CN220750760U - Rotary kiln reactor with multilayer cylinders - Google Patents

Abstract

The utility model relates to the technical field of rotary kilns, and discloses a rotary kiln reactor with a multi-layer cylinder, which comprises a rotary cylinder and a driving assembly, wherein a kiln head cover is arranged at one end of the rotary cylinder, and a kiln tail cover is arranged at the other end of the rotary cylinder. Through gyration barrel and drive assembly constitution, drive the gyration barrel through drive assembly and rotate, thereby make the gyration barrel drive first inner tube and second inner tube rotate, can make gyration barrel and inner tube rotate at same axis, can be better calculate its rotational speed according to the different diameter sizes of inner tube, thereby improve workman work efficiency, can carry out spacing and support the gyration barrel through the riding wheel subassembly, prevent that it from taking place the skew when rotating and leading to the machine damage, separate the reaction with the material granule of equidimension not through first screen cloth and second screen cloth, make the material of equidimension not carry out the layering, the dwell time of having changed different granule size materials, make dwell time and the required time of reaction match, thereby improve the reaction efficiency of material.

Description

Rotary kiln reactor with multilayer cylinders

Technical Field

The utility model relates to the technical field of rotary kilns, in particular to a rotary kiln reactor with a multi-layer cylinder.

Background

The rotary kiln is a continuous rotary reactor device, is widely applied to a plurality of fields such as building materials, metallurgy, chemical industry, environmental protection and the like, is used for heating, drying, mixing, baking, calcining, burning, reducing, cooling and the like of loose solid materials, and has the advantages of stable operation, low failure rate, small abrasion, wide adjustable range and the like.

The existing rotary kiln is designed as a single cylinder, however, from the basic common knowledge of mass transfer and heat transfer basic principles, reaction kinetics and the like, the larger the material particles are, the longer the reaction time is needed, and the contradiction between the residence time characteristics of the rotary kiln reactor and the reaction time is caused, which can result in: in the materials entering the rotary kiln reactor, large-particle materials are discharged after the complete reaction, or in order to ensure the complete reaction of the large-particle materials, the residence time of all the materials must be prolonged at the same time, the reaction efficiency of small-particle materials is reduced, the reaction time of the small-particle materials is easy to be excessively long and damaged, gears are easy to shift in the rotating process, so that a machine is damaged, the materials are easy to scatter during feeding of a feeding port, the waste of the materials is caused, and when the kiln hood part is excessively scattered, the machine is easy to block and damage due to excessive scattering of the materials, so that the rotary kiln reactor with the multilayer cylinder is provided, and the problem is solved.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a rotary kiln reactor with a multilayer cylinder, which has the advantages of separating and reacting materials with different particle sizes, improving the material reaction efficiency and the like, and solves the problems that the existing rotary kiln is designed as a single cylinder, however, as known from basic common knowledge such as mass and heat transfer basic principles, reaction dynamics and the like, the larger the material particles, the longer the required reaction time, and the contradiction between the residence time characteristic of the rotary kiln reactor and the time required by the reaction can be caused: in the materials entering the rotary kiln reactor, large-particle materials are discharged after the complete reaction, or in order to ensure the complete reaction of the large-particle materials, the residence time of all the materials must be prolonged at the same time, the reaction efficiency of small-particle materials is reduced, the reaction time of the small-particle materials is easy to be excessively long and damaged, gears are easy to shift in the rotating process, so that a machine is damaged, the materials are easy to scatter when a feed inlet feeds, the materials are wasted, and the problem that the machine is blocked and damaged is easy to occur when the kiln hood part is excessively scattered.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a rotary kiln reactor of multilayer barrel, includes gyration barrel and drive assembly, the one end of gyration barrel is equipped with the kiln hood, the other end of gyration barrel is equipped with kiln tail hood, the outside both ends of gyration barrel are equipped with the retainer plate, the bottom of retainer plate is equipped with the riding wheel subassembly, the outside central authorities of gyration barrel are equipped with drive assembly, the inside of gyration barrel is equipped with first inner tube through first support, the inside of first inner tube is equipped with the second inner tube through the second support.

Preferably, the top of kiln head cover is equipped with the gas outlet, one side of kiln head cover is equipped with into the hopper through the pan feeding mouth, the second inner tube links to each other with into the hopper through inside hollow groove.

Preferably, a discharge hole is formed in the bottom of the kiln tail cover, an air inlet is formed in one side of the kiln tail cover through a groove formed in the kiln tail cover, and the other side of the kiln tail cover is connected with the rotary cylinder.

Preferably, the outside of first inner tube is equipped with first screen cloth, the outside of second inner tube is equipped with the second screen cloth, gyration barrel is equipped with ejection of compact valve with first inner tube, be equipped with ejection of compact valve between first inner tube and the second inner tube, the inside of second inner tube is equipped with the baffle through hollow groove, be equipped with ejection of compact valve between the inner wall of baffle and second inner tube, the quantity of ejection of compact valve is three, the sieve mesh size of first screen cloth is four centimetres, the sieve mesh size of second screen cloth is two centimetres, the barrel horizontal inclination of gyration barrel is 1.72, the length of gyration barrel is 10 meters.

Preferably, the riding wheel assembly comprises a supporting plate A, a baffle and riding wheels, wherein the baffle is arranged at the top of the supporting plate A, two riding wheels are arranged between the two baffles, the number of the riding wheels is two, the tops of the two riding wheels are connected with two fixing rings, the number of the riding wheel assembly is two, and the number of the fixing rings is two.

Preferably, the drive assembly includes backup pad B, connecting plate, motor, driving gear, driven gear and spacing box, backup pad B's top is equipped with the motor through the connecting plate, the output of motor is equipped with the driving gear, the driving gear meshing has driven gear, driven gear's bottom outside is equipped with spacing box, driven gear's inboard links to each other with the gyration barrel, spacing box's bottom links to each other with backup pad B, one side of spacing box links to each other with driven gear through recess and pivot of seting up.

(III) beneficial effects

Compared with the prior art, the rotary kiln reactor with the multilayer cylinder has the following beneficial effects:

1. this rotary kiln reactor of multilayer barrel, constitute through gyration barrel and drive assembly, drive gyration barrel through drive assembly and rotate, thereby make gyration barrel drive first inner tube and second inner tube rotate, can make gyration barrel and inner tube rotate at same axis, can be better calculate its rotational speed according to the different diameter sizes of inner tube, thereby improve workman work efficiency, can carry out spacing and support to gyration barrel through the riding wheel subassembly, prevent that it from taking place the skew when rotating and leading to the machine damage, can separate the reaction with the material granule of equidimension not through first screen cloth and second screen cloth, layering the material of equidimension not, the dwell time of the equidimension material of different particles has been changed, make dwell time and the required time of reaction match, thereby improve the reaction efficiency of material.

2. This rotary kiln reactor of multilayer barrel, drive assembly passes through the motor and drives the driving gear and rotate, thereby make driven gear drive gyration barrel rotate, can prevent that driven gear from taking place the skew at pivoted in-process through the limiting plate, thereby break away from and rotate the gear and lead to the machine to take place to damage, riding wheel subassembly passes through baffle and riding wheel and carries out spacingly to the retainer plate, thereby make gyration barrel carry out spacingly, prevent that it takes place the damage that the skew leads to the machine at the in-process that rotates, can make the accurate fall into the second inner tube of material through going into the hopper, prevent that the material from scattering, thereby lead to the phenomenon that the machine from taking place to jam and extravagant, can prevent through the baffle that the material from going out the phenomenon that splashes leads to waste at the discharge gate when inner tube reaction, can control the outflow of different materials through the valve, prevent that the material of different granule sizes from mixing, be difficult to handle.

Drawings

FIG. 1 is a schematic diagram of a planar structure of a rotary kiln reactor according to the present utility model;

FIG. 2 is a schematic plan view of a rotary cylinder according to the present utility model;

FIG. 3 is a schematic diagram of a riding wheel assembly according to the present utility model;

FIG. 4 is a schematic diagram of a rotary kiln reactor according to the present utility model;

FIG. 5 is a schematic view of a first inner barrel according to the present utility model;

fig. 6 is a schematic diagram of a driving gear structure according to the present utility model.

In the figure: 1. a rotary cylinder; 2. a kiln head cover; 3. a kiln tail hood; 4. a fixing ring; 5. a riding wheel assembly; 6. a drive assembly; 7. a first bracket; 8. a first inner cylinder; 9. a second bracket; 10. a second inner cylinder; 11. a partition plate; 12. a discharge valve; 13. an air inlet; 14. a discharge port; 15. feeding into a hopper; 16. a first screen; 17. a second screen; 18. a feed inlet; 19. an air outlet; 501. a support plate A; 502. a baffle; 503. a riding wheel; 601. a support plate B; 602. a connecting plate; 603. a motor; 604. a drive gear; 605. a driven gear; 606. and a limit box.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-6, a rotary kiln reactor with a multilayer cylinder body comprises a rotary cylinder body 1 and a driving assembly 6, wherein a kiln hood 2 is arranged at one end of the rotary cylinder body 1, a kiln tail hood 3 is arranged at the other end of the rotary cylinder body 1, fixing rings 4 are arranged at two ends of the outer side of the rotary cylinder body 1, a riding wheel assembly 5 is arranged at the bottom of each fixing ring 4, the driving assembly 6 is arranged at the center of the outer side of the rotary cylinder body 1, a first inner cylinder 8 is arranged in the rotary cylinder body 1 through a first support 7, a second inner cylinder 10 is arranged in the first inner cylinder 8 through a second support 9, the rotary cylinder body 1 and the driving assembly 6 are combined, and the rotary cylinder body 1 is driven to rotate through the driving assembly 6, so that the rotary cylinder body 1 and the inner cylinders are driven to rotate on the same axis, the rotating speeds of the rotary cylinder body 1 can be calculated according to different diameters of the inner cylinders, thereby improving working efficiency of workers, limiting and supporting the rotary cylinder body 1 through the riding wheel assembly 5, preventing the rotary cylinder body from deviating when rotating to cause damage to a machine, the first inner cylinder 16 and the second inner cylinder 17 can be separated, particles can be different in different sizes, the particle sizes can be separated, the particle sizes can be different particle sizes can be mixed, the reaction time can be changed, and the reaction time can be prolonged.

When the kiln is used, as shown in fig. 1 and 4, the top of the kiln hood 2 is provided with an air outlet 19, one side of the kiln hood 2 is provided with a feeding hopper 15 through a feeding port 18, the second inner cylinder 10 is connected with the feeding hopper 15 through an internal hollow groove, the bottom of the kiln tail hood 3 is provided with a discharging port 14, one side of the kiln tail hood 3 is provided with an air inlet 13 through a groove, the other side of the kiln tail hood 3 is connected with the rotary cylinder 1, materials can accurately fall into the second inner cylinder 10 through the feeding hopper 15, and the materials are prevented from scattering, so that the phenomenon of blockage and waste of a machine is caused.

When in use, as shown in fig. 2 and 5, the first screen 16 is arranged on the outer side of the first inner cylinder 8, the second screen 17 is arranged on the outer side of the second inner cylinder 10, the rotary cylinder 1 and the first inner cylinder 8 are provided with discharge valves 12, the discharge valves 12 are arranged between the first inner cylinder 8 and the second inner cylinder 10, the partition 11 is arranged in the second inner cylinder 10 through a hollow groove, the discharge valves 12 are arranged between the partition 11 and the inner wall of the second inner cylinder 10, the number of the discharge valves 12 is three, the mesh size of the first screen 16 is four centimeters, the mesh size of the second screen 17 is two centimeters, the horizontal inclination angle of the cylinder body of the rotary cylinder 1 is 1.72 degrees, the length of the rotary cylinder 1 is 10 meters, the time from entering the rotary kiln to discharging rotary kiln is called as the retention time, the retention time is related to factors such as the length, diameter, rotation speed, inclination angle of the cylinder body and natural inclination angle of the materials, etc., the calculation formula of the retention time of the materials without plates in the cylinder is shown in the table according to the standard chemical rotary kiln design rules HT 20566:

in the middle of

t ₁ Material residence time (unit: min)

L-length of cylinder (unit: m)

D _i Diameter of cylinder (unit: m)

θ -Natural inclination of material (unit: °)

Alpha-barrel inclination angle (unit: °)

n-rotating speed (unit: r/min)

From this equation, it can be seen that the residence time increases as the natural inclination of the material increases. The natural inclination angle of the common material is between 30 and 40 degrees, and the size of the common material is influenced by the factors of the particle shape, the surface smoothness, the water content, the inclusion and the like. For the same material, the smaller the particles, the larger the natural inclination angle. That is, after the materials with different particle sizes enter the rotary kiln, as the length of the cylinder, the inner diameter of the cylinder, the horizontal inclination angle of the cylinder and the rotating speed are all the same, the smaller the particles, the longer the stay time, the materials with different particle sizes can be separated for reaction through the first screen 16 and the second screen 17, the materials with different particle sizes are layered, the stay time of the materials with different particle sizes is changed, and the stay time is matched with the reaction time, so that the reaction efficiency of the materials is improved.

When in use, as shown in fig. 3 and 4, the riding wheel assembly 5 comprises a supporting plate A501, a baffle 502 and riding wheels 503, wherein the baffle 502 is arranged at the top of the supporting plate A501, the riding wheels 503 are arranged between the two baffles 502, the number of the riding wheels 503 is two, the tops of the two riding wheels 503 are connected with the fixing rings 4, the number of the riding wheel assembly 5 is two, the number of the fixing rings 4 is two, and the fixing rings 4 are limited through the baffle 502 and the riding wheels 503, so that the rotary cylinder 1 is limited, and the machine damage caused by deflection during rotation is prevented.

When in use, as shown in fig. 4 and 6, the driving assembly 6 comprises a supporting plate B601, a connecting plate 602, a motor 603, a driving gear 604, a driven gear 605 and a limiting box 606, wherein the motor 603 is arranged at the top of the supporting plate B601 through the connecting plate 602, the driving gear 604 is arranged at the output end of the motor 603, the driven gear 605 is meshed with the driving gear 604, the limiting box 606 is arranged at the outer side of the bottom of the driven gear 605, the inner side of the driven gear 605 is connected with the rotary cylinder 1, the bottom of the limiting box 606 is connected with the supporting plate B601, one side of the limiting box 606 is connected with the driven gear 605 through a groove and a rotating shaft which are arranged, the driven gear can be prevented from shifting in the rotating process, so that the machine is damaged due to the fact that the driven gear is separated from the rotating gear, the rotary cylinder 1 drives the first inner cylinder 8 and the second inner cylinder 10 to rotate on the same axis, the rotating speed of the rotary cylinder 1 can be calculated according to different diameters of the inner cylinders, and the working efficiency of workers can be improved.

In summary, through the composition of rotary cylinder 1 and drive assembly 6, firstly, send the material into the second inner tube through the pan feeding hopper, drive rotary cylinder 1 through drive assembly 6 and rotate, drive assembly 6 passes through motor 603 and drives driving gear 604 and rotate, thereby make driven gear 605 drive rotary cylinder 1 and rotate, can prevent that driven gear from taking place the skew at pivoted in-process through spacing box 606, thereby break away from the rotation gear and lead to the machine to take place to damage, thereby make rotary cylinder 1 drive first inner tube 8 and second inner tube 10 and rotate, make rotary cylinder 1 rotate at same axis with the inner tube, can carry out spacing and support to rotary cylinder 1 through riding wheel subassembly 5, riding wheel subassembly 5 carries out spacing through baffle 502 and riding wheel 503 to retainer plate 4, thereby make rotary cylinder 1 carry out spacing, prevent that it from taking place the skew when rotating and lead to the machine to damage, can separate the reaction with the material granule of different sizes through first screen 16 and second screen 17, the dwell time of different granule size materials has been changed, make dwell time and reaction required time match, thereby improve the reaction efficiency of material.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. A rotary kiln reactor with a multi-layer cylinder, comprising a rotary cylinder (1) and a drive assembly (6), characterized in that: one end of the rotary cylinder body (1) is provided with a kiln hood (2), the other end of the rotary cylinder body (1) is provided with a kiln tail hood (3), two ends of the outer side of the rotary cylinder body (1) are provided with fixing rings (4), the bottoms of the fixing rings (4) are provided with riding wheel assemblies (5), the outer center of the rotary cylinder body (1) is provided with a driving assembly (6), the inner part of the rotary cylinder body (1) is provided with a first inner cylinder (8) through a first support (7), and the inner part of the first inner cylinder (8) is provided with a second inner cylinder (10) through a second support (9).

2. A rotary kiln reactor of the multi-layer cylinder type according to claim 1, wherein: the top of kiln head hood (2) is equipped with gas outlet (19), one side of kiln head hood (2) is equipped with into hopper (15) through pan feeding mouth (18), second inner tube (10) link to each other with into hopper (15) through inside hollow groove.

3. A rotary kiln reactor of the multi-layer cylinder type according to claim 1, wherein: the bottom of the kiln tail cover (3) is provided with a discharge hole (14), one side of the kiln tail cover (3) is provided with an air inlet (13) through a groove, and the other side of the kiln tail cover (3) is connected with the rotary cylinder body (1).

4. A rotary kiln reactor of the multi-layer cylinder type according to claim 1, wherein: the novel rotary drum is characterized in that a first screen (16) is arranged on the outer side of the first inner drum (8), a second screen (17) is arranged on the outer side of the second inner drum (10), a discharge valve (12) is arranged between the rotary drum body (1) and the first inner drum (8), a discharge valve (12) is arranged between the first inner drum (8) and the second inner drum (10), a partition plate (11) is arranged in the second inner drum (10) through a hollow groove, and discharge valves (12) are arranged between the partition plate (11) and the inner wall of the second inner drum (10), and the number of the discharge valves (12) is three.

5. A multi-layer cartridge rotary kiln reactor according to claim 4, wherein: the sieve mesh size of the first screen (16) is four centimeters, the sieve mesh size of the second screen (17) is two centimeters, the horizontal inclination angle of the rotary cylinder body (1) is 1.72 degrees, and the length of the rotary cylinder body (1) is 10 meters.

6. A rotary kiln reactor of the multi-layer cylinder type according to claim 1, wherein: the riding wheel assembly (5) comprises a supporting plate A (501), baffles (502) and riding wheels (503), wherein the baffles (502) are arranged at the top of the supporting plate A (501), and riding wheels (503) are arranged between the two baffles (502).

7. A rotary kiln reactor of the multi-layer cylinder type according to claim 1, wherein: the number of the riding wheels (503) is two, the tops of the two riding wheels (503) are connected with the fixed rings (4), the number of the riding wheel assemblies (5) is two, and the number of the fixed rings (4) is two.

8. A rotary kiln reactor of the multi-layer cylinder type according to claim 1, wherein: the driving assembly (6) comprises a supporting plate B (601), a connecting plate (602), a motor (603), a driving gear (604), a driven gear (605) and a limiting box (606), wherein the motor (603) is arranged at the top of the supporting plate B (601) through the connecting plate (602), the driving gear (604) is arranged at the output end of the motor (603), the driven gear (605) is meshed with the driving gear (604), and the limiting box (606) is arranged at the outer side of the bottom of the driven gear (605).

9. A rotary kiln reactor of the multi-layer cartridge type according to claim 8, wherein: the inner side of the driven gear (605) is connected with the rotary cylinder body (1), the bottom of the limit box (606) is connected with the support plate B (601), and one side of the limit box (606) is connected with the driven gear (605) through a groove and a rotating shaft.