CN209778734U - Automatic temperature control system for hearth - Google Patents
Automatic temperature control system for hearth Download PDFInfo
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- CN209778734U CN209778734U CN201920372138.2U CN201920372138U CN209778734U CN 209778734 U CN209778734 U CN 209778734U CN 201920372138 U CN201920372138 U CN 201920372138U CN 209778734 U CN209778734 U CN 209778734U
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- air valve
- temperature
- pyrolysis
- rotary kiln
- combustion
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Abstract
The utility model relates to a furnace automatic temperature control system, including temperature sensor, pyrolysis pneumatic valve, combustion air valve, switch board, temperature sensor adorn in the inside temperature information transfer of rotary kiln of receiving of rotary kiln gives the switch board, by the flow size of switch board control pyrolysis pneumatic valve, combustion air valve to the heating temperature of each section of control rotary kiln enables the rotary kiln and operates in the temperature of settlement.
Description
Technical Field
The utility model relates to a pyrolysis equipment field especially relates to a carry out automatic temperature control's device to rotary kiln furnace.
Background
The biomass pyrolysis carbonization processing is to send biomass into a pyrolysis furnace for heating, then collect pyrolysis gas and byproducts thereof for recycling, and when the pyrolysis carbonization technology is adopted, heating needs to be carried out in a segmented mode, the problem of temperature control is involved, generally, manual adjustment of a heating device consumes manpower and energy, and potential safety hazards also exist.
Disclosure of Invention
The utility model designs a furnace automatic temperature control system aiming at the problems of the existing equipment and devices, which is used for controlling the internal temperature of the rotary kiln 1 and comprises a temperature sensor 3, a pyrolysis air valve 4, a combustion-supporting air valve 5 and a control cabinet 2; the induction parts of the temperature sensor 3 are respectively arranged on the inner wall of the rotary kiln 1 close to the feeding port and the inner wall of the rotary kiln close to the discharging port, the induction temperature information is wirelessly transmitted to the control cabinet 2, and the control cabinet 2 controls the pyrolysis air valve 4 and the combustion-supporting air valve 5; the gas outlet ends of the pyrolysis gas valve 4 and the combustion-supporting air valve 5 are connected to a burner 6 to heat the rotary kiln 1; the control cabinet 2 comprises a PLC controller.
Preferably, the pyrolysis air valve 4 and the combustion-supporting air valve 5 are provided with a plurality of pairs, each pair corresponds to one group of burners 6, and the PLC adjusts the airflow ratio of the pyrolysis air valve 4 and the combustion-supporting air valve 5 close to the feeding port to 0.5-0.8 when the temperature of the receiving feeding port is lower than 300 ℃, and the airflow ratio is 0.3-0.5 when the temperature is higher than 400 ℃; and when the temperature of the receiving discharge port is lower than 500 ℃, the PLC adjusts the airflow ratio of the pyrolysis air valve 4 and the combustion-supporting air valve 5 close to the discharge port to be 1-1.5, and when the temperature is higher than 800 ℃, the airflow ratio is 0.8-1.
The utility model discloses in, the inside two sections temperatures of importing and exporting of control rotary kiln 11 are respectively at 300 ℃ -400 ℃, 500 ℃ -800 ℃ prevent that the high temperature from or crossing low excessively, for reaching this standard, detect feedback information transmission for switch board 2 through rotary kiln 1 temperature, condition control heating rotary kiln 1 each section's combustor 6 adjustment its pyrolysis gas through PLC settlement, combustion air's proportion, heighten combustion air proportion when needing the cooling and still be favorable to the circulation of air heat dissipation, and reduce the firepower, make whole equipment operate according to the environmental stabilization who sets for, there is technical progress in this field.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
Example one
As shown in fig. 1, the structure of the present invention includes: the device comprises a temperature sensor 3, a pyrolysis air valve 4, a combustion-supporting air valve 5 and a control cabinet 2; the induction parts of the temperature sensor 3 are respectively arranged on the inner wall of the rotary kiln 1 close to the feeding port and the inner wall of the rotary kiln close to the discharging port, the induction temperature information is wirelessly transmitted to the control cabinet 2, and the control cabinet 2 controls the pyrolysis air valve 4 and the combustion-supporting air valve 5; the gas outlet ends of the pyrolysis gas valve 4 and the combustion-supporting air valve 5 are connected to a burner 6 to heat the rotary kiln 1; the control cabinet 2 comprises a PLC controller.
More specifically, the pyrolysis air valve 4 and the combustion-supporting air valve 5 are provided with six pairs, each pair corresponds to one group of burners 6, and the PLC controller adjusts the airflow ratio of the two pairs of pyrolysis air valves 4 and combustion-supporting air valves 5 close to the feeding port to be 0.5 when the temperature of the receiving feeding port is lower than 300 ℃, and the airflow ratio is 0.3 when the temperature is higher than 400 ℃; and when the temperature of the receiving discharge port is lower than 500 ℃, the PLC adjusts the airflow ratio of the four pairs of pyrolysis air valves 4 and the combustion-supporting air valve 5 close to the discharge port to be 1.5, and when the temperature is higher than 800 ℃, the airflow ratio is 0.8.
The embodiments described herein are only some embodiments of the present invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Claims (2)
1. Furnace automatic temperature control system, its characterized in that: comprises a temperature sensor, a pyrolysis air valve, a combustion-supporting air valve and a control cabinet; the temperature sensor sensing parts are respectively arranged on the inner wall of the rotary kiln near the feeding port and the inner wall of the rotary kiln near the discharging port, sensing temperature information is wirelessly transmitted to the control cabinet, and the control cabinet controls the pyrolysis air valve and the combustion-supporting air valve; the gas outlet ends of the pyrolysis gas valve and the combustion-supporting air valve are connected to a burner to heat the rotary kiln; the control cabinet comprises a PLC controller.
2. The automatic furnace temperature control system according to claim 1, characterized in that: the PLC controller adjusts the airflow ratio of the pyrolysis air valve close to the feeding port to be 0.5-0.8 when the temperature of the receiving feeding port is lower than 300 ℃, and adjusts the airflow ratio of the pyrolysis air valve close to the feeding port to be 0.3-0.5 when the temperature is higher than 400 ℃; and when the temperature of the receiving discharge port is lower than 500 ℃, the PLC adjusts the airflow ratio of the pyrolysis air valve and the combustion-supporting air valve close to the discharge port to be 1-1.5, and when the temperature is higher than 800 ℃, the airflow ratio is 0.8-1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920372138.2U CN209778734U (en) | 2019-03-22 | 2019-03-22 | Automatic temperature control system for hearth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920372138.2U CN209778734U (en) | 2019-03-22 | 2019-03-22 | Automatic temperature control system for hearth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209778734U true CN209778734U (en) | 2019-12-13 |
Family
ID=68799155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920372138.2U Active CN209778734U (en) | 2019-03-22 | 2019-03-22 | Automatic temperature control system for hearth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209778734U (en) |
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2019
- 2019-03-22 CN CN201920372138.2U patent/CN209778734U/en active Active
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