CN209944989U

CN209944989U - Reduced metal rotary kiln

Info

Publication number: CN209944989U
Application number: CN201920505693.8U
Authority: CN
Inventors: 王立博
Original assignee: Shijiazhuang Luyuan Welding Materials Co Ltd
Current assignee: Shijiazhuang Luyuan Welding Materials Co Ltd
Priority date: 2019-04-15
Filing date: 2019-04-15
Publication date: 2020-01-14
Anticipated expiration: 2029-04-15

Abstract

The utility model discloses a reduced metal rotary kiln, which comprises a kiln tail smoke chamber, a cylinder body, a large gear ring, a kiln head cover, a main rotating motor and a transition belt, one end of the cylinder body is connected with the kiln tail smoke chamber, the other end of the cylinder body is connected with the kiln head cover, a large gear ring is sleeved on the periphery of one side of the cylinder body, one side of the bottom of the cylinder body is fixedly provided with a mounting frame through a ground pile, one side of the top of the mounting frame is provided with a main rotating motor through a bolt, a motor rotating speed controller is arranged on one side of the main rotating motor through a bolt, the main rotating motor is electrically connected with the motor rotating speed controller, a speed reducer is arranged on one side of the main rotating motor through a bolt, the output end on one side of the main rotating motor is connected with the input end on one side of the speed reducer, the speed reducer opposite side has the drive pivot, drive pivot periphery is through bolt installation drive gear and bull gear meshing connection. The utility model discloses reduction metal rotary kiln, reasonable in design, the function is stable, is convenient for adjust, is fit for being extensively promoted and used.

Description

Reduced metal rotary kiln

Technical Field

The utility model relates to a rotary kiln technical field, in particular to reduction metal rotary kiln.

Background

In many production industries such as building materials, metallurgy, chemical industry, environmental protection and the like, a rotary round preparation is widely used for carrying out mechanical, physical or chemical treatment on solid materials, the equipment is called a rotary kiln, the rotary kiln is generally divided into a rotary kiln body which is horizontally arranged (with a slight inclination) and can do rotary motion, called a rotary kiln and called a rotary kiln, a layer of refractory bricks with the thickness of about 200mm is built inside a traditional kiln shell for better heat preservation, the weight ratio of the kiln shell is large, and the kiln shell can deform in an oval shape due to the relationship between high temperature and bearing when the kiln shell is in operation, so that pressure can be generated on the kiln bricks, and the service life of the kiln bricks is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a reduction metal rotary kiln, replace traditional resistant firebrick through setting up ZS-1 high temperature resistant thermal-insulated heat preservation dope layer and carborundum layer combination at the barrel internal surface, thereby greatly reduced kiln shell weight ratio, ZS-1 high temperature resistant thermal-insulated heat preservation dope can effectively restrain and shield infrared radiant heat and thermal conduction heat, thermal-insulated heat preservation suppression efficiency can reach about 90%, can restrain the thermal radiation of high temperature object and thermal conduction and scatter and disappear, can keep 70% not to scatter to the inside heat of rotary kiln, and then reduce the electric energy loss that the rotary kiln need continuously heat (maintain the high temperature) and bring because of main rotation motor high load work and firing equipment, energy-concerving and environment-protective, can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a reduced metal rotary kiln comprises a kiln tail smoke chamber, a cylinder body, a bull gear, a kiln head cover, a main rotating motor and a transition belt, wherein one end of the cylinder body is connected with the kiln tail smoke chamber, the other end of the cylinder body is connected with the kiln head cover, the bull gear is sleeved on the periphery of one side of the cylinder body, one side of the bottom of the cylinder body is fixedly installed on a mounting rack through a ground pile, one side of the top of the mounting rack is provided with the main rotating motor through a bolt, one side of the main rotating motor is provided with a motor speed controller through a bolt, the main rotating motor is electrically connected with the motor speed controller, one side of the main rotating motor is provided with a speed reducer through a bolt, the output end of one side of the main rotating motor is connected with the input end of one side of the speed reducer, the other side of the speed, and a ZS-1 high-temperature-resistant heat-insulating coating layer is coated between the silicon carbide layer and the cylinder body.

Further, be the heliciform in the barrel, from left to right distribute in proper order in the barrel and preheat area, transition zone, burning zone and cooling zone, the barrel is equipped with the kiln tail with kiln tail smoke-box junction and seals, screw installation temperature sensor is passed through to barrel top one side, temperature sensor's sense terminal is located the transition zone of barrel.

Furthermore, a feed inlet communicated with the barrel is formed in one side of the kiln tail smoke chamber, and a discharge outlet communicated with the barrel is formed in one side of the kiln head cover.

Furthermore, a belt is sleeved on the periphery of the other side of the cylinder body, supporting wheels corresponding to the belt are installed at the bottom of the belt through supporting frames, and a plurality of groups of belts and supporting wheels are arranged.

Furthermore, a smoke exhaust pipe is welded to the top of the interior of the kiln tail smoke chamber, and a smoke exhaust port is formed in the top end of the smoke exhaust pipe and is located at the top of the kiln tail smoke chamber.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the traditional refractory brick is replaced by arranging the combination of the ZS-1 high-temperature-resistant heat-insulating coating layer (a product of Beijing Rongli science and technology Co., Ltd.) and the silicon carbide layer on the inner surface of the cylinder, so that the weight ratio of the kiln shell is greatly reduced, the ZS-1 high-temperature-resistant heat-insulating coating can effectively inhibit and shield infrared radiation heat and heat conduction heat, the heat-insulating inhibition efficiency can reach about 90 percent, the heat radiation and heat conduction loss of a high-temperature object can be inhibited, 70 percent of heat in the rotary kiln can be kept not to be dissipated, the electric energy loss of the rotary kiln caused by high-load work of a main rotating motor and continuous heating (high temperature maintenance) of heating equipment is further reduced, and the rotary kiln is energy-saving and environment.

2. Through setting up motor speed controller (Leqing health permanent electrical technology ltd products, model JD1A-40) to the personnel can calcine pushing rate difference according to reduction metal calcination time and gyration, and then use motor speed controller to adjust main rotation motor speed, finally change the barrel rotational speed and accomplish the operation.

3. Through setting up temperature sensor to temperature sensor can real-time supervision barrel the transition in-band temperature to show on its display that is equipped with, and then make things convenient for personnel to know whether the temperature that the reduction metal ore bore in the transition in-band reaches the calcination requirement.

Drawings

Fig. 1 is a schematic view of the overall structure of a reduced metal rotary kiln of the present invention.

Fig. 2 is a schematic diagram of the kiln tail smoke chamber and the inner structure of the cylinder of the reduced metal rotary kiln of the utility model.

FIG. 3 is a schematic view of the sectional structure of the material layer on the inner surface of the cylinder of the rotary kiln for reducing metals of the present invention.

In the figure: 1. a kiln head cover; 2. a discharge port; 3. a belt wheel; 4. a riding wheel; 5. a barrel; 6. a support frame; 7. a temperature sensor; 8. a large gear ring; 9. driving the rotating shaft; 10. a drive gear; 11. a speed reducer; 12. a main rotating motor; 13. a motor speed controller; 14. a mounting frame; 15. sealing the kiln tail; 16. a smoke outlet; 17. a kiln tail smoke chamber; 18. a feed inlet; 19. a smoke exhaust pipe; 20. preheating a belt; 21. a transition zone; 22. burning the mixture into a belt; 23. a cooling zone; 24. a silicon carbide layer; 25. ZS-1 high temperature resistant heat insulation coating layer.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1-3, a reduced metal rotary kiln comprises a kiln tail smoke chamber 17, a cylinder 5, a bull gear 8, a kiln head cover 1, a main rotating motor 12 and a transition belt 21, wherein one end of the cylinder 5 is connected with the kiln tail smoke chamber 17, the other end of the cylinder 5 is connected with the kiln head cover 1, the bull gear 8 is sleeved on the periphery of one side of the cylinder 5, one side of the bottom of the cylinder 5 is fixed with a mounting rack 14 through a ground pile, one side of the top of the mounting rack 14 is provided with the main rotating motor 12 through a bolt, one side of the main rotating motor 12 is provided with a motor rotating speed controller 13 through a bolt, the main rotating motor 12 is electrically connected with the motor rotating speed controller 13, one side of the main rotating motor 12 is provided with a speed reducer 11 through a bolt, the output end of one side of the main rotating motor 12 is connected with the input end of the speed reducer 11, the other side of the speed reducer is provided, the surface of the cylinder body 5 is provided with a silicon carbide layer 24, and a ZS-1 high-temperature-resistant heat-insulating coating layer 25 is coated between the silicon carbide layer 24 and the cylinder body 5.

Wherein, be the heliciform in the barrel 5, preheat area 20, transition zone 21, burning zone 22 and cooling zone 23 distribute in proper order from left to right in the barrel 5, barrel 5 is equipped with kiln tail seal 15 with kiln tail smoke chamber 17 junction, screw installation temperature sensor 7 is passed through to barrel 5 top one side, the sense terminal of temperature sensor 7 is located the transition zone 21 of barrel 5.

In this embodiment, as shown in fig. 1 and 2, a preheating zone 20, a transition zone 21, a burning zone 22 and a cooling zone 23 are distributed in the cylindrical body 5, so that the raw material put into the cylindrical body 5 from the feed port 18 can be preheated by the preheating zone 20, the transition zone 21 is burned to produce clinker, the clinker is stored in the burning zone 22, and finally the raw material is converted into clinker by heat exchange through the driving force of the rotation of the cylindrical body 5 to the cooling zone 23.

Wherein, kiln tail smoke chamber 17 one side has the feed inlet 18 with barrel 5 intercommunication, kiln hood 1 one side has the discharge gate 2 with barrel 5 intercommunication.

In the embodiment, as shown in fig. 1 and 2, a feed inlet 18 at one side of a kiln tail smoke chamber 17 can facilitate production personnel to add reduced metal ores with calcination, and clinker generated by calcination is discharged from a discharge outlet 2 after being cooled.

The periphery of the other side of the cylinder body 5 is sleeved with a belt 3, the bottom of the belt 3 is provided with a supporting wheel 4 corresponding to the belt through a supporting frame 6, and the belt 3 and the supporting wheel 4 are provided with multiple groups.

In this embodiment, as shown in fig. 1, when the main rotating motor 12 drives the cylinder 5 to rotate through the speed reducer 11 and the bull gear 8, the belt 3 can drive the riding wheel 4 to rotate, so as to ensure the stress rotation balance of each part of the cylinder 5, further reduce the electric energy loss of the main rotating motor 12, and ensure the stable rotation of the cylinder 5.

The top of the interior of the kiln tail smoke chamber 17 is welded with a smoke exhaust pipe 19, the top end of the smoke exhaust pipe 19 is provided with a smoke exhaust port 16, and the smoke exhaust port 16 is located at the top of the kiln tail smoke chamber 17.

In this embodiment, as shown in FIG. 2, the flue gas dust generated by calcining and reducing the metal ores in the barrel 5 can be discharged from the flue gas discharge pipe 19 to the outside of the kiln tail gas chamber 17.

It should be noted that, the utility model relates to a reduced metal rotary kiln, during operation, a person connects the exhaust port 16 at the top of the kiln tail smoke chamber 17 with an external surface air cooler and a bag-type dust remover, a person connects the power line of the rotary kiln with an external power supply mechanism, and controls the preheating zone 20, the transition zone 21, the burning zone 22 and the cooling zone 23 in the cylinder 5 to carry out preheating, calcining and heating operations, the person puts the reduced metal ore to be calcined into the cylinder 5 from the feed port 18, the person controls the main rotating motor 12 to work, the preheating zone 20 in the cylinder 5 completes the preheating of the reduced metal ore, the transition zone 21 completes the calcining of the reduced metal ore, the main rotating motor drives the speed reducer 11 to work, the speed reducer 11 can be subjected to speed reduction adjustment, and then the cylinder 5 is driven to rotate at low speed, the driving force of the cylinder 5 to rotate the burning zone 22 and the cooling zone 23 of the finally completed calcined reduced metal ore, after heat exchange, raw materials are converted into clinker and finally discharged from a discharge port 2 on one side of a kiln head cover 1, in the processing operation, personnel can adjust the rotating speed of a main rotating motor 12 by using a motor rotating speed controller 13 according to different calcination time and rotary calcination pushing speed of reduced metal, finally the rotating speed of a cylinder 5 is changed to finish operation, smoke dust generated by calcining reduced metal ores in the cylinder 5 can be discharged to a surface cooler and a bag-type dust remover from a smoke discharge pipe 19, and the smoke dust is cooled and dedusted, filtered into clean gas and discharged to the air.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a reduction metal rotary kiln, includes kiln tail smoke chamber (17), barrel (5), bull gear (8), kiln hood cover (1), main rotating electrical machines (12) and transition zone (21), its characterized in that: kiln tail smoke chamber (17) is connected to barrel (5) one end, kiln hood cover (1) is connected to the barrel (5) other end, bull gear (8) is cup jointed in barrel (5) one side periphery, barrel (5) bottom one side is through ground stake fixed mounting frame (14), main motor (12) of rotating of bolt installation is passed through to mounting frame (14) top one side, main motor rotational speed controller (13) of rotating of bolt installation is passed through to main motor (12) one side, main motor (12) of rotating is electrically connected with motor rotational speed controller (13), main motor (12) one side is through bolt installation speed reducer (11), speed reducer (11) one side input is connected to main motor (12) one side output, speed reducer (11) opposite side has drive pivot (9), drive pivot (9) periphery is connected with bull gear (8) meshing through bolt installation drive gear (10) and drive gear (10), the inner surface of the cylinder body (5) is provided with a silicon carbide layer (24), and a ZS-1 high-temperature-resistant heat-insulating coating layer (25) is coated between the silicon carbide layer (24) and the cylinder body (5).

2. A reduced metal rotary kiln as defined in claim 1, wherein: be the heliciform in barrel (5), from left to right in barrel (5) distribute in proper order preheating zone (20), transition zone (21), burning zone (22) and cooling zone (23), barrel (5) and kiln tail smoke chamber (17) junction are equipped with kiln tail seal (15), screw installation temperature sensor (7) are passed through to barrel (5) top one side, the sense terminal of temperature sensor (7) is located transition zone (21) of barrel (5).

3. A reduced metal rotary kiln as defined in claim 1, wherein: one side of the kiln tail smoke chamber (17) is provided with a feeding hole (18) communicated with the cylinder body (5), and one side of the kiln head cover (1) is provided with a discharging hole (2) communicated with the cylinder body (5).

4. A reduced metal rotary kiln as defined in claim 1, wherein: the wheel belt (3) is sleeved on the periphery of the other side of the cylinder body (5), the supporting wheels (4) corresponding to the wheel belt (3) are installed at the bottom of the wheel belt (3) through the supporting frame (6), and multiple groups of wheel belts (3) and supporting wheels (4) are arranged.

5. A reduced metal rotary kiln as defined in claim 1, wherein: and a smoke exhaust pipe (19) is welded at the inner top of the kiln tail smoke chamber (17), a smoke exhaust port (16) is formed in the top end of the smoke exhaust pipe (19), and the smoke exhaust port (16) is located at the top of the kiln tail smoke chamber (17).