CN214004521U - Low-temperature oxygen-enriched coal gas supply system for gas retort - Google Patents
Low-temperature oxygen-enriched coal gas supply system for gas retort Download PDFInfo
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- CN214004521U CN214004521U CN202022485383.XU CN202022485383U CN214004521U CN 214004521 U CN214004521 U CN 214004521U CN 202022485383 U CN202022485383 U CN 202022485383U CN 214004521 U CN214004521 U CN 214004521U
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Abstract
A gas supply system of a low-temperature oxygen-enriched coal carbonization furnace comprises an air pipe, a pure oxygen pipe, a gas pipe, a regulating valve I, a one-way valve I, a regulating valve II, a one-way valve II, a regulating valve III, a one-way valve III, a gas mixing fan, a controller, a temperature sensor and the low-temperature carbonization furnace. The utility model has the advantages of it is following: the temperature in the low-temperature carbonization furnace is measured through a temperature sensor, the opening degrees of an adjusting valve I, an adjusting valve II and an adjusting valve III are controlled by a controller to adjust the oxygen content in the furnace, oxygen enrichment or pure oxygen is matched with coal gas to be combusted in the furnace to generate high-temperature waste gas which is used as a basic heat source required by coal carbonization, the high-temperature waste gas is mixed with low-temperature carbonization coal gas (cold coal gas after tar removal) generated in the carbonization process to prepare high-temperature circulating gas with the temperature meeting the low-temperature carbonization requirement of the coal, and finally the heat value of the coal gas is improved.
Description
Technical Field
The utility model relates to a coal gas retort gas supply system technical field, concretely relates to low temperature oxygen boosting coal gas retort gas supply system.
Background
Semi coke is an important coal chemical product, and the existing semi coke production process mainly adopts an internal heating type low-temperature dry distillation furnace process. At present, air is mostly adopted as a combustion supporter of an internal heating process in the production process of semi coke, so that coal gas contains a large amount of nitrogen, and the calorific value of the coal gas is greatly reduced. According to actual detection, the heat value of the gas in the prior art is 7500KJ/m3Left and right. The gas is burnt by air blowing, so that the content of effective components of the gas is low, the nitrogen content is high, the calorific value of the gas is low, the output is large, and the comprehensive utilization is difficult.
SUMMERY OF THE UTILITY MODEL
For solving the defect that exists among the prior art, the utility model aims to provide a low temperature oxygen boosting coal gas retort gas supply system utilizes the oxygen boosting combustion technique that oxygen content is 30-100%, with oxygen boosting or pure oxygen and coal gas cooperation in the stove burning production high temperature waste gas and as the required basic heat source of coal dry distillation, through mixing with the low temperature dry distillation coal gas (the cold coal gas after the desorption tar) that the dry distillation process produced, configure into the high temperature cycle gas that accords with coal low temperature dry distillation requirement temperature, and finally improve the coal gas calorific value.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a low temperature oxygen boosting coal gas retort air supply system, includes air hose 1, pure oxygen pipe 2, gas pipe 3, governing valve I4, check valve I5, governing valve II 6, check valve II 7, governing valve III 8, check valve III 9, mixes gas fan 10, controller 11, temperature sensor 12, low temperature gas retort 13.
The air pipe 1 supplies air to the low-temperature gas retort 13, the regulating valve II 6 and the one-way valve II 7 are sequentially arranged on a pipeline of the air pipe 1, and the air pipe 1 is also provided with a pressure gauge, a temperature gauge and a flow meter to measure the pressure, the temperature and the flow of gas entering the furnace.
The pure oxygen pipe 2 supplies pure oxygen to the low-temperature retort 13, the regulating valve I4 and the one-way valve I5 are sequentially arranged on a pipeline of the pure oxygen pipe 2, and the pure oxygen pipe 2 is also provided with a pressure gauge, a temperature gauge and a flow meter to measure the pressure, the temperature and the flow of gas entering the furnace.
The gas pipe 3 supplies gas to the low-temperature gas retort 13, the regulating valve III 8 and the one-way valve III 9 are sequentially arranged on the pipeline of the gas pipe 3, and the gas pipe 3 is also provided with a pressure gauge, a temperature gauge and a flow meter to measure the pressure, the temperature and the flow of gas entering the furnace.
The gas mixing fan 10 is installed at the inlet of the low-temperature gas retort 13, and the temperature sensor 12 is installed in the low-temperature gas retort 13.
The controller 11 is respectively connected with the regulating valve I4, the regulating valve II 6, the regulating valve III 8 and the temperature sensor 12 through signal lines, and the controller 11 is a PLC (programmable logic controller).
Compared with the prior art, the utility model has the advantages of it is following.
1. The utility model relates to a low temperature oxygen boosting coal gas retort air supply system passes through temperature sensor 11 and measures 13 interior temperatures of low temperature gas retort and utilizes controller 11 control governing valve I4, governing valve II 6, the III 8 apertures of governing valve in order to adjust the interior oxygen content of stove, realizes low temperature oxygen boosting dry distillation production.
2. The utility model relates to a low temperature oxygen boosting coal gas retort gas supply system utilizes the oxygen that gas mixing fan 10 is, coal gas mixture is more even.
3. The utility model relates to a low temperature oxygen boosting coal gas retort gas supply system utilizes the oxygen boosting burning to reduce the nitrogen gas in the coal gas, improves the coal gas calorific value.
Drawings
FIG. 1 is a gas supply system diagram of the low-temperature oxygen-enriched coal retort of the utility model.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in figure 1, the utility model provides a low temperature oxygen boosting coal gas retort gas supply system, including air hose 1, pure oxygen pipe 2, gas pipe 3, governing valve I4, check valve I5, governing valve II 6, check valve II 7, governing valve III 8, check valve III 9, mix gas fan 10, controller 11, temperature sensor 12, low temperature gas retort 13.
The air pipe 1 supplies air to the low-temperature gas retort 13, the regulating valve II 6 and the one-way valve II 7 are sequentially arranged on a pipeline of the air pipe 1, and the air pipe 1 is also provided with a pressure gauge, a temperature gauge and a flow meter.
The pure oxygen pipe 2 supplies pure oxygen to the low-temperature retort 13, the regulating valve I4 and the one-way valve I5 are sequentially arranged on a pipeline of the pure oxygen pipe 2, and the pure oxygen pipe 2 is also provided with a pressure gauge, a temperature gauge and a flow meter.
The gas pipe 3 supplies gas to the low-temperature gas retort 13, the regulating valve III 8 and the one-way valve III 9 are sequentially arranged on a pipeline of the gas pipe 3, and the gas pipe 3 is also provided with a pressure gauge, a temperature gauge and a flow meter.
The gas mixing fan 10 is installed at the inlet of the low-temperature gas retort 13, and the temperature sensor 12 is installed in the low-temperature gas retort 13.
And the controller 11 is respectively connected with the regulating valve I4, the regulating valve II 6, the regulating valve III 8 and the temperature sensor 12 through signal lines.
The utility model discloses specific embodiment: the utility model utilizes the controller 11 to control the opening degree of the regulating valve I4, the regulating valve II 6 and the regulating valve III 8 according to the oxygen concentration requirement and the total air supply quantity of the low-temperature gas retort 13, when the temperature in the low-temperature gas retort 13 is higher than a set value, the controller 11 reduces the opening degree of the regulating valve I4 on the pure oxygen pipe 2, and increases the opening degree of the regulating valve III 8 on the gas pipe 3 and the opening degree of the regulating valve II 6 on the air pipe 1; when the temperature in the low-temperature carbonization furnace 13 is lower than a set value, the controller 11 increases the opening degree of the regulating valve I4 on the pure oxygen pipe 2 and the opening degree of the regulating valve III 8 on the gas pipe 3, reduces the opening degree of the regulating valve II 6 on the air pipe 1, and controls the temperature in the furnace by regulating the proportion of air, pure oxygen and gas so as to realize low-temperature oxygen-enriched carbonization production.
Claims (5)
1. The utility model provides a low temperature oxygen boosting coal gas retort air supply system, includes air pipe (1), pure oxygen pipe (2), gas pipe (3), governing valve I (4), check valve I (5), governing valve II (6), check valve II (7), governing valve III (8), check valve III (9), mixes gas fan (10), controller (11), temperature sensor (12), low temperature gas retort (13), its characterized in that: the regulating valve II (6) and the one-way valve II (7) are sequentially arranged on a pipeline of the air pipe (1), the regulating valve I (4) and the one-way valve I (5) are sequentially arranged on a pipeline of the pure oxygen pipe (2), and the regulating valve III (8) and the one-way valve III (9) are sequentially arranged on a pipeline of the gas pipe (3); the gas mixing fan (10) is arranged at the inlet of the low-temperature retort (13), and the temperature sensor (12) is arranged in the low-temperature retort (13); and the controller (11) is respectively connected with the regulating valve I (4), the regulating valve II (6), the regulating valve III (8) and the temperature sensor (12) through signal lines.
2. The gas supply system of the low-temperature oxygen-enriched coal retort according to claim 1, characterized in that a pressure gauge, a temperature gauge and a flow meter are further installed on the air pipe (1).
3. The gas supply system of the low-temperature oxygen-enriched coal retort according to claim 1, characterized in that a pressure gauge, a temperature gauge and a flow meter are further installed on the pure oxygen pipe (2).
4. The gas supply system of the low-temperature oxygen-enriched coal retort according to claim 1, characterized in that a pressure gauge, a temperature gauge and a flow meter are further installed on the gas pipe (3).
5. The gas supply system of the low-temperature oxygen-enriched coal retort according to claim 1, characterized in that the controller (11) is a PLC controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022485383.XU CN214004521U (en) | 2020-11-02 | 2020-11-02 | Low-temperature oxygen-enriched coal gas supply system for gas retort |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022485383.XU CN214004521U (en) | 2020-11-02 | 2020-11-02 | Low-temperature oxygen-enriched coal gas supply system for gas retort |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214004521U true CN214004521U (en) | 2021-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022485383.XU Active CN214004521U (en) | 2020-11-02 | 2020-11-02 | Low-temperature oxygen-enriched coal gas supply system for gas retort |
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| CN (1) | CN214004521U (en) |
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2020
- 2020-11-02 CN CN202022485383.XU patent/CN214004521U/en active Active
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