A rotary kiln automatic temperature control system and a pulverized coal consumption optimization method

Abstract

The present invention relates to the technical field of cement calcining, and specifically to an automatic temperature control system for a rotary kiln and a method for optimizing coal powder usage. The system mainly uses the cooperation of a temperature control auxiliary mechanism and auxiliary accessories to assist in controlling the temperature inside the kiln body, and while ensuring that the temperature meets working requirements, excess heat can also be recycled and utilized. Through the temperature monitoring controller, heating wire and symmetrically arranged fans in the temperature control auxiliary mechanism, timely auxiliary regulation of high temperature can be performed, and through the arrangement of a winding tube and a heat-conducting pipe body, the temperature can be regulated while avoiding heat waste. In addition, the temperature control auxiliary mechanism and auxiliary accessories can work together to perform good heat preservation, reduce the use of coal powder, and the amount of coal powder used is used according to the actual temperature control situation, thereby improving the efficiency of coal powder use.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cement calcination, in particular to a rotary kiln automatic temperature control system and a coal powder dosage optimization method. BACKGROUND

[0002] The cement rotary kiln belongs to the building material equipment category, and is a rotary kiln of a lime kiln. According to different processed materials, the rotary kiln can be divided into a cement rotary kiln, a metallurgical and chemical rotary kiln, and a lime rotary kiln. The cement rotary kiln is the main equipment of a cement clinker dry process and a wet process production line.

[0003] The existing patent file with the announcement number CN215638728U discloses a high-stability conveying device for head coal and tail coal, which comprises a mounting groove, a kiln tail, and a rotary kiln. The outer wall of the rotary kiln is provided with a gear, the outer wall of the gear is provided with a power device, the power device is matched with the gear, and the rotary kiln is provided with a kiln tail on one side. The new air blower is used in cooperation with the air floating bearing to reduce the noise caused by violent shaking. Due to the stable operation, the maintenance period of the device is lengthened, and the service life is increased. The negative pressure machine in the kiln tail is used in cooperation with the air blower to work, so that the efficiency of the coal blowing step is greatly improved.

[0004] For the conveying and adding work of coal powder in the rotary kiln, the conveyed coal powder is preheated and heated for combustion. For the temperature control of the kiln body, on the one hand, it is related to the combustion quality of the coal powder; on the other hand, it has a certain influence on the use ratio of the coal powder. The rotary kiln under the existing technology lacks a matched kiln body temperature control auxiliary device. For example, the high temperature on the kiln body will be lost, which has an influence on the temperature stability. When the temperature is high, the cooling control of the kiln body is generally natural cooling, which not only has a slow efficiency, but also causes waste of heat. When the temperature is heated again, a large amount of coal powder needs to be burned to reach the required temperature requirement, so that the use efficiency of the coal powder is reduced.

[0005] Therefore, the rotary kiln automatic temperature control system and the coal powder dosage optimization method are used to solve the problem of the lack of a matched kiln body temperature control auxiliary device in the existing technology, so as to improve the use efficiency of the coal powder. SUMMARY

[0006] The purpose of the present application is to provide a rotary kiln automatic temperature control system and a coal powder dosage optimization method to solve the problem of the lack of a matched kiln body temperature control auxiliary device in the existing technology in the background technology, so as to improve the use efficiency of the coal powder.

[0007] In order to achieve the above object, the present application provides the following technical scheme: A rotary kiln automatic temperature control system and a pulverized coal dosage optimization method, comprising a support connecting seat, a support plate, a heat conducting ball bearing, a protective load bearing tube, a temperature control auxiliary mechanism and an auxiliary accessory; The temperature control auxiliary mechanism is connected and arranged on the protective load bearing tube, the temperature control auxiliary mechanism is connected and arranged with the auxiliary accessory, the heat conducting ball bearing is arranged in the inner sleeve of the two ends of the protective load bearing tube, the heat conducting ball bearing is fixedly arranged on the outer side wall of the kiln body, the top end of the support connecting seat is fixedly provided with a support plate, and the support plate is fixedly connected with the protective load bearing tube through screws.

[0008] Preferably, the temperature control auxiliary mechanism comprises an input pipe, a first control valve, an output pipe, a second control valve, a winding pipe, a temperature monitoring controller, an electric heating wire, a connecting support rod, a heat conducting pipe body, an auxiliary ball, a connecting body, a fan, a mounting clamping groove, a mounting clamping plate, a connecting strip, a support, a cleaning soft wool strip and a filter screen; The connecting support rod is fixedly arranged on the inner side wall of the protective load bearing tube, the auxiliary ball is movably embedded on the inner side wall of the heat conducting pipe body, the winding pipe is wound on the outer side wall of the heat conducting pipe body, one end of the winding pipe is provided with the input pipe, the other end of the winding pipe is provided with the output pipe, the input pipe and the output pipe penetrate through the protective load bearing tube and extend outward, the first control valve is connected and arranged on the input pipe, the second control valve is connected and arranged on the output pipe, the temperature monitoring controller is arranged on the protective load bearing tube, and the temperature monitoring controller is connected with the electric heating wire, the electric heating wire is wound on the heat conducting pipe body, the connecting body is symmetrically arranged on the bottom side of the protective load bearing tube, the fan is arranged in the connecting body, the mounting clamping groove is arranged on the rotating shaft of the fan, the mounting clamping groove is matched with the mounting clamping plate, the mounting clamping plate is fixed by screws, the connecting strip is fixedly arranged on the mounting clamping plate, the support is equidistantly arranged at one end of the connecting strip, the cleaning soft wool strip is connected and arranged on the support, and the filter screen is fixedly connected with the connecting body by screws.

[0009] Preferably, the connecting body is symmetrically arranged with two on the bottom side of the protective load bearing tube.

[0010] Preferably, the winding pipe is connected with the auxiliary accessory.

[0011] Preferably, the two connecting bodies symmetrically arranged on the bottom side of the protective load bearing tube, the fan in one of the connecting bodies inhales air, and the fan in the other connecting body exhales air, forming a circulation.

[0012] Preferably, the auxiliary accessories include loading grooves, loading plates, fixed hemispherical shells, external thread connecting rings, loading hemispherical shells, annular connecting grooves, auxiliary through holes, frustums, heat preservation sleeve bodies, arc-shaped pasting plates, connecting main rods, connecting branch rods, and warning small bells; the loading grooves are equidistantly arranged on the outer sidewall of the winding pipe, and the loading grooves are adaptively clamped with the loading plates; the loading plates are fixed by screws, and the fixed hemispherical shells are fixed on the loading plates; the loading grooves are equidistantly arranged on the winding pipe, and the loading grooves are adaptively clamped with the loading plates; the loading plates are fixed by screws, and the fixed hemispherical shells are fixed on the loading plates; the shell opening position of the fixed hemispherical shells is fixed with the external thread connecting rings; the shell opening position of the loading hemispherical shells is provided with the annular connecting grooves; the annular connecting grooves correspond to the setting positions of the external thread connecting rings, have the same number of groups, and are adaptively threadedly connected; the auxiliary through holes are arranged on the sidewalls of the loading hemispherical shells and the fixed hemispherical shells; the inner sidewall hole opening position of the auxiliary through holes is fixed with the frustums; the frustums are provided with extension grooves, and the outer sidewall of the frustums is fixed with the heat preservation sleeve bodies; the arc-shaped pasting plates are fixed on the inner top position of the loading hemispherical shells by screws, and the arc-shaped pasting plates are fixed with the connecting main rods; the end side of the connecting main rods is equidistantly fixed with the connecting branch rods; and the warning small bells are connected to the connecting branch rods.

[0013] Preferably, the loading hemispherical shells and the fixed hemispherical shells have the same number of groups and are connected to form a spherical shell.

[0014] Preferably, the heat preservation sleeve bodies and the frustums correspond to the setting positions, have the same number of groups, the large end of the frustum is connected to the hole opening of the auxiliary through hole, and the extension groove in the frustum is in communication with the auxiliary through hole.

[0015] Preferably, the frustum and the auxiliary through hole correspond to the setting positions and have the same number of groups.

[0016] The coal powder usage method adopted by the automatic temperature control system of the rotary kiln is characterized in that the coal powder usage method is as follows:

[0017] The temperature in the kiln body is controlled by the cooperation of the temperature control auxiliary mechanism and the auxiliary accessories, the excess heat can be recycled while ensuring that the temperature meets the working requirements; the high temperature can be timely controlled by the temperature monitoring controller, the electric heating wire, and the symmetrically arranged fans in the temperature control auxiliary mechanism, the waste of heat is avoided by adjusting the temperature through the winding pipe and the heat conducting pipe body, and the temperature control auxiliary mechanism and the auxiliary accessories can work together to achieve good heat preservation effect and reduce the use of coal powder.

[0018] Compared with the prior art, the present application has the following advantages:

[0019] The rotary kiln automatic temperature control system is designed, which is mainly used for auxiliary control of the temperature in the kiln body through the cooperation of the temperature control auxiliary mechanism and the auxiliary accessory, and the excess heat can be recycled while ensuring that the temperature meets the working requirements; the high temperature can be timely assisted and regulated through the temperature monitoring controller, the electric heating wire and the symmetrically arranged fans in the temperature control auxiliary mechanism, and the waste of heat can be avoided while regulating the temperature through the winding pipe and the heat conducting pipe body; the temperature control auxiliary mechanism and the auxiliary accessory can also work together to have a good heat preservation effect, reduce the use of coal powder, and improve the use efficiency of coal powder; therefore, the present application solves the problem of lack of a kiln body temperature control auxiliary device for the rotary kiln in the prior art, so as to improve the use efficiency of coal powder. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a front side view of the structure connection of the rotary kiln automatic temperature control system of the present application.

[0021] Figure 2 It is a bottom view of the structure connection of the rotary kiln automatic temperature control system of the present application.

[0022] Figure 3 It is a structure connection schematic view of the temperature control auxiliary mechanism and the auxiliary accessory of the present application.

[0023] Figure 4 It is a structure connection schematic view of the protective bearing pipe body of the present application.

[0024] Figure 5 It is a structure connection schematic view of the protective bearing pipe body and the heat conducting pipe body of the present application.

[0025] Figure 6 It is a structure connection schematic view of the connecting body of the present application.

[0026] Figure 7 It is a structure connection schematic view of the winding pipe and the auxiliary accessory of the present application.

[0027] Figure 8 It is a structure connection top view of the auxiliary accessory of the present application.

[0028] Figure 9 It is a structure connection bottom view of the auxiliary accessory of the present application.

[0029] Figure 10 It is a structure connection schematic view of the present application. Figure 9 It is a structure connection partial enlarged schematic view of the present application.

[0030] In the figure: kiln body 1, support connecting seat 2, support plate 3, heat conducting ball bearing 4, protective load bearing tube 5, temperature control auxiliary mechanism 6, input pipe 601, first control valve 602, output pipe 603, second control valve 604, winding pipe 605, temperature monitoring controller 606, heating wire 607, connecting support rod 608, heat conducting pipe 609, auxiliary ball 610, connecting body 611, fan 612, mounting clamping groove 613, mounting clamping plate 614, connecting strip 615, support 616, cleaning soft cotton strip 617, filter screen 618, auxiliary accessory 7, loading groove 701, loading plate 702, fixed hemispherical shell 703, external thread connecting ring 704, loading hemispherical shell 705, annular connecting groove 706, auxiliary through hole 707, conical body 708, heat preservation sleeve 709, arc-shaped paste plate 710, connecting main rod 711, connecting branch rod 712, warning small bell 713. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be described clearly and completely below. All other embodiments obtained by those of ordinary skill in the art without creative labor, based on the embodiments in the present application, belong to the scope of protection of the present application.

[0032] Embodiment one: please refer to Figures 1-4 A rotary kiln automatic temperature control system and a coal powder usage optimization method, comprising a support connecting seat 2, a support plate 3, a heat conducting ball bearing 4, a protective load bearing tube 5, a temperature control auxiliary mechanism 6 and an auxiliary accessory 7. The temperature control auxiliary mechanism 6 is connected and arranged on the protective load bearing tube 5, and the temperature control auxiliary mechanism 6 is connected and arranged with the auxiliary accessory 7. The heat conducting ball bearing 4 is arranged in the two ends of the protective load bearing tube 5, and is fixedly arranged on the outer wall of the kiln body 1. The support plate 3 is fixedly arranged at the top end of the support connecting seat 2, and is fixedly connected with the protective load bearing tube 5 through screws. The present application mainly cooperates with the temperature control auxiliary mechanism 6 and the auxiliary accessory 7 to assist in controlling the temperature in the kiln body 1. The excess heat can be recycled while ensuring that the temperature meets the working requirements. The temperature monitoring controller 606, the heating wire 607 and the symmetrically arranged fan 612 in the temperature control auxiliary mechanism 6 can assist in regulating the high temperature in time. The winding pipe 605 and the heat conducting pipe 609 can be arranged to regulate the temperature and avoid waste of heat. The temperature control auxiliary mechanism 6 and the auxiliary accessory 7 can also work together to have a good heat preservation effect, reduce the use of coal powder, and use the coal powder according to the actual temperature control situation.

[0033] Further, the problem of lack of kiln body temperature control auxiliary device for rotary kiln in the prior art is solved to improve the coal powder usage efficiency.

[0034] Embodiment two: on the basis of embodiment one, please refer to Figures 2-6 The temperature control auxiliary mechanism 6 comprises an input pipe 601, a first control valve 602, an output pipe 603, a second control valve 604, a winding pipe 605, a temperature monitoring controller 606, an electric heating wire 607, a connecting support rod 608, a heat conduction pipe body 609, auxiliary balls 610, a connecting body 611, a fan 612, a mounting clamping groove 613, a mounting clamping plate 614, a connecting strip 615, a support 616, a cleaning soft wool strip 617, and a filter screen 618. The connecting support rods 608 are symmetrically and fixedly arranged on the outer side walls of the heat conduction pipe body 609, one end of the connecting support rod 608 is fixedly arranged on the inner side wall of the protective bearing pipe body 5, the auxiliary balls 610 are equidistantly and movably embedded on the inner side wall of the heat conduction pipe body 609, and the winding pipe 605 is wound on the outer side wall of the heat conduction pipe body 609. The auxiliary accessory 7 is connected to the winding pipe 605. One end of the winding pipe 605 is provided with the input pipe 601, and the other end of the winding pipe 605 is provided with the output pipe 603. The input pipe 601 and the output pipe 603 both penetrate the protective bearing pipe body 5 and extend outward. The first control valve 602 is connected to the input pipe 601, and the second control valve 604 is connected to the output pipe 603. The temperature monitoring controller 606 is arranged on the protective bearing pipe body 5 and connected with the electric heating wire 607. The electric heating wire 607 is wound on the heat conduction pipe body 609. The connecting body 611 is symmetrically arranged on the bottom side of the protective bearing pipe body 5, and the fan 612 is arranged in the connecting body 611. The connecting body 611 is symmetrically arranged on the bottom side of the protective bearing pipe body 5. The mounting clamping groove 613 is arranged on the rotating shaft of the fan 612, and the mounting clamping groove 613 is matched with the mounting clamping plate 614. The mounting clamping plate 614 is fixed by screws. The connecting strip 615 is fixedly arranged on the mounting clamping plate 614. One end of the connecting strip 615 is equidistantly provided with the support 616. The cleaning soft wool strip 617 is connected to the support 616. The filter screen 618 is fixedly connected to the connecting body 611 by screws. When the temperature in the kiln body 1 is high, the heat can be recycled while the temperature is controlled. In this process, cooling water is introduced into the input pipe 601. The cooling water controls the temperature of the side wall of the kiln body 1. At the same time, the cooling water is heated by the heat conduction of the heat conduction pipe body 609 and is output through the output pipe 603 for other purposes. The heated gas can be used as heating or other purposes. If rapid auxiliary cooling is needed, the two fans 612 on the bottom side of the protective bearing pipe body 5 are started. One fan 612 in one of the two connecting bodies 611 symmetrically arranged on the bottom side of the protective bearing pipe body 5 sucks air, and the other fan 612 in the other connecting body 611 blows air, forming a circulation. The cooling effect is accelerated.

[0035] If the kiln body 1 needs to be assisted in heating or heat preservation work, the first control valve 602 and the second control valve 604 are closed at the same time, so that the heated water stays, at this time a simple heat preservation protective layer is formed, or the temperature monitoring controller 606 controls the heating of the heating wire 607 to reach the required temperature.

[0036] Further solve the problem of lack of kiln body temperature control auxiliary device in the prior art rotary kiln to improve the use efficiency of coal powder.

[0037] Example three: on the basis of example two, please refer to Figure 4 and Figures 7-10 The auxiliary accessory 7 includes a loading groove 701, a loading plate 702, a fixed hemispherical shell 703, an external thread connection ring 704, a loading hemispherical shell 705, an annular connection groove 706, an auxiliary through hole 707, a conical body 708, a heat preservation sleeve 709, an arc-shaped paste plate 710, a connection main rod 711, a connection branch rod 712, and a warning small bell 713. The loading grooves 701 are equidistantly arranged on the outer sidewall of the winding pipe 605, and the loading grooves 701 are adaptively connected with the loading plate 702, the loading plate 702 is fixed by screws, and the fixed hemispherical shell 703 is fixedly arranged on the loading plate 702. The loading grooves 701 are equidistantly arranged on the winding pipe 605, and the loading grooves 701 are adaptively connected with the loading plate 702, the loading plate 702 is fixed by screws, and the fixed hemispherical shell 703 is fixedly arranged on the loading plate 702. The shell opening position of the fixed hemispherical shell 703 is fixedly provided with the external thread connection ring 704, the shell opening position of the loading hemispherical shell 705 is provided with the annular connection groove 706, the annular connection groove 706 and the external thread connection ring 704 are correspondingly arranged and have the same number of groups, and they are adaptively threadedly connected. The loading hemispherical shell 705 and the fixed hemispherical shell 703 have the same number of groups, and they are connected to form a spherical shell. The side walls of the loading hemispherical shell 705 and the fixed hemispherical shell 703 are both provided with auxiliary through holes 707, and the inner sidewall hole opening position of the auxiliary through hole 707 is fixedly provided with the conical body 708. The conical body 708 and the auxiliary through hole 707 are correspondingly arranged and have the same number of groups. The conical body 708 is provided with an extension groove, and the outer sidewall of the conical body 708 is fixedly provided with the heat preservation sleeve 709. The heat preservation sleeve 709 and the conical body 708 are correspondingly arranged and have the same number of groups. The large end of the conical body 708 is connected with the hole opening of the auxiliary through hole 707, and the extension groove in the conical body 708 is in communication with the auxiliary through hole 707. The arc-shaped paste plate 710 is fixedly arranged on the inner side top position of the loading hemispherical shell 705 by screws, and the arc-shaped paste plate 710 is fixedly provided with the connection main rod 711. The end side of the connection main rod 711 is equidistantly fixedly provided with the connection branch rod 712, and the connection branch rod 712 is connected with the warning small bell 713.

[0038] Here in the process of cooling, the two fans 612 formed on the bottom side of the protective carrier tube 5 into the ball shell circulation flow, so that the cold air in the protective carrier tube 5 to increase the residence time, further improve its cooling effect, but also can take away the heat absorbed in the shell heat preservation sleeve 709.

[0039] Here in the ball shell inner cavity cone body 708 outside the wall of the heat preservation sleeve 709, the heat of the kiln body 1 is transferred to the heat preservation sleeve 709, and a heat preservation layer is provided for the heat preservation work of the heat pipe 609 and the protective carrier tube 5, so that the heat is not easy to lose.

[0040] Further solve the problem of lack of kiln temperature control auxiliary device in the prior art, in order to improve the use efficiency of pulverized coal.

[0041] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A rotary kiln automatic temperature control system, characterized by: The invention comprises a support connecting seat (2), a support plate (3), a heat-conducting ball bearing (4), a protective bearing tube (5), a temperature control auxiliary mechanism (6) and an auxiliary accessory (7); the protective bearing tube (5) is connected with the temperature control auxiliary mechanism (6), the temperature control auxiliary mechanism (6) is connected with the auxiliary accessory (7), the two ends of the protective bearing tube (5) are provided with heat-conducting ball bearings (4), the heat-conducting ball bearings (4) are sleeved and fixedly provided on the outer wall of the kiln body (1), the top end of the support connecting seat (2) is fixedly provided with a support plate (3), and the support plate (3) is fixedly connected to the protective bearing tube (5) by screws; The temperature control auxiliary mechanism (6) comprises an input tube (601), an output tube (603), a winding tube (605), a temperature monitoring controller (606), a heating wire (607), a connector (611) and a fan (612); one end of the winding tube (605) is provided with the input tube (601), the other end of the winding tube (605) is provided with the output tube (603), the connector (611) is symmetrically arranged on the bottom side of the protective supporting tube body (5), and the fan (612) is provided in the connector (611); The auxiliary accessory (7) comprises a loading slot (701), a loading plate (702), a fixed hemispherical shell (703), an external threaded connecting ring (704), a loading hemispherical shell (705), an annular connecting slot (706), an auxiliary through hole (707), a frustum (708), a heat-insulating sleeve (709), an arc-shaped plate (710), a connecting main rod (711), a connecting support rod (712), and a warning bell (713); the loading slots (701) are equidistantly arranged on the outer wall of the winding tube (605), and the loading slots (701) are adapted to be clamped with the loading plate (702); the loading plate (702) is fixed by screws, and a fixed hemispherical shell (703) is fixedly arranged on the loading plate (702); the shell opening of the fixed hemispherical shell (703) is fixedly provided with an external threaded connecting ring (704); the shell opening of the loading hemispherical shell (705) is provided with an annular connecting ring (713). Groove (706), the annular connecting groove (706) and the external thread connecting ring (704) are arranged at corresponding positions and have the same number of groups, and the two are adapted to be threadedly connected, the loading hemispherical shell (705) and the fixed hemispherical shell (703) are both provided with auxiliary through holes (707) on their side walls, a frustum (708) is fixedly provided at the opening position of the inner wall of the auxiliary through hole (707), an extension groove is provided in the frustum (708), and a heat-insulating sleeve (709) is fixedly provided on the outer wall of the frustum (708), the arc-shaped plate (710) is fixedly provided at the inner top position of the loading hemispherical shell (705) by screws, and a connecting main rod (711) is fixedly provided on the arc-shaped plate (710), a connecting support rod (712) is fixedly provided at an equal distance on the end side of the connecting main rod (711), and a small warning bell (713) is connected to the connecting support rod (712).

2. The automatic temperature control system for a rotary kiln according to claim 1, characterized in that: The temperature control auxiliary mechanism (6) further comprises a first control valve (602), a second control valve (604), a connecting support rod (608), a heat conducting pipe body (609), an auxiliary ball (610), an installation slot (613), an installation card plate (614), a connecting strip (615), a support member (616), a cleaning sponge (617), and a filter (618); the outer wall of the heat conducting pipe body (609) is symmetrically fixed with a connecting support rod (608), one end of the connecting support rod (608) is fixedly arranged on the inner wall of the protective supporting pipe body (5), the inner wall of the heat conducting pipe body (609) is equidistantly and movably embedded with an auxiliary ball (610), the outer wall of the heat conducting pipe body (609) is wound with a winding pipe (605), the output pipe (603) and the input pipe (601) both pass through the protective supporting pipe body (5) and extend outwards, the input pipe (601) is connected to the inner wall of the protective supporting pipe body (5). A first control valve (602) is connected to the output pipe (603), and a second control valve (604) is connected to the output pipe (603). The temperature monitoring controller (606) is arranged on the protective supporting pipe body (5), and the temperature monitoring controller (606) is connected to the heating wire (607). The heating wire (607) is wound around the heat-conducting pipe body (609), and a mounting slot (613) is provided on the rotating shaft of the fan (612). The mounting slot (613) is adapted to be engaged with the mounting card plate (614), and the mounting card plate (614) is fixed by screws. A connecting strip (615) is fixed on the mounting card plate (614), and a support member (616) is equidistantly provided at one end of the connecting strip (615). A cleaning soft cotton strip (617) is connected to the support member (616), and the filter screen (618) is fixedly connected to the connecting body (611) by screws.

3. The automatic temperature control system for a rotary kiln according to claim 2, characterized in that: Two connecting bodies (611) are symmetrically arranged on the bottom side of the protective supporting tube body (5).

4. The automatic temperature control system for a rotary kiln according to claim 2, characterized in that: The winding tube (605) is connected to an auxiliary accessory (7).

5. The automatic temperature control system for a rotary kiln according to claim 2, characterized in that: Two connectors (611) are symmetrically arranged on the bottom side of the protective supporting tube (5), wherein a fan (612) in one connector (611) sucks air, and a fan (612) in the other connector (611) discharges air, and the two form a circulation cycle.

6. The automatic temperature control system for a rotary kiln according to claim 1, characterized in that: The loading hemispherical shells (705) and the fixed hemispherical shells (703) are provided in the same number of groups, and the two are connected to form a spherical shell.

7. The automatic temperature control system for a rotary kiln according to claim 1, characterized in that: The heat-insulating sleeve (709) and the frustum (708) are arranged in corresponding positions and in the same number of groups, and the large end of the frustum (708) is connected to the opening of the auxiliary through hole (707), and the extension groove in the frustum (708) is connected to the auxiliary through hole (707).

8. The automatic temperature control system for a rotary kiln according to claim 1, characterized in that: The frustum (708) and the auxiliary through holes (707) are arranged at corresponding positions and have the same number of groups.

9. A method for using pulverized coal in an automatic temperature control system for a rotary kiln according to any one of claims 1 to 8, characterized in that: The method for the amount of pulverized coal is: By cooperating with the auxiliary temperature control mechanism (6) and the auxiliary accessories (7), the temperature inside the kiln body (1) can be assisted in controlling, and while ensuring that the temperature meets the working requirements, the excess heat can also be recycled and utilized; by the temperature monitoring controller (606), the heating wire (607) and the symmetrically arranged fans (612) in the auxiliary temperature control mechanism (6), timely auxiliary control of high temperature can be performed, and by setting the winding tube (605) and the heat conducting tube body (609), the temperature can be regulated while avoiding heat waste, and the auxiliary temperature control mechanism (6) and the auxiliary accessories (7) can also cooperate to achieve good heat preservation, reduce the use of coal powder, and the amount of coal powder used is used according to the actual temperature control situation.

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