding the heat-dissipating nail, the increased area 957.3 x 0.136 x 130m ² The increased area is 72% of the original ring pipe area, and the increased area is very considerable. Meanwhile, in the material flowing process, the heat exchange efficiency is improved due to the fact that the heat exchange surfaces formed by the material disturbance are rapidly updated by the countless heat dissipation nails, and the improvement can be obviously seen from consumption data of a heat source.

In the operation process of the dryer, along with the rotation of the dryer cylinder 1, the multiple rows of heat dissipation nails on the outer wall of the ring pipe 22 are respectively in full contact with the materials, the flowing state of the materials is changed based on the heat dissipation nails, the updating frequency of the heat exchange surface is increased, the heat exchange effect is enhanced, and the drying efficiency is improved.

The heat dissipation nails are regularly arranged on the outer wall of the ring pipe, so that the flow of materials is changed, the scouring of the materials on the outer wall of the ring pipe 22 is weakened, the ring pipe is protected to a certain extent, and the service life of the ring pipe 22 is prolonged.

Although the specific embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications or variations can be made by those skilled in the art without inventive efforts on the basis of the technical solutions of the present invention.

Claims

1. A steam ring pipe rotary dryer is characterized in that a heat exchange pipe is arranged in the rotary dryer, the heat exchange pipe comprises a ring pipe and a straight pipe, and the ring pipe is a rake nail type ring pipe;

the rake nail type ring pipe comprises a ring pipe and a plurality of heat dissipation nails, and the heat dissipation nails are radially distributed and uniformly arranged on the circumference of the outer wall of the ring pipe.

2. A steam loop rotary dryer as claimed in claim 1, wherein the height of the plurality of heat dissipating studs is uniform.

3. A steam loop rotary dryer as claimed in claim 1, wherein the heat dissipation pins are welded to the outer wall of the loop.

4. A steam loop rotary dryer as claimed in claim 1, wherein said heat-dissipating pins are circular in circumferential cross-section.

5. A steam loop rotary dryer as claimed in claim 1, wherein said heat dissipation pins are arranged in a cylindrical shape.

6. A steam loop rotary dryer as claimed in claim 1 wherein said straight tubes are arranged axially of the heat exchange tubes and said loop is arranged circumferentially of the heat exchange tubes.

7. A steam loop rotary dryer as claimed in claim 1 wherein a plurality of said loops are radially and concentrically distributed.

8. A steam loop rotary dryer as claimed in claim 1, wherein the heat dissipation pins on a plurality of said loops are not in contact with each other.

9. A steam loop rotary dryer as claimed in claim 1 wherein both ends of said loop are connected to straight pipes respectively.