CN212720813U - Rotary kiln system capable of automatically adjusting pressure in furnace - Google Patents
Rotary kiln system capable of automatically adjusting pressure in furnace Download PDFInfo
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- CN212720813U CN212720813U CN202021379152.4U CN202021379152U CN212720813U CN 212720813 U CN212720813 U CN 212720813U CN 202021379152 U CN202021379152 U CN 202021379152U CN 212720813 U CN212720813 U CN 212720813U
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Abstract
The utility model relates to a rotary kiln system capable of automatically adjusting the pressure in a furnace, which comprises a rotary kiln main body, an air inlet pipeline, an exhaust pipeline, a pressure transmitter and a control system; the air inlet pipeline and the exhaust pipeline are both communicated with the rotary kiln body, and an exhaust fan is arranged on the exhaust pipeline; pressure transmitter and exhaust fan all with control system electric connection, pressure transmitter is used for measuring the atmospheric pressure in the rotary kiln main part, and control system is used for controlling the operation of exhaust fan. The utility model relates to a but rotary kiln system of automatically regulated stove internal pressure, through pressure transmitter and the control system who sets up electric connection, make pressure transmitter can the internal pressure value of real-time measurement rotary kiln main part and send for control system, control system controls exhaust fan's rotational speed through contrast pressure value and setting value, and then realizes the interior pressure of automatically regulated stove, it is higher to make the rotary kiln system automatic, more intelligent, but also atmospheric pressure in the accurate control stove, in order to satisfy the processing requirement.
Description
Technical Field
The utility model relates to a rotary kiln technical field specifically is a but rotary kiln system of pressure in automatically regulated stove.
Background
The rotary kiln is used as a common high-temperature treatment and drying device, has a simple structure and stable temperature control, and is widely applied to many production industries such as building materials, metallurgy, chemical industry, environmental protection and the like. In the lithium battery raw material industry, a high-temperature treatment link exists for raw materials of batteries, and various devices are adopted for high-temperature treatment, wherein a roller kiln and a rotary kiln are two types of kilns with the widest applicability. The battery material has special atmosphere requirements in the high-temperature treatment process, for example, the oxygen content of the anode requires a pure oxygen environment, generally higher than 85%, the oxygen content of the cathode graphite requires an oxygen-free environment, and the oxygen content generally requires less than 100ppm (one million parts per million), so that oxygen or nitrogen is required to be introduced into the furnace according to different materials treated in the furnace. The traditional rotary kiln directly introduces oxygen or nitrogen, and the outlet is directly discharged, so that the introduced gas quantity cannot be measured, the gas pressure in the kiln cannot be measured, and the gas inflow or the gas discharge cannot be adjusted in time according to the gas pressure in the kiln, so that the pressure in the kiln can be adjusted.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a but rotary kiln system of automatically regulated stove internal pressure aims at solving among the prior art the unable measurement of atmospheric pressure in the rotary kiln stove, can not be according to atmospheric pressure automatic adjustment air input or displacement in the stove, and then the technical problem of the pressure in the adjustment stove.
In order to achieve the purpose, the utility model provides a rotary kiln system capable of automatically adjusting the pressure in a furnace, which comprises a rotary kiln main body, an air inlet pipeline, an exhaust pipeline, a pressure transmitter and a control system;
the air inlet pipeline and the exhaust pipeline are both communicated with the rotary kiln body, and an exhaust fan is arranged on the exhaust pipeline;
the pressure transmitter and the exhaust fan are electrically connected with the control system, the pressure transmitter is used for measuring the air pressure in the rotary kiln body, and the control system is used for controlling the operation of the exhaust fan.
Preferably, the rotary kiln body comprises a firing device and a cooling device, and a feed end of the cooling device is communicated with a discharge end of the firing device.
Preferably, the number of the air inlet pipelines is at least two, and the sintering device and the cooling device are both communicated with the air inlet pipelines.
Preferably, the air conditioner further comprises a flow meter with a control valve, wherein the flow meter is mounted on the air inlet pipeline.
Preferably, the flow meter is electrically connected to the control system, and the control system can control the flow meter and further control the gas flow.
Preferably, the rotary kiln main body further comprises a discharging device, and the discharging device is communicated with the discharging end of the firing device and the feeding end of the cooling device.
Preferably, the rotary kiln main body further includes a waste recovery tank disposed between the firing device and the exhaust fan.
Preferably, a discharging device for discharging the material in the cooling device is installed at the discharging end of the cooling device.
Preferably, the feeding end of the firing device is provided with a feeder for conveying the material to be treated into the firing device.
Preferably, the control system comprises a digital display regulator and a frequency converter which are electrically connected, wherein the digital display regulator is used for receiving a pressure value measured by the pressure transmitter, comparing the pressure value with a set value, and outputting a current signal to the frequency converter by using a PID control algorithm;
the frequency converter is electrically connected with the exhaust fan, receives the current signal and converts the current signal into corresponding frequency to control the rotating speed of the exhaust fan so as to adjust the exhaust amount, and further adjust the air pressure in the rotary kiln main body.
The utility model relates to a but rotary kiln system of pressure in automatically regulated stove has following beneficial effect:
1. through setting up electric connection's pressure transmitter and control system, make pressure transmitter can real-time measurement rotary kiln main part in the pressure value and send for control system, control system controls exhaust fan's rotational speed through contrast pressure value and setting value, and then realizes automatically regulated stove internal pressure, makes rotary kiln system automatic higher, more intelligent, but also can accurate control stove internal pressure to satisfy the processing requirement.
2. Different set values can be set through the control system to meet different material requirements.
3. The pressure transmitter of the technical scheme directly measures the pressure value in the rotary kiln main body, so that the measurement result is more visual and accurate, and the structure and the circuit are simpler.
4. The rotary kiln main body comprises a firing device and a cooling device, and the material subjected to high-temperature treatment by the firing device can be cooled in the cooling device and then discharged, so that the cooled material can be discharged after the material is treated by the rotary kiln system of the technical scheme.
5. The cooling device is communicated with an air inlet pipeline, and unnecessary chemical reaction of materials in the cooling process can be avoided by introducing corresponding gas.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic view of the structure of a rotary kiln system of the present invention;
fig. 2 is a schematic view of the flow of the automatic regulation of the internal pressure of the rotary kiln system of the utility model.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 1 | Rotary kiln body | 5 | |
| 11 | |
51 | |
| 12 | |
52 | |
| 13 | |
6 | |
| 14 | |
7 | |
| 2 | Air inlet pipeline | 8 | |
| 3 | |
9 | Feeding machine |
| 4 | Pressure transmitter |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
As shown in fig. 1 to 2, a rotary kiln system capable of automatically adjusting the pressure in a furnace includes a rotary kiln body 1, an air inlet pipe 2, an exhaust pipe 3, a pressure transmitter 4 and a control system 5;
the air inlet pipeline 2 and the exhaust pipeline 3 are both communicated with the rotary kiln body 1, and an exhaust fan 6 is arranged on the exhaust pipeline 3;
the pressure transmitter 4 and the exhaust fan 6 are electrically connected to the control system 5, the pressure transmitter 4 is used for measuring the air pressure in the rotary kiln body 1, and the control system 5 is used for controlling the operation of the exhaust fan 6.
Specifically, the air inlet pipeline 2 is communicated with the rotary kiln body 1 from one side of the feed end of the rotary kiln body 1, external air is introduced into the rotary kiln body 1 through the air inlet pipeline 2, and the external air can be pumped into the air inlet pipeline 2 through the pump body; the exhaust pipeline 3 is communicated with the rotary kiln body 1, the exhaust fan 6 is installed on the exhaust pipeline 3, and when the exhaust fan 6 operates, gas in the rotary kiln body 1 can be exhausted through the exhaust pipeline 3. The pressure transmitter 4 is a device for converting pressure into a pneumatic signal or an electric signal for control and remote transmission, and can convert physical pressure parameters of gas, liquid and the like sensed by a load cell sensor into standard electric signals (such as 4-20mA and the like). The pressure transmitter 4 is used for measuring the air pressure in the rotary kiln body 1 and sending the pressure value to the control system 5; the control system 5 receives the pressure value and compares the pressure value with a set value, and controls the rotating speed of the exhaust fan 6 according to the comparison result to adjust the exhaust amount, so as to adjust the air pressure in the rotary kiln body 1. The pressure transmitter 4 is connected with the rotary kiln body 1 and is used for measuring the air pressure in the rotary kiln body 1; the pressure transmitter 4 is electrically connected with the control system 5, and when the pressure transmitter 4 measures the air pressure in the rotary kiln body 1, the pressure value is sent to the control system 5; the control system 5 is electrically connected with the exhaust fan 6, when the control system 5 receives a pressure value sent by the pressure transmitter 4, the pressure value is compared with a set value, and the rotating speed of the exhaust fan 6 is controlled according to a comparison result; for example, when the pressure value is larger than the set value, the rotating speed of the exhaust fan 6 is increased to accelerate the gas discharge speed in the rotary kiln body 1 and reduce the gas content in the rotary kiln body 1, thereby reducing the gas pressure in the rotary kiln body 1.
The rotary kiln is used as a common high-temperature treatment and drying device, has a simple structure and stable temperature control, and is widely applied to many production industries such as building materials, metallurgy, chemical industry, environmental protection and the like. In the lithium battery raw material industry, a high-temperature treatment link exists for raw materials of batteries, and various devices are adopted for high-temperature treatment, wherein a roller kiln and a rotary kiln are two types of kilns with the widest applicability. The battery material has special atmosphere requirements in the high-temperature treatment process, for example, the oxygen content of the anode requires a pure oxygen environment, generally higher than 85%, the oxygen content of the cathode graphite requires an oxygen-free environment, and the oxygen content generally requires less than 100ppm (one million parts per million), so that oxygen or nitrogen is required to be introduced into the furnace according to different materials treated in the furnace. The traditional rotary kiln directly introduces oxygen or nitrogen, and the outlet is directly discharged, so that the introduced gas quantity cannot be measured, the gas pressure in the kiln cannot be measured, and the gas inflow or the gas discharge cannot be adjusted in time according to the gas pressure in the kiln, so that the pressure in the kiln can be adjusted. And this technical scheme, through setting up electric connection's pressure transmitter 4 and control system 5, make pressure transmitter 4 can real-time measurement rotary kiln main part 1 in the pressure value and send for control system 5, control system 5 controls exhaust fan 6's rotational speed through contrast pressure value and setting value, and then realizes automatically regulated stove internal pressure, makes the rotary kiln system automatic higher, more intelligent, but also can accurate control stove internal pressure, in order to satisfy the processing requirement. When different materials are processed, the pressure value requirements in the furnace can be different, so that different set values can be set through the control system 5 to meet different material requirements. Compare in measuring air input and discharge capacity or the pressure value of measuring air inlet and gas vent, pressure transmitter 4 direct measurement rotary kiln main part 1 of this technical scheme in the pressure value, make measuring result more directly perceived, accurate, and structure and circuit are simpler.
Further, the rotary kiln body 1 includes a burning device 11 and a cooling device 12, and a feeding end of the cooling device 12 is communicated with a discharging end of the burning device 11.
The firing device 11 is mainly used for high-temperature treatment of materials and can be a furnace body wound with heating wires; the cooling device 12 is mainly used for cooling the material after high-temperature treatment, and may be a furnace body with a better heat dissipation effect or a cooling cylinder which is cooled by adopting an external water spraying manner. The feeding end of the cooling device 12 is communicated with the discharging end of the sintering device 11, and the material enters the cooling device 12 through the discharging end of the sintering device 11 and the feeding end of the cooling device 12 after being subjected to high-temperature treatment in the sintering device 11. Specifically, the pressure transmitter 4 mainly measures the pressure value inside the firing device 11. The rotary kiln main body 1 comprises a firing device 11 and a cooling device 12, and the material subjected to high-temperature treatment by the firing device 11 can be cooled in the cooling device 12 and then discharged, so that the cooled material can be discharged after the material is treated by the rotary kiln system of the technical scheme.
Further, the number of the intake ducts 2 is at least two, and the intake ducts 2 communicate with each other in both the firing device 11 and the cooling device 12.
The number of the air inlet pipes 2 is at least two, and if the number of the air inlet pipes is two, the two air inlet pipes 2 are respectively communicated with the sintering device and the cooling device. The gas inlet pipeline 2 is communicated with the sintering device 11 and is used for introducing external gas into the sintering device 11; and the air inlet pipeline 2 is communicated with the cooling device 12 and is used for introducing external air into the cooling device 12. As mentioned above, the material has special requirements for atmosphere during high temperature treatment, so that the corresponding gas needs to be introduced into the sintering device 11, and the gas inlet pipeline 2 is arranged to be communicated with the sintering device 11; when the material is cooled, in order to avoid the occurrence of related chemical reactions, for example, when the iron powder is cooled in the cooling device 12, in order to avoid oxidation, nitrogen gas needs to be introduced into the cooling device 12, so that the gas inlet pipe 2 is also arranged to be communicated with the cooling device 12. In this embodiment, the rotary kiln body 1 includes the burning device 11 and the cooling device 12 which are communicated with each other, so that the rotary kiln body 1 has a large length or a large volume, and the burning device 11 and the cooling device 12 are both communicated with the gas inlet duct 2 in order to better introduce gas into the rotary kiln body 1. Through setting up two at least air inlets, can let in gas in rotary kiln main part 1 fast, and can make the atmospheric pressure in rotary kiln main part 1 relatively balanced. The cooling device 12 is communicated with an air inlet pipeline 2, and unnecessary chemical reaction of materials in the cooling process can be avoided by introducing corresponding gas.
Further, a flow meter 7 with a control valve is included, and the flow meter 7 is mounted on the intake duct 2.
A flow meter 7 with a control valve is used to measure and control the flow in the inlet line. The flow meter is provided with a control valve, so that the flow meter 7 can measure the flow of the gas introduced into the gas inlet pipeline 2 and can adjust and control the flow of the gas introduced. As described above, the number of the intake ducts 2 is at least two, and therefore, each intake duct 2 is provided with the flow meter 7. All install flowmeter 7 on admission line 2, can conveniently detect respectively and control the gas flow that two at least air inlets let in when using, it is more practical.
Further, the flow meter 7 is electrically connected to the control system 5, and the control system 5 can control the flow meter 7 and thus the gas flow rate.
The flowmeter 7 can feed back the measured gas flow value to the control system 5, so that the control system 5 can not only collect the pressure value in the rotary kiln body 1 detected by the pressure transmitter 4, but also collect the gas flow value introduced into the rotary kiln body 1 from the gas inlet pipeline 2, so that the following gas pressure change condition in the rotary kiln body 1 can be pre-judged by combining the three values, and corresponding preparation can be made in advance, such as controlling the gas entering the rotary kiln body 1 and adjusting the rotating speed of the exhaust fan 6. The control system 5 can also control the flow meter 7 to control the flow of gas, when the air pressure in the rotary kiln main body 1 is larger, the rotating speed of the exhaust fan 6 can be increased, the flow of gas introduced can be reduced, and the air pressure in the rotary kiln main body 1 can be accelerated and balanced by adjusting the air pressure and the rotating speed simultaneously.
Further, the rotary kiln body 1 further includes a discharging device 13, and the discharging device 13 communicates the discharging end of the firing device 11 and the feeding end of the cooling device 12.
The blanking device 13 is used for discharging the material subjected to high-temperature treatment in the sintering device 11 into the cooling device 12. As mentioned above, the material after high temperature treatment needs to be discharged from the burning device 11 to the cooling device 12 for cooling, and the discharging of the material depends on the discharging device 13 disposed between the burning device 11 and the cooling device 12. The discharging device 13 mainly comprises a funnel and a pipeline, the discharging end of the sintering device 11 is communicated with the funnel, and the pipeline is communicated with the outlet at the lower end of the funnel and the feeding end of the cooling device 12. During the operation of the rotary kiln system, the burning device 11 as a furnace body needs to rotate continuously, so that the material turns over in the burning device 11 and moves to one side of the discharging device 13. When the firing device 11 rotates, the discharging end of the firing device is communicated with the blanking device 13, but the blanking device 13 does not rotate along with the firing device. The discharging device 13 is arranged to facilitate the discharging of the material from the sintering device 11 to the cooling device 12.
Further, the rotary kiln body 1 further includes a waste recovery tank 14, and the waste recovery tank 14 is provided between the firing device 11 and the exhaust fan 6.
The waste recovery tank 14 is used for collecting and storing dust waste which is drawn out from the burning device 11 when the exhaust fan 6 draws air. In material high temperature treatment, the waste gas of production is discharged through exhaust duct 3 and exhaust fan 6, and can also produce a small amount of solid waste when the material burns, sets up garbage collection tank 14 between burning device 11 and exhaust fan 6, and solid waste will be along with the discharge of waste gas and store in getting into garbage collection tank 14 to make things convenient for the staff to carry out subsequent processing.
Further, a discharge device 8 for discharging the material in the cooling device 12 is attached to a discharge end of the cooling device 12.
After the cooling device 12 cools down, the material needs to be discharged and conveyed to the next station, so that the discharging device 8 is installed at the discharging end of the cooling device 12, and the material is discharged from the cooling device 12 through the discharging device 8. As mentioned above, the cooling device 12 may be a furnace body with better heat dissipation effect, or a cooling cylinder that is cooled by external water spraying, and in order to increase the cooling speed, the cooling cylinder is generally set as a rotary cooling cylinder, and the material is continuously turned over in the cooling device 12 to increase the cooling speed; the material moves to one side where the discharging device 8 is located in the overturning process, and is finally discharged through the discharging device 8. If the cooling device 12 is a rotary cooling cylinder, when the cooling device 12 rotates, the discharge end thereof is communicated with the discharge device 8 but the discharge device 8 does not rotate therewith. Therefore, the discharging device 8 is arranged to facilitate the stable discharge of the material without affecting the operation of the cooling device 12.
Further, the feeding end of the burning device 11 is provided with a feeder 9 for feeding the material to be treated into the burning device 11.
The material feeder 9 conveys the material to be treated into the burning device 11, and specifically, the material feeder 9 may include a bin and a conveying device, the material to be treated is discharged from the bin into the conveying device, and then the conveying device conveys the material to be treated into the burning device 11, and the conveying device may be a conveying belt or a vibrating pipeline (the material in the vibrating pipeline is conveyed into the burning device 11 by vibration). The setting mode of feeder 9 can be diversified, and it is convenient firstly to add the material of treating to set up feeder 9 to the device 11 of burning for convenience, and secondly can be through intelligent control feeder 9 (for example the speed of controlling conveyor belt, the vibration frequency of vibration pipeline) automatic control feeding's speed.
Further, the control system 5 includes a digital display regulator 51 and a frequency converter 52 electrically connected to each other, where the digital display regulator 51 is configured to receive a pressure value measured by the pressure transmitter 4, compare the pressure value with a set value, and output a current signal to the frequency converter 52 by using a PID control algorithm;
the frequency converter 52 is electrically connected to the exhaust fan 6, and the frequency converter 52 receives a current signal and converts the current signal into a corresponding frequency to control the rotation speed of the exhaust fan 6 to adjust the exhaust amount, thereby adjusting the air pressure in the rotary kiln body 1.
The digital display regulator 51 is electrically connected with the pressure transmitter 4, the pressure transmitter 4 detects the pressure in the rotary kiln main body 1 in real time and converts the pressure value into a 4-20mA signal (the signal current of general instruments is 4-20mA, the minimum current is 4mA, the maximum current is 20 mA; the 4-20mA current loop uses 4mA to represent a zero signal, 20mA to represent the full scale of the signal, and the signal lower than 4mA and higher than 20mA is used for alarming various faults) and transmits the signal to the digital display regulator; the digital display regulator 51 converts the received analog quantity signal into a pressure value, and dynamically outputs a 4-20mA signal to the frequency converter 52 by utilizing a PID control algorithm according to the deviation between a set value and the pressure value. Wherein, PID is: the abbreviations of proportionality, Integral and Differential are, as the name implies, a PID control algorithm is a control algorithm combining three links of proportion, Integral and Differential into a whole, the essence of the PID control algorithm is to operate according to the function relationship of proportion, Integral and Differential according to the input deviation value, and the operation result is used to control the output. The frequency converter 52 receives the 4-20mA signal from the digital display regulator 51 and converts the signal into a corresponding frequency (such as 0-50Hz) to control the rotation speed of the exhaust fan 6, so as to adjust the exhaust air volume and further adjust the air pressure in the rotary kiln body 1. When the rotary kiln body 1 is processing different materials, the air pressure requirement in the rotary kiln body 1 may be different, and thus the required value can be set by the digital display adjustment instrument 51. The control system 5 comprises a digital display regulator 51 and a frequency converter 52, and the stability of the control system 5 can be improved by converting measured values and electric signals and utilizing electric signal transmission.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. A rotary kiln system capable of automatically adjusting the pressure in a furnace is characterized in that: the rotary kiln comprises a rotary kiln body, an air inlet pipeline, an exhaust pipeline, a pressure transmitter and a control system;
the air inlet pipeline and the exhaust pipeline are both communicated with the rotary kiln body, and an exhaust fan is arranged on the exhaust pipeline;
the pressure transmitter and the exhaust fan are electrically connected with the control system, the pressure transmitter is used for measuring the air pressure in the rotary kiln body, and the control system is used for controlling the operation of the exhaust fan.
2. The rotary kiln system capable of automatically adjusting the pressure in the kiln as claimed in claim 1, wherein: the rotary kiln main body comprises a firing device and a cooling device, and the feeding end of the cooling device is communicated with the discharging end of the firing device.
3. The rotary kiln system capable of automatically adjusting the pressure in the kiln as claimed in claim 2, wherein: the number of the air inlet pipelines is at least two, and the sintering device and the cooling device are both communicated with the air inlet pipelines.
4. The rotary kiln system capable of automatically adjusting the pressure in the kiln as claimed in claim 3, wherein: the air inlet pipeline is characterized by further comprising a flow meter with a control valve, and the flow meter is mounted on the air inlet pipeline.
5. The rotary kiln system capable of automatically adjusting the pressure in the kiln as claimed in claim 4, wherein: the flowmeter is electrically connected with the control system, and the control system can control the flowmeter so as to control the gas flow.
6. The rotary kiln system capable of automatically adjusting the pressure in the kiln as claimed in claim 2, wherein: the rotary kiln main body further comprises a discharging device, and the discharging device is communicated with the discharging end of the firing device and the feeding end of the cooling device.
7. The rotary kiln system capable of automatically adjusting the pressure in the kiln as claimed in claim 2, wherein: the rotary kiln main body further comprises a waste recovery tank, and the waste recovery tank is arranged between the firing device and the exhaust fan.
8. The rotary kiln system capable of automatically adjusting the pressure in the kiln as claimed in claim 2, wherein: and a discharging device used for discharging the materials in the cooling device is installed at the discharging end of the cooling device.
9. The rotary kiln system capable of automatically adjusting the pressure in the kiln as claimed in claim 2, wherein: and a feeding machine for conveying the material to be treated into the sintering device is arranged at the feeding end of the sintering device.
10. The rotary kiln system capable of automatically adjusting the pressure in the kiln as claimed in claim 1, wherein: the control system comprises a digital display regulator and a frequency converter which are electrically connected, wherein the digital display regulator is used for receiving a pressure value measured by the pressure transmitter, comparing the pressure value with a set value and outputting a current signal to the frequency converter by utilizing a PID control algorithm;
the frequency converter is electrically connected with the exhaust fan, receives the current signal and converts the current signal into corresponding frequency to control the rotating speed of the exhaust fan so as to adjust the exhaust amount, and further adjust the air pressure in the rotary kiln main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021379152.4U CN212720813U (en) | 2020-07-14 | 2020-07-14 | Rotary kiln system capable of automatically adjusting pressure in furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021379152.4U CN212720813U (en) | 2020-07-14 | 2020-07-14 | Rotary kiln system capable of automatically adjusting pressure in furnace |
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| CN212720813U true CN212720813U (en) | 2021-03-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116294578A (en) * | 2023-05-22 | 2023-06-23 | 天津巴莫科技有限责任公司 | Roller kiln and gas control device thereof |
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2020
- 2020-07-14 CN CN202021379152.4U patent/CN212720813U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116294578A (en) * | 2023-05-22 | 2023-06-23 | 天津巴莫科技有限责任公司 | Roller kiln and gas control device thereof |
| CN116294578B (en) * | 2023-05-22 | 2023-08-08 | 天津巴莫科技有限责任公司 | Roller kiln and gas control device thereof |
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