CN218002065U

CN218002065U - Pipe disc type drying device

Info

Publication number: CN218002065U
Application number: CN202221815208.5U
Authority: CN
Inventors: 舒克孝
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-07-15
Filing date: 2022-07-15
Publication date: 2022-12-09
Anticipated expiration: 2032-07-15

Abstract

The utility model provides a pipe disc type drying device, which comprises a cavity structure consisting of an upper cover, a shell and a bottom plate, wherein a plurality of layers of pipe discs are arranged in the cavity structure along the vertical direction and are arranged in parallel, the lower part of each layer of pipe disc is welded with a corresponding groined pipe disc bracket into a whole, and the groined pipe disc bracket is welded and fixed with the inner wall of the shell; the pipe coil is a plane pipe coil formed by bending pipe coils, a steam inlet of the pipe coil is communicated with a steam inlet header pipe through a steam inlet pipe, and a gas outlet of the pipe coil is communicated with a tail gas header pipe through a tail gas pipe; a material scraping structure consisting of a material distribution scraper rod and a material distribution scraper is arranged above the first layer of pipe disc from top to bottom, a deflector rod is respectively arranged above the second layer of pipe disc to the last layer of pipe disc, and the material distribution scraper rod and the deflector rod are respectively in transmission connection with a transmission mechanism through a vertically-installed central shaft tube; the upper cover is provided with a wet material inlet and a moisture outlet, and the bottom plate is provided with a dry material outlet. The utility model discloses the purpose is the whole efficiency of improve equipment, reduces equipment investment cost, reduces the operation energy consumption.

Description

Pipe disc type drying device

Technical Field

The utility model relates to a pipe disc formula drying device belongs to powder stoving technical field.

Background

Vertical disc dryers and horizontal disc dryers are currently available in the market. The vertical disc dryer is structurally characterized in that the sizes of discs are arranged in a vertically staggered mode, materials to be dried are scraped inwards from the outer edge of the large disc by scraping plates with inclined angles on the upper surface of the discs, fall onto the lower small disc from inner holes of the large disc, are scraped outwards from the inner edge of the small disc by scraping plates with opposite inclined angles, fall onto the large disc from the outer edge of the small disc, the discs are hollow discs welded by steel plates and are communicated with a heat source, only one side of the upper surface of each disc is a heated surface, the utilization rate is 50% of that of each disc, and the investment utilization rate is too low. The horizontal disc dryer places the disc in the material, the contact heat exchange effect of the rotation of the disc and the material is good, the heating surface is 2 times of that of the vertical disc dryer, but the power of the rotation of the disc is 3 times of that of the vertical disc dryer, and the abrasion of the disc is very serious. In addition, the hollow bearing steam pressure of the vertical or horizontal disc is very low, so that a high-temperature steam heat source cannot be used, and the overall equipment efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pipe disc formula drying device, the purpose is the whole efficiency of improve equipment, reduces equipment investment cost, reduces the operation energy consumption.

The utility model discloses a through following technical scheme implementation:

a pipe disc type drying device comprises a cavity structure consisting of an upper cover, a shell and a bottom plate, wherein multiple layers of pipe discs are arranged in the cavity structure along the vertical direction and are arranged in parallel, the lower part of each layer of pipe disc is welded with a corresponding groined pipe disc bracket into a whole, and the groined pipe disc bracket is welded and fixed with the inner wall of the shell; the pipe coil is a planar pipe coil formed by roasting pipe coils, a steam inlet of the pipe coil is communicated with a steam inlet header pipe through a steam inlet pipe, and a gas outlet of the pipe coil is communicated with a tail gas header pipe through a tail gas pipe; a material scraping structure consisting of a material distribution scraper rod and a material distribution scraper is arranged above the first layer of pipe disc from top to bottom, a deflector rod is respectively arranged above the second layer of pipe disc to the last layer of pipe disc, and the material distribution scraper rod and the deflector rod are respectively in transmission connection with a transmission mechanism through a vertically-installed central shaft tube; the upper cover is provided with a wet material inlet and a moisture outlet, and the bottom plate is provided with a dry material outlet.

Preferably, in each layer of pipe coil, the inner ring pipe orifice of the pipe coil is used as a steam inlet, and the outer ring pipe orifice of the pipe coil is used as an air outlet.

Preferably, the scraping structure comprises a material distribution scraper rod and a material distribution scraper, and the material distribution scraper is welded on the material distribution scraper rod at an angle of 45 degrees in the front and back directions.

Preferably, the outermost circle and the innermost circle of each layer of pipe coil are respectively welded with a material distribution stop ring.

Preferably, a discharging structure consisting of a discharging scraper and a discharging scraper rod is arranged on the bottom plate, the discharging scraper rod is fixedly connected to the driving lever fixing ring through a driving lever fixing bolt, and a reinforcing ring is welded at the end of the discharging scraper rod.

Preferably, the shell is composed of an outer shell, an inner shell and a heat insulation material sandwiched between the outer shell and the inner shell.

Preferably, the inner wall of the shell is uniformly provided with vertical calandria tubes along the vertical direction, the upper parts of the vertical calandria tubes are in welded communication with the header on the vertical calandria tubes, the lower parts of the vertical calandria tubes are in welded communication with the header below the vertical calandria tubes, the header on the vertical calandria tubes is provided with an upper header steam inlet, and the header below the vertical calandria tubes is provided with a lower header condensed water outlet.

Preferably, the central shaft tube is positioned by the locating sleeve as an axis, the locating sleeve is welded on the upper cover, and the locating rotary disc is welded on the upper part of the central shaft tube and is in sliding fit with the locating sleeve.

Preferably, a transmission mechanism consisting of a motor, a belt pulley and a speed reducer is fixedly installed on the foundation and is connected with a central shaft tube through a transmission flange, a rotating gap of the central shaft tube relative to the bottom plate is sealed through labyrinth seals, and the labyrinth seals are welded on the bottom plate.

The utility model has the advantages that:

1. the pipe coil made of the steel pipe is resistant to high steam pressure, can use a high-temperature steam heat source, and has high heat exchange efficiency.

2. The dried materials descend from the annular blanking channel between the pipe coils, the pipe coils are filled with the materials from top to bottom, the effective heat exchange surface of the pipe coils is 100% and is 2 times of that of the disc.

3. The consumption of materials is low, and is only 1/2 of that of the same power equipment.

4. The equipment investment is low, and is only 40% of that of equipment with the same power.

5. Small volume and high efficiency of the whole machine.

6. The power required by transmission is small, and electric energy and cost are saved.

7. The surface abrasion of the pipe disc is small.

Drawings

Fig. 1 is a schematic sectional view of the entire device.

Fig. 2 is a schematic top view of a tube tray.

FIG. 3 is a schematic plan view of the arrangement of the leveling rake.

FIG. 4 is a schematic top view of the bottom of the apparatus.

Illustrated in the accompanying figure numbers: 1. a support leg; 2. a spiral discharging machine; 3. a transmission mechanism; 4. a foundation; 5. a drive flange; 6. labyrinth sealing; 7. a deflector rod fixing ring; 8. an inlet pipe elbow; 9. the deflector rod fixes the bolt; 10. a pipe coil; 11. a deflector rod; 12. a steam inlet pipe; 13. an inlet pipe flange; 14. a condensed water outlet; 15. a tail gas pipe flange; 16. a tail gas pipe; 17. an exhaust pipe elbow; 18. an inlet header pipe; 19. a tail gas header pipe; 20. an inlet of the steam inlet header pipe; 21. a cloth material stop ring; 22. a cloth scraper; 23. a cloth scraper bar; 24. an upper cover; 25. a moisture outlet; 26. a positioning sleeve; 27. positioning a turntable; 28. a central shaft tube; 29. a wet material inlet; 30. covering with heat insulating material; 31. collecting boxes on the vertical pipes; 32. an upper header steam inlet; 33. vertically arranging pipes; 34. an inner shell; 35. a shell insulation material; 36. a housing; 37. a tube tray bracket; 38. a discharge scraper bar; 39. a discharging scraper plate; 40. a base plate; 41. a lower header of the vertical arrangement pipes; 42. a lower header condensed water outlet; 43. a reinforcing ring of the discharging scraper rod; 44. a dry material outlet; 45. a tube coil steam inlet; 46. a tube coil steam outlet; 47. the material falls down the annular passage.

Detailed Description

As shown in fig. 1 to 4, the pipe-tray drying device includes a cavity structure composed of an upper cover 24, a casing and a bottom plate 40, wherein the support legs 1 are installed below the cavity structure, and the casing is composed of an outer casing 36, an inner casing 34 and a heat insulating material 35 sandwiched between the outer casing 36 and the inner casing 34.

A plurality of layers of pipe coils are vertically arranged in the cavity structure and are arranged in parallel, the lower part of each layer of pipe coil is welded with a corresponding groined pipe coil bracket 37 into a whole, and the groined pipe coil bracket 37 is welded and fixed with the inner wall of the shell; the pipe coil is a plane pipe coil formed by roasting pipe coil pipes 10, a steam inlet of each pipe coil pipe 10 is communicated with a steam inlet header pipe 18 through a steam inlet pipe 12, and a gas outlet of each pipe coil pipe 10 is communicated with a tail gas header pipe 19 through a tail gas pipe 16; a material scraping structure consisting of a material distribution scraper bar 23 and a material distribution scraper 22 is arranged above the first layer of pipe coil from top to bottom, a deflector rod 11 is respectively arranged above the second layer of pipe coil to the last layer of pipe coil, and the material distribution scraper bar 23 and the deflector rod 11 are respectively in transmission connection with a transmission mechanism through a central shaft tube 28 which is vertically arranged; the upper cover 24 is provided with a wet material inlet 29 and a damp material outlet 25, and the bottom plate 40 is provided with a dry material outlet 44.

In each layer of tube coil, the inner ring pipe orifice of the tube coil 10 is used as a steam inlet, i.e., a tube coil steam inlet 45, and the outer ring pipe orifice of the tube coil 10 is used as a steam outlet, i.e., a tube coil steam outlet 46, as shown in fig. 2. Furthermore, the pipe orifice of the inner ring of the pipe coil is communicated with the steam inlet pipe 12 by welding through a steam inlet pipe elbow 8, the steam inlet pipe is connected with a steam inlet header pipe 18 through a flange 13, and the upper part of the steam inlet header pipe 18 is provided with a steam inlet header pipe inlet 20. The tube tray tail gas tube 16 is welded and communicated with the tube opening of the outer ring of the tube tray through a tail gas elbow 17, the tail gas tube 16 is connected with a tail gas header tube 19 through a tail gas tube flange 15, and a condensate outlet 14 is formed in the lower portion of the tail gas header 19.

The scraper structure that constitutes by cloth scraper bar 23 and cloth scraper 22 sets up in the superiors' tube coils top, and cloth scraper 22 welds on cloth scraper bar 23 with positive and negative 45 degrees, and 45 degrees staggered arrangements of plane contained angle, cloth scraper bar 23 are fixed on driving lever retainer plate 7 by driving lever fixing bolt 9, and the welding has cloth to keep off material circle 21 on the outer lane of tube coils and inner circle tube coils.

The deflector rod 11 is arranged between each layer of pipe coil and is fixed on the deflector rod fixing ring 7 by a deflector rod fixing bolt 9. The deflector rod fixing rings 7 are welded on the central pipe shaft 28 and are uniformly distributed from top to bottom.

The central shaft tube 28 is positioned by the positioning sleeve and 26 as the axis, the positioning sleeve 26 is welded on the upper cover 24, and the positioning rotary disc 27 is welded on the upper part of the central shaft tube 28 and is in sliding fit with the positioning sleeve 26. The transmission mechanism 3 consisting of a motor, a belt pulley and a speed reducer is fixedly arranged on a foundation 4 and is connected with a central shaft tube 28 through a transmission flange 5, the rotating gap of the central shaft tube 28 relative to a bottom plate 40 is sealed by a labyrinth seal 6, and the labyrinth seal 6 is welded on the bottom plate 40.

The bottom plate 40 is provided with a discharging structure consisting of a discharging scraper 39 and a discharging scraper rod 38, the discharging scraper 39 is welded on the discharging scraper rod 38, the discharging scraper rod 38 is fixed on the driving lever fixing ring 7 through a driving lever fixing bolt 9, and the end of the discharging scraper rod 38 is welded with a reinforcing ring 43. The lower part of the dry material outlet 44 arranged on the bottom plate 40 is communicated with the spiral discharging machine 2.

The inner wall of the shell is evenly provided with vertical calandria 33 along the vertical direction, the upper part of the vertical calandria 33 is communicated with the upper header 31 of the vertical calandria in a welding manner, the lower part of the vertical calandria is communicated with the lower header 41 of the vertical calandria in a welding manner, the upper header is provided with an upper header steam inlet 32, and the lower header is provided with a lower header condensate outlet 42.

During operation, wet material is added from wet material inlet 29, scraper 22 is driven to rotate through cloth scraper rod 23, the wet material is evenly distributed on the pipe coil, the wet material falls into the next layer through material annular channel 47 between pipe coil 10, and the material is shifted to remove moisture gas through continuous rotation of shift lever 11 of each lower layer, and the material falls into the next layer through material blanking annular channel 47, so that the drying purpose is achieved. The dried material finally falls onto the bottom plate 40, and the dried material is discharged through the dried material outlet 44 into the spiral discharging machine 2 by the rotation of the discharging scraper plate 39 and the discharging scraper rod 38. The device is filled with materials from top to bottom among all layers of pipe trays in the operation process. High-temperature steam enters from a pipe coil steam inlet header pipe inlet 20 of a pipe coil steam inlet header pipe 18, is distributed to each layer of pipe coils and passes from the inner ring of the pipe coil to the outer ring of the pipe coil through a steam inlet 45, and after the materials are conducted and heated by the outer wall of the pipe coil, tail gas enters a tail gas header pipe 19 to generate condensed water, and the condensed water is discharged from a condensed water outlet 14 and sent back to the water storage tank. The other path of high-temperature steam enters the upper header steam inlet 32 of the upper header 31 of the vertical exhaust pipe and is distributed in each vertical exhaust pipe 33 to go down, and the condensed water is discharged from the lower header condensed water outlet 42 of the lower header 41 of the vertical exhaust pipe and is returned to the water storage tank.

Claims

1. The utility model provides a tube tray formula drying device which characterized in that: the pipe coil structure comprises a cavity structure consisting of an upper cover (24), a shell and a bottom plate (40), wherein multiple layers of pipe coils are arranged in the cavity structure along the vertical direction and are arranged in parallel, the lower part of each layer of pipe coil is welded with a corresponding # -shaped pipe coil bracket (37) into a whole, and the # -shaped pipe coil bracket (37) is welded and fixed with the inner wall of the shell; the pipe coil is a plane pipe coil formed by roasting a pipe coil (10), a steam inlet of the pipe coil (10) is communicated with a steam inlet header pipe (18) through a steam inlet pipe (12), and a gas outlet of the pipe coil (10) is communicated with a tail gas header pipe (19) through a tail gas pipe (16); a scraping structure consisting of a material distribution scraper bar (23) and a material distribution scraper (22) is arranged above the first layer of pipe disc from top to bottom, a deflector rod (11) is respectively arranged above the second layer of pipe disc to the last layer of pipe disc, and the material distribution scraper bar (23) and the deflector rod (11) are respectively in transmission connection with a transmission mechanism through a vertically-installed central shaft tube (28); the upper cover (24) is provided with a wet material inlet (29) and a moisture outlet (25), and the bottom plate (40) is provided with a dry material outlet (44).

2. The pipe-tray type drying apparatus of claim 1, wherein: and in each layer of pipe coil, the pipe orifice of the inner ring of the pipe coil (10) is used as a steam inlet, and the pipe orifice of the outer ring of the pipe coil (10) is used as an air outlet.

3. The pipe-tray type drying apparatus of claim 1, wherein: the material scraping structure is composed of a material distribution scraper rod (23) and a material distribution scraper (22), and the material distribution scraper (22) is welded on the material distribution scraper rod (23) in a positive and negative 45-degree mode.

4. The tube-tray type drying apparatus of claim 1, wherein: the outermost circle and the innermost circle of each layer of pipe coil are respectively welded with a material distribution retaining ring (21).

5. The pipe-tray type drying apparatus of claim 1, wherein: the discharging structure composed of a discharging scraper blade (39) and a discharging scraper blade rod (38) is arranged on the bottom plate (40), the discharging scraper blade rod (38) is fixedly connected to the driving lever fixing ring (7) through a driving lever fixing bolt (9), and a reinforcing ring (43) is welded to the end of the discharging scraper blade rod (38).

6. The tube-tray type drying apparatus of claim 1, wherein: the shell body is composed of an outer shell (36), an inner shell (34) and a heat insulation material (35) clamped between the outer shell (36) and the inner shell (34).

7. The pipe-tray type drying apparatus of claim 1, wherein: the utility model discloses a steam condenser, including shells inner wall, vertical calandria (33), collection case (31) welding UNICOM on the upper portion of vertical calandria (33) and the vertical calandria along vertical direction equipartition, the lower part of vertical calandria (33) and vertical calandria lower header (41) welding UNICOM, vertical calandria upper header (31) are equipped with collection case steam inlet (32), vertical calandria lower header (41) are equipped with lower collection case comdenstion water export (42).

8. The pipe-tray type drying apparatus of claim 1, wherein: the central shaft tube (28) is positioned by taking the positioning sleeve (26) as an axis to rotate, the positioning sleeve (26) is welded on the upper cover (24), and the positioning turntable (27) is welded on the upper part of the central shaft tube (28) and is in sliding fit with the positioning sleeve (26).

9. The tube-tray type drying apparatus of claim 1, wherein: a transmission mechanism (3) composed of a motor, a belt pulley and a speed reducer is fixedly installed on a foundation (4) and is connected with a central shaft tube (28) through a transmission flange (5), a rotating gap of the central shaft tube (28) relative to a bottom plate (40) is sealed through a labyrinth seal (6), and the labyrinth seal (6) is welded on the bottom plate (40).