CN113587631B

CN113587631B - Energy-saving cement rotary kiln

Info

Publication number: CN113587631B
Application number: CN202110855185.4A
Authority: CN
Inventors: 许涛; 胡春磊
Original assignee: Beijing Qingfeng Lvneng Technology Co ltd; Hebei Qingfeng Green Energy Solid Waste Disposal Co ltd; Wuan Xinqingcheng Renewable Resource Utilization Co ltd; Wuhan Xinfeng Cement Co ltd; Hebei Qingfeng Digital Technology Co ltd
Current assignee: Beijing Qingfeng Lvneng Technology Co ltd; Hebei Qingfeng Digital Technology Co ltd; Hebei Qingfeng Green Energy Solid Waste Disposal Co ltd; Wuan Xinqingcheng Renewable Resource Utilization Co ltd; Wuhan Xinfeng Cement Co ltd
Priority date: 2021-07-26
Filing date: 2021-07-26
Publication date: 2023-05-09
Anticipated expiration: 2041-07-26
Also published as: CN113587631A

Abstract

The invention discloses an energy-saving cement rotary kiln which comprises a kiln body, a first base, a second base, a third base and a feeding bin, wherein the top of the first base is fixedly connected with a motor and a reduction gear box, the motor is in transmission connection with the reduction gear box, the reduction gear box is in transmission connection with a driving gear, the kiln body is in transmission connection with the driving gear through a driven gear, the top of the second base is fixedly connected with two groups of mounting seats, and a bearing is connected between each group of mounting seats through a connecting shaft. The invention can effectively bring the heat of the high-temperature gas back into the water tank through the liquid by using the hose and the submersible pump in the waste heat recovery mechanism, and transfer the heat into the feeding bin, and the air bag beside the hose can squeeze the hose under the high-temperature condition, so that the contact area of the hose and the exhaust funnel is increased, the flow rate of the liquid in the hose is accelerated, the collection of the heat of the high-temperature gas is further increased, and more heat can be transferred into the feeding bin.

Description

Energy-saving cement rotary kiln

Technical Field

The invention relates to the technical field of cement manufacturing equipment, in particular to an energy-saving cement rotary kiln.

Background

The cement rotary kiln belongs to building material equipment, and is one kind of lime kiln. The rotary kiln can be divided into cement rotary kiln, metallurgical and chemical rotary kiln and lime rotary kiln according to different materials to be treated, and the cement rotary kiln is a main device of cement clinker dry method and wet method production line.

The invention relates to the technical field of cement production and processing, in particular to a cement rotary kiln which comprises a base, a rotary structure, an oiling structure, a dust scraping structure and an anti-blocking structure, wherein the rotary structure is arranged on the base; the revolution mechanic is when pivoted, can drive the structure of oiling and carry out the work of oiling to the revolution mechanic, thereby can be abundant to the revolution mechanic lubrication of going on, guarantee that the revolution mechanic can not cause frictional force to increase because of a large amount of dust adhesion and even appear the condition that the revolution mechanic card is dead, through being in installation on the base scrapes grey structure, can carry out timely clearance to the dust of adhesion on the revolution mechanic, thereby can guarantee the better work of structure of oiling, can also collect the unnecessary lubricating oil of structure injection of oiling, thereby can avoid the waste of lubricating oil, and the structure of oiling can scrape grey structure through the continuous striking of jam-proof structure when the work, thereby can avoid scraping grey structure and have the dust to cause the jam at the during operation.

Although the above solutions have been proposed for the problems of dust and lubrication in the device, the following drawbacks still remain:

1. in the use of the cement rotary kiln, a plurality of high-temperature gases are generated, but the heat energy in the high-temperature gases is released in the air and cannot be timely recycled, so that the resource is wasted.

2. In the working process of the cement rotary kiln, a large amount of materials exist in the rotary kiln, and the rotary kiln emits heat back to the outside, so that the bearing contacted with the rotary kiln can absorb and generate much heat under long-term working, the working performance of the bearing under long-term working is greatly reduced, the bearing is damaged, and the rotary kiln is stopped, so that huge economic loss is caused.

For this purpose, an energy-saving cement rotary kiln is proposed.

Disclosure of Invention

The invention aims to provide an energy-saving cement rotary kiln, which can effectively bring heat of high-temperature gas back into a water tank through liquid by using a hose and a submersible pump in a waste heat recovery mechanism and transfer the heat into a feeding bin, and an air bag beside the hose can squeeze the hose under high-temperature conditions, so that the contact area of the hose and an exhaust drum is increased, the flow rate of the liquid in the hose is increased, the collection of the heat of the high-temperature gas is further increased, and more heat can be transferred into the feeding bin, so that the problems in the background art are solved.

In order to achieve the above purpose, the present invention provides the following technical solutions:

the energy-saving cement rotary kiln comprises a kiln body, a first base, a second base, a third base and a feeding bin, wherein the top of the first base is fixedly connected with a motor and a reduction gear box, an output shaft of the motor is provided with a driving gear through the reduction gear box, the kiln body is in transmission connection with the driving gear through a driven gear, the top of the second base is fixedly connected with two groups of mounting seats, a bearing is connected between each group of mounting seats through a connecting shaft, a connecting roller is sleeved on the outer wall of the kiln body, the connecting roller is in rolling connection with the bearing, the feeding bin is connected with one end of the kiln body, the feeding bin is fixedly connected with the top of the third base, and a waste heat recovery mechanism is arranged in the third base;

the waste heat recovery mechanism comprises a water tank, a submersible pump, a three-way pipe, a sleeve and an exhaust drum, wherein one end of the kiln body, far away from the feeding bin, is connected with the discharging bin, the sleeve penetrates through and is installed at the top of the discharging bin, the top of the sleeve is connected with a gas treatment mechanism, the top of the second base is fixedly connected with the sleeve through a support, the bottom of the exhaust drum and the top of one end of the kiln body are arranged in the sleeve in an inserted mode, the inner wall of the sleeve is fixedly connected with an air bag, the outer wall of the exhaust drum is spirally wound with a hose, the top of the inner wall of the exhaust drum is fixedly connected with an exhaust fan, the third base is provided with a water tank, the bottom wall of the water tank is fixedly provided with a submersible pump, the output end of the submersible pump is connected with the three-way pipe, one end of the hose, far away from the three-way pipe, is inserted into one side of the water tank, and a cover plate is fixedly connected in the water tank, and the cover plate is located under the feeding bin.

When the kiln body is in operation, the kiln body is driven by the motor, and the connecting roller is utilized to roll on the bearing, and high-temperature processing and treatment are carried out in the kiln body, and materials enter the kiln body from the feeding bin and are discharged through the discharging bin, the sleeve is arranged at the top of the discharging bin, the exhaust fan works in the exhaust drum and exhausts air to the outside of the exhaust drum, negative pressure is generated in the exhaust drum, high-temperature gas in the kiln body is sucked into the exhaust drum by the negative pressure in the exhaust drum and led to the gas treatment mechanism, the gas treatment mechanism is in the prior art, the submersible pump is started at the moment, liquid in the water tank is pumped into the hose through the three-way pipe, the high-temperature gas is transferred to the exhaust drum through the liquid flowing in the inside, the hose is continuously expanded under the influence of the high temperature, the hose is extruded by the air bag, the hose is flattened, the contact area of the hose and the pipe diameter area of the hose is increased.

Preferably, the waste heat recovery mechanism further comprises a heat dissipation mechanism, the heat dissipation mechanism comprises an annular contact pipe, a first connecting pipe and a second connecting pipe, the connecting shaft is fixedly sleeved with the two annular contact pipes, the first connecting pipe and the second connecting pipe are respectively inserted into two sides of the annular contact pipe, the first connecting pipe is inserted into the three-way pipe, and the second connecting pipe penetrates through the second base, the first base and the third base and extends into the water tank.

When the kiln body rotates, the kiln body and the mass of materials in the kiln body are large, and the kiln body can outwards emit heat, so that the bearing and the connecting roller can absorb heat and generate friction heat in the rolling process, the liquid in the three-way pipe can pass through the first connecting pipe and flow to the annular contact pipe when the submersible pump pumps the liquid outwards through the three-way pipe, then the flowing liquid can take away the heat on the connecting shaft after flowing out of the second connecting pipe at the other end of the annular contact pipe, the heat on the high-temperature bearing can be transmitted to the connecting shaft due to the heat transmission principle, the heat on the bearing is further reflected to be taken away when the liquid flows in the annular contact pipe, the heat on the bearing is reduced, the bearing can not generate cracks due to long-term work, the service life of the bearing is prolonged, the heat can be brought back into the water tank, then is upwards transmitted to the bottom of the feeding bin, the waste heat recovery effect of the device is further improved, and the energy saving effect of the device is improved.

Preferably, the top of annular contact tube runs through and inserts and be equipped with the water guide tube, one side of water guide tube is inserted and is equipped with the shower nozzle, one side fixedly connected with four connecting rods of shower nozzle, four the joint fixedly connected with connecting plate jointly of one end of connecting rod, one side fixedly connected with memory alloy spring that the connecting plate is close to the connecting rod, memory alloy spring's one end fixedly connected with diffusion pipe and baffle, baffle sliding connection is in the shower nozzle.

In the bearing work, if the temperature is too high, the memory alloy spring expands due to the influence of the heat, then the baffle plate is pushed inwards by the memory alloy spring to enable liquid flowing in the annular contact tube to be sprayed outwards through the spray head, the liquid can directly impact on the diffusion tube and spray around the bearing, the temperature on the bearing is reduced, the diffusion tube can not only diffuse the liquid, but also isolate the liquid from being directly sprayed on the memory alloy spring, so that the memory alloy spring can effectively keep an expanded state, the cooling effect of the bearing is ensured, and the situation that the bearing is cracked or even broken due to high temperature can be effectively reduced.

Preferably, a plurality of heat radiation fins are vertically arranged on the top of the cover plate, and the fan is positioned right above the heat radiation fins.

When the submerged pump continuously pumps out liquid to collect heat and returns to the water tank, the heat can be upwards transferred through the cover plate and the radiating fins on the cover plate, so that the heat transfer effect is effectively improved, and the energy-saving effect is further improved.

Preferably, the bottom of the feeding bin further comprises a heated plate and heated fins, the heated plate is arranged at the bending position of the bottom of the feeding bin, a plurality of heated fins are arranged on the outer wall of the heated plate, and a plurality of round holes are formed in the heated fins.

In the process that the cover plate transmits heat upwards, the heated plate can absorb the heat, and the heated fins increase the surface area of the heated plate, so that the heat can better and more contact the bottom of the feeding bin, the preheating effect of materials in the feeding bin is better, and the utilization rate of waste heat is further improved.

Preferably, the fan is fixedly connected in the water tank and is positioned right above the cover plate, the fan is fixedly connected in the water tank through the connecting frame, and an air outlet of the fan is arranged corresponding to the heated fins.

The fan above the cover plate can rapidly and outwards emit heat on the surface of the cover plate, so that heat is not only accelerated to be transferred to the feeding bin, but also the temperature of liquid in the water tank can be reduced more rapidly, the cooling effect of the bearing is better, the speed of absorbing high-temperature gas heat in the exhaust barrel is higher, and the heat transfer and absorption efficiency in the device are further improved.

Compared with the prior art, the invention has the beneficial effects that:

1. the invention can effectively bring the heat of the high-temperature gas back into the water tank through the liquid by using the hose and the submersible pump in the waste heat recovery mechanism, and transfer the heat into the feeding bin, and the air bag beside the hose can squeeze the hose under the high-temperature condition, so that the contact area of the hose and the exhaust funnel is increased, the flow rate of the liquid in the hose is accelerated, the collection of the heat of the high-temperature gas is further increased, and more heat can be transferred into the feeding bin.

2. According to the invention, the tee pipe and the first connecting pipe are used, so that heat of high-temperature gas can be absorbed, heat on the bearing is absorbed, the working state of the bearing under the high-temperature condition is kept, the spray head is arranged at the top of the annular contact pipe, and when the bearing is overheated, the memory alloy spring is triggered, so that the spray head sprays liquid, the periphery of the bearing is cooled, and the damage caused by the overheating of the bearing is further reduced.

3. According to the invention, the water tank is used, heat generated by the bearing and the high-temperature gas is upwards transferred through the cover plate and the radiating fins on the cover plate, and the heat is quickly transferred to the heated fins by the fan, so that the heating process of the bottom of the feeding bin and the heat dissipation in the water tank are accelerated, and the energy-saving effect of the device is further improved.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a top view of the present invention;

FIG. 3 is a left side view of the present invention;

FIG. 4 is a schematic view of the connection between the third base and the tee pipe and hose according to the present invention;

FIG. 5 is an enlarged schematic view of the invention at A in FIG. 1;

FIG. 6 is a schematic diagram of a connection between a showerhead and a diffuser in accordance with the present invention.

In the figure: 1. a kiln body; 2. a first base; 3. a motor; 4. a reduction gear box; 5. a drive gear; 6. a driven gear; 7. a second base; 8. a third base; 9. a pool; 10. submersible pump; 11. a three-way pipe; 12. a sleeve; 13. an exhaust pipe; 14. an exhaust fan; 15. an air bag; 16. a hose; 17. a mounting base; 18. a connecting shaft; 19. a bearing; 20. a connecting roller; 21. an annular contact tube; 22. a first connection pipe; 23. a second connection pipe; 24. a cover plate; 25. a fan; 26. a feeding bin; 2601. a heated plate; 2602. a heated fin; 27. a water conduit; 28. a spray head; 29. a connecting rod; 30. a connecting plate; 31. a memory alloy spring; 32. a diffusion tube; 33. a baffle; 34. discharging the material bin; 35. a gas treatment mechanism.

Detailed Description

The following description of the embodiments of the present invention 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 invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. Furthermore, the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1 to 6, the present invention provides an energy-saving rotary cement kiln, which has the following technical scheme:

the energy-saving cement rotary kiln comprises a kiln body 1, a first base 2, a second base 7, a third base 8 and a feeding bin 26, wherein the top of the first base 2 is fixedly connected with a motor 3 and a reduction gear box 4, an output shaft of the motor 3 is provided with a driving gear 5 through the reduction gear box 4, the outer wall of the kiln body 1 is provided with a driven gear 6 meshed with the driving gear 5, the top of the second base 7 is fixedly connected with two groups of mounting seats 17, each group of mounting seats 17 is connected with a bearing 19 through a connecting shaft 18, the outer wall of the kiln body 1 is sleeved with a connecting roller 20, the connecting roller 20 is in rolling connection with the bearing 19, the feeding bin 26 is connected to one end of the kiln body 1, the feeding bin 26 is fixedly connected to the top of the third base 8, and a waste heat recovery mechanism is arranged in the third base 8;

the waste heat recovery mechanism comprises a water tank 9, a submersible pump 10, a three-way pipe 11, a sleeve 12 and an exhaust barrel 13, wherein one end of a kiln body 1 far away from a feeding bin 26 is connected with a discharging bin 34, the sleeve 12 is installed at the top of the discharging bin 34 in a penetrating mode, the top of the sleeve 12 is connected with a gas treatment mechanism 35, the sleeve 12 is fixedly connected to the top of a second base 7 through a support, the exhaust barrel 13 is inserted into the sleeve 12, the bottom end of the exhaust barrel 13 is contacted with one end top of the kiln body 1, an air bag 15 is fixedly connected to the inner wall of the sleeve 12, a hose 16 is spirally wound on the outer wall of the exhaust barrel 13, an exhaust fan 14 is fixedly connected to the inner wall top of the exhaust barrel 13, a water tank 9 is arranged on a third base 8, the submersible pump 10 is fixedly installed on the bottom wall of the water tank 9, the three-way pipe 11 is connected to the output end of the submersible pump 10, one end of the hose 16 is connected to one end of the three-way pipe 11, one end of the hose 16 far away from the three-way pipe 11 is inserted to one side of the water tank 9, a cover plate 24 is fixedly connected to the inside the water tank 9, and the cover plate 24 is located under the feeding bin 26.

In operation, the kiln body 1 is driven by the motor 3 and rolls on the bearing 19 by the connecting roller 20, and high temperature processing and treatment are carried out in the kiln body 1, while the material enters the kiln body 1 from the feeding bin 26 and is discharged through the discharging bin 34, the sleeve 12 is arranged on the top of the discharging bin 34, the exhaust fan 14 works in the exhaust barrel 13 and exhausts to the outside of the exhaust barrel 13, so that negative pressure is generated in the exhaust barrel 13, the high temperature gas in the kiln body 1 is attracted into the exhaust barrel 13 by the negative pressure in the exhaust barrel 13 and led to the gas treatment mechanism 35, the gas treatment mechanism 35 is the prior art, and is not repeated here, at this time, the submersible pump 10 is started, the liquid in the water tank 9 is pumped into the hose 16 through the tee 11, the high temperature gas transfers the temperature to the exhaust barrel 13, the hose 16 takes heat away by the liquid flowing inside, and in the process, the air bag 15 is continuously expanded under the influence of high temperature, the air bag 15 is forced to squeeze the hose 16, the hose 16 is flattened, the contact area between the hose 16 and the exhaust drum 13 is increased, the pipe diameter area of the hose 16 is smaller, the flow rate of liquid in the hose 16 is increased, the speed of heat taken away by the exhaust drum 13 is further increased, the heat of the exhaust drum 13 is brought into the water tank 9 through the liquid, the liquid with temperature transfers the heat to the cover plate 24 through heat transfer, the cover plate 24 does not allow dust to fall into the water tank 9 when the submersible pump 10 works, and also plays a role of heat transfer, so that the heat of the liquid in the water tank 9 is transferred upwards into the feeding bin 26, the material in the feeding bin 26 ready to enter the kiln body 1 is preheated in advance, the waste heat generated by the device is effectively recovered, the fuel required in the kiln body 1 can be reduced, the device is more energy-saving.

As an embodiment of the present invention, referring to fig. 1 and 4, the heat recovery mechanism further includes a heat dissipation mechanism including an annular contact pipe 21, a first connection pipe 22 and a second connection pipe 23, the annular contact pipe 21 being fixedly sleeved on the connection shaft 18, the first connection pipe 22 and the second connection pipe 23 being respectively inserted at both sides of the annular contact pipe 21, the first connection pipe 22 being inserted through the tee 11, the second connection pipe 23 penetrating the second base 7, the first base 2 and the third base 8 and extending into the pool 9.

When the kiln body 1 rotates, as the mass of the kiln body 1 and the materials in the kiln body 1 is large, and the kiln body 1 can emit heat outwards, the bearing 19 and the connecting roller 20 can absorb heat and generate friction heat in the rolling process, while the submersible pump 10 pumps out liquid outwards through the three-way pipe 11, the liquid in the three-way pipe 11 can pass through the first connecting pipe 22 and flow to the annular contact pipe 21, then flow out of the second connecting pipe 23 at the other end of the annular contact pipe 21, the flowing liquid can take away the heat on the connecting shaft 18, the heat on the high-temperature bearing 19 can be transferred to the connecting shaft 18 due to the heat transfer principle, the heat on the bearing 19 is further taken away while the liquid in the annular contact pipe 21 flows, the heat on the bearing 19 is reduced, the bearing 19 can not generate cracks due to long-term operation, the service life of the bearing 19 is prolonged, the heat can be brought back into the water tank 9 and then be transferred upwards to the bottom of the annular contact pipe 21, the waste heat of the device is further increased, and the energy saving effect of the device is improved.

As an embodiment of the present invention, referring to fig. 1 and 5, a water guide pipe 27 is inserted through the top of the annular contact pipe 21, a spray head 28 is inserted at one side of the water guide pipe 27, four connecting rods 29 are fixedly connected at one side of the spray head 28, one ends of the four connecting rods 29 are fixedly connected with a connecting plate 30 together, one side of the connecting plate 30 close to the connecting rod 29 is fixedly connected with a memory alloy spring 31, one end of the memory alloy spring 31 is fixedly connected with a diffusion pipe 32 and a baffle 33, and the baffle 33 is slidably connected in the spray head 28.

When the bearing 19 works, if the temperature is too high, the memory alloy spring 31 expands due to the influence of the heat, then the baffle 33 is pushed inwards by the memory alloy spring 31 to enable the liquid flowing in the annular contact tube 21 to be sprayed outwards through the spray head 28, the liquid can directly strike the diffusion tube 32 and spray around the bearing 19, the temperature on the bearing 19 is reduced, the diffusion tube 32 can not only diffuse the liquid, but also isolate the liquid from directly spraying on the memory alloy spring 31, so that the memory alloy spring 31 can effectively keep an expanded state, the cooling effect on the bearing 19 is ensured, and the conditions of cracks and even breakage of the bearing 19 due to high temperature can be effectively reduced.

As an embodiment of the present invention, referring to fig. 1, a fan 25 is fixedly connected to the inside of the pool 9, and the fan 25 is located directly above the cover plate 24, and an air outlet of the fan 25 is disposed corresponding to the heat receiving fins 2602.

The fan 25 above the cover plate 24 can quickly and outwardly radiate heat on the surface of the cover plate 24, so that not only is the heat transferred to the feeding bin 26 accelerated, but also the temperature of liquid in the water tank 9 can be reduced more quickly, the cooling effect of the bearing 19 is better, the speed of absorbing high-temperature gas heat in the exhaust funnel 13 is higher, and the heat transfer and absorption efficiency in the device are further improved.

As an embodiment of the present invention, referring to fig. 1, a plurality of heat dissipation fins are vertically installed at the top of the cover plate 24, and the fan 25 is located right above the heat dissipation fins.

When the submersible pump 10 continuously pumps out liquid to collect heat and return the heat to the water tank 9, the heat can be upwards transferred through the cover plate 24 and the radiating fins on the cover plate 24, so that the heat transfer effect is effectively improved, and the energy-saving effect is further improved.

As an embodiment of the present invention, referring to fig. 1, the bottom of the feeding bin 26 further includes a heated plate 2601 and heated fins 2602, the heated plate 2601 is disposed at a bent portion of the bottom of the feeding bin 26, the heated fins 2602 are disposed on an outer wall of the heated plate 2601, and a plurality of round holes are formed in the heated fins 2602.

In the process that the cover plate 24 transfers heat upwards, the heated plate 2601 can absorb the heat, and the heated fins 2602 increase the surface area of the heated plate 2601, so that the heat can better and more contact the bottom of the feeding bin 26, the preheating effect of the materials in the feeding bin 26 is better, and the utilization rate of the waste heat is further improved.

Working principle: in operation, the kiln body 1 is driven by the motor 3 and rolls on the bearing 19 by the connecting roller 20, and high temperature processing and treatment are carried out in the kiln body 1, while the material enters the kiln body 1 from the feeding bin 26 and is discharged through the discharging bin 34, the sleeve 12 is arranged on the top of the discharging bin 34, the exhaust fan 14 works in the exhaust barrel 13 and exhausts to the outside of the exhaust barrel 13, so that negative pressure is generated in the exhaust barrel 13, the high temperature gas in the kiln body 1 is attracted into the exhaust barrel 13 by the negative pressure in the exhaust barrel 13 and led to the gas treatment mechanism 35, the gas treatment mechanism 35 is the prior art, and is not repeated here, at this time, the submersible pump 10 is started, the liquid in the water tank 9 is pumped into the hose 16 through the tee 11, the high temperature gas transfers the temperature to the exhaust barrel 13, the hose 16 takes heat away by the liquid flowing inside, and in the process, the air bag 15 is continuously expanded under the influence of high temperature, the air bag 15 is forced to squeeze the hose 16, the hose 16 is flattened, the contact area between the hose 16 and the exhaust drum 13 is increased, the pipe diameter area of the hose 16 is smaller, the flow rate of liquid in the hose 16 is increased, the speed of heat taken away by the exhaust drum 13 is further increased, the heat of the exhaust drum 13 is brought into the water tank 9 through the liquid, the liquid with temperature transfers the heat to the cover plate 24 through heat transfer, the cover plate 24 does not allow dust to fall into the water tank 9 when the submersible pump 10 works, and also plays a role of heat transfer, so that the heat of the liquid in the water tank 9 is transferred upwards into the feeding bin 26, the material in the feeding bin 26 ready to enter the kiln body 1 is preheated in advance, the waste heat generated by the device is effectively recovered, the fuel required in the kiln body 1 can be reduced, the device is more energy-saving.

The electric elements are electrically connected with an external main controller through a transformer, the main controller can be conventional known equipment for controlling a computer and the like, the product model provided by the invention is only the use of the technical scheme according to the structural characteristics of the product, the product can be adjusted and modified after purchase to be more matched with and conform to the technical scheme of the invention, the technical scheme is the best application technical scheme of the technical scheme, the model of the product can be replaced and modified according to the required technical parameters, and the main controller is familiar to the person skilled in the art, so that the corresponding use effect can be obtained through the technical scheme provided by the invention.

Although embodiments of the present invention 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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an energy-conserving cement rotary kiln, includes kiln body (1), first base (2), second base (7), third base (8) and feeding storehouse (26), its characterized in that: the device is characterized in that a motor (3) and a reduction gear box (4) are fixedly connected to the top of the first base (2), a driving gear (5) is installed on an output shaft of the motor (3) through the reduction gear box (4), a driven gear (6) meshed with the driving gear (5) is installed on the outer wall of the kiln body (1), two groups of mounting seats (17) are fixedly connected to the top of the second base (7), a bearing (19) is connected between each group of mounting seats (17) through a connecting shaft (18), a connecting roller (20) is sleeved on the outer wall of the kiln body (1), the connecting roller (20) is in rolling connection with the bearing (19), a feeding bin (26) is connected to one end of the kiln body (1), the feeding bin (26) is fixedly connected to the top of the third base (8), and a waste heat recovery mechanism is arranged in the third base (8).

The waste heat recovery mechanism comprises a water tank (9), a submersible pump (10), a three-way pipe (11), a sleeve (12) and an exhaust barrel (13), wherein one end of a kiln body (1) far away from a feeding bin (26) is connected with a discharging bin (34), the sleeve (12) is installed at the top of the discharging bin (34) in a penetrating mode, the top of the sleeve (12) is connected with a gas treatment mechanism (35), the sleeve (12) is fixedly connected to the top of a second base (7) through a support, the exhaust barrel (13) is inserted in the sleeve (12) and the bottom end of the exhaust barrel (13) is contacted with the top of one end of the kiln body (1), an air bag (15) is fixedly connected to the inner wall of the sleeve (12), a hose (16) is spirally wound on the outer wall of the exhaust barrel (13), the top of the inner wall of the exhaust barrel (13) is fixedly connected with an exhaust fan (14), the third base (8) is provided with a gas treatment mechanism (9), the sleeve (12) is fixedly connected to the bottom wall of the water tank (9), the three-way pipe (11) is connected to the output end of the submersible pump (10) and one end of the three-way pipe (16) far away from the hose (11), a cover plate (24) is fixedly connected in the water tank (9), and the cover plate (24) is positioned right below the feeding bin (26);

the waste heat recovery mechanism further comprises a heat dissipation mechanism, the heat dissipation mechanism comprises an annular contact pipe (21), a first connecting pipe (22) and a second connecting pipe (23), the annular contact pipe (21) is fixedly sleeved on the connecting shaft (18), the first connecting pipe (22) and the second connecting pipe (23) are respectively inserted into two sides of the annular contact pipe (21), the first connecting pipe (22) is inserted into the three-way pipe (11) in a penetrating way, and the second connecting pipe (23) penetrates through the second base (7), the first base (2) and the third base (8) and extends into the water tank (9);

the top of annular contact tube (21) is run through and is equipped with aqueduct (27), one side of aqueduct (27) is inserted and is equipped with shower nozzle (28), one side fixedly connected with four connecting rods (29) of shower nozzle (28), four the joint fixedly connected with connecting plate (30) jointly of one end of connecting rod (29), one side fixedly connected with memory alloy spring (31) that connecting plate (30) is close to connecting rod (29), one end fixedly connected with diffusion tube (32) and baffle (33) of memory alloy spring (31), baffle (33) sliding connection is in shower nozzle (28).

2. An energy efficient rotary cement kiln according to claim 1, characterized in that: the water tank (9) is internally and fixedly connected with a fan (25), the fan (25) is positioned right above the cover plate (24), and an air outlet of the fan (25) is arranged corresponding to the heated fins (2602).

3. An energy efficient rotary cement kiln according to claim 1, characterized in that: a plurality of radiating fins are vertically arranged on the top of the cover plate (24), and the fan (25) is located right above the radiating fins.

4. An energy efficient rotary cement kiln according to claim 1, characterized in that: the bottom of the feeding bin (26) further comprises a heated plate (2601) and heated fins (2602), the heated plate (2601) is arranged at the bent part of the bottom of the feeding bin (26), the heated fins (2602) are arranged on the outer wall of the heated plate (2601), and a plurality of round holes are formed in the heated fins (2602).