CN214148787U - Safety protection device for combustion system of rotary kiln - Google Patents
Safety protection device for combustion system of rotary kiln Download PDFInfo
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- CN214148787U CN214148787U CN202120136181.6U CN202120136181U CN214148787U CN 214148787 U CN214148787 U CN 214148787U CN 202120136181 U CN202120136181 U CN 202120136181U CN 214148787 U CN214148787 U CN 214148787U
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Abstract
The utility model provides a rotary kiln combustion system safety arrangement, includes the kiln body, be equipped with the air piping monitor on the air source pipe of the kiln body, be equipped with the gas piping monitor on the gas source pipe of the kiln body, the main nozzle department of the kiln body is equipped with the flame monitor, and internal temperature monitor and the kiln pressure monitor of being equipped with of kiln, the inlet end of the kiln body is equipped with gas leakage detector, air piping monitor, gas piping monitor, flame monitor, temperature monitor, kiln pressure monitor and gas leakage detector all are connected with the treater electricity, be equipped with the fuel valve on the gas source pipe, the treater is connected with the fuel valve electricity. The utility model provides a potential safety hazard problem in the current production, flame state, gas, air, temperature in the kiln, kiln internal gas pressure when can burning rotary kiln combustion system carry out real-time effective monitoring, can independently cut off the gas when detecting unusually and prevent that the accident from further taking place, accomplish the safety guarantee.
Description
Technical Field
The utility model relates to a rotary kiln especially relates to a rotary kiln combustion system safety arrangement.
Background
The rotary kiln is a common large-scale long-cylinder rotary calcining kiln in industrial production, and the high temperature is generated by burning common gas fuels such as coal gas, natural gas, petroleum gas and the like as fuel gas. Because the rotary kiln is thin and long, the interior of the kiln is relatively closed, if the monitoring is not in place and a safety protection device is not provided in the combustion process, the combustible gas with high heat value is easy to cause explosion accidents in the relatively closed kiln.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that, overcome the above-mentioned defect that prior art exists, provide one kind and can monitor effectively in real time, avoid the rotary kiln combustion system safety arrangement of potential safety hazard.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a rotary kiln combustion system safety arrangement, includes the kiln body, be equipped with the air piping monitor on the air source pipe of the kiln body, be equipped with the gas piping monitor on the gas source pipe of the kiln body, the main nozzle department of the kiln body is equipped with the flame monitor, and internal temperature monitor and the kiln pressure monitor of being equipped with of kiln, the inlet end of the kiln body is equipped with gas leakage detector, air piping monitor, gas piping monitor, flame monitor, temperature monitor, kiln pressure monitor and gas leakage detector all are connected with the treater electricity, be equipped with the fuel valve on the gas source pipe, the treater is connected with the fuel valve electricity.
Further, the flame monitor is a flame monitor based on visible light, infrared and ultraviolet detection or a flame monitor based on flame ion detection; the flame monitor collects that the flame of the main burner of the combustion system is in a combustion or extinguishing state in real time and sends a 'flame existence' or 'flame extinguishing' signal to the processor.
Further, the temperature monitor is based on infrared temperature measurement, a thermocouple or a thermal resistance sensor; the temperature monitor is used for acquiring the temperature of necessary positions in the kiln, such as flame temperature, kiln head temperature, kiln tail temperature and the like in real time and transmitting signals to the processor.
Further, the air pipeline monitor consists of a pressure transmitter and a gas flowmeter; the air pipeline monitor is used for monitoring the pressure and the flow of the air pipeline in real time and transmitting signals to the processor; the gas pipeline monitor consists of a pressure transmitter and a gas flowmeter; the gas pipeline monitor is used for monitoring the pressure and the flow of a gas pipeline in real time and transmitting signals to the processor.
Further, the gas leakage detector is an instrument capable of continuously detecting the concentration of combustible gas in the working environment through a gas sensor; the gas leakage detector is used for monitoring the gas concentration in the gas pipeline and the air in the gas station area in real time and transmitting signals to the processor.
Further, the kiln pressure monitor is composed of a pressure transmitter; the kiln pressure monitor is used for monitoring the air pressure at necessary positions in the kiln, such as the air pressure at the head of the kiln, the air pressure at the tail of the kiln and the like in real time and transmitting signals to the processor.
The processor is used for processing the signals transmitted by the monitors, judging whether the combustion state is abnormal or not, simultaneously transmitting the signals to the memory for recording, and outputting a cutting signal to the fuel valve under any condition. Such as: when a flame monitor monitors that the flame is in a flameout state and transmits a flame flameout signal, or a temperature monitor monitors that the temperature of necessary positions in a kiln, such as the flame temperature, the kiln head temperature, the kiln tail temperature and the like, exceeds a set upper limit value, or an air pipeline monitor monitors that the pressure and the flow of an air pipeline exceed a set upper limit value, or a gas pipeline monitor monitors that the pressure and the flow of the air pipeline exceed a set upper limit value, or a gas leakage detector monitors that the concentration of gas in the air of a gas pipeline and a gas station area exceeds a set upper limit concentration; or the kiln pressure monitor monitors that the air pressure at the necessary positions in the kiln, such as the kiln head, the kiln tail air pressure and the like, exceeds the set upper limit value; the fuel valve receives the cut-off signal to cut off the gas immediately and send out an alarm.
The utility model provides a potential safety hazard problem in the current production, flame state, gas, air, temperature in the kiln, kiln internal gas pressure when can burning rotary kiln combustion system carry out real-time effective monitoring, can independently cut off the gas when detecting unusually and prevent that the accident from further taking place, accomplish the safety guarantee.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic diagram of a control principle according to an embodiment of the present invention.
In the figure: 1. the device comprises a kiln body, 2, an air source pipe, 3, a gas source pipe, 4, an air pipeline monitor, 5, a flame monitor, 6, a temperature monitor, 7, a kiln pressure monitor, 8, a gas leakage detector, 9, a gas pipeline monitor, 10, a fuel valve, 11 and a main burner.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-2, the present embodiment includes a kiln body 1, an air pipeline monitor 4 is disposed on an air source pipe 2 of the kiln body 1, a gas pipeline monitor 9 is disposed on a gas source pipe 3 of the kiln body 1, a flame monitor 6 is disposed at a main burner 11 of the kiln body 1, a temperature monitor 6 and a kiln pressure monitor 7 are disposed in the kiln body 1, a gas leakage detector 8 is disposed at an air inlet end of the kiln body 1, the air pipeline monitor 4, the gas pipeline monitor 9, the flame monitor 5, the temperature monitor 6, the kiln pressure monitor 7 and the gas leakage detector 8 are all electrically connected to a processor, a fuel valve 10 is disposed on the gas source pipe 3, and the processor is electrically connected to the fuel valve 10.
The utility model discloses at the during operation, the air passes through air source pipe 2 and gets into, the gas passes through 3 entering of gas source pipe, the air is sent into main nozzle 11 with the gas and is mixed the back and burn blowout flame and produce the high temperature flue gas, tail gas treatment (tail gas treatment is mainly taken out the flue gas from the kiln tail in with the kiln by outside draught fan, the high temperature flue gas gets into water dust scrubber, spray column, tail gas environmental protection equipment such as electrostatic precipitator gets rid of the dust in the tail gas, harmful gas.) with the outside suction of flue gas and make flame lengthen in the kiln. The material enters from the feeding end of the kiln body 1, and after high-temperature presintering with flame, the material is reacted and flows out from the discharging end.
The flame monitor 5 is aligned with the flame sprayed by the main burner 11, the flame state is monitored in real time, signals are transmitted to the processor, when the flame is suddenly switched from a combustion state to an extinguishing state, the processor outputs a cut-off signal to the fuel valve 10, the fuel valve 10 cuts off fuel gas and gives an alarm, the fuel gas is prevented from being continuously input into the high-temperature kiln, and an air source sweeps the interior of the kiln to dilute the concentration of the fuel gas;
the temperature monitor 6 monitors the temperature of necessary positions in the kiln such as flame temperature, kiln head temperature, kiln tail temperature and the like in real time and transmits signals to the processor, when the temperature of the necessary positions in the kiln such as the flame temperature, the kiln head temperature, the kiln tail temperature and the like exceeds the set upper limit value of safe temperature, the processor outputs cut-off signals to the fuel valve 10, the fuel valve 10 cuts off fuel gas and gives an alarm, and equipment damage and safety accidents caused by overhigh temperature are prevented;
the air pipeline monitor 4 monitors the pressure and the flow of the air source pipe 2 in real time and transmits signals to the processor, when the pressure and the flow of the air pipeline exceed the set upper limit values of the pressure and the flow, the processor outputs a cut-off signal to the fuel valve 10, the fuel valve 10 cuts off the fuel gas and gives an alarm, and the unstable combustion conditions such as flame flicker caused by overhigh air pressure and flow are prevented;
the gas pipeline monitor 9 monitors the pressure and the flow of the gas source pipe 3 in real time and transmits signals to the processor, when the pressure and the flow of the gas pipeline exceed the set upper limit values of the pressure and the flow, the processor outputs a cut-off signal to the fuel valve 10, the fuel valve 10 cuts off the gas and gives an alarm, and the unstable combustion conditions such as insufficient flame combustion and the like caused by overhigh pressure and flow of the gas are prevented;
the gas leakage detector 8 monitors the gas concentration in the gas source pipe 3 and the air in the gas station area in real time and transmits signals to the processor, when the gas concentration in the air exceeds the set upper limit concentration, the processor outputs a cut-off signal to the fuel valve 10, the fuel valve 10 cuts off the gas and gives an alarm, and the gas leakage in the gas source or the pipeline is prevented from suffering from hidden danger of explosion caused by open fire;
the kiln pressure monitor 7 monitors the air pressure at the necessary positions in the kiln, such as the kiln head air pressure and the kiln tail air pressure, in real time, and transmits signals to the processor, when the air pressure at the necessary positions in the kiln, such as the kiln head air pressure and the kiln tail air pressure, exceeds the set safe air pressure upper limit value, the processor outputs a cut-off signal to the fuel valve 10, the fuel valve 10 cuts off fuel gas and gives an alarm, and safety accidents caused by reverse ejection of flame from the discharge end and the main burner end 11 due to overhigh air pressure in the kiln are prevented.
Various modifications and variations of the present invention may be made by those skilled in the art, and they are within the scope of the present invention provided they are within the scope of the claims and their equivalents.
What is not described in detail in the specification is prior art that is well known to those skilled in the art.
Claims (5)
1. The utility model provides a rotary kiln combustion system safety arrangement, includes the kiln body, its characterized in that: the kiln comprises a kiln body, and is characterized in that an air pipeline monitor is arranged on an air source pipe of the kiln body, a gas pipeline monitor is arranged on a gas source pipe of the kiln body, a flame monitor is arranged at a main burner of the kiln body, a temperature monitor and a kiln pressure monitor are arranged in the kiln body, a gas leakage detector is arranged at an air inlet end of the kiln body, the air pipeline monitor, the gas pipeline monitor, the flame monitor, the temperature monitor, the kiln pressure monitor and the gas leakage detector are all electrically connected with a processor, a fuel valve is arranged on the gas source pipe, and the processor is electrically connected with the fuel valve.
2. The safety protection device for the combustion system of the rotary kiln as claimed in claim 1, wherein: the flame monitor is based on visible light, infrared ray and ultraviolet ray detection or flame monitor based on flame ion detection.
3. The safety protection device for the combustion system of the rotary kiln as claimed in claim 1, wherein: the temperature monitor is a thermocouple or a thermal resistance sensor based on infrared temperature measurement.
4. The safety protection device for the combustion system of the rotary kiln according to any one of claims 1 to 3, wherein: the air pipeline monitor and the gas pipeline monitor are composed of a pressure transmitter and a gas flowmeter.
5. The safety protection device for the combustion system of the rotary kiln according to any one of claims 1 to 3, wherein: the kiln pressure monitor is a pressure transmitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120136181.6U CN214148787U (en) | 2021-01-19 | 2021-01-19 | Safety protection device for combustion system of rotary kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120136181.6U CN214148787U (en) | 2021-01-19 | 2021-01-19 | Safety protection device for combustion system of rotary kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214148787U true CN214148787U (en) | 2021-09-07 |
Family
ID=77548372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120136181.6U Active CN214148787U (en) | 2021-01-19 | 2021-01-19 | Safety protection device for combustion system of rotary kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214148787U (en) |
-
2021
- 2021-01-19 CN CN202120136181.6U patent/CN214148787U/en active Active
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