CN212378483U - Rotary kiln with barrel temperature capable of being automatically adjusted - Google Patents

Abstract

The application discloses a rotary kiln capable of automatically adjusting temperature, and relates to a rotary kiln. The outer barrel that is of rotary kiln, the rotary kiln installs waste heat recovery device, and it includes: the water inlet pipeline, the first rotating device, the cooling module, the second rotating device and the water outlet pipeline are sequentially connected, and the water inlet pipeline, the first rotating device, the cooling module, the second rotating device and the water outlet pipeline further comprise a PLC controller. Because this application does not continue to use traditional forced air cooling, practices thrift cooling blower investment cost and running cost. The cylinder of the rotary kiln is fully covered with the cooling device, so that the heat of the cylinder of the rotary kiln can be rapidly transferred to the cooling device. The temperature of the rotary kiln barrel can be automatically adjusted by adjusting the water inlet and outlet quantity of the cooling device through the control system, and the rotary kiln barrel is not overheated, so that a rotary kiln barrel scanner is not required to be applied, and a large investment is saved. This application carries out waste heat recovery simultaneously. If the urea solution is sent to a waste heat power generation system for power generation, or sent to a denitration system for urea solution dissolution heating and heat tracing.

Description

Rotary kiln with barrel temperature capable of being automatically adjusted

Technical Field

The application relates to a rotary kiln, in particular to a rotary kiln with a barrel temperature capable of being automatically adjusted.

Background

The rotary kiln is a rotary calcining kiln (commonly called rotary kiln) and belongs to building material equipment. Rotary kilns can be divided into cement kilns, metallurgical chemical kilns and lime kilns according to the different materials to be treated. The rotary kiln can generate a large amount of heat in the operation process, and the surface temperature of the cylinder body of the rotary kiln can reach 400-500 ℃.

In order to prevent the normal operation of the rotary kiln from being influenced by the overhigh surface temperature. Most of factory buildings in the market at present are cooled by forced air cooling through more than ten high-power blowers.

The forced air cooling mode is adopted, and the cooling effect is achieved, but the following defects exist:

1) the running power consumption of more than ten high-power blowers is very large, and the running cost is increased. For example: a10000 t/d rotary kiln needs 20 axial flow fans of 7.5kW for air cooling. Each blower costs about 3000 yuan. 6 ten thousand dollars of procurement cost are required for 20 hair dryers. And 108000 yuan is consumed per month according to the electricity consumption of one degree and one block.

2) The heat on the surface of the cylinder of the rotary kiln is blown away and wasted.

Therefore, it is highly desirable to develop a rotary kiln that can save the running cost and can recover the waste heat.

SUMMERY OF THE UTILITY MODEL

It is an object of the present application to overcome the above problems or to at least partially solve or mitigate the above problems.

The application provides but barrel temperature automatically regulated's rotary kiln, the outer barrel that is of rotary kiln, waste heat recovery device is installed to the rotary kiln, waste heat recovery device links to each other with the waste heat utilization equipment, include:

the water inlet pipeline is connected with an external water source and used for conveying cold water;

a first rotating device installed at an outer surface of the cylinder and fixedly connected with the cylinder to rotate along with the cylinder, the first rotating device being configured to be connected with the water inlet pipeline and output water in the water inlet pipeline;

the cooling module is connected with the first rotating device so as to input water output by the first rotating device into the cooling module, and the cooling module is configured to fully cover the outer surface of the barrel so as to cool the whole barrel;

a second rotating device installed at an outer surface of the cylinder and fixedly connected with the cylinder to rotate along with the cylinder, the second rotating device being configured to be connected with the cooling module and output water in the cooling module;

the water outlet pipeline is connected with the second rotating device and used for conveying the hot water output by the second rotating device to the waste heat utilization device; and

and the PLC is used for acquiring the water temperature of the water outlet pipeline and controlling the water inlet and outlet amount of the cooling module according to the water temperature so as to realize the automatic adjustment of the temperature of the cylinder.

Optionally, the water inlet pipeline includes first ball valve, cold water tank, second ball valve, first water pump, first check valve, third ball valve and the flowmeter through the tube coupling, first to third ball valve all are used for controlling the flow of water, the cold water tank is used for storing cold water, first water pump is used for cold water pressurization, first check valve is used for preventing water backflow to first water pump, the flowmeter is used for detecting the flow of first water pump outflow water.

Optionally, the water inlet pipeline further comprises a first filter, which is arranged between the first water pump and the second ball valve, and is used for filtering water before entering the first water pump, so as to increase the service life of the first water pump.

Optionally, outlet conduit includes temperature transmitter, fourth ball valve, hot water tank, fifth ball valve, second water pump, second check valve and the sixth ball valve through the tube coupling, temperature transmitter is used for detecting the hot-water temperature of cooling module outflow, fourth to sixth ball valve all are used for controlling the flow of water, hot water tank is used for saving hot water, the second water pump is used for the hot water pressurization, first check valve is used for preventing water backflow extremely the second water pump.

Optionally, the water outlet pipeline further comprises a second filter, which is arranged between the fifth ball valve and the second water pump, and is used for filtering water before entering the second water pump, so as to increase the service life of the second water pump.

Optionally, the waste heat recovery device further includes a PLC controller, the PLC controller is electrically connected to the first to sixth ball valves, the first to second water pumps, the flow meter and the temperature transmitter, configured to control on/off of the first to sixth ball valves and the first to second water pumps, and further configured to receive data collected by the flow meter and the temperature transmitter and control an opening angle of the third ball valve, so as to control a flow rate of water entering the first rotating device, thereby achieving automatic adjustment of the temperature of the cylinder.

Optionally, each rotating device comprises:

the water tank seat is connected with the water inlet pipeline or the water outlet pipeline so as to introduce cold water into the water tank seat or output hot water in the water tank seat into the water outlet pipeline, and the water tank seat is a tank body with an opening at the top end so as to support the annular sleeve;

the adjustable supports are correspondingly arranged at four top points of the top of the water tank seat and fixedly connected with the top points, and are longitudinally adjustable so as to adjust the height of the water tank seat relative to the ground; and

the annular sleeve and the water tank seat are of a split structure, the annular sleeve is of a closed annular structure, a plurality of valves are mounted on the peripheral wall of the annular sleeve, the valves are uniformly distributed relative to the circumference of the annular sleeve, the bottom end of the annular sleeve is accommodated at an opening at the top end of the water tank seat, the annular sleeve is used for being sleeved on the outer surface of the cylinder body and fixedly connected with the cylinder body, and a water gap is formed in one end face of the annular sleeve to be connected with the cooling module;

the annular sleeve can rotate relative to the water tank seat under the driving of the barrel, each valve is configured to be opened at the central position of the bottom end of the annular sleeve so that water in the water tank seat is filled into the annular sleeve or water in the annular sleeve is filled into the water tank seat, and each valve is further configured to be closed when the valve is positioned in the annular sleeve except the central position of the bottom end.

Optionally, the cooling module is a coil pipe wound on the outer surface of the cylinder and fixedly connected with the cylinder.

Optionally, the cooling module is formed by connecting a plurality of cooling units in series, and each cooling unit includes:

the lining is an arc-shaped plate and is used for coating the outer surface of the barrel along the radial direction of the barrel;

the two connecting plates correspond to the two ends of the lining, are perpendicular to one surface of the lining and are fixedly connected with the one surface of the lining, each connecting plate is provided with a plurality of corresponding screw holes, each screw hole penetrates through the upper surface and the lower surface of the connecting plate, and each screw hole is used for fixing the lining on the barrel through a bolt; and

many cooling lines arrange be equipped with the surface department of two connecting plates in the inside lining, every cooling tube is the halfpipe form and follows the width direction of inside lining runs through long setting, every cooling tube all with inside lining fixed connection, the head and the tail of two adjacent cooling tubes are through the connecting pipe intercommunication that corresponds, make many cooling lines establish ties, and every cooling tube is used for leading to the subcooled water, for the barrel heat dissipation.

Optionally, the waste heat utilization device comprises a waste heat power generation device, a denitration system heating and stirring device and/or a living area water heating device.

The rotary kiln with the barrel temperature capable of being automatically adjusted has the advantages that the outer layer of the rotary kiln is a barrel. The waste heat recovery device is installed on the rotary kiln and comprises a water inlet pipeline, a first rotating device, a cooling module, a second rotating device and a water outlet pipeline which are sequentially connected, and the waste heat recovery device further comprises a PLC (programmable logic controller), is used for automatically adjusting the temperature of the rotary kiln and simultaneously recovers waste heat, and if the waste heat is sent to a waste heat power generation system to generate power, or is sent to a denitration system to dissolve and heat urea solution and accompany heat. Because this application can make the rotary kiln not continue to use traditional forced air cooling, practice thrift cooling blower investment cost and running cost. The rotary kiln cylinder is fully covered with the cooling device, the outer wall of the rotary kiln cylinder can be the outer wall of the cooling module or fully combined with the inner wall of the cooling module, and the heat of the rotary kiln cylinder can be rapidly transmitted to the cooling module. The temperature of the rotary kiln barrel can be automatically adjusted by adjusting the water inlet and outlet quantity of the cooling device through the PLC, and the rotary kiln barrel is not overheated, so that a rotary kiln barrel scanner is not required to be applied, and a large investment is saved.

The above and other objects, advantages and features of the present application will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the present application will be described in detail hereinafter by way of illustration and not limitation with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

FIG. 1 is a schematic block diagram of a rotary kiln having a barrel temperature that is automatically adjustable according to one embodiment of the present application;

FIG. 2 is a schematic block diagram at an angle of the rotary apparatus shown in FIG. 1;

FIG. 3 is a schematic block diagram of the rotary apparatus of FIG. 1 from another angle;

FIG. 4 is a schematic block diagram of a valve of the second rotary device shown in FIG. 2;

FIG. 5 is a schematic block diagram of a rotary apparatus according to another embodiment of the present application;

fig. 6 is a schematic structural view of a rotary kiln in which the temperature of a drum is automatically adjusted according to another embodiment of the present application;

fig. 7 is a schematic configuration view of the cooling unit shown in fig. 6.

The symbols in the drawings represent the following meanings:

i, a rotary kiln is adopted,

1, a cylinder body is arranged in a cylinder body,

2 a waste heat utilization device is arranged on the waste heat utilization device,

100 of a waste heat recovery device, and a waste heat recovery device,

10 a water inlet pipeline is arranged on the water tank,

11 a first ball valve, 12 a cold water tank, 13 a second ball valve, 14 a first filter, 15 a first water pump, 16 a first check valve, 17 a third ball valve, 18 a flow meter,

20 a first rotating means for rotating the rotating means,

21 water tank seat, 22 adjustable support, 23 annular sleeve, 24 valve, 25 water gap, 26 mounting plate, 27 slide rail,

30 the cooling of the module is carried out,

31 of a coil pipe,

32 cooling units, 33 inner liners, 34 connecting plates, 35 screw holes, 36 cooling pipelines, 37 connecting pipes,

40 the second rotating means is arranged to rotate,

50 a water outlet pipeline, wherein the water outlet pipeline is connected with a water inlet pipe,

a temperature transmitter 51, a fourth ball valve 52, a hot water tank 53, a fifth ball valve 54, a second filter 55, a second water pump 56, a second check valve 57, a sixth ball valve 58,

211 shift lever, 241 valve body, 2411 opening, 2412 through hole, 242 shifting fork type valve core, 2421 shifting fork, 2422 core part, 2423 water permeable hole, 2424 boss and 243 spring.

Detailed Description

Fig. 1 is a schematic structural view of a rotary kiln in which the temperature of a drum is automatically adjusted according to an embodiment of the present application. Fig. 6 is a schematic structural view of a rotary kiln in which the temperature of a drum can be automatically adjusted according to another embodiment of the present application.

Referring to fig. 6, the present embodiment provides a rotary kiln I with a barrel temperature capable of being automatically adjusted, wherein the outer layer of the rotary kiln is the barrel 1, as shown in fig. 1. The rotary kiln I is provided with a waste heat recovery device 100, and the waste heat recovery device 100 is connected with the waste heat utilization device 2. The waste heat recovery device may generally comprise: the water cooling system comprises a water inlet pipeline 10, a first rotating device 20, a cooling module 30, a second rotating device 40, a water outlet pipeline 50 and a PLC (programmable logic controller) which are connected in sequence. The water inlet line 10 is connected to an external water source for delivering cold water. A first rotating means 20 is installed at an outer surface of the cylinder 1 and fixedly connected with the cylinder 1 to rotate along with the cylinder 1, the first rotating means 20 being configured to be connected with the water inlet line 10 and output water in the water inlet line 10. A cooling module 30 is connected with the first rotating device 20 to input the water output by the first rotating device 20 into the cooling module 30, and the cooling module 30 is configured to fully cover the outer surface of the cylinder 1 to cool the cylinder 1 as a whole. In specific implementation, the outer wall of the cylinder 1 of the rotary kiln may be the outer wall of the cooling module 30, or may be fully combined with the inner wall of the cooling module 30, so as to ensure that the heat of the cylinder 1 of the rotary kiln can be rapidly transferred to the cooling module 30. A second rotating means 40 is installed at an outer surface of the cylinder 1 and fixedly connected with the cylinder 1 to rotate along with the cylinder 1, the second rotating means 40 being configured to be connected with the cooling module 30 and output water in the cooling module 30. The water outlet pipeline 50 is connected to the second rotating device 40, and is used for conveying the hot water output by the second rotating device 40 to the waste heat utilization device 2. The PLC is used for acquiring the water temperature of the water outlet pipeline 10 and controlling the water inlet and outlet amount of the cooling module 30 according to the water temperature so as to realize the automatic adjustment of the temperature of the cylinder 1.

Cold water is input from an external water source to the cooling module 30 through the water inlet pipeline 10 and the first rotating device 20, the cold water is cooled and absorbed by the cooling module 30 wound or wrapped on the outer surface of the cylinder 1 to become hot water, and the hot water is output to the waste heat utilization device 2 through the second rotating device 40 and the water outlet pipeline 50 to be utilized.

The rotary kiln I with the barrel temperature capable of being automatically adjusted adopts a water cooling structure comprising a water inlet pipeline 10, a rotating device, a cooling module 30 and a water outlet pipeline 50. Because this application does not continue to use traditional forced air cooling, practices thrift the running cost. By configuring the cooling module 30 to be wound or coated on the outer surface of the cylinder 1, not only can the entire cylinder 1 be effectively cooled, but also the heat can be absorbed by the cooling water and changed into hot water to be output to the waste heat utilization device 2 for utilization.

As shown in fig. 1, in this embodiment, the water inlet pipeline 10 may include a first ball valve 11, a cold water tank 12, a second ball valve 13, a first water pump 15, a first check valve 16, a third ball valve 17, and a flow meter 18 connected by pipelines. The first ball valve 11, the second ball valve 13 and the third ball valve 17 are all used for controlling the flow of water. The cold water tank 12 is used to store cold water. The first water pump 15 is used to pressurize the cold water. The first check valve 16 prevents water from flowing backward to the first water pump 15. The flow meter 18 is used for detecting the flow rate of the water flowing out of the first water pump 15.

More specifically, as shown in fig. 1, the water inlet pipeline 10 further includes a first filter 14 disposed between the first water pump 15 and the second ball valve 13 for filtering water before entering the first water pump 15, so as to increase the service life of the first water pump 15.

In the embodiment shown in fig. 1, the water outlet pipeline 50 may include a temperature transmitter 51, a fourth ball valve 52, a hot water tank 53, a fifth ball valve 54, a second water pump 56, a second check valve 57 and a sixth ball valve 58 connected by a pipeline. The temperature transmitter 51 is used for detecting the temperature of the hot water flowing out of the cooling module 30. The fourth ball valve 52, the fifth ball valve 54 and the sixth ball valve 58 are used to control the flow of water. The hot water tank 53 is used to store hot water. The second water pump 56 is used to pressurize the hot water. The first check valve 16 prevents water from flowing backward to the second water pump 56.

More specifically, as shown in fig. 1, the water outlet pipeline 50 further includes a second filter 55 disposed between the fifth ball valve 54 and the second water pump 56 for filtering water before entering the second water pump 56, so as to increase the service life of the second water pump 56.

More specifically, the waste heat recovery device further comprises a PLC controller. The PLC controller is electrically connected to the first to sixth ball valves 11 to 58, the first to second water pumps 15 to 56, the flow meter 18, and the temperature transmitter 51. The PLC controller is configured to control on/off of the first to sixth ball valves 11 to 58 and the first to second water pumps 15 to 56. The PLC controller is further configured to receive data collected by the flowmeter 18 and the temperature transmitter 51 and control the opening angle of the third ball valve 17, so as to control the flow rate of water entering the first rotating device 20, thereby achieving automatic adjustment of the temperature of the cylinder 1. For example, when the PLC controls that the temperature of the hot water detected by the temperature transmitter 51 is 25 ℃, the third ball valve 17 is controlled to decrease the flow of the water, thereby increasing the temperature of the cartridge 1. When the PLC controls that the temperature of the hot water detected by the temperature transmitter 51 is 100 ℃, the third ball valve 17 is controlled to increase the water flow, so that the temperature of the cylinder 1 is reduced. Thereby achieving the automatic adjustment of the temperature of the cylinder 1.

Fig. 2 is a schematic structural view at an angle of the rotating apparatus shown in fig. 1. Fig. 3 is a schematic configuration view of the rotating apparatus shown in fig. 1 at another angle. As shown in fig. 2, and also referring to fig. 3, each of the first and second rotating devices 20 and 40 includes: a water tank seat 21, an adjustable support 22 and an annular sleeve 23. Wherein the water tank holder 21 of the first rotating means 20 is connected to the water inlet line 10 to introduce cold water into the water tank holder 21. The water tank base 21 of the second rotating device 40 is connected to the water outlet pipe 50 to output the hot water in the water tank base 21 to the water outlet pipe 50. The water tank base 21 of each rotary device is a box body with an open top end to support the annular sleeve 23. The shape of the top end opening is matched to the shape of the annular sleeve 23 to facilitate rotation of the annular sleeve 23. The number of the adjustable supports 22 of each rotating device is four, and the adjustable supports are correspondingly arranged at four top points of the top of the water tank seat 21 and are fixedly connected with the top of the water tank seat 21. The adjustable support 22 is configured to be longitudinally adjustable to adjust the height of the tank mount 21 relative to the ground. In specific implementation, the adjustable support 22 may be a hydraulic rod, and the adjustable support 22 is longitudinally adjustable by the extension and contraction of the hydraulic rod. The annular sleeve 23 of each rotating device and the water tank seat 21 are of a split structure, and the annular sleeve 23 is of a closed annular structure. A plurality of valves 24 are mounted on the peripheral wall of the annular sleeve 23, and the valves 24 are uniformly distributed relative to the circumference of the annular sleeve 23. The bottom end of the annular sleeve 23 is accommodated at the top opening of the water tank seat 21. The annular sleeve 23 is used for being sleeved on the outer surface of the cylinder body 1 and fixedly connected with the cylinder body. A water gap 25 is provided at one end face of the annular sleeve 23 to connect the cooling module 30. Wherein, the annular sleeve 23 of each rotating device can rotate relative to the water tank seat 21 under the driving of the cylinder 1. In the first rotating means 20, each valve 24 is configured to be opened at a bottom center position of the annular sleeve 23 so that the water of the tank seat 21 is poured into the annular sleeve 23, and each valve 24 is further configured to be closed at a bottom center position of the annular sleeve 23. Each valve 24 in the second rotating means 40 is configured to be opened at a bottom center position of the annular sleeve 23 so that the water in the annular sleeve 23 is poured into the water tank seat 21, and each valve 24 is further configured to be closed at a bottom center position of the annular sleeve 23. During the concrete implementation, each valve 24 of each rotary device all adopts mechanical system to open and close, ensures that each valve 24 is located 23 bottom central point departments of annular cover and opens, and other positions in addition are in closing, can not take place accident.

In one embodiment, the valve 24 of the first rotary device 20 is a safety valve. The water with pressure is stored in the water tank seat 21 of the first rotating means 20. When a valve 24 in the annular sleeve 23 is moved to the position of the vertical center line of the water tank seat 21, the valve 24 is pushed open by the water pressure, and the water with pressure enters the annular sleeve 23 through the valve 24. When the valve 24 leaves the tank seat 21, the valve 24 is closed by its own spring.

In particular implementation, fig. 4 is a schematic structural view of a valve of the second rotating apparatus shown in fig. 1. More specifically, as shown in fig. 4, the valve 24 at the second rotating means 40 is a fork check valve. A lever 211 is installed in the tank seat 21 at the second rotating means 40, and the lever 211 is perpendicular to the bottom of the tank seat 21 for opening the fork check valve. The fork check valve includes a valve body 241, a fork spool 242, and a spring 243. The valve body 241 is a cylindrical body having an opening 2411 at the top end and a through hole 2412 at the bottom end. Fork lift spool 242 has a top fork 2421 and a core 2422 supported below and connected to the fork. The middle part of the core part 2422 is a cavity, and the side wall of the core part is provided with radial water permeable holes 2423. The top end of the core 2422 abuts against the opening 2411 of the valve body, and the lower part of the core 2422 is matched with the inner wall of the valve body 241. A boss 2424 is provided at a position of the cavity of the core 2422 near the bottom surface. The spring 243 is urged between the boss 2424 and the bottom of the valve body 241.

Fig. 4 shows a state in which a certain valve 24 in the annular sleeve 23 at the second rotating means 40 is moved to a position close to the vertical center line of the tank seat 21, and at this time, water with pressure in the annular sleeve 23 flows into the inside of the valve body 241 through the through hole 2412 and is filled. When a certain valve 24 in the annular sleeve 23 moves to the position of the vertical center line of the water tank seat 21, the shift lever 211 in the water tank seat 21 abuts against the shift fork 2421, the shift fork 2421 drives the core 2422 to move backwards and compress the spring 243, and a gap is flicked between the core 2422 and the opening 2411. The pressurized water flows out through the water-permeable holes 2423, passes through the gap between the core 2422 and the opening 2411, and flows into the tank seat 21 through the opening 2411 of the valve body 241. When a certain valve 24 in the annular sleeve 23 is moved away from the vertical center line position of the water tank seat 21, the spring 243 is reset to press the core 2422 against the opening 2411 of the valve body 241, and the valve 24 is restored to the sealing state.

More specifically, in this embodiment, the water tank seat 21 of the first rotating device 20 is connected to the water inlet pipe 10, and the water port 25 of the annular sleeve 23 of the first rotating device 20 is connected to the water inlet of the cooling module 30. The water gap 25 of the cooling module 30 is connected with the tank socket 21 of the second rotating device 40. The water outlet 25 of the annular sleeve 23 of the second rotating device 40 is connected with the water outlet pipeline 50.

Fig. 5 is a schematic structural view of a rotating apparatus according to another embodiment of the present application. The present embodiment is different from the rotating device shown in fig. 2 and 3 only in that the rotating device in the present embodiment further includes: mounting plate 26 and slide rail 27. The mounting plate 26 is fixed below the adjustable support 22 and is connected with the adjustable support 22 through bolts. The slide rails 27 are arranged below the mounting plate 26, and the axes of the slide rails 27 are parallel to the axis of the rotary kiln. The rotating devices, namely the first rotating device 20 and the second rotating device 40, can be transversely displaced along the slide rails 27 to adapt to the displacement change of the rotary kiln I during transverse movement.

As shown in fig. 1, in this embodiment, the cooling module 30 is a coil 31 wound on the outer surface of the cylinder 1, and the cooling module 30 is fixedly connected to the cylinder 1.

As shown in fig. 1, the cooling water passes through a first ball valve 11, a cold water tank 12, and a second ball valve 13 to a first water pump 15. The water pressurized by the first water pump 15 flows into the water tank seat 21 of the first rotating device 20 through the first check valve 16, the third ball valve 17, and the flow meter 18. The water in the water tank seat 21 of the first rotating device 20 has pressure, and is filled into the annular sleeve 23 through the valve 24 under the action of the pressure, and then is output to the cooling module 30 through the water port 25 of the annular sleeve 23. The water in the cooling module 30 cools the cylinder 1 and absorbs heat to become hot water, and the hot water is output to the water outlet pipeline 50. Then the temperature is transmitted to a second water pump 56 through a temperature transmitter 51, a fourth ball valve 52, a hot water tank 53 and a fifth ball valve 54. And then the waste heat is pressurized by the second water pump 56 and then output to the waste heat utilization device 2 through the second check valve 57 and the sixth ball valve 58.

Fig. 6 is a schematic structural view of a rotary kiln in which the temperature of a drum can be automatically adjusted according to another embodiment of the present application. Fig. 7 is a schematic configuration view of the cooling unit shown in fig. 6.

The difference from the above embodiment is that in the present embodiment, as shown in fig. 6, the cooling module 30 is formed by serially connecting a plurality of cooling units 32. As shown in fig. 7, each cooling unit 32 includes: an inner liner 33, two webs 34 and a plurality of cooling lines 36. The lining 33 is an arc-shaped plate and is used for radially wrapping the outer surface of the barrel 1 along the barrel 1. Two connection plates 34 correspond to both ends of the inner liner 33 and are perpendicular to and fixedly connected to a surface of the inner liner 33. Each connecting plate 34 is provided with a plurality of corresponding screw holes 35. Each screw hole 35 penetrates the upper and lower surfaces of the connecting plate 34, and each screw hole 35 is used for passing a bolt to fix the liner 33 to the cylinder 1. A plurality of cooling lines 36 are arranged in the inner liner 33 at the surface where the two webs 34 are provided. Each cooling pipe is a semi-tubular shape and is provided to extend along the width direction of the liner 33. Each cooling tube is fixedly connected with the inner liner 33. The heads and the tails of two adjacent cooling pipes are communicated through corresponding connecting pipes 37, so that the plurality of cooling pipelines 36 are connected in series. Each cooling pipe is used for passing cold water to radiate heat of the cylinder body 1.

In other embodiments, the cooling unit may also not comprise two connection plates, the inner liner being directly fixed at the outer surface of the cylinder by means of welding.

More specifically, the waste heat utilization device 2 may be a waste heat power generation device, a denitration system heating and stirring device, and/or a living area hot water device.

It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which this application belongs.

In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present application, "a plurality" means two or more unless specifically defined otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

The above description is only for the preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. The utility model provides a but barrel temperature automatically regulated's rotary kiln, the skin of rotary kiln is the barrel, its characterized in that, waste heat recovery device (100) are installed to rotary kiln (I), waste heat recovery device (100) link to each other with waste heat utilization device (2), include:

the water inlet pipeline (10) is connected with an external water source and is used for conveying cold water;

a first rotating device (20) installed at an outer surface of the cylinder (1) and fixedly connected with the cylinder (1) to rotate along with the cylinder (1), the first rotating device (20) being configured to be connected with the water inlet line (10) and output water in the water inlet line (10);

a cooling module (30) connected with the first rotating device (20) to input the water output by the first rotating device (20) into the cooling module (30), wherein the cooling module (30) is configured to fully cover the outer surface of the cylinder (1) to cool the cylinder (1) integrally;

a second rotating device (40) installed at an outer surface of the drum (1) and fixedly connected with the drum (1) to rotate along with the drum (1), the second rotating device (40) being configured to be connected with the cooling module (30) and output water in the cooling module (30);

the water outlet pipeline (50) is connected with the second rotating device (40) and is used for conveying the hot water output by the second rotating device (40) to the waste heat utilization device (2); and

and the PLC is used for acquiring the water temperature of the water outlet pipeline (50) and controlling the water inlet and outlet amount of the cooling module (30) according to the water temperature so as to realize the automatic adjustment of the temperature of the barrel (1).

2. The rotary kiln according to claim 1, wherein the water inlet pipe (10) comprises a first ball valve (11), a cold water tank (12), a second ball valve (13), a first water pump (15), a first check valve (16), a third ball valve (17) and a flow meter (18) which are connected through a pipe, the first to third ball valves (17) are used for controlling the flow of water, the cold water tank is used for storing cold water, the first water pump (15) is used for pressurizing the cold water, the first check valve (16) is used for preventing the water from flowing back to the first water pump (15), and the flow meter (18) is used for detecting the flow rate of the water flowing out of the first water pump (15).

3. The rotary kiln according to claim 2, characterized in that the water inlet line (10) further comprises a first filter (14) arranged between the first water pump (15) and the second ball valve (13) for filtering the water before entering the first water pump (15) for increasing the service life of the first water pump (15).

4. The rotary kiln according to claim 3, wherein the water outlet pipeline (50) comprises a temperature transmitter (51), a fourth ball valve (52), a hot water tank (53), a fifth ball valve (54), a second water pump (56), a second check valve (57) and a sixth ball valve (58) which are connected through pipelines, the temperature transmitter (51) is used for detecting the temperature of the hot water flowing out of the cooling module (30), the fourth to sixth ball valves (58) are all used for controlling the flow of the water, the hot water tank (53) is used for storing the hot water, the second water pump (56) is used for pressurizing the hot water, and the first check valve (16) is used for preventing the water from flowing back to the second water pump (56).

5. The rotary kiln according to claim 4, characterized in that the water outlet pipeline (50) further comprises a second filter (55) arranged between the fifth ball valve (54) and the second water pump (56) for filtering water before entering the second water pump (56) to increase the service life of the second water pump (56).

6. The rotary kiln according to claim 5, wherein the PLC is electrically connected to the first to sixth ball valves (58), the first to second water pumps (56), the flow meter (18) and the temperature transmitter (51), configured to control the on/off of the first to sixth ball valves (58) and the first to second water pumps (56), and configured to receive data collected by the flow meter (18) and the temperature transmitter (51) and control the opening angle of the third ball valve (17) accordingly, thereby controlling the flow rate of water entering the first rotary device (20) and thus achieving the automatic adjustment of the temperature of the barrel (1).

7. The rotary kiln as claimed in claim 1, wherein each of the rotary devices comprises:

the water tank seat (21) is connected with the water inlet pipeline (10) or the water outlet pipeline (50) so as to introduce cold water into the water tank seat (21) or output hot water in the water tank seat (21) into the water outlet pipeline, and the water tank seat (21) is a box body with an open top end and is used for supporting the annular sleeve (23);

the number of the adjustable supports (22) is four, the adjustable supports are correspondingly arranged at four top points of the top of the water tank seat (21) and are fixedly connected with the top points, and the adjustable supports (22) are configured to be longitudinally adjustable so as to adjust the height of the water tank seat (21) relative to the ground; and

the annular sleeve (23) and the water tank seat (21) are of a split structure, the annular sleeve (23) is of a closed annular structure, a plurality of valves (24) are mounted on the peripheral wall of the annular sleeve (23), the valves (24) are uniformly distributed relative to the circumference of the annular sleeve (23), the bottom end of the annular sleeve (23) is accommodated at an opening at the top end of the water tank seat (21), the annular sleeve (23) is used for being sleeved on the outer surface of the barrel body (1) and fixedly connected with the barrel body, and a water gap (25) is formed in one end face of the annular sleeve (23) to connect the cooling module (30);

wherein the annular sleeve (23) can rotate relative to the water tank seat (21) under the driving of the barrel body (1), each valve (24) is configured to be opened at the bottom center position of the annular sleeve (23) so as to enable water of the water tank seat (21) to be poured into the annular sleeve (23) or enable water in the annular sleeve (23) to be poured into the water tank seat (21), and each valve (24) is also configured to be closed when the valve is positioned in the annular sleeve (23) except the bottom center position.

8. The rotary kiln according to claim 1, characterized in that the cooling module (30) is a coil (31) wound around the outer surface of the barrel (1) and fixedly connected with the barrel (1).

9. The rotary kiln according to claim 1, wherein the cooling module (30) is formed by connecting a plurality of cooling units (32) in series, each cooling unit (32) comprising:

the lining (33) is an arc-shaped plate and is used for cladding the outer surface of the barrel (1) along the radial direction of the barrel (1);

the two connecting plates (34) correspond to two ends of the lining (33), are perpendicular to one surface of the lining (33) and are fixedly connected, a plurality of corresponding screw holes (35) are formed in each connecting plate (34), each screw hole (35) penetrates through the upper surface and the lower surface of each connecting plate (34), and each screw hole (35) is used for fixing the lining (33) on the barrel body (1) through a bolt; and

many cooling lines (36), arrange be equipped with the surface department of two connecting plates (34) in inside lining (33), every cooling tube is the halfpipe form and follows the width direction of inside lining (33) runs through long the setting, every cooling tube all with inside lining (33) fixed connection, the head and the tail of two adjacent cooling tubes communicate through corresponding connecting pipe (37), makes many cooling lines (36) establish ties, and every cooling tube is used for leading to the cold water, for barrel (1) heat dissipation.

10. The rotary kiln according to any one of claims 1 to 9, characterized in that the waste heat utilization device (2) comprises a waste heat power generation device, a denitration system heating and stirring device and/or a domestic hot water device.

Images