CN212954995U - Material level control system with material sealing priority - Google Patents
Material level control system with material sealing priority Download PDFInfo
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- CN212954995U CN212954995U CN202020102696.XU CN202020102696U CN212954995U CN 212954995 U CN212954995 U CN 212954995U CN 202020102696 U CN202020102696 U CN 202020102696U CN 212954995 U CN212954995 U CN 212954995U
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- level switch
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Abstract
The utility model belongs to the technical field of the rubbish pyrolysis, concretely relates to material seals preferential material level control system. The device comprises a gas-solid separator inlet (1), a gas-solid separator (2), a dipleg (3), a blanking controller (4), a pyrolysis reactor (5), a material level switch A (6), a material level switch B (7), a material level switch C (8), a material level switch D (9) and a garbage feeding mechanism (10). Adopt this kind of material to seal preferential material level control, can guarantee that high temperature heat carrier forms the material and seals the effect in the dipleg, the interdiffusion between isolated flue gas and the pyrolysis gas mixes, prevents the emergence of explosion or detonation accident, can in time provide the heat for the rubbish pyrolysis in the reactor again.
Description
Technical Field
The utility model belongs to the technical field of the rubbish pyrolysis, concretely relates to material seals preferential material level control system.
Background
In the rubbish pyrolysis trade, the high temperature flue gas that comes out from the solid heat carrier stove carries the solid heat carrier and gets into the rotary drum of gas-solid separator from the pipeline, the high temperature flue gas up walks to go to the gas cleaning system through the exhanst gas outlet pipeline, the solid heat carrier down falls into the dipleg, and form certain material level height in the dipleg, install the position of difference and install the material level switch and be used for detecting the height of high temperature heat carrier in the dipleg on the dipleg, the material level of high temperature heat carrier in the dipleg is controlled through the unloading controller, when the material level is when high partially, then the unloading controller can increase the control of unloading and reduce the material level, when the material level is when low partially, then the unloading controller can reduce the unloading volume and rise the material level.
When the material level of the material leg is in a normal range, the blanking amount of the blanking controller is controlled by the required reaction final temperature of the pyrolysis reactor. When the pyrolysis reactor works, broken garbage enters the reactor through the garbage feeding mechanism, a high-temperature heat carrier in the dipleg falls into the garbage pyrolysis reactor through the blanking controller, and after the garbage and the high-temperature heat carrier are stirred, mixed and transferred in the reactor, the garbage is pyrolyzed into gases such as carbon monoxide, hydrogen, methane and the like and a small amount of tar.
An important condition for garbage pyrolysis is to isolate oxygen so as to prevent the oxygen and combustible pyrolysis gas from burning or exploding, and the anaerobic pyrolysis of garbage is also a necessary condition for avoiding the generation of dioxin. The material level height of the high-temperature heat carrier in the dipleg is of great importance, the pyrolysis efficiency is influenced, and the high-temperature heat carrier is also an important condition for the safe operation of the system. There is therefore a need to develop a capsule-first level control system to solve the above problems.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a material seals preferential material level control system to the safe operation of the efficiency of guarantee pyrolysis and system.
In order to realize the purpose, the utility model adopts the technical scheme that: the material level control system comprises an inlet of a gas-solid separator, the gas-solid separator, a material leg, a blanking controller, a pyrolysis reactor, a material level switch A, a material level switch B, a material level switch C, a material level switch D and a garbage feeding mechanism.
High-temperature flue gas from the solid heat carrier furnace carries a solid heat carrier to enter a rotary cylinder of the gas-solid separator from an inlet of the gas-solid separator, the high-temperature flue gas in the high-temperature flue gas upwards passes through a flue gas outlet pipeline to a flue gas purification system, and the solid heat carrier falls downwards into a dipleg to form a material level height in the dipleg; when the pyrolysis reactor works, broken garbage enters the reactor through the garbage feeding mechanism, a high-temperature heat carrier in the dipleg falls into the pyrolysis reactor through the blanking controller, and the garbage and the high-temperature heat carrier are stirred, mixed and transferred in the pyrolysis reactor to complete garbage pyrolysis; a material level switch A, a material level switch B, a material level switch C and a material level switch D are arranged at different positions on the dipleg, and the height of the high-temperature heat carrier in the dipleg is detected through the material level switches; the material level in the dipleg is kept at a certain height to prevent high-temperature flue gas from flowing downwards into the pyrolysis reactor, and simultaneously prevent combustible pyrolysis gas in the pyrolysis reactor from entering a gas-solid separator; the material level of the high-temperature heat carrier in the material leg is controlled by a blanking controller, and when the material level is higher than the set height of the system, the blanking controller increases the blanking amount to reduce the material level; when the material level is lower than the set height of the system, the blanking controller reduces the blanking amount to raise the material level; when the material level is within the normal height range set by the system, the material feeding amount of the material feeding controller is controlled by the required reaction final temperature of the pyrolysis reactor.
Further, as for the material level control system with a material seal priority, the material level switch a, the material level switch B, the material level switch C and the material level switch D respectively correspond to high, low and low positions.
Further, when the high signal of the material level switch A lasts for N1 seconds, the control system sends out a pulse command to completely switch off the blanking controller and sends out a system interlocking stop signal;
when the high signal of the material level switch A lasts for N2 seconds, the control system sends out a pulse command to automatically turn the blanking controller to a large blanking amount M1; n1> N2.
Further, when the high signal of the material level switch B lasts for N3 seconds, the control system sends a pulse command to open the blanking controller by a blanking amount to M2;
when the high signal of the material level switch B lasts for N4 seconds, the control system sends a pulse command to open the blanking controller to M3;
when the high signal of the material level switch B lasts for N5 seconds, the control system sends a pulse command to open the blanking controller to M4; n3> N4> N5; blanking amount M2> blanking amount M3> blanking amount M4.
Further, when the low signal of the material level switch C lasts for N5 seconds, the control system sends a pulse command to turn off the blanking controller to M5;
when the low signal of the material level switch C lasts for N6 seconds, the control system sends a pulse command to turn off the blanking controller to reduce the blanking amount to M6;
when the low signal of the material level switch C lasts for N7 seconds, the control system sends a pulse command to turn off the blanking controller to reduce the blanking amount to M7; n5> N6> N7; blanking amount M5> blanking amount M6> blanking amount M7.
Further, when the low signal of the material level switch D lasts for N8 seconds, the control system sends a pulse command to turn off the blanking controller to M8; when the low signal of the material level switch D lasts for N9 seconds, the control system sends out a pulse command to completely switch off the blanking controller and sends out a system interlocking stop signal; n9> N8.
Compared with the prior control system, the utility model has the advantages of: the control system of the invention comprises a gas-solid separator, a dipleg, a blanking controller, a pyrolysis reactor, four material level switches arranged at high, low and low positions, a garbage feeding mechanism and a control system, wherein the material seal height is kept in the control system and has the highest control operation right, when the material level exceeds the high or low position, the control system automatically adjusts the material level of the blanking controller to return to the position between the high and low positions, and detects the control effect by using time and automatically and monotonously adjusts and accelerates the return.
Drawings
Fig. 1 is a schematic structural diagram of a material level control system with a preferential material seal.
In the figure: the device comprises a gas-solid separator inlet (1), a gas-solid separator (2), a dipleg (3), a blanking controller (4), a pyrolysis reactor (5), a material level switch A (6), a material level switch B (7), a material level switch C (8), a material level switch D (9) and a garbage feeding mechanism (10).
Detailed Description
The technical solution of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in figure 1, the high-temperature solid heat carrier is separated from the gas-solid separator and falls into the 3 dipleg, and forms a certain height to isolate the high-temperature flue gas from flowing into the 5 reactor, and simultaneously, the combustible pyrolysis gas in the 5 reactor can be prevented from entering the 2 gas-solid separator, otherwise, deflagration or explosion accidents are easy to happen. The solid heat carrier in the 3 dipleg continuously controls the blanking speed through the 4 blanking controller to keep the heat carrier to provide enough heat for the pyrolysis reaction of the garbage in the 5 reactor, and a certain material seal height is kept in the 3 dipleg to isolate the diffusion and mixing of gas between the 5 reactor and the 2 gas-solid separator.
The utility model relates to a material seals preferential material level control system, the device include gas solid separator entry 1, gas solid separator 2, dipleg 3, unloading controller 4, pyrolytic reaction ware 5, material level switch A6, material level switch B7, material level switch C8, material level switch D9, rubbish feed mechanism 10.
High-temperature flue gas from the solid heat carrier furnace carries a solid heat carrier and enters a rotary cylinder of a gas-solid separator 2 from an inlet 1 of the gas-solid separator, the high-temperature flue gas in the high-temperature flue gas upwards passes through a flue gas outlet pipeline and enters a flue gas purification system, and the solid heat carrier falls downwards into a dipleg 3 and forms a material level height in the dipleg 3;
when the pyrolysis reactor 5 works, broken garbage enters the reactor through the garbage feeding mechanism 10, a high-temperature heat carrier in the dipleg 3 falls into the pyrolysis reactor 5 through the blanking controller 4, and the garbage and the high-temperature heat carrier are stirred, mixed and transferred in the pyrolysis reactor 5 to complete garbage pyrolysis;
a material level switch A6, a material level switch B7, a material level switch C8 and a material level switch D9 are arranged at different positions on the dipleg 3, and the height of the high-temperature heat carrier in the dipleg 3 is detected through the material level switches;
the material level in the dipleg 3 is high to prevent high-temperature flue gas from flowing downwards into the pyrolysis reactor 5, and simultaneously, combustible pyrolysis gas in the pyrolysis reactor 5 is prevented from entering the gas-solid separator 2;
the material level of the high-temperature heat carrier in the dipleg 3 is controlled by the blanking controller 4, and when the material level is higher than the set height of the system, the blanking controller 4 increases the blanking amount to reduce the material level; when the material level is lower than the set height of the system, the blanking controller 4 reduces the blanking amount to raise the material level; when the material level is in the normal height range set by the system, the blanking amount of the blanking controller 4 is controlled by the required reaction final temperature of the pyrolysis reactor.
In the embodiment, the positions of the level switch a6, the level switch B7, the level switch C8 and the level switch D9 are respectively high, low and low;
when the high signal of the material level switch A6 lasts for N1 seconds, the control system sends out a pulse command to completely turn off the blanking controller and sends out a system interlocking stop signal;
when the high signal of the material level switch A6 lasts for N2 seconds, the control system sends out a pulse command to automatically turn on the blanking controller to increase the blanking amount to M1;
N1>N2；
when the high signal of the material level switch B7 lasts for N3 seconds, the control system sends out a pulse command to open the blanking controller to M2;
when the high signal of the material level switch B7 lasts for N4 seconds, the control system sends out a pulse command to open the blanking controller to M3;
when the high signal of the material level switch B7 lasts for N5 seconds, the control system sends out a pulse command to open the blanking controller to M4;
n3> N4> N5; the blanking amount is M2, M3 and M4;
when the low signal of the material level switch C8 lasts for N5 seconds, the control system sends out a pulse command to turn off the blanking controller to M5;
when the low signal of the material level switch C8 lasts for N6 seconds, the control system sends out a pulse command to turn off the blanking controller to M6;
when the low signal of the material level switch C8 lasts for N7 seconds, the control system sends out a pulse command to turn off the blanking controller to M7;
n5> N6> N7; the blanking amount is M5, M6 and M7;
when the low signal of the material level switch D9 lasts N8 seconds, the control system sends out a pulse command to turn off the blanking controller to M8;
when the low signal of the material level switch D9 lasts N9 seconds, the control system sends out a pulse command to completely turn off the blanking controller and sends out a system interlocking stop signal;
N9>N8。
the above embodiments illustrate the principles of the present invention, but do not limit the scope of the present invention. It should be understood by those skilled in the art that other variations or modifications which conform to the principles of the present invention may be derived directly or indirectly from the disclosure of the present invention and the accompanying drawings without departing from the principles of the invention and are intended to be included within the scope of the invention.
Claims (2)
1. A material level control system with a preferential material seal is characterized in that: the device comprises a gas-solid separator inlet (1), a gas-solid separator (2), a dipleg (3), a blanking controller (4), a pyrolysis reactor (5), a material level switch A (6), a material level switch B (7), a material level switch C (8), a material level switch D (9) and a garbage feeding mechanism (10);
high-temperature flue gas from the solid heat carrier furnace carries a solid heat carrier to enter a rotary cylinder of a gas-solid separator (2) from an inlet (1) of the gas-solid separator, wherein the high-temperature flue gas upwards passes through a flue gas outlet pipeline to a flue gas purification system, and the solid heat carrier falls down into a dipleg (3) and forms a material level height in the dipleg (3);
when the pyrolysis reactor (5) works, broken garbage enters the reactor through the garbage feeding mechanism (10), a high-temperature heat carrier in the dipleg (3) falls into the pyrolysis reactor (5) through the blanking controller (4), and the garbage and the high-temperature heat carrier are stirred, mixed and transferred in the pyrolysis reactor (5) to complete garbage pyrolysis;
a material level switch A (6), a material level switch B (7), a material level switch C (8) and a material level switch D (9) are arranged at different positions on the dipleg (3), and the height of the high-temperature heat carrier in the dipleg (3) is detected through the material level switches;
the material level in the dipleg (3) is highly isolated from high-temperature flue gas flowing into the pyrolysis reactor (5) and simultaneously prevents combustible pyrolysis gas in the pyrolysis reactor (5) from entering the gas-solid separator (2);
the material level of the high-temperature heat carrier in the dipleg (3) is controlled by a blanking controller (4).
2. A seal priority level control system as claimed in claim 1 wherein: the corresponding positions of the material level switch A (6), the material level switch B (7), the material level switch C (8) and the material level switch D (9) are high, low and low.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020102696.XU CN212954995U (en) | 2020-01-17 | 2020-01-17 | Material level control system with material sealing priority |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020102696.XU CN212954995U (en) | 2020-01-17 | 2020-01-17 | Material level control system with material sealing priority |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212954995U true CN212954995U (en) | 2021-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020102696.XU Active CN212954995U (en) | 2020-01-17 | 2020-01-17 | Material level control system with material sealing priority |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212954995U (en) |
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2020
- 2020-01-17 CN CN202020102696.XU patent/CN212954995U/en active Active
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