CN113587631A

CN113587631A - Energy-saving cement rotary kiln

Info

Publication number: CN113587631A
Application number: CN202110855185.4A
Authority: CN
Inventors: 许涛; 胡春磊
Original assignee: Individual
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: 2021-11-02
Anticipated expiration: 2041-07-26
Also published as: CN113587631B

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. According to the invention, by using the hose and the submersible pump in the waste heat recovery mechanism, the heat of the high-temperature gas can be effectively brought back to the water tank through the liquid, and the heat is transferred to the feeding bin, and the air bag beside the hose can extrude the hose under the high-temperature condition, so that the contact area between the hose and the exhaust funnel is increased, the flow velocity 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 to 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 rotary cement kiln.

Background

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

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

Although the above solution proposes a solution to the problem of dust and lubrication in the device, the following drawbacks still exist:

1. when the rotary cement kiln is used, a lot of high-temperature gas is generated, but the heat energy in the high-temperature gas is released in the air, cannot be recycled in time, and is a waste of resources.

2. In the working process of the cement rotary kiln, a large amount of materials are contained in the rotary kiln, and the rotary kiln generates heat outwards, so that a bearing in contact with the rotary kiln can absorb and generate much heat under long-term work, the working performance of the bearing under long-term work is greatly reduced, the bearing can be damaged, the rotary kiln is stopped, and huge economic loss is caused.

Therefore, an energy-saving rotary cement kiln is provided.

Disclosure of Invention

The invention aims to provide an energy-saving rotary cement kiln, which can effectively bring the heat of high-temperature gas back into a water pool 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 extrude the hose under the high-temperature condition, so that the contact area between the hose and an exhaust funnel is increased, the flow rate of the liquid in the hose is accelerated, the collection of the heat of high-temperature gas is further increased, more heat can be transferred into the feeding bin, and the problems in the background art are solved.

In order to achieve the purpose, the invention provides the following technical scheme:

an energy-saving rotary cement 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, the outer wall of the kiln body is sleeved with a connecting roller, the connecting roller is in rolling connection with the bearing, the feeding bin is connected to one end of the kiln body, the feeding bin is fixedly connected to 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 funnel, wherein one end of the kiln body, which is far away from the feeding bin, is connected with a discharging bin, the sleeve is arranged at the top of the discharging bin in a penetrating way, 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 exhaust funnel is inserted into the sleeve, the bottom end of the exhaust funnel is contacted with the top of one end of the kiln body, the inner wall of the sleeve is fixedly connected with an air bag, the outer wall of the exhaust funnel is spirally wound with a hose, the top of the inner wall of the exhaust funnel is fixedly connected with an exhaust fan, the third base is provided with the water tank, the bottom wall of the water tank is fixedly provided with the submersible pump, the output end of the submersible pump is connected with the three-way pipe, the hose is connected with one end of the three-way pipe, one end, which is far away from the three-way pipe, is inserted at one side of the water tank, the cover plate is fixedly connected in the water pool and is positioned right below the feeding bin.

When the kiln works, the kiln body is driven by a motor, the connecting roller rolls on a bearing and carries out high-temperature processing and treatment in the kiln body, materials enter the kiln body from a feeding bin and are discharged through a discharging bin, a sleeve is arranged at the top of the discharging bin, an exhaust fan works in an exhaust cylinder and exhausts air to the outside of the exhaust cylinder, negative pressure is generated in the exhaust cylinder, high-temperature gas in the kiln body is sucked into the exhaust cylinder by the negative pressure in the exhaust cylinder and led to a gas treatment mechanism, the gas treatment mechanism is the prior art and is not repeated, a submersible pump is started at the moment, liquid in a water pool is pumped into a hose through a three-way pipe, the high-temperature gas transmits the temperature to the exhaust cylinder, the hose takes away the heat through the liquid flowing inside, and in the process, an air bag can be continuously expanded under the influence of high temperature to force the air bag to extrude the hose, the flexible pipe is flattened, the contact area between the flexible pipe and the exhaust funnel is increased, meanwhile, the pipe diameter area of the flexible pipe becomes smaller, the flow speed of liquid in the flexible pipe is accelerated, the speed of taking away heat by the exhaust funnel is further accelerated, the heat of the exhaust funnel is taken into the water tank through the liquid, the liquid with the temperature transfers the heat to the cover plate through heat transfer, the cover plate prevents dust from falling into the water tank when the submersible pump works and plays a role in transferring the heat, so that the heat of the liquid in the water tank is transferred upwards into the feeding bin, materials to be fed into a kiln body in the feeding bin are preheated in advance, waste heat generated by the device is effectively recovered, fuel required in the kiln body can be reduced, and the device is more energy-saving.

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

When the kiln body rotates, the kiln body and materials in the kiln body are high in mass, and the kiln body can radiate heat outwards, so that the bearing and the connecting roller can absorb heat and generate frictional heat in the rolling process, when the submersible pump pumps out liquid through the three-way pipe, the liquid in the three-way pipe can flow to the annular contact pipe through the first connecting pipe and then flows out of the second connecting pipe at the other end of the annular contact pipe, the flowing liquid can take away the heat on the connecting shaft, due to the heat transfer principle, the heat on the high-temperature bearing can be transferred to the connecting shaft, further the heat on the bearing is taken away when the liquid in the annular contact pipe flows, the heat on the bearing is reduced, the bearing cannot generate cracks due to long-term work, the service life of the bearing is prolonged, and the heat can also be taken back to the water tank, then upwards transmit to the bottom in feeding storehouse, further increase the waste heat recovery effect of device, promote the energy-conserving effect of device.

Preferably, the top of the annular contact pipe is inserted with a water guide pipe in a penetrating manner, a nozzle is inserted into one side of the water guide pipe, four connecting rods are fixedly connected to one side of the nozzle, one ends of the four connecting rods are fixedly connected with a connecting plate together, a memory alloy spring is fixedly connected to one side of the connecting plate close to the connecting rods, a diffusion pipe and a baffle are fixedly connected to one end of the memory alloy spring, and the baffle is connected in the nozzle in a sliding manner.

And in the bearing work, if the condition that the high temperature appears, the memory alloy spring then can be because of receiving the influence of these heats and expand, then the memory alloy spring then with baffle to the interior top of shower nozzle, make the liquid of the intraductal flow of annular contact can outwards spout through the shower nozzle, these liquid can directly strike the diffusion tube on, spray around to the bearing, reduce the temperature on the bearing, and the diffusion tube not only can make liquid spread, also isolated liquid directly sprays on the memory alloy spring simultaneously, make the memory alloy spring can keep the expanded state effectively, guarantee the cooling effect to the bearing, thereby can reduce the bearing effectively and appear the cracked condition even because of the high temperature.

Preferably, a plurality of radiating fins are vertically installed on the top of the cover plate, and the fan is located right above the radiating fins.

When the submersible pump continuously pumps liquid to collect heat and return to the water pool, 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 a bent position at the bottom of the feeding bin, the outer wall of the heated plate is provided with a plurality of heated fins, and the heated fins are provided with a plurality of round holes.

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 contact the bottom of the feeding bin more, the preheating effect of materials in the feeding bin is better, and the utilization rate of waste heat is further improved.

Preferably, fixedly connected with fan and fan are located the apron directly over in the pond, the fan passes through link fixed connection in the pond, the air outlet of fan sets up with being heated the correspondence of fin.

The fan above the apron can outwards give off the heat on apron surface fast, has not only accelerated the heat and to the transmission in feeding storehouse, also makes the temperature of liquid in the pond reduce more fast simultaneously, makes the cooling effect of bearing better to and the speed of absorbing the interior high-temperature gas heat of aiutage is faster, thermal transmission and absorptive efficiency in the further hoisting device.

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

1. according to the invention, by using the hose and the submersible pump in the waste heat recovery mechanism, the heat of the high-temperature gas can be effectively brought back to the water tank through the liquid, and the heat is transferred to the feeding bin, and the air bag beside the hose can extrude the hose under the high-temperature condition, so that the contact area between the hose and the exhaust funnel is increased, the flow velocity 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 to the feeding bin.

2. The invention can absorb the heat of the bearing and keep the working state of the bearing under the high-temperature condition while absorbing the heat of the high-temperature gas by using the three-way pipe and the first connecting pipe, and the top of the annular contact pipe is provided with the spray head, so that the memory alloy spring is triggered to spray liquid to cool the periphery of the bearing when the bearing is overheated, and the damage caused by overheating of the bearing is further reduced.

3. According to the invention, the water pool is used, heat generated by the bearing and high-temperature gas is upwards transferred through the cover plate and the radiating fins on the cover plate, and the fan is used for quickly transferring the heat to the heated fins, so that the heating process of the bottom of the feeding bin and the heat dissipation in the water pool 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 of a third base of the present invention with a tee and a hose;

FIG. 5 is an enlarged view taken at A in FIG. 1 according to the present invention;

FIG. 6 is a schematic view of the connection between the showerhead and the diffuser pipe according to the present invention.

In the figure: 1. a kiln body; 2. a first base; 3. a motor; 4. a reduction gear box; 5. a driving gear; 6. a driven gear; 7. a second base; 8. a third base; 9. a pool; 10. a submersible pump; 11. a three-way pipe; 12. a sleeve; 13. an exhaust funnel; 14. an exhaust fan; 15. an air bag; 16. a hose; 17. a mounting seat; 18. a connecting shaft; 19. a bearing; 20. a connecting roller; 21. an annular contact tube; 22. a first connecting pipe; 23. a second connecting 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 diffuser tube; 33. a baffle plate; 34. a discharging bin; 35. a gas processing mechanism.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" 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. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

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

an 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, a bearing 19 is connected between each group of mounting seats 17 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 funnel 13, wherein one end of the kiln body 1, which is far away from the 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 manner, the top of the sleeve 12 is connected with a gas treatment mechanism 35, the sleeve 12 is fixedly connected to the top of the second base 7 through a support, the exhaust funnel 13 is inserted into the sleeve 12, the bottom end of the exhaust funnel 13 is contacted with the top of one end of the kiln body 1, the inner wall of the sleeve 12 is fixedly connected with an air bag 15, the outer wall of the exhaust funnel 13 is spirally wound with a hose 16, the top of the inner wall of the exhaust funnel 13 is fixedly connected with an exhaust fan 14, the water tank 9 is arranged on the third base 8, the submersible pump 10 is fixedly installed at the bottom wall of the water tank 9, the three-way pipe 11 is connected to the output end of the submersible pump 10, the hose 16 is connected to one end of the three-way pipe 11, one end of the hose 16, which is far away from the three-way pipe 11, is inserted at one side of the water tank 9, 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.

When the kiln body 1 is operated, the kiln body 1 is driven by the motor 3, the connecting roller 20 rolls on the bearing 19, high-temperature processing and treatment are carried out in the kiln body 1, materials enter the kiln body 1 from the feeding bin 26 and are discharged through the discharging bin 34, the sleeve 12 is installed at the top of the discharging bin 34, the exhaust fan 14 operates in the exhaust funnel 13 and exhausts the air to the outside of the exhaust funnel 13, so that negative pressure is generated in the exhaust funnel 13, high-temperature gas in the kiln body 1 is sucked into the exhaust funnel 13 by the negative pressure in the exhaust funnel 13 and led to the gas treatment mechanism 35, the gas treatment mechanism 35 is the prior art, and redundant description is omitted, at this time, the submersible pump 10 is started, liquid in the water tank 9 is pumped into the hose 16 through the three-way pipe 11, the high-temperature gas transmits the temperature to the exhaust funnel 13, the hose 16 transmits the heat through 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 press the hose 16, the hose 16 is flattened, the contact area between the hose 16 and the exhaust funnel 13 is increased, the pipe diameter area of the hose 16 is reduced, the flow rate of liquid in the hose 16 is increased, the speed of heat taking away by the exhaust funnel 13 is further increased, the heat of the exhaust funnel 13 is taken 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 is used for preventing dust from falling into the water tank 9 when the submersible pump 10 works and plays a role in 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, and simultaneously, 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 waste heat recovery mechanism further includes a heat dissipation mechanism, the heat dissipation mechanism includes an annular contact pipe 21, a first connection pipe 22 and a second connection pipe 23, the annular contact pipe 21 is fixedly sleeved on the connection shaft 18, the first connection pipe 22 and the second connection pipe 23 are respectively inserted at two sides of the annular contact pipe 21, the first connection pipe 22 is inserted on the three-way pipe 11 in a penetrating manner, and the second connection pipe 23 penetrates through the second base 7, the first base 2 and the third base 8 and extends into the water tank 9.

When the kiln body 1 rotates, because the kiln body 1 and the materials in the kiln body 1 have large mass, and the kiln body 1 can radiate heat outwards, the bearing 19 and the connecting roller 20 can absorb heat and generate heat of friction in the rolling process, while the submersible pump 10 pumps 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, and then flow out from 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, due to the principle of heat transfer, the heat on the bearing 19 with high temperature can be transferred to the connecting shaft 18, 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, so that the bearing 19 cannot generate cracks due to long-term work, the service life of the bearing 19 is prolonged, and the heat is also brought back to the water tank 9 and then transferred upwards to the bottom of the feeding bin 26, so that the waste heat recovery effect of the device is further increased, and the energy-saving effect of the device is improved.

Referring to fig. 1 and 5, as an embodiment of the present invention, a water conduit 27 is inserted through the top of the annular contact tube 21, a nozzle 28 is inserted into one side of the water conduit 27, four connecting rods 29 are fixedly connected to one side of the nozzle 28, a connecting plate 30 is fixedly connected to one end of each of the four connecting rods 29, a memory alloy spring 31 is fixedly connected to one side of the connecting plate 30 close to the connecting rod 29, a diffusion tube 32 and a baffle 33 are fixedly connected to one end of the memory alloy spring 31, and the baffle 33 is slidably connected in the nozzle 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 memory alloy spring 31 pushes the baffle plate 33 towards the inside of the spray head 28, so that the liquid flowing in the annular contact pipe 21 can be sprayed outwards through the spray head 28, the liquid can directly impact the diffusion pipe 32 and be sprayed to the periphery of the bearing 19, the temperature on the bearing 19 is reduced, the diffusion pipe 32 not only can diffuse the liquid, but also can isolate the liquid from being directly sprayed onto the memory alloy spring 31, so that the memory alloy spring 31 can effectively keep the expanded state, the cooling effect on the bearing 19 is ensured, and the condition that the bearing 19 cracks or even breaks due to high temperature can be effectively reduced.

Referring to fig. 1, a fan 25 is fixedly connected to the inside of the water tank 9, the fan 25 is located right 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 radiate heat on the surface of the cover plate 24 outwards, so that not only is the transfer of heat to the feeding bin 26 accelerated, but also the temperature of liquid in the water tank 9 can be reduced faster, the cooling effect of the bearing 19 is better, the speed for absorbing heat of high-temperature gas in the exhaust funnel 13 is faster, and the heat transfer and absorption efficiency in the device are further improved.

Referring to fig. 1, a plurality of heat dissipation fins are vertically installed on 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 the liquid to collect heat and return the heat to the water tank 9, the heat is transferred upwards through the cover plate 24 and the heat dissipation 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 position 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 circular holes are disposed on 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 contact the bottom of the feeding bin 26, the preheating effect of the material in the feeding bin 26 is better, and the utilization rate of the waste heat is further improved.

The working principle is as follows: when the kiln body 1 is operated, the kiln body 1 is driven by the motor 3, the connecting roller 20 rolls on the bearing 19, high-temperature processing and treatment are carried out in the kiln body 1, materials enter the kiln body 1 from the feeding bin 26 and are discharged through the discharging bin 34, the sleeve 12 is installed at the top of the discharging bin 34, the exhaust fan 14 operates in the exhaust funnel 13 and exhausts the air to the outside of the exhaust funnel 13, so that negative pressure is generated in the exhaust funnel 13, high-temperature gas in the kiln body 1 is sucked into the exhaust funnel 13 by the negative pressure in the exhaust funnel 13 and led to the gas treatment mechanism 35, the gas treatment mechanism 35 is the prior art, and redundant description is omitted, at this time, the submersible pump 10 is started, liquid in the water tank 9 is pumped into the hose 16 through the three-way pipe 11, the high-temperature gas transmits the temperature to the exhaust funnel 13, the hose 16 transmits the heat through 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 press the hose 16, the hose 16 is flattened, the contact area between the hose 16 and the exhaust funnel 13 is increased, the pipe diameter area of the hose 16 is reduced, the flow rate of liquid in the hose 16 is increased, the speed of heat taking away by the exhaust funnel 13 is further increased, the heat of the exhaust funnel 13 is taken 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 is used for preventing dust from falling into the water tank 9 when the submersible pump 10 works and plays a role in 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, and simultaneously, the fuel required in the kiln body 1 can be reduced, the device is more energy-saving.

The electric elements presented in the document are all electrically connected with an external master controller through a transformer, and the master controller can be a conventional known device controlled by a computer and the like, the product model provided by the invention is only used according to the structural characteristics of the product, the product can be adjusted and modified after being purchased to be more matched with and accord with the technical scheme of the invention, the product model is a best application technical scheme of the technical scheme, the product model can be replaced and modified according to the required technical parameters, and the product model is well known by the technical personnel in the field, so the technical personnel in the field can clearly obtain the corresponding use effect through the technical scheme provided by the invention.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments 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 the kiln body (1), first base (2), second base (7), third base (8) and feeding storehouse (26), its characterized in that: the kiln comprises a first base (2), a motor (3) and a reduction gear box (4) are fixedly connected to the top of the first base (2), an output shaft of the motor (3) is provided with a driving gear (5) through the reduction gear box (4), a driven gear (6) meshed with the driving gear (5) is arranged on the outer wall of a kiln body (1), the top of a second base (7) is fixedly connected with two groups of mounting seats (17), 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 a third base (8), and a waste heat recovery mechanism is arranged in the third base (8);

the waste heat recovery mechanism comprises a water pool (9), a submersible pump (10), a three-way pipe (11), a sleeve (12) and an exhaust funnel (13), one end of the kiln body (1) far away from the 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 the second base (7) through a support, the exhaust funnel (13) is inserted into the sleeve (12), the bottom end of the exhaust funnel (13) is in contact with the top of one end of the kiln body (1), the inner wall of the sleeve (12) is fixedly connected with an air bag (15), the outer wall of the exhaust funnel (13) is spirally wound with a hose (16), the top of the inner wall of the exhaust funnel (13) is fixedly connected with a fan (14), the exhaust water pool (9) is arranged on the third base (8), immersible pump (10) fixed mounting is in the diapire of pond (9), the output in immersible pump (10) is connected in three-way pipe (11), the one end at three-way pipe (11) is connected in hose (16), one end that three-way pipe (11) were kept away from in hose (16) is inserted and is established one side in pond (9), fixed connection apron (24) in pond (9), apron (24) are located feeding storehouse (26) under.

2. The energy-saving rotary cement kiln as claimed in claim 1, wherein: 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), 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 pool (9).

3. The energy-saving rotary cement kiln as claimed in claim 2, wherein: the top of annular contact pipe (21) is run through and is inserted and be equipped with aqueduct (27), one side of aqueduct (27) is inserted and is equipped with shower nozzle (28), four connecting rods (29) of one side fixedly connected with of shower nozzle (28), four the common fixedly connected with connecting plate (30) of one end of connecting rod (29), one side fixedly connected with memory alloy spring (31) that connecting plate (30) are close to connecting rod (29), the 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).

4. The energy-saving rotary cement kiln as claimed in claim 1, wherein: fixedly connected with fan (25) and fan (25) are located apron (24) directly over in pond (9), the air outlet of fan (25) and the setting that corresponds of being heated fin (2602).

5. The energy-saving rotary cement kiln as claimed in claim 1, wherein: the top of the cover plate (24) is vertically provided with a plurality of radiating fins, and the fan (25) is positioned right above the radiating fins.

6. The energy-saving rotary cement kiln as claimed in claim 1, wherein: the bottom of the feeding bin (26) further comprises a heated plate (2601) and heated fins (2602), the heated plate (2601) is arranged at a bent position at 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).